Processing casing and air compressor

A technology for processing casings and slots, which is applied in the directions of machines/engines, mechanical equipment, liquid fuel engines, etc., can solve the problems of delaying the blockage of the rotor blade tip airflow separation blade channel, inappropriate installation angle of the front section, and differences, etc. To achieve the best effect of expanding the stable working range and smooth airflow structure

Inactive Publication Date: 2009-06-10
SHENYANG ENGINE DESIGN RES INST CHINA AVIATION IND CORP I
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This bypass backflow delays the separation of rotor blade tip airflow and blockage of blade slots, and expands the stable working boundary of the compressor. The slots of the existing processing casing are linear, which cannot meet the installation angle of the front and rear slots. Different Design Requirements

Method used

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  • Processing casing and air compressor
  • Processing casing and air compressor
  • Processing casing and air compressor

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0023] Example 1

[0024] This embodiment provides a processing casing and a compressor. The slots on the processing casing are non-linear and adopt a banana-shaped structure.

[0025] In the processing receiver, the slot width on the processing receiver is narrow in the front and wide in the rear or wide in the front and narrow in the rear.

[0026] For the processing casing, the slot installation angle range is: the installation angle is the inclination angle between the tangent line of the arc center line and the horizontal line; the front section installation angle range is: 0-40 degrees; the rear section installation angle range is 0-60 degrees.

[0027] A compressor including a processing casing (1), a rotor blade (2), a stator blade (3), a wheel (4), a stator inner ring (5), a shaft (6); a processing casing (1) It includes a casing (7) and a processing ring (8); one end of the stator blade (3) is connected with the inner ring (5) of the stator, the other end is connected wi...

Example Embodiment

[0028] Example 2

[0029] This embodiment provides a processing casing and a compressor. The front and rear sections of the slot on the processing casing are linear, and the middle is connected by arc segments.

[0030] In the processing receiver, the slot width on the processing receiver is narrow in the front and wide in the rear or wide in the front and narrow in the rear.

[0031] For the processing casing, the slot installation angle range is: the installation angle is a straight horizontal inclination angle; the front section installation angle range is: 0-40 degrees; the rear section installation angle range is 0-60 degrees.

[0032] A compressor including a processing casing (1), a rotor blade (2), a stator blade (3), a wheel (4), a stator inner ring (5), a shaft (6); a processing casing (1) It includes a casing (7) and a processing ring (8); one end of the stator blade (3) is connected with the inner ring (5) of the stator, the other end is connected with the casing (7), ...

Example Embodiment

[0033] Example 3

[0034] This embodiment provides a processing casing and a compressor. The front section of the slot on the processing casing adopts a linear type, and the rear section adopts an arc type.

[0035] In the processing receiver, the slot width on the processing receiver is narrow in the front and wide in the rear or wide in the front and narrow in the rear.

[0036] For the processing casing, the slot installation angle range is: when the current rear section is linear, the installation angle is a straight horizontal inclination angle, when it is non-linear, the installation angle is the inclination angle between the end tangent of the arc center line and the horizontal line; The installation angle range of the front section is: 0-40 degrees; the installation angle range of the rear section is 0-60 degrees.

[0037]A compressor comprising a processing casing (1), a rotor blade (2), a stator blade (3), a wheel (4), a stator inner ring (5), a shaft (6); a processing c...

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PUM

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Abstract

The present invention discloses a processor case with non-rectilinear slot on it and adopts banana-shaped structure or structure of linear that connected with arc segments. A compressor includes a processor case, rotor blade, stator blade, dish of wheel, stator inner loop and axis; the processor case includes organic case body and process ring, wherein one end of the stator blade connects with the stator inner loop and the other end connects with the organic case body; one end of the dish of wheel connects with the rotor blade while the other end connects with the axis; the process ring connects with the organic case body; the invention is characterized in that a process cavity is formed inside the case body and the process ring; the rotor blade rotates and air draft flows in from the process ring and circulates inside the process cavity, then flows out from the process ring. The present invention changes structure of traditional cases, improves performance, expands stable work margin of the processor case, and can be applied on aerial engine shaft pressured gas flow development work and has a broad application prospect.

Description

technical field [0001] The invention relates to the fields of machinery and gas dynamics, and in particular provides a processing casing and a gas compressor. Background technique [0002] The function of the compressor handling casing is to improve the stable working margin of the compressor. It is composed of slots evenly distributed in the circumferential direction around the outer casing of the rotor blade tip and a resident chamber outside the slots. The gas in the flow path of the compressor enters the cavity through the rear section of the slot, flows forward, and then flows back to the main flow through the front section of the slot. This bypass backflow delays the separation of rotor blade tip airflow and blockage of blade slots, and expands the stable working boundary of the compressor. The slots of the existing processing casing are linear, which cannot meet the installation angle of the front and rear slots. There are different design requirements. In the impl...

Claims

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Application Information

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IPC IPC(8): F04D29/52
CPCF04D29/526F04D29/685
Inventor 杜辉战鹏苗厚武王咏梅刘太秋丁拳赵鑫
Owner SHENYANG ENGINE DESIGN RES INST CHINA AVIATION IND CORP I
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