CN209385412U - A kind of axial-flow type smoke exhaust fan - Google Patents
A kind of axial-flow type smoke exhaust fan Download PDFInfo
- Publication number
- CN209385412U CN209385412U CN201822108174.6U CN201822108174U CN209385412U CN 209385412 U CN209385412 U CN 209385412U CN 201822108174 U CN201822108174 U CN 201822108174U CN 209385412 U CN209385412 U CN 209385412U
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- exhaust passage
- air exhaust
- axial
- wall
- flow type
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Abstract
The utility model discloses a kind of axial-flow type smoke exhaust fans, it is related to fire-fighting equipment field, including the motor for being mounted on the intracorporal fan of wall and being connected with fan, the outside of the wall is provided with air exhaust passage, the air exhaust passage is connected with the inside of wall, silencing means is provided in the air exhaust passage, the silencing means includes the multiple muffler plates being arranged between air exhaust passage side wall, and the muffler plate is provided with multiple rows of and interlaced arrangement in air exhaust passage.The section of the muffler plate is U-shaped, and the muffler plate includes two layers of backplate and the noise reduction layer that is arranged among two layers of backplate, is uniformly provided with several ventholes along exhaust passage length direction on the backplate.The utility model has the advantages that sound-deadening and noise-reducing effect is strong.
Description
Technical field
The utility model relates to fire-fighting equipment field, in particular to a kind of axial-flow type smoke exhaust fan.
Background technique
Smoke exhaust fan is mainly used in the inside such as skyscraper, underground garage, subway, tunnel, for fire control smoke exhausting and send
Row's ventilation, smoke exhaust fan can be divided into centrifugal and axial-flow type, the airflow direction and fan blade of axial fan according to its working method
It is axial in the same direction, have the advantages that exhaust effect is strong.
But sound is huge when due to the work of axial-flow type smoke exhaust fan, especially in smoke exhaust process, motor speed is accelerated, work
Make place and many places are in the unsmooth space of the ventilation of an opposing seal, and sound is best in same Propagation effect,
Noise can be propagated for a long time in confined space, it is difficult to eliminate.Noise is excessive not only to influence interpersonal exchange, has an effect on
The physical and mental health of people.
Utility model content
The purpose of the utility model is to provide a kind of axial-flow type smoke exhaust fan, have the advantages that sound-deadening and noise-reducing effect is strong.
The above-mentioned purpose of utility model of the utility model has the technical scheme that
A kind of axial-flow type smoke exhaust fan, including the motor for being mounted on the intracorporal fan of wall and being connected with fan, the wall
The outside of body is provided with air exhaust passage, and the air exhaust passage is connected with the inside of wall, is provided with and disappears in the air exhaust passage
Mixer, the silencing means include the multiple muffler plates being arranged between air exhaust passage side wall, and the muffler plate is logical in air draft
Multiple rows of and interlaced arrangement is provided in road.
By using above-mentioned technical proposal, the air-flow from fan successively transmits between the muffler plate being staggered, and increases
Add its propagation path, constantly refraction, friction, thermal energy can be converted for sound and dissipated, so that with distance when being propagated along silencing means
And gradually decay.
The utility model is further arranged to: the section of the muffler plate is U-shaped.
By using above-mentioned technical proposal, air-flow can be flowed along the cambered surface of muffler plate, and mobility is stronger, will not be to air-flow
It is formed and is stopped, while but also the propagation trajectories of air-flow are more tortuous, sound-deadening and noise-reducing effect is stronger.
The utility model is further arranged to: the muffler plate includes two layers of backplate and disappearing among two layers of backplate is arranged in
Sound-absorbing layer is uniformly provided with several ventholes along air exhaust passage length direction on the backplate.
By using above-mentioned technical proposal, air-flow flows through noise reduction layer by venthole, and air-flow is rubbed and glued in noise reduction layer
Resistance hysteresis and gradually decay, achieve the purpose that sound-deadening and noise-reducing.
The utility model is further arranged to: it is connected separately with riser on the roof and bottom wall of the air exhaust passage, it is described
Riser is connected on corresponding muffler plate far from one end of air exhaust passage.
By using above-mentioned technical proposal, air-flow can be effectively prevent to be formed between muffler plate and the inner wall of air exhaust passage
Gap in when passing through, issue sharp sound, form Karman vortex street effect.
