A beryllium window switching device applied to the end of a beamline station

Abstract

The application discloses a beryllium window switching device applied to the end of a beam line station, characterized in that the device comprises a water-cooled beryllium window, a beryllium window lifting support unit, a connecting pipeline and a bellows; the water-cooled beryllium window is connected with an upstream port of the connecting pipeline; both sides of the upstream port of the connecting pipeline are slidably connected with the beryllium window lifting support unit, the height of the connecting pipeline is adjusted through the beryllium window lifting support unit, and then the water-cooled beryllium window receives different beam outflows; and a downstream port of the connecting pipeline is connected with the bellows. The beryllium window position can be switched without destroying the vacuum environment, the vacuum extraction time is reduced, the machine time is improved, only one flange interface is used, one or more beryllium windows can be connected, various experimental modes are met, and the use cost is reduced.

Description

Technical Field

[0001] This invention belongs to the field of synchrotron radiation technology and relates to a beryllium window switching device applied at the end of a beamline station. It is used in a high-energy synchrotron radiation source beamline station and operates in an ultra-high vacuum environment. Background Technology

[0002] The High Energy Synchrotron Radiation Facility (HERF) is my country's first fourth-generation light source. The first phase of the project included 14 beamlines, most of which utilize multiple inserts in series to achieve various experimental modes. These modes differ in beam size, energy, and other parameters, and some beamlines also employ different beam heights. Traditional light sources typically use fixed beam heights, limiting experimental modes, and can be handled by support pipes to manage vacuum pull. Different beam heights could be addressed by using larger beryllium windows, whose range directly covers the switching between multiple modes. However, the thickness of the same beryllium window is often insufficient for diverse experimental requirements. Using two different beryllium windows and replacing them each time under vacuum conditions necessitates re-evacuating the vacuum environment after reinstallation, resulting in significant wasted machine time.

[0003] Currently, the traditional solution for switching modes at different output heights is to use a beryllium window that can cover all mode sizes. However, this solution cannot meet design requirements. For example, in white light mode, thermal deformation is large, requiring a thicker beryllium window; in monochromatic light mode, better penetration requires a thinner beryllium plate. Therefore, using the same beryllium plate is not sufficient when different energy modes are needed. Furthermore, using a large-size beryllium plate increases operating costs. If two sets of beryllium windows are used for replacement, a vacuum breaking operation is required each time. Replacing the beryllium window requires re-evacuating to an ultra-high vacuum environment, which wastes machine time and significantly reduces the beryllium window's lifespan due to frequent exposure to the atmosphere. Summary of the Invention

[0004] To address the problems existing in the prior art, the purpose of this invention is to provide a beryllium window switching device for use at the end of a beamline station, applicable to high-energy synchrotron radiation source beamline stations and in ultra-high vacuum environments.

[0005] The beryllium window switching device of this invention mainly includes a water-cooled beryllium window assembly, a beryllium window lifting support, and a corrugated pipe connection. By adding a lifting support, connecting pipe, and corrugated pipe to the water-cooled beryllium window, the lifting support mechanism enables switching between different beryllium windows or beam heights. The beryllium window connecting backplate isolates the vacuum while resisting vacuum pull, and the lifting of the bottom displacement stage switches the beryllium window position, allowing for multiple experimental modes to be performed without disrupting the vacuum. This invention enables beryllium window position switching without damaging the vacuum, reducing vacuum extraction time and increasing operating time. It uses only one flange interface to connect one or more beryllium windows, thus meeting various experimental modes and reducing operating costs.

[0006] The technical solution of this invention is as follows: A beryllium window switching device applied at the end of a beamline station, characterized in that it includes a water-cooled beryllium window 1, a beryllium window lifting support unit 2, a connecting pipe 3, and a corrugated pipe 4; The water-cooled beryllium window 1 is connected to the upstream port of the connecting pipe 3; The upstream ports of the connecting pipe 3 are slidably connected to the beryllium window lifting support unit 2 on both sides, and are used to adjust the height of the connecting pipe 3 through the beryllium window lifting support unit 2, thereby driving the water-cooled beryllium window 1 to receive different beam output heights; The downstream port of the connecting pipe 3 is connected to the corrugated pipe 4.

[0007] Preferably, the beryllium window lifting support unit 2 includes an upper connecting support structure 21, a bracket 22, a lifting slide 23, and a slide fixing plate 24; the upper connecting support structure 21 is installed on the lifting slide 23, the lifting slide 23 is fixed on the slide fixing plate 24, and the slide fixing plate 24 is installed on the bracket 22 by a long screw, and the height of the lifting slide 23 is adjusted by the long screw.

[0008] Preferably, the upper connecting support structure 21 includes a back plate 201, a hard limiting block 202, a slide rail 203, a slider 204, a soft limiting block 205, a rib plate 206, and a reinforcing plate 207; the back plate 201 has a U-shaped structure, and each side wall of the back plate 201 has an upstream mounting groove for mounting a slide rail 203; each slide rail 203 has a slider 204; the top of each of the two slide rails 203 is provided with a hard limiting block 202; a plurality of soft limiting blocks 205 are provided on the outer side of each slide rail 203; each side wall of the back plate 201 has a rib plate 206 and a reinforcing plate 207 on the downstream side.

[0009] Preferably, the rib plate 206 and the reinforcing plate 207 are assembled and installed to the downstream side of the side wall of the back plate 201 by bolts through the connecting holes on the side wall of the back plate 201.

[0010] Preferably, the water-cooled beryllium window 1 includes a fixed flange 102, a copper absorber 103, a loose flange 104, and a beryllium plate 105; the copper absorber 103 is provided with a through hole for receiving the beamline, and the beryllium plate 105 is installed in the through hole; the upstream end of the copper absorber 103 is provided with a loose flange 104, and the downstream end is provided with a fixed flange 102; the fixed flange 102 is used to connect to the connecting pipe 3, and the loose flange 104 is located on the atmospheric side at the end of the beamline station and is used to connect to upstream equipment.

[0011] Preferably, the connecting pipe 3 includes an extension plate 301, a lower weight-reducing support plate 302, an upper connecting plate 303 on the slide platform, a flange 304, and a pipe 305; an extension plate 301 is horizontally connected to each side of the pipe 305; the lower weight-reducing support plate 302 is connected to the pipe 305 and is perpendicular to the extension plate 301; the flange 304 is connected to the upstream end of the pipe 305 and is sealed to the fixed flange 102; the lower weight-reducing support plate 302 is installed on the upper connecting plate 303 on the slide platform; the upper connecting plate 303 on the slide platform is connected to the lifting slide platform 23; and each extension plate 301 is connected to a slider 204.

[0012] Preferably, the corrugated pipe 4 includes a connecting flange 401, a connecting pipe 402, and a lever 403; one end of the connecting pipe 402 is connected to the lever 403, and the other end is connected to the connecting flange 401; the connecting flange 401 is used to connect to the downstream end of the connecting pipe 3.

[0013] The present invention has the following main aspects: First, the beryllium window switching device in this invention achieves switching between different positions through lifting and lowering, allowing for the replacement of multiple beryllium windows of different thicknesses and reducing usage costs.

[0014] Secondly, the lifting mechanism is used for switching between different positions, which reduces the vacuum extraction time caused by using multiple window switching and avoids wasting machine time. Attached Figure Description

[0015] Figure 1 This is a structural diagram of the beryllium window switching device of the present invention.

[0016] Figure 2 This is a structural diagram of a water-cooled beryllium window; (a) Front view of the water-cooled beryllium window, (b) Cross-sectional view of the water-cooled beryllium window.

[0017] Figure 3 This is a structural diagram of the beryllium window lifting support unit.

[0018] Figure 4 This is a schematic diagram of the upper connecting support structure; (a) Front view of the upper connecting support structure, (b) Cross-sectional view of the upper connecting support structure.

[0019] Figure 5 This is a diagram of the support structure.

[0020] Figure 6 Diagram of the slide table fixing plate.

[0021] Figure 7 Diagram of connecting pipe structure; (a) Front view of the connecting pipe, (b) Cross-sectional view of the connecting pipe.

[0022] Figure 8 This is a structural diagram of a bellows. Detailed Implementation

[0023] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

[0024] like Figure 1 The diagram shows a beryllium window switching device at the end of a beamline station according to the present invention, which mainly includes a water-cooled beryllium window 1, a beryllium window lifting support unit 2, a connecting pipe 3 and a corrugated pipe 4. The water-cooled beryllium window 1, the beryllium window lifting support unit 2, the connecting pipe 3 and the corrugated pipe 4 are connected by bolts.

[0025] like Figure 2 As shown, the water-cooled beryllium window 1 mainly consists of a cooling copper pipe 101, a fixed flange 102, a copper absorber 103, a loose flange 104, and a beryllium plate 105. First, the beryllium plate 105 and the copper absorber 103 are brazed. Then, the welded assembly, the loose flange 104, and the fixed flange 102 are connected by electron beam welding to form the entire water-cooled beryllium window assembly. After the water-cooled beryllium window welding is completed, one side of the fixed flange 102 is bolted to the beryllium window lifting support unit 2, while the loose flange 104 side is located at the atmospheric end of the beamline station, with the beryllium plate 105 bearing positive pressure.

