JPS6018032B2 - nuclear fusion device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a fusion device, and more particularly to a nuclear fusion device in which a donut-shaped vacuum container containing plasma therein is supported on a base via support legs.

In recent years, nuclear fusion devices have been actively developed due to their advantages such as inexhaustible resources and clean energy.

-Suji' This nuclear fusion device has a donut-shaped vacuum vessel, in which toroidal coils are arranged radially to surround the vacuum vessel, and the magnetic field formed by the toroidal coils generates plasma inside the vacuum vessel. It is designed to hold.

The schematic configuration of the nuclear fusion device will be explained using FIG. 1 and FIG. 2.

In the figure, 1 is a doughnut-shaped vacuum container with a thick wall part la.
The bellows portion lb is formed by alternately joining silk in the torus direction, and the plasma 2 is housed inside the bellows portion lb.

Reference numeral 3 denotes a plurality of toroidal coils arranged at predetermined intervals in the torus direction so as to surround the vacuum vessel 1, and generate a magnetic field for confining the plasma 2 within the vacuum vessel 1.

Po to stabilize plasma 2. The coil is arranged in a torus direction along the vacuum vessel 1. 5 and 6 vacuum vessel 1 ~ and toroidal coil 3
The upper and lower bases support the upper and lower sides of the
The toroidal coil 3 is connected to the upper and lower bases 5 via the mounts 7a and 7b to the vacuum container via the support chest 8a and the fin b, respectively.
The s-axis is supported.

In addition, 9 is iron ○. In a nuclear fusion device configured in this way, ``in particular, the vacuum vessel W has an inward force FM of the torus due to the interaction of the current flowing as a secondary force of the plasma 2 with various magnetic fields surrounding it, and an outward force of the torus. Electromagnetic force such as the force Fxo ~ Or, because the vacuum vessel Kaminai is a vacuum, a horizontal force acting as a vacuum force Fv is added inward to the torus as a composite force of the force received from the atmosphere, or the heat received from the plasma 2. , there is a force that tends to expand upon receiving baking heat.

Normally, the surface of the vacuum container 1 that comes into contact with the plasma 2 is baked prior to or between uses in order to increase the degree of vacuum.

This baking process involves low-temperature "gas inside the vacuum container wall, which cannot be sufficiently removed by a vacuum pump (not shown) at room temperature.
This is an operation in which moisture, gas, moisture, etc. in the vacuum container wall crevices are expelled by heating the container wall and discharged by a vacuum pump to improve the degree of vacuum. The baking heating temperature at this time should be kept as high as possible without interfering with the structure L material of the vacuum vessel 1 and its functions, but for nuclear fusion devices, the ultra-high vacuum is better. In addition, since a stable plasma 2 can be obtained, the baking heating temperature has recently reached 600° C. or higher. For this reason, by performing baking, the vacuum vessel 1 becomes extremely hot-blooded, and in particular, as recent nuclear fusion devices have become larger in size, this mirror orientation is noticeable. However, as mentioned above, the subordinate vacuum container 1 has a supporting chest 8 on the upper and lower bases 5 and 6.
Since it is supported by a and 8b, when the vacuum container 1 undergoes thermal expansion, the thermal expansion is restricted above and below.

If the thermal expansion of the vacuum container 1 is restricted in the vertical direction, the thermal stress generated therein will exceed the critical stress of the material. There is a risk that the vacuum container 1 may be damaged. In addition, as mentioned above, horizontal electromagnetic force or vacuum force acts on the vacuum container, so there is a risk that the vacuum container may be damaged. The purpose of this invention is to provide a nuclear fusion device in which the vacuum vessel is not affected by the thermal expansion of the vacuum vessel as much as possible, and which also supports the force applied in the horizontal direction of the vacuum vessel. .

The present invention supports a vacuum container on either the upper or lower side of a base via a supporting member, and is arranged along the torus direction of the vacuum container, and is supported by the thick part of the vacuum container to form a substantially ring-shaped structure. The intended purpose is achieved by providing a supporting portion which is formed and supports the horizontal force acting on the vacuum container. Explain in detail.

Incidentally, the same reference numerals are used for the same parts as in the prior art. Third
An embodiment of the present invention is shown in FIG.

Since its schematic configuration is almost the same as the conventional one, detailed explanation will be omitted here. In this embodiment, the vacuum container tortoise is supported by the lower base 61 and two supporting breasts, and is not supported by the upper base 8.

This support is performed at appropriate intervals across the entire bridge of the vacuum vessel turtle. In addition, a cylindrical support ring (supporting member) turtle fin is placed along the upper inner circumference of the vacuum container, and is supported by a protrusion provided on the thick wall a of the vacuum container. There is. The details are shown in Figures 5 and 6.
6 is a plan view of the surrounding area.
As shown in the figure, protrusions 13t are provided above the inner circumferential side of each thick-walled part vine a forming the vacuum container tatami, and connecting fittings 13t are connected to these protrusions 11 through insulating plates 12 that cut off electricity and heat. The support rings 0 are also connected using insulating bolts 4.
This support ring 10 is usually divided into a plurality of parts in the torus direction.
Connecting flanges 15a and hooks 5b are provided at the divided portions of the support rings 10 to connect adjacent support rings 10 to each other.
An insulating plate 16 for fin air insulation in the torus direction is interposed between them, and the connection is made using an insulating bolt 17t and a nut 18. When the final connection is completed, the support ring 10 is connected together to form a cylinder. It has a shape and is fixed to the projection 11. By adopting the structure of this embodiment as described above, even if the baking heating temperature becomes high and the vacuum container 1 thermally expands, only the lower part of the vacuum container 1' can be attached to the lower base via the support legs 8b. Since the vacuum container 11 is supported, there is nothing restraining the upper part, and the vacuum container 11 can freely expand upward.

Therefore, even if the vacuum container 1 expands thermally, it is not restrained, so no thermal stress is generated, and there is no fear that the vacuum container 1 will be damaged. Furthermore, since there is no support leg above the vacuum vessel wing, a space is formed in this part. Utilizing this space has the effect that various operations, tests, etc. can be performed very easily. In addition, since the support ring amount RO is installed along the inner circumferential side of the vacuum container 1, even if the horizontal fin magnetic force FM and the horizontal vacuum force Fv act inward to the torus of the vacuum container wing, these can be held sufficiently by the support ring IQ.Explaining this in more detail using the turtle diagram, inside the vacuum vessel Sergeant Torus,
When the outward electromagnetic forces FM, , FMo and the vacuum force Fv act, they are actually withstood by the reaction forces R8, , R82 of the supporting legs 8b and the pressure of the supporting breast crab b. That is, when the electromagnetic forces FM, FMo act on the vacuum vessel 1, the vacuum vessel 1 cannot withstand these forces and collapses inward because a bellows is formed between the thick parts. . A reaction force Rs of the support ring 18 and a reaction force R8, RB2 of the support leg 8b are generated as forces supporting this. The lower base 6
If the height from the fixed surface of the support ring blade 0 to the support ring blade 0 is Hs, the height of the support leg 8b is HB, and the height from the fixed surface of the lower base 6 to the center of the vacuum vessel 1 is Hv, the above reaction force and The electromagnetic force and vacuum force acting on the vacuum vessel are maintained as the force relationship shown by the following '11, (2) equation. FV+FM, NiRS+RBI+RB2・”{1}(F, 10FM,)×H
v = Rs × Hs 10 (RB, 10 RB2) × HB...{21 Also, since the support ring IQ is constructed by connecting multiple parts, it can be integrated into one piece according to the size of the vacuum vessel 1. It has the advantage of being easier to assemble and easier to connect than those that are formed.

Note that the string magnetic force is directed outward from the torus (indicated by the dotted line in Figure 4).
Of course, it is possible to support the support ring in the same way even if the support ring is 0. FIG. T shows another embodiment of the invention.

