CN203146407U - Rear vertical shaft tubular pump device with front guide vane - Google Patents
Rear vertical shaft tubular pump device with front guide vane Download PDFInfo
- Publication number
- CN203146407U CN203146407U CN 201320065978 CN201320065978U CN203146407U CN 203146407 U CN203146407 U CN 203146407U CN 201320065978 CN201320065978 CN 201320065978 CN 201320065978 U CN201320065978 U CN 201320065978U CN 203146407 U CN203146407 U CN 203146407U
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- China
- Prior art keywords
- guide vane
- pump
- shaft
- impeller
- vertical shaft
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- Expired - Fee Related
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Abstract
The utility model discloses a rear vertical shaft tubular pump device with a front guide vane. The rear vertical shaft tubular pump device with the front guide vane belongs to the technical field of water pump devices, and comprises a water inlet tank, a water inlet conduit, a front guide vane body, the front guide vane, an impeller chamber, an impeller, a pump shaft, a rear guide vane body, a rear guide vane, a diffusion tube, a water outlet conduit, a power machine, a drive device, a vertical shaft and a water outlet tank and the like, wherein the impeller is arranged on the pump shaft, the power machine is connected with the pump shaft through the drive device, a front guide bearing and a rear guide bearing are arranged on the front side and the rear side of the impeller which is arranged on the pump shaft, the front guide bearing and the rear guide bearing are respectively arranged in the front guide vane body and the rear guide vane body, and a streamline fair water cap is arranged on an inlet of the front guide vane body. The front guide bearing of the rear vertical shaft tubular pump device with the front guide vane overcomes the defects that traditional rear vertical shaft tubular pump devices are long in pump shafts and large in deflection and vanes are easy to knock a shell. The front vane can restrain transverse flow velocity, supplies excellent water flow conditions, cuts vortex of an impeller inlet, and increases lift of a pump. The diffusion tube reduces flow velocity of the water outlet conduit, reduces hydraulic loss, and improves running efficiency, safety and reliability of the rear vertical shaft tubular pump device.
Description
Technical field
The utility model relates to the tubular pump structural type, and particularly the structure of rearmounted shaft tubular pump and preceding diffuser belongs to the pumping plant technical field.
Background technique
Shaft tubular pump can be divided into preposition and rearmounted two kinds of patterns according to the position of vertical shaft, and vertical shaft is preposition in being called of influent side, and vertical shaft is in the postposition that is called of water outlet side.The pump-unit of two kinds of patterns respectively has pluses and minuses.Conventional rearmounted shaft tubular pump, mainly formed by parts such as water inlet pool, water inlet bulkhead gate, water inlet flow channel, fair water cone, preceding diffuser, preceding stator, blade wheel chamber, impeller, rear guide vane, rear guide vane body, diffusing tube, packing seal, pump shaft, transmission device, power engine, vertical shaft, outlet passage, main gate, bulkhead gate and water outlet pooies, because axle is long, amount of deflection is big, a little less than the support, exist blade easily to bump the shortcoming of shell; Under off-design behaviour, vortex appears in through-flow pump impeller inside, and fluidised form worsens, and influences pump performance.
The model utility content
The purpose of this utility model is exactly at existing tubular pump above shortcomings, a kind of rearmounted shaft tubular pump with preceding stator is provided, by increasing support and the rigidity of pump shaft, suppress the impeller inlet transverse flow speed, cut off the impeller inlet vortex, improve the water inlet condition of pump, reduce the outlet passage hydraulic loss, improve lift of pump, efficient, Security and reliability.
The purpose of this utility model is to realize like this, a kind of rearmounted shaft tubular pump with preceding stator, comprise water inlet pool, water inlet flow channel, preceding diffuser, preceding stator, blade wheel chamber, impeller, pump shaft, the rear guide vane body, rear guide vane, diffusing tube, outlet passage, power engine, transmission device, vertical shaft and water outlet pool, water inlet pool, water inlet flow channel, preceding diffuser, blade wheel chamber, the rear guide vane body, diffusing tube, outlet passage sets gradually with water outlet pool and links to each other, impeller is installed on the pump shaft, power engine is connected with pump shaft by transmission device, it is characterized in that, guide bearing and back guide bearing before the both sides, front and back of the impeller of installing on the described pump shaft are provided with, preceding guide bearing and back guide bearing are separately positioned in preceding diffuser and the rear guide vane body, described vertical shaft is arranged in the outlet passage, power engine and transmission device are arranged in the vertical shaft, the import of diffuser is equipped with fair water cone before described, fair water cone is streamlined, and the import maximum diameter equals the impeller hub diameter.
Stator is distortionless straight stator before described, is streamlined along the section of water (flow) direction, and quantity is 4～8, before equal angles is fixed in the diffuser.
Diffuser is metalwork before described, and an end links to each other with blade wheel chamber by flange, and the other end is connected with the water inlet flow channel interlocking.
Described diffusing tube is metalwork, and angle of flare is more than or equal to rear guide vane body angle of flare, and an end links to each other with the rear guide vane body by flange, and the other end is connected with the outlet passage interlocking.
The utility model is rational in infrastructure simple, pump shaft is under the support of preceding guide bearing and back guide bearing, rotated by the actuator drives impeller by power engine, the water body that obtains energy enters the rear guide vane body from blade wheel chamber, flow to outlet passage through diffusing tube, from the vertical shaft both sides stream converge after, enter water outlet pool from outlet passage through main gate and bulkhead gate.Preceding guide bearing, back guide bearing have increased support and rigidity and the stability of pump shaft, and preceding stator can suppress transverse flow speed, and good flow condition is provided, and cuts off the impeller inlet vortex, improves lift of pump.Diffusing tube is convenient to unit installation maintenance, can reduce the outlet passage flow velocity, reduces hydraulic loss, thereby improves pump-unit operational efficiency, Security and reliability.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is A among Fig. 1-A cross-sectional view.
Among the figure: 1. water inlet pool; 2. water inlet bulkhead gate; 3. water inlet flow channel; 4. fair water cone; 5. preceding diffuser; 6. preceding stator; 7. preceding guide bearing; 8. blade wheel chamber; 9. impeller; 10. rear guide vane; 11. rear guide vane body; 12. diffusing tube; 13. packing seal; 14. pump shaft; 15. transmission device; 16. power engine; 17. vertical shaft; 18. outlet passage; 19. main gate; 20. bulkhead gate; 21. water outlet pool.
Embodiment
A kind of rearmounted shaft tubular pump with preceding stator is made up of parts such as water inlet pool 1, water inlet bulkhead gate 2, water inlet flow channel 3, fair water cone 4, preceding diffuser 5, preceding stator 6, preceding guide bearing 7, blade wheel chamber 8, impeller 9, rear guide vane 10, rear guide vane body 11, diffusing tube 12, packing seal 13, pump shaft 14, transmission device 15, power engine 16, vertical shaft 17, outlet passage 18, main gate 19, bulkhead gate 20, water outlet pooies 21.Be installed in the respectively preceding guide bearing in both sides, impeller front and back and back guide bearing on the pump shaft, preceding guide bearing and back guide bearing are separately positioned in preceding diffuser and the rear guide vane body, vertical shaft is set in outlet passage, power engine and transmission device are arranged in the vertical shaft, the import of preceding diffuser is equipped with fair water cone, fair water cone is streamlined, and the import maximum diameter equals the impeller hub diameter.Before stator be distortionless straight stator, be streamlined along the section of water (flow) direction, quantity is 4～8, before equal angles is fixed in the diffuser.Preceding diffuser is metalwork, and an end links to each other with blade wheel chamber by flange, and the other end is connected with the water inlet flow channel interlocking.Diffusing tube is metalwork, and angle of flare is more than or equal to rear guide vane body angle of flare, and an end links to each other with the rear guide vane body by flange, and the other end is connected with the outlet passage interlocking.
A kind of with before the preceding guide bearing of rearmounted shaft tubular pump of stator overcome traditional rearmounted shaft tubular pump because the shortcoming that pump shaft is long, amount of deflection is big, blade easily bumps shell, preceding stator can suppress transverse flow speed, good flow condition is provided, cut off the impeller inlet vortex, improve lift of pump, described diffusing tube is convenient to unit installation maintenance, reduces the outlet passage flow velocity, reduce hydraulic loss, improve pump-unit operational efficiency, Security and reliability.Current flow into water inlet flow channel 3 from water inlet pool 1 through water inlet bulkhead gate 2, stream fair water cone 4 and preceding stator 6, enter blade wheel chamber 8 through preceding diffuser 5, pump shaft 14 is under the support of preceding guide bearing 7 and back guide bearing, by 9 rotations of transmission device 15 drives impeller, the water body that obtains energy enters rear guide vane body 11 from blade wheel chamber 8, flows to outlet passage 18 through diffusing tube 12 by power engine 16, from vertical shaft 17 both sides stream converge after, enter water outlet pool 21 from outlet passage 18 through main gate 19 and bulkhead gate 20.
