CN206480373U - A kind of steel compound noise reduction board and denoising device - Google Patents
A kind of steel compound noise reduction board and denoising device Download PDFInfo
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- CN206480373U CN206480373U CN201720147871.5U CN201720147871U CN206480373U CN 206480373 U CN206480373 U CN 206480373U CN 201720147871 U CN201720147871 U CN 201720147871U CN 206480373 U CN206480373 U CN 206480373U
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Abstract
The utility model provides a kind of steel compound noise reduction board and denoising device.The steel compound noise reduction board includes absorbent treatment and metal sound insulation layer, and the absorbent treatment has sound absorption hole, and the section of the metal sound insulation layer is c-type structure, and the absorbent treatment is compounded in the intracavitary of the c-type structure of the metal sound insulation layer.Noise source is insulated against sound by a kind of metal sound insulation with c-type structure, and set the absorbent treatment with sound absorption hole can be with absorption of noise in the cavity of the c-type structure in metal sound insulation layer, realize and efficient sqouynd absorption lowering noise processing carried out to noise source, the noise reducing plate structure simplifies, it is economic and environment-friendly, be easy to it is assembled, applied widely.
Description
Technical field
The utility model is related to noise abatement technical field, and in particular to a kind of steel compound noise reduction board and denoising device.
Background technology
At present, noise pollution has been regarded as one of Environmental Pollution, is badly in need of administering.Especially, in the city of population concentration
Be primarily present in city traffic noise, man-made noise and building noise, the Working Life that noise pollution gives people bring it is numerous not
Just, in addition have a strong impact on it is healthy, country many relevant policies have also been put into effect in improvement, formulated series of noise standard
And regulation.
In the prior art, noise reduction process is generally carried out using silencer or acoustic hood, but silencer will to installation environment
Ask high, and cost is higher, acoustic hood is typically that noise source device is enclosed in a small space, makes it and surrounding environment
Separate, to reduce the influence of Noise upon Environment, and existing acoustic hood generally uses perforated plate or the acoustic board of MULTILAYER COMPOSITE,
Common practice is that sound-absorbing material and sound insulating material Spaced are combined with each other, the acoustic board consumptive material of this MULTILAYER COMPOSITE
Many, complicated, cost is big, and the limitation in space is also suffered from practical engineering application, is not suitable for the noise source of motion, peace
Constructing operation inconvenience is filled, it is also bad to low-frequency noise defening effect.
Utility model content
The utility model embodiment provides a kind of noise reducing plate and denoising device, can effective absorbing sound and lowering noise, consumptive material is few, ties
Structure is simplified, applied widely.
First aspect has sound-absorbing hole there is provided a kind of noise reducing plate, including absorbent treatment and metal sound insulation layer, the absorbent treatment
Gap, the section of the metal sound insulation layer is c-type structure, and the absorbent treatment is compounded in the c-type structure of the metal sound insulation layer
Intracavitary.
In the first possible embodiment, the absorbent treatment includes sound absorption particle, adhesive and arrangement of reinforcement, the bonding
Agent is wrapped between the outer surface of the sound absorption particle, the sound absorption particle and is bonded to form hole by described adhesive, described
Arrangement of reinforcement is located between the sound absorption particle.
With reference to above-mentioned possible implementation, in second of possible implementation, the sound absorption particle is that granularity exists
10 mesh to the river sand grains between 50 mesh, ceramic grain or can person's regrown material particle.
With reference to above-mentioned possible implementation, in the third possible implementation, the metal sound insulation layer is thickness
In 0.8mm to the metallic plate between 2.0mm.
With reference to above-mentioned possible implementation, in the 4th kind of possible implementation, the metallic plate is that thickness is
1.5mm steel plate, aluminium sheet or iron plate.
With reference to above-mentioned possible implementation, in the 5th kind of possible implementation, the arrangement of reinforcement is bullion, institute
State the metal sound insulation layer that arrangement of reinforcement connects the c-type structure.
With reference to above-mentioned possible implementation, in the 6th kind of possible implementation, the total thickness of the steel compound noise reduction board
Spend is 20mm between 40mm.
Second aspect there is provided a kind of denoising device, including the steel compound noise reduction board described in any one of above first aspect,
Connection forms the railway carriage or compartment type structure enclosed with six bread between the steel compound noise reduction board.
