High-field water-cooled magnet apparatus

Abstract

The application discloses a high-field water-cooled magnet device, which comprises a container assembly and a magnet coil assembly, the magnet coil assembly is located in the interior of the container assembly and communicates with the container assembly; the container assembly comprises a hydraulic machine assembly, the hydraulic machine assembly comprises a cylinder body, a piston, a stop ring, an equalizing pad, a first force transmission stop ring, a first anti-rotation pin, a second force transmission stop ring, a second anti-rotation pin, a first force transmission column and a second force transmission column. The application has the advantages that the magnet coil assembly can be axially stressed, the compression force of the magnet coil assembly is improved, and the problems that the coil stress is over-limit and the coil is pulled apart and damaged due to the fact that the radial expansion electromagnetic force of the magnet coil is too large compared with the bit and the insulating sheet.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of water-cooled magnets, in particular to a high-field water-cooled magnet device. BACKGROUND

[0002] A strong magnetic field is an important extreme condition, which provides a special extreme environment for scientific research. The structure of a material and the transition process thereof in the strong magnetic field can be changed, which provides a new way and opens up a new space for the research of physics, chemistry, materials and biology. Because the higher the magnetic field strength is, the greater the change in the electron energy state of a material system is, and thus more peculiar phenomena appear, providing more opportunities for scientific innovation. Therefore, a steady-state strong magnetic field experimental device, as an effective method for obtaining a high magnetic field, has become an important means that cannot be replaced in the current development of the forefront basic research in the fields of condensed matter physics, magnetism, material science, chemistry, life science and medicine.

[0003] A water-cooled magnet is a main experimental device of a steady-state strong magnetic field laboratory. The water-cooled magnet is an extreme condition experimental platform that is concerned because of the characteristics of high magnetic field strength, fast excitation speed and high experimental efficiency. The water-cooled magnet has a high magnetic field strength, which can reach more than 42T, and a power consumption of tens of megawatts. The water-cooled magnet removes a large amount of Joule heat through high-speed deionized cooling water to ensure the normal temperature of the magnet.

[0004] The water-cooled magnet is a device in which a plurality of water-cooled magnet coils are connected in parallel or in series to generate a magnetic field through a certain current. In the running process, the coils are in an extreme working state, and a large amount of heat and strong electromagnetic force are generated. If the coils are not cooled in time and effectively, the coils will be instantly fused into a metal block. If the electromagnetic force is not effectively and reliably borne, the coil assembly will be misaligned, the coil will rotate in the container, and the connection and support between the coils will be damaged, so that the device cannot run.

[0005] The Bitter type water-cooled magnet is completely different from the traditional solenoid in structure. To make the Bitter type water-cooled magnet, copper or copper alloy and insulating sheets are distributed in a large number of holes, and then hundreds or thousands of copper sheets are stacked to form a complete coil. A plurality of coils of different specifications form the magnet. The advantage of the magnet is that high-pressure deionized water quickly flows from the cooling holes, and the heat generated when the magnet is powered on can be quickly removed, so that the cooling effect is very good. At the same time, since the magnet coil is a whole structure, it has very strong mechanical properties. Because of this, the water-cooled magnet using this principle can achieve a magnetic field of 420,000 gauss.

[0006] With the development of magnet technology, especially when the magnetic field strength reaches more than 38.5T, the compression force of the magnet coil is insufficient under the action of the strong electromagnetic force, which causes the Bitter sheets on the magnet coil to be misaligned, deformed or even damaged. SUMMARY

[0007] The technical problem solved by the present application is how to solve the problem of magnet coil dislocation, deformation and even damage due to insufficient compression force.

[0008] To solve the above technical problems, the present application provides the following technical solutions:

[0009] A high-field water-cooled magnet device, comprising a container assembly and a magnet coil assembly, the magnet coil assembly is located inside the container assembly and communicates with the container assembly;

[0010] The container assembly comprises a hydraulic machine assembly, the hydraulic machine assembly comprises a cylinder body, a piston, a stop ring, an equalizing pad, a first force transmission stop ring, a first anti-rotation pin, a second force transmission stop ring, a second anti-rotation pin, a first force transmission column and a second force transmission column, the piston is arranged in the cylinder body, the bottom of the cylinder body is provided with the stop ring and the equalizing pad, the bottom of the equalizing pad is provided with the first force transmission stop ring and the second force transmission stop ring, the first force transmission stop ring is connected with the cylinder body through the first anti-rotation pin, the second force transmission stop ring is connected with the stop ring through the second anti-rotation pin, a plurality of first force transmission columns are connected on the first force transmission stop ring, a plurality of second force transmission columns are connected on the second force transmission stop ring, the first force transmission column is insulatively connected with the innermost coil in the magnet coil assembly, and the second force transmission column is insulatively connected with the coil adjacent to the innermost coil.

[0011] The magnet coil assembly comprises a plurality of coils which are sequentially connected in series in the radial direction, the top end and the bottom end of the coil are connected with the top end and the bottom end inside the container assembly through an insulating anti-rotation structure, and the two innermost coils are insulated through an insulating cylinder assembly.

[0012] Through the arrangement of the hydraulic machine assembly, axial force can be applied to the magnet coil assembly, the compression force of the magnet coil assembly is improved, the ability of the magnet coil assembly to resist external electromagnetic force is increased, and the problems of the coil and the bit and the insulating sheet being dislocated, deformed and even damaged due to insufficient compression force, the coil being overheated and even burned and fused due to the blockage of the water flow channel, and the coil being cracked and damaged due to excessive radial expansion force during the operation of the water-cooled magnet are solved.

[0013] Preferably, the cylinder body is uniformly provided with first anti-rotation pin grooves, the first force transmission stop ring is circumferentially provided with first countersunk bolt connection holes, one end of the first anti-rotation pin is clamped in the first anti-rotation pin groove, and the other end is threadedly connected with the first countersunk bolt connection hole; the stop ring is uniformly provided with second anti-rotation pin grooves, the second force transmission stop ring is circumferentially provided with second countersunk bolt connection holes, one end of the second anti-rotation pin is clamped in the second anti-rotation pin groove, and the other end is threadedly connected with the second countersunk bolt connection hole.

[0014] Preferably, the container assembly further comprises a cylinder wall assembly, a container top cover assembly, a central tube assembly, a container bottom cover, a support leg assembly and an electrical connection assembly, the outer ring of the container top cover assembly is connected with the top end of the cylinder wall assembly, and the inner ring is connected with the outer ring of the hydraulic machine assembly, the inner ring of the hydraulic machine assembly is connected with the top end of the central tube assembly, the outer ring of the container bottom cover is connected with the bottom end of the cylinder wall assembly, and the inner ring is connected with the bottom end of the central tube assembly, and the plurality of electrical connection assemblies are electrically connected with the magnet coil assembly through the cylinder wall assembly.

[0015] Preferably, the cylinder wall assembly comprises an inner cylinder, an outer cylinder, a filter screen, an insulation layer, a first connecting plate, a second connecting plate and an electrical connection assembly, the inner cylinder is arranged in a spaced manner with the outer cylinder, the top end of the inner cylinder and the outer cylinder is connected by the first connecting plate, and the bottom end is connected by the second connecting plate, a partition plate is connected between the middle part of the inner cylinder and the outer cylinder, the first connecting plate, the inner cylinder, the outer cylinder and the partition plate form a high-pressure water inlet cavity, the second connecting plate, the inner cylinder, the outer cylinder and the partition plate form a low-pressure water outlet cavity, high-pressure water enters the high-pressure water inlet cavity and flows out from the low-pressure water outlet cavity after passing through the magnet coil assembly, the water inlet of the high-pressure water inlet cavity is provided with a filter screen, the inner wall of the inner cylinder is solidified with an insulation layer, and the electrical connection assembly penetrates the inner cylinder and the outer cylinder and is electrically connected with the magnet coil assembly.

[0016] Preferably, the magnet coil assembly comprises six A coils, B coils, C coils, D coils, E coils and F coils which are sequentially connected in series in the radial direction, and first and second electrical connection members; one end of the first electrical connection member is electrically connected with the innermost A coil, and the other end is electrically connected with one of the electrical connection assemblies, and one end of the second electrical connection member is electrically connected with the outermost F coil, and the other end is electrically connected with the other electrical connection assembly.

[0017] The A coil and the B coil are insulated by an insulation cylinder assembly, the B coil and the C coil, the C coil and the D coil, the D coil and the E coil, and the E coil and the F coil are insulated by an insulation cylinder;

[0018] The A coil and the B coil are electrically connected by an AB electrical connection plate, the B coil and the C coil are electrically connected by a BC electrical connection plate, the C coil and the D coil are electrically connected by a CD electrical connection plate, the D coil and the E coil are electrically connected by a DE electrical connection plate, and the E coil and the F coil are electrically connected by an EF electrical connection plate, the AB electrical connection plate is insulated and connected with the hydraulic machine assembly, and the BC electrical connection plate, the CD electrical connection plate, the DE electrical connection plate and the EF electrical connection plate are connected with the container assembly through an insulation anti-rotation structure.

[0019] The anti-rotation insulation structure comprises an anti-rotation insulation plate, an anti-rotation metal cylinder, an anti-rotation metal threaded pin and an anti-rotation insulation sleeve, the anti-rotation insulation plate is arranged between the anti-rotation metal cylinder and the corresponding electric connection plate, one end of the anti-rotation metal cylinder away from the electric connection plate is connected with the container assembly, the threaded section of the anti-rotation metal threaded pin is threadedly connected with the corresponding electric connection plate, the other end of the anti-rotation metal threaded pin is sleeved with the anti-rotation insulation sleeve and inserted into the anti-rotation metal cylinder after penetrating through the anti-rotation insulation plate, so that the anti-rotation metal threaded pin is insulatedly connected with the anti-rotation metal cylinder.

[0020] Preferably, the insulation cylinder assembly is formed into a cylindrical structure by axially splicing a plurality of insulation sleeves, the inner wall and the outer wall of each insulation sleeve are provided with second convex ridges arranged along the length direction of the insulation sleeve, and a cooling water flow channel is arranged between adjacent second convex ridges, the inner wall of each insulation sleeve is provided with a plurality of second positioning bosses along the length direction thereof, a clamping groove corresponding to the second bosses is arranged on the outer side of the A coil, and the thickness of the second convex ridges on the outer wall of the adjacent insulation sleeve gradually decreases from the middle to the two ends of the insulation cylinder assembly.

[0021] Preferably, the insulation cylinder assembly is formed into a cylindrical structure by circumferentially splicing a plurality of insulation sheets, the inner wall and the outer wall of each insulation sheet are provided with first convex ridges arranged along the length direction of the insulation sheet, and a cooling water flow channel is arranged between adjacent first convex ridges, the inner wall of each insulation sheet is provided with a first positioning boss at each end portion along the length direction thereof, and the first positioning bosses on the adjacent insulation sheets are abutted to form a boss group, and a clamping groove corresponding to the boss group is arranged on the outer side of the A coil.

[0022] Preferably, the A coil comprises an A magnet coil, an A coil end plate, an A coil upper electrode cylinder, an upper locking nut, an upper anti-loosening nut, an A coil lower electrode cylinder, an insulation sleeve ring, a lower locking nut, a lower anti-loosening nut and an A coil transition connecting cylinder.

[0023] The upper and lower end portions of the A magnet coil are connected with the A coil end plate, one end of the A coil upper electrode cylinder is connected with the A coil end plate at the upper end, the other end is electrically connected with the B coil through the AB electric connection plate, the A coil upper electrode cylinder is further provided with the upper locking nut and the upper anti-loosening nut from bottom to top, and the A coil upper electrode cylinder is electrically connected with the B coil through the upper locking nut and the upper anti-loosening nut, one end of the first force transmission column away from the first force transmission stop ring is insulatedly connected with the AB electric connection plate, one end of the A coil lower electrode cylinder is connected with the A coil end plate at the lower end, the other end is insulatedly connected with the container bottom cover through the A coil transition connecting cylinder, the A coil lower electrode cylinder is further provided with the insulation sleeve ring on the outer wall of the lower end, and the lower locking nut and the lower anti-loosening nut are arranged outside the insulation sleeve ring, a plurality of A coil cooling channels are arranged on the A coil end plate, the A coil upper electrode cylinder and the A coil lower electrode cylinder, the end portions of the first electric connection members extending into the cylinder wall assembly are electrically connected with the A coil transition connecting cylinder;

[0024] A coil end plate is provided with a first limiting groove on the circumferential outer wall, the circumferential outer wall of the A coil upper electrode cylinder is provided with a second limiting groove, and the circumferential outer wall of the A coil lower electrode cylinder is provided with a positioning groove; the first limiting groove, the second limiting groove and the positioning groove are communicated to form a clamping groove of the clamping boss group, and the groove bottom of the positioning groove is attached to the bottom surface of the boss group to support the insulating sheet.

[0025] Preferably, the B coil comprises a B magnet coil, a B coil end plate, a B fixing rod, a B coil upper electrode cylinder, a conductive soft connecting piece, and a B coil lower electrode cylinder.

[0026] The B magnet coil is fixed between the two groups of B coil end plates by the B fixing rod, one end of the B coil upper electrode cylinder is connected with the upper end B coil end plate, and the other end is electrically connected with the AB electric connection plate through the conductive soft connecting piece; the B coil upper electrode cylinder is also electrically connected with the A coil upper electrode cylinder through the upper locking nut and the upper anti-loose nut; one end of the second transmission column away from the second transmission stop ring penetrates through the AB electric connection plate and is insulatedly connected with the B coil upper electrode cylinder; one end of the B coil lower electrode cylinder is connected with the lower end B coil end plate, and the other end is electrically connected with the C coil through the BC electric connection plate; the BC electric connection plate is connected with the container bottom cover through the insulating anti-rotation structure; the B coil end plate, the B coil upper electrode cylinder and the B coil lower electrode cylinder are all provided with a plurality of B coil cooling channels.

[0027] Preferably, the C coil comprises a C magnet coil, a C coil end plate, a C fixing rod, a C coil upper electrode cylinder, and a C coil lower electrode cylinder.

[0028] The C magnet coil is fixed between the two groups of C coil end plates by the C fixing rod, one end of the C coil upper electrode cylinder is connected with the upper end C coil end plate, and the other end is electrically connected with the D coil through the CD electric connection plate; one end of the C coil lower electrode cylinder is connected with the lower end C coil end plate, and the other end is electrically connected with the BC electric connection plate; the CD electric connection plate is connected with the container top cover assembly through the insulating anti-rotation structure; the C coil end plate, the C coil upper electrode cylinder and the C coil lower electrode cylinder are all provided with a plurality of C coil cooling channels.

[0029] The D coil comprises a D magnet coil, a D coil end plate, a D fixing rod, a D coil upper electrode cylinder, and a D coil lower electrode cylinder.

[0030] The D magnet coil is fixed between the two groups of D coil end plates by the D fixing rod, one end of the D coil upper electrode cylinder is connected with the upper end D coil end plate, and the other end is electrically connected with the CD electric connection plate; one end of the D coil lower electrode cylinder is connected with the lower end D coil end plate, and the other end is electrically connected with the E coil through the DE electric connection plate; the DE electric connection plate is connected with the container bottom cover through the insulating anti-rotation structure; the D coil end plate, the D coil upper electrode cylinder and the D coil lower electrode cylinder are all provided with a plurality of D coil cooling channels.

[0031] The E coil comprises an E magnet coil, an E coil end plate, an E fixing rod, and an EF electric connection cylinder.

[0032] The E magnet coil is fixed between the two groups of E coil end plates through the E fixing rod, one end of the EF electric connection cylinder is connected with the upper end plate, the other end is electrically connected with the F coil through an EF electric connection plate, the lower end plate of the E magnet coil is connected with the container bottom cover in an insulating manner, and the EF electric connection plate is connected with the container top cover assembly through an insulating anti-rotation structure.

[0033] The F coil comprises an F magnet coil, an F coil end plate, an F fixing rod, an F peripheral fastening rod, and an F transition electric connection seat.

[0034] The F magnet coil is fixed between the two groups of F coil end plates through the F fixing rod, the two groups of F coil end plates on the outer side of the F magnet coil are connected in a tensioning manner through the plurality of F peripheral fastening rods, the upper end plate is electrically connected with the EF electric connection plate, and the lower end plate is connected with the container bottom cover in an insulating manner; the end of the second electric connection piece extending into the cylinder wall assembly is electrically connected with the F transition electric connection seat fixed on the lower end plate of the F coil end plate; and the F coil end plate is provided with a plurality of F coil axial cooling channels.

[0035] Compared with the prior art, the beneficial effects of the present application are:

[0036] 1. Through the setting of the hydraulic machine assembly, axial force can be applied to the magnet coil assembly, the compression force of the magnet coil assembly is improved, the ability of the magnet coil assembly to resist the electromagnetic force is increased, the problems of the coil overheating and even melting, the coil stress exceeding the limit and the coil being torn and damaged due to the excessive radial expansion force of the coil are solved, and the problems of the bit and the insulating sheet of the magnet coil being expanded radially, being out of position, and the water flow channel being blocked are solved.

[0037] 2. Through the setting of the insulating anti-rotation structure, the circumferential electromagnetic rotation force generated during the operation of the water-cooled magnet device belongs to hard connection transmission in the transmission process, the anti-rotation metal cylinder replaces the insulating anti-rotation structure of the insulating composite material in the prior art, the high strength of the metal of the anti-rotation metal cylinder is utilized, the problem of insufficient structural strength of the traditional structure is solved, and the damage of the electric connection plate and the coil is prevented.

[0038] 3. Through the setting of the sheet-shaped segmented insulating cylinder assembly, not only the insulation effect is achieved, but also the positioning effect of the A coil is achieved by replacing the fixing rod; meanwhile, the insulating sheet is sleeved on the outer wall of the A coil in a piece-by-piece manner, the installation difficulty is greatly reduced, and a good tight assembly effect is achieved.

[0039] 4、The electric connection of the A coil and the B coil in the application adopts two-way parallel technology, that is, the first way is electrically connected through the upper locking nut and the upper anti-loosening nut, and the second way is connected through the conductive soft connecting piece, so that larger current can be stably transmitted in a compact space; meanwhile, during the operation of the water-cooled magnet device, the A coil and the B coil can realize stable electric connection under different compression amounts through the conductive soft connecting piece under the action of electromagnetic force and hydraulic pressure of the hydraulic machine assembly.

[0040] 5、The insulation cylinder assembly is formed into a ring type segmented cylindrical structure by axially splicing and combining a plurality of insulation sleeves, the insulation sleeves gradually decrease in thickness from the middle of the coil to both ends in a multi-section second convex bead manner, sufficient buffer space is reserved for each section of the coil, and the influence on the outer coil is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0041] Figure 1 It is a structure schematic view of the high-field water-cooled magnet device in the first embodiment of the application.

[0042] Figure 2 It is a structure schematic view of the container assembly in the first embodiment of the application.

[0043] Figure 3 It is another structure schematic view of the high-field water-cooled magnet device in the first embodiment of the application.

[0044] Figure 4 It is a structure schematic view of the hydraulic machine assembly in the first embodiment of the application.

[0045] Figure 5 It is an assembly view of the hydraulic machine assembly and the center tube assembly in the first embodiment of the application.

[0046] Figure 6 It is a structure schematic view of the magnet coil assembly in the first embodiment of the application.

[0047] Figure 7 It is a sectional view of the A coil and the B coil in the first embodiment of the application.

[0048] Figure 8 It is a structure schematic view of the insulation cylinder assembly in the first embodiment of the application.

[0049] Figure 9 It is a structure schematic view of the insulation sheet in the first embodiment of the application.

[0050] Figure 10 It is an assembly view of the A coil and the B coil in the first embodiment of the application.

[0051] Figure 11 It is a local structure schematic view of the A coil and the B coil in the first embodiment of the application.

[0052] Figure 12 Another partial structure schematic view of the A coil and the B coil in the embodiment one of the present application;

[0053] Figure 13 A structure schematic view of the A coil end plate in the embodiment one of the present application;

[0054] Figure 14 A structure schematic view of the first A coil upper electrode cylinder in the embodiment one of the present application;

[0055] Figure 15 A structure schematic view of the second A coil upper electrode cylinder in the embodiment one of the present application;

[0056] Figure 16 A structure schematic view of the first A coil lower electrode cylinder in the embodiment one of the present application;

[0057] Figure 17 A structure schematic view of the second A coil lower electrode cylinder in the embodiment one of the present application;

[0058] Figure 18 A structure schematic view of the insulation anti-rotation structure in the embodiment one of the present application;

[0059] Figure 19 An assembly view of the insulation anti-rotation structure and the BC electric connection plate in the embodiment one of the present application;

[0060] Figure 20 A structure schematic view of the B coil end plate in the embodiment one of the present application;

[0061] Figure 21 A structure schematic view of the first B coil upper electrode cylinder in the embodiment one of the present application;

[0062] Figure 22 A structure schematic view of the second B coil upper electrode cylinder in the embodiment one of the present application;

[0063] Figure 23 A structure schematic view of the first B coil lower electrode cylinder in the embodiment one of the present application;

[0064] Figure 24 A structure schematic view of the second B coil lower electrode cylinder in the embodiment one of the present application;

[0065] Figure 25 A structure schematic view of the C coil in the embodiment one of the present application;

[0066] Figure 26 A structure schematic view of the C coil end plate in the embodiment one of the present application;

[0067] Figure 27 A structure schematic view of the C coil upper electrode cylinder in the embodiment one of the present application;

[0068] Figure 28 Figure 16 is a structural schematic diagram of the C-coil lower electrode cylinder in the first embodiment of the present application;

[0069] Figure 29 Figure 17 is a structural schematic diagram of the E-coil in the first embodiment of the present application;

[0070] Figure 30 Figure 18 is a structural schematic diagram of the E-coil end plate in the first embodiment of the present application;

[0071] Figure 31 Figure 19 is a structural schematic diagram of the F-coil in the first embodiment of the present application;

[0072] Figure 32 Figure 20 is another structural schematic diagram of the F-coil in the first embodiment of the present application;

[0073] Figure 33 Figure 21 is a structural schematic diagram of the F-coil end plate in the first embodiment of the present application;

[0074] Figure 34 Figure 22 is a structural schematic diagram of the F-transition electrical connector in the first embodiment of the present application;

[0075] Figure 35 Figure 23 is a partial structural schematic diagram of the magnet-coil assembly in the first embodiment of the present application;

[0076] Figure 36 Figure 24 is a structural schematic diagram of the insulating cylinder assembly in the second embodiment of the present application;

[0077] Figure 37 Figure 25 is a top view of the insulating cylinder assembly in the second embodiment of the present application;

[0078] Figure 38 Figure 26 is a partial structural schematic diagram of the insulating cylinder assembly in the second embodiment of the present application. DETAILED DESCRIPTION

[0079] In order to help those skilled in the art understand the technical solutions of the present application, the technical solutions of the present application are further described in conjunction with the drawings in the specification.

[0080] In the present application, unless otherwise explicitly specified and limited, the terms “mounting”, “connection”, “connecting”, “fixing” and the like should be understood in a broad sense, for example, can be fixed connection, can also be detachable connection, or can be integrated; can be mechanical connection, can also be electrical connection, or can be communication; can be direct connection, or can be indirect connection through an intermediate medium; can be the communication inside two elements or the interaction relationship between two elements. Those skilled in the art can understand the specific meanings of the above terms in the present application according to the specific circumstances.

[0081] In the present application, unless specifically and expressly defined otherwise, the terms "first", "second" are used only for descriptive purpose and are not to be construed as indicating or implying relative importance or an indicated number of technical features. Thus, features defined with "first", "second" can include one or more such features explicitly or implicitly. In the description of the present application, the meaning of "a plurality of" is two or more, unless specifically and expressly defined otherwise.

[0082] Embodiment one

[0083] Referring to Figure 1 The embodiment discloses a high-field water-cooled magnet device, which comprises a container assembly 1 and a magnet coil assembly 2, and the magnet coil assembly 2 is located in the interior of the container assembly 1 and communicates with the container assembly 1.

[0084] Referring to Figure 2 and Figure 3 The container assembly 1 comprises a cylinder wall assembly 11, a container top cover assembly 12, a hydraulic machine assembly 13, a central pipe assembly 14, a container bottom cover 15, a support leg assembly 16 and an electric connection assembly 17, the top of the cylinder wall assembly 11 is provided with the container top cover assembly 12 and the hydraulic machine assembly 13, the bottom of the cylinder wall assembly 11 is provided with the container bottom cover 15, the bottom of the container bottom cover 15 is uniformly provided with four support leg assemblies 16, the bottom of the magnet coil assembly 2 is insulatively connected with the top of the container bottom cover 15, the top of the magnet coil assembly 2 is insulatively connected with the bottom of the container top cover assembly 12 and the hydraulic machine assembly 13, and the plurality of electric connection assemblies 17 penetrate through the cylinder wall assembly 11 and are electrically connected with the magnet coil assembly 2.

[0085] The cylinder wall assembly 11 comprises an inner cylinder 111, an outer cylinder 112, a filter screen 113, an insulation layer 114, a first connecting plate 115, a second connecting plate 116, a partition plate 117, the inner cylinder 111 is arranged in a spaced manner with the outer cylinder 112, the top ends of the inner cylinder 111 and the outer cylinder 112 are connected through the first connecting plate 115, the bottom ends are connected through the second connecting plate 116, the partition plate 117 is connected to the middle part between the inner cylinder 111 and the outer cylinder 112, the first connecting plate 115, the inner cylinder 111, the outer cylinder 112 and the partition plate 117 form a high-pressure water inlet cavity, the second connecting plate 116, the inner cylinder 111, the outer cylinder 112 and the partition plate 117 form a low-pressure water outlet cavity, high-pressure water enters the high-pressure water inlet cavity and flows out of the low-pressure water outlet cavity after passing through the magnet coil assembly 2, the water inlet of the high-pressure water inlet cavity is provided with the filter screen 113, the setting of the filter screen 113 prevents impurities in the cooling water from entering the magnet coil assembly 2, and ensures the safe operation of the water-cooled magnet, and the inner wall of the inner cylinder is solidified with the insulation layer 114 for insulation with the magnet coil assembly 2. Specifically, the high-pressure cooling water enters the inner cylinder 111 through the water inlets of the two symmetric high-pressure water inlets, enters the space above the magnet coil assembly 2 in the inner cylinder 111, and then enters the magnet coil assembly 2, flows into each coil and then enters the space below the magnet coil assembly 2, and then flows out through the low-pressure water outlet cavity.

[0086] In the embodiment, the outer wall of the outer cylinder 112 has a blowdown hole 1121, an exhaust hole 1122 and a signal line hole 1123, four electric connection pipes 1124 are arranged on the upper end and the lower end of the outer cylinder 112 respectively, the four electric connection pipes 1124 on the upper end are connected through countersunk screws, sealing rings and a reserved electric connection pipe sealing plate, the four electric connection pipes 1124 on the lower end are connected through countersunk screws and sealing rings with the electric connection assembly 17, the electric connection assembly 17 penetrates the inner cylinder 111 and the outer cylinder 112 and is electrically connected with the magnet coil assembly 2, and the electric connection assembly 17 is composed of a transition electric connection rod, a transition electric connection rod locking nut, a transition electric connection rod insulation sealing plate and a transition electric connection rod insulation cylinder.

[0087] Referring to Figure 2 , the container top cover assembly 12 comprises a first container upper cover 121 and a second container upper cover 122, the first container upper cover 121 is a stepped annular plate, the edge of the first container upper cover 121 is connected with the top surface of the first connecting plate 115, the inner circle of the first container upper cover 121 is sealingly connected with the outer circle of the second container upper cover 122, the second container upper cover 122 is a large-span and large-depth U-shaped stepped annular plate, and the inner circle of the second container upper cover 122 is sealingly connected with the hydraulic machine assembly 13; six signal lines and exhaust holes are arranged on the first container upper cover 121, which can be used to lead out signal lines for monitoring the running state of the magnet coil assembly 2, and can also be used to monitor the air in the initial water injection discharge device of the magnet coil assembly 2, and the unused holes are sealingly connected with the first container upper cover 121 through countersunk screws and sealing rings.

[0088] In this embodiment, by setting the first container top cover assembly 12 to the large-span and large-depth U-shaped sunken top cover structure of the first container top cover 121 and the second container top cover 122, more specifications of experimental scientific research equipment can be compatible, and the axial size margin of the magnet coil assembly 2 is improved. The distance from the upper end surface of the upper cover of the magnet center tube to the axial center surface of the magnet coil of the conventional experimental scientific research equipment is usually about 650mm. The higher the high-strength water-cooled magnet field and the larger the current, the larger the axial size of the magnet coil and each support connecting piece is required.

[0089] In addition, the first connecting plate 115 is fixedly connected with the first container top cover 121, the first container top cover 121 is fixedly connected with the second container top cover 122, the second container top cover 122 is fixedly connected with the hydraulic machine assembly 13, and the second connecting plate 116 is fixedly connected with the container bottom cover 15 through positioning pins and bolts. Since the container top cover assembly 12, the hydraulic machine assembly 13 and the container bottom cover 15 are composed of multiple parts, the weight of each part is relatively large. In this embodiment, the pin connection is performed through the positioning pins, so that the assembly of the container top cover assembly 11 and the container bottom cover 15 is facilitated and the installation precision is ensured.

[0090] Referring to Figure 4, the hydraulic machine assembly 13 comprises a cylinder body 1301, a piston 1302, a stop ring 1303, an equalizing pad 1304, a limiting block 1305, a first force transmission stop ring 1306, a first anti-rotation pin 1307, a second force transmission stop ring 1308, a second anti-rotation pin 1309, a first insulation sleeve 1310, a first force transmission column 1311, a second force transmission column 1312, and an insulation plate 1313, the inner ring of the upper end of the cylinder body 1301 is sealingly connected with the outer part of the top end of the central pipe assembly 14, the outer ring of the upper end of the cylinder body 1301 is connected with the inner ring of the upper cover of the second container 122, the piston 1302 and the limiting block 1305 are arranged in the cylinder body 1301, the limiting block 1305 is used to limit the movement position of the piston 1302 in the cylinder body 1301, the bottom of the cylinder body 1301 is provided with the stop ring 1303 and the equalizing pad 1304, the bottom of the equalizing pad 1304 is provided with the first force transmission stop ring 1306 and the second force transmission stop ring 1308, the cylinder body 1301 is uniformly provided with a first anti-rotation pin groove, the first force transmission stop ring 1306 is circumferentially provided with a first countersunk bolt connection hole, one end of the first anti-rotation pin 1307 is clamped in the first anti-rotation pin groove on the cylinder body 1301, and the other end is threadedly connected with the first countersunk bolt connection hole on the first force transmission stop ring 1306, which is used to limit the rotation of the first force transmission stop ring 1306, the stop ring 1306 is uniformly provided with a second anti-rotation pin groove, the second force transmission stop ring 1308 is circumferentially provided with a second countersunk bolt connection hole, one end of the second anti-rotation pin 1309 is clamped in the second anti-rotation pin groove on the stop ring 1306, and the other end is threadedly connected with the second countersunk bolt connection hole on the second force transmission stop ring 1308, which is used to limit the rotation of the second force transmission stop ring 1308; a plurality of first force transmission columns 1311 are connected to the first force transmission stop ring 1306, one end of the first force transmission column 1311 away from the first force transmission stop ring 1306 is insulatedly connected with the innermost coil in the magnet coil assembly 2, a plurality of second force transmission columns 1312 are connected to the second force transmission stop ring 1307, and a first insulation sleeve 1310 is arranged on the position where the second force transmission column 1312 is connected to the second force transmission stop ring 1307 for insulation, one end of the second force transmission column away from the second force transmission stop ring 1307 is insulatedly connected with the coil adjacent to the innermost coil in the magnet coil assembly 2, and an insulation plate 1313 is further arranged between the magnet coil assembly 2 and the first force transmission stop ring 1306 for insulation.

[0091] Further, a second insulation sleeve 1314 is arranged on the position where the first force transmission column 1311 is insulatedly connected with the innermost coil in the magnet coil assembly 2, which is used for insulation between the first force transmission column 1311 and the magnet coil assembly 2. A third insulation sleeve 1315 is arranged on the bottom of the second force transmission column 1312, which is used for insulation between the second force transmission column 1312 and the magnet coil assembly 2.

[0092] Still further, the cylinder body 1301 is provided with a hydraulic medium input pipe 1316 for inputting hydraulic medium into the cylinder body 1301.

[0093] Specifically, by pushing the piston 1302 to move downward, hydraulic pressure is transmitted to the equalizing pad 1304, and then to the first force transmission stop ring 1306, the second force transmission stop ring 1308, the first force transmission column 1311, and the second force transmission column 1312, and finally to the two innermost coils of the magnet coil assembly 2.

[0094] In this embodiment, by providing the hydraulic machine assembly 13, axial force can be applied to the magnet coil assembly 2 to increase the compression force on the magnet coil assembly 2, thereby increasing the ability of the magnet coil assembly 2 to resist the electromagnetic force. This solves the problem of the magnet coil expanding radially due to excessive electromagnetic force, causing the coil to overheat and even melt, and the problem of the coil being pulled apart or damaged due to excessive radial expansion force.

[0095] Referring to Figure 5 , the center tube assembly 14 includes a center tube 141, an upper gland 142, and a lower gland 143. The center tube 140 passes through the magnet coil assembly 2, the cylinder body 1301, and the container bottom cover 15. The center tube 141 is insulated from the innermost coils of the magnet coil assembly 2 by an insulating sleeve. The inner ring of the cylinder body 1301 is sealed and connected to the top outer part of the center tube 141 by the upper gland 142. The inner ring of the container bottom cover 15 is sealed and connected to the bottom outer part of the center tube 141 by the lower gland 143. In this embodiment, the center tube 141 is a hollow metal tube with an insulating layer wrapped around its outer surface. The material is a combination of glass filaments and epoxy resin that is cured as a whole on the outer wall of the metal tube. The outer wall is machined to have multiple evenly distributed grooves as cooling water channels. This structure has good insulation and strong structural stability. Traditional methods of bonding insulating strips are prone to falling off, which can block the cooling channels.

[0096] The container bottom cover 15 is a monolithic structure with an upwardly convex shape. The top and bottom of the cylinder wall assembly 11 are extended upward and downward, respectively, and then connected to the container top cover assembly 12 and the container bottom cover 15. This expands the top and bottom spaces inside the container assembly 1, increasing the installation space and water flow space of the magnet coil assembly 2 to meet the cooling and axial size requirements of the magnet coil. Furthermore, the container top cover assembly 12 is designed as a sunken structure, and the container bottom cover 15 is designed as an upwardly convex structure, which can reduce the axial deformation of the container top cover assembly 12 and the container bottom cover 15, especially in the central part.

[0097] The outer circumferential surface of the container bottom cover 13 is provided with symmetrical lifting threaded holes for the installation and maintenance of the water-cooled magnet.

[0098] Referring again to Figure 3The support leg assembly 16 comprises a support leg 161 and a support ear 162, the upper end of the support leg 161 is fixed vertically on the outer wall of the outer cylinder 112 through the support ear 162, and the lower end is connected with the ground foot stud through a nut, for fixing the water-cooled magnet on the ground.

[0099] Referring to Figure 6 The magnet coil assembly 2 comprises a plurality of radially sleeved coils, adjacent coils are insulated, and the outer wall of the central pipe 141 and the innermost coil and the outermost coil and the inner wall of the inner cylinder 111 are insulated; adjacent coils are connected in series; the top and bottom ends of the coils are connected with the top or bottom end inside the container assembly 2 through the insulation anti-rotation structure 9.

[0100] The magnet coil assembly 2 comprises six radially sleeved coils A coil 21, B coil 22, C coil 23, D coil 24, E coil 25, F coil 26, and first and second electrical connection components 27 and 28; one end of the first electrical connection component 27 is electrically connected with the innermost A coil 21, and the other end is electrically connected with one of the electrical connection components 17; one end of the second electrical connection component 28 is electrically connected with the outermost F coil 26, and the other end is electrically connected with the other electrical connection component 17.

[0101] The A coil 21 and the B coil 22 are electrically connected through the AB electrical connection plate 4, the B coil 22 and the C coil 23 are electrically connected through the BC electrical connection plate 5, the C coil 23 and the D coil 24 are electrically connected through the CD electrical connection plate 6, the D coil 24 and the E coil 25 are electrically connected through the DE electrical connection plate 7, the E coil 25 and the F coil 26 are electrically connected through the EF electrical connection plate 8, the AB electrical connection plate 4 is insulated and connected with the hydraulic machine assembly 13, and the BC electrical connection plate 5, the CD electrical connection plate 6, the DE electrical connection plate 7 and the EF electrical connection plate 8 are connected with the container assembly 1 through the insulation anti-rotation structure 9.

[0102] Referring to Figure 7 The A coil 21 and the B coil 22 are insulated through the insulation cylinder assembly 3, the B coil 22 and the C coil 23, the C coil 23 and the D coil 24, the D coil 24 and the E coil 25, and the E coil 25 and the F coil 26 are insulated through the insulation cylinder, and it should be noted that the insulation cylinder can be processed in the existing market.

[0103] Referring to Figure 8 and Figure 9The insulating cylinder assembly 3 is formed by circumferential splicing of a plurality of insulating sheets 31 into a cylindrical structure. The inner wall and the outer wall of each insulating sheet 31 are provided with first convex ridges 311 along the length direction of the insulating sheet 31. The first convex ridges 311 between adjacent insulating sheets form cooling water channels. The inner wall of each insulating sheet 31 is provided with a first positioning boss 312 at both ends along the length direction. The first positioning bosses 312 on adjacent insulating sheets are fitted to form a boss group. A clamping groove (not shown in the figure) corresponding to the boss group is provided on the outer side of the A coil 21.

[0104] Referring to Figure 10 to Figure 12 The A coil 21 comprises an A magnet coil 211, an A coil end plate 212, an A coil upper electrode cylinder 213, an upper locking nut 214, an upper anti-loosening nut, an A coil lower electrode cylinder 215, an insulating sleeve ring 216, a lower locking nut 217, a lower anti-loosening nut, and an A coil transition connecting cylinder 218. The A coil upper electrode cylinder 213 comprises a first A coil upper electrode cylinder 2131 and a second A coil upper electrode cylinder 2132 connected together. The A coil lower electrode cylinder 215 comprises a first A coil lower electrode cylinder 2151 and a second A coil lower electrode cylinder 2152 connected together.

[0105] The A magnet coil 211 is connected to the A coil end plate 212 at both ends. The first A coil upper electrode cylinder 2131 is connected to the A coil end plate 212 at the upper end, away from the second A coil upper electrode cylinder 2132. The second A coil upper electrode cylinder 2132 is electrically connected to the B coil 22 through an AB electrical connecting plate 4, and is further provided with the upper locking nut 214 and the upper anti-loosening nut from bottom to top. The second A coil upper electrode cylinder 2132 is electrically connected to the B coil 22 through the upper locking nut 214 and the upper anti-loosening nut. The first transmission column 1311 is insulatedly connected to the AB electrical connecting plate 4 through a hydraulic insulating sleeve, away from the first transmission stop ring 1306. The first A coil lower electrode cylinder 2151 is connected to the A coil end plate 212 at the lower end, away from the second A coil lower electrode cylinder 2152. The second A coil lower electrode cylinder 2152 is insulatedly connected to the container bottom cover 15 through the A coil transition connecting cylinder 218, away from the first A coil lower electrode cylinder 2151. The insulating sleeve ring 216 is provided on the outer wall of the second A coil lower electrode cylinder 2152 at the lower end, for insulation with the B coil 22. The lower locking nut 217 and the lower anti-loosening nut are provided outside the insulating sleeve ring 216, for locking the A coil lower electrode cylinder 215. The end of the first electrical connecting piece 27 extending into the cylinder wall assembly 11 is electrically connected to the A coil transition connecting cylinder 218.

[0106] Referring to Figure 13 to Figure 17A coil end plate 212, A coil upper electrode cylinder 213, A coil lower electrode cylinder 215 are provided with a plurality of A coil cooling channels, wherein the A coil end plate 212, the first A coil upper electrode cylinder 2131, and the first A coil lower electrode cylinder 2151 are provided with a plurality of A coil axial cooling channels 2121, and the second A coil upper electrode cylinder 2132 and the second A coil lower electrode cylinder 2152 are provided with a plurality of A coil lateral cooling channels 21321.

[0107] The plurality of radial threaded holes provided on the second A coil upper electrode cylinder 2132 are used for fastening connection with the AB electric connection plate 4 through screws, and the second A coil upper electrode cylinder 2132 is provided with a pressure bearing surface 1, a pressure bearing surface 2, and a pressure bearing surface 3. The pressure bearing surface 1 is used to bear the force transmitted to the A coil 21 by the B coil 22 through the upper locking nut 214 and the upper anti-loose nut, and simultaneously realize the electrical connection of the A coil 21 and the B coil 22. The pressure bearing surface 2 is used to bear the hydraulic pressure transmitted by the hydraulic machine assembly 13 to the upper hydraulic insulation sleeve 1313, and a plurality of axial light holes provided thereon are used to install the hydraulic insulation sleeve. The pressure bearing surface 3 is the connecting surface of the second A coil upper electrode cylinder 2132 and the first A coil upper electrode cylinder 2131.

[0108] The first A coil lower electrode cylinder 2151 is provided with a plurality of annular grooves and A coil axial cooling channels 2121 on the end faces of the large-diameter ends, which improves the cooling water flow. A plurality of threaded holes are provided on the end face of the small-diameter end, which are used for circumferential positioning with the second A coil lower electrode cylinder 2152 through threaded cylindrical pins. The first A coil lower electrode cylinder 2151 is provided in a horn shape, which improves the water flow channel inside the A coil 21. The second A coil lower electrode cylinder 2152 is provided with a pressure bearing surface 4, a pressure bearing surface 5, and a pressure bearing surface 6. The pressure bearing surface 4 is used to install the insulation sleeve ring 216, realize the lower insulation between the A coil 21 and the B coil 22, and bear the force transmitted to the A coil 21 by the B coil 22 through the lower locking nut 217 and the lower anti-loose nut. The pressure bearing surface 5 is used to bear the hydraulic pressure applied by the hydraulic machine assembly 13, and a plurality of axial light holes provided thereon are used to install the A coil transition connecting cylinder 218. The pressure bearing surface 6 is the connecting surface of the first A coil lower electrode cylinder 2151 and the second A coil lower electrode cylinder 2152.

[0109] A coil end plate 212 is provided with a first limiting groove 2122 on the circumferential outer wall, the first A coil upper electrode cylinder 2131 is provided with a second limiting groove 21311 on the circumferential outer wall, the first A coil lower electrode cylinder 2151 is provided with a positioning groove 21511 on the circumferential outer wall, the first limiting groove 2122, the second limiting groove 21311 and the positioning groove 21511 are communicated to form a clamping groove for clamping the boss group composed of two first positioning bosses 312, the positioning groove 21511 is in a stepped shape, the groove bottom of the positioning groove 21511 is used for abutting the bottom surface of the boss group to limit the boss group, so that the insulation sheet 31 cannot move downward when the high-pressure cooling water flows downward, thereby supporting the insulation sheet 31, finally supporting the insulation cylinder assembly 3, preventing the insulation cylinder assembly 3 from moving up and down, and realizing the insulation between the magnet coils in the A coil 21 and the B coil 22 through the insulation cylinder assembly 3.

[0110] It should be noted that the traditional insulation cylinder is a whole, and the inner wall and the outer wall are provided with a plurality of ribs, and the cooling water channels are arranged between adjacent ribs. Each rib is abutted on the circumferential side wall of the coil to ensure that there is sufficient cooling water flow channel between the inner wall of the insulation cylinder and the internal coil and between the outer wall and the outer wall coil. In the embodiment, the A coil 21 and the B coil 22 are electrically connected in series, and the A coil 21 has no fixed rod and cannot be positioned and fixed by itself. During the operation of the water-cooled magnet device, the coil is subjected to electromagnetic force and will rotate circumferentially, so the coil must be positioned, otherwise the cooling holes on the coil will be misaligned and blocked due to rotation of the coil, resulting in burning of the coil due to heat not being timely removed by the cooling water. The traditional insulation cylinder cannot realize the positioning of the A coil 21.

[0111] In the embodiment, the boss group on the inner wall of each insulation sheet 31 is clamped in the first limiting groove 2122, the second limiting groove 21311 and the positioning groove 21511, so that the electromagnetic rotating force of the coil is transmitted to the A coil end plate 212 at both ends of the A magnet coil 211. The A coil end plate 212 is transmitted to the hydraulic machine assembly 13 and the container bottom cover 15 through the A coil upper electrode cylinder 213 and the A coil lower electrode cylinder 215 respectively, thereby preventing rotation of the A magnet coil 211 and realizing positioning of the A magnet coil 211. At the same time, the insulation between the magnet coils in the A coil 21 and the B coil 22 is realized. Therefore, the insulation cylinder assembly 3 in the embodiment not only plays an insulation role, but also replaces the fixed rod to play a positioning role for the A magnet coil 211. Secondly, the fixed rod is cancelled, so that the clamping groove of the bit sheet on the A magnet coil 211 is smaller than the fixing hole used for fixing the fixed rod before. The current density distribution of the bit sheet is inversely proportional to the radius, the insulation sheet 31 is placed in the low current density area of the bit sheet, the current carrying capacity is improved, and the magnetic field strength is improved.

[0112] In addition, considering the assembly gap of installation is as small as possible, but the radial expansion force and deformation amount during the operation of the water-cooled magnet device and the engineering practice (thousands of conductor pieces are stacked together to form the coil, and there is a certain deviation from the ideal value in the inner and outer diameters), the implementation space of the insulating cylinder is only 1.6mm, and if the insulating cylinder assembly 3 in this embodiment is installed by using an integral insulating cylinder, due to the small implementation space, and the insulating cylinder also needs to play a positioning role, the positioning needs to be tightly assembled, and the gap is too large to play a positioning role, thereby causing the installation of the integral insulating cylinder to be extremely difficult, and even the insulating cylinder cannot be sleeved into the outer wall of the A magnet coil 211. In the embodiment, the segmented insulating cylinder assembly 3 composed of multiple insulating pieces 31 is used, and the insulating pieces 31 are sleeved on the outer wall of the A coil 21 one by one, which greatly reduces the installation difficulty and can achieve good tight assembly effect.

[0113] Referring to Figure 10 to Figure 12 , the B coil 22 includes a B magnet coil 221, a B coil end plate 222, a B fixing rod 223, a B coil upper electrode cylinder 224, a conductive soft connecting piece 225, and a B coil lower electrode cylinder 226. The B coil upper electrode cylinder 224 includes a first B coil upper electrode cylinder 2241 and a second B coil upper electrode cylinder 2242 connected together, and the B coil lower electrode cylinder 226 includes a first B coil lower electrode cylinder 2261 and a second B coil lower electrode cylinder 2262 connected together.

[0114] The B magnet coil 221 is fixed between the two groups of B coil end plates 222 through the B fixing rod 223. The first B coil upper electrode cylinder 2241 is connected to the B coil end plate 222 at the end away from the second B coil upper electrode cylinder 2242. The second B coil upper electrode cylinder 2242 is electrically connected to the AB electrical connection plate 4 through the conductive soft connecting piece 225, and is also electrically connected to the second A coil upper electrode cylinder 2132 through the upper locking nut 214 and the upper anti-loose nut. The second transmission column 1312 penetrates through the AB electrical connection plate 4 and is insulatedly connected to the second B coil upper electrode cylinder 2242 through the hydraulic insulation sleeve. The first B coil lower electrode cylinder 2261 is connected to the B coil end plate 222 at the end away from the second B coil lower electrode cylinder 2262. The second B coil lower electrode cylinder 2262 is electrically connected to the C coil 23 through the BC electrical connection plate 5, and the BC electrical connection plate 5 is insulatedly connected to the container bottom cover 15 through the insulation anti-rotation structure 9.

[0115] Referring to Figure 18, the anti-rotation insulation structure 9 comprises an anti-rotation insulation plate 91, an anti-rotation metal cylinder 92, an anti-rotation metal threaded pin 93 and an anti-rotation insulation sleeve 94, the anti-rotation insulation plate 91 is arranged between the anti-rotation metal cylinder 92 and the corresponding electric connection plate, the end of the anti-rotation metal cylinder 92 away from the electric connection plate is connected with the container assembly 1, the threaded segment of the anti-rotation metal threaded pin 93 is threadedly connected with the corresponding electric connection plate, the other end is sleeved with the anti-rotation insulation sleeve 94 and is inserted into the anti-rotation metal cylinder 92 after penetrating through the anti-rotation insulation plate 91, so that the anti-rotation metal threaded pin 93 is insulatedly connected with the anti-rotation metal cylinder 92, and specifically, Figure 19 Taking the connection of the anti-rotation insulation structure 9 with the BC electric connection plate 5 as an example, the BC electric connection plate 5 is connected with the B coil 22 and the C coil 23 through screws respectively, the anti-rotation insulation plate 91 and the anti-rotation metal cylinder 92 are arranged on the bottom surface of the BC electric connection plate 5 in sequence, the threaded segment of the anti-rotation metal threaded pin 93 is threadedly connected with the BC electric connection plate 5, and the other end is sleeved with the anti-rotation insulation sleeve 94 and is inserted into the anti-rotation metal cylinder 92 after penetrating through the anti-rotation insulation plate 91. Further, a plurality of cooling water channels are arranged on the anti-rotation metal cylinder 92.

[0116] It should be noted that the existing insulation anti-rotation mechanism adopts a cylindrical insulation anti-rotation structure. The water-cooled magnet can generate an electromagnetic torque of 9896 N*m in actual operation. Each coil transmits the circumferential electromagnetic force to the insulation anti-rotation structure through the electric connection plate, and then transmits the circumferential rotating force to the container assembly 1 through the insulation anti-rotation structure. Therefore, the insulation anti-rotation structure needs to withstand the large electromagnetic torque to prevent the coil from rotating. At present, in order to play an insulation role, the insulation anti-rotation structure is made of an insulation composite material, and a plurality of pin holes are formed at both ends. One end of the insulation anti-rotation structure is connected with the electric connection plate by inserting a pin into the pin hole, and the other end is connected with the container assembly 1 by inserting a pin into the pin hole, thereby transmitting the rotating force to the container assembly 1. In addition, in order to achieve the cooling effect, a plurality of through cooling holes are formed on the circumferential surface of the cylindrical insulation anti-rotation structure. Due to the plurality of pin holes and cooling holes formed on the insulation anti-rotation structure, the strength of the insulation composite material of the cylindrical insulation anti-rotation structure is greatly reduced, and the water-cooled magnet cannot withstand the strong electromagnetic rotating force during operation, resulting in damage to the electric connection plate and the coil. In the present embodiment, the anti-rotation metal cylinder 92 and the anti-rotation metal threaded pin 93 are both made of metal material, and one end of the anti-rotation metal threaded pin 93 is connected with the anti-rotation metal cylinder 92 in an insulated manner, and the other end penetrates through the anti-rotation insulation plate 91 and is connected with the electric connection plate, so that a hard connection is formed between the electric connection plate and the anti-rotation metal cylinder 92. The anti-rotation insulation plate 91 arranged between the anti-rotation metal cylinder 92 and the corresponding electric connection plate plays an insulation role. The circumferential electromagnetic rotating force generated by the water-cooled magnet during actual operation is transmitted to the anti-rotation metal threaded pin 93 through the electric connection plate, and then transmitted to the anti-rotation metal cylinder 92, and then transmitted to the container assembly 1 through the anti-rotation metal cylinder 92. The circumferential electromagnetic rotating force transmission process is a hard connection transmission. The anti-rotation metal cylinder 92 replaces the insulation anti-rotation structure of the insulation composite material in the prior art. The anti-rotation metal cylinder 92 has high strength of metal, which solves the problem of insufficient strength of the traditional structure, thereby preventing the electric connection plate and the coil from being damaged.

[0117] Further, a plurality of connection holes are formed on the upper and lower end faces of the anti-rotation insulation plate 91, and the anti-rotation metal cylinder 92 and the corresponding electric connection plate are connected by bolts.

[0118] Further, a plurality of anti-rotation lateral cooling channels 921 are formed on the circumferential side face of the anti-rotation metal cylinder 92, and a first anti-rotation circumferential cooling channel 922 is formed on the end face of the anti-rotation metal cylinder 92 close to the anti-rotation insulation plate 91 for the flow of cooling water.

[0119] Still further, a second anti-rotation circumferential cooling channel 911 is formed on the anti-rotation insulation plate 91 and communicates with the first anti-rotation circumferential cooling channel 922.

[0120] Reference Figure 20 to Figure 24The B coil end plate 222, the B coil upper electrode cylinder 224, and the B coil lower electrode cylinder 226 are each provided with a plurality of B coil cooling channels. The B coil end plate 222, the first B coil upper electrode cylinder 2241, and the first B coil lower electrode cylinder 2261 are each provided with a plurality of B coil axial cooling channels 2221, and the second B coil upper electrode cylinder 2242 and the second B coil lower electrode cylinder 2262 are each provided with a plurality of B coil lateral cooling channels 22421.

[0121] Further, the fixing rod 223 is fixed between the two B coil end plates 222 by pulling the insulating pad, the disc-shaped gasket, the metal pad, and the nut, and the fixing rod 223 is made of a metal flat rod and an insulating layer solidified by glass filaments and epoxy resin. The metal flat rod and the insulating layer have good integrity and stable insulation performance, and the fixing rod 223 is provided with threads at both ends to lock the B magnet coil 221. The electrical insulation between the fixing rod 223 and the B coil upper electrode cylinder 224 and the B coil lower electrode cylinder 226 is achieved by an insulating tube. The insulating tube is a heat-shrinkable tube, which is sleeved outside the fixing rod 223, the insulating pad, the disc-shaped gasket, the metal pad, and the nut. A heating tool is used to heat the heat-shrinkable tube, and the heat-shrinkable tube is shrunk and fixed tightly, which can save space and improve the cooling water channel and electrical insulation requirements.

[0122] The B coil end plate 222 is provided with a plurality of uniformly distributed fixing rod holes and annular grooves; the first B coil upper electrode cylinder 2241 is provided with a plurality of cooling grooves and fixing rod holes in a horn mouth structure, which increases the cooling water passage; the first B coil upper electrode cylinder 2241 is provided with a plurality of threaded holes at the small end for connecting the second B coil upper electrode cylinder 2242; the first B coil lower electrode cylinder 2261 is provided with a plurality of first insulation cylinder support tables 22611 for supporting the insulation cylinder between the B coil 22 and the C coil 23, in addition to the same arrangement as the first B coil upper electrode cylinder 2241, and a cooling water passage between adjacent first insulation cylinder support tables 22611; the second B coil upper electrode cylinder 2242 is provided with a plurality of light holes, force transmission holes and threaded holes, the plurality of light holes are fixedly connected to the first B coil upper electrode cylinder 2241 through countersunk screws, the plurality of threaded holes are used for connecting the conductive flexible connecting piece 225 to realize the electrical connection between the A coil 21 and the B coil 22, and the plurality of force transmission holes are used for loading a hydraulic insulation sleeve to realize the hydraulic pressure of the hydraulic assembly 13 applied to the B coil 22 and the insulation between the B coil 22 and the hydraulic assembly 13; the second B coil upper electrode cylinder 2242 is provided with upper locking nut threads and upper lock nut threads for loading the upper locking nut 214 and the upper lock nut, which are used for locking the upper part of the A coil 21 and the electrical connection of the A coil 21; compared with the second B coil upper electrode cylinder 2242, the second B coil lower electrode cylinder 2262 is also provided with lower locking nut threads and lower lock nut threads for loading the lower locking nut 217, the lower lock nut and the insulation sleeve ring 216, which are used for locking the lower part of the A coil 21 and the electrical insulation of the A coil 21; the second B coil lower electrode cylinder 2262 is provided with threaded holes for connecting the B coil and the BC connecting plate 5 to realize the electrical connection between the B coil 22 and the C coil 23.

[0123] In the present embodiment, the conductive flexible connecting piece 225 is composed of a plurality of copper sheets with a thickness of several microns, which are overlapped and pressed into an integral structure at both end holes through a pressing process. When the water-cooled magnet device is running, the hydraulic assembly 13 applies pressure to the A coil 21 and the B coil 22, so that the height of the coils changes. The flexible connection can be stretched and compressed, which can stably ensure the electrical connection between the A coil 21 and the B coil 22. Therefore, the electrical connection between the A coil 21 and the B coil 22 adopts a two-way parallel technology, that is, the first way of electrical conduction is connected through the upper locking nut 214 and the upper lock nut, and the second way is connected through the conductive flexible connecting piece 225, which can realize the stable transmission of larger current in a compact space. At the same time, during the operation of the water-cooled magnet device, the A coil 21 and the B coil 22 are affected by electromagnetic force and hydraulic pressure of the hydraulic assembly 13, and the compression amount exists difference. The conductive flexible connecting piece 225 can realize stable electrical connection under the condition of different compression amounts of the A coil 21 and the B coil 22.

[0124] In addition, the disc-shaped gasket is composed of a plurality of butterfly springs in the embodiment, and the coil fastening can reserve a large pre-tightening force for the B coil 22, and the electrical connection of each part of the coil can be ensured during the operation of the water-cooled magnet device.

[0125] Referring to Figure 25 to Figure 28 The C coil 23 comprises a C magnet coil 231, C coil end plates 232, C fixing rods 233, a C coil upper electrode cylinder 234, and a C coil lower electrode cylinder 235.

[0126] The C magnet coil 231 is fixed between the two groups of C coil end plates 232 through the C fixing rods 233. One end of the C coil upper electrode cylinder 234 is connected with the upper C coil end plate 232, and the other end is electrically connected with the D coil 24 through a CD electrical connection plate 6. One end of the C coil lower electrode cylinder 235 is connected with the lower C coil end plate 232, and the other end is electrically connected with the BC electrical connection plate 5. The CD electrical connection plate 6 is connected with the container top cover assembly 12 through an insulation anti-rotation structure 9. Specifically, the CD electrical connection plate 6 is connected with the C coil 23 and the D coil 24 through screws. The anti-rotation insulation plate 91, the anti-rotation metal cylinder 92, and the anti-rotation insulation sleeve 94 are sequentially arranged on the top surface of the CD electrical connection plate 6 from bottom to top. The threaded segment of the anti-rotation metal threaded pin 93 is threadedly connected with the CD electrical connection plate 6, and the other end of the anti-rotation metal threaded pin 93 is inserted into the anti-rotation metal cylinder 92 after penetrating through the anti-rotation insulation plate 91 and being sleeved with the anti-rotation insulation sleeve 94.

[0127] A plurality of C coil cooling channels are arranged on the C coil end plates 232, the C coil upper electrode cylinder 234, and the C coil lower electrode cylinder 235. Specifically, a plurality of C coil axial cooling channels 2321 are arranged on the C coil end plates 232, and a plurality of C coil lateral cooling channels 2341 are arranged on the C coil upper electrode cylinder 234 and the C coil lower electrode cylinder 235.

[0128] The C coil end plate 232 is provided with threaded holes, and the C upper electrode cylinder 234 and the C lower electrode cylinder 235 are fixed by screws. The outer circumferential side of the C coil end plate 232 is provided with a plurality of anti-rotation grooves 2322. The end portions of the C coil upper electrode cylinder 234 and the C coil lower electrode cylinder 235, which are connected with the C coil end plate 232, are provided with a plurality of bosses 2342 matched with the anti-rotation grooves 2322, so as to guarantee the connection of the C coil end plate 232 with the C coil upper electrode cylinder 234 and the C coil lower electrode cylinder 235. A plurality of fixed rod sinking holes are arranged on the C coil upper electrode cylinder 234 and the C coil lower electrode cylinder 235. The end portions of the C fixed rod 233 are sunk into the C coil upper electrode cylinder 234 and the C coil lower electrode cylinder 235. The outer circumferential wall of the C coil lower electrode cylinder 235 is provided with a plurality of second insulation cylinder support tables 2351 for supporting the insulation cylinder between the C coil 23 and the D coil 24. The adjacent second insulation cylinder support tables 2351 form water flow grooves 2352 for leading the cooling water between the inner wall of the insulation cylinder and the outer wall of the C magnet coil 231. The C fixed rod 233 has the same structure as the B fixed rod 223, which is made of a metal flat rod and an insulation layer solidified by glass filaments and epoxy resin. The metal flat rod and the insulation layer have good integrity and stable insulation performance. The C fixed rod 233 is provided with threads at both ends, and is locked by an insulation pad, a disc-shaped washer, a metal pad and a nut in sequence.

[0129] In the embodiment, the D coil 24 has the same structure as the C coil 23. The D coil includes a D magnet coil, a D coil end plate, a D fixed rod, a D coil upper electrode cylinder and a D coil lower electrode cylinder. The D magnet coil is fixed between the two groups of D coil end plates by the D fixed rod. One end of the D coil upper electrode cylinder is connected with the upper D coil end plate, and the other end is electrically connected with the CD electrical connection plate 6. One end of the D coil lower electrode cylinder is connected with the lower D coil end plate, and the other end is electrically connected with the E coil 25 through the DE electrical connection plate 7. The DE electrical connection plate 7 is connected with the container bottom cover 15 through the insulation anti-rotation structure 9. Specifically, the DE electrical connection plate 7 is connected with the D coil 24 and the E coil 25 by screws. The anti-rotation insulation plate 91, the anti-rotation metal cylinder 92 and the anti-rotation insulation sleeve 94 are arranged on the bottom surface of the DE electrical connection plate 7 in sequence from top to bottom. The threaded segment of the anti-rotation metal threaded pin 93 is screwed with the DE electrical connection plate 7, and the other end is inserted into the anti-rotation metal cylinder 92 after penetrating the anti-rotation insulation plate 91.

[0130] A plurality of D coil cooling channels are arranged on the D coil end plate, the D coil upper electrode cylinder and the D coil lower electrode cylinder. The D fixed rod is provided with threads at both ends, and is locked by an insulation pad, a disc-shaped washer, a metal pad and a nut in sequence.

[0131] Referring to Figure 29 and Figure 30The E coil 25 comprises an E magnet coil 251, an E coil end plate 252, an E fixing rod 253, and an EF electric connection cylinder 254.

[0132] The E magnet coil 251 is fixed between the two groups of E coil end plates 252 by the E fixing rod 253. One end of the EF electric connection cylinder 254 is electrically connected with the upper E coil end plate 252, and the other end is electrically connected with the F coil 26 through the EF electric connection plate 8. The lower E coil end plate 252 of the E magnet coil 251 is insulatedly connected with the container bottom cover 15 through an anti-insulation cylinder. The EF electric connection plate 8 is connected with the container top cover assembly 12 through the anti-rotation insulation structure 9. Specifically, the EF electric connection plate 8 is electrically connected with the E coil 25 and the F coil 26 through screws. The anti-rotation insulation plate 91, the anti-rotation metal cylinder 92, and the anti-rotation insulation sleeve 94 are sequentially arranged on the top surface of the EF electric connection plate 8 from bottom to top. The threaded segment of the anti-rotation metal threaded pin 93 is threadedly connected with the EF electric connection plate 8, and the other end of the anti-rotation metal threaded pin 93 is inserted into the anti-rotation metal cylinder 92 after penetrating through the anti-rotation insulation plate 91.

[0133] A plurality of E coil axial cooling channels 2521 are arranged on the E coil end plate 252. The E fixing rod 253 is provided with threads at both ends, and is used to lock the E magnet coil 251 by sequentially passing through an insulation pad, a disc-shaped gasket, a metal pad, and a nut.

[0134] Referring to Figure 31 and Figure 33 , the F coil 26 comprises an F magnet coil 261, an F coil end plate 262, an F fixing rod 263, an F peripheral fixing rod 264, and an F transition electric connection seat 265.

[0135] The F magnet coil 261 is fixed between the two groups of F coil end plates 262 by the F fixing rod 263. The two groups of F coil end plates 262 outside the F magnet coil 261 are also connected by a plurality of F peripheral fixing rods 264. The upper F coil end plate 262 is electrically connected with the EF electric connection plate 8, and the lower F coil end plate 262 is insulatedly connected with the container bottom cover 15. The end of the second electric connection piece 28 extending into the cylinder wall assembly is electrically connected with the F transition electric connection seat 265 fixed on the lower F coil end plate 262.

[0136] The F peripheral fixing rod 264 is made of a metal circular cross-section rod and an insulation layer solidified by glass filaments and epoxy resin, and is used to insulate the F peripheral fixing rod 264 from the F magnet coil 261 and the F coil end plate 262. The insulation layer is provided with a thickened layer at both ends to play a positioning role in the installation of the F coil end plate 262. The F peripheral fixing rod 264 is provided with threads at both ends, and the F magnet coil 261, the F coil end plate 262, the F insulation pad ring, and the F adjusting pad ring are locked and fixed by the F peripheral nut. Together with the F fixing rod 263, the F peripheral fixing rod 264 locks and fixes the F magnet coil 261 and the F coil end plate 262.

[0137] F coil end plate 262 is provided with a plurality of F coil axial cooling channels 2621, and the two ends of F fixing rod 263 are provided with threads, which are sequentially locked by an insulating pad, a disc washer, a metal pad, and a nut to lock F magnet coil 261.

[0138] Referring to Figure 34 F transition electrical connector 265 is provided with a through hole connected to F coil end plate 262 by a countersunk screw, and F transition electrical connector 265 is provided with a mounting port for mounting the middle two countersunk screws on F transition electrical connector 265, which is also a cooling water flow channel; F transition electrical connector 265 is provided with a ring groove as a partial cooling water flow channel; and F transition electrical connector 265 is provided with a plurality of threaded holes at the lower end for connecting second electrical connector 28 by screws.

[0139] In this embodiment, referring to Figure 35 E coil 25 and F coil 26 are connected to container bottom cover 15 in an insulating manner by sequentially passing through EF lower end anti-rotation insulating cylinder 201 and EF lower end anti-rotation metal cylinder 202, EF lower end anti-rotation insulating cylinder 201 is provided with a boss, and the boss surface is provided with a plurality of holes for accommodating threaded cylindrical pins mounted on E coil end plate 252 to support and prevent rotation of E coil 25; the step of EF lower end anti-rotation insulating cylinder 201 is used to support the insulating cylinder between E coil 25 and F coil 26, and the step is provided with a plurality of holes for providing countersunk screws to connect F coil end plate 262 and EF lower end anti-rotation insulating cylinder 201; the lower end surface of EF lower end anti-rotation insulating cylinder 201 is provided with a plurality of evenly distributed threaded holes; and the upper end of EF lower end anti-rotation metal cylinder 202 is provided with a plurality of evenly distributed holes connected to EF lower end anti-rotation insulating cylinder 201 by countersunk screws.

[0140] Similarly, this embodiment also includes an anti-rotation member, which includes A lower insulating support anti-rotation cylinder 203 connected to container bottom cover 15, AB lower support anti-rotation plate 204, DE lower support anti-rotation plate 205, EF lower support anti-rotation plate 206, and F support adjustment insulating plate 207.

[0141] A lower insulating support anti-rotation cylinder 203 is provided with uniformly distributed holes on the upper end face for mounting the large head of the fastening screw of the second electric connector 28, and is provided with cooling water channels on the side face, and is provided with a plurality of uniformly distributed holes on the lower end face; the AB lower support anti-rotation plate 204 is provided with two circles of threaded holes on the upper end face, providing threaded cylindrical pins for connecting the insulating anti-rotation structure 9 between the B coil 22 and the C coil 23 and the A lower insulating support anti-rotation cylinder 203, respectively; the DE lower support anti-rotation plate 205 connects the insulating anti-rotation structure 9 between the D coil 24 and the E coil 25 through the countersunk head screws, respectively; the EF lower support anti-rotation plate 206 connects the EF lower end anti-rotation metal cylinder 202 through the countersunk head screws, respectively; the AB lower support anti-rotation plate 204, the DE lower support anti-rotation plate 205, and the EF lower support anti-rotation plate 206 are all provided with a plurality of holes on the lower end face for the countersunk head threaded pins to be inserted into the container bottom cover 15; the F support adjusting insulating plate 207 is used for being sleeved between the locking nut on the F outer peripheral fastening rod 264 and the F coil end plate 262.

[0142] In the present embodiment, the current flows into the A coil 21 through the first electric connector 27, flows to the lower end of the B coil 23 through the upper locking nut 214, the upper anti-loosening nut, the AB electric connection plate 4, and the conductive soft connecting piece 225, and then flows to the lower end of the B coil 23, and then flows to the lower end of the C coil 23 through the BC electric connection plate 5, and then flows to the lower end of the C coil 23; and then flows to the upper end of the D coil 24 through the CD electric connection plate 6, and then flows to the lower end of the D coil 24; and then flows to the lower end of the E coil 25 through the DE electric connection plate 7, and then flows to the upper end of the E coil 25; and then flows to the lower end of the F coil 26 through the EF electric connection plate 8, and then flows to the lower end of the F coil 26; and then flows into the second electric connector 28 through the F transition electric connection seat 265, and finally flows out of the water-cooled magnet device.

[0143] Embodiment Two

[0144] Referring to 36 to Figure 38 The difference between the present embodiment and the first embodiment is that the insulating cylinder assembly 3 is formed in a cylindrical structure by axially splicing and combining a plurality of insulating sleeves 32, the inner wall and the outer wall of each insulating sleeve 32 are both provided with second convex ridges 321 arranged along the length direction of the insulating sleeve, and the second convex ridges 321 between adjacent ones are cooling water channels, the inner wall of each insulating sleeve 32 is provided with a plurality of second positioning bosses 322 arranged along the length direction thereof, the outer side of the A coil 21 is correspondingly provided with a clamping groove (not shown in the figure) clamping the second positioning bosses, and the thickness of the second convex ridges 321 on the outer wall of the adjacent insulating sleeve 32 decreases gradually from the middle of the insulating cylinder assembly 3 to the two ends.

[0145] It should be noted that the coil of the water-cooled magnet gradually increases from both ends to the middle, and the electromagnetic force is the largest at the middle. Therefore, during operation, the radial displacement of the two ends of the coil is the largest, and the size of the traditional integrated insulation cylinder from the middle to the two ends is the same, which will cause the radial electromagnetic force of the two ends of the inner coil to be transmitted to the outer coil, which is not conducive to the operation of the outer coil. In the present embodiment, the insulation cylinder assembly 3 is formed into a ring-shaped segmented cylindrical structure by axially splicing and combining a plurality of insulation sleeves 32, and the insulation sleeves 32 gradually decrease in thickness from the middle to the two ends of the coil in a multi-segment second convex bead 321, thereby reserving sufficient buffer space for each segment of the coil and avoiding affecting the outer coil.

[0146] It will be obvious to a person skilled in the art that, as the application is not limited to the details of the exemplary embodiments described above, it can be implemented in other concrete forms without departing from the spirit or essential characteristics of the application. Consequently, the embodiments are to be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the above description, and therefore all changes coming within the meaning and range of equivalency of the claims are intended to be embraced therein, no reference signs in the claims being intended to be limiting of the claims in any way.

[0147] The above embodiments only represent the implementation of the application, and the protection scope of the application is not limited to the above embodiments. For those skilled in the art, without departing from the concept of the application, a number of modifications and improvements can be made, which are all within the protection scope of the application.

Claims

1. A high-field water-cooled magnet device, characterized in that: It includes a container assembly and a magnet coil assembly, the magnet coil assembly being located inside the container assembly and communicating with the container assembly; The container assembly includes a container top cover assembly and a hydraulic press assembly. The inner ring of the container top cover assembly is connected to the outer ring of the hydraulic press assembly. The hydraulic press assembly includes a cylinder, a piston, a stop ring, a pressure equalizing pad, a first force transmission stop ring, a first anti-rotation pin, a second force transmission stop ring, a second anti-rotation pin, a first force transmission column, and a second force transmission column. The piston is installed inside the cylinder. A stop ring and a pressure equalizing pad are installed at the bottom of the cylinder. A first force transmission stop ring and a second force transmission stop ring are installed at the bottom of the pressure equalizing pad. The first force transmission stop ring is connected to the cylinder through a first anti-rotation pin. The second force transmission stop ring is connected to the stop ring through a second anti-rotation pin. Multiple first force transmission columns are connected to the first force transmission stop ring. Multiple second force transmission columns are connected to the second force transmission stop ring. The first force transmission column is insulated from the innermost coil in the magnet coil assembly. The second force transmission column is insulated from the coil adjacent to the innermost coil. The magnet coil assembly includes multiple coils that are radially connected in series. Except for the two innermost coils, the top and bottom ends of the remaining coils are connected to the top and bottom ends of the container assembly through an insulating anti-rotation structure. The two innermost coils are insulated from each other by an insulating cylinder assembly.

2. A high-field water-cooled magnet device according to claim 1, characterized in that: The cylinder body is evenly distributed with first anti-rotation pin grooves, and the first force transmission stop ring is circumferentially provided with a first countersunk bolt connection hole. One end of the first anti-rotation pin is engaged in the first anti-rotation pin groove, and the other end is threadedly connected to the first countersunk bolt connection hole. The stop ring is evenly distributed with second anti-rotation pin grooves, and the second force transmission stop ring is circumferentially provided with a second countersunk bolt connection hole. One end of the second anti-rotation pin is engaged in the second anti-rotation pin groove, and the other end is threadedly connected to the second countersunk bolt connection hole.

3. A high-field water-cooled magnet device according to claim 1, characterized in that: The container assembly also includes a cylindrical wall assembly, a central tube assembly, a container bottom cover, a support leg assembly, and an electrical connection assembly. The outer ring of the container top cover assembly is connected to the top of the cylindrical wall assembly, the inner ring of the hydraulic press assembly is connected to the top of the central tube assembly, the outer ring of the container bottom cover is connected to the bottom of the cylindrical wall assembly, and the inner ring is connected to the bottom of the central tube assembly. Multiple electrical connection assemblies penetrate the cylindrical wall assembly and are electrically connected to the magnet coil assembly.

4. A high-field water-cooled magnet device according to claim 3, characterized in that: The cylinder wall assembly includes an inner cylinder, an outer cylinder, a filter screen, an insulating layer, a first connecting plate, a second connecting plate, and an electrical connection assembly. The inner cylinder and the outer cylinder are arranged at intervals. The top ends of the inner cylinder and the outer cylinder are connected by the first connecting plate, and the bottom ends are connected by the second connecting plate. A partition connects the middle part between the inner cylinder and the outer cylinder. The first connecting plate, the inner cylinder, the outer cylinder, and the partition form a high-pressure water inlet chamber, and the second connecting plate, the inner cylinder, the outer cylinder, and the partition form a low-pressure water outlet chamber. High-pressure water enters from the high-pressure water inlet chamber and flows out from the low-pressure water outlet chamber after passing through the magnet coil assembly. A filter screen is installed at the inlet of the high-pressure water inlet chamber. An insulating layer is solidified on the inner wall of the inner cylinder. The electrical connection assembly passes through the inner cylinder and the outer cylinder and is electrically connected to the magnet coil assembly.

5. A high-field water-cooled magnet device according to claim 1, characterized in that: The magnet coil assembly includes six coils A, B, C, D, E, and F, which are radially connected in series, as well as a first electrical connector and a second electrical connector. One end of the first electrical connector is electrically connected to the innermost coil A, and the other end is electrically connected to one of the sets of electrical connection components. One end of the second electrical connector is electrically connected to the outermost coil F, and the other end is electrically connected to another set of electrical connection components. Coil A and coil B are insulated from each other by an insulating cylinder assembly; coil B and coil C, coil C and coil D, coil D and coil E, and coil E and coil F are insulated from each other by an insulating cylinder. Coil A and coil B are electrically connected via the AB electrical connection plate; coil B and coil C are electrically connected via the BC electrical connection plate; coil C and coil D are electrically connected via the CD electrical connection plate; coil D and coil E are electrically connected via the DE electrical connection plate; and coil E and coil F are electrically connected via the EF electrical connection plate. The AB electrical connection plate is insulated from the hydraulic press assembly. The BC, CD, DE, and EF electrical connection plates are all connected to the container assembly via an insulated anti-rotation structure. The anti-rotation structure includes an anti-rotation insulating plate, an anti-rotation metal cylinder, an anti-rotation metal threaded pin, and an anti-rotation insulating sleeve. The anti-rotation insulating plate is placed between the anti-rotation metal cylinder and the corresponding electrical connection plate. The end of the anti-rotation metal cylinder away from the electrical connection plate is connected to the container assembly. The threaded section of the anti-rotation metal threaded pin is threadedly connected to the corresponding electrical connection plate. The other end is fitted with an anti-rotation insulating sleeve, which passes through the anti-rotation insulating plate and is then inserted into the anti-rotation metal cylinder, resulting in an insulated connection between the anti-rotation metal threaded pin and the anti-rotation metal cylinder.

6. A high-field water-cooled magnet device according to claim 5, characterized in that: The insulating cylinder assembly is a cylindrical structure formed by axially splicing multiple insulating sleeves. Each insulating sleeve has a second protrusion on its inner and outer walls along the length of the insulating sleeve. There are cooling water channels between adjacent second protrusions. Each insulating sleeve has multiple second positioning protrusions along its length on its inner wall. The outer side of coil A is provided with a corresponding slot for engaging the second protrusions. The thickness of the second protrusions on the outer walls of adjacent insulating sleeves decreases sequentially from the middle of the insulating cylinder assembly towards both ends.

7. A high-field water-cooled magnet device according to claim 5, characterized in that: The insulating cylinder assembly is formed by circumferentially splicing multiple insulating sheets to form a cylindrical structure. Each insulating sheet has a first protrusion on its inner and outer walls along the length of the insulating sheet. The space between adjacent first protrusions is a cooling water channel. Each insulating sheet has a first positioning boss at both ends along its length on its inner wall. The first positioning bosses on adjacent insulating sheets fit together to form a boss group. A corresponding slot for engaging the boss group is provided on the outer side of coil A.

8. A high-field water-cooled magnet device according to claim 7, characterized in that: Coil A includes magnet coil A, coil end plate A, upper electrode cylinder of coil A, upper locking nut, upper anti-loosening nut A, lower electrode cylinder of coil A, insulating collar, lower locking nut, lower anti-loosening nut A, and transition connecting cylinder of coil A. The upper and lower ends of magnet coil A are connected to coil end plate. One end of upper electrode cylinder A is connected to upper coil end plate, and the other end is connected to coil B via AB electrical connection plate. Upper locking nut and upper anti-loosening nut are provided on upper electrode cylinder A from bottom to top. Upper electrode cylinder A is connected to coil B via upper locking nut and upper anti-loosening nut. The end of first force transmission column away from first force transmission stop ring is insulated from AB electrical connection plate. One end of lower electrode cylinder A is connected to lower coil end plate, and the other end is insulated from container bottom cover via transition connecting cylinder A. Insulating collar is fitted on the outer wall of lower electrode cylinder A. Lower locking nut and lower anti-loosening nut are provided outside insulating collar. Multiple coil cooling channels are provided on coil end plate, upper electrode cylinder A, and lower electrode cylinder A. The end of first electrical connector extending into cylinder wall assembly is electrically connected to transition connecting cylinder A. A first limiting groove is provided on the outer circumference of the end plate of coil A, a second limiting groove is provided on the outer circumference of the upper electrode tube of coil A, and a positioning groove is provided on the outer circumference of the lower electrode tube of coil A. The first limiting groove, the second limiting groove, and the positioning groove are connected to form a locking groove for the locking boss assembly. The bottom of the positioning groove is in contact with the bottom surface of the boss assembly to support the insulating sheet.

9. A water-cooled magnet device according to claim 8, characterized in that: The B coil includes a B magnet coil, a B coil end plate, a B fixing rod, an upper electrode cylinder of the B coil, a conductive flexible connector, and a lower electrode cylinder of the B coil. The B magnet coil is fixed between the two sets of B coil end plates by the B fixing rod. One end of the upper electrode cylinder of the B coil is connected to the upper B coil end plate, and the other end is electrically connected to the AB electrical connection plate through a conductive flexible connector. The upper electrode cylinder of the B coil is also electrically connected to the upper electrode cylinder of the A coil through an upper locking nut and an upper anti-loosening nut. The end of the second force transmission column away from the second force transmission stop ring passes through the AB electrical connection plate and is insulatedly connected to the upper electrode cylinder of the B coil. One end of the lower electrode cylinder of the B coil is connected to the lower B coil end plate, and the other end is electrically connected to the C coil through the BC electrical connection plate. The BC electrical connection plate is connected to the bottom cover of the container through an insulated anti-rotation structure. Multiple B coil cooling channels are provided on the B coil end plate, the upper electrode cylinder of the B coil, and the lower electrode cylinder of the B coil.

10. A high-field water-cooled magnet device according to claim 9, characterized in that: The C coil includes a C magnet coil, a C coil end plate, a C fixing rod, an upper electrode cylinder of the C coil, and a lower electrode cylinder of the C coil; The C magnet coil is fixed between two sets of C coil end plates by a C fixing rod. One end of the upper electrode cylinder of the C coil is connected to the upper C coil end plate, and the other end is electrically connected to the D coil through the CD electrical connection plate. One end of the lower electrode cylinder of the C coil is connected to the lower C coil end plate, and the other end is electrically connected to the BC electrical connection plate. The CD electrical connection plate is connected to the container top cover assembly through an insulating anti-rotation structure. Multiple C coil cooling channels are provided on the C coil end plate, the upper electrode cylinder of the C coil, and the lower electrode cylinder of the C coil. The D coil includes a D magnet coil, a D coil end plate, a D fixing rod, an upper electrode cylinder of the D coil, and a lower electrode cylinder of the D coil; The D magnet coil is fixed between two sets of D coil end plates by a D fixing rod. One end of the upper electrode cylinder of the D coil is connected to the upper D coil end plate, and the other end is electrically connected to the CD electrical connection plate. One end of the lower electrode cylinder of the D coil is connected to the lower D coil end plate, and the other end is electrically connected to the E coil through the DE electrical connection plate. The DE electrical connection plate is connected to the bottom cover of the container through an insulating anti-rotation structure. Multiple D coil cooling channels are provided on the D coil end plate, the upper electrode cylinder of the D coil, and the lower electrode cylinder of the D coil. The E coil includes the E magnet coil, the E coil end plate, the E fixing rod, and the EF electric connecting cylinder; The E-magnet coil is fixed between two sets of E-coil end plates via an E-fixing rod. One end of the EF electric connecting tube is connected to the upper E-coil end plate, and the other end is electrically connected to the F coil via the EF electric connecting plate. The lower E-coil end plate of the E-magnet coil is insulatedly connected to the bottom cover of the container. The EF electric connecting plate is connected to the top cover assembly of the container via an insulated anti-rotation structure. Multiple axial cooling channels for the E-coil are provided on the E-coil end plate. The F coil includes the F magnet coil, the F coil end plate, the F fixing rod, the F peripheral fastening rod, and the F transition electrical connection seat; The F magnet coil is fixed between two sets of F coil end plates by an F fixing rod. The two sets of F coil end plates on the outside of the F magnet coil are also connected by multiple F peripheral fastening rods. The upper F coil end plate is electrically connected to the EF electrical connection plate, and the lower F coil end plate is insulated from the bottom cover of the container. The end of the second electrical connector extending into the cylinder wall assembly is electrically connected to the F transition electrical connection seat fixed on the lower F coil end plate. Multiple F coil axial cooling channels are provided on the F coil end plate.

Images