CN109520364A - The air discharge structure of cooling tower - Google Patents
The air discharge structure of cooling tower Download PDFInfo
- Publication number
- CN109520364A CN109520364A CN201811330944.XA CN201811330944A CN109520364A CN 109520364 A CN109520364 A CN 109520364A CN 201811330944 A CN201811330944 A CN 201811330944A CN 109520364 A CN109520364 A CN 109520364A
- Authority
- CN
- China
- Prior art keywords
- cooling tower
- duct
- air
- ventilating duct
- axis
- 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.)
- Pending
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 63
- 238000009434 installation Methods 0.000 claims abstract description 19
- 239000000463 material Substances 0.000 claims description 2
- 238000010521 absorption reaction Methods 0.000 claims 1
- 238000007664 blowing Methods 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 239000011358 absorbing material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 2
- 229920002430 Fibre-reinforced plastic Polymers 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000003712 anti-aging effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000011151 fibre-reinforced plastic Substances 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 238000005399 mechanical ventilation Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 235000015170 shellfish Nutrition 0.000 description 1
- 230000003584 silencer Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F25/00—Component parts of trickle coolers
- F28F25/10—Component parts of trickle coolers for feeding gas or vapour
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28C—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA COME INTO DIRECT CONTACT WITHOUT CHEMICAL INTERACTION
- F28C1/00—Direct-contact trickle coolers, e.g. cooling towers
- F28C1/10—Arrangements for suppressing noise
Abstract
The invention discloses a kind of air discharge structures of cooling tower, including being mounted on cooling tower tower top, and its axis is parallel to the air duct of cooling tower axis, to the blower of fan drum blowing, ventilating duct is housed in the air outlet cover of air duct, after ventilating duct is installed to air duct, the outlet of the ventilating duct is directed away from the side of installation cooling tower tower body, angle between the axis of the outlet of the ventilating duct and the axis of entrance is α, 0 α≤90 ° ° ≦, the setting of ventilating duct is so that the noise that can spread transmitting around originally is passed to specific direction, by the air-out direction for changing cooling tower, transmit the noise of cooling tower to the direction far from building, to achieve the purpose that the noise for reducing the building for installing cooling tower.
Description
Technical field
The present invention relates to a kind of cooling tower technical fields, and in particular to a kind of air discharge structure of cooling tower.
Background technique
Cooling tower (The cooling tower) is to use water as circulating coolant, absorbs heat dissipation from a system
Into atmosphere, to reduce the device of water temperature；It is to carry out cold and hot exchange after contacting using water with air flowing to generate steam that its is cold, is steamed
Vapour volatilization takes away heat and reaches the principles such as evaporative heat loss, convective heat transfer and radiant heat transfer to disperse in industrial or refrigeration air-conditioner and produce
Raw waste heat reduces the evaporating radiator of water temperature, and to guarantee the normal operation of system, device is generally tubbiness, and therefore named is cold
But tower.
Mechanical ventilation type cooling tower is applied very extensive in many domain class such as megastore, hotel, gas station at present, but
It is that cooling tower can generate very big noise during the work time, noise pollution strength of sound source generally can achieve 80dB (A) or more
It is even more big, influence the normal life of staff around and resident.As social is gradually improved, scientific continuous development,
Requirement of the people for locating living environment and working environment is also continuously improved therewith, especially increasingly to the requirement of noise
It is high.The noise source of conventional chilling tower is main are as follows: motor and the mechanical noise of blower rotation are spread out of from air outlet；Motor and leaching
The sound that the underwater sound comes from air intake surface outflow；The air pertormance noise that the high-speed flow of exhaust outlet generates；Motor and wind cabinet axis
Hold the mechanical noise generated after abrasion.
The method for reducing noise generally directed to the air power noise of air outlet are as follows: install air draft in air outlet of cooling tower
Silencer reduces noise frequently with sound insulation and sound absorbing member in the prior art to reduce influence of its noise to resident.It is existing
The air discharge structure that uses of cooling tower for aerodynamic noise is directly discharged from the air outlet at the top of cooling tower, aerodynamic noise is from outlet air
It after mouth discharge, can spread around, including spreading into the building of installation cooling tower side, increase making an uproar in building
Sound.Cooling tower industry urgent problem thus is had become to the control of cooling tower noise.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of air discharge structures of cooling tower, can reduce installation cooling tower
Building in noise.
The technical scheme adopted by the invention is that: the air discharge structure of cooling tower, including it is mounted on cooling tower tower top and its axis
Line is parallel to the air duct of cooling tower axis, and to the blower of fan drum blowing, ventilating duct, ventilating duct peace are housed in the air outlet cover of air duct
After being attached to air duct, the outlet of the ventilating duct is directed away from the side of installation cooling tower tower body, the axis of the outlet of the ventilating duct
Angle between the axis of entrance is α, and 0 α≤90 ° ° ≦, the setting of ventilating duct so that can spread making an uproar for transmitting around originally
Sound is transmitted to specific direction, by changing the air-out direction of cooling tower, passes the noise of cooling tower to the direction far from building
It passs, to achieve the purpose that the noise for reducing the building of installation cooling tower.
Further, the inner wall of ventilating duct has been placed equidistant with rib-like, reinforces the noise reduction capability of ventilating duct.
Further, the inner wall of ventilating duct is provided with sound-absorbing material, reinforces the noise reduction capability of ventilating duct.
Further, the ventilating duct is right-angle elbow pipe structure, after ventilating duct is installed to air duct, the outlet axis of right-angle elbow pipe
The axis angle α of line and air duct is 90 °, guarantees that the noise of cooling tower is transmitted to the direction of the building far from installation cooling tower.
Further, the ventilating duct is set with by the curve bend of two sections or more identical radian measures, and ventilating duct is installed to
After air duct, the outlet axes of one section of curve bend of the outlet end of ventilating duct and the axis angle α of air duct are 0 ° < α < 90 °, are protected
The noise for demonstrate,proving cooling tower is transmitted to the direction of the building far from installation cooling tower.
Further, the ventilating duct is straight tube structure, after ventilating duct is installed to air duct, the outlet axes and air duct of straight tube
Axis angle α be 0 °, guarantee that the noise of cooling tower is not spread around.
The beneficial effects of the present invention are: noise transmission direction is changed to separate by the direction of air outlet for changing ventilating duct
The direction of building is transmitted, to reduce the noise in the building of installation cooling tower.
Detailed description of the invention
Fig. 1 is existing cooling tower air discharge structure figure.
Fig. 2 be ventilating duct of the invention be straight tube structure when cooling tower air discharge structure figure.
Fig. 3 be ventilating duct of the invention be curve bend structure when cooling tower air discharge structure figure.
Fig. 4 be ventilating duct of the invention be right-angle elbow pipe structure when cooling tower air discharge structure figure.
In the figure, it is marked as 1- air duct, 2- ventilating duct, 3- blower, the curve bend of 2a- identical radian measure, α-ventilating duct go out
Angle between the axis of mouth and the axis of entrance.Arrow is used to indicate the direction of noise transmission in Fig. 1-4.
Specific embodiment
The following further describes the present invention with reference to the drawings.
As shown in Figure 2, Figure 3 and Figure 4, the air discharge structure of cooling tower of the invention, in the air duct 1 of existing cooling tower tower top
On be mounted with ventilating duct 2, in order to make from ventilating duct 2 come out noise far from installation cooling tower building, ventilating duct 2 is arranged
At having certain angle α, 0 α≤90 ° ° ≦ between the axis of its outlet and the axis of entrance, ventilating duct 2 generally uses glass
Steel, scientific name fibre reinforced plastics, feature high-strength light, relative density are good between 1.5~2.0, strong corrosion resistant
Anticorrosive material has preferable resistivity to the acid of big gas and water and general concentration, alkali, salt and a variety of oils and solvent, prolongs
The service life of long ventilating duct.In order to further extend the service life of ventilating duct, ventilating duct is being made in glass reinforced plastic by applicant
Before, antiultraviolet, anti-aging gel coating resin are coated on its surface.As shown in figure 4, the ventilating duct 2 can be right-angle elbow pipe
Structure, the outlet axes of right-angle elbow pipe and the axis angle α of air duct 1 are 90 °, as shown in Fig. 3, ventilating duct 2 or arc
Bend pipe structure is made of, the outlet axes of the curve bend of outermost end and the axis of air duct 1 the curve bend suit of different radians
Angle α is 0 ° < α < 90 °, guarantees that the noise of cooling tower is transmitted to the direction of the building far from installation cooling tower, as shown in Fig. 2,
The ventilating duct 2 can also be straight tube structure, and the outlet axes of straight tube and the axis angle α of air duct 1 are 0 °, guarantee cooling tower
Noise is not spread around, and the diameter of the entrance of ventilating duct 2 is identical with the diameter of air duct 1.Ventilating duct 2 is installed on air duct 1
When, when ventilating duct 2 is right-angle elbow pipe structure or curve bend structure, the outlet of ventilating duct 2 is directed away from installation cooling tower
The side of body, when ventilating duct 2 is straight tube structure, ventilating duct 2 is parallel to the installation of 1 axis of air duct, so that reaching reduces in building
The purpose of noise.
Ventilating duct 2 is bolted with air duct 1, ventilating duct 2 by multistage identical radian measure curve bend 2a suit and
At generally using radian for 45 ° of curve bend 2a.When specific installation, first several sections of curve bends are connected with, curved bend
The quantity of pipe adjusts according to specific needs, and the curve bend of general four sections or eight sections identical radian measures connects to form curve bend,
The angle α for guaranteeing the axis of two curve bends of head end and end after connecting is 0 ° < α < 90 °, in the arc that connection is completed
Sound-absorbing material is arranged in the inner wall of bend pipe, and then the curve bend connected is installed on air duct 1 again, head end curved bend when installation
Pipe is connected on air duct 1, and the outlet of end curve bend is directed away from the side of installation cooling tower tower body, and guarantees ventilating duct
The outlet axes of outlet end, that is, end curve bend and the axis angle α of air duct are 0 ° < α < 90 °.
In order to enhance the anti-acoustic capability of ventilating duct 2, it is placed equidistant with rib-like in the inner wall of ventilating duct 2, or leading
The inner wall of air duct 2 is provided with sound-absorbing material, more solid than general sponge such as sound-absorbing sponge, durable, and blower fan of cooling tower can be effectively reduced
Mechanicalness noise.
Before ventilating duct is not used in air duct, from the noise transmission direction that cooling tower air duct comes out by shown in arrow in Fig. 1
The noise transmission angle of direction transmitting, ventilating duct outlet is larger, and the noise for causing to enter in the building of installation cooling tower is larger,
And the solution of the present invention is used, after installing ventilating duct on air duct, the air duct structure as shown in using Fig. 2, then ventilating duct goes out
The noise transmission angle of mouth reduces when being comparably using ventilating duct, such as uses air duct structure shown in Fig. 3, then ventilating duct goes out
Mouthful noise transmitted to the direction of the building far from installation cooling tower, such as use air duct structure shown in Fig. 4, then ventilating duct
The noise transmission direction of outlet and the direction of the building far from installation cooling tower are completely opposite.
After guiding air duct, noise measuring method is to cooling tower required standard in standard GB/T7190.1-2008
Test point carries out noise test, and if ventilating duct uses straight tube structure, noise can reduce 2 to 3 decibels, if matching variable-frequency electric
Machine, slows down rotation speed of fan, and noise can reduce by 4 to 5 decibels.If ventilating duct uses curve bend structure, noise can reduce 3 to 4 points
Shellfish slows down rotation speed of fan if matching variable-frequency motor, and noise can reduce by 5 to 6 decibels.
Claims (6)
1. the air discharge structure of cooling tower, it is characterised in that: including being mounted on cooling tower tower top and its axis is parallel to cooling tower axis
The air duct (1) of line, the blower (3) blown to air duct (1) are equipped with ventilating duct (2) in the air outlet cover of air duct (1), ventilating duct peace
After being attached to air duct, the outlet of the ventilating duct (2) is directed away from the side of installation cooling tower tower body, the outlet of the ventilating duct (2)
Axis and entrance axis between angle be α, 0 α≤90 ° ° ≦.
2. the air discharge structure of cooling tower as described in claim 1, it is characterised in that: the inner wall of ventilating duct (2) has been placed equidistant with
Rib-like.
3. the air discharge structure of cooling tower as described in claim 1, it is characterised in that: the inner wall of ventilating duct (2) is provided with sound absorption
Material.
4. the air discharge structure of cooling tower as claimed in claim 1,2 or 3, it is characterised in that: the ventilating duct (2) is quarter bend
Pipe structure, after ventilating duct is installed to air duct, the outlet axes of right-angle elbow pipe and the axis angle α of air duct (1) are 90 °.
5. the air discharge structure of cooling tower as claimed in claim 1,2 or 3, it is characterised in that: the ventilating duct (2) by two sections with
The curve bend of upper identical radian measure is set with, after ventilating duct is installed to air duct, one section of curve bend of the outlet end of ventilating duct
Outlet axes and air duct (1) axis angle α be 0 ° < α < 90 °.
6. the air discharge structure of cooling tower as claimed in claim 1,2 or 3, it is characterised in that: the ventilating duct (2) is straight tube knot
Structure, after ventilating duct is installed to air duct, the outlet axes of straight tube and the axis angle α of air duct (1) are 0 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811330944.XA CN109520364A (en) | 2018-11-09 | 2018-11-09 | The air discharge structure of cooling tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811330944.XA CN109520364A (en) | 2018-11-09 | 2018-11-09 | The air discharge structure of cooling tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109520364A true CN109520364A (en) | 2019-03-26 |
Family
ID=65774415
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811330944.XA Pending CN109520364A (en) | 2018-11-09 | 2018-11-09 | The air discharge structure of cooling tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109520364A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01114696A (en) * | 1987-10-27 | 1989-05-08 | Mitsubishi Plastics Ind Ltd | Silencing duct for cooling tower |
| JPH05196374A (en) * | 1992-01-20 | 1993-08-06 | Mitsubishi Heavy Ind Ltd | Noise reduction type cooling tower |
| CN2835936Y (en) * | 2005-09-29 | 2006-11-08 | 浙江金菱制冷工程有限公司 | Air duct dedicated for cooling tower |
| CN201311202Y (en) * | 2008-11-27 | 2009-09-16 | 管印贵 | Silencing device of cooling tower |
| CN203240951U (en) * | 2012-11-20 | 2013-10-16 | 无锡海洋冷却设备仪征有限公司 | Circular cooling tower body |
| CN104197741A (en) * | 2014-09-10 | 2014-12-10 | 诸暨暨诺环境设备有限公司 | Cross flow type cooling tower for central air conditioner |
| CN205138256U (en) * | 2015-10-30 | 2016-04-06 | 安徽天哲环保暖通设计工程有限公司 | Cooling tower noise reduction system |
| CN105758251A (en) * | 2014-12-20 | 2016-07-13 | 无锡海洋冷却设备仪征有限公司 | Round cooling tower |
| CN207674995U (en) * | 2018-01-01 | 2018-07-31 | 厦门市杏林双全玻璃钢有限公司 | Cooling tower noise reducing apparatus |
| CN207963542U (en) * | 2018-03-22 | 2018-10-12 | 重庆市飞涛冷却设备有限公司 | A kind of cooling tower with denoising device |
-
2018
- 2018-11-09 CN CN201811330944.XA patent/CN109520364A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01114696A (en) * | 1987-10-27 | 1989-05-08 | Mitsubishi Plastics Ind Ltd | Silencing duct for cooling tower |
| JPH05196374A (en) * | 1992-01-20 | 1993-08-06 | Mitsubishi Heavy Ind Ltd | Noise reduction type cooling tower |
| CN2835936Y (en) * | 2005-09-29 | 2006-11-08 | 浙江金菱制冷工程有限公司 | Air duct dedicated for cooling tower |
| CN201311202Y (en) * | 2008-11-27 | 2009-09-16 | 管印贵 | Silencing device of cooling tower |
| CN203240951U (en) * | 2012-11-20 | 2013-10-16 | 无锡海洋冷却设备仪征有限公司 | Circular cooling tower body |
| CN104197741A (en) * | 2014-09-10 | 2014-12-10 | 诸暨暨诺环境设备有限公司 | Cross flow type cooling tower for central air conditioner |
| CN105758251A (en) * | 2014-12-20 | 2016-07-13 | 无锡海洋冷却设备仪征有限公司 | Round cooling tower |
| CN205138256U (en) * | 2015-10-30 | 2016-04-06 | 安徽天哲环保暖通设计工程有限公司 | Cooling tower noise reduction system |
| CN207674995U (en) * | 2018-01-01 | 2018-07-31 | 厦门市杏林双全玻璃钢有限公司 | Cooling tower noise reducing apparatus |
| CN207963542U (en) * | 2018-03-22 | 2018-10-12 | 重庆市飞涛冷却设备有限公司 | A kind of cooling tower with denoising device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190326 |
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| RJ01 | Rejection of invention patent application after publication |