In the embodiment shown in the figure, a support ring 10 is provided above the outer peripheral side of the vacuum container 1. The other foundations are exactly the same as in the above-mentioned embodiment, and the effects are also the same as in the above-mentioned embodiment. Figure 8 shows another example of a support village.

The support member shown in the figure is a support member that fixes and connects a plurality of divided wing members OA each having a rectangular cross section in the same manner as described above, and forms a polygonal support member when the connection is completed.
Even with such a supporting village, the effect is the same as described above. In addition, in the example explained so far, the vacuum container was fixed to the lower base via the support legs, but even if the vacuum container is fixed to the upper base via the support legs, it is free from thermal expansion. Needless to say, the effect is the same since the vacuum container is not restricted.

According to the nuclear fusion machine of the present invention as described above, the vacuum vessel is supported on either the upper or lower side of the base via the supporting member, and is also arranged along the torus direction of the vacuum vessel. Since it is equipped with a support member that is supported by the thick wall part and is formed into an almost ring shape and supports the horizontal force acting on the vacuum container, even if the vacuum container is stretched due to heat transfer, there is no problem in either the upper or lower direction. The container is not restrained and can expand freely, and even if electromagnetic force or vacuum force acts in the horizontal direction, it can be held sufficiently by the supporting part, so there is no chance of the vacuum container being damaged. It is very effective when used for counterfeiting seed nuclear fusion equipment.

The simplified figure of the drawings is a partially sectional plan view of a conventional nuclear fusion device with the upper base omitted, FIG. In one embodiment of the fusion device, the upper base is omitted,
A partially sectional plan view, FIG. 4 is a B-B sectional view,
5 is an enlarged view of part A in FIG. 4, FIG. 6 is a plan view of the area around FIG. 5, and FIG. 7 is a diagram corresponding to FIG. 4, showing another embodiment of the nuclear fusion device of the present invention. , FIG. 8 shows another embodiment of the support member and corresponds to FIG. 6.

Blue... Vacuum container " Tortoise a... Thick interior, Tortoise b... Bellows part, 2... Plasma ~ 3... Toroidal coil " 4... Poloidal coil, 5... Upper base ,6
...Lower base, 8a, 8b...Support leg ~ 9...Iron 0, Tortoise 0...Support ring, Tortoise]...Vacuum container protrusion, 12
, 16... Insulating plate 13... Connecting metal fittings, 14...
...Insulating bolt for connection, 15a, 15b... Connection flange "Turtle 7... Insulating bolt for connection, 18""" nut.

Figure’ Figure 2 Kaya J fungi hair 4 diagram group diagram Figure 5 Figure 7 Little brother 8

Claims (1)

[Scope of Claims] 1. A donut-shaped vacuum container that stores plasma therein and is formed by alternately arranging thick-walled parts and bellows parts in the direction of the torus, and a torus-shaped vacuum container that surrounds the vacuum container and that is formed by alternately arranging thick-walled parts and bellows parts in the torus direction. A nuclear fusion device comprising: a plurality of toroidal coils arranged at predetermined intervals in a direction; a base that supports the toroidal coils from above and below; and support legs that support the vacuum vessel on the base; supports the vacuum container on either the upper or lower side of the base, is arranged along the torus direction of the vacuum container, and is supported by a thick part of the vacuum container and is formed into a substantially ring shape. The fusion device is characterized in that it includes a support member that supports horizontal forces acting on the vacuum container. 2. The vacuum container is supported by a lower base, and a projection is provided on the inner circumferential side of a thick portion of the vacuum container, and the support member is fixed to the projection via an insulator. The fusion device according to item 1. 3. The vacuum container is supported by a lower base, and a projection is provided on the outer circumferential side of the thick part of the vacuum container, and the supporting member is fixed to the projection via an insulator. The fusion device according to item 1. 4. The support member is divided into a plurality of parts in the torus direction, and is arranged along the vacuum vessel, and is connected to adjacent support member division parts with an insulator interposed therebetween, so as to be substantially concentric with the vacuum vessel. The fusion device according to claim 1, 2 or 3, characterized in that it is integrally formed in a ring shape.