Effect of Inlet Bend Pipe on the Centrifugal Compressor Performance and Its Optimization Design

被引：0

作者：

Tong D. ^{[1
]}

Tian H. ^{[2
]}

Liu X. ^{[1
]}

Liu Y. ^{[1
]}

Gao C. ^{[1
]}

Li X. ^{[1
]}

机构：

[1] National Key Laboratory of Diesel Engine Turbocharging Technology, China North Engine Research Institute, Tianjin

[2] School of Mechanical Engineering, Hebei University of Technology, Tianjin

来源：

Binggong Xuebao/Acta Armamentarii | 2021年 / 42卷 / 04期

关键词：

Guide fin; Inlet bend pipe; Numerical simulation; Transonic centrifugal compressor;

D O I：

10.3969/j.issn.1000-1093.2021.04.004

中图分类号：

学科分类号：

摘要：

Bend pipe is often used for air guidance at centrifugal compressor inlet, in which the distortion of inlet flow may be caused by secondary flow. For this problem, the influence law and mechanism of bend pipe on centrifugal compressor performance were studied through numerical simulation and bench test. On that basis,an optimization design method of adding the guide fins into the bend pipe was put forward and verified through simulation and bench test. The simulated and test results show that the pressure ratio and efficiency are deteriorated to a certain extent by adding the guide fins into the inlet bend pipe, which is more obvious at the chock point of compressor. The new bend pipe with guide fins can regulate the characteristics of the inner flow in the pipe. The improved flow state makes the flow at the compressor inlet become relatively uniform, thus improving the performance of compressor. © 2021, Editorial Board of Acta Armamentarii. All right reserved.

引用

页码：706 / 714

页数：8

共 13 条

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