CN204025175U - Twin-stage self-balanced multiple-stage centrifugal pump - Google Patents
Twin-stage self-balanced multiple-stage centrifugal pump Download PDFInfo
- Publication number
- CN204025175U CN204025175U CN201420299376.2U CN201420299376U CN204025175U CN 204025175 U CN204025175 U CN 204025175U CN 201420299376 U CN201420299376 U CN 201420299376U CN 204025175 U CN204025175 U CN 204025175U
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- China
- Prior art keywords
- inlet segment
- bearing case
- stage
- end bearing
- driven
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Abstract
Twin-stage self-balanced multiple-stage centrifugal pump, inlet segment left end is provided with drive end bearing case, inlet segment is connected with time inlet segment by stage casing, secondary inlet segment right-hand member is provided with non-driven-end bearing case, the importer of all impellers of inlet segment is to the one end pointing to pump shaft, the other end of pump shaft is pointed in the water intake direction of all impellers of secondary inlet segment, the liquid outlet of inlet segment is connected by the liquid entering hole of reflow pipe with time inlet segment, the stage casing that inlet segment is connected with time inlet segment is provided with middle cover, and middle cover adopts multi-head spiral sealing; Middle cover is provided with mud hole; The lower end of drive end bearing case is provided with the vexed plate B of bearing housing, is provided with asbestos slate B between drive end bearing case and the vexed plate B of bearing housing; The lower end of non-driven-end bearing case is provided with the vexed plate A of bearing housing, is provided with asbestos slate A between non-driven-end bearing case and the vexed plate A of bearing housing.The utility model compact structure, convenient disassembly, protects equipment, improves the efficiency of pump; Extend the working life of bearing.
Description
Technical field
The utility model belongs to centrifugal pump field, in particular to a kind of JFZY type twin-stage self-balanced multiple-stage centrifugal pump, be applicable to Coal Chemical Industry, urea oil, chemical industry, electric power, metallurgy, pharmacy, environmental protection industry (epi) conveying is neutral or the liquid of a small amount of solid particle that is corrosive, cleans or contain.
Background technique
JFZY type twin-stage self-balanced multiple-stage centrifugal pump is horizontal single-suction multilevel segmental centrifugal pump.
In the prior art, all impellers of single-suction multilevel segmental centrifugal pump are arranged on a pump shaft equidirectionally, and impeller at different levels only has front seal ring, carry out balancing axial thrust with Balance disc or balancing drum always; After disc Long-Time Service in bearing housing, the impurity in fluid can precipitate, and is not easy to cleaning, is taken up impure fluid and lubricate bearing, can affect the working life of bearing by disc; When containing the medium of particle from inlet segment to secondary inlet segment conveying, damage can be caused to the sealing mechanism in stage casing, reduce the working life of pump.
Summary of the invention
The purpose of this utility model will solve the problems of the technologies described above.
The purpose of this utility model is achieved in that twin-stage self-balanced multiple-stage centrifugal pump, comprise drive end bearing case, inlet segment, non-driven-end bearing case, inlet segment left end is provided with drive end bearing case, inlet segment is connected with time inlet segment by stage casing, secondary inlet segment right-hand member is provided with non-driven-end bearing case, inlet segment, secondary inlet segment shares a pump shaft, the importer of all impellers of inlet segment is to the one end pointing to pump shaft, the other end of pump shaft is pointed in the water intake direction of all impellers of secondary inlet segment, the liquid outlet of inlet segment is connected by the liquid entering hole of reflow pipe with time inlet segment, it is characterized in that: the stage casing that described inlet segment is connected with time inlet segment is provided with middle cover, middle cover adopts multi-head spiral sealing, middle cover is provided with mud hole.
The lower end of described drive end bearing case is provided with the vexed plate B of bearing housing, is provided with asbestos slate B between drive end bearing case and the vexed plate B of bearing housing.
The lower end of described non-driven-end bearing case is provided with the vexed plate A of bearing housing, is provided with asbestos slate A between non-driven-end bearing case and the vexed plate A of bearing housing.
The utility model compact structure, convenient disassembly, protects equipment, improves the efficiency of pump; Extend the working life of bearing.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure: 1. pump shaft; 2. drive end is also female; 3. bearing gland A; 4. drive end bearing case; 5. bearing A; 6. bearing gland B; 7. inlet segment; 8. lining; 9. first stage impeller choma; 10. first stage impeller; 11. stators; 12. stage casings; 13. secondary impeller chomas; 14. guide blade sleeves; 15. waterexit ends; 16. middle cover; 17. inlet segments; 18. non-driven-end bearing casees; 19. round nut A; 20. water retaining rings; 21. bearing B; 22. non-driven-end bearing covers; 23. interstage sleeves; 24. discs; 25. bearing gland C; 26. round nut B; 27. asbestos slate A; The vexed plate A of 28. bearing housing; 29. reflow pipes; 30. final stage stators; 31. waterexit end orifice sleeve pressing plates; 32. secondary impeller; 33. drive end axle bearing sleeves; 34. asbestos slate B; The vexed plate B of 35. bearing housing.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail, but not as to restriction of the present utility model:
Twin-stage self-balanced multiple-stage centrifugal pump, comprise drive end bearing case 4, inlet segment 7, non-driven-end bearing case 18, inlet segment 7 left end is provided with drive end bearing case 4, inlet segment 7 is connected with time inlet segment 17 by stage casing 12, secondary inlet segment 17 right-hand member is provided with non-driven-end bearing case 18, inlet segment 7, secondary inlet segment 17 shares a pump shaft 1, the importer of all impellers of inlet segment 7 is to the one end pointing to pump shaft 1, the other end of pump shaft 1 is pointed in the water intake direction of all impellers of secondary inlet segment 17, the liquid outlet of inlet segment 7 is connected by the liquid entering hole of reflow pipe 29 with time inlet segment 17, the stage casing 12 that described inlet segment 7 is connected with time inlet segment 17 is provided with middle cover 16, middle cover 16 adopts multi-head spiral to seal, middle cover 16 is provided with mud hole, the lower end of described drive end bearing case 4 is provided with the vexed plate B35 of bearing housing, is provided with asbestos slate B34 between drive end bearing case 4 and the vexed plate B35 of bearing housing, the lower end of described non-driven-end bearing case 18 is provided with the vexed plate A28 of bearing housing, is provided with asbestos slate A27 between non-driven-end bearing case 18 and the vexed plate A28 of bearing housing.
During concrete enforcement, middle cover 16 adopts multi-head spiral to seal; Middle cover 16 is provided with mud hole, while raising the efficiency, the effect of proterctive equipment when conveying contains the medium of particle, can be played; The vexed plate of bearing housing arranged is for convenience detach, is convenient to the impurity clearing up bottom precipitation, the working life of the bearing extended.
Claims (3)
1. twin-stage self-balanced multiple-stage centrifugal pump, comprise drive end bearing case (4), inlet segment (7), non-driven-end bearing case (18), inlet segment (7) left end is provided with drive end bearing case (4), inlet segment (7) is connected with time inlet segment (17) by stage casing (12), secondary inlet segment (17) right-hand member is provided with non-driven-end bearing case (18), inlet segment (7), secondary inlet segment (17) shares a pump shaft (1), the importer of all impellers of inlet segment (7) is to the one end pointing to pump shaft (1), the other end of pump shaft (1) is pointed in the water intake direction of all impellers of secondary inlet segment (17), the liquid outlet of inlet segment (7) is connected by the liquid entering hole of reflow pipe (29) with time inlet segment (17), it is characterized in that: the stage casing (12) that described inlet segment (7) is connected with time inlet segment (17) is provided with middle cover (16), middle cover (16) adopts multi-head spiral sealing, (16) are provided with mud hole to middle cover.
2. twin-stage self-balanced multiple-stage centrifugal pump according to claim 1, it is characterized in that: the lower end of described drive end bearing case (4) is provided with the vexed plate B(35 of bearing housing), drive end bearing case (4) and the vexed plate B(35 of bearing housing) between be provided with asbestos slate B(34).
3. twin-stage self-balanced multiple-stage centrifugal pump according to claim 1, it is characterized in that: the lower end of described non-driven-end bearing case (18) is provided with the vexed plate A(28 of bearing housing), non-driven-end bearing case (18) and the vexed plate A(28 of bearing housing) between be provided with asbestos slate A(27).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420299376.2U CN204025175U (en) | 2014-06-07 | 2014-06-07 | Twin-stage self-balanced multiple-stage centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420299376.2U CN204025175U (en) | 2014-06-07 | 2014-06-07 | Twin-stage self-balanced multiple-stage centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204025175U true CN204025175U (en) | 2014-12-17 |
Family
ID=52065047
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420299376.2U Expired - Fee Related CN204025175U (en) | 2014-06-07 | 2014-06-07 | Twin-stage self-balanced multiple-stage centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204025175U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105317687A (en) * | 2015-10-19 | 2016-02-10 | 季裕成 | Double-suction self-balancing multiple-stage centrifugal pump |
-
2014
- 2014-06-07 CN CN201420299376.2U patent/CN204025175U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105317687A (en) * | 2015-10-19 | 2016-02-10 | 季裕成 | Double-suction self-balancing multiple-stage centrifugal pump |
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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: 20141217 Termination date: 20150607 |
|
| EXPY | Termination of patent right or utility model |