Multi-focal array source x-ray tube anode arrangement

Abstract

The utility model relates to ray tube technical field especially relates to a kind of multi-focal array source X ray tube anode device. Including: anode target disc, target disc fixed column, two oil circuit columns, anode base plate and two bellow;Two one end of the oil circuit column is fixed in the both ends of the anode target disc respectively, and the other end of two oil circuit column is connected with bellow respectively, and two bellow is embedded in the both ends of the anode base plate respectively, and the one end of the target disc fixed column is fixed in the middle part of the anode target disc, and the one end of the target disc fixed column is fixed in the middle part of the anode base plate;The inside of the anode target disc is provided with target disc oil circuit, and the inside of two oil circuit columns is provided with cooling oil circuit respectively, and the both ends of the target disc oil circuit are communicated with the cooling oil circuit of two oil circuit columns respectively.The utility model can effectively reduce the temperature when anode target disc works, and the structure is reliable, and assembly difficulty is low.

Description

Technical Field

[0001] This utility model relates to the field of X-ray tube technology, and in particular to a multifocal array source X-ray tube anode device. Background Technology

[0002] In industrial nondestructive testing fields, such as 3D computed tomography (CT), the performance requirements for X-ray sources are increasingly demanding. Traditional single-focus X-ray tubes have limitations in high-speed, large-field-of-view, or dynamic real-time imaging, exhibiting low detection efficiency and concentrated heat load at a single point. To address these limitations, multi-focus array source X-ray tube technology has emerged. This technology integrates multiple independently controllable cathode-anode pairs within a single vacuum tube, forming an array-type emission unit. Rapid switching of the electron beam enables multi-angle scanning without mechanical movement, effectively improving imaging speed and dispersing heat load. However, existing array source technologies still have room for improvement in high-density integration, focus consistency, and control reliability, hindering further performance optimization.

[0003] In scenarios involving long-term continuous operation of industrial X-ray tubes, heat dissipation is a critical challenge. When an electron beam continuously bombards the anode target, most of its kinetic energy is converted into heat, causing a rapid increase in the target's temperature. If this heat cannot be dissipated effectively and promptly, it will lead to an accumulation of thermal load on the anode target, potentially causing localized overheating, thermal stress concentration, or even melting or cracking of the target surface, ultimately resulting in permanent damage to the equipment. Furthermore, high temperatures can cause the anode target material (such as tungsten) to recrystallize and become embrittled, and may induce unnecessary thermionic emission, reducing imaging quality and equipment reliability, severely limiting the equipment's continuous operating time and lifespan. Summary of the Invention

[0004] This invention provides an anode device for a multi-focus array source X-ray tube, which solves the problem of target disk heat dissipation under continuous operation of industrial X-ray tubes.

[0005] The technical solution of this utility model is as follows: A multi-focus array source X-ray tube anode device, comprising: an anode target disk, a target disk fixing column, two oil circuit columns, an anode base plate, and two corrugated pipes; One end of each of the two oil passages is fixed to both ends of the anode target plate, and the other end of each of the two oil passages is connected to a bellows. The two bellows are embedded into both ends of the anode base plate. One end of the target plate fixing post is fixed to the middle of the anode target plate, and the other end of the target plate fixing post is fixed to the middle of the anode base plate. The anode target disk is provided with a target disk oil passage inside, and the two oil passage columns are respectively provided with cooling oil passages inside. The two ends of the target disk oil passage are respectively connected to the cooling oil passages of the two oil passage columns.

[0006] Furthermore, the anode target disk includes: a target disk body, a target surface, a plug, and an oil circuit connector. The target disk oil passage is located inside the target disk body, the plug is located at both ends of the target disk oil passage, the target surface is evenly distributed on one side of the target disk body, and the oil passage connector is located on the other side of the target disk body.

[0007] Furthermore, the target plate fixing post includes: a target plate connecting flange, a sleeve, and an anode ceramic; The target plate connecting flange is located at the top of the sleeve, the bottom of the sleeve is connected to the anode ceramic, and the sleeve is provided with an anode connecting assembly inside.

[0008] Furthermore, a first shielding ring is fitted at the connection between the sleeve and the anode ceramic.

[0009] Furthermore, a first ring is provided at the bottom of the anode ceramic.

[0010] Furthermore, the anode connection assembly includes: a lead rod, a core ceramic, an anode plug, and a sleeve. The core ceramic is fixed to the inner wall of the sleeve, the lead rod passes through the core ceramic, the bottom of the lead rod is connected to the anode plug, and the sleeve is fitted onto the lead rod and connected to the core ceramic.

[0011] Furthermore, a nut is provided on the other side of the target disk body, and a positioning hole corresponding to the nut is opened on the target disk connecting flange, and a screw is threadedly connected to the nut through the positioning hole.

[0012] Furthermore, the oil passage includes: a second ring, a second shielding ring, an oil passage ceramic, and a third ring; The second ring is disposed at the top of the oil circuit ceramic, and a second shielding ring is sleeved at the connection between the second ring and the oil circuit ceramic. The third ring is connected to the bottom of the oil circuit ceramic.

[0013] Furthermore, the bellows includes a bellows connecting flange and a bellows straight pipe, the top of the bellows connecting flange is connected to the third sleeve ring, and the top of the bellows straight pipe is connected to the bellows connecting flange.

[0014] Furthermore, the anode base plate includes: an anode cover plate, a corrugated pipe connecting sleeve, and a third shielding ring. The anode cover plate is provided with corrugated pipe connecting sleeves at both ends, and the corrugated pipe is disposed in the corrugated pipe connecting sleeve. A third shielding ring is provided at the connection between the bottom end of the target plate fixing column and the anode cover plate.

[0015] The beneficial effects of this invention are as follows: By setting channels for cooling oil to pass through the oil passage column and the anode target plate, and connecting an external oil cooler to cool the anode target plate during operation, this invention can effectively reduce the temperature of the anode target plate during operation. It also features a reliable structure and low assembly difficulty. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model.

[0017] Figure 2 This is a cross-sectional schematic diagram of the present invention.

[0018] Figure 3 This is a cross-sectional schematic diagram of the anode target disk in this utility model.

[0019] Figure 4 This is a cross-sectional view of the target plate fixing column in this utility model.

[0020] Figure 5 This is a partial enlarged view of the target plate fixing column in this utility model.

[0021] Figure 6 This is a cross-sectional view of the oil pipeline pillar and corrugated pipe in this utility model.

[0022] Figure 7 This is a schematic diagram of the anode base plate in this utility model.

[0023] Figure 8 This is a cross-sectional view of the anode base plate in this utility model. Detailed Implementation

[0024] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. The described embodiments are merely some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0025] In the technical solution of this utility model, Figure 1 and Figure 2 This is a schematic diagram illustrating the specific structure of a multifocal array source X-ray tube anode device according to this utility model, as shown below. Figure 1 As shown, this utility model includes: an anode target plate 100, a target plate fixing column 200, two oil passage columns 300, an anode base plate 400, and two corrugated pipes 500.

[0026] One end of each of the two oil passages 300 is fixed to one end of the anode target plate 100, and the other end of each of the two oil passages 300 is connected to a bellows 500. The two bellows are embedded into one end of the anode base plate 400. One end of the target plate fixing post 200 is fixed to the middle of the anode target plate 100, and the other end of the target plate fixing post 200 is fixed to the middle of the anode base plate 400.

[0027] The anode target disk 100 is provided with a target disk oil passage inside, and the two oil passage columns 300 are respectively provided with cooling oil passages inside. The two ends of the target disk oil passage are respectively connected to the cooling oil passages of the two oil passage columns 300.

[0028] In an embodiment of this utility model, the anode target disk 100 includes: a target disk body 101, a target surface 102, a plug 103, and an oil circuit connector 104. The target disk oil circuit is disposed inside the target disk body 101, the plug 103 is disposed at both ends of the target disk oil circuit, the target surface 102 is evenly distributed on one side of the target disk body 101, and the oil circuit connector 104 is disposed on the other side of the target disk body 101.

[0029] In an embodiment of this utility model, the target plate fixing column 200 includes: a target plate connecting flange 201, a sleeve 202, and an anode ceramic 204.

[0030] The target plate connecting flange 201 is located at the top of the sleeve 202, the bottom end of the sleeve 202 is connected to the anode ceramic 204, and the sleeve 202 is provided with an anode connecting assembly inside.

[0031] In an embodiment of this utility model, a first shielding ring 203 is provided at the connection between the sleeve 202 and the anode ceramic 204.

[0032] In an embodiment of this utility model, a first collar 205 is provided at the bottom of the anode ceramic 204.

[0033] In an embodiment of this utility model, the anode connection assembly includes: a lead rod 206, a core ceramic 207, an anode plug 208, and a sleeve 209. The core ceramic 207 is fixed on the inner wall of the sleeve 202. The lead rod 206 passes through the core ceramic 207. The bottom of the lead rod 206 is connected to the anode plug 208. The sleeve 209 is sleeved on the lead rod 206 and connected to the core ceramic 207.

[0034] In an embodiment of this utility model, a nut 105 is provided on the other side of the target disk body 101, and a positioning hole corresponding to the nut 105 is provided on the target disk connecting flange 201, and a screw is threadedly connected to the nut 105 through the positioning hole.

[0035] In an embodiment of this utility model, the oil passage column 300 includes: a second collar 301, a second shielding ring 302, an oil passage ceramic 303, and a third collar 304.

[0036] The second sleeve ring 301 is disposed at the top of the oil circuit ceramic 303, and a second shielding ring 302 is sleeved at the connection between the second sleeve ring 301 and the oil circuit ceramic 303. The third sleeve ring 304 is connected to the bottom of the oil circuit ceramic 303.

[0037] In an embodiment of this utility model, the corrugated pipe 500 includes a corrugated pipe connecting flange 501 and a corrugated straight pipe 502. The top of the corrugated pipe connecting flange 501 is connected to the third sleeve ring 304, and the top of the corrugated straight pipe 502 is connected to the corrugated pipe connecting flange 501.

[0038] In an embodiment of this utility model, the anode base plate 400 includes: an anode cover plate 401, a corrugated pipe connecting sleeve 402, and a third shielding ring 403.

[0039] The anode cover plate 401 is provided with corrugated pipe connecting sleeves 402 at both ends, the corrugated pipe 500 is disposed in the corrugated pipe connecting sleeves 402, and a third shielding ring 403 is provided at the connection between the bottom end of the target plate fixing column 200 and the anode cover plate 401.

[0040] In this utility model: One end of the oil passage column 300 is connected to the anode target plate 100 by TIG welding, and the other end is connected to the bellows 500 by TIG welding. After welding, the oil passage column 300, the bellows 500, and the anode target plate 100 form a whole, with a cooling oil passage inside. The cooling oil passage cools the anode target plate 100 during operation by connecting to an external oil cooler.

[0041] The target plate fixing column 200 is connected to the anode target plate 100 by screws to provide fixed support.

[0042] The target plate fixing column 200 is externally connected to the X-ray tube anode, providing anode high voltage to the anode target plate.

[0043] The other end of the bellows 500 and the other end of the target plate fixing column 200 are connected to the anode base plate 400 by TIG welding to form the entire anode device.

[0044] The anode target plate 100 structure includes: a target plate body 101, a target surface 102, a plug 103, an oil passage connector 104, and a nut 105. The target plate body 101 is machined from pure copper, and an internally threaded hole is drilled through the center to increase the heat exchange area. Both ends are connected to the plug 103 by vacuum brazing. Several devices 102 are fixed to the upper surface of the target plate body 101 by vacuum brazing. Devices 102 are machined from pure tungsten or tungsten alloy and pure copper by casting, and their working surfaces are made of pure tungsten or tungsten alloy. The target plate body 101, oil passage connector 104, and nut 105 are connected as a single unit by vacuum brazing.

[0045] The target plate fixing post 200 structure includes a target plate connecting flange 201, a sleeve 202, a shielding ring 203, an anode ceramic 204, and a collar 205. The anode connection assembly includes a lead rod 206, a core ceramic post 207, an anode plug 208, and a sleeve 209.

[0046] The two ends of the anode ceramic 204 are connected to the first collar 205 of the sleeve 202 by vacuum brazing, and one end of the sleeve 202 is connected to the one end of the target plate connecting flange 201 by TIG welding.

[0047] The inner wall of the sleeve 202 is connected to the core ceramic 207 by vacuum brazing. The core ceramic 207 has a through hole. The lead rod 206 passes through the hole and is fixed together with the sleeve 209 and the core ceramic 207 by vacuum brazing.

[0048] The anode plug 208 is connected to the lead rod 206 by threads.

[0049] The lead rod 206 is connected to the inner wall of the sleeve 202 by TIG welding, forming a conductive path from the target plate connecting flange 201 to the anode plug 208.

[0050] To protect the three-phase point at the ceramic weld from the effects of concentrated electric field intensity, the first shielding ring 203 is laser-welded to the outer wall of the sleeve 202.

[0051] The oil passage column 300 includes a second set of rings 301, a shielding ring 302, an oil passage ceramic ring 303, and a third set of rings 304.

[0052] The bellows 500 includes a bellows connection flange 501 and a bellows straight pipe 502.

[0053] The two ends of the oil circuit ceramic 303 are connected to the second ring 301 and the third ring 304 by vacuum brazing. In order to protect the three-phase point at the ceramic weld from the influence of electric field intensity concentration, the second shielding ring 302 is laser welded to the outer wall of the second ring 301.

[0054] The oil circuit ceramic 303 has a through hole in the middle, and the inner wall of the through hole is glazed to reduce the flow resistance of the cooling oil.

[0055] After one end of the corrugated straight pipe 502 is welded to the corrugated pipe connecting flange 501 by TIG welding, the outer wall of the corrugated pipe connecting flange 501 and the inner wall of the third ring 304 are welded together by TIG welding.

[0056] The anode base plate 400 includes an anode cover plate (401), a bellows connecting sleeve (402), and a shielding ring (403), which are welded together by TIG welding.

[0057] To protect the three-phase point at the ceramic weld joint of the target plate fixing post 200 from the influence of concentrated electric field intensity, the third shielding ring 403 is welded to the anode cover plate 401 by TIG welding.

[0058] Finally, it should be noted that the above specific embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although this utility model has been described in detail with reference to examples, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A multifocal array source X-ray tube anode device, characterized in that, include: Anode target plate (100), target plate fixing column (200), two oil passage columns (300), anode base plate (400) and two bellows (500); One end of each of the two oil passages (300) is fixed to both ends of the anode target plate (100), and the other end of each of the two oil passages (300) is connected to a bellows (500). The two bellows are embedded into both ends of the anode base plate (400). One end of the target plate fixing post (200) is fixed to the middle of the anode target plate (100), and the other end of the target plate fixing post (200) is fixed to the middle of the anode base plate (400). The anode target disk (100) is provided with a target disk oil passage inside, and the two oil passage columns (300) are respectively provided with cooling oil passages inside. The two ends of the target disk oil passage are respectively connected to the cooling oil passages of the two oil passage columns (300).

2. The multifocal array source X-ray tube anode device as described in claim 1, characterized in that, The anode target disk (100) includes: target disk body (101), target surface (102), plug (103), and oil circuit connector (104). The target disk oil circuit is located inside the target disk body (101), the plug (103) is located at both ends of the target disk oil circuit, the target surface (102) is evenly distributed on one side of the target disk body (101), and the oil circuit connector (104) is located on the other side of the target disk body (101).

3. The multifocal array source X-ray tube anode device as described in claim 2, characterized in that, The target plate fixing column (200) includes: target plate connecting flange (201), sleeve (202), and anode ceramic (204); The target plate connecting flange (201) is located at the top of the sleeve (202), the bottom end of the sleeve (202) is connected to the anode ceramic (204), and the sleeve (202) is provided with an anode connection assembly inside.

4. The multifocal array source X-ray tube anode device as described in claim 3, characterized in that, A first shielding ring (203) is fitted at the connection between the sleeve (202) and the anode ceramic (204).

5. The multifocal array source X-ray tube anode device as described in claim 3, characterized in that, The bottom of the anode ceramic (204) is provided with a first collar (205).

6. The multifocal array source X-ray tube anode device as described in claim 3, characterized in that, The anode connection assembly includes: a lead rod (206), a core ceramic (207), an anode plug (208), and a sleeve (209). The core ceramic (207) is fixed on the inner wall of the sleeve (202). The lead rod (206) passes through the core ceramic (207). The bottom of the lead rod (206) is connected to the anode plug (208). The sleeve (209) is sleeved on the lead rod (206) and connected to the core ceramic (207).

7. The multifocal array source X-ray tube anode device as described in claim 3, characterized in that, A nut (105) is provided on the other side of the target plate body (101). The target plate connecting flange (201) has a positioning hole corresponding to the nut (105). A screw passes through the positioning hole and is threadedly connected to the nut (105).

8. The multifocal array source X-ray tube anode device as described in claim 1, characterized in that, The oil passage column (300) includes: a second collar (301), a second shielding ring (302), an oil passage ceramic (303), and a third collar (304); The second ring (301) is disposed at the top of the oil circuit ceramic (303), and a second shielding ring (302) is sleeved at the connection between the second ring (301) and the oil circuit ceramic (303). The third ring (304) is connected to the bottom of the oil circuit ceramic (303).

9. The multifocal array source X-ray tube anode device as described in claim 8, characterized in that, The corrugated pipe (500) includes a corrugated pipe connecting flange (501) and a corrugated straight pipe (502). The top of the corrugated pipe connecting flange (501) is connected to the third sleeve ring (304), and the top of the corrugated straight pipe (502) is connected to the corrugated pipe connecting flange (501).

10. The multifocal array source X-ray tube anode device as described in claim 1, characterized in that, The anode base plate (400) includes: an anode cover plate (401), a corrugated pipe connecting sleeve (402), and a third shielding ring (403). The anode cover plate (401) is provided with corrugated pipe connecting sleeves (402) at both ends, and the corrugated pipe (500) is provided inside the corrugated pipe connecting sleeves (402). A third shielding ring (403) is provided at the connection between the bottom end of the target plate fixing column (200) and the anode cover plate (401).

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