CN202431590U - Sealing structure for space guide vane type long-shaft pump - Google Patents
Sealing structure for space guide vane type long-shaft pump Download PDFInfo
- Publication number
- CN202431590U CN202431590U CN2012200006432U CN201220000643U CN202431590U CN 202431590 U CN202431590 U CN 202431590U CN 2012200006432 U CN2012200006432 U CN 2012200006432U CN 201220000643 U CN201220000643 U CN 201220000643U CN 202431590 U CN202431590 U CN 202431590U
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- CN
- China
- Prior art keywords
- guide blade
- spatial guide
- pump
- mechanical seal
- pump shaft
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- Expired - Fee Related
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Abstract
The utility model discloses a sealing structure for a space guide vane type long-shaft pump, which comprises a space guide vane, a pump shaft, a bearing assembly, a protective pipe, a connecting pipe, a mechanical seal shaft sleeve, a double-end mechanical seal, a mechanical gland, an impeller and an impeller nut, wherein the pump shaft is positioned in the space guide vane through the bearing assembly; the space guide vane, the protective pipe and the connecting pipe are integrally connected through a bolt; the mechanical seal shaft sleeve is arranged on the pump shaft and is positioned through a flat key; the double-end mechanical seal is located between the mechanical seal shaft sleeve and the space guide vane; the mechanical gland is in close fit with the double-end mechanical seal, the mechanical seal shaft sleeve and the space guide vane and is tightly pressed and fixed by using the bolt; and the impeller is arranged on the pump shaft and is interconnected and locked with the pump shaft through the flat key and the impeller nut. The function of protecting the pump shaft and the bearing assembly is achieved, the normal usability of a pump set is increased and the service life of the pump set is prolonged.
Description
Technical field
The utility model relates to a kind of sealing configuration, relates in particular to a kind of sealing configuration of spatial guide blade formula major axis pump.
Background technique
At present; The lower end of existing space stator formula major axis pump is a suction cone formula inlet segment; Liquid gets into through the inlet segment horn mouth; Make the pumping chamber runner of liquid between spatial guide blade, connecting tube and pillar realize pumping of liquid through the impeller rotation to its workmanship, the spatial guide blade inner chamber is provided with seal arrangement and sub-propeller decompressor.As long axis of the end portion of the guide vane pump space immersed in the pumped liquid below the long-term, so the guide vane cavity space corrosion and liquid within the space debris will be deposited in the lumen of the guide vanes.When the pump group is moved, the highly pressurised liquid that impeller work produces, this highly pressurised liquid reduces pressure to it through sub-propeller.As Vice-speed rotating impeller, guide vane cavity space will produce high pressure liquid rotation vane cavity due to space corrosion and liquid is deposited within the debris, make these deposits occur on the inner wall of the guide vanes space erosion speed rotation, thus destroying the normal use of the guide vanes space, and vice impeller decompression are poor, which causes these deposits with high pressure liquid into the seal assembly, thus undermining the pump shaft and bearing assembly performance, affecting the normal operation of pump and reduce its life.Therefore need seal pump.
Summary of the invention
The purpose of the utility model is to overcome the deficiency in the problems referred to above, and a kind of sealing configuration of spatial guide blade formula major axis pump is provided.
For solving the problems of the technologies described above; The technological scheme of the utility model is: a kind of sealing configuration of spatial guide blade formula major axis pump; Comprise spatial guide blade, pump shaft, bearing unit, pillar, connecting tube, machine envelope axle sleeve, double mechanical seal, mechanical gland, impeller, impeller nut; It is characterized in that: said pump shaft is positioned in the spatial guide blade through the bearing unit cooperation, connects spatial guide blade, pillar and connecting tube as a whole through bolt;
Said machine envelope axle sleeve places on the pump shaft and through flat key and cooperates the location; Said double mechanical seal is between machine envelope axle sleeve and spatial guide blade; Said machine sealed cover and double mechanical seal, machine envelope axle sleeve, spatial guide blade closely cooperate, and fix with screw in compression; Said impeller is contained on the pump shaft and through flat key, impeller nut and connects locking.
Spatial guide blade is provided with sealing chamber and machine sealed cover installation position.The machine sealed cover is provided with outside framework oil seal installation position, oiling agent hand-hole and air tap hole.
The utility model can fully effectively stop liquid along the pressure that pump shaft rises, and reaches protection pump shaft and bearing unit, and then improves the normal usability of pump group and prolong pump group working life.The hermetically-sealed construction of the spatial guide blade formula major axis pump that the utility model provided; Lubricating, cool off, washing of its pair single face mechanical seal all relies on lubricants to provide; Do not need the liquid that pump pumps or adding flushing liquor in addition washes it; Thereby can fully effectively stop liquid along pump shaft rise pressure, guarantee that liquid that can not gets into bearing assembly, and the foreign material of deposition can flow out in the spatial guide blade inner chamber by the balance pipe on the back shroud of impeller with liquid; Played the effect of protection pump shaft and bearing assembly, improved the normal serviceability of pump group and prolonged the service life of pump group.
Description of drawings
To combine accompanying drawing and embodiment below, the utility model will be further described.
Fig. 1 is the structural representation of the utility model.
Fig. 2 is the spatial guide blade structural representation of the utility model.
