13 results about "Superconducting solenoid" patented technology

The invention provides a nuclear fusion superconducting coil CICC type conductor winding and die falling device. A limiting column is installed in place according to a hole site in a rotary platform, and a first lifting machine and a second lifting machine stretch out and draw back in place according to a preset program; at the beginning of winding, the rotation driving module drives the gear module to drive the rotation platform module to rotate, and the coil is gradually limited between the limiting column and the connecting rod; and after the coil is subjected to die falling and winding, the coil clamp is clamped between the coils, the first lifter and the second lifter are controlled by a program to retract, the limiting columns are dismounted, and the coils can be taken out through a travelling crane. The second polygonal frame can arrange the same driving mechanism on the inner side of a coil with a smaller inner diameter. According to the technical scheme, the multiple sets of lifters capable of stretching out and drawing back in the radial direction are preset on the inner side of the coil, and the limiting columns arranged on the outer ring of the CICC type conductor coil are combined, so that precise control over the mold falling size of the CICC type conductor coil is achieved.

The present application relates to the technical fields of cryogenic engineering and superconducting magnet, and particularly relates to a high-coaxiality room-temperature hole structure for a superconducting magnet cryostat. The room-temperature hole structure comprises: a cryostat dewar shell, including a shell with a cylindrical cavity; a room-temperature hole tube, penetrating through two ends of the cryostat dewar shell along a central axis of the shell; a superconducting solenoid magnet, located inside the cryostat dewar shell, the superconducting solenoid magnet movably sleeving the room-temperature hole tube; two-dimensional plane fine adjustment assemblies, used for adjusting the relative positions of the superconducting solenoid magnet and the room-temperature hole tube to realize the coincidence of the central axes of the two; wherein, the two two-dimensional plane fine adjustment assemblies are symmetrically arranged relative to the superconducting solenoid magnet and are respectively mounted at two ends of the superconducting solenoid magnet. In the present application, the room-temperature hole tube and the superconducting solenoid magnet are connected together through the two-dimensional plane fine adjustment assemblies, and the coaxiality between the two can be improved.

The invention provides a superconducting stacked parallel-wound solenoid coil manufacturing method and structure, and the method comprises the following steps: S1, preparing a solenoid supporting skeleton and a plurality of superconducting strips, and carrying out the surface cleaning; s2, stacking superconducting tape coil winding is carried out on the multiple superconducting tapes; and S3, solenoid packaging is carried out by adopting a heat conduction filling agent and an insulating material. The coil winding of the solenoid is formed through non-insulation stacking and winding of the superconducting strips, so that more superconducting strips are contained in the same volume, the current-carrying capacity and the current density are improved, the strips are tightly coupled through the non-insulation stacking and winding mode, the eddy current loss is reduced, meanwhile, the stacking structure shields external magnetic field interference, and the electromagnetic interference is reduced. The alternating current loss in an alternating magnetic field is reduced, the efficiency and the performance of the superconducting solenoid are improved, and the quench stability and the self-protection capability of the superconducting solenoid are greatly enhanced by a shunting mechanism among the non-insulated stacked and wound superconducting tapes.

The application discloses a kind of for arc superconducting solenoid framework processing turning-milling composite tooling, belongs to turning-milling composite processing technical field.Processing tooling includes two oppositely arranged clamping assemblies, one end clamping assembly connects machine tool driving chuck, the other end connects machine tool driven chuck, arc inclined solenoid framework is connected between the two clamping assemblies, the front surface of clamping assembly is equipped with clamping fixture, clamping fixture includes cylindrical base, the center of the upper surface of base is fixed with cylindrical clamping sleeve, clamping sleeve is coaxial with base and the diameter of clamping sleeve is less than the outer diameter of base, the outer diameter of clamping sleeve is equal to the inner diameter of arc superconducting solenoid framework process end;Clamping, the process end of arc superconducting solenoid framework is sleeved on clamping sleeve;When processing, solenoid framework clamping assembly is connected with machine tool driving chuck and driven chuck, and arc inclined solenoid slot is processed along with the linkage of chuck and milling cutter.

Examples relate to cryogen flow control techniques using a magnetic failsafe valve. The valve is located between a cryogen source and a cryogen bath and has a position based on the magnetic field generated by a parallel solenoid circuit having a superconducting solenoid wound in a first direction and a non-superconducting solenoid (e.g., normal metal solenoid) wound in a second direction. When the current source is supplying a current to the parallel solenoid circuit and the temperature at the parallel solenoid circuit is below a threshold temperature, the current flows through the superconducting solenoid causing the magnetic field generated by the parallel solenoid circuit to position the magnetic valve in a particular state (e.g., open). The position of the valve can quickly change in situations where the temperature rises above the threshold temperature.

The invention provides a superconducting solenoid multipolar magnetic field analysis method and system, and the method comprises the steps: measuring the magnetic field intensity of three-dimensional magnetic fields of different cross sections of a superconducting solenoid, the three-dimensional magnetic fields comprise a longitudinal magnetic field, a horizontal magnetic field and a vertical magnetic field, and calculating the magnetic field intensity of a first radial magnetic field through the horizontal magnetic field and the vertical magnetic field; calculating the magnetic field intensity of a second radial magnetic field of the superconducting solenoid according to the radial radius of the cross section of the superconducting solenoid and the longitudinal magnetic field, and judging whether the absolute value of the quotient of the magnetic field intensity of the first radial magnetic field and the second radial magnetic field is within a first preset range; judging whether three-dimensional magnetic fields of different cross sections of the superconducting solenoid need to be readjusted and measured or not according to a judgment result; the multi-pole field coefficient of the superconducting solenoid is calculated by using the horizontal magnetic field and the vertical magnetic field, and then the magnetic field intensity of the multi-pole field of the superconducting solenoid is calculated according to the multi-pole field coefficient, so that the problem that a simple and high-precision measurement and analysis method for solenoid magnetic axis and multi-pole field distribution is lacked at present is solved.

