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Composite laser decontamination device and method for radioactive decontamination of nuclear power plant components

A technology for decontamination devices and nuclear power plants, which is used in radioactive purification, measurement devices, nuclear engineering, etc., and can solve problems such as difficulty in achieving decontamination effects and single laser decontamination technology.

Active Publication Date: 2018-09-28
SUZHOU NUCLEAR POWER RES INST +2
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In the prior art, laser decontamination is generally used, but a single laser decontamination technology is used. The same laser is used for decontamination treatment on the body of the part to be decontaminated and the attachment on the body, and it is difficult to achieve the ideal decontamination effect

Method used

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  • Composite laser decontamination device and method for radioactive decontamination of nuclear power plant components
  • Composite laser decontamination device and method for radioactive decontamination of nuclear power plant components
  • Composite laser decontamination device and method for radioactive decontamination of nuclear power plant components

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Embodiment 1

[0048]In one embodiment of the present invention, a compound laser decontamination device is provided, comprising a first laser emitting module, a second laser emitting module, and a beam shaping module corresponding to the laser emitting modules (including the first beam shaping module 61 and the second beam shaping module 62), and a laser shaping module 2. Described laser emission mode has following two kinds: one, the laser light emitted by the first laser emission module enters the first beam shaping module 61 to carry out beam shaping (by the shaping process of laser point to laser line), then enters described laser shaping module 2. Carry out laser shaping (shaping treatment from the laser line to the laser surface), and finally output to the surface of the base layer 1 to be decontaminated of the nuclear power plant components; second, the laser emitted by the second laser emitting module enters the second beam shaping module 62 for beam Reshaping (reshaping from laser ...

Embodiment 2

[0062] In one embodiment of the present invention, a kind of decontamination method of composite laser decontamination device is provided, see figure 2 , the comprehensive method includes the following steps:

[0063] S11. Detect the condition of surface attachments on the substrate to be decontaminated, and match the corresponding laser emission module.

[0064] Specifically, if an attachment is detected on the surface of the substrate to be decontaminated, match a laser emitting module with a longer pulse width; if there is no attachment, then match a laser emitting module with a shorter pulse width according to whether it is a decommissioned component.

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Abstract

The invention discloses a composite laser decontamination device and method for radioactive decontamination of nuclear power plant components. The composite laser decontamination device comprises at least two laser emission modules, light beam shaping modules which are in one-to-one correspondence with the laser emitting modules, and a laser shaping module, wherein the laser emitted by the laser emitting module enters the corresponding beam shaping module for beam shaping, and then enters the laser shaping module for laser shaping, finally is output to the surface of the to-be-decontaminated base layer of the nuclear power plant component, wherein the pulse width of the laser emitted by each laser emitting module is different, and a corresponding laser emission module is determined to openaccording to the surface attachment condition of the to-be-decontaminated base layer. The novel composite laser decontamination solution is provided for nuclear power station decontamination, and a corresponding laser emitting module is selected and opened according to the actual situation of the to-be-decontaminated surface.

Description

technical field [0001] The invention relates to the field of radioactive decontamination in the nuclear industry, in particular to a composite laser decontamination device and method for radioactive decontamination of nuclear power plant components. Background technique [0002] During the operation of nuclear power plants, the corrosion products of structural materials and the primary coolant are activated by neutrons to form radioactive substances, which are transmitted, distributed, and deposited on the surfaces of pipes, valves, and pumps in the system. With the increase of the service time of nuclear power plants, the accumulation of these radioactive materials increases day by day, which leads to the enhancement of the radiation field of the system and the increase of the radiation dose of the staff. Therefore, regular or irregular radioactive decontamination is required to ensure the safe operation of the power station and reduce the collective radiation dose of opera...

Claims

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Application Information

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IPC IPC(8): G21F9/30G21F9/32G01N21/71G01N21/88G01N29/04
CPCG01N21/718G01N21/88G01N29/041G21F9/30G21F9/32G01N21/94G01N29/07G01N29/4427G01N2291/0256G01N2291/0258G21F9/005G21F9/28
Inventor 魏少翀陈国星吴树辉马学英陆海峰潘晨阳黄骞王博尹嵩覃恩伟叶林刘艺武史一岭
Owner SUZHOU NUCLEAR POWER RES INST
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