Characteristics of constant pressure water supply device

Working principle：

Constant pressure water supply device using system static pressure as the initial pressure head of the expansion tank, the use of water within the system to ensure that the system of hot water pressure as the expansion tank in the end pressure head. The initial operation of the water supply pump to the system and the pressure tank filled with water, the system is filled with excess water is squeezed into the capsule. Because of the water can not be compressed, with the increasing amount of water, the volume of the water chamber is also expanding and compressed air chamber, the pressure inside the tank is also rising. When the pressure reaches the design pressure, the water supply pump is closed by the pressure controller. When the water in the system thermal expansion makes the system pressure exceeds the design pressure, excess water through the exhaust valve to fill the tank when the recycled water in the system due to leakage or temperature drop and the volume is reduced, the system pressure decreases, the pressure drop in the capsule water was constantly pressed into the network of the system, when the minimum pressure to allow the design of system pressure, the water pump restart to supply pipelines and the gas pressure tank through the pressure controller, so the cycle.

Characteristic：

1、Save the volume telescopic expansion water tank for general floor type capsule contraction expansion to achieve the effective, available volume is only the total volume of 20% ~ 30%, the tank is relatively large, and the HGPZJZ type regulator expansion unit adopts special technical measures, and part of the regulator part is separated from the expansion, expansion device the system most of the expansion amount stored in isolation, the size of the equipment utilization rate can reach more than 90%, so the volume, height greatly reduced, saving land from 50% to 60%. It is easy to arrange and install the equipment, and it also saves the cost of the construction of the computer room.
2, Safe and reliable use of advanced automatic control system, double pump with alternating operation and accident Water Leakage double pump operation function at the same time, with a low level of protection, anti pressure instability and other functions, to ensure the safe and stable operation of unit.
3, the use of long life of stainless steel multi-stage pump and special design of inlet pressure regulator, can improve the life of the unit, at the same time meet the operating conditions under different conditions.
4, convenient installation and constant pressure water supply unit of general parts transportation, traditional on-site installation, construction difficulty, poor equipment reliability. And the pressure regulator expansion unit machine factory, the scene only need to connect the inlet and outlet and power supply, simple and quick.
5, remote control unit control cabinet is connected with the building automation system, remote control water pump start and stop the flow switch and through each water pump outlet, detecting the running state of water supply pump.