Title:
STRAINER WALL STRUCTURE, FILTERING METHOD USING THE STRAINER WALL STRUCTURE, AND METHOD OF MANUFACTURING THE STRAINER WALL STRUCTURE
Document Type and Number:
WIPO Patent Application WO/2011/155665
Kind Code:
A1
Abstract:
The present invention relates to a strainer wall structure which is used to remove impurities from fluid admitted into a pipe and a recirculation pump when the recirculation pump is driven via the operation of an Emergency Core Cooling System (ECCS) upon the occurrence of a pipe fracture accident at a nuclear power plant; and to a filtering method using the strainer wall structure; and a method for manufacturing the strainer wall structure. The strainer wall structure of the present invention is a strainer wall structure having at least one inlet end into which cooling water flows, and a discharge end from which filtered cooling water is discharged, and comprises: a body having an open portion at the inlet end, a sealed side surface, and a discharge hole defined in the side of the sealed surface; a filter screen inserted in the open portion and formed as a perforated plate having a plurality of filtering holes; and a modular cassette device configured of first filter plates and second filter plates. The first filter plate is inserted in the body and is formed by bending a perforated plate defining a plurality of first cutouts, and the second filter plate is formed by bending a perforated plate defining a plurality of second cutouts inserted in the first cutouts. The modular cassette device is formed in a lattice structure by assembling the plurality of second filter plates perpendicularly to the plurality of first filter plates aligned in parallel.
Inventors:
OH SEUNG-JONG (KR)
KIM SANG-YEOL (KR)
KIM HYEONG-TEAK (KR)
KIM CHANG-HYUN (KR)
LEE SANG-WON (KR)
WOO JONG-IN (KR)
KIM SANG-YEOL (KR)
KIM HYEONG-TEAK (KR)
KIM CHANG-HYUN (KR)
LEE SANG-WON (KR)
WOO JONG-IN (KR)
Application Number:
PCT/KR2010/005663
Publication Date:
December 15, 2011
Filing Date:
August 24, 2010
Export Citation:
Assignee:
KOREA HYDRO NUCLEAR POWER CO LTD (KR)
BHI CO LTD (KR)
OH SEUNG-JONG (KR)
KIM SANG-YEOL (KR)
KIM HYEONG-TEAK (KR)
KIM CHANG-HYUN (KR)
LEE SANG-WON (KR)
WOO JONG-IN (KR)
BHI CO LTD (KR)
OH SEUNG-JONG (KR)
KIM SANG-YEOL (KR)
KIM HYEONG-TEAK (KR)
KIM CHANG-HYUN (KR)
LEE SANG-WON (KR)
WOO JONG-IN (KR)
International Classes:
G21C15/18; B01D25/00
Foreign References:
| KR20050077709A | 2005-08-03 | |||
| KR20050077725A | 2005-08-03 | |||
| KR20000070797A | 2000-11-25 | |||
| US20030196950A1 | 2003-10-23 |
Attorney, Agent or Firm:
NAM, Jin-Woo et al. (KR)
남진우 (KR)
남진우 (KR)
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Claims: