CN101377387A - Noise reduction and anti-freezing device outside power plant cooling tower - Google Patents
Noise reduction and anti-freezing device outside power plant cooling tower Download PDFInfo
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- CN101377387A CN101377387A CNA2008101398241A CN200810139824A CN101377387A CN 101377387 A CN101377387 A CN 101377387A CN A2008101398241 A CNA2008101398241 A CN A2008101398241A CN 200810139824 A CN200810139824 A CN 200810139824A CN 101377387 A CN101377387 A CN 101377387A
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- 238000001816 cooling Methods 0.000 title claims abstract description 43
- 230000009467 reduction Effects 0.000 title claims description 40
- 238000007710 freezing Methods 0.000 title 1
- 230000002528 anti-freeze Effects 0.000 claims description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 229920000742 Cotton Polymers 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 9
- 239000004744 fabric Substances 0.000 claims description 7
- 210000001320 hippocampus Anatomy 0.000 claims description 6
- 238000010521 absorption reaction Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 230000002238 attenuated effect Effects 0.000 abstract 1
- 238000009434 installation Methods 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 230000007613 environmental effect Effects 0.000 description 5
- 230000001105 regulatory effect Effects 0.000 description 5
- 230000007246 mechanism Effects 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 230000008030 elimination Effects 0.000 description 3
- 238000003379 elimination reaction Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 206010013647 Drowning Diseases 0.000 description 2
- 230000030279 gene silencing Effects 0.000 description 2
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000011946 reduction process Methods 0.000 description 1
- 238000000527 sonication Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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Abstract
The utility model discloses a power plant's cooling tower falls outward and makes an uproar, freeze-proof device, in two adjacent sound absorption fall the board of making an uproar, one and horizontal beam deposit the fixed mounting who has the contained angle, and another is then rotatable, inhale the sound and fall the board transverse section shape of making an uproar and be "bullet" shape, it effectively inhales the sound area bigger, and inhale the sound and fall the clearance size adjustable between the board of making an uproar. Therefore, the sound waves emitted by the noise source are repeatedly attenuated between the two obliquely arranged sound-absorbing noise-reducing plates, so that the attenuation path is increased, the noise-reducing effect is more ideal under the condition of the same distribution density, and the quantity of the obliquely arranged distribution scheme can be reduced by 20% -40% compared with that of the sound-absorbing noise-reducing plates used in the vertical installation scheme under the same noise-reducing condition, so that the ideal scheme for reducing the manufacturing cost is provided.
Description
Technical field:
The present invention relates to a kind of cooling tower falling water noise reducing device that the power plant uses, relate in particular to the outer falling water noise reducing device of cooling Tata.
Background technology:
In the power plant, the drowning noise that is produced of cooling tower is very big, drowning noise in the cooling tower up to 85 decibels about, if very big to the noise injury of living in people on every side without the noise reduction sonication, along with improving constantly of national requirements for environmental protection, country proposes more strict requirement to the cooling tower falling water noise reducing in power plant, power plant factory circle noise must reach the III class standard among the GB12348-90, ambient noise reaches 3 class standards among the GB3096-93, promptly between daytime≤65 decibels, and night≤55 decibel.For this reason, after noise reduction process, the noise range of decrease is necessary 〉=more than 25 decibels.The applicant has studied more than ten years in power plant cooling precipitation noise reduction field, accumulate comparatively rich experience in power plant cooling tower noise reduction field, we and northwest electricity designing institute have successfully developed denoising device " cooling tower falling water noise reducing device " in the tower at home the earliest, its technical scheme is that full and accurate introduction is arranged among the 01230431.X in the patent No., this falling water noise reducing device is the first-selected product in the denoising device in the current power plant cooling Tata, it has represented the highest level of noise reduction product in the current cooling Tata, the noise reduction amplitude has reached 12 decibels, but the new demand