The utility model is further arranged to: the position setting in the air exhaust passage between silencing means and wall
There is filter device, the filter device includes tubular wine wheel, adsorption layer and shaft, and the tubular wine wheel includes flabellum and is used for
The upper terminal pad and lower terminal pad of flabellum are connected, the shaft is threaded through between terminal pad and lower terminal pad, and the shaft
It is rotatably connected between the roof of air exhaust passage and bottom wall；The adsorption layer is cylindric and is set in shaft.
By using above-mentioned technical proposal, when the air-flow from fan passes through tubular wine wheel, by its internal shaft
Adsorption layer, adsorption layer by air-flow dust and objectionable impurities be filtered, make discharge air have certain degree of purity, subtract
Gently to the pollution of atmosphere.
The utility model is further arranged to: in 10 ° of -30 ° of inclination angles settings between the flabellum and the radial direction of tubular wine wheel.
By using above-mentioned technical proposal, tubular wine wheel can the rotation under the promotion of air-flow, while adsorption layer is followed and is passed through
Stream wind wheel rotates together, so that any position in absorption layer surface can be utilized effectively, prevents dust and impurity from existing
Absorption layer surface is unevenly distributed.
The utility model is further arranged to: the air exhaust passage is provided with discharge pipe far from one end of wall, it is described go out
The open end of air hose tilts down setting, and is a kind of curved pipe.
By using above-mentioned technical proposal, Open Side Down, and inclined curved pipe can prevent from being entered in rainy day rainwater by discharge pipe
In air exhaust passage, make the equipment of channel interior get rusty or short circuit.
The utility model is further arranged to: shutter board, the leaf of the shutter board are provided at the nozzle of the discharge pipe
Piece tilts down setting.
By using above-mentioned technical proposal, shutter board is set and tilts down blade, rainwater can be further prevented
Into, when rainwater is fallen on the blade of shutter board, can be slid downwards along blade to ground, in channel circuit and motor into
Row protection.
The utility model is further arranged to: the side in the discharge pipe close to air exhaust passage is provided with filter screen.
By using above-mentioned technical proposal, it can prevent extraneous insect or sundries from being entered in air exhaust passage by discharge pipe,
Influence the normal operation of equipment.
In conclusion the advantageous effects of the utility model are as follows:
1. sound-deadening and noise-reducing can be played the role of by the muffler plate that is staggered in air exhaust passage；
2. can speed up air-flow by opening up venthole, and the sandwiched noise reduction layer between two layers of muffler plate on muffler plate
Flowing, while achieving the purpose that noise reduction；
3. the dust impurities in air-flow effectively can be filtered by the way that adsorption layer is arranged in tubular wine wheel.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the utility model.
Fig. 2 is the diagrammatic cross-section to indicate connection relationship inside filter device.
Fig. 3 is the structural schematic diagram of silencing means.
In figure, 1, fan；100, wall；2, motor；200, air exhaust passage；3, filter device；31, tubular wine wheel；311,
Flabellum；312, upper terminal pad；313, lower terminal pad；314, it covers；3141, drainage hole；315, connecting shaft；32, adsorption layer；33,
Shaft；34, baffle ring；35, support wheel；351, lantern ring；36, water tank；361, flow valve；4, silencing means；41, muffler plate；411,
Backplate；412, noise reduction layer；413, venthole；42, riser；5, discharge pipe；51, shutter board；52, filter screen.
Specific embodiment
The utility model is described in further detail below in conjunction with attached drawing.
A kind of axial-flow type smoke exhaust fan, as shown in Fig. 1, including the fan 1 and control wind being mounted in roof wall 100
The motor 2 of 1 rotation of fan, the outside of wall 100 are provided with air exhaust passage 200, the channel phase of air exhaust passage 200 and installation fan 1
It is connected to, the side in air exhaust passage 200 close to fan 1 is provided with filter device 3, and filter device 3 is arranged far from the side of fan 1
There is the silencing means 4 that noise reduction process is carried out to exhaust process, air exhaust passage 200 is turned under far from the side opening edge of wall 100
Folding is formed with discharge pipe 5, and discharge pipe 5 is a kind of arcuation pipeline and is smoothly connected with air exhaust passage 200.The open end of discharge pipe 5
Shutter board 51 is further fixedly arranged at face, the 45 degree of settings obliquely of the blade on shutter board 51, so that the open channel between blinds
In being arranged obliquely, rainwater can be effectively prevent to enter in air exhaust passage 200；Discharge pipe 5 is set close to the side of air exhaust passage 200
It is equipped with filter screen 52, filter screen 52 is fixedly connected on the inner wall of discharge pipe 5, and extraneous insect or sundries can be prevented by outlet air
Pipe 5 enters in air exhaust passage 200, influences the normal operation of equipment.
