An energy-saving and environment-friendly mixed refrigerant with a temperature application range of -17°C to -42°C
A mixed refrigerant technology with a wide range of applications. It is applied in the field of heat pumps and refrigeration. It can solve the problems of increased cost of refrigeration equipment, poor environmental protection performance, and waste of resources, and achieve the effects of reducing irreversible losses in heat transfer, improving efficiency, and reducing renovation costs.
A mixed refrigerant technology with a wide range of applications. It is applied in the field of heat pumps and refrigeration. It can solve the problems of increased cost of refrigeration equipment, poor environmental protection performance, and waste of resources, and achieve the effects of reducing irreversible losses in heat transfer, improving efficiency, and reducing renovation costs.
CN111019610BActive Publication Date: 2021-05-04SHIHEZI UNIVERSITY
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[0023] The present invention will be specifically introduced below in conjunction with the accompanying drawings and specific embodiments.
[0024] The mixed refrigerant provided by the invention uses octafluoropropane (R218) and sulfur hexafluoride (R846) as raw materials, both of which have an ODP value of 0. Generally, fluorocarbons are not compatible with lubricating oils, and the amount of oil needs to be strictly adjusted when selecting them as working fluids. After we add R846 to R218, the oil solubility of R218 can be increased, which reduces the mixed refrigerant in the equipment to a certain extent. possibility of leakage.
[0025] In the present invention, the mixing ratio of R218 and R846 is selected by the experimental data analysis method, specifically:
[0026] Weigh R218 and R846, do 36 sets of experiments in the regenerative mixed working fluid throttling heat pump system with different mass ratios, and then combine the experimental data with the refrigerant ...
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The invention discloses an energy-saving and environment-friendly mixed refrigerant with a temperature application range of -17°C to -42°C. The mixed refrigerant is formed by mixing 91.83wt% of R218 and 8.17wt% of R846. The benefits of the present invention are: (1) when the mixed refrigerant is used to replace CFC, not only the heating performance of the system can be significantly improved, but also there is no need to make substantial changes to the structure of existing equipment; (2) the mixed refrigerant It is a non-azeotropic mixed refrigerant, and there is a temperature glide during the phase change process, which is conducive to improving the efficiency of the heat pump cycle and refrigeration cycle, and is very suitable for the application of variable temperature heat sources; (3) After adding R846, the R218 can be increased Oil-soluble, which reduces the possibility of the mixed refrigerant leaking in the equipment to a certain extent; (4) The ODP value of the mixed refrigerant is 0, and has no effect on the ozone layer of the atmosphere; (5) The mixed refrigerant can be used widely Used in heat pumps, air conditioners and refrigeration equipment.
Description
technical field [0001] The invention relates to a refrigerant, in particular to an energy-saving and environment-friendly mixed refrigerant with a temperature application range of -17°C to -42°C, belonging to the technical field of heat pumps and refrigeration. Background technique [0002] In the field of heat pumps and refrigeration, refrigerants are essential. With the increasing demand for air conditioners, refrigerators and other equipment, the demand for refrigerants is also growing rapidly. There are various types of refrigerants with their own characteristics, and their selection has an important impact on the environment. Both the Montreal Protocol and the Kyoto Protocol have specified the destructive effect of Freon on the ozone layer and its impact on the greenhouse effect, and have made corresponding regulations on the emissions of ozone-depleting substances (such as chlorofluorocarbons) and carbon dioxide emissions. . Internationally, more and more attention h...
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Patent Timeline
04 May 2021
Publication
CN111019610B
- IPC
- C09K5/04
- CPC
- C09K5/045; C09K5/047; C09K2205/22; C09K2205/34; Y02P20/10
- Inventors
- 李俊峰; 额热艾汗