of contrast national environmental protection, denoising device can not satisfy new noise reduction requirement in this tower.For this reason, we and Tohoku Electric Power designing institute will begin to develop the outer denoising device of tower of new generation of cooling stack in the end of the year 2006, investigated Sichuan Jiangling Utilities Electric Co., Ltd., silencing apparatus outside the tower was had to three cooling towers in the said firm before 2004, " three simultaneously " that this project has been passed through State Bureau of Environmental Protection's tissue in March, 2004 checked and accepted.We improve design on this basis again, solve this difficult problem more satisfactoryly.Before present patent application, we have carried out patent retrieval, find that Zhejiang Dongfa Environmental Engineering Co., Ltd. discloses a kind of technical scheme of utilizing acoustic barrier cooling tower to be carried out noise reduction in 200720108361.3, name is called " the noise elimination guiding device that is used for this society's noise reduction of large-scale cooling stack ", its technical scheme is for " it comprises noise elimination flow-guiding structure, lamina tecti, bottom surface, noise source; the flow-guiding structure that it is characterized in that eliminating the noise, lamina tecti, bottom surface form a continuous enclosed construction, and noise source is positioned at continuous encapsulating structure." this technical scheme is identical with the silencing apparatus that three cooling towers of Sichuan Jiangling Utilities Electric Co., Ltd. in 2004 have.Investigate through reality, the noise reduction of the outer denoising device of existing cooling Tata does not only reach the technique effect described in 200720108361.3 specifications, and absorbing sound and lowering noise plate consumption is big, even more serious is when environment temperature is lower than 0 ℃, air inlet at cooling tower also can produce extension ice phenomenon, the safety that influences cooling tower winter is normally moved, and therefore presses for a kind of cooling tower noise reduction of exploitation, defroster, to satisfy the environmental transformation requirement.
Summary of the invention:
Goal of the invention of the present invention provides the outer noise reduction of a kind of power plant's cooling Tata, defroster, and it can not only effectively reduce the noise of cooling tower, and makes cooling tower have antifreeze function, guarantees that the air inlet of cooling tower is not hung ice under the cold climate condition in the winter time.
The technical solution used in the present invention is:
The outer noise reduction of described power plant's cooling Tata, defroster, it comprises end face retaining sound assembly 1 and the antifreeze assembly 2 of facade noise reduction, end face retaining sound assembly 1 is made up of top surface frame 11 and waterproof bulkhead 12, the antifreeze assembly 2 of facade noise reduction comprises facade framework 21 and some blocks of absorbing sound and lowering noise plates 22, the inner of top surface frame 11 is fixed on the upper end of cooling tower 3 air inlets, the outer end of top surface frame 11 is fixed on the facade framework 21, the lower end of facade framework 21 fixes on the ground, waterproof bulkhead 12 is fixed on the top surface frame 11, described absorbing sound and lowering noise plate 22 is installed on the facade framework 21, there is spacing between the adjacent two absorbing sound and lowering noise plates 22, it is characterized in that: in two adjacent absorbing sound and lowering noise plates 22, there is an absorbing sound and lowering noise plate 22 to be fixedly mounted on the facade framework 21,22 of another absorbing sound and lowering noise plates are installed in rotation on the facade framework 21, have angle β between the horizontal gird on wherein hard-wired absorbing sound and lowering noise plate 22 and the facade framework 21; Described absorbing sound and lowering noise plate 22 comprises bracing frame, roundlet arc guide public attention 221, porous plate 222, water proof nonwoven cloth 223, acoustical cotton 224, upper sealing plate 225, following shrouding 226, porous plate 222 is coated on the bracing frame, the combination that is shaped as cuboid and trapezoidal four bank or ridge of bracing frame, roundlet arc guide public attention 221 is docked with the upper bottom surface of trapezoidal four bank or ridge, the bottom surface of trapezoidal four bank or ridge docks with cuboid width face, the lateral cross section of absorbing sound and lowering noise plate 22 is shaped as " bullet " shape, acoustical cotton 224 is placed on by porous plate 222, roundlet arc guide public attention 221, upper sealing plate 225, in the inner chamber that following shrouding 226 surrounds, between porous plate 222 and acoustical cotton 224, be provided with water proof nonwoven cloth 223.
