Air cooled screw chiller

Air cooled screw chillerThe selection should be based on the cooling load and usage. For refrigeration systems that operate under low load conditions for a long time, it is advisable to use multi head piston compressor units or screw compressor units for easy adjustment and energy saving. When selecting chiller units, priority should be given to units with higher performance coefficient values.

According to data statistics, the operating time of a general chiller unit at 100% load throughout the year accounts for less than 1/4 of the total operating time. The proportion of operating time at 100%, 75%, 50%, and 25% load within the total operating time is approximately 2.3%, 41.5%, 46.1%, and 10.1%. Therefore, when selecting chillers, priority should be given to models with relatively flat efficiency curves. At the same time, the adjustment range of the load of the chiller unit should be considered when designing and selecting. The multi head screw chiller unit has excellent partial load performance and can be selected according to actual conditions.

Air cooled screw chillerDue to its key component - the compressor - using a screw type, it is named a screw type chiller, and the gas refrigerant from the evaporator of the unit is in the state of; After adiabatic compression by the compressor, it becomes a high temperature and high pressure state. The compressed gas refrigerant is cooled and condensed under equal pressure in the condenser, and then transformed into liquid refrigerant after condensation. It is then expanded to low pressure through a throttle valve and becomes a gas-liquid mixture. The liquid refrigerant under low temperature and pressure absorbs the heat of the cooled substance in the evaporator and transforms back into a gaseous refrigerant. The gaseous refrigerant enters the compressor again through the pipeline and starts a new cycle. These are the four processes of the refrigeration cycle and the main working principle of screw chillers.

Screw chiller is a refrigeration equipment driven by a screw compressor, mainly used for cooling needs in industrial or commercial places. Its working principle is based on the refrigeration cycle, and the specific steps are as follows:

1. Compression process: The screw compressor compresses low-temperature and low-pressure gaseous refrigerant into high-temperature and high-pressure gaseous refrigerant through two interlocked screw rotors.

2. Condensation process: High temperature and high pressure gaseous refrigerant enters the condenser and condenses into high-pressure liquid refrigerant through heat exchange with cooling water or air.

3. Expansion process: High pressure liquid refrigerant is throttled and depressurized through an expansion valve, becoming a low-temperature and low-pressure liquid refrigerant.

4. Evaporation process: Low temperature and low-pressure liquid refrigerant enters the evaporator, absorbs the heat of chilled water, and evaporates into low-temperature and low-pressure gaseous refrigerant, completing the refrigeration cycle. Screw chillers have the characteristics of high efficiency, stability, and low noise, and are widely used in industries such as plastics, electronics, chemicals, and electroplating. We currently have this type of product in our store. Our screw chiller has the advantages of efficient cooling, stable operation, and low noise. Please feel free to contact us for more information.