Fig. 3 is the machine sealed cover structural representation of the utility model.
Among the figure: 1. spatial guide blade; 2. pump shaft; 3. bearing unit; 4. pillar; 5. connecting tube; 6. machine seals axle sleeve; 7. double mechanical seal; 8. machine sealed cover; 9. oiling agent; 10. impeller; 11. impeller nut; 12. sealing chamber; 13-14. installation position; 15. hand-hole; 16. air tap hole; 17-18. flat key; 19. outside framework oil seal; 20. bolt; 21-22. screw; 23. equalizing orifice.
Embodiment
As shown in Figure 1, the utility model mainly comprises spatial guide blade 1, pump shaft 2, bearing unit 3, pillar 4, connecting tube 5, machine envelope axle sleeve 6, double mechanical seal 7, machine sealed cover 8, oiling agent 9, impeller 10, impeller nut 11.Like Fig. 1, shown in Figure 2, spatial guide blade 1 is provided with the installation position 13 of sealing chamber 12 and machine sealed cover 8; Like Fig. 1, Fig. 2, shown in Figure 3, machine sealed cover 8 is provided with the installation position 14 of outside framework oil seal 19, the hand-hole 15 and the air tap hole 16 of oiling agent 9.As shown in Figure 1, this practicality with regard to type in pump shaft 2 cooperate through bearing unit 3 and be positioned in the spatial guide blade 1, be connected spatial guide blade 1, pillar 4 and connecting tube 5 as a whole through bolt 20.Be respectively equipped with round section joint ring between spatial guide blade 1 and pillar 4 and the connecting tube 5; Machine envelope axle sleeve 6 places on the pump shaft 2 and through flat key 17 and cooperates the location, is provided with round section joint ring between machine envelope axle sleeve 6 and the pump shaft 2.Double mechanical seal 7 is packed between machine envelope axle sleeve 6 and the spatial guide blade 1, and spatial guide blade 1 is provided with sealing chamber 12; Outside framework oil seal 19 is inserted in the installation position 14 that machine sealed cover 8 is provided with; Machine sealed cover 8 is packed in the installation position 13 that spatial guide blade 1 is provided with, and assurance and double mechanical seal 7, machine envelope axle sleeve 6 and spatial guide blade 1 back that closely cooperates is fixed it with screw 21; The back is stopped up the hand-hole 15 that machine sealed cover 8 is provided with respectively with screw 22 in the sealing chamber 12 that the hand-hole 15 injection spatial guide blades 1 that oiling agent 9 is provided with through machine sealed cover 8 are provided with air tap hole 16; Impeller 10 be contained on the pump shaft 2 with machine envelope axle sleeve 6 near, and connect the back through flat key 18 and impeller nut 11 and be locked simultaneously on pump shaft 2 with machine envelope axle sleeve 6.This practicality with regard to type in, can be by the inner chamber of the balance pipe 23 on the impeller 10 in spatial guide blade 1 inner chamber with liquid outflow space stator 1 along long-pending foreign material.
Claims (3)
1. the sealing configuration of a spatial guide blade formula major axis pump; Comprise spatial guide blade, pump shaft, bearing unit, pillar, connecting tube, machine envelope axle sleeve, double mechanical seal, mechanical gland, impeller, impeller nut; It is characterized in that: said pump shaft is positioned in the spatial guide blade through the bearing unit cooperation, connects spatial guide blade, pillar and connecting tube as a whole through bolt;
Said machine envelope axle sleeve places on the pump shaft and through flat key and cooperates the location; Said double mechanical seal is between machine envelope axle sleeve and spatial guide blade; Said machine sealed cover and double mechanical seal, machine envelope axle sleeve, spatial guide blade closely cooperate, and fix with screw in compression; Said impeller is contained on the pump shaft and through flat key, impeller nut and connects locking.
2. the sealing configuration of a kind of spatial guide blade formula major axis pump according to claim 1 is characterized in that: said spatial guide blade is provided with sealing chamber and machine sealed cover installation position.
3. the sealing configuration of a kind of spatial guide blade formula major axis pump according to claim 1 is characterized in that: said machine sealed cover is provided with outside framework oil seal installation position, oiling agent hand-hole and air tap hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200006432U CN202431590U (en) | 2012-01-04 | 2012-01-04 | Sealing structure for space guide vane type long-shaft pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200006432U CN202431590U (en) | 2012-01-04 | 2012-01-04 | Sealing structure for space guide vane type long-shaft pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202431590U true CN202431590U (en) | 2012-09-12 |
Family
ID=46781041
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200006432U Expired - Fee Related CN202431590U (en) | 2012-01-04 | 2012-01-04 | Sealing structure for space guide vane type long-shaft pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202431590U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108980054A (en) * | 2018-07-25 | 2018-12-11 | 成都西南水泵厂 | Vertical high-efficiency energy-saving automatic control self-priming scale pump |
-
2012
- 2012-01-04 CN CN2012200006432U patent/CN202431590U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108980054A (en) * | 2018-07-25 | 2018-12-11 | 成都西南水泵厂 | Vertical high-efficiency energy-saving automatic control self-priming scale 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: 20120912 Termination date: 20150104 |
|
| EXPY | Termination of patent right or utility model |