Title:
DOUBLE-WALLED SINGLE-PASS STEAM GENERATOR
Document Type and Number:
WIPO Patent Application WO/2023/090744
Kind Code:
A1
Abstract:
The present invention relates to a double-walled single-pass steam generator of a lead-cooled fast reactor, which can prevent heat transfer tube corrosion caused by lead or steam and can improve safety, integrity and heat transfer efficiency of a lead-cooled fast reactor. The double-walled single-pass steam generator of a lead-cooled fast reactor, according to the present invention, comprises: a vessel having, at the upper portion thereof, each of an inlet through which a coolant flows and a steam outlet through which steam is discharged; a plurality of heat transfer tubes which pass through the inside of the vessel in a straight line in the vertical direction and in which lead or a lead-bismuth coolant flows; a barrel, which is made of a thermally conductive metal material, separates the space between the inner peripheral surface of the vessel and the plurality of heat transfer tubes, has an upper end connected to the inner peripheral surface of the vessel above the inlet, and has a lower end opened to preheat the coolant that flows in through the inlet while guiding same to the lower end portion of the vessel; an upper heat transfer tube fixing part for supporting, at the upper portion of the vessel, the upper portions of the plurality of heat transfer tubes; a lower heat transfer tube fixing part for supporting, at the lower portion of the vessel, the lower portions of the plurality of heat transfer tubes; and heat transfer tube support plates provided in the barrel so as to support the plurality of heat transfer tubes.
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Inventors:
KIM JI HYUN (KR)
HWANG IL SOON (KR)
KIM BYEONG JU (KR)
KIM TAE YONG (KR)
HWANG IL SOON (KR)
KIM BYEONG JU (KR)
KIM TAE YONG (KR)
Application Number:
PCT/KR2022/017424
Publication Date:
May 25, 2023
Filing Date:
November 08, 2022
Export Citation:
Assignee:
ULSAN NAT INST SCIENCE & TECH UNIST (KR)
International Classes:
F22B1/16; F22B1/06; F22B17/10; G21C15/00; G21C17/00; G21D5/12
Foreign References:
| JP2002071861A | 2002-03-12 | |||
| US4747447A | 1988-05-31 | |||
| JP2010014583A | 2010-01-21 | |||
| KR20100032122A | 2010-03-25 | |||
| KR20190106559A | 2019-09-18 |
Attorney, Agent or Firm:
OH, Wihwan (KR)
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