CN207195290U - A kind of multi-stage booster Induced fan duct cover - Google Patents
A kind of multi-stage booster Induced fan duct cover Download PDFInfo
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- CN207195290U CN207195290U CN201721119276.7U CN201721119276U CN207195290U CN 207195290 U CN207195290 U CN 207195290U CN 201721119276 U CN201721119276 U CN 201721119276U CN 207195290 U CN207195290 U CN 207195290U
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- duct
- air
- pass
- pass air
- air duct
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Abstract
The utility model discloses a kind of multi-stage booster Induced fan duct cover,Including duct cover body,Duct cover body includes the by-pass air duct pipe and intension deferent connected with some dividers,By-pass air duct pipe end sets blower hood,Right-hand member connects by-pass air duct extension tube,The uniform some screws of assembling hole inner face in blower hood hole,Assembling hole and the by-pass air duct air inlet of by-pass air duct,The entrance connection of main duct,The utility model is reducing pressurizing formula,Blower fan sucks extraneous air to form air flow,Part air flow enters after by-pass air duct replaces fresh air input in tunnel from air outlet output,Part air flow exports after entering interior supercharging duct compression supercharging,Make the stream pressure of output big,Fed distance is remote,And make pressurized air stream gradually soft after being mixed in course of conveying with the air of by-pass air duct,Avoid the formation of vortex,Greatly improve the air-supply efficiency of Induced fan in tunnel.
Description
Technical field
It the utility model is related to a kind of ventilation implementation of class technical field, especially a kind of multi-stage booster Induced fan duct
Cover.
Background technology
It is continual air replacement is carried out in extraneous air input tunnel that Induced fan is set in tunnel, particularly such as the Qin
The long distance tunnel in the ridge Zhonnanshan Mountain, still, the ventilation duct of conventional Induced fan is straight barrel type, and air output is according to the rule of Induced fan
Lattice and power decision, Induced fan through type ventilation duct lack air quantity function of increasing pressure, it is impossible to improve in the Induced fan unit interval
Air output, air-supply efficiency and range.
Utility model content
The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art, there is provided a kind of multi-stage booster Induced fan is contained
Road cover, including duct cover body, duct cover body include the by-pass air duct pipe and intension deferent connected with some dividers, outer culvert
Road pipe end sets blower hood, right-hand member connects by-pass air duct extension tube, and the assembling hole inner face in blower hood hole is uniformly some
Screw, assembling hole connect with the by-pass air duct air inlet of by-pass air duct, the entrance of main duct, and the utility model is reducing pressurizing
Formula, blower fan suck extraneous air to form air flow, and part air flow enters after by-pass air duct makes tunnel from air outlet output
The input of interior fresh air is replaced, and part air flow exports after entering interior supercharging duct compression supercharging, allows the stream pressure of output
Greatly, fed distance is remote, and makes pressurized air stream gradually soft after being mixed in course of conveying with the air of by-pass air duct, avoids the formation of whirlpool
Stream, greatly improve the air-supply efficiency of Induced fan in tunnel.
To reach above-mentioned purpose, the utility model provides a kind of multi-stage booster Induced fan duct cover, including duct cover sheet
Body, the duct cover body include the by-pass air duct pipe and intension deferent connected with some dividers, and the by-pass air duct pipe end is set
Blower hood, right-hand member connection by-pass air duct extension tube, the uniform some screws of assembling hole inner face in the blower hood hole,
The assembling hole connects with the by-pass air duct air inlet of by-pass air duct, the entrance of main duct.
Further set, the divider both ends set the air guide hole that both sides are arc surface.
Further set, the diameter of the by-pass air duct air inlet is more than by-pass air duct air outlet diameter, and the main duct enters
Mouth diameter is more than main duct nozzle diameter.
Further set, the divider is by-pass air duct even partition into some independent air flues.
The beneficial effects of the utility model are：The utility model is reducing pressurizing formula, and blower fan sucks extraneous air to be formed
Air flow, part air flow enters after by-pass air duct replaces fresh air input in tunnel from air outlet output, and part is flowed
Stream of taking offence exports after entering interior supercharging duct compression supercharging, allows the stream pressure of output is big, fed distance is remote, and make pressurized air stream
It is gradually soft after being mixed in course of conveying with the air of by-pass air duct, vortex is avoided the formation of, greatly improves Induced fan in tunnel
Air-supply efficiency.
Brief description of the drawings
Fig. 1 is schematic diagram of the present utility model,
Fig. 2 is Fig. 1 left view；
Fig. 3 is Fig. 1 right view；
Fig. 4 is the schematic diagram of divider in Fig. 1；
Fig. 5 is Fig. 4 top view.
In figure：Duct cover body 1, blower hood 2, by-pass air duct pipe 3, by-pass air duct extension tube 4, intension deferent 5, main duct
51st, main duct spout 52, divider 6, arc surface 61, by-pass air duct 7, by-pass air duct air inlet 71, by-pass air duct air outlet 72, blower fan peace
Fill hole 8, screw 81.
Embodiment
As shown in Fig. 1~Fig. 5：The technical solution of the utility model is described in further detail, a kind of multi-stage booster
Induced fan duct cover, including duct cover body 1, the duct cover body 1 include the by-pass air duct connected with some dividers 6
Pipe 3 and intension deferent 5, the end of by-pass air duct pipe 3 set blower hood 2, right-hand member connection by-pass air duct extension tube 4, the blower hood 2
The uniform some screws 81 of the inner face of assembling hole 8 in hole, the assembling hole 8 and the by-pass air duct air inlet of by-pass air duct 7
71st, the entrance connection of main duct 51, the utility model is reducing pressurizing formula, and blower fan sucks extraneous air to form air flow,
Part air flow enters after by-pass air duct replaces fresh air input in tunnel from air outlet output, and part air flow enters
Exported after interior supercharging duct compression supercharging, allow the stream pressure of output is big, fed distance is remote, and make pressurized air stream in course of conveying
In mixed with the air of by-pass air duct after gradually it is soft, avoid the formation of vortex, greatly improve the air-supply efficiency of Induced fan in tunnel.
The both ends of divider 6 set the air guide hole that both sides are arc surface 61, beneficial to smooth into and out of air-flow, keep away
Exempt to be formed the sinuous flow because of caused by collision.
The diameter of the by-pass air duct air inlet 71 is more than the diameter of by-pass air duct air outlet 72, the inlet diameter of the main duct 51
More than the diameter of main duct spout 52, gradually reduced supercharging after air-flow entrance, and the air-supply efficiency of Induced fan is greatly improved.
The divider 6 into some independent air flues, makes the air-flow of each air flue independently defeated the even partition of by-pass air duct 7
Send, eliminate sinuous flow.
It is described above, the only preferable embodiment of the utility model, but the scope of protection of the utility model is not
This is confined to, any one skilled in the art can readily occur in the technical scope that the utility model discloses
Change or replacement, should all cover within the scope of protection of the utility model.
Claims (4)
- A kind of 1. multi-stage booster Induced fan duct cover, it is characterised in that：Including duct cover body (1), the duct cover body (1) the by-pass air duct pipe (3) and intension deferent (5) connected with some dividers (6) is included, by-pass air duct pipe (3) end sets wind Machine outer cover (2), right-hand member connection by-pass air duct extension tube (4), assembling hole (8) inner face in blower hood (2) hole are equal Some screws of cloth (81), the by-pass air duct air inlet (71) of the assembling hole (8) and by-pass air duct (7), main duct (51) enter Mouth connection.
- A kind of 2. multi-stage booster Induced fan duct cover as claimed in claim 1, it is characterised in that：Divider (6) both ends If both sides are the air guide hole of arc surface (61).
- A kind of 3. multi-stage booster Induced fan duct cover as claimed in claim 1, it is characterised in that：The by-pass air duct air inlet (71) diameter is more than by-pass air duct air outlet (72) diameter, and the inlet diameter of the main duct (51) is more than main duct spout (52) Diameter.
- A kind of 4. multi-stage booster Induced fan duct cover as claimed in claim 1, it is characterised in that：The divider (6) is outer Duct (7) even partition is into some independent air flues.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721119276.7U CN207195290U (en) | 2017-09-03 | 2017-09-03 | A kind of multi-stage booster Induced fan duct cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721119276.7U CN207195290U (en) | 2017-09-03 | 2017-09-03 | A kind of multi-stage booster Induced fan duct cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207195290U true CN207195290U (en) | 2018-04-06 |
Family
ID=61790552
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721119276.7U Active CN207195290U (en) | 2017-09-03 | 2017-09-03 | A kind of multi-stage booster Induced fan duct cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207195290U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108669037A (en) * | 2018-04-10 | 2018-10-19 | 江西绿卫士智能科技有限公司 | A kind of unmanned plane of Novel fruit-tree spraying pesticide |
-
2017
- 2017-09-03 CN CN201721119276.7U patent/CN207195290U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108669037A (en) * | 2018-04-10 | 2018-10-19 | 江西绿卫士智能科技有限公司 | A kind of unmanned plane of Novel fruit-tree spraying pesticide |
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