CN219759517U - High-power vacuum diode device - Google Patents
High-power vacuum diode device Download PDFInfo
- Publication number
- CN219759517U CN219759517U CN202121034113.5U CN202121034113U CN219759517U CN 219759517 U CN219759517 U CN 219759517U CN 202121034113 U CN202121034113 U CN 202121034113U CN 219759517 U CN219759517 U CN 219759517U
- Authority
- CN
- China
- Prior art keywords
- water
- vacuum
- cooled anode
- diode device
- cathode
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 45
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 38
- 239000011521 glass Substances 0.000 claims abstract description 32
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 19
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229910052721 tungsten Inorganic materials 0.000 claims abstract description 10
- 239000010937 tungsten Substances 0.000 claims abstract description 10
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims 1
- 229910052760 oxygen Inorganic materials 0.000 claims 1
- 239000001301 oxygen Substances 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000001816 cooling Methods 0.000 description 10
- 238000012360 testing method Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 6
- 230000009471 action Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 239000011149 active material Substances 0.000 description 1
- 239000013543 active substance Substances 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 231100000572 poisoning Toxicity 0.000 description 1
- 230000000607 poisoning effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Measuring Fluid Pressure (AREA)
Abstract
The utility model discloses a high-power vacuum diode device, which comprises a water-cooled anode, wherein the water-cooled anode is of a cylindrical structure, a containing cavity is arranged in the water-cooled anode, a water inlet and a water outlet are arranged at the top end of the water-cooled anode, the water inlet and the water outlet are both connected with a water circulation system, the bottom end of the water-cooled anode is connected with a vacuum glass cover, a high vacuum interface is arranged at the bottom end of the vacuum glass cover, and the high vacuum interface is connected with a three-stage vacuum pump system; the water-cooled anode is characterized in that a cathode is arranged between the water-cooled anode and the vacuum glass cover, the cathode comprises a nickel cylinder, a tungsten sponge body is fixedly arranged at the top end of the nickel cylinder, a hot wire is arranged in the nickel cylinder and is connected with a negative electrode of a power supply, and a positive electrode of the power supply is connected with the water-cooled anode. The utility model provides a high-power vacuum diode device which can accurately measure the heat emission and the rapid service life of a cathode with high emission current capability, and has the advantages of low manufacturing cost, easy operation and reusability.
Description
Technical Field
The utility model relates to the technical field of vacuum electronics, in particular to a high-power vacuum diode device.
Background
Thermal emission and lifetime characteristics are two important performance criteria for cathodes, and cathodes with higher thermal emission and longer lifetime have been the targets pursued by electric vacuum persons. With the development of high-power electric vacuum devices, the quality requirement of the 'heart' part, namely the cathode, is also higher and higher, so that the working performance of the cathode needs to be known more accurately.
However, the current devices for researching the thermal emission and life characteristics of the cathode have a certain power margin, and the conventional experimental devices cannot perform accurate thermal emission test on the cathode with larger emission capability. In the conventional testing device, after receiving a large heat emission current, the temperature of the anode rises to be very high due to the fact that the heat is not released, so that gas in the anode is diffused out at high temperature to form plasma, on one hand, cathode poisoning is caused, and on the other hand, an inaccurate testing result of the cathode is caused. In addition, as the anode temperature increases, the distance between the cathode and anode will be a function of temperature, which may result in an inability to accurately calculate the cathode thermal emission current density and thus an inaccurate knowledge of the thermal emission capability of the cathode.
Disclosure of Invention
Aiming at the problems in the related art, the utility model provides a high-power vacuum diode device, which solves the problems that the prior device for researching the thermal emission and service life characteristics of a cathode has a certain power margin, and a common experimental device cannot accurately test the thermal emission of the cathode with larger emission capacity.
In order to achieve the technical purpose, the technical scheme of the utility model is as follows:
the high-power vacuum diode device comprises a water-cooling anode, wherein the water-cooling anode is of a cylindrical structure, a containing cavity is formed in the water-cooling anode, a water inlet and a water outlet are formed in the top end of the water-cooling anode, the water inlet and the water outlet are connected with a water circulation system, the bottom end of the water-cooling anode is connected with a vacuum glass cover, a high vacuum interface is arranged at the bottom end of the vacuum glass cover, and the high vacuum interface is connected with a three-stage vacuum pump system; the water-cooling anode is characterized in that a cathode is arranged between the water-cooling anode and the vacuum glass cover, the cathode comprises a nickel cylinder, a tungsten sponge body is fixedly arranged at the top end of the nickel cylinder, the nickel cylinder is hollow, a hot wire is arranged inside the nickel cylinder, the hot wire is connected with the cathode of a power supply, and the anode of the power supply is connected with the water-cooling anode.
