热力发电2024，Vol.53Issue(3)：177-182,6.DOI:10.19666/j.rlfd.202308126
恒力支吊架性能指标研究及标准修改建议
Study on the performance index of constant supports and hangers and the modification suggestions of the standard
康豫军 1吴晓俊 1程勇明 1安付立 1祝俭 2彭天星 3曹燕东 4陈冰峰5
作者信息
- 1. 西安热工研究院有限公司,陕西 西安 710054
- 2. 江苏电力装备有限公司,江苏 常州 213012
- 3. 华电国际电力股份有限公司奉节发电厂,重庆 404652
- 4. 江苏焱鑫科技集团有限公司,江苏 江阴 214426
- 5. 江苏鼎吉能源工程技术有限公司,江苏 常州 213311
- 折叠
摘要
Abstract
High temperature steam pipe is an important part of the power plant.In order to coordinate the pipeline thermal expansion and reduce the pipeline thermal expansion stress caused by the higher altitude difference and larger horizontal span,a lot of constant supports and hangers are designed in pipeline.But because friction moment exists on the rotating shafts,constant supports and hangers are not a constant force,the load deviation will make the pipeline deviate from the designed cold and hot line,and the pipeline stress will increase.For controlling the quality of constant supports and hangers,there are two quality performance control indexes among the relevant domestic standards,namely the constant degree and the load deviation degree.This article focuses on the load deviation degree.It finds out that,the load of putting out pin measured by different loading directions is different,resulting in a large difference in load deviation degree due to friction moment of the rotating shaft of the constant supports and hangers.So the load of putting out pin shall not be used as a representative parameter.The study proposes that the average load shall represent the position of the displacement-load curve,which is a representative parameter of constant supports and hangers.A new formula for calculating the average load deviation degree is proposed.It is suggested to modify the related standards to improve the quality of the constant supports and hangers.关键词
恒力弹簧支吊架/恒定度/平均荷载偏差度Key words
constant supports and hangers/constant degree/average load deviation degree引用本文复制引用
康豫军,吴晓俊,程勇明,安付立,祝俭,彭天星,曹燕东,陈冰峰..恒力支吊架性能指标研究及标准修改建议[J].热力发电,2024,53(3):177-182,6.
