CN108730239A - Noise-eliminating device for air-blower and road cleaning vehicle - Google Patents
Noise-eliminating device for air-blower and road cleaning vehicle Download PDFInfo
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- CN108730239A CN108730239A CN201810553201.2A CN201810553201A CN108730239A CN 108730239 A CN108730239 A CN 108730239A CN 201810553201 A CN201810553201 A CN 201810553201A CN 108730239 A CN108730239 A CN 108730239A
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- Prior art keywords
- noise
- dust
- air
- eliminating device
- reducing structure
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/663—Sound attenuation
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
- E01H1/00—Removing undesirable matter from roads or like surfaces, with or without moistening of the surface
- E01H1/08—Pneumatically dislodging or taking-up undesirable matter or small objects; Drying by heat only or by streams of gas; Cleaning by projecting abrasive particles
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/663—Sound attenuation
- F04D29/665—Sound attenuation by means of resonance chambers or interference
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
- F04D29/701—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Cleaning Of Streets, Tracks, Or Beaches (AREA)
Abstract
The present invention relates to a kind of noise-eliminating device for air-blower and road cleaning vehicles, wherein noise-eliminating device for air-blower includes：Shell (1), shell (1) are equipped with entrance (11) and outlet (12)；With dust/noise-reducing structure (2), it is located in shell (1), and on the circulation path between entrance (11) and outlet (12), there is noise elimination cavity (A), entering at least partly air-flow in shell (1) from entrance (11) is being discharged after noise elimination cavity (A) from outlet (12) in dust/noise-reducing structure (2).Structure has both depositing dust and decrease of noise functions to dust/noise-reducing structure in such noise-eliminating device for air-blower as a whole, it can make the dust separation carried in fan outlet air-flow, noise reduction can be carried out to wind turbine again, such structure can make the structure of noise-eliminating device for air-blower compacter simultaneously, can meet the dedusting noise reduction demand of wind turbine in road cleaning vehicle.
Description
Technical field
The present invention relates to field of sanitation machinery technology more particularly to a kind of noise-eliminating device for air-blower and road cleaning vehicle.
Background technology
In sweeping machine operation process, because of the swabbing action of centrifugal blower, different types of rubbish is with high pressure draught
Suction nozzle, dustbin and wind turbine are sequentially entered, is then discharged into air again.But fan noise is its main sound source, work is made an uproar
Sound is just discharged without processing, and certain interference will necessarily be generated to the life of operator and surrounding resident.Meanwhile fan outlet air-flow
Mix the small quality rubbish such as floating dust, fine sand, after being expelled directly out air, reentrainment of dust can be caused.
Current sweeping machine generally installs air duct part or pipe laying silencer to reduce fan noise in fan outlet.But
Depositing dust or noise elimination can only solely be played the role of by being these modes, still cannot meet the needs of sweeping machine.
Invention content
The embodiment provides a kind of noise-eliminating device for air-blower and road cleaning vehicles, can reach depositing dust drop simultaneously
The effect made an uproar.
To achieve the above object, the embodiment of the present invention first aspect provides a kind of noise-eliminating device for air-blower, including：
Shell, shell are equipped with entrance and exit；With
Dust/noise-reducing structure, is located in shell, and on the circulation path between entrance and exit, dust/noise-reducing structure
It is interior that there is noise elimination cavity, enter at least partly air-flow in shell after by noise elimination cavity from outlet discharge from entrance.
Further, dust/noise-reducing structure and entrance face.
Further, further include driving part, dust/noise-reducing structure is adjustable relative to the distance of entrance, and driving part can
The position of dust/noise-reducing structure is adjusted according to the dust emission on current path where wind turbine.
Further, dust/noise-reducing structure have initial position and depositing dust position, depositing dust position than initial position close to enter
Mouthful.
Further, dust/noise-reducing structure is rotationally connect with the top of shell, and driving part is used for dust/noise-reducing
Side force of the structure far from entrance, so that dust/noise-reducing structure is swung in vertical plane.
Further, dust/noise-reducing structure includes foreboard, and foreboard is towards entrance, and the outer wall of foreboard is as windward side, windward
The direction that face is directed away from entrance from bottom to up tilts.
Further, dust/noise-reducing structure includes foreboard, and foreboard is towards entrance, and the outer wall of foreboard is as windward side, foreboard
It is equipped with multiple trepannings being connected to noise elimination cavity.
Further, the distance between the leeward of dust/noise-reducing structure and windward side gradually increase from top to bottom.
Further, dust/noise-reducing structure includes foreboard, backboard, top plate and bottom plate and nozzle, and nozzle is set to the inner wall of top plate
With along foreboard jetting liquid from top to bottom, and/or set on backboard inner wall with to foreboard jetting liquid.
Further, further include sewage collection equipment, sewage collection equipment is located in shell, and is located at dust/noise-reducing structure
Lower section, the bottom of dust/noise-reducing structure is equipped with recirculation hole, and noise elimination cavity A is connected to by recirculation hole with sewage collection equipment.
Further, sewage collection equipment includes water collecting structure, and the top of water collecting structure is equipped with opening, and opening can cover
Dust/noise-reducing structure corresponding band of position within the scope of entire movement travel.
Further, water collecting structure includes guide portion and collection portion, and collection portion is bathtub construction, and guide portion is located at flute profile knot
The side of structure, and the inner surface of guide portion is tilted down from free end towards guide portion.
Further, water collecting structure further includes water suction block, and water suction block is located at position of the inner surface close to collection portion of guide portion
It sets, and extends along the length direction of collection portion.
Further, the side wall that collection portion is connect with guide portion is equipped with multiple flow guide bars, is formed between adjacent guide item
Water stream channel.
Further, each flow guide bar is arranged relative to the centre position of collection portion in the longitudinal direction in splayed.
Further, sewage collection equipment includes aqua storage tank, water collecting structure between dust/noise-reducing structure and aqua storage tank,
And positioned at outlet lower section, the bottom of water collecting structure is equipped with opening, for making the water in water collecting structure flow in aqua storage tank, aqua storage tank
It is equipped with sewage backflow mouth, for in the dustbin of sewage backflow to road cleaning vehicle.
Further, the inner surface of aqua storage tank is laid with flexible water bladder.
To achieve the above object, the embodiment of the present invention second aspect provides a kind of road cleaning vehicle, including above-mentioned
The noise-eliminating device for air-blower of embodiment.
Further, road cleaning vehicle further includes centrifugal blower, and noise-eliminating device for air-blower is located at the air outlet of centrifugal blower.
Based on the above-mentioned technical proposal, the noise-eliminating device for air-blower of one embodiment of the invention, in shell entrance and exit it
Between path be equipped with dust/noise-reducing structure, dust/noise-reducing structure have noise elimination cavity, enter in shell at least partly from entrance
Air-flow is discharged after by noise elimination cavity from outlet.Structure has both depositing dust and decrease of noise functions to dust/noise-reducing structure as a whole, both
It can make the dust separation carried in fan outlet air-flow, and noise reduction can be carried out to wind turbine, while such structure can make fan noise elimination
The structure of device is compacter, can meet the dedusting noise reduction demand of wind turbine in road cleaning vehicle.
Description of the drawings
Attached drawing described herein is used to provide further understanding of the present invention, and is constituted part of this application, this hair
Bright illustrative embodiments and their description are not constituted improper limitations of the present invention for explaining the present invention.In the accompanying drawings：
Fig. 1 is the stereogram of one embodiment of noise-eliminating device for air-blower of the present invention；
Fig. 2 is the side sectional view of one embodiment of noise-eliminating device for air-blower of the present invention；
Fig. 3 is the structural schematic diagram of one embodiment of dust/noise-reducing structure in noise-eliminating device for air-blower of the present invention；
Fig. 4 is the side sectional view of one embodiment of water collecting structure in noise-eliminating device for air-blower of the present invention；
Fig. 5 is the internal structure schematic diagram of one embodiment of water collecting structure in noise-eliminating device for air-blower of the present invention；
Fig. 6 is the bottom substance schematic diagram of one embodiment of water collecting structure in noise-eliminating device for air-blower of the present invention.
Reference sign
1, shell；11, entrance；12, it exports；2, dust/noise-reducing structure；21, foreboard；211, trepanning；22, backboard；23, it pushes up
Plate；24, bottom plate；241, recirculation hole；25, side plate；26, driving part；27, lifting lug；28, nozzle；A, cavity；3, water collecting structure；
31, guide portion；32, collection portion；33, absorb water block；34, flow guide bar；35, it is open；4, aqua storage tank；41, flexible water bladder.
Specific implementation mode
The present invention described further below.In the following paragraphs, the different aspect of embodiment is defined in more detail.So
The various aspects of restriction can be combined with any other one side or many aspects, can not be combined unless explicitly stated otherwise.Especially,
Be considered as preferred or advantageous any feature can be considered as preferred or advantageous feature group with other one or more
It closes.
The terms descriptions merely for convenience such as " first " that occurs in the present invention, " second " have same names to distinguish
Different building blocks, be not offered as successively or primary-slave relation.
In the description of the present invention, the instructions such as "upper", "lower", "top", "bottom", "front", "rear", "inner" and "outside" are used
Orientation or positional relationship be based on the orientation or positional relationship shown in the drawings, be merely for convenience of description the present invention, rather than
It indicates or implies that signified device must have a particular orientation, with specific azimuth configuration and operation, therefore should not be understood as
Limiting the scope of the invention.
For convenience, with reference to figure 1, the directions x is defined as to " width direction " of noise-eliminating device for air-blower, the directions y are determined
Justice is " length direction " of noise-eliminating device for air-blower, the directions z is defined as " short transverse " of noise-eliminating device for air-blower.
As shown in Figures 1 to 4, the present invention provides a kind of noise-eliminating device for air-blower, are generated when for reducing blower fan work
Noise, in a schematical embodiment, including shell 1 and dust/noise-reducing structure 2.Wherein, shell 1 is equipped with gas supply and flows into
The entrance 11 entered and the outlet 12 being discharged for air-flow, in order to obtain preferably noise elimination effect, the position guarantor of entrance 11 and outlet 12
Hold larger distance.For example, for the cuboid housing 1 placed vertically, entrance 11 may be provided in the top region of one of side wall
Domain, outlet 12 may be provided in the bottom section with 11 opposing sidewalls of entrance.
Dust/noise-reducing structure 2 is located in shell 1, and on the circulation path between entrance 11 and outlet 12, depositing dust drop
There is noise elimination cavity A in structure of making an uproar 2, enter at least partly air-flow in shell 1 after by noise elimination cavity A from outlet from entrance 11
12 discharges.
The fan outlet air-flow of road cleaning vehicle mixes the small quality rubbish such as floating dust, fine sand, due to dust/noise-reducing knot
Structure 2 is located on the circulation path between entrance 11 and outlet 12, and air-flow, can be by depositing dust after entering shell 1 from entrance 11
The barrier effect of denoising structure 2, fraction continue, towards 12 flowing of outlet, to be equivalent to and form around dust/noise-reducing structure 2
The gas flowing path of bending, and extend the stroke of air-flow, another part air-flow during entering in noise elimination cavity A by
Resistance makes the flow velocity of gas reduce, and is detached with air-flow conducive to the small quality rubbish such as floating dust, the fine sand made in air-flow, and be deposited in
In noise elimination cavity A or on the inner wall of shell 1, it can avoid small quality rubbish and be expelled directly out air from outlet 12 and cause reentrainment of dust dirty
Dye.
During air-flow is from entrance 11 into noise elimination cavity A, on the one hand it can be drawn by the variation of the flow area of air-flow
Rise sound wave reflection and interference, to realize reactive muffling, can preferably centering low-frequency sound wave eliminate the noise.Further, such as
Shown in Fig. 3, multiple trepannings 211 can be also set in dust/noise-reducing structure 2, and trepanning 211 is combined with noise elimination cavity A can be to medium-high frequency
Sound wave is eliminated the noise.Therefore, such noise-eliminating device for air-blower can eliminate the noise to the sound wave of high, medium and low frequency range, be suitable for road
Clean the demand that vehicle wideband is eliminated the noise.Moreover, because the moist more dirt of air-flow that wind turbine is discharged in road cleaning vehicle, use are such
Reactive muffling structure have the advantages that moisture resistant, be not easy to plug with it is easy to clean.
Structure has both depositing dust and decrease of noise functions to dust/noise-reducing structure 2 as a whole as a result, can either make fan outlet air-flow
In dust separation, and noise reduction can be carried out to wind turbine, while the structure of noise-eliminating device for air-blower can be made compacter.
In some embodiments, dust/noise-reducing structure 2 and 11 face of entrance, the windward side of dust/noise-reducing structure 2 is not less than
The area of entrance 11.The embodiment can allow airflow into after silencer, stopped in time by dust/noise-reducing structure 2 and reduce
Flow velocity can be just dusted in shell 1 before non-dispersion flows in air-flow, optimize dust removing effects.Meanwhile it can also make gas early
Stream enters noise elimination cavity A and carries out noise reduction, reduces from 12 noises to external radiation of outlet.
In some embodiments, as shown in Fig. 2, noise-eliminating device for air-blower further includes driving part 26,2 phase of dust/noise-reducing structure
Adjustable for the distance of entrance 11, driving part 26 can adjust dust/noise-reducing according to the dust emission on current path where wind turbine
The position of structure 2.
In order to realize that the automation of 2 position of dust/noise-reducing structure is adjusted, noise-eliminating device for air-blower further includes airborne dust concentration sensing
Device and control unit, airborne dust concentration sensor may be provided in the air inlet end or air opening end of wind turbine, for where detection blower fan
Dust emission on current path.Control unit is used to obtain the detection signal of airborne dust concentration sensor, and is adjusted according to dust emission
Position of the dust/noise-reducing structure 2 relative to entrance 11.
Dust/noise-reducing structure 2 is installed in silencer can reduce airborne dust concentration, to reduce the road cleaning vehicle course of work
In airborne dust secondary pollution caused to environment, but depositing dust component can also increase the windage of apparatus for work, reduce operating efficiency.The reality
The position switching of dust/noise-reducing structure 2 can be automatically controlled according to airborne dust concentration by applying example, be increased in the case of airborne dust concentration over-standard
Strong depositing dust function, otherwise weakens depositing dust function, reduces windage, preferentially promotes operating efficiency.By making depositing dust component according to airborne dust
The switching position of concentration self-adapting can adjust windage according to demand, be obtained between reducing airborne dust concentration and promoting operating efficiency
Optimal balance.
According to the requirement of balance of depositing dust and operating efficiency, dust/noise-reducing structure 2 can the company of realization relative to the position of entrance 11
It is continuous to adjust, windage can be neatly adjusted in entire operation process, depositing dust demand can be met and make road work vehicle
Operating efficiency reach maximization.
Alternatively, dust/noise-reducing structure 2 can be adjusted relative to the position of entrance 11 by shelves, can be simplified position and be controlled
Journey makes the position of dust/noise-reducing structure 2 adjust much sooner, to be adjusted in real time according to working condition.
Simpler in order to make the position of dust/noise-reducing structure 2 control, dust/noise-reducing structure 2 has initial position and depositing dust
Position, depositing dust position is than initial position close to entrance 11.In the case where dust emission is larger, depositing dust is dropped by driving part 26
Structure of making an uproar 2 is adjusted at the extreme position closer apart from entrance 11 (i.e. depositing dust position), dust-laying effect is optimal at this time but crushing compared with
Greatly.In the case where dust emission is smaller, dust/noise-reducing structure 2 is adjusted to by driving part 26 by the pole nearest apart from entrance 11
At extreme position (i.e. initial position), dust-laying effect is poor at this time but crushing is small.
It is eased reliable that the embodiment can be such that the position of dust/noise-reducing structure 2 adjusts, and improves the real-time of position control
Property.
In some embodiments, dust/noise-reducing structure 2 can by along towards closer or far from entrance 11 direction translate into
Line position sets adjusting, for example, being translated in fig. 2 along horizontal direction.
Correspondingly, can the leeward of dust/noise-reducing structure 2 be arranged driving part 26, under the control of control unit to
Dust/noise-reducing structure 2 applies push-pull effort.For example, driving part 26 can be linear motor, electric pushrod, hydraulic cylinder or cylinder etc.
The mechanism of linear movement output.
Such regulative mode can increase dust-laying effect with 2 change in location relevance of dust/noise-reducing structure, it is easier to obtain
Ratio variation relation between dust-laying effect and change in location, to accurately adjust the position of dust/noise-reducing structure 2 in real time, with
Obtain the dust-laying effect needed.
In further embodiments, dust/noise-reducing structure 2 can by towards closer or far from entrance 11 direction swing with
Position adjusting is carried out, for example, dust/noise-reducing structure 2 is made to be swung in vertical plane in fig. 2.
Such regulative mode structure is simpler, is not necessarily to extra setup tracks, it will be able to keep dust/noise-reducing structure 2 real
Now stable swing, and be less likely to occur to move clamping stagnation after long-term use, reliability is higher.
Specifically, as shown in Fig. 2, the top of dust/noise-reducing structure 2 is rotationally connect with the roof of shell 1, driving portion
Part 26 can exert a force to the leeward of dust/noise-reducing structure 2, and one end is connect with dust/noise-reducing structure 2, and the other end is interior with shell 1
Wall connects, for exerting a force to side of the dust/noise-reducing structure 2 far from entrance 11, so that dust/noise-reducing structure 2 is put in vertical plane
It is dynamic.In order to reduce the load requirement to driving part 26, the force side of driving part 26 can be located at dust/noise-reducing knot
Position far from tie point below the leeward of structure 2.
Still referring to FIG. 2, lifting lug 27 is arranged at the top of dust/noise-reducing structure 2, connected by the roof of lifting lug 27 and shell 1
It connects, when driving part 26 applies push-pull effort to dust/noise-reducing structure 2, dust/noise-reducing structure 2 can be swung around the articulated shaft of top,
To adjust the distance between entrance 11.
In some embodiments, dust/noise-reducing structure 2 includes foreboard 21, and foreboard 21 is towards entrance 11, the outer wall of foreboard 21
As windward side, the direction that windward side is directed away from entrance 11 from bottom to up tilts.
In the embodiment, space appropriate, and and entrance can be retained between windward side and entrance 11 under different operating modes
11 keep the position relationship of Unequal distance, and when such air-flow reaches windward side from entrance after a distance, air velocity can be shown
Writing reduces, and can reduce air-flow by the way that inclined windward side is arranged by windward side and leaves the resistance of dust/noise-reducing structure 2 by entrance
Power, and after air-flow reduces speed by the blocking of windward side, in the region between inclined windward side and entrance 11, gas
Stream can make larger rubbish and grit that can fall because conducting oneself with dignity to detach from air-flow before not entering dust/noise-reducing structure 2, excellent
Change the rubbish and grit separating effect for entering 2 early period of dust/noise-reducing structure, in case most grit falls into dust/noise-reducing structure 2
Interior influence noise reduction makes dust/noise-reducing structure 2 without often cleaning.
In some embodiments, dust/noise-reducing structure 2 includes foreboard 21, and foreboard 21 is towards entrance 11, the outer wall of foreboard 21
As windward side, foreboard 21 is equipped with multiple trepannings 211 being connected to noise elimination cavity A, and foreboard 21 is designed as perforated plate.Perforated plate exists
Allow air-flow by while, by with windward side collision reduce rubbish kinetic energy, force its sedimentation.
In the dust/noise-reducing structure 2 of the embodiment, pass through the combination centering high frequency sound wave of multiple small structures and noise elimination cavity A
It eliminates the noise, and reduces wind turbine fundamental frequency and its frequency multiplication noise.Further, it can also be sticked on the inner wall of dust/noise-reducing structure 2
Deadener, to optimize noise elimination effect.Therefore, such noise-eliminating device for air-blower is suitable for the need that road-cleaning vehicle wideband is eliminated the noise
It asks.Compared with the mode that sound-absorbing material is individually set in silencer internal wall, reactive muffling structure acoustic attenuation performance after long-term use
It will not decline, also not influenced by dust, service life can be improved.
As shown in Fig. 2, the distance between the leeward of dust/noise-reducing structure 2 and windward side gradually increase from top to bottom, shape
At similar to inverted trapezoidal shape structure, bottom plate 24 can be in downwardly projecting arc-shaped structure.Such set-up mode is easily formed windward
The sweptback structure in face, and the volume of noise elimination cavity A can be increased as possible, to enhance noise elimination effect；Furthermore it is possible to preferably
Arrange the nozzle 28 subsequently mentioned, the interior zone for making the liquid of ejection there is enough formation to rinse dust/noise-reducing structure 2, so as to
Auxiliary dust fall structure higher plays the role of depositing dust together.
Further, recirculation hole 241 can be set on bottom plate 24, as the outlet of air-flow discharge dust/noise-reducing structure 2, had
It is discharged conducive to making the air-flow being accumulated in dust/noise-reducing structure 2 and sewage smoothly flow down.Preferably, the opening face of recirculation hole 241
Product should be less than the 3/4 of 21 opening area of foreboard, forms an expansion cavity, plays the role of noise elimination.
In some embodiments, as shown in figure 4, dust/noise-reducing structure 2 includes foreboard 21, backboard 22, top plate 23, bottom plate 24
With side plate 25, each plate is enclosed noise elimination cavity A, and top plate 23 and bottom plate 24 play the role of connecting foreboard 21 and backboard 22.?
Nozzle 28 is additionally provided in dust/noise-reducing structure 2, for spraying water or other liquid, nozzle 28 be set to the inner wall of top plate 23 with along
The jetting liquid from top to bottom of foreboard 21, the inner wall after making moist so as to rubbish or dust along foreboard 21 fall；Or nozzle 28 is set to
The inner wall of backboard 22 is to 21 jetting liquid of foreboard, to play the role of secondary dust removing.
The embodiment can carry out secondary dust removing to the air-flow in dust/noise-reducing structure 2, prevent to ring by the way that nozzle 28 is arranged
Border pollutes.According to depositing dust demand, one or more nozzles 28 can be set, nozzle 28 can carry out fan-shaped or round water spray, with
Achieve the purpose that depositing dust.
On the basis of the above embodiments, noise-eliminating device for air-blower further includes sewage collection equipment, and sewage collection equipment is located at
In shell 1, and positioned at the lower section of dust/noise-reducing structure 2, the bottom of dust/noise-reducing structure 2 is equipped with recirculation hole 241, and noise elimination cavity A is logical
Recirculation hole 241 is crossed to be connected to sewage collection equipment.It, can be timely by the sewage inside silencer by the way that sewage collection equipment is arranged
It collects, and is easy to discharge.
