CN205371106U - Axial -flow fan anti -surge annular device - Google Patents
Axial -flow fan anti -surge annular device Download PDFInfo
- Publication number
- CN205371106U CN205371106U CN201620084696.5U CN201620084696U CN205371106U CN 205371106 U CN205371106 U CN 205371106U CN 201620084696 U CN201620084696 U CN 201620084696U CN 205371106 U CN205371106 U CN 205371106U
- Authority
- CN
- China
- Prior art keywords
- surge
- cylinder
- thick bamboo
- rear end
- axial
- 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 - Fee Related
Links
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses an axial -flow fan anti -surge annular device for axial -flow fan such as subway, colliery tunnel prevent the device of surging, including the influent stream section of thick bamboo of cylinder, with the perpendicular ring shape transition piece of being connected in influent stream section of thick bamboo rear end, an anti -surge section of thick bamboo that links to each other with transition piece outer lane, the draft tube that links to each other with an anti -surge section of thick bamboo, with an anti -surge section of thick bamboo through the water conservancy diversion circle that a plurality of vibration -damping sheet of breathing heavily link to each other, breathe heavily vibration -damping sheet for the even setting rectangular piece at anti -surge section of thick bamboo inner wall. The utility model discloses an axial -flow fan anti -surge annular device can reduce the resistance of tuber pipe, prevents that the fan from producing to surge, the vibrations of having avoided each part of fan to arouse because of surging, and noise abatement, fan life has also been improved to the while.
Description
Technical field
This utility model relates to a kind of anti-surge installation, prevents the device of surge in particular for axial fans such as subway, tunnels, colliery.
Background technology
Subway, colliery tunnel in use axial fan, axial fan airduct resistance become big time fan delivery can be made to reduce.In fan delivery less than setting, and inlet and outlet pressure is when reaching surge pressure ratio, blower fan will produce surge phenomenon because of part or all of airflow reflux, this surge phenomenon has a strong impact on the normal use of axial flow blower, make relative vibration between each parts of axial flow blower, produce noise, and have a strong impact on the service life of each parts.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of axial fan anti-surge ring device, it is possible to reduce the resistance of airduct, it is prevented that blower fan produces surge.
For solving above-mentioned technical problem, technical solution adopted in the utility model is:
Axial fan anti-surge ring device, including columnar influent stream cylinder, with influent stream tube rear end annular connected vertically transition plate, the anti-asthma vibration cylinder being connected with transition plate outer ring, the guide shell being connected with anti-asthma vibration cylinder, the baffle liner that is connected by some surge sheets with anti-asthma vibration cylinder, surge sheet is the rectangular sheet being uniformly arranged on anti-asthma vibration cylinder inwall.
Further improvement of the utility model is in that: described guide shell is the point diameter conically shaped more than rear end diameter；Guide shell front end is connected with the rear end of anti-asthma vibration cylinder, and guide shell rear end is arranged to the annular flange I of connecting fan airduct.
Further improvement of the utility model is in that: the angle α between described guide shell barrel and the barrel of anti-asthma vibration cylinder is 30 ~ 70 degree.
Further improvement of the utility model is in that: described baffle liner is the point diameter conically shaped more than rear end diameter, and the front end of baffle liner is connected with surge sheet.
Further improvement of the utility model is in that: the angle β between pyramid side and the surge length of a film limit of described baffle liner is 70 degree.
Further improvement of the utility model is in that: influent stream drum outer wall arranges the flange II of annular, and the inner circle of flange II is connected with the outer wall vertical of influent stream cylinder.
Owing to adopting technique scheme, have the beneficial effects that produced by this utility model:
Axial fan anti-surge ring device of the present utility model, it is possible to reduce the resistance of airduct, it is prevented that blower fan produces surge, it is to avoid the vibrations that blower fan all parts causes because of surge, reduces noise, also improves service life of fan simultaneously.
Baffle liner of the present utility model, anti-surge cylinder form surge chamber, are uniformly arranged surge sheet at surge intracavity, and gas flows through at surge intracavity, and air-flow is more uniform, reduces resistance.
Accompanying drawing explanation
Fig. 1 is this utility model schematic front view；
Fig. 2 is this utility model cross-sectional schematic；
Fig. 3 is this utility model section view partial structurtes schematic diagram；
Wherein: 1, flange II, 2, influent stream cylinder, 3, transition plate, 4, anti-asthma vibration cylinder, 5, baffle liner, 6, surge sheet, 7, guide shell, 8, flange I.
Detailed description of the invention
Below in conjunction with accompanying drawing, this utility model is described in further details:
Axial fan anti-surge ring device, including influent stream cylinder 2, transition plate 3, anti-asthma vibration cylinder 4, guide shell 7, baffle liner 5 and surge sheet 6.Influent stream cylinder 2 is cylindrical shape, and the outer wall of influent stream cylinder 2 arranges flange II1, flange II1 and is used for connecting current collector, and flange II1 is annular, and the interior circular diameter of flange II1 is identical with the outer diameter of influent stream cylinder 2.The rear end of influent stream cylinder 2 vertically connects the inner circle of transition plate 3, and transition plate 3 is circular ring metal sheet, and the interior circular diameter of transition plate 3 is identical with the outer diameter of influent stream cylinder 2.
Anti-asthma vibration cylinder 4 is cylindrical shape, and the outside diameter of transition plate 3 is identical with anti-asthma vibration cylinder 4 cross section circular diameter, and the outward flange of transition plate 3 connects the front end of anti-asthma vibration cylinder 4, and the length direction of anti-asthma vibration cylinder 4 is vertical with transition plate 3 place disc；Anti-asthma vibration cylinder 4 inwall is uniformly arranged some surge sheets 6, and surge sheet 6 is rectangle, and the length of surge sheet 6 is identical with the length direction of anti-asthma vibration cylinder 4, and the width of surge sheet 6 is identical with the width of transition plate 3；Surge sheet 6 length direction is parallel with anti-asthma vibration cylinder 4 length direction, and face, surge sheet 6 place is vertical with anti-asthma vibration cylinder 4 inwall tangent plane.
Guide shell 7 is hollow round table shape, and outer surface is one section of conical surface, and front/rear end is the circle that diameter is different, and front end is relatively thick, and rear end is thinner.The front elevational sectional diameter of a circle of guide shell 7 is identical with the diameter of anti-asthma vibration cylinder 4, and guide shell 7 front end connects anti-asthma vibration cylinder 4 rear end.Guide shell 7 rear end is slightly thinner than front end, and end bend is uniform cylindrical shape, conveniently arranges flange I8.Angle α between the barrel of guide shell 7 barrel and anti-asthma vibration cylinder 4 is 30 ~ 70 degree.
Flange I8 is for being connected with the airduct of blower fan, and the interior circular diameter of flange I8 is identical with the outer diameter of guide shell 7 rear end, and the inner circle of flange I8 is welded on guide shell 7 rear end.
Baffle liner 5 is arranged on the inside of anti-asthma vibration cylinder 4, and baffle liner 5 is hollow round table shape, and front/rear end is the circle that diameter is different, and thicker rear end, front end is relatively thin, and thicker one end connects surge sheet 6, and baffle liner 5 connects anti-asthma vibration cylinder 4 by surge sheet 6.Such baffle liner 5, anti-asthma vibration cylinder 4 form surge chamber, are uniformly arranged surge sheet 6 at surge intracavity, and gas flows through at surge intracavity, and air-flow is more uniform, reduces resistance.Place, the barrel cross section straight line of baffle liner 5 and the angle on the long limit of surge sheet 6 are 70 degree.
Axial fan anti-surge ring device of the present utility model is arranged on the inlet side of blower fan, is connected with the airduct of the air intake of blower fan, and the air-flow making air inlet is uniform, and resistance reduces, thus avoiding the generation of surge.When underground fan is two-way blower fan, the paired mirror image of this utility model is arranged, and is separately positioned on the left and right sides of blower fan, when the wind direction of blower fan changes, both direction can avoid the generation of surge, decreases the noise of fan operation, improves the service life of blower fan.
Claims (6)
1. axial fan anti-surge ring device, it is characterized in that: including the baffle liner (5) that the guide shell (7) that the anti-asthma vibration cylinder (4) that columnar influent stream cylinder (2) is connected with transition plate (3) outer ring is connected with anti-asthma vibration cylinder (4) is connected by some surge sheets (6) with anti-asthma vibration cylinder (4) with influent stream cylinder (2) rear end annular connected vertically transition plate (3), surge sheet (6) is the rectangular sheet being uniformly arranged on anti-asthma vibration cylinder (4) inwall.
2. axial fan anti-surge ring device according to claim 1, it is characterised in that: described guide shell (7) is the point diameter conically shaped more than rear end diameter；Guide shell (7) front end is connected with the rear end of anti-asthma vibration cylinder (4), and guide shell (7) rear end is arranged to the annular flange I(8 of connecting fan airduct).
3. axial fan anti-surge ring device according to claim 2, it is characterised in that: the angle α between the barrel of described guide shell (7) barrel and anti-asthma vibration cylinder (4) is 30 ~ 70 degree.
4. axial fan anti-surge ring device according to claim 1, it is characterised in that: described baffle liner (5) is the point diameter conically shaped more than rear end diameter, and the front end of baffle liner (5) is connected with surge sheet (6).
5. axial fan anti-surge ring device according to claim 4, it is characterised in that: the angle β between pyramid side and surge sheet (6) the long limit of described baffle liner (5) is 70 degree.
6. axial fan anti-surge ring device according to claim 1, it is characterised in that: influent stream cylinder (2) outer wall arranges the flange II(1 of annular), flange II(1) inner circle be connected with the outer wall vertical of influent stream cylinder (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620084696.5U CN205371106U (en) | 2016-01-28 | 2016-01-28 | Axial -flow fan anti -surge annular device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620084696.5U CN205371106U (en) | 2016-01-28 | 2016-01-28 | Axial -flow fan anti -surge annular device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205371106U true CN205371106U (en) | 2016-07-06 |
Family
ID=56270307
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620084696.5U Expired - Fee Related CN205371106U (en) | 2016-01-28 | 2016-01-28 | Axial -flow fan anti -surge annular device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205371106U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106704243A (en) * | 2017-02-10 | 2017-05-24 | 浙江金盾风机股份有限公司 | Integral anti-surge device for spinning forming of subway axial flow fan |
-
2016
- 2016-01-28 CN CN201620084696.5U patent/CN205371106U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106704243A (en) * | 2017-02-10 | 2017-05-24 | 浙江金盾风机股份有限公司 | Integral anti-surge device for spinning forming of subway axial flow fan |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104454664B (en) | A kind of multi-wing centrifugal fan | |
| CN205503562U (en) | Take centrifugal fan spiral case of water conservancy diversion structure | |
| CN105387003B (en) | A kind of flow guide device of fan and centrifugal blower | |
| CN105423511B (en) | Air-duct apparatus applied to clarifier | |
| CN104806538B (en) | A kind of axial-flow type smoke exhaust fan | |
| CN205371106U (en) | Axial -flow fan anti -surge annular device | |
| CN202057015U (en) | Air outlet structure of indoor unit of air conditioner | |
| CN205047514U (en) | Cross -flow fan blade | |
| CN205956027U (en) | High -efficient low noise axial -flow blower | |
| CN105546613A (en) | Shunting device for extractor hood and cascaded fans applying shunting device | |
| CN210087649U (en) | High-pressure centrifugal fan | |
| CN205316611U (en) | Be applied to air duct device of clarifier | |
| CN102162470B (en) | Pipeline-type axial flow centrifugal fan and eccentric flow guiding method | |
| CN114738317B (en) | Impeller assembly for low-loss centrifugal fan and fan with impeller assembly | |
| CN205536474U (en) | Nuclear power station ventilation system's shock -resistant current equalizer | |
| CN207750266U (en) | A kind of centrifugal blower | |
| CN105066249A (en) | Indoor unit of air conditioner | |
| CN205481216U (en) | Reposition of redundant personnel device and it has this reposition of redundant personnel to use device for range hood | |
| CN206439556U (en) | Low noise air channel | |
| US20200408221A1 (en) | Oblique flow fan | |
| CN104165450A (en) | Power recovery type tubular muffler | |
| CN106958711A (en) | Low noise air channel | |
| CN106338137A (en) | Air improvement device | |
| CN207763210U (en) | Volute tongue, air-duct apparatus and air conditioner indoor unit | |
| CN206429440U (en) | One kind is without spiral case air-conditioning draught fan |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160706 Termination date: 20180128 |