CN205403534U - Two curve type cooling tower noise elimination systems - Google Patents
Two curve type cooling tower noise elimination systems Download PDFInfo
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- CN205403534U CN205403534U CN201620120436.9U CN201620120436U CN205403534U CN 205403534 U CN205403534 U CN 205403534U CN 201620120436 U CN201620120436 U CN 201620120436U CN 205403534 U CN205403534 U CN 205403534U
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Abstract
The utility model discloses a two curve type cooling tower noise elimination systems constitutes by decorating sound absorption module, observation daylighting module, installation bearing structure, module installation fastening structure and maintenance channel, decoration sound absorption module specification unified, constitute by steel structural framework, inboard sound absorption face, outside sound insulation decorative cover, elasticity vibration isolation adhesive tape and top installation rings, observation daylighting module forms by steel structural framework, interior vibration isolation installation component, sound insulation glass, outer vibration isolation align member, appearance specification and configuration absorb sound the module unanimously with decorating, installation bearing structure constitute by load steel construction, concrete foundation, retention wall, but module installation fastening structure place flute profile shaped steel, the upper portion of decorating the sound absorption module by the bottom and decorate L shape shaped steel, the middle part of sound absorption module installation buckle formula tightening firmware and support the support shaped steel of decorating the sound absorption module and constitutes, flute profile shaped steel depends on the inboard fastening bolt of installation, the bottom sets up the outlet.
Description
Technical field
This utility model relates to noise control technical field, particularly relates to one and can eliminate the large-scale airborne Hyperbolic cooling tower sound-attenuating system of hyperbola natural draft counter-flow wet cooling tower noise.
Background technology
Hyperbola natural ventilating wet-type counter-flow cooling tower is a kind of cooling tower form of current power plant, natural draft counter-flow wet cooling tower noise belongs to medium-high frequency, high-strength, steady statue noise, derives from the overboard large area seriality to Chi Shui of the high density being equivalent to storm intensity decades of times in tower and directly clashes into.Owing to its sound source is huge, acoustic power level strong, bandwidth, propagation distance are remote, and coverage reaches hundreds of meters.In power plant, natural draft counter-flow wet cooling tower trickle noise becomes important noise source.Owing to the location comparison of some power plant is special, cooling tower distance residential block is relatively near, the daily life that have impact on resident that cooling tower buzz is serious.
The cooling tower that the cross-ventilation effect that cooling stack is formed by the atmospheric density difference inside and outside tower or natural wind is aerated.In order to ensure cooling stack intake volume, cooling tower air inlet is general all higher, and air intake effective area is big.If reaching shield effectiveness, acoustic barrier should be above cooling tower air inlet height, and in order to prevent the loss that blast is caused, the path of air intake is shorter better.Distance between height and the cooling tower air inlet of acoustic barrier forms a pair paradox mutually restricted.Acoustic barrier is higher, and better, the distance between acoustic barrier and cooling tower air inlet is more remote, and the more, shield effectiveness is poorer for diffraction sound wave for shield effectiveness.Meanwhile, higher acoustic barrier, acoustic barrier structures under wind pressure is put forward higher requirement, construction costs is also just high.
Summary of the invention
The purpose of this utility model is in that to provide the outer sound wave of a kind of tower to intercept, staged acoustic screen is set, shorten air intake air flow path, reduce air loss, can effectively eliminate the falling water noise propagated from air inlet of Hyperbolic cooling tower, use the cooling tower sound-attenuating system that modular cost is low, speed of application fast, good weatherability, landscape effect are good economical and practical.
This utility model solves its technical problem and be the technical scheme is that A kind of Hyperbolic cooling tower sound-attenuating system, by decoration sound absorbing module, observation daylighting module, installation supporting construction, module installs fastening structure and maintenance channel forms, described decoration sound absorbing module uniform specification, is installed suspension ring formed by steel structure frame, sound absorption face, inner side, outside sound insulation decorative cover, elastic vibration isolation adhesive tape and top；Described observation daylighting module is made up of steel structure frame, interior vibration isolation installation component, sound control glass, outer vibration isolation align member, and form-factor and configuration are consistent with decoration sound absorbing module；Described installation supporting construction is made up of load steel construction, concrete pedestal, retention wall；Described module installation fastening structure is placed the decoration flute profile shaped steel of sound absorbing module by bottom, upper decoration sound absorbing module installs the L-shaped shaped steel of buckle-type adjustable fastener, the support shaped steel of midfoot support decoration sound absorbing module forms, flute profile shaped steel installs fastening bolt by inboard, and bottom arranges spilled water hole.
Owing to Hyperbolic cooling tower sound-attenuating system acoustic barrier has higher level height, front face area is big.So, the ant wind load ability of acoustic barrier just becomes the most important thing of sound-attenuating system design.Anti-seismic performance according to acoustic barrier and local maximum wind load, snow load are set up model and are calculated, it is determined that the steel construction of acoustic barrier and scheme of foundation design.The head tree of support steel structure is H profile steel, and column bottom arranges flange bottom plate and ribbed stiffener, arranges concreting pedestal, and mattess uses chemical bolt bar planting, and flange bottom plate and concrete pedestal are fastenedly connected.Use other shaped steel horizontal cross, longitudinal direction and the tiltedly reliable welding of fork between H profile steel, between reinforcement node steel plate is set, it is ensured that the ant wind load ability of support steel structure.Steel structure surface makes two road anti-corrosive primers, two coat finish anticorrosive coating.
Module is installed fastening structure and is arranged on load steel construction, polylith decoration sound absorbing module is vertically mounted on outside cooling tower and forms the arc acoustic barrier centered by cooling tower, arc acoustic barrier has multilamellar, outer layer is arranged on retention wall, internal layer is arranged on outside cooling tower air inlet top, between two layers of arc acoustic barrier horizontally overlapping, form the stepped multilayer arc acoustic barrier of outer low and inner high shape；Hyperbolic cooling tower is a kind of cooling tower form that current domestic power plant is most widely used, but its thermal performance is bigger by such environmental effects, especially ambient side wind action makes tower circumference air intake extremely uneven, reduces ventilation in tower, seriously reduces its cooling effectiveness.Owing to the frequency spectrum of cooling tower falling water noise is based on high frequency components, diffraction sound wave can be weakened on the impact by sound point by arranging the way of the sound insulation sound absorber of cascade arrangement, be subject to the direct sound wave of sound point can obtain good noise reduction so adopting the sound insulation sound absorber of cascade arrangement to cut off and absorbing the arrival of cooling tower sound source.Both can shorten air intake air flow path, it is to avoid the adverse effect that crosswind brings, it is possible to stablize charge air flow flow velocity, reduce airflow pressure losses to greatest extent.
The coverage of cooling tower falling water noise: the sound source of falling water noise is the built-in a piece of circular water surface, chamber sound in the body is outwards propagated by air inlet, so air inlet can be considered as sound source edge, its huge special cambered surface outlet sound mouth makes the sound wave in " near zone " not decay by the spatial attenuating tendency of " point sound source " immediately, one is also existed by ring-type cylindrical wave to external diffusion in this " near zone " from the close-by examples to those far off, increase along with propagation distance, owing to power dissipation comes, sound pressure level constantly declines.The acoustic pressure that sound source directly radiates is inversely proportional to the distance from sound source.Ground sound source (i.e. so-called Half free sound field), one meter away from sound source be, distance increases each times, noise sound level decline 3dB (A).If catchmenting the outer 1m maximum noise sound level of pool side for 88dB (A) with air inlet, under the constraints being left out air and ground sound absorption, along with the increase of distance, noise sound level attenuation can by following estimation:
Outside air inlet edge, 3m(adds 2m) maximum noise sound level is 85dB (A)；
Outside air inlet edge, 7m(adds 4m) maximum noise sound level is 82dB (A)；
Outside air inlet edge, 15m(adds 8m) maximum noise sound level is 79dB (A)；
Outside air inlet edge, 31m(adds 16m) maximum noise sound level is 76dB (A)；
Outside air inlet edge, 63m(adds 32m) maximum noise sound level is 73dB (A)；
Outside air inlet edge, 127m(adds 64m) maximum noise sound level is 70dB (A)；
Outside air inlet edge, 255m(adds 128m) maximum noise sound level is 67dB (A).
More than estimation is the influence of noise propagated with the air inlet that range noise sensitive spot is nearest.Owing to large-scale double-curve cooling column bottom air inlet mouth diameter is about 100m, in the influence of noise that the end points place of air inlet radius propagates, relatively nearest air inlet adds the decay distance of 50m.If being provided with sound barrier, for sensitive point for noise, decay just bigger.At present, at cooling tower air inlet outer ground rational height higher than the acoustic barrier of cooling tower air inlet, to intercept the route of transmission of cooling tower buzz, residential block is placed in the acoustic shadow of acoustic barrier.
If sensitive point for noise is only certain direction outside cooling tower, the sensitive point for noise of the cooling tower side air inlet mouth distance direction is more remote, and effect of noise is more little, and the requirement of noise elimination also reduces accordingly.According to equivalence noise elimination principle, the number of plies of staged arc acoustic barrier reduces accordingly according to the requirement eliminated the noise.While meeting sound deadening capacity, quantities can be reduced, save construction investment.Move away from the position of sensitive point for noise at cooling tower air inlet, the staged arc acoustic barrier number of plies reduces according to innermost layer, middle inner layer, secondary outer layer, secondary internal layer, middle outer layer, outermost order successive.Innermost layer arc acoustic barrier mainly intercepts cooling tower water surface falling water noise and enters upper space propagation toward air inlet top, and owing to cooling tower falling water noise belongs to medium-high frequency, the diffracting power of sound wave is relatively weak.First reduce innermost layer arc acoustic barrier offset sound shadow ring less.Inner layer in the middle of reducing, secondary internal layer, middle outer layer still can intercept the horizontal transmission of falling water noise；Reducing time outer layer, outermost layer, middle outer layer still can intercept the horizontal transmission of falling water noise；Reducing time internal layer, middle inner layer still can intercept the horizontal transmission of falling water noise；Outer layer in the middle of reducing, outermost layer still can intercept the reflection of falling water noise and ground, destroys the formation of Half free sound field, can strengthen the attenuation amplitude increasing noise sound level with distance.
Described decoration sound absorbing module is by steel structure frame, outside decorative steel plate, and decorative steel plate flanging is fixed on steel structure frame side, application sound-proof damping slurry in decorative steel plate, forms sound insulation decorative cover；Sound absorption face, inner side is sound-absorbing material, water-proof sound-transmitting thin film, louvered perforated plate from interior successive outward；Steel structure frame inside top, bottom are respectively provided with elastic vibration isolation adhesive tape；The gap of reserved about 10mm between vertically arranged decoration sound absorbing module, uses structure glue to close；Decoration sound absorbing module, by zinc-plated square tube inside casing, lays outward decorative steel plate, decorative steel plate flanging, is fixed on zinc-plated square tube inside casing with rivet and is formed.The outer surface of decoration sound absorbing module forms the decorative effect being similar to aluminium-plastic panel, and decorative steel plate cost is low, weatherability strong, and color is coordinated with environmental color, is conducive to improving the landscape effect of cooling tower sound-attenuating system.
Due to the multilayer concentric circle moulding that cooling tower sound-attenuating system system is the center of circle with centre of cooling column, decoration sound absorbing module system planar structure, polylith decoration sound absorbing module is arranged along circular arc, does not interfere with its landscape effect.But, the curvature that multilayer concentric circle moulding can produce each concentric circular moulding is inconsistent, and more inner layer, curvature is more big.In order to improve efficiency of construction, in the flute profile shaped steel required for the maximum curvature of internal layer effectively the width of groove as the flute profile shaped steel of all module installation structures.To curvature less by flute profile shaped steel by inboard install fastening bolt to decoration sound absorbing module fastening ensure install fastness.Use flute profile shaped steel and buckle-type adjustable fastener is installed, firmly installing quick, be effectively improved installment work efficiency, reduce setup cost.
The described interior vibration isolation installation component observing daylighting module is arranged on the inner side in steel structure frame, sound control glass is arranged on interior vibration isolation installation component, outer vibration isolation align member is installed outside sound control glass, observes daylighting modular spacing and is arranged on the retention wall in outer layer arc acoustic barrier；Just can passing through daylighting sound control glass outside sound barrier and observe understanding equipment working condition, reduce the noise of equipment impact on operator, the daylighting meeting work surface is observed, and is beneficial to management personnel to the operation of cooling tower systems, maintenance.Module installation structure is arranged on ground waterproof partition wall, it is ensured that from raindrop erosion bottom decoration sound absorbing module, meanwhile, as the Anticollision Measures of Cooling Tower sound-attenuating system.
Described maintenance channel system is arranged in the middle part of outer layer arc acoustic barrier, maintenance channel just to second layer arc acoustic barrier extend on retention wall, the width of second layer arc acoustic barrier extension is more than three times of maintenance channel width.The maintenance channel access way as operator is set.Width is three times of channel frame width.Play acoustic barrier effect, it is possible to prevent sound wave from passing through maintenance channel and propagate outward.
It is that Open Side Down when described louvered perforated plate is installed, in the face of Sounnd source direction.Owing to the sound source of hyperbola natural ventilating wet-type counter-flow cooling tower is mainly overboard sound, Sounnd source direction is in the pond of cooling tower bottom, the louvered perforated plate that Open Side Down is conducive to absorbing overboard sound, simultaneously, effectively prevent the rainwater invasion and attack to sound-absorbing material, ensure the weatherability of decoration sound absorbing module, increase the service life.
The enveloping surface of described arc acoustic barrier is determined according to the position of sensitive point for noise, and the number of plies of arc acoustic barrier, spacing, two layers of horizontally overlapping proportional parts of arc acoustic barrier require to determine according to noise elimination noise reduction amount.The enveloping surface of described arc acoustic barrier is determined according to the position of sensitive point for noise, and spacing, two layers of horizontally overlapping proportional parts of arc acoustic barrier between two layers of arc acoustic barrier require to determine according to noise elimination noise reduction amount.According to cooling tower buzz influence area, it is possible to set up the noise elimination structure of full-circle spray pattern, it is possible to setting unit circular arc noise elimination structure.Spacing between two layers of arc acoustic barrier is more little, and two layers of horizontally overlapping ratio of arc acoustic barrier are more many, and the more thick noise elimination noise reduction amount of sound-absorbing material is more big.
When noise elimination noise reduction amount requires significantly high, by mutually bonding for the decorative steel plate face of two packaged decorations sound absorbing modules, form compound sound insulation sound absorbing module, be arranged on the arc acoustic barrier within outer layer, form the noise elimination inserted sheet of double-face sound-absorbing.Double-face sound-absorbing can reduce the reflection sound wave of sound insulation decorative cover, can be greatly enhanced the sound deadening capacity of sound-attenuating system, meet the requirement that noise elimination noise reduction amount is significantly high.
This utility model hinge structure provides the benefit that:
1, the stepped multilayer arc acoustic barrier of outer low and inner high shape, it is possible to effectively eliminate the falling water noise propagated from air inlet of Hyperbolic cooling tower；2, shorten air intake air flow path, it is to avoid the adverse effect that crosswind brings, stablize charge air flow flow velocity, reduce airflow pressure losses to greatest extent；3, decorate sound absorbing module, observe daylighting module unified specification, can unify to make in processing factory, use module fastening component, raising on-site installation work efficiency, reduce setup cost；4, decoration sound absorbing module good decorative property, good weatherability, is conducive to improving the landscape effect of sound insulating structure；5, sound-attenuating system and cooling tower is facilitated to safeguard.
Below in conjunction with drawings and Examples to this utility model further instruction.
Accompanying drawing explanation
Fig. 1 is the top view of this utility model first embodiment.
Fig. 2 is side, sectional structural map.
Fig. 3 is decoration sound absorbing module, module installation fastening structure front view.
Fig. 4 is the side view of Fig. 3.
Fig. 5 observes daylighting module front view.
Fig. 6 is the side view of Fig. 5.
Fig. 7 is maintenance channel front view.
Fig. 8 is the top view of Fig. 7.
Fig. 9 is the side, sectional structural map of this utility model the second embodiment.
