专利名称：GAS VENT THROUGH SEAL 发明人：SAKAMAKI KAZUO
申请号：JP14666289
申请日：19890612
公开号：JPH0313894A
公开日：
19910122
专利内容由知识产权出版社提供
摘要：PURPOSE:To make inspection work in a guide pipe and a housing easy by making possible the flows of respective gases between an in-core monitor guide tube and a reactor upper part and between an in-core monitor housing and the reactor upper part. CONSTITUTION:An in-core monitor guide tube 15 is fixed on the upper end part of an in-core monitor housing 14 fixed on the bottom part of a reactor pressure vessel to insert an in-core guide seal 22 from the upper end part of the guide tube 1 after the in-core monitor is removed. In addition, a tube 25 is fixed on a guide 24 of a seal 22 to provide a seal rubber 28 between its lower piston 26 and a connecting sleeve 27 so as to communicate with a through hole of the center of the tube 25, the piston 26 and the sleeve 27 through a hose 32 to a reactor upper part. On the other hand, a guide 34 of the housing 14 is connected to a shaft 37 through a tube 36 to incorporate a packing 38 in the shaft 37 so as to communicate with the through hole of the center of the guide 34, the tube 36 and the shaft 37 with a reactor upper part.
申请人：TOSHIBA CORP
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>reactor pressure vessel

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