The application discloses a casting process for a superconducting inclined solenoid tube type coil of a medical ion beam accelerator. The superconducting inclined solenoid tube comprises, from outside to inside, an arc tube shaped coil outer framework, a coil inner framework and a stainless steel support tube which are sequentially sleeved. The casting system comprises a casting tool. The casting process comprises the following steps: coil framework structure optimization design; preparation of the casting tool; installation of the superconducting inclined solenoid tube; preheating; epoxy resin preparation; vacuum casting; solidification; demolding and the like. The application adopts a vacuum casting method of the epoxy resin from bottom to top, greatly improves the casting permeability of the superconducting inclined solenoid tube during casting, and guarantees the insulation performance and electromagnetic performance of the superconducting inclined solenoid tube.

The invention discloses a high-temperature superconducting solenoid coil system facing rapid current change and a forming method, and relates to the technical field of high-temperature superconducting. A CORC conductor formed by multiple layers of YBCO superconducting tapes, an outer armor and an insulating tape form a high-temperature superconducting cable which is tightly wound on the central framework. The shell sleeves the outer side after the high-temperature superconducting cable surrounds the central framework, and wraps the high-temperature superconducting cable together with the central framework; the upper and lower end covers are used for connecting the shell and the central framework, holes are formed in the end covers, and the pouring steel pipes are inserted into the holes of the end covers; the gap sealing glue is used for filling gaps between the end cover and the shell and gaps between the end cover and the central framework, providing a sealing environment and being used for sealing gaps between the pouring steel pipe and the end cover. The high-temperature superconducting solenoid coil is formed by sleeving solenoid coils with different diameters, and the upper flange and the lower flange are used for connection, so that the replaceability of the coil is improved.

The invention discloses a chromatic aberration energy selection method of a laser acceleration proton beam, which adopts a method of combining a superconducting solenoid, an energy reducer and an energy selection diaphragm to realize the proton beam energy selection function and reduce the volume of a beam transmission line. And finally, obtaining a laser proton beam with energy dispersion less than 6% for treating cancers in a later-stage scattering scheme.

The present invention discloses a high-temperature superconducting solenoid coil system and forming method for rapid current changes, and relates to the field of high-temperature superconducting technology. A CORC conductor composed of multiple layers of YBCO superconducting tape, an outer armor, and an insulating tape form a high-temperature superconducting cable, which is tightly wrapped around a central skeleton. After the high-temperature superconducting cable wraps around the central skeleton, the outer shell is put on the outside, and together with the central skeleton, it wraps the high-temperature superconducting cable inside; the upper and lower end covers are used to connect the outer shell and the central skeleton, and the end covers are provided with holes, and the cast steel pipes are inserted into the holes of the end covers; the gap sealing glue is used to fill the gap between the end cover and the outer shell and the central skeleton, providing a sealed environment, and is used to seal the gap between the cast steel pipe and the end cover. The high-temperature superconducting solenoid coil of the present invention is formed by a set of solenoid coils of different diameters, connected by an upper flange and a lower flange, which increases the replaceability of the coil.

The invention provides a local dynamic enhanced visual muon imaging method based on magnetic focusing. The method comprises the following steps: after muons are focused, receiving muon signal data of a small area through a detector; preprocessing the muon signal data of different angles in the same area to obtain a projection data set; performing imaging reconstruction on the projection data set by adopting a three-dimensional reconstruction technology; and obtaining the three-dimensional density distribution of the target area. According to the invention, the multi-stage superconducting solenoids or quadrupole iron are utilized to actively regulate and focus muons, so that the signal intensity is greatly improved, the imaging period is greatly shortened, and the imaging quality is improved; by controlling the magnetic field intensity and direction of the multistage superconducting solenoids, the muon flux from a specific direction can be selectively enhanced, directional imaging is realized, and the imaging speed is improved by 5-8 times; by alternately irradiating the target, multiple groups of complementary projection data are obtained, the problem of projection missing in traditional muon imaging is improved, and the sampling rate of three-dimensional reconstruction is improved by more than three times.

The utility model discloses a reusable dipping detachable welding tool suitable for a superconducting solenoid coil. The reusable dipping detachable welding tool comprises a dipping assembly and a radial restraining assembly. An inner cylinder and an outer cylinder of the dipping assembly form an annular dipping space for containing a coil, a first plugging part and a second plugging part at the two axial ends of the dipping space are detachably connected with the inner cylinder and the outer cylinder in a sealed mode, the radial restraining assembly exerts radial abutting force on the outer cylinder through a plurality of evenly-distributed abutting parts, and the outer cylinder can be prevented from deforming and bulging; all the components of the impregnation assembly are detachably connected, the radial restraining assembly and the impregnation assembly are detachably connected, after impregnation is completed, the tool can be conveniently detached, cleaned and reused, operation is convenient, and the advantage of being low in cost is achieved.

Examples relate to cryogen flow control techniques using a magnetic failsafe valve. The valve is located between a cryogen source and a cryogen bath and has a position based on the magnetic field generated by a parallel solenoid circuit having a superconducting solenoid wound in a first direction and a non-superconducting solenoid (e.g., normal metal solenoid) wound in a second direction. When the current source is supplying a current to the parallel solenoid circuit and the temperature at the parallel solenoid circuit is below a threshold temperature, the current flows through the superconducting solenoid causing the magnetic field generated by the parallel solenoid circuit to position the magnetic valve in a particular state (e.g., open). The position of the valve can quickly change in situations where the temperature rises above the threshold temperature.