CN2449180Y - Silencer for air outlet of cooling tower - Google Patents
Silencer for air outlet of cooling tower Download PDFInfo
- Publication number
- CN2449180Y CN2449180Y CN 00221254 CN00221254U CN2449180Y CN 2449180 Y CN2449180 Y CN 2449180Y CN 00221254 CN00221254 CN 00221254 CN 00221254 U CN00221254 U CN 00221254U CN 2449180 Y CN2449180 Y CN 2449180Y
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- CN
- China
- Prior art keywords
- sound absorber
- cooling tower
- air outlet
- sound absorbing
- class
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model relates to a silencer for an air outlet of a cooling tower. The silencer for an air outlet of a cooling tower is provided with a silencer case body, wherein, a periphery barrel-shaped sound absorbing body composed of keel frames assembled into a whole body is stuck to the inner wall of the silencer case body. A central barrel-shaped sound absorbing body stuck to the keel frames is arranged at the center of the case body. At least three radial radiation A vane type sound absorbing bodies and at least three radial radiation B vane type sound absorbing bodies are arranged between the central barrel-shaped sound absorbing body and the periphery barrel-shaped sound absorbing body. The A vane type sound absorbing bodies and the B vane type sound absorbing bodies are alternately and evenly distributed at intervals. In addition, the keel frames of both ends are respectively fixed to the keel frame of the central barrel-shaped sound absorbing body and the keel frame of the periphery barrel-shaped sound absorbing body through fixing elements. The utility model has the advantages of great silencing amount for the noise of a cooling tower blower, small air outlet resistance, great extinction ratio of the sound absorbing body, high temperature resistance and humidity prevention.
Description
The utility model relates to the silencing apparatus in the acoustics, especially a kind of silencing apparatus that is used for the cooling tower air outlet.
Cooling tower buzz is mainly based on fan noise and drowning noise, and the cooling tower air outlet noise ratio big 5～10dB of air inlet noise (A).The noise method of controlling comprises multiple technologies such as noise elimination, sound absorption, sound insulation, vibration isolation and damping shock absorption at present, obtained certain effect by these technology, for example " the resonant cooling tower silencer in film chamber " of application number 97227679.3 discloses a kind of cooling tower silencer that sticks rigid plastics film sound absorber on sound absorber keel frame two sides, though it has tangible noise reduction to low-frequency noise, it also comes with some shortcomings: it is big to go out wind resistance; Less to blower fan of cooling tower noise sound deadening capacity, noise reduction is 4～6dB; The sound absorber extinction coefficient is less; Aging easily and not anti-naked light in the hot and humid air-flow.
The purpose of this utility model provides a kind of bigger to blower fan of cooling tower noise sound deadening capacity, and it is little to go out wind resistance, and the sound absorber extinction coefficient is bigger, and is high temperature resistant and be not afraid of moist cooling tower air outlet silencer.
The technical scheme that realizes the utility model purpose is: a kind of cooling tower air outlet silencer, has suppressor case, in suppressor case, sticked by the peripheral tubular sound absorber of keel frame assembly unit all-in-one-piece, the suppressor case center is provided with the center tubular sound absorber that sticks on the keel frame, between center tubular sound absorber and peripheral tubular sound absorber, be provided with the Class A chip sound absorber of the radial radiation more than 3 and the Class B chip sound absorber of the radial radiation more than 3, Class A sound absorber and Class B sound absorber alternate intervals are uniform, and two ends keel frame is separately fixed on center tubular sound absorber keel frame and the peripheral tubular sound absorber keel frame by fixture.
Realize that the further technical scheme of the utility model purpose is: described peripheral tubular sound absorber is made of cotton warming plate in hydrophobic ore deposit (rock) that sticks on suppressor case and the perforated plate that tightens together with it.
Described center tubular sound absorber and Class A chip sound absorber constitute by the cotton warming plate in the hydrophobic ore deposit (rock) of outer two-layer perforated plate and nexine.
Described Class B chip sound absorber is made of outer two-layer microwell plate and nexine air layer.
The good effect of implementing according to technique scheme that the utlity model has is: noise is absorbed by peripheral tubular sound absorber, center tubular sound absorber and middle chip sound absorber by behind this silencer, and the sound deadening capacity of noise is bigger, and noise reduction is obviously good; When air passed through the passage of this silencer, because it is less to go out wind resistance, wind speed can not weaken, and can not influence the normal operation of cooling tower; The sound absorber extinction coefficient that the utility model adopts is bigger, and is high temperature resistant and be not afraid of humidity.
Below in conjunction with drawings and Examples the utility model is described in further detail.
Fig. 1 is the front view of the utility model embodiment;
Fig. 2 is the top plan view of the utility model embodiment;
Fig. 3 is the upward view of the utility model embodiment;
Fig. 4 is the B-B cutaway view of Fig. 2;
Fig. 5 is the C-C cutaway view of Fig. 2;
Fig. 6 is the D-D cutaway view of Fig. 2;
Fig. 7 is the A-A cutaway view of Fig. 2;
Fig. 8 is the utility model embodiment and cooling tower assembling schematic diagram.
Fig. 1, Fig. 2 and the noise elimination housing 1 that the utlity model has shown in Figure 3, wall has sticked by the peripheral tubular sound absorber 2 of keel frame 7-1 assembly unit all-in-one-piece within it, housing 1, peripheral tubular sound absorber 2 usefulness pulling rivets or wood screw and keel frame 7-1 fuse, housing 1 center is provided with the center tubular sound absorber 3 that sticks on the keel frame 7-2, between central tube ideophone body 3 and peripheral tubular sound absorber 2, be provided with the Class A chip sound absorber 4 of 3 above radial radiations and the Class B chip sound absorber 5 of 3 above radial radiations, the Class A chip sound absorber 4 of present embodiment and the best enforcement value of Class B chip sound absorber 5 are 4, this two kinds of sound absorbers (4 and 5) alternate intervals is uniform, and two ends keel frame 7-3 is separately fixed on the keel frame 7-1 of keel frame center tubular sound absorber keel frame 7-2 and peripheral tubular sound absorber by fixed body 6.
The peripheral tubular sound absorber 2 of the utility model embodiment shown in Figure 4 is made of cotton warming plate 2-1 in hydrophobic ore deposit (rock) that sticks on suppressor case 1 and the perforated plate 2-2 that tightens together with it.Wherein cotton warming plate 2-1 thickness optimum value in hydrophobic ore deposit (rock) is 70mm, and perforated plate 2-2 is a galvanized steel plain sheet, and the thickness optimum value is 0.5mm, punching rate 〉=20%.
The center tubular sound absorber 3 of the utility model embodiment shown in Figure 5 is made of the cotton warming plate 3-2 in the hydrophobic ore deposit (rock) of outer two-layer perforated plate (3-1 and 3-3) and nexine.Wherein cotton warming plate 3-2 thickness optimum value in hydrophobic ore deposit (rock) is 70mm, and perforated plate (3-1 and 3-3) is a galvanized steel plain sheet, and the thickness optimum value is 0.5mm, punching rate 〉=20%.
The Class A chip sound absorber 4 of the utility model embodiment shown in Figure 6 is made of the cotton warming plate 4-2 in the hydrophobic ore deposit (rock) of outer two-layer perforated plate (4-1 and 4-3) and nexine.Wherein cotton warming plate 4-2 thickness optimum value in hydrophobic ore deposit (rock) is 70mm, and perforated plate (4-1 and 4-3) adopts galvanized steel plain sheet, and the thickness optimum value is 0.5mm, punching rate 〉=20%.
The Class B chip sound absorber 5 of the utility model embodiment shown in Figure 7 is made of outer two-layer microwell plate (5-1 and 5-3) and nexine air layer (5-2).Wherein microwell plate (5-1 and 5-3) adopts galvanized steel plain sheet, and the thickness optimum value is 0.5mm, punching rate≤3%, and air layer 5-2 thickness optimum value is 75mm.
Fixture 6 in the present embodiment adopts fixing spacing angle steel, is fixed on the keel frame 7 with pulling rivet or wood screw.
When the utility model is implemented, be connected with the screw assembling with cooling tower air outlet flange 10 by muffler flange 9, described muffler flange 9 is the board-like damping shock absorption flange of rubber.The noise that produces when cooling tower 11 is during along channels spread of the present utility model, sound wave just looses and flows in the sound-absorbing material of porous, air molecule vibration in the excitation material in the countless apertures, because friction and adhesive tape resistance, make acoustic energy be transferred to heat energy, thereby it is bigger to reach the noise sound deadening capacity, goes out the little purpose of wind resistance.The acoustic absorptivity of the various sound absorbers of employing said structure is bigger, and the cotton warming plate of the galvanized steel plain sheet of sound absorber or hydrophobic ore deposit (rock) is high temperature resistant and be not afraid of humidity.One times of draught fan impeller diameter of 45 ° of directions outside cooling tower 11 air outlets, it is 67.5dB (A) that the machine that blows in does not have the noise that the standard type cooling tower of noise elimination sound device records at measuring point M place, it is 54.5dB (A) that the machine that blows in is equipped with the noise that primary standard type cooling tower of the present utility model records at measuring point M place, and total sound deadening capacity reaches 13dB (A).
