CN203867911U - Magnetic pump with auxiliary impeller - Google Patents
Magnetic pump with auxiliary impeller Download PDFInfo
- Publication number
- CN203867911U CN203867911U CN201420314304.0U CN201420314304U CN203867911U CN 203867911 U CN203867911 U CN 203867911U CN 201420314304 U CN201420314304 U CN 201420314304U CN 203867911 U CN203867911 U CN 203867911U
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- CN
- China
- Prior art keywords
- pump
- impeller
- sliding bearing
- magnet rotor
- hole
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- Expired - Fee Related
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Abstract
The utility model discloses a magnetic pump comprising a pump body, an impeller, a pump cover, a distance sleeve, a coupling bracket, an outer magnetic rotor, an inner magnetic rotor, a pump shaft, a sliding bearing pedestal and a sliding bearing. The pump body is hermetically connected with the pump cover and the coupling bracket, and a liquid inlet is formed in the pump cover. The impeller and the inner magnetic rotor are mounted at two ends of the pump shaft respectively, and the pump shaft is mounted to the sliding bearing pedestal through the sliding bearing. The space sleeve is located between the outer magnetic rotor and the inner magnetic rotor and fixed to the pump cover, an auxiliary impeller is arranged on the rear end face of the inner magnetic rotor, the pump shaft is provided with an axial through hole and a radial semi-through hole, and the axial through hole is communicated with an impeller inlet. Liquid flow in an inner cavity of the distance sleeve passes through the axial through hole and the radial semi-through hole acceleratedly through acceleration and pressurization of the auxiliary impeller, the sliding bearing is lubricated and cooled, friction heat is brought away quickly, the magnetic pump is suitable for delivering easy-to-vaporize media, and service life of the sliding bearing is prolonged.
Description
Technical field
The utility model relates to magnetic drive pump technical field, specifically a kind of magnetic drive pump with auxiliary impeller.
Background technique
Magnetic drive pump is to utilize magnetomotive to carry out the unprssurized pump of drives impeller, is widely used in field of petrochemical industry, is used for carrying inflammable, explosive, volatile and valuable, poisonous medium.Traditional magnetic drive pump inside, the frictional heat that on pump shaft, sliding bearing produces, and the eddy current heat that between inside and outside magnet rotor, metal separation sleeve produces, conventionally all rely on the inner loop that is transferred medium be lubricated cooling and take away, its liquid stream is to rely on the high pressure liquid stream of introducing from pump chamber---to get back to low-pressure inlet through interior magnet rotor and separation sleeve gap--from impeller shaft through hole--.Obviously, this circulation of being undertaken by the pressure reduction of liquid stream is unfavorable for the conveying of easy vaporized media and the lubrication of sliding bearing, has affected the working life of bearing, the demand that can not meet petroleum chemical industry and carry some easy vaporized medias.
Model utility content
The utility model is for the problem of above-mentioned existence, provide a kind of make medium in the inner loop of magnetic drive pump all the time in high pressure, at a high speed under, cavitation-resistance can better be with the magnetic drive pump of auxiliary impeller.
The utility model for achieving the above object, takes following technological scheme to be achieved:
With a magnetic drive pump for auxiliary impeller, comprise the pump housing, impeller, pump cover, separation sleeve, hitch, outer magnet rotor, interior magnet rotor, pump shaft, plain bearing housing and sliding bearing; The described pump housing be tightly connected pump cover and hitch, have inlet opening on described pump cover; Described pump shaft two ends are separately installed with impeller and interior magnet rotor, and are installed on plain bearing housing by sliding bearing; Described separation sleeve is between outer magnet rotor and interior magnet rotor and be fixed on pump cover, and described interior magnet rotor ear end face is provided with auxiliary impeller, and described pump shaft is provided with axial hole and half through hole radially, and described axial hole communicates with impeller eye.
Described axial hole, in the reduced of impeller end, can increase pressure, and accelerating medium is passed through, and is beneficial to and carries out cooling to sliding bearing.
Described auxiliary impeller is five straight radial blades.
When work, the high-pressure medium that the liquid stream of separation sleeve inner chamber produces due to the High Rotation Speed of the auxiliary impeller of interior magnet rotor end face, acceleration enters axial hole and half through hole radially, not only take away fast the frictional heat of bearing and the eddy current heat of separation sleeve, further improved the lubrication of sliding bearing simultaneously.Therefore, this endless form that makes the inner high pressure liquid stream producing of magnetic drive pump, the conveying that can effectively solve easy vaporized media has improved the working life of bearing simultaneously, thereby has improved the defect of traditional magnetic drive pump inside from high pressure to low pressure recycle mode.
The inner loop system of existing magnetic drive pump is due to pressure drop, the requirement that can not meet petrochemical industry and carry easy gasifying medium.Compared with prior art, the beneficial effects of the utility model are as follows: the utility model is provided with auxiliary impeller at interior magnet rotor ear end face, and pump shaft is provided with axial hole and half through hole radially, and axial hole communicates with impeller eye.The liquid stream of coming in from pump cover inlet opening, air gap between interior magnet rotor and separation sleeve, and by the auxiliary impeller speedup pressurization again of interior magnet rotor end face, accelerate by the axial hole of pump shaft and half through hole radially through the liquid stream of separation sleeve arch floor, lubrication sliding bearing, take away fast frictional heat, this inner loop mode by auxiliary impeller speedup supercharging, is not only applicable to carrying the medium of easily vaporization and the working life of having improved sliding bearing.
Brief description of the drawings
Fig. 1 is the structural representation of a kind of magnetic drive pump with auxiliary impeller of the utility model;
Fig. 2 is the structural representation of auxiliary impeller in the utility model;
Fig. 3 is the sectional drawing of Fig. 2 along A-A.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in detail.
Referring to Fig. 1～3, a kind of magnetic drive pump with auxiliary impeller, comprises the pump housing 1, impeller 2, pump cover 3, separation sleeve 4, auxiliary impeller 5, hitch 6, outer magnet rotor 7, interior magnet rotor 8, pump shaft 9, plain bearing housing 10 and sliding bearing 11; The pump housing 1 be tightly connected pump cover 3 and hitch 6, have inlet opening 12 on pump cover 3; Pump shaft 9 two ends are separately installed with impeller 2 and interior magnet rotor 8, and are installed on plain bearing housing 10 by sliding bearing 11; Separation sleeve 4 is between outer magnet rotor 7 and interior magnet rotor 8 and be fixed on pump cover 3, and auxiliary impeller 5 is arranged on interior magnet rotor 8 ear end faces, and pump shaft 9 is provided with axial hole 13 and half through hole 131 radially, and axial hole 13 communicates with impeller 2 entrances.
Improvements of the present utility model are, axial hole 13, in the reduced of impeller 2 ends, can increase pressure, and accelerating medium is passed through, and is beneficial to and carries out cooling to sliding bearing 11.Liquid is flowed through after auxiliary impeller 5 speedups boost, through axial hole 13, half through hole 131 lubrication sliding bearings 11 take away rapidly frictional heat radially.
Referring to Fig. 2, Fig. 3, the auxiliary impeller 5 described in the present embodiment is five straight radial blades.
The liquid stream of coming in from pump cover 3 inlet openings 12, air gap between interior magnet rotor 8 and separation sleeve 4, and by the auxiliary impeller 5 speedup pressurization again of interior magnet rotor 8 end faces, accelerate by the axial hole 13 of pump shaft 9 and half through hole 131 radially through the liquid stream of separation sleeve 4 arch floors, lubrication sliding bearing 11, take away fast frictional heat, this inner loop mode by auxiliary impeller 5 speedup superchargings, is not only applicable to carrying the medium of easily vaporization and the working life of having improved sliding bearing.Boost fluid described in the present embodiment is flowed through impeller through hole low pressure area finally by pump housing outlet discharge.,
It is more than the preferred embodiment of the utility model, when not limiting with this scope of the utility model enforcement, make simple equivalence according to the content described in the utility model claim and model utility specification and change, within still belonging to the utility model claim scope.In addition, summary part and title are only the use for auxiliary patent document search, are not used for limiting the interest field of the utility model.
