Title:
STORAGE TANK CLEANING AND DECONTAMINATION SYSTEM AND METHOD
Document Type and Number:
WIPO Patent Application WO/2021/175243
Kind Code:
A1
Abstract:
A storage tank cleaning and decontamination system for collecting and processing a radionuclide on the inner surface of a storage tank (1). The system comprises: a spray assembly (100) temporarily introduced into the storage tank (1), for controllably spraying an original detergent and/or the detergent resultant after collection and filtration onto the inner surface of the storage tank (1), and flushing the radionuclide from the inner surface of the storage tank (1) into a filtration and collection assembly (200); the filtration and collection assembly (200) arranged outside the storage tank (1) and directly facing a discharge port (11) of the storage tank (1), for filtering out the radionuclide carried in the detergent, so as to store the original detergent and/or the detergent resultant after collection and filtration; a pump (300) arranged outside the storage tank (1) and connected to the spray assembly (100) and the filtration and collection assembly (200) via a pipeline (500), for pressurizing the original detergent and/or the detergent resultant after collection and filtration and transporting the same to the spray assembly (100). Additionally, the present application further includes a storage tank cleaning and decontamination method. The system transfers the radionuclide or other impurities from the inner wall of the storage tank (1) into a filter element for centralized processing, so as to reduce the difficulty of processing.
Inventors:
ZHONG XIANG BIN (CN)
ZHANG XUE LING (CN)
WEI SHU HONG (CN)
LI QIANG (CN)
LI SEN QUAN (CN)
LIU FAN (CN)
ZHANG ZHEN NAN (CN)
ZHANG XUE LING (CN)
WEI SHU HONG (CN)
LI QIANG (CN)
LI SEN QUAN (CN)
LIU FAN (CN)
ZHANG ZHEN NAN (CN)
Application Number:
PCT/CN2021/078846
Publication Date:
September 10, 2021
Filing Date:
March 03, 2021
Export Citation:
Assignee:
CHINA NUCLEAR POWER ENG CO LTD (CN)
CHINA NUCLEAR POWER DESIGN COMPANY LTD SHENZHEN (CN)
CHINA GENERAL NUCLEAR POWER (CN)
CGN POWER CO LTD (CN)
CHINA NUCLEAR POWER DESIGN COMPANY LTD SHENZHEN (CN)
CHINA GENERAL NUCLEAR POWER (CN)
CGN POWER CO LTD (CN)
International Classes:
B01D29/35; B08B9/08; B08B9/093; B08B13/00
Foreign References:
| CN111330922A | 2020-06-26 | |||
| CN201711326U | 2011-01-19 | |||
| CN105307787A | 2016-02-03 | |||
| CN204817388U | 2015-12-02 | |||
| CN101497443A | 2009-08-05 | |||
| ES8603674A1 | 1986-01-01 | |||
| JPH10282295A | 1998-10-23 | |||
| US20170259309A1 | 2017-09-14 |
Attorney, Agent or Firm:
SCIHEAD IP LAW FIRM (CN)
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