Comprehensive method for removing non-condensable gas dissolved in refrigerant

A refrigerant, comprehensive method technology, applied in the direction of liquid degassing, liquid degassing by vibration, liquid degassing by filtering, etc., can solve the problems of damage to the air conditioning system, increase of condensation pressure, increase of energy consumption, etc., to improve utilization efficiency Effect

Pending Publication Date: 2022-04-22
HONGMENG TECH ZHEJIANG CO LTD
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Problems solved by technology

[0002] Circulating working medium in the phase change refrigeration process—refrigerant will inevitably have some non-condensable gas dissolved into the refrigerant working medium in the process of production and storage. The so-called non-condensable gas here refers to the relative Under the pressure and temperature conditions corresponding to the storage and use process, the gas cannot be liquefied by compression and cooling; the main components and proportions of non-condensable gases are basically close to those in the air, and the high...

Method used

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  • Comprehensive method for removing non-condensable gas dissolved in refrigerant
  • Comprehensive method for removing non-condensable gas dissolved in refrigerant
  • Comprehensive method for removing non-condensable gas dissolved in refrigerant

Examples

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Effect test

Embodiment 3

[0078] Taking R134a (800 liter volume steel cylinder, 1000 kg) produced by Zhejiang Quzhou Juhua Group as the target test object, first use the sampling bottle to take the liquid phase refrigerant, and then use the GC126N gas chromatograph of Shanghai Yidian Analytical Instrument Co., Ltd. GB / T33063-2016 "Fluoroolefin Noncondensable Gases for Refrigerants

[0079] (NCG) General Method for Determination of Thermal Conductivity (TCD) detection;

[0080] The initial values ​​are as follows: (only the main non-condensable gases N2 and O2 are listed)

[0081] Detection index item N2 O2 Detection value % (V / V) 1.1702 0.4211

[0082] Then use the WKT-A6 automatic Karl Fischer trace moisture analyzer produced by Taizhou Ketuo Instrument Equipment Co., Ltd. according to GB / T7376-2008 "Determination of trace moisture in industrial fluorinated alkanes Karl Fischer method" Water content detection;

[0083] The initial values ​​are as follows:

[0084] De...

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Abstract

The invention discloses a comprehensive method for removing non-condensable gas dissolved in a refrigerant, and relates to the technical field of refrigerant production and processing methods, in particular to the comprehensive method for removing the non-condensable gas dissolved in the refrigerant, and the method for removing the non-condensable gas in the refrigerant is divided into four independent methods and two combined methods. The method I specifically comprises the following steps: heating at constant pressure; the second method comprises the steps of degassing and membrane filtration; the third method comprises the following steps: ultrasonic degassing; a fourth method: molecular sieve adsorption; wherein the combination of the first method and the second method and the combination of the first method, the second method and the third method can also be used for removing the non-condensable gas. According to the comprehensive method, in the transferring and sub-packaging process of transferring and sub-packaging the refrigerant into another container, constant-pressure heating, degassing membrane filtration, ultrasonic degassing and molecular sieve adsorption methods are combined to remove non-condensable gas dissolved in the refrigerant.

Description

technical field [0001] The invention relates to the technical field of refrigerant production and processing methods, in particular to a comprehensive method for removing non-condensable gases dissolved in refrigerant. Background technique [0002] Circulating working medium in the phase change refrigeration process—refrigerant will inevitably have some non-condensable gas dissolved into the refrigerant working medium in the process of production and storage. The so-called non-condensable gas here refers to the relative Under the pressure and temperature conditions corresponding to the storage and use process, the gas cannot be liquefied by compression and cooling; the main components and proportions of non-condensable gases are basically close to those in the air, and the highest content is nitrogen and oxygen. Some inert gases and carbon dioxide, etc., these non-condensable gases dissolved in the refrigerant will be injected together with the refrigerant into the air-condi...

Claims

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Application Information

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IPC IPC(8): B01D19/00B01D5/00
CPCB01D19/0073B01D19/0031B01D19/0078B01D5/0006
Inventor 徐旭光
Owner HONGMENG TECH ZHEJIANG CO LTD
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