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公开(公告)号：EP0855548A3
公开(公告)日：2000-04-12
申请号：EP98300282.5
申请日：1998-01-15
摘要： A pipeline evacuating device (10) includes a first relatively rigid portion (12) and a second relatively deformable portion (14). The deformable portion (14) is arranged to be compressable against the rigid portion (12) when the device (10) is forced through a pipeline by the reaction of the material in the pipeline (16) against the force of movement of the device (10). The compression causes the second portion (14) to deform to at least substantially slidingly seal against the inside of the pipeline (16). Efficient evacuation of the material from the pipeline (16) is provided as the device (10) is forced therealong.
摘要翻译： 管道抽空装置（10）包括第一相对刚性部分（12）和第二相对可变形部分（14）。 当装置（10）通过管道（16）中的材料反作用力抵抗装置（10）的运动的力而通过管道时，可变形部分（14）被布置成可抵靠刚性部分 10）。 压缩导致第二部分（14）变形以至少基本上滑动地密封管道（16）的内部。 随着装置（10）沿其被挤压，提供从管道（16）中有效地排出材料。
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公开(公告)号：EP0985863A3
公开(公告)日：2001-08-16
申请号：EP99307144.8
申请日：1999-09-09
CPC分类号： F16K5/205 , Y10T137/043 , Y10T137/4252
摘要： The invention provides a valve 10,30 for connecting first and second conduits 12,14. The valve 10,30 comprises: a valve member 16 rotatably mounted in a housing 18, to define a space 22 between the valve member 16 and the housing 18; and inflatable seal means 20,32, operable to provide a seal between the valve member 16 and the housing 18. The invention further provides a valve assembly 40 for connecting first and second conduits 12,14. The assembly 40 comprises: a valve member 16 movably mounted in a housing 18, to define a space 22 between the valve member 16 and the housing 18; inflatable seal means 20,32, operable to provide a seal between the valve member 16 and the housing 18; and an air inlet controller 42 for supplying compressed air into the space 22, for driving a pig 44 along the conduits 12,14. The invention also provides methods of cleaning the valve 10,30 and assembly 40 in situ by in-line fluid flow.
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