Claims (7)
1, a kind of cooling tower air outlet silencer, has suppressor case (1), it is characterized in that: sticked by the peripheral tubular sound absorber (2) of keel frame (7-1) assembly unit all-in-one-piece at suppressor case (1) inwall, housing (1) center is provided with the center tubular sound absorber (3) that sticks on the keel frame (7-2), between center tubular sound absorber (3) and peripheral tubular sound absorber (2), be provided with the Class A chip sound absorber (4) of the radial radiation more than 3 and the Class B chip sound absorber (5) of the radial radiation more than 3, Class A chip sound absorber (4) and Class B chip sound absorber (5) alternate intervals are uniform, and two ends keel framves (7-3) are separately fixed on center tubular sound absorber keel framves (7-2) and the peripheral tubular sound absorber keel framves (7-1) by fixture (6).
2, cooling tower air outlet silencer according to claim 1 is characterized in that: be provided with and its all-in-one-piece securing member (8) at suppressor case (1) outer wall.
3, cooling tower air outlet silencer according to claim 1 is characterized in that: peripheral tubular sound absorber (2) is made of cotton warming plate in hydrophobic ore deposit (rock) (2-1) that sticks on suppressor case (1) and the perforated plate (2-2) that tightens together with it.
4, cooling tower air outlet silencer according to claim 1 is characterized in that: center tubular sound absorber (3) is made of hydrophobic ore deposit (rock) warming plate (3-2) of outer two-layer perforated plate (3-1 and 3-3) and nexine.
5, cooling tower air outlet silencer according to claim 1 is characterized in that: Class A chip sound absorber (4) is made of the cotton warming plate in hydrophobic ore deposit (rock) (4-2) of outer two-layer perforated plate (4-1 and 4-3) and nexine.
6, cooling tower air outlet silencer according to claim 1 is characterized in that: Class B chip sound absorber (5) is made of outer two-layer microwell plate (5-1 and 5-3) and nexine air layer (5-2).
7, cooling tower air outlet silencer according to claim 1 is characterized in that: it is connected with the screw assembling with cooling tower air outlet flange (10) by muffler flange (9), and muffler flange (9) is the board-like damping shock absorption flange of rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00221254 CN2449180Y (en) | 2000-08-01 | 2000-08-01 | Silencer for air outlet of cooling tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00221254 CN2449180Y (en) | 2000-08-01 | 2000-08-01 | Silencer for air outlet of cooling tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2449180Y true CN2449180Y (en) | 2001-09-19 |
Family
ID=33586173
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00221254 Expired - Fee Related CN2449180Y (en) | 2000-08-01 | 2000-08-01 | Silencer for air outlet of cooling tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2449180Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102374801A (en) * | 2010-08-23 | 2012-03-14 | 李宁 | Wind-driving air cooling tower |
| CN103471419A (en) * | 2013-09-23 | 2013-12-25 | 北京中亚康源环保工程有限公司 | Directional exhaust noise attenuation system of large machine ventilation cooling tower |
| CN105952687A (en) * | 2016-03-17 | 2016-09-21 | 潘泉方 | Fan silencer |
| CN108039167A (en) * | 2018-01-16 | 2018-05-15 | 江苏华东正大空调设备有限公司 | A kind of array type silencer and its processing method |
-
2000
- 2000-08-01 CN CN 00221254 patent/CN2449180Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102374801A (en) * | 2010-08-23 | 2012-03-14 | 李宁 | Wind-driving air cooling tower |
| CN102374801B (en) * | 2010-08-23 | 2014-06-18 | 李宁 | Wind-driving air cooling tower |
| CN103471419A (en) * | 2013-09-23 | 2013-12-25 | 北京中亚康源环保工程有限公司 | Directional exhaust noise attenuation system of large machine ventilation cooling tower |
| CN105952687A (en) * | 2016-03-17 | 2016-09-21 | 潘泉方 | Fan silencer |
| CN108039167A (en) * | 2018-01-16 | 2018-05-15 | 江苏华东正大空调设备有限公司 | A kind of array type silencer and its processing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |