CN207510180U - A kind of carriage body air exhaust and noise reduction system - Google Patents
A kind of carriage body air exhaust and noise reduction system Download PDFInfo
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- CN207510180U CN207510180U CN201721328251.8U CN201721328251U CN207510180U CN 207510180 U CN207510180 U CN 207510180U CN 201721328251 U CN201721328251 U CN 201721328251U CN 207510180 U CN207510180 U CN 207510180U
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Abstract
Being applied to supply vehicle, disaster unit etc. the utility model discloses one kind has carriage body structure, need into carriage body ventilation and outside carriage body air draft carriage body air exhaust and noise reduction system, it includes the air exhaust passage being connect with exhaust fan air outlet and the air draft shutter for being set to air exhaust passage air side, the air exhaust passage includes interconnected level-one air draft noise reduction storehouse and two level air draft noise reduction storehouse, several lateral acoustical panels are laid in the level-one air draft noise reduction storehouse, several vertical acoustical panels are laid in the two level air draft noise reduction storehouse.By using level-one air draft noise reduction storehouse and two level air draft noise reduction storehouse, effectively realize classification noise reduction, in two-stage air draft noise reduction storehouse, using the different acoustical panel of cloth set direction, effectively realize to the full of twists and turns of air draft gas channel, in the process of air-flow flowing, acoustical panel carries out absorption noise reduction to vibratory flow noise, it is simple in structure, rationally, air draft excellent noise reduction effect.
Description
Technical field
The utility model is related to a kind of air exhaust and noise reduction systems, more particularly to a kind of to be applied to supply vehicle, disaster unit etc.
With carriage body structure, need into carriage body ventilation and outside carriage body air draft carriage body air exhaust and noise reduction system.
Background technology
With the needs of nation-building and development, the important transportation that special purpose vehicle has become in economic construction is filled with operation
It is standby, there is good development prospect.In recent years, since China's electric power, telecommunications, movement, the increasing construction of Netcom and input need,
Supply vehicle charges emergency vehicle as these industries, is mounted with high-power generator on vehicle, available for communicating, telecommunications, coal mine,
The related emergence power work in oil field plays very important work especially for power-off repairing, power supply caused by accident
With.And the jobs that requires special skills vehicle such as disaster unit, in order to meet it is various in the case of, the demand of operation power supply can be also mounted with
High-power generator, generally use by rotor machine in carriage body structure, the normal work of high-power generator, need by compared with
Big air-flow cools down to unit, and the air-flow after cooling needs that there is the exhaust system of good anti-acoustic capability to discharge air
Carriage body, meanwhile, also noise-reduction is carried out to the noise that mobile generator generates, avoid generating external environment excessive noise dirt
Dye.
Invention content
Technical problem to be solved in the utility model is in view of the above shortcomings of the prior art, to provide a kind of structure letter
It is single, reasonable, the carriage body air exhaust and noise reduction system of air draft excellent noise reduction effect.
Used technical solution is the utility model to solve above-mentioned technical problem：The carriage body air exhaust and noise reduction system, packet
The air exhaust passage being connect with exhaust fan air outlet and the air draft shutter for being set to air exhaust passage air side are included, feature exists
In：The air exhaust passage includes interconnected level-one air draft noise reduction storehouse and two level air draft noise reduction storehouse, the level-one air draft noise reduction
Several lateral acoustical panels are laid in storehouse, several vertical acoustical panels are laid in the two level air draft noise reduction storehouse.
The cross section in the level-one air draft noise reduction storehouse is in the bell shape become larger, along the vertical section of air-out direction
For trapezium structure, the trapezoidal edge lengths of air side are less than the trapezoidal edge lengths of inlet side.
Misplace certain distance above and below the air side in the level-one air draft noise reduction storehouse and inlet side, and level-one air draft noise reduction storehouse is in incline
Ramp-like, the transverse direction acoustical panel is almost parallel with the top and bottom in the level-one air draft noise reduction storehouse.
Lay at least two rows of vertical acoustical panels between the top plate and bottom plate in the two level air draft noise reduction storehouse, it is adjacent it is two rows of between it is perpendicular
Interlaced setting but do not connect two-by-two to acoustical panel, tortuous gas channel is formed between vertical acoustical panel.
The noise reduction plate surface is covered with absorbing sound and lowering noise layer.
The utility model has the advantages that compared with prior art：
1）By using level-one air draft noise reduction storehouse and two level air draft noise reduction storehouse, classification noise reduction, two-stage air draft drop are effectively realized
It makes an uproar in storehouse, using the different acoustical panel of cloth set direction, effectively realizes to the full of twists and turns of air draft gas channel, in air-flow flowing
Process, acoustical panel carries out vibratory flow noise absorption noise reduction, simple in structure, rationally, air draft excellent noise reduction effect.
2）Further, the cross section in level-one air draft noise reduction storehouse is in the bell shape become larger, can effectively make power generation
The flow area increase of unit exhaust fan discharge, reduces stream pressure, meanwhile, the air outlet in level-one air draft noise reduction storehouse is in perpendicular
Nogata reduces upwards, and air-flow is formed and is oppressed, and the two is combined, and changes gas flow shape, in addition, the horizontal stroke in level-one noise reduction air draft storehouse
There is certain angle of inclination to acoustical panel, effective noise absorption is carried out to air-flow, level-one noise reduction row is realized under collective effect
Wind can greatly reduce the noise that generating set is carried with air draft air-flow.
3）Air-flow through level-one noise reduction process is entering two level noise reduction air draft storehouse, in interlaced setting two-by-two but does not connect
Vertical acoustical panel under the action of, air-flow forms lateral full of twists and turns, further passes through the suction of at least two rows of vertical acoustical panels
Attached noise reduction further improves noise reduction, is classified noise reduction, more efficient, air circulation is good, and effect is more preferable, and noise decibel obtains
It is reduced to very big, can effectively reduce by more than 80%.
4）The utility model is simple and reasonable for structure, air draft excellent noise reduction effect, highly practical, and should be widely promoted use.
Description of the drawings
The utility model is described further below in conjunction with the accompanying drawings：
Fig. 1 is the overlooking the structure diagram of the utility model；
Fig. 2 is the side structure schematic view of the utility model.
Specific embodiment
The technical solution of the utility model is further elaborated in the following with reference to the drawings and specific embodiments, is such as schemed
1st, shown in 2.
A kind of carriage body air exhaust and noise reduction system, including being arranged on what is connect in babinet with generating set exhaust fan air outlet 1
Air exhaust passage 2 and the air draft shutter 3 positioned at 2 air side of air exhaust passage, air draft shutter 3 are preferably electric-powered shutter, are pacified
Dress is fixed on carriage body, and the air exhaust passage 2 includes interconnected level-one air draft noise reduction storehouse 2-1 and two level air draft noise reduction storehouse 2-
The cross section of 2, the level-one air draft noise reduction storehouse 2-1 are in the bell shape become larger, can effectively make discharge in the horizontal
Flow area increases, and plays peptizaiton, reduces stream pressure, reduction make an uproar can, level-one air draft noise reduction storehouse 2-1 is along air-out direction
Vertical section is trapezium structure, and the trapezoidal edge lengths of air side are less than the trapezoidal edge lengths of inlet side, meanwhile, the level-one air draft drop
Make an uproar air side and the inlet side of storehouse 2-1 misplaces certain distance up and down, and level-one air draft noise reduction storehouse is oblique, can tilt upwards or to
It is lower to tilt, several lateral acoustical panel 2-1-1, the transverse direction acoustical panel 2- are laid in the level-one air draft noise reduction storehouse 2-1
1-1 is almost parallel with the top and bottom of the level-one air draft noise reduction storehouse 2-1, and lateral acoustical panel 2-1-1 is in level-one air draft noise reduction storehouse 2-1
Spacing distance between inlet side or the adjacent two lateral acoustical panel 2-1-1 in air side is identical, the air outlet of level-one air draft noise reduction storehouse 2-1
Place reduces in the vertical direction, forms compressing trend in the vertical direction to air-flow, is discharged with reference to horizontal space, changes air-flow shape
State in addition, in addition transverse direction acoustical panel 2-1-1 has certain angle of inclination, carries out air-flow effective noise absorption, common to make
With lower realization level-one noise reduction air draft.
Several vertical acoustical panel 2-2-1 are laid in the two level air draft noise reduction storehouse 2-2, two level air draft noise reduction storehouse 2-2's
Lay at least two rows of vertical acoustical panel 2-2-1 between top plate and bottom plate, it is adjacent it is two rows of between vertical acoustical panel 2-2-1 mutually hand over two-by-two
Mistake sets but does not connect, and tortuous gas channel is formed between vertical acoustical panel 2-2-1, makes air draft air-flow in two level air draft noise reduction
Lateral complications detour in the 2-2 of storehouse, so as to further improve absorbing sound and lowering noise effect.
Preferred embodiment is further used as, the equal surface of acoustical panel 2-1-1,2-2-1 is covered with acoustical cotton, suede, sponge etc.
Absorbing sound and lowering noise layer made of material, the vertical acoustical panel 2-2-1 in the two level air draft noise reduction storehouse 2-2 is in two level air draft noise reduction storehouse
The flat segments that certain length is respectively provided with into inside and air draft side of 2-2 form straight air duct sections, vertical acoustical panel 2-2- each other
1 tilts segment structure to being formed among two level air draft noise reduction storehouse 2-2, and the length ratio of flat segments and tilting section is 1：2-3 is advisable.
The utility model effectively realizes classification drop by using level-one air draft noise reduction storehouse 2-1 and two level air draft noise reduction storehouse 2-2
It makes an uproar, in two-stage air draft noise reduction storehouse, using the different acoustical panel of cloth set direction, the cross section of level-one air draft noise reduction storehouse 2-1 is in gradual
The bell shape to become larger, the flow area increase for discharging generating set exhaust fan, reduces stream pressure, meanwhile, outlet air
Reduce and move up in the vertical direction at mouthful, air-flow is formed and is oppressed, the two is combined, and changes gas flow shape, inclined transverse direction
Acoustical panel 2-1-1 carries out air-flow effective noise absorption, realizes level-one noise reduction air draft under collective effect, can greatly reduce hair
The noise that motor group is carried with air draft air-flow.Air-flow through level-one noise reduction process is entering two level noise reduction air draft storehouse 2-2, air-flow shape
Into the full of twists and turns of transverse direction, by the absorption noise reduction of vertical acoustical panel 2-2-1, noise reduction is further improved, air draft is smooth, and
Noise reduction is apparent, and effect is good.
The technical solution of the utility model is not restricted in the range of embodiment described in the utility model.This practicality is new
The technology contents of the not detailed description of type are known technology.
Claims (5)
1. a kind of carriage body air exhaust and noise reduction system including the air exhaust passage being connect with exhaust fan air outlet and is set to air exhaust passage
The air draft shutter of air side, it is characterised in that：The air exhaust passage includes interconnected level-one air draft noise reduction storehouse and two level
Air draft noise reduction storehouse, is laid with several lateral acoustical panels in the level-one air draft noise reduction storehouse, laying in the two level air draft noise reduction storehouse
There are several vertical acoustical panels.
2. carriage body air exhaust and noise reduction system as described in claim 1, it is characterised in that：The cross section in the level-one air draft noise reduction storehouse
It is trapezium structure along the vertical section of air-out direction in the bell shape become larger, the trapezoidal edge lengths of air side are less than
The trapezoidal edge lengths of inlet side.
3. carriage body air exhaust and noise reduction system as claimed in claim 2, it is characterised in that：The air side in the level-one air draft noise reduction storehouse
It misplaces up and down with inlet side, level-one air draft noise reduction storehouse is oblique, the transverse direction acoustical panel and the level-one air draft noise reduction storehouse
Top and bottom are almost parallel.
4. the carriage body air exhaust and noise reduction system as described in claims 1 or 2 or 3, it is characterised in that：The two level air draft noise reduction storehouse
Lay at least two rows of vertical acoustical panels between top plate and bottom plate, it is adjacent it is two rows of between the interlaced setting but not two-by-two of vertical acoustical panel
Connect, tortuous gas channel is formed between vertical acoustical panel.
5. carriage body air exhaust and noise reduction system as described in claim 1, it is characterised in that：The noise reduction plate surface is covered with sound-absorbing drop
It makes an uproar layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721328251.8U CN207510180U (en) | 2017-10-16 | 2017-10-16 | A kind of carriage body air exhaust and noise reduction system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721328251.8U CN207510180U (en) | 2017-10-16 | 2017-10-16 | A kind of carriage body air exhaust and noise reduction system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207510180U true CN207510180U (en) | 2018-06-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721328251.8U Active CN207510180U (en) | 2017-10-16 | 2017-10-16 | A kind of carriage body air exhaust and noise reduction system |
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| CN (1) | CN207510180U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112922723A (en) * | 2021-03-22 | 2021-06-08 | 广西玉林卓越动力发电设备有限公司 | Novel high-efficient generator room air intake amortization device |
-
2017
- 2017-10-16 CN CN201721328251.8U patent/CN207510180U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112922723A (en) * | 2021-03-22 | 2021-06-08 | 广西玉林卓越动力发电设备有限公司 | Novel high-efficient generator room air intake amortization device |
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