CN2422469Y - Heat unload sealing centrifugal pump - Google Patents
Heat unload sealing centrifugal pump Download PDFInfo
- Publication number
- CN2422469Y CN2422469Y CN 99213124 CN99213124U CN2422469Y CN 2422469 Y CN2422469 Y CN 2422469Y CN 99213124 CN99213124 CN 99213124 CN 99213124 U CN99213124 U CN 99213124U CN 2422469 Y CN2422469 Y CN 2422469Y
- Authority
- CN
- China
- Prior art keywords
- pump
- centrifugal pump
- heat
- new structure
- load
- 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 a centrifugal pump of a new structure. The primary structure of the utility model is characterized in that a shaft hub on a blade wheel (1) is conducted with interference fit or is glued with a metallic movable ring of mechanical seal (2) which can form the mechanical seal of the new structure with a fixed ring in a pump cover (3). A pump shaft (4) is provided with a cold/heat unloading charge of wind (5) which is conducted with the interference fit. The components can jointly form the centrifugal pump with a new structure.
Description
Hot off-load novel sealing centrifugal pump belongs to centrifugal pump.Be applicable to transporting water, oil or similar liquid, when being specially adapted to temperature 〉=80 ℃ of these media.
The mechanical sealing linkage ring of prior art centrifugal pump generally is to rely on the interference such as rubber parts that are associated in one with it to be assemblied on the pump shaft, and rubber parts is the rotating ring transmitting torque, also is simultaneously the sealing position between rotating ring and pump shaft.Stationary ring and the rubber parts interference on it are assemblied on the pump cover in (as: Shenyang Water Pump Factory commonly used produces, acid-proof pump factory in Dalian produce 104 types among the GB6556) rotating ring vibration and the corrosion with the rubber parts position of touching of being coupling, cause the sealing premature failure between rotating ring and axle journal, cause whole mechanical seal to be lost efficacy, and the corresponding site on axle journal stays permanent damage, makes the new mechanical seal life-span after the replacing shorter.Existing machinery seals between dynamic and static ring and housing and axle journal, generally is separated with rubber parts, and frictional heat is difficult for conduction, and dynamic and static ring was very easy when especially medium temperature was higher burns or sticking connection, causes sealing premature failure.
It is water-cooled that prior art solution working medium heat load makes the way of nearly pump step bearing early failue.
The purpose of hot off-load novel sealing centrifugal pump is: eliminate mechanical sealing linkage ring axle journal is caused permanent damage, the frictional heat of dynamic and static interannular conducts to working medium rapidly, the life-span of prolonged mechanical sealing.
With of the damage of air-cooled removal working medium high temperature to nearly pump step bearing.
The purpose of hot off-load novel sealing centrifugal pump is achieved in that new structure mechanical seal metal rotating ring, and stationary fit or stick on the impeller propeller boss constitutes new structure mechanical seal jointly with the stationary ring that is contained on the pump cover.
Air-cooled hot off-load of sheet of an endoporus and axle stationary fit is set on pump shaft.
The utility model technology is compared with original technology, rotating ring stationary fit or stick on the impeller, and rotating ring no longer has directly with axle and contacts, and has not also just had the rubber seal in the rotating ring and between axle journal, has eradicated the permanent damage that axle journal vibration and corrosion is caused by it.Rotating ring is a metalwork, and directly and impeller stationary fit or be bonded as one, the frictional heat of dynamic and static interannular directly is conducted into impeller and then spills into medium, has avoided the high temperature friction state of dynamic and static interannular.
Air-cooled hot off-load of stationary fit on pump shaft will spill into air rapidly by the heat that pump shaft is transmitted to this, alleviate nearly pump step bearing heat load, and simple than Water Cooling Technology, cost is low, and is free from environmental pollution.
Fig. 1 is an example of present technique.Among Fig. 1: [1] impeller, [2] sealing rotating ring, [3] pump cover, [4] pump shaft, [5] air-cooled hot off-load, [6] electric motor end cap.
Below in conjunction with accompanying drawing to the present technique example in detail.
Impeller [1] propeller boss upper end, stationary fit or paste mechanical sealing metal rotating ring [2], [2] constitute new structure mechanical seal jointly with the stationary ring that is contained in the pump cover [3].
On pump shaft [4], below the electric motor end cap [6], air-cooled hot off-load of sheet metal [5] of an endoporus and axle stationary fit is set.They and the pump housing etc. are common to constitute air-cooled hot off-load new structure mechanical seal centrifugal pump.
Claims (2)
1, a kind of being assemblied in has an impeller [1] in the pump cover [3], and the centrifugal pump of pump shaft [4] is characterized in that mechanical sealing linkage ring [2] is the propeller boss upper-end surface that sticks on impeller [1].
2,, it is characterized in that being provided with on the said pump shaft between electric motor end cap [6] and pump cover [3] air-cooled hot off-load of sheet metal [5] of a stationary fit according to the described centrifugal pump of claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99213124 CN2422469Y (en) | 1999-06-17 | 1999-06-17 | Heat unload sealing centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99213124 CN2422469Y (en) | 1999-06-17 | 1999-06-17 | Heat unload sealing centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2422469Y true CN2422469Y (en) | 2001-03-07 |
Family
ID=34005622
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99213124 Expired - Fee Related CN2422469Y (en) | 1999-06-17 | 1999-06-17 | Heat unload sealing centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2422469Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102042231B (en) * | 2009-10-12 | 2012-10-03 | 刘铭 | Non-leakage idling resistant centrifugal pump |
| CN113175527A (en) * | 2021-05-17 | 2021-07-27 | 江西立新机液化设备制造有限公司 | Rotary sealing shaft head protection and automatic cooling method |
-
1999
- 1999-06-17 CN CN 99213124 patent/CN2422469Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102042231B (en) * | 2009-10-12 | 2012-10-03 | 刘铭 | Non-leakage idling resistant centrifugal pump |
| CN113175527A (en) * | 2021-05-17 | 2021-07-27 | 江西立新机液化设备制造有限公司 | Rotary sealing shaft head protection and automatic cooling method |
| CN113175527B (en) * | 2021-05-17 | 2022-09-16 | 江西立新机液化设备制造有限公司 | Rotary sealing shaft head protection and automatic cooling method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |