This utility model relates to an integrated control valve group for an air cooler
system, belonging to the field of
cold storage refrigeration technology. One end of the liquid supply
pipe is connected to the liquid
refrigerant supply end, and the other end is connected to the heat exchange coil. The liquid supply
pipe is equipped with a
solenoid valve, an
electronic expansion valve, and a first filter. One end of the hot gas
pipe is connected to the compressor
exhaust pipe, and the other end is connected to the water tray heating pipe. The other end of the water tray heating pipe is connected to the liquid supply pipe. The hot gas pipe is equipped with a second filter and a two-position
solenoid valve. One end of the return gas pipe is connected to the compressor suction pipe, and the other end is connected to the heat exchange coil. The return gas pipe is equipped with a two-step
solenoid valve, a temperature sensor, and a
pressure sensor. Since the control valve group of the air cooler is integrated inside the fan casing, no additional control pipelines and valves are required, reducing installation
workload and space, and also lowering the risk of
system failure. The control valve group can detect and adjust the operating status of the air cooler in real time, and regulate the
refrigerant flow rate accordingly.