CN2736562Y - Electric submersible shield pump - Google Patents
Electric submersible shield pump Download PDFInfo
- Publication number
- CN2736562Y CN2736562Y CN 200420027055 CN200420027055U CN2736562Y CN 2736562 Y CN2736562 Y CN 2736562Y CN 200420027055 CN200420027055 CN 200420027055 CN 200420027055 U CN200420027055 U CN 200420027055U CN 2736562 Y CN2736562 Y CN 2736562Y
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- CN
- China
- Prior art keywords
- stator
- rotor
- pump
- liquid
- gap
- 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 electric submersible shielding pump, comprising a multi-stage centrifugal pump and an explosion proof shielding electromotor. A liquid inlet arranged on a gap between a rotor and a stator is provided with a filter screen and a back-fire relief element. As the liquid that goes into the gap does not bring with particles, the service life of the shielding sleeve is prolonged. A liquid outlet arranged on the gap between the rotor and the stator is provided with an auxiliary blade wheel, which increases the differential pressure and the speed of the liquid circulation and has the function of cooling down and protecting the temperature of the rotor and the stator. As a thermal protector is arranged on the coil of the stator and a wearing capacity monitor is arranged on the upper part of the sliding bearing, the security and the reliability of the pumping operation are ensured. The electromotor adopts the explosion proof shielding type to ensure that the structure and the technology of the electric submersible shield pump have the advantages of explosion prevention, safety, absolute no leakage, good operation performance, long service life and high efficiency.
Description
Affiliated technical field
The utility model relates to a kind of electrical submersible canned motorpump, is mainly used in absolute dead-tight places such as oil depot, gas station, liquefied petroleum gas station.
Background technique
At present, places such as oil depot, gas station, liquefied petroleum gas station, what mainly use is gear oil pump, and its major defect is: this pump runnability is poor, and noise is big, and mechanical part weares and teares easily, leakage of oil easily, efficient is low.
Summary of the invention
In order to solve the problem that exists in the existing gear oil pump running; the utility model provides a kind of electrical submersible canned motorpump; its structure is that multistage centrifugal pump and blast shield motor are formed; interstitial fluid inlet between rotor and stator; be provided with filter screen and back-fire relief element; interstitial fluid outlet port between rotor and stator is provided with sub-propeller; increase the pressure reduction of liquid circulation; simultaneously the stator coil place be provided with heat protector and on the sliding bearing place be provided with the wear extent monitoring unit, guaranteed the running Security of pump.
The technical solution of the utility model is: its structure is that multistage centrifugal pump and blast shield motor are formed, and the interstitial fluid inlet between rotor and stator is provided with filter screen and back-fire relief element, and the liquid that enters the gap is not with particulate, has improved the life-span of housing.Interstitial fluid outlet port between rotor and stator is provided with sub-propeller, increases the pressure reduction of liquid circulation, improves the speed of liquid circulation, and the temperature of rotor is played cooling and protective action.The stator coil place be provided with heat protector and on the sliding bearing place be provided with the wear extent monitoring unit, guaranteed pump running Security and reliability.Motor adopts the blast shield formula, guarantees explosion-proof, safe, the absolute leakage of not having on pump structure and technology, and runnability is good, and the life-span is long, the efficient height.
The beneficial effects of the utility model are: motor adopts the blast shield formula, guarantees explosion-proof, safety on pump structure and technology, and absolute nothing is revealed, and runnability is good, and the life-span is long, the efficient height.
Description of drawings
Fig. 1 is a kind of structure principle chart of the present utility model.
Among the figure: 1. pump-foot, 2. pump cover, 3. first stage impeller; 4. chopped-off head blower inlet casing, 5. impeller, 6. final stage blower inlet casing; 7. lower bearing body, 8. liquid filtering net, 9. back-fire relief element; 10. properties of journal bearing lubricated, 11. properties of journal bearing lubricated end face abrasive discs, 12. rotors; 13. motor stator, 14. stator inner shield covers, 15. stator external shroud; 16. heat protector, 17. signaling lines, 18. upper bearing (metal) bodies; sliding bearing on 19.; 20. sliding bearing monitoring unit 21. circulating liquid supercharging impellers, 22. motor down-lead plugs, 23. pump overcoats; 24. motor connected body; 25. power supply and signaling line plug, 26. titting water outlets, 27. cables and signal conduit.
