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Assembly type molten salt reactor

A molten salt reactor and component technology, applied in the directions of reactors, reactor fuel elements, moderators/core structures, etc., can solve the problems of unfavorable safe operation of the reactor, large number of fuel rods, and inability to be practically applied, so as to solve the problems of uranium resources. Scarcity, efficient recycling and management, effectiveness in solving energy problems

Active Publication Date: 2016-09-28
SHANGHAI INST OF APPLIED PHYSICS - CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0005] The technical problem that the present invention aims to overcome is to overcome the large number of fuel rods in the existing molten salt reactor, the need to refuel one by one, and the high cost of refueling, and the combination of fuel balls and online refueling is not conducive to the safe operation of the reactor. and the defects that cannot be practically applied, and provide a component type molten salt reactor

Method used

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  • Assembly type molten salt reactor
  • Assembly type molten salt reactor
  • Assembly type molten salt reactor

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Embodiment 1

[0043] In this embodiment, a module-type molten salt reactor core with a power of 1GW is taken as an example.

[0044] figure 1 is a longitudinal section view of a regular triangular prism fuel assembly; figure 2 It is a cross-sectional schematic diagram of the molten salt circulation channels on the top and bottom surfaces of the regular triangular prism fuel assembly; image 3 is a cross-sectional schematic diagram of structure 1; Figure 4 It is a cross-sectional schematic diagram of structure 2. There are 28 layers of fuel balls in Structure 2 1, and each layer has three layers. The top and bottom of the regular triangular prism have and figure 2 The same molten salt flow channel. They are the most important basic structures of the core. The fuel hexagonal prism structural unit is composed of six triangular prism fuel assemblies, and the hexagonal prism structural unit containing the control rod channel is composed of 5 fuel assemblies and a control rod channel 8, ...

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Abstract

The invention discloses an assembly type molten salt reactor. A reactor core of the assembly type molten salt reactor comprises a central reflecting layer, an active zone and an external reflecting layer which are coaxially arranged from interior to exterior; the active zone and the external reflecting layer are in regular hexagonal prism shape, the active zone encloses the external part of the central reflecting layer, and the external reflecting layer encloses the external part of the active zone; the active zone is composed of several regular hexagonal prism structural units, the regular hexagonal prism structural units are parallelly arranged at a radial direction in order to form a honeycomb structure, the regular hexagonal prism structural units are coaxially stacked at an axial direction in order to form a layered structure, and each regular hexagonal prism structural unit is assembled by six regular triangular prisms. The assembly type molten salt reactor has a clear position, and is good for control of power distribution; at the same time, materials can be conveniently loaded and unloaded, and a refuelling mode is simplified by means of displacement of radial and axial positions of assemblies, higher burnup of fuel is reached, and effective cycle and management of the fuel are realized.

Description

technical field [0001] The invention relates to a component type molten salt reactor. Background technique [0002] There are six types of fourth-generation 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). Among them, the molten salt reactor uses molten salt as the coolant, which has good economy and inherent safety. After the Fourth Generation Nuclear Energy Conference, conceptual designs of reactors using molten salt as coolant were proposed one after another, such as the Advanced High Temperature Reactor (AHTR) at Oak Ridge National Laboratory, and the Advanced High Temperature Reactor (PB-AHTR) at UC Berkeley, in 2011 The random pebble bed high-temperature thorium-based molten salt reactor proposed by the thorium-based molten salt reactor nuclear energy system (TMSR) pilot project launc...

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Application Information

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IPC IPC(8): G21C5/06G21C3/328
CPCG21C3/328G21C5/06Y02E30/30
Inventor 薛春朱智勇张海青林俊
Owner SHANGHAI INST OF APPLIED PHYSICS - CHINESE ACAD OF SCI
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