High-efficiency heat dissipation type X-ray tube

Abstract

The utility model relates to a kind of high-efficiency heat dissipation type X-ray tube, including outer tube shell, vacuum tube being located in outer tube shell, insulating oil and anode by vacuum tube one end extension, the end of anode target surface is equipped with cavity, oil inlet channel and oil outlet channel are set in anode, oil inlet channel and oil outlet channel one end are communicated with cavity, other end is communicated to the end surface of anode extension vacuum tube one end, oil outlet pipe is fixedly connected in oil outlet channel, outer tube shell is communicated with oil return pipe, outer tube shell outside is equipped with oil outlet pump, oil return pump and spiral coil pipe, oil outlet pump inlet is detachably connected with oil outlet pipe, outlet is fixedly connected with spiral coil pipe lower port, oil return pump inlet is fixedly connected with spiral coil pipe upper port, outlet is detachably connected with oil return pipe, spiral coil pipe front and back both sides are equipped with vertical plate, front vertical plate is embedded with a plurality of semiconductor refrigeration piece, rear vertical plate is embedded with a plurality of axial flow fan.The utility model can make insulating oil flow through anode interior and can effectively heat-exchange cooling to insulating oil, more practical.

Description

Technical Field

[0001] This utility model belongs to the field of X-ray tube technology, specifically relating to a high-efficiency heat dissipation X-ray tube. Background Technology

[0002] An X-ray tube is a vacuum diode operating at high voltage. It contains two electrodes: a filament that emits electrons (cathode) and a target that receives electron bombardment (anode). Both electrodes are sealed within a high-vacuum glass or ceramic tube and are used in medicine for diagnosis and treatment. In practical applications, when the anode of an X-ray tube is fixed, heat concentrates at the focal point, leading to localized overheating. Effective heat dissipation is necessary, but current methods often rely on insulating oil between the vacuum tube and the outer shell to absorb the heat. However, this method suffers from several drawbacks: the insulating oil does not flow through the anode's interior, resulting in poor heat absorption; and the absorbed heat cannot be dissipated quickly enough, leading to inadequate overall heat dissipation. This issue needs further investigation. Utility Model Content

[0003] In view of this, the purpose of this utility model is to provide a high-efficiency heat dissipation X-ray tube that allows insulating oil to flow through the inside of the anode and effectively exchange heat and cool the insulating oil, so as to solve the above problems.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a high-efficiency heat dissipation X-ray tube, comprising an outer shell, a vacuum tube disposed within the outer shell, insulating oil filling the space between the vacuum tube and the outer shell, and an anode fixed to one end of the vacuum tube and extending out of the vacuum tube. A cavity is formed at the target surface end of the anode. Several oil inlet channels and one oil outlet channel are formed axially within the anode. The oil inlet channels are circumferentially spaced around the oil outlet channel, and one end of both the oil inlet and outlet channels communicates with the cavity, while the other end connects to the end face of the anode extending out of the vacuum tube. An oil outlet pipe is fixedly connected to the oil outlet channel, extending out of the outer shell, and the outer shell is connected to... The device includes an oil return pipe with a return valve. An oil outlet pump, a return oil pump, and a spiral coil are provided on the outer side of the outer casing. The inlet of the oil outlet pump is detachably connected to the oil outlet pipe, and the outlet is fixedly connected to the lower port of the spiral coil. The inlet of the return oil pump is fixedly connected to the upper port of the spiral coil, and the outlet is detachably connected to the oil return pipe. Vertical plates are provided on both the front and rear sides of the spiral coil. Several semiconductor cooling chips are embedded in the front vertical plate, with the cooling surface of the semiconductor cooling chips facing the spiral coil and abutting against it. Several axial flow fans are embedded in the rear vertical plate, with the air outlet of the axial flow fans facing the spiral coil.

[0005] Preferably, both the inlet of the oil pump and the outlet of the return oil pump are fixedly connected to hoses, and the hoses are connected to the corresponding oil outlet pipe and return oil pipe through quick connectors.

[0006] Preferably, both vertical plates are fixed on a base, and brake-type omnidirectional wheels are installed at the four corners of the bottom of the base.

[0007] Preferably, the outer shell includes a housing, the left and right ends of the housing are open and bolted with end caps with sealing rings, the upper and lower sides of one end of the housing are fixedly provided with mounting plates, the outer side of the vacuum tube corresponding to the mounting plate is fixedly provided with fixing plates, the fixing plates abut against the corresponding mounting plates and are fixedly connected by bolts.

[0008] Preferably, a cathode is fixedly installed at the end of the vacuum tube away from the anode, and a filament is provided at the end of the cathode facing the target surface of the anode, and a focusing shroud is fitted on the outside of this end. A beryllium window is installed on the vacuum tube corresponding to the filament and the target surface of the anode. A radiation tube with a sealing ring is connected to the shell corresponding to the beryllium window, and the end of the radiation tube with the sealing ring abuts against the frame of the beryllium window.

[0009] Preferably, both end caps are provided with through holes containing sealing rings.

[0010] Preferably, the housing is connected to an oil injection pipe with an oil injection valve.

[0011] The beneficial effects of this invention are as follows: When the X-ray tube is working, the oil outlet pump and the oil return pump operate, thereby driving the insulating oil to flow in a forced manner. This allows the insulating oil to first flow through multiple oil inlet channels past the anode and collect in the cavity, effectively absorbing the heat generated at the target surface of the anode. Then, it flows out through the oil outlet channel and oil outlet pipe into the spiral coil, flowing upwards along the spiral coil. Simultaneously, the semiconductor cooling chip and the axial flow fan operate. On the one hand, the cooling surface of the semiconductor cooling chip generates cooling energy and transfers it to the spiral coil, which is in direct contact with the cooling surface, thus exchanging heat with the insulating oil flowing through the spiral coil. On the other hand, the axial flow fan blows air onto the spiral coil to dissipate heat. This, combined with the semiconductor cooling chip, greatly improves the heat exchange effect, allowing the insulating oil to cool down rapidly after absorbing heat. Driven by the oil return pump, it then flows back into the outer shell through the oil return pipe. This allows the insulating oil to flow through the interior of the anode and effectively exchange heat to cool it down, thereby greatly enhancing the heat dissipation effect on the anode and making the overall heat dissipation more efficient, of higher quality, and more practical. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the main structure of this utility model; Figure 2 This is a schematic diagram of the main structure of the outer shell of this utility model; Figure 3 This is a right-side structural schematic diagram of the outer shell of this utility model; Figure 4 This is a schematic diagram of the main structure of the anode of this utility model; Figure 5 This is a right-side structural schematic diagram of the spiral coil and vertical plate of this utility model.

[0013] The following labels are used in the diagram: 1 is the outer shell, 2 is the vacuum tube, 3 is the insulating oil, 4 is the anode, 5 is the cavity, 6 is the oil inlet channel, 7 is the oil outlet channel, 8 is the oil outlet pipe, 9 is the oil return valve, 10 is the oil return pipe, 11 is the oil outlet pump, 12 is the oil return pump, 13 is the spiral coil, 14 is the vertical plate, 15 is the semiconductor refrigeration chip, 16 is the axial flow fan, 17 is the flexible hose, 18 is the quick connector, 19 is the base, 20 is the brake-type caster wheel, 21 is the housing, 22 is the sealing ring, 23 is the end cap, 24 is the mounting plate, 25 is the fixing plate, 26 is the cathode, 27 is the filament, 28 is the spotter, 29 is the beryllium window, 30 is the radiation tube, 31 is the through hole, 32 is the oil injection valve, and 33 is the oil injection pipe. Detailed Implementation

[0014] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments: like Figures 1 to 5 As shown, a high-efficiency heat-dissipating X-ray tube includes an outer shell 1, a vacuum tube 2 disposed within the outer shell 1, insulating oil 3 filling the space between the vacuum tube 2 and the outer shell 1, and an anode 4 fixed to one end of the vacuum tube 2 and extending out of the vacuum tube 2. A cavity 5 is formed at the target surface end of the anode 4. Several oil inlet channels 6 and one oil outlet channel 7 are formed along the axial direction within the anode 4. The oil inlet channels 6 are circumferentially spaced around the oil outlet channel 7, and one end of both the oil inlet channels 6 and the oil outlet channel 7 communicates with the cavity 5, while the other end of both communicates with the end face of the anode 4 extending out of the vacuum tube 2. An oil outlet pipe 8 is fixedly connected to the oil outlet channel 7, extending out of the outer shell 1. An oil return pipe 10 equipped with a return valve 9 is connected to the outer shell 1. An oil outlet pump 11, a return oil pump 12, and a spiral coil 13 are provided on the outer side of the outer casing 1. The inlet of the oil outlet pump 11 is detachably connected to the oil outlet pipe 8, and the outlet is fixedly connected to the lower port of the spiral coil 13. The inlet of the return oil pump 12 is fixedly connected to the upper port of the spiral coil 13, and the outlet is detachably connected to the return oil pipe 10. Vertical plates 14 are provided on both the front and rear sides of the spiral coil 13. Several semiconductor cooling chips 15 are embedded on the front vertical plate 14, with the cooling surface of the semiconductor cooling chips 15 facing the spiral coil 13 and abutting against the spiral coil 13. Several axial flow fans 16 are embedded on the rear vertical plate 14, with the air outlet of the axial flow fans 16 facing the spiral coil 13. When the X-ray tube is working, the oil pump 11 and the return oil pump 12 operate, which forces the insulating oil 3 to flow. The insulating oil 3 first flows through multiple inlet channels 6, passes through the anode 4, and collects in the cavity 5, effectively absorbing the heat generated at the target surface of the anode 4. Then, it flows out through the outlet channel 7 and the outlet pipe 8 into the spiral coil 13, flowing upwards along the spiral coil 13. Simultaneously, the thermoelectric cooler 15 and the axial flow fan 16 operate. On one hand, the cooling surface of the thermoelectric cooler 15 generates cooling energy and transfers it to the spiral coil 13, which is in direct contact with the cooling surface, thus exchanging heat with the insulating oil 3 flowing through the spiral coil 13. On the other hand, the axial flow fan 16 blows air onto the spiral coil 13 to dissipate heat. Combined with the thermoelectric cooler 15, this greatly improves the heat exchange effect, allowing the heated insulating oil 3 to cool down rapidly. Driven by the return oil pump 12, it then flows back into the outer shell 1 through the return oil pipe 10. In this way, the insulating oil 3 can flow through the interior of the anode 4 and effectively exchange heat to cool it down, thereby greatly enhancing the heat dissipation effect on the anode 4 and making the overall heat dissipation more efficient, of higher quality, and more practical. The spiral coil 13 can be made of readily available materials with good thermal conductivity, such as copper. The semiconductor cooling chip 15 and the axial flow fan 16 can both utilize existing technologies.

[0015] In this embodiment, hoses 17 are fixedly connected to the inlet of the oil pump 11 and the outlet of the return pump 12. The hoses 17 are connected to the corresponding oil outlet pipe 8 and return pipe 10 through quick connectors 18, so that the oil pump 11 and the oil outlet pipe 8, and the return pump 12 and the return pipe 10 can be quickly connected and disconnected. In actual use, the entire X-ray tube can be flexibly connected and disassembled with external equipment such as the oil pump 11 and the return pump 12, making it more flexible, convenient and practical.

[0016] In this embodiment, both vertical plates 14 are fixed on a base 19, and brake-type casters 20 are installed at the four corners of the bottom of the base 19 to facilitate the movement and fixed use of the heat exchange equipment.

[0017] In this embodiment, the outer shell 1 includes a shell 21. Both ends of the shell 21 are open and bolted with end caps 23 equipped with sealing rings 22. Mounting plates 24 are fixedly installed on the upper and lower sides of one end of the shell 21. Fixing plates 25 are fixedly installed on the outer sides of the vacuum tube 2 corresponding to the mounting plates 24. The fixing plates 25 abut against the corresponding mounting plates 24 and are fixedly connected by bolts. This allows the vacuum tube 2 to be inserted into the shell 21 from one end until the fixing plate 25 abuts against the corresponding mounting plate 24. Then, the fixing plates 25 are bolted to the corresponding mounting plates 24, thus completing the positioning and fixing of the vacuum tube 2 within the shell 21. Finally, the end caps 23 are bolted in place. This allows the shell 21, end caps 23, and vacuum tube 2 of the X-ray tube to be disassembled, facilitating maintenance and replacement, and making the overall use more flexible and convenient.

[0018] In this embodiment, a cathode 26 is fixedly installed at the end of the vacuum tube 2 away from the anode 4. A filament 27 is provided on the end of the cathode 26 facing the target surface of the anode 4, and a focusing shroud 28 is fitted on the outer side of this end. A beryllium window 29 is installed on the vacuum tube 2 corresponding to the filament 27 and the target surface of the anode 4. A radiation tube 30 with a sealing ring 22 is connected to the housing 21 corresponding to the beryllium window 29. The end of the radiation tube 30 with the sealing ring 22 abuts against the frame of the beryllium window 29. In use, electrons are generated by the thermionic effect from the filament 27 on the cathode 26, which are then focused by the focusing shroud 28 and bombarded onto the target surface of the anode 4, thereby generating X-rays that are emitted through the beryllium window 29 and the radiation tube 30. The vacuum tube 2, anode 4, cathode 26, filament 27, focusing shroud 28, and beryllium window 29 can all be made using existing technologies.

[0019] In this embodiment, both end caps 23 are provided with through holes 31 with sealing rings 22 for the extension of corresponding wires, cables, oil pipes and other components.

[0020] In this embodiment, the housing 21 is connected to an oil injection pipe 33 with an oil injection valve 32, which is used to inject insulating oil 3 into the housing 21 after the X-ray tube is assembled.

[0021] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high-efficiency heat-dissipating X-ray tube, comprising an outer shell, a vacuum tube disposed within the outer shell, insulating oil filled between the vacuum tube and the outer shell, and an anode fixed to one end of the vacuum tube and extending out of the vacuum tube, characterized in that, A cavity is formed at the target surface of the anode. Several oil inlet channels and one oil outlet channel are formed axially within the anode. The oil inlet channels are circumferentially spaced around the oil outlet channel, with one end of each channel communicating with the cavity and the other end connecting to the end face of the anode extending from the vacuum tube. An oil outlet pipe is fixedly connected to the oil outlet channel, extending out of the outer casing. A return oil pipe with a return valve is connected to the outer casing. An oil outlet pump, a return oil pump, and a screw conveyor are located outside the outer casing. The spiral coil has an inlet detachably connected to the oil outlet pipe and an outlet fixedly connected to the lower port of the spiral coil. The inlet of the return oil pump is fixedly connected to the upper port of the spiral coil and its outlet is detachably connected to the return oil pipe. Vertical plates are provided on both the front and rear sides of the spiral coil. Several semiconductor cooling chips are embedded in the front vertical plate, with the cooling surface of the semiconductor cooling chips facing the spiral coil and abutting against it. Several axial flow fans are embedded in the rear vertical plate, with the air outlet of the axial flow fans facing the spiral coil.

2. The high-efficiency heat dissipation X-ray tube according to claim 1, characterized in that, The inlet of the oil pump and the outlet of the return oil pump are both fixedly connected to hoses, and the hoses are connected to the corresponding oil outlet pipe and return oil pipe through quick connectors.

3. The high-efficiency heat dissipation X-ray tube according to claim 1, characterized in that, Both vertical plates are fixed on a base, and brake-type omnidirectional wheels are installed at the four corners of the bottom of the base.

4. The high-efficiency heat dissipation X-ray tube according to claim 1, characterized in that, The outer shell includes a housing, with open ends at both the left and right sides and end caps with sealing rings bolted to them. Mounting plates are fixed on both the upper and lower sides inside one end of the housing, and fixing plates are fixed on the outer side of the vacuum tube corresponding to the mounting plate. The fixing plates abut against the corresponding mounting plates and are fixedly connected by bolts.

5. The high-efficiency heat dissipation X-ray tube according to claim 4, characterized in that, A cathode is fixed inside the end of the vacuum tube away from the anode. A filament is provided on the end of the cathode facing the target surface of the anode, and a focusing shroud is fitted on the outside of this end. A beryllium window is installed on the vacuum tube corresponding to the filament and the target surface of the anode. A radiation tube with a sealing ring is connected to the shell corresponding to the beryllium window. The end of the radiation tube with the sealing ring abuts against the frame of the beryllium window.

6. The high-efficiency heat dissipation X-ray tube according to claim 4, characterized in that, Both end caps have through holes with sealing rings.

7. The high-efficiency heat dissipation X-ray tube according to claim 4, characterized in that, The housing is connected to an oil injection pipe with an oil injection valve.

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