CN205478343U - S type double suction centrifugal pump - Google Patents
S type double suction centrifugal pump Download PDFInfo
- Publication number
- CN205478343U CN205478343U CN201521039856.6U CN201521039856U CN205478343U CN 205478343 U CN205478343 U CN 205478343U CN 201521039856 U CN201521039856 U CN 201521039856U CN 205478343 U CN205478343 U CN 205478343U
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- China
- Prior art keywords
- pump
- bearing
- double suction
- pump housing
- pump shaft
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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 relates to a S type double suction centrifugal pump belongs to the mechanical engineering field. The utility model discloses a two -way impeller of S type can be taken into account positive and negatively in the performance, and the cavitation performance matches for pumping station structure and operation management greatly simplify, reduce use cost effectively, resources are saved, but wide application in farm irrigation facility, urban water supply and drainage, distruting water transregionally, aquaculture etc. The utility model discloses the double suction mouth of centrifugal pump, discharge opening is all in the below of the axial lead of pump shaft, has simplified the mechanical structure of the centrifugal pump among the prior art, makes each part compacter, and then has prolonged the life of centrifugal pump, the utility model discloses the pump shaft periphery is covered through stud fixed bag has the axle sleeve, and stud is fastened by the sleeve nut, and it is effectual to have a bearing seal, and the availability factor is high, and advantage that energy -conserving effect is showing satisfies the use under the severe rugged environment.
Description
Technical field
This utility model relates to a kind of S type double suction centrifugal pump, belongs to mechanical engineering field.
Background technology
Centrifugal pump is typically driven by motor, before starting pump, hydraulically full in the pump housing and suction line.When impeller high speed rotating, impeller drives interlobate liquid to rotate together, and due to the effect of centrifugal force, liquid is thrown toward impeller outer edge (flow velocity can increase to 15～25m/s) from impeller central, and kinetic energy is consequently increased.After liquid enters pump case, owing to the runner in volute shaped pump casing gradually expands, flow rate of liquid is gradually lowered, and a part of kinetic energy is changed into static energy, and then liquid flows out along outlet with higher pressure.Meanwhile, forming certain vacuum owing to liquid is thrown out of, and the pressure at liquid level is higher than impeller central place at impeller central, therefore, the liquid of suction line enters in pump under differential pressure action.Impeller does not stop to rotate, and liquid is the most continuously inhaled into and extrudes.
But centrifugal pump of the prior art uses the common axial-flow pump of unidirectional aerofoil profile, not only complicated structure mostly, causes its service life shorter, need often to safeguard, increase the use cost of user；Although and use the common axial-flow pump of unidirectional aerofoil profile also can realize when impeller inverts reversely drawing water, but owing to the aerofoil profile of at this moment blade is in antiarch state, and the effect of stator makes, and Inlet water miscarriage is raw significantly turns to consistent inlet whirl with impeller, the energy and the cavitation performance that make impeller decline to a great extent, the serious blade separation of flow causes cavitation, vibration and the noise of fierceness, makes engineering operation there is serious potential safety hazard.
Utility model content
The S type double suction centrifugal pump that the deficiency existed for prior art, this utility model offer length in a kind of service life and cavitation performance are suitable.
This utility model is achieved through the following technical solutions:
nullA kind of S type double suction centrifugal pump，Including the pump housing，Pump cover it is provided with on the pump housing，For sealing the pump housing，The pump shaft of lateral arrangement it is provided with in the pump housing，Pump shaft is connected to impeller body by binding，Pump shaft periphery is covered with axle sleeve by stud fixed packet，Stud is fastened by sleeve nut，Sleeve outer surface and pump housing inner surface form an airtight filler chamber，Filler chamber is sealed by gland，Filler chamber connects water sealing (sealing water) pipe by packing ring，Pump the tip of the axis is provided with shaft coupling，Pump shaft is provided with bearing bracket stand near one end of shaft coupling by fixing bolt，Bearing body is installed on bearing bracket stand，Bearing body is provided with single-row radial ball bearing near pump shaft end，Single-row radial ball bearing is connected on pump shaft by round nut，Bearing body is sealed by bearing cap，Impeller body is at pump shaft double suction formed below mouth，It is provided with sealing ring on double suction mouth，It is provided with discharge opening on the pump housing between double suction mouth，Discharge opening is connected with the suction chamber in the pump housing by double suction mouth，Filler interstage sleeve it is provided with between filler chamber and suction chamber，Bearing interstage sleeve it is provided with between single-row radial ball bearing and bearing cap，S type symmetrical centered by impeller body section，Including left side lateral body and the right lateral body.
Compared with prior art, the beneficial effects of the utility model are:
1, this utility model uses S type Bidirectional vane wheel, forward and reverse performance can be taken into account, and cavitation performance is suitable, pump station structure and operational management are greatly simplified, efficiently reduce use cost, economize on resources, can be widely applied to farm irrigation facility, urban water supply and sewerage, distruting water transregionally, aquaculture etc.；
2, the double suction mouth of this utility model centrifugal pump, discharge opening are all in the lower section of axial line of pump shaft, simplify the frame for movement of centrifugal pump of the prior art, make all parts more compact, and then extend the service life of centrifugal pump；
3, this utility model pump shaft periphery is covered with axle sleeve by stud fixed packet, and stud is fastened by sleeve nut, has axle envelope effective, and service efficiency is high, and the significant advantage of energy-saving effect meets the use under severe rugged environment.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the structure chart of impeller in Fig. 1.
In accompanying drawing: 1. the pump housing；2. pump cover；3. impeller body；31. left side lateral bodys；Lateral body on the right of in the of 32.；4. pump shaft；5. sealing ring；6. axle sleeve；7. filler interstage sleeve；8. filler chamber；9. packing ring；10. water sealing (sealing water) pipe；11. glands；12. sleeve nuts；13. fix bolt；14. bearing bracket stands；15. bearing bodies；16. single-row radial ball bearings；17. round nuts；18. shaft couplings；19. bearing interstage sleeves；20. bearing caps；21. studs；22. keys；23. double suction mouths；24. suction chambers；25. discharge openings.
Detailed description of the invention
nullA kind of S type double suction centrifugal pump as shown in Figure 1，Including the pump housing 1，Pump cover 2 it is provided with on the pump housing 1，For sealing the pump housing 1，The pump shaft 4 of lateral arrangement it is provided with in the pump housing 1，Pump shaft 4 is coupled by key 22 impeller body 3，Pump shaft 4 periphery is covered with axle sleeve 6 by stud 21 fixed packet，Stud 21 is fastened by sleeve nut 12，Axle sleeve 6 outer surface and the pump housing 1 inner surface form an airtight filler chamber 8，Filler chamber 8 is sealed by gland 11，Filler chamber 8 connects water sealing (sealing water) pipe 10 by packing ring 9，The end of pump shaft 4 is provided with shaft coupling 18，Pump shaft 4 is provided with bearing bracket stand 14 near one end of shaft coupling 18 by fixing bolt 13，Bearing body 15 is installed on bearing bracket stand 14，Bearing body 15 is provided with single-row radial ball bearing 16 near pump shaft 4 end，Single-row radial ball bearing 16 is connected on pump shaft 4 by round nut 17，Bearing body 15 is sealed by bearing cap 20，Impeller body 3 is at pump shaft double suction formed below mouth 23，Sealing ring 5 it is provided with on double suction mouth 23，It is provided with discharge opening 25 on the pump housing 1 between double suction mouth 23，Discharge opening 25 is connected with the suction chamber 24 in the pump housing 1 by double suction mouth 23.
Further, it is provided with filler interstage sleeve 7 between filler chamber 8 and suction chamber 24, between single-row radial ball bearing 16 and bearing cap 20, is provided with bearing interstage sleeve 19.
As in figure 2 it is shown, S type symmetrical centered by impeller body 3 section, including left side lateral body 31 and the right lateral body 32, left side lateral body 31 the most curved backward on warp, and gradually thinning by thickness, the right lateral body 32 is the most curved backward to have a downwarp, and gradually thinning by thickness.
In sum, it is only preferred embodiment of the present utility model, not it is used for limiting the scope that this utility model is implemented, all impartial changes done according to shape, structure, feature and the spirit described in this utility model right and modification, all should be included in right of the present utility model.
Claims (1)
- null1. a S type double suction centrifugal pump，It is characterized in that: include the pump housing，Pump cover it is provided with on the pump housing，For sealing the pump housing，The pump shaft of lateral arrangement it is provided with in the pump housing，Pump shaft is connected to impeller body by binding，Pump shaft periphery is covered with axle sleeve by stud fixed packet，Stud is fastened by sleeve nut，Sleeve outer surface and pump housing inner surface form an airtight filler chamber，Filler chamber is sealed by gland，Filler chamber connects water sealing (sealing water) pipe by packing ring，Pump the tip of the axis is provided with shaft coupling，Pump shaft is provided with bearing bracket stand near one end of shaft coupling by fixing bolt，Bearing body is installed on bearing bracket stand，Bearing body is provided with single-row radial ball bearing near pump shaft end，Single-row radial ball bearing is connected on pump shaft by round nut，Bearing body is sealed by bearing cap，Impeller body is at pump shaft double suction formed below mouth，It is provided with sealing ring on double suction mouth，It is provided with discharge opening on the pump housing between double suction mouth，Discharge opening is connected with the suction chamber in the pump housing by double suction mouth，Filler interstage sleeve it is provided with between filler chamber and suction chamber，Bearing interstage sleeve it is provided with between single-row radial ball bearing and bearing cap，S type symmetrical centered by impeller body section，Including left side lateral body and the right lateral body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521039856.6U CN205478343U (en) | 2015-12-15 | 2015-12-15 | S type double suction centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521039856.6U CN205478343U (en) | 2015-12-15 | 2015-12-15 | S type double suction centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205478343U true CN205478343U (en) | 2016-08-17 |
Family
ID=56660325
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521039856.6U Expired - Fee Related CN205478343U (en) | 2015-12-15 | 2015-12-15 | S type double suction centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205478343U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107829939A (en) * | 2017-10-20 | 2018-03-23 | 项达章 | The single-stage double-suction middle-opening pump that anti-seal ring comes off |
-
2015
- 2015-12-15 CN CN201521039856.6U patent/CN205478343U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107829939A (en) * | 2017-10-20 | 2018-03-23 | 项达章 | The single-stage double-suction middle-opening pump that anti-seal ring comes off |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160817 Termination date: 20191215 |