Fixture for sealing and fastening Canopy welding seam

The utility model discloses a fixture for sealing and fastening a Canopy welding seam. The fixture comprises a sealing element, a sealing element tray, an upper flange, a lower flange and a fastener, wherein the sealing element is supported by the sealing element tray and covers the outer surface of...

Full description

Saved in:
Bibliographic Details
Main Authors ZHANG YISHAO, LIU SEN, LI YUEZHONG, WEI QIAOYUAN, ZHENG MAOXI, DAI CHANGNIAN, SUN ZHENGUO, RAN XIAOBING, ZHAO MAOMAO
Format Patent
LanguageChinese
English
Published 24.12.2014
Subjects
NUCLEAR ENGINEERING
NUCLEAR PHYSICS
NUCLEAR REACTORS
PHYSICS
Online AccessGet full text

Cover

More Information
Summary:The utility model discloses a fixture for sealing and fastening a Canopy welding seam. The fixture comprises a sealing element, a sealing element tray, an upper flange, a lower flange and a fastener, wherein the sealing element is supported by the sealing element tray and covers the outer surface of the canopy welding seam; the upper flange is oppositely fixed with a CRDM (Control Rod Drive Mechanism) pressure resistant casing; the lower flange is positioned below the outer part of the sealing element tray and connected with the upper flange through the fastener in a fastening manner; the cooperation surface between the lower flange and the sealing element tray is a circular conical surface. Compared with the prior art, the fixture for sealing and fastening the Canopy welding seam, disclosed by the utility model, applies a radial pretightening force to the sealing element tray through the circular conical cooperation surface between the lower flange and the sealing element, so that the cooperation clearance b
Bibliography:Application Number: CN201420250859U