CN2528974Y - Water-ring vacuum pump - Google Patents
Water-ring vacuum pump Download PDFInfo
- Publication number
- CN2528974Y CN2528974Y CN 01255173 CN01255173U CN2528974Y CN 2528974 Y CN2528974 Y CN 2528974Y CN 01255173 CN01255173 CN 01255173 CN 01255173 U CN01255173 U CN 01255173U CN 2528974 Y CN2528974 Y CN 2528974Y
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- CN
- China
- Prior art keywords
- impeller
- motor
- water
- suction
- pump
- 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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- Structures Of Non-Positive Displacement Pumps (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The utility model relates to a water-ring vacuum obtaining device, in particular to a water-ring vacuum pump, which comprises a pump case, a pump cover and an impeller. The impeller is poisoned on the eccentric center of the pump case, and a suction-exhaust air disc is arranged on the end face of the impeller. A bearing of a motor which is coaxial with the impeller is axially positioned by tightly pressing. An air-exhaust valve sheet is arranged on the end face of the suction-exhaust air disc, and the sealing of the axis in the impeller and the motor adopts mechanical sealing. The impeller is in a front-curved stream line shape and directly nested on the axis of the motor, and eccentric water rings formed by the rotation of the impeller make volumes between vanes be periodically changed and achieve the processes of suction, compressing and exhausting. The water-power efficiency of a front-curved stream line-shaped vane is higher than that of a radial vane, the bearing positioning structure of the motor can make the impeller and the suction-exhaust air disc be kept small clearance without frication, and the mechanical sealing is more reliable than packing-gland sealing, thereby, the service life of the water-ring vacuum pump is prolonged.
Description
Technical field
The utility model relates to a kind of water ring pumping equipment, be meant a kind of vacuum distillation, drying that is applicable to chemical industry especially, the vacuum degassing of plastic industry, moulding, the vacuum concentration of food service industry, the Nash hytor of the vacuum dehydration of weaving and paper industry.
Background technique
The blade of traditional Nash hytor is straight lamellar body, being aplysia punctata distributes, and employing packing seal, pump and motor are by the coupling transmission, also need public base to connect into unit, therefore exist degree of vacuum to hang down shortcomings such as low with the speed of exhaust, that power consumption big, the impeller axial motion causes end wear, sealing is unreliable, working life is short.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of Nash hytor, its degree of vacuum and speed of exhaust height, low in energy consumption, reliable, the long service life of sealing.
The utility model solves the problems of the technologies described above the technological scheme that is adopted:
Compared with prior art, the utility model has the advantages that owing to adopt the streamlined impeller of front curve directly to be sleeved on the motor shaft, pump case and impeller are eccentric to be installed, motor bearings is located with the gland axial compression, intake and exhaust dish exhaust side end face at pump, exhaust valve plate is set, the mechanical seal of end face contact-type is set between impeller, connecting base and pump shaft.The eccentric water ring that forms when impeller rotates makes the continuous cyclically-varying of interlobate volume, realizes air-breathing, compression and exhaust process.The front curve streamline vane is than the hydraulic efficiency height of radial blade, and the motor bearings position structure can make between impeller and intake and exhaust dish and keep less gap and unlikely generation friction, and mechanical seal is more more reliable than packing seal, thereby has improved the working life of pump.
Description of drawingsFig. 1 is a longitudinal section of the present utility model tectonic maps.Fig. 2 is the utility model water ring vaccum pump fundamental diagram.
Embodiment
Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.
A kind of Nash hytor shown in Fig. 1～2, comprise pump case 5, pump cover 1 and impeller 6, impeller 6 is in the eccentric position of pump case 5, end face is provided with intake and exhaust dish 4, described impeller 4 and motor coaxle, motor bearings 10 axial compression location, described intake and exhaust dish 4 end faces are provided with exhaust valve plate 3, and mechanical seal 7 is adopted in the sealing of axle.It is streamlined that impeller 5 is front curve, directly is sleeved on the motor shaft 10.Also be provided with a bearing gland 12 with motor bearings 10 axial compression in electric motor end cap.Described mechanical seal is the end face contact-type mechanical seal 7 that is provided with between impeller 4, connecting base 8 and axle 10.In addition, embodiment of the present utility model also includes manger board 2 and slinger ring 9.
In the embodiment shown in fig. 1, impeller 6 directly is sleeved on the motor shaft 10, and bearing gland 12 has prevented the axial motion of motor shaft 10 impeller 6, and the exhaust side end face at intake and exhaust dish 4 is equipped with exhaust valve plate 3, and the spring force of mechanical seal 7 makes the end face reliable sealing.
In Fig. 2, pump case 5 is eccentric in impeller 6 relatively and installs, and the bottom keeps less gap, and during work, water ring is divided into the left and right sides with gas in the pump, forms the suction air cavity.
Owing to adopt the streamlined impeller of front curve directly to be sleeved on the motor shaft, pump case and impeller are eccentric to be installed, and motor bearings is with gland axial compression location, at the intake and exhaust dish exhaust side end face of pump, exhaust valve plate is set, the mechanical seal of end face contact-type is set between impeller, connecting base and pump shaft.The eccentric water ring that forms when impeller rotates makes the continuous cyclically-varying of interlobate volume, realizes air-breathing, compression and exhaust process.The front curve streamline vane is than the hydraulic efficiency height of radial blade, and the motor bearings position structure can make between impeller and intake and exhaust dish and keep less gap and unlikely generation friction, and mechanical seal is more more reliable than packing seal, thereby has improved the working life of pump.
Claims (5)
1, a kind of Nash hytor, comprise pump case, pump cover and impeller, impeller is in the eccentric position of pump case, end face is provided with the intake and exhaust dish, it is characterized in that: described impeller and motor coaxle, motor bearings axial compression location, described intake and exhaust dish end face is provided with exhaust valve plate, and mechanical seal is adopted in the sealing of axle.
2, a kind of Nash hytor as claimed in claim 1, it is characterized in that: it is streamlined that described impeller is front curve.
3, a kind of Nash hytor as claimed in claim 1 or 2, it is characterized in that: described impeller directly is sleeved on the motor shaft
4, a kind of Nash hytor as claimed in claim 1 is characterized in that: also be provided with a bearing gland with the motor bearings axial compression in electric motor end cap.
5, a kind of Nash hytor as claimed in claim 1 is characterized in that: the end face contact-type mechanical seal of described mechanical seal for being provided with between impeller, connecting base and axle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01255173 CN2528974Y (en) | 2001-12-06 | 2001-12-06 | Water-ring vacuum pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01255173 CN2528974Y (en) | 2001-12-06 | 2001-12-06 | Water-ring vacuum pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2528974Y true CN2528974Y (en) | 2003-01-01 |
Family
ID=33664363
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01255173 Expired - Fee Related CN2528974Y (en) | 2001-12-06 | 2001-12-06 | Water-ring vacuum pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2528974Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100441262C (en) * | 2005-07-11 | 2008-12-10 | 厦门大学 | Device and method for separating dissolved air in water |
| CN102032186A (en) * | 2009-09-30 | 2011-04-27 | 郜璋顺 | Vertical swirling liquid-ring vacuum pump |
| CN105121784A (en) * | 2013-04-19 | 2015-12-02 | 阿特利耶博世股份有限公司 | Vane-type rotary vacuum pump |
| CN113202764A (en) * | 2017-01-30 | 2021-08-03 | 株式会社荏原制作所 | Liquid-sealed vacuum pump |
| CN114812107A (en) * | 2022-04-19 | 2022-07-29 | 山东香果冻干机械科技有限公司 | Equipment and process method for keeping constant vacuum degree in food freeze-drying |
-
2001
- 2001-12-06 CN CN 01255173 patent/CN2528974Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100441262C (en) * | 2005-07-11 | 2008-12-10 | 厦门大学 | Device and method for separating dissolved air in water |
| CN102032186A (en) * | 2009-09-30 | 2011-04-27 | 郜璋顺 | Vertical swirling liquid-ring vacuum pump |
| CN105121784A (en) * | 2013-04-19 | 2015-12-02 | 阿特利耶博世股份有限公司 | Vane-type rotary vacuum pump |
| CN113202764A (en) * | 2017-01-30 | 2021-08-03 | 株式会社荏原制作所 | Liquid-sealed vacuum pump |
| CN113202764B (en) * | 2017-01-30 | 2023-02-28 | 株式会社荏原制作所 | Liquid-sealed vacuum pump |
| CN114812107A (en) * | 2022-04-19 | 2022-07-29 | 山东香果冻干机械科技有限公司 | Equipment and process method for keeping constant vacuum degree in food freeze-drying |
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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: 20030101 Termination date: 20101206 |