Further, the angle β between the horizontal gird on described hard-wired absorbing sound and lowering noise plate 22 and the facade framework 21 is 5 °～45 °.
Further, support frame as described above comprises front end panel 227, middle gripper shoe 228, rear bearing sheet 229 and subiculum frame 230, and front end panel 227, middle gripper shoe 228 and rear bearing sheet 229 all are fixed on the subiculum frame 230.
Further, it also comprises the included angle regulating mechanism 4 of rotatable absorbing sound and lowering noise plate, it comprise total adjusting rod 41 and several minutes adjusting rod 42, divide adjusting rod 42 1 ends and rotate absorbing sound and lowering noise plate 22 and fixedly connected, the other end is connected with total adjusting rod 41 chains.
Noise reduction of the present invention mainly has benefited from following two aspects:
A, the structure of unique absorbing sound and lowering noise plate, the outer end is by the circular arc wind-guiding head and the combination of taper acoustic(al)absorbent of minor radius, interlude is two-sided sound-absorbing section, afterbody is a rectangle sound-absorbing face, the circular arc wind-guiding header structure of minor radius has increased the air intake opening, increased intake, reduced flowing resistance, be more conducive to the importing of cooling air, taper sound-absorbing section, cuboid sound-absorbing section and afterbody rectangle end face all have sound absorption function, can make the absorbing sound and lowering noise plate of equal volume have bigger effective sound-absorbing area like this, make that the fairshaped absorbing sound and lowering noise plate of " bullet " shape has stronger absorbing sound and lowering noise ability, compare with existing noise elimination flow deflector, the sound-absorbing area has had by a relatively large margin to be increased, and noise reduction is better.
B, sound absorption and noise reduction components is the most key part in this denoising device, it is installed in some blocks of absorbing sound and lowering noise plates on the facade framework spaced reciprocally, in two adjacent absorbing sound and lowering noise plates, there is one to be fixedly mounted on the facade framework, another then is installed in rotation on the facade framework, there is angle between the horizontal gird on wherein hard-wired absorbing sound and lowering noise plate and the facade framework, so just can make sound wave that noise source sends through decay repeatedly between the two absorbing sound and lowering noise plates that are in tilted layout, thereby increase the decay path, under the condition of equal distribution density, its noise reduction is desirable more.Under identical noise reduction condition, the inclined type distribution scheme absorbing sound and lowering noise plate quantity more required than vertical mount scheme can reduce 20%～40%, can reduce the cost cost significantly, because the adjustable included angle between the two adjacent absorbing sound and lowering noise plates makes the noise reduction of sound absorption and noise reduction components realize adjustable.
Antifreeze function of the present invention depends primarily on the adjustable included angle between the two adjacent absorbing sound and lowering noise plates on the antifreeze assembly of facade noise reduction, like this can be by regulating the gap between the two adjacent absorbing sound and lowering noise plates, make it neither to influence cooling effect, can prevent from again to cause cooling tower to hang the ice phenomenon because of outside air temperature is low excessively.
Description of drawings:
Fig. 1, Fig. 2 are structural representation of the present invention;
Wherein, Fig. 2 is an A-A cross-sectional view among Fig. 1;
Fig. 3 is the structural representation of the antifreeze assembly of facade noise reduction;
Fig. 4 is the vertical view (state 1) of the antifreeze assembly of facade noise reduction;
Fig. 5 is the vertical view (state 2) of the antifreeze assembly of facade noise reduction;
Fig. 6 is the front view of absorbing sound and lowering noise plate; Fig. 7 is the B-B cutaway view Amplified image of Fig. 6;
Fig. 8 is an A-A cutaway view Amplified image among Fig. 6; Fig. 9 is that C among Fig. 6 is to view;
Figure 10, Figure 11 are a kind of structural representation of the antifreeze assembly included angle regulating mechanism of noise reduction;
Wherein, Figure 10 is the partial enlarged drawing at D place among Fig. 4; Figure 11 is the A-A cutaway view Amplified image of Figure 10.Among the figure: 1-end face retaining sound assembly; The antifreeze assembly of 2-facade noise reduction; The 11-top surface frame; The 12-waterproof bulkhead; 21-facade framework; 22-absorbing sound and lowering noise plate; 221-roundlet arc guide public attention; The 222-porous plate; The 223-water proof nonwoven cloth; The 224-acoustical cotton; The 225-upper sealing plate; Shrouding under the 226-; The 227-front end panel; Gripper shoe among the 228-; The 229-rear bearing sheet; 230-subiculum frame; The 231-mount pad; The 3-cooling tower; The 4-included angle regulating mechanism; The total adjusting rod of 41-; 42-divides adjusting rod; The 43-bolt; The 44-screw; The 45-rotating shaft; The 5-concrete pedestal.
The specific embodiment:
Below in conjunction with accompanying drawing the present invention is elaborated:
Embodiment 1: the outer noise reduction of described cooling Tata, defroster, as Fig. 1, shown in 2, it comprises end face retaining sound assembly 1 and the antifreeze assembly 2 of facade noise reduction, end face retaining sound assembly 1 is made up of top surface frame 11 and waterproof bulkhead 12, the antifreeze assembly 2 of facade noise reduction comprises third gear facade framework 21 and the some blocks of absorbing sound and lowering noise plates 22 that are welded by I-steel, the inner of top surface frame 11 is fixed on the upper end of cooling tower 3 air inlets, the outer end of top surface frame 11 is fixed on the facade framework 21, the lower end of facade framework 21 fixes on the ground on the concrete pedestal 5 of precoating, and waterproof bulkhead 12 is fixed on the top surface frame 11; All absorbing sound and lowering noise plates 22 are divided into three groups and are installed in spaced reciprocally on the facade framework 21, there is spacing between the adjacent two absorbing sound and lowering noise plates 22, in two adjacent absorbing sound and lowering noise plates 22, there is one to be fixedly mounted on the facade framework 21, another then is installed in rotation on the facade framework 21, angle β is 1～45 ° between the horizontal gird on wherein hard-wired absorbing sound and lowering noise plate 22 and the facade framework 21, this example is 15 °, and hard-wired absorbing sound and lowering noise plate 22 is fixed on the horizontal I-steel by upper sealing plate 225, following shrouding 226 and mount pad 231; Described absorbing sound and lowering noise plate 22 comprises bracing frame, roundlet arc guide public attention 221, porous plate 222, water proof nonwoven cloth 223, acoustical cotton 224, upper sealing plate 225, following shrouding 226, support frame as described above is by front end panel 227, middle gripper shoe 228, rear bearing sheet 229 and subiculum frame 230 are formed, and front end panel 227, middle gripper shoe 228 and rear bearing sheet 229 all are fixed on the subiculum frame 230, porous plate 222 is coated on the bracing frame, the combination that is shaped as cuboid and trapezoidal four bank or ridge of bracing frame, roundlet arc guide public attention 221 is docked with the upper bottom surface of trapezoidal four bank or ridge, the bottom surface of trapezoidal four bank or ridge docks with cuboid width face, the lateral cross section shape of absorbing sound and lowering noise plate 22 is " bullet " shape, acoustical cotton 224 is placed on by porous plate 222, roundlet arc guide public attention 221, upper sealing plate 225, in the inner chamber that following shrouding 226 surrounds, between porous plate 222 and acoustical cotton 224, be provided with water proof nonwoven cloth 223.
