On-site material detection device and detection method for metal material in high-radiation area

By designing a metal material field material detection device for high-radiation areas, using wireless movable detection devices and remote control systems, the problem of detection in medium and high-radiation areas of nuclear power plants is solved, and a safe and efficient detection process is achieved.

CN120102612APending Publication Date: 2025-06-06CHINA NUCLEAR POWER OPERATION TECH CORP +1
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Patent Information

Application Number
CN202510274678.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-03-10
Publication Date
2025-06-06

AI Technical Summary

Technical Problem

On-site material testing of metal materials in medium and high radiation areas of nuclear power plants is difficult to achieve, resulting in the need of detecting personnel to enter the radiation area and increase the radiation dose and safety hazards.

Method used

A high-dose area metal material field material detection device is designed, including a wireless movable detection device, a grinding robot arm, a steel wire polishing ball, a robot arm and an X-ray fluorescence spectrum integrated detection device, and is detected in a high-radiation area through a computer remote control device.

Benefits of technology

On-site material inspection of metal materials in high-radiation areas is realized, and the inspectors do not need to enter the radiation area, which reduces the radiation dose and contamination risks of personnel and improves detection safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the field of radiation field material detection, in particular to a high-radiation area metal material field material detection device and a high-radiation area metal material field material detection method.The device comprises a wireless movable detection device, a polishing mechanical arm, a steel wire polishing ball, a mechanical arm and an X-ray fluorescence spectrum integrated detection device; the wireless movable detection device can freely move on the ground and is connected with one end of the polishing mechanical arm and one end of the mechanical arm, a steel wire polishing ball is arranged at the other end of the polishing mechanical arm, and the X-ray fluorescence spectrum integrated detection device is arranged at the other end of the mechanical arm. According to the method, the steel wire grinding ball is arranged to achieve grinding and rust removal of the metal part to be detected, the X-ray fluorescence spectrum integrated detection device is arranged to achieve the chemical component detection function, detection work is completed on the premise that a detector does not enter a high-dose radiation control area, and the risk that the detector bears high-dose radiation and is contaminated is avoided.
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Description

Technical Field

[0001] The present invention relates to the field of radiation on-site material detection, and in particular to an on-site material detection device and a detection method for metal materials in high-radiation areas. Background Art

[0002] Due to the lack of original data, it is often necessary to conduct on-site material testing of metal parts during the maintenance of nuclear power plant equipment in order to facilitate subsequent maintenance work such as welding. The portable alloy analyzer is an instrument that uses X-ray fluorescence spectroscopy to analyze the composition of various alloys. The equipment measures the content of each chemical element in the metal material and determines the grade of the metal material. Due to its small size, convenient testing, and non-destructive testing, it is widely used in nuclear power sites, but the instrument requires on-site operation by staff.

[0003] Due to the special nature of nuclear power plants, there are radiation control areas. Personnel are prohibited from entering high-radiation areas, making it impossible to carry out on-site material testing work normally. In addition, when working in areas with loose radioactive contaminants, personnel are at risk of contamination, resulting in internal and external exposure, which poses certain safety hazards. In the prior art, there is a lack of a method for remotely controlling equipment to complete on-site material testing, which can allow testers to stay away from radiation areas and reduce their radiation dose. Summary of the invention

[0004] The present invention provides an on-site material detection device and method for metal materials in high-radiation areas, which are used to solve the problem that the prior art lacks remote on-site material detection means for metal materials, resulting in a high radiation dose to the bodies of detection personnel.

[0005] The technical solution of the present invention is as follows:

[0006] The present invention proposes an on-site material detection device for metal materials in high-dose areas, which includes a wireless movable detection device, a grinding robot arm, a steel wire grinding ball, a robot arm and an X-ray fluorescence spectrum integrated detection device. The wireless movable detection device can move freely on the ground, and the wireless movable detection device is respectively connected to the grinding robot arm and one end of the robot arm. The other end of the grinding robot arm is provided with a steel wire grinding ball, and the other end of the robot arm is provided with an X-ray fluorescence spectrum integrated detection device.

[0007] In some embodiments, the wireless movable detection device is made of 304 stainless steel, and track wheels are provided at the bottom of the wireless movable detection device. The wireless movable detection device is connected to a computer via a wireless network, and the computer can remotely control the device to perform various functions within a range of 40 meters.

[0008] In some embodiments, a light source and a camera are provided at the front end of the wireless movable detection device, and a computer controls the light source and the camera through a wireless network. The computer can observe the field of view within a range of 10 meters in front of the device through the camera.

[0009] In some embodiments, the grinding robot arm and the mechanical arm can rotate 360 ​​degrees in all directions. The wire grinding ball has a diameter of 3 cm and is made of 304 stainless steel. The wire grinding ball and the grinding robot arm are connected in a detachable manner. The grinding robot arm grinds the object to be measured by rotating the wire grinding ball.

[0010] In some embodiments, a detection probe is provided at the top of the X-ray fluorescence spectrum integrated detection device. The detection probe has a diameter of 1 cm and a built-in detection camera. The detection probe can observe an area of ​​1 cm. 2 detection area.

[0011] In some embodiments, the computer controls the movement of the wireless movable detection device, the extension of the robotic arm and the grinding robotic arm, the rotation of the wire grinding ball, and the switching of the X-ray fluorescence spectrometry integrated detection device; the computer can collect data and images of the X-ray fluorescence spectrometry integrated detection device.

[0012] The present invention proposes a method for on-site material detection of metal materials in a high-dose area, the method comprising:

[0013] Step 1: The staff divides the equipment operation area and high radiation area and debugs the equipment;

[0014] Step 2: The staff controls the device to enter the high radiation area;

[0015] Step 3: The device searches for and determines the object to be inspected;

[0016] Step 4: The device grinds and removes rust on the surface of the object to be inspected;

[0017] Step 5: The device performs detection;

[0018] Step 6: The staff will analyze the inspection results and recover the device.

[0019] In some embodiments, step one specifically includes:

[0020] Step 1.1: The staff used a radiation dose meter to measure the environmental dose rate and selected the area with an environmental dose rate lower than 0.1μSv / h as the operating area. The area of ​​the operating area was 10m 2 ;

[0021] Step 1.2: The staff uses a radiation dose meter to measure the environmental dose rate, sets the area where the environmental dose rate around the object to be inspected is greater than 20μSv / h as a high radiation area, and arranges an isolation warning belt;

[0022] Step 1.3: The staff connects the device to the computer via the wireless network in the operation area, uses the computer and performs debugging to ensure that the device moves normally, the device's light source, camera, robotic arm, grinding robotic arm, wire grinding ball and X-ray fluorescence spectrum integrated detection device work normally, and the device's data transmission and video imaging functions are normal.

[0023] In some embodiments, step 4 specifically includes: the staff controls the grinding robot arm to rotate the steel wire grinding ball to grind the detection area on the surface of the object to be inspected, and the single grinding time is 10 seconds, so that the detection area reveals the metallic luster, and ensures that the detection area is free of rust, coating and ash; for the flat object to be inspected, the grinding detection area should be no less than 2*2cm 2 Square area: For linear objects to be inspected, the diameter of the polished inspection area should be no less than 0.2cm and the width should be no less than 2cm.

[0024] In some embodiments, step five specifically includes:

[0025] Step 5.1: The staff controls the robot arm to adjust the position of the X-ray fluorescence spectrum integrated detection device so that the detection probe of the X-ray fluorescence spectrum integrated detection device is closely attached to the detection area of ​​the surface of the object to be detected;

[0026] Step 5.2: The staff observes the detection area covered by the detection probe through the built-in detection camera of the detection probe to see whether the detection area is completely exposed to metallic luster, and ensures that there are no impurities in the detection area. If there are impurities in the detection area, step 4 needs to be repeated; for linear objects to be inspected, the detection area is located through the center area of ​​the detection probe to ensure that the X-rays excited by the X-ray fluorescence spectrum integrated detection device can irradiate the detection area;

[0027] Step 5.3: The staff remotely turns on the X-ray fluorescence spectrum integrated detection device through the computer and performs chemical composition detection on the object to be tested. Each object to be tested is tested three times, and each test takes more than 20 seconds;

[0028] Step 5.4: Compare the three test results to ensure that the deviation of the content of each chemical element in the three test results of the object to be tested should not exceed 5%; if the deviation of the content of each chemical element in the object to be tested exceeds 5%, retest the object to be tested until the deviation of the content of each chemical element in the object to be tested is within 5%.

[0029] The implementation of the present invention has the following beneficial effects:

[0030] The present invention proposes an on-site material detection device and a detection method for metal materials in high-radiation areas. This method adopts a computer-controlled detection device, remotely operates to realize the on-site material detection function in high-radiation areas, remotely controls the mobile detection device through a wireless network, and realizes the grinding and rust removal of the metal parts to be inspected by setting a steel wire grinding ball. The chemical composition detection function is realized by setting an X-ray fluorescence spectrum integrated detection device. The detection work is completed under the premise that the detection personnel do not enter the high-dose radiation control area, thereby avoiding the risk of high-dose radiation and contamination for the personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 The embodiment of the present invention is proposed Figure 1 Schematic diagram of on-site material detection device for metal materials in high-dose areas;

[0032] Figure 2 A schematic diagram of the detection area planning of a high-dose area metal material on-site material detection device proposed in an embodiment of the present invention;

[0033] Figure 3 A schematic flow chart of a method for on-site material detection of metal materials in high-dose areas proposed by an embodiment of the present invention;

[0034] Description of the drawings: 1. Wireless movable detection device; 2. Light source; 3. Camera; 4. Polishing robot arm; 5. Wire polishing ball; 6. Robotic arm; 7. X-ray fluorescence spectrum integrated detection device; 8. Computer. DETAILED DESCRIPTION

[0035] The technical solution of the present invention is described clearly and completely below in conjunction with the accompanying drawings and specific implementation methods. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] like Figures 1 to 3 As shown, the present invention proposes an on-site material detection device for metal materials in high-dose areas, the device comprising a wireless movable detection device 1, a grinding mechanical arm 4, a steel wire grinding ball 5, a mechanical arm 6 and an X-ray fluorescence spectrum integrated detection device 7, the wireless movable detection device 1 can move freely on the ground, the wireless movable detection device 1 has a built-in battery, the main body material is 304 stainless steel, can be connected to a computer 8 via a wireless network, can remotely control the device to perform various functions within a range of 40 meters, the wireless movable detection device is provided with track wheels, and can move smoothly on the ground through the track wheels, the wireless movable detection device is equipped with a light source 2 and a camera 3, the field of view within a range of 10 meters in front of the device can be observed on the computer 8, and the movement of the control device is convenient.

[0037] The wireless movable detection device 1 is connected to one end of the grinding robot arm 4 and the robot arm 6 respectively. The other end of the grinding robot arm 4 is provided with a wire grinding ball 5. The device can grind and remove rust on the surface of the object to be inspected by rotating the wire grinding ball 5. The wire grinding ball 5 has a diameter of 3 cm and is made of 304 stainless steel. The wire grinding ball 5 is replaceable and is easy to replace after being contaminated.

[0038] The other end of the robot arm 6 is provided with an X-ray fluorescence spectrum integrated detection device 7. The X-ray fluorescence spectrum integrated detection device 7 performs on-site material detection by exciting X-rays. A detection probe is provided at the top thereof. The diameter of the detection probe is 1 cm. The detection probe has a built-in detection camera. The detection probe can observe 1 cm 2 The detection area realizes 360-degree all-round detection function through the robot arm 6.

[0039] Computer 8 can control the movement of the device, the extension of the mechanical arm 6, the switching function of the rotating wire grinding ball 5 and the X-ray fluorescence spectrum integrated detection device 7 within a range of 40 meters, and can also transmit images and detection data. Computer 8 can control the switching of the built-in light source 2 and the camera 3, and can collect the image content of the camera 3.

[0040] like Figure 3 As shown, the present invention proposes a method for on-site material detection of metal materials in high-dose areas, the method comprising:

[0041] Step 1: The staff divides the equipment operation area, high radiation area and debugging equipment.

[0042] Step 1.1: The staff used a radiation dose meter to measure the environmental dose rate and selected the area with an environmental dose rate lower than 0.1μSv / h as the operating area. The area of ​​the operating area was 10m 2 .

[0043] Step 1.2: The staff uses a radiation dose meter to measure the environmental dose rate, sets the area where the environmental dose rate around the object to be inspected is greater than 20μSv / h as a high radiation area, and arranges an isolation warning belt.

