Shaftless rotary gate for nuclear reactor experimental hole shielding
Title：
Shaftless rotary gate for nuclear reactor experimental hole shielding
Application Number：
 200410098951
Application Date：
 2004/12/17
Announcement Date：
 2005/06/01
Pub. Date：
 2007/03/07
Publication Number：
 1622223
Announcement Number：
 1303614
Grant Date：
 2007-3-7
Granted Pub. Date：
 2007-3-7
ApplicationType：
 Invention
State/Country：
 11[China|beijing]
IPC：
 G21C 11/02
Applicant(s)：
 Tsinghua University
Inventor(s)：
 Sheng Xuanyu, Wu Shenxin, He Shuyan
Key Words：
 Shaftless rotary, gate, nuclear reactor, experimental hole shielding
Abstract：
 The present invention is shaftless rotating gate for shielding the experiment channel in nuclear reactor, belongs to the field of nuclear technological application, and aims at raising shielding effect and preventing jamming. The shaftless rotating gate includes five coaxial turntables inside casing, and the five turntables have inwards successively reduced diameters and are filled with shielding material. The first or the outmost turntable is rotated with gear worm mechanism, all the turntables have through holes in the corresponding eccentric position for leading out ray from the reactor after being aligned; all the turntables except the fifth or the inmost one have dialing rod in the position symmetrically to the through hole; and all the turntables except the first one have 60 deg arced slot to match the dialing rod in the next turntable. The gate of the present invention has high shielding effect and flexible rotation.
Claim：
Priority：
PCT：
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2008-4-17
  Selected patents owned by Tsinghua University filed in 2005 are loaded.
2008-3-31
  Selected patents owned by Tsinghua University filed in 2006 and 2007 are load.







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