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Three-group plate ice machine hot-gas deicing refrigeration system

A refrigeration system and hot gas technology, applied in refrigerators, refrigeration components, refrigeration and liquefaction, etc., can solve the problems of low suction pressure and low refrigeration effect of refrigeration compressors, and achieve the effect of increasing speed

Inactive Publication Date: 2010-09-01
中机西南能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In view of this, the present invention provides a three-group plate ice machine hot gas deicing refrigeration system to solve the problem of low suction pressure of the refrigeration compressor and low refrigeration effect in the existing refrigeration system

Method used

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  • Three-group plate ice machine hot-gas deicing refrigeration system
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Embodiment Construction

[0010] For the sake of reference and clarity, the reference numerals in the accompanying drawings are explained as follows;

[0011] 1. Refrigeration compressor, 2. High-efficiency oil separator, 3. Water-cooled condenser, 4. First branch pipe, 5. Economizer solenoid valve, 6. Economizer, 7. Hydraulic pressure differential solenoid valve, 8. Tail injection solenoid Valve, 9. Gas-liquid separator with heat exchange, 10. The first liquid supply solenoid valve, 11. The first thermal expansion valve, 12. The first liquid separator and capillary tube, 13. The first plate ice plate heat exchanger , 14, the first air return solenoid valve, 15, the first liquid supply solenoid valve, 16, the second thermal expansion valve, 17, the second liquid separator and capillary tube, 18, the second plate ice plate heat exchanger, 19 , the second air return solenoid valve, 20, the third liquid supply solenoid valve, 21, the third thermal expansion valve, 22, the third liquid separator and capill...

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Abstract

The embodiment of the invention discloses a three-group plate ice machine hot-gas deicing refrigeration system, which is characterized in that: a bypass solenoid valve and a KVC pressure control valve are connected in turn between a refrigerant outlet of a high-efficiency oil separator and an outlet of an air return filter in the three-group plate ice machine hot-gas deicing refrigeration system; and one end where an economizer flows to a heat exchange gas-liquid separator in the three-group plate ice machine hot-gas deicing refrigeration system is provided with a differential pressure solenoid valve which is connected in parallel with a circulating pipe. In the three-group plate ice machine hot-gas deicing refrigeration system, the bypass solenoid valve ensures that the suction pressure of a refrigeration compressor is not too low and partial hot gas deices, and the opening of the pressure control valve is adjusted according to the pressure on the rear of the pressure control valve so as to ensure that the suction pressure of the refrigeration compressor is the same as the pressure in the ice making process and ensure the stability of the refrigeration system.

Description

technical field [0001] The invention relates to the technical field of refrigeration, and more specifically relates to a three-group plate ice machine hot gas deicing refrigeration system. Background technique [0002] At present, the existing three sets of hot gas deicing refrigeration systems for plate ice machines are divided into the ice making stage and the deicing stage. After going through and deicing, it becomes a low-temperature and low-pressure refrigerant gas, and returns to the gas-liquid separator with heat exchange through the short circulation tube. The pressure of the refrigerant gas returning to the gas-liquid separator with heat exchange is very low, because the The refrigerant gas enters the refrigeration compressor from the gas-liquid separator with heat exchange for compression. Since the pressure of the refrigerant gas in the gas-liquid separator with heat exchange is very low, the suction pressure of the refrigeration compressor is too low, resulting i...

Claims

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Application Information

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IPC IPC(8): F25B5/02F25B41/04F25B49/02
Inventor 刘楷周国均
Owner 中机西南能源科技有限公司
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