CN214007591U - Novel post-positioned guide vane body of axial flow pump of irrigation and drainage pump station - Google Patents
Novel post-positioned guide vane body of axial flow pump of irrigation and drainage pump station Download PDFInfo
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- CN214007591U CN214007591U CN202023134734.9U CN202023134734U CN214007591U CN 214007591 U CN214007591 U CN 214007591U CN 202023134734 U CN202023134734 U CN 202023134734U CN 214007591 U CN214007591 U CN 214007591U
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- guide vane
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- wheel hub
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Abstract
The utility model relates to a hydraulic engineering, power engineering technical field discloses a novel irritate and arrange pump station axial-flow pump rearmounted guide vane body, including wheel hub, a plurality of guide vane, rim, wheel hub passes through the bearing and connects in epaxial, the rim is fixed in the wheel hub outward flange, it is a plurality of guide vane set up in between wheel hub and the rim, its one end interval is fixed in wheel hub is last, its characterized in that, guide vane is the bent stator, and its one end that is located the water flow outlet direction is sharpened. Compared with the prior art, the utility model discloses carry out the design modification with the guide vane, the adjustment rivers direction makes rivers can more smooth-going effluence, reduces the guide vane back and takes off a class phenomenon, improves the operating efficiency of pump unit, satisfies the operation requirement of the big amplitude of fluctuation lift pump station, and recovery speed circulation that can be as much as possible reduces the loss, can reduce unit operation noise simultaneously, improves the economic nature and the security of pump station operation.
Description
Technical Field
The utility model relates to a hydraulic engineering, power engineering technical field, in particular to novel irritate and arrange rearmounted guide vane body of pump station axial-flow pump.
Background
The axial-flow pump has the characteristics of low lift and large flow, has simple structure and convenient use, and is more and more widely applied in China particularly along with the start construction of the south-to-north water transfer project. In the axial-flow pump device, the rear guide vane body plays a role in eliminating the water circulation quantity at the outlet of the impeller and converting the circumferential velocity-dividing kinetic energy of the absolute velocity at the outlet of the impeller into pressure energy. The rear guide vane body consists of guide vanes and a diffusion pipe, is designed according to the design working condition of the axial flow pump and is arranged on a guide vane body hub at a certain fixed angle. Wherein the stator is as the main hydraulic component of axial-flow pump, in order to improve the performance of pump unit in novel pump station engineering of irritating, all can be equipped with rearmounted stator, and its structural design is closely relevant with the wholeness ability of pump. In novel drainage and irrigation pump station, especially the pump station of the big amplitude lift, if the stator design is improper, can cause very big influence to axial-flow pump device hydraulic performance, especially under the off-design operating mode, can make the dynamic interference between impeller blade and stator blade enlarge, can not effectual recovery circulation, aggravated the unit vibration simultaneously, reduced efficiency, seriously harm the safety and stability operation of water pump unit.
SUMMERY OF THE UTILITY MODEL
Utility model purpose: to the problem that exists among the prior art, the utility model provides a novel irritate and arrange pump station axial-flow pump rearmounted guide vane body carries out the design modification with the guide vane, and adjustment rivers direction makes rivers can more smooth-going effluence, reduces the guide vane back and takes off a class phenomenon, improves the operating efficiency of pump unit, satisfies the operation requirement of greatly becoming width of cloth lift pump station, and recovery speed circulation that can be as much as possible reduces the loss, improves device efficiency.
The technical scheme is as follows: the utility model provides a novel irritate and arrange pump station axial-flow pump rearmounted guide vane body, including wheel hub, a plurality of guide vane, rim, wheel hub passes through the bearing and connects in epaxial, the rim is fixed in the wheel hub outward flange is a plurality of guide vane set up in between wheel hub and the rim, its one end interval is fixed in wheel hub is last, guide vane is the bent stator, and its one end that is located the water flow direction of export is repaiied sharp.
