CN210889392U - Induced fan of subway - Google Patents
Induced fan of subway Download PDFInfo
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- CN210889392U CN210889392U CN201921725246.XU CN201921725246U CN210889392U CN 210889392 U CN210889392 U CN 210889392U CN 201921725246 U CN201921725246 U CN 201921725246U CN 210889392 U CN210889392 U CN 210889392U
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Abstract
The utility model discloses an induced fan of subway, including the main tank body, be provided with the baffle in the main tank body, the baffle is cut apart into wind channel and lower wind channel with the main tank body, and the wind channel front end is equipped with the air outlet, and the wind channel tail end is equipped with the air intake down, is equipped with the vent between wind channel and the lower wind channel, is provided with centrifugal fan in the wind channel, and centrifugal fan is located the vent directly over, and the lateral wall in wind channel and lower wind channel all is provided with the abatvoix, is equipped with in the lower wind channel and cuts apart into the aviation baffle of two halves with the air inlet direction is parallel. The subway induction fan is characterized in that air is fed into the lower air duct and is discharged from the upper air duct through the vent after the centrifugal fan is started, noise is reduced remarkably after the acoustic board is installed, turbulence is reduced by the aid of the air guide plate, air flows more stably and smoothly, noise is further reduced, air-out jet speed is increased, performance is improved remarkably, and the subway induction fan is suitable for being used on subways.
Description
Technical Field
The utility model belongs to the technical field of the fan, specifically a fan is induced to subway.
Background
An induction fan: also known as jet fans and relay fans. It is induced to carry out air transmission. The air volume of the air conditioner is very small. The air purifier is commonly used in a ventilation system of a garage in public facilities, and is used for uniformly stirring and removing local air dead corners so as to improve local air. The working principle of the air-conditioning system is that a plurality of directional high-speed air flows emitted by induction fan nozzles which are designed and properly arranged in a system induce outdoor fresh air or treated air to be sent to a required area under the condition of no air pipe, so that the optimal indoor air flow organization is realized, and the efficient and economic ventilation and air exchange effects are achieved. The subway induction fan is an induction fan used on a subway and aims to realize ventilation in the subway. Because the subway is public transport equipment, the requirement produces the noise little, and the shooting speed is big, and the noise that current induction fan produced is great, and the shooting speed is little, is difficult to satisfy and uses on the subway.
Disclosure of Invention
The utility model discloses it is not enough to prior art, provide an induced fan of subway, this kind of induced fan can show the noise that reduces the fan, effectively improves the air current and penetrates the speed, is suitable for and uses on the subway.
In order to solve the technical problem, the utility model discloses a following technical scheme can solve: the utility model provides a subway induction fan, includes the main tank body, be provided with the baffle in the main tank body, the baffle will the main tank body is cut apart into upper air duct and lower wind channel, the upper air duct front end is equipped with the air outlet, the wind channel tail end is equipped with the air intake down, be equipped with the vent between upper air duct and the lower wind channel, be provided with centrifugal fan in the upper air duct, centrifugal fan is located directly over the vent, the lateral wall of upper air duct and lower wind channel all is provided with the abatvoix, be equipped with in the lower wind channel with the air inlet direction parallel and will the vent is cut apart into two aviation baffles. The subway induction fan is characterized in that air is fed into the lower air duct and is discharged from the upper air duct through the vent after the centrifugal fan is started, noise is reduced remarkably after the acoustic board is installed, turbulence is reduced by the aid of the air guide plate, air flows more stably and smoothly, noise is further reduced, air-out jet speed is increased, performance is improved remarkably, and the subway induction fan is suitable for being used on subways.
In the above technical scheme, preferably, the air outlet of the main box body is connected with an extension box body, and the aperture of the extension box body is gradually reduced along the air outlet direction. By adopting the structure, the air flow is guided by the extension box body, and the air outlet jet speed is further increased.
In the above technical solution, preferably, the inner wall of the extension box body is also provided with a sound absorption plate. The sound-absorbing board is arranged on the inner wall of the extension box body, so that noise is further reduced.
In the above technical scheme, preferably, a flow guide volute plate is arranged at the tail of the upper air duct, and two ends of the flow guide volute plate respectively abut against the top of the main box body and the partition plate. Set up the water conservancy diversion scroll board and play the supporting role on the one hand, prevent that the main tank body from warping because of bearing centrifugal fan's gravity, prevent in addition that the wind channel is inboard to be wrapped up in for the air flow is more smooth and easy, can enough reduce the noise, also makes the air-out jet speed promote.