As shown in Fig. 2, filter device 3 includes tubular wine wheel 31 and the adsorption layer 32 being arranged in inside tubular wine wheel 31,
Tubular wine wheel 31 includes flabellum 311 and the upper terminal pad 312 and lower terminal pad 313 that are connected to 311 both ends of flabellum, upper terminal pad
312 and the centre of lower terminal pad 313 be fixedly installed shaft 33, be provided on the bottom wall of air exhaust passage 200 and accommodate shaft 33
Groove, tubular wine wheel 31 are rotatably arranged in air exhaust passage 200, and flabellum 311 is angled with the radial direction of tubular wine wheel 31
Be obliquely installed, in the present embodiment inclination angle be 20 °, enable the air-flow from fan 1 push tubular wine wheel 31 around the shaft 33 from
Turn；Adsorption layer 32 is hollow tubular and is set in shaft 33 that adsorption layer 32 can be ventilative using sponge or fiber cloth etc.
And there is the material of filtering adsorption function, the centre of upper terminal pad 312 is removably connected with capping 314, capping 314 and upper connection
Disk 312 is coaxially disposed, and is covered and is fixed with connecting shaft 315 on 314 central axis, and the lower part of connecting shaft 315 is provided with external screw thread,
It opens up fluted on the top end face of shaft 33, internal screw thread is provided on groove inner wall, connecting shaft 315 is threaded in shaft 33
On；The top of air exhaust passage 200 offers through-hole corresponding with upper terminal pad 312, has on the inner wall of through-hole around circumferentially fixed
One circle baffle ring 34, takes on the upper surface of baffle ring 34 and is placed with support wheel 35, the side wall of support wheel 35 with through-hole wall is smooth is bonded, branch
It is provided with lantern ring 351 at the center of support wheel 35, is fixed between lantern ring 351 and support wheel 35 by connecting rod, 351 company of being set in of lantern ring
In spindle 315.
The top of support wheel 35 is provided with water tank 36, covers and is uniformly provided with several drainage holes 3141 on 314, in water tank 36
Water flow adsorption layer 32 can be soaked, adsorption effect is enhanced along be flowed down into adsorption layer 32 by drainage hole 3141.Water tank
36 lower part is additionally provided with flow valve 361, and the speed that control water flow can be facilitated to permeate downwards by flow valve 361 is specifically being answered
In, since the air-flow from fan 1 persistently blows adsorption layer 32, turn-on flow rate valve 361 makes water flow continue to permeate downwards, can
It prevents adsorption layer 32 to be air cured, reduces filtering adsorption effect.
As shown in the picture, silencing means 4 includes the muffler plate 41 being fixed between 200 two sidewalls of air exhaust passage, muffler plate
41 be U-shaped setting, and the staggered arrangement between 200 side wall of air exhaust passage, and air-flow is when by silencing means 4, along eliminating the noise
The cambered surface of plate 41 is flowed to two sides, into next row muffler plate 41 along the surface flow of next row muffler plate 41 and from muffler plate 41
Between gap in pass through, noise along muffler plate 41 propagate when, increase its propagation path, constantly refraction, friction, sound can be converted
It dissipates for thermal energy, so that gradually decaying when being propagated along silencing means 4 with distance.
Each muffler plate 41 includes two layers of backplate 411 and the noise reduction layer 412 being folded between two layers of backplate 411, two layers of shield
Venthole 413 is uniformly provided on plate 411, venthole 413 is arranged along the length direction of air exhaust passage 200, and air-flow is by venthole
413 flow through noise reduction layer 412, and air-flow is gradually decayed in noise reduction layer 412 by friction and viscosity resistance, reach the mesh of sound-deadening and noise-reducing
's.Be respectively connected with riser 42 between the roof and bottom wall of air exhaust passage 200 and corresponding muffler plate 41, the structure of riser 42 with disappear
Sound plate 41 is consistent, passes through in the gap that air-flow can be effectively prevent to be formed between muffler plate 41 and the inner wall of air exhaust passage 200
When, sharp sound is issued, Karman vortex street effect is formed.
The implementation principle of the present embodiment are as follows: in smoke exhaust fan work, air-flow flows through tubular wine wheel 31, due to flabellum 311
At an angle with airflow direction, the rotation under the promotion of air-flow of tubular wine wheel 31, air-flow enter the inside of tubular wine wheel 31
And pass through adsorption layer 32, the impurity in air-flow is filtered, impurity is adhered on adsorption layer 32, and filtered air is from through-flow
The other side of wind wheel 31 is pierced by, and is carried out sound-deadening and noise-reducing processing by silencing means 4 and is discharged from discharge pipe 5；It is inhaled on adsorption layer 32
When attached impurity is excessive, needs to replace adsorption layer 32, support wheel 35 removed, then turn connecting shaft 315 by its together with
Capping 314 is removed together, and adsorption layer 32 is finally taken out to replacement from shaft 33.
