CN203867905U - Roots vacuum pump with noise reduction function - Google Patents
Roots vacuum pump with noise reduction function Download PDFInfo
- Publication number
- CN203867905U CN203867905U CN201420128645.9U CN201420128645U CN203867905U CN 203867905 U CN203867905 U CN 203867905U CN 201420128645 U CN201420128645 U CN 201420128645U CN 203867905 U CN203867905 U CN 203867905U
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- China
- Prior art keywords
- sealing layer
- pump
- layer
- vacuum pump
- pump housing
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- Expired - Fee Related
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Abstract
The utility model discloses a roots vacuum pump with a noise reduction function. The vacuum pump comprises a pump body, sealing layers and rotors, wherein the sealing layers comprise a sealing layer I and a sealing layer II, the sealing layer I adopts a vacuum plating layer, and the sealing layer II adopts a high polymer material layer. The roots vacuum pump has the benefits as follows: the sealing layer I and the sealing layer II, namely, the vacuum plating layer and the high polymer material layer, are arranged on the inner side of the pump body and the outer sides of the rotors respectively, so that noise produced by mechanical operation in the pump body is effectively isolated; meanwhile, a silencer is mounted at a gas outlet, so that noise produced by air flow is reduced; and according to the provided roots vacuum pump, the noise reduction effect is excellent, the physical and psychological health of an operator cannot be influenced while noise pollution is reduced, and the environment-friendly effect is good.
Description
Technical field
The utility model relates to field of vacuum, relates in particular to a kind of Roots pump that reduces noise.
Background technique
The smelting that Roots pump is widely used in vacuum metallurgy is degassed, and in the industries such as rolling, chemical industry, food, medicine, application is very extensive.Roots pump is to lean on the pushing of a pair of leaf rotor synchronous, counterrotating in pump chamber to be used for mobile gas and to realize the vacuum pump of bleeding.Thereby, Roots pump is in operation and while easily forming aerodynamic noise, especially High Pressure Difference, discharging directly into atmosphere, produces high strength noise, through suction port and air outlet to external radiation, environmental pollution is very serious, operator healthy is caused to very large impact simultaneously.Therefore, need a kind of new technological scheme to address the above problem.
Summary of the invention
The utility model provides a kind of Roots pump that reduces noise.
The technical solution adopted in the utility model: a kind of Roots pump that reduces noise comprises the pump housing, sealing layer and rotor, sealing layer comprises sealing layer I and sealing layer II, and wherein sealing layer I is vacuum-coating, and sealing layer II is polymer material layer.
Inner side at the pump housing has one deck sealing layer I, upper end at the pump housing is provided with suction port, pump housing lower end is provided with air outlet, a side in pump housing upper end is also provided with bypass valve, and this bypass valve lower end is fixed with seal ring, and pump body is provided with rotor, the coated one deck sealing layer II in outside of rotor, on the position of lower end, air outlet, be provided with silencing apparatus, this silencing apparatus is comprised of sound-absorbing porous material and fixed support, is all on the position of giving vent to anger of air outlet is also provided with cooling unit in the lower end of this silencing apparatus.
The beneficial effects of the utility model: in the inner side of the pump housing and rotor outside is respectively equipped with sealing layer I and sealing layer II is vacuum-coating and polymer material layer, the isolated noise producing because of the machine operation of pump body effectively, simultaneously, on the position of air outlet, fix a silencer, reduced the noise producing because of Air Flow, the effect that Roots pump provided by the invention reduces noise is good, when having reduced noise pollution, can not affect operator's physical and mental health, environment protection effect is good.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Wherein, 1, the pump housing, 2, suction port, 3, air outlet, 4, rotor, 5, bypass valve, 6, seal ring, 7, sealing layer I, 8, sealing layer II, 9, cooling unit, 10, sound-absorbing porous material, 11, fixed support.
Embodiment
As shown in Figure 1, a kind of Roots pump that reduces noise comprises the pump housing 1, sealing layer and rotor 4, and sealing layer comprises sealing layer I 7 and sealing layer II 8, and wherein sealing layer I 7 is vacuum-coating, and sealing layer II 8 is polymer material layer.
Inner side at the pump housing 1 has one deck sealing layer I 7, in the upper end of the pump housing 1, be provided with suction port 2, the pump housing 1 lower end is provided with air outlet 3, a side in the pump housing 1 upper end is also provided with bypass valve 5, these bypass valve 5 lower ends are fixed with seal ring 6, the pump housing 1 inside is provided with rotor 4, the coated one deck sealing layer II 8 in outside of rotor 4, on the position of 3 lower ends, air outlet, be provided with silencing apparatus, this silencing apparatus is comprised of sound-absorbing porous material 10 and fixed support 11, is all on the position of giving vent to anger of air outlet 3 is also provided with cooling unit 9 in the lower end of this silencing apparatus.
Beneficial effect: in the inner side of the pump housing 1 and rotor outside is respectively equipped with sealing layer I 7 and sealing layer II 8 is vacuum-coating and polymer material layer, the isolated noise producing because of the machine operation of pump body effectively, simultaneously, on the position of air outlet 3, fix a silencer, reduced the noise producing because of Air Flow, the effect that Roots pump provided by the invention reduces noise is good, can not affect operator's physical and mental health when having reduced noise pollution, and environment protection effect is good.
Claims (4)
1. a Roots pump that reduces noise, it is characterized in that: this vacuum pump comprises the pump housing, sealing layer and rotor, described sealing layer comprises sealing layer I and sealing layer II, described pump housing inner side is with sealing layer I, described pump housing upper end is provided with suction port, described pump housing lower end is provided with air outlet, described pump housing upper end is also provided with bypass valve, described bypass valve lower end is fixed with seal ring, described pump body is provided with rotor, the coated sealing layer II in described rotor outside, described air outlet is provided with silencing apparatus, and described silencing apparatus lower end is provided with cooling unit.
2. a kind of Roots pump that reduces noise according to claim 1, is characterized in that: described silencing apparatus is comprised of sound-absorbing porous material and fixed support.
3. a kind of Roots pump that reduces noise according to claim 1, is characterized in that: described sealing layer I is vacuum-coating.
4. a kind of Roots pump that reduces noise according to claim 1, is characterized in that: described sealing layer II is polymer material layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420128645.9U CN203867905U (en) | 2014-03-21 | 2014-03-21 | Roots vacuum pump with noise reduction function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420128645.9U CN203867905U (en) | 2014-03-21 | 2014-03-21 | Roots vacuum pump with noise reduction function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203867905U true CN203867905U (en) | 2014-10-08 |
Family
ID=51648865
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420128645.9U Expired - Fee Related CN203867905U (en) | 2014-03-21 | 2014-03-21 | Roots vacuum pump with noise reduction function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203867905U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106246557A (en) * | 2016-08-17 | 2016-12-21 | 中国航天空气动力技术研究院 | Ventilation type vacuum pump set noise-and-vibration-reduction mechanism |
-
2014
- 2014-03-21 CN CN201420128645.9U patent/CN203867905U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106246557A (en) * | 2016-08-17 | 2016-12-21 | 中国航天空气动力技术研究院 | Ventilation type vacuum pump set noise-and-vibration-reduction mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141008 Termination date: 20170321 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |