Title:
CONTROL ROD ABSORBER ASSEMBLY, CONTROL ROD AND CONTROL ROD ASSEMBLY
Document Type and Number:
WIPO Patent Application WO/2022/166513
Kind Code:
A1
Abstract:
A control rod absorber assembly (1), a control rod (3) and a control rod assembly. The control rod absorber assembly (1) comprises a first absorber (11), a second absorber (12) and a stress transmission assembly (13), wherein the stress transmission assembly (13) is arranged around the periphery of the second absorber (12) and forms a stress combination together with the second absorber (12), and a receding space (2) for accommodating the second absorber (12) when the second absorber expands in a radial direction is provided between the stress transmission assembly (13) and the periphery of the second absorber (12); and the first absorber (11) and the stress combination are configured to be mounted in a cladding tube (31) of a control rod (3), the first absorber (11) and the stress combination are arranged in an axial direction of the cladding tube (31), and the first absorber (11) is located above the stress combination and is configured for pressing the stress combination downwards. By arranging the stress transmission assembly (13), the second absorber (12) does not bear the action of gravity of the first absorber (11), so as to reduce compression creep of the second absorber (12); and when the second absorber (12) absorbs neutrons and expands in the radial direction, an expanded portion can be accommodated in a receding space (2), so as to prevent a cladding tube (31) from being damaged.
Inventors:
XUE ZHE (CN)
PANG ZHENGZHENG (CN)
LI WEICAI (CN)
PANG ZHENGZHENG (CN)
LI WEICAI (CN)
Application Number:
PCT/CN2022/070364
Publication Date:
August 11, 2022
Filing Date:
January 05, 2022
Export Citation:
Assignee:
CHINA NUCLEAR POWER TECHNOLOGY RES INST CO LTD (CN)
CHINA GENERAL NUCLEAR POWER (CN)
CHINA NUCLEAR POWER ENG CO LTD (CN)
CGN POWER CO LTD (CN)
CHINA GENERAL NUCLEAR POWER (CN)
CHINA NUCLEAR POWER ENG CO LTD (CN)
CGN POWER CO LTD (CN)
International Classes:
G21C7/103; G21C7/10; G21C7/11
Foreign References:
| CN113012828A | 2021-06-22 | |||
| US20010033632A1 | 2001-10-25 | |||
| US20090034674A1 | 2009-02-05 | |||
| EP0364910A2 | 1990-04-25 | |||
| CN103971760A | 2014-08-06 | |||
| CN110752044A | 2020-02-04 |
Attorney, Agent or Firm:
SHENZHEN REFINED INTELLECTUAL PROPERTY OFFICE (GENERAL PARTNERSHIP) (CN)
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