CN206268082U - Radial direction return guide vane deep well pump - Google Patents
Radial direction return guide vane deep well pump Download PDFInfo
- Publication number
- CN206268082U CN206268082U CN201620922951.9U CN201620922951U CN206268082U CN 206268082 U CN206268082 U CN 206268082U CN 201620922951 U CN201620922951 U CN 201620922951U CN 206268082 U CN206268082 U CN 206268082U
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- CN
- China
- Prior art keywords
- guide vane
- return guide
- external diameter
- inlet casing
- blower inlet
- Prior art date
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- Expired - Fee Related
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Abstract
The utility model announces a kind of radial direction return guide vane deep well pump, belongs to fluid machinery.Connect same inlet segment by more than two pairs impellers and blower inlet casing and a water exit end is connected, be coupled by pull bar and formed；The stator of the blower inlet casing is the return guide vane with upper and lower cover plate；Impeller is the double shrouded wheel with forward and backward cover plate；Gap between the front shroud of impeller external diameter and blower inlet casing maximum inner diameter is 1mm to 1.5mm；The external diameter of back shroud of impeller is less than the external diameter of front shroud of impeller and more than stator lower cover external diameter；The return guide vane is the plain vane of involute.Return guide vane uses plain vane in the utility model, and the casting technique of plain vane is most simple, and production cost is minimum；Return guide vane is shaped as involute, and the area of passage of involute runner is easiest to control, and import laying angle is easiest to calculate, and outlet laying angle is all 90 degree, therefore its hydraulic loss is smaller, and pump efficiency is higher.
Description
Technical field
The utility model is related to fluid machinery, especially a kind of main diving centrifugal pump for deep well used in motor-pumped well or length
Axle deep well pump.
Background technology
Centrifugal pump for deep well is a kind of leptosomatic vertical multi-stage centrifugal pump, at least by more than two pairs impellers and blower inlet casing together with
One inlet segment and a water exit end are in series.At present, centrifugal pump for deep well majority both domestic and external is using the depth of spatial guide blade
Well centrifugal pump, number of patent application 200420010385.1《Submersible Pump》It is exactly using the centrifugal pump for deep well of spatial guide blade.
This centrifugal pump for deep well single-stage lift is low, and axial dimension is long, and its manufacturing cost is very high.Patent of invention " a kind of centrifugal pump for deep well "
（Number of patent application 200510123015.8）Employ the return guide vane of inlet side distortion, although its single-stage lift is high, axial dimension
Short, production cost is substantially reduced than the centrifugal pump for deep well of spatial guide blade, but the manufacture mould of its stator ironcasting is very complicated, leads
Cause cast iron stator almost to can not make, plastics stator and hot investment casting stainless steel stator can only be made.
The content of the invention
In order to solve the above technical problems, the utility model provides a kind of radial direction return guide vane deep well pump.
The utility model is achieved through the following technical solutions：A kind of radial direction return guide vane deep well pump, by more than the two pairs impellers and
Blower inlet casing connects same inlet segment and a water exit end series connection, is coupled by pull bar and formed；The stator of the blower inlet casing is that have
The return guide vane of upper and lower cover plate；Impeller is the double shrouded wheel with forward and backward cover plate；The front shroud of impeller external diameter is with blower inlet casing most
Gap between large diameter is 1mm to 1.5mm；The external diameter of back shroud of impeller is less than the external diameter of front shroud of impeller and more than under stator
Cover plate external diameter；The return guide vane is the plain vane of involute.
It is further：The blower inlet casing external diameter is set by the given size of GB/T2816-2002 " well immersible pump "
Meter, blower inlet casing wall thickness is designed by Strength co-mputation, and blower inlet casing maximum inner diameter subtracts blower inlet casing wall thickness equal to blower inlet casing external diameter.
Return guide vane uses plain vane in the utility model, and the casting technique of plain vane is most simple, production cost
It is minimum；Return guide vane is shaped as involute, and the area of passage of involute runner is easiest to control, and import laying angle is easiest to calculate,
Outlet laying angle is all 90 degree, therefore its hydraulic loss is smaller, and pump efficiency is higher.
The beneficial effects of the utility model are：Can with the utility model proposes radial direction return guide vane deep well pump update
Existing deep well submerged pump and borehole shaft driven (centrifugal) pump, are greatly enhanced well pump single-stage lift and reduce well pump axial dimension, make mostly
The production cost reduction by 1/3 or so of number kind.The use reliability of this new radial direction return guide vane deep well pump is because of pump simultaneously
Total length is shortened and improved, it can also be ensured that the efficiency index of water pump is reached advanced world standards, so as to greatly save the energy.
Brief description of the drawings
Fig. 1 is the installation diagram of the utility model one embodiment；
Fig. 2 is the blower inlet casing sectional view of the utility model one embodiment；
Fig. 3 is return guide vane plane figure in Fig. 2.