[0044] Step 1.3: The staff connects the device to the computer 8 via the wireless network in the operation area, uses the computer 8 and performs debugging to ensure that the device moves normally, that the light source 2, camera 3, robotic arm 6, grinding robotic arm 4, wire grinding ball 5 and X-ray fluorescence spectrum integrated detection device 7 of the device work normally, and that the data transmission and video imaging functions of the device are normal.

[0045] Step 2: The staff controls the device to enter the high radiation area.

[0046] Step 3: The device searches for and determines the object to be inspected.

[0047] Step 4: The device grinds and removes rust on the surface of the object to be inspected; specifically, the staff controls the grinding robot arm 4 to rotate the wire grinding ball 5 to grind the inspection area on the surface of the object to be inspected. The single grinding time is 10 seconds. After multiple grindings, the inspection area reveals a metallic luster, ensuring that there is no rust, coating and ash in the inspection area. For the flat object to be inspected, the grinding inspection area should be no less than 2*2cm 2 Square area: For linear objects to be inspected, the diameter of the polished inspection area should be no less than 0.2 cm and the width should be no less than 2 cm to ensure that there is no impurity influence in the inspection probe coverage area of ​​the X-ray fluorescence spectrum integrated detection device 7.

[0048] Step 5: The device performs detection.

[0049] Step 5.1: The staff controls the robot arm 6 to adjust the position of the X-ray fluorescence spectrum integrated detection device 7 so that the detection probe of the X-ray fluorescence spectrum integrated detection device 7 is closely attached to the detection area on the surface of the object to be detected.

[0050] Step 5.2: The staff observes the detection area covered by the detection probe through the built-in detection camera of the detection probe to see whether the detection area has all the metallic luster, and ensures that there are no impurities in the detection area. If there are impurities in the detection area, step 4 needs to be re-executed; for linear objects to be inspected, the detection area is positioned through the center area of ​​the detection probe to ensure that the X-rays excited by the X-ray fluorescence spectrum integrated detection device 7 can irradiate the detection area.

[0051] Step 5.3: The staff remotely turns on the X-ray fluorescence spectrum integrated detection device 7 through the computer 8, and performs chemical composition detection on the object to be detected. Each object to be detected is tested three times, and a single test takes more than 20 seconds to ensure that the detection data is stable.

[0052] Step 5.4: Compare the three test results to ensure that the deviation of the content of each chemical element in the three test results of the object to be tested should not exceed 5%; if the deviation of the content of each chemical element in the object to be tested exceeds 5%, retest the object to be tested until the deviation of the content of each chemical element in the object to be tested is within 5%.

[0053] Step 6: The staff will analyze the inspection results and recover the device.

[0054] The above embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the attached claims.

Claims

1. A high-dose area metal material on-site material detection device, characterized in that: The device comprises a wireless movable detection device (1), a grinding robot arm (4), a steel wire grinding ball (5), a robot arm (6) and an X-ray fluorescence spectrum integrated detection device (7); the wireless movable detection device (1) can move freely on the ground; the wireless movable detection device (1) is respectively connected to one end of the grinding robot arm (4) and the robot arm (6); the other end of the grinding robot arm (4) is provided with a steel wire grinding ball (5); and the other end of the robot arm (6) is provided with an X-ray fluorescence spectrum integrated detection device (7).

2. The on-site material detection device for high-dose area metal materials according to claim 1 is characterized in that: The wireless movable detection device (1) is made of 304 stainless steel. A crawler wheel is provided at the bottom of the wireless movable detection device (1). The wireless movable detection device (1) is connected to a computer (8) via a wireless network. The computer (8) remotely controls the device within a range of 40 meters to perform on-site material detection of metal materials.

3. The on-site material detection device for high-dose area metal materials according to claim 2 is characterized in that: The front end of the wireless movable detection device (1) is provided with a light source (2) and a camera (3); the computer (8) controls the light source (2) and the camera (3) via a wireless network; the computer (8) can observe a field of view within a range of 10 meters in front of the device through the camera (3).

4. The on-site material detection device for metal materials in high-dose areas according to claim 3 is characterized in that: The polishing robot arm (4) and the robot arm (6) can rotate 360 ​​degrees in all directions. The steel wire polishing ball (5) has a diameter of 3 cm and is made of 304 stainless steel. The steel wire polishing ball (5) is connected to the polishing robot arm (4) in a detachable manner. The polishing robot arm (4) polishes the object to be measured by rotating the steel wire polishing ball (5).

5. The on-site material detection device for high-dose area metal materials according to claim 1 is characterized in that: The X-ray fluorescence spectrum integrated detection device (7) is provided with a detection probe at the top, the detection probe has a diameter of 1 cm, the detection probe has a built-in detection camera, and the detection probe has an observable area of ​​1 cm 2 detection area.

6. The on-site material detection device for high-dose area metal materials according to claim 2 is characterized in that: The computer (8) controls the wireless movable detection device (1) to move and extend the mechanical arm (6) and the grinding mechanical arm (4), rotate the wire grinding ball (5), and switch the X-ray fluorescence spectrum integrated detection device (7); the computer (8) can collect data and images of the X-ray fluorescence spectrum integrated detection device (7).

7. A method for on-site material detection of metal materials in high-dose areas according to any one of claims 1 to 6, characterized in that: The method comprises: Step 1: The staff divides the equipment operation area and the high radiation area, and debugs the device; Step 2: The staff controls the device to enter the high radiation area; Step 3: The device searches for and determines the object to be inspected; Step 4: The device performs grinding and rust removal on the surface of the object to be inspected; Step 5: the device performs detection; Step 6: The staff analyzes the inspection results and recovers the device.

8. The method for on-site material detection of metal materials in high-dose areas according to claim 7, characterized in that: The step 1 specifically includes: Step 1.1: The staff used a radiation dose meter to measure the environmental dose rate and selected the area with an environmental dose rate lower than 0.1 μSv / h as the operating area. The area of ​​the operating area was 10 m 2 ; Step 1.2: The staff uses a radiation dose meter to measure the environmental dose rate, sets the area where the environmental dose rate around the object to be inspected is greater than 20μSv / h as a high radiation area, and arranges an isolation warning belt; Step 1.3: The staff connects the device to a computer (8) via a wireless network in the operation area, uses the computer (8) and performs debugging to ensure that the device moves normally, the light source (2), camera (3), robotic arm (6), grinding robotic arm (4), wire grinding ball (5) and X-ray fluorescence spectrum integrated detection device (7) of the device operate normally, and the data transmission and video imaging functions of the device are normal.

9. The method for on-site material detection of metal materials in high-dose areas according to claim 7, characterized in that: The step 4 specifically includes: the staff controls the grinding robot arm (4) to rotate the wire grinding ball (5) to grind the detection area on the surface of the object to be inspected, and the single grinding time is 10 seconds, so that the detection area reveals the metallic luster, and ensures that the detection area is free of rust, coating and ash layer; for the object to be inspected that is a flat object, the grinding detection area should be no less than 2*2cm 2 Square area: For linear objects to be inspected, the diameter of the polished inspection area should be no less than 0.2cm and the width should be no less than 2cm.

10. The method for on-site material detection of metal materials in high-dose areas according to claim 7, characterized in that: The step five specifically includes: Step 5.1: The staff controls the robot arm (6) to adjust the position of the X-ray fluorescence spectrum integrated detection device (7) so that the detection probe of the X-ray fluorescence spectrum integrated detection device (7) is in close contact with the detection area on the surface of the object to be detected; Step 5.2: The staff observes the detection area of ​​the detection probe through the built-in detection camera of the detection probe to see whether the detection area has all the metallic luster, and ensures that there are no impurities in the detection area. If there are impurities in the detection area, step 4 needs to be performed again; for linear objects to be inspected, the detection area is positioned through the center area of ​​the detection probe to ensure that the X-rays excited by the X-ray fluorescence spectrum integrated detection device (7) can irradiate the detection area; Step 5.3: The staff remotely turns on the X-ray fluorescence spectrum integrated detection device (7) through the computer (8) and performs chemical composition detection on the object to be detected. Each object to be detected is tested three times, and each test takes more than 20 seconds. Step 5.4: Compare the three test results to ensure that the deviation of the content of each chemical element in the three test results of the object to be tested should not exceed 5%; if the deviation of the content of each chemical element in the object to be tested exceeds 5%, retest the object to be tested until the deviation of the content of each chemical element in the object to be tested is within 5%.