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centrifugal compressor

A centrifugal compressor and compressor technology, applied in mechanical equipment, electromechanical devices, control of mechanical energy, etc., can solve problems such as adverse effects of space, mixed impurities, etc., to achieve the effect of reducing the possibility

Active Publication Date: 2021-04-30
IHI CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the other hand, foreign matter such as impurities may be mixed in the gas sucked by the centrifugal compressor.
In the case where a part of the gas utilized for some purpose contains impurities that may adversely affect the part (part, space, etc.) to which the part of the gas is supplied

Method used

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  • centrifugal compressor
  • centrifugal compressor
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Examples

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Embodiment Construction

[0016] A centrifugal compressor according to one aspect of the present disclosure includes: a rotating shaft provided in a casing and having a rotating axis; a compressor impeller housed in the casing and mounted on one end of the rotating shaft; a first wall surface and a second wall surface, They are formed in the housing, respectively extending in the radial direction and the circumferential direction of the rotation axis, and facing each other in the direction of the rotation axis; a diffuser, which is formed between the first wall surface and the second wall surface around the compressor impeller , and extend radially and circumferentially; the scroll member, which is a scroll member connected to the diffuser, makes the first wall surface between the diffuser and the scroll member; the wall portion, which includes the second wall surface, and will The diffuser is separated from the space in the housing where the rotating shaft extends, at least one air extraction hole for ...

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Abstract

The centrifugal compressor has: a rotating shaft; a compressor impeller mounted on one end of the rotating shaft; a first wall surface and a second wall surface formed in a casing to face each other in the direction of the rotating axis; A periphery of the impeller is formed between the first wall surface and the second wall surface; and a wall section partitions the diffuser from a space inside the casing in which the rotation shaft extends. An air extraction hole is formed on the wall, and the air extraction hole is at least one air extraction hole for extracting gas from the diffuser, and connects the diffuser with the space.

Description

technical field [0001] The present disclosure relates to centrifugal compressors. Background technique [0002] As a technique related to a centrifugal compressor, techniques described in Patent Documents 1 to 3 are known. Patent Document 1 describes a configuration in which a part of gas compressed by the centrifugal compressor is supplied to the gas bearing in a centrifugal compressor including a gas bearing. Patent Document 2 describes a structure in which a circulation flow path is formed to return a part of the fluid flowing to the diffuser of the centrifugal compressor from the downstream side area of ​​the diffuser to the upstream side area, and the fluid flowing in the circulation flow path is absorbed. The cooling unit cools down. Patent Document 3 describes a structure in which a part of the airflow for ventilating the turbine is guided to the downstream side of the impeller of the centrifugal compressor, thereby cooling the downstream side of the impeller. [0...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04D29/44F04D29/58H02K5/10
CPCH02K7/14H02K9/06F04D25/06F04D25/04F05D2220/40F04D29/5806F04D29/5826F04D29/057F05D2250/52Y02E60/50H02K5/207F04D17/10F04D25/082F04D29/441F04D29/584F05B2220/40F05B2240/12F05B2240/53F05B2260/20H01M8/04111
Inventor 迫田晃司池谷信之金子薰泽近尚海
Owner IHI CORP