Furthermore, one end of the guide vane close to the water flow inlet is twisted to one side, and the twist degree is 5-10 degrees.
Further, the rim spreads towards the water outlet, and the included angle between the rim and the hub is 4-8 degrees.
Further, the rim spreads towards the water outlet, and the included angle between the rim and the hub is 5 degrees.
Further, the minimum distance between the inlet edge of the rim in the water flow inlet direction and the guide vane is 4-10 mm.
Further, the minimum distance between the inlet edge of the rim in the water flow inlet direction and the guide vane is 5 mm.
Further, the guide vane center point is a position which is 0.45L away from one end of the guide vane close to the water flow inlet direction, wherein L is the axial length of the guide vane.
Further, the edges of the guide vanes are all arranged into arc-shaped guide angle structures.
Further, the number of the guide vanes is 7.
Has the advantages that:
the utility model discloses a novel irritate and arrange pump station axial-flow pump rearmounted guide vane body carries out the design modification with guide vane, and adjustment rivers direction makes rivers smooth-going more and more, reduces the guide vane back and takes off a class phenomenon, improves the operating efficiency of pump unit, satisfies the operation requirement of greatly becoming width of cloth lift pump station, and recovery speed circulation volume as much as possible reduces the loss, improves device efficiency. Meanwhile, the running noise of the unit can be reduced, and the running economy and safety of the pump station are improved.
Drawings
Fig. 1 is a schematic view of the overall structure of the guide vane structure of the pump of the present invention.
Fig. 2 is a schematic view of the guide vane blade of the present invention.
Wherein, 1-hub, 2-wheel flange, 3-guide vane, 4-water flow inlet direction, 5-water flow outlet direction, and 6-axis.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
The utility model discloses a novel irritate and arrange pump station axial-flow pump rearmounted guide vane body, including wheel hub 1, a plurality of guide vane 3, rim 2, wheel hub 1 passes through the bearing and connects on axle 6, and rim 2 is fixed in 1 outward flange of wheel hub, and on wheel hub 1 was fixed in to its one end interval, reserved the blade mounting hole in 1 department of wheel hub, it is fixed with wheel hub 1 with counter bore screw and locating pin 3 roots of guide vane, and all guide vane 3 all set up between wheel hub 1 and rim 2. The guide vanes 3 are bent guide vanes, and one end of the guide vanes in the water flow outlet direction 5 is sharpened. Sharpen one end of the water flow outlet direction 5, and adjust the water flow direction to enable the water flow to flow out smoothly. In the present embodiment, the number of guide vanes 3 is 7, the guide vanes 3 are designed to have an equal thickness, and the thickness of the guide vanes 3 is set to 4 mm.
One end of the guide vane 3 close to the water flow inlet direction 4 is twisted to one side, and the twist degree is 5-10 degrees. Referring to fig. 2, fig. 2 is a schematic view viewed from a direction a of the schematic view of fig. 1. The guide vanes 3 are arranged in a curved shape, so that the water flow direction is convenient to adjust, the phenomenon of flow separation on the back surfaces of the guide vanes is reduced, and the operation efficiency of the pump device is improved.
In the present embodiment, the hub 1 is a cylindrical body, and the rim 2 is spread toward the water outlet direction 5, and the angle α between the rim and the hub 1 is 4 to 8 degrees. In the present embodiment, the diameter of the hub 1 is 120mm, the diameter of the outer edge of the water inlet is 300mm, the diameter of the outer edge of the water outlet is 330mm, and the included angle between the rim 2 and the hub is 5 degrees when viewed from the water inlet direction 4. The size can be adjusted according to the field requirement when the device is actually manufactured and used.
The minimum distance d of the inlet edge of the rim 2 in the water flow inlet direction 4 from the guide vanes 3 is 4 to 10 mm. Referring to fig. 1, the guide vanes 3 are not adapted to be too close to or too far from the inlet edge of the rim 2, and in this embodiment, the minimum distance d is 5 mm.
The center point of the guide vane 3 is a position which is 0.45L away from one end of the guide vane 3 close to the water flow inlet direction 4, wherein L is the axial length of the guide vane 3. Referring to the center of the guide vane indicated in fig. 2, since the guide vane 3 is provided in the present embodiment in a curved shape and one end thereof is sharpened, the center of the guide vane is at a position 0.45L from the inlet of the vane.
The edge of guide vane 3 all sets up to arc lead angle structure, and the messenger rivers that the arc lead angle can make progress one can more smooth-going flow out, reduce the stator back and take off a class phenomenon.
The utility model relates to a novel irritate and arrange pump station axial-flow pump post-positioned guide vane body when using, install in the outlet side of impeller, rivers trun into axial motion through the rotary motion of the rivers of crooked guide vane 3 with the outflow impeller, turn into partial kinetic energy simultaneously and can press.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.
Claims (9)
1. The utility model provides a novel irritate and arrange pump station axial-flow pump rearmounted guide vane body, includes wheel hub (1), a plurality of guide vane (3), rim (2), wheel hub (1) is connected on axle (6) through the bearing, rim (2) are fixed in wheel hub (1) outward flange, a plurality of guide vane (3) set up in between wheel hub (1) and rim (2), its one end interval is fixed in on wheel hub (1), its characterized in that, guide vane (3) are bent stator, and its one end that is located water outlet direction (5) is sharpened.
2. The novel pump station axial-flow pump postposition guide vane body of claim 1, characterized in that one end of the guide vane (3) close to the water flow inlet direction (4) is twisted to one side, and the degree of twist is 5-10 degrees.
3. The novel pump station axial-flow pump postposition guide vane body of claim 1, characterized in that the rim (2) spreads towards the water outlet direction (5), and the included angle between the rim and the hub (1) is 4 to 8 degrees.
4. The novel pump station axial-flow pump postposition guide vane body of claim 3, characterized in that the rim (2) spreads towards the water outlet direction (5), and the included angle between the rim and the hub (1) is 5 degrees.
5. The novel pumping station axial-flow pump postposition guide vane body according to claim 1, characterized in that the minimum distance from the inlet edge of the rim (2) in the water flow inlet direction (4) to the guide vane (3) is 4 to 10 mm.
6. The novel pumping station axial-flow pump postposition guide vane body according to claim 5, characterized in that the minimum distance from the inlet edge of the rim (2) in the water flow inlet direction (4) to the guide vane (3) is 5 mm.
7. The novel pump station axial-flow pump postposition guide vane body according to claim 1, characterized in that the center point of the guide vane (3) is a position which is 0.45L away from one end of the guide vane (3) close to the water flow inlet direction (4), wherein L is the axial length of the guide vane (3).
8. The novel irrigation and drainage pump station axial-flow pump postposition guide vane body as claimed in any one of claims 1 to 7, wherein the edges of the guide vanes (3) are all arranged into arc-shaped guide angle structures.
9. The novel irrigation and drainage pump station axial-flow pump postposition guide vane body according to any one of claims 1 to 7, characterized in that the number of the guide vanes (3) is 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023134734.9U CN214007591U (en) | 2020-12-23 | 2020-12-23 | Novel post-positioned guide vane body of axial flow pump of irrigation and drainage pump station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023134734.9U CN214007591U (en) | 2020-12-23 | 2020-12-23 | Novel post-positioned guide vane body of axial flow pump of irrigation and drainage pump station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214007591U true CN214007591U (en) | 2021-08-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023134734.9U Active CN214007591U (en) | 2020-12-23 | 2020-12-23 | Novel post-positioned guide vane body of axial flow pump of irrigation and drainage pump station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214007591U (en) |
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2020
- 2020-12-23 CN CN202023134734.9U patent/CN214007591U/en active Active
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