JPS60194189U

JPS60194189U - Centrifugal compressor diffuser

Info

Publication number: JPS60194189U
Application number: JP8145284U
Authority: JP
Inventors: 弘高東森
Original assignee: 三菱重工業株式会社
Priority date: 1984-06-01
Filing date: 1984-06-01
Publication date: 1985-12-24

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は本考案の第１実施例を示す部分正面図、第２図
Ａ、　Ｂはそれぞれ第１図の■−Ｈに沿った断面図、第
３図は第１図の■−Ｈに沿った流れの圧力分布を示す線
図、第４図はその第２実施例を示す部分正面図、第５図
は第４図の■−■に沿った断面図、第６図Ａ、　Ｂはそ
れぞれ第４図のＶｌ−ＶＩに沿った断面図である。第７
図は公知の遠心圧縮機を示す縦断面図、第８図Ａ、　Ｂ
はそれぞれ第７図の■−■に沿った横断面図、第９図は
第８図のディフューザ入口部の流体の流れを示す部分拡
大図である。１ａ、１ｂ・・・壁面、２ａ・・・ディフューザ翼、３
・・・気体の流れ、２１・・・スロート、３２・・・全
圧、４１・・・斜め衝撃波、４２・・・垂直衝撃波、４
３・・・全圧、５１・・・盛上がり、６１ａ、６１ｂ・
・・盛上がり、６２　ａ、　　６２　ｂ・・・盛上がり
、７１・・・斜め衝撃波。６２ａ　　　　　　　　　／ａ１　　　　　　　　　　（榎第６図（Ａ＞　　　　　　　　　ＣＢ）６２ａ　　　６１δ ）　　　　　　Ｊｌ　　　１　　　　１　　　）（，２ｂ　　　６１ｂ　　　　　６２ｂ　　　６１ｂ」
二１　　− Ｌ−■Figure 1 is a partial front view showing the first embodiment of the present invention, Figures 2A and B are sectional views taken along ■-H in Figure 1, and Figure 3 is a cross-sectional view along ■-H in Figure 1. 4 is a partial front view showing the second embodiment, FIG. 5 is a sectional view taken along the line ■-■ in FIG. 4, and FIGS. 6A and B are diagrams showing the pressure distribution of the flow along the 5A and 5B are cross-sectional views taken along the line Vl-VI in FIG. 4, respectively. 7th
The figure is a longitudinal sectional view showing a known centrifugal compressor, Figures 8A and 8B.
9 is a cross-sectional view taken along the line ■--■ in FIG. 7, and FIG. 9 is a partially enlarged view showing the flow of fluid at the inlet of the diffuser in FIG. 8, respectively. 1a, 1b...Wall surface, 2a...Diffuser blade, 3
...Gas flow, 21...Throat, 32...Total pressure, 41...Oblique shock wave, 42...Vertical shock wave, 4
3... Total pressure, 51... Swelling, 61a, 61b.
... Swelling, 62 a, 62 b... Swelling, 71... Oblique shock wave. 62a /a 1 (Enoki Figure 6 (A>CB) 62a 61δ) J l 1 1) (,2b 61b 62b 61b"
21-L-■

Claims

[Scope of utility model registration request]

The annular space between two disc-shaped walls facing each other is partitioned by a plurality of diffuser blades in the radial direction to form a plurality of diffuser channels, thereby converting the velocity energy given to the fluid by the impeller into pressure. A centrifugal compressor diffuser comprising: a protruding portion having a wedge-shaped cross section extending along a wall surface of a diffuser flow path at an inlet portion of a diffuser blade.