CN210050041U - Oil return device of oilless screw air compressor - Google Patents
Oil return device of oilless screw air compressor Download PDFInfo
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- CN210050041U CN210050041U CN201920632123.5U CN201920632123U CN210050041U CN 210050041 U CN210050041 U CN 210050041U CN 201920632123 U CN201920632123 U CN 201920632123U CN 210050041 U CN210050041 U CN 210050041U
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- oil
- return device
- oil return
- air compressor
- screw air
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Abstract
Oil return device of oilless screw air compressor machine includes the oil tank, locates the oil and gas separator of oil tank upper end, its characterized in that: the oil-gas separator is communicated with the oil tank through an oil return pipe, the oil return pipe is provided with a one-way valve, and the one-way valve enables oil separated by the oil-gas separator to flow to the oil tank only in one way through the one-way valve; the oil return device is characterized by also comprising a forced return device communicated with the oil return pipe, and oil in the oil return pipe flows back to the oil tank through the forced return device. The utility model discloses be provided with forced reflux unit for oil in the return pipe can flow back to the oil tank smoothly.
Description
Technical Field
The utility model relates to an oil return device of oil-free screw air compressor.
Background
Because the screw of the oil-free air compressor has no screw oil, the gear and the bearing need to be lubricated by oil, and the inside of the oil tank needs to have an air pressure to exhaust outwards, namely, the inside of the oil tank has compressed air, and because the pressure in the oil tank is higher than the outside pressure, the oil is difficult to return to the inside of the oil tank under the normal state.
Disclosure of Invention
In order to overcome the above-mentioned not enough of current oil return device that does not have oily screw air compressor machine, the utility model provides a better oil return effect's oil return device that does not have oily screw air compressor machine.
The technical proposal of the utility model for solving the technical problem is that: the oil return device of the oil-free screw air compressor comprises an oil tank and an oil-gas separator arranged at the upper end of the oil tank, wherein the oil-gas separator is communicated with the oil tank through an oil return pipe;
the oil return device is characterized by also comprising a forced return device communicated with the oil return pipe, and oil in the oil return pipe flows back to the oil tank through the forced return device.
Furthermore, the forced backflow device is a blowing device.
Further, the blowing device is positioned behind the one-way valve.
Further, the blowing device is a vacuum generator.
Further, the oil tank comprises an inner layer, a leakage-proof layer wrapped outside the inner layer, and a protective layer wrapped outside the leakage-proof layer.
The beneficial effects of the utility model reside in that: and a forced backflow device is arranged, so that the oil in the oil return pipe can smoothly flow back to the oil tank.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1, oil-free screw air compressor's oil returning device includes oil tank 1, locates oil and gas separator 2 of 1 upper end of oil tank, oil and gas separator 2 with oil tank 1 between through returning oil pipe 3 UNICOM, oil pipe 3 that returns on be equipped with check valve 4, check valve 4 make the oil that separates down through oil and gas separator can only pass through 4 one-way flow direction oil tanks 1 of check valve.
The oil return device also comprises a forced return device 5 communicated with the oil return pipe 4, and oil in the oil return pipe flows back to the oil tank through the forced return device 5. The forced backflow device 5 can adopt various forms, and a better mode is to adopt a blowing device, and the purpose of forced oil return is achieved by blowing air into an oil return pipe, of course, the blowing direction of the blowing device is along the direction of oil backflow to the oil tank 1, and finally, the blowing device is arranged behind the one-way valve 4, and the rear direction refers to the rear direction along the flowing direction of the oil. In this embodiment, the blowing device uses a vacuum generator, and blows air into the return pipe 3 through the vacuum generator, that is, the exhaust port of the vacuum generator is communicated with the return pipe 3, thereby achieving the purpose of forced return. Of course, the forced reflux device can also adopt other air blowing devices, such as an air pump, a small-sized blower and the like.
In this embodiment, the fuel tank 1 includes an inner layer, a leakage-proof layer wrapped outside the inner layer, and a protective layer wrapped outside the leakage-proof layer. The inner layer is made of metal materials generally, the anti-leakage layer can be made of materials such as asbestos and the like, and the protective layer is made of metal materials generally.
Claims (6)
1. Oil return device of oilless screw air compressor machine includes the oil tank, locates the oil and gas separator of oil tank upper end, its characterized in that: the oil-gas separator is communicated with the oil tank through an oil return pipe, the oil return pipe is provided with a one-way valve, and the one-way valve enables oil separated by the oil-gas separator to flow to the oil tank only in one way through the one-way valve;
the oil return device is characterized by also comprising a forced return device communicated with the oil return pipe, and oil in the oil return pipe flows back to the oil tank through the forced return device.
2. The oil return device of an oil-free screw air compressor as claimed in claim 1, wherein: the forced backflow device is a blowing device.
3. The oil return device of an oil-free screw air compressor as claimed in claim 2, wherein: the blowing device is positioned behind the one-way valve.
4. The oil return device of an oil-free screw air compressor as claimed in claim 2 or 3, wherein: the blowing device is a vacuum generator.
5. An oil return device of an oil-free screw air compressor as claimed in any one of claims 1 to 3, wherein: the oil tank comprises an inner layer, a leakage-proof layer wrapped outside the inner layer, and a protective layer wrapped outside the leakage-proof layer.
6. The oil return device of an oil-free screw air compressor as claimed in claim 4, wherein: the oil tank comprises an inner layer, a leakage-proof layer wrapped outside the inner layer, and a protective layer wrapped outside the leakage-proof layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920632123.5U CN210050041U (en) | 2019-05-06 | 2019-05-06 | Oil return device of oilless screw air compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920632123.5U CN210050041U (en) | 2019-05-06 | 2019-05-06 | Oil return device of oilless screw air compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210050041U true CN210050041U (en) | 2020-02-11 |
Family
ID=69380884
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920632123.5U Active CN210050041U (en) | 2019-05-06 | 2019-05-06 | Oil return device of oilless screw air compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210050041U (en) |
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2019
- 2019-05-06 CN CN201920632123.5U patent/CN210050041U/en active Active
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