Claims (3)
1. a magnetic drive pump for the auxiliary impeller of band, comprises the pump housing, impeller, pump cover, separation sleeve, hitch, outer magnet rotor, interior magnet rotor, pump shaft, plain bearing housing and sliding bearing; The described pump housing be tightly connected pump cover and hitch, have inlet opening on described pump cover; Described pump shaft two ends are separately installed with impeller and interior magnet rotor, and are installed on plain bearing housing by sliding bearing; Described separation sleeve is between outer magnet rotor and interior magnet rotor and be fixed on pump cover, it is characterized in that: described interior magnet rotor ear end face is provided with auxiliary impeller, and described pump shaft is provided with axial hole and half through hole radially, and described axial hole communicates with impeller eye.
2. a kind of magnetic drive pump with auxiliary impeller according to claim 1, is characterized in that, described axial hole is in the reduced of impeller end.
3. a kind of magnetic drive pump with auxiliary impeller according to claim 1, is characterized in that, described auxiliary impeller is five straight radial blades.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420314304.0U CN203867911U (en) | 2014-06-12 | 2014-06-12 | Magnetic pump with auxiliary impeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420314304.0U CN203867911U (en) | 2014-06-12 | 2014-06-12 | Magnetic pump with auxiliary impeller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203867911U true CN203867911U (en) | 2014-10-08 |
Family
ID=51648871
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420314304.0U Expired - Fee Related CN203867911U (en) | 2014-06-12 | 2014-06-12 | Magnetic pump with auxiliary impeller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203867911U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105508260A (en) * | 2015-12-18 | 2016-04-20 | 安徽南方化工泵业有限公司 | Axial balanced type metal magnetic drive pump |
| CN106402016A (en) * | 2016-11-29 | 2017-02-15 | 合肥皖化电泵有限公司 | Auxiliary impeller structure of boiler water pump |
| CN110529385A (en) * | 2018-05-24 | 2019-12-03 | 温州市邦明机械设备制造有限公司 | A kind of corrosion-resistant magnetic force driven centrifugal pump |
| CN112483421A (en) * | 2020-10-21 | 2021-03-12 | 江苏大学镇江流体工程装备技术研究院 | Magnetic pump with punching-welding formed pump body and impeller |
| CN112483422A (en) * | 2020-10-21 | 2021-03-12 | 江苏大学镇江流体工程装备技术研究院 | Magnetic pump for chemical industry |
-
2014
- 2014-06-12 CN CN201420314304.0U patent/CN203867911U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105508260A (en) * | 2015-12-18 | 2016-04-20 | 安徽南方化工泵业有限公司 | Axial balanced type metal magnetic drive pump |
| CN106402016A (en) * | 2016-11-29 | 2017-02-15 | 合肥皖化电泵有限公司 | Auxiliary impeller structure of boiler water pump |
| CN110529385A (en) * | 2018-05-24 | 2019-12-03 | 温州市邦明机械设备制造有限公司 | A kind of corrosion-resistant magnetic force driven centrifugal pump |
| CN112483421A (en) * | 2020-10-21 | 2021-03-12 | 江苏大学镇江流体工程装备技术研究院 | Magnetic pump with punching-welding formed pump body and impeller |
| CN112483422A (en) * | 2020-10-21 | 2021-03-12 | 江苏大学镇江流体工程装备技术研究院 | Magnetic pump for chemical industry |
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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: 20200612 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |