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Mixed refrigerant, refrigeration system and refrigeration device

A mixed refrigerant and refrigeration system technology, applied in refrigeration systems, refrigeration devices, and mixed refrigerant fields, can solve the problem of poor circulation performance of non-azeotropic mixed refrigerants, inability to meet usage requirements well, and low flame retardant and explosion suppression efficiency. and other problems, to achieve the effect of non-flammable safety level, excellent cooling effect, and efficiency improvement

Active Publication Date: 2022-01-11
冰山松洋生物科技(大连)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the zeotropic mixed refrigerant under the above composition ratio has poor cycle performance and low flame retardancy and explosion suppression efficiency.
In addition, the existing mixed refrigerants have high costs and complicated processes, which cannot well meet the needs of use

Method used

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  • Mixed refrigerant, refrigeration system and refrigeration device
  • Mixed refrigerant, refrigeration system and refrigeration device
  • Mixed refrigerant, refrigeration system and refrigeration device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-6 and comparative example 1

[0045] In order to verify the effect of the mixed refrigerant, the present invention provides Examples 1-3 and Comparative Example 1, and the refrigerant composition of each embodiment and Comparative Example is specifically shown in Table 1.

[0046] In Examples 1-6 and Comparative Example 1, a 700L vertical refrigerator is used as the experimental object, and the refrigerator is provided with two sets of independent self-cascading refrigeration systems, each of which is filled with the same weight of mixed refrigerant . Each self-cascading refrigeration system adopts the same structure, specifically as figure 1 As shown, the self-cascading refrigeration system includes: compressor 1, condenser combination 2, auxiliary condenser 2a, main condenser 2b, frame pipe 3, compressor oil cooling pipe 4, dry filter 5, flow divider 6. Capillary 7, heat exchanger I8, heat exchanger I inner tube 8a, heat exchanger I outer tube 8b, heat exchanger II9, heat exchanger II inner tube 9a, hea...

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Abstract

The present invention provides a mixed refrigerant, a refrigeration system and a refrigeration device; the mixed refrigerant includes: R134a, R600, R23 and R14; wherein, the sum of the weights of R134a and R600 accounts for the total weight of the mixed refrigerant. 40% to 80%, wherein the weight of R134a accounts for 55% to 95% of the sum of the weight of R134a and R600. The weight of R23 accounts for 10%-30% of the total weight of the mixed refrigerant, and the weight of R14 accounts for 10%-30% of the total weight of the mixed refrigerant. The mixed refrigerant of the present invention includes R134a, R600, R23, and R14. In actual production, R134a and R600 refrigerants are mixed within this ratio, which can retard the inflammable and explosive refrigerant R600, improve the safety of the refrigeration system, and reduce the Reduce production costs, simplify process control, and improve refrigeration system reliability.

Description

technical field [0001] The invention relates to the technical field of refrigeration, in particular to a mixed refrigerant, a refrigeration system and a refrigeration device. Background technique [0002] Self-cascade refrigeration system, also known as natural cascade refrigeration system, is a way to achieve cooling in the temperature range of -40°C to -150°C. The characteristics of different boiling points of different components in the substance make the refrigerant naturally separate and achieve the effect of cascade refrigeration. [0003] There are some existing ratios and applications of zeotropic mixed refrigerants, such as zeotropic mixed refrigerants sealed with R245fa, R600, R23 or R508A or R508B or R116, R14 in the refrigeration system, wherein the weight ratio range of refrigerants is Specifically, the total weight of R245fa and R600 accounts for 40%-80%; the weight of R23 or R508A or R508B or R116 accounts for 15%-47%; and the weight of R14 accounts for 3%-20...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K5/04F25B7/00
CPCC09K5/045F25B7/00C09K2205/34C09K2205/128C09K2205/12
Inventor 苏嵋华刘发柱庞皓文王福滋孙晓雪
Owner 冰山松洋生物科技(大连)有限公司