CN2443173Y - Non-leakage self-priming centrifugal pump - Google Patents
Non-leakage self-priming centrifugal pump Download PDFInfo
- Publication number
- CN2443173Y CN2443173Y CN 99202511 CN99202511U CN2443173Y CN 2443173 Y CN2443173 Y CN 2443173Y CN 99202511 CN99202511 CN 99202511 CN 99202511 U CN99202511 U CN 99202511U CN 2443173 Y CN2443173 Y CN 2443173Y
- Authority
- CN
- China
- Prior art keywords
- pump
- self
- centrifugal pump
- priming centrifugal
- leakage
- 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 non-leakage self-priming centrifugal pump for conveying liquid, which is composed of a self-priming centrifugal pump, a magnetic transmission device and an electric motor, wherein the magnetic transmission device arranged between a pump body and the electric motor is composed of a separation sleeve and an inner and an outer magnetic rings. The separation sleeve, which is a revolving body with a sealed top, is made of nonmagnetic conductive materials and is fixed to a pump bearing body through a rabbet. A shaft end sealing in the existing pump is replaced by the static sealing, and the separation sleeve makes the conveying medium isolated from the outside so that the goals of no shaft sealing and no leakage can be achieved. The utility model is suitable for conveying flammable, explosive, toxic and expensive liquid in a self-priming mode, and particularly can be used in occasions where any leakage is not allowed.
Description
The utility model relates to pump class, particularly self priming centrifugal pump.
At present, known self priming centrifugal pump is by the pump housing, impeller, bearing support, be made up of the pump shaft and the shaft end seal of bearing supporting.When prime mover drove the pump shaft rotation, the working medium of pump chamber easily leaked the what external world by shaft end seal.When working medium is inflammable, explosive, hypertoxic or precious liquid, just very easily cause burning, blast, the staff poisons or precious material lost.
The purpose of this utility model provides a kind of magnetic transmission does not have the leakage self priming centrifugal pump, the power of motor shaft is passed to the impeller (6) of the work of self priming centrifugal pump by magnetic driver.The pump housing of self priming centrifugal pump (11) is made up of suction chamber (9), volute chamber, explosion chamber, gas-liquid separation chamber (10), liquid storage room (8) and return port (7) etc.After the pump starting, the impeller that gas in the suction line and liquid are rotated together (6) sucks, and mixed in impeller (6) inside, under action of centrifugal force, liquid clips gas flow impeller (6) outer rim, after volute chamber is collected, because of the effect of cut water enters gas-liquid separation chamber (10) by diffusing tube, lighter gas separated back from the gas-liquid mixed object is discharged by pump housing discharge opening, and the liquid after the degassing is got back to liquid storage room (8) and gone back to (7) to impeller (6) through return port, mixes once more with gas in the suction line, the process of going round and beginning again, up to exhausting gas, finish the self-priming process, the operation of pump normal operation input.The occasion that this pump can be used for carrying is inflammable, explosive, poisonous, expensive liquid etc. does not allow any leakage.This pump structure is simple, easy to operate, maintenance is easy, and it is reliable to operate steadily, long service life.
Magnetic driver is to be positioned between the pump housing (11) and the motor (1), is made up of separation sleeve (2) and inside and outside magnetic steel ring (4) (13).Separation sleeve (2) is the solid of rotation of a top seal, adopts the non-magnet material manufacturing, and is fixing by seam and bearing support (5); Inside and outside magnetic steel ring (4) (13) fuses with supporting ring (3) (14), and external support ring (14) is fixed on the motor reel (16), and internal support ring (3) is fixed on the pump shaft (12).
Adopt the nothing after the technique scheme to leak self priming centrifugal pump, cancelled the shaft end seal device that present self priming centrifugal pump must adopt, reached leak free purpose.
The utility model is described in further detail below in conjunction with embodiment:
Figure of description is not for there being the self priming centrifugal pump of leakage structural drawing
Among the figure: motor (1), separation sleeve (2), internal support ring (3), interior magnetic steel ring (4), bearing support (5), impeller (6), return port (7), liquid storage room (8), suction chamber (9), gas-liquid separation chamber (10), the pump housing (11), pump shaft (12), outer steel ring (13), external support ring (14) connected body (15), motor shaft (16).
In the illustrated embodiment, return port (7), liquid storage room (8), suction chamber (9) gas-liquid separation chamber (10) finish when manufacturing and designing by the pump housing (11), and the pump housing (11) combines with prime mover (1) by connected body (15).During prime mover (1) work, rotate together the outer steel spare (13), interior magnet steel spare (3), (4) of (14) drive installation on pump shaft (12) that are installed on the prime mover shaft (16), thereby make impeller (6) work, the working medium in the pump chamber then is hedged off from the outer world fully because of the effect of shielding can (2).This example is formed unit by common base.
Claims (2)
1, a kind of nothing is leaked self priming centrifugal pump, form by motor, magnetic drive and self priming centrifugal pump, it is characterized in that: between the pump housing with self-priming structure (11) and motor (1), be provided with magnetic drive, motor shaft (16) links to each other with external support ring (14), pump shaft (12) links to each other with internal support ring (3), inside and outside supporting ring (3), (14) are being fixed inside and outside magnetic steel ring (4), (13) respectively, are provided with shielding can between the internal-external magnetic steel ring (4) (13).
2, nothing according to claim 1 is leaked self-priming centrifugal pump, it is characterized in that: magnetic drive is by the outer steel (13) and the interior magnet steel (4) that is installed on the pump shaft that are installed on the motor reel (16), and be installed in the shielding can of making by non-magnet material between the internal-external magnetic steel ring (4) (13) and form, the medium that shielding can is carried pump is hedged off from the outer world, and reaching does not have the purpose of leakage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99202511 CN2443173Y (en) | 1999-01-23 | 1999-01-23 | Non-leakage self-priming centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99202511 CN2443173Y (en) | 1999-01-23 | 1999-01-23 | Non-leakage self-priming centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2443173Y true CN2443173Y (en) | 2001-08-15 |
Family
ID=33997933
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99202511 Expired - Fee Related CN2443173Y (en) | 1999-01-23 | 1999-01-23 | Non-leakage self-priming centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2443173Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100439717C (en) * | 2007-01-19 | 2008-12-03 | 清华大学 | Double suction microminiature type vane pump with no spindle drive |
| CN108331790A (en) * | 2018-04-09 | 2018-07-27 | 宁波帕普机电有限公司 | A kind of air-water mixing pump and air water mixing machine |
-
1999
- 1999-01-23 CN CN 99202511 patent/CN2443173Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100439717C (en) * | 2007-01-19 | 2008-12-03 | 清华大学 | Double suction microminiature type vane pump with no spindle drive |
| CN108331790A (en) * | 2018-04-09 | 2018-07-27 | 宁波帕普机电有限公司 | A kind of air-water mixing pump and air water mixing machine |
| CN108331790B (en) * | 2018-04-09 | 2024-04-16 | 台州兆普机电有限公司 | Air-water mixing pump and air-water mixer |
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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 |