JPS5946579A - Diverter coil support device for nuclear fusion equipment - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a nuclear fusion device, and particularly to a support mechanism for a diverter coil installed in a vacuum vessel.

Generally, a nuclear fusion device consists of a toroidal vacuum vessel 2 that encloses a plasma 1, a voloidal magnetic field coil 3 and a toroidal magnetic field coil 4 that generate a magnetic field for plasma confinement, as shown in FIGS. 1 to 3. Supporting frame 5f
However, a diverter coil 6 and the like are installed inside the vacuum container 2 to remove impurities inside the vacuum container 2. This diverter coil 6 works together with the magnetic field generated by the plasma current to create a separadric magnetic surface 7 in the vacuum vessel 2, and guides impurities in the plasma 1 along the separadric magnetic surface 7 to a diverter plate 8 for absorbing impurities. .

This diverter coil 6 is provided in a protective tube 9 to protect it from the high temperature of the plasma 1, and support members 10A and 10 are disposed in two directions, up and down, with respect to the cross-sectional periphery of the n1 diverter coil 6.
The 8t-diverter coil 6 is interposed between the inner wall of the protection tube 9 and the diverter coil 6 is supported so as to be located at the center of the protection tube 9. Furthermore, an impactful electromagnetic force is generated in the diverter coil 6 by interaction with the plasma current and the voloidal magnetic field coil current, and this electromagnetic force acts between the diverter coil 6 and the protection tube 9. In order to absorb this impact force, a countersunk 11 stacked in the same direction is interposed in the middle of the support member 10A above the diverter coil 6. However, in this type of impact force absorption mechanism, the amount of impact force absorption displacement ΔG by the disc spring 11 is small, so that it is difficult to sufficiently absorb the impact force. Further, the impact force absorption direction is only upward, and impact forces in other directions cannot be absorbed, causing damage or destruction to the diverter coil or protective tube.

Therefore, an object of the present invention is to be able to sufficiently absorb the impact force generated in the diverter coil in such a nuclear fusion device, and to prevent the diverter coil or the protective tube from being damaged or destroyed.

In order to achieve this objective, the present invention provides a support member that supports the diverter coil in a vacuum vessel with curved spring plates stacked in opposite directions, thereby increasing the amount of impact force absorption and displacement. It is characterized by being able to be fully absorbed.

Figure 4 is a cross-section of the support iJ of the diverter coil installed in the protective tube of the nuclear fusion device according to one embodiment of this @ Ming fusion device, and the other components of the device are the same as the conventional device, so they are omitted. ing.

The diverter coil 6 is arranged between the inner wall of the protection tube 9 fixed in the vacuum container (not shown) by the diverter plate 8 and the diverter coil 6 so as to be radial in four directions, up, down, left and right with respect to the cross-sectional periphery of the diverter coil. Support member 1 arranged
Supported by 2A-12D. and each support member 1
2A to 121) are divided in the middle, and each of the six disc springs 13A and 13B' are interposed in opposite directions stacked on each divided surface.

Therefore, the impact force absorption displacement amount Δ due to the countersunks 13A and 13B
G2 is larger than the impact force absorption displacement amount ΔG1 of the conventional device, so that the impact force absorption ability is improved and the ability to prevent damage or destruction of the diverter coil and protection tube is improved. Furthermore, such a disc spring 13A.

13B is each support member 12A arranged radially in four directions.
Since they are interposed in each of the elements 1 to 12D, the impact force in all directions can be fully absorbed, and the above-mentioned damage or destruction prevention performance is further improved.

As described above, according to the present invention, by interposing curved spring plates bent in opposite directions to the support member supported in the diverter coil total vacuum controller, the amount of shock absorption displacement is increased and the diverter coil is By making it possible to sufficiently absorb the impact chips that occur during operation, damage or destruction of the diverter coil or protective tube can be prevented.
This has the effect of increasing the reliability of nuclear fusion devices.

[Brief explanation of the drawing]

Figures 1 to 3 show a conventional nuclear fusion device, with Figure 1 being a partially cutaway plan view, Figure 2 being a vertical side view, and Figure 3 being a vertical side view of the diverter coil support. FIG. 4 is a longitudinal sectional side view of the diverter coil support portion of the fusion device according to the present invention. 2... Vacuum vessel, 6... Diverter coil, 9...
・Protection tube, 12A to 12D...Support member, 13A, 1
3B country l

Claims (1)

[Claims] 1. In a nuclear fusion device including a diverter coil in a vacuum vessel, a support member that supports the diverter coil in the vacuum vessel is provided with curved deflection plates stacked in opposite directions. A nuclear fusion device featuring ft. 2. In claim 1, the diverter coil is provided in a protection tube fixed in a vacuum container, and the support member is inserted between the diverter coil and the inner wall of the protection tube 40,000 times with respect to the cross-sectional periphery of the diverter coil. A nuclear fusion device characterized by its radial arrangement.