How does the Jilex pump automatics work? Dzhileks automatic control unit pressure adjustment setting. We connect an electronic unit for automation for submersible pumps

Automation mechanisms for the pump are used to ensure autonomous work devices with the appropriate mode setting. In addition, high-quality automation protects the pumps from dry running and saves energy consumption. This approach allows you to extend the life of expensive pumping equipment.

A feature of Jileks' automation is the ability to use devices both with branded models and with devices from other manufacturers. In addition, inexpensive equipment has a number of other useful properties.

1 Features of the control unit of the company

The main element of the company's pumping process automation is the Jileks automation unit. Such a device is connected directly to the pumping device and reacts to the pressure level in the system.

The Jileks block consists of a plastic case with a metal cover. Inside the body there is a spring, an electronic unit, complete with a pressure switch and a movable mechanism that closes the contacts when the pressure drops. For external control over the operation of the device, a pressure gauge is mounted on the side surface of the unit.

The device is designed to operate on the basis of a pumping station or other surface pump that transfers clean water... Use with a low content of abrasive impurities is also possible, but in this case the device is equipped with an additional filter.

1.1 Principle of operation of the device

Dzhileks automatic equipment functions independently from the usual electrical network. After 30 seconds after installing and connecting the unit, it turns on and works within a few seconds. Then the device turns off and is activated only in case of a change in the pressure in the line.

When the tap at the point of water consumption is opened, the pressure in the pipe begins to decrease rapidly. In this case, the unit immediately turns on and, when the minimum pressure indicator is reached, activates the electric pump. The device pumps water until the pressure is equalized again (when the tap is closed). After the tap is closed, the device works for another 5-20 seconds, continuing to pump water into the line. This measure is a precaution in case the pressure in the system drops below normal and the device is not able to track the pressure level.

1.2 JELEX AUTOMATION UNIT (JILEX): LOOKING INSIDE (VIDEO)

2 Correct installation of the device

Dzhileks 9001 automatic equipment is installed in the supply line complete with additional equipment. Therefore, an important step is correct installation and setting up all components. The installation of the automatic control unit from Dzhileks is carried out in the following order:

First of all, if you purchased a modification without measuring instruments, you should purchase a pressure gauge and install it on the side panel. The mechanism is required to monitor and control the unit.
The automatic device itself cuts into the water main in the area between the point of water consumption (tap) and the pumping device. The unit is installed exclusively in a vertical position, with a blue metal cover up. In this case, the inlet of the device (indicated in the instructions) must be located on the side of the pump outlet. The outlet leads the water further into the supply line.
After the control device is mounted in the line, it is necessary to carefully inspect all joints and connections for tightness. If errors are found during installation, they should be sealed with sealant or connecting elements.
The connection of the unit to the network is carried out strictly according to the scheme indicated in the instructions. Moreover, if the device completes a pump with a current of more than 10 amperes, a magnetic starter is additionally installed. The main requirement for the electrical cable used with the device is increased resistance to high temperatures.

If necessary, the supply line is supplemented with filters for water purification and a receiver to equalize the pressure in the system.

After all the components are installed in the line, it is necessary to check the device. For this, the pump inlet through the pipeline is filled with liquid and the pump is turned on. One of the indicators on the unit immediately lights up. This indicates that there is contact between the unit and the pumping device. Within a few tens of seconds, the device works and then turns off.

After the device is turned off, it is necessary to open one of the taps (if there are multilevel ones, then the topmost one is desirable). However, there are two options:

In the first case, water will flow from the tap in a continuous, uninterrupted flow. The unit turns on, and the pumping device operates throughout the entire period of use of the crane. In this case, the device is installed correctly.
If the water flow is unstable or absent altogether, you can try to restart the device with the "Reset" button. The button is pressed and held until the pumping device works. If, in this case, nothing has changed, a thorough inspection of the device and the entire line is carried out, and, if necessary, dismantling and adjustment.

3 Unit-compatible pumping units

Automation from Dzhileks is a universal device. With its help, the operation of pumping devices from various manufacturers can be regulated. Regarding the principle of operation, such a pressure equalization mechanism is installed on a vibration, centrifugal, vortex, screw pump.

The device works most effectively in combination with pumping devices that meet the following characteristics:

current strength in the range of 6-10 A;
device productivity up to 100 l / min;
voltage not higher than 250 V;
the maximum temperature limit of the pumped liquid is 75 degrees;
connection to a pipe with a cross section of 1 inch.

4 Other options for Jileks automation

In addition to the automation unit, the company also produces less popular automation options for pumping equipment. One of these options is the installation of Jilex Crab. The device is responsible for a stable pressure in the supply line, starts and stops the pump if necessary. In addition, the filter element removes solids from the stream.

Jilex Crab consists of the following components:

polymer hydraulic valve;
receiver tank with a volume of 24 or 50 liters, covered with anti-corrosion enamel;
electrical pressure switch;
a filter with a replaceable cartridge, which is responsible for cleaning the water stream from impurities;
pressure gauge;
two electrical cables;
special bracket for fixing the unit to the wall.

The device operates on the basis of a standard 220 V electrical network. Suitable for simultaneous connection of 2-3 water intake points. An adjustable relay allows you to set, even before starting work, the pressure level that the device will maintain. Like the previous type of devices, the Crab 50 is a universal device and is suitable for connection to borehole pumps of any manufacturer.

4.1 Pressure switch RDM-5

A simpler option for automating a pumping station is to install a special relay RDM-5 on it. The compact device is installed in the pipeline and connected to the pumping unit using an electric cable. The wire is fixed to the relay contacts.

The principle of operation of the device is as follows. The device reacts to the pressure level in the line. If the indicator is below the set value, the contacts are connected, the current is supplied to the water intake point and the liquid fills the pipeline until the pressure returns to normal. When the pressure level returns to normal (this indicator is also set by the user), the contacts diverge. The supply of current to the downhole apparatus is interrupted and it is turned off.

The minimum and maximum indicators at which the pumping device is triggered are set by the user. They can be adjusted using two nuts that fix the degree of spring tension. A larger nut, when turned counterclockwise, sets the maximum pressure, a smaller nut, when rotating, allows you to adjust the difference between the maximum and minimum value.

RDM-5 is designed to be used exclusively in water. The operating voltage for the device is 220-230 V. The temperature of the pumped liquid is 0-40 degrees. The relay is fixed to the ¼ ”pipeline. A prerequisite for using the RDM-5 is a high-quality grounding.

4.2 Float switch Jileks

For drainage, sewage and surface water pumps, the cheapest and most practical automation method is a float switch. According to the scope of use, such devices are divided into light and heavy. Drainage models are equipped with a light float, heavy floats are installed at water supply stations and water pumps.

The structure consists of an electric cable 3.5, 8 or 10 m long and a plastic float mechanism. Inside the float there are two contacts, a switch lever and a ball that changes the position of the lever. By the number of wires, two and three-wire floats are distinguished.

In the version with two wires, they are directly connected to the contacts of the float. When such a mechanism rises with the water level to the designated level, the lever presses on the contacts, they close and supply energy to the pump.

In models with three wires, the ability to turn on the fence point in the upper and lower positions is supported. To do this, one wire goes to one of the contacts, and the other two wires, depending on the position, go to the second contact.

The principle of operation of such a float mechanism is that the device automatically turns on the pump when the water level rises to the set value. In the case of a two-wire device, the float, on the contrary, opens the contacts and turns off the device when the water falls below normal.

We offer for sale modern automation units for pumps manufactured by Dzhileks. Before buying an automatic device, we suggest that you familiarize yourself with its characteristics.

The automation unit (automatic device) allows you to automate the operation of the electric pump, start it when the pressure drops (when the tap is opened) and stop it when the water flow in the water supply system stops (when the tap is closed). In addition, the automation unit protects the pump from running without water ("dry running").

The automation unit is designed for pumping clean water that does not contain solid particles. In the presence of solid particles, it is necessary to install a filter at the entrance to the automation unit. The presence of a pressure gauge provides visual control of the pressure in the water supply system.

Operating principle

The automation unit starts the electric pump within 20-25 seconds after connecting to the mains. Subsequent starts of the electric pump occur when the starting pressure is reached, under the influence of opening the valve. Unlike systems with a pressure-tank switch, the condition for stopping the electric pump is not dictated by the achievement of a certain pressure in the system, but is determined by a decrease in flow to minimum values. As soon as the automation unit detects this condition, it stops the electric pump with a delay in the interval of 7 + 15 seconds, the timing logic is aimed at reducing the frequency of operation of the electric pump in low flow conditions.

The automation unit can be used in conjunction with the RDM-5 pressure switch

Installation

1. The pressure gauge can be mounted on one of the two sides of the automation box using an O-ring and two fixing screws. Having chosen a convenient location of the pressure gauge, plug the hole on the opposite side with a screw without using any seal. Install the automation unit in a strictly vertical position at any point located between the pump feed and the first water intake point (tap) so that the inlet (1 ″ external thread) is connected to the direction of the water flow out of the pump, and the side outlet (external thread 1 ″) corresponded to the direction of flow in the pipeline. Make sure that the hydraulic connections are completely tight. In the case of using an electric pump with a maximum pressure of over 10 bar, it is necessary to install a pressure reducer at the inlet to the automation unit.

2.For the electrical connection, follow the diagram shown on the cover of the circuit board. When using the automation unit with three-phase or single-phase electric pumps with a switching current of more than 10 A, use an electromagnetic starter. It is necessary to use an electric cable with a thermal resistance of at least 99 ° C.

3. The starting pressure is set to 1.5 bar, which is the optimal value for most applications. This value can be changed using the adjusting screw located on the top of the automation box labeled "+" and "-".

Automation unit startup

ATTENTION: If the level of the filled water is lower than the level at which the pump is installed, it is imperative to use a bottom check valve on the suction pipe.

1. Before starting the operation, completely fill the suction pipe and the electric pump with water and start the latter, thereby giving power to the “NETWORK” automation unit. After stopping the electric pump, open the tap located at the highest point.

2. The setting is correct if the electric pump runs continuously and there is a regular flow of water at the outlet of the tap. In the absence of water flow, it is possible to prolong the operation of the electric pump by holding down the "RESET" button, for an interval exceeding the timekeeping time of the automation unit. If, in this case, there is no flow, you should turn off the power supply to the electric pump, and repeat the procedure starting from item 1.

Dry code protection

The red PROTECTION indicator lights up when the electric pump is switched off, signaling the danger of dry running. After making sure that the suction line is filled with water, start the electric pump by pressing the "RESET" button.

www.agrovodcom.ru

1 Total pump automation

The Jileks Crab automation unit is a device that automates the operation of an electric pump. It turns on the system when the pressure drops (the valve opens), and turns it off when the flow stops (the valve closes). Automation also consists in protecting the pumping station when it is "idle" - working without water, on "dry running".

Automatic Jilex the block only applies to clean water, which does not contain solids. If the latter are available, then a filter element must be purchased separately for the automation unit. And if you mount a pressure gauge, then the pressure can be monitored visually.
to the menu

1.1 How does it work?

The Dzhileks 9001 automatic unit turns on 30 seconds after connecting to the mains. Then it shuts down and goes to sleep. Further switching on of the device occurs when the pressure changes - opening and closing the valve.

As soon as the pressure level drops to the minimum allowable rate, the control element of the automation will turn off the pump. So the safety and efficiency of the device is significantly extended.

After reducing the pressure to the minimum acceptable level the system will not turn off immediately, but after a few tens of seconds (as a rule, from five to twenty, depending on the specific model). The delay in turning off the pumps is needed so that, with a weak water pressure, it does not systematically turn off. This helps to extend the life of the system.
to the menu

1.2 Jelex Automation Unit (Jileks): considering the insides (video)

to the menu

1.3 Installation

To automate pump control, you need to purchase the appropriate additional components for it (depending on your needs), and connect them in the following sequence:

The pressure gauge is attached to the side of the automatic unit using the supplied mounting hardware. Which side to fix - "a matter of discretion." But, it is important to carefully fix the device to the panel without using sealing elements.
The automation unit is mounted exclusively in a vertical position. It can also be fixed in any convenient place, but in the section between the tap (the first water intake point) and the pump supply system. Moreover, this must be done so that the external inlet of the system is adjacent to the water outlet from the pump, and the lateral outlet is adjacent to the water flow in the pipe.
All connections must be tightly secured. It is worth making sure of their tightness and rechecking the correctness of connection of all connecting elements.
If automatic equipment is used for electric pumping systems with a maximum pressure threshold of 15 bar, then a pressure reducer is mounted at the input of the automation.
The device housing (or circuit board) contains electrical circuit automation connections. Follow it strictly when connecting! If a single or three-phase pump with an operating current of more than 10 Amperes is used, the automation must be connected via an electromagnetic starter. The cable used to connect the device must be resistant to high temperatures (above 100 degrees) and non-combustible.

Automatic regulation and operation of systems (minimum head) is designed for a pressure of 2 atm. This option is the most common and optimal for most systems. But, this parameter can be easily adjusted if necessary. This is done by rotating the crane, which is on top. automatic system, and has markers "plus" and "minus".

1.4 Starting the automatic system

Important! When the level of the incoming water is lower than the level at which the pumping system is installed, it is imperative to install a non-return bottom valve on the inlet pipe.

We start the automation as follows:

Immediately before turning on the device, fill the inlet pipe of the pump with water and start it up (the "Network" LED should light up). This manipulation will turn on the automation unit. As soon as the pump starts to work and after a while stops, you need to open the outlet valve, which is at the highest point.
If the pump runs all the time with the tap open and provides a continuous flow of water, the installation is considered correct. The lack of water flow means that you need to hold down the "Reset" button and hold it for the duration of the automatic system response time. If, with such manipulation, the flow is still absent, you need to repeat the launch.

1.5 Idling protection

When the "Protection" LED on the automation unit lights up, and the pump itself is turned off, this may indicate the danger of idle operation of the system. This is how press control works.

Recheck all systems. If everything is in order, drain the water from the incoming system and refill it. Then click the "Restart" button.
to the menu

2 Optimal pump automation characteristics

Vibrating or any other type of pump can be additionally equipped with automation systems. But, they have different parameters, properties, etc. Which ones should you buy?

Technical indicators (optimal):

Working voltage = 210-250 V;
Frequency = 40/70 Hz;
Minimum working pressure = 1-4 atm .;
Load current = 6-10 A;
Water flow rate = 70-100 l / min;
Upper pressure threshold = 15 atm .;
Limit water temperature = 75 degrees;
Inlet pipe diameter = 1 inch;
Protection degree = 1P65.

2.1 What you need to know?

Important! The valve located in the pipe section between the automatic / pumping systems and the valve running on the outlet pipe of the automatic unit are the culprits of equipment malfunction.

The minimum working pressure of the equipment must not be changed by yourself. This should be done by electricians who have experience, are familiar with regulatory documents and comply with safety standards.

The maximum working pressure is not automatically regulated. It corresponds to the indicator of the electric pump.

nasosovnet.ru

Principle of operation

Despite the fact that the relay regulates the pressure of the water pressure, its mechanisms provide for electrical components. Under water pressure, two contacts are closed, this is how the connection to the mains is carried out:

when the head is below the set upper pressure limit, the relay contacts remain closed, the pump continues to pump water;
when the pressure exceeds the upper pressure limit, the contacts open, the pump stops working.

The principle of operation is not complicated, but consumers have some difficulties when the pressure switch is adjusted, the lower and upper limits are set.

Adjustment technique

The pressure switch setting by manufacturers in factories is not always accurate or not suitable for local operating conditions. But the design is made so that every owner without special problems adjusted the necessary parameters myself. In private houses, pumps at the water supply point in front of the accumulator must create a head pressure of at least 1.4 atmospheres. Otherwise, the adjustment does not make sense, the contacts will not close, and the pump will not turn on. There must be a pressure gauge at the connection point, according to its readings, the magnitude of the pressure is judged:

Relay connection diagram to expansion tank

We connect the pressure switch to the receiving point, as required by the instructions, the accumulator is not connected, a plug is installed instead. The pump is connected to the mains - in this way the operation of the relay is checked at the factory settings and the tightness of the mains to the relay.
Record the pressure gauge reading (3 atmospheres).
Remove the housing cover from the relay.

Pressure Limit Adjustment Screws Under Housing Cover

Under the housing cover there are large and small nuts with springs, when the large nut rotates clockwise, the fixing spring is compressed, the upper limit increases. Decrease the upper limit by turning the large nut counterclockwise.

Adjust the pump shutdown moment with a large nut, the best option is 2.5–3 atmospheres, let's take 2.8.

Check the pressure in the accumulator, it should have a separate pressure gauge, we will assume that it is 1.5 atm. Connect the expansion vessel to the relay.

Open the tap at the highest point of the water supply, if the pressure is not enough, pump it up with a bicycle pump in the expansion tank to the required pressure.
Having opened the water, observe at what value of the pressure gauge the relay will turn on the pump. Record the low limit reading as the pump turns on when the head drops. Let's assume that this value will be 1 atmosphere.
2.8-1 - the difference between the lower and upper limits will be 1.8 atm., Which is 0.3 atmospheres more than the pressure in the expansion tank.

The operating manual specifies that the lower limit pressure should ideally be 0.2 atmospheres higher than the pressure in the expansion tank. With such an installation ratio, the number of starts for the electric pump is optimal, which significantly extends the service life of the pump and relay. The difference can be corrected with a small bolt with a spring or by changing the pressure in the accumulator, pump up or bleed air. Correctly installed pressure switches RDM 5 "Dzhileks" will make the pump mode more economical, reduce power consumption and last a long time.

domelectrik.ru

What functions does the device perform?

In private houses, where the water supply is not connected, the issue of providing drinking quality water is solved in 2 ways:

installation of a container or device of a pool filled with imported water;
drilling a well to an aquifer.

Water is supplied to the house using a pump of the required power. But the value of the water pressure during its operation is too high to connect the pump unit directly to the internal water supply networks. Therefore, an intermediate tank with a membrane is installed in the house - a hydraulic accumulator, and the required pressure in the network is maintained by the pressure switch RDM 5. The device allows you to automate the process of water supply in autonomous water supply systems.

Operating principle

The device consists of a brass body with fittings for connection to the water supply network, spring valves and an electrical relay. Outside, the elements are closed with a plastic cover. The scheme of operation of the pressure switch RDM 5 is as follows:

The manufacturer sets the device for the lowest pressure limit of 1.4 bar, the highest - 2.8 bar. When the pressure in the accumulator is less than the lower limit, the relay contacts are closed, and the pump pumps water into the intermediate membrane tank.
When the pressure rises to the upper limit (2.8 bar), the spring-loaded valve is activated and opens the relay contacts. The water supply stops.
When a water drawdown appears in the house, the accumulator begins to empty, the pressure decreases, and when the lower threshold of 1.4 bar is reached, the relay contacts close again and the pump resumes its work.

As a rule, the RDM 5 device is equipped with ready-made pumping stations, consisting of a pump, a water accumulator tank and a control relay itself. The station is set up at the factory and is completely ready for operation; all that remains is to connect it to the pipe and the mains. But finished products are not suitable for everyone for the following reasons:

the accumulator capacity is insufficient;
the head of the standard pump is small to ensure the water supply to the required height;
a submersible pump is used, lowered into the well.

In these cases, the automatic water supply system will have to be assembled from separate elements, and the pressure switch must be adjusted accordingly, coordinating its operation with the storage tank. Before purchasing and connecting a device, it is recommended to study its technical characteristics:

pressure regulation range in the water supply system - from 1 to 4.6 bar;
ambient temperature range - from 0 to +40 ° С;
minimum pressure drop - 1 bar;
supply voltage - 220 V;
diameter of fittings - DN 15, connection - G ’’.

If any of technical characteristics the RDM 5 relay does not suit you, you will have to look for another regulator. But practice shows that the parameters of this device meet the requirements of the overwhelming number of autonomous water supply systems.

How to adjust the device?

The pressure switch is set up after the installation of the internal and external water supply network of the house and connection to the electrical network.

External and internal piping connections must be verified by tests so that subsequent leaks do not interfere with the adjustment process. Due to the leakage of the joints, the pressure before or after the pump will spontaneously decrease, which will also affect the operation of the relay.

Before adjusting, you should determine the required head value. In order to supply water to all points of water intake located on different floors, it is necessary to provide the necessary pressure in the accumulator. The efforts of the tank membrane should be sufficient to push the entire volume of water to the required height and overcome all local resistances. At home, this pressure value is most often determined experimentally.

The calculation is simple: 1 m of the lifting height is equal to 10 m of the horizontal section and corresponds to a pressure of 0.1 bar. The farthest branch of the water supply is taken into account. Having approximately determined the required pressure, it is necessary to create such a pressure from the side of the air chamber of the accumulator. To do this, remove the plastic cap from the spool (usually located at the end of the tank) and pump the air chamber with a conventional automobile pump, controlling the pressure with a pressure gauge.

Without connecting the branch pipe of the internal water supply network, check how the relay works in conjunction with the pump at the factory settings. At the same time, check the tightness of the external pipeline.
Remove the plastic relay cover covering the adjusting screws.
The large screw adjusts the upper limit (pump shutdown), the small screw adjusts the differential pressure. Adjust the lower limit so that it is 0.2 bar more than you pumped into the accumulator.
To reach the exact values, you will have to adjust several times, opening the faucet taps and draining the water from the accumulator. At the same time, record the pressure gauge readings when the pump is turned off and on and correct them with the adjusting screws.

As a result of the settings, the difference between the lower and upper limits should not be less than 1 bar. Practice shows that the optimal pressure drop is about 1.5 bar, then the pump will not turn on too often. At the end of the adjustment, do not rush to put the cover back in place, follow the system for 1 day. Minor adjustments may be needed.

pikucha.ru

1 Features of the control unit of the company

The main element of the company's pumping process automation is the Jileks automation unit. Such a device is connected directly to the pumping device and reacts to the pressure level in the system.

