JPH0332006A - cryogenic support - Google Patents

Abstract

PURPOSE:To eliminate a projecting shape on the surface of a supporting body and to prevent damages caused by hitting during the manufacture of conveyance by embedding a cooling pipe wherein refrigerant passes in a cryogenic supporting body for supporting a superconductive coil in a cryogenic state. CONSTITUTION:A groove 4 is formed in a cryogenic supporting body 2. A cooling pipe 5 wherein refrigerant passes is embedded in to said groove 4. Thereafter, the pipe is connected mechanically and thermally to the supporting body 2 by welding. When the refrigerant 5 is made to flow in the pipe 5, intrusion of heat into the superconductive coil from the outside can be prevented. When the cooling pipe is embedded in the supporting body, a projecting shape on the surface of the supporting body is not formed, and damages due to shocks during the manufacture and conveyance can be prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a cryogenic support comprising a superconducting coil supported at a cryogenic temperature by a support.

[Prior Art] Fig. 4 is a perspective view showing a conventional cryogenic support disclosed in, for example, Japanese Patent Application Laid-Open No. 54-81099, and Fig. 5 is a sectional view of the main part of Fig. 4. , (1) is a superconducting coil, (2) is a support supporting the superconducting coil (1), (3
) is a cooling pipe attached to the surface of the support (2) in order to cool the support (2) to the same temperature as the superconducting coil (1).

Next, the operation will be explained. The superconducting coil (1) is cooled by a coolant such as liquid helium or supercritical pressure helium, and is maintained in a superconducting state. The support body (2) functions as a stand to support the electromagnetic force generated when the superconducting coil (1) is energized, and to support the superconducting coil (1) from the outside. It functions as a heat shield from the intrusion of heat. The mechanical function of the support (2) is ensured by the support (2) itself, but the thermal function is provided by liquid in the cooling tube (3) disposed on the surface of the support (2). By flowing helium, supercritical pressure helium,
This function is ensured.

[Problem to be solved by the invention] The conventional cryogenic support is constructed as described above, and the support (
Since the cooling pipe (3) is arranged on the outer surface of the superconducting magnet (2), the cooling pipe (3) protrudes from the support (2). For example, there was a problem in that it was easy to damage jigs and the like.

This invention was made to solve the above-mentioned problems, and the protruding shape of the surface of the support body is eliminated, thereby preventing damage caused by collisions during the production and transportation of superconducting magnetostats. The purpose is to obtain a cryogenic support.

[Means for Solving the Problems] A cryogenic support according to the present invention has a cooling pipe through which a refrigerant passes embedded in the support.

[Function] The cryogenic support according to the present invention eliminates the protruding shape on the surface of the support by embedding the cooling pipe in the support.

[Example] Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a sectional view of essential parts showing an embodiment of the present invention.
The same or equivalent parts as in FIGS. 4 and 5 are shown, and the explanation thereof will be omitted.

In the figure, (4) is a groove formed in the support (2), (
5) is a cooling pipe buried in the groove (4), and this cooling pipe (5)
) is embedded in the groove (4) and then mechanically and thermally joined to the support (2) by welding.

In the cryogenic support configured in this way, the cooling pipe (5)
By flowing a coolant inside the support body (2), the support body (2) is cooled and heat intrusion into the superconducting coil (1) from the outside is prevented.

FIG. 2 shows another embodiment of the present invention, in which (6) is solder soldered between the tube (4) and the cooling pipe (5).

FIG. 3 shows still another embodiment of the present invention, (
7) is a compound material with good thermal conductivity such as epoxy or vacuum grease filled between the groove (4) and the cooling pipe (5);
(8) is a holding plate for pushing and fixing the cooling pipe (5) into the groove (4), and (9) is for holding the holding plate (8) into the support body (2).
Support (2) and cooling pipe (5) with screws for fixing to
Thermal connection between the support body (2) and the cooling pipe (5) is made using a compound material (7), and the mechanical connection between the support body (2) and the cooling pipe (5) is made using a holding plate (8) and screws (0).
It is being carried out in

[Effects of the Invention] As explained above, in the cryogenic support of the present invention, since the cooling pipe is embedded in the support, there is no protruding shape on the surface of the support, and for example, the cryogenic support of the present invention does not have a protruding shape when manufacturing or transporting a superconducting magnet. This has the effect of preventing damage caused by collision with tools, etc.

[Brief explanation of drawings]

FIG. 1 is a cross-sectional view of a main part showing one embodiment of the present invention, FIG. 2 is a cross-sectional view of a main part showing another embodiment of the invention, and FIG. 4 is a perspective view showing an example of a conventional cryogenic support, and FIG.
It is a sectional view of the main part of the figure. In the figure, (1) is a superconducting coil, (2) is a support,
(4) is a groove, (5) is a cooling pipe, (7) is a compound material,
(8) is a holding plate, and (9) is a screw. In each figure, the same reference numerals indicate the same or corresponding parts. Figure 1 Figure Figure 2 Figure 3 Figure 1 - 3 electric E1 coil

Claims (1)

[Claims] A cryogenic support comprising a superconducting coil supported at a cryogenic temperature by a support, characterized in that a cooling pipe through which a refrigerant passes is embedded in the support.