In the upper surface of the upper sealing plate 225 of rotating absorbing sound and lowering noise plate 22 and the lower end of following shrouding 226 mount pad 231 is housed, horizontal I-steel on mount pad 231 and the facade framework 21 makes rotating absorbing sound and lowering noise plate 22 possess rotating function by the axis hole mode of being connected, all rotatable absorbing sound and lowering noise plates are controlled by absorbing sound and lowering noise plate holder angle governor motion 4, described absorbing sound and lowering noise plate holder angle governor motion 4 is made up of a total adjusting rod 41 and some branch adjusting rods 42, all divide the outer end of adjusting rod 42 all to be hinged by bolt 43 and total adjusting rod 41, the inner is fixed on down on the shrouding 226 by screw 44, divide adjusting rod 42 and total adjusting rod 41 to constitute a kind of absorbing sound and lowering noise plate holder angle governor motion 4 of simple and easy shape, can regulate the outer noise reduction of whole cooling Tata by handling total adjusting rod 41, the rotatable absorbing sound and lowering noise plate 22 of in the defroster all is with respect to the angle between the hard-wired absorbing sound and lowering noise plate 22, thereby reaches desirable noise reduction.To winter, when outside air temperature is lower than 0 ℃, can the gap between the absorbing sound and lowering noise plate 22 be reduced by included angle regulating mechanism 4, in guaranteeing cooling tower, have under the prerequisite of suitable insulation, make cooling tower possess antifreeze function, guarantee that cooling tower can normally move safely in the winter time.
Claims (4)
1, the outer noise reduction of power plant's cooling Tata, defroster, it comprises end face retaining sound assembly (1) and the antifreeze assembly of facade noise reduction (2), end face retaining sound assembly (1) is made up of top surface frame (11) and waterproof bulkhead (12), the antifreeze assembly of facade noise reduction (2) comprises facade framework (21) and some blocks of absorbing sound and lowering noise plates (22), the inner of top surface frame (11) is fixed on the upper end of cooling tower (3) air inlet, the outer end of top surface frame (11) is fixed on the facade framework (21), the lower end of facade framework (21) fixes on the ground, waterproof bulkhead (12) is fixed on the top surface frame (11), described absorbing sound and lowering noise plate (22) is installed on the facade framework (21), there is spacing between the adjacent two absorbing sound and lowering noise plates (22), it is characterized in that: in two adjacent absorbing sound and lowering noise plates (22), there is an absorbing sound and lowering noise plate (22) to be fixedly mounted on the facade framework (21), another absorbing sound and lowering noise plate (22) then is installed in rotation on the facade framework (21), has angle β between the horizontal gird on wherein hard-wired absorbing sound and lowering noise plate (22) and the facade framework (21); Described absorbing sound and lowering noise plate (22) comprises bracing frame, roundlet arc guide public attention (221), porous plate (222), water proof nonwoven cloth (223), acoustical cotton (224), upper sealing plate (225), following shrouding (226), porous plate (222) is coated on the bracing frame, the combination that is shaped as cuboid and trapezoidal four bank or ridge of bracing frame, roundlet arc guide public attention (221) is docked with the upper bottom surface of trapezoidal four bank or ridge, the bottom surface of trapezoidal four bank or ridge docks with cuboid width face, the lateral cross section of absorbing sound and lowering noise plate (22) is shaped as " bullet " shape, acoustical cotton (224) is placed on by porous plate (222), roundlet arc guide public attention (221), upper sealing plate (225), in the inner chamber that following shrouding (226) surrounds, between porous plate (222) and acoustical cotton (224), be provided with water proof nonwoven cloth (223).
2, according to the outer noise reduction of the described power plant of claim 1 cooling Tata, defroster, it is characterized in that: the angle β between the horizontal gird on described hard-wired absorbing sound and lowering noise plate (22) and the facade framework (21) is 5 °～45 °.
3, according to the outer noise reduction of the described power plant of claim 1 cooling Tata, defroster, it is characterized in that: support frame as described above comprises front end panel (227), middle gripper shoe (228), rear bearing sheet (229) and subiculum frame (230), and front end panel (227), middle gripper shoe (228) and rear bearing sheet (229) all are fixed on the subiculum frame (230).
4, according to the outer noise reduction of the described power plant of claim 1 cooling Tata, defroster, the corner governor motion (4) that it is characterized in that: further comprising rotatable absorbing sound and lowering noise plate, it comprises total adjusting rod (41) and several minutes adjusting rods (42), divide adjusting rod (42) one ends to fixedly connected with rotation absorbing sound and lowering noise plate (22), the other end is connected with total adjusting rod (41) chain.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101398241A CN101377387B (en) | 2008-09-11 | 2008-09-11 | Noise reducing and anti-freezing device outside power plant cooling tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101398241A CN101377387B (en) | 2008-09-11 | 2008-09-11 | Noise reducing and anti-freezing device outside power plant cooling tower |
Publications (2)
| Publication Number | Publication Date |
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| CN101377387A true CN101377387A (en) | 2009-03-04 |
| CN101377387B CN101377387B (en) | 2011-11-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2008101398241A Expired - Fee Related CN101377387B (en) | 2008-09-11 | 2008-09-11 | Noise reducing and anti-freezing device outside power plant cooling tower |
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| CN (1) | CN101377387B (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101881574A (en) * | 2010-05-31 | 2010-11-10 | 金坛市塑料厂 | Synchronous rotation on-off mechanism of wind boards |
| CN101881565A (en) * | 2010-05-31 | 2010-11-10 | 金坛市塑料厂 | Automatic starting and closing type anti-freezing device of wind screen of cooling tower |
| CN102155850A (en) * | 2011-05-06 | 2011-08-17 | 哈尔滨工业大学（威海） | Direct air cooling island windbreak deflecting device for power station |
| CN101749964B (en) * | 2010-01-05 | 2012-03-07 | 济南旭日环保设备有限公司 | Noise eliminating and anti-freezing device of cooling tower |
| CN102538504A (en) * | 2012-02-09 | 2012-07-04 | 辽宁赛沃斯节能技术有限公司 | Optimized energy-saving cold-preventing system and method at air inlet sides of cooling tower |
| CN102829650A (en) * | 2012-07-20 | 2012-12-19 | 浙江东发环保工程有限公司 | Sound eliminating and noise lowering device of large-sized natural ventilation cooling tower in thermal power plant |
| CN103047877A (en) * | 2013-01-21 | 2013-04-17 | 哈尔滨宇神科技有限公司 | Method for improving cooling efficiency of water tower and reducing noise of water tower |
| CN104296556A (en) * | 2014-10-27 | 2015-01-21 | 安徽三星环保装备制造有限公司 | Hyperbolic cooling tower water spray noise abatement and thermal insulation system |
| CN106610233A (en) * | 2017-01-10 | 2017-05-03 | 吴光明 | Silencing structure for power plant water cooling tower |
| CN107356129A (en) * | 2017-07-28 | 2017-11-17 | 中国电力工程顾问集团西北电力设计院有限公司 | A kind of denoising device of mechanical-draft cooling tower |
| CN110081732A (en) * | 2019-06-04 | 2019-08-02 | 广东览讯科技开发有限公司 | Band silencer negative-pressure type is centrifuged air-draft-type cooling tower |
| CN111457779A (en) * | 2020-04-30 | 2020-07-28 | 济南蓝辰能源技术有限公司 | Indirect air cooling air guide system capable of changing radial direction into different angles |
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| DE2547719C2 (en) * | 1975-10-24 | 1983-01-13 | Ernst, Günter, Prof.Dr.-Ing., 7500 Karlsruhe | Noise abatement device in a cooling tower |
