When the system pressure of the closed-type air-conditioning system rises due to temperature and other factors, the overflow solenoid valve of the constant pressure equipment is opened, and the cold (hot) medium water in the closed-type system is discharged into the atmospheric tank, so that the system pressure drops to the normal set value; When the pressure of the closed air conditioning system drops due to temperature and other factors, the constant pressure equipment starts the pressure supplement pump to supplement the cold (hot) medium water in the atmospheric tank to the system to maintain the normal pressure of the system.
Exhaust function: After the system water enters the atmospheric diaphragm tank, the gas and water are separated, the separated gas is discharged through the exhaust valve, and the water discharged from the gas is injected into the system through the water pump, and the circulation is repeated, so that the air problem in the pipeline system can be effectively solved.
Equipment features:
Automatic water replenishment function: The water lost due to exhaust gas and system dripping can be monitored by the control unit in real time, and once it is lower than the set value, it will be automatically pumped and replenished by the constant pressure pump from the water tank or municipal pipe network. The control unit can monitor in real time and replenish the system pressure in time.
Automatic drain function: The water system expands due to the volume of temperature change, and when the expansion is too much for the system and tank to bear, the pressure relief valve will automatically open to ensure the safety of the system. When the pressure relief valve fails, the mechanical valve will automatically open when the pressure reaches the limit that the mechanical valve can bear. And the control unit sends out an alarm signal. When the pressure relief valve is repeatedly depressurized, the pressure relief delay can also be set to increase the stability of the equipment.