When the screw chiller has poor heat dissipation, the efficiency of the compressor decreases and the operating current increases; When the air-cooled high-pressure working pressure rises to 24 kg/cm and the water-cooled high-pressure working pressure rises to 20 kg/cm, the compressor is maintained through a high-voltage circuit breaker and stops running. The high-pressure load with poor heat dissipation displays common fault codes or common fault markings. At the same time, the screw chiller checks whether the cooling circulating water of the fiberglass cooling tower is normal, whether the cooling temperature is too high, whether the centrifugal pump of the cooling tower fan is normal, whether the gate valve of the cooling circulating water is open (for air cooling, please check if the heat pipe radiator is dirty or blocked), and then press the calibration button or restart the screw chiller to see if it is normal.

If the screw chiller frequently experiences high pressure loads, please allocate a cleaning cooler as soon as possible.

The gas refrigerant used by the screw chiller generator set when outputting from the air conditioning evaporator changes to a high-pressure state after the compressor contracts and insulates. The reduced steam refrigerant, in the cooler, waits for cooling doubts, and the cooling doubts become liquid refrigerant. It expands to the bottom pressure through the relief valve and becomes a steam compound. The liquid refrigerant of the screw chiller is digested and absorbed by the heat value of the chemical refrigerant in the evaporator of the air conditioner at low temperatures, and then converted into liquid refrigerant. The economic pipeline of gaseous refrigerant enters the compressor again, gradually forming a new cycle. This article introduces the four complete processes of cooling cycle and the key principles of screw chillers.

1. The compressor is selected from a well-known brand, with a new type of efficiency extrusion, which improves the efficiency of ordinary compressors by 20% -30%, and has obtained multiple certifications in Europe and America.

2. The screw chiller has a high efficiency and a 5:6 asymmetric encryption motor rotor tooth profile.

3. The volume control of screw chillers can be selected from four stage or three-stage and stepless automatic control systems.

4. The combination design scheme of 11 rolling bearings and A-type radial torque balance shaft sleeve is selected for the screw chiller, which greatly improves the service life of the rolling bearings by 2.5-3.5 times.

5. The screw chiller adopts a special groove design scheme of silicon steel sheet with high efficiency, and is equipped with an internal and external omnidirectional cooling flow scheme, so that the compressor motor can achieve efficiency under various loads.