Figure 10 is the partial enlarged drawing of Fig. 9.
null1. decoration sound absorbing module in figure，11. steel structure frame，12. elastic vibration isolation adhesive tape，13. installation suspension ring，14. decorative steel plate，15. sound-proof damping is starched，16. sound-absorbing material，17. water-proof sound-transmitting thin film，18. louvered perforated plate，19. structure glue，2. observe daylighting module，21. steel structure frame，22. interior vibration isolation installation component，23. sound control glass，24. outer vibration isolation align member，3. supporting construction is installed，31. load steel construction，32. concrete pedestal，33. retention wall，4. module installs fastening structure，41. flute profile shaped steel，42. buckle-type adjustable fastener，43.L shape shaped steel，44. support shaped steel，45. fastening bolt，46. spilled water hole，5. maintenance channel，6. cooling tower，61. cooling tower air inlet，62. ground，63. sensitive point for noise.
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage, clearly understand, make those of ordinary skill in the art easy to implement.Below in conjunction with drawings and Examples, this utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain this utility model, be not used to limit this utility model.
In Fig. 1, the first embodiment shown in 2, Hyperbolic cooling tower sound-attenuating system, by decoration sound absorbing module (1), observation daylighting module (2), installation supporting construction (3), module installs fastening structure (4) and maintenance channel (5) forms, described decoration sound absorbing module (1) uniform specification, is installed suspension ring (13) formed by steel structure frame (11), sound absorption face, inner side, outside sound insulation decorative cover, elastic vibration isolation adhesive tape (12) and top；Described observation daylighting module (2) is made up of (24) steel structure frame (21), interior vibration isolation installation component (22), sound control glass (23), outer vibration isolation align member, and form-factor and configuration are consistent with decoration sound absorbing module (1)；Described installation supporting construction (3) is made up of load steel construction (31), concrete pedestal (32), retention wall (32)；Described module installation fastening structure (4) is placed the flute profile shaped steel (41) of decoration sound absorbing module (1) by bottom, upper decoration sound absorbing module (1) installs the L-shaped shaped steel (43) of buckle-type adjustable fastener (42), the support shaped steel (44) of midfoot support decoration sound absorbing module (1) forms, flute profile shaped steel (41) installs fastening bolt (45) by inboard, and bottom arranges spilled water hole (46).
Module is installed fastening structure (4) and is arranged on load steel construction (31), polylith decoration sound absorbing module (1) is vertically mounted on cooling tower (6) and forms outward the arc acoustic barrier centered by cooling tower (6), arc acoustic barrier has multilamellar, outer layer is arranged on retention wall (33), internal layer is arranged on outside cooling tower air inlet (61) top, between two layers of arc acoustic barrier horizontally overlapping, form the stepped multilayer arc acoustic barrier of outer low and inner high shape.
When sensitive point for noise is only certain direction outside cooling tower, move away from the position of sensitive point for noise (63) at cooling tower air inlet (61), the staged arc acoustic barrier number of plies reduces according to innermost layer, middle inner layer, secondary outer layer, secondary internal layer, middle outer layer, outermost order successive.
Fig. 3, the described decoration sound absorbing module (1) shown in 4 are by steel structure frame (11), outside decorative steel plate (14), decorative steel plate (14) flanging is fixed on steel structure frame (11) side, interior application sound-proof damping slurry (15) of decorative steel plate (14), forms sound insulation decorative cover；Sound absorption face, inner side is sound-absorbing material (16), water-proof sound-transmitting thin film (17), louvered perforated plate (18) from interior successive outward；Steel structure frame (11) inside top, bottom are respectively provided with elastic vibration isolation adhesive tape (12)；The gap of reserved about 10mm between vertically arranged decoration sound absorbing module (1), uses structure glue (19) to close.
Fig. 5, the interior vibration isolation installation component (22) observing observation daylighting module (2) described in daylighting module shown in 6 are arranged on the inner side that steel structure frame (21) is inner, sound control glass (23) is arranged on interior vibration isolation installation component (22), outer vibration isolation align member (24) installs sound control glass (23) outward, observes daylighting module (2) interval and is arranged on the retention wall (33) in outer layer arc acoustic barrier.
It is that Open Side Down when described louvered perforated plate (18) is installed, in the face of Sounnd source direction.
Fig. 7, the described maintenance channel (5) shown in 8 are be arranged in the middle part of outer layer arc acoustic barrier, maintenance channel (5) just to second layer arc acoustic barrier extend on retention wall (33), the width of second layer arc acoustic barrier extension is more than three times of maintenance channel (5) width.
In Fig. 9, the second embodiment shown in 10, when noise elimination noise reduction amount requires significantly high, by mutually bonding for decorative steel plate (14) face of two packaged decorations sound absorbing modules (1), form compound sound insulation sound absorbing module, it is arranged on the arc acoustic barrier within outer layer, forms the noise elimination inserted sheet of double-face sound-absorbing.
Hyperbolic cooling tower is arranged sound-attenuating system, can be in accordance with the following steps:
1, by Hyperbolic cooling tower distribution of noise sources situation and assessment measurement and analysis to sensitive spot actual influence are drawn noise rating；
2, noise control direction and total noise reduction are determined；
3, formulate Hyperbolic cooling tower Noise Control Design scheme (including: the number of plies of arc acoustic barrier, highly, horizontally overlapping ratio between spacing, two layers of arc acoustic barrier, the arc acoustic barrier scheme etc. of double-face sound-absorbing whether implemented)；
4, field investigation, it was predicted that assessment, it is determined that design；
5, arrangement and method for construction is determined, draws construction drawing, design of node figure；
6, field lofting, concrete pedestal (32), retention wall construction (33), installation supporting construction (3) construction；
7, decoration sound absorbing module (1), observation daylighting module (2) unification in processing factory make；
8, on-site hoisting decoration sound absorbing module (1), successively installs from the inner to the outer.Now decoration sound absorbing module (1) bottom being put into flute profile shaped steel (41), decoration sound absorbing module (1) top uses buckle-type adjustable fastener (42) fastening, fastening bolt (45) fastening device sound absorbing module (1) bottom；
9, outer layer is according to design, is interrupted to install and observes daylighting module (2), reserved maintenance channel (5)；
10, lifting decoration sound absorbing module (1), the gap observed between daylighting module (2) use structure glue (19) to close.
The foregoing is only preferred embodiment of the present utility model and oneself, not in order to limit this utility model, all make within spirit of the present utility model and principle any amendment, equivalent replace and improvement etc. and be applied to other occasion that non-double curve line style cooling tower is eliminated the noise.Should be included within protection domain of the present utility model.
Claims (7)
1. a Hyperbolic cooling tower sound-attenuating system, by decoration sound absorbing module, observation daylighting module, installation supporting construction, module installs fastening structure and maintenance channel forms；Described decoration sound absorbing module uniform specification, is installed suspension ring formed by steel structure frame, sound absorption face, inner side, outside sound insulation decorative cover, elastic vibration isolation adhesive tape and top；Described observation daylighting module is made up of steel structure frame, interior vibration isolation installation component, sound control glass, outer vibration isolation align member, and form-factor and configuration are consistent with decoration sound absorbing module；Described installation supporting construction is made up of load steel construction, concrete pedestal, retention wall；Described module installation fastening structure is placed the decoration flute profile shaped steel of sound absorbing module by bottom, upper decoration sound absorbing module installs the L-shaped shaped steel of buckle-type adjustable fastener, the support shaped steel of midfoot support decoration sound absorbing module forms, flute profile shaped steel installs fastening bolt by inboard, and bottom arranges spilled water hole；It is characterized in that:
Described module is installed fastening structure and is arranged on load steel construction, polylith decoration sound absorbing module is vertically mounted on outside cooling tower and forms the arc acoustic barrier centered by cooling tower, arc acoustic barrier has multilamellar, outer layer is arranged on retention wall, innermost layer is arranged on outside cooling tower air inlet top, between two layers of arc acoustic barrier horizontally overlapping, form the stepped multilayer arc acoustic barrier of outer low and inner high shape；
Move away from the position of sensitive point for noise at cooling tower air inlet, the staged arc acoustic barrier number of plies reduces according to innermost layer, middle inner layer, secondary outer layer, secondary internal layer, middle outer layer, outermost order successive.
