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1. 发明授权

US4825198A Method of and apparatus for testing the tightnesses of two valves arranged in a fluid line 失效
标题翻译：用于测试布置在流体管线中的两个阀的密封性的方法和装置
公开(公告)号：US4825198A
公开(公告)日：1989-04-25
申请号：US168262
申请日：1988-03-15
申请人： Jurgen Rolker , Peter Doerfler , Volker Kleine , Johannes Meyknecht
发明人： Jurgen Rolker , Peter Doerfler , Volker Kleine , Johannes Meyknecht
IPC分类号： F16K37/00 , F23N5/24 , G01M3/04 , G01M3/26 , G01M3/28 , G08B21/00
CPC分类号： F16K37/0091 , G01M3/2876 , F23N2025/04 , F23N5/24
摘要： To test the tightnesses of two valves arranged upstream respectively downstream of each other in a fluid line, the pressure conditions in the line portion between the two valves is measured with both valves being closed. Following a certain time after the closure of the two valves, the pressure in the line portion is measured to determine whether pressure is above or below a predetermined limit pressure to conclude whether the one or the other valve is tight. Following this determination, the passageway is opened across the valve taken to be tight and the line portion is then drained or filled. During a measuring time interval then following, a differential pressure sensing device measures whether and how often the pressure in the line portion reaches or passes the limit pressure. The valve not yet taken to be tight is judged tight if the limit pressure is reached or passed once and considered not to be tight if the limit pressure is not reached or passed or reached or passed more than once during the measuring time.
摘要翻译：为了在流体管线中测试彼此分别在上游的上游的两个阀的密封性，在两个阀关闭时测量两个阀之间的管线部分中的压力条件。在两个阀关闭之后的一定时间后，测量管线部分中的压力以确定压力是否高于或低于预定极限压力，以确定一个或另一个阀是否紧固。在该确定之后，通道被打开以跨过阀门，使其被紧固并且然后排出或填充管线部分。在接下来的测量时间间隔期间，差压感测装置测量线路部分中的压力是否以及经过多长时间达到或超过极限压力。如果极限压力达到或超过一次，阀门尚未紧固，则认为不紧固，如果在测量时间内达不到或超过或超过限制压力超过一次，则认为阀门不紧固。

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