The embodiment of present embodiment is the preferred embodiment of the utility model, and not limitation is originally practical new according to this
The protection scope of type, therefore: the equivalence changes that all structures, shape, principle according to the utility model are done should all be covered by practical
Within novel protection scope.
Claims (9)
1. a kind of axial-flow type smoke exhaust fan, including the fan (1) being mounted in wall (100) and the electricity being connected with fan (1)
The outside of machine (2), the wall (100) is provided with air exhaust passage (200), and the air exhaust passage (200) is interior with wall (100)
Portion is connected, it is characterised in that: is provided with silencing means (4) in the air exhaust passage (200), the silencing means (4) includes
Multiple muffler plates (41) between air exhaust passage (200) side wall are set, and the muffler plate (41) sets in air exhaust passage (200)
It is equipped with multiple rows of and interlaced arrangement.
2. a kind of axial-flow type smoke exhaust fan according to claim 1, it is characterised in that: the section of the muffler plate (41) is
U-shaped.
3. a kind of axial-flow type smoke exhaust fan according to claim 2, it is characterised in that: the muffler plate (41) includes two layers
Backplate (411) and the setting noise reduction layer (412) intermediate in two layers backplate (411) are uniformly provided on the backplate (411) several
Along the venthole (413) of air exhaust passage (200) length direction.
4. a kind of axial-flow type smoke exhaust fan according to claim 3, it is characterised in that: the top of the air exhaust passage (200)
It is connected separately on wall and bottom wall riser (42), the riser (42) is connected to pair far from the one end of air exhaust passage (200)
On the muffler plate (41) answered.
5. a kind of axial-flow type smoke exhaust fan according to claim 1, it is characterised in that: the interior position of the air exhaust passage (200)
Position between silencing means (4) and wall (100) is provided with filter device (3), and the filter device (3) includes through-flow wind
Take turns (31), adsorption layer (32) and shaft (33), the tubular wine wheel (31) includes flabellum (311) and for connecting flabellum
(311) upper terminal pad (312) and lower terminal pad (313), the shaft (33) are threaded through terminal pad (312) and lower terminal pad
(313) between, and the shaft (33) is rotatably connected between the roof and bottom wall of air exhaust passage (200)；The adsorption layer
(32) it is cylindric and is set on shaft (33).
6. a kind of axial-flow type smoke exhaust fan according to claim 5, it is characterised in that: the flabellum (311) and through-flow wind
It takes turns between the radial direction of (31) in 10 ° of -30 ° of inclination angles settings.
7. a kind of axial-flow type smoke exhaust fan according to claim 1, it is characterised in that: the air exhaust passage (200) is separate
One end of wall (100) is provided with discharge pipe (5), and the open end of the discharge pipe (5) tilts down setting, and is a kind of arc
Pipe.
8. a kind of axial-flow type smoke exhaust fan according to claim 7, it is characterised in that: at the nozzle of the discharge pipe (5)
It is provided with shutter board (51), the blade of the shutter board (51) tilts down setting.
9. a kind of axial-flow type smoke exhaust fan according to claim 7, it is characterised in that: close to row in the discharge pipe (5)
The side in wind channel (200) is provided with filter screen (52).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822108174.6U CN209385412U (en) | 2018-12-14 | 2018-12-14 | A kind of axial-flow type smoke exhaust fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822108174.6U CN209385412U (en) | 2018-12-14 | 2018-12-14 | A kind of axial-flow type smoke exhaust fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209385412U true CN209385412U (en) | 2019-09-13 |
Family
ID=67872245
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822108174.6U Expired - Fee Related CN209385412U (en) | 2018-12-14 | 2018-12-14 | A kind of axial-flow type smoke exhaust fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209385412U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112901561A (en) * | 2019-11-19 | 2021-06-04 | 英业达科技有限公司 | Soundproof window and heat dissipation structure |
-
2018
- 2018-12-14 CN CN201822108174.6U patent/CN209385412U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112901561A (en) * | 2019-11-19 | 2021-06-04 | 英业达科技有限公司 | Soundproof window and heat dissipation structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190913 Termination date: 20201214 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |