Superconducting magnet coil dipping shroud ring

Abstract

The utility model relates to the technical field of superconducting magnets, in particular to a superconducting magnet coil dipping shroud ring. A superconducting magnet coil dipping shroud ring is characterized in that an upper shroud ring body and a lower shroud ring body are connected in a fastened mode through locking screws, the upper shroud ring body comprises an upper steel belt, a storage tank, upper locking blocks and a liquid level observation pipe, the upper steel belt is of an arc-shaped structure, the top of the upper steel belt is connected with the storage tank, and the left side and the right side of the bottom of the upper steel belt are connected with the upper locking blocks respectively. A liquid level observation pipe is connected to the upper steel belt between the storage tank and the upper locking block; the lower shroud ring comprises a lower steel belt, lower locking blocks and a glue injection connector, the left side and the right side of the top of the lower steel belt are connected with the lower locking blocks respectively, and the bottom of the lower steel belt is connected with the glue injection connector. Compared with the prior art, the structure is simple, manufacturing cost is low, mounting and dismounting are convenient, and time is saved; glue is removed after resin curing is completed, operation is easy, and dipping uniformity is high; the matching degree is high, and the steel belt is a thin-wall stainless steel plate and can be more easily and tightly attached to the outer circle face of the magnet framework.

Description

Technical Field

[0001] The utility model relates to the technical field of superconducting magnets, and specifically relates to a superconducting magnet coil impregnation hoop. Background Art

[0002] Superconducting magnets are indispensable equipment in the medical industry and play a crucial role in human medicine. The manufacturing process of superconducting magnets generally includes: component processing, coil winding, impregnation, electrical installation, assembly, etc. In the coil winding link, superconducting wires are regularly wound in the magnetic body skeleton wire grooves to form a coil, and then the wound magnetic body coil is impregnated and cured with epoxy resin. Since the magnetic body coil works in a liquid helium environment with an extremely low temperature of 4.2K, both the magnetic body skeleton and the coil will undergo a certain amount of cold shrinkage deformation. In addition, the strong magnetic field force in the working state of the magnetic body coil will cause a certain amount of displacement of the superconducting wires wound in the magnetic body wire grooves, which may lead to the quenching of the magnet. Therefore, the impregnation and curing of the magnetic body coil are particularly important. Due to this, the superconducting magnet coil impregnation device directly affects the impregnation and curing effects, and then affects the magnetic field strength and uniformity of the superconducting magnet, and may even cause the quenching of the magnet.

[0003] The traditional magnetic body coil impregnation device places the wound coil in an impregnation container. Then, after evacuating the impregnation container, epoxy resin is injected into the impregnation container to submerge the coil. After maintaining the pressure for a certain time, an inert gas is added to the impregnation container and pressurized to infiltrate the resin into the coil interior. After releasing the pressure, the coil is taken out, the excess resin is discharged, and then cured.

[0004] Regarding the traditional coil impregnation device, there are many drawbacks: 1. Different-sized impregnation containers need to be made for different-sized magnetic body coils; 2. It has a large volume and occupies a large amount of floor space; 3. It is impossible to control the impregnation space of the magnetic body coil within a small space range, resulting in an increase in resin usage and waste, greatly increasing the impregnation cost; 4. The process is cumbersome, and the excess resin needs to be removed manually, resulting in uneven thickness of the covered resin, and uneven stress and heat conduction in the working state of the magnet, affecting the operation performance of the magnet. Summary of the Invention

[0005] The utility model aims to overcome the deficiencies of the prior art and provides a superconducting magnet coil impregnation hoop, which is simple to manufacture, small in volume, low in resin usage, simple and convenient for installation and disassembly, high in impregnation uniformity, and saves impregnation cost.

[0006] To achieve the above object, a superconducting magnet coil impregnation hoop is designed, including an upper hoop and a lower hoop, characterized in that: the upper hoop and the lower hoop are fixedly connected by locking screws. The upper hoop includes an upper steel strip, a material storage tank, an upper locking block, and a liquid level observation tube. The upper steel strip is of an arc-shaped structure. The top of the upper steel strip is connected to the material storage tank. The left and right sides of the bottom of the upper steel strip are respectively connected to the upper locking blocks. The liquid level observation tube is connected to the upper steel strip between the material storage tank and the upper locking blocks. The lower hoop includes a lower steel strip, a lower locking block, and a glue injection interface. The left and right sides of the top of the lower steel strip are respectively connected to the lower locking blocks. The bottom of the lower steel strip is connected to the glue injection interface.

[0007] A sealing gasket is provided between the upper locking block of the upper hoop and the lower locking block of the lower hoop.

[0008] The upper locking block and the lower locking block of the upper hoop are of a rectangular module structure, and the upper locking block and the lower locking block are connected to the upper steel strip and the lower steel strip by welding; a number of threaded holes for connecting the locking screws are evenly distributed on the upper locking block and the lower locking block.

[0009] The upper steel strip and the lower steel strip are arc-shaped thin-walled plates.

[0010] The bottom of the material storage tank penetrates through the top of the upper steel strip, and the material storage tank is connected to the top of the upper steel strip by sealed welding.

[0011] The bottom of the liquid level observation tube is socketed at the liquid level interface on the upper steel strip.

[0012] The top of the glue injection interface is connected to the bottom of the lower steel strip. The bottom of the glue injection interface is connected to a glue injection pipeline, and the glue injection pipeline is socketed at the glue injection interface. The glue injection pipeline and the glue injection interface are locked by a clamp.

[0013] The upper steel strip, the material storage tank, the upper locking block, the lower steel strip, the glue injection interface, and the lower locking block are all made of SUS304 stainless steel.

[0014] The liquid level observation tube and the glue injection pipeline are both made of PVC pipes.

[0015] The sealing gasket is made of silicone rubber.

[0016] Compared with the prior art, the present utility model provides a superconducting magnet coil impregnation hoop, which has a simple structure, low manufacturing cost, convenient installation and disassembly, and saves time; the resin consumption is small, saving material costs; after the resin is cured, the glue removal is easy to operate, and the impregnation uniformity is high; the matching degree is high, the steel strip is a thin-walled stainless steel plate, and it is easier to closely fit with the outer circular surface of the magnet skeleton.

[0017] Verified by repeated experiments, the present utility model fully meets the relevant technical indicators of superconducting magnet coil impregnation, and greatly improves the stability of superconducting magnet operation. Description of the Drawings

[0018] Figure 1 This is a schematic diagram of the upper hoop structure of the present utility model.

[0019] Figure 2 This is a schematic diagram of the lower hoop structure of the present utility model.

[0020] Figure 3 This is a schematic diagram of the assembly structure of the present utility model.

[0021] Figure 4 This is a sectional view of the assembly structure of the present utility model.

[0022] See Figures 1 to 4 , where 1 is the upper steel belt, 2 is the storage tank, 3 is the upper locking block, 4 is the liquid level observation tube, 5 is the lower steel belt, 6 is the glue injection interface, 7 is the lower locking block, 8 is the locking screw, 9 is the glue injection pipeline, 10 is the sealing gasket, 11 is the magnet coil, 12 is the epoxy resin, 13 is the magnet wire groove, 14 is the magnet skeleton, 15 is the placement seat, and 16 is the radial sealing ring. Detailed Embodiment

[0023] The following further describes the present utility model with reference to the drawings.

[0024] As Figure 1 , Figure 2 shown, the upper hoop and the lower hoop are fixedly connected by the locking screw 8. The upper hoop includes the upper steel belt 1, the storage tank 2, the upper locking block 3, and the liquid level observation tube 4. The upper steel belt 1 is of an arc-shaped structure. The top of the upper steel belt 1 is connected to the storage tank 2. The left and right sides of the bottom of the upper steel belt 1 are respectively connected to the upper locking block 3. The liquid level observation tube 4 is connected to the upper steel belt 1 between the storage tank 2 and the upper locking block 3. The lower hoop includes the lower steel belt 5, the lower locking block 7, and the glue injection interface 6. The left and right sides of the top of the lower steel belt 5 are respectively connected to the lower locking block 7. The bottom of the lower steel belt 5 is connected to the glue injection interface 6.

[0025] A sealing gasket 10 is provided between the upper locking block 3 of the upper hoop and the lower locking block 7 of the lower hoop.

[0026] The upper locking block 3 and the lower locking block 7 of the upper hoop are of a rectangular module structure, and the upper locking block 3 and the lower locking block 7 are connected to the upper steel belt 1 and the lower steel belt 5 by welding. A number of threaded holes for connecting the locking screw 8 are evenly distributed on the upper locking block 3 and the lower locking block 7.

[0027] The upper steel belt 1 and the lower steel belt 5 are arc-shaped thin-walled plates.

[0028] The bottom of the storage tank 2 penetrates through the top of the upper steel belt 1, and the storage tank 2 is connected to the top of the upper steel belt 1 by sealed welding.

[0029] The bottom of the liquid level observation tube 4 is sleeved and inserted at the liquid level interface on the upper steel belt 1.

[0030] The top of the glue injection interface 6 is connected to the bottom of the lower steel belt 5. The bottom of the glue injection interface 6 is connected to the glue injection pipeline 9. And the glue injection pipeline 9 is sleeved and inserted at the glue injection interface 6. The glue injection pipeline 9 and the glue injection interface 6 are locked tightly by a clamp.

[0031] The upper steel belt 1, the material storage tank 2, the upper locking block 3, the lower steel belt 5, the glue injection interface 6, and the lower locking block 7 are all made of SUS304 stainless steel.

[0032] The liquid level observation tube 4 and the glue injection pipeline 9 are both made of PVC pipes.

[0033] The gasket 10 is made of silicone rubber.

[0034] As Figure 3 , Figure 4 shown, the magnet skeleton 14 (with the magnet coil 11 wound) is placed above the placement seat 15. The radial sealing ring 16 fits on the outer circular surface of the magnet skeleton 14 and is used to seal the mating part of the upper and lower hoops and the magnet skeleton 14. The upper hoop is placed above the magnet skeleton 14 and fits with the radial sealing ring 16. The lower hoop is placed below the magnet skeleton 14 and fits with the radial sealing ring 16. The gasket 10 is placed between the upper locking block 3 and the lower locking block 7 of the upper hoop and the lower hoop. And the upper locking block 3 and the lower locking block 7 are fastened by a number of locking screws 8. The glue injection interface 6 at the bottom of the lower hoop is connected to the glue injection pipeline 9. The glue injection pipeline 9 is connected to the glue injection impregnation equipment. Operate according to the relevant impregnation, curing and other technological processes of the magnet coil. After completion, this device can be removed.

[0035] Compared with the traditional magnet coil impregnation device, the utility model has the following advantages: 1. Simple structure, low manufacturing cost, convenient installation and disassembly, and time saving; 2. Less resin consumption, saving material cost; 3. Easy to operate for degumming after resin curing, and high impregnation uniformity; 4. High matching degree. The steel belt is a thin-walled stainless steel plate, which is more likely to fit tightly with the outer circular surface of the magnet skeleton.

[0036] The utility model has been repeatedly experimentally verified and fully meets the relevant technical indicators of superconducting magnet coil impregnation.

Claims

1. A superconducting magnet coil impregnated and clamped hoop, comprising an upper hoop and a lower hoop, characterized in that: The upper hoop and the lower hoop are fixedly connected by locking screws (8). The upper hoop includes an upper steel strip (1), a material storage tank (2), an upper locking block (3), and a liquid level observation tube (4). The upper steel strip (1) is in an arc-shaped structure. The top of the upper steel strip (1) is connected to the material storage tank (2). The left and right sides of the bottom of the upper steel strip (1) are respectively connected to the upper locking blocks (3). The liquid level observation tube (4) is connected to the upper steel strip (1) between the material storage tank (2) and the upper locking blocks (3). The lower hoop includes a lower steel strip (5), a lower locking block (7), and a glue injection interface (6). The left and right sides of the top of the lower steel strip (5) are respectively connected to the lower locking blocks (7). The bottom of the lower steel strip (5) is connected to the glue injection interface (6).

2. A superconducting magnet coil impregnated and banded hoop according to claim 1, characterized in that: A sealing gasket (10) is provided between the upper locking block (3) of the upper hoop and the lower locking block (7) of the lower hoop.

3. A superconducting magnet coil impregnated and banded hoop according to claim 1 or 2, characterized in that: The upper locking block (3) and the lower locking block (7) of the upper hoop are in a rectangular module structure, and the upper locking block (3) and the lower locking block (7) are connected to the upper steel strip (1) and the lower steel strip (5) by welding. A number of threaded holes for connecting the locking screws (8) are evenly distributed on the upper locking block (3) and the lower locking block (7).

4. A superconducting magnet coil impregnation and clamping hoop according to claim 1, characterized in that: The upper steel strip (1) and the lower steel strip (5) are arc-shaped thin-walled plates.

5. A superconducting magnet coil impregnation and clamping hoop according to claim 1, characterized in that: The bottom of the material storage tank (2) penetrates through the top of the upper steel strip (1), and the material storage tank (2) is connected to the top of the upper steel strip (1) by sealed welding.

6. A superconducting magnet coil impregnation and clamping hoop according to claim 1, characterized in that: The bottom of the liquid level observation tube (4) is sleeved at the liquid level interface on the upper steel strip (1).

7. A superconducting magnet coil impregnation and banding hoop according to claim 1, characterized in that: The top of the glue injection interface (6) is connected to the bottom of the lower steel strip (5). The bottom of the glue injection interface (6) is connected to a glue injection pipeline (9). The glue injection pipeline (9) is sleeved at the glue injection interface (6), and the glue injection pipeline (9) and the glue injection interface (6) are locked by a clamp.

8. A superconducting magnet coil impregnated and banded hoop according to claim 1, characterized in that: The upper steel strip (1), the material storage tank (2), the upper locking block (3), the lower steel strip (5), the glue injection interface (6), and the lower locking block (7) are all made of SUS304 stainless steel.

9. A superconducting magnet coil impregnation and clamping hoop according to claim 1, characterized in that: The liquid level observation tube (4) and the glue injection pipeline (9) are both made of PVC pipes.

10. A superconducting magnet coil impregnated and banded hoop according to claim 2, characterized in that: The sealing gasket (10) is made of silicone rubber.

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