The device is designed to work on the basis of a pumping station or other surface pump pumping clean water. Use with a low content of abrasive impurities is also possible, but in this case the device is equipped with an additional filter.
to the menu

1.1 Principle of operation of the device

1.2 JELEX AUTOMATION UNIT (JILEX): LOOKING INSIDE (VIDEO)

to the menu

2 Correct installation of the device

Dzhileks 9001 automatic equipment is installed in the supply line complete with additional equipment. Therefore, an important step is the correct installation and configuration of all components. The installation of the automatic control unit from Dzhileks is carried out in the following order:

First of all, if you purchased a modification without measuring instruments, you should purchase a pressure gauge and install it on the side panel. The mechanism is required to monitor and control the unit.
The automatic device itself cuts into the water main in the area between the point of water consumption (tap) and the pumping device. The unit is installed exclusively in a vertical position, with a blue metal cover up. In this case, the inlet of the device (indicated in the instructions) must be located on the side of the pump outlet. The outlet leads the water further into the supply line.
After the control device is mounted in the line, it is necessary to carefully inspect all joints and connections for tightness. If errors are found during installation, they should be sealed with sealant or connecting elements.
The connection of the unit to the network is carried out strictly according to the scheme indicated in the instructions. Moreover, if the device completes a pump with a current of more than 10 amperes, a magnetic starter is additionally installed. The main requirement for the electrical cable used with the device is increased resistance to high temperatures.

If necessary, the supply line is supplemented with filters for water purification and a receiver to equalize the pressure in the system.

After the device is turned off, it is necessary to open one of the taps (if there are multilevel ones, then the topmost one is desirable). However, there are two options:

In the first case, water will flow from the tap in a continuous, uninterrupted flow. The unit turns on, and the pumping device operates throughout the entire period of use of the crane. In this case, the device is installed correctly.
If the water flow is unstable or absent altogether, you can try to restart the device with the "Reset" button. The button is pressed and held until the pumping device works. If, in this case, nothing has changed, a thorough inspection of the device and the entire line is carried out, and, if necessary, dismantling and adjustment.

3 Unit-compatible pumping units

The device works most effectively in combination with pumping devices that meet the following characteristics:

current strength in the range of 6-10 A;
device productivity up to 100 l / min;
voltage not higher than 250 V;
the maximum temperature limit of the pumped liquid is 75 degrees;
connection to a pipe with a cross section of 1 inch.

4 Other options for Jileks automation

Jilex Crab consists of the following components:

polymer hydraulic valve;
receiver tank with a volume of 24 or 50 liters, covered with anti-corrosion enamel;
electrical pressure switch;
a filter with a replaceable cartridge, which is responsible for cleaning the water stream from impurities;
pressure gauge;
two electrical cables;
special bracket for fixing the unit to the wall.

4.1 Pressure switch RDM-5

4.2 Float switch Jileks

byreniepro.ru

The device and the principle of operation of the automation for the pump

There are various means of automation for pumps, among which there are dry-running blockers, water pressure switches, electronic units, sensors, etc. As a rule, electronics operate in conjunction with additional equipment (hydraulic accumulator, float switch, etc.). In this case, the regulation of the operation of the pumping group can be carried out both by pressure and by flow. An important component is a pressure gauge, which provides visual control of the parameters of the water supply network.

Today, several generations of pump automation are distinguished. Newest electronic devices are considered the most effective due to high-tech equipment, advanced functionality and more sophisticated settings.

General working principle:

when the pressure drops, the unit independently starts the pumping unit (in particular, this happens when the taps are opened);
in the absence of water flow, the electric pump is turned off (all taps are closed);
automatic shutdown of the pumping group can also occur if the fluid flow is not high enough (protection against "dry running").

www.jeelex.ru

The device and principle of operation of the water pressure switch

Structurally, the relay is made in the form of a compact block with springs of maximum and minimum pressure, the tension of which is regulated by nuts. The diaphragm, connected to the springs, reacts to changes in the pressure force. When the minimum value is reached, the spring is weakened, and when the maximum level is reached, it is compressed more. The impact on the springs causes the relay contacts to open (close), switching off or on the pump.

The presence of a relay in the water supply system allows ensuring constant pressure and the required water pressure in the system. The pump is automatically controlled. Correctly set levels of minimum and maximum pressure ensure its periodic shutdown, which contributes to a significant increase in trouble-free service life.

The sequence of operation of the pumping station under the control of the relay is as follows:

The pump pumps water into the tank.
The water pressure is constantly increasing, which can be monitored on the pressure gauge.
When the set upper limit pressure level is reached, the relay activates and turns off the pump.
As the water pumped into the tank is consumed, the pressure decreases. When it reaches a lower level, the pump will turn on again and the cycle will repeat.

The main parameters of the relay:

Lower pressure (switch-on level). The relay contacts, which turn on the pump, close, and water enters the tank.
Upper pressure (cut-off level). The relay contacts open, the pump turns off.
The pressure range is the difference between the two previous indicators.
The value of the maximum allowable shutdown pressure.

Back to content

Pressure switch setting

In the process of assembling the pumping station Special attention pays attention to setting the pressure switch. The ease of operation of the water supply system, as well as the terms of trouble-free service of all components of the device, depends on how correctly its limit levels are set.

At the first stage, you need to check the pressure that was created in the tank during the manufacture of the pumping station. Typically, the factory setting is set to 1.5 atmospheres and off to 2.5 atmospheres. Check this with an empty tank and a pumping station disconnected from the mains. It is recommended to check with an automotive mechanical pressure gauge. It is housed in a metal case, so measurements are more accurate than using electronic or plastic gauges. Their readings can be affected by both the room temperature and the battery charge level. It is desirable that the scale limit of the pressure gauge be as small as possible. Because on a scale of, say, 50 atmospheres, it will be very difficult to accurately measure one atmosphere.

