CN201292983Y - Double suction split pump - Google Patents
Double suction split pump Download PDFInfo
- Publication number
- CN201292983Y CN201292983Y CNU2008201856955U CN200820185695U CN201292983Y CN 201292983 Y CN201292983 Y CN 201292983Y CN U2008201856955 U CNU2008201856955 U CN U2008201856955U CN 200820185695 U CN200820185695 U CN 200820185695U CN 201292983 Y CN201292983 Y CN 201292983Y
- Authority
- CN
- China
- Prior art keywords
- impeller
- pump
- axle
- suction
- chamber
- 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
Links
Images
Landscapes
- Control Of Non-Positive-Displacement Pumps (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model relates to the technical field of pumps, in particular to a double-suction axially split pump which is provided with a pump shell and a rotor arranged in the pump shell. An inlet, a secondary suction chamber, a secondary pumping chamber and an outlet are sequentially arranged on the pump shell; and the inlet side end on the pump shell is provided with a pump foot. The rotor comprises a shaft and a double-suction type secondary impeller, wherein the secondary impeller is arranged on the shaft and communicated with the secondary suction chamber and the secondary pumping chamber; both ends of the shaft are respectively provided with a driving end bearing body and a blind end bearing body; at least one pair of single-suction type primary impellers is arranged on the shaft, and the primary impellers are symmetrically arranged at two sides of the secondary impeller. A primary suction chamber and a primary pumping chamber which are correspondingly communicated with the primary impeller are arranged on the pump shell, wherein the primary suction chamber is communicated with the inlet; the primary pumping chamber is communicated with the secondary suction chamber; an interstage shaft housing is arranged between the primary impeller and the secondary impeller; the interstage shaft housing, the primary impeller and the secondary impeller are fixed on the shaft through a shaft housing and shaft housing nuts; and a seal body is installed on the shaft housing. The utility model has compact structure and improves the pump lift.
Description
Technical field
The utility model relates to the technical field of pump, especially a kind of the two poles of the earth double suction middle-opening pump.
Background technique
Impeller of the general employing of conventional at present double-suction centrifugal pump, when needs were high-lift, common single-stage pump can not satisfy, if adopt a double-entry impeller to add the two stage pump of a single suction impeller, owing to be a single suction impeller, its flow must be the twice of double-entry impeller, and impeller size is big, can produce very big axial force simultaneously, and pump case runner complexity, the pump case size is bigger, and the axially locating complexity, unstable properties.
The model utility content
The technical problems to be solved in the utility model is: a kind of high-lift double suction middle-opening pump is provided.
The technological scheme that its technical problem that solves the utility model adopts is: a kind of double suction middle-opening pump, have pump case and be arranged on the interior rotor of pump case, be disposed with import on the pump case, secondary suction chamber, secondary pumping chamber, outlet, import side on the pump case is provided with the pump pin, rotor comprises axle, be installed in axle and go up and be communicated with the secondary impeller of secondary suction chamber and secondary pumping chamber, secondary impeller is a double-sucking type, the two ends of axle are installed drive end bearing body and cecum bearing support respectively, a pair of single suction formula first stage impeller is set on the axle at least, first stage impeller is symmetricly set on the both sides of secondary impeller, pump case is provided with the chopped-off head suction chamber and the chopped-off head pumping chamber of corresponding connection with first stage impeller, the chopped-off head suction chamber is communicated with import, the chopped-off head pumping chamber is communicated with secondary suction chamber, has improved lift of pump.
Firm for what first stage impeller and secondary impeller were fixed, first stage impeller and secondary impeller are installed on the axle by key, between first stage impeller and the secondary impeller inter-stage axle sleeve is housed, inter-stage axle sleeve, first stage impeller and secondary impeller are fixed on the axle by axle sleeve and sleeve nut.
For balancing axial thrust, in the cecum bearing part thrust-bearing is housed.
In order to make the good sealing effect of pump, seal is housed on the axle sleeve, seal is packing seal or mechanical seal.
The beneficial effects of the utility model are, a kind of double suction middle-opening pump of the present utility model, and symmetry fully about rotor has been eliminated axial force, and lift of pump has increased, and its compact structure can be used for turning to clockwise and counterclockwise.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is the overall structure sectional view of a kind of double suction middle-opening pump of the utility model;
Fig. 2 is a rotor structure schematic representation of the present utility model;
Fig. 3 is the left view of Fig. 2;
Fig. 4 is a partial structurtes schematic representation of the present utility model.
1. cecum bearing suppories among the figure, 2. pump case, 3. first stage impeller, 4. time level impeller, 5. axle, 6. drive end bearing body, 7. pump pin, 8. chopped-off head suction chamber, 9. import, 10. chopped-off head pumping chamber, 11. inferior level suction chamber, 12. level pumping chambers, 13. outlets, 14. sleeve nut, 15. seals, 16. axle sleeves, 17. key, 18. inter-stage axle sleeves, 19. thrust-bearings.
Embodiment
In conjunction with the accompanying drawings and embodiments the utility model is described in further detail now.These accompanying drawings are structural representation of the present utility model, basic structure of the present utility model only is described in a schematic way, so it only show the formation relevant with the utility model.
As Fig. 1, a kind of double suction middle-opening pump of best real-time mode shown in Figure 2, have pump case 2 and the rotor that is arranged in the pump case 2, be disposed with import 9 on the pump case 2, secondary suction chamber 11, secondary pumping chamber 12, outlet 13, import 9 sides on the pump case 2 are provided with pump pin 7, rotor comprises axle 5, be installed on the axle 5 and be communicated with the secondary impeller 4 of secondary suction chamber 11 and secondary pumping chamber 12, secondary impeller 4 is a double-sucking type, the two ends of axle 5 are installed drive end bearing body 6 and cecum bearing support 1 respectively, power imports into from drive end bearing body 6 one sides, drive the rotation of axle 5, make the impeller on the axle 5 rotate synchronously with axle 5, thereby drive the liquid that enters from import 9 and enter wheel rotation, strengthened the pressure of liquid, become big, made liquid have certain lift from exporting 13 pressure that flow out.
On the axle 5 a pair of single suction formula first stage impeller 3 is set, first stage impeller 3 is symmetricly set on the both sides of secondary impeller 4, pump case 2 is provided with chopped-off head suction chamber 8 and the chopped-off head pumping chamber 10 with first stage impeller 3 corresponding connections, chopped-off head suction chamber 8 is communicated with import 9, chopped-off head pumping chamber 10 is communicated with secondary suction chamber 11, has improved lift of pump.First stage impeller 3 and secondary impeller 4 are installed on the axle 5 by key 17, between first stage impeller 3 and the secondary impeller 4 inter-stage axle sleeve 18 is housed, inter-stage axle sleeve 18, first stage impeller 3 and secondary impeller 4 are fixed on the axle 5 by axle sleeve 16 and sleeve nut 14, thrust-bearing 19 is housed in the cecum bearing part 1, seal 15 is housed on the axle sleeve 16, and seal 15 is packing seal or mechanical seal, makes impeller well fixing, balance axial force, its good sealing effect.
When the utility model is implemented, liquid enters into chopped-off head suction chamber 8 from import 9, flow into then in the first stage impeller 3, power imports into from drive end bearing body 6 one sides, drive the rotation of axle 5, make first stage impeller 3 rotate, thereby in the chopped-off head pumping chamber 10 that has strengthened the pressure of liquid and arranged from first stage impeller 3 rotational flows to axisymmetric, enter the secondary suction chamber 11 that axisymmetric is arranged then, thereby flow in the secondary impeller 4, because secondary impeller 4 is arranged on the axle 5, so rotate synchronously with first stage impeller 3, thereby further strengthened the pressure of liquid, then entered into secondary pumping chamber 12, made liquid flow out from exporting 13, so improved the distance that liquid flows out, make lift of pump strengthen, can be used for turning to clockwise and counterclockwise, because symmetrical fully about pump case, eliminated axial force, chopped-off head pumping chamber 10, secondary suction chamber 11 adopts axial symmetric arrangement, and liquid is divided into two parts, and has eliminated radial force.According to the size of needed lift, can be chosen in the logarithm that first stage impeller 3 is set on the axle 5, promptly increase the progression of pump, first stage impeller 3 logarithms that are added on the axle 5 are many more, and lift of pump is big more, satisfies the requirement of people to pump.
Above-mentioned foundation desirable embodiment of the present utility model is enlightenment, and by above-mentioned description, the related work personnel can carry out various change and modification fully in the scope that does not depart from this model utility technological thought.The technical scope of this model utility is not limited to the content on the specification, must determine its technical scope according to the claim scope.
Claims (7)
1. double suction middle-opening pump, have pump case (2) and be arranged on the interior rotor of pump case (2), be disposed with import (9) on the pump case (2), secondary suction chamber (11), secondary pumping chamber (12), outlet (13), import (9) side on the pump case (2) is provided with pump pin (7), rotor comprises axle, be installed in axle (5) and go up and be communicated with the secondary impeller (4) of secondary suction chamber (11) and secondary pumping chamber (12), the axle two ends are installed drive end bearing body and cecum bearing support respectively, it is characterized in that: secondary impeller is a double-sucking type, on the axle (5) a pair of single suction formula first stage impeller (3) is set at least, first stage impeller (3) is symmetricly set on secondary impeller (4) both sides, pump case (2) is provided with chopped-off head suction chamber (8) and the chopped-off head pumping chamber (10) with the corresponding connection of first stage impeller (3), chopped-off head suction chamber (8) is communicated with import, and chopped-off head pumping chamber (10) is communicated with secondary suction chamber (11).
2. a kind of double suction middle-opening pump according to claim 1 is characterized in that: described first stage impeller (3) and secondary impeller (4) are installed on the axle (5) by key (17).
3. a kind of double suction middle-opening pump according to claim 1 is characterized in that: thrust-bearing (19) is housed in the described cecum bearing part (1).
4. a kind of double suction middle-opening pump according to claim 1 is characterized in that: between described first stage impeller (3) and the secondary impeller (4) inter-stage axle sleeve (18) is housed.
5. a kind of double suction middle-opening pump according to claim 4 is characterized in that: described inter-stage axle sleeve (18), first stage impeller (3) and secondary impeller (4) are fixed on the axle (5) by axle sleeve (16) and sleeve nut (14).
6. a kind of double suction middle-opening pump according to claim 5 is characterized in that: seal (15) is housed on the described axle sleeve (16).
7. a kind of double suction middle-opening pump according to claim 6 is characterized in that: described seal (15) is packing seal or mechanical seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201856955U CN201292983Y (en) | 2008-09-12 | 2008-09-12 | Double suction split pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201856955U CN201292983Y (en) | 2008-09-12 | 2008-09-12 | Double suction split pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201292983Y true CN201292983Y (en) | 2009-08-19 |
Family
ID=41006460
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201856955U Expired - Fee Related CN201292983Y (en) | 2008-09-12 | 2008-09-12 | Double suction split pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201292983Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106122032A (en) * | 2016-08-29 | 2016-11-16 | 湖南长泵业有限公司 | A kind of double feed inlet horizontal split-case centrifugal pump |
| CN106640667A (en) * | 2017-03-02 | 2017-05-10 | 中国农业大学 | Flow diversion shell type double-stage double-suction centrifugal pump |
| CN108825507A (en) * | 2018-07-02 | 2018-11-16 | 上海水泵制造有限公司 | A kind of list double suction mixed type middle open centrifugal pump |
-
2008
- 2008-09-12 CN CNU2008201856955U patent/CN201292983Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106122032A (en) * | 2016-08-29 | 2016-11-16 | 湖南长泵业有限公司 | A kind of double feed inlet horizontal split-case centrifugal pump |
| CN106640667A (en) * | 2017-03-02 | 2017-05-10 | 中国农业大学 | Flow diversion shell type double-stage double-suction centrifugal pump |
| CN106640667B (en) * | 2017-03-02 | 2019-01-22 | 中国农业大学 | A kind of twin-stage double suction centrifugal pump of water conservancy diversion shell-type |
| CN108825507A (en) * | 2018-07-02 | 2018-11-16 | 上海水泵制造有限公司 | A kind of list double suction mixed type middle open centrifugal pump |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105570186A (en) | Single-stage centrifugal pump capable of achieving self balance of axial force | |
| CN201292983Y (en) | Double suction split pump | |
| CN106246559B (en) | A kind of Double pump body double-suction type canned motor pump | |
| CN201377433Y (en) | Vertical long shaft double-suction pump | |
| CN201747618U (en) | Dual-suction multistage centrifugal pump | |
| CN201155463Y (en) | Axial force balancing device centrifugal pump | |
| CN101749251B (en) | Scroll casing type radial split three-grade process pump | |
| CN201277198Y (en) | Multi-stage double-suction split pump | |
| CN201246345Y (en) | Double-suction split pump | |
| CN203308733U (en) | Traction-level compound molecule pump | |
| CN201627724U (en) | Vertical multi-stage centrifugal pump | |
| CN111664095A (en) | Novel horizontal cantilever energy-saving two-stage pump | |
| CN103062046A (en) | Twisted-type rotor pump | |
| CN206874490U (en) | Axial subdivision three-level centrifugal pump | |
| CN2929282Y (en) | Horizontal guide vane type multistage middle open centrifugal pump | |
| CN107795490A (en) | High-lift single-stage double-suction centrifugal pump | |
| CN2392930Y (en) | Double-suction centrifugal pump | |
| CN112761959B (en) | Multistage centrifugal booster pump | |
| CN204025062U (en) | Self balancing energy-saving multi-stage centrifugal pump | |
| CN205064285U (en) | Two -stage centrifugal pump is supported at radial subdivision both ends | |
| CN219472348U (en) | Multistage double-suction middle-open centrifugal pump | |
| CN206770269U (en) | Double suction Turo pump | |
| CN2622432Y (en) | Self-balance multi-stage segmental centrifugal pump | |
| CN206221299U (en) | A kind of novel deep well submerged pump | |
| CN200952475Y (en) | Horizontal multistage pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090819 Termination date: 20120912 |