Teleoperation radiation-resistant metal mechanical property test sample preparation system

Abstract

The invention provides a teleoperation radiation-resistant metal mechanical property test sample preparation system, and belongs to the technical field of nuclear industry science, the teleoperation radiation-resistant metal mechanical property test sample preparation system comprises a cutting machine body for preparing and processing all radioactive metal samples, and the preparation system further comprises a purification system installed on the right side of the cutting machine body; the shielding system is mounted on the cutting machine body and the purification system; the cooling system is mounted on the rear side of the purification system; the automatic threading device is mounted on the cutting machine body and is used for providing uninterrupted copper wires for the sample preparation process; and the remote control system is installed at the far end and used for driving the cutting machine body, the purification system, the cooling system and the automatic wire penetrating device and monitoring the operation states of all the systems at the same time. According to the invention, the contradiction between irradiation sample preparation and harm of radioactivity to people and equipment is effectively solved, a radioactive source and an operator as well as the radioactive source and the sample preparation equipment can be isolated, and the operator and the sample preparation equipment are protected from being damaged by radiation.

Description

Technical Field

[0001] The present invention relates to the intersection of nuclear technology application and equipment manufacturing, and in particular to the integrated application of remote operation technology, radiation-resistant material testing and sample preparation technology, and specifically to a remote-operated radiation-resistant metal mechanical property test sample preparation system used in the nuclear industry and radioactive material research field. Background Art

[0002] In the nuclear industry and the field of radioactive material research, the mechanical property testing of radiation-resistant metals is extremely important, which is directly related to the safe operation of nuclear facilities and the long-term storage and utilization of radioactive materials. However, since facilities such as reactors and spallation neutron source target stations produce a large number of high-energy particles, such as neutrons, during operation, these particles can activate structural materials (such as austenitic stainless steel) and release gamma rays. Therefore, in order to accurately evaluate the service life and performance changes of these structural materials after irradiation, it is necessary to cut and process samples in a high radiation environment to prepare samples for mechanical property testing.

[0003] Traditionally, the preparation of samples after irradiation mainly relies on milling, turning and wire EDM. Among them, wire EDM is particularly commonly used in the preparation of irradiated samples due to its advantages such as high sample preparation precision and small size. However, the existing wire EDM technology has significant limitations: on the one hand, these devices usually lack effective protection design against gamma rays, resulting in the inability to effectively isolate the console from the cutting host, and are easily damaged by the gamma rays emitted by the sample; on the other hand, the purification system is not well designed, and it is difficult to effectively handle the pollutants generated during the cutting process, affecting the long-term stable operation of the equipment and the quality of sample preparation.

[0004] In view of the above-mentioned technical difficulties, how to develop a system that can both effectively protect against gamma rays and efficiently prepare samples for testing the mechanical properties of metals after irradiation has become a key issue that needs to be urgently addressed in the nuclear industry and radioactive material research fields. Summary of the invention

[0005] In view of the above problems, the purpose of the present invention is to provide a remote-operated radiation-resistant metal mechanical properties test sample preparation system. Through the innovative design of the remote-operated radiation-resistant metal mechanical properties test sample preparation system, it aims to achieve a perfect combination of remote control, safety protection and high-precision preparation. More specifically, it solves the problem of conventional electric spark wire cutting in the prior art without a design to protect against gamma rays.

[0006] To achieve the above object, the present invention provides the following technical solution: a remote-controlled radiation-resistant metal mechanical properties test sample preparation system, comprising a cutting machine body for preparing and processing all radioactive metal samples, and the preparation system also includes:

[0007] The purification system is installed on the right side of the cutting machine body;

[0008] Shielding system, installed on the cutting machine body and purification system;

[0009] Cooling system, installed behind the purification system;

[0010] Automatic wire threading device, installed on the cutting machine body, and provides uninterrupted copper wire for the sample preparation process;

[0011] The remote control system is installed at the far end and is used to drive the cutting machine body, purification system, cooling system and automatic wire threading device, and monitor the operating status of each system.

[0012] Preferably, the preparation system further comprises a hot chamber and an operating room, and the hot chamber and the operating room are isolated by a shielding wall.

[0013] Preferably, the cutting machine body, purification system, shielding system, cooling system and automatic wire threading device are all arranged in the hot chamber, and the remote control system is arranged in the operating room.

[0014] Preferably, the remote control system is connected to the various systems inside the hot chamber for communication and control via cables and air pipes.

[0015] In the preferred embodiment of the present invention, the cutting machine body includes a base, a displacement platform installed on the top surface of the base, a cutting water trough installed on the top surface of the displacement platform, a wire threading mechanism arranged above the cutting water trough, and an observation camera.

[0016] Preferably, the purification system includes a sewage tank, a clean water tank arranged on one side of the sewage tank, a shielding barrel arranged above the clean water tank, and a pump group arranged behind the shielding barrel.

[0017] Preferably, the purification system further comprises an integrated filter arranged on the top surface of the shielding barrel, and an ion exchanger and a filter element are arranged in sequence from bottom to top inside the shielding barrel;

[0018] The inner wall of the shielding barrel is provided with lead shielding, and the top of the shielding barrel has a hoisting structure.

[0019] Preferably, in this solution, the remote control system includes a control cabinet arranged inside an operating room, and the shielding system includes a motor shield installed above the wire threading mechanism.

[0020] Preferably, in this solution, the cooling system includes a cabinet, a fan arranged inside the cabinet, a controller arranged on the back side of the fan and located on the outer wall of the cabinet, and a heat pipe and a pipeline arranged on one side of the controller.

[0021] In the preferred embodiment of the present invention, the automatic wire threading device includes a wire feeder box, a copper coil arranged at the lower part of the inner cavity of the wire feeder box, a tensioning wheel arranged above the copper coil, a transmission sliding group arranged at the upper part and the outside, a waste wire collector arranged on the cutting water trough, a wire cutter and a new wire connector.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. The remote-operated radiation-resistant metal mechanical property test sample preparation system effectively solves the contradiction between irradiation sample preparation and the harm of radioactivity to people and equipment, and achieves the goals of remote control, safety protection, and high-precision preparation of mechanical property samples. The shielding system provided in the present invention can isolate the radiation source from the operator, the radiation source from the sample preparation equipment, and protect the operator and the sample preparation equipment from radiation damage. The sample preparation system described in the present invention not only meets the sample preparation requirements, but also protects the safety of the operator and the sample preparation equipment, creating excellent technical conditions for the research work of irradiated structural materials.

[0024] 2. The remote-operated radiation-resistant metal mechanical properties test sample preparation system effectively blocks radiation through the shielding system and the lead shielding in the shielding barrel, ensuring the safety of operators and equipment. In the prior art, radiation protection measures may not be perfect and pose safety hazards. The remote control system allows operators to operate in an operating room far away from the radiation source, avoiding direct contact with radioactive materials, further improving safety.

[0025] 3. The remote-operated radiation-resistant metal mechanical properties test sample preparation system has an automatic wire threading device that can continuously provide copper wire, reducing manual intervention and improving cutting efficiency. In the prior art, manual wire threading and replacement of copper wires take a long time, affecting work efficiency. The cutting machine body, purification system, cooling system and remote control system work together to ensure that the entire preparation process is efficient and stable.

[0026] 4. The remote control system of the remote-controlled radiation-resistant metal mechanical properties test sample preparation system can accurately control various parameters of the cutting machine body, such as cutting speed, position of the translation stage, etc., to ensure the accuracy and consistency of sample preparation. In the prior art, manual control may cause cutting errors and affect sample quality. The observation camera monitors the cutting process in real time, and the operator can find and solve problems in time to avoid the production of defective products.

[0027] 5. The remote-operated radiation-resistant metal mechanical properties test sample preparation system and the purification system treat wastewater through a sewage tank, a clean water tank, an integrated filter, an ion exchanger and a filter element. More specifically, the filter and the ion exchanger are integrated into one design. This design scheme can facilitate overall shielded maintenance and improve maintenance efficiency and safety. Reduce maintenance operation time, thereby reducing the radiation dose of personnel. Shielded maintenance can also reduce the dose rate of the radioactive environment, realize the recycling of water resources, and reduce waste. In the prior art, wastewater treatment may not be sufficient, resulting in waste of resources and environmental pollution. The cooling system achieves efficient cooling effect through cabinets, fans, controllers, heat pipes and pipes to ensure that the equipment works at the optimal temperature and extend the life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0029] Figure 1 It is a schematic diagram of the structure of the cutting machine body of the present invention;

[0030] Figure 2 It is a schematic diagram of the purification system structure in the present invention;

[0031] Figure 3 It is a cross-sectional view of the shielding barrel in the present invention;

[0032] Figure 4 It is a schematic diagram of the structure of the remote control system in the present invention;

[0033] Figure 5 A top view of the hot chamber in the present invention;

[0034] Figure 6 It is a schematic structural diagram of the automatic wire threading device in the present invention;

[0035] Figure 7 It is a schematic diagram of the cooling system structure in the present invention;

[0036] Figure 8 It is the general assembly drawing in the present invention.

