Coil used for fast impulse superconducting magnet winding structure
A technology of superconducting windings and superconducting magnets, applied in superconducting magnets/coils, the usage of superconducting elements, superconducting/high-conducting conductors, etc., can solve the problem of poor mechanical strength and stability, low quench propagation speed, etc. problem, to achieve the effect of speeding up the quench propagation speed, increasing the quench propagation speed, and improving the stability
Active Publication Date: 2010-04-21
INST OF ELECTRICAL ENG CHINESE ACAD OF SCI
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[0004] In order to overcome the technical problems of poor mechanical strength and stability and low quench propagation speed of current fast pulsed superconducting magnets, this invention proposes a coil with a new structure winding, which is especially suitable for superconducting magnets with high energy storage density. Magnets and other fast pulsed high field superconducting magnet systems
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[0021] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0022] Such as figure 1 As shown, the superconducting wire used in the superconducting winding of the coil of the present invention consists of a superconductor 1 for transmitting current, a composite matrix 2 composed of CuNi and copper with good stability, and an external insulating layer 3 . The superconductor (1) is wrapped with a composite matrix (2) composed of CuNi and copper, and the composite matrix (2) is covered with an insulating layer (3). The ratio of the width a to the thickness b of the superconducting wire is greater than 2.5 to ensure the stability of the structure.
[0023] Such as Figure 2a with Figure 2b Shown is the structure of the coil of the present invention. The skeleton 4 is usually made of epoxy glass fiber reinforced plastic or stainless steel. There are more holes on the skeleton 4 for the passage of liquid h...
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Abstract
A coil used for fast pulse superconducting magnet winding structure has an epoxy gasket (5) arranged on a frame (4) with a hole; a first layer of superconducting winding (6) is winded on the epoxy gasket (5); a layer of epoxy glass ribbon (7) is winded between the first layer of the superconducting winding (6) and a second layer of superconducting winding (8) which are bonded together by low-temperature epoxy resin; and epoxy glass steel strips (9) are distributed on the surface of the second layer of the superconducting winding (8) at equal intervals along the circumference direction of the winding. The superconducting wire used by the superconducting winding of the coil is formed by coating a composite matrix (2) consisting of CuNi and copper outside a superconductor (1), wherein an insulating layer (3) is coated on the composite matrix (2). The coil has higher mechanical stability and better heat transfer characteristics, and is suitable for a fast-excitation large-scale superconducting coil with high energy-storing density and high magnetic field.
Description
technical field [0001] The invention relates to a coil for a superconducting magnet winding structure with high energy storage density and high power fast pulse. Background technique [0002] Compared with other magnets, superconducting magnets have the advantages of low energy consumption, small size, light weight, and high magnetic field, so they have broad application prospects. Superconducting magnets can operate in DC and AC states, or their corresponding magnetic field conditions. Superconducting magnets operating under DC current have zero resistance and almost zero loss. Therefore, superconducting coils can often use adiabatic and stabilized winding structures, which have high engineering current density and good mechanical strength. The high magnetic field superconducting magnet operating under the condition of alternating current and magnetic field produces alternating loss in the superconducting coil due to the rapid change of current and magnetic field with time...
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IPC IPC(8): H01F6/06H01B12/02H01F41/04
CPCY02E40/641Y02E40/60
Inventor 王秋良戴银明宋守森胡新宁
Owner INST OF ELECTRICAL ENG CHINESE ACAD OF SCI