CN107546089B - High-power X-ray tube - Google Patents
High-power X-ray tube Download PDFInfo
- Publication number
- CN107546089B CN107546089B CN201610633487.6A CN201610633487A CN107546089B CN 107546089 B CN107546089 B CN 107546089B CN 201610633487 A CN201610633487 A CN 201610633487A CN 107546089 B CN107546089 B CN 107546089B
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- stator
- rotor
- positive pole
- anode
- ray tube
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- 239000002826 coolant Substances 0.000 claims abstract description 35
- 239000000919 ceramic Substances 0.000 claims abstract description 17
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 230000006978 adaptation Effects 0.000 claims 1
- 230000017525 heat dissipation Effects 0.000 abstract description 22
- 239000000110 cooling liquid Substances 0.000 abstract description 7
- 230000000694 effects Effects 0.000 description 8
- 238000001816 cooling Methods 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 2
- 229910001338 liquidmetal Inorganic materials 0.000 description 2
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 2
- 229910052721 tungsten Inorganic materials 0.000 description 2
- 239000010937 tungsten Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002591 computed tomography Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Landscapes
- X-Ray Techniques (AREA)
Abstract
The invention provides a high-power X-ray tube, which comprises a tube shell with a hollow cavity, wherein ceramic flanges are arranged at two ends of the tube shell, an anode target disc assembly is arranged in the tube shell, a cooling medium inlet pipeline and a cooling medium outlet are arranged on the ceramic flanges, the anode target disc assembly comprises an anode target surface, a rotor and a stator, the stator is fixedly connected to the ceramic flanges respectively, the rotor is sleeved on the outer side of the stator, an anode front stator heat dissipation groove and an anode back stator heat dissipation groove are respectively arranged at the end part of the stator, and an anode front rotor heat dissipation groove and an anode back rotor heat dissipation groove are respectively arranged at the end part of the rotor. According to the invention, the cooling liquid is conveyed into the stator through the cooling medium inlet pipeline, the contact area is large, the heat generated by the anode can be quickly transferred out through the cooling liquid, the temperature of the bearing is ensured to be low, the bearing structure is effectively protected, and the service life and the working efficiency of the X-ray tube are improved.
Description
Technical Field
The invention relates to the field of medical equipment, in particular to a high-power X-ray tube.
Background
An X-ray computed tomography apparatus (simply referred to as an "X-ray CT apparatus") irradiates an object with X-rays, and detects the X-rays transmitted through the object, thereby obtaining projection data composed of X-ray absorption coefficients in the object; among X-ray CT apparatuses, there is a multi-tube type X-ray CT apparatus having a plurality of X-ray tubes (i.e., X-ray tube apparatuses).
At present, an X-ray tube is always an important and precious component on a medical CT instrument, but in the current practice process, the component belongs to a consumable product and is easy to damage, and the local position cooling effect of the existing X-ray tube is not good enough, so that the service life of the X-ray tube is greatly shortened.
The existing high-power X-ray tube generally dissipates heat in a mode of radiation and heat transfer, but the heat is transferred out through a tube shell when the X-ray tube transfers heat, and the heating element tungsten disc assembly is in a high vacuum state, so that the heat transfer is slower and the effect is poorer. Another is a liquid metal bearing adopting a through-core cooling mode, but the liquid metal bearing cannot take away too much heat, and because the contact area of a cooling medium is small, the temperature of the bearing can be only ensured not to be too high, and the heat taken away by a tungsten disc heating component is less. Therefore, it is highly desirable to provide a high-power X-ray tube, which uses a cooling medium to exchange heat inside a target disk, thereby improving cooling effect and prolonging life of the X-ray tube.
Disclosure of Invention
In order to solve the problems of the prior art, the invention provides a high-power X-ray tube, which comprises a tube shell with a hollow cavity, wherein ceramic flanges are arranged at two ends of the tube shell, an anode target disc assembly is arranged in the tube shell, a cooling medium inlet pipeline and a cooling medium outlet are arranged on the ceramic flanges, the anode target disc assembly comprises an anode target surface, a rotor and a stator, the stator is fixedly connected to the ceramic flanges respectively, the rotor is sleeved on the outer side of the stator, an anode front stator heat dissipation groove and an anode back stator heat dissipation groove are respectively arranged at the end part of the stator, an anode front rotor heat dissipation groove and an anode back rotor heat dissipation groove are respectively arranged at the end part of the rotor, the shape of the anode front stator heat dissipation groove is matched with the shape of the anode front rotor heat dissipation groove, and the shape of the anode back stator heat dissipation groove is matched with the shape of the anode back rotor heat dissipation groove.
Preferably, the positive stator heat dissipation groove, the positive rotor heat dissipation groove and the positive rotor heat dissipation groove are in a concave-convex alternate shape.
Preferably, the stator and the rotor are connected through a bearing.
