A brazing fixture for a deflector closed V-angle structure

Abstract

The present application relates to the technical fields of partial filter manufacturing, in particular to a brazing tool for the closed V-shaped angle structure of partial filter, which comprises two groups of symmetrically arranged clamping units, the clamping unit comprises an outer clamping plate and an inner clamping plate, the outer clamping plate and the inner clamping plate are arranged in parallel at intervals, the outer clamping plate and the inner clamping plate are connected through a first connecting assembly, a side brazing area for mounting and clamping the side plate is formed between the outer clamping plate and the inner clamping plate, the upper end of the outer clamping plate of the two groups of clamping units is connected through a second connecting assembly, and a normal brazing area for clamping the normal brazing surface is formed. The normal brazing surface and the side brazing surface are uniformly clamped through the outer clamping plate and the inner clamping plate, so that the gap meets the requirements, and the brazing quality is improved.

Description

Technical Field

[0001] This invention relates to the field of divertor manufacturing technology, and in particular to a brazing fixture for a closed V-shaped angle structure of a divertor. Background Technology

[0002] The divertor is one of the most crucial components inside a tokamak magnetic confinement fusion device, as it directly withstands the bombardment of high-temperature plasma, with its first wall surface temperature reaching thousands of degrees Celsius. A mature technology utilizes circulating coolant flowing through the divertor's first wall to cool it while simultaneously carrying away heat. The materials and structure of the divertor's first wall are unique: the plasma-facing material must possess high thermal conductivity to rapidly transfer heat to the heat sink; cooling channels are arranged within the heat sink to facilitate coolant flow; and the heat sink must have sufficient structural strength to meet the thermal stress and coolant pressure requirements at high temperatures.

[0003] Currently, the flat plate type is one of the main structures for the first wall of a divertor. In the flat plate structure, tungsten copper sheets are generally chosen as the plasma-facing material, and copper-steel composite plates are used as the heat sink material to meet the requirements of high thermal conductivity and structural strength; the cooling channels are arranged inside the copper-steel composite plates. After the cooling channels are processed, they need to be sealed with steel covers to form a complete cooling channel.

[0004] To accommodate plasma configuration flexibility and better meet operational requirements, existing open-type flat-plate divertors are redesigned into closed V-shaped angle structures. This structure typically consists of two symmetrically arranged side plates, such as... Figure 1 As shown. The complete flat-plate divertor with a closed V-shaped corner structure on the first wall includes a cover plate, a composite plate, and a tungsten copper sheet. The tops of the two composite plates are bonded together to form a V-shaped corner structure, and the bonding surface at this point is the positive brazing surface. The two sides of the composite plate are bonded to the cover plate and the tungsten copper sheet respectively, and the bonding surfaces at this point are the side brazing surfaces.

[0005] During brazing, the gap between brazing surfaces generally needs to be controlled within 0.03mm. However, the positive brazing surface and the side brazing surface are not parallel to each other. Ordinary clamps cannot clamp the side plate evenly as a whole. In addition, the closed V-shaped angle structure is small in size, which makes it impossible for ordinary clamps to control the gap of all brazing surfaces at the same time as required, especially the gap of the positive brazing surface, which affects the overall brazing quality. Summary of the Invention

[0006] The technical problem to be solved by the present invention is that the existing clamping plate is difficult to clamp the two side plates evenly, which makes it impossible for the gap between the brazing surfaces to meet the requirements at the same time, resulting in low brazing quality.

[0007] To address the aforementioned technical problems, this invention provides a brazing fixture for a closed V-shaped angle structure of a divertor, comprising two sets of symmetrically arranged clamping units. Each clamping unit includes an outer clamping plate and an inner clamping plate, which are arranged parallel to each other at intervals. The outer clamping plate and the inner clamping plate are connected by a first connecting assembly, and a side brazing area for installing and clamping a side plate is formed between the outer clamping plate and the inner clamping plate. The upper ends of the outer clamping plates of the two sets of clamping units are connected by a second connecting assembly, forming a positive brazing area for clamping the positive brazing surface.

[0008] Furthermore, the outer clamping plate includes a clamping part and a fixing part, the clamping part and the fixing part are integrally formed, the clamping part is arranged parallel to the inner clamping plate at intervals, the fixing part is arranged parallel to the fixing part of the outer clamping plate of another set of clamping units at intervals, and the two fixing parts are connected by the second connecting component.

[0009] Furthermore, the outer clamping plate also includes reinforcing ribs, which connect the fixing part and the clamping part.

[0010] Furthermore, a pressure plate is installed at the end of the outer clamping plate away from the positive brazing area, and a clamping screw for pushing the side plate to move is installed on the pressure plate.

[0011] Furthermore, both the first connecting assembly and the second connecting assembly include a lead screw and a nut. The lead screw has external threads on its outer circumferential surface near both ends, and the nut is installed on the lead screw through the external threads.

[0012] Furthermore, a tie rod is installed at the end of each of the two outer clamps away from the positive brazing area.

[0013] Furthermore, the outer clamping plate has through holes for the water inlet and outlet pipes to extend out.

[0014] Compared with the prior art, the brazing fixture for a closed V-shaped angle structure of a divertor according to an embodiment of the present invention has the following advantages: a side brazing area is formed between the outer clamping plate and the inner clamping plate for installing and clamping the side plate; a positive brazing area is formed at the upper end of the outer clamping plate for clamping the positive brazing surface; the side plate to be brazed is installed in the side brazing area; the positive brazing surface and the side brazing surface are evenly clamped by the outer clamping plate and the inner clamping plate so that the gap meets the requirements and the brazing quality is improved. Attached Figure Description

[0015] Figure 1 It is a flat plate type divertor with a closed V-shaped corner structure on the first wall.

[0016] Figure 2 This is a structural schematic diagram of an embodiment of the present invention.

[0017] Figure 3This is a schematic diagram of the structure of the outer clamping plate in an embodiment of the present invention.

[0018] In the figure, 1 is the clamping unit; 11 is the outer clamping plate; 111 is the clamping part; 112 is the fixing part; 113 is the reinforcing rib; 12 is the inner clamping plate; 13 is the first connecting assembly; 14 is the second connecting assembly; 2 is the pressure plate; 3 is the clamping screw; 4 is the pull rod; 5 is the through hole; 6 is the side plate; 61 is the cover plate; 62 is the composite plate; 63 is the tungsten copper sheet; 64 is the positive brazing surface; 65 is the side brazing surface. Detailed Implementation

[0019] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and are not intended to limit the scope of the invention.

[0020] like Figure 2-3 As shown in the preferred embodiment of the present invention, a brazing fixture for a closed V-shaped angle structure of a divertor includes two sets of symmetrically arranged clamping units 1. Each clamping unit 1 includes an outer clamping plate 11 and an inner clamping plate 12, which are arranged parallel to each other at intervals. The outer clamping plate 11 and the inner clamping plate 12 are connected by a first connecting assembly 13, forming a side brazing area for installing and clamping a side plate 6 between the outer clamping plate 11 and the inner clamping plate 12. The upper ends of the outer clamping plates 11 of the two sets of clamping units 1 are connected by a second connecting assembly 14, forming a positive brazing area for clamping the positive brazing surface 64. In use, the two side plates 6 are placed in the side brazing areas on both sides respectively, and moved upward along the side brazing areas to bring the positive brazing surfaces 64 together. At this time, the side brazing surfaces 65 and the positive brazing surfaces 64 can be clamped by the first connecting assembly 13 and the second connecting assembly 14, achieving a uniform clamping effect so that the gap between the brazing surfaces meets the requirements and the brazing quality is improved.

[0021] In this embodiment, both the first connecting component 13 and the second connecting component 14 include a lead screw and a nut. The lead screw has external threads on its outer peripheral surface near both ends, and the nut is installed on the lead screw through the external threads.

[0022] like Figure 3 As shown, the outer clamping plate 11 includes a clamping part 111 and a fixing part 112. The clamping part 111 and the fixing part 112 are integrally formed. The clamping part 111 is arranged parallel to the inner clamping plate 12 at intervals. The fixing part 112 is arranged parallel to another fixing part 112 at intervals. The two fixing parts 112 are connected by a second connecting component 14. In this embodiment, a reinforcing rib 113 is connected between the fixing part 112 and the clamping part 111 to improve the strength of the outer clamping plate 11. At the same time, the included angle between the fixing part 112 and the clamping part 111 is greater than 90° and less than 180° so that the fixing parts 112 can be arranged in parallel, which facilitates the connection of the second connecting component 14.

[0023] Furthermore, a pressure plate 2 is installed at the lower end of the outer clamping plate 11. A clamping screw 3 for pushing the side plate 6 to move is installed on the pressure plate 2. In use, a certain preload is first applied to the side plate 6 through the first connecting assembly 13. Then, the clamping screw 3 is rotated to move it and push the side plate 6 to move, so that the positive brazing surfaces 64 of the two side plates 6 are in contact with each other.

[0024] Furthermore, a tie rod 4 is installed at the end of each of the two outer clamping plates 11 away from the positive brazing area. The tie rod 4 is installed on the side wall of the outer clamping plate 11 and its two ends are connected to the outer clamping plates 11 on both sides, which can improve the strength and stability of the brazing fixture. At the same time, the outer clamping plate 11 is provided with through holes 5 for the extension of water inlet and outlet pipes, which are used to adapt to the water inlet and outlet ports designed on the side plate 6.

[0025] The working process of this invention is as follows: When in use, the two side plates 6 are placed in the side brazing areas on both sides respectively, and moved upward along the side brazing areas so that the positive brazing surfaces 64 are put together. At this time, the side brazing surfaces 65 and the positive brazing surfaces 64 can be clamped by the first connecting component 13 and the second connecting component 14 to achieve a uniform clamping effect, so that the gap between the brazing surfaces meets the requirements and the brazing quality is improved.

[0026] In summary, this invention provides a brazing fixture for a closed V-shaped angle structure of a divertor. A side brazing area is formed between the outer and inner clamping plates for installing and clamping the side plate. The upper end of the outer clamping plate is connected to form a positive brazing area for clamping the positive brazing surface. The side plate to be brazed is installed within the side brazing area. The outer and inner clamping plates uniformly clamp the positive and side brazing surfaces to ensure the gap meets requirements, thus improving brazing quality. The pressure plate and clamping screw can push the side plate to move, facilitating adjustment of its position. The design of the tie rod and reinforcing rib improves the strength of the brazing fixture.

[0027] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present invention, and these improvements and substitutions should also be considered within the scope of protection of the present invention.

Claims

1. A brazing fixture for a closed V-shaped angle structure of a divertor, characterized in that, The device includes two sets of symmetrically arranged clamping units. Each clamping unit includes an outer clamping plate and an inner clamping plate. The outer clamping plate and the inner clamping plate are arranged parallel to each other at intervals. The outer clamping plate and the inner clamping plate are connected by a first connecting assembly. A side brazing area for installing and clamping a side plate is formed between the outer clamping plate and the inner clamping plate. The upper ends of the outer clamping plates of the two sets of clamping units are connected by a second connecting assembly to form a positive brazing area for clamping the positive brazing surface. The outer clamping plate includes a clamping part and a fixing part, which are integrally formed. The clamping part is arranged parallel to the inner clamping plate at intervals, and the fixing part is arranged parallel to the fixing part of the outer clamping plate of another set of clamping units at intervals. The two fixing parts are connected by the second connecting component. The outer clamping plate also includes reinforcing ribs, which connect the fixing part and the clamping part.

2. The brazing fixture for a closed V-shaped angle structure of a divertor according to claim 1, characterized in that, A pressure plate is installed at the end of the outer clamping plate away from the positive brazing area, and a clamping screw for pushing the side plate to move is installed on the pressure plate.

3. The brazing fixture for a closed V-shaped angle structure of a divertor according to claim 1, characterized in that, Both the first connecting assembly and the second connecting assembly include a lead screw and a nut. The lead screw has external threads on its outer circumferential surface near both ends, and the nut is installed on the lead screw through the external threads.

4. The brazing fixture for a closed V-shaped angle structure of a divertor according to claim 1, characterized in that, A tie rod is installed at the end of each of the two outer clamps away from the positive brazing area.

5. The brazing fixture for a closed V-shaped angle structure of a divertor according to claim 1, characterized in that, The outer clamping plate has through holes for the water inlet and outlet pipes to extend out.

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