CN204458380U - A kind of twin-stage is without sealing self-controlling self-priming pump - Google Patents
A kind of twin-stage is without sealing self-controlling self-priming pump Download PDFInfo
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- CN204458380U CN204458380U CN201520133889.0U CN201520133889U CN204458380U CN 204458380 U CN204458380 U CN 204458380U CN 201520133889 U CN201520133889 U CN 201520133889U CN 204458380 U CN204458380 U CN 204458380U
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Abstract
A kind of twin-stage is without sealing self-controlling self-priming pump, and upper impeller water outlet communicates with water-supplying chamber, and the top of water-supplying chamber is connected with baffle plate A, is provided with worm pipe in water-supplying chamber, and the outlet of worm pipe is by transition tube connected water outlet pipe; Described lower impeller water outlet communicates with diversion chamber, and the bottom of diversion chamber is connected with baffle plate B, and diversion chamber outlet connects drainage pipe, and drainage pipe top is connected with baffle plate A; Drainage pipe comprises volute skirt, volute, U-shaped bifurcated pipe, and volute lower inlet connects the outlet of volute skirt, and volute upper outlet is connected with U-shaped bifurcated pipe import by elbow; The middle spacing of U-shaped bifurcated pipe is greater than the width of transition tube, and the height of U-shaped bifurcated pipe is greater than the height of transition tube; The half that volute outside dimension is less than barrel internal diameter size La deducts the half of pump shaft diameter of axle size Lb.The utility model is by arranging independent drainage pipe, and improve the operational efficiency of pump, volumetric loss is little, applies and has good economic and social benefit.
Description
Technical field
The utility model belongs to centrifugal pump field, and particularly a kind of twin-stage is without sealing self-controlling self-priming pump.
Background technique
Self-priming pump must fill clear water or institute's fed sheet of a media in pump chamber when initiating switchup, by the High Rotation Speed of impeller and the gas-liquid separation device of pump itself after starting, achieve the quick separating of gas, liquid, air in pump inlet pipeline is constantly discharged, form vacuum in inlet tube, thus achieve the self-priming working procedure of water pump.During termination of pumping, safety check on exit of pump pipeline cuts out rapidly, cut off the backflow of high-order medium in export pipeline, vacuum breaker valve on the pipeline of pump inlet simultaneously is synchronously opened, and air enters inlet ductwork, destroys the vacuum state in inlet ductwork, thoroughly avoid the defect that in the pump that causes because of siphonage, medium back flow is emptying, remain in water pump liquid storage room and pumped medium material, achieve a drainage and fill with liquid, the object of the lifelong self-priming of water pump.But the return flow line of existing non-sealing self-sucking pump is by impeller and the clearance backflow between stator and intermediate clapboard, after starting, drainage medium and reflux medium disturb mutually, and volumetric loss is large, have impact on the operational efficiency of pump.
Summary of the invention
The purpose of this utility model to solve the problems of the technologies described above.
The purpose of this utility model is achieved in that a kind of twin-stage is without sealing self-controlling self-priming pump, comprise motor, outlet pipe, motor is arranged on barrel by motor cabinet, the output shaft of motor is connected with pump shaft by coupling, pump shaft is disposed with from top to bottom sub-propeller, sub-propeller cover plate, upper impeller, upper impeller cover, lower impeller, the suction port of lower impeller is connected with intake pipe, and intake pipe upper end is provided with electric air valve; Outlet pipe is provided with check valve, and upper impeller water outlet communicates with water-supplying chamber, and the top of water-supplying chamber is connected with baffle plate A, is provided with worm pipe in water-supplying chamber, and the outlet of worm pipe is by transition tube connected water outlet pipe; Lower impeller water outlet communicates with diversion chamber, and the bottom of diversion chamber is connected with baffle plate B, and diversion chamber outlet connects drainage pipe, and drainage pipe top is connected with baffle plate A; It is characterized in that: described drainage pipe comprises volute skirt, volute, U-shaped bifurcated pipe, and volute lower inlet connects the outlet of volute skirt, volute upper outlet is connected with U-shaped bifurcated pipe import by elbow; The middle spacing of U-shaped bifurcated pipe is greater than the width of transition tube, and the height of U-shaped bifurcated pipe is greater than the height of transition tube.
The half that described volute outside dimension is less than barrel internal diameter size La deducts the half of pump shaft diameter of axle size Lb.
The utility model is by arranging independent drainage pipe, and improve the operational efficiency of pump, volumetric loss is little, applies and has good economic and social benefit.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is drainage pipe structural representation of the present utility model.
In figure: 1. motor; 2. check valve; 3. motor cabinet; 4. outlet pipe; 5. coupling; 6. sub-propeller; 7. go up impeller; 8. pump shaft; 9. barrel; 10. drainage pipe; 11. electric air valves; 12. intake pipes; 13. water-supplying chamber; 14. diversion chambers; 15. times impellers; 801. pump shaft diameter of axle size Lb; 901. barrel internal diameter size La; 1001. volute skirt; 1002. volute; 1003.U type bifurcated pipe; 1301. baffle plate A; 1302. transition tube; 1401. baffle plate B.
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:
A kind of twin-stage is without sealing self-controlling self-priming pump, comprise motor 1, outlet pipe 4, motor 1 is arranged on barrel 9 by motor cabinet 3, the output shaft of motor 1 is connected with pump shaft 8 by coupling 5, pump shaft 8 is disposed with from top to bottom sub-propeller 6, sub-propeller cover plate, upper impeller 7, upper impeller cover, lower impeller 15, the suction port of lower impeller 15 is connected with intake pipe 12, and intake pipe 12 upper end is provided with electric air valve 11; Outlet pipe 4 is provided with check valve 2, upper impeller 7 water outlet communicates with water-supplying chamber 13, and the top of water-supplying chamber 13 is connected with baffle plate A1301, is provided with worm pipe in water-supplying chamber 13, and the outlet of worm pipe is by transition tube 1302 connected water outlet pipe 4; Lower impeller 15 water outlet communicates with diversion chamber 14, and the bottom of diversion chamber 14 is connected with baffle plate B1401, and diversion chamber 14 outlet connects drainage pipe 10, and drainage pipe 10 top is connected with baffle plate A1301; Described drainage pipe 10 comprises volute skirt 1001, volute 1002, U-shaped bifurcated pipe 1003, and volute 1002 lower inlet connects the outlet of volute skirt 1001, and volute 1002 upper outlet is connected with the import of U-shaped bifurcated pipe 1003 by elbow; The middle spacing of U-shaped bifurcated pipe 1003 is greater than the width of transition tube 1302, and the height of U-shaped bifurcated pipe 1003 is greater than the height of transition tube 1302; The half that volute 1002 outside dimension is less than barrel internal diameter size La901 deducts the half of pump shaft diameter of axle size Lb801.
During concrete enforcement, medium enters from intake pipe 12, enters diversion chamber 14, enter the space above baffle plate A1301 through drainage pipe 10 from the import of lower impeller 15; Through gas-liquid separation, medium enters water-supplying chamber 13 from the import of upper impeller 7, and the worm pipe in water-supplying chamber 13, transition tube 1302, finally discharge from outlet pipe 4.
Obviously, above-described embodiment is only for the utility model example is clearly described, and the restriction not to mode of execution.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all mode of executions.And thus the apparent change of amplifying out or variation be still among protection domain of the present utility model.
Claims (2)
1. a twin-stage is without sealing self-controlling self-priming pump, comprise motor (1), outlet pipe (4), motor (1) is arranged on barrel (9) by motor cabinet (3), the output shaft of motor (1) is connected with pump shaft (8) by coupling (5), pump shaft (8) is disposed with from top to bottom sub-propeller (6), sub-propeller cover plate, upper impeller (7), upper impeller cover, lower impeller (15), the suction port of lower impeller (15) is connected with intake pipe (12), and intake pipe (12) upper end is provided with electric air valve (11); Outlet pipe (4) is provided with check valve (2), upper impeller (7) water outlet communicates with water-supplying chamber (13), top and the baffle plate A(1301 of water-supplying chamber (13)) be connected, water-supplying chamber is provided with worm pipe in (13), and the outlet of worm pipe is by transition tube (1302) connected water outlet pipe (4); Lower impeller (15) water outlet communicates with diversion chamber (14), bottom and the baffle plate B(1401 of diversion chamber (14)) be connected, diversion chamber (14) outlet connects drainage pipe (10), drainage pipe (10) top and baffle plate A(1301) be connected; It is characterized in that: described drainage pipe (10) comprises volute skirt (1001), volute (1002), U-shaped bifurcated pipe (1003), volute (1002) lower inlet connects the outlet of volute skirt (1001), and volute (1002) upper outlet is connected with U-shaped bifurcated pipe (1003) import by elbow; The middle spacing of U-shaped bifurcated pipe (1003) is greater than the width of transition tube (1302), and the height of U-shaped bifurcated pipe (1003) is greater than the height of transition tube (1302).
2. a kind of twin-stage according to claim 1 without sealing self-controlling self-priming pump, it is characterized in that: described volute (1002) outside dimension is less than barrel internal diameter size La(901) half deduct pump shaft diameter of axle size Lb(801) half.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520133889.0U CN204458380U (en) | 2015-03-10 | 2015-03-10 | A kind of twin-stage is without sealing self-controlling self-priming pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520133889.0U CN204458380U (en) | 2015-03-10 | 2015-03-10 | A kind of twin-stage is without sealing self-controlling self-priming pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204458380U true CN204458380U (en) | 2015-07-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520133889.0U Active CN204458380U (en) | 2015-03-10 | 2015-03-10 | A kind of twin-stage is without sealing self-controlling self-priming pump |
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| CN (1) | CN204458380U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108019360A (en) * | 2017-09-15 | 2018-05-11 | 张易明 | Novel high-pressure pump |
| CN108286524A (en) * | 2018-03-31 | 2018-07-17 | 合肥合博机电有限公司 | A kind of pipeline pump with self-suction function |
-
2015
- 2015-03-10 CN CN201520133889.0U patent/CN204458380U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108019360A (en) * | 2017-09-15 | 2018-05-11 | 张易明 | Novel high-pressure pump |
| CN108286524A (en) * | 2018-03-31 | 2018-07-17 | 合肥合博机电有限公司 | A kind of pipeline pump with self-suction function |
| CN108286524B (en) * | 2018-03-31 | 2023-12-29 | 浙江日井泵业股份有限公司 | Pipeline pump with self-priming function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Hou Yinjin Inventor after: Lu Xia Inventor after: Lu Zhirong Inventor before: Hou Yinjin Inventor before: Lu Xiang Inventor before: Lu Zhirong |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: HOU YINJIN LU XIANG LU ZHIRONG TO: HOU YINJIN LU XIA LU ZHIRONG |