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An intelligent safety management system and method for radiographic flaw detection operations in nuclear power plants

A radiographic flaw detection and safety management technology, applied in radio wave measurement systems, satellite radio beacon positioning systems, instruments, etc., can solve the problems of out of control radioactive sources, mistaken exposure of personnel, and excessive dose rate at the boundary of flaw detection operations, and achieve enhanced monitoring. strength, and the effect of improving the level of safety management

Active Publication Date: 2021-06-25
中广核工程有限公司 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, there are too many items that require manual inspection and confirmation in the safety management of radiographic flaw detection operations in nuclear power plants, and there are very few automated and intelligent safety management equipment or software; Serious radiation protection incidents such as exceeding standards and accidental exposure of personnel

Method used

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  • An intelligent safety management system and method for radiographic flaw detection operations in nuclear power plants
  • An intelligent safety management system and method for radiographic flaw detection operations in nuclear power plants
  • An intelligent safety management system and method for radiographic flaw detection operations in nuclear power plants

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Embodiment 1

[0031] An embodiment of the present invention provides an intelligent safety management system for radiographic flaw detection operations, see figure 1 , the device includes: a radioactive source canister GPS positioning device 100, a GPS positioning device is bound to each radioactive source canister in the radiographic flaw detection operation. The GPS positioning device 100 sends data such as "device identification" and "GPS coordinates" to the network server at specific time intervals through wireless communication methods such as GPRS / WIFI / NB-IOT / LoRa according to preset programs. The server (monitoring platform 300) judges whether the active area of ​​the radioactive source canister conforms to the preset range according to the information sent by the GPS positioning device. If it exceeds the specified range, an alarm message will be sent to emergency personnel by phone, text message or broadcast. At the same time, security monitoring personnel can also observe the curr...

Embodiment 2

[0045] The implementation of the present invention provides an intelligent safety management method for radiation flaw detection operations in nuclear power plants, which is applicable to the system shown in Embodiment 1, see Figure 7 For the functional linkage flow chart of the intelligent safety management system for radiographic flaw detection operations, the boundary dose rate automatic measurement equipment is arranged in important positions such as the center of the operation area, the passageway of the operator, and the main entrance and exit, which is responsible for real-time measurement of the radiation boundary dose rate at the location; judging when the boundary dose rate exceeds After the preset value, the automatic GPS coordinate collection device of radioactive source tanks is automatically used to obtain the GPS coordinates of nearby radioactive source tanks, and the collected information is sent to the WEB real-time monitoring platform for highlight display, in...

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Abstract

The invention provides an intelligent safety management system and method for nuclear power plant radiographic flaw detection operations, using a GPS coordinate automatic collection device to monitor the GPS coordinate data of radioactive source tanks in real time, using a boundary dose rate automatic measurement device to monitor the boundary dose rate of the flaw detection operation area in real time, and monitoring platform If it is judged that the real-time detected data exceeds the preset value, locate the coordinate position of the radioactive source tank and send an alarm message, and authorize relevant personnel to process the radioactive source tank according to the authorization request. The monitoring platform is also used to release the GPS positioning monitoring and boundary dose rate detection alarm for the removed radioactive source canister after the relevant personnel remove the radioactive source canister with excessive radiation. Through the management system constituted by the above-mentioned device, the present invention makes up for the shortage of human defense measures in the safety management of radiographic flaw detection, greatly reduces the possibility of major accidents caused by human errors, and improves the reliability of safety management of flaw detection operations.

Description

technical field [0001] The invention relates to the technical field of nuclear industry safety and is used for improving the level of radiographic inspection safety management technology prevention, in particular to an intelligent safety management system and method for radiographic inspection operations in nuclear power plants. Background technique [0002] As a non-destructive testing method in nuclear power plants, radiographic testing is widely used in industry, and can be used for internal defects, such as pores, pinholes, inclusions, porosity, cracks, segregation, incomplete penetration and insufficient fusion, etc. X-ray inspection. When a ray beam with uniform intensity irradiates an object, if there are defects or structural differences in the local area of ​​the object, it will change the attenuation of the ray by the object, so that different parts of the transmitted ray have different intensities. The film is used in photography) to detect the intensity of the t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01T1/02G01S19/14G07C9/00
CPCG01S19/14G01T1/02G07C9/00571
Inventor 牟云飞黎学铭李长海靳孝义
Owner 中广核工程有限公司