CN216278502U - Micro-oil rotary-vane type vacuumizing device - Google Patents
Micro-oil rotary-vane type vacuumizing device Download PDFInfo
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- CN216278502U CN216278502U CN202122622769.5U CN202122622769U CN216278502U CN 216278502 U CN216278502 U CN 216278502U CN 202122622769 U CN202122622769 U CN 202122622769U CN 216278502 U CN216278502 U CN 216278502U
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Abstract
The application provides a micro-oil rotary vane type vacuumizing device which comprises a rotary vane vacuum pump and is characterized in that the output end of a gas path of the rotary vane vacuum pump is connected with an oil gas barrel, and the output end of the oil path is provided with a temperature control valve; an oil-gas separator is arranged in the oil-gas barrel, an exhaust port is connected with a cooler, and an oil delivery port is connected with the oil path input end of the rotary vane vacuum pump; the temperature control valve comprises three outlets which are respectively connected with the input end of the oil way, the oil inlet and the oil outlet of the cooler. According to the technical scheme that this application embodiment provided, oil circuit output through at the sliding vane vacuum pump sets up the temperature-sensing valve, can discharge the play oil through three kinds of modes, the characteristic of cooperation temperature-sensing valve, three kinds of discharge modes pass through the oil temperature control and switch, when the oil temperature is cooler, it can get into the sliding vane vacuum pump once more to go out oil, along with the oil temperature risees, partial play oil can enter into the cooler and cool down, thereby the oil temperature control with in the sliding vane vacuum pump is in appointed within range, when the temperature of going out oil is too high, it can all enter into the cooler and circulate.
Description
Technical Field
The application relates to the technical field of vacuum pumps, in particular to a micro-oil rotary-vane type vacuumizing device.
Background
The vacuum pump refers to a device or equipment for obtaining vacuum by pumping a pumped container by using a mechanical, physical, chemical or physicochemical method. In general, a vacuum pump is a device for improving, generating and maintaining a vacuum in a certain closed space by various methods.
The sliding vane rotary vacuum pump needs to be matched with lubricating oil for sealing, the temperature of the lubricating oil can influence the effect of the sliding vane rotary vacuum pump and even the service life of the sliding vane rotary vacuum pump, and the problem needs to be solved urgently.
Disclosure of Invention
In view of the above-mentioned drawbacks and deficiencies of the prior art, it would be desirable to provide a micro-oil rotary-vane vacuum pumping device.
The application provides a micro-oil rotary vane type vacuumizing device which comprises a rotary vane vacuum pump and is characterized in that the gas path output end of the rotary vane vacuum pump is connected with an oil gas barrel, and the oil path output end is provided with a temperature control valve; an oil-gas separator is arranged inside the oil-gas barrel, an exhaust port is connected with a cooler, and an oil delivery port is connected with the oil path input end of the rotary vane vacuum pump; the temperature control valve comprises three outlets which are respectively connected with the input end of the oil way, the oil inlet and the oil outlet of the cooler.
Further, the temperature control valve comprises a valve body; the valve body is provided with an inlet along the axial direction and three outlets along the radial direction; the three outlets are arranged along the axial direction of the valve body.
Further, a valve core is slidably mounted in the valve body; two groups of butt joint holes are arranged on the valve core along the radial direction, and concentric holes communicated with the butt joint holes are arranged at one end of the valve core close to the inlet along the axial direction.
Further, a valve core is slidably mounted in the valve body; two groups of through holes are arranged on the valve core along the radial direction, and one end of the inner part close to the inlet is provided with concentric holes along the axial direction; a partition is arranged between the two through holes; the concentric bore is in communication with the through-bore proximate one end of the inlet.
Furthermore, a temperature sensing element is also arranged in the valve body; the temperature sensing element is positioned at one end of the valve core far away from the inlet and is abutted against the valve core.
The application has the advantages and positive effects that:
this technical scheme sets up the temperature-sensing valve through the oil circuit output at the sliding vane vacuum pump, can discharge the play oil through three kinds of modes, the characteristic of cooperation temperature-sensing valve, three kinds of discharge modes are passed through the oil temperature control and are switched, when the oil temperature is cooler, it can get into the sliding vane vacuum pump once more to go out oil, along with the oil temperature risees, some play oil can enter into the cooler and cool down, thereby control the oil temperature in the sliding vane vacuum pump in the appointed scope, when the play oil high temperature, it can all enter into the cooler and circulate.
Drawings
Fig. 1 is a schematic structural diagram of a micro-oil rotary-vane vacuum pumping device provided in an embodiment of the present application;
fig. 2 is a schematic structural diagram of a temperature control valve of a micro oil rotary vane type vacuum pumping device provided in an embodiment of the present application.
The text labels in the figures are represented as: 100-a rotary vane vacuum pump; 200-oil gas barrel; 210-an oil-gas separator; 300-a cooler; 400-a valve body; 410-a valve core; 420-a spring; 430-temperature sensing element.
Detailed Description
The following detailed description of the present application is given for the purpose of enabling those skilled in the art to better understand the technical solutions of the present application, and the description in this section is only exemplary and explanatory, and should not be taken as limiting the scope of the present application in any way.
Referring to fig. 1-2, the present embodiment provides a micro-oil rotary-vane vacuum pumping apparatus, which includes a rotary-vane vacuum pump 100; an air path and an oil path are arranged in the rotary vane vacuum pump 100; the input end of the gas circuit is connected with the device to be vacuumized, and the output end of the gas circuit is connected with the oil-gas barrel 200; an oil-gas separator 210 is arranged in the oil-gas barrel 200 and used for performing oil-gas separation on exhaust gas of the rotary vane vacuum pump 100 to prevent air pollution; the oil-gas barrel 200 is also connected to an input end of an oil path for supplying oil to the rotary vane vacuum pump 100.
In a preferred embodiment, the output end of the oil way is provided with a temperature control valve; three outlets are arranged on the temperature control valve; the first outlet is connected with the input end of the oil way and is used for discharging oil at a lower temperature; the second outlet is connected with the oil inlet of the cooler 300 and is used when the oil outlet temperature is higher; the third outlet is connected with the oil outlet of the cooler 300, can be communicated with the first outlet, and is used for supplying oil to the rotary vane vacuum pump when the oil outlet temperature is higher.
Preferably, the thermo-valve includes a valve body 400; an inlet is formed in the valve body 400 along the axial direction and is connected with the output end of the oil path; the three outlets are respectively arranged along the radial direction of the valve body 400 and are arranged on the valve body 400 along the axial direction.
Preferably, a valve core 410 is slidably mounted in the valve body 400; two groups of through holes are arranged on the valve core 410 along the radial direction, and one end of the inner part close to the inlet is provided with concentric holes along the axial direction; a partition is arranged between the two through holes, a first through hole is arranged at one end close to the inlet, and a second through hole is arranged at one end far away from the inlet; the first through hole is communicated with the concentric hole.
Preferably, a spring 420 is further arranged in the valve body 400; a spring 420 is located at one end of the spool 410 near the inlet; the valve body 400 is provided with a matching inner edge for support corresponding to the spring 420.
Preferably, a temperature sensing element 430 is further disposed in the valve body 400; the temperature sensing element 430 is located at an end of the valve element 410 away from the inlet, and abuts against the valve element 410.
The working process is as follows:
when the oil outlet temperature is lower, the valve core is pressed at the other end of the valve body by the acting force of the spring, at the moment, the valve core can block the second outlet and the third outlet, and the first outlet is communicated with the first through hole, so that the oil outlet enters the rotary vane vacuum pump again.
When the oil outlet temperature is higher, the temperature sensing element is heated to expand to push the valve core to compress the spring, at the moment, the butt joint surface of the first through hole and the first outlet is reduced, the second outlet is communicated with the first through hole, meanwhile, the second through hole is also communicated with the third outlet, part of the oil outlet is directly returned to the rotary vane vacuum pump, and the other part of the oil outlet is returned to the rotary vane vacuum pump after passing through the cooler.
When the oil outlet temperature exceeds the standard, the spring is completely compressed, the first outlet is disconnected with the first through hole, the second outlet is completely butted with the first through hole, and the third outlet is completely butted with the second through hole; and the oil is discharged and enters the cooler completely.
The principles and embodiments of the present application are explained herein using specific examples, which are provided only to help understand the method and the core idea of the present application. The foregoing is only a preferred embodiment of the present application, and it should be noted that there are objectively infinite specific structures due to the limited character expressions, and it will be apparent to those skilled in the art that a plurality of modifications, decorations or changes may be made without departing from the principle of the present invention, and the technical features described above may be combined in a suitable manner; such modifications, variations, combinations, or adaptations of the invention in other contexts without modification may be viewed as within the scope of the present application.
Claims (5)
1. A micro-oil rotary-vane type vacuum pumping device comprises a rotary-vane vacuum pump (100), and is characterized in that the gas path output end of the rotary-vane vacuum pump (100) is connected with an oil-gas barrel (200), and the temperature control valve is installed at the oil path output end; an oil-gas separator (210) is arranged inside the oil-gas barrel (200), an exhaust port is connected with a cooler (300), and an oil delivery port is connected with an oil path input end of the rotary vane vacuum pump (100); the temperature control valve comprises three outlets which are respectively connected with the input end of the oil way, the oil inlet and the oil outlet of the cooler (300).
2. The micro-oil rotary vane pump vacuum device according to claim 1, wherein the thermo valve comprises a valve body (400); an inlet is formed in the valve body (400) along the axial direction, and three outlets are formed in the valve body (400) along the radial direction; the three outlets are arranged along the axial direction of the valve body (400).
3. The micro-oil rotary vane vacuum pumping device according to claim 2, wherein a valve core (410) is slidably mounted in the valve body (400); two groups of through holes are arranged on the valve core (410) along the radial direction, and one end of the inner part close to the inlet is provided with concentric holes along the axial direction; a partition is arranged between the two through holes; the concentric bore is in communication with the through-bore proximate one end of the inlet.
4. The micro-oil rotary vane vacuum pumping device according to claim 3, wherein a spring (420) is further arranged in the valve body (400); the spring (420) is positioned at one end of the valve core (410) close to the inlet; and a matched supporting inner edge is arranged on the valve body (400) corresponding to the spring (420).
5. The micro-oil-spinning type vacuum pumping device according to claim 3, characterized in that a temperature sensing element (430) is further arranged in the valve body (400); the temperature sensing element (430) is positioned at one end of the valve core (410) far away from the inlet and abuts against the valve core (410).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122622769.5U CN216278502U (en) | 2021-10-29 | 2021-10-29 | Micro-oil rotary-vane type vacuumizing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122622769.5U CN216278502U (en) | 2021-10-29 | 2021-10-29 | Micro-oil rotary-vane type vacuumizing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216278502U true CN216278502U (en) | 2022-04-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122622769.5U Active CN216278502U (en) | 2021-10-29 | 2021-10-29 | Micro-oil rotary-vane type vacuumizing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216278502U (en) |
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2021
- 2021-10-29 CN CN202122622769.5U patent/CN216278502U/en active Active
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