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Multistage compressor, electric appliance and control method

A technology for compressors and liquid separators, which is applied in the field of compressors and can solve problems such as refrigerated oil being sucked into cylinders

Active Publication Date: 2021-01-15
ZHUHAI GREE REFRIGERATION TECH CENT OF ENERGY SAVING & ENVIRONMENTAL PROTECTION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In order to solve the technical problem of the refrigerated oil being sucked into the cylinder in the multi-stage compressor in the prior art, the application provides a multi-stage compressor, an electrical appliance and a control method

Method used

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  • Multistage compressor, electric appliance and control method
  • Multistage compressor, electric appliance and control method
  • Multistage compressor, electric appliance and control method

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Embodiment Construction

[0033] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of this application, but not all of them. Based on the embodiments in the present application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present application.

[0034] figure 1 It is a schematic diagram of the overall structure of the two-stage enthalpy-increasing compressor of embodiment 1; the overall structure of the two-stage enthalpy-increasing compressor is as follows figure 1 As shown, the low-temperature and low-pressure refrigerant enters the lower cylinder (low-pressure cylinder) 12 ...

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Abstract

The invention provides a multistage compressor, an electric appliance and a control method, relates to the compressor technology. The compressor comprises a low-pressure cylinder and a high-pressure cylinder, and a shell of the compressor comprises a back pressure cavity and further comprises a first liquid distributor and a second liquid distributor, an air inlet pipe of the compressor is communicated to the air inlet end of the low-pressure cylinder through the first liquid distributor; the second liquid distributor comprises a first cavity and a second cavity, the first cavity is communicated with the back pressure cavity, the air inlet end of the high-pressure cylinder is communicated to the first cavity, an oil return hole is formed in the bottom of the first cavity, and refrigeratingoil in the first cavity is introduced into the second cavity through the oil return hole; and an air supplementing pipe of the compressor is communicated to the back pressure cavity through the second cavity. The second liquid distributor is divided into the two cavities up and down, a gasoline separation function is added before air suction of the high-pressure cylinder, oil carried by air suction of the high-pressure cylinder is reduced, oil pressing of the air cylinder is avoided, and the reliability of the compressor is improved.

Description

technical field [0001] The present application relates to compressor technology, in particular to a multi-stage compressor, an electrical appliance and a control method. Background technique [0002] A multi-stage compressor refers to a compressor that gradually increases the gas pressure in stages, generally including a low-pressure cylinder and a high-pressure cylinder, or one or more intermediate-stage pressure cylinders can also be configured. Among them, the two-stage enthalpy-increasing frequency conversion compressor occupies an increasingly important position in the fields of air conditioners, heat pump water heaters, refrigeration and other fields due to its high efficiency in low temperature conditions. [0003] The structural characteristics of the conventional two-stage enthalpy-increasing compressor can be summarized as follows: the exhaust gas of the high-pressure stage is connected to the shell, and the shell has high back pressure; the cylinder of the high-pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25B1/10F25B31/00F25B43/02F25B49/02F04B49/06
CPCF25B1/10F25B31/004F25B43/02F25B49/022F04B49/06F25B2400/077Y02B40/00
Inventor 魏会军黄秦阙沛祯胡艳军董辉向柳
Owner ZHUHAI GREE REFRIGERATION TECH CENT OF ENERGY SAVING & ENVIRONMENTAL PROTECTION
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