CN110853611A - Noise reduction device for tail of fog gun - Google Patents
Noise reduction device for tail of fog gun Download PDFInfo
- Publication number
- CN110853611A CN110853611A CN201911153991.6A CN201911153991A CN110853611A CN 110853611 A CN110853611 A CN 110853611A CN 201911153991 A CN201911153991 A CN 201911153991A CN 110853611 A CN110853611 A CN 110853611A
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- Prior art keywords
- cylinder
- noise reduction
- hole
- supporting cylinder
- fog gun
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- 229920000742 Cotton Polymers 0.000 claims abstract description 21
- 238000010521 absorption reaction Methods 0.000 claims abstract description 20
- 239000004744 fabric Substances 0.000 claims abstract description 6
- 230000002209 hydrophobic effect Effects 0.000 claims abstract description 6
- 239000011148 porous material Substances 0.000 claims description 18
- 238000013016 damping Methods 0.000 claims description 7
- 239000003973 paint Substances 0.000 claims description 6
- 230000000694 effects Effects 0.000 abstract description 16
- 238000009423 ventilation Methods 0.000 abstract description 10
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 239000006096 absorbing agent Substances 0.000 description 4
- 239000000428 dust Substances 0.000 description 4
- 239000002245 particle Substances 0.000 description 3
- 230000003584 silencer Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000011358 absorbing material Substances 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 239000011359 shock absorbing material Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
Images
Classifications
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
- B01D47/06—Spray cleaning
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/162—Selection of materials
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Abstract
A fog gun tail noise reduction device belongs to the field of environmental protection and comprises a support cylinder, sound absorption cotton, a hole cylinder and a noise reduction body; the hole cylinder is a horn-shaped plate, small holes are uniformly distributed in the surface of the hole cylinder, the hole cylinder is arranged on the inner side of the horn-shaped supporting cylinder and is fixedly connected with the supporting cylinder, the hole cylinder is coaxial with the supporting cylinder, sound absorption cotton and hydrophobic cloth are filled between the hole cylinder and the supporting cylinder, and 3 rows of noise reduction bodies are arranged in the supporting cylinder and are welded with the inner wall of the supporting cylinder. The invention has good noise reduction effect and can ensure ventilation condition.
Description
Technical Field
The invention belongs to the field of environmental protection, and particularly relates to a noise reduction device for a tail of a fog gun.
Background
With the acceleration of the urbanization process in China, all industries in China also get rapid development, however, in all links of industrial chains such as the whole building industry, the coal industry, the urban construction, the electric power industry and the like, a lot of construction and use processes have great influence on urban air pollution, if the weather is dry and slightly windy, dust easily flies, and solid particles are generated to the environment, so that great influence is caused.
Aiming at dust and haze, the fog gun can be used for treatment, liquid fog dust fall can be carried out in haze weather, the particle concentration in desalted air can be decomposed, polluted particles, dust and the like in the air can be effectively decomposed, and the haze can be effectively relieved.
The disclosed various fog guns mainly have the range related to the power of a power fan, the higher the power is, the farther the fog gun is shot, the larger the noise generated correspondingly, generally, the fog guns with the range more than 50 meters are, the generated noise seriously affects a factory area and the surrounding environment, particularly, the fog guns have the use working condition with the requirement on the range more than 80 meters, the noise value can reach 95-100 decibels, and the fog guns greatly affect nearby residents. Because of the characteristics and the use limitations of the equipment, the tail part and the side surface are generally adopted to reduce noise.
CN201620991279.9 a low noise penetrates fog machine utility model inner wall layer adopts recess and boss structure, can absorb the vibrations when the fan moves, and the noise reduction, the sound insulation material in the outer wall layer outside can prevent the noise outwards to propagate, and dryer afterbody inboard installation puigging is through the puigging and the round hole on it, and the noise suppression is propagated. The noise reduction mode has good ventilation effect, but the noise reduction effect is about 5 decibels, the noise reduction effect is poor, the noise reduction effect belongs to resistive noise reduction, the effect is realized on medium-high frequency noise, the effect on medium-low frequency noise is poor, and the use can not be met for a large-range fog gun.
CN201820832884.0 a fog gun silencer, which comprises a tail ventilation silencer, a cylinder sound absorbing material, a cylinder sound insulating and damping material, and a cylinder outer plate, where the tail ventilation silencer is arranged in a part with a power structure, such as a fan, a motor, etc.; the cylinder sound absorption material is tightly attached to the cylinder; the sound absorbing material is hugged closely to barrel sound insulation shock-absorbing material, and the barrel planking parcel is in the outside this kind of mode of making an uproar also is the resistance to rain and falls and makes an uproar, has the effect to medium and high frequency noise, and the noise reduction effect can reach 10 decibels, but the matrix of afterbody ventilation noise elimination strip sets up the interval and has decided the ventilation effect, and it is big to set up the interval, and the effect is poor, and the interval is little, and the noise reduction effect can reach 10 decibels, but influences the ventilation, influences the fog distance then, influences rated.
The novel fog gun noise reduction device is provided for solving the problems, the impedance is adopted for combination, the noise reduction effect is good, the maximum noise reduction effect can reach 20 decibels, the ventilation condition can be further guaranteed, and the requirement of a use place is met.
Disclosure of Invention
The invention provides a noise reduction device at the tail of a fog gun, which has a good noise reduction effect and can ensure ventilation.
A fog gun tail noise reduction device comprises a support cylinder, sound absorption cotton, a hole cylinder and a noise reduction body; the hole cylinder is a horn-shaped plate, small holes are uniformly distributed in the surface of the hole cylinder, the hole cylinder is arranged on the inner side of the horn-shaped supporting cylinder and is fixedly connected with the supporting cylinder, the hole cylinder is coaxial with the supporting cylinder, sound absorption cotton and hydrophobic cloth are filled between the hole cylinder and the supporting cylinder, and 3 rows of noise reduction bodies are arranged in the supporting cylinder and are welded with the inner wall of the supporting cylinder. The hydrophobic cloth wraps the sound absorption cotton.
The first row of noise reduction bodies and the second row of noise reduction bodies are staggered, and the third row of noise reduction bodies and the second row of noise reduction bodies are staggered;
a layer of damping paint is coated on the inner wall of the supporting cylinder; the flange is connected with one end with the small diameter of the supporting cylinder into a whole to be used as a connecting part with the fog gun.
The hole cylinder is bent into a cone cylinder with one thick end and the other thin end by adopting an aluminum plate with the thickness of 1.5mm, and the hole diameter of the hole is 6 mm. The diameter of one end of the hole cylinder is 800mm, and the diameter of the other end of the hole cylinder is 600 mm.
The supporting cylinder is a conical cylinder made of a 4mm thin steel plate through rolling, the diameter of one end of the supporting cylinder is 800mm, and the diameter of the other end of the supporting cylinder is 1000 mmm.
The thickness of the damping paint coating is 10mm, the sound absorption cotton is glass cotton, the bulk weight is 48kg/m, the main sound absorber is arranged on the barrel wall, and the main sound absorber is arranged between the support barrel and the hole barrel;
the noise reduction body consists of a conical cylinder, a pore plate with uniformly distributed holes and sound absorption cotton, the conical cylinder and the pore plate are welded into a whole, and the aperture of the pore plate is 6 mm; sound absorption cotton is filled between the conical cylinder and the pore plate.
The noise reduction body can reduce air inlet resistance and enlarge noise reduction contact surface. The invention has good noise reduction effect, can reduce the noise to 20 decibels and can also ensure ventilation.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a side view of FIG. 1;
FIG. 3 is a conical noise reducing body of the present invention;
in the figure, 1-pore plate, 2-sound absorption cotton, 3-conical cylinder, 21-flange, 22-supporting cylinder, 24-pore cylinder, 25-noise reduction body and 26-damping paint.
Detailed Description
As shown in fig. 1 and 2, the fog gun tail noise reduction device comprises a support cylinder 22, sound absorption cotton 2, a hole cylinder 24 and a noise reduction body 25; the hole cylinder is a horn-shaped pore plate, small holes are uniformly distributed on the surface of the hole cylinder, the hole cylinder 24 is arranged on the inner side of the horn-shaped supporting cylinder and is fixedly connected with the supporting cylinder, the hole cylinder 24 is coaxial with the supporting cylinder 22, sound absorption cotton 2 and hydrophobic cloth are filled between the hole cylinder 24 and the supporting cylinder 22, and 3 rows of noise reduction bodies 25 are arranged in the supporting cylinder 22 and are welded with the inner wall of the supporting cylinder. The hydrophobic cloth wraps the acoustic absorption cotton 2.
The first row of noise reducing bodies 25 is staggered with the second row of noise reducing bodies, and the third row of noise reducing bodies is staggered with the second row of noise reducing bodies;
a layer of damping paint 26 is coated on the inner wall of the supporting cylinder; the flange 21 is integrally connected to the small-diameter end of the support cylinder 22 as a connecting member with the fog gun.
The hole cylinder is bent into a cone cylinder with one thick end and the other thin end by adopting an aluminum plate with the thickness of 1.5mm, and the aperture of the opening is 6 mm. The diameter of one end of the hole cylinder is 800mm, and the diameter of the other end of the hole cylinder is 600 mm.
The supporting cylinder is a conical cylinder made of a 4mm thin steel plate through rolling, the diameter of one end of the supporting cylinder is 800mm, and the diameter of the other end of the supporting cylinder is 1000 mmm.
The thickness of the damping paint coating is 10mm, the sound absorption cotton is glass cotton, the bulk weight is 48kg/m, the main sound absorber is arranged on the barrel wall, and the main sound absorber is arranged between the support barrel and the pore plate; as shown in fig. 3, the noise reduction body 25 is composed of a conical cylinder 3, a pore plate 1 with uniformly distributed pores and sound absorption cotton 2, the conical cylinder and the pore plate are welded into a whole, and the pore diameter of the pores is 6 mm; sound absorption cotton is filled between the conical cylinder and the pore plate.