It is to be detachably connected in the first possible implementation, between the steel compound noise reduction board.
With reference to above-mentioned possible implementation, in second of possible implementation, the connection of the steel compound noise reduction board
Place is provided with align member.
With reference to above-mentioned possible implementation, in the third possible implementation, the steel compound noise reduction board is connected
Contact surface between be provided with sealing strip.
With reference to above-mentioned possible implementation, in the 4th kind of possible implementation, it is between the steel compound noise reduction board
Clamping is connected.
With reference to above-mentioned possible implementation, in the 5th kind of possible implementation, the steel compound noise reduction board is in clamping
Locate the attachment structure for bearing pin and pin-and-hole, or the attachment structure that projection and groove coordinate.
With reference to above-mentioned possible implementation, in the 6th kind of possible implementation, the steel compound noise reduction board is in clamping
Place is provided with clamping between clamping breach, the clamping breach and forms ladder card access surface.
With reference to above-mentioned possible implementation, in the 7th kind of possible implementation, include the adjustable connection of activity
Component, the adjustable connecting elements is located at the ladder access section of the steel compound noise reduction board.
With reference to above-mentioned possible implementation, in the 8th kind of possible implementation, the adjustable connecting components are to tighten up
The cabinet lock of formula, the steel compound noise reduction board is provided with Angle connection part, the both sides point of the Angle connection part in the ladder access section
Not Lian Jie two steel compound noise reduction boards for being connected to each other, the cabinet lock connection Angle connection part for tightening up formula so that
Connect the steel compound noise reduction board.
To sum up, the utility model embodiment is provided noise reducing plate and denoising device, pass through a kind of metal with c-type structure
Sound insulating layer insulates against sound noise source, and sets the absorbent treatment with sound absorption hole in the cavity of the c-type structure in metal sound insulation layer
It can realize and effective sqouynd absorption lowering noise processing is carried out to noise source with absorption of noise.
Brief description of the drawings
, below will be in the utility model embodiment in order to illustrate more clearly of the technical scheme of the utility model embodiment
The required accompanying drawing used is briefly described, it should be apparent that, drawings described below is only of the present utility model one
A little embodiments, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to these
Accompanying drawing obtains other accompanying drawings.
Fig. 1 is the section structure schematic diagram of the utility model noise reducing plate embodiment；
Fig. 2 is the section structure schematic diagram of the utility model denoising device embodiment；
Fig. 3 is the schematic diagram of the utility model noise reducing plate erection method embodiment.
In figure, 1：Absorb sound particle；2：Adhesive；3：Arrangement of reinforcement；4：Metal sound insulation layer；5：Noise source device；6：Compound noise-reducing
Plate；7：Sealing strip；8：Cabinet is locked；9：Do not sell；10：Angle connection part；11：Base；12：Fixed latches；13：Pin hole.
Embodiment
Embodiment of the present utility model is described in further detail with reference to the accompanying drawings and examples.Following examples
The detailed description and the accompanying drawings be used to exemplarily illustrate principle of the present utility model, but be not limited to model of the present utility model
Enclose, i.e., the utility model is not limited to described preferred embodiment, scope of the present utility model is defined by the claims.
Sound comes from the vibration of object, and it causes the vibration of neighbouring air and forms sound wave, and to four in air dielectric
Week propagates.When the incoming construction material surface of sound, acoustic energy a part is reflected, a part of penetrable material, some by
With surrounding medium friction when the vibration of construction material or sound are propagated wherein, heat energy is changed into by acoustic energy, acoustic energy is depleted,
I.e. usually said sound is absorbed by material；Acoustic energy is reflected by construction material surface, make acoustic energy stopped in route of transmission and
Can not directly it pass through, i.e., usually said sound is separated by material.
Fig. 1 is a kind of structural representation of the embodiment of steel compound noise reduction board, the Double-noise-reduction effect with sound absorption and sound insulation,
High-efficient noise-reducing processing can be carried out to noise source.As shown in figure 1, the steel compound noise reduction board 6 includes absorbent treatment and metal sound insulation layer 4,
Absorbent treatment has sound absorption hole, and the section of metal sound insulation layer 4 is c-type structure, and absorbent treatment is located at the c-type structure of metal sound insulation layer 4
Intracavitary, due to absorbent treatment have sound absorption hole, when sound wave incident arrive with sound absorption hole absorbent treatment, make sound energy attenuation,
To sound absorption；Acoustic energy after absorbent treatment sound attenuation by absorption travels to metal sound insulation layer 4, due to metal sound insulation layer 4 than it is general every
Sound layer has the performance of the big quality weight of density, and further acoustic energy attenuation simultaneously obstructs sound, plays sound insulation effect；C-type structure every
Sound layer has the space for accommodating absorbent treatment, absorbent treatment is compounded to form the noise reducing plate of integrative-structure with metal sound insulation layer 4.
The steel compound noise reduction board 6 of the present embodiment has the Double-noise-reduction effect of sound absorption and sound insulation, passes through the C of metal sound insulation layer 4
Type structure, the special construction of receiving space can be formed by being surrounded by circumferential metal, preferably by absorbent treatment and the compound fixation of sound insulating layer,
Form stable integral noise reducing plate, structure is simplified, it is convenient to spell assembly and disassembly, can be widely applicable to it is various need the noise source of noise reduction,
Particularly with the application scenario that mobile noise source device and space are limited, and it can effectively be directed to Low Frequency Noise Generator noise reduction.
As a kind of alternative embodiment, absorbent treatment includes sound absorption particle 1, adhesive 2 and arrangement of reinforcement 3, and adhesive 2 is wrapped in suction
Hole is formed by the bonding of adhesive 2 between the outer surface of sound particle 1, sound absorption particle 1, arrangement of reinforcement 3 is located between sound absorption particle 1.
The internal open pore interpenetrated can be formed by being bonded by sound absorption particle 1 through adhesive 2, can effectively reduce the sound pressure level of noise, one
As, it can select tiny and uniform sound absorption particle 1 and formed as far as possible to be bonded through adhesive 2 for acoustically effective more preferably
The tiny and micropore that is evenly distributed is, it is necessary to which explanation, adhesive 2 should be covered in sound absorption particle 1 outer surface comprehensively, to ensure to glue
Effect is closed, and forms stable absorbent treatment.Further, the arrangement of reinforcement with support firm effect is set in the middle of particle absorbent treatment
3, by the way that sound absorption particle 1 is bonded on arrangement of reinforcement 3, so that the absorbent treatment bonded is more consolidated.
As a kind of alternative embodiment, sound absorption particle 1 be granularity 10 mesh to the river sand grains between 50 mesh, ceramic grain or
The particle of recyclable materials, the results showed, the sound absorption particle 1 in the size range has more preferable acoustically effective, together
The selection of Shi Heliu sand grains is convenient, good economy performance, also can Ceramics or other recyclable materials as needed particle,
In scheme protection domain of the present utility model.
As a kind of preferred embodiment, sound absorption particle 1 uses granularity in 10 mesh to the river sand between 50 mesh, with suction
Sound, fire prevention, protection against the tide and the advantage of environmental protection.This river sand bonds to be formed through adhesive 2 is mutually communicated be evenly distributed small
Absorb sound hole, incident acoustic energy is propagated between these sound absorption holes, progressively weakens acoustic energy, reach more preferable acoustically effective, due to
Sand grains raw material are heavier, according to sound insulation weight than principle, also have sound insulation effect while having absorption function, specifically, working as sound wave
When inciding sand grain surface, a part is in sand grain surface reflection, and another part, which is then penetrated into inside sand grains, to be continued to propagate, sound wave
Vibration drives the vibration of adjacent sand particles, and vibration is passed to the sand grains adjacent with it by adjacent sand grains again, and so so sound wave exists
Propagate in porous sand grains absorbent treatment, during propagation, cause the air movement of hole, hole wall is transported by air molecule
Dynamic friction and viscosity resistance, make acoustic energy be changed into thermal energy consumption and dissipate, and sound wave is returned after the reflection of rigid sand grains wall by sand grains
During to its surface, a part of acoustic wave transmission is into air, and a part is reflected back into inside sand grains absorbent treatment again, and sound wave passes through this
Propagation repeatedly, makes energy constantly change dissipation, and until balance, sand grains absorbent treatment also just absorbs part acoustic energy.Therefore, sand grains
Absorbent treatment better than the sound-absorbing material such as centrifugally glass-wool of the prior art, rock wool, mineral wool, polyester fiber cotton, perforated plate.
It should be noted that adhesive 2 needs good adhesive property, can using the polyurethane of environmental protection, epoxy resin,
Sand grains, as long as sand grains can be bonded by meeting, and can be bonded on metal by the adhesives such as inorganic modified sodium metasilicate bonded adhesives.
As a kind of alternative embodiment, metal sound insulation layer 4 be thickness in 0.8mm to the metallic plate between 2.0mm, through examination
Test, the metal sound insulation layer 4 in the thickness range has more preferable defening effect.Preferably, metal sound insulation layer 4 is that thickness is
1.5mm steel plate, aluminium sheet or iron plate, with the big characteristic of closely knit, weight, can effectively play defening effect, and these sheet materials
More typically, convenient material drawing and more economical, is easy to install with noise source device and coordinates, and forms harmonious appearance and modeling, therefore, this reality
It is the stainless steel plate that thickness is 1.5mm to apply the layer of the metal sound insulation in example.
Further alternative embodiment, arrangement of reinforcement 3 is bullion, general more preferable as support effect using round steel, and is matched somebody with somebody
The metal sound insulation layer 4 of the connection c-type structure of muscle 3, specifically, can select in a diameter of Φ 5- Φ 10 round steel, practical application, selection
The round steel of appropriate size as arrangement of reinforcement 3, it is uniform be located in the sound absorption particle 1 of river sand form and connect metal sound insulation layer 4 with
Support firm effect preferably is played, or as needed, suitable bullion arrangement of reinforcement 3 is applied in the absorbent treatment of river sand
Centre, as long as the firm graininess absorbent treatment of support can be played a part of in the protection domain of technical solutions of the utility model.
Further, the gross thickness of the present embodiment steel compound noise reduction board 6 be 20mm between 40mm, general, compound noise-reducing
The unit weight of plate 6 is 30-70kg/m2, through experiment, the general generator of 6 pairs of steel compound noise reduction board in the thickness range or similar make an uproar
Sound source device has preferable noise reduction.
As shown in Fig. 2 a kind of denoising device embodiment of use above steel compound noise reduction board 6, with suitable for mobile generator
Deng the noise reduction process of noise source device 5.The denoising device is combined using the steel compound noise reduction board 6 of the possible embodiment of any of the above
The railway carriage or compartment type structure enclosed with six bread is spliced to form between noise reducing plate 6, noise source device 5 is arranged on the noise reduction by base 11
In the closed cavity of device.By using steel compound noise reduction board 6 in the periphery of noise source device 5 splicing one similar to mobile generator
The railway carriage or compartment type denoising device that individual six bread encloses, using the steel compound noise reduction board 6 of above scheme, can flexibly be assembled into the denoising device of railway carriage or compartment type
Cover on outside the noise source device 5 similar to mobile generator, sqouynd absorption lowering noise effectively can be carried out to noise, it is convenient to spell assembly and disassembly,
The noise source environment of mobile noise source and limited space is applicable to, and effective noise reduction process can be carried out to low-frequency noise.
Tests prove that, the noise of mobile generator can be down to using the denoising device of the present embodiment by 61-63 decibels, drop by 72 decibels
About 10-8 decibels of the amount of making an uproar, especially for low-frequency noise (63Hz, 125Hz, 250Hz, 500Hz), noise reduction is more preferable.
In the present embodiment, to be detachably connected between steel compound noise reduction board 6, it is detachably connected mode flexibly and easily, uses model
Enclose wide, specifically can be flexibly assembled with dismantling according to noise source device 5, with good operability.
As a kind of alternative embodiment, the junction of steel compound noise reduction board 6 is provided with align member, sets align member to be conducive to
Steel compound noise reduction board 6 is positioned during assembly, improves assembled efficiency, specifically, can using not Xiao, bearing pin, latch, locating piece etc.