[0037] In the figure: 1. Cutting machine body; 2. Purification system; 3. Remote control system; 4. Shielding system; 5. Cooling system; 6. Automatic wire threading device; 7. Base; 8. Displacement table; 9. Cutting water tank; 10. Waste wire collector; 11. Wire threading mechanism; 12. Observation camera; 13. New wire connector; 14. Wire cutter; 15. Sewage tank; 16. Clean water tank; 17. Pump group; 18. Shielding barrel; 19. Integrated filter; 20. Ion exchanger; 21. Filter element; 22. Lead shielding; 23. Lifting structure; 24. Hot chamber; 25. Shielding wall; 26. Operating room; 27. Control cabinet; 28. Transmission sliding group; 29. ​​Tensioning wheel; 30. Copper coil; 31. Cabinet; 32. Fan; 33. Controller; 34. Heat pipe; 35. Pipeline; 36. Motor shielding. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not 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.

[0039] Example

[0040] See also Figure 1-Figure 8 The present invention provides the following technical solutions: a remote-controlled radiation-resistant metal mechanical property test sample preparation system, including a cutting machine body 1 for preparing and processing all radioactive metal samples, the preparation system also includes: a purification system 2 installed on the right side of the cutting machine body 1, a shielding system 4 installed on the cutting machine body 1 and the purification system 2, a cooling system 5 installed on the rear side of the purification system 2, an automatic wire threading device 6 installed on the cutting machine body 1, the automatic wire threading device 6 provides uninterrupted copper wire for the sample preparation process, and a remote control system 3 installed at the far end, the remote control system 3 is used to drive the cutting machine body 1, the purification system 2, the cooling system 5 and the automatic wire threading device 6, and monitor the operating status of each system at the same time.

[0041] In this embodiment, the preparation system further includes a hot chamber 24 and an operating room 26 , and the hot chamber 24 and the operating room 26 are isolated from each other by a shielding wall 25 .

[0042] In this embodiment, the cutting machine body 1 , the purification system 2 , the shielding system 4 , the cooling system 5 and the automatic wire threading device 6 are all arranged in the hot chamber 24 , and the remote control system 3 is arranged in the operating room 26 .

[0043] In this embodiment, the remote control system 3 is connected to communicate and control with various systems inside the heat chamber 24 through cables and air pipes.

[0044] In this embodiment, the cutting machine body 1 includes a base 7, a displacement platform 8 installed on the top surface of the base 7, a cutting water trough 9 installed on the top surface of the displacement platform 8, a wire threading mechanism 11 arranged above the cutting water trough 9, and an observation camera 12.

[0045] In this embodiment, the cutting machine body 1 mainly includes a support, an outer cover, a multi-axis motion platform, upper and lower heads, a cutting water tank and a movable door. The support is composed of a casting and a steel plate; the outer cover is composed of a stainless steel sheet metal; the multi-axis motion platform is composed of a servo motor, a coupling, a lead screw mechanism, and a linear guide; the upper and lower heads are composed of a conductive block, a copper wire conduction hole, and a high-pressure water nozzle; the cutting water tank is composed of a stainless steel sheet metal, a decontamination spray pipe, and a sample mounting seat; the movable door is composed of a door handle and a stainless steel sheet metal. The support, the outer cover, the multi-axis motion platform, the upper and lower heads, the cutting water tank and the movable door are mechanically connected and combined into the cutting machine body.

[0046] In this embodiment, the support bracket is composed of cast iron, which needs to be aged for more than 1 year to ensure the stability of the cutting body. The multi-axis motion platform includes at least XYZ three-axis translation; the function of the U / V axis can be added to achieve cutting bevels and cones. The servo motor and sensor are radiation-resistant; the lubricant used is radiation-resistant grease. The stainless steel sheet metal parts are sprayed with Teflon coating on the inside, and the coating thickness is between 8μm-1mm. The door handle is a quick operation structure that can facilitate one-handed operation of the manipulator and achieve water sealing. The integrated filter 19 has an accuracy of less than 5μm; the ion exchanger 20 uses nuclear-grade resin. The integrated filter 19 and the ion exchange 20 can be combined together or arranged separately. The sewage tank 15 and the clean water tank 16 are sprayed with Teflon coating on the inside, and the coating thickness is between 8μm-1mm.