Further, a conductive core column is fixedly arranged on the outer wall of the vacuum glass cover.
Further, the vacuum glass cover and the water-cooled anode are connected through a flange.
Further, the diameters of the water inlet and the water outlet are 0.5-2.0cm.
Further, the water-cooled anode is made of oxygen-free copper.
Further, the diameter of the water-cooled anode is 2.0-5.0cm, and the height is 10-30cm.
Further, the diameter of the cathode is 1-5mm, and the height is 5-10mm.
Further, the diameter of the vacuum glass cover is 5.0-10.0cm, and the height is 10-20cm.
Further, the tungsten sponge has a pore size of 1-5 QUOTE />。
The utility model has the beneficial effects that: the high-power vacuum diode device can accurately measure the heat emission and the rapid service life of the cathode with high emission current capability, and has the advantages of low manufacturing cost, easy operation and repeated use.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a high-power vacuum diode device according to an embodiment of the present utility model;
fig. 2 is a schematic view of a cathode structure of a high-power vacuum diode device according to an embodiment of the present utility model;
in the figure: 1. a water inlet; 2. a water outlet; 3. a water-cooled anode; 4. a conductive stem; 5. a cathode; 6. a vacuum glass cover; 7. a high vacuum interface; 8. tungsten sponge; 9. a nickel cylinder; 10. a hot wire.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which are derived by a person skilled in the art based on the embodiments of the utility model, fall within the scope of protection of the utility model.
As shown in fig. 1, the high-power vacuum diode device according to the embodiment of the utility model is characterized by comprising a water-cooled anode 3, wherein the water-cooled anode 3 is of a cylindrical structure and is internally provided with a cavity, the top end of the water-cooled anode 3 is provided with a water inlet 1 and a water outlet 2, the water inlet 1 and the water outlet 2 are both connected with a water circulation system, the bottom end of the water-cooled anode 3 is connected with a vacuum glass cover 6, the bottom end of the vacuum glass cover 6 is provided with a high vacuum interface 7, and the high vacuum interface 7 is connected with a three-stage vacuum pump system and vacuumizes the vacuum glass cover 6; the water-cooled anode is characterized in that a cathode 5 is arranged between the water-cooled anode 3 and the vacuum glass cover 6, the cathode 5 comprises a nickel cylinder 9, a tungsten sponge 8 is fixedly arranged at the top end of the nickel cylinder 9, the nickel cylinder 9 is hollow, a hot wire 10 is arranged inside the nickel cylinder, the hot wire 10 is connected with the cathode of a power supply, and the anode of the power supply is connected with the water-cooled anode 3.
As shown in fig. 1-2, in this embodiment, the outer wall of the vacuum glass cover 6 is fixedly provided with a conductive core column 4, which can be used for connecting a cathode and an anode, and can be used for fixing the position of the cathode 5 and providing thermal power after being connected with the hot wire 10.
In this embodiment, as shown in fig. 1, the vacuum glass cover 6 and the water-cooled anode 3 are connected by a flange, so that the tightness of the device can be increased.
In this embodiment, as shown in fig. 1, the diameters of the water inlet 1 and the water outlet 2 are 0.5-2.0cm, and the cooling of the anode surface receiving the heat emission current can be achieved by water or other fluids.
As shown in fig. 1, in this embodiment, the water-cooled anode 3 is made of oxygen-free copper, so as to improve the durability of the device.
In this embodiment, as shown in fig. 1, the diameter of the water-cooled anode 3 is 2.0-5.0cm and the height is 10-30cm.
In this embodiment, as shown in fig. 1, the diameter of the cathode 5 is 1-5mm and the height is 5-10mm.
In this embodiment, as shown in FIG. 1, the vacuum glass cover 6 has a diameter of 5.0-10.0cm and a height of 10-20cm.
As shown in FIG. 2, in this embodiment, the tungsten sponge 8 has a porosity of 1-5 QUOTE />Can be used to store thermally emissive active materials.
