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A system to prevent the spread of radioactive particulate products of nuclear power plants

A radioactive and anti-proliferation technology, applied in the safety field of nuclear power plants, can solve problems such as the diffusion of radioactive particle products, the diffusion of radioactive particle products, and the danger to the safety of surrounding residents, and achieve the effects of clear design principles, reduced use costs, and convenient implementation

Active Publication Date: 2018-05-08
NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Under normal circumstances, these three barriers can effectively ensure the safety of the nuclear power plant, but in some accidents, the protective layer of the nuclear power plant will rupture, so that the radioactive particle products will diffuse out of the hole in the protective layer and enter the atmosphere, thereby endangering Safety of surrounding residents
At present, there is no feasible, effective and convenient system and method for preventing the spread of radioactive particle products

Method used

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  • A system to prevent the spread of radioactive particulate products of nuclear power plants
  • A system to prevent the spread of radioactive particulate products of nuclear power plants
  • A system to prevent the spread of radioactive particulate products of nuclear power plants

Examples

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Effect test

Embodiment 1

[0068] A system for preventing the spread of radioactive particle products in nuclear power plants, the system includes an anti-proliferation device 100, a pedestal 200, and a cooling system, and the cooling system includes a coolant source 310, a pump 320, a coolant nozzle 330, and a coolant receiver 340.

[0069] The anti-proliferation device 100 is arranged outside the nuclear reactor, and it includes a hemispherical inner shell 110 and an outer shell 120. Between the two shells is an airtight hollow channel 130 for coolant circulation. The inner shell 110 and the outer shell 120 are both thick. It is a 2cm steel plate, and the width of the hollow channel 130 is 0.8m. The inner shell 110 and the outer shell 120 are provided with corresponding through holes, and the corresponding through holes on the two shells are connected by a cylindrical channel 140, and the surface area of ​​a single through hole on the inner shell 110 is 0.01 m 2 , the ratio of the sum of the surface ...

Embodiment 2

[0074] A system for preventing the spread of radioactive particle products in nuclear power plants, the system includes an anti-proliferation device 100, a pedestal 200, and a cooling system, and the cooling system includes a coolant source 310, a pump 320, a coolant nozzle 330, and a coolant receiver 340.

[0075] The anti-proliferation device 100 is arranged outside the nuclear reactor, and it includes a hemispherical inner shell 110 and an outer shell 120. Between the two shells is an airtight hollow channel 130 for coolant circulation. The inner shell 110 and the outer shell 120 are both thick. It is a 2cm steel plate, and the width of the hollow channel 130 is 0.8m. The inner shell 110 and the outer shell 120 are provided with corresponding through holes, and the corresponding through holes on the two shells are connected by a cylindrical channel 140, and the surface area of ​​a single through hole on the inner shell 110 is 0.01 m 2 , the ratio of the sum of the surface ...

Embodiment 3

[0080] A system for preventing the spread of radioactive particle products in nuclear power plants, the system includes an anti-proliferation device 100, a pedestal 200, and a cooling system, and the cooling system includes a coolant source 310, a pump 320, a coolant nozzle 330, and a coolant receiver 340.

[0081] The anti-proliferation device 100 is arranged outside the nuclear reactor, and it includes a hemispherical inner shell 110 and an outer shell 120. Between the two shells is an airtight hollow channel 130 for coolant circulation. The inner shell 110 and the outer shell 120 are both thick. It is a 2cm steel plate, and the width of the hollow channel 130 is 0.8m. Corresponding through holes are provided on the inner shell layer 110 and the outer shell layer 120 , and the corresponding through holes on the two shell layers are connected by channels 140 . The main cross section of the channel 140 is circular, and along the length direction of the channel 140, the radius...

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Abstract

The invention discloses a system for preventing radioactive particle products of a nuclear power plant from spreading. The system comprises a spreading preventing device (100), a stand (200) and a cold supply system, wherein the spreading preventing device (100) for preventing the radioactive particle product from spreading is arranged at the outer part of a nuclear reactor; the spreading preventing device comprises an inner housing layer (110) and an outer housing layer (120); a closed hollow channel (130) through which a cooling agent can flow is arranged between the two housing layers; the stand (200) for supporting the spreading preventing device (100) is mounted below the spreading preventing device (100); the cold supplying system, which is used for supplying the cooling agent to the hollow channel (130) of the spreading preventing device (100) and collecting and recovering the cooling agent through the stand (200), is connected with the spreading preventing device (100) and the stand (200). The system has the characteristics of being safe, efficient, convenient to implement, simple to control, and capable of performing modular assembling; the radioactive particle product of the nuclear power plant can be effectively prevented from spreading.

Description

technical field [0001] The invention relates to the safety field of nuclear power plants, in particular to a system for preventing the proliferation of radioactive particle products of nuclear power plants. Background technique [0002] The nuclear reactor of the nuclear power plant has three barriers, the first is the fuel cladding, the second is the pressure vessel, and the third is the cement protective layer. Under normal circumstances, these three barriers can effectively ensure the safety of the nuclear power plant, but in some accidents, the protective layer of the nuclear power plant will rupture, so that the radioactive particle products will diffuse out from the hole in the protective layer and enter the atmosphere, thereby endangering Surrounding residents are safe. At present, there is no feasible, effective and convenient system and method for preventing the spread of radioactive particle products. [0003] The inventors conducted research on protective device...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G21C13/10G21D1/02
CPCG21C13/10G21D1/02Y02E30/00Y02E30/30
Inventor 周涛王尧新李兵周蓝宇
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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