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System for the passive removal of heat from a water-cooled, water-moderated reactor via a steam generator

一种蒸汽发生器、压水反应堆的技术，应用在核能领域，能够解决水锤、不能提供足够系统除热等问题，达到提高除热效率的效果

Active Publication Date: 2017-09-26
SCI RES & DESIGN INST FOR ENERGY TECH ATOMPROEKT JSC ATOMPROEKT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] However, the design does not provide sufficient system heat removal
Furthermore, in the heat exchange circuit of known systems, water hammer can occur

Method used

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  • System for the passive removal of heat from a water-cooled, water-moderated reactor via a steam generator
  • System for the passive removal of heat from a water-cooled, water-moderated reactor via a steam generator
  • System for the passive removal of heat from a water-cooled, water-moderated reactor via a steam generator

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Embodiment Construction

[0042] The claimed system is a combination of coolant (water) circulation loops. In a preferred embodiment of the invention, the claimed system consists of four completely independent channels, each channel comprising one such circulation loop.

[0043] Loop ( figure 1 ) includes a steam generator (1) and a sectional heat exchanger (2) located above the steam generator (1) and in the cooling water supply tank (3). The sections of the heat exchanger (2) are connected to the steam generator (1) by inlet pipes (4) and outlet pipes (5) so that the inner space of the heat exchanger (2) is connected to the steam of the steam generator (1) The space, ie the system circulation loop is closed in its inner space.

[0044] The heat exchanger is divided into sixteen parallel heat exchange sections, each consisting of two half sections (see figure 2 , 3 ). The relationship between the half-section length (L) and the header bore diameter (D) in a section should satisfy the following c...

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Abstract

The invention relates to the field of nuclear engineering, and more particularly to systems for the passive removal of heat from water-cooled, water-moderated reactors via a steam generator, and is intended for cooling a reactor by the natural circulation of a coolant (water) in a loop within the system. The technical result is the improved efficiency of a heat sink, the improved stability of the flow of coolant in the loop and, as a result, the improved operating reliability of the system. The present passive heat removal system comprises at least one loop for circulating a coolant (water), containing a steam generator and a sectional heat exchanger, the latter being disposed inside a cooling water reserve tank, higher than the steam generator, and being connected to the steam generator by a supply pipe and a discharge pipe. The heat exchanger comprises an upper collector and a lower collector, connected by heat exchange pipes; start valves with different flow areas are mounted on the discharge pipe. Furthermore, the heat exchanger is divided into parallel sections according to the condition L / D<=20, where L is the length of half of a section (i.e. a half-section), and D is the inside diameter of a collector. Portions of the supply and discharge pipes of the circulation loop are configured in the form of a set of branched parallel pipes which are connected individually to each of the aforementioned sections of the heat exchanger.

Description

technical field [0001] The present invention relates generally to the field of nuclear energy, and more specifically to systems for passive heat removal from pressurized water reactors (SG PHRS) by means of steam generators, designed for use by natural circulation of coolant (water) in the system loop to cool the reactor. Background technique [0002] According to the background of the present invention, there are many similar solutions disclosing different configurations of passive heat removal systems. [0003] The Russian utility model patent RU78600 with the publication date of November 27, 2008 and the international classification number of G21C15 / 18 discloses an emergency heat removal system including a steam circuit and a water circuit, a condenser-evaporator and a once-through steam generator . In addition, a water supply tank is connected to the steam and water lines in parallel with the condenser-evaporator, said water supply tank being positioned relative to the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G21C15/18G21C1/02F22B1/08
CPCF22B1/08G21C1/02G21C15/18F28D1/0206F28F9/26F28D1/047F28D1/05316F28D2021/0054Y02E30/30F22B1/023
Inventor V·V·别兹列普金V·G·西多罗夫S·B·阿列克谢耶夫S·V·斯韦特洛夫V·O·库赫特维赫S·E·谢马什科T·G·瓦尔达尼德泽I·M·伊夫科夫
Owner SCI RES & DESIGN INST FOR ENERGY TECH ATOMPROEKT JSC ATOMPROEKT