Claims (5)
1. A fog gun tail noise reduction device is characterized by comprising a support cylinder, sound absorption cotton, a hole cylinder and a noise reduction body; the hole cylinder is horn-shaped, holes with the aperture of 6mm are uniformly distributed on the surface of the hole cylinder, the hole cylinder is arranged on the inner side of the horn-shaped supporting cylinder and is fixedly connected with the supporting cylinder, the hole cylinder is coaxial with the supporting cylinder, sound absorption cotton and hydrophobic cloth are filled between the hole cylinder and the supporting cylinder, and 3 rows of noise reduction bodies are arranged in the supporting cylinder and are welded with the inner wall of the supporting cylinder.
2. The fog gun tail noise reduction device according to claim 1, wherein the first row of noise reduction bodies and the second row of noise reduction bodies are staggered, and the third row of noise reduction bodies and the second row of noise reduction bodies are staggered;
the fog gun tail noise reduction device according to claim 1, wherein the inner wall of the supporting cylinder is coated with damping paint with the thickness of 10 mm.
3. The fog gun tail noise reduction device according to claim 1, wherein the diameter of one end of the hole cylinder is 800mm, and the diameter of the other end of the hole cylinder is 600 mm.
4. The fog gun tail noise reduction device according to claim 1, wherein the diameter of one end of the support cylinder is 800mm, and the diameter of the other end of the support cylinder is 1000 mmm.
5. The fog gun tail noise reduction device according to claim 1, wherein the noise reduction body comprises a conical cylinder, a pore plate with uniformly distributed pores and sound absorption cotton, and the conical cylinder and the pore plate are welded into a whole; sound absorption cotton is filled between the conical cylinder and the pore plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911153991.6A CN110853611A (en) | 2019-11-22 | 2019-11-22 | Noise reduction device for tail of fog gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911153991.6A CN110853611A (en) | 2019-11-22 | 2019-11-22 | Noise reduction device for tail of fog gun |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110853611A true CN110853611A (en) | 2020-02-28 |
Family
ID=69603658
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911153991.6A Pending CN110853611A (en) | 2019-11-22 | 2019-11-22 | Noise reduction device for tail of fog gun |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110853611A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201347784Y (en) * | 2008-12-18 | 2009-11-18 | 四川东杨正茂机电设备工程有限公司 | Silencer with acoustic wedge |
| CN103383138A (en) * | 2012-05-04 | 2013-11-06 | 赵阿萌 | Sound absorbing wedge muffler |
| CN203394890U (en) * | 2013-08-15 | 2014-01-15 | 厦门嘉达声学技术有限公司 | Composite chimney muffler |
| CN204194199U (en) * | 2014-09-25 | 2015-03-11 | 上海腾邦环境科技有限公司 | A kind of fog gun and air-duct apparatus thereof |
| CN106205587A (en) * | 2016-08-19 | 2016-12-07 | 贵州大学 | A kind of sound absorption structure of photosensitive resin material |
| CN208111065U (en) * | 2018-03-21 | 2018-11-16 | 北京舒文环保科技有限公司 | A kind of silencer |
| CN208203386U (en) * | 2018-05-23 | 2018-12-07 | 庄志坚 | A kind of Multifunctional motor-cycle vehicle exhaust pipe |
| CN209469628U (en) * | 2018-12-28 | 2019-10-08 | 秦皇岛北方管业有限公司 | A kind of noise reduction fog gun |
| CN211578362U (en) * | 2019-11-22 | 2020-09-25 | 山西尚风科技股份有限公司 | Noise reduction device for tail of fog gun |
-
2019
- 2019-11-22 CN CN201911153991.6A patent/CN110853611A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201347784Y (en) * | 2008-12-18 | 2009-11-18 | 四川东杨正茂机电设备工程有限公司 | Silencer with acoustic wedge |
| CN103383138A (en) * | 2012-05-04 | 2013-11-06 | 赵阿萌 | Sound absorbing wedge muffler |
| CN203394890U (en) * | 2013-08-15 | 2014-01-15 | 厦门嘉达声学技术有限公司 | Composite chimney muffler |
| CN204194199U (en) * | 2014-09-25 | 2015-03-11 | 上海腾邦环境科技有限公司 | A kind of fog gun and air-duct apparatus thereof |
| CN106205587A (en) * | 2016-08-19 | 2016-12-07 | 贵州大学 | A kind of sound absorption structure of photosensitive resin material |
| CN208111065U (en) * | 2018-03-21 | 2018-11-16 | 北京舒文环保科技有限公司 | A kind of silencer |
| CN208203386U (en) * | 2018-05-23 | 2018-12-07 | 庄志坚 | A kind of Multifunctional motor-cycle vehicle exhaust pipe |
| CN209469628U (en) * | 2018-12-28 | 2019-10-08 | 秦皇岛北方管业有限公司 | A kind of noise reduction fog gun |
| CN211578362U (en) * | 2019-11-22 | 2020-09-25 | 山西尚风科技股份有限公司 | Noise reduction device for tail of fog gun |
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Application publication date: 20200228 |
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