Conduction cooling device for high-temperature superconducting magnet

Abstract

The invention discloses a conduction cooling device for a high-temperature superconducting magnet. The conduction cooling device is characterized by comprising a columnar conduction cooling plate (1) with a circular cross section, conduction cooling copper straps (2), a cold head connecting flange (4), an anti-radiation layer (5) and an annular bracket (6), wherein at least one conduction cooling copper strap (2) is fixed on each of the two axial ends and the middle part of the conduction cooling plate (1); the other end of each conduction cooling copper strap (2) is fixed on the cold head connecting flange (4); the anti-radiation layer (5) covers the outer surface of the conduction cooling plate (1); and the annular bracket (6) is fixed outside the conduction cooling plate, and is used for shaping the conduction cooling device and simultaneously strengthening the structural strength of the whole conduction cooling device. By the conduction cooling device, a temperature gradient in a conduction-cooled single-solenoid high-temperature superconducting magnet can be reduced, and the refrigeration speed of a conduction cooling structure also can be increased; and moreover, the structure of the conduction cooling plate has a large size high cooling capacity, so that the conduction cooling device also has a heat sink function.

Description

technical field [0001] The invention relates to high-temperature superconducting magnet conduction refrigeration technology, in particular to a cooling device structure for conduction refrigeration of high-temperature superconducting magnets. Background technique [0002] With the continuous improvement of the performance of high-temperature superconducting materials and the substantial increase in the cooling power of G-M refrigerators, 20~30K (Kelvin temperature) has become the most economical operating temperature range for high-temperature superconducting high-field magnets. There are two main ways to cool a high-temperature superconducting magnet weighing hundreds of kilograms to this temperature range. The first method is low-temperature gas convective refrigeration, such as cold helium gas refrigeration. After the helium gas is cooled by the G-M refrigerator, heat is exchanged through the surface of the high-temperature superconducting magnet. The advantage of convec...

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Problems solved by technology

The main disadvantage is that the steady-state tempe

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