As shown in Fig. 2, sewage collection equipment includes water collecting structure 3, the top of water collecting structure 3 is equipped with opening, and opening can
Cover the corresponding band of position within the scope of entire movement travel of dust/noise-reducing structure 2.It is moved in this way in dust/noise-reducing structure 2
Within the scope of extreme position, the sewage that it can be made internal is fallen into water collecting structure 3, is played preferable sewage collecting and is made
With.
As shown in figure 5, water collecting structure 3 includes guide portion 31 and collection portion 32, collection portion 32 is bathtub construction, bathtub construction
Side connect with guide portion 31, the other side is connected on shell 1, and the inner surface of guide portion 31 is from free end towards guide portion
31 tilt down, and the water fallen from recirculation hole 241 is successfully guided into collection portion 32 and is stored.Bathtub construction along
The width direction of silencer extends, and Fig. 2 illustrates water collecting structure 3 in the sectional view perpendicular to the directions x, and water collecting structure 3 is fixed
In shell 1 on the side wall of outlet 12, and positioned at the top of outlet 12.Guide portion 31 is arranged in the underface of opening 35, receives
Collection portion 32 is located at the right side of guide portion 31, and is biased to right side setting relative to dust/noise-reducing structure 2.Dust/noise-reducing structure 2 it is big
Portion bottom surface is aligned with guide portion 31, more uniformly to be fallen into collection portion 32 under the guiding of guide portion 31.
As shown in fig. 6, in the slot bottom setting opening 35 of collection portion 32, for example, opening 35 is along bathtub construction length side
To the slot-shaped structure of extension.
As shown in figure 5, water collecting structure 3 further includes water suction block 33, water suction block 33 is located at the inner surface of guide portion 31 close to receipts
The position in collection portion 32, and extend along the whole length direction of collection portion 32.For example, water suction block 33 can be by loose porous material system
At, such as sponge or felt pan etc..After sewage is fallen in water collecting structure 3, absorbed first by water suction block 33, then equably fall on
In collection portion 32.
As shown in figure 5, the side wall that collection portion 32 is connect with guide portion 31 is equipped with multiple flow guide bars 34, adjacent guide item 34
Between form water stream channel.The sewage flowed down from guide portion 31 flows downward along to flow guide bar 34.
Preferably, each flow guide bar 34 can be in splayed cloth relative to the centre position of collection portion 32 along its length
It sets, is more preferably arranged symmetrically relative to the centre position of collection portion 32 along its length.Since recirculation hole 241 is in collection portion 32
Top, and it is located at the centre position of collection portion 32 along its length, therefore flow concentrates on the intermediate region of collection portion 32, tilts
Flow guide bar 34 can by sewage to both sides guide so that sewage along collection portion 32 length direction from it is gap-shaped opening 35
It is even to drip, to form cascade continuously or discontinuously, depositing dust again is achieved the purpose that when flowing down.
Preferably, the intermediate flow channel entrance opening dimension of collection portion 32 along its length is minimum, the entrance opening dimension of peripheral runner with
Intermediate flow channel is compared and is sequentially increased.The embodiment can make sewage more uniformly drip along the length direction of collection portion 32, with
Advanced optimize dust-laying effect.
In some embodiments, as shown in Fig. 2, sewage collection equipment includes aqua storage tank 4, water collecting structure 3 is located at depositing dust drop
Between structure of making an uproar 2 and aqua storage tank 4, and positioned at 12 lower section of outlet, the bottom of water collecting structure 3 is equipped with opening 35, for making the knot that catchments
Water in structure 3 flows in aqua storage tank 4, and aqua storage tank 4 can extend along the entire width direction of silencer.Aqua storage tank 4 is equipped with dirt
Water refluxing opening, for in the dustbin of sewage backflow to road cleaning vehicle, sewage continues on for spraying after dustbin settles
The water spray operation of mouth 28, can reach the recycling of water.
Further, the inner surface of aqua storage tank 4 is laid with flexible water bladder 41, can avoid because of aqua storage tank 4 because failure welding causes
Drainage.
In the embodiment shown in Figure 2, noise-eliminating device for air-blower includes three-level depositing dust, wherein level-one depositing dust be air-flow from
Depositing dust is carried out during colliding with the windward side of dust/noise-reducing structure 2 after the entrance of entrance 11；Two level depositing dust be air-flow into
After the noise elimination cavity A for entering dust/noise-reducing structure 2, collide under the action of nozzle 28 sprays liquid or with noise elimination cavity A side walls
Shi Jinhang depositing dusts；Three-level depositing dust is that sewage carries out depositing dust when uniformly dripping from gap-shaped opening 35.By in silencing apparatus
Multistage depositing dust is carried out, clean gas can be drained into extraneous air to the maximum extent by the dust separation in air-flow,
It cannot be easily caused secondary environmental pollution.
In addition, the present invention also provides a kind of road cleaning vehicle, include the noise-eliminating device for air-blower of above-described embodiment.It is preferred that
Ground, road cleaning vehicle further include centrifugal blower, and noise-eliminating device for air-blower may be provided in the air outlet of centrifugal blower.
Since such noise-eliminating device for air-blower can play reduction airborne dust concentration and the effect of noise reduction simultaneously, additionally it is possible to according to
Dust emission adjusts the installation site of dust/noise-reducing structure, realizes the intelligent depositing dust according to airborne dust operating mode.Therefore the road of the present invention
Cleaning vehicle rubbish that quality can be prevented smaller, which is not easy to be mingled in air-flow, to be gone out wind turbine is discharged, and prevents from causing two secondary environments dirty
Dye；In addition, due to can fan airflow path raise up dust concentration it is relatively low when reduce the pressure loss, road cleaner can be reduced
Power attenuation.
A kind of noise-eliminating device for air-blower provided by the present invention and road cleaning vehicle are described in detail above.Herein
In apply specific embodiment principle and implementation of the present invention are described, the explanation of above example is only used
In facilitating the understanding of the method and its core concept of the invention.It should be pointed out that for those skilled in the art,
Without departing from the principle of the present invention, can be with several improvements and modifications are made to the present invention, these improvement and modification
It falls into the protection domain of the claims in the present invention.
Claims (19)
1. a kind of noise-eliminating device for air-blower, which is characterized in that including：
Shell (1), the shell (1) are equipped with entrance (11) and outlet (12)；With
Dust/noise-reducing structure (2) is located in the shell (1), and positioned at the entrance (11) and exports the circulation between (12)
On path, there is noise elimination cavity (A) in the dust/noise-reducing structure (2), enters at least portion in shell (1) from the entrance (11)
Air-flow is divided to be discharged from the outlet (12) after the noise elimination cavity (A).
2. noise-eliminating device for air-blower according to claim 1, which is characterized in that the dust/noise-reducing structure (2) with it is described enter
Mouth (11) face.
3. noise-eliminating device for air-blower according to claim 1, which is characterized in that further include driving part (26), the depositing dust
Denoising structure (2) is adjustable relative to the distance of the entrance (11), and the driving part (26) can be according to air-flow where wind turbine
Dust emission on access adjusts the position of the dust/noise-reducing structure (2).
4. noise-eliminating device for air-blower according to claim 3, which is characterized in that the dust/noise-reducing structure (2) has initial
Position and depositing dust position, the depositing dust position is than the initial position close to the entrance (11).
5. noise-eliminating device for air-blower according to claim 3, which is characterized in that the dust/noise-reducing structure (2) is rotationally
It is connect with the top of the shell (1), the driving part (26) is used for dust/noise-reducing structure (2) far from the entrance (11)
Side force so that the dust/noise-reducing structure (2) is swung in vertical plane.
6. noise-eliminating device for air-blower according to claim 1, which is characterized in that the dust/noise-reducing structure (2) includes foreboard
(21), the foreboard (21) is towards the entrance (11), and the outer wall of the foreboard (21) is as windward side, and the windward side is under
The supreme direction for being directed away from the entrance (11) tilts.
7. noise-eliminating device for air-blower according to claim 1, which is characterized in that the dust/noise-reducing structure (2) includes foreboard
(21), the foreboard (21) is towards the entrance (11), and the outer wall of the foreboard (21) is as windward side, on the foreboard (21)
Equipped with multiple trepannings (211) being connected to the noise elimination cavity (A).
8. noise-eliminating device for air-blower according to claim 1, which is characterized in that the leeward of the dust/noise-reducing structure (2)
The distance between windward side gradually increases from top to bottom.
9. noise-eliminating device for air-blower according to claim 1, which is characterized in that the dust/noise-reducing structure (2) includes foreboard
(21), backboard (22), top plate (23), bottom plate (24) and nozzle (28), the nozzle (28) are set to the inner wall of top plate (23) with edge
Foreboard (21) jetting liquid from top to bottom, and/or set on backboard (22) inner wall with to foreboard (21) jetting liquid.
10. noise-eliminating device for air-blower according to claim 1, which is characterized in that further include sewage collection equipment, the sewage
Collection device is located in the shell (1), and positioned at the lower section of the dust/noise-reducing structure (2), the dust/noise-reducing structure (2)
Bottom be equipped with recirculation hole (241), the noise elimination cavity (A) is connected to by recirculation hole (241) with the sewage collection equipment.
11. noise-eliminating device for air-blower according to claim 10, which is characterized in that the sewage collection equipment includes the knot that catchments
The top of structure (3), the water collecting structure (3) is equipped with opening, and the opening can cover the dust/noise-reducing structure (2) entire
The corresponding band of position within the scope of movement travel.
12. noise-eliminating device for air-blower according to claim 11, which is characterized in that the water collecting structure (3) includes guide portion
(31) and collection portion (32), the collection portion (32) they are bathtub construction, and the guide portion (31) is located at the side of bathtub construction, and
The inner surface of the guide portion (31) is tilted down from free end towards the guide portion (31).
13. noise-eliminating device for air-blower according to claim 12, which is characterized in that the water collecting structure (3) further includes water suction
Block (33), the water suction block (33) is located at the inner surface of the guide portion (31) close to the position of the collection portion (32), and edge
The length direction for the collection portion (32) extends.
14. noise-eliminating device for air-blower according to claim 12, which is characterized in that the collection portion (32) and the guide portion
(31) side wall connected is equipped with multiple flow guide bars (34), and adjacent guide item forms water stream channel between (34).
15. noise-eliminating device for air-blower according to claim 14, which is characterized in that each flow guide bar (34) is relative to institute
The centre position of collection portion (32) in the longitudinal direction is stated to arrange in splayed.
16. noise-eliminating device for air-blower according to claim 11, which is characterized in that the sewage collection equipment includes aqua storage tank
(4), the water collecting structure (3) is between the dust/noise-reducing structure (2) and the aqua storage tank (4), and is located at the outlet
(12) bottom of lower section, the water collecting structure (3) is equipped with opening (34), for making the water in the water collecting structure (3) flow to institute
It states in aqua storage tank (4), the aqua storage tank (4) is equipped with sewage backflow mouth, for the rubbish for sewage backflow to road cleaning vehicle
In rubbish case.
17. noise-eliminating device for air-blower according to claim 16, which is characterized in that the inner surface of the aqua storage tank (4) is laid with
Flexible water bladder (41).
18. a kind of road cleaning vehicle, which is characterized in that including any noise-eliminating device for air-blower of claim 1~17.
19. road cleaning vehicle according to claim 18, which is characterized in that further include centrifugal blower, the wind turbine disappears
Acoustic device is located at the air outlet of centrifugal blower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810553201.2A CN108730239B (en) | 2018-06-01 | 2018-06-01 | Fan noise eliminator and road cleaning vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810553201.2A CN108730239B (en) | 2018-06-01 | 2018-06-01 | Fan noise eliminator and road cleaning vehicle |
Publications (2)
| Publication Number | Publication Date |
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| CN108730239A true CN108730239A (en) | 2018-11-02 |
| CN108730239B CN108730239B (en) | 2020-03-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810553201.2A Active CN108730239B (en) | 2018-06-01 | 2018-06-01 | Fan noise eliminator and road cleaning vehicle |
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| Country | Link |
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| CN (1) | CN108730239B (en) |
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| BG64459B1 (en) * | 2001-11-01 | 2005-03-31 | Любен ГАНЧЕВ | Inertia separator for coal powder |
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| CN107956751A (en) * | 2017-11-28 | 2018-04-24 | 徐工集团工程机械有限公司 | Silencing apparatus and sweeping machine |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BG64459B1 (en) * | 2001-11-01 | 2005-03-31 | Любен ГАНЧЕВ | Inertia separator for coal powder |
| CN105889091A (en) * | 2016-04-16 | 2016-08-24 | 卜慧丽 | Electric fan |
| CN205955051U (en) * | 2016-06-25 | 2017-02-15 | 湖州南浔五福木制品厂 | Ladder table pastes type floor |
| CN107956751A (en) * | 2017-11-28 | 2018-04-24 | 徐工集团工程机械有限公司 | Silencing apparatus and sweeping machine |
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| Publication number | Publication date |
|---|---|
| CN108730239B (en) | 2020-03-17 |
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Effective date of registration: 20220706 Address after: 221004 26 Tuo Lan Shan Road, Xuzhou economic and Technological Development Zone, Jiangsu Patentee after: Jiangsu XCMG Guozhong Laboratory Technology Co.,Ltd. Address before: 221004 26 Tuo Lan Shan Road, Xuzhou economic and Technological Development Zone, Jiangsu Patentee before: XCMG CONSTRUCTION MACHINERY Co.,Ltd. |