Overheating of water - cooled screw chiller

Poor heat dissipation and treatment of screw chiller: Compressor efficiency is low, when the condenser cooling adverse current operation, when the high pressure air cooled to 24 kg/cm2, water-cooled high pressure up to 20 kg/cm2, compressor is protected by high voltage switch tripping, compressor shut down, cooling adverse pressure overload and display the fault code or instructions, please check whether the cooling tower circulating water at this time is normal, Whether the cooling water temperature is too high, whether the cooling tower fan pump is running, whether the cooling water valve is fully opened (for air cooled type, please check whether the radiator is dirty and blocked), press the reset button after the above is normal, or shut down and restart to normal operation. If high voltage overload often occurs, please arrange cleaning of the condenser as soon as possible.

Screw chiller unit by the evaporator out of the state of the gas refrigerant, after the compressor adiabatic compression, into high temperature and high pressure state. The compressed gas refrigerant is cooled and condensed at isobaric pressure in the condenser. After condensation, it changes into liquid refrigerant, and then expands to low pressure through the throttle valve, turning into gas-liquid mixture. The liquid refrigerant under low temperature and low pressure absorbs the heat of the cooled substance in the evaporator and becomes a gaseous refrigerant again. The gaseous refrigerant is re-piped into the compressor to start a new cycle. These are the four stages of the freezing cycle and the main working principle of the screw chiller.