CN218237818U - Flow guide elbow - Google Patents
Flow guide elbow Download PDFInfo
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- CN218237818U CN218237818U CN202222392987.9U CN202222392987U CN218237818U CN 218237818 U CN218237818 U CN 218237818U CN 202222392987 U CN202222392987 U CN 202222392987U CN 218237818 U CN218237818 U CN 218237818U
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- arc surface
- arc
- elbow
- flow guide
- flow
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Abstract
The utility model provides a flow guide elbow, which comprises a first arc surface and a second arc surface which are arranged oppositely, and an air inlet and an air outlet which are arranged at two ends of the first arc surface and the second arc surface, wherein the first arc surface extends along the position far away from the center of the flow guide elbow to obtain a first arc surface or the second arc surface extends along the position near the center of the flow guide elbow to obtain a second arc surface, the first arc surface can cover the first arc surface, and the second arc surface can cover the second arc surface; the curvature of the arc of the first cambered surface is 2.13-2.32, the curvature radius of the first cambered surface is changed in the range through CFD numerical simulation calculation after modeling, the local resistance coefficient of the diversion elbow can be effectively reduced, the curvature of the arc of the second cambered surface is 3.29-5.75, the curvature radius of the second arc is changed in the range through CFD numerical simulation calculation after modeling, the local resistance coefficient of the diversion elbow can be effectively reduced, and the energy consumption of a building conveying system is further reduced.
Description
Technical Field
The utility model belongs to air pipe field, concretely relates to water conservancy diversion elbow.
Background
With the rapid development of urbanization in China, the building area is greatly increased, and the proportion of the building energy consumption in the total energy consumption of China is up to one third. Taking a public building as an example, the energy consumption of a fan of a ventilation air-conditioning system accounts for about 20% -40% of the total energy consumption of the building, at present, an air-conditioning pipeline is formed by sequentially splicing a plurality of air pipes, the air pipes are hollow quadrangular with openings at two ends, the radial cross sections of the air pipes are rectangular, the air pipes are mutually perpendicular in pairs when being arranged, the air pipes are usually connected by using elbows to form bends, but the resistance at the bends is larger, and the energy consumption of a building conveying system is still increased.
Disclosure of Invention
Not enough to prior art exists, the utility model aims to provide a water conservancy diversion elbow solves the problem that prior art exists.
In order to solve the technical problem, the utility model discloses a following technical scheme realizes:
a flow guide elbow comprises a first arc surface and a second arc surface which are arranged oppositely, and an air inlet and an air outlet which are arranged at two ends of the first arc surface and the second arc surface, wherein the first arc surface extends along a position far away from the center of the flow guide elbow to obtain a first arc surface or the second arc surface extends along a position close to the center of the flow guide elbow to obtain a second arc surface, the first arc surface can cover the first arc surface, and the second arc surface can cover the second arc surface;
wherein, the curvature of the first cambered surface is 2.13-2.32, and the curvature of the second cambered surface is 3.29-5.75.
Preferably, an arc-shaped flow guide bent plate is arranged in the flow guide elbow, and an opening of the arc-shaped flow guide bent plate faces towards the centers of the first arc surface and the second arc surface.
Preferably, the arc-shaped flow guide bent plate is an arc-shaped flow guide bent plate.
Preferably, the two ends of the arc-shaped flow guide bent plate are arranged at the centers of the air inlet and the air outlet.
Compared with the prior art, the utility model, following technological effect has:
(I) the utility model discloses a flow guide elbow, it obtains first cambered surface along keeping away from flow guide elbow center department extension through first arc surface, the camber variation range of first cambered surface is 2.13 ~ 2.32, through CFD numerical simulation calculation after the modeling, first cambered surface curvature radius changes at above-mentioned within range, local resistance coefficient that can effectual reduction flow guide elbow, perhaps the second arc surface is along being close to flow guide elbow center department extension and obtaining the second cambered surface, the curvature radius of second cambered surface is 3.29 ~ 5.75, through CFD numerical simulation calculation after the modeling, second circular arc curvature radius changes at above-mentioned within range, can effectually reduce the local resistance coefficient of flow guide elbow, further reduce the building conveying system energy consumption.
Drawings
Fig. 1 is a schematic structural view of the flow-guiding elbow of the present invention;
fig. 2 is a schematic view of a first arc structure of the present invention;
FIG. 3 is a schematic view of a second cambered surface structure of the present invention;
FIG. 4 is a graph showing the relationship between the curvature change of the first arc surface and the local resistance coefficient;
FIG. 5 is a graph showing the relationship between the curvature change of the second arc surface and the local resistance coefficient;
the meaning of the individual reference symbols in the figures is:
1-a first arc surface, 2-a second arc surface, 3-a first arc surface, 4-a second arc surface, 5-an arc-shaped diversion bent plate, 6-an air inlet and 7-an air outlet.
The following examples are provided to explain the present invention in further detail.
Detailed Description
The following embodiments of the present invention are given, and it should be noted that the present invention is not limited to the following embodiments, and all the equivalent transformations made on the basis of the technical solution of the present application all fall into the protection scope of the present invention.
As used herein, directional terms such as "inlet", "outlet", "axial", "horizontal" and "vertical" are intended to correspond to a particular direction on the page in the drawings or to a corresponding direction in the space shown in the drawings.
The embodiment is as follows:
a flow guide elbow comprises a first arc surface 1 and a second arc surface 2 which are arranged oppositely, and an air inlet 6 and an air outlet 7 which are arranged at two ends of the first arc surface 1 and the second arc surface 2, wherein the first arc surface 1 extends along a position far away from the center of the flow guide elbow to obtain a first arc surface 3, or the second arc surface 2 extends along a position close to the center of the flow guide elbow to obtain a second arc surface 4, the first arc surface 3 can cover the first arc surface 1, and the second arc surface 2 can cover the second arc surface 4;
wherein, the curvature of the first cambered surface 3 is 2.13-2.32, and the curvature of the second cambered surface 4 is 3.29-5.75.
The diversion elbow of this embodiment, through first arc 1 along keeping away from diversion elbow center department extension and obtaining first cambered surface 3, the radius of curvature variation range of first cambered surface 3 is 2.13 ~ 2.32, through CFD numerical simulation calculation after the modeling, the radius of curvature variation of first cambered surface 3 is in above-mentioned within range, can effectual reduction diversion elbow's local resistance coefficient, or second arc 2 along being close to diversion elbow center department extension and obtaining second cambered surface 4, the radius of curvature of first cambered surface 3 is 3.29 ~ 5.75, through CFD numerical simulation calculation after the modeling, the radius of curvature variation of second circular arc 4 is in above-mentioned within range, can effectual reduction diversion elbow's local resistance coefficient, further reduce building conveying system energy consumption.
After the flow-guiding elbow of the present embodiment is modeled, the flow-guiding elbow is subjected to CFD numerical simulation calculation, as shown in fig. 3, the local resistance coefficient of the solution of the present embodiment is smaller than that of the conventional elbow.
As a preferred scheme of this embodiment, an arc-shaped flow guiding bent plate 5 is arranged in the flow guiding elbow, and an opening of the arc-shaped flow guiding bent plate 5 is arranged toward the centers of the first arc surface 1 and the second arc surface 2.
Wherein, can further promote the local resistance coefficient of the water conservancy diversion elbow of this embodiment through setting up arc water conservancy diversion bent plate.
As a preferable solution of this embodiment, the arc-shaped flow guiding bent plate 5 is an arc-shaped flow guiding bent plate.
Wherein, the circular arc water conservancy diversion bent plate can promote the local resistance coefficient of the water conservancy diversion elbow of this embodiment once more.
As a preferred scheme of this embodiment, two ends of the arc-shaped flow guiding bent plate 5 are disposed at the centers of the air inlet 6 and the air outlet 7.
Wherein, the two ends of the arc-shaped flow guiding bent plate 5 are arranged at the centers of the air inlet 6 and the air outlet 7, so that the local resistance coefficient of the flow guiding elbow of the arc-shaped flow guiding bent plate can reach the maximum.
The working process of the embodiment:
wind enters the flow guide elbow from the air inlet of the embodiment, passes through the flow guide bent plate and flows out from the air outlet.
Claims (4)
1. The flow guide elbow comprises a first arc surface (1) and a second arc surface (2) which are arranged oppositely, and an air inlet (6) and an air outlet (7) which are arranged at two ends of the first arc surface (1) and the second arc surface (2), and is characterized in that the first arc surface (1) extends along the position far away from the center of the flow guide elbow to obtain a first arc surface (3) or the second arc surface (2) extends along the position close to the center of the flow guide elbow to obtain a second arc surface (4), the first arc surface (3) can cover the first arc surface (1), and the second arc surface (2) can cover the second arc surface (4);
wherein, the curvature of the first cambered surface (3) is 2.13-2.32, and the curvature of the second cambered surface (4) is 3.29-5.75.
2. The flow guiding elbow according to claim 1, wherein an arc-shaped flow guiding bent plate (5) is arranged in the flow guiding elbow, and an opening of the arc-shaped flow guiding bent plate (5) faces towards the centers of the first arc surface (1) and the second arc surface (2).
3. Flow directing elbow according to claim 2, characterized in that the curved flow directing bent plate (5) is a circular arc flow directing bent plate.
4. The flow-guiding elbow according to claim 3, characterized in that the two ends of the curved flow-guiding bent plate (5) are arranged at the center of the air inlet (6) and the air outlet (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222392987.9U CN218237818U (en) | 2022-09-08 | 2022-09-08 | Flow guide elbow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222392987.9U CN218237818U (en) | 2022-09-08 | 2022-09-08 | Flow guide elbow |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218237818U true CN218237818U (en) | 2023-01-06 |
Family
ID=84664588
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222392987.9U Active CN218237818U (en) | 2022-09-08 | 2022-09-08 | Flow guide elbow |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218237818U (en) |
-
2022
- 2022-09-08 CN CN202222392987.9U patent/CN218237818U/en active Active
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