Each concrete technical characteristics described in above-mentioned embodiment can carry out combination in any by any suitable manner, and it falls within the scope disclosed in the utility model equally.Simultaneously, also can carry out combination in any between the various mode of execution of the present utility model, as long as it is without prejudice to thought of the present utility model, it should be considered as content disclosed in the utility model equally.In addition; the utility model is not limited to the detail in the above-mentioned mode of execution; in technical conceive scope of the present utility model, can carry out multiple simple variant to the technical solution of the utility model, these simple variant all belong to protection domain of the present utility model.Protection domain of the present utility model is defined by the claims.
Claims (4)
1. the rearmounted shaft tubular pump of stator before the band, comprise water inlet pool, water inlet flow channel, preceding diffuser, preceding stator, blade wheel chamber, impeller, pump shaft, the rear guide vane body, rear guide vane, diffusing tube, outlet passage, power engine, transmission device, vertical shaft and water outlet pool, water inlet pool, water inlet flow channel, preceding diffuser, blade wheel chamber, the rear guide vane body, diffusing tube, outlet passage sets gradually with water outlet pool and links to each other, impeller is installed on the pump shaft, power engine is connected with pump shaft by transmission device, it is characterized in that, guide bearing and back guide bearing before the both sides, front and back of the impeller of installing on the described pump shaft are provided with, preceding guide bearing and back guide bearing are separately positioned in preceding diffuser and the rear guide vane body, described vertical shaft is arranged in the outlet passage, power engine and transmission device are arranged in the vertical shaft, the import of diffuser is equipped with fair water cone before described, fair water cone is streamlined, and the import maximum diameter equals the impeller hub diameter.
According to claim 1 a kind of with before the rearmounted shaft tubular pump of stator, it is characterized in that, described before stator be distortionless straight stator, be streamlined along the section of water (flow) direction, quantity is 4～8, before equal angles is fixed in the diffuser.
3. a kind of rearmounted shaft tubular pump with preceding stator according to claim 1 is characterized in that, described preceding diffuser is metalwork, and an end links to each other with blade wheel chamber by flange, and the other end is connected with the water inlet flow channel interlocking.
According to claim 1 a kind of with before the rearmounted shaft tubular pump of stator, it is characterized in that described diffusing tube is metalwork, angle of flare is more than or equal to rear guide vane body angle of flare, one end links to each other with the rear guide vane body by flange, and the other end is connected with the outlet passage interlocking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320065978 CN203146407U (en) | 2013-02-05 | 2013-02-05 | Rear vertical shaft tubular pump device with front guide vane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320065978 CN203146407U (en) | 2013-02-05 | 2013-02-05 | Rear vertical shaft tubular pump device with front guide vane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203146407U true CN203146407U (en) | 2013-08-21 |
Family
ID=48973935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320065978 Expired - Fee Related CN203146407U (en) | 2013-02-05 | 2013-02-05 | Rear vertical shaft tubular pump device with front guide vane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203146407U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104655336A (en) * | 2015-01-19 | 2015-05-27 | 江苏大学 | Water spraying propulsion pump structure capable of measuring dynamic exciting force of blade |
| CN106499670A (en) * | 2016-10-28 | 2017-03-15 | 扬州大学 | Pump installation outlet passage with secondary stator |
-
2013
- 2013-02-05 CN CN 201320065978 patent/CN203146407U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104655336A (en) * | 2015-01-19 | 2015-05-27 | 江苏大学 | Water spraying propulsion pump structure capable of measuring dynamic exciting force of blade |
| CN106499670A (en) * | 2016-10-28 | 2017-03-15 | 扬州大学 | Pump installation outlet passage with secondary stator |
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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: 20130821 Termination date: 20160205 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |