Quenching triggering device for stellarator superconducting magnet
A superconducting magnet and triggering device technology, applied in the direction of magnetic performance measurement, etc., can solve the problem of inability to simulate the mechanical disturbance of the superconducting magnet of the star simulator, and achieve the effect of simple structure and easy operation.
Active Publication Date: 2013-07-24
INST OF ELECTRICAL ENG CHINESE ACAD OF SCI
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[0006] The purpose of the present invention is to overcome the disadvantage that the existing quench trigger device cannot simulate the mechanical disturbance of the stellarator superconducting magnet, and provide a quench trigger device that can provide controllable mechanical disturbance in a low temperature and strong magnetic environment
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[0016] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0017] The quench trigger device of the present invention includes a cryogenic container 1, a superconducting magnet 2, an energy transmission rod fixing structure 3, an energy transmission rod 4, a vacuum interface 5, an adapter flange 6, an inner bellows 7, an outer bellows 8, and a guide rail 9 , mechanical hammer support structure 10, mechanical hammer 11, navigation sheet 12, support rope 13 and traction rope 14.
[0018] Such as figure 1 As shown, the superconducting magnet 2 is in the cryogenic container 1 . The right outer surface of the superconducting magnet 2 is welded with an energy transmission rod fixing structure 3 . The energy transmission rod 4 is made of stainless steel and is cylindrical. The left end of the energy transmission rod 4 is connected to the energy transmission rod fixing structure 3 . A vacuum interface 5 is i...
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The invention discloses a quenching triggering device for a stellarator superconducting magnet, which comprises a superconducting magnet (2) in a low-temperature container (1). One end of an energy transmission rod (4) penetrates through an external corrugated tube (8), an inner corrugated tube (7), an adapter flange (6) and a vacuum interface (5) in sequence; the other end of the energy transmission rod which is at normal temperature is arranged in the low-temperature container and connected with the superconducting magnet (2) through an energy transmission rod fixing structure (3); a mechanical hammer (11) is elevated to a given height under the pulling of a drag rope (14) to store gravitational potential energy; then the mechanical hammer (11) falls downs after the drag rope is loosened; a navigation sheet (12) slides in a groove on a guide rail (9), the mechanical hammer (11) is in collision with the centre of a normal end of the energy transmission rod (4) to transmit the energy to the superconducting magnet (2) through the energy transmission rod (4), thereby triggering the superconducting magnet (2) to quench. The quenching triggering device is suitable for the mechanical stability testing of the stellarator superconducting magnet.
Description
technical field [0001] The invention relates to a quench trigger device, in particular to a quench trigger device used for a stellarator superconducting magnet. Background technique [0002] Superconductors can only exhibit superconducting properties when certain conditions are met. Once the conditions are broken, the superconductor changes from a superconducting state to a normal state, a process known as quenching. The quenching of a superconducting magnet usually starts locally in a certain coil, the so-called point disturbance. When the superconducting magnet quenches, the normal state region begins to propagate and diffuse in the superconducting magnet. [0003] The quenching process of a superconducting magnet is the conversion process of electromagnetic energy stored in the superconductor into thermal energy. The area that first turns into a normal state has the longest ohmic heating time and the highest temperature. Local overheating may cause damage to the magnet...
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IPC IPC(8): G01R33/12
Inventor 陈鹏王秋良
Owner INST OF ELECTRICAL ENG CHINESE ACAD OF SCI