Efficient filter shell of nuclear power plant and recycling method thereof

A high-efficiency filter, nuclear power plant technology, applied in nuclear engineering, radioactive purification and other directions, can solve the problems of different high-efficiency filter structures, and the filter recycling method cannot be applied to nuclear power plants with radioactive pollution particles, etc., to reduce radioactive pollution. , The effect of shortening the production cycle and reducing the volume

Pending Publication Date: 2019-01-25
LINGDONG NUCLEAR POWER +5
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In an ordinary non-radiative environment, the prior art has a recycling method for the air filter frame, such as the invention patent of CN103736338A, which discloses a plate filter, which is used for air filtration, and The plate filter is recycled, but this patent is used in a non-radiation environment. The filter is mainly used to filter the dust in the air and has no radioactive substances. Therefore, the filter recycling method in this patent cannot be applied to those with Nuclear power plants with radioactive contamination particles and different structures than HEPA filters

Method used

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  • Efficient filter shell of nuclear power plant and recycling method thereof
  • Efficient filter shell of nuclear power plant and recycling method thereof
  • Efficient filter shell of nuclear power plant and recycling method thereof

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Embodiment 1

[0038] This embodiment provides a method for reusing high-efficiency filter housings in nuclear power plants. The used waste high-efficiency filter housings are first disassembled, and then the filter plate is stripped from the filter material, and then the radioactive contamination is measured. Filter plates and mounting plates that are not polluted or less polluted are reassembled and used.

[0039] The high-efficiency filter housing in this embodiment is improved, and the high-efficiency filter housing is assembled from a detachable filter plate and a mounting plate. The filter plate and installation plate are made of stainless steel, and require a 5-year cycle, which is reusable. It can not only increase the mechanical strength of the frame, but also facilitate the decontamination and cleaning of the surface when the filter material is repeatedly bonded.

[0040] Such as figure 1 As shown, the method for reusing the high efficiency filter housing of the nuclear power pla...

Embodiment 2

[0067] Such as image 3 As shown, the method for reusing the high efficiency filter housing of the nuclear power plant provided in this embodiment includes the following steps:

[0068] S201: disassemble the high-efficiency filter housing;

[0069] Disassemble the high-efficiency filter housing after filtration, and disassemble the assembled filter plate and mounting plate by removing the bolts. The filter plate and mounting plate are handled separately.

[0070] S202: Peel off the filter material on the filter plate;

[0071] Peel off the bonded filter plate and filter material that needs to be replaced after filtration. The stripping environment must be carried out in a room or equipment with negative pressure. In a negative pressure environment, it can prevent radioactive dust from spilling during the stripping process. Because the filter material is firmly bonded to the filter plate. The directly bonded filter material needs to be peeled off by heating with a heater, o...

Embodiment 3

[0089] This embodiment provides a high-efficiency filter housing for a nuclear power plant. The high-efficiency filter housing for a nuclear power plant is a part of the high-efficiency filter, and the high-efficiency filter includes a housing and a filter element.

[0090] Such as Figure 4 , Figure 5 and Image 6 As shown, the nuclear power plant high-efficiency filter housing of the present embodiment includes two filter plates 1 and four mounting plates 2, two filter plates 1 have filter holes, and are bonded with filter materials, and the two filter plates 1 are installed on At the front and back positions, the four mounting plates 2 are respectively installed at the four positions of up, down, left, and right between the two filter plates 1 . Between the filter plate and the mounting plate 2, and between the mounting plates 2 are detachably assembled together by bolts or screws.

[0091] Both the filter plate 1 and the mounting plate 2 are made of stainless steel, an...

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Abstract

The invention discloses an efficient filter shell of a nuclear power plant and a recycling method thereof. The recycling method of the efficient filter shell of the nuclear power plant comprises the following steps of: disassembling a filter plate and mounting plate on a used efficient filter shell; peeling off the filter material on the filter plate; respectively measuring the radioactive pollution of the filter plate and mounting plate; if the radioactive pollution of the filter plate is less than a release value, adhering the filter plate with a new filter material to assemble into a new efficient filter shell for repeated use; If the radioactive pollution of the mounting plate is less than a release value, assembling the mounting plate into a new efficient filter shell for repeated use. The cost of inventory and replacement is saved, the production period is shortened, and the production efficiency is improved; the efficient filter shell is repeatedly utilized, so that the volume of radioactive wastes can be reduced, the environmental benefit and the responsibility for society can be fully embodied, and certain economic benefits can be generated; meanwhile, the method has important significance for protecting environment and reducing radioactive pollution.

Description

technical field [0001] The invention relates to repeated recycling of nuclear power plant spare parts, in particular to a nuclear power plant high-efficiency filter shell and a method for recycling the same. Background technique [0002] A nuclear power plant, also known as a nuclear power plant, is a power plant that uses the energy released by nuclear fission (Nuclear Fission) or nuclear fusion (Nuclear Fusion) reactions to generate electricity. Nuclear power plants currently in commercial operation use nuclear fission reactions to generate electricity. Nuclear power plants are generally divided into two parts: nuclear islands that use nuclear fission to produce steam (including reactor devices and primary loop systems) and conventional islands that use steam to generate electricity (including turbogenerator systems). The fuel used is generally radioactive heavy metals: uranium, plutonium. [0003] The energy released during the fission process of nuclear fuel, through t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G21F9/02G21F9/00
CPCG21F9/00G21F9/02
Inventor 邓才远恽健刘震孙晓坤张伟李博
Owner LINGDONG NUCLEAR POWER
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