Double-stage centrifugal air compressing device

A compressor and air intake device technology, applied in the field of compressors, can solve problems such as low boost ratio, high manufacturing cost, and complicated structure of the compressor device, and achieve the effect of reducing fuel consumption and increasing boost ratio

Active Publication Date: 2012-09-26
HUNAN HANGXIANG GAS TURBINE
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a two-stage centrifugal compressor to solve the problems of complex structure, high manufacturing cost and low boosting ratio in the prior art.

Method used

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Embodiment Construction

[0024] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention can be implemented in many different ways defined and covered by the claims.

[0025] The invention provides a two-stage centrifugal compressor. Such as figure 1 As shown, the two-stage centrifugal compressor in the present invention includes: a first-stage centrifugal compressor 100, which includes a first centrifugal impeller 110 and a first housing 120; a second-stage centrifugal compressor 200, The second-stage centrifugal compressor 200 includes a second centrifugal impeller 210 and a second housing 220; a connecting shaft 300, the first-stage centrifugal compressor 100 is fixedly connected to the connecting shaft 300, and the second-stage centrifugal compressor 200 is movable with the connecting shaft 300 Connection; reflux device 400 , the first-stage centrifugal compressor 100 is connected to the second-stage centrifu...

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Abstract

The invention provides a double-stage centrifugal air compressing device. The double-stage centrifugal air compressing device comprises a first-stage centrifugal air compressing device, a second-grade centrifugal air compressing device, a connecting shaft and a reflowing device, wherein the first-stage centrifugal air compressing device comprises a first centrifugal impeller and a first shell; the second-grade centrifugal air compressing device comprises a second centrifugal impeller and a second shell; the connecting shaft is fixedly connected with the first-stage centrifugal air compressing device; the second-grade centrifugal air compressing device is movably connected with the connecting shaft; and the first-stage centrifugal air compressing device is connected with the second-grade centrifugal air compressing device through the flowing device. According to the double-stage centrifugal air compressing device, the first-stage centrifugal air compressing device is connected with the second-grade centrifugal air compressing device through the flowing device, so that the pressurizing ratio of the air compressing device is improved and the oil consumption amount is reduced; and meanwhile, the quantity of parts of the air compressing device is reduced and the manufacturing cost of the air compressing device is reduced.

Description

technical field [0001] The invention relates to the field of compressors, and more specifically, to a two-stage centrifugal compressor. Background technique [0002] In the field of aviation or ground gas turbines, the compressors in the prior art are mainly divided into the following three categories: axial flow compressors, single-stage centrifugal compressors and hybrid compressors. [0003] The axial-flow compressor has the advantages of high boost ratio, high efficiency, large air flow per unit area and low wind resistance, and is mainly used in large and medium-sized thrust engines. The single-stage centrifugal compressor has the advantages of simple structure, reliable operation, wide stable working range and high single-stage boosting ratio, and is mainly used in small power plants and aircraft auxiliary power plants. [0004] The hybrid compressor is a combination of an axial flow compressor and a single-stage centrifugal compressor. It not only embodies the advant...

Claims

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Application Information

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IPC IPC(8): F04D17/12F04D29/28F04D29/42
Inventor 刘秀芳温泉郭小平涂孟罴张亿力李久山
Owner HUNAN HANGXIANG GAS TURBINE
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