Preferably, the upper end of the tube shell is provided with an X-ray port.
Preferably, the side of the tube shell is provided with a cathode.
Preferably, the cooling medium inlet duct extends to the inside of the stator.
The technical scheme provided by the invention has the beneficial effects that: according to the high-power X-ray tube provided by the invention, the rotating part is sealed in the tube shell, the cooling liquid is conveyed into the stator through the cooling medium inlet pipeline, the contact area is large, the heat generated by the anode can be quickly transferred out through the cooling liquid, the temperature of the bearing is ensured to be low, the bearing structure is effectively protected, and the service life and the working efficiency of the X-ray tube are improved; the invention has good cooling effect, convenient operation and reasonable structure, and greatly prolongs the service life of the X-ray tube.
Drawings
In order to more clearly illustrate the technical solutions of the present invention, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic cross-sectional view of a high power X-ray tube according to the present invention;
Fig. 2 is a schematic view of the left end structure of the high-power X-ray tube according to the present invention;
Fig. 3 is a schematic view of the right end structure of the high-power X-ray tube according to the present invention.
Reference numeral in the figure: 1. a tube shell; 2. a ceramic flange; 3. a first cooling medium inlet duct; 4. a first cooling medium outlet; 5. a stator; 6. a rotor; 7. an anode target plate assembly; 8. positive pole front rotor heat sink; 9. positive stator heat sink of positive pole; 10. a rotor heat dissipation groove on the back side of the anode; 11. a stator heat dissipation groove on the back side of the anode; 12. a second cooling medium inlet conduit; 13. a second cooling medium outlet; 14. a bearing; 15. a cathode; 16. an anode target surface; 17. an X-ray port.
Detailed Description
In order to make the contents of the present invention more clear and understandable, the contents of the present invention will be further described with reference to the accompanying drawings. Of course, the invention is not limited to this particular embodiment, and common alternatives known to those skilled in the art are also encompassed within the scope of the invention. In the following description, the present invention will be described in detail with reference to the drawings, which are not to be construed as limiting the invention, for the purpose of illustration and not as a definition of the limits of the invention.
The above and other technical features and advantageous effects of the present invention will be described in detail with reference to the embodiments and the accompanying drawings. As shown in the figure, FIG. 1 is a schematic cross-sectional structure of a high-power X-ray tube provided by the invention; fig. 2 is a schematic view of the left end structure of the high-power X-ray tube according to the present invention; fig. 3 is a schematic view of the right end structure of the high-power X-ray tube according to the present invention.
As shown in fig. 1-3, the present invention provides a high-power X-ray tube, which comprises a tube shell 1 with a hollow cavity, wherein an X-ray port 17 is arranged at the upper end of the tube shell 1, a cathode 15 is arranged at the side part of the tube shell 1, ceramic flanges 2 for sealing are arranged at both ends of the tube shell 1, and meanwhile, the ceramic flanges 2 can insulate between the stator 5 and the tube shell 1 due to the electric conduction of the stator 5, and the diameter of the ceramic flange at the left side in the embodiment is larger than that of the ceramic flange at the right side. The inside anode target plate assembly 7 that is equipped with of shell 1 is equipped with coolant inlet pipe and coolant outlet on the ceramic flange 2, and wherein, coolant inlet pipe includes first coolant inlet pipe 3 and second coolant inlet pipe 12, and the coolant outlet includes first coolant outlet 4 and second coolant outlet 13, and first coolant inlet pipe 3 and second coolant inlet pipe 12 extend to the inside of stator.
Specifically, in this embodiment, the anode target disc assembly includes anode target surface 16, rotor 6 and stator 5, connect through bearing 14 between stator 5 and the rotor 6, stator 5 is two, two stators 5 rigid coupling respectively on ceramic flange 2, the outside of stator 5 is located to the rotor 6 cover, the tip of stator 5 is equipped with positive stator heat dissipation groove 9 of the positive stator of unsmooth alternate and positive negative stator heat dissipation groove 11 respectively, the tip of rotor 6 is equipped with positive rotor heat dissipation groove 8 of positive and positive negative rotor heat dissipation groove 10 respectively, through setting up the alternate heat dissipation groove structure of unsmooth greatly increased the area of contact of coolant liquid, the positive pole radiating effect has been accelerated.
The shape of the positive stator heat sink 9 in this embodiment is adapted to the shape of the positive rotor heat sink 8, and the positive stator heat sink 11 is adapted to the shape of the negative rotor heat sink 10, and preferably, the positive stator heat sink 9, the negative stator heat sink 11, the positive rotor heat sink 8 and the negative rotor heat sink 10 are in a concave-convex alternate shape, and may be set to other shapes, and the specific shape is set according to the requirement.
