CN210034731U - Ventilation flow guide elbow - Google Patents
Ventilation flow guide elbow Download PDFInfo
- Publication number
- CN210034731U CN210034731U CN201920599259.0U CN201920599259U CN210034731U CN 210034731 U CN210034731 U CN 210034731U CN 201920599259 U CN201920599259 U CN 201920599259U CN 210034731 U CN210034731 U CN 210034731U
- Authority
- CN
- China
- Prior art keywords
- elbow
- cylinder
- flow guide
- guide plate
- ventilation
- 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.)
- Active
Links
Images
Landscapes
- Pipe Accessories (AREA)
Abstract
A ventilation flow guide elbow is used between a turn and a straight pipe for installing a ventilation pipeline and is characterized in that the elbow consists of a cylinder, a flow guide plate and a connecting flange; both ends of the cylinder are connected with connecting flanges, and the inner cavity of the cylinder is fixedly connected with a guide plate. The utility model discloses can extend the water conservancy diversion route, reduce the resistance, the noise reduction makes the air current vortex disappear, and steady transition is to the straight tube section of downwind direction. The flow guide elbow is of a cylindrical structure and is used for being arranged between the turning straight pipes of the ventilation pipeline to play a role in transition airflow.
Description
Technical Field
The invention belongs to the field of environmental protection. In particular to a ventilation flow guide elbow which is mainly used in an air duct ventilation pipeline and is used as a part of air duct ventilation equipment.
Background
The existing ventilation air duct pipeline is long in path, and generally turns directly to transit when the space trend needs to be changed, so that the gas in the pipeline generates vortex, the resistance is increased, the flow of the gas is influenced, noise is generated, and the difficulty and consumption of the active air supply equipment are further increased. The existing flow guide elbow is characterized in that a plurality of strip-shaped flow guide plates are only axially and fixedly arranged inwards on the end surfaces of a straight pipe section and a bent pipe section, the strip-shaped flow guide plates are in a parallel state, the structure can only play a flow guide role in an air inlet section, and when the flow guide elbow reaches a corner and an air outlet section, airflow begins to be disordered again to generate vortex. In another flow guide elbow, at least one circular arc-shaped flow guide rib is arranged on the inner wall of the middle section joint. The device can stabilize the gas flow and reduce the impact of the gas flow on the equipment, but only acts on the bend section, thereby mainly increasing the resistance of the gas flow, reducing the speed of the gas flow, being incapable of effectively guiding the flow and reducing the turbulence and the vortex of the gas flow.
Disclosure of Invention
In order to solve the problems of insufficient length and poor effect of the guide plate, the invention provides the ventilation guide elbow, the elbow guide path is long, the flow velocity resistance and the impact force can be reduced, the eddy of the airflow disappears, the noise is further reduced, the energy loss is reduced, and the ventilation guide elbow is stably transited to the straight pipe section in the downwind direction.
A ventilation flow guide elbow is used between a turn and a straight pipe for installing a ventilation pipeline and is characterized in that the elbow consists of a cylinder, a flow guide plate and a connecting flange; both ends of the cylinder are connected with connecting flanges, and the inner cavity of the cylinder is fixedly connected with a guide plate.
The ring unit is a wedge-shaped ring, and one side surface of the wedge-shaped ring is narrower than the other side surface; the wide surface is positioned at the convex back position of the bent pipe, and the narrow surface is positioned at the concave position of the bent pipe.
The guide plate is an arc-shaped plate corresponding to the elbow curvature, and the curvature of the arc-shaped plate corresponds to the elbow curvature.
The guide plates are uniformly distributed in the cylinder wall along the turning direction.
The end edges of a plurality of circular ring units are welded together to finally form an elbow cylinder structure. In actual conditions, the number of the circular ring units is selected according to the turning angle to be spliced and welded into elbows with different degrees of curvature. The cylinder wall has the functions of connecting the straight pipe sections at two ends and supporting the guide plate.
The connecting flange is a circular ring and is made of a steel plate, and the diameter of the flange corresponds to that of the cylinder. The circular ring is provided with a plurality of mounting circular holes. A pair of connecting flanges are respectively welded at the ends of the straight pipe and the elbow and are fastened and installed into a whole by using bolts.
The guide plate is formed by a rectangular steel plate roller in a round shape to form an arc-shaped plate corresponding to the bending degree of the elbow, and the guide plate is divided into a middle guide plate and a side guide plate according to different placement positions on the cylinder wall. The middle guide plate is arranged in the middle of the elbow, and the side guide plate is close to the cylinder wall of the elbow.
The invention can lengthen the diversion path, reduce the resistance, reduce the noise, make the air current eddy disappear, the steady transition is to the straight pipe section of the downwind direction. The flow guide elbow is of a cylindrical structure and is used for being arranged between the turning straight pipes of the ventilation pipeline to play a role in transition airflow.
Drawings
FIG. 1 is a schematic view of the installation of a flow elbow of the present invention;
FIG. 2 is an elevational view of a flow elbow of the present invention;
FIG. 3 is an elevational view of the cylindrical wall of the present invention;
FIG. 4 is a view of the internal structure of the elbow of the present invention;
in the figure, 1-horizontal straight pipe, 2-flow guide elbow, 3-vertical pipe, 4-connecting bolt, 21-connecting flange, 22-cylinder wall, 23-middle flow guide plate and 24-side flow guide plate.
Detailed Description
Fig. 1 shows a ventilation flow guide elbow, which is a cylindrical structure and is installed between straight pipe sections of a turning ventilation pipeline to play a role of transition airflow.
As shown in fig. 2, the flow guiding elbow 2 is made of a steel plate with a thickness of 5mm, has a molding diameter of 600mm, and is composed of a cylindrical wall 22, a flow guiding plate and a connecting flange 21.
The internal diameter of the cylinder wall 22 is 600mm, the connecting flanges 21 are welded at both ends of the cylinder wall, 3 guide plates are welded in the inner cavity of the cylinder wall, and the 3 guide plates are uniformly distributed at intervals along the turning direction.
The cylindrical wall is formed by connecting a plurality of wedge-shaped rings.
As shown in fig. 3, the convex back of the wedge-shaped ring is wider than the concave back.
In actual use, 5 circular ring units are selected according to the turning angle, such as 90 degrees, and 3 circular ring units are selected according to 120 degrees to be spliced and welded into elbows with different degrees. The cylinder wall has the functions of connecting the straight pipe sections at two ends and supporting the guide plate.
The connecting flange is a circular ring with the diameter of 600mm and the width of 20mm and is made of a steel plate with the thickness of 5 mm. 12 installation and connection round holes with the diameter of 8mm are arranged on the circular ring. A pair of connecting flanges are respectively welded at the ends of the straight pipe and the elbow and are fastened and installed into a whole by using M6 bolts.
As shown in fig. 4, the guide plate is formed by rolling a rectangular steel plate having a thickness of 5mm into an arc plate corresponding to the bend curvature, and is divided into a middle guide plate 23 and a side guide plate 24 depending on the position of the cylindrical wall. The length and width of the middle guide plate 23 is 1200 x 600mm, the middle guide plate is arranged in the middle of the elbow, the side guide plate 24 is formed by rolling rectangular steel plates with two specifications, namely 800 x 430mm steel plates and 1400 x 430mm steel plates, the side guide plate with the bent 800 x 430mm steel plates is arranged close to the inner side cylinder wall of the elbow, and the side guide plate with the bent 1400 x 430mm steel plates is arranged close to the outer side cylinder wall of the elbow.
Claims (3)
1. A ventilation flow guide elbow is used between a turn and a straight pipe for installing a ventilation pipeline and is characterized in that the elbow consists of a cylinder, a flow guide plate and a connecting flange; both ends of the cylinder are connected with connecting flanges, and the inner cavity of the cylinder is fixedly connected with a guide plate.
2. The ventilation flow-guiding elbow as claimed in claim 1, wherein the cylinder is formed by welding a plurality of ring units, the ring units are wedge-shaped rings, one side surface of each wedge-shaped ring is narrower than the other side surface, the wide surface is located at the convex back position of the elbow, and the narrow surface is located at the concave position of the elbow.
3. The ventilation flow-guiding elbow of claim 1, wherein the flow-guiding plate is an arc-shaped plate corresponding to the elbow curvature, and the curvature of the arc-shaped plate corresponds to the elbow curvature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920599259.0U CN210034731U (en) | 2019-04-28 | 2019-04-28 | Ventilation flow guide elbow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920599259.0U CN210034731U (en) | 2019-04-28 | 2019-04-28 | Ventilation flow guide elbow |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210034731U true CN210034731U (en) | 2020-02-07 |
Family
ID=69362408
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920599259.0U Active CN210034731U (en) | 2019-04-28 | 2019-04-28 | Ventilation flow guide elbow |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210034731U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110206957A (en) * | 2019-04-28 | 2019-09-06 | 山西尚风科技股份有限公司 | A kind of ventilation water conservancy diversion elbow |
-
2019
- 2019-04-28 CN CN201920599259.0U patent/CN210034731U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110206957A (en) * | 2019-04-28 | 2019-09-06 | 山西尚风科技股份有限公司 | A kind of ventilation water conservancy diversion elbow |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210034731U (en) | Ventilation flow guide elbow | |
| CN106523830A (en) | Right-angled elbow provided with flow guiding rib plates | |
| CN104930540A (en) | Diversion structure of smoke inlet of air preheater | |
| CN214745842U (en) | Noise-reducing flow guide device for large-scale complex pipeline | |
| CN2184859Y (en) | Fume pipe bent mounted with flow guide and direction guide blade | |
| CN108644993B (en) | Low flow resistance pipeline device capable of uniformly supplying air | |
| CN203824400U (en) | Heat exchange pipe and insertion piece | |
| CN210014130U (en) | Ventilation end silencer | |
| CN112325398B (en) | Rotational flow synergy device | |
| CN109210309A (en) | A kind of elbow reducing local resistance loss | |
| WO2021179545A1 (en) | Delivery pipe and pumping device | |
| CN110906309B (en) | Nozzle tube panel device with angle for water-cooling wall of spiral tube ring | |
| CN110206957A (en) | A kind of ventilation water conservancy diversion elbow | |
| CN208804377U (en) | A kind of T-type tee tube | |
| CN201884855U (en) | Wear-resistant polyethylene elbow pipe | |
| CN202501161U (en) | Natural gas pipeline in-built general-type noise-elimination device | |
| CN212536334U (en) | A water conservancy diversion formula return bend for compressor export | |
| CN206875021U (en) | A kind of loop-type bellows | |
| CN219933334U (en) | Elbow guide plate structure for adjusting flow state | |
| CN212564884U (en) | High-temperature dust-containing flue gas guiding device | |
| CN215311293U (en) | Flue flow guiding device for active coke desulfurization and denitrification system | |
| CN210599174U (en) | Automobile middle cooling pipe capable of eliminating noise | |
| CN220892282U (en) | Boiler flue vortex device | |
| CN219345831U (en) | Bidirectional high-efficiency downstream device | |
| CN2934874Y (en) | Guiding device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 030032 floor 18, block B, times Freedom Plaza, No. 190, Longxing street, Shanxi Demonstration District, Taiyuan City, Shanxi Province Patentee after: Shangfeng Technology Co.,Ltd. Address before: 030006 6th floor, block B, Gaoxin international, high tech Development Zone, Taiyuan City, Shanxi Province Patentee before: SHANXI SHANGFENG TECHNOLOGY Co.,Ltd. |
|
| CP03 | Change of name, title or address |