A carbon dioxide refrigeration device structure

A carbon dioxide and refrigeration device technology, applied in household refrigeration devices, refrigerators, refrigeration components, etc., can solve the problem that carbon dioxide refrigerant cannot be liquefied, and achieve the effect of small application range, improved efficiency, and protection of system safety

Active Publication Date: 2019-10-01
JINGKELUN REFRIGERATION EQUIP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] Because the present invention adopts the above technical scheme, the condenser is installed underground, utilizing the characteristics that the underground normal temperature is not higher than the critical temperature of carbon dioxide liquefaction (31.1 degrees Celsius), and the heat of the condenser is conducted below the ground, which not only solves the problem that the condenser is more than carbon dioxide The critical temperature of liquefaction (31.1 degrees Celsius) will cause the problem that the carbon dioxide refrigerant cannot be liquefied, and the efficiency is greatly improved

Method used

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  • A carbon dioxide refrigeration device structure
  • A carbon dioxide refrigeration device structure
  • A carbon dioxide refrigeration device structure

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Embodiment Construction

[0025] like figure 1 As shown, the general refrigeration device that uses carbon dioxide as the refrigerant generally adopts a cascade system refrigeration device structure, using ammonia (R717) or Freon as the refrigerant, and connecting the ammonia (R717) or Freon compressor through pipelines 1. Condenser 2. Throttle valve 3 and evaporator 4 form a high-temperature stage system; carbon dioxide is used as a refrigerant, and carbon dioxide compressor 5, condenser 6, throttle valve 7, and evaporator 8 are connected through pipelines to form a low-temperature stage system. Use the evaporator 4 of the high-temperature stage to cool down the condenser 6 that uses carbon dioxide as the refrigerant in the low-temperature stage to ensure that the carbon dioxide refrigerant operates at the critical temperature, and then pass through the evaporator 8 installed in the cold storage 9 as the refrigerant Cold storage 9 is refrigerated.

[0026] like figure 2 As shown, the carbon dioxide...

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Abstract

The invention relates to a structure of a carbon dioxide refrigeration device, which is composed of a carbon dioxide compressor, an evaporator, a throttle valve and a condenser. One end is connected to the evaporator, the other end of the evaporator is connected to the air inlet of the carbon dioxide compressor, the evaporator is installed in the cold storage body, and the condenser is installed underground. The invention improves the structure of a common carbon dioxide refrigeration device, can use a single refrigerant carbon dioxide, and has a wide application range, safety and controllability, high efficiency and energy saving carbon dioxide refrigeration device structure.

Description

Technical field: [0001] The invention relates to a refrigeration device structure, in particular to a refrigeration device structure using carbon dioxide as a refrigerant. Background technique: [0002] Due to the low critical temperature of carbon dioxide (31.1°C), refrigeration units designed to use carbon dioxide as a refrigerant at room temperature generally adopt a cascade structure, that is, a set of refrigeration systems with other refrigerants are used as condensers for refrigeration units with carbon dioxide as a refrigerant , the high-temperature grade uses ammonia (R717) or Freon as the refrigerant, the low-temperature grade uses carbon dioxide as the refrigerant, and the high-temperature grade ammonia (R717) or Freon evaporator is used to cool down the low-temperature carbon dioxide condenser. This conventional structure not only requires the use of two or more refrigerants, complex structure, high failure rate, small application range (only applicable to low-tem...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F25B9/00F25B41/04F25B41/06F25D19/00F25D13/00A62C3/00F25B41/20F25B41/31
Inventor 杨建国康建慧马越峰毛同芹李建林
Owner JINGKELUN REFRIGERATION EQUIP CO LTD
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