核电厂氦气检漏技术分析与应用

 张冰

(中国核电江苏核电有限公司,江苏 连云港 222042)
摘要:结合换热器、氢气干燥器等系统的不同特点详细介绍了氦气检漏技术中真空检漏法、吸枪累积比对法、正压检漏法的工作原理及具体应用。通过对比论证方式,对各方法在灵敏度、辅助设备、安全性、工作效率等方面的优缺点进行解析。根据核电氦气检漏工作的开展情况,总结三种检漏方法的现场应用经验反馈,对后续氦气检漏工作的开展具有一定的指导意义。
关键词:泄漏;氦气;换热器;定位;定量
中图分类号:TM623 文献标志码:A doi:10.3969/j.issn.1006-0316.2016.09.017
文章编号:1006-0316 (2016) 09-0071-05
Application Analysis of Helium Leak Detection Technology in Nuclear Power Plant
ZHANG Bing
( CNNP Jiangsu Nuclear Power Co., Ltd., Lianyungang 222042, China )
Abstract:Considering the characteristics and difference of different systems,such as heat exchanger and hydrogen gas dryer, this paper introduced the principle and application of different helium leak detection technology named vacuum leak detection method, absorbing gun accumulation method and the positive pressure leak detection method. The advantages and disadvantages are analyzed for each method in leak detecting resolution, auxiliary equipments, security, efficiency and other aspects. According to the application of those helium leak detecting methods in the nuclear power plant, experiences of field application feedback were summarized, which will have certain guiding significance to the follow-up work on helium leak detection.
Key words:leak;helium leak detection;heat exchanger;positioning;quantification
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收稿日期:2016-03-07
作者简介:张冰(1986-),男,江苏徐州人,本科,工程师,主要从事性能试验工作。
 

 

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