KR100826586B1 - Helium vessel support structure - Google Patents

Abstract

A helium vessel support structure is provided to hold a contracted/expanded helium vessel by hinge-combining each one side of links with helium vessel fixing units, respectively and hinge-combining the other sides of the links with vacuum vessel fixing units. A helium vessel support structure is composed of: fixing units(300,300') formed at two spots of the outer side of a helium vessel; fixing units(500) formed on the inner side of a vacuum vessel(110); and links(400,400') each one side of which is hinge-combined with the fixing units disposed on two spots of the outer side of the helium vessel and the other sides are hinge-combined with the fixing units formed on the inner side of the vacuum vessel. The fixing units of the helium vessel comprise a first plate(310) of which one side is attached to the outer side of the helium vessel and a first hinge member(320) formed on the other side of the first plate and hinge-joined with one side of the link.

Description

Helium vessel support structure

1A and 1B are structural state diagrams showing respective structures of the tokamak device.

Figure 2a is a schematic view of a typical fusion device (KSTAR), Figure 2b is a plan view of the lower plate of the conventional helium container from the top.

Figure 3 is a plan view of the lower plate of the helium container of the present invention from the top.

Figure 4 is a view showing a helium container support structure according to an embodiment of the present invention, Figure 4a is a front view, Figure 4b is a plan view, Figure 4c shows a side view.

5 is a detailed view of the helium container support structure according to an embodiment of the present invention,

FIG. 5A shows a link, FIG. 5B shows a vacuum vessel holding portion, and FIG. 5C shows a helium container fixing portion.

6A through 6C are a plan view, a bottom view, and a side view of a second hinge portion including a third plate according to an embodiment of the present invention.

7A and 7C are front views of the first link and the second link according to an embodiment of the present invention, and FIGS. 7B and 7D are cut portions of the first link and the second link according to an embodiment of the present invention. It's a bottom view.

7E and 7F are cross-sectional and side views of the coupler.

8 is a heat guide according to an embodiment of the present invention, Figures 8a and 8b is a plan view and a front view of the link clip, Figures 8c, 8d and 8e are a plan view, a side view and a front view of the extension.

9 is a detailed view of an insulator, bushing, washer and pin in accordance with one embodiment of the present invention.

<Description of the symbols for the main parts of the drawings>

110: vacuum container 120: helium container

130: helium container support structure 300, 300 ': helium container fixing portion

310: first plate 320: first hinge member

330: first hinge pin 340: bushing

351 ~ 354: Washer 400, 400 ': Link

410: first link 420: second link

430: coupler 500, 500 ': vacuum container fixing part

510: second plate 520: third plate

530: bolts 531, 531 ': bolt coupling holes

540: second hinge member 550: second hinge pin

551, 551 ': hinge hole 560: insulator

570: bushing 581-583: washer

600: heat guide 610: link clip

620: extension 630: wire

640: connector 650: bolt

660: plate 670: heat shield

The present invention relates to a helium container support structure, and more particularly, to a helium container support structure positioned between the vacuum container and the helium container to support the helium container according to the shrinkage / expansion of the helium container.

The superconducting magnets developed to date are capable of producing 13 Tesla magnetic fields, which are 260,000 times the Earth's magnetic field, which are needed to create and trap the plasma required for fusion reactions. Therefore, the core technology of the superconducting magnet is to make a superconducting magnet by forming coils by winding each wire known as a cable-in conduit-conductor (CICC). In-line twisted pair conductor (CICC) is a magnet made of conductors of 360 or 486 strands enclosed by a rectangular metal tube for 35kA class high current operation.The heat generated during operation of superconducting magnets is 4.5K. About 5 atm supercritical helium is forced to circulate into the stranded conductor.

1A and 1B are diagrams illustrating an example of a superconducting magnet manufactured in Korea. As shown in FIG. 1A, a superconducting magnet 900 (SC: Magnet) is used to trap a high temperature plasma without touching the wall of a vacuum vessel, and has a main device, a tokamak device 901. The tokamak device 901 is responsible for the generation, confinement, and control of the plasma using a TF (Toroidal Field) and PF (Poloidal Field) coil. FIG. 1B illustrates the tokamak device 901 of FIG. 1A, a TF structure 907 composed of a TF (Toroidal Field) coil, a CS structure 909 composed of a central solenoid (CS) coil, and a PF (Poroidal Field) coil. Consists of a PF structure 903 and a connecting structure 905 connecting each structure.

The coil built into the TF structure 907 is operated with a DC current of about 35 kA, and the coil of the CS structure 909 and the coil of the PF structure 903 perform pulse driving to generate an electromotive force due to mutual magnetic field change. Is generated inside to generate the plasma and serves to confine the plasma along with the plasma current and the TF magnetic field.

FIG. 2A is a schematic view of a general fusion device KSTAR, and FIG. 2B is a plan view of the lower plate of the conventional helium container 120 viewed from above.

First, a fusion device KSTAR will be described with reference to FIG. 2A.

The fusion device largely includes a power source and a helium gas supply unit 10, a current lead box (CLB) 20, and a superconducting magnet 30.

The power supply unit 10 is a device for supplying power to the superconducting magnet 30 including the current lead box 20.

The helium gas supply unit 10 is a liquid helium storage tank required for cooling the current lead-in.

The current lead box (CLB) 20 is a low temperature vacuum vessel in which a current lead wire is installed, and is composed of a vacuum vessel 21, a heat shield 22, and the like for a STAR magnet and a TF magnet. It is installed two by two.

The current lead (CL) electrically connects the superconducting coil, which is operated by cooling up to 4.5 with super-critical helium (SHe) refrigerant and power placed in the room temperature (300K) area of the KSTAR superconducting coil. Refers to the current transmission device to be connected.

The current lead wire and the superconducting magnet are electrically connected using a superconducting cable, which is referred to as a 'superconducting bus line'.

Looking at the thermal shield (TS) in more detail as follows. That is, the heat shield is attached to the inner wall of the vacuum vessel is a device for blocking the radiant heat flowing into the container.

The inside of the heat shield is maintained at a temperature close to the absolute temperature, and shrinkage and expansion according to the temperature. In addition, since the inside of the vacuum container is a vacuum state, the heat shield is floating in the air. Reference numeral 120 in FIG. 2B denotes a helium container.

The supply of helium gas in the current lead box configured as described above maintains its inside at a cryogenic temperature (about 4.5K), which causes the helium container to shrink to the center portion of FIG. 2B. At this time, a means for supporting the contracted helium container is needed.

An object of the present invention is to provide a helium container support structure which is located between the helium container and the vacuum container to support the helium container according to the shrinkage / expansion of the helium container.

In order to achieve the above object, the present invention is located between the vacuum container and helium container in the helium container support structure for supporting the helium container according to the shrinkage / expansion of the helium container,

Fastening means formed at two points on the outer surface of the helium container; Fixing means formed on the inner surface of the vacuum container; And a link having one side hinged to each of the fixing means formed at two points on the outer surface of the helium container, and the other side of the link hinged to the fixing means formed on the inner surface of the vacuum container.

Fixing means formed at two points on the outer surface of the helium container,

A plate-shaped first plate whose one side is attached to the outer side of the helium container; And a first hinge member formed on the other side of the first plate and configured to be hinged with one side of the link.

Fixing means formed on the inner surface of the vacuum vessel,

A plate-shaped second plate whose one side is attached to the inner side of the vacuum container; A plate-shaped third plate whose one side is formed on the other side of the second plate; And a second hinge member whose one side is formed on the other side of the third plate and is configured to be hinged with the other side of the link.

In the present invention is characterized in that the center of the hinge hole inner surface of the hinge member protrudes convexly so that the clearance of the link is possible by the hinge pin fitted to the hinge hole.

In addition, the present invention is characterized by consisting of the bolt coupling between the second plate and the third plate.

In addition, the present invention is characterized in that the other end of the link is configured to hinge each other.

In addition, the present invention is characterized in that it further comprises means for inducing heat transferred through the link to the outside.

As a means for inducing heat transferred through the link to the outside, it is preferable to use a material having better thermal conductivity than the link.

In addition, the present invention is characterized in that it further comprises means for adjusting the length of the link.

The means for adjusting the length of the link is preferably a turnbuckle.

In addition, the present invention is characterized in that it further comprises an insulator for insulation between the link and helium.

In addition, the present invention is characterized in that it further comprises an insulator for insulating the link and the vacuum period.

Preferably, the insulator is formed between the second plate and the second hinge member.

Preferably, the second plate and the third plate are integrally formed.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Figure 3 is a plan view of the lower plate of the helium container of the present invention from the top.

Referring to the drawings, the present invention includes a helium container support structure 130 for supporting the helium container according to the shrinkage / expansion of the helium container between the vacuum container 110 and the helium container 120.

Figure 4 is a view showing a helium container support structure according to an embodiment of the present invention, Figure 4a is a front view, Figure 4b is a plan view, Figure 4c shows a side view.

Referring to the drawings, the helium container support structure 300 according to the present invention is largely, fixing means (hereinafter, simply referred to as 'helium container fixing portion') formed on two points of the outer surface of the helium container 300, 300 ); Fixing means (hereinafter, simply referred to as' vacuum container fixing portion ') 500 and 500' formed on the inner surface of the vacuum container; And links 400 and 400 'connecting the helium container fixing part and the vacuum container fixing part.

One side of the links 400 and 400 'is hinged to the helium container fixing parts 300 and 300', and the other side is hinged to the vacuum container fixing parts 500 and 500 'to contract / expand. It serves to hold the helium container 120 organically.

Next, the configuration of the helium container fixing parts 300 and 300 ', the vacuum container fixing parts 500 and 500' and the links 400 and 400 'and their connection relations will be described in more detail.

Figure 5a is a link, Figure 5b is a vacuum vessel fixing portion, Figure 5c is a helium container fixing portion, Figures 6a to 6c is a plan view, bottom surface of the second hinge portion including a third plate according to an embodiment of the present invention Fig. And side view. 7A and 7C are front views of the first link and the second link according to an embodiment of the present invention, and FIGS. 7B and 7D are a part of the first link and the second link according to an embodiment of the present invention. Incision bottom view.

First, in the present specification, the helium container fixing part 300 and 300 'will be described. (See FIGS. 4 and 5C.)

As mentioned above, the helium container fixing parts 300 and 300 'are formed (fixed) at two points on the outer surface of the helium container.

The helium container fixing part 300, 300 ′ comprises a first plate 310 and a first hinge member 320.

One side of the first plate 310 is attached to the outer surface of the helium container, the shape of the plate is preferably.

As the fixing means between the first plate 310 and the helium container fixing parts 300 and 300 ', there is a coupling method using a screw or the like, or an integral formation method using solder or the like.

The first hinge member 320 is formed on the other side of the first plate 310, and is configured to have a hinge coupling with one side of the links 400 and 400 ′.

In the present invention, not only the link but also the first hinge member 320 to form a hole (hereinafter, referred to as a "hinge hole") for hinge coupling between the first hinge member 320 and the links 400 and 400 '.

Here, the first hinge pin 330 may be inserted into the hinge hole in a state in which the hinge hole formed in the first hinge member 320 and the hinge hole formed at one side of the links 400 and 400 'are matched. This enables the hinge movement between the first hinge member 320 and the link 400.

Of course, a predetermined groove 360 is machined in the first hinge member 320 to enable a hinge movement between the first hinge member 320 and the link 400, and the link 400 is formed in the groove 360. Configure it to be located.

In addition, in the present invention, it is preferable that the central portion of the inner side of the hinge hole of the first hinge member 320 protrudes slightly convex. This is to allow a predetermined angle of play between the links 400 and 400 'by the first hinge pin 330 inserted into the hinge hole (see FIG. 7B).

The hinge hole, the hinge member and the hinge pin are also formed in the vacuum vessel fixing portion to be described below.

Preferably, the first plate 310 and the first hinge member 320 are integrally formed.

In addition, in the present invention, an insulator is further provided to insulate between the links 400, 400 'and the helium container fixing part (more precisely, the first hinge member) 300, 300'.

The insulator includes a bushing 340, and the bushing 340 may be positioned on an outer circumferential surface of the first hinge pin 330 when the first hinge pin 330 is coupled to a hinge hole. Do.

As shown in FIG. 9B, the bushing 340 has a hollow straight shape.

When the first hinge pin 330 is coupled to the hinge hole of the first hinge member 320, a washer 351 to 353 may be added therebetween to increase the coupling force.

As shown in FIG. 9C, the washers 351 to 353 have a thin plate shape having a hollow inside.

It is preferable that the washers 351 to 353 also comprise an insulator.

Next, the vacuum container fixing parts 500 and 500 ′ will be described. (See FIGS. 4, 5B, and 6)

That is, the vacuum container fixing parts 500, 500 'includes a plate-shaped second plate 510 whose one side is attached to the inner side of the vacuum container 110; A plate-shaped third plate 520 whose one side is formed on the other side of the second plate; And a second hinge member 540 formed at the other side of the third plate and configured to be hinged with the other side of the link.

It is preferable that the second plate 510 is integrally formed with the vacuum container 110, and the second hinge member 540 and the third plate are integrally formed.

In addition, four bolt holes are formed in the second plate 510, which is machined to couple the bolt 530 with the third plate later.

The second plate 510 is provided for fixing the second hinge member 540 including the third plate 520 to the vacuum container. That is, the second hinge member 540 including the third plate 520 is coupled by coupling the third plate 520 integrally formed with the second hinge member 540 with the second plate 510 using bolts. It may be fixed to the vacuum container (110).

In the present invention, it is preferable to space the predetermined interval between the second plate 510 and the third plate 520. This is to minimize the transfer of the heat of the vacuum vessel to the third plate (520).

In addition, in the present invention, it is preferable to form the insulators 561 and 562 at the portion where the second plate 510, the third plate 520, and the bolt contact each other. That is, it is preferable to form insulators 561 and 562 having a shape as shown in FIG. 9A between the first plate 510 and the second plate 520 and between the second plate 520 and the bolt head, respectively. The insulator has a shape similar to a bushing with a hollow inside.

As shown in FIG. 6, the third plate 520 has a rectangular shape, and holes (bolt balls) 531 and 531 ′ in which bolts are inserted are formed at four corners. In addition, the second hinge member 540 is integrally formed on the other side of the third plate 520. For reference, a second plate 510 is formed on one side of the third plate 520.

The second hinge member 540 has the same configuration and function as the first hinge member 320 of the helium container.

That is, as shown in FIG. 5B, a predetermined groove 590 is processed in the second hinge member 540 so that the other side of the link can be hinged.

In addition, a predetermined hole (a hinge hole) (corresponding to 421 of FIG. 7C) is formed at the other side of the link, and a hinge hole having the same size as the hinge hole 421 is also formed in the second hinge member 540 (FIG. 6). Corresponding to 551).

In the present invention, when the second hinge pin 550 is inserted while the hinge hole 421 of the link and the hinge hole 551 of the second hinge member are aligned, the second hinge member 540 and the third plate 520 are inserted. Can be hinged to the liver.

In addition, the present invention slightly convexly protrudes a central portion of the inner side of the hinge hole of the second hinge member, so that the link is made at a predetermined angle of play by the second hinge pin 550 fitted in the hinge hole. It is for.

In the present invention, the two links 400 and 400 'may be configured to be connected to each of the hinge holes 551 and 551' as described above, but the two links 400 and 400 'have one hinge. It may be configured to be connected to the ball at the same time. That is, in the present invention, the other side of the link may be configured to be hinged to each other.

In addition, in the present invention, an insulator for insulating the link 400, 400 'and the vacuum vessel fixing part (more precisely, the second hinge member) 540 may be further provided. The insulator includes a bushing 570 and washers 581 to 583. Since the detailed description of the insulator has been made above, a description thereof will be omitted.

Next, the links 400 and 400 ′ will be described (see FIGS. 4, 5A, and 7).

That is, the link is positioned between the vacuum container fixing part 500, 500 ′ and the helium container fixing part 300, 300 ′ to organically hold the contracted / expanded helium container 120.

In the present invention, although it may be configured as a single link, the coupler 430 connecting two unit links (first link, second link) 410 and 420 and the unit link as in one embodiment of the present invention. It may be configured as. The latter case is generally called a turn buckle, and has the advantage of freely adjusting the length of the link 400.

The first and second links 410 and 420 have a symmetrical structure with only different lengths as shown in FIGS. 7A to 7D. Of course, the lengths of the first and second links may be the same.

Holes (hinge holes) 411 and 421 are machined at one edge of the first and second links 410 and 420, and threads are machined to the other outer circumferential surface of the first and second links 410 and 420. do. Here, the thread processing methods of the first link 410 and the second link 420 are opposite to each other. For example, if the first link 410 is left-handed, the second link 420 is implemented in a right-handed way.

In addition, in the present invention, as shown in Figs. 7B and 7D, the inner diameters of the holes (hinge holes) are not all the same. That is, in the present invention, the central portion of the inner side of the hinge hole protrudes slightly convex. This is to allow the link 400 to be spaced at a predetermined angle by the first and second hinge pins 330 and 550 inserted into the hinge holes 411 and 421.

As shown in FIGS. 7E and 7F, the coupler 430 has a hollow body, and threads 412 and 422 are machined on an inner circumferential surface thereof, and the threads 412 and 422 are threads machined into a link. It is processed to correspond to the method.

The hole 431 is processed at the center of the coupler 430, and a predetermined pin is inserted into the hole 431 to form an entrance boundary between the two unit links 410 and 420. In addition, the coupler 430 may be easily rotated using the pin.

The two unit links 410 and 420 are tightened to the coupler 430 or released from the coupler 430 according to the rotation direction of the coupler 430. For this reason, the helium container support structure 130 according to the present invention may be used regardless of the distance between the helium container 120 and the vacuum container 110.

8 is a heat guide according to an embodiment of the present invention, Figures 8a and 8b is a plan view and a front view of the link clip, Figures 8c, 8d and 8e are a plan view, a side view and a front view of the extension.

In the present invention, it characterized in that it further comprises a means for guiding the heat transferred through the link 410 to the outside, that is, the heat inducing unit 600.

The heat induction part 600 is provided to minimize heat transfer to the helium container fixing parts 300 and 300 ', and may be configured in various forms.

The heat induction part 600 includes a link clip 610 surrounding and holding the link 400, an extension part 620 connected to the link clip, a wire 630 connected to the extension part, and a connector 640 connected to the wire. And a plate 660 connected to the wire passing through the connector.

A coupling method between the link clip 610 and the extension part 620 includes a bolt 611 coupling method.

The wire 630 passing through the connector is connected to the heat shield 670 using a bolt 650 coupling method. In the above, the wire 630 may be directly connected to the heat shield 670.

The plate 660 is preferably used as a washer when the bolt 650 is connected. That is, in one embodiment of the present invention, the wire 630 is finally connected to the washer.

The link clip 610, the extension 620, and the wire 630 of the heat induction part may be made of a material (eg, copper, etc.) having better thermal conductivity than the links 400, 400 ′, and the plate 660. ) Is preferably made of a material (eg, silver) having a higher thermal conductivity than the link clip 610.

As shown in FIGS. 8A and 8B, the link clip 610 has a clip shape, one end of which is configured to trap a link, and a predetermined hole 611 is processed on the other side thereof.

As shown in FIGS. 8C to 8E, the extension part 620 has a hole 621 formed at one end thereof, and the hole 621 is predetermined in a state coinciding with the hole 611 formed in the link clip. By a bolt 611 or a pin.

The folded portion is preferably fixed by soldering.

A portion of the other side of the extension part 620 is folded to have a structure capable of embedding the wire 630.

While the invention has been described and illustrated in connection with a preferred embodiment for illustrating the principles of the invention, the invention is not limited to the construction and operation as shown and described. Rather, it will be apparent to those skilled in the art that many changes and modifications to the present invention are possible without departing from the spirit and scope of the appended claims. Accordingly, all such suitable changes and modifications and equivalents should be considered to be within the scope of the present invention.

Therefore, the present invention can support the helium container according to the shrinkage / expansion of the helium container by providing a helium container support structure having the structure as described above.

Claims (14)

In the helium container support structure which is located between the vacuum container and helium container to support the helium container according to the shrinkage / expansion of the helium container, Fastening means formed at two points on the outer surface of the helium container; Fixing means formed on the inner surface of the vacuum container; And Helium container supporting structure, characterized in that the one side is coupled to the hinge and the fixing means formed on two points of the outer surface of the helium container, respectively, the other side hinged to the fixing means formed on the inner surface of the vacuum container. The method of claim 1, Fixing means formed at two points on the outer surface of the helium container, A plate-shaped first plate whose one side is attached to the outer side of the helium container; And Helium container support structure formed on the other side of the first plate, characterized in that it comprises a first hinge member configured to be hinged to one side of the link. The method of claim 1, Fixing means formed on the inner surface of the vacuum vessel, A plate-shaped second plate whose one side is attached to the inner side of the vacuum container; A plate-shaped third plate whose one side is formed on the other side of the second plate; And One side thereof is formed on the other side of the third plate, the helium container supporting structure, characterized in that it comprises a second hinge member configured to be hinged to the other side of the link. The method of claim 2 or 3, Helium container support structure, characterized in that the convex projecting of the central portion of the inner side of the hinge hole of the hinge member to enable the play of the link by the hinge pin fitted to the hinge hole. The method of claim 3, wherein Helium container support structure, characterized in that consisting of the bolt coupling between the second plate and the third plate. The method according to any one of claims 1 to 3, Helium container support structure, characterized in that the other end of the link is configured to hinge. The method according to any one of claims 1 to 3, And a means for guiding heat transferred through said link to the outside. The method of claim 7, wherein The means for inducing heat transferred through the link to the outside is a helium container support structure, characterized in that using a material having a higher thermal conductivity than the link. The method according to any one of claims 1 to 3, And a means for adjusting the length of the link. The method of claim 9, And a means for adjusting the length of the link is a turnbuckle. The method according to any one of claims 1 to 3, And a helium container support structure further comprising an insulator for the link and helium term insulation. The method according to any one of claims 1 to 3, Helium container support structure further comprises an insulator for insulating the link and the vacuum period. The method of claim 12, And the insulator is formed between the second plate and the second hinge member. The method of claim 12, And the second plate and the third plate are integrally formed.

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