发明名称 SEAL STRUCTURE OF FLANGE CONNECTION PART, AND SEALING METHOD OF FLANGE CONNECTION PART
摘要 <P>PROBLEM TO BE SOLVED: To provide a structure which prevents fluid from leaking through a bolt hole without deteriorating air-tightness between flange mating surfaces with a simple constitution. <P>SOLUTION: A seal structure 1 of flange connection part includes: an upper flange 7 and a lower flange 9 which are in contact with each other; an upper screw hole 721 which is disposed on the upper flange 7 and is opened to an upper contact surface 711; a lower screw hole 92 which is disposed on a lower flange 9 and is opened to a lower contact surface 91; a storage hole 722 which is opened to a clamping surface 712 while expanding the diameter from the upper screw hole 721; a fastener 6 which fastens the upper flange 7 and a lower flange 9 to integrate them; an O-ring 111 which is disposed so as to surround the bolt 61 in the storage hole 722; and a pressing member 112 which receives a fastening force of the fastener 6, pressing the O-ring 111 and swells the O-ring 111 in the radial direction of the bolt 61. <P>COPYRIGHT: (C)2012,JPO&INPIT
申请公布号 JP2012102802(A) 申请公布日期 2012.05.31
申请号 JP20100251882 申请日期 2010.11.10
申请人 MITSUBISHI HEAVY IND LTD;MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORP 发明人 OKADA NORIYUKI;NISHIOKA JUNPEI
分类号 F16J15/06;F16J15/10 主分类号 F16J15/06
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