In the above technical solution, preferably, the flow guide scroll is arranged in a circular arc shape with the center of the rotating shaft of the centrifugal fan as a circle center.
In the above technical scheme, preferably, a fan mounting opening is arranged on the upper air duct and located right above the ventilation opening, and the centrifugal fan is fixed on the fan mounting opening. The structure can facilitate the installation and maintenance of the centrifugal fan.
Among the above-mentioned technical scheme, it is preferred, the air intake department in wind channel is provided with the filter screen down. Adopt this structure to be used for filtering the air of circulation, promote air quality.
In the above technical scheme, it is preferable that air intake one side in wind channel articulates there is the rotating frame down, the air intake opposite side in wind channel down with the rotating frame passes through the fix with screw, the filter screen clamp is located the rotating frame with between the air intake. Adopt the change filter screen that this structure can be convenient.
In the above technical solution, preferably, the sound-absorbing plate is a sound-absorbing cotton layer wrapped by a metal sheet having holes. Adopt this structure to make and inhale the sound cotton quilt and fix in the metal skin, prevent to inhale the sound cotton quilt air and blow away to it is more convenient to install.
In the above technical scheme, preferably, one side of the partition board close to the air inlet is an air guide inclined plate, and the air guide inclined plate gradually decreases along the air inlet direction and the distance between the main box body bottom plate and the partition board. Adopt this structure to play the effect of expanding air intake area and gathering air current for the air-out is penetrated fast and is promoted.
Compared with the prior art, the utility model, following beneficial effect has: the subway induction fan is characterized in that air is fed into the lower air duct and is discharged from the upper air duct through the vent after the centrifugal fan is started, noise is reduced remarkably after the acoustic board is installed, turbulence is reduced by the aid of the air guide plate, air flows more stably and smoothly, noise is further reduced, air-out jet speed is increased, performance is improved remarkably, and the subway induction fan is suitable for being used on subways.
Drawings
Fig. 1 is a schematic perspective structural view of a front view of an embodiment of the present invention.
Fig. 2 is a schematic top perspective view of an embodiment of the present invention.
Fig. 3 is a schematic view of a cross-sectional structure of the centrifugal fan not installed in the embodiment of the present invention.
Detailed Description
The invention will be described in further detail with reference to the following detailed description and accompanying drawings: referring to fig. 1 to 3, a subway induction fan comprises a main box body 1, a partition plate 2 is arranged in the main box body 1, the main box body 1 is divided into an upper air duct 11 and a lower air duct 12 by the partition plate 2, an air outlet 111 is arranged at the front end of the upper air duct 11, an air inlet 121 is arranged at the tail end of the lower air duct 12, an air guide inclined plate 22 is arranged on one side of the partition plate 2 close to the air inlet 121, and the distance between the air guide inclined plate 22 and the bottom plate of the main box body 1 is gradually reduced along the air inlet direction. The tail part of the partition board 2 is set to be the air guide inclined plate 22 which plays the roles of expanding the area of the air inlet 121 and gathering air flow, so that the air outlet jet speed is improved.
A vent 21 is arranged between the upper air duct 11 and the lower air duct 12, a fan mounting opening 112 is arranged on the upper air duct 11 and right above the vent 21, the centrifugal fan 3 is fixed on the fan mounting opening 112, sound-absorbing boards 4 are arranged on the side walls of the upper air duct 11 and the lower air duct 12, and an air deflector 5 which is parallel to the air inlet direction and divides the vent 21 into two parts is arranged in the lower air duct 12. Turbulence is reduced by arranging the air guide plate, air flows more stably and smoothly, noise is effectively reduced, air outlet jet speed is increased, and performance is remarkably improved.
The air outlet 111 of the main box 1 is connected with an extension box 6, the aperture of the extension box 6 is gradually reduced along the air outlet direction, the inner wall of the extension box 6 is also provided with a sound-absorbing plate 4, and in the embodiment, the sound-absorbing plate 4 is a sound-absorbing cotton layer 42 wrapped by a metal sheet 41 with holes. The noise of such a subway induction fan is significantly reduced after the installation of the sound-absorbing plate.
The tail part of the upper air duct 11 is provided with a flow guide spiral plate 7, the flow guide spiral plate 7 is arranged in a circular arc shape by taking the center of a rotating shaft of the centrifugal fan 3 as a circle center, and two ends of the flow guide spiral plate 7 are respectively abutted against the top of the main box body 1 and the partition plate 2. Set up water conservancy diversion worm plate 7 and play the supporting role on the one hand, prevent that main tank 1 from warping because of bearing centrifugal fan 3's gravity, prevent in addition that 11 inboards in the wind in last wind channel for the air flow is more smooth and easy, can enough reduce the noise, also makes the air-out jet speed promote.
