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1. 发明专利

JPS59160733A Method and device for testing water leakage in piping system 失效
标题翻译：用于测试管道系统中水泄漏的方法和装置
公开(公告)号：JPS59160733A
公开(公告)日：1984-09-11
申请号：JP3627483
申请日：1983-03-04
申请人： Takenaka Komuten Co Ltd
发明人： UEDA YUTAKA , MAKINO SHIGERU , OOGAWARA TADAO , NAKANO MITSUNORI , TAKAHASHI NORIYUKI , ISHIKAWA KENJI
IPC分类号： G01M3/26 , G01M3/00 , G01M3/28 , G01M99/00
CPC分类号： G01M99/00
摘要： PURPOSE:To enable early discovery of a defective point before completion by fluctuating the pressure in a test piping by the combination of pressurizing means and a stop valve so that the fatigue in the potential defective part is accelerated. CONSTITUTION:A storage tank 1, a pressurizing pump 2 and a test piping 3 are connected respectively to each other by means of pipings 4, 5. When the pressure in the piping 3 is increased by driving the pump 2 and opening or closing a stop valve 8 by operating a open/shut driving mechanism 9, the pressure in the piping 3 is decreased sharply by the opening of the valve 8. The pressure increases again when the valve is closed. The discharging rate of water is adjusted by a valve 10, and the period for opening and closing the valve is adjusted by the mechanism 9, by which the pressure is set at the fluctuating width which is most suitable for the test sample. If the pressure in the test piping is fluctuated in such a way, a dynamic pressure is continuously exerted on the joint part which is a potential defective part, by which the fatigue is accelerated and leakage of water is generated.
摘要翻译：目的：通过加压装置和截止阀的组合使试验管道中的压力波动，使得在潜在的有缺陷的部件的疲劳加速，使得在完成前能够及早发现缺陷点。构成：储罐1，加压泵2和试管3分别通过管道4,5连接。当通过驱动泵2并打开或关闭止动件来增加管道3中的压力时通过操作打开/关闭驱动机构9的阀8，通过阀8的打开，管道3中的压力急剧下降。当阀关闭时，压力再次增加。通过阀10调节水的排出速度，通过机构9调节开闭阀的周期，通过该机构9将压力设定在最适合于试样的波动宽度。如果试验配管中的压力以这种方式波动，则动作压力连续地施加在作为潜在缺陷部的接合部上，疲劳被加速并且产生水的泄漏。

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