A framework system and method for preparing low-temperature refrigerant
A refrigerant and low temperature technology, which is applied in the field of framework systems for preparing low temperature refrigerants, can solve the problems of inability to produce refrigerants and restrictions, and achieve the effect of reducing consumption and saving energy.
Active Publication Date: 2015-12-02
CHINA PETROCHEMICAL CORP +1
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Problems solved by technology
However, absorption refrigerators cannot produce refrigerants with a temperature lower than 5°C, so they are limited.
Method used
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Embodiment
[0066] Such as figure 1 As shown, a frame system for preparing low-temperature refrigerant.
[0067] Including: refrigerant storage and feeding unit 1, absorption refrigeration unit 2, compression refrigeration unit 3 and temperature equalization unit 4;
[0068] After the refrigerant storage and feeding unit 1 is connected to the parallel absorption refrigeration unit 2 and the compression refrigeration unit 3, it is connected to the temperature equalization unit 4; the outlet pipeline of the temperature uniformity unit 4 is divided into two branches: 4a and 4b, and the pipeline 4a is connected to the refrigerant user 5 , the pipeline 4b is combined with the outlet pipeline of the refrigerant user 5 and then connected to the refrigerant storage and feeding unit 1;
[0069] A regulating valve 6 is arranged on the 4b pipeline.
[0070] The input pipelines of the absorption refrigeration unit 2 and the compression refrigeration unit 3 communicate with the refrigerant pump outl...
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The invention discloses a frame system and method for preparing low-temperature refrigerant. The frame system includes: refrigerant storage and feeding unit, absorption refrigeration unit, compression refrigeration unit and temperature equalization unit; after the refrigerant storage and feeding unit is connected to the parallel absorption refrigeration unit and compression refrigeration unit, it is connected to the temperature uniformity unit; The unit outlet pipeline is divided into two branches: 4a and 4b. The pipeline 4a is connected to the refrigerant user, and the pipeline 4b is combined with the refrigerant user outlet pipeline to connect to the refrigerant storage and feeding unit; the 4b pipeline is provided with a regulating valve. The method comprises: the refrigerant is pressurized and divided into two parts, enters into an absorption refrigeration unit and a compression refrigeration unit for refrigeration respectively, and then enters a thermostat for mixing and uniform temperature to obtain a low-temperature refrigerant. The present invention can use industrial hot water, steam condensate, underground hot water, solar energy, and waste heat of process logistics to produce low-temperature refrigerant with a temperature range of -26°C to 8°C, so as to save energy and reduce power consumption.
Description
technical field [0001] The invention relates to the field of refrigeration, and more specifically, to a framework system and method for preparing low-temperature refrigerant. Background technique [0002] As we all know, the production of industrial production and large-scale civil building refrigeration mainly adopts the method of "phase change refrigeration". This method includes two refrigeration methods (principles), which are briefly described as follows: [0003] (1) Compression refrigerators manufactured according to the principle of vapor compression refrigeration [0004] The power of the compression refrigerator comes from electric energy, and the refrigeration temperature range is wide, from slightly lower than the ambient temperature to -150°C. Compression refrigerators have a large range of stand-alone capacity and many specifications; the stand-alone cooling capacity of compression refrigerators ranges from a minimum of about 100W to thousands of kW. [0005...
Claims
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IPC IPC(8): F25B25/02F25B41/04F25B41/20
Inventor 曾齐家张建华安淑英薛东胜刘忠亮郭雪华
Owner CHINA PETROCHEMICAL CORP