Embodiment:
In Fig. 1, mutual panel between pump-foot (1), pump cover (2), chopped-off head blower inlet casing (4), final stage blower inlet casing (6), lower bearing body (7), motor stator (13), motor connected body (24) cylindrical, and connects with pump overcoat (23) and to be integral body.First stage impeller (3), impeller (5) are contained on the splined shaft of rotor (12) and rotate and rotate along with rotor, properties of journal bearing lubricated end face abrasive disc (11) is contained on the rotor axis of electric with circulating liquid supercharging impeller (21) and rotates, and circulating liquid supercharging impeller plays differential pressure action to the liquid that flows between rotor and stator.Liquid filtering net (8), back-fire relief element (9) panel filter, play the back-fire relief effect in lower bearing body circulating liquid ingress to the liquid that passes through.Properties of journal bearing lubricated (10) panel is on the lower bearing body, and last sliding bearing (19) panel plays support and wear-resisting, lubrication to rotor on upper bearing (metal) body (18), be provided with the groove that liquid passes through because slide up and down bearing.Stator inner shield cover (14) plays the shielding protection effect with stator external shroud (15) to motor stator; heat protector (16) and signaling line (17), sliding bearing monitoring unit (20) are respectively to the coil of stator of motor temperature and slide up and down bearing wear and measure supervisory function bit; heat protector sends signal when coil of stator of motor temperature rise overrate; monitoring unit sends signal when sliding up and down bearing wear amount overrate equally; user's hard stop is checked cause, and minimizing causes damage.Motor down-lead plug (22), power supply and signaling line plug (25), titting water outlet (26) cable and signal conduit (27).
Claims (2)
1. electrical submersible canned motorpump, structure is that multistage centrifugal pump and blast shield motor are formed, it is characterized in that: the interstitial fluid inlet between rotor and stator, be provided with filter screen and back-fire relief element, the interstitial fluid outlet port between rotor and stator is provided with sub-propeller.
2. electrical submersible canned motorpump according to claim 1 is characterized in that: the stator coil place be provided with heat protector and on the sliding bearing place be provided with the wear extent monitoring unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420027055 CN2736562Y (en) | 2004-05-17 | 2004-05-17 | Electric submersible shield pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420027055 CN2736562Y (en) | 2004-05-17 | 2004-05-17 | Electric submersible shield pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2736562Y true CN2736562Y (en) | 2005-10-26 |
Family
ID=35307298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420027055 Expired - Fee Related CN2736562Y (en) | 2004-05-17 | 2004-05-17 | Electric submersible shield pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2736562Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103016362A (en) * | 2012-12-19 | 2013-04-03 | 湖南大学 | Multistage electric pump for improving coarse-particle solid-liquid two-phase slurry |
| CN103104506A (en) * | 2011-11-10 | 2013-05-15 | 天津加马机械厂 | Oil-submerged pump capable of transmitting oil products in mass flow and working procedure thereof |
| NO339417B1 (en) * | 2014-12-16 | 2016-12-12 | Aker Solutions As | Centrifugal Pressure Amplifier and Method of Modifying or Constructing a Centrifugal Pressure Amplifier |
| CN109821167A (en) * | 2019-03-27 | 2019-05-31 | 中国船舶重工集团国际工程有限公司 | Flammable liquid fire explosion back-fire relief deliverance apparatus and back-fire relief rescue mode |
-
2004
- 2004-05-17 CN CN 200420027055 patent/CN2736562Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103104506A (en) * | 2011-11-10 | 2013-05-15 | 天津加马机械厂 | Oil-submerged pump capable of transmitting oil products in mass flow and working procedure thereof |
| CN103016362A (en) * | 2012-12-19 | 2013-04-03 | 湖南大学 | Multistage electric pump for improving coarse-particle solid-liquid two-phase slurry |
| CN103016362B (en) * | 2012-12-19 | 2015-07-01 | 湖南大学 | Multistage electric pump for improving coarse-particle solid-liquid two-phase slurry |
| NO339417B1 (en) * | 2014-12-16 | 2016-12-12 | Aker Solutions As | Centrifugal Pressure Amplifier and Method of Modifying or Constructing a Centrifugal Pressure Amplifier |
| CN109821167A (en) * | 2019-03-27 | 2019-05-31 | 中国船舶重工集团国际工程有限公司 | Flammable liquid fire explosion back-fire relief deliverance apparatus and back-fire relief rescue mode |
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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 |