Passive residual heat exhausting system for molten salt reactor

A passive waste heat, molten salt reactor technology, applied in reactors, nuclear power generation, greenhouse gas reduction, etc., can solve problems such as economic decline, inconvenient maintenance, and increased failure rate of system equipment, reducing system equipment and improving inherent safety. sexual effect

Inactive Publication Date: 2013-11-20
HARBIN ENG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The waste heat removal system of ORNL10MW molten salt reactor is an active system. When the cooling water delivery line in the special cooling tower fails or other reasons cause the condenser to fail

Method used

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  • Passive residual heat exhausting system for molten salt reactor
  • Passive residual heat exhausting system for molten salt reactor
  • Passive residual heat exhausting system for molten salt reactor

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Embodiment Construction

[0024] The present invention is described in more detail below in conjunction with accompanying drawing example:

[0025] combine Figure 1~5 , the present invention mainly includes a salt discharge tank 1, a heat exchange element 2, a steam drum 3, an air cylinder 4, an air cooler 5, a water supply tank 17, a water supply tank 14, and related valves 6, 7, 11, 12, 13, 16, 18, 19, temperature sensors 9, 10, liquid level sensors 8, 15 and piping system.

[0026] The main body of the salt discharge tank 1 is a cylindrical structure made of INOR-8 nickel-based alloy, which is used to store molten salt that can continue to generate decay heat. The volume of the salt discharge tank 1 determines that the fuel salt cannot be stored in the tank. When the critical point is reached, a heat exchange element guide pipe, that is, the outermost casing of the heat exchange element 2, is arranged in the salt discharge tank 1 .

[0027] The heat exchange element 2 is a casing structure. There...

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Abstract

The invention aims to provide a passive residual heat exhausting system for a molten salt reactor. The passive residual heat exhausting system comprises a salt discharging pot, heat exchanging elements, a steam pocket and a ventilator, wherein the upper part of each heat exchanging element is located in the steam pocket, the lower part of each heat exchanging element is located in the salt discharging pot, and other parts of each heat exchanging element are located between the steam pocket and the salt discharging pot; each heat exchanging element comprises a heat transferring pipe; each heat transferring pipe is internally provided with a middle sleeve; each middle sleeve comprises an inner wall and an outer wall; a channel for steam to flow through is formed between each inner wall and the corresponding outer wall; a water inlet pipeline is formed in the inner wall of each middle sleeve, a water inlet is formed in the top of each water inlet pipeline, and the bottom end of each water inlet pipeline is disconnected and is communicated with the corresponding channel; the ventilator is internally provided with an air cooler; an air cooler inlet is formed in the end part of the air cooler and a fin pipe is arranged in the middle of the air cooler; the steam pocket is communicated with the air cooler inlet. According to the passive residual heat exhausting system for the molten salt reactor provided by the invention, the passive working capability of the system is improved, the problems of high fault rate and the like caused by the design of an active system are solved, and therefore, the safety of the residual heat exhausting system for the molten salt reactor is improved.

Description

technical field [0001] The invention relates to a waste heat discharge system in the field of thermal engineering and water conservancy research. Background technique [0002] In July 2002, at the Fourth Generation International Nuclear Energy Forum (GIF), the molten salt reactor (MSR) was established as one of the six reactor types for the priority development of the fourth generation nuclear energy system. As the only liquid fuel reactor in the fourth generation reactor, compared with other types of reactors, molten salt reactor has the characteristics of high inherent safety, flexible fuel cycle characteristics, etc., and can effectively use nuclear resources and prevent nuclear proliferation. The molten salt reactor was proposed by the Oak Ridge National Laboratory (ORNL), and in 1954, the first 2.5MW experimental molten salt reactor (ARE) for military space nuclear power research was built, and a circulating fluorinated molten salt was also established. System performa...

Claims

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Application Information

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IPC IPC(8): G21C15/18
CPCY02E30/40Y02E30/30
Inventor 孙露孙立成阎昌琪赵行斌法丹孙中宁曹夏昕王建军范广铭丁铭
Owner HARBIN ENG UNIV
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