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JP2013075277A Leakage inspection gas mixer of buried pipeline, and leakage inspection method of buried pipeline 有权
标题翻译：管道泄漏检测气体混合器和管道泄漏检测方法
公开(公告)号：JP2013075277A
公开(公告)日：2013-04-25
申请号：JP2011217925
申请日：2011-09-30
申请人： Tokyo Gas Co Ltd , 東京瓦斯株式会社 , Tokyo Gas Chemical Hanbai Kk , 東京ガスケミカル販売株式会社
发明人： ISHIKAWA MOTOMICHI , SATAKE YUKINOBU , HIGASHI MASAAKI , HIRANO TADASHI
IPC分类号： B01F15/04 , B01F3/02 , B01F5/00 , G01M3/22 , G01M3/28
摘要： PROBLEM TO BE SOLVED: To be able to immediately mix inspection gas that has a desired component proportion in situ doing a leakage inspection of buried pipeline.SOLUTION: An apparatus that mixes inspection gas injected to a buried pipeline to perform leakage inspection of the buried pipeline includes: a first channel 10 having an inlet end 10A connected to the source of a first constituent gas; a second channel 20 having an inlet end 20A connected to the source of a second constituent gas; and a mixing channel 30 that communicates with the first channel 10 and the second channel 20, in which mixed gas of the first constituent gas and the second constituent gas circulates, and that has an exit end 30A connected to the inlet of the buried pipeline, wherein the first channel 10 is provided with a first pressure reducing valve 11 that sets the component proportion of the first constituent gas, the second channel is provided with a second pressure reducing valve 21 that sets the component proportion of the second constituent gas, and in the first pressure reducing valve 11 and the second pressure reducing valve 21, the first pressure control chambers 11a, 21a thereof communicate each other.
摘要翻译：要解决的问题：为了能够立即将具有所需组分比例的检查气体与原位进行埋地管道的泄漏检查混合。解决方案：一种将注入埋地管道的检查气体进行混合以对埋管进行泄漏检查的装置，包括：第一通道10，其具有连接到第一构成气体源的入口端10A; 第二通道20具有连接到第二构成气体的源的入口端20A; 以及与第一构成气体和第二构成气体的混合气体循环的第一流路10和第二流路20连通的混合流路30，具有与埋入管路的入口连接的出口端30A，其中，第一通道10设置有设定第一构成气体的成分比例的第一减压阀11，第二通道设置有设定第二构成气体的成分比例的第二减压阀21，第一减压阀11和第二减压阀21，第一压力控制室11a，21a彼此连通。版权所有（C）2013，JPO＆INPIT

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