CN202510414U - Axial flow pump - Google Patents
Axial flow pump Download PDFInfo
- Publication number
- CN202510414U CN202510414U CN2012201648802U CN201220164880U CN202510414U CN 202510414 U CN202510414 U CN 202510414U CN 2012201648802 U CN2012201648802 U CN 2012201648802U CN 201220164880 U CN201220164880 U CN 201220164880U CN 202510414 U CN202510414 U CN 202510414U
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- CN
- China
- Prior art keywords
- stator
- wheel hub
- guide vane
- pump
- guide
- 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 - Lifetime
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Abstract
The utility model provides an axial flow pump, which comprises a pump shell, a guide vane wheel hub, guide vanes and a vane wheel hub, wherein guide vane regulating discs and fixed chassis are arranged on the pump shell; one end of each guide vane is connected with the guide vane wheel hub through a rotating shaft, and the other end of each guide vane is connected with the corresponding guide vane regulating disc at the outer part of the pump shell; angle-regulating and locating holes are formed on the guide vane regulating discs; locating holes corresponding to the angle-regulating and locating holes are formed on the fixed chassis; and the guide vane regulating discs are detachably connected with the fixed chassis. The axial flow pump has the advantages that angles of the guide vanes can be quantitatively regulated, so that incidence angles at inlets of the guide vanes and flow separating vortexes at the tail parts of the guide vanes are eliminated, and hydraulic losses at the guide vane section are reduced at the same time; matching surfaces of the guide vanes and the pump shell are spherical surfaces, thereby avoiding clearances from occurring between the guide vanes and the pump shell when the angles of the guide vanes are regulated; and the structure of the axial flow pump is simple and the practicality of the axial flow pump is high.
Description
Technical field
The utility model belongs to field of mechanical technique, particularly a kind of axial-flow pump.
Background technique
Axial-flow pump is to use hydraulic machinery very widely; Widely apply in fields such as water transfer, agricultural water conservancy, town water supply and military affairs; Axial-flow pump of the prior art; Wherein stator all is to be contained on the stator wheel hub according to design conditions designs and with a certain fixedly laying angle, can not be along with the change of operating mode adjusting angle, a kind of axial-flow pump (CN2931863Y) was disclosed on August 8th, 2007 such as Patent Office of the People's Republic of China.The stator of such axial-flow pump is fixed, and can't regulate, and it is when moving with off-design behaviour; Often have the angle of attack at the stator head, separation of flow vortex appears in afterbody, causes hydraulic loss; Cause decrease in efficiency; Simultaneously, the existence of the stator head angle of attack and afterbody separation of flow vortex can cause fluctuation of service, the vibration aggravation; And Patent Office of the People's Republic of China's on March 23rd, 2011 disclosed a kind of axial-flow pump (CN201771784U) with adjustable guide vane; The corresponding pump case of stator part is cylindrical; The stator angle of regulation range is little; And adjusting angle can't quantize, and between stator and the pump case obvious gap is arranged, and hydraulic loss is bigger when regulating the stator angle.
The model utility content
To the problem that background technique exists, the utility model provides a kind of axial-flow pump.
For solving the problems of the technologies described above, the utility model adopts following technological scheme.
A kind of axial-flow pump comprises pump case, stator wheel hub, stator, blade wheel hub; Pump case is provided with stator adjustment disk, fixed underpan; Stator one end is connected with the stator wheel hub through running shaft, and the other end is connected with the outside stator adjustment disk of pump case; Offer the angle modulation positioning hole on the stator adjustment disk, offer on the fixed underpan and angle modulation positioning hole corresponding positioning hole, be removable the connection between stator adjustment disk and the fixed underpan.
Optimal technical scheme as the utility model has:
Away from blade wheel hub one end, also be provided with stationary cascade between stator wheel hub and the pump case.
Between described stator and the pump case and the fitting surface between stator and the stator wheel hub be sphere.
Described stator adjustment disk is connected through bolt with fixed underpan.
When regulating the stator angle; Pull down bolt; Rotate the stator adjustment disk on the pump case; The angle of regulating as required; Angle modulation positioning hole on the stator adjustment disk and the positioning hole on the fixed underpan is corresponding, get final product with bolt again, the regulation range of stator angle is
in the utility model 5 spends.
