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Radioactive wastewater adsorption filter

A radioactive waste water and filter technology, applied in radioactive purification, nuclear engineering, etc., can solve the problems of insufficient radionuclide adsorption, troublesome and inconvenient filter bag replacement operation, and achieve quick and convenient replacement operation, improved removal rate, The effect of reducing human radiation

Active Publication Date: 2012-08-01
SUZHOU NUCLEAR POWER RES INST +2
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In the radioactive wastewater adsorption filter used in the existing fixed treatment or emergency treatment system, the contact time between the filter material and the radioactive wastewater is relatively short, which easily leads to insufficient adsorption of radionuclides by the filter material, and the existing filter contains The replacement of the filter bag of the filter material is troublesome and inconvenient

Method used

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  • Radioactive wastewater adsorption filter

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Embodiment Construction

[0011] The structure of the present invention will be further described below in conjunction with the accompanying drawings.

[0012] see figure 1 , an adsorption filter for radioactive waste water, comprising a cylinder body 2, a top cover 7, an annular retention plate 6, a fixed frame 3, a compressible coupling layer 4, a filter bag 5, and a compression assembly 15, and the top of the cylinder body 2 is open , which has a top opening 8, the top cover 7 can quickly close or open the top opening 8 of the cylinder 2, in figure 1 Among them, the top cover 7 and the cylinder body 2 are connected by a quick release buckle 10 . The cylinder 2 has a water inlet 12 on the upper part of the side, and a water outlet 1 on the bottom. The radioactive waste water enters from the water inlet 12 of the cylinder 2. After the nuclides in the wastewater are absorbed, the water after removing the nuclides flows out of the water outlet 1. flow out. exist figure 1 Among them, the out...

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Abstract

The invention discloses a radioactive wastewater adsorption filter. The operation of replacing a filter bag is rapid and convenient; a compressing assembly is automatically loosened only by opening a top cover; after the compressing assembly is taken away, the filter bag filled with a filter material is rapidly lifted out from the upper part and a new filter bag with the filter material is put in again; and then, the compressing assembly is put back, the top cover is closed and the new absorption can be started. The filter bag is rapidly replaced to reduce the radiation on personnel to a maximum extent. Aiming at special nuclides, the filter bag with a characteristic absorption material is chosen or replaced, so that the removal rate of radioactive nuclides can be effectively improved. In addition, in an adsorber, a coupling layer capable of being compressed surrounds and tightly covers the external side face of the filter bag, so that the radioactive wastewater flows through the filter bag from top to bottom after entering a drum body via a water inlet at the upper part, and flows out of drain meshes at the bottom of the filter bag and the bottom of a fixing frame; the outflow at the side face of the filter bag is avoided, that is, the short-circuit current is avoided; the radioactive wastewater sufficiently flows through the filter bag from top to bottom, so that the nuclides in the wastewater are completely adsorbed by the filter material in the filter bag and the nuclides in the wastewater are removed thoroughly.

Description

[0001] technical field [0002] The invention relates to a radioactive waste water adsorption filter. Background technique [0003] The radioactive waste water in the main circuit of nuclear power plants is usually treated by bypass purification, and the treated clean water is returned to the main circuit system. Some radioactive wastewater will also be discharged when the reactor is started and shut down, and equipment and personnel are decontaminated. This wastewater is usually collected and treated by the fixed radioactive wastewater treatment system of the nuclear power plant before being discharged. When the wastewater treatment system of a nuclear power plant fails or the main circuit system leaks a small amount due to accidents, a small amount of radioactive wastewater will be released. After the wastewater is collected, it needs to be treated by a temporary (emergency) treatment device; For radioactive waste water, due to nuclide changes and low content, there are s...

Claims

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Application Information

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IPC IPC(8): G21F9/12
Inventor 李新民刘勇
Owner SUZHOU NUCLEAR POWER RES INST
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