In this embodiment, as shown in fig. 2, the hollow nickel cylinder 9 is mainly used for holding the hot wire 10 and alumina insulation.
For facilitating the further understanding of the above technical solution, the working principle thereof will now be described:
as shown in figures 1-2, when in operation, the water-cooled anode 3 is fed by the water inlet 1 and discharged by the water outlet 2 to realize the cooling effect on the anode. The water-cooled anode 3 is a cylinder, and its bottom, i.e. the electron receiving surface, is circular. When the heat emission and quick life characteristic test is carried out, the cathode 5 is positioned at the center of the bottom of the water-cooled anode 3, and the top of the vacuum glass cover 6 is connected with the water-cooled anode 3 by a flange and sealed; when the device is used, firstly, the water inlet 1 and the water outlet 2 of the water-cooled anode 3 are opened, then the high vacuum interface 7 is connected to the three-stage vacuum pump system to vacuumize the vacuum glass cover 6, and the vacuum degree in the glass cover is better than 10 -6 And at Pa, finally, heating the cathode 5 to a set temperature by using a hot wire 10, connecting the cathode 5 with a negative electrode, connecting the water-cooled anode 3 with a positive electrode, and starting the thermal emission or rapid life characteristic test of the cathode 5.
In the device structure, the water inlet 1 and the water outlet 2 are connected with a water circulation system, the diameters of the water inlet 1 and the water outlet 2 are the same and are 0.5-2.0cm, the temperature of an anode surface for receiving heat emission current is reduced by water or other fluids, the material of the water-cooled anode 3 is oxygen-free copper, the water-cooled anode 3 is a cylinder, the diameter of the water-cooled anode 3 is 2.0-5.0cm, the height of the water-cooled anode is 10-30cm, the top of the water-cooled anode 3 is provided with the water inlet 1 and the water outlet 2, and the bottom of the water-cooled anode 3 is provided with an anode surface for receiving heat emission electrons. The conductive core column 4 is used for connecting a cathode and an anode, and can be used for fixing the position of the cathode 5, providing thermal power after being connected with the hot wire 10, and the like. The cathode 5 is composed of a tungsten sponge 8, a nickel cylinder 9 and a hot wire 10, the diameter of the cathode 5 is 1-5mm, and the height is 5-10mm. The top of the vacuum glass cover 6 is connected with the water-cooled anode 3 through a flange and sealed, the diameter of the vacuum glass cover 6 is 5.0-10.0cm, and the height of the vacuum glass cover 6 is 10-20cm. After the high vacuum interface 7 is connected with the three-stage vacuum pump system, the interior of the vacuum glass cover 6 is pumped to a vacuum degree superior to 10 -6 And then used for the receiving test of the heat emission current. The tungsten sponge 8 has a pore size of 1-5 QUOTE />For storing heat-emitting active substances, the nickel cylinder 9 is hollow for containing heatWire 10, alumina insulation, and the like.
When the device is used, firstly, the water inlet 1 and the water outlet 2 of the water-cooled anode 3 are opened, then the high vacuum interface 7 is connected to a three-stage vacuum pump system to vacuumize the vacuum glass cover 6, and the vacuum degree in the glass cover is better than 10 -6 And in Pa, finally, heating the cathode 5 to a set temperature by using the hot wire 10, connecting the cathode 5 with a negative electrode, and starting the thermal emission or rapid life characteristic test of the cathode 5 after connecting the water-cooled anode 3 with a positive electrode.
In the description of the present utility model, it should be understood that the orientation or positional relationship indicated is based on the orientation or positional relationship shown in the drawings, and is merely for convenience in describing the present utility model and simplifying the description, and does not indicate or imply that the apparatus or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
In the present utility model, unless explicitly specified and defined otherwise, for example, it may be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intermediaries, or in communication with each other or in interaction with each other, unless explicitly defined otherwise, the meaning of the terms described above in this application will be understood by those of ordinary skill in the art in view of the specific circumstances.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. The high-power vacuum diode device is characterized by comprising a water-cooled anode (3), wherein the water-cooled anode (3) is of a cylindrical structure, a containing cavity is formed in the water-cooled anode, a water inlet (1) and a water outlet (2) are formed in the top end of the water-cooled anode (3), the water inlet (1) and the water outlet (2) are connected with a water circulation system, the bottom end of the water-cooled anode (3) is connected with a vacuum glass cover (6), a high vacuum interface (7) is arranged at the bottom end of the vacuum glass cover (6), and the high vacuum interface (7) is connected with a three-stage vacuum pump system; the water-cooled anode is characterized in that a cathode (5) is arranged between the water-cooled anode (3) and the vacuum glass cover (6), the cathode (5) comprises a nickel cylinder (9), a tungsten sponge body (8) is fixedly arranged at the top end of the nickel cylinder (9), the nickel cylinder (9) is hollow, a hot wire (10) is arranged inside the nickel cylinder, the hot wire (10) is connected with the negative electrode of a power supply, and the positive electrode of the power supply is connected with the water-cooled anode (3).