Compared with prior art, the utlity model has following advantage and beneficial effect:
1, the utility model can quantitatively be regulated the angle of stator, need not to take apart pump case, the controlling device simple and fast; Be easy to the location; Adjusting angle is accurate, has eliminated the stator head angle of attack and the afterbody separation of flow vortex of off-design behaviour, has improved the stability of operation; Reduce the hydraulic loss of stator section, improved axial flow lift of pump and efficient.
2, the utility model further reclaims the kinetic energy that causes because of velocity circulation through stationary cascade is set above stator, has improved the efficient of axial-flow pump.
3, the utility model through with between stator and the pump case and the fitting surface between stator and the stator wheel hub be made as sphere; Guaranteed being free to slide of stator; Fit between stator and the pump case simultaneously as far as possible; The gap occurs between stator and the pump case when having avoided adjusting angle and waterpower is run off, reduced local headloss.
Description of drawings
Fig. 1 is the traditional axial flow pump structural representation.
Fig. 2 is the structural representation of the utility model.
Fig. 3 is the enlarged view of Fig. 2 at the A place.
Fig. 4 is the right elevation of the utility model.
Wherein, 1-pump case, 2-stator, 3-stator wheel hub, 4-pump shaft, 5-blade, 6-blade wheel hub, 7-stator adjustment disk, 8-running shaft, 9-fixed underpan, 10-stationary cascade, 11-angle modulation positioning hole, 12-positioning hole.
Embodiment
Below in conjunction with embodiment shown in the drawings the utility model is described further.
Shown in accompanying drawing, the utility model comprises pump case 1, stator wheel hub 3, stator 2, blade wheel hub 6; Pump case 1 is provided with stator adjustment disk 7, fixed underpan 9; Stator 2 one ends are connected with stator wheel hub 3 through running shaft 8, and the other end is connected with pump case 1 outside stator adjustment disk 7; Offer angle modulation positioning hole 11 on the stator adjustment disk 7, offer on the fixed underpan 9 and angle modulation positioning hole 11 corresponding positioning hole 12, be removable the connection between stator adjustment disk 7 and the fixed underpan 9; Away from blade wheel hub 6 one ends, also be provided with stationary cascade 10 between stator wheel hub 3 and the pump case 1; Between stator 2 and the pump case 1 and the fitting surface between stator 2 and the stator wheel hub 3 be sphere; The stator adjustment disk is connected through bolt with fixed underpan in the present embodiment; And 11 angle modulation positioning holes on the stator adjustment disk, have been offered; Angle between per two positioning holes is 1 degree, so the regulation range of stator angle be
5 spends.
Claims (4)
1. an axial-flow pump is characterized in that: comprise pump case, stator wheel hub, stator, blade wheel hub; Pump case is provided with stator adjustment disk, fixed underpan; Stator one end is connected with the stator wheel hub through running shaft, and the other end is connected with the outside stator adjustment disk of pump case; Offer the angle modulation positioning hole on the stator adjustment disk, offer on the fixed underpan and angle modulation positioning hole corresponding positioning hole, be removable the connection between stator adjustment disk and the fixed underpan.
2. a kind of axial-flow pump according to claim 1 is characterized in that: away from blade wheel hub one end, also be provided with stationary cascade between stator wheel hub and the pump case.
3. a kind of axial-flow pump according to claim 1 and 2 is characterized in that: between described stator and the pump case and the fitting surface between stator and the stator wheel hub be sphere.
4. a kind of axial-flow pump according to claim 1 and 2 is characterized in that: described stator adjustment disk is connected through bolt with fixed underpan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201648802U CN202510414U (en) | 2012-04-18 | 2012-04-18 | Axial flow pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201648802U CN202510414U (en) | 2012-04-18 | 2012-04-18 | Axial flow pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202510414U true CN202510414U (en) | 2012-10-31 |
Family
ID=47062904
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201648802U Expired - Lifetime CN202510414U (en) | 2012-04-18 | 2012-04-18 | Axial flow pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202510414U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103557186A (en) * | 2013-11-14 | 2014-02-05 | 武汉大学 | Adjustable axial flow pump with front guide vanes |
| CN103939388A (en) * | 2014-04-04 | 2014-07-23 | 江苏大学 | Axial flow pump impeller structure without blade tip leakage |
-
2012
- 2012-04-18 CN CN2012201648802U patent/CN202510414U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103557186A (en) * | 2013-11-14 | 2014-02-05 | 武汉大学 | Adjustable axial flow pump with front guide vanes |
| CN103939388A (en) * | 2014-04-04 | 2014-07-23 | 江苏大学 | Axial flow pump impeller structure without blade tip leakage |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121031 |