Pump control system - schematic diagram.Many owners of country houses are trying to equip them in such a way that the accommodation is no less comfortable than in a regular apartment and has centralized heating and water supply. And if you want to adjust the work of all autonomous systems on your own, then you need to prepare for a long and painstaking work. And even when the water supply system is installed, it is necessary to make it work in automatic mode at the level of operation of the pumping system.

Today we will talk about how to create automation for deep-well pumps.

Content

  • 1 Features of modern submersible pumps
  • 2 Automation for submersible pumps and its types
    • 2.1 Press control
    • 2.2 Pressure support unit
  • 3 What you need to know when installing automation for the pump

Features of modern submersible pumps

Before you start creating automation for a submersible pump, you first need to figure out what these types of pumps are.

Submersible pumps fall into two categories:

  • vibrating;
  • centrifugal.

Deep well pump of submersible type.Each of them, having an automatic control unit,

put in the liquid itselfwhich will be pumped. Even the name itself says that the pump works on the principle of immersion in a liquid.

Submersible and surface pumps have the same specificity of work, but the mechanism is different, and the conditions of use are also different.

For example, submersible pumps can be used in deep wellswhere with their help it is necessary to increase the pressure of water so that it can be pumped up. However, the maximum depth of use of submersible pumps is only 10 meters. For deeper wells, professional systems are used. It is worth adding that surface pumps can not provide pumping water from deep wells.

Vibration models are more popular.than centrifugal. They are used in water wells, but centrifugal ones are more suitable for use in the agricultural sector. The principle of operation of the vibration pump is as follows:

  • the key element of the design is the membrane;
  • it is deformed by the vibration mechanism;
  • This leads to a difference in pressure, as a result, water is pumped in the right direction.

According to this principle, the most popular models in our country work:

  • "Gardena";
  • "Kid";
  • "Aquarius".

The pump Gardena - popular option for giving or a country house.When buying a submersible pump, you need to clarify whether it is equipped with a so-called thermal switch. Also, be sure to check if it has the ability to take water in its lower part.

If you work in conditions where the ground is heavy, then you need to install a vibrating device lower so that when the pump is running, the well does not collapse and was not contaminated with foreign bodies from the ground. Vibration models should be placed exclusively in reinforced wells to avoid problems. And to dismantle the submersible device in the conditions of immersion in the sludge should be only in the process.

The models listed above are convenient both in terms of installation and disassembly, and both can be done independently.

In centrifugal devices the working mechanism consists of several wheelsattached to a single shaft. When the wheels rotate, the blades on them produce a pressure difference, due to which water is pumped in the desired direction.

The popularity of centrifugal pumps in our country is due to such factors:

  • universality of use;
  • the ability to connect by hand;
  • savings in the arrangement of the water supply system at the dacha.

Automation for submersible pumps and its types

Automation for immersion devices is divided into three categories:

  • automatic control unit in the form of a remote control;
  • press control;
  • a control unit equipped with a mechanism for maintaining a stable water pressure in the system.

Vibrating pump is used for wells or boreholes.The first option is the simplest control unit in the form of a standard remote control. This the unit protects the pump from power surges, as well as short circuits, which often accompany the operation of pumping devices. To ensure the full automatic mode of the device, the control unit of this type is connected to devices such as:

  • pressure switch;
  • level switch;
  • float switch.

The average cost of such a control unit is about 4,000 rubles, but remember that This control unit will not work without additional devices., in particular, the same pressure switch or additional protection of the device from dry running.

Of course, some models of such control units are already equipped with all the necessary systems for full-fledged work, but their cost will be about 10 thousand rubles already. You can install such a control device yourself without consulting a professional.

Press control

The next version of the automatic control device is press control. It is equipped built-in systems for automatic pump operation and passively protects against dry running. Control in this case is determined depending on the orientation on some parameters, in particular, the level of pressure and the flow of water. For example, if its consumption in the device is more than 50 liters per minute, then it will operate continuously. And if the water flow decreases or the pressure increases, the press control will turn off the pump, and this will be protection against the dry running of the pump.

If the fluid in the system does not reach 50 liters per minute, then the device starts up when the pressure drops to 1.5 atmospheresThis is very important in conditions when the pressure rises sharply and the number of on-off switchings should be reduced. Also provided for automatic shutdown of the device in a sharp and powerful increase in water pressure.

The most common press control devices on the market for control:

  • BRIO-2000M (cost - up to 4 thousand rubles);
  • "Aquarius" (4-10 thousand rubles).

The cost of a backup accumulator for both devices most often ranges from 4 thousand rubles. And remember that buying a control unit of this type, it will be more difficult to install it yourself than the previous one.

Pressure support unit

The latest version of automation for submersible pumps is a control unit that includes a mechanism maintaining a stable water pressure throughout the system. Such a mechanism is indispensable in those places where the pressure cannot be drastically increased, because if it constantly rises, it will increase the power consumption and reduce the efficiency of the pump itself.

All this is achieved through the rotation of the rotor of the electric motor of the control unit, but the regulation of the rotational speed occurs in automatic mode. The most famous models of such control units:

  • "Aquarius";
  • Grundfos.

It is worth noting that the brand "Aquarius" - the most popular in Russia and the near abroad in the market of control units for pumps. Devices of this brand attract buyers for such reasons:

  • relatively affordable price;
  • good quality blocks;
  • easy installation

The cost of different models can differ significantly, naturally, devices equipped with subsystems and additional functionality will cost much less than usual ones.

What you need to know when installing automation for the pump

Pump station - a device with their own hands.If you purchased automation for the device and found out that the selected control unit is easy to install without the help of experts, do not rush to install it. First make sure Is it equipped with an electronic kit?, or it needs to be bought additionally. So, if you have a vibration pumping system, then in addition to automation you will need to buy additional expensive equipment, but for centrifugal pumps it will be enough to put the tank with electric contacts.

Also, when working with a submersible pump, remember that will work properly only in clean water. If the water contains solid impurities, they will fall into the blades, and this can cause a breakdown of the pump engine.

Now you have an idea of ​​what are automatic control devices for submersible pumps and, you know, how they differ from each other and how to choose them correctly.