[0047] In this embodiment, the purification system 2 includes a sewage tank 15 , a clean water tank 16 disposed on one side of the sewage tank 15 , a shielding barrel 18 disposed above the clean water tank 16 , and a pump group 17 disposed behind the shielding barrel 18 .

[0048] In this embodiment, the purification system 2 further includes an integrated filter 19 disposed on the top surface of the shielding barrel 18, and an ion exchanger 20 and a filter element 21 are sequentially disposed inside the shielding barrel 18 from bottom to top;

[0049] The inner wall of the shield barrel 18 is provided with a lead shield 22, and the top of the shield barrel 18 has a hoisting structure 23. The sewage tank 15 and the clean water tank 16 are mechanically connected together, and the filter, ion exchanger 20, pump group 17, and valve group are installed on the two water tanks with this as the base, and are connected to the cutting machine body 1 through pipelines to transport clean water, recycle sewage and filter.

[0050] In this embodiment, the remote control system 3 includes a control cabinet 27 disposed inside the operating room 26 , and the shielding system 4 includes a motor shield 36 installed above the wire threading mechanism 11 .

[0051] The remote control system 3 also includes a main controller, a motor driver, a discharge power supply, a long cable, a control console and a cabinet. The main controller, the motor driver, the discharge power supply, the long cable and the control console are assembled into the cabinet 31 through mechanical connection and electrically connected to the main controller 33. The remote control system 3 is characterized in that the total length of the long cable is between 0.5 meters and 30 meters. The remote control system 3 is electrically connected to the cutting machine body 1 to achieve the goal of discharge cutting. The shielding system 4 is mainly composed of a heavy metal cover coated with stainless steel. The gap between the heavy metal cover and the stainless steel is less than 0.1mm, and they are connected by welding. The shielding body system and the shielded object are reliably assembled by mechanical connection. Heavy metals can be made of metal lead, tungsten, and carbon steel. The connection process with the stainless coating surface can be melt casting, plate welding, and bolt connection.

[0052] In this embodiment, the cooling system 5 includes a cabinet 31, a fan 32 disposed inside the cabinet 31, a controller 33 disposed on the back side of the fan 32 and located on the outer wall of the cabinet 31, and a heat pipe 34 and a pipe 35 disposed on one side of the controller 33. The heat pipe 34, the fan 32, and the controller 33 are all mechanically connected in the cabinet 31, and the heat pipe 34 is connected to the inlet and outlet pipes 35, and is connected to the purification system 2 to achieve the function of exchanging heat.

[0053] In this embodiment, the automatic wire threading device 6 includes a wire feeder box, a copper coil 30 arranged at the lower part of the inner cavity of the wire feeder box, a tensioning wheel 29 arranged above the copper coil 30, a transmission sliding group 28 arranged at the upper and outer part, a waste wire collector 10 arranged on the cutting water tank 9, a wire cutter 14 and a new wire connector 13. The wire feeder box and the waste wire collector 10 are independently placed on the side of the cutting machine body 1, and the transmission pulley group 28, the tensioning wheel 29, the copper coil 30, the wire cutter 14 and the new wire connector 13 are mechanically connected to the cutting machine body 1 to realize the transmission and recovery of copper wire.

[0054] In this embodiment, the electrical components mentioned in this article are all connected to an external main controller and 220V AC power, and the main controller can be a conventional known device such as a computer that performs control.

[0055] The working principle and use process of the present invention: When using the remote-controlled radiation-resistant metal mechanical properties test sample preparation system, the operator starts the system through the remote control system 3 to check whether each component is working normally. The sample is placed in the cutting water tank 9, and the displacement table 8 is adjusted to a suitable position. The remote control system 3 controls the cutting machine body 1 to start working, the wire threading mechanism 11 automatically threads the copper wire, and the cutting machine starts cutting the sample. The observation camera 12 monitors the cutting process in real time to ensure the cutting accuracy. The heat generated during the cutting process is taken away by the cooling system 5 to ensure that the equipment temperature is appropriate. The generated wastewater is sent into the sewage tank 15 by the pump group 17, and after purification by the integrated filter 19, the ion exchanger 20 and the filter element 21, it is returned to the cutting water tank 9.

[0056] The used copper wire is cut by the wire cutter 14, the waste wire collector 10 collects the waste wire, and the new wire connector 13 quickly connects the new copper wire to ensure continuous operation. The shielding system 4 and the lead shielding 22 in the shielding barrel 18 effectively block radiation to ensure a safe operating environment.

[0057] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A remote-controlled radiation-resistant metal mechanical properties test sample preparation system, comprising a cutting machine body (1) for preparing and processing all radioactive metal samples, characterized in that: The preparation system also includes: A purification system (2) is installed on the right side of the cutting machine body (1); A shielding system (4) is installed on the cutting machine body (1) and the purification system (2); A cooling system (5) is installed at the rear side of the purification system (2); An automatic wire threading device (6) is mounted on the cutting machine body (1) and provides uninterrupted copper wire for the sample preparation process; The remote control system (3) is installed at the far end and is used to drive the cutting machine body (1), the purification system (2), the cooling system (5) and the automatic wire threading device (6), and monitor the operating status of each system at the same time.

2. A remote-operated radiation-resistant metal mechanical properties test sample preparation system according to claim 1, characterized in that: The preparation system further comprises a hot chamber (24) and an operating room (26), wherein the hot chamber (24) and the operating room (26) are isolated from each other by a shielding wall (25).

3. A remote-operated radiation-resistant metal mechanical properties test sample preparation system according to claim 2, characterized in that: The cutting machine body (1), the purification system (2), the shielding system (4), the cooling system (5) and the automatic wire threading device (6) are all arranged in a hot chamber (24), and the remote control system (3) is arranged in an operating room (26).

4. A remote-operated radiation-resistant metal mechanical properties test sample preparation system according to claim 3, characterized in that: The remote control system (3) is connected to the various systems inside the hot chamber (24) for communication and control via cables and air pipes.

5. A remote-operated radiation-resistant metal mechanical properties test sample preparation system according to claim 4, characterized in that: The cutting machine body (1) comprises a base (7), a displacement platform (8) mounted on the top surface of the base (7), a cutting water trough (9) mounted on the top surface of the displacement platform (8), a wire threading mechanism (11) arranged above the cutting water trough (9), and an observation camera (12).

6. A remote-operated radiation-resistant metal mechanical properties test sample preparation system according to claim 5, characterized in that: The purification system (2) comprises a sewage tank (15), a clean water tank (16) arranged on one side of the sewage tank (15), a shielding barrel (18) arranged above the clean water tank (16), and a pump group (17) arranged behind the shielding barrel (18).

7. A remote-operated radiation-resistant metal mechanical properties test sample preparation system according to claim 6, characterized in that: The purification system (2) further comprises an integrated filter (19) arranged on the top surface of the shielding barrel (18), and an ion exchanger (20) and a filter element (21) are arranged in sequence from bottom to top inside the shielding barrel (18); The inner wall of the shielding barrel (18) is provided with a lead shield (22), and the top of the shielding barrel (18) is provided with a hoisting structure (23).

8. A remote-operated radiation-resistant metal mechanical properties test sample preparation system according to claim 7, characterized in that: The remote control system (3) comprises a control cabinet (27) arranged inside an operating room (26), and the shielding system (4) comprises a motor shield (36) installed above the wire threading mechanism (11).

9. A remote-operated radiation-resistant metal mechanical properties test sample preparation system according to claim 8, characterized in that: The cooling system (5) comprises a cabinet (31), a fan (32) arranged inside the cabinet (31), a controller (33) arranged on the back side of the fan (32) and located on the outer wall of the cabinet (31), and a heat pipe (34) and a pipeline (35) arranged on one side of the controller (33).

10. A remote-operated radiation-resistant metal mechanical properties test sample preparation system according to claim 9, characterized in that: The automatic wire threading device (6) comprises a wire feeder box, a copper coil (30) arranged at the lower part of the inner cavity of the wire feeder box, a tensioning wheel (29) arranged above the copper coil (30), a transmission sliding group (28) arranged at the upper part and the outside, a waste wire collector (10) arranged on the cutting water tank (9), a wire cutter (14) and a new wire connector (13).

Images