Shell reusable nuclear grade HEPA filter

Abstract

The invention discloses a casing reusable nuclear-grade high-efficiency air filter, which belongs to the technical field of nuclear-grade air filters. The key points of the technical solution of the present invention are: the casing reusable nuclear-grade high-efficiency air filter, including the casing and the filter element arranged inside the casing, the filter element and the casing are assembled by screwing, riveting or bonding, and the casing is made of metal Plate welded or riveted formed cavity through the front and back, the filter element is composed of cladding material and filter material, wherein the front and rear sides of the cladding material are respectively provided with through holes distributed in parallel, and the inner side of the cladding material opposite to the through hole passes through The sealant is bonded with the filter material. The invention only needs to replace the filter element, and the shell can continue to be used, which reduces the waste discharge of the filter, and the filter element can be compressed as a whole, which saves the dismantling work of the waste filter, reduces labor costs, and avoids man-made risks.

Description

technical field [0001] The invention belongs to the technical field of nuclear-grade air filters, and in particular relates to a casing reusable nuclear-grade high-efficiency air filter. Background technique [0002] For nuclear engineering, various nuclear facilities will inevitably produce radioactive waste. In order to ensure that radioactive substances are not released into the natural environment, radioactive waste must be treated reasonably. At present, the steps to deal with the waste high-efficiency air filters in nuclear engineering are still manual dismantling, overpressure packaging, and deep burial. The main problems in this process are: 1. The waste generated by the filter is large; 2. Manual dismantling of waste filters is difficult and wastes a lot of manpower; 3. Waste filters contaminated by radioactivity may cause harm to the human body during manual dismantling; 4. The filter element of the high-efficiency air filter is made of ultrafine The filter paper ...

AI Technical Summary

Problems solved by technology

At present, the steps to deal with the waste high-efficiency air filters in nuclear engineering are still manual dismantling, overpressure packaging, and deep burial. The main problems in this process are: 1. The waste generated by the filter is large; 2. Manual dismantling of waste filters is difficult and wastes a lot of manpower; 3. Waste filters contaminated by radioactivity may cause harm to the human body during manual dismantling; 4. The filter element of the high-efficiency air filter is made of ultrafine The filter paper made of glass fiber filaments, in the process of manual disassembly, the filter paper is violently torn and thrown, resulting in fine glass fiber filaments floating in the working area. If workers do not protect their breathing properly, these fine glass fibers will be Human inhalation becomes a health hazard

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