JPS60194190U

JPS60194190U - Centrifugal compressor diffuser

Info

Publication number: JPS60194190U
Application number: JP8145384U
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 drawings]

第１図は本考案の一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■−■に沿った流れの圧力分布を示す線図
、第４図Ａ、　Ｂはそれぞれ第１図の変形例を示す部分
正面図、第５図Ａ、　Ｂ。Ｃはそれぞれ第１図及び第４図の突起を示す断面図であ
る。第６図は公知の遠心圧縮機を示す縦断面図、第７図
Ａ、　Ｂはそれぞれ第６図の■−■に沿った横断面図、
第８図は第７図のディフューザーの入口部の流体の流れ
を示す部分拡大図である。ｌａ、ｌｂ・・・壁面、２ａ・・・ディフューザ翼、３
・・・気体の流れ、３２・・・全圧、４１・・・斜め衝
撃波、４２・・・垂直衝撃波、４３・・・全圧、５１．
６１．６２・・・突起。第５図（Ａ）　７７ｆぺ。□ ＣＢ）□口「１ ―■Figure 1 is a partial front view showing an embodiment of the present invention, Figure 2A
, B are cross-sectional views taken along ■-H in Figure 1, and 3.
The figure is a diagram showing the pressure distribution of the flow along the line ■-■ in Figure 1, Figures 4A and B are partial front views showing a modification of Figure 1, and Figures 5A and B, respectively. C is a sectional view showing the protrusion of FIG. 1 and FIG. 4, respectively. FIG. 6 is a longitudinal cross-sectional view showing a known centrifugal compressor, and FIGS. 7A and B are cross-sectional views taken along the line ■-■ in FIG. 6, respectively.
8 is a partially enlarged view showing the flow of fluid at the inlet of the diffuser of FIG. 7. FIG. la, lb...Wall surface, 2a...Diffuser blade, 3
...Gas flow, 32...Total pressure, 41...Oblique shock wave, 42...Vertical shock wave, 43...Total pressure, 51.
61.62...protrusion. Figure 5 (A) 77f. □ CB) □ Mouth “1 -■

Claims

[Scope of utility model registration request]

The annular space between two disk-shaped walls facing each other is S'
In a diffuser that converts the velocity energy given to the fluid by an impeller into pressure by forming a plurality of diffuser channels partitioned by a plurality of radial diffuser blades, a wall surface of the diffuser channel at the inlet of the diffuser blade is used. A diffuser for a centrifugal compressor characterized by having a plurality of protrusions that generate oblique shock waves in a supersonic flow flowing into the diffuser.