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Why Use Flooded Type Screw Type Chiller?

Jan. 05, 2021

Screw chiller principle

Screw chillers are named screw chillers because the key component - the compressor is a screw type, the unit is made from the evaporator out of the state of the gas refrigerant; by the compressor after adiabatic compression, into a high temperature and high-pressure state. The compressed gas refrigerant, in the condenser, isobaric cooling condensation, after condensation changes into liquid refrigerant, and then through the throttle valve expansion to low pressure, into a gas-liquid mixture. The liquid refrigerant in low temperature and low pressure, in the evaporator, absorbs the heat of the cooled material and becomes gaseous refrigerant again. The gaseous refrigerant re-enters the compressor through the pipeline and starts a new cycle. These are the four processes of the refrigeration cycle, which is also the main working principle of the screw chiller.

Flooded Type Screw Type Chiller

Flooded Type Screw Type Chiller

The flooded type screw type chiller adopts efficient semi-closed screw compressor. the compressor adopts a 5:6 asymmetric high-efficiency screw rotor, which is graded or steplessly energy regulated. It is automatically adjusted according to load changes and is more energy-efficient. The unit heat exchanger adopts high-efficiency heat exchange tube to improve the refrigeration efficiency, and the unit is equipped with multiple protections to make the unit operate safely and reliably. Min. outlet temperature can be -60℃.

Features of chiller

1. The unit adopts a semi-closed screw compressor. The compressor adopts a 5:6 asymmetric high-efficiency screw rotor, which is graded or steplessly energy regulated. It is automatically adjusted according to load changes and is more energy-efficient.

2. The unit heat exchanger adopts high-efficiency heat exchange tube to improve the cooling efficiency. At the same time, in order to reduce the lubricating oil entering the heat exchanger, the unit increases the secondary oil content, minimizes the amount of oil entering the heat exchanger, and passes the specially designed ejector. The oil return device directs the lubricating oil in the heat exchanger back to the compressor to improve the refrigeration efficiency of the unit and also improve the reliability of the unit operation.

3. The unit is equipped with multiple protections to make the unit operate safely and reliably. The unit adopts direct cooling mode, which reduces the loss caused by the intermediate heat exchange and greatly reduces the running cost. 

4. Environmentally friendly 134a refrigerant is used to improve unit operating efficiency. The unit is equipped with multiple protections to make the unit safe and reliable.

If you want to get more information about flooded type screw type chiller price, please contact us.


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