CN211648594U - Space guide vane for axial flow pump - Google Patents
Space guide vane for axial flow pump Download PDFInfo
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- CN211648594U CN211648594U CN201922424094.6U CN201922424094U CN211648594U CN 211648594 U CN211648594 U CN 211648594U CN 201922424094 U CN201922424094 U CN 201922424094U CN 211648594 U CN211648594 U CN 211648594U
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Abstract
The utility model relates to an axial-flow pump space stator field discloses a space stator for axial-flow pump, including the supporter, the surface of supporter has the long blade of several along same circumference equipartition, and the interval between the long blade constitutes the runner, is equipped with the short blade that prevents the fluid diffusion on the runner. The utility model provides a liquid medium unstable problem that flows in space stator runner to the efficiency of axial compressor pump has been improved.
Description
Technical Field
The utility model relates to an axial-flow pump space stator field, more specifically relate to a space stator for axial-flow pump.
Background
The axial-flow pump is a pump which makes liquid conveyed along the axial direction by the action force of the blades of a rotary wheel impeller on the liquid, and is widely applied to a plurality of fields. The change of the flow passage area of the space guide vane of the existing axial flow pump is reduced from big to small, so that a liquid medium which just flows out of an impeller is easy to diffuse, the phenomenon of unstable flow is formed, the energy loss is caused, and the efficiency of the axial flow pump is reduced.
SUMMERY OF THE UTILITY MODEL
Based on the above problem, the utility model provides a space stator for axial-flow pump. The utility model provides a liquid medium unstable problem that flows in space stator runner to the efficiency of axial compressor pump has been improved.
The utility model discloses a realize above-mentioned purpose and specifically adopt following technical scheme:
the utility model provides a space stator for axial-flow pump, includes the supporter, and the surface of supporter has the several long blade along same circumference equipartition, and the interval between the long blade constitutes the runner, is equipped with the short blade that prevents the fluid diffusion on the runner.
The utility model discloses in, the short blade on the runner divide into two parts with the runner import, consequently the flow area of single runner import department has diminished, length because of the short blade is two-thirds of long blade length, so whole runner is approximately the font of falling Y, make the flow area of runner import to the runner export by little grow, and be different from the tradition by the flow area that diminishes greatly, because of the flow area by little grow, so from the liquid medium that the impeller flows out just be difficult to appear the loss of pressure that leads to because of the diffusion when flowing into the runner, thereby the stability that liquid medium flowed in the space stator runner has been guaranteed.
Preferably, the lower surface of the long blade and the lower surface of the short blade are located on the same circumference, and the inlet placement angle formed by the long blade and the support body is the same as the inlet placement angle formed by the short blade and the flow passage.
Preferably, the length of the short blades is two thirds of the length of the long blades.
Preferably, the short vane is provided at a middle portion of the inlet of the flow path.
In a preferred embodiment, the number of the short blades is the same as the number of the long blades.
The utility model has the advantages as follows:
(1) the utility model discloses in, the short blade on the runner divide into two parts with the runner import, consequently the flow area of single runner import department has diminished, length because of the short blade is two-thirds of long blade length, so whole runner is approximately the font of falling Y, make the flow area of runner import to the runner export by little grow, and be different from the tradition by the flow area that diminishes greatly, because of the flow area by little grow, so from the liquid medium that the impeller flows out just be difficult to appear the loss of pressure that leads to because of the diffusion when flowing into the runner, thereby the stability that liquid medium flowed in the space stator runner has been guaranteed.
(2) The utility model discloses the middle part of well runner import sets up short blade and can improve into the flow area by little grow with the tradition by the flow area that diminishes, guarantees the stability that fluid medium flows in the runner from changing flow area, avoids the unstable condition that causes axial-flow pump energy loss of fluid medium flow.
(3) The utility model discloses the import lay angle that well long blade and supporter constitute is the same with the import lay angle that short blade and runner constitute, is favorable to stabilizing the flow state of liquid medium.
(4) The utility model discloses the length of well short blade is that two-thirds of long blade length can make flow area by little grow to be different from the flow area of tradition by big diminishing, because of flow area by little grow, so the condition of diffusion is difficult to appear when liquid medium flows into the runner.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a plan view of fig. 1.
Wherein, 1 support body, 2 long blades, 21 flow channels, 211 flow channel inlet, 212 flow channel outlet, 3 short blades and 4 inlet mounting angles.
Detailed Description
For a better understanding of the present invention, the present invention will be described in further detail with reference to the accompanying drawings and the following embodiments.
Example 1:
referring to fig. 1-2, a space guide vane for an axial-flow pump includes a support body 1, a plurality of long blades 2 are uniformly distributed on the outer surface of the support body 1 along the same circumference, and the distance between the long blades 2 forms a flow channel 21, and a short blade 3 for preventing fluid diffusion is arranged on the flow channel 21.
Preferably, the lower surface of the long vane 2 and the lower surface of the short vane 3 are located on the same circumference, and the inlet placement angle 4 formed by the long vane 2 and the support body 1 is the same as the inlet placement angle 4 formed by the short vane 3 and the flow passage 21.
In a preferred manner, the length of the short blades 3 is two thirds of the length of the long blades 2.
In a preferred embodiment, the short vane 3 is provided at a middle portion of the flow path inlet 211.
In a preferred embodiment, the number of the short blades 3 is the same as the number of the long blades 2.
In this embodiment, since the short blade 3 is disposed in the middle of the channel inlet 211, the channel inlet 211 is divided into two parts by the short blade 3 on the channel 21, so that the channel area at the single channel inlet 211 is reduced, and since the length of the short blade 3 is two thirds of the length of the long blade 2, the whole channel 21 is approximately inverted Y-shaped, so that the channel area from the channel inlet 211 to the channel outlet 212 is increased from small to large, and thus the pressure loss caused by diffusion is not easily generated when the liquid medium flowing out of the impeller flows into the channel 21, thereby ensuring the stability of the liquid medium flowing in the channel 21 and improving the efficiency of the axial flow pump.
Specifically, the number of the short blades 3 is the same as that of the long blades 2, so that the long blades 2 and the short blades 3 are uniformly distributed on the support body 1, and the liquid medium is uniformly collected by the space guide vanes.
Specifically, the inlet placement angle 4 formed by the long blade 2 and the support body 1 is the same as the inlet placement angle 4 formed by the short blade 3 and the flow channel 21, so that the axial flow pump is favorable for controlling the flow of the liquid medium when in work.
Specifically, the length of the short vane 3 is two thirds of the length of the long vane 2, so that the area of the flow passage 21 is changed from small to large, and the area of the flow passage 21 is changed from small to large, so that the pressure loss caused by diffusion is not easy to occur when the liquid medium flows into the flow passage 21.
Specifically, the long blade 2 and the short blade 3 have the same thickness, and the long blade 2 and the short blade 3 have the same thickness, so that the service lives of the long blade 2 and the short blade 3 can be ensured.
Example 2:
referring to fig. 1-2, based on the above embodiments, the present embodiment provides reference parameters of the long blade 2 and the short blade 3, that is, the thicknesses of the long blade 2 and the short blade 3 are the same and are both 8 mm; the inlet mounting angle 4 formed by the long blade 2 and the support body 1 is the same as the inlet mounting angle 4 formed by the short blade 3 and the flow channel 21, and the same angle is 25 degrees; the number of the long blades 2 and the number of the short blades 3 are both 6; the outer diameters of the long blades 2 and the short blades 3 are both 420mm, and the inner diameters thereof are both 150 mm; the long blade 2 is 160mm long.
Specifically, because the angle of the inlet installation angle 4 formed by the long blade 2 and the support body 1 and the angle of the inlet installation angle 4 formed by the short blade 3 and the flow channel 21 are both 25 degrees, when the axial flow pump works, the space guide vane can control the flow of the liquid medium flowing to the flow channel 21;
specifically, the number of the long blades 2 and the number of the short blades 3 are 6, so that the long blades 2 and the short blades 3 are uniformly distributed on the support body 1, and the liquid medium is uniformly collected by the space guide vanes;
specifically, the length of the long blade 2 is 160mm, and the length of the short blade 3 is two thirds of the length of the long blade 2, so that the area of the flow channel 21 from the flow channel inlet 211 to the flow channel outlet 212 is increased from small to large, and therefore, when the liquid medium flows into the flow channel inlet 211, pressure loss caused by diffusion is not easy to occur, and the stability of the liquid medium flowing in the flow channel 21 is ensured.
The rest is the same as example 1, and therefore, will not be described herein.
The embodiment of the present invention is the above. The specific parameters in the above embodiments and examples are only for the purpose of clearly showing the verification process of the present invention, and are not used to limit the protection scope of the present invention, which is still subject to the claims, and all the equivalent structural changes made by using the contents of the specification and drawings of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. The utility model provides a space stator for axial-flow pump, includes supporter (1), the surface of supporter (1) has several long blade (2) along same circumference equipartition, and interval between long blade (2) constitutes runner (21), its characterized in that: the flow passage (21) is provided with a short blade (3) for preventing the fluid from diffusing.
2. A space vane for an axial flow pump according to claim 1, wherein: the lower surface of the long blade (2) and the lower surface of the short blade (3) are located on the same circumference, and an inlet mounting angle (4) formed by the long blade (2) and the support body (1) is the same as an inlet mounting angle (4) formed by the short blade (3) and the flow channel (21).
3. A space vane for an axial flow pump according to claim 1, wherein: the length of the short blade (3) is two thirds of the length of the long blade (2).
4. A space vane for an axial flow pump according to claim 1, wherein: the short blades (3) are arranged in the middle of the runner inlet (211).
5. A space vane for an axial flow pump according to claim 1, wherein: the number of the short blades (3) is the same as that of the long blades (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922424094.6U CN211648594U (en) | 2019-12-27 | 2019-12-27 | Space guide vane for axial flow pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922424094.6U CN211648594U (en) | 2019-12-27 | 2019-12-27 | Space guide vane for axial flow pump |
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| Publication Number | Publication Date |
|---|---|
| CN211648594U true CN211648594U (en) | 2020-10-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201922424094.6U Active CN211648594U (en) | 2019-12-27 | 2019-12-27 | Space guide vane for axial flow pump |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112196832A (en) * | 2020-10-26 | 2021-01-08 | 江苏大学 | Guide vane body with flow distribution sheet |
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2019
- 2019-12-27 CN CN201922424094.6U patent/CN211648594U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112196832A (en) * | 2020-10-26 | 2021-01-08 | 江苏大学 | Guide vane body with flow distribution sheet |
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