In figure：1. inlet segment, 2. front shroud, 3. impeller blade external diameter, 4. back shroud, 5. vane inlet side, 6. lower cover,
7. upper cover plate, the 8. pump chamber ring casing between impeller blade external diameter and blower inlet casing maximum inner diameter, 9. blower inlet casing maximum inner diameter, 10. leads
Stream shell external diameter, 11. stators outlet side, 12. pull bars, 13. water exit ends, 14. stator upper cover plate streamlines, 15. stator lower cover streams
Line, the convex surface of 16. return guide vanes, the concave surface of 17. return guide vanes.
Specific embodiment
The following is a specific embodiment of the present utility model, the utility model is described further in conjunction with accompanying drawing.
As shown in Figure 1 to Figure 3, a kind of radial direction return guide vane deep well pump, by more than two pairs impellers and blower inlet casing connect it is same enter
Water section 1 and a water exit end 13 are connected, and are coupled by pull bar 12 and formed；By standard GB/T/T2816-2002《Well is dived under water
Pump》Regulation, blower inlet casing external diameter 10 is necessarily designed to φ 133 or so, and designing blower inlet casing wall thickness by Strength co-mputation is
6mm, blower inlet casing external diameter 10 subtracts the blower inlet casing wall thickness of twice, blower inlet casing maximum inner diameter 9 is tried to achieve for φ 121 or so, according to specified
Flow is φ 100 or so, impeller by the external diameter of lower cover 6 that the inlet -duct area that stator needs can calculate blower inlet casing return guide vane
Using the double shrouded wheel with forward and backward cover plate 2,4, the gap between the external diameter and blower inlet casing maximum inner diameter 9 of front shroud of impeller 2
It is 1mm, is designed to φ 219 or so, the external diameter of back shroud of impeller 4 is less than the external diameter of front shroud of impeller 2 and more than stator lower cover 6
External diameter, be designed to φ 108 or so, impeller blade external diameter 3 is the circular conical surface determined by the forward and backward cover plate 2 of impeller, 4 external diameters, by leaf
The area of passage of the pump chamber ring casing 8 that impeller blade external diameter 3 is surrounded with blower inlet casing maximum inner diameter 9 passes through calculating, in metered flow
40m3When/h, water velocity here is slightly less than the current absolute velocity that impeller blade is exported.
Fig. 2 and Fig. 3 are the blower inlet casing sectional view and return guide vane plane figure of the present embodiment.In figure, vane inlet side 5,
The concave surface 17 of stator outlet side 11, stator upper cover plate streamline 14, the convex surface 16 of stator lower cover streamline 15, return guide vane and return guide vane
Collectively constitute blower inlet casing runner, it is clear that the convex surface 16 and concave surface 17 of stator are all two-dimensional circle cylinders, that is, plain vane, this
Individual shape matching is conducive to casting technique.And, the plane projection of convex surface 16 and concave surface 17 is all involute, because involute flow
The area of passage in road is easiest to control, and import laying angle is easiest to calculate, and outlet laying angle is all 90 degree, therefore its hydraulic loss
Smaller, pump efficiency is higher.
Claims (2)
1. a kind of radial direction return guide vane deep well pump, same inlet segment is connected by more than two pairs impellers and blower inlet casing（1）With a water outlet
Section（13）Series connection, by pull bar（12）Connection is formed；The stator of the blower inlet casing is with upper and lower cover plate（6、7）Return guide vane；
Impeller is with forward and backward cover plate（2、4）Double shrouded wheel；It is characterized in that：The front shroud of impeller（2）External diameter is with blower inlet casing most
Gap between large diameter is 1mm to 1.5mm；Back shroud of impeller（4）External diameter be less than front shroud of impeller（2）External diameter and be more than
Stator lower cover（7）External diameter；The return guide vane is the plain vane of involute, the convex surface of return guide vane（16）It is recessed with return guide vane
Face（17）All it is two-dimensional circle cylinder, return guide vane outlet laying angle is all 90 degree.
2. radial direction return guide vane deep well pump according to claim 1, it is characterised in that：The blower inlet casing external diameter is by GB/
The given size design of T2816-2002 " well immersible pump ", blower inlet casing wall thickness is designed by Strength co-mputation, blower inlet casing
Maximum inner diameter subtracts blower inlet casing wall thickness equal to blower inlet casing external diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620922951.9U CN206268082U (en) | 2016-08-23 | 2016-08-23 | Radial direction return guide vane deep well pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620922951.9U CN206268082U (en) | 2016-08-23 | 2016-08-23 | Radial direction return guide vane deep well pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206268082U true CN206268082U (en) | 2017-06-20 |
Family
ID=59035999
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620922951.9U Expired - Fee Related CN206268082U (en) | 2016-08-23 | 2016-08-23 | Radial direction return guide vane deep well pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206268082U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110159595A (en) * | 2019-05-29 | 2019-08-23 | 江苏大学 | A kind of multistage pump return guide vane increasing runner and runner increase method |
-
2016
- 2016-08-23 CN CN201620922951.9U patent/CN206268082U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110159595A (en) * | 2019-05-29 | 2019-08-23 | 江苏大学 | A kind of multistage pump return guide vane increasing runner and runner increase method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170620 Termination date: 20180823 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |