CN216926653U - Flow-rate-controllable vacuum pump dustproof device of energy dispersion X fluorescence spectrometer - Google Patents
Flow-rate-controllable vacuum pump dustproof device of energy dispersion X fluorescence spectrometer Download PDFInfo
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- CN216926653U CN216926653U CN202220166260.6U CN202220166260U CN216926653U CN 216926653 U CN216926653 U CN 216926653U CN 202220166260 U CN202220166260 U CN 202220166260U CN 216926653 U CN216926653 U CN 216926653U
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Abstract
The utility model relates to the technical field of X-ray fluorescence spectrometers, and particularly discloses a flow-rate-controllable vacuum pump dustproof device of an energy dispersion X-ray fluorescence spectrometer. The dustproof device of the controllable flow rate vacuum pump comprises a speed control valve with an air inlet end and an air outlet end, wherein the air outlet end is communicated with an air inlet of the vacuum pump through a pipe joint; the air inlet end is connected with a dust cover; one end of the dust cover, which is far away from the speed control valve, is provided with a horn-shaped opening; the inner bottom surface of the opening is provided with a through hole communicated with the air inlet end; the outer port of the opening is covered and connected with a filter assembly. The flow-rate-controllable vacuum pump dustproof device can effectively control the gas flow rate of the air inlet of the vacuum pump and has a good dustproof effect.
Description
Technical Field
The utility model relates to the technical field of X-ray fluorescence spectrometers, in particular to a flow-rate-controllable vacuum pump dustproof device of an energy dispersion X-ray fluorescence spectrometer.
Background
When an X fluorescence spectrometer is used for detection, since the light elements with the element period table serial number less than 20 cannot be detected under the atmospheric condition, a vacuum pump is required to be used for vacuumizing a sample chamber, and the light elements are detected under the vacuum state.
Among the present energy dispersion X fluorescence spectrometer, the vacuum pump is great at the air inlet air current in the twinkling of an eye of starting, not only produces sharp-pointed noise, can strike air inlet department dust simultaneously, because the air inlet of vacuum pump does not set up dust keeper, has the granule dust to get into the inside pollution that causes of instrument, influences vacuum pump life.
Therefore, there is a need to design a dust-proof device for a vacuum pump with controllable flow rate for an energy dispersive X-ray fluorescence spectrometer to solve the above problems.
Disclosure of Invention
The utility model aims to provide a flow-rate-controllable vacuum pump dustproof device of an energy dispersion X fluorescence spectrometer, which can effectively control the gas flow rate of a gas inlet of a vacuum pump and has a better dustproof effect.
In order to achieve the purpose, the utility model adopts the following technical scheme:
a controllable flow velocity vacuum pump dustproof device of an energy dispersion X fluorescence spectrometer comprises a velocity control valve with an air inlet end and an air outlet end, wherein the air outlet end is communicated with an air inlet of a vacuum pump through a pipe joint; the air inlet end is connected with a dust cover; one end of the dust cover, which is far away from the speed control valve, is provided with a horn-shaped opening; the inner bottom surface of the opening is provided with a through hole communicated with the air inlet end; the outer port of the opening is covered and connected with a filter assembly.
Furthermore, the filtering assembly comprises a partition plate, dustproof cotton and a cover plate which are sequentially arranged from inside to outside, and the cover plate is connected with the end face of the dustproof cover in a locking mode through a locking bolt; the baffle and the cover plate are all provided with a plurality of small holes in an array mode.
Furthermore, one side of the partition board, which is far away from the dustproof cotton, is provided with two positioning columns, and the outer end face of the opening is provided with two positioning holes which are respectively matched with the two positioning columns.
Furthermore, the dust cover is provided with a first positioning groove for placing the partition board and the dust cotton.
Furthermore, the dust cover is provided with a second positioning groove for placing the cover plate.
Further, the pipe joint is a double-end external thread straight-through pipe joint.
Further, the dust cover comprises a dust cover body and a connecting part coaxially connected to one end face of the dust cover body, and the other end face of the dust cover body is provided with the opening; the connecting portion is provided with the through hole, and the lateral surface is provided with the external screw thread.
Furthermore, the outer side surface of the connecting part is convexly provided with a limiting bulge.