2. Hyperbolic cooling tower sound-attenuating system according to claim 1, it is characterized in that: the inner side that the described interior vibration isolation installation component observing daylighting module is arranged in steel structure frame, sound control glass is arranged on interior vibration isolation installation component, outer vibration isolation align member is installed outside sound control glass, observes daylighting modular spacing and is arranged on the retention wall in outer layer arc acoustic barrier.
3. Hyperbolic cooling tower sound-attenuating system according to claim 1, it is characterized in that: described maintenance channel system is arranged in the middle part of outer layer arc acoustic barrier, maintenance channel just to second layer arc acoustic barrier extend on retention wall, the width of second layer arc acoustic barrier extension is more than three times of maintenance channel width.
4. Hyperbolic cooling tower sound-attenuating system according to claim 1, it is characterized in that: described decoration sound absorbing module is by steel structure frame, outside decorative steel plate, decorative steel plate flanging is fixed on steel structure frame side, application sound-proof damping slurry in decorative steel plate, forms sound insulation decorative cover；Sound absorption face, inner side is sound-absorbing material, water-proof sound-transmitting thin film, louvered perforated plate from interior successive outward；Steel structure frame inside top, bottom are respectively provided with elastic vibration isolation adhesive tape；The gap of reserved about 10mm between vertically arranged decoration sound absorbing module, uses structure glue to close.
5. Hyperbolic cooling tower sound-attenuating system according to claim 4, it is characterised in that: it is that Open Side Down when described louvered perforated plate is installed, in the face of Sounnd source direction.
6. Hyperbolic cooling tower sound-attenuating system according to claim 1, it is characterized in that: the enveloping surface of described arc acoustic barrier is determined according to the position of sensitive point for noise, the number of plies of arc acoustic barrier, spacing, two layers of horizontally overlapping proportional parts of arc acoustic barrier require to determine according to noise elimination noise reduction amount.
7. Hyperbolic cooling tower sound-attenuating system according to claim 1, it is characterized in that: when noise elimination noise reduction amount requires significantly high, by mutually bonding for the decorative steel plate face of two packaged decorations sound absorbing modules, form compound sound insulation sound absorbing module, it is arranged on the arc acoustic barrier within outer layer, forms the noise elimination inserted sheet of double-face sound-absorbing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620120436.9U CN205403534U (en) | 2016-02-15 | 2016-02-15 | Two curve type cooling tower noise elimination systems |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620120436.9U CN205403534U (en) | 2016-02-15 | 2016-02-15 | Two curve type cooling tower noise elimination systems |
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| Publication Number | Publication Date |
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| CN205403534U true CN205403534U (en) | 2016-07-27 |
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ID=56447290
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620120436.9U Withdrawn - After Issue CN205403534U (en) | 2016-02-15 | 2016-02-15 | Two curve type cooling tower noise elimination systems |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107084628A (en) * | 2016-02-15 | 2017-08-22 | 厦门嘉达环保建造工程有限公司 | Hyperbolic cooling tower sound-attenuating system |
| WO2019153393A1 (en) * | 2018-02-08 | 2019-08-15 | 厦门嘉达环保科技有限公司 | Hyperbolic cooling tower windproof, anti-icing, and noise-reducing system |
-
2016
- 2016-02-15 CN CN201620120436.9U patent/CN205403534U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107084628A (en) * | 2016-02-15 | 2017-08-22 | 厦门嘉达环保建造工程有限公司 | Hyperbolic cooling tower sound-attenuating system |
| WO2017139968A1 (en) * | 2016-02-15 | 2017-08-24 | 厦门嘉达环保建造工程有限公司 | Hyperbolic cooling tower noise-attenuating system |
| CN107084628B (en) * | 2016-02-15 | 2019-07-26 | 厦门嘉达环保科技有限公司 | Hyperbolic cooling tower sound-attenuating system |
| WO2019153393A1 (en) * | 2018-02-08 | 2019-08-15 | 厦门嘉达环保科技有限公司 | Hyperbolic cooling tower windproof, anti-icing, and noise-reducing system |
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