Title:
STEAM GENERATOR, METHOD FOR RELIEVING WEAR OF HEAT TRANSFER TUBES THEREOF, AND COMPONENT MOUNTING METHOD
Document Type and Number:
WIPO Patent Application WO/2024/055828
Kind Code:
A1
Abstract:
The present invention provides a steam generator, a method for relieving wear of heat transfer tubes of the steam generator, and a component mounting method for relieving wear of the heat transfers tube of the steam generator. The steam generator comprises: a housing; an inner sleeve which is arranged inside of the housing, a descending channel for fluid being formed by an outer side surface of the inner sleeve and an inner side surface of the housing; a heat transfer tube bundle which is arranged inside of the inner sleeve to exchange heat with the fluid; a primary separator which is arranged right above the heat transfer tube bundle and the inner sleeve, and is fixed inside of the housing to carry out gas-liquid separation on the fluid after heat exchange; and a resistance component which is arranged at an inlet of the descending channel to buffer the fluid flowing past and reduce the flow speed of the fluid. By means of optimizing and improving the secondary side structure of the steam generator, flow-induced vibration wear of the heat transfer tube bundle caused by an uneven flow field or excessively high flow velocity of the heat transfer tube bundle of the steam generator is overcome, effectively preventing the occurrence of heat transfer tube bundle ruptures without affecting heat transfer efficiency.
Inventors:
ZHOU QUAN (CN)
LIU CHANG (CN)
JIAO MING (CN)
ZHANG WEI (CN)
YING BINGBIN (CN)
TANG LICHEN (CN)
CHAO MENGKE (CN)
ZHANG KAI (CN)
JING YI (CN)
LIN SHAOXUAN (CN)
HE YINBIAO (CN)
SHAO CHANGLEI (CN)
LI CHEN (CN)
MEN QIMING (CN)
ZHANG XINGLIANG (CN)
HUANG JUN (CN)
YAO YANGUI (CN)
YOU YAN (CN)
ZHANG YICHENG (CN)
LI JINGHUAI (CN)
YANG XING (CN)
LIU CHANG (CN)
JIAO MING (CN)
ZHANG WEI (CN)
YING BINGBIN (CN)
TANG LICHEN (CN)
CHAO MENGKE (CN)
ZHANG KAI (CN)
JING YI (CN)
LIN SHAOXUAN (CN)
HE YINBIAO (CN)
SHAO CHANGLEI (CN)
LI CHEN (CN)
MEN QIMING (CN)
ZHANG XINGLIANG (CN)
HUANG JUN (CN)
YAO YANGUI (CN)
YOU YAN (CN)
ZHANG YICHENG (CN)
LI JINGHUAI (CN)
YANG XING (CN)
Application Number:
PCT/CN2023/114555
Publication Date:
March 21, 2024
Filing Date:
August 24, 2023
Export Citation:
Assignee:
SHANGHAI NUCLEAR ENG RES & DESIGN INST CO LTD (CN)
International Classes:
G21D1/00; F22B1/02; F22D11/00
Foreign References:
| CN115371469A | 2022-11-22 | |||
| CN201462796U | 2010-05-12 | |||
| CN104456511A | 2015-03-25 | |||
| CN110887027A | 2020-03-17 | |||
| CN114065436A | 2022-02-18 | |||
| SE7507195L | 1975-12-22 | |||
| GB1543092A | 1979-03-28 |
Attorney, Agent or Firm:
BEIJING RIMOON INTELLECTUAL PROPERTY AGENCY LTD. (CN)
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