[0026] like Figure 3 As shown, the beryllium window lifting support unit 2 mainly consists of an upper connecting support structure 21, a bracket 22, a lifting slide 23, and a slide fixing plate 24. The upper connecting support structure 21 and the bracket 22 are fixedly connected by bolts on the lower side. The bracket 22 and the slide fixing plate 24 are fixed by a long screw, which has the function of adjusting the height. The lifting slide 23 and the slide fixing plate 24 are fixedly connected by bolts.

[0027] like Figure 4As shown, the upper connecting support structure 21 mainly consists of a back plate 201, hard limiting blocks 202, slide rails 203, sliders 204, soft limiting blocks 205, ribs 206, and reinforcing plates 207. The back plate 201 has a U-shaped structure. The back plate 201, four hard limiting blocks 202, two slide rails 203, two soft limiting blocks 205, two ribs 206, and reinforcing plates 207 are connected by bolts. In actual installation, first, one slide rail 203 is installed into the mounting groove on one side wall of the back plate 201. The slide rail 203 on the other side is then adjusted to be parallel to the previously installed guide rail 203. Finally, the slider 204 is installed into the slide rail 203. Then, the rib plate 206 and the reinforcing plate 207 are spliced ​​together. Bolts are inserted through the connecting holes in the back plate 201 to assemble the rib plate 206 and the reinforcing plate 207. The rib plate 206 and reinforcing plate 207 on the other side are then installed, ensuring the rib plate is flush with the previously installed side. Finally, the soft limiter 205 is installed into the corresponding hole in the back plate 201, completing the installation of the entire upper connecting support structure 21. The upper connecting support structure 21 primarily enables the beryllium window to move up and down, while also bearing vacuum tension through the rib plates, reinforcing plates, and back plate.

[0028] like Figure 5 As shown, the bracket 22 mainly consists of a welded plate 208, horizontal square steel 209, horizontal connecting square steel 210 for the sliding table, and vertical square steel 211. The four parts—welded plate 208, horizontal square steel 209, horizontal connecting square steel 210 for the sliding table, and vertical square steel 211—are connected by argon arc welding. First, two horizontal square steels 209 and four vertical square steels 211 are welded together, ensuring the four square steels 211 are horizontal. Then, two horizontal connecting square steels 210 for the sliding table are welded to the vertical square steels 211 at the designed distance. Finally, two welded plates 208 and horizontal square steels 209 are welded together to complete the welding of the entire bracket. In actual installation, the welded plate is connected to the upper connecting support structure 21 by bolts, and the lower side of the bracket 22 is fixed to the ground by expansion bolts.

[0029] like Figure 6 As shown, the slide table fixing plate 24 consists of a bottom locking nut 212, an upper locking nut 213, a spherical washer 214, a spherical washer 215, a slide table support plate 216, and a long screw 217. In actual installation, the standard slide table 23 is first installed onto the slide table support plate 216 according to the fixing hole positions and fixed with bolts. Then, the long screw 217 is inserted into the hole of the horizontal connecting square steel 210, and the bottom locking nut 212 is tightened. After installing the spherical washer 214, spherical washer 215, and locking nut 213, the slide table support plate 216 is installed, and then the upper spherical washer, spherical washer, and locking nut are installed. The upper and lower sides are tightened in opposite directions to complete the installation of the entire beryllium window lifting support unit 2.

[0030] like Figure 7As shown, the connecting pipe 3 mainly consists of an extension plate 301, a lower weight-reducing support plate 302, an upper connecting plate 303 on the slide, a flange 304, and a pipe 305. In actual processing, an extension plate 301 is welded to each side of the pipe 305. First, the extension plates 301 are welded to the pipe 305, ensuring parallelism on both sides. Then, the lower weight-reducing support plate 302 is argon-arc welded to the pipe 305, ensuring the extension plates 301 and 302 are perpendicular. Next, the flange 304 is argon-arc welded to the pipe 305, and the flange 304 is sealed to the fixed flange 102 of the water-cooled beryllium window 1. Finally, the upper connecting plate 303 and the lower weight-reducing support plate 302 are welded together to complete the processing of the entire connecting pipe. The upper connecting plate 303 on the lower side of the connecting pipe 3 is bolted to the lifting slide 23, and the upper extension plate 301 is bolted into the corresponding holes of the slider 204.