To check the pressure in the tank, you need to unscrew the cap that closes the spool, connect the pressure gauge and take a reading on its scale. The air pressure should be checked periodically thereafter, eg once a month. In this case, water must be completely removed from the tank by turning off the pump and opening all the taps.

Another option is also possible - to carefully monitor the pump shutdown pressure. If it increases, this will mean a decrease in air pressure in the tank. The lower the air pressure, the more water supply can be created. However, the pressure spread from a completely filled to practically empty tank is large, and all this will depend on the preferences of the consumer.

Having chosen the desired operating mode, you need to install it, bleeding off excess air for this, or pump it up additionally. It must be borne in mind that you should not reduce the pressure to a value less than one atmosphere, and also pump it over too much. Due to the small amount of air, a rubber container filled with water inside the tank will touch its walls and wipe off. And excess air will not make it possible to pump a lot of water, since a significant part of the volume of the tank will be occupied by air.

Back to content

Setting the pump on and off pressure levels

In pumping stations, which are delivered assembled, the pressure switch is pre-configured for the optimal option. But when installing it from various elements it is imperative to carry out the setting of the relay at the place of operation. This is due to the need to ensure an effective relationship between the relay settings and the tank volume and pump head. In addition, it may be necessary to change the initial setting of the pressure switch. The procedure should be as follows:

In practice, the power of the pumps is chosen such that it does not allow pumping the tank to the extreme limit. Usually the cut-off pressure is set a couple of atmospheres above the cut-off threshold.

It is also allowed to set limit pressure levels that differ from the recommended values. In this way, you can set your own version of the operating mode of the pumping station. Moreover, when setting the pressure difference with a small nut, one must proceed from the fact that the starting point of reference should be the lower level set by the large nut. The upper level can only be set within the limits for which the system is designed. In addition, rubber hoses and other plumbing fixtures also withstand pressure no higher than the design pressure. All this must be taken into account when installing the pumping station. In addition, the excessive pressure of water from the tap is often completely unnecessary and uncomfortable.

Back to content

Pressure switch adjustment

Adjustment of the pressure switch is practiced in cases where it is necessary to set the levels of the upper and lower pressures to the specified values. For example, you want to set the upper pressure to 3 atmospheres, the lower - 1.7 atmospheres. The adjustment process is as follows:

Turn on the pump and pump water into the tank until the pressure on the pressure gauge is 3 atmospheres.
Switch off the pump.
Open the relay cover and slowly rotate the small nut until the relay picks up. Clockwise rotation of the nut means an increase in pressure, in the opposite direction - a decrease. The upper level is exposed - 3 atmospheres.
Open the tap and drain the water from the tank until the pressure on the manometer is 1.7 atmospheres.
Close the tap.
Open the relay cover and slowly rotate the large nut until the contacts engage. The lower level is exposed - 1.7 atmospheres. It should be slightly higher than the air pressure in the tank.

If given high pressure to turn off and low - to turn on, the tank is filled with a large amount of water, and there is no need to turn on the pump frequently. Inconvenience occurs only due to the large pressure drop when the tank is full or almost empty. In other cases, when the pressure range is small, and the pump often has to be pumped up, the water pressure in the system is uniform and quite comfortable.

In the next article, you will learn about connecting a hydraulic accumulator to a water supply system - the most common connection schemes.

Having an autonomous water supply on the site is an obvious advantage. The use of water from the well will be really convenient if the automatic equipment for the pump is installed: it can significantly simplify the process of water extraction.

Do-it-yourself installation of automation for water supply pumps does not seem time-consuming - this does not require a special technical education... It is enough to study what kind of automation is for a borehole pump, determine the budget for solving this problem, study the installation manual for the selected system.

It should be noted that it makes sense to install a submersible pump with automatic equipment. For the surface, which is used for watering the local area and garden plantings, automation is an unjustified cost - it will not be difficult to turn it on and off yourself.

First, you need to find out what the equipment of the borehole pump already in operation (or the one that is planned to be purchased) is equipped. Many manufacturers make equipment with a certain basic protection - against overheating, against "no-load" (dry) running, and some models are also equipped with floats.

It is necessary to choose automation for the drainage pump focusing on the existing functionality. Duplication of functions is useless, especially since it will lead to an increase in the cost of the system. Modern automation is represented by three basic categories - generations.

It installs fairly quickly as it consists of only three elements:

1 email - dry run blocker - protects the motor from overheating, since when pumping water, the liquid serves as a cooling agent for the motor that generates energy, and dry running leads to rapid overheating and breakdown of the deep pump;
2 e-mail - hydroaccumulator - works as a liquid accumulator and is an irreplaceable element of the chain;
3 e-mail - the water pressure switch for the pump has a built-in pressure gauge, with the help of which the parameters of the actuation of the contacts are set.

The operation of the 1st generation equipment is simple: when the process of water consumption begins, the pressure in the accumulator decreases. When this indicator drops to the lower edge, the relay transmits a signal to the engine to start pumping, and when the pressure rises to the upper edge, the relay automatically turns off the borehole pump.

Due to the presence of a hydroaccumulator, a certain amount of water is always left - this is convenient when there is a power outage.

Among the equipment of this category, it is worth highlighting the products of "Dzhileks", in particular "Dzhileks Crab". Equipment "Dzhileks" is not separate elements of the system, but an integral unit with a built-in hydraulic accumulator. Thanks to this, the installation of "Dzhileks" becomes even easier - the complex is installed in a few minutes on pumps for wells.
In addition to "Dzhileks", such systems as "Aquarius" and "Aquarebot Turbipress" have proven themselves well.

Rice. 1. An example of automatic equipment - pump "Jileks Crab 50".

2nd generation equipment

Such an automatic water pump is more modern and compact: it includes the borehole pump control unit itself and a set of sensors located inside the pipeline. 2nd generation equipment works without a hydraulic accumulator. However, in order to connect it, at least minimal knowledge of electrical engineering is required.

Electronic navigation is implemented in the submersible pump control unit. It receives signals from sensors, which makes it possible to control electric pumps with little or no personal involvement. This equipment consists of two elements:

1 email - electronic unit for submersible pump automation;
2 e-mail - system sensors.

Since there is no accumulator in the system, water accumulates directly in the pipeline. When the pressure drops, the sensor installed in it sends a signal to the control unit, which starts the automatic water pump, which, using vibration movements, takes water. When the pressure reaches the desired level, the pump stops its work.

The operation of both 1st and 2nd generation equipment is based on water pressure. But due to electronic control, equipment for deep water supply of this category has a higher cost.

Rice. 2. Complex "Brio 2000-M"

3rd generation equipment

The most modern and, accordingly, the most effective is the automation for a submersible pump of this particular class. Scheme of work of this equipment for a well is fundamentally different from the operation of previous generations of equipment: unlike them, which always take water in the well at the maximum engine power, the newest equipment has more fine settings. The sensors react to the amount of cold water from the accumulated volume and on the basis of the data obtained, the engine power is adjusted. Thanks to this, it is completely protected from the bulk of breakdowns, such as overheating from dry running or burnout of the windings in the event of a voltage drop.

Also, a feature of this system serving submersible pumps is the frequency conversion of the current: the motor starts and stops smoothly, which increases the service life of the equipment.

The control unit clearly regulates the power of work, and therefore submersible pumps with automatic control of the 3rd generation significantly save not only engine resources, but also energy consumption. Of course, the cost of such a submersible pump with automation is higher than that of its predecessors, but the payback is better.

Rice. 3. Automatic station "Karcher BP3"

To connect such equipment, you will need good knowledge in the field of electrical engineering, but if you have doubts in your abilities, it is better to invite a specialist.

On which automation unit for a submersible pump to choose - it depends on personal preferences, as well as on financial capabilities. Conversely, it does not matter at all how deep the channel is used in the well. The choice is great: from the simplest mechanical systems to complex - "smart" electronic.

A summer cottage or a country house in terms of functionality should be no worse than a city apartment in terms of amenities. In order to quickly and do it yourself without any help (specialists) to equip the automation of the pumps, you need to work very hard.

The most difficult task in a country house or summer cottage is the creation of a decentralized water supply. But if your water supply system is ready and capable of working, all that remains is to make the mechanism of operation, in order for the system for the submersible pump to work correctly and automatically quickly.

1 Types and differences of submersible pumps

Before we understand the automation, we must understand with you what types of pumps exist. There are only two types of submersible pumps in the world:

Vibrating.

We all know that the above types of automatic submersible pumps are installed only in the water that these pumps pump.

That is why it is called "submersible" Most summer residents and lovers of country houses believe that it is much better than superficial, but one can argue with that.

In principle, the operation of these pumps is the same for them, but the mechanism itself is different from each other. It should also be noted that their working conditions are also different. In wells of any depth, submersible pumps can be used, in them there is a need to increase the water pressure in order to pump the bushing upward. It should be noted that submersible pumps operate at a depth of up to 10 meters in a well.

If you have a well of more than ten meters, then highly specialized pumping systems are used to pump water from the depths.

It should be noted that surface models of pumps are not capable of pumping water from a well for more than ten meters. s.

For great depths, it is best to use vibrating pumps, which are most often used in water wells. But the centrifugal pump is most often used in the agricultural sector, where water supply is used.

The main element in the vibration device is the membrane. When the mechanism vibrates, the membrane deforms. This results in a pressure difference in the system. As a result, we get the effect of pumping liquid in the direction you need.

According to this principle, the following types of pumps work as:

Aquarius.
Gardena.

Before purchasing the above pumps, make sure they have a thermal switch. Also, when buying, you need to check the operation of the water intake at the bottom of the pump. If your soil is heavy at your summer cottage or country house, then it is advisable to install a vibration device as low as possible.

This is done so that the borehole (borehole walls) does not collapse, and also that the vibration device installed in the ground is not contaminated by various objects. It is also advisable to install vibration models only in fortified sources. But the pumps of the brand Aquarius, Gardena or Kid are easy to install and dismantle.

You can make repairs quickly with your own hands. If we decided to consider the working mechanism of a centrifugal pump, then we can immediately see that special wheels are attached to it to the shaft, which is only one. Here you can see that the difference in pressure is produced by the rotation of the blades on the wheels. As a result of this, the liquid is pumped in the direction you need. The most popular models in the CIS are centrifugal pumps.

There are several reasons for this. The models are stable and have acquired considerable versatility in application. Also, such pumps - models can be connected with your own hands and will not be spent on this. And this saves the cost of arranging water supply.

2 What types of automation exist for submersible pumps?

Today, there are three main types of automation for submersible pump models, and these are:

Pump control panel and control unit to it.
Press control.
Mechanism with a control unit that maintains a stable water pressure throughout the system.

If we consider the first option, we will see that it protects the pump from various voltage surges and short circuits, which can also occur.

In order for you to have everything on automation, you must first connect the automation unit to a pressure switch or to a level switch. also in individual cases for automatic operation, the system can be connected to a float switch. But this is a matter of price. This automation unit costs at least 4000-5000 rubles.

