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Rotary double-stage compressor

A two-stage compressor, rotary technology, applied in the field of compressors, can solve the problem of small cylinder diameter two-stage compressors with small displacement, achieve the effect of improving compression capacity and compression displacement, and broadening the application range

Inactive Publication Date: 2014-12-31
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

[0006] The purpose of the present invention is to provide a rotary two-stage compressor to solve the technical problem of the existing small-bore two-stage compressor with small displacement

Method used

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Embodiment approach

[0034] figure 1 , shows the specific structure of the rotary two-stage compressor of the present invention, including a shell surrounded by the upper cover assembly 1, the shell main body 17 and the lower cover 18 for accommodating the pump body, the pump body is fixed on the shell main body 17, and the motor The stator 3 is fixed to the main body of the casing, the rotor 4 drives the pump body through the crankshaft 5, the middle partition plate 9 isolates the high-pressure compression part and the low-pressure compression part stacked on the crankshaft 5 in sequence, and the upper flange 6 and the lower flange 16 are respectively set At both ends of the high-pressure compression section and the low-pressure compression section, the low-pressure compression section includes a first compression section composed of a first cylinder 14 and a first roller 15 and a second compression section composed of a second cylinder 10 and a second roller 11. part, the low-pressure partition ...

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Abstract

The invention provides a rotary double-stage compressor, including a for shell accommodating a pump body; the pump body comprises a high pressure compression part and a low pressure compression part, which are sequentially stacked; the low pressure compression part comprises a first compression part and a second compression part; a low pressure separator plate assembly isolates the first and the second compression part; a cavity is formed on the low pressure separator plate assembly; the first compression part is provided with a first air suction port and a first exhaust port; the second compression part is provided with a second air suction port and a second exhaust port; the first exhaust port and the second exhaust port are respectively connected with the cavity; the high pressure compression part is provided with a high pressure air suction port communicated with the cavity; because the first compression part and second part both conduct low pressure compression, the exhaust volume of low pressure compression part is increased, the high pressure compression part has saturated suction; and compressor has higher displacement than a double-stage compressor with the same diameter.

Description

technical field [0001] The invention relates to the field of compressors, more specifically, to a rotary two-stage compressor. Background technique [0002] Existing rolling rotor type two-stage compressors are generally two-cylinder two-stage compressors. First, the displacement of the two-stage compressors is smaller than that of the two-cylinder single-stage compressors. Second, the balance of rotation is not as good as that of the two-cylinder single-stage compressors. However, there is a big gap between the energy efficiency and heating capacity of the single-stage compressor compared with the two-stage compressor, and the displacement of the two-cylinder two-stage compressor is enlarged. [0003] At present, the displacement of the two-stage compressor is generally expanded by enlarging the diameter of the compressor, which will lead to an increase in the cost of the compressor itself and the manufacturing cost of the air conditioner. In order to expand the displaceme...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04C23/00F04C29/00
Inventor 黄辉胡余生魏会军吴健巫华龙杨欧祥
Owner ZHUHAI GREE REFRIGERATION TECH CENT OF ENERGY SAVING & ENVIRONMENTAL PROTECTION
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