[0031] like Figure 8 As shown, the bellows 4 mainly consists of a connecting flange 401, a connecting pipe 402, and a lever 403. In actual processing, the connecting pipe 402 and the lever 403 are first welded together by electron beam welding, and finally the connecting flange 401 and the connecting pipe 402 are argon arc welded together. One side of the bellows 4 is bolted to the connecting pipe 3, and the other side is bolted to the upstream equipment of the beamline station. The bellows 4 is used to realize the lateral displacement function.

[0032] This invention enables window switching without disrupting a vacuum environment; for example, in the presence of white light and monochromatic light modes, two light outlets can be opened on the window, each fitted with a beryllium window of different thickness. By switching the window positions, the beryllium windows of different thicknesses can receive light beams at corresponding light output heights.

[0033] The above are preferred embodiments of the present invention. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A beryllium window switching device applied at the end of a beamline station, characterized in that, Includes a water-cooled beryllium window (1), a beryllium window lifting support unit (2), connecting pipes (3) and corrugated pipes (4); The water-cooled beryllium window (1) is connected to the upstream port of the connecting pipe (3); The upstream ports of the connecting pipe (3) are slidably connected to the beryllium window lifting support unit (2) on both sides, and are used to adjust the height of the connecting pipe (3) through the beryllium window lifting support unit (2), thereby driving the water-cooled beryllium window (1) to receive different beam output heights; The downstream port of the connecting pipe (3) is connected to the corrugated pipe (4).

2. The beryllium window switching device according to claim 1, characterized in that, The beryllium window lifting support unit (2) includes an upper connecting support structure (21), a bracket (22), a lifting slide (23), and a slide fixing plate (24); the upper connecting support structure (21) is installed on the lifting slide (23), the lifting slide (23) is fixed on the slide fixing plate (24), the slide fixing plate (24) is installed on the bracket (22) by a long screw, and the height of the lifting slide (23) is adjusted by the long screw.

3. The beryllium window switching device according to claim 2, characterized in that, The upper connecting support structure (21) includes a back plate (201), a hard limiting block (202), a slide rail (203), a slider (204), a soft limiting block (205), a rib plate (206), and a reinforcing plate (207). The back plate (201) has a U-shaped structure. Each side wall of the back plate (201) has an upstream mounting groove for mounting a slide rail (203). Each slide rail (203) has a slider (204). The top of each of the two slide rails (203) has a hard limiting block (202). A number of soft limiting blocks (205) are provided on the outer side of each slide rail (203). Each side wall of the back plate (201) has a rib plate (206) and a reinforcing plate (207) on its downstream side.

4. The beryllium window switching device according to claim 3, characterized in that, The rib (206) and reinforcing plate (207) are assembled and installed to the downstream side of the side wall of the back plate (201) by bolts through the connecting holes on the side wall of the back plate (201).

5. The beryllium window switching device according to claim 2, characterized in that, The water-cooled beryllium window (1) includes a fixed flange (102), a copper absorber (103), a loose flange (104), and a beryllium plate (105). The copper absorber (103) has a through hole for receiving the beamline, and the beryllium plate (105) is installed in the through hole. The upstream end of the copper absorber (103) is provided with a loose flange (104), and the downstream end is provided with a fixed flange (102). The fixed flange (102) is used to connect to the connecting pipe (3), and the loose flange (104) is located on the atmospheric side at the end of the beamline station and is used to connect to the upstream equipment.

6. The beryllium window switching device according to claim 5, characterized in that, The connecting pipe (3) includes an extension plate (301), a lower weight-reducing support plate (302), an upper connecting plate (303) on the slide, a flange (304), and a pipe (305); the two sides of the pipe (305) are respectively horizontally connected to an extension plate (301); the lower weight-reducing support plate (302) is connected to the pipe (305) and is perpendicular to the extension plate (301); the flange (304) is connected to the upstream end of the pipe (305); the flange (304) is sealed to the fixed flange (102); the lower weight-reducing support plate (302) is installed on the upper connecting plate (303) on the slide; the upper connecting plate (303) on the slide is connected to the lifting slide (23); each extension plate (301) is connected to a slider (204).

7. The beryllium window switching device according to claim 1, characterized in that, The corrugated pipe (4) includes a connecting flange (401), a connecting pipe (402), and a lever (403); one end of the connecting pipe (402) is connected to the lever (403), and the other end is connected to the connecting flange (401); the connecting flange (401) is used to connect to the downstream end of the connecting pipe (3).

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