Location and installation is carried out, the side plate of the present embodiment denoising device is realized with floor by Fixed latches 12 and respective pins hole 13 to be connected
Connect.Specific installation between other positions can flexibly select corresponding align member as requested, as long as meeting in steel compound noise reduction board 6
The junction of building block is provided with align member, in the range of the technical solution of the utility model.
Further, sealing strip 7 is filled between the contact surface that steel compound noise reduction board 6 is connected, typically using elastic packing
Adhesive tape, can realize sealing noise reduction while positioning cushioning effect can also be played, this example employs silica gel sealing adhesive tape.
It is clamping connection between steel compound noise reduction board 6 as a kind of alternative embodiment, can realizes that the effect of connection can also be
Locating effect is realized to a certain extent.Specifically, the access section of steel compound noise reduction board 6 is the attachment structure of bearing pin and pin-and-hole, or
It is the attachment structure that projection and groove coordinate, the bottom of such as side plate sets Fixed latches 12, sets and insert in bottom plate relevant position
Pin-and-hole 13, Fixed latches 12 during installation, need to only be inserted in pin hole 13 and coordinated, and more specifically realize pair of connection and positioning
Weight action effect.
With reference to shown in Fig. 2 and Fig. 3, steel compound noise reduction board 6 is provided with clamping between clamping breach, clamping breach in access section and formed
Ladder card access surface, the steel compound noise reduction board 6 being connected to each other is connected together by the dislocation of clamping breach, and dislocation snap fit makes
The connection of steel compound noise reduction board 6 is more firm, while the dislocation formed has certain barrier in face of noise, further enhances noise reduction effect
Really, also, in clamping junction mode sealing strip 7 soundproof effect is strengthened.
As shown in Fig. 2 also including the adjustable connecting elements of activity, adjustable connecting elements is located at the ladder of steel compound noise reduction board 6
Access section, specifically in the present embodiment, adjustable connecting elements is arranged on the junction of upper plate and side plate, by adjusting in installation process
Adjustable connecting components are saved, can be closer stable by assembled denoising device connection, sealing strip 7 is compressed during regulation, enhancing is fine and close
Effect, further enhances sound insulation and noise reducing effect.
Preferably, adjustable connecting components are adjustable cabinet lock 8 or bearing pin for tightening up formula, and the present embodiment is to tighten up the cabinet of formula
Exemplified by lock 8, steel compound noise reduction board 6 is provided with Angle connection part 10 in ladder access section, and the both sides of Angle connection part 10 connect two respectively
The individual steel compound noise reduction board 6 being connected to each other, specifically available angle steel or aluminum corner brace are used as Angle connection part 10, by taking angle steel as an example, angle
Not pin 9 is also equipped with two sides of steel, cabinet lock 8 is connected and used cooperatively with not pin 9, the effect with connection and locking, from
And connection steel compound noise reduction board 6 is realized, specifically, the cabinet lock 8 for tightening up formula by regulation can realize that regulation steel compound noise reduction board connects
The tightness connect, meanwhile, denoising device can also be opened or closed by cabinet lock 8, it is convenient to the noise source device in it
Maintenance etc., wherein, the formula cabinet lock 12 of tightening up of the present embodiment is similar to Electric Appliance Cabinet lock or cabinet lock is improved to be adapted to this implementation
The denoising device of example.
It should be noted that the present embodiment is to be directed to the denoising device suitable for mobile generator or similar noise source,
Installation dimension is determined first, assembly is carried out from the steel compound noise reduction board 6 of appropriate size size, on the steel compound noise reduction board 6 being connected
Provided with Fixed latches 12 and pin hole 13, then by corresponding steel compound noise reduction board 6 just positioning splicing, and sealing is installed at splicing position
Adhesive tape is sealed, and noise source device is in the sealed environment of the denoising device, is adjusted and is locked finally by regulating part, tool
Body can noise reduction according to actual needs noise source device, the steel compound noise reduction board of selection dimension carries out assembled, is not limited to this reality
Apply the assembled order and installation method of example.
In summary, steel compound noise reduction board of the present utility model is provided simultaneously with sound absorption and defening effect, and its construction is simplified, consumptive material
It is few, it is economic and environment-friendly, it is convenient to spell assembly and disassembly using flexible, it is applied widely, noise source device that can be effectively for motion and by
The noise source device noise reduction process of space limitation, and there is good sqouynd absorption lowering noise effect to Low Frequency Noise Generator, it is multiple using this
The denoising device operability for closing noise reducing plate is good, effectively can carry out sqouynd absorption lowering noise processing to noise source.
