Ion source for stable isotope electromagnetic separator
By setting up extension tubes at the filament bracket and utilizing the high conductivity and flexibility of copper material, effective heat dissipation of the filament bracket is achieved, solving the problem of adhesion between the filament and the filament bracket, extending the service life and reducing maintenance costs.
Patent Information
- Application Number
- CN202421730324.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-20
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-07-20
AI Technical Summary
The filament bracket generates a large amount of heat in the stable isotope electromagnetic separator, causing the filament to adhere to the filament bracket, increasing the frequency of maintenance and shortening the service life.
The extension tube is used to contact the filament bracket, and the conductive rod itself is cooled and heat dissipated through the structural design of the extension tube, and the extension tube is divided into deformable connection parts for easy maintenance. Combined with the high conductivity and softness of copper material, the heat dissipation effect is enhanced.
Reduces the temperature of the filament bracket, reduces the possibility of adhesion between the filament and the filament bracket, extends service life and reduces maintenance costs.
Smart Images
Figure CN223127734U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of isotope electromagnetic separators, and particularly to an ion source for a stable isotope electromagnetic separator. Background Art
[0002] The ion source for a stable isotope electromagnetic separator can perform isotope separation. By supplying power to the filament in the ion source of the separator, the filament emits electrons. The electrons enter the arc discharge chamber under the action of a magnetic field and an electric field, and then ionize the ytterbium chloride vapor in the arc discharge chamber to form a plasma.
[0003] It is found in actual use that the filament support for fixing the filament in the ion source generates a large amount of heat, which may cause the filament to adhere to the filament support, resulting in frequent operation and maintenance and a short service life of the filament. Summary of the Utility Model
[0004] In order to cool the filament support and reduce costs, this application provides a filament cooling solution for an ion source of a stable isotope electromagnetic separator.
[0005] An ion source for a stable isotope electromagnetic separator provided by this application adopts the following technical solutions:
[0006] An ion source for a stable isotope electromagnetic separator includes a conductance rod and a filament support. A filament is arranged on the filament support. The conductance rod is used to supply power to the filament. The conductance rod includes a first outer tube and a first inner tube. The first inner tube is arranged inside the first outer tube, and there is a gap between the first inner tube and the first outer tube. It further includes an extension tube. The extension tube is communicated with the conductance rod. The end of the extension tube away from the conductance rod is arranged on the filament support, and the extension tube can be conducted with the filament.
[0007] By adopting the above technical solutions, by arranging the extension tube and the extension tube can contact the filament support, that is, the end of the extension tube is arranged on the filament support, it can not only realize the cooling and heat dissipation of the conductance rod itself, but also cool and dissipate heat from the filament support, so as to reduce the temperature at the filament support, reduce the possibility of adhesion between the filament and the filament support due to high temperature, reduce the operation and maintenance cost, and increase the service life.
[0008] Optionally, the extension tube includes a second outer tube and a second inner tube. The second inner tube is arranged inside the second outer tube, and there is a gap between the second inner tube and the second outer tube. The second outer tube is fixedly communicated with the first outer tube, the second inner tube is fixedly communicated with the first inner tube, the end of the second outer tube away from the first outer tube is sealed, and there is a gap between the end of the second inner tube and the seal.
[0009] By adopting the above technical solution, the structure of the extension tube is similar to that of the conductance rod, so that the medium for heat dissipation can flow therein, and then the temperature can be reduced to dissipate heat, so as to reduce the temperature of the filament support.
[0010] Optionally, the extension tube is divided into a first connection part and a second connection part. The first connection part is used to connect with the conductance rod, and the second connection part is used to be arranged at the filament support. The first connection part adopts a corrugated pipe.
[0011] By adopting the above technical solution, the extension tube is divided into a first connection part and a second connection part, and the first connection part adopts a corrugated pipe, so that this part can change its shape. When in use, this part can be bent to meet the need of being able to contact the filament support. When maintenance is required, this part can be straightened so that the conductance rod and the extension tube are in a straight line, and then taken out, which is convenient for disassembly and assembly.
[0012] Optionally, the filament support includes a ceramic block and a fixing base. The second connection part passes through the ceramic block, and a first hole is opened on the fixing base. The second connection part also passes through the first hole, and the inner wall of the first hole fits with the second connection part.
[0013] By adopting the above technical solution, by passing the second connection part through the first hole and through the ceramic block, fitting is realized, and the contact area is large, which can better dissipate heat from the fixing base and the ceramic block, and the heat dissipation effect is better.
[0014] Optionally, a second hole and a third hole are also opened on the fixing base. The third hole is perpendicular to the second hole, the third hole is communicated with the second hole, the third hole is provided with internal threads, a first bolt is arranged in the third hole, and the second hole is used for the filament to be inserted.
[0015] By adopting the above technical solution, it is convenient to install the filament, and by using the first bolt, the filament can be crimped, reducing the possibility of the filament falling off.
[0016] Optionally, the filament support further includes a fixing block. A fourth hole is opened on the fixing block. The fourth hole is provided with internal threads. A through hole corresponding to the fourth hole is opened on the ceramic block. A second bolt is arranged in the fourth hole. When fixing the ceramic block, the second bolt passes through the through hole and is screwed tightly in the fourth hole.
[0017] By adopting the above technical solution, the ceramic block can be fixed by using the second bolt, and it is convenient for disassembly and assembly.
[0018] Optionally, the extension tube adopts a tube made of red copper.
[0019] By adopting the above technical solution, the red copper has the characteristics of toughness, softness and ductility, which is convenient for the shape change of the corrugated pipe. Moreover, it has a high conductivity and can reduce the heat generation to a certain extent.
[0020] Optionally, the extension pipe and the conductance rod are welded by silver soldering.
[0021] In summary, the present application includes at least one of the following beneficial technical effects:
[0022] 1. By providing an extension pipe, and the extension pipe can be in contact with the filament bracket, that is, the end of the extension pipe is arranged on the filament bracket. It can not only realize the cooling and heat dissipation of the conductance rod itself, but also cool and dissipate heat from the filament bracket, so as to reduce the temperature at the filament bracket, reduce the possibility of adhesion between the filament and the filament bracket due to high temperature, reduce the operation and maintenance cost, and increase the service life.
[0023] 2. The extension pipe is divided into a first connection part and a second connection part. The first connection part adopts a corrugated pipe so that this part can change its shape. When in use, this part can be bent to meet the need of being in contact with the filament bracket. When maintenance is required, this part can be straightened so that the conductance rod and the extension pipe are in a straight line, and then taken out, which is convenient for disassembly and assembly.
[0024] 3. By passing the second connection part through the first hole and through the ceramic block, the fitting is realized, and the contact area is large, which can better dissipate heat from the fixing seat and the ceramic block, and the heat dissipation effect is better. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] Figure 1 is a schematic structural diagram showing the whole of the related art.
[0026] Figure 2 is a schematic diagram showing the filament bracket part of the related art.
[0027] Figure 3 is a cross-sectional view showing the inside of the conductance rod of the related art.
[0028] Figure 4 is a schematic structural diagram showing the whole of this embodiment.
[0029] Figure 5 is a schematic diagram showing the filament bracket and the extension pipe of this embodiment.
[0030] Figure 6 is a cross-sectional view showing the inside of the extension pipe and the fixing seat of this embodiment.
[0031] Figure 7 is an exploded view showing the fixing method of the ceramic block.
[0032] Description of reference numerals: 1. First conductance rod; 2. Second conductance rod; 3. First fixed disk; 4. Second fixed disk; 5. Filament support; 51. Ceramic block; 511. Conductive column; 6. First conductive terminal; 7. Second conductive terminal; 8. First outer sleeve; 9. First inner sleeve; 10. Connector; 11. Filament; 12. Extension tube; 121. Second outer sleeve; 122. Second inner sleeve; 123. First connection part; 124. Second connection part; 13. Fixed seat; 131. First bolt; 14. Fixed block; 15. Second bolt. Detailed implementation manners
[0033] The following further describes the present application in conjunction with Figure 1-7 accompanying drawings.
[0034] Referring to Figure 1 and Figure 2 In related technologies, the ion source for a stable isotope electromagnetic separator includes conductance rods, a first fixed disk 3, a second fixed disk 4, and a filament support 5. The first fixed disk 3 and the second fixed disk 4 are fixed by bolts, and corresponding through holes are provided on the first fixed disk 3 and the second fixed disk 4. The conductance rods include a first conductance rod 1 and a second conductance rod 2. The first conductance rod 1 and the second conductance rod 2 pass through the through holes. First conductive terminals 6 are provided at both ends of the first conductance rod 1 and the second conductance rod 2. Second conductive terminals 7 corresponding to the first conductive terminals 6 are provided on the filament support 5. The first conductive terminals 6 and the second conductive terminals 7 can be connected by wires.
[0035] A ceramic block 51 is further provided on the filament support 5. A conductive column 511 is provided inside the ceramic block 51. The second conductive terminal 7 is provided at the end of the conductive column 511. The end without the second conductive terminal 7 is used to supply power to the filament 11.
[0036] Referring to Figure 2 and Figure 3 Both the first conductance rod 1 and the second conductance rod 2 can conduct electricity and are used to supply power to the filament 11 on the filament support 5. The first conductance rod 1 further includes a first outer sleeve 8 and a first inner sleeve 9. There is a gap between the first inner sleeve 9 and the first outer sleeve 8. A connector 10 is provided at the end far from the first conductive terminal 6. At the end where the first conductive terminal 6 is provided, the end of the first outer sleeve 8 is sealed, and there is a gap between the first inner sleeve 9 and the sealed end of the first outer sleeve 8. That is, by connecting a heat dissipation device with the connector 10, water can flow inside the first conductance rod 1, thereby achieving heat dissipation. The second conductance rod 2 has the same structure as the first conductance rod 1, and details are not described here again.
[0037] Connected to an external driving and heat dissipating unit through a joint 10, it can enable the medium in the conductance rod to flow. The medium can flow in from the first inner sleeve 9, and after flowing to the sealed end of the first outer sleeve 8, it flows out between the first inner sleeve 9 and the first outer sleeve 8. The flowing medium exchanges heat with the conductance rod, thereby taking away heat, and then realizing the cooling and heat dissipation of the conductance rod. Water is generally selected as the medium.
[0038] An embodiment of the present application discloses an ion source for a stable isotope electromagnetic separator. Refer to Figure 4 , Figure 5 and Figure 6 , the ion source for a stable isotope electromagnetic separator includes an extension tube 12. Extension tubes 12 are provided at the ends of the first conductance rod 1 and the second conductance tube. The extension tube 12 is in communication with the conductance rod. The extension tube 12 includes a second outer sleeve 121 and a second inner sleeve 122. The second inner sleeve 122 is in communication with the first inner sleeve 9, and the second outer sleeve 121 is in communication with the first outer sleeve 8. The extension tube 12 is inserted into the ceramic block 51, and the extension tube 12 can be electrically connected to the filament 11.
[0039] The extension tube 12 is fixedly connected to the first conductance rod 1 and the second conductance rod 2 by silver soldering. And the extension tube 12 is made of red copper.
[0040] By using the extension tube 12 to replace the first conductive terminal 6 and the second conductive terminal 7 in the prior art, it can not only supply power to the filament 11, but also play a role in cooling the filament support 5.
[0041] Among them, the extension tube 12 is divided into two parts: a first connection part 123 and a second connection part 124. The first connection part 123 is used to connect to the first conduit, the second connection part 124 is connected to the first connection part 123, and the second connection part 124 is used to be arranged at the filament support 5. The first connection part 123 is a corrugated tube, that is, both the second outer sleeve 121 and the second inner sleeve 122 at the position of the first connection part 123 are corrugated tubes. By using a corrugated tube, the shape of the first connection part 123 can be changed under the action of an external force. When maintenance is required, the first conductance rod 1 needs to be taken out. If the extension tube 12 is a cylindrical tube and cannot change its shape, since the position of the filament support 5 is higher than the first conductance rod 1, at this time, the first conductance rod 1 cannot be pulled out from the first fixing plate 3 and the second fixing plate 4. However, when the first connection part 123 is arranged as a corrugated tube, the shape of the first connection part 123 can be changed at this time, so that the extension tube 12 and the first conductance rod 1 are in a straight line, so that the first conductance rod 1 can be pulled out from the fixing plate.
[0042] The maximum diameter of the second outer sleeve 121 does not exceed the diameter of the first outer sleeve 8.
[0043] Refer to Figure 5 andFigure 6 The filament support 5 further includes two fixing seats 13. The fixing seats 13 are used to fix the filament 11. There is a gap between the two fixing seats 13, that is, they are non-conductive when power is supplied to the filament 11 between the two fixing seats 13. The fixing seats 13 are used to conduct electricity with the extension tube 12. First holes are provided on both of the two fixing seats 13. After the second connecting portion 124 passes through the ceramic block 51, it can also be inserted into the first holes, and the side wall of the first hole fits with the second connecting portion 124. When the first conductance rod 1 is powered on, it conducts electricity with the fixing seat 13 after passing through the extension tube 12. The structure of the second conductance rod 2 is the same as that of the first conductance rod 1. The first conductance rod 1 and the second conductance rod 2 cooperate to supply power to the filament 11.
[0044] The second connecting portion 124 is inserted into the fixing seat 13. Compared with the end face of the second connecting portion 124 contacting the fixing seat 13, it can increase the contact area and dissipate heat better.
[0045] Refer to Figure 6 On the fixing seat 13, two second holes and two third holes are also provided. The third holes are perpendicular to the second holes and communicate with the second holes. The third holes are provided with internal threads, and a first bolt 131 is provided in the third holes. The filament 11 is inserted into the second holes, and then by screwing the first bolt 131, the filament 11 is pressed in the second holes by the first bolt 131, so that the filament 11 can conduct electricity with the fixing seat 13 and reduce the possibility of the filament 11 falling off.
[0046] Refer to Figure 7 The filament support 5 further includes two fixing blocks 14. Fourth holes are provided on both of the fixing blocks 14. Threads are provided in the fourth holes. Through holes corresponding to the fourth holes are provided on the ceramic block 51. Second bolts 15 are provided in the fourth holes. When it is necessary to fix the ceramic block 51 to the fixing blocks 14, the second bolts 15 are passed through the through holes on the ceramic block 51, and then the second bolts 15 are screwed tightly in the fourth holes.
[0047] In this embodiment, for two features to be able to conduct, it is to achieve the function of being able to conduct electricity. And for two features to communicate, it is to enable the flow of a medium for heat dissipation.
[0048] The implementation principle of the ion source for a stable isotope electromagnetic separator in the embodiment of the present application is: by setting the extension tube 12, the length of the conductance rod is extended, so that the conductance rod can contact the fixing seat 13 and the ceramic block 51, thereby achieving the effect of the conductance rod cooling the filament support 5.
[0049] Moreover, the first connecting portion 123 of the extension tube 12 is made of a corrugated pipe, which can deform, so that the extension tube 12 can be bent or become a straight tube. When in use, the extension tube 12 is bent so that the second connecting portion 124 can be arranged at the filament bracket 5. When it is necessary to take out the conductance rod for maintenance, the extension tube 12 is straightened so that the conductance rod can be withdrawn from the first fixing plate 3 and the second fixing plate 4.
[0050] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.
Claims
1. An ion source for a stable isotope electromagnetic separator, comprising a conductance rod and a filament bracket (5), wherein a filament (11) is arranged on the filament bracket (5), and the conductance rod is used for supplying power to the filament (11). The conductance rod includes a first outer sleeve (8) and a first inner sleeve (9), the first inner sleeve (9) is arranged inside the first outer sleeve (8), and there is a gap between the first inner sleeve and the first outer sleeve (8). It is characterized in that: It includes an extension tube (12) which communicates with the conductance rod. The end of the extension tube (12) away from the conductance rod is arranged on the filament support (5), and the extension tube (12) can conduct electricity with the filament (11).
2. The ion source for a stable isotope electromagnetic separator according to claim 1, wherein: The extension tube (12) includes a second outer tube (121) and a second inner tube (122). The second inner tube (122) is arranged inside the second outer tube (121). There is a gap between the second inner tube (122) and the second outer tube (121). The second outer tube (121) is fixedly communicated with the first outer tube (8). The second inner tube (122) is fixedly communicated with the first inner tube (9). The end of the second outer tube (121) away from the first outer tube (8) is sealed, and there is a gap between the end of the second inner tube (122) and the seal.
3. An ion source for a stable isotope electromagnetic separator according to claim 1 or 2, characterized in that: The extension tube (12) is divided into a first connection part (123) and a second connection part (124). The first connection part (123) is used to connect with the conductance rod. The second connection part (124) is used to be arranged at the filament support (5). The first connection part (123) is made of a corrugated tube.
4. An ion source for a stable isotope electromagnetic separator according to claim 3, characterized in that: The filament support (5) includes a ceramic block (51) and a fixing seat (13). The second connection part (124) passes through the ceramic block (51). A first hole is formed in the fixing seat (13). The second connection part (124) also passes through the first hole, and the inner wall of the first hole fits with the second connection part (124).
5. The ion source for a stable isotope electromagnetic separator according to claim 4, characterized in that: A second hole and a third hole are also formed in the fixing seat (13). The third hole and the second hole are perpendicular to each other. The third hole communicates with the second hole. The third hole is provided with internal threads. A first bolt (131) is arranged in the third hole. The second hole is used for the filament (11) to be inserted.
6. An ion source for a stable isotope electromagnetic separator according to claim 4, characterized in that: The filament support (5) further includes a fixing block (14). A fourth hole is formed in the fixing block (14). The fourth hole is provided with internal threads. A through hole corresponding to the fourth hole is formed in the ceramic block (51). A second bolt (15) is arranged in the fourth hole. When fixing the ceramic block (51), the second bolt (15) passes through the through hole and is screwed tightly into the fourth hole.
7. An ion source for a stable isotope electromagnetic separator according to claim 1, characterized in that: The extension tube (12) is made of a tube of copper material.
8. An ion source for a stable isotope electromagnetic separator according to claim 1 or 7, characterized in that: The extension tube (12) and the conductance rod are welded by silver soldering.