| FR2459341A1 (en) * | 1979-06-20 | 1981-01-09 | Coignet Sa | ATMOSPHERIC REFRIGERANT DISPERSION DISCHARGE WITH INDUCED DRAFT |
| CN2498565Y (en) * | 2001-07-06 | 2002-07-03 | 金坛市塑料厂 | Noise reducer for cooling tower falling water |
| CN2516932Y (en) * | 2001-12-12 | 2002-10-16 | 余根林 | Noise reducer of cooling tower |
| CN2556583Y (en) * | 2002-08-13 | 2003-06-18 | 李晨生 | Wind guad defroster for louver type cooling tower |
| CN2624148Y (en) * | 2003-08-06 | 2004-07-07 | 北京绿创环保科技有限责任公司 | Hyperbolic cooling tower trickle noise abatement equipment |
| CN201050945Y (en) * | 2007-04-20 | 2008-04-23 | 浙江东发环保工程有限公司 | Noise elimination flow guide device for large natural ventilation cooling tower |
| CN201302392Y (en) * | 2008-09-11 | 2009-09-02 | 金坛市塑料厂 | Noise reduction and anti-freezing device outside power plant cooling tower |
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| CN101749964B (en) * | 2010-01-05 | 2012-03-07 | 济南旭日环保设备有限公司 | Noise eliminating and anti-freezing device of cooling tower |
| CN101881565A (en) * | 2010-05-31 | 2010-11-10 | 金坛市塑料厂 | Automatic starting and closing type anti-freezing device of wind screen of cooling tower |
| CN101881574A (en) * | 2010-05-31 | 2010-11-10 | 金坛市塑料厂 | Synchronous rotation on-off mechanism of wind boards |
| CN102155850A (en) * | 2011-05-06 | 2011-08-17 | 哈尔滨工业大学（威海） | Direct air cooling island windbreak deflecting device for power station |
| CN102538504A (en) * | 2012-02-09 | 2012-07-04 | 辽宁赛沃斯节能技术有限公司 | Optimized energy-saving cold-preventing system and method at air inlet sides of cooling tower |
| CN102538504B (en) * | 2012-02-09 | 2013-09-11 | 辽宁赛沃斯节能技术有限公司 | Optimized energy-saving cold-preventing system and method at air inlet sides of cooling tower |
| CN102829650A (en) * | 2012-07-20 | 2012-12-19 | 浙江东发环保工程有限公司 | Sound eliminating and noise lowering device of large-sized natural ventilation cooling tower in thermal power plant |
| CN103047877B (en) * | 2013-01-21 | 2016-11-23 | 哈尔滨东专科技有限公司 | The method that water tower cooling effectiveness can reduce again water tower noise can be improved |
| CN103047877A (en) * | 2013-01-21 | 2013-04-17 | 哈尔滨宇神科技有限公司 | Method for improving cooling efficiency of water tower and reducing noise of water tower |
| CN104296556A (en) * | 2014-10-27 | 2015-01-21 | 安徽三星环保装备制造有限公司 | Hyperbolic cooling tower water spray noise abatement and thermal insulation system |
| CN106610233A (en) * | 2017-01-10 | 2017-05-03 | 吴光明 | Silencing structure for power plant water cooling tower |
| CN107356129A (en) * | 2017-07-28 | 2017-11-17 | 中国电力工程顾问集团西北电力设计院有限公司 | A kind of denoising device of mechanical-draft cooling tower |
| CN110081732A (en) * | 2019-06-04 | 2019-08-02 | 广东览讯科技开发有限公司 | Band silencer negative-pressure type is centrifuged air-draft-type cooling tower |
| CN110081732B (en) * | 2019-06-04 | 2024-02-02 | 广东览讯科技开发有限公司 | Negative pressure type centrifugal exhaust type cooling tower with muffler |
| CN111457779A (en) * | 2020-04-30 | 2020-07-28 | 济南蓝辰能源技术有限公司 | Indirect air cooling air guide system capable of changing radial direction into different angles |
| CN111457779B (en) * | 2020-04-30 | 2022-02-18 | 济南蓝辰能源技术有限公司 | Indirect air cooling air guide system capable of changing radial direction into different angles |
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| CN101377387B (en) | 2011-11-09 |
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