Aero-engine high-altitude simulation test bed regulating valve automatic model selection method

An aero-engine and high-altitude simulation technology, which is applied in the field of aero-engines, can solve problems such as progress delays, heavy demand workload, and calculation errors, and achieve the effect of improving work efficiency

Active Publication Date: 2021-04-06
AECC SICHUAN GAS TURBINE RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Each test bench requires a comprehensive selection and analysis of the control valve, which requires a huge workload. If the current m

Method used

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  • Aero-engine high-altitude simulation test bed regulating valve automatic model selection method
  • Aero-engine high-altitude simulation test bed regulating valve automatic model selection method
  • Aero-engine high-altitude simulation test bed regulating valve automatic model selection method

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Effect test

Embodiment 1

[0033] In order to solve the current situation of the lack of perfect and efficient air working environment simulation system control valve type selection analysis methods and tools in the construction of high-altitude test benches for aero-engines in my country. The invention proposes a whole-process type selection method for a regulating valve, and develops a set of automatic type selection tool software for a regulating valve based on the EN standard based on the Labview environment. Contains the following steps:

[0034] Step 1: According to the characteristics of the main test objects and test subjects of the high-altitude platform, analyze and summarize the limit boundary of the air intake and exhaust system for simulated air intake and exhaust systems, as the basis for subsequent type selection analysis.

[0035] Step 2: Based on the design principle of the aerodynamic layout of the high-altitude cabin, and according to the summarized limit boundary condition requiremen...

Embodiment 2

[0042] The specific process of this implementation case is: analyze the typical test points of the main test objects of a certain high-altitude simulation test bench to obtain the limit boundary of air intake and exhaust simulation demand pressure, temperature and flow adjustment. According to the principle of aerodynamic layout of the high-altitude test bench, to meet the requirements of the limit test point as the convergence condition, the working boundary of the control valve on the aerodynamic branch is calculated and analyzed, and the characteristic values ​​such as limit temperature, pressure and flow range are extracted. Based on the feature extraction value, in the type selection software developed by the present invention, the EN series standards are used as the criterion to conduct type selection analysis on key indicators such as the material of the control valve, PN grade, wall thickness, flange and its parameters.

[0043]Step 1: According to the typical limit tes...

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Abstract

The invention provides an aero-engine high-altitude simulation test bed regulating valve automatic model selection method. The method comprises the steps of acquiring the limit boundary of an air inlet system and an exhaust system simulated in the air working environment through analysis, obtaining the working boundary of each regulating valve on the pneumatic branch, determining an optimal regulating valve specification according to the working boundary of each regulating valve on the pneumatic branch, according to the working boundary of each regulating valve on the pneumatic branch, on the basis of the industrial valve shell strength design EN12516 in the EN standard series, inquiring and acquiring the suitable material and temperature and pressure grade of the regulating valve, according to the temperature and pressure grade and the optimal regulating valve specification, based on the industrial valve shell strength design EN12516, quantitatively determining the calculation pressure Pc, the stress factor S and the corrosion resistance constant c, acquiring the minimum shell wall thickness emin, meeting the minimum strength reliability requirement of the regulating valve, of the regulating valve through calculation according to a minimum wall thickness calculation formula, and conducting model selection on the regulating valve body flange and the companion flange.

Description

technical field [0001] The invention relates to the field of aero-engines, in particular to an automatic type selection method for a control valve of an aero-engine high-altitude simulation test bench. Background technique [0002] As the front-end adjustment device of the air working environment simulation system of the aero-engine high-altitude simulation test bench, the control valve not only directly determines the operation safety of the engine and high-altitude test equipment, but also indirectly affects the development and test progress of the aero-engine. The importance of this device The role is self-evident. The same high-altitude test bench often has to adapt to many different test objects and many complex test subjects, and different test subjects need to simulate the working environment in terms of air flow, pressure, and temperature indicators. Harsh features. It is not only required that the adjustment ability of the control valve must be able to meet the ne...

Claims

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Application Information

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IPC IPC(8): G01M15/14
CPCG01M15/14Y02T90/00
Inventor 赵伟但志宏张松钱秋朦王信裴希同侯鑫正李康徐志平陈斌
Owner AECC SICHUAN GAS TURBINE RES INST
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