Online detection and processing system for cleanliness of nuclear fusion armored superconducting conductor

Abstract

The invention discloses a nuclear fusion armored superconducting conductor cleanliness online detection and processing system, and belongs to the field of development of armored superconducting coils for nuclear fusion. The conductor cleanliness online detection and processing system is arranged at the front end part of coil insulation wrapping equipment, and is used for carrying out online real-time detection on a conductor to be wrapped with insulation and carrying out online real-time cleaning on stains; the metal surface cleanliness detector and the plasma cleaning equipment are integrated on a common support, the surface condition of a conductor is rapidly scanned through a probe of the metal surface cleanliness detector, the position of pollutants is determined, and the cold source plasma cleaning equipment is started to clean and decontaminate the superconducting coil. Therefore, the superconducting coil can meet the insulation wrapping condition, and the excellent superconducting performance of the superconducting coil can be realized. The device has the advantages of high detection precision, high automation degree, simple and practical structure and the like.

Description

Technical Field

[0001] The present invention relates to the field of research and development of armored superconducting coils for nuclear fusion, and in particular to a cleanliness detection and processing system for nuclear fusion armored superconducting conductors. Background Art

[0002] Fusion energy is considered humanity's ultimate energy source. Nuclear fusion is categorized into three types: inertial confinement fusion, gravity confinement fusion, and magnetic confinement fusion. Magnetic confinement fusion devices are widely considered the ideal device for achieving fusion energy, and magnet systems are the core components of magnetic confinement fusion devices. Future development trends in fusion magnets will focus on larger superconducting coil sizes, stronger magnetic field intensities, and more stable operation. CICC superconducting conductors, with their excellent mechanical properties, robust cooling channels, and mature manufacturing processes, are being used by both domestic and international peers in the design and development of nuclear fusion superconducting magnets.

[0003] Insulation in armored superconducting coils not only ensures strong electrical performance but also withstands the powerful electromagnetic forces during magnet operation. For armored superconducting coils made of NbTi, inter-turn insulation wrapping can be performed automatically during the coil winding process. For armored superconducting coils made of Nb3Sn, the process typically involves coil winding, superconducting joint fabrication, and coil heat treatment. After this process, the heat-treated coils are then separated turn by turn for inter-turn insulation wrapping. All of these manufacturing processes must be combined to form the insulation wrapping process for the armored superconducting coils.

[0004] During the development of fusion magnets, conductors undergo ultrasonic cleaning, sandblasting, and cleaning before being wound and formed using a bending and winding machine. Whether performing in-line insulation wrapping or performing turn-by-turn insulation wrapping after heat treatment, the conductors are scrubbed again with volatile organic solvents such as alcohol before wrapping to ensure adhesion between the insulation material and the conductor armor. Using organic solvents like industrial alcohol for cleaning is labor-intensive and can be harmful to the human body. Furthermore, alcohol cleaning requires specialized personnel, which limits the automation of the insulation wrapping process. Furthermore, the sandblasted conductor surface has significant unevenness, and alcohol can only clean stains on the raised areas, making it difficult to remove stains on the recessed areas. The presence of these stains weakens the adhesion between the insulation material and the conductor, thus affecting the overall performance of the superconducting magnet. Summary of the Invention

[0005] To address the aforementioned issues, the present invention provides an online detection and treatment system for the cleanliness of armored superconducting conductors for nuclear fusion applications. This system, installed at the front end of the coil insulation wrapping equipment, performs online, real-time inspection of the insulated conductor and cleans any contaminants online. A metal surface cleanliness detector and plasma cleaning equipment are integrated on a common bracket. The metal surface cleanliness detector probe rapidly scans the conductor surface to locate contaminants, then activates the cold-source plasma cleaning equipment to clean and decontaminate the superconducting coils, ensuring they meet insulation wrapping requirements and achieving excellent superconducting performance. This system achieves online detection and treatment of armored conductor surface cleanliness without relying on alcohol, significantly improving the efficiency and quality of conductor surface cleaning, reducing operator labor intensity, avoiding the harmful effects of alcohol cleaning on the human body, and enhancing the automation level of the armored superconducting magnet manufacturing system. The system boasts advantages such as high automation, simple structure, convenient operation, and strong reliability.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions: A nuclear fusion armored superconducting conductor cleanliness detection and processing system includes a plasma cleaning machine bracket, a plasma cleaning machine, an equipment bracket, a metal cleaning detector spectrum probe signal line, a metal cleaning detector spectrum probe, a superconducting coil fixing roller, a plasma cleaning machine bracket fixing bolt, a plasma cleaning machine coupled metal cleaning detector signal line, a plasma cleaning machine compressed air pipe, a plasma cleaning machine and metal cleaning detector interactive coupling switch, and a compressed air source pipe; the plasma cleaning machine and the plasma cleaning machine bracket are connected through an embedded card slot, and then installed on the equipment bracket through the plasma cleaning machine bracket fixing bolts; the superconducting coil is connected through the plasma cleaning machine bracket. The superconducting coil is fixed radially by a fixed roller, and eight circumferentially surrounding metal cleaning detector spectrum probes begin to scan the superconducting coil, and transmit the signal to the plasma cleaning machine and metal cleaning detector interactive coupling switch through the metal cleaning detector spectrum probe signal line. The plasma cleaning machine and metal cleaning detector interactive coupling switch then transmits the cleaning signal to the plasma cleaning machine through the plasma cleaning machine coupled metal cleaning detector signal line to complete the plasma cleaning machine's low-temperature cold source plasma cleaning of the superconducting coil; before the plasma cleaning machine performs plasma cleaning on the superconducting coil, it is respectively connected to the plasma cleaning machine power line and the plasma cleaning machine compressed air pipe.

[0007] Furthermore, the plasma cleaning machines include three units, which are arranged in a 120° circular array around the equipment bracket.

[0008] Furthermore, the superconducting coil fixing roller is installed on the equipment bracket through a linear slide rail to achieve adjustable fixation of the superconducting coil.

[0009] Furthermore, the metal clean detector spectrum probe is embedded in the equipment bracket and connected to the metal clean detector spectrum probe signal line. The metal clean detector spectrum probe signal line is connected to the plasma cleaning machine and the metal clean detector interactive coupling switch to complete the metal clean detector spectrum probe's cleanliness detection signal feedback input to the superconducting coil 6.

[0010] Furthermore, it also includes a superconducting conductor cleanliness detection and processing system load-bearing bracket and a superconducting conductor cleanliness detection and processing system load-bearing base; the equipment bracket is welded to the superconducting conductor cleanliness detection and processing system load-bearing bracket, and the superconducting conductor cleanliness detection and processing system load-bearing base supports the superconducting conductor cleanliness detection and processing system load-bearing bracket.

[0011] Furthermore, the interactive coupling switch between the plasma cleaning machine and the metal cleaning detector is connected to the plasma cleaning machine coupled with the metal cleaning detector signal line, and the plasma cleaning machine coupled with the metal cleaning detector signal line is then connected to the plasma cleaning machine, so as to complete the interactive coupling switch between the plasma cleaning machine and the metal cleaning detector to control the plasma cleaning machine to perform plasma cleaning on the superconducting coil.

[0012] Furthermore, it also includes a switch power cord and a power cord box. The plasma cleaning machine and the metal cleaning detector interactive coupling switch are connected to the switch power cord, and then connected to the power cord box to ensure the stable operation of the plasma cleaning machine and the metal cleaning detector interactive coupling switch.

[0013] Furthermore, it also includes a plasma cleaning machine power cord, a main power cord, and a main power box. The power cord box provides power to the three plasma cleaning machines through the plasma cleaning machine power cord. The power cord box is connected to the main power cord, and the main power cord is then connected to the main power box.

[0014] Furthermore, it comprises a main power box, which supplies power to the plasma cleaning machine, the plasma cleaning machine and the metal cleaning detector interactive coupling switch, and the metal cleaning detector spectrum probe through the main power line.

[0015] Beneficial effects: The present invention solves the problems of large labor costs required for cleaning conductor coils, delays in the conductor insulation wrapping cycle, and excessive coil resistance due to substandard cleanliness before conductor coil insulation wrapping. It also reduces the risk of insulation failure of the conductor coil due to dirt on the coil surface. The present invention uses a metal cleanliness detector and a plasma cleaning machine to couple electrical signals to complete online processing for 360° cleaning of the surface of the superconducting coil. The present invention overcomes the technical difficulties of cleaning blind spots and dead angles in the polyhedron conductor coil cleaning process, and has the advantages of being simple and efficient, and capable of three-dimensional, surround-and-cover cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings that are part of the specification of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments and descriptions of the present invention are used to explain the present invention and do not constitute improper limitations on the present invention.

[0017] Figure 1 The present invention is a schematic structural diagram of a system for detecting and processing the cleanliness of a nuclear fusion armored superconducting conductor.

[0018] Among them, the accompanying drawings are marked as follows: 1-plasma cleaning machine bracket; 2-plasma cleaning machine; 3-equipment bracket; 4-metal cleanliness detector spectrum probe signal line; 5-metal cleanliness detector spectrum probe; 6-superconducting coil; 7-superconducting coil fixing roller; 8-plasma cleaning machine bracket fixing bolt; 9-plasma cleaning machine coupled metal cleanliness detector signal line; 10-plasma cleaning machine power line; 11-plasma cleaning machine compressed air pipe; 12-plasma cleaning machine and metal cleanliness detector interactive coupling switch; 13-switch power line; 14-power line box; 15-main power line; 16-compressed air source pipe; 17-superconducting conductor cleanliness detection and processing system load-bearing bracket; 18-main power box; 19-superconducting conductor cleanliness detection and processing system load-bearing base. DETAILED DESCRIPTION

[0019] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only intended to illustrate the present invention and are not intended to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

[0020] like Figure 1 As shown, a nuclear fusion armored superconducting conductor cleanliness detection and processing system of the present invention includes a plasma cleaning machine bracket 1, a plasma cleaning machine 2, an equipment bracket 3, a metal clean detector spectrum probe signal line 4, a metal clean detector spectrum probe 5, a superconducting coil fixing roller 7, a plasma cleaning machine bracket fixing bolt 8, a plasma cleaning machine coupled metal clean detector signal line 9, a plasma cleaning machine power line 10, a plasma cleaning machine compressed air pipe 11, a plasma cleaning machine and metal clean detector interactive coupling switch 12, a switch power line 13, a power line box 14, a main power line 15, a compressed air source pipe 16, a superconducting conductor cleanliness detection and processing system load-bearing bracket 17, a main power box 18, and a superconducting conductor cleanliness detection and processing system load-bearing base 19.

[0021] Preferably, the plasma cleaning machines 2 include three units, which are arranged in a 120° circular array around the equipment support 3 .

[0022] The plasma cleaning machine 2 is connected to the plasma cleaning machine bracket 1 through an embedded card slot, and then installed on the equipment bracket 3 through the plasma cleaning machine bracket fixing bolts 8; the superconducting coil 6 is radially fixed by the superconducting coil fixing roller 7, and the eight circumferentially surrounding metal cleaning detector spectrum probes 5 begin to scan the superconducting coil and transmit the signal to the plasma cleaning machine and metal cleaning detector interactive coupling switch 12 through the metal cleaning detector spectrum probe signal line 4. The plasma cleaning machine and metal cleaning detector interactive coupling switch 12 then transmits the cleaning signal to the plasma cleaning machine 2 through the plasma cleaning machine coupled metal cleaning detector signal line 9 to complete the low-temperature cold source plasma cleaning of the superconducting coil 6 by the plasma cleaning machine 2.

[0023] The superconducting coil fixing roller 7 is mounted on the equipment bracket 3 via a linear slide rail, providing adjustable fixation for the superconducting coil 6. A metal cleanliness detector spectrum probe 5 is embedded in the equipment bracket 3 and connected to a metal cleanliness detector spectrum probe signal line 4. This metal cleanliness detector spectrum probe signal line 4 is connected to a plasma cleaning machine and metal cleanliness detector cross-coupling switch 12 to provide feedback input for the metal cleanliness detector spectrum probe 5 to detect the cleanliness of the superconducting coil 6.

[0024] The plasma cleaning machine and metal cleaning detector interactive coupling switch 12 is connected to the plasma cleaning machine coupled metal cleaning detector signal line 9, and the plasma cleaning machine coupled metal cleaning detector signal line 9 is then connected to the plasma cleaning machine 2 to complete the plasma cleaning machine and metal cleaning detector interactive coupling switch 12 to control the plasma cleaning machine 2 to perform plasma cleaning on the superconducting coil 6.

[0025] Preferably, before the plasma cleaning machine 2 performs plasma cleaning on the superconducting coil 6 , the plasma cleaning machine 2 needs to be connected to the plasma cleaning machine power line 10 and the plasma cleaning machine compressed air pipe 11 to ensure that the plasma cleaning machine 2 is available.

[0026] The plasma cleaning machine and metal cleaning detector cross-coupling switch 12 is connected to the switch power cable 13, which is then connected to the power cord box 14 to ensure stable operation of the cross-coupling switch 12. The power cord box 14 also provides power to the three plasma cleaning machines 2 via the plasma cleaning machine power cable 10. The power cord box 14 is connected to the main power cable 15, which is in turn connected to the main power box 18. The plasma cleaning machine compressed air pipe 11 is connected to the compressed air source pipe 16 to complete the air supply to the three plasma cleaning machines 2.

[0027] Preferably, the equipment bracket 3 is welded to the superconducting conductor cleanliness detection and processing system load-bearing bracket 17 , and the superconducting conductor cleanliness detection and processing system load-bearing base 19 supports the superconducting conductor cleanliness detection and processing system load-bearing bracket 17 .

[0028] Preferably, the main power box 18 supplies power to the plasma cleaning machine 2 , the plasma cleaning machine and metal cleaning detector interactive coupling switch 12 , and the metal cleaning detector spectrum probe 5 respectively through the main power line 15 .

[0029] Preferably, during the cleaning process, the plasma cleaning machine 2 needs to provide compressed air to the three plasma cleaning machines 2 through the compressed air source pipe 16 and the plasma cleaning machine compressed air pipe 11 respectively, so as to ensure that the plasma cleaning machine 2 has a stable air source during the working process to complete the cold source plasma cleaning.

[0030] When the superconducting coil 6 is wound and enters the insulation wrapping stage, the metal conductor surface cleanliness inspection and cleaning of the superconducting coil 6 is required. Then, the superconducting coil conductor is clamped and fixed by the superconducting coil fixing roller 7, and the metal clean detector spectrum probe 5 is used to perform spectral inspection to collect the cleanliness of the superconducting coil conductor surface. The metal clean detector spectrum probe 5 feeds back the spectral information to the metal clean detector, and the metal clean detector is coupled with the plasma cleaning machine 2 for signal coupling, so that the metal clean detector spectrum probe 5 can complete the superconducting coil surface cleanliness inspection. The metal clean detector is coupled with the plasma cleaning machine 2 for electrical signal coupling, thereby triggering the plasma cleaning machine 2 to clean the superconducting coil to ensure that the superconducting coil 6 achieves excellent superconducting performance.

[0031] It will be easily understood by those skilled in the art that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A nuclear fusion armored superconducting conductor cleanliness detection and processing system, characterized in that: It includes a plasma cleaning machine bracket, a plasma cleaning machine, an equipment bracket, a metal cleaning detector spectrum probe signal line, a metal cleaning detector spectrum probe, a superconducting coil fixing roller, a plasma cleaning machine bracket fixing bolt, a plasma cleaning machine coupled metal cleaning detector signal line, a plasma cleaning machine compressed air pipe, a plasma cleaning machine and metal cleaning detector interactive coupling switch, and a compressed air source pipe; the plasma cleaning machine and the plasma cleaning machine bracket are connected through an embedded card slot, and then installed on the equipment bracket through the plasma cleaning machine bracket fixing bolts; the superconducting coil is radially connected to the superconducting coil fixing roller The 8 metal cleaning detector spectrum probes which are fixed and surround in the circumferential direction start to scan the superconducting coil, and transmit the signal to the plasma cleaning machine and the metal cleaning detector interactive coupling switch through the metal cleaning detector spectrum probe signal line. The plasma cleaning machine and the metal cleaning detector interactive coupling switch transmit the cleaning signal to the plasma cleaning machine through the plasma cleaning machine coupled metal cleaning detector signal line to complete the low-temperature cold source plasma cleaning of the superconducting coil by the plasma cleaning machine. Before the plasma cleaning machine performs plasma cleaning on the superconducting coil, it is respectively connected to the plasma cleaning machine power line and the plasma cleaning machine compressed air pipe.

2. A nuclear fusion armored superconducting conductor cleanliness detection and processing system according to claim 1, characterized in that: There are three plasma cleaning machines, which are arranged in a 120° circular array around the equipment support.

3. A nuclear fusion armored superconducting conductor cleanliness detection and processing system according to claim 1, characterized in that: The superconducting coil fixing roller is installed on the equipment bracket through a linear slide rail to complete the adjustable fixing of the superconducting coil.

4. A nuclear fusion armored superconducting conductor cleanliness detection and processing system according to claim 1, characterized in that: The metal clean detector spectrum probe is embedded in the equipment bracket and connected to the metal clean detector spectrum probe signal line. The metal clean detector spectrum probe signal line is connected to the plasma cleaning machine and the metal clean detector interactive coupling switch to complete the metal clean detector spectrum probe to the superconducting coil 6 cleanliness detection signal feedback input.

5. A nuclear fusion armored superconducting conductor cleanliness detection and processing system according to claim 1, characterized in that: It also includes a superconducting conductor cleanliness detection and processing system load-bearing bracket and a superconducting conductor cleanliness detection and processing system load-bearing base; the equipment bracket is welded to the superconducting conductor cleanliness detection and processing system load-bearing bracket, and the superconducting conductor cleanliness detection and processing system load-bearing base supports the superconducting conductor cleanliness detection and processing system load-bearing bracket.

6. A nuclear fusion armored superconducting conductor cleanliness detection and processing system according to claim 1, characterized in that: The interactive coupling switch of the plasma cleaning machine and the metal cleaning detector is connected to the plasma cleaning machine coupled metal cleaning detector signal line, and the plasma cleaning machine coupled metal cleaning detector signal line is further connected to the plasma cleaning machine, so as to complete the interactive coupling switch of the plasma cleaning machine and the metal cleaning detector to control the plasma cleaning machine to perform plasma cleaning on the superconducting coil.

7. A nuclear fusion armored superconducting conductor cleanliness detection and processing system according to claim 1, characterized in that: It also includes a switch power cord and a power cord box. The plasma cleaning machine and the metal cleaning detector interactive coupling switch are connected to the switch power cord, and then connected to the power cord box to ensure the stable operation of the plasma cleaning machine and the metal cleaning detector interactive coupling switch.

8. A nuclear fusion armored superconducting conductor cleanliness detection and processing system according to claim 1, characterized in that: It also includes a plasma cleaning machine power cord, a main power cord, and a main power box. The power cord box provides power to the three plasma cleaning machines through the plasma cleaning machine power cord. The power cord box is connected to the main power cord, and the main power cord is connected to the main power box.

9. A nuclear fusion armored superconducting conductor cleanliness detection and processing system according to claim 1, characterized in that: It comprises a main power box, which supplies power to a plasma cleaning machine, an interactive coupling switch between the plasma cleaning machine and a metal cleaning detector, and a spectrum probe of the metal cleaning detector respectively through a main power line.

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