But here you need to take into account the fact that, without a pressure switch, the automation unit will not work. Also, special protection of the pump against dry running is needed here. In this case, money is wasted that will exceed 5,000 rubles and even higher. It is best to select blocks with the above systems built in.

Aquarius 4000 already has such a system. In this block, if you do the installation yourself, everything is very simple and does not require the knowledge of a special specialist. The second option is the "press control", which has a built-in system, and also has protection against dry running. You can control such a device in advance, and it includes taking into account the level of water pressure, and also the flow of water must be taken into account.

Now you have to monitor the water flow in the device, if it exceeds 50 l / min, then this device works normally, that is, in the press control mode. If there is a reduction in the water flow, or you notice that the pressure is increasing, then in this case the press control must turn on the pump, and this is protection against dry running.

2.1 We connect the electronic unit for automation for submersible pumps.

If the system increases the fluid flow in the system, and it does not exceed 50 l / min, then the system starts up when the pressure in the entire system decreases, and this is about 1.5 atmospheres.

This function is most important for conditions sharp rise pressure, where it is necessary to reduce the number of pump shutdowns and starts at minimum water flow rates. And this has a very good effect on the operation of the accumulator.

The principle of all this lies in a sharp and powerful increase in the pressure of the water pressure in the pump, and can even reach 10 atmospheres. Here, the automatic shutdown of the pump or automation is immediately triggered.

An example is a press control device such a pump model as "BRIO-2000M". Its price can please you, it does not exceed 5000 rubles. Also, this includes a pump of the Aquarius brand, their price is also from 4000 rubles. The accumulator, which belongs to the reservoir for the "Aquarius" and "BRIO" pumps, cost at least 4000 rubles. If you decide to purchase this type of automation and install it yourself, then it will be somewhat more difficult than the previous option.

Another automation option is a control unit. It consists of a mechanism that maintains a stable water pressure throughout the system. This mechanism is acceptable where it is impossible in no case to allow a sharp increase in pressure. And all this is necessary if, for example, the power consumption sharply increases, and the efficiency of the pump operation also decreases. The above can happen if the pressure rises.

It happens so that there is no increase in pressure and there are interruptions in the constant pumping of water, and this happens due to the rotation of the rotor of the pump electric motor.

The most common control units of these types can be pumps of the brand "Aquarius" and "Grundfos". Pumps "Aquarius" are popular not only in the CIS countries, but throughout Europe. Since it is not difficult to install these pumps with your own hands. They are also cheap compared to other units.

Such control units cost from 4500 rubles. The most expensive unit can reach from 10,000 rubles and more. Prices depend on the model, which can go by themselves, but there are models that are equipped with different bells and whistles, mechanisms and mini systems.

They attract the consumer to buy automatic equipment for pumps, their ease of installation. You can do it yourself to install pump automation.

Not everyone knows that pump automation requires an electronic kit. Also, for vibration pumping systems, you need to additionally install expensive equipment.

And for centrifugal pumps, you can only install a regular tank, which is equipped with electrical contacts.

It should also be noted that any submersible pump will work properly only in clean water.

If, for example, water with impurities, then the ingress of such water into the pump blades will make the automation system for the pumps unusable. And this must be clearly taken into account.

2.3 Automation for a submersible pump - video review

The pump is main element in the autonomous water supply system, which is used in private residential buildings and adjoining plots. The device of each of the pumps includes an automatic mechanism. He monitors the operation of the equipment and turns it off if necessary.

Regulating automation for the pump - types and description

The pump control automation system is a combination of various elements designed to control the operation of the pump. These elements include a command relay and a power electrical part, which, in most cases, are implemented in the following control schemes for pumping equipment modes:

When buying a relay to regulate the operation of the pump, several important factors should be taken into account: pressure, network voltage, functionality. Only after deciding on these indicators, it will be possible to select a high-quality reliable mechanism.

Protective automation - features of the device

Often, the pump breaks down due to operation with overvoltage or undervoltage in the mains. The cause of a breakdown can also be the operation of the unit without water, that is, on a dry run. When buying protective relays, you should pay attention to the value of the voltage supplying the pump and the allowed deviation from this indicator.

To effectively protect the pump from dry running, it is necessary to install a U-shaped relay in the automation mechanism, which turns off the pump in case of voltage surges. This relay also monitors phase sequence and system imbalance.

In order to protect water pumps, there are several types of devices on the market:

Start-up protection devices, which are made on printed circuit boards;
Relay blocks for control;
Devices manufactured on the basis of different microprocessors.

Most often, pump manufacturers choose relay boxes. The function of such a unit is to switch a pressure switch at currents up to 4 A.

How to connect automation to a pump - equipment and sequence

So that the pump connected to water from the well does not overheat, it is necessary to install a protective relay. It is very easy to do it yourself. To work, you will need the following equipment:

Hydraulic tank of a certain capacity;
Manometer and pressure switch;
Reducing coupling and collet-type coupling;
Plastic pipes and brass adapter.

Having prepared everything you need, you need to carefully study the relay connection diagram. Having studied the diagram, you must proceed to the installation. The work algorithm is as follows:

First you need to wrap the input of the hydraulic tank with fum tape;
After that, a transition sleeve is screwed onto the inlet of the hydraulic tank;
Next, a pressure gauge and a pressure switch must be connected to the brass adapter;
The brass adapter connects to a tank-mounted adapter sleeve;
From plastic pipe you need to make a special knee designed to connect the pressure switch, the hydraulic accumulator and the water supply system of the house;
The submersible pump hose is connected via a collet-type coupling;
At the end, you will need to connect a 220 V power supply and a pump cable to the relay contacts.

When connecting, make sure the cable wiring is securely attached to the terminal block. The polarity of both the supply pump and the voltage does not matter.