Hydroaccumulator. Purpose, adjustment, volume selection.
Posted: Mon Feb 10, 2025 6:01 am
But all the costs are fully recouped, since with a hydraulic tank, the quality of tap water is better and the service life of the pumping equipment increases significantly. Finally, it is simply convenient, because the water supply always has a stable water pressure, which is taken care of by reliable automation.
The hydraulic accumulator (diaphragm expansion tank) serves to maintain pressure in a pressurized water supply system, and when used together with a pressure relay, it allows you to create an automatic station based on a submersible or surface pump. The main purpose of the hydraulic accumulator in the system is to maintain and latvia mobile database change the liquid pressure in the system.
Additional functions performed by the hydraulic accumulator are as follows:
Protection against water hammer (changes in pressure in a liquid caused by an instantaneous change in its speed)
Ensuring a minimum water supply
Limiting intermittent pump switching on
Thus, it is the hydraulic accumulator that makes it possible to use a pressure relay and automate the water supply process. Without a hydraulic accumulator, the relay cannot work correctly, since an instantaneous change in pressure in the system (at the moment of opening a tap, disconnecting or connecting new consumers, turning on or off a pump, etc.) would cause constant operation of the relay. And this, in turn, leads to instability of supply, overheating or breakdown of the electric motor, breakdown of the relay.
Since water is practically incompressible, turning on the pump in a system with a pressure relay, but without a hydraulic accumulator, would cause an instant increase in pressure in the system and the relay would immediately react to this and turn off the pump. On the other hand, when opening the tap, the pressure would immediately drop and the relay would react, turning on the pump.
The compressibility coefficient of water = 5 x 10^10 1/ Pa. That is, an increase in water pressure (the pressure created by the pump) practically does not cause a change in its volume (these are hundredths of a percent). Therefore, the pressure in the system would change at a high speed, which would cause the relay to operate constantly.
The hydraulic accumulator (diaphragm expansion tank) serves to maintain pressure in a pressurized water supply system, and when used together with a pressure relay, it allows you to create an automatic station based on a submersible or surface pump. The main purpose of the hydraulic accumulator in the system is to maintain and latvia mobile database change the liquid pressure in the system.
Additional functions performed by the hydraulic accumulator are as follows:
Protection against water hammer (changes in pressure in a liquid caused by an instantaneous change in its speed)
Ensuring a minimum water supply
Limiting intermittent pump switching on
Thus, it is the hydraulic accumulator that makes it possible to use a pressure relay and automate the water supply process. Without a hydraulic accumulator, the relay cannot work correctly, since an instantaneous change in pressure in the system (at the moment of opening a tap, disconnecting or connecting new consumers, turning on or off a pump, etc.) would cause constant operation of the relay. And this, in turn, leads to instability of supply, overheating or breakdown of the electric motor, breakdown of the relay.
Since water is practically incompressible, turning on the pump in a system with a pressure relay, but without a hydraulic accumulator, would cause an instant increase in pressure in the system and the relay would immediately react to this and turn off the pump. On the other hand, when opening the tap, the pressure would immediately drop and the relay would react, turning on the pump.
The compressibility coefficient of water = 5 x 10^10 1/ Pa. That is, an increase in water pressure (the pressure created by the pump) practically does not cause a change in its volume (these are hundredths of a percent). Therefore, the pressure in the system would change at a high speed, which would cause the relay to operate constantly.