某燃气轮机内部燃料气管道补偿方案设计
Compensation Design of Fuel Gas Piping For a Gas Turbine
白东方 1彭志胜 2鲍林军 3王宏泽2
作者信息
- 1. 杭州汽轮控股有限公司,浙江杭州 310000;杭州汽轮动力集团股份有限公司,浙江杭州 310000
- 2. 杭州汽轮控股有限公司,浙江杭州 310000
- 3. 浙江燃创透平机械有限公司,浙江 杭州 311199
- 折叠
摘要
针对燃烧筒外置的燃气轮机内部燃料气管道,首先综合考虑了燃机、燃烧筒及管道的热膨胀情况下,基于ANSYS初步仿真结果,提出了一种通过环管管夹处预留膨胀间隙和采用波纹管补偿的方法,用以分别补偿环管和各支管热应力,进而对支撑的温度场和环管的二次应力进行了校核,结果表明该支撑设计方案可以满足二次应力要求,并且对介质的温度影响很小,可以忽略;其次采用StarCD对各支管正常工况下的流量分配特性进行了分析,得出了该布置下各支管的流量分配情况,结果表明三路燃料的不均匀度均能满足设计要求.该设计方案可为实际工程中内部燃料输送管道设计提供依据.
Abstract
A method is proposed to compensate the thermal stress of the fuel gas manifold by reserving expansion gap at the piping clamp and the thermal stress of each branch pipe by using metal hose.This method is based on ANSYS simulation results,especial-ly suitable for gas turbine with combustor outside.Then the temperature field of the support and the secondary stress of the ring pipe are checked.The results show that the support design scheme can meet the requirements of secondary stress,and the tempera-ture has little effect on the gas,which can be ignored;secondly,the flow distribution characteristics of each branch pipe under nor-mal working conditions are analyzed by StarCD,and the results show that the non-uniformity of three fuel gases for each combus-tor can meet the design requirements.The design scheme can provide a reference for the design of internal fuel pipeline in practical engineering.
关键词
燃气轮机/内部燃料/支撑设计/应力补偿/温度场分析/均匀性分析Key words
Gas Turbine/Internal Fuel Gas/Support Design/Stress Compensation/Temperature Analysis/Uni-formity Analysis引用本文复制引用
基金项目
省重点研发计划(2020)(2020C01088)
出版年
2024
NETL
NSTL
维普
万方数据