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Compressor and refrigeration circulation apparatus

A compressor and refrigerant technology, applied in the field of compressor refrigeration, can solve the problems of low volume and mechanical efficiency of carbon dioxide compressors, and achieve the effects of reducing leakage, improving volumetric efficiency, and reducing power consumption

Pending Publication Date: 2018-11-23
ZHUHAI GREE REFRIGERATION TECH CENT OF ENERGY SAVING & ENVIRONMENTAL PROTECTION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The first object of the present invention is to provide a compressor to solve the problem of low volume and mechanical efficiency of existing carbon dioxide compressors

Method used

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  • Compressor and refrigeration circulation apparatus
  • Compressor and refrigeration circulation apparatus
  • Compressor and refrigeration circulation apparatus

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] combined with figure 1 , this embodiment provides a compressor, the compressor of this embodiment includes: a casing 1 , a drive assembly 5 installed in the casing 1 , a compression assembly 6 , an expansion assembly 10 , and an expansion recovery assembly 11 . Wherein, the housing 1 is composed of an upper cover 2, a shell body 3 and a lower cover 4; the compression assembly 6 is drivingly connected with the drive assembly 5, and is used to perform at least three-stage compression processing on the refrigerant under the drive of the drive assembly 5; The expansion assembly 10 is connected with the drive assembly 5, and the expansion assembly 10 is used to expand the refrigerant compressed by the compression assembly 6; the expansion recovery assembly 11 recovers the expanded refrigerant and lowers the temperature and pressure of the refrigerant After that, it is delivered to the compression assembly 6.

[0050] The compressor provided in this embodiment adopts multi-s...

Embodiment 2

[0076] combined with figure 2 As shown, the difference between this embodiment and Embodiment 1 is only the change of the positional relationship between the primary compression structure 7, the secondary compression structure 8 and the tertiary compression structure 9, which sets the tertiary compression structure 9 in the primary compression structure 7 and the secondary compression structure 8, and it can be seen from the diagram that the position of the primary compression structure 7 remains unchanged, and is located at the bottom of the three, and the positions of the secondary compression structure 8 and the tertiary compression structure 9 are mutually Change.

Embodiment 3

[0078] combined with image 3 As shown, the difference between this embodiment and Embodiment 1 is only the change of the positional relationship between the primary compression structure 7, the secondary compression structure 8 and the tertiary compression structure 9, which combines the primary compression structure 7 and the secondary compression structure 8 The positions of the three-stage compression structure 9, one-stage compression structure 7 and two-stage compression structure 8 are arranged sequentially from top to bottom.

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Abstract

The invention provides a compressor and a refrigeration circulation apparatus. The compressor comprises a shell, a driving assembly arranged in the shell, a compression assembly arranged in the shell,an expansion assembly arranged in the shell, and an expansion recycling assembly, wherein the expansion recycling assembly recycles a refrigeration agent which is processed in an expanding manner, and the refrigeration agent is cooled and decompressed and then sent into the compression assembly. By adopting a multilevel compression technology, compared with a single-level and two-level compression structures, the pressure ratio and pressure difference of each level are smaller, the leakage is reduced, and the volume efficiency of the compressor is increased; and meanwhile, by combining the expansion recycling technology, the compressed refrigeration agent is expanded by virtue of the expansion assembly, and the compression assembly is driven by the driving assembly utilizing the power produced by the expansion of the refrigeration agent, so that the power consumption of the compressor can be reduced.

Description

technical field [0001] The invention relates to the technical field of compressor refrigeration, in particular to a compressor and a refrigeration cycle device. Background technique [0002] At present, in the refrigeration industry, the commonly used refrigerants are mainly CFC and HCFC. However, CFC and HCFC refrigerants have a destructive effect on the ozone layer and a greenhouse effect. In recent years, people in the industry have carried out research work on replacing refrigerants CFC and HCFC; among them, carbon dioxide has the advantages of ODP=0, GWP=1, does not destroy the ozone layer, does not pollute the environment, has abundant sources, is cheap, and has excellent heat transfer performance. Therefore, it has attracted attention as a possible substitute for refrigerants. Compared with CFC and HCFC, carbon dioxide has a lower critical temperature (31.1°C) and a higher critical pressure (7.37MPa). When it is used as a refrigerant, the main form is a transcritica...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04C23/00F04C29/00
CPCF04C23/001F04C29/0085
Inventor 胡余生魏会军邹鹏杨欧翔吴健
Owner ZHUHAI GREE REFRIGERATION TECH CENT OF ENERGY SAVING & ENVIRONMENTAL PROTECTION