a large d-shaped nb 3 Sn superconducting coil heat treatment uniform temperature heat transfer device
A superconducting coil, large-scale technology, applied in coil manufacturing, heating room maintenance, lighting and heating equipment, etc., can solve the problems of irregular shape of D-shaped superconducting coil, large heat treatment furnace loading, complicated process control, etc. Achieve the effect of reducing the risk of local overheating, improving safety and reliability, and reducing gas vortex
Active Publication Date: 2022-03-08
HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
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Problems solved by technology
[0007] (2) The shape of the D-shaped superconducting coil is irregular, which may easily cause local overheating in heat treatment;
[0008] (3) The superconducting coil is bulky, which makes the heat treatment furnace difficult and the process control is complicated
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[0031] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0032] Such as figure 1 , figure 2 , image 3 As shown, the present invention proposes a large D-shaped Nb 3 Sn superconducting coil heat treatment uniform temperature heat transfer device, including: D-shaped cover plate, D-shaped uniform temperature radiation screen and D-shaped bottom plate;
[0033] see figure 1 , the D-shaped cover plate is divided into an argon gas outlet pipe 1, a cover plate sealing plate 2, an even outflow orifice pla...
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Abstract
The invention discloses a large D-shaped Nb 3 Sn superconducting coil heat treatment uniform temperature heat transfer device, including: D-shaped cover plate, D-shaped uniform temperature radiation screen and D-shaped bottom plate; The air hole plate and the guide fins, the guide fin array is installed on the uniform air outlet hole plate, and the uniform outflow air hole plate is installed on the cover plate sealing plate, and multiple sets of argon gas outlet pipes are installed on the cover plate sealing plate; The D-shaped uniform temperature radiation screen includes a D-shaped inner temperature uniform radiation screen and a D-shaped outer temperature uniform radiation screen. The advantage of the present invention is that the combination of the uniform temperature heat transfer device and the argon protection heat treatment method can improve the heat treatment temperature uniformity of the workpiece and improve the Nb 3 Superconducting properties of Sn superconducting coils. The uniform temperature heat transfer device can effectively reduce the gas eddy current on the surface of the coil, reduce the risk of local overheating of the superconducting coil, and at the same time greatly reduce the construction cost of the heat treatment equipment.
Description
technical field [0001] The present invention relates to large D-shaped Nb 3 Sn superconducting coil heat treatment technical field, especially a large D-shaped Nb 3 Sn superconducting coil heat treatment uniform temperature heat transfer device. Background technique [0002] The China Fusion Engineering Test Reactor (CFETR) is a tokamak test device independently designed and built by China. The CFETR magnet system mainly includes longitudinal field coils (TF), poloidal field coils (PF), and center solenoid coils (CS). There are 16 groups of CFETR TF coils. The TF superconducting coils are shaped like a capital D. The TF coils have a large radius of about 9m, a small radius of about 6m, a height of about 1m, and a thickness of about 0.8m. The TF coils are mainly used to generate a hoop magnetic field. , used to confine the plasma. [0003] The development of TF coils is the key technology for constructing CFETR superconducting magnet system. The TF superconducting coil w...
Claims
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IPC IPC(8): F27D7/06H01F41/04
CPCF27D7/06H01F41/048F27D2007/063
Inventor 王维俊于敏秦经刚武玉李建刚
Owner HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI