CN202348666U - Improved slide-valve Roots vacuum unit - Google Patents
Improved slide-valve Roots vacuum unit Download PDFInfo
- Publication number
- CN202348666U CN202348666U CN 201120414184 CN201120414184U CN202348666U CN 202348666 U CN202348666 U CN 202348666U CN 201120414184 CN201120414184 CN 201120414184 CN 201120414184 U CN201120414184 U CN 201120414184U CN 202348666 U CN202348666 U CN 202348666U
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- CN
- China
- Prior art keywords
- valve
- pump
- slide
- vacuum unit
- eccentric wheel
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to an improved slide-valve Roots vacuum unit, which comprises a pump body, a pair of rotors and a pair of shafts, wherein the rotors and the shafts are arranged in the pump body, and the rotors are meshed. The improved slide-valve Roots vacuum unit is characterized in that the top part of the pump body is provided with an air inlet; the bottom part of the pump body is provided with an air outlet; the bottom part of the pump body is connected with a slide-valve pump through a corrugated pipe; the top part of the slide-valve pump is provided with a cooling water control device; the slide-valve pump is communicated with the cooling water control device; a rotating shaft, an eccentric wheel, a slide valve and an air release valve are arranged in the slide-valve pump; the eccentric wheel is arranged outside the rotating shaft; and the slide valve is arranged outside the eccentric wheel. The improved slide-valve Roots vacuum unit has the advantages that the structure is simple, the vacuum degree is high, the efficiency is high, the energy is saved, the sucking rate is high, the starting is comparatively easy under ordinary pressure, the performance is stable, the maintenance is simple, and the use is convenient.
Description
Technical field
The utility model relates to a kind of vacuum unit, relates in particular to a kind of improved guiding valve Roots vacuum unit.
Background technique
Vacuum pump is a requisite key equipment in the dipping systems, and its size that can be extracted into degree of vacuum has determined the quality of dipping effect, determines this quality of product; So it is high especially to vacuum requirements in process of production; Sliding valve vacuum pump is widely used in transformer, electric wire, the vacuum impregnation of capacitor, the vacuum drying of power industry usually, also can be used for industries such as vacuum coating, smelting, heat treatment, electro-optical source, but the power consumption of existing sliding valve vacuum pump is bigger; Degree of vacuum is lower; Rate of air sucked in required is little, and for addressing the above problem, the spy provides a kind of new technological scheme.
The model utility content
The purpose of the utility model provides a kind of improved guiding valve Roots vacuum unit.
The technological scheme that the utility model adopts is:
A kind of improved guiding valve Roots vacuum unit comprises the pump housing and a pair of rotor and axle, said a pair of rotor engaged be located in the pump housing; Said pump housing top has suction port; Said pump housing bottom has relief opening, and said pump housing bottom links to each other with slide valve pump through bellows, and said slide valve pump top is provided with the cooling water control device; Said slide valve pump is communicated with the cooling water control device; Be provided with rotating shaft, eccentric wheel, guiding valve and outlet valve in the said slide valve pump, said rotating shaft outside is provided with eccentric wheel, and said eccentric wheel outside is provided with guiding valve.
Be provided with valve between said relief opening and the bellows.
Be provided with outlet valve between said slide valve pump and cooling water control device.
The utility model has the advantages that: simple in structure, degree of vacuum is high, and energy-efficient, rate of air sucked in required is big, under normal pressure, starts than is easier to, and stable performance is safeguarded simple, easy to use.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail.
Fig. 1 is the structural representation of the utility model.
Wherein: 1, the pump housing, 2, rotor, 3, axle, 4, suction port, 5, relief opening, 6, bellows, 7, slide valve pump, 8, the cooling water control device, 9, rotating shaft, 10, eccentric wheel, 11, guiding valve, 12, outlet valve, 13, valve.
Embodiment
As shown in Figure 1, a kind of improved guiding valve Roots vacuum unit of the utility model comprises the pump housing 1 and a pair of rotor 2 and axle 3 be located in the pump housing 1, a pair of rotor 2 engagements; The pump housing 1 top has suction port 4, and the pump housing 1 bottom has relief opening 5, and the pump housing 1 bottom links to each other with slide valve pump 7 through bellows 6, is provided with valve 13 between relief opening 5 and the bellows 6; Slide valve pump 7 tops are provided with cooling water control device 8, and slide valve pump 7 is communicated with cooling water control device 8, are provided with rotating shaft 9, eccentric wheel 10, guiding valve 11 and outlet valve 12 in the slide valve pump 7, and rotating shaft 9 outsides are provided with eccentric wheel 10; Eccentric wheel 10 outsides are provided with guiding valve 11, and 8 in slide valve pump 7 and cooling water control device are provided with outlet valve 12, and be simple in structure, and degree of vacuum is high; Energy-efficient, rate of air sucked in required is big, under normal pressure, starts than being easier to; Stable performance is safeguarded simple, easy to use.
Claims (3)
1. an improved guiding valve Roots vacuum unit comprises the pump housing and a pair of rotor and axle, said a pair of rotor engaged be located in the pump housing; It is characterized in that: said pump housing top has suction port; Said pump housing bottom has relief opening, and said pump housing bottom links to each other with slide valve pump through bellows, and said slide valve pump top is provided with the cooling water control device; Said slide valve pump is communicated with the cooling water control device; Be provided with rotating shaft, eccentric wheel, guiding valve and outlet valve in the said slide valve pump, said rotating shaft outside is provided with eccentric wheel, and said eccentric wheel outside is provided with guiding valve.
2. a kind of improved guiding valve Roots vacuum unit according to claim 1 is characterized in that: be provided with valve between said relief opening and the bellows.
3. a kind of improved guiding valve Roots vacuum unit according to claim 1 is characterized in that: be provided with outlet valve between said slide valve pump and cooling water control device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120414184 CN202348666U (en) | 2011-10-27 | 2011-10-27 | Improved slide-valve Roots vacuum unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120414184 CN202348666U (en) | 2011-10-27 | 2011-10-27 | Improved slide-valve Roots vacuum unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202348666U true CN202348666U (en) | 2012-07-25 |
Family
ID=46537674
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120414184 Expired - Fee Related CN202348666U (en) | 2011-10-27 | 2011-10-27 | Improved slide-valve Roots vacuum unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202348666U (en) |
-
2011
- 2011-10-27 CN CN 201120414184 patent/CN202348666U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120725 Termination date: 20121027 |