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Graphite nodule slowing-down molten salt reactor

A technology for graphite balls and molten salt reactors is applied in the field of nuclear reactors, which can solve the problems of high difficulty in refueling and high manufacturing difficulty, and achieve the effects of miniaturizing manufacturing equipment, simplifying manufacturing processes, and flexibly entering and exiting the reactor.

Active Publication Date: 2020-10-02
SHANGHAI INST OF APPLIED PHYSICS - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In order to solve the problems of high difficulty in refueling and high production difficulty in the prior art, the present invention provides a graphite ball moderated molten salt reactor

Method used

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  • Graphite nodule slowing-down molten salt reactor
  • Graphite nodule slowing-down molten salt reactor
  • Graphite nodule slowing-down molten salt reactor

Examples

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Embodiment Construction

[0021] Below in conjunction with the drawings, preferred embodiments of the present invention are given and described in detail.

[0022] Such as Figure 1-Figure 2 As shown, the graphite sphere moderated molten salt stack according to a preferred embodiment of the present invention includes a reflective layer 2 housed in a cladding 1, and the reflective layer 2 defines an active region 3, which includes a first region 1 and a second region 1. In the second area II, the liquid fuel molten salt 4 fills the first area I and the second area II, and a plurality of graphite balls 5 acting as a moderator are only piled up in the first area I, that is, the graphite balls 5 float in the active area 3 In the upper first region I, the second region II is formed as a graphite nodule-free region.

[0023] The material of the cladding 1 is a material suitable for the core structure, which needs to have characteristics such as high strength, corrosion resistance, high melting point, and lo...

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Abstract

The invention relates to a graphite nodule moderated molten salt reactor comprising a reflective layer accommodated in a cladding, the reflective layer defines an active zone, the active zone comprises a first zone and a second zone, a liquid fuel molten salt flows from bottom to top to fill the first zone and the second zone, a plurality of graphite nodules playing a moderated role are only stacked in the first zone. According to the graphite nodule slowing-down molten salt reactor disclosed by the invention, liquid molten salt is used as a fuel, the graphite nodules are used as moderator, onone hand, the advantages of the molten salt reactor are inherited, and the refueling cost and the technical difficulty are reduced, on the other hand, the manufacturing process is simplified, and dueto the fact that the graphite nodules are simple in shape, manufacturing equipment is miniaturized, reactor entering and discharging are more flexible, and the operation technical difficulty is greatly reduced.

Description

technical field [0001] The invention relates to a nuclear reactor, more particularly to a graphite ball moderated molten salt reactor. Background technique [0002] There are six types of fourth-generation nuclear reactors: gas-cooled fast reactor (GFR), lead-cooled fast reactor (LFR), molten salt reactor (MSR), sodium-cooled fast reactor (SFR), supercritical water-cooled reactor (SCWR), supercritical High temperature gas-cooled reactor (VHTR). As one of the six reactor types, molten salt reactor has outstanding advantages in inherent safety, nuclear fuel cycle, miniaturization, effective utilization of nuclear resources and prevention of nuclear proliferation. These include Oak Ridge National Laboratory's Advanced High Temperature Reactor (AHTR) using molten salt as a coolant, UC Berkeley's Pebble Bed Advanced High Temperature Reactor (PB-AHTR), and MSRE, MSBR using molten salt as fuel, and the 2011 The thorium-based molten salt reactor proposed by the pilot project of th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G21C5/12G21C3/54
CPCG21C5/126G21C3/54Y02E30/30
Inventor 张海青王鹏曹长青张锋李子威严超林俊朱智勇
Owner SHANGHAI INST OF APPLIED PHYSICS - CHINESE ACAD OF SCI
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