Although the utility model is described by reference to preferred embodiment, model of the present utility model is not being departed from
In the case of enclosing, various improvement can be carried out to it and part therein can be replaced with equivalent.Especially, as long as not depositing
The every technical characteristic being previously mentioned in structural hazard, each embodiment can combine in any way.The utility model
It is not limited to specific embodiment disclosed herein, but all technical schemes including falling within the scope of the appended claims.
Claims (16)
1. a kind of steel compound noise reduction board, it is characterised in that including absorbent treatment and metal sound insulation layer, the absorbent treatment has sound-absorbing hole
Gap, the section of the metal sound insulation layer is c-type structure, and the absorbent treatment is compounded in the c-type structure of the metal sound insulation layer
Intracavitary.
2. steel compound noise reduction board according to claim 1, it is characterised in that the absorbent treatment includes sound absorption particle, adhesive
And arrangement of reinforcement, described adhesive is wrapped in viscous by described adhesive between the outer surface of the sound absorption particle, the sound absorption particle
Connect to form hole, the arrangement of reinforcement is located between the sound absorption particle.
3. steel compound noise reduction board according to claim 2, it is characterised in that the sound absorption particle is granularity in 10 mesh to 50 mesh
Between river sand grains, ceramic grain or recyclable materials.
4. steel compound noise reduction board according to claim 1, it is characterised in that the metal sound insulation layer for thickness in 0.8mm extremely
Metallic plate between 2.0mm.
5. steel compound noise reduction board according to claim 4, it is characterised in that the metallic plate be the steel plate that thickness is 1.5mm,
Aluminium sheet or iron plate.
6. steel compound noise reduction board according to claim 2, it is characterised in that the arrangement of reinforcement is bullion, the arrangement of reinforcement connects
Connect the metal sound insulation layer of the c-type structure.
7. the steel compound noise reduction board according to claim any one of 1-6, it is characterised in that the gross thickness of the steel compound noise reduction board
It is 20mm between 40mm.
8. a kind of denoising device, it is characterised in that including the steel compound noise reduction board described in claim any one of 1-7, described compound
The railway carriage or compartment type structure enclosed with six bread is spliced to form between noise reducing plate.
9. denoising device according to claim 8, it is characterised in that be to be detachably connected between the steel compound noise reduction board.
10. denoising device according to claim 9, it is characterised in that the junction of the steel compound noise reduction board is provided with positioning
Component.
11. denoising device according to claim 10, it is characterised in that the contact surface that the steel compound noise reduction board is connected it
Between be provided with sealing strip.
12. denoising device according to claim 11, it is characterised in that connected between the steel compound noise reduction board for clamping.
13. denoising device according to claim 12, it is characterised in that the access section of the steel compound noise reduction board be bearing pin and
The attachment structure of pin-and-hole, or the attachment structure that projection and groove coordinate.
14. denoising device according to claim 12, it is characterised in that the steel compound noise reduction board is provided with clamping in access section
Clamping forms ladder card access surface between breach, the clamping breach.
15. denoising device according to claim 14, it is characterised in that also include the adjustable connecting elements of activity, described
Adjustable connecting elements is located at the ladder access section of the steel compound noise reduction board.
16. denoising device according to claim 15, it is characterised in that the adjustable connecting components are the cabinet lock for formula of tightening up,
The steel compound noise reduction board is provided with Angle connection part in the ladder access section, and the both sides of the Angle connection part connect two respectively
The steel compound noise reduction board being connected to each other, the cabinet lock connection Angle connection part, so as to connect the steel compound noise reduction board.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106816145A (en) * | 2017-02-17 | 2017-06-09 | 清华大学 | A kind of steel compound noise reduction board and denoising device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106816145A (en) * | 2017-02-17 | 2017-06-09 | 清华大学 | A kind of steel compound noise reduction board and denoising device |
| WO2018149401A1 (en) * | 2017-02-17 | 2018-08-23 | 清华大学 | Composite noise-reducing plate and noise-reducing device |
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