The utility model has the beneficial effects that: according to the flow-rate-controllable vacuum pump dustproof device of the energy dispersion X-ray fluorescence spectrometer, the gas flow rate of the gas inlet of the vacuum pump can be effectively controlled through the speed control valve, so that the condition that the gas inlet generates gas flow impact at the moment of starting the vacuum pump is improved; the filter assembly can prevent particle dust from entering the vacuum pump, and has the advantages of simple structure, low cost and convenient installation and maintenance.
Drawings
FIG. 1 is a schematic structural diagram of a dust-proof device of a vacuum pump with controllable flow rate for an energy dispersive X-ray fluorescence spectrometer provided by the present invention;
FIG. 2 is a schematic perspective view of a dust-proof device of a vacuum pump with controllable flow rate for an energy dispersive X-ray fluorescence spectrometer according to the present invention;
fig. 3 is a cross-sectional view of the dust cap of fig. 1.
In the figure, 1-pipe joint; 2-a speed control valve; 3-a dust cover; 31-a dust cover body; 311-an opening; 312-locating holes; 313-a first positioning groove; 314-a second positioning groove; 32-a connecting portion; 321-a through hole; 322-a limit projection; 4-a filter assembly; 41-a separator; 411-locating posts; 42-dustproof cotton; 43-a cover plate; 44-a locking bolt; 100-a vacuum pump; 110-air inlet.
Detailed Description
The technical scheme of the utility model is further explained by the specific implementation mode in combination with the attached drawings.
As shown in fig. 1 to 3, a dust-proof device for a vacuum pump with controllable flow rate of an energy dispersion X-ray fluorescence spectrometer comprises a speed control valve 2 having an air inlet end and an air outlet end, wherein the air outlet end is communicated with an air inlet 110 of a vacuum pump 100 through a pipe joint 1; the air inlet end is connected with a dust cover 3; one end of the dust cover 3 far away from the speed control valve 2 is provided with a trumpet-shaped opening 311; the inner bottom surface of the opening 311 is provided with a through hole 321 communicated with the air inlet end; the outer port of the opening 311 is covered with the filter assembly 4.
In particular, in the dust-proof device for the controllable flow rate vacuum pump, the pipe joint 1 is preferably a double-end external thread straight-through pipe joint. The speed control valve 2 is preferably a standard type speed control valve of a straight-through type.
As shown in fig. 3, the dust cap 3 includes a dust cap body 31 and a connecting portion 32 coaxially connected to one end surface of the dust cap body 31. The opening 311 is opened at one end face of the dust cover body 31 far away from the connecting part 32; the through hole 321 opens in the connection portion 32. The outer side of the connection portion 32 is provided with an external thread which is screw-engaged with the internal thread of the air inlet of the speed control valve 2.
Furthermore, a limiting protrusion 322 is convexly arranged on the outer side surface of the connecting part 32, and the limiting protrusion 322 is used for limiting the air inlet end surface of the speed control valve 2.
In the dust-proof device of the controllable flow rate vacuum pump, a filter assembly 4 comprises a partition plate 41, dust-proof cotton 42 and a cover plate 43 which are sequentially arranged from inside to outside, and the cover plate 43 is in locking connection with the end face of a dust-proof cover 3 through a locking bolt 44; the partition plate 41 and the cover plate 43 are provided with a plurality of small holes in an array.
Furthermore, the dust cover 3 is provided with a first positioning groove 313 and a second positioning groove 314, the first positioning groove 313 is used for placing the partition board 41 and the dust wool 42, and the second positioning groove 314 is used for placing the cover plate 43.
Wherein, the partition plate 41 is provided with two positioning columns 411 on one side away from the dustproof cotton 42, and the outer end surface of the opening 311 is provided with two positioning holes 312 respectively matched with the two positioning columns 411.
The utility model relates to a flow-rate-controllable vacuum pump dustproof device of an energy dispersion X-ray fluorescence spectrometer, which is characterized in that when the device is installed, a pipe joint 2 is installed at an air inlet 110 of a vacuum pump 100, then an air outlet end of a speed control valve 2 is installed on the pipe joint 2, and the direction of a knob is adjusted when the device is installed; then the dust cover 3 is installed at the air inlet end of the speed control valve 2, then the partition plate 41, the dustproof cotton 42 and the cover plate 43 are sequentially placed, and finally the cover plate 43 is locked on the dust cover 3 by the locking bolt 44.
According to the flow-rate-controllable vacuum pump dustproof device of the energy dispersion X-ray fluorescence spectrometer, the gas flow rate of the gas inlet 110 of the vacuum pump 100 can be effectively controlled through the speed control valve 2, so that the condition that the gas inlet 110 generates gas flow impact at the moment of starting the vacuum pump 100 is improved; the filter assembly 4 can prevent particle dust from entering the vacuum pump 100, and has the advantages of simple structure, low cost and convenient installation and maintenance.
The technical principle of the present invention is described above in connection with specific embodiments. The description is made for the purpose of illustrating the principles of the utility model and should not be construed in any way as limiting the scope of the utility model. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without inventive effort, which would fall within the scope of the present invention.
Claims (8)
1. A controllable flow velocity vacuum pump dustproof device of an energy dispersion X fluorescence spectrometer is characterized by comprising a speed control valve (2) with an air inlet end and an air outlet end, wherein the air outlet end is communicated with an air inlet (110) of a vacuum pump (100) through a pipe joint (1); the air inlet end is connected with a dust cover (3); one end of the dust cover (3) far away from the speed control valve (2) is provided with a horn-shaped opening (311); the inner bottom surface of the opening (311) is provided with a through hole (321) communicated with the air inlet end; the outer port of the opening (311) is connected with a filter component (4) in a covering mode.
2. The controllable flow rate vacuum pump dustproof device according to claim 1, wherein the filter assembly (4) comprises a partition plate (41), dustproof cotton (42) and a cover plate (43) which are arranged from inside to outside in sequence, and the cover plate (43) is in locking connection with the end face of the dustproof cover (3) through a locking bolt (44); the partition plate (41) and the cover plate (43) are provided with a plurality of small holes in an array mode.
3. The flow-rate-controllable vacuum pump dustproof device as claimed in claim 2, wherein one side of the partition plate (41) far away from the dustproof cotton (42) is provided with two positioning columns (411), and the outer end face of the opening (311) is provided with two positioning holes (312) respectively matched with the two positioning columns (411).
4. The dust-proof device for the controlled flow rate vacuum pump according to claim 2 or 3, wherein the dust-proof cover (3) is provided with a first positioning groove (313) for placing the partition plate (41) and the dust cotton (42).
5. The controlled flow rate vacuum pump dust keeper of claim 4, characterized in that the dust keeper (3) is provided with a second positioning recess (314) for placing the cover plate (43).
6. Controlled flow rate vacuum pump dust protection device according to claim 1, characterised in that the pipe connection (1) is a double-ended male threaded through pipe connection.
7. The controlled flow rate vacuum pump dust-proof device according to claim 1, wherein the dust-proof cover (3) comprises a dust-proof cover body (31) and a connecting portion (32) coaxially connected to one end face of the dust-proof cover body (31), and the opening (311) is opened on the other end face of the dust-proof cover body (31); the connecting portion (32) is provided with the through hole (321), and an outer side face of the connecting portion is provided with an external thread.
8. The controlled flow rate vacuum pump dustproof device according to claim 7, wherein the outer side surface of the connecting part (32) is convexly provided with a limiting protrusion (322).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220166260.6U CN216926653U (en) | 2022-01-21 | 2022-01-21 | Flow-rate-controllable vacuum pump dustproof device of energy dispersion X fluorescence spectrometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220166260.6U CN216926653U (en) | 2022-01-21 | 2022-01-21 | Flow-rate-controllable vacuum pump dustproof device of energy dispersion X fluorescence spectrometer |
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| Publication Number | Publication Date |
|---|---|
| CN216926653U true CN216926653U (en) | 2022-07-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220166260.6U Active CN216926653U (en) | 2022-01-21 | 2022-01-21 | Flow-rate-controllable vacuum pump dustproof device of energy dispersion X fluorescence spectrometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216926653U (en) |
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2022
- 2022-01-21 CN CN202220166260.6U patent/CN216926653U/en active Active
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