The cooling medium in the invention simultaneously enters from the first cooling medium inlet pipeline 3 and the second cooling medium inlet pipeline 12, reaches the inside of the stator 5, the diameters of the first cooling medium inlet pipeline 3 and the second cooling medium inlet pipeline 12 are smaller than the diameter of the ceramic flange 2, and the cooling liquid passes through the inside of the stator 5 and takes away the heat of the anode, and then flows out from the first cooling medium outlet 4 and the second cooling medium outlet 13.
In summary, the high-power X-ray tube provided by the invention has the advantages that the rotating part is sealed in the tube shell, the cooling liquid is conveyed into the stator through the cooling medium inlet pipeline, the contact area is large, the heat generated by the anode can be quickly transferred out through the cooling liquid, the temperature of the bearing is ensured to be lower, the bearing structure is effectively protected, and the service life and the working efficiency of the X-ray tube are improved; the invention has good cooling effect, convenient operation and reasonable structure, and greatly prolongs the service life of the X-ray tube.
Although the present invention has been mainly described in the above embodiments, it is described by way of example only, and the present invention is not limited thereto. Numerous variations and applications can be made by those skilled in the art without departing from the essential characteristics of the embodiments. For example, each component shown in detail of the embodiments may be modified and operated, and differences related to the modifications and applications may be construed as being included in the protection scope of the present invention as defined in the appended claims. Reference in the specification to an embodiment means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the invention. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment. Furthermore, when a particular feature, structure, or characteristic is described in connection with any embodiment, it is submitted that it is within the purview of one skilled in the art to effect such feature, structure, or characteristic in connection with other ones of the embodiments.
Claims (4)
1. The utility model provides a high-power X-ray bulb, its characterized in that includes the tube shell that has the cavity, the both ends of tube shell all are equipped with the ceramic flange that is used for sealedly, the inside positive pole target dish subassembly that is equipped with of tube shell, be equipped with coolant inlet pipe and coolant export on the ceramic flange, coolant inlet pipe extends to the inside of stator, positive pole target dish subassembly includes positive pole target surface, rotor, first stator and second stator, connects through the bearing between first stator and the rotor, and the one end of two stators is respectively rigid coupling on the ceramic flange, and the other end of two stators is equipped with positive stator radiating slot of positive pole and positive pole negative stator radiating slot respectively, and the tip of positive pole target surface is equipped with positive rotor radiating slot of positive pole and positive pole negative rotor radiating slot respectively, positive pole negative pole stator radiating slot and positive pole negative stator radiating slot's shape looks adaptation positive stator radiating slot of positive pole, positive pole negative pole stator radiating slot and positive pole negative pole rotor radiating slot are the alternate shape.
2. The high power X-ray tube of claim 1, wherein the stator and rotor are connected by bearings.
3. The high power X-ray tube of claim 1, wherein the upper end of the tube housing is provided with an X-ray port.
4. The high power X-ray tube according to claim 1, wherein the side of the envelope is provided with a cathode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610633487.6A CN107546089B (en) | 2016-08-04 | 2016-08-04 | High-power X-ray tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610633487.6A CN107546089B (en) | 2016-08-04 | 2016-08-04 | High-power X-ray tube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107546089A CN107546089A (en) | 2018-01-05 |
| CN107546089B true CN107546089B (en) | 2024-05-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610633487.6A Active CN107546089B (en) | 2016-08-04 | 2016-08-04 | High-power X-ray tube |
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| CN (1) | CN107546089B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108143433A (en) * | 2018-02-07 | 2018-06-12 | 叶华伟 | A kind of bulb cooling system |
| CN108766861A (en) * | 2018-07-30 | 2018-11-06 | 麦默真空技术无锡有限公司 | A kind of anode assemblies for X ray CT pipe |
| CN109817499A (en) * | 2019-02-01 | 2019-05-28 | 中国科学院电子学研究所 | High power density water cooling anode |
| CN110680364A (en) * | 2019-11-16 | 2020-01-14 | 新乡市特美特热控技术股份有限公司 | Cooling method and cooling system for high-power X-ray tube assembly |
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| JPH06196112A (en) * | 1992-04-08 | 1994-07-15 | Toshiba Corp | Rotating anode type x-ray tube |
| JPH06251734A (en) * | 1993-02-17 | 1994-09-09 | Philips Electron Nv | X-ray tube rotary anode driving device |
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| CN107546089A (en) | 2018-01-05 |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20180313 Address after: 201300 Shanghai city Pudong New Area Town Park Road 318, building 7, floor 1 A zone Applicant after: SHANGHAI JUN'AN MEDICAL TECHNOLOGY CO.,LTD. Address before: 201512 Shanghai City, Jinshan District Jinshanwei town Qiushi Road No. 688 No. 1 Building 3 unit 345 room B Applicant before: SHANGHAI CHENGMING ELECTRONIC TECHNOLOGY Co.,Ltd. |
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