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Flow distribution device used for tank-type forced circulation reactor

A technology of flow distribution device and forced circulation, applied in the direction of reactor, cooling device, moderator/core structure, etc., can solve the problems of complex installation and maintenance, complex structure, etc., achieve simple structure, improve economy and reduce cost Effect

Active Publication Date: 2015-03-11
HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
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  • Summary
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Problems solved by technology

Most of the pool reactors in which the driving mechanism is placed at the core inlet (cold pool) use the primary flow distribution of the large grid header combined with resistance components to distribute the core coolant. Although this flow distribution structure can be better It satisfies the flow distribution effect of each component, but its structure is more complicated, and its installation and maintenance are more complicated

Method used

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  • Flow distribution device used for tank-type forced circulation reactor
  • Flow distribution device used for tank-type forced circulation reactor
  • Flow distribution device used for tank-type forced circulation reactor

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Embodiment Construction

[0016] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0017] Such as figure 1 Shown is the structural diagram of the flow distribution device, 1 is the pump outlet pipe; 2 is the large header; 3 is the component support plate; 4 is the horizontal flow distribution plate; 5 is the cylindrical deflector; 6 is the fluid preliminary mixing area; 7 is a fluid uniform area; 8 is a fluid distribution area, the pump outlet pipe 1 in the present invention is uniformly distributed in the circumferential direction, and the two ends are respectively connected to the pump outlet and the flow distribution device inlet; the large header 2 is a circle with equal wall thickness There are four coolant inlet holes evenly opened in the circumferential direction to connect the pump pipeline; the component support plate 3 is a circular flat plate with equal wall thickness, and holes for positioning and fixing component...

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Abstract

The invention discloses a flow distribution device used for a tank-type forced circulation reactor. The flow distribution device comprises pump outlet pipes, a large header, a component support plate, a horizontal flow distribution plate and a cylinder-shaped flow guiding plate. The flow distribution device realizes the function of reasonable distribution of flow of a reactor core coolant, can be taken as a support device for the reactor core, is simple and reliable in structure without adding other in-reactor devices, and can avoid frequent maintenance caused by a complex structure, and effectively improve the reliability and the safety of the reactor.

Description

technical field [0001] The invention belongs to internal components of a pool reactor, in particular to a flow distribution device for a pool type forced circulation reactor, which is a grid-type flow distribution device for coolant flow distribution in the lower chamber of the reactor, and has a core support function. Background technique [0002] The flow distribution device is installed at the lower part of the reactor core to uniformly enter the coolant into the core and meet the requirements of the thermal hydraulic design of the reactor. The pool reactor integrates the driving pump, heat exchanger, core and main design components in a container, which belongs to a highly integrated structure group, resulting in high requirements for the size and space of the container, and it is difficult to install and maintain various equipment. Therefore, in the design process of the flow distribution device, its structure should be simplified as much as possible to improve the stab...

Claims

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Application Information

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IPC IPC(8): G21C15/14G21C5/10
CPCG21C5/10G21C15/14Y02E30/30
Inventor 葛增芳张勇柏云清周涛吴宜灿
Owner HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
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