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Fine particle removal device for nuclear power plant

A technology for fine particulate matter and nuclear power plants, used in nuclear engineering, radioactive purification, etc., can solve the problems of complex system implementation and expensive introduction, and achieve the effect of improving safety.

Inactive Publication Date: 2012-02-08
NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Although the wet filtration system solution of Framatome ANP in Germany is currently an advantageous solution, the introduction is expensive and the system implementation is complicated

Method used

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  • Fine particle removal device for nuclear power plant
  • Fine particle removal device for nuclear power plant

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Embodiment

[0036] figure 1 It is a schematic diagram of the fine particle removal device of a nuclear power plant. Such as figure 1 As shown, the fine particle removal device of the nuclear power plant provided by the present invention includes: a first valve 9, a pressurization device 3, a supercritical water tank 4, a heat exchange device 5, a decompression device 6, a steam-water separator 7, a jet pump 8, A second valve 10 and a third valve 11.

[0037] Wherein, one end of the first valve 9 is connected with the exhaust hole on the top of the containment vessel 1, and the other end is connected with the booster 3; the booster 3 is connected with the supercritical water tank 4; the top of the supercritical water tank 4 is connected with the second valve 10 Connected, the bottom of the supercritical water tank 4 is connected with the third valve 11; the second valve 10 is connected with the heat exchange device 5; the heat exchange device 5 is connected with the decompression device ...

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Abstract

The invention discloses a fine particle removal device of a nuclear power plant in the technical field of nuclear power plant safety protection. It includes a first valve, a pressurization device, a supercritical water tank, a heat exchange device, a decompression device, a steam-water separator, a jet pump, a second valve, and a third valve; wherein, one end of the first valve is connected to the exhaust at the top of the containment vessel The hole is connected, and the other end is connected with the booster; the booster is connected with the supercritical water tank; the top of the supercritical water tank is connected with the second valve, and the bottom of the supercritical water tank is connected with the third valve; the second valve is connected with the heat exchange device ; The heat exchange device is connected to the decompression device; the decompression device is connected to the bottom of the steam-water separator; the steam-water separator is connected to the jet pump, and the top of the steam-water separator is connected to the bottom of the containment; the jet pump is connected to the third valve; The water tank is filled with supercritical water. The invention effectively controls the discharge of radioactive substances to the environment.

Description

technical field [0001] The invention belongs to the technical field of safety protection of nuclear power plants, and in particular relates to a device for removing fine particles of nuclear power plants. Background technique [0002] In the event of a serious accident in a nuclear power plant, PM 10 (Particle diameter less than 10 microns) is the main body of fine particles. Among them, the radioactive substances harmful to the human body include inert gases (mainly krypton, xenon), volatile elements (mainly iodine, cesium), actinides (Pu , Cm), fission fragments and other aerosols. PM generated because 10 It has its own characteristics and special laws of motion, so strengthen the PM 10 Research on the movement law of particles in and around the reactor containment and the law of deposition on it, and design a new type of submicron particle removal system in the containment, which is helpful for preventing the overpressure failure of the containment in severe accidents ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G21F9/02
Inventor 周涛刘晓壮张记刚
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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