Title:
METHOD FOR DETERMINING AND ADJUSTING ROTATION ANGLE OF ROTATABLE GUIDE VANE, AXIAL FLOW COMPRESSOR, AND GAS TURBINE
Document Type and Number:
WIPO Patent Application WO/2022/089485
Kind Code:
A1
Abstract:
Provided in the present disclosure is a method for determining and adjusting the rotation angle of a rotatable guide vane in low working conditions of an axial flow compressor of a marine gas turbine, comprising: extracting a pneumatic parameter at a feature cross-section position of an adjacent rear movable vane of a rotatable guide vane in each column of a compressor, solving the converted speed of a low working condition of the compressor and a design point converted speed, and calculating the peripheral speed of the movable vane; setting a converted flow value to calculate the axial speed of each column of movable vane inlets; given the expected inlet angle of attack of a next-stage movable vane, obtaining an inlet relative airflow angle of the next-stage movable vane after each column of rotatable guide vanes, and obtaining the rotation angle of each column of rotatable guide vanes, and obtaining rotation angle rules of the rotatable guide vanes of the compressor at different converted speeds. The method can effectively increase the surge margin index of a compressor under low working conditions.
Inventors:
LIN FENG (CN)
WANG QI (CN)
WAN XINCHAO (CN)
LI DONG (CN)
WANG TING (CN)
REN LANXUE (CN)
ZHANG ZHOU (CN)
HONG QINGSONG (CN)
WANG QI (CN)
WAN XINCHAO (CN)
LI DONG (CN)
WANG TING (CN)
REN LANXUE (CN)
ZHANG ZHOU (CN)
HONG QINGSONG (CN)
Application Number:
PCT/CN2021/126705
Publication Date:
May 05, 2022
Filing Date:
October 27, 2021
Export Citation:
Assignee:
NO 703 RES INSTITUTE OF CHINA SHIPBUILDING INDUSTRY CORPORATION (CN)
International Classes:
G06F30/15; F04D27/02; G06F30/17; G06F30/28
Foreign References:
| CN112464357A | 2021-03-09 | |||
| CN112487565A | 2021-03-12 | |||
| CN112487566A | 2021-03-12 | |||
| CN112464392A | 2021-03-09 | |||
| CN108223140A | 2018-06-29 | |||
| CN105402168A | 2016-03-16 | |||
| US20160215788A1 | 2016-07-28 |
Other References:
LIAO JI-XIANG, ET AL.: "Numerical Optimization of Combined Adjustment of Multi-Row Variable Inlet Guide Vane and Stators in a Multistage Axial-Flow Compressor", TUIJIN JISHU - JOURNAL OF PROPULSION TECHNOLOGY, GAI KAN BIANJIBU, BEIJING, CN, vol. 38, no. 2, 28 February 2017 (2017-02-28), CN , pages 334 - 340, XP055926338, ISSN: 1001-4055, DOI: 10.13675/j.cnki.tjjs.2017.02.012
JICHAO LI; FENG LIN; CHAOQUN NIE; JINGYI CHEN: "Automatic efficiency optimization of an axial compressor with adjustable inlet guide vanes", JOURNAL OF THERMAL SCIENCE, SP SCIENCE PRESS, HEIDELBERG, vol. 21, no. 2, 10 March 2012 (2012-03-10), Heidelberg , pages 120 - 126, XP035026562, ISSN: 1993-033X, DOI: 10.1007/s11630-012-0526-5
JICHAO LI; FENG LIN; CHAOQUN NIE; JINGYI CHEN: "Automatic efficiency optimization of an axial compressor with adjustable inlet guide vanes", JOURNAL OF THERMAL SCIENCE, SP SCIENCE PRESS, HEIDELBERG, vol. 21, no. 2, 10 March 2012 (2012-03-10), Heidelberg , pages 120 - 126, XP035026562, ISSN: 1993-033X, DOI: 10.1007/s11630-012-0526-5
Attorney, Agent or Firm:
LIU, SHEN & ASSOCIATES (CN)
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