CN203441803U - Multi-stage mine submersible electric pump with labyrinth type balance drum - Google Patents
Multi-stage mine submersible electric pump with labyrinth type balance drum Download PDFInfo
- Publication number
- CN203441803U CN203441803U CN201320512538.1U CN201320512538U CN203441803U CN 203441803 U CN203441803 U CN 203441803U CN 201320512538 U CN201320512538 U CN 201320512538U CN 203441803 U CN203441803 U CN 203441803U
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- CN
- China
- Prior art keywords
- pump
- submersible electric
- balancing drum
- impeller
- mazy type
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- 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 provides a multi-stage mine submersible electric pump with a labyrinth type balance drum, and belongs to the field of submersible electric pumps. The mine submersible electric pump comprises a motor assembly and a pump assembly, wherein the motor assembly and the pump assembly are arranged on a base in an up-down mode. The motor assembly comprises a winding stator iron core, a rotor, an upper bearing base and a lower bearing base, and the pump assembly comprises a pump shaft, a pump body and an impeller. The upper portion of the base is sequentially and upwards connected with a volute, an outer shell, the upper bearing base and a wire outlet box cover through bolts, the upper bearing base is connected downwards with a shell body, the lower bearing base and a sealing chamber cover through bolts, a mechanical seal is arranged between the lower bearing base and the sealing chamber cover, the volute is connected with a pump cover and the pump body through bolts, and the impeller is arranged in the volute and is in key connection with the pump shaft. The labyrinth type balance drum is arranged on the back side of the last-stage impeller and is positioned through a shaft shoulder, a key and a last-stage impeller hub, and the outer cylindrical face of the labyrinth type balance drum is provided with a groove. The multi-stage mine submersible electric pump can improve the lift, reduce leakage and prolong service life, and is good in abrasion resistance.
Description
Technical field
The utility model relates to a kind of Submerged Motor Pumps, specifically a kind of multistage mining submersible electric pump with mazy type balancing drum.
Background technique
At present, there are a lot of problems in mining submersible electric pump on project organization, such as the structure problem of balancing drum.The normally used balancing drum of mining submersible electric pump is simple in structure, make lift of pump also not high, and liquid is too small by the linear loss at balancing drum place, the axial force of generation can not be by complete equilibrium, seriously reduce the hydraulic efficiency of mining submersible electric pump, limited the using scope of mining submersible electric pump.On the other hand, in the environment using at mining submersible electric pump, the medium of user's discharge is the sewage that contains large solid particle mostly, these sewage balancing drum in mining submersible electric pump that can wear and tear, the material of conventional balancing drum is generally spheroidal graphite cast iron, and the wear-resisting property of spheroidal graphite cast iron is general, this just makes balancing drum very easily be worn in the working environment of mining submersible electric pump, when serious, also can cause leakage, affect the normal use of water pump, be difficult to meet user's actual demand.
Summary of the invention
Technical assignment of the present utility model is for the deficiencies in the prior art, provides a kind of and can more effectively improve pump head, reduce wear and leak, increase the water pump multistage mining submersible electric pump with mazy type balancing drum in working life.
The utility model solves the technological scheme that its technical problem adopts:
A kind of multistage mining submersible electric pump with mazy type balancing drum, comprise the electric machine assembly and the pump assembly that are arranged in up and down on base, described electric machine assembly includes winding stator core, rotor and upper and lower bearing support, and described pump assembly comprises pump shaft, the pump housing, impeller.Described base top is bolted and is upwards connecting successively spiral case, shell, upper bearing bracket, wire outlet box cover, described upper bearing bracket is also connecting housing downwards by bolt, step, sealing chamber cap, between described step and sealing chamber cap, also has mechanical seal, described spiral case is by bolt and pump cover, the pump housing links together, there is impeller described spiral case inside, impeller key is connected on pump shaft, described mazy type balancing drum is arranged on impeller behind through pump shaft, pass through the shaft shoulder, key, locate with impeller wheel hub, fluted on described mazy type balancing drum external cylindrical surface.
The groove number of turns on described mazy type balancing drum external cylindrical surface is between 5-10 circle.
Recess width on described mazy type balancing drum external cylindrical surface equates, the degree of depth is identical.
Described mazy type balancing drum adopts rich chromium cast iron material.
Compared with prior art, the beneficial effect producing is a kind of multistage mining submersible electric pump with mazy type balancing drum of the present utility model:
The utility model adopts the balancing drum of maze-type structure can improve water lift of pump, increases linear loss, improves the hydraulic efficiency of mining submersible electric pump, expands water pump using scope; Adopt the material of rich chromium cast iron to make it have good wear resistance, can reduce well leakage, extend its working life, meet user's actual demand.
Accompanying drawing explanation
Accompanying drawing 1 is structural representation of the present utility model.
Accompanying drawing 2 is mazy type balancing drum structural front view.
In figure: 1. cable, 2. wire outlet box cover, 3. upper bearing bracket, 4. bearing, 5. housing, 6. have winding stator core, 7. rotor, 8. shell, 9. step, 10. bearing, 11. sealing chamber caps, 12. mazy type balancing drums, 121. grooves, 13. spiral cases, 14. final stage stators, 15. pump housings, 16. pilot blades, 17. impellers, 18. pump covers, 19. bases.
Embodiment
Below doing below in conjunction with 1,2 pairs of the utility model of accompanying drawing, specifically explain.
By reference to the accompanying drawings 1,2, a kind of multistage mining submersible electric pump with mazy type balancing drum of the present utility model, comprise the electric machine assembly and the pump assembly that are arranged in up and down on base 19, described electric machine assembly includes winding stator core 6, rotor 7, upper bearing bracket 3 and step 9, and described pump assembly comprises pump shaft, the pump housing 15, impeller 17.Described base 19 tops are bolted and are upwards connecting successively spiral case 13, shell 8, upper bearing bracket 3, wire outlet box cover 2, described upper bearing bracket 3 is also connecting housing 5 downwards by bolt, step 9, sealing chamber cap 11, between described step 9 and sealing chamber cap 11, also has mechanical seal, described spiral case 13 is by bolt and pump cover 18, the pump housing 15 links together, there is impeller 17 described spiral case 13 inside, impeller 17 keys are connected on pump shaft, described mazy type balancing drum 12 is arranged on impeller 17 behind through pump shaft, pass through the shaft shoulder, key, locate with impeller wheel hub, on described mazy type balancing drum 12 external cylindrical surfaces fluted 121.Groove 121 number of turns on described mazy type balancing drum 12 external cylindrical surfaces are between 5-10 circle.Groove 121 width on described mazy type balancing drum 12 external cylindrical surfaces equate, the degree of depth is identical.Described mazy type balancing drum 12 adopts rich chromium cast iron material.
In multistage mining submersible electric pump running, during liquid process mazy type balancing drum 12 place, flow velocity reduces, the linear loss that groove 121 on mazy type balancing drum 12 external cylindrical surfaces can effectively increase liquid while flowing through herein, balancing axial thrust, improves hydraulic efficiency, reaches user's actual demand.
A kind of its processing and fabricating of multistage mining submersible electric pump with mazy type balancing drum of the present utility model is simple and convenient, processing and fabricating shown in by specification accompanying drawing.
Except the technical characteristics described in specification, be the known technology of those skilled in the art.
Claims (4)
1. a multistage mining submersible electric pump with mazy type balancing drum, comprises the electric machine assembly and the pump assembly that are arranged in up and down on base (19), and described electric machine assembly includes winding stator core (6), rotor (7), upper bearing bracket (3) and step (9), described pump assembly comprises pump shaft, the pump housing (15), impeller (17), is characterized in that: described base (19) top is bolted and is upwards connecting successively spiral case (13), shell (8), upper bearing bracket (3), wire outlet box cover (2), described upper bearing bracket (3) is also connecting housing (5) downwards by bolt, step (9), sealing chamber cap (11), also has mechanical seal between described step (9) and sealing chamber cap (11), and described spiral case (13) is by bolt and pump cover (18), the pump housing (15) links together, and there is impeller (17) described spiral case (13) inside, and impeller (17) key is connected on pump shaft, and described mazy type balancing drum (12) is arranged on impeller behind through pump shaft, passes through the shaft shoulder, key, with impeller wheel hub location, on mazy type balancing drum (12) external cylindrical surface fluted (121).
2. a kind of multistage mining submersible electric pump with mazy type balancing drum according to claim 1, is characterized in that: groove (121) number of turns on mazy type balancing drum (12) external cylindrical surface is between 5-10 circle.
3. a kind of multistage mining submersible electric pump with mazy type balancing drum according to claim 2, is characterized in that: groove (121) width on mazy type balancing drum (12) external cylindrical surface equates, the degree of depth is identical.
4. a kind of multistage mining submersible electric pump with mazy type balancing drum according to claim 3, is characterized in that: described mazy type balancing drum (12) adopts rich chromium cast iron material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320512538.1U CN203441803U (en) | 2013-08-22 | 2013-08-22 | Multi-stage mine submersible electric pump with labyrinth type balance drum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320512538.1U CN203441803U (en) | 2013-08-22 | 2013-08-22 | Multi-stage mine submersible electric pump with labyrinth type balance drum |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203441803U true CN203441803U (en) | 2014-02-19 |
Family
ID=50092862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320512538.1U Expired - Fee Related CN203441803U (en) | 2013-08-22 | 2013-08-22 | Multi-stage mine submersible electric pump with labyrinth type balance drum |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203441803U (en) |
-
2013
- 2013-08-22 CN CN201320512538.1U patent/CN203441803U/en not_active Expired - Fee Related
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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: 20140219 Termination date: 20160822 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |