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Screw-type water chiller refrigeration system ice blockage reason analysis
Release time:2016-11-02 14:58:43
Screw-type water chiller refrigeration system ice jam causes:
Common screw chillers mostly air cooled screw chiller and water cooled screw chillers in two, and screw chiller produced "ice block" refers to the thermal expansion valve device, moisture formation of ice jams.
Refrigerant for freon-chiller refrigeration cycle, because CFCs are mutually dissolvedwith water, water containing freon through the thermostatic expansion valve, separates the water free from freon, low temperature ice blockage of pipes and valves. Theother hand, freon in the case of water, chemical stability, easy to produce acid, corrosion of screw chiller pipes and inner surface. Therefore, the freon refrigeration system, expressed as a mass fraction of moisture content shall not exceed 0.0025%.
Screw type chiller water flow of freon refrigeration system from the following situations:
1, the system after installation, does not exhaust the air and water;
2, repair and filled with fluorine into the air;
Part 3, low-voltage leakage, when the pressure is lower than the local atmospheric pressure into the air;
4, freon itself is pure, contain water and other factors.
Therefore, in screw chiller refrigeration system charging before the refrigerant must be fully dry, dry filter installed in the freon refrigeration system. Dry filters installed on your system, because of the long running time, absorb water of poor efficacy shall be replaced immediately. Dong Yue Jin chiller chiller plant, factory-filled well beforethe refrigerant and lubricating oil. If it is a failure in the unit run, you need to chargerefrigerant recommended contact process chiller manufacturers to ensure safe and reliable operation of the unit.