2. The high-power vacuum diode device according to claim 1, wherein the outer wall of the vacuum glass cover (6) is fixedly provided with a conductive core column (4).
3. The high-power vacuum diode device according to claim 1, wherein the vacuum glass cover (6) and the water-cooled anode (3) are connected through flanges.
4. The high-power vacuum diode device according to claim 1, wherein the diameters of the water inlet (1) and the water outlet (2) are 0.5-2.0cm.
5. A high power vacuum diode device according to claim 1, characterized in that the water cooled anode (3) is made of oxygen free copper.
6. A high power vacuum diode device according to claim 1, characterized in that the diameter of the water cooled anode (3) is 2.0-5.0cm and the height is 10-30cm.
7. A high power vacuum diode device according to claim 1, characterized in that the cathode (5) has a diameter of 1-5mm and a height of 5-10mm.
8. A high power vacuum diode device according to claim 1, characterized in that the vacuum glass envelope (6) has a diameter of 5.0-10.0cm and a height of 10-20cm.
9. A high power vacuum diode device according to claim 1, characterized in that the tungsten sponge (8) has a porosity of 1-5。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121034113.5U CN219759517U (en) | 2021-05-14 | 2021-05-14 | High-power vacuum diode device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121034113.5U CN219759517U (en) | 2021-05-14 | 2021-05-14 | High-power vacuum diode device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219759517U true CN219759517U (en) | 2023-09-26 |
Family
ID=88084124
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121034113.5U Active CN219759517U (en) | 2021-05-14 | 2021-05-14 | High-power vacuum diode device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219759517U (en) |
-
2021
- 2021-05-14 CN CN202121034113.5U patent/CN219759517U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205793592U (en) | The drive-in target manufactured for neutron tube | |
| US3267308A (en) | Thermionic energy converter | |
| CN102522298B (en) | Oval sheet beam electron gun | |
| CN102945778A (en) | Hollow cathode assembly | |
| JP5044005B2 (en) | Field emission device | |
| CN108878232B (en) | Hot cathode assembly for vacuum electronic devices | |
| CN202917423U (en) | A hollow cathode assembly | |
| CN219759517U (en) | High-power vacuum diode device | |
| CN103561535B (en) | A kind of array type micro-hole cathode air discharge plasma jet device | |
| US20110070518A1 (en) | Unit cell of solid oxide fuel cell and stack using the same | |
| CN107978771B (en) | Heat pipe type solid oxide fuel cell with high heat integration | |
| CN107591300A (en) | Spiral annular electron-beam-based cold cathode radiation source | |
| CN214043592U (en) | Vacuum diode device for contrast experiment | |
| CN110571438A (en) | Air cathode for microbial fuel cell and microbial fuel cell | |
| JPH02220346A (en) | Indirectly heated cathode for gas discharge tube | |
| US20110311902A1 (en) | Solid oxide fuel cell | |
| CN108766860B (en) | Cathode of long-life cold cathode magnetron | |
| CN108232336B (en) | Liquid metal battery with internal heating device and preparation method thereof | |
| US2667593A (en) | Electron tube | |
| CN221409200U (en) | Neutron target structure and neutron tube | |
| CN215771056U (en) | Cathode supporting structure for cathode grid assembly and cathode grid assembly | |
| CN206451680U (en) | A kind of HCN lasers novel cathode structure | |
| CN209962845U (en) | Transformer for gas analyzer and gas analyzer | |
| US2071849A (en) | Electrical discharge device | |
| US2098380A (en) | Gas discharge device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |