Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method for recycling pre-filter frame of nuclear power plant

A pre-filter and nuclear power plant technology, which is applied in nuclear engineering, radioactive purification, etc., can solve the problems that the filter recycling method cannot be applied, and achieve the effects of shortening the production cycle, reducing the volume, and reducing radioactive pollution

Pending Publication Date: 2019-01-25
LINGDONG NUCLEAR POWER +5
View PDF5 Cites 4 Cited by
  • 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 plant with radioactive contamination particles

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for recycling pre-filter frame of nuclear power plant
  • Method for recycling pre-filter frame of nuclear power plant
  • Method for recycling pre-filter frame of nuclear power plant

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] This embodiment provides a method for reusing the pre-filter frame of a nuclear power plant. The used waste pre-filter frame is stripped of the filter material, and then the radioactive contamination is measured. For the uncontaminated or less polluted pre-filter Frames are reused.

[0038] The pre-filter in this embodiment is a pre-air filter, which is installed in the ventilation system of a nuclear power plant to filter radiation pollution. Such as figure 1 As shown, the pre-filter includes a pre-filter frame and a filter material, the pre-filter frame is a filter screen frame, the filter material is adhered to the filter screen frame, and the filter material is used to absorb radiation pollution particles, and the pre-filter frame supports the installation role.

[0039] The pre-filter frame of this embodiment is improved, and the pre-filter frame is made of 304 stainless steel, and requires a cycle that can be used for 5 years, and has the conditions for repeated...

Embodiment 2

[0063] Such as Figure 4 As shown, the method for reusing the nuclear power plant pre-filter frame provided by this embodiment includes the following steps:

[0064] S201: peel off the pre-filter frame and filter material;

[0065] Peel off the bonded pre-filter frame and filter material that need to be replaced after filtration. The stripping environment must be carried out in a room or equipment with negative pressure. Radioactive dust during the stripping process can be prevented in a negative pressure environment. Overflow, due to the filter material is firmly bonded to the pre-filter frame. Moreover, the filter frame structure is simple, and the bonded filter material is directly peeled off by heating with a heater, and the filter material is put into a 208L metal container. Finally clean the pre-filter frame.

[0066] S202: Measure radioactive contamination;

[0067] The measurement of the radioactive contamination of the pre-filter frame mainly measures the β surfac...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a method for recycling a pre-filter frame of a nuclear power plant, which comprises the following steps of: peeling off the used pre-filter frame and filter material; measuringthe radioactive contamination of the pre-filter frame; if the radioactive contamination of the pre-filter frame is less than a release value, bonding the pre-filter frame with a new filter material for recycling. Because the filter material which is polluted by filtering is peeled off from the pre-filter frame, the radioactive contamination of the pre-filter frame is measured, and the pre-filterframe with a radioactive contamination without exceeding a release value can be recycled, the pre-filter frame which is not radioactively polluted or has less pollution can be recycled, inventory andreplacement costs of spare parts are saved, the production cycle is shortened and the production efficiency is improved; the pre-filter frame is recycled, the volume of the radioactive waste can be reduced by about 80%, the environmental benefit and the responsibility for the 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 recovery and utilization of nuclear power plant spare parts, in particular to a method for repeated utilization of a nuclear power plant pre-filter frame. 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, throu...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
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
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com