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CN-224203904-U - High-temperature superconductive pancake coil for magnetic confinement device

CN224203904UCN 224203904 UCN224203904 UCN 224203904UCN-224203904-U

Abstract

The utility model discloses a high-temperature superconductive cake-type coil for a magnetic restraint device, which comprises a hollow shell, wherein the cake-type coil is fixedly connected inside the shell, a segmented optical fiber temperature sensor detection end is connected between the lower end of the cake-type coil and the lower end inside the shell, a circuit interface is fixedly connected on the right side of the shell, the cake-type coil and the segmented optical fiber temperature sensor detection end are both electrically connected with the circuit interface, the circuit interface is electrically connected with a control end, liquid nitrogen inlet and outlet interfaces are fixedly connected at the upper end and the lower end of the left side of the shell, and the liquid nitrogen inlet and outlet interfaces are communicated with the inside of the shell. This a high temperature superconductor cake-type coil for magnetism restraint device relies on liquid nitrogen to cool off continually, and temperature monitoring prevents quench, and the accurate location problem area of segmentation optical fiber sensor, circuit interface integrated control and communication can reach and make break-make, play the effect that prevents to fuse or cause the damage to equipment.

Inventors

  • ZHOU MINGJUN
  • ZHAO WEIWEI
  • ZHOU PING

Assignees

  • 核聚(上海)能源科技有限公司

Dates

Publication Date
20260505
Application Date
20250526

Claims (7)

  1. 1. The high-temperature superconductive pancake coil for the magnetic restraint device is characterized by comprising a hollow shell (1), wherein the pancake coil (2) is fixedly connected to the inside of the shell (1), a segmented optical fiber temperature sensor detection end (3) is connected between the lower end of the pancake coil (2) and the lower end of the inside of the shell (1), a circuit interface (4) is fixedly connected to the right side of the shell (1), the pancake coil (2) and the segmented optical fiber temperature sensor detection end (3) are electrically connected with the circuit interface (4), the circuit interface (4) is electrically connected with a control end, liquid nitrogen inlet and outlet interfaces (5) are fixedly connected to the upper end and the lower end of the left side of the shell (1), and the liquid nitrogen inlet and outlet interfaces (5) are communicated with the inside of the shell (1).
  2. 2. The high temperature superconducting pancake coil for a magnetic confinement device according to claim 1, wherein the inner wall of the housing (1) is hollow, and the hollow position of the housing (1) is filled with inert gas.
  3. 3. A high temperature superconducting pancake coil for a magnetic confinement device according to claim 1, characterized in that the upper left end of the housing (1) is fixedly connected with a vacuum pump connection interface (21), and the vacuum pump connection interface (21) is communicated with the inside of the housing (1).
  4. 4. A high temperature superconducting pancake coil for a magnetic confinement device according to claim 1, wherein the pancake coil (2) is connected in parallel with a segmented resistive shunt at the control end.
  5. 5. The high-temperature superconductive pancake coil for magnetic confinement device of claim 1, wherein the whole casing (1) is made of stainless steel, and the end plate of the pancake coil (2) is connected with the inside of the casing (1) through high-strength bolts.
  6. 6. The high-temperature superconductive pancake coil for magnetic confinement device according to claim 1, wherein the pancake coil (2) and the wires at the connection part of the detection end (3) of the optical fiber temperature sensor and the circuit interface (4) are connected by laser welding.
  7. 7. A high temperature superconducting pancake coil for a magnetic confinement device according to claim 1, characterized in that the outer casing (1) is connected to the outside of the magnetic confinement device by welding.

Description

High-temperature superconductive pancake coil for magnetic confinement device Technical Field The utility model relates to the technical field of high-temperature superconductivity, in particular to a high-temperature superconductivity pancake coil for a magnetic confinement device. Background Superconducting and magnetic confinement have a close relationship in achieving controlled nuclear fusion. Superconducting materials are important in magnetically confined nuclear fusion devices because they can significantly enhance the magnetic field strength, thereby confining the plasma more effectively and improving fusion reaction efficiency. Superconducting materials are used to fabricate a magnet system in a tokamak device, including a toroidal field coil, a polar field coil, and a central solenoid coil. These coils, when energized, generate a strong helical magnetic field that heats the plasma to high temperatures to achieve nuclear fusion. The existing high-temperature superconductive pancake coil is not provided with a corresponding temperature detection device, so that when the temperature changes at one place, the critical value can be broken through quickly, the resistance value is risen suddenly, and the equipment is damaged or fused, and therefore the high-temperature superconductive pancake coil for the magnetic restraint device is designed to solve the problems. Disclosure of utility model (One) solving the technical problems Aiming at the defects of the prior art, the utility model provides a high-temperature superconductive cake-type coil for a magnetic restraint device, and solves the problems that the prior high-temperature superconductive cake-type coil is not provided with a corresponding temperature detection device, so that when the temperature changes at one place, the critical value can be quickly broken through, the resistance value is suddenly increased, and the equipment is damaged or fused. (II) technical scheme In order to achieve the above purpose, the utility model is realized by the following technical scheme: The utility model provides a high-temperature superconductive cake-type coil for a magnetic restraint device, which comprises a hollow shell, wherein the cake-type coil is fixedly connected inside the shell, a segmented optical fiber temperature sensor detection end is connected between the lower end of the cake-type coil and the lower end inside the shell, a circuit interface is fixedly connected on the right side of the shell, the cake-type coil and the segmented optical fiber temperature sensor detection end are both electrically connected with the circuit interface, the circuit interface is electrically connected with a control end, liquid nitrogen inlet and outlet interfaces are fixedly connected at the upper end and the lower end of the left side of the shell, and the liquid nitrogen inlet and outlet interfaces are communicated with the inside of the shell. Preferably, the inner wall of the housing is hollow, and the hollow position of the housing is filled with inert gas. Preferably, the upper end of the left side of the shell is fixedly connected with a vacuum pump connecting interface, and the vacuum pump connecting interface is communicated with the inside of the shell. Preferably, the pancake coil is connected in parallel with the segmented resistive shunt at the control end. Preferably, the whole shell is made of stainless steel, and the end plate of the pancake coil is connected with the inside of the shell through a high-strength bolt. Preferably, the pancake coil and the lead at the connection part of the detection end of the optical fiber temperature sensor and the circuit interface are connected through laser welding. Preferably, the outer shell is connected with the outer side of the magnetic restraint device by welding. (III) beneficial effects Compared with the prior art, the utility model provides a high-temperature superconductive cake-type coil for a magnetic confinement device, which has at least the following beneficial effects: this a high temperature superconductor cake coil for magnetism restraint device relies on liquid nitrogen to cool off continually, and temperature monitoring prevents quench, and the accurate location problem area of segmentation optical fiber sensor, circuit interface integrated control and communication can reach and make break-make, prevent to fuse or cause the damage to equipment. Drawings FIG. 1 is a schematic diagram of the structure of the present utility model; FIG. 2 is an underside view of the present utility model; FIG. 3 is a cross-sectional view of the present utility model; Fig. 4 is an enlarged view of a portion of the present utility model. In the figure, the device comprises a shell 1, a cake-type coil 2, a detection end of a sectional optical fiber temperature sensor 3, a circuit interface 4, a liquid nitrogen inlet and outlet interface 5, and a vacuum pump connection interface 21. Detailed Description The fol