One side of the air inlet of the lower air duct 12 is hinged with a rotating frame 9, the other side of the air inlet of the lower air duct 12 is fixed with the rotating frame 9 through screws, and the filter screen 8 is clamped between the rotating frame 9 and the air inlet 121. Through setting up the air that filter screen 8 can filter the circulation, promote the air quality to this kind of mode that rotating frame 9 pushed down filter screen 8 can be convenient change filter screen 8.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. The utility model provides a subway induction fan which characterized in that: the air conditioner is characterized by comprising a main box body (1), wherein a partition plate (2) is arranged in the main box body (1), the partition plate (2) divides the main box body (1) into an upper air channel (11) and a lower air channel (12), an air outlet (111) is arranged at the front end of the upper air channel (11), an air inlet (121) is arranged at the tail end of the lower air channel (12), a vent (21) is arranged between the upper air channel (11) and the lower air channel (12), a centrifugal fan (3) is arranged in the upper air channel (11), the centrifugal fan (3) is positioned right above the vent (21), sound-absorbing plates (4) are arranged on the side walls of the upper air channel (11) and the lower air channel (12), and air guide plates (5) which are parallel to the air inlet direction and divide the vent (21) into two halves are arranged in the lower air.
2. The subway induction fan as claimed in claim 1, wherein: the air outlet (111) of the main box body (1) is connected with an extension box body (6), and the caliber of the extension box body (6) is gradually reduced along the air outlet direction.
3. The subway induction fan as claimed in claim 2, wherein: and the inner wall of the extension box body (6) is also provided with a sound absorption plate (4).
4. The subway induction fan as claimed in claim 1, wherein: the tail part of the upper air duct (11) is provided with a flow guide worm plate (7), and two ends of the flow guide worm plate (7) are respectively abutted against the top of the main box body (1) and the partition plate (2).
5. The subway induction fan as claimed in claim 4, wherein: the flow guide volute plate (7) is arranged in a circular arc shape by taking the center of a rotating shaft of the centrifugal fan (3) as a circle center.
6. The subway induction fan as claimed in claim 1, wherein: a fan mounting opening (112) is formed in the upper air duct (11) and located right above the ventilation opening (21), and the centrifugal fan (3) is fixed to the fan mounting opening (112).
7. The subway induction fan as claimed in claim 1, wherein: and a filter screen (8) is arranged at the air inlet (121) of the lower air duct (12).
8. The subway induction fan as claimed in claim 7, wherein: air intake one side in wind channel (12) is articulated to have rotating frame (9) down, the air intake opposite side in wind channel (12) down with rotating frame (9) pass through the fix with screw, filter screen (8) press from both sides and locate rotating frame (9) with between air intake (121).
9. The subway induction fan as claimed in claim 1 or 3, wherein: the sound-absorbing board (4) is a sound-absorbing cotton layer (42) wrapped by a metal sheet (41) with holes.
10. The subway induction fan as claimed in claim 1, wherein: one side of the partition board (2) close to the air inlet (121) is provided with an air guide inclined plate (22), and the air guide inclined plate (22) is gradually reduced along the air inlet direction and the distance between the bottom plates of the main box body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921725246.XU CN210889392U (en) | 2019-10-15 | 2019-10-15 | Induced fan of subway |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921725246.XU CN210889392U (en) | 2019-10-15 | 2019-10-15 | Induced fan of subway |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210889392U true CN210889392U (en) | 2020-06-30 |
Family
ID=71320414
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921725246.XU Active CN210889392U (en) | 2019-10-15 | 2019-10-15 | Induced fan of subway |
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| Country | Link |
|---|---|
| CN (1) | CN210889392U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110552906A (en) * | 2019-10-15 | 2019-12-10 | 浙江上建风机有限公司 | Induced fan of subway |
| CN111911432A (en) * | 2020-07-01 | 2020-11-10 | 徐兴勇 | Low-noise air blower |
-
2019
- 2019-10-15 CN CN201921725246.XU patent/CN210889392U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110552906A (en) * | 2019-10-15 | 2019-12-10 | 浙江上建风机有限公司 | Induced fan of subway |
| CN111911432A (en) * | 2020-07-01 | 2020-11-10 | 徐兴勇 | Low-noise air blower |
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