CN207690491U - A kind of novel array type silencer - Google Patents
A kind of novel array type silencer Download PDFInfo
- Publication number
- CN207690491U CN207690491U CN201721681658.9U CN201721681658U CN207690491U CN 207690491 U CN207690491 U CN 207690491U CN 201721681658 U CN201721681658 U CN 201721681658U CN 207690491 U CN207690491 U CN 207690491U
- Authority
- CN
- China
- Prior art keywords
- noise elimination
- elimination column
- shell
- array type
- type silencer
- 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.)
- Active
Links
- 230000003584 silencer Effects 0.000 title claims abstract description 32
- 230000008030 elimination Effects 0.000 claims abstract description 89
- 238000003379 elimination reaction Methods 0.000 claims abstract description 89
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 48
- 230000002745 absorbent Effects 0.000 claims abstract description 26
- 239000002250 absorbent Substances 0.000 claims abstract description 26
- 239000011521 glass Substances 0.000 claims description 10
- 229920002635 polyurethane Polymers 0.000 claims description 10
- 239000004814 polyurethane Substances 0.000 claims description 10
- 239000011491 glass wool Substances 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 8
- 238000000465 moulding Methods 0.000 claims description 8
- 239000002023 wood Substances 0.000 claims description 8
- 238000005553 drilling Methods 0.000 claims description 7
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 7
- 239000004800 polyvinyl chloride Substances 0.000 claims description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 150000001875 compounds Chemical class 0.000 claims description 5
- 239000004744 fabric Substances 0.000 claims description 5
- 230000002209 hydrophobic effect Effects 0.000 claims description 5
- 229920001587 Wood-plastic composite Polymers 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 239000011155 wood-plastic composite Substances 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims description 2
- 238000005260 corrosion Methods 0.000 abstract description 9
- 150000003839 salts Chemical class 0.000 abstract description 9
- 230000007797 corrosion Effects 0.000 abstract description 7
- 239000007921 spray Substances 0.000 abstract description 4
- 239000002253 acid Substances 0.000 abstract description 3
- 230000002411 adverse Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 6
- 238000009423 ventilation Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000011358 absorbing material Substances 0.000 description 2
- 230000004520 agglutination Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 239000003365 glass fiber Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 206010022998 Irritability Diseases 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003518 caustics Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000006056 electrooxidation reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Exhaust Silencers (AREA)
Abstract
The utility model discloses a kind of novel array type silencers, the novel array type silencer includes suppressor case and multiple noise elimination columns, the opening at the suppressor case both ends is parallel to be equipped with more supporting rods, the multiple noise elimination column, which is arranged in array, to be arranged inside suppressor case, noise elimination column both ends are fixed on supporting rod, the noise elimination column includes noise elimination column shell, absorbent treatment and waterproof layer, the noise elimination column shell both ends are blocked by fair water cone, the fair water cone is connected to supporting rod, the absorbent treatment is filled in noise elimination column enclosure interior, the waterproof layer is wrapped in outside absorbent treatment.The array type silencer of the utility model has the performances such as good damp proof, moisture-proof, acid/alkali-corrosion-resistant, high temperature resistant, salt spray resistance, can be preferably suitable for the noise abatement engineering under the adverse circumstances such as high humidity, high salt fog, high corrosion.
Description
Technical field
The utility model is related to silencer technical fields, and in particular to a kind of novel array type silencer.
Background technology
As economic fast-developing noise pollution increasingly becomes problem of people's attention, people live in noise for a long time
The middle problem that can lead to the harm health such as agitation, irritability, stress.It is general in the engineerings such as tunnel and large-scale mechanical force cooling column
Powerful wind turbine can be installed, whens these fan operations will produce a large amount of noise, seriously affect worker and neighbouring resident
Normal life, silencer are a kind of equipment that can effectively reduce noise, would generally be arranged in the larger ventilating system of noise and disappear
Sound device reduces the influence of noise of ventilation equipment, but the setting of silencer can also be such that ventilation resistance increases, and is imitated so as to cause ventilation
Fruit is bad, and array type silencer is allowed to by multiple designs along airflow direction muffling unit square formation disposed in parallel
Smaller ventilation resistance is had both while effectively reducing influence of noise, therefore is widely used.
And the improvement of existing array type silencer focuses mostly in the optimization to its structure when conventional environment is applied
And the raising of sound absorbing performance, and few work can be concerned about silencer in severe rings such as some high humiditys, high salt fog, high corrosions
Application under border, such as the power plant in coastal area or cooling tower, existing array type silencer is applied to these high humiditys, height
Salt fog, high corrosion adverse circumstances under when will appear chemical attack and electrochemical corrosion with being difficult to avoid that so that silencer makes
Declined with the service life, and also inadequate to the protection of sound-absorbing material, steam, which easily enters in sound-absorbing material, to be condensed so that sound absorption material
The bulk multi-hole structure of material is blocked to lose sound absorbing performance.
Utility model content
The purpose of this utility model is to provide a kind of novel array type silencers, eliminate the noise to solve existing array
Device can not adapt to high humidity, high salt fog, high corrosion environment cause silencer sound absorbing performance decline the problem of.
To achieve the above object, it includes silencer