CN202048808U - Exhaust silencer for cooling tower - Google Patents
Exhaust silencer for cooling tower Download PDFInfo
- Publication number
- CN202048808U CN202048808U CN2011201433717U CN201120143371U CN202048808U CN 202048808 U CN202048808 U CN 202048808U CN 2011201433717 U CN2011201433717 U CN 2011201433717U CN 201120143371 U CN201120143371 U CN 201120143371U CN 202048808 U CN202048808 U CN 202048808U
- Authority
- CN
- China
- Prior art keywords
- cooling tower
- exhaust silencer
- silencer
- exhaust
- anechoic sheet
- Prior art date
- 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.)
- Expired - Fee Related
Links
- 230000003584 silencer Effects 0.000 title claims abstract description 39
- 238000001816 cooling Methods 0.000 title claims abstract description 31
- 230000005855 radiation Effects 0.000 claims abstract description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 230000008901 benefit Effects 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 5
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 230000030279 gene silencing Effects 0.000 abstract 7
- 239000006096 absorbing agent Substances 0.000 description 11
- 230000008030 elimination Effects 0.000 description 7
- 238000003379 elimination reaction Methods 0.000 description 7
- 238000009423 ventilation Methods 0.000 description 6
- 230000008859 change Effects 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 230000002093 peripheral effect Effects 0.000 description 3
- 230000001413 cellular effect Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000008033 biological extinction Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
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- Exhaust Silencers (AREA)
Abstract
The utility model discloses an exhaust silencer for a cooling tower. The exhaust silencer comprises a columnar silencer housing and a silencing body which is arranged inside the silencer housing, wherein the silencing body comprises a central silencing sheet which is coaxial with the silencer housing and silencing sheets which are equidistantly arranged between the central silencing sheet and the silencer housing in a radial radiation manner; the central silencing sheet takes the shape of a cone, and the cone is vertically downward; and an air duct is arranged below the silencer housing. The exhaust silencer for the cooling tower can effectively control exhaust noise of the cooling tower, guarantees ventilating effect of an exhaust port, has a wide silencing frequency range, has the advantages of attractive appearance, low cost, convenience in assembly and disassembly and the like and has excellent environmental and social benefits.
Description
Technical field
The utility model belongs to noise control and administers technical field, is specifically related to a kind of exhaust silencer that is used for cooling tower.
Background technology
The function of cooling tower in circulation is the hot water cooling of will take out of in the device, for recycling once more.Can be divided into cooling stack, blower fan secondary ventilation cooling tower, mechanical-draft cooling tower, wet/the dry type cooling tower by its purposes difference, and version such as ejection-type cooling tower.The noise source of general cooling tower mainly comprises fan noise, mechanical noise, electric moter noise, trickle noise, water pump noise etc.Except directly noise source being taken measures, sound barrier being set on its route of transmission and setting up silencer is effective method with the control noise to external radiation.The exhaust outlet of cooling tower generally is positioned at tower body top and since its open-air place and self drift ice more, when the design exhaust silencer, except consider to eliminate the noise with ventilation effect, water resistance also should obtain guaranteeing.At present, the exhaust silencer that is used for cooling tower adopts dissipative muffler more, and common form comprises straight circle, circular concentric, cellular etc.The ventilation effect of straight circular silencer and circular concentric silencer is better, but the noise elimination poor effect.The draught area of cellular silencer can be adjusted by adjusting the lattice mode, but has problems such as the noise elimination frequency domain is narrower.
China Patent No. 00221254.4, " cooling tower air outlet silencer " discloses a kind of cooling tower air outlet silencer, it has suppressor case, sticked by the peripheral tubular sound absorber of keel frame assembly unit all-in-one-piece at the suppressor case inwall, the housing 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 chip sound absorber and Class B chip 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.Though it is bigger that it has blower fan of cooling tower noise sound deadening capacity, it is little to go out wind resistance, and the sound absorber extinction coefficient is bigger, high temperature resistant and be not afraid of moist advantage, but still has the narrower problem of noise elimination frequency domain.
The utility model content
The utility model provides a kind of exhaust silencer that is used for cooling tower, frequency of noise elimination wide ranges.
A kind of exhaust silencer that is used for cooling tower comprises columniform muffler shell and is located at the interior muffler body of muffler shell; Described muffler body comprises with the coaxial center anechoic sheet of muffler shell and is located at the anechoic sheet of equidistantly arranging that is of radial radiation between center anechoic sheet and the muffler shell; Described center anechoic sheet is conical, and circular cone vertically downward.Because it is big that conical anechoic sheet becomes from bottom to top gradually, makes that the noise elimination channel cross-section also is gradual change, therefore widened the frequency range of eliminating the noise.
Described center circle taper anechoic sheet top is provided with circular steel plate, has prevented that rainwater from directly falling into conical anechoic sheet inside, and water resistance is better.
Described muffler shell below is provided with ventilating duct, and ventilating duct adopts steel plate materials, and the ventilating duct two ends are connected with exhaust outlet edge, cooling tower top with the muffler shell edge respectively.After adding ventilating duct, make that the cross section of ventilation shaft is gradual change, thereby reduced the stream pressure loss.
Preferably, described ventilating duct is detachable, is easy to remove and repair.
Preferred, adopt flange to be connected between described ventilating duct and the muffler shell, the employing flange is connected between described ventilating duct and the cooling tower.
Described muffler shell and muffler body are detachable, are easy to remove and repair.
But described muffler shell, muffler body and ventilating duct are the vertical lifting formula, and be easy for installation.
Preferably, the inner-walls of duct of described muffler shell is provided with microperforated panel, and moisture resistance is good.
Described center circle taper anechoic sheet and anechoic sheet inside are equipped with microperforated panel, have moisture-resistance preferably.
The utility model frequency of noise elimination wide ranges, easy accessibility, waterproof, moisture-resistance are better.By the utility model, can control the cooling tower exhaust noise effectively, and guarantee the ventilation effect of exhaust outlet.The utlity model has columniform muffler shell and conical center anechoic sheet simultaneously, handsome in appearance, cheap, have good environmental benefit and social benefit.
Description of drawings
Fig. 1 is the structural representation of the utility model exhaust silencer;
Fig. 2 is the vertical view of exhaust silencer shown in Figure 1;
Fig. 3 is the upward view of exhaust silencer shown in Figure 1;
Fig. 4 is the side sectional view of exhaust silencer shown in Figure 1;
Fig. 5 is the structural representation that the utility model exhaust silencer is connected in cooling tower.
The specific embodiment
In order more specifically to describe the utility model, the technical solution of the utility model is elaborated below in conjunction with the drawings and the specific embodiments.
Fig. 1 is the structural representation of the utility model exhaust silencer, and a kind of exhaust silencer that is used for cooling tower comprises columniform muffler shell 1, muffler body 2 and ventilating duct 3.Muffler shell 1 below is provided with ventilating duct 3, and the top of ventilating duct 3 is connected with edge, muffler shell 1 below by flange 11.As shown in Figure 5, the below of ventilating duct 3 is connected with the edge of the exhaust outlet 41 of cooling tower 4 tops by flange 31.After adding ventilating duct 3, make that the cross section of ventilation shaft is gradual change, thereby reduced the stream pressure loss.And by the flange connection, the dismounting maintenance is convenient.
Muffler body 2 is located at muffler shell 1 inside, it comprise with the coaxial center anechoic sheet 21 of muffler shell 1 and be located at center anechoic sheet 21 and muffler shell 1 between radial radiation be the anechoic sheet 22 of equidistantly arranging, center anechoic sheet 21 is conical, cone vertically downward, shown in Fig. 2,3.Fig. 2 is the vertical view of silencer shown in Figure 1, and Fig. 3 is the upward view of silencer shown in Figure 1.Because it is big that center circle taper anechoic sheet 21 becomes from bottom to top gradually, makes that the noise elimination channel cross-section also is gradual change, therefore widened the frequency range of eliminating the noise.
The metal pipe internal wall of muffler shell 1 is set up microperforated panel as deadener, and center anechoic sheet 21 and the anechoic sheet 22 inner microperforated panels that adopt are as deadener, so have moisture-resistance preferably.And, the quantity of anechoic sheet 22 and arrange and can require to adjust according to sound source characteristic and noise reduction, in the engineering practical application, more convenient effectively.
As shown in Figure 4, center circle taper anechoic sheet 21 cones install circular steel plate 23 additional above bottom surface (vertically upward) vertically downward, and this steel plate 23 prevents that rainwater from directly falling into center circle taper anechoic sheet 21 inside, so the water resistance of this silencer is better.
In addition, but muffler shell 1, muffler body 2 and ventilating duct 3 are detachable vertical lifting formula, have therefore made things convenient for the dismounting maintenance, when cooling tower 4 flow feature change, can adjust anechoic sheet 22 quickly and easily simultaneously.
Claims (8)
1. exhaust silencer that is used for cooling tower, comprise columniform muffler shell (1) and be located at its interior muffler body (2), described muffler body (2) comprise with the coaxial center anechoic sheet (21) of muffler shell (1) and be located at center anechoic sheet (21) and muffler shell (1) between radial radiation be the anechoic sheet (22) of equidistantly arranging, it is characterized in that: described center anechoic sheet (21) is for conical, and circular cone vertically downward.
2. exhaust silencer according to claim 1 is characterized in that: described muffler shell (1) below is provided with ventilating duct (3).
3. exhaust silencer according to claim 2 is characterized in that: described ventilating duct (3) two ends are connected with exhaust outlet (41) edge, cooling tower (4) top with muffler shell (1) edge respectively.
4. exhaust silencer according to claim 3 is characterized in that: described ventilating duct (3) is for detachable.
5. exhaust silencer according to claim 4 is characterized in that: adopt flange to be connected between described ventilating duct (3) and the muffler shell (1), the employing flange is connected between described ventilating duct (3) and the cooling tower (4).
6. exhaust silencer according to claim 1 is characterized in that: described center circle taper anechoic sheet (21) top is provided with circular steel plate (23).
7. exhaust silencer according to claim 1 is characterized in that: the inner-walls of duct of described muffler shell (1) is provided with microperforated panel.
8. exhaust silencer according to claim 1 is characterized in that: described center circle taper anechoic sheet (21) and anechoic sheet (22) inside are equipped with microperforated panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201433717U CN202048808U (en) | 2011-05-06 | 2011-05-06 | Exhaust silencer for cooling tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201433717U CN202048808U (en) | 2011-05-06 | 2011-05-06 | Exhaust silencer for cooling tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202048808U true CN202048808U (en) | 2011-11-23 |
Family
ID=44989115
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201433717U Expired - Fee Related CN202048808U (en) | 2011-05-06 | 2011-05-06 | Exhaust silencer for cooling tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202048808U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105179779A (en) * | 2014-05-01 | 2015-12-23 | 费希尔控制国际公司 | Bleed assembly and method for digital valve positioner |
-
2011
- 2011-05-06 CN CN2011201433717U patent/CN202048808U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105179779A (en) * | 2014-05-01 | 2015-12-23 | 费希尔控制国际公司 | Bleed assembly and method for digital valve positioner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111123 Termination date: 20120506 |