Conduction cooling superconducting magnet and processing method thereof

Abstract

The invention belongs to the technical field of superconduction, and discloses a conduction cooling superconducting magnet and a processing method thereof.The conduction cooling superconducting magnet comprises a superconducting magnet framework, a superconducting coil and a cold conduction ring, the superconducting magnet framework is provided with a plurality of partition plates arranged at intervals, and the partition plates are provided with axial notches formed in the circumferential direction of the partition plates at intervals; the superconducting coil is wound on the superconducting magnet framework, the cold conduction rings are installed on the radial outer side of the superconducting coil, the multiple cold conduction rings are distributed in the circumferential direction of the superconducting coil at intervals, and each cold conduction ring is provided with an avoiding notch for the partition plate to penetrate out and provided with at least two external cold conduction connectors. While the superconducting coil winding and cold conduction functions are achieved, the superconducting coil winding and cold conduction structure installation efficiency is greatly improved, the manufacturing cost is reduced, and due to the fact that the cold conduction ring serving as the cold conduction structure is directly installed on the outer side of the superconducting coil, the good cold conduction effect is achieved.

Description

Technical Field

[0001] The present invention relates to the field of superconducting technology, and in particular to a conduction-cooled superconducting magnet and a processing method thereof. Background Art

[0002] In superconducting magnet technology, there is a type of multi-coil technology that uses a common skeleton to wind superconducting coils, which is often used in magnetic resonance imaging. At the same time, in order to get rid of the dependence on liquid helium refrigerants, small magnetic resonance imaging superconducting magnets have also shifted from liquid helium immersion cooling to conduction cooling in recent years, and the technology is becoming increasingly mature. Most of the existing conduction-cooled superconducting magnets use skeleton conduction cooling. The skeleton must serve as both a supporting structure for the coil and a cooling structure. This places high demands on the material and structure of the skeleton, making the cost of conduction-cooled superconducting magnets high. In addition, since the skeleton is mostly made of aluminum alloy or stainless steel, the thermal resistance is larger than that of commonly used materials such as oxygen-free copper, which will limit the cooling capacity of the skeleton and fail to cool the coil well. Summary of the invention

[0003] A first object of the present invention is to provide a conduction-cooled superconducting magnet, which has a relatively low manufacturing cost and a good cooling effect on superconducting coils.

[0004] To achieve this object, the present invention adopts the following technical solutions:

[0005] The present invention discloses a conduction-cooled superconducting magnet, comprising: a superconducting magnet skeleton, wherein the superconducting magnet skeleton has a plurality of spaced-apart partitions, and the partitions have axial slots spaced-apart along the circumferential direction thereof; a superconducting coil, wherein the superconducting coil is wound on the superconducting magnet skeleton; a conduction-cooling ring, wherein the conduction-cooling ring is installed on the radial outer side of the superconducting coil, and the conduction-cooling ring is multiple, and the multiple conduction-cooling rings are spaced-apart along the circumferential direction of the superconducting coil, each of the conduction-cooling rings is provided with an avoidance slot for the partitions to pass through, and each of the conduction-cooling rings is provided with at least two external conduction-cooling joints.

[0006] In some embodiments, each of the cooling rings is further provided with a groove, and the groove is used to reduce the strength of the cooling ring so that the cooling ring matches the shape of the outer wall of the superconducting coil.

[0007] In some specific embodiments, there are a plurality of the grooves, and the plurality of the grooves are spaced apart along the axial direction and the circumferential direction of the cooling ring.

[0008] In some embodiments, the conduction-cooled superconducting magnet further includes a heating element, which is installed between the conduction-cooling ring and the superconducting coil. The heating element is attached to the outer wall of the superconducting coil and is insulated from the conduction-cooling ring.

[0009] In some specific embodiments, the conduction-cooled superconducting magnet further includes an insulating layer, which is installed between the heating element and the conduction-cooling ring and adheres to the outside of the superconducting coil.

[0010] In some more specific embodiments, the conduction-cooled superconducting magnet also includes at least one layer of a first fixed coil, which is installed on the radial inner side of the conduction-cooling ring and wound around the insulating layer to reinforce the insulating layer, the heating element and the superconducting coil.

[0011] In some embodiments, the conduction-cooled superconducting magnet further includes at least one layer of a second fixed coil, wherein the second fixed coil is wound around the conduction-cooling ring to fix the conduction-cooling ring.

[0012] In some embodiments, the superconducting magnet skeleton includes: a cylindrical portion, which is used to install the partition; an end plate, which is connected to the axial ends of the cylindrical portion and is an integrally formed part with the cylindrical portion; a plurality of tie rods, each of which has two ends connected to the two end plates respectively, and a plurality of tie rods are arranged at intervals along the circumference of the end plates; wherein: an annular wire groove for winding is defined between two adjacent partitions and between the end plate and the partition, and a wire inlet groove connected to the annular wire groove is provided on the partition.

[0013] In some specific embodiments, a plurality of suspension rod mounting holes are provided on the end plate, and the plurality of suspension rod mounting holes are arranged at intervals along the circumference of the end plate.

[0014] The beneficial effects of the conduction-cooled superconducting magnet of the present invention are as follows: since the conduction-cooling ring is installed on the radially outer side of the superconducting coil, in the actual working process, the conduction-cooling ring is connected to the external cold source through at least two external conduction-cooling joints, so that the external cold is transferred to the conduction-cooling ring, and then the superconducting coil is cooled by the conduction-cooling ring. In the present invention, the superconducting magnet skeleton does not need to be connected to the external cold source, and the superconducting magnet skeleton only serves as a supporting component of the superconducting coil. The material requirements for the superconducting magnet skeleton are relatively low, which is conducive to reducing the manufacturing cost of the conduction-cooled superconducting magnet. At the same time, since there are multiple conduction-cooling rings, and the multiple conduction-cooling rings are distributed at intervals along the circumference of the superconducting coil, the cooling efficiency and cooling effect of the superconducting coil can be improved, which is conducive to improving the strength of the conduction-cooled superconducting magnet. In addition, since each conduction-cooling ring is provided with an avoidance notch for the partition to pass through, the axial notch on the partition can be used as the outlet of the superconducting coil, which facilitates the assembly of the conduction-cooled superconducting magnet.

[0015] The second object of the present invention is to provide a method for processing a conduction-cooled superconducting magnet. The conduction-cooled superconducting magnet manufactured by the method has a relatively low manufacturing cost and a good cooling effect on the superconducting coil.

[0016] To achieve this object, the present invention adopts the following technical solutions:

[0017] The present invention discloses a method for processing a conduction-cooled superconducting magnet, comprising: winding a plurality of superconducting coils in sequence on a cylindrical portion of a superconducting magnet skeleton; installing at least two heating elements on the outer side of the superconducting coils; installing an insulating layer on the outer side of the heating element; reinforcing the outer side of the insulating layer with a first fixed coil; sequentially installing a plurality of conduction-cooling rings on the outer side of the first fixed coil, and reinforcing the outer side of the conduction-cooling rings with a second fixed coil; and installing a plurality of tie rods between two end plates of the superconducting magnet skeleton.

[0018] The beneficial effects of the processing method of the conduction-cooled superconducting magnet of the present invention are as follows: since the conduction-cooling ring is installed on the radially outer side of the superconducting coil, during the actual working process, the conduction-cooling ring is connected to the external cold source through at least two external conduction-cooling joints, so that the external cold energy is transferred to the conduction-cooling ring, and then the superconducting coil is cooled by the conduction-cooling ring. In the present invention, the superconducting magnet skeleton does not need to be connected to the external cold source, and the superconducting magnet skeleton only serves as a supporting component of the superconducting coil. The material requirements for the superconducting magnet skeleton are relatively low, which is conducive to reducing the manufacturing cost of the conduction-cooled superconducting magnet.

[0019] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic structural diagram of a conduction-cooled superconducting magnet according to an embodiment of the present invention;

[0021] Figure 2 is a cross-sectional view of a conduction-cooled superconducting magnet according to an embodiment of the present invention;

[0022] Figure 3 yes Figure 2 The enlarged schematic diagram of the circled A;

[0023] Figure 4 is a schematic diagram of a partial structure of a conduction-cooled superconducting magnet according to an embodiment of the present invention;

[0024] Figure 5 is a schematic structural diagram of a superconducting magnet skeleton according to an embodiment of the present invention;

[0025] Figure 6 is a schematic diagram of the structure of a cooling ring according to an embodiment of the present invention;

[0026] Figure 7 Flow chart of a method for processing a conduction-cooled superconducting magnet according to an embodiment of the present invention.

[0027] Reference numerals:

[0028] 100. Superconducting coil;

[0029] 200, superconducting magnet skeleton; 210, columnar portion; 220, partition; 221, axial notch; 222, inlet groove; 230, end plate; 231, suspension rod mounting hole; 232, weight reduction hole; 240, annular groove; 250, pull rod;

[0030] 300, heating element; 400, insulating layer; 500, first fixed coil;

[0031] 600, cooling ring; 610, avoidance notch; 620, external cooling joint; 630, cutting groove;

[0032] 700. Second fixed coil. DETAILED DESCRIPTION

[0033] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0034] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] In the description of this embodiment, the terms "upper", "lower", "left", "right", "front", "rear" and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operate in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0036] Reference below Figure 1-Figure 6 The specific structure of the conduction-cooled superconducting magnet according to a specific embodiment of the present invention is described.

[0037] The present invention discloses a conduction-cooled superconducting magnet, referring to Figure 1-Figure 3As shown, the conduction-cooled superconducting magnet includes a superconducting magnet skeleton 200, a superconducting coil 100 and a conduction cooling ring 600. The superconducting magnet skeleton 200 has a plurality of spaced partitions 220, and the partitions 220 have axial slots 221 spaced along their circumferential direction. The superconducting coil 100 is wound on the superconducting magnet skeleton 200, and the conduction cooling ring 600 is installed on the radial outer side of the superconducting coil 100. There are a plurality of conduction cooling rings 600, and the plurality of conduction cooling rings 600 are spaced along the circumferential direction of the superconducting coil 100. Each conduction cooling ring 600 is provided with an avoidance slot 610 for the partition 220 to pass through, and each conduction cooling ring 600 is provided with at least two external conduction cooling joints 620. It can be understood that, since the conductive cooling ring 600 of this embodiment is installed on the radially outer side of the superconducting coil 100, in the actual working process, the conductive cooling ring 600 is connected to the external cold source through at least two external conductive cooling joints 620, so as to transfer the external cold to the conductive cooling ring 600, and then the conductive cooling ring 600 cools the superconducting coil 100. In this embodiment, the superconducting magnet skeleton 200 does not need to be connected to the external cold source, and the superconducting magnet skeleton 200 only serves as a supporting component of the superconducting coil 100. The material requirements for the superconducting magnet skeleton 200 are relatively low, which is conducive to reducing the manufacturing cost of the conduction-cooled superconducting magnet. At the same time, since there are multiple conductive cooling rings 600, and the multiple conductive cooling rings 600 are distributed at intervals along the circumference of the superconducting coil 100, the cooling efficiency and cooling effect of the superconducting coil 100 can be improved, thereby helping to improve the strength of the conduction-cooled superconducting magnet. In addition, since each cooling ring 600 is provided with an avoidance slot 610 for the partition 220 to pass through, the axial slot 221 on the partition 220 can be used as an outlet for the superconducting coil 100, which facilitates the assembly of the conduction-cooled superconducting magnet. After the partition 220 is inserted into the avoidance slot 610, the cooling ring 600 can be prevented from moving circumferentially along the superconducting magnet frame 200.

[0038] In this embodiment, there are three cooling rings 600, and each cooling ring 600 is provided with five avoidance slots 610, and both ends of each avoidance slot 610 are provided with external cooling joints 620. Of course, in other embodiments of the present invention, the number of cooling rings 600, the number of avoidance slots 610, and the number of external cooling joints 620 can be selected according to actual needs.

[0039] Optionally, the superconducting magnet skeleton 200 is made of metal material, and a polytetrafluoroethylene coating is sprayed on the superconducting magnet skeleton 200 to ensure good cooling performance while ensuring insulation.

[0040] Optionally, the cooling ring 600 is made of oxygen-free copper TU1 to ensure good cooling performance. After the cooling ring 600 is formed, it needs to be annealed to reduce its hardness so that the shape can be better trimmed to fit the superconducting magnet during installation, thereby ensuring its cooling performance.

[0041] refer to Figure 3 As shown, the conduction-cooled superconducting magnet also includes a heating element 300, which is installed between the conduction cooling ring 600 and the superconducting coil 100. The heating element 300 is attached to the outer wall of the superconducting coil 100 and is insulated from the conduction cooling ring 600. It can be understood that the heating element 300 is attached to the superconducting coil 100. In the actual working process, the heating element 300 can heat the superconducting coil 100 according to actual needs, so that when the superconducting coil 100 loses its superconducting performance due to local overheating, the entire superconducting coil 100 is heated so that the entire superconducting coil 100 quickly loses its superconducting performance, so that the superconducting coil 100 will not be damaged by local overheating. Optionally, the heating element 300 includes at least two layers of heating plates.

[0042] Optionally, the conduction-cooled superconducting magnet further includes an insulating layer 400, which is installed between the heating element 300 and the conduction-cooling ring 600 and is attached to the outside of the superconducting coil 100. The added insulating layer 400 can ensure the insulation between the heating element 300 and the superconducting coil 100, avoid the fault caused by the conduction between the two, and help improve the working reliability of the conduction-cooled superconducting magnet. Further optionally, the insulating layer 400 can be an epoxy insulating layer with a thickness of not less than 2 mm.

[0043] refer to Figure 3 As shown, the conduction-cooled superconducting magnet also includes at least one layer of first fixed coil 500, which is installed on the radial inner side of the conduction cooling ring 600 and is wound around the insulating layer 400 to reinforce the insulating layer 400, the heating element 300 and the superconducting coil 100. It can be understood that fixing the insulating layer 400 and the heating element 300 by the first fixed coil 500 can ensure their stability, avoid the insulating layer 400 and the heating element 300 from falling off, and ensure that the heating element 300 is stably attached to the superconducting coil 100. In addition, the superconducting coil 100 will generate radial force when working, and the first fixed coil 500 can also further fix the superconducting coil 100 to prevent the superconducting coil 100 from loosening due to radial force when working. Optionally, the first fixed coil 500 includes at least three layers of copper-clad aluminum wire.

[0044] refer to Figure 3 As shown, the conduction-cooled superconducting magnet further includes at least one layer of second fixed coil 700, and the second fixed coil 700 is wound around the conduction cooling ring 600 to fix the conduction cooling ring 600. It can be understood that fixing the conduction cooling ring 600 by the second fixed coil 700 can ensure its stability, avoid the conduction cooling ring 600 from falling off, and ensure that the conduction cooling ring 600 is stably attached to the superconducting coil 100. Optionally, the second fixed coil 700 includes at least three layers of copper-clad aluminum wire.

[0045] Optionally, the depth of the plurality of axial notches 221 on the partition 220 can be adjusted according to actual needs, and is used for the output of the superconducting coil 100 , the input and output of the copper-clad aluminum wire, and the output of the heating element 300 .

[0046] refer to Figure 4 As shown, each cooling ring 600 is also provided with a slot 630, which is used to reduce the strength of the cooling ring 600 so that the cooling ring 600 matches the outer wall shape of the superconducting coil 100. It can be understood that the role of the slot 630 is to reduce the stiffness of the cooling copper ring. In the actual assembly process, the size of the cooling ring 600 can be corrected according to the actual size of the outer side of the superconducting coil 100, so that the cooling ring 600 and the superconducting coil 100 are better fitted. Optionally, there are multiple slots 630, and the multiple slots 630 are distributed along the axial and circumferential intervals of the cooling ring 600. Therefore, there are multiple slots 630, and in the actual assembly process, the assembler can more conveniently correct the size of the cooling ring 600, so that the cooling ring 600 and the superconducting coil 100 are more fully fitted.

[0047] refer to Figure 5 As shown, the superconducting magnet skeleton 200 includes a cylindrical portion 210 and an end plate 230. The cylindrical portion 210 is used to install the partition 220. The end plate 230 is connected to the axial ends of the cylindrical portion 210 and is an integrally formed part with the cylindrical portion 210. An annular wire groove 240 for winding is defined between two adjacent partitions 220 and between the end plate 230 and the partition 220 (there are five annular wire grooves 240 in this embodiment, and of course the number of annular wire grooves 240 can also be adjusted according to actual needs). The partition 220 is provided with a wire inlet groove 222 connected to the annular wire groove 240. It can be understood that the cylindrical portion 210 provides a stable winding space for the superconducting coil 100, and the limiting effect of the end plate 230 and the partition 220 can prevent multiple superconducting coils 100 from moving along the axial direction of the cylindrical portion 210, thereby ensuring the installation stability of the superconducting coil 100. Optionally, the end plates 230 and the partition plates 220 are symmetrically distributed around the central cross section of the cylindrical portion 210 .

[0048] Optionally, the end plate 230 is provided with a plurality of suspension tie rod mounting holes 231, and the plurality of suspension tie rod mounting holes 231 are arranged at intervals along the circumference of the end plate 230. It is understandable that, in general, in order to reduce the heat leakage of the superconducting magnet, a suspension tie rod is used to suspend the superconducting magnet on the dewar. In this embodiment, the end plate 230 is provided with a suspension tie rod mounting hole 231 for installing the suspension tie rod, so as to conveniently suspend the conduction-cooled superconducting magnet of this embodiment. Further optionally, the suspension tie rod mounting holes 231 are four groups, and the four groups of suspension tie rod mounting holes 231 are symmetrically distributed.

[0049] Optionally, the superconducting magnet skeleton 200 further includes a plurality of tie rods 250, which are arranged at intervals along the circumference of the end plates 230, and the two ends of each tie rod 250 are respectively connected to the suspension tie rod mounting holes 231 on the two end plates 230. It can be understood that the tie rods 250 are used to improve the overall strength of the superconducting magnet skeleton 200, thereby improving the structural strength of the conduction-cooled superconducting magnet. In addition, the tie rods 250 can also facilitate the fixing of the inlet and outlet wires on the superconducting coil 100 and the inlet and outlet wires of the heating element 300.

[0050] In the actual assembly process, the pull rod 250 is installed after the superconducting magnet is wound to avoid interference during winding.

[0051] Optionally, the end plate 230 is further provided with a weight-reducing hole 232 to reduce the weight of the end plate 230.

[0052] The present invention discloses a method for processing a conduction-cooled superconducting magnet. Figure 7 As shown, the processing method includes:

[0053] S1: Winding a plurality of superconducting coils 100 sequentially on the cylindrical portion 210 of the superconducting magnet skeleton 200; specifically, winding superconducting wires sequentially in five annular wire grooves 240 outside the cylindrical portion 210 to form coils.

[0054] S2: Install at least two heating elements 300 on the outside of the superconducting coil 100 . Specifically, attach the heating sheet to the outer wall of the superconducting coil 100 .

[0055] S3: installing the insulating layer 400 on the outer side of the heating element 300; specifically, attaching the epoxy insulating sheet to the outer wall of the heating element 300, and the thickness of the epoxy insulating sheet is not less than 2 mm.

[0056] S4: using a first fixed coil 500 to reinforce the outer side of the insulating layer 400 ; specifically, winding at least one layer of copper-clad aluminum wire as the first fixed coil 500 to reinforce the superconducting coil 100 , the heating element 300 and the insulating layer 400 .

[0057] S5: Install multiple cooling rings 600 in sequence on the outside of the first fixed coil 500, and use the second fixed coil 700 to reinforce the outside of the cooling ring 600; specifically, during installation, insert the avoidance slot 610 on the cooling ring 600 into the position of the partition 220, and make the external cooling joint 620 embedded in the axial slot 221 of the superconducting magnet skeleton 200. After the cooling ring 600 is installed, wind at least three layers of copper-clad aluminum wire as the second fixed coil 700 to the cooling ring 600.

[0058] S6: Install a plurality of tie rods 250 between the two end plates 230 of the superconducting magnet skeleton 200; specifically, weld the two ends of the tie rods 250 to the two end plates 230 by welding.

[0059] In the conduction-cooled superconducting magnet processed by the processing method of the present invention, since the conduction-cooling ring 600 is installed on the radially outer side of the superconducting coil 100, during the actual working process, the conduction-cooling ring 600 is connected to the external cold source through at least two external conduction-cooling joints 620, so that the external cold energy is transferred to the conduction-cooling ring 600, and the superconducting coil 100 is then cooled by the conduction-cooling ring 600. In this embodiment, the superconducting magnet skeleton 200 does not need to be connected to the external cold source. The superconducting magnet skeleton 200 only serves as a supporting component of the superconducting coil 100. The material requirements for the superconducting magnet skeleton 200 are relatively low, which is conducive to reducing the manufacturing cost of the conduction-cooled superconducting magnet.

[0060] In the description of this specification, the description with reference to the terms "some embodiments", "other embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0061] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A conduction-cooled superconducting magnet, characterized in that: include: A superconducting magnet frame (200), the superconducting magnet frame (200) having a plurality of spaced-apart partitions (220), the spacers (220) having axial notches (221) spaced-apart along the circumferential direction thereof; A superconducting coil (100), wherein the superconducting coil (100) is wound on the superconducting magnet frame (200); A cooling ring (600) is installed on the radial outer side of the superconducting coil (100). There are multiple cooling rings (600), and the multiple cooling rings (600) are distributed at intervals along the circumference of the superconducting coil (100). Each of the cooling rings (600) is provided with an escape slot (610) for the partition (220) to pass through, and each of the cooling rings (600) is provided with at least two external cooling joints (620).

2. The conduction-cooled superconducting magnet according to claim 1, characterized in that: Each of the cooling rings (600) is also provided with a groove (630), and the groove (630) is used to reduce the strength of the cooling ring (600) so that the cooling ring (600) matches the shape of the outer wall of the superconducting coil (100).

3. The conduction-cooled superconducting magnet according to claim 2, characterized in that: There are a plurality of the cutting grooves (630), and the plurality of the cutting grooves (630) are distributed at intervals along the axial direction and the circumferential direction of the cooling ring (600).

4. The conduction-cooled superconducting magnet according to claim 1, characterized in that: It also includes a heating element (300), which is installed between the cooling ring (600) and the superconducting coil (100). The heating element (300) is attached to the outer wall of the superconducting coil (100) and is insulated from the cooling ring (600).

5. The conduction-cooled superconducting magnet according to claim 4, characterized in that: It also includes an insulating layer (400), which is installed between the heating element (300) and the cooling ring (600) and adheres to the outside of the superconducting coil (100).

6. The conduction-cooled superconducting magnet according to claim 5, characterized in that: It also includes at least one layer of a first fixed coil (500), which is installed on the radial inner side of the cooling ring (600) and is wound around the insulating layer (400) to reinforce the insulating layer (400), the heating element (300) and the superconducting coil (100).

7. The conduction-cooled superconducting magnet according to claim 1, characterized in that: It also includes at least one layer of a second fixed coil (700), wherein the second fixed coil (700) is wound around the cooling ring (600) to fix the cooling ring (600).

8. The conduction-cooled superconducting magnet according to claim 1, characterized in that: The superconducting magnet skeleton (200) comprises: A columnar portion (210), the columnar portion (210) being used to mount the partition plate (220); An end plate (230), the end plate (230) being connected to two axial ends of the columnar portion (210) and being an integrally formed part with the columnar portion (210); A plurality of tie rods (250), two ends of each tie rod (250) are respectively connected to the two end plates (230), and the plurality of tie rods (250) are arranged at intervals along the circumference of the end plates (230); wherein: An annular wire groove (240) for winding wires is defined between two adjacent partitions (220) and between the end plate (230) and the partition (220), and a wire inlet groove (222) communicating with the annular wire groove (240) is provided on the partition (220).

9. The conduction-cooled superconducting magnet according to claim 8, characterized in that: The end plate (230) is provided with a plurality of suspension rod mounting holes (231), and the plurality of suspension rod mounting holes (231) are arranged at intervals along the circumference of the end plate (230).

10. A method for processing a conduction-cooled superconducting magnet, characterized in that: include: Winding a plurality of superconducting coils (100) in sequence on a columnar portion (210) of a superconducting magnet frame (200); At least two heating elements (300) are installed outside the superconducting coil (100); An insulating layer (400) is installed on the outer side of the heating element (300); A first fixed coil (500) is used to reinforce the outer side of the insulating layer (400); A plurality of cooling rings (600) are sequentially installed on the outer side of the first fixed coil (500); A second fixed coil (700) is used to reinforce the outer side of the cooling ring (600); A plurality of tie rods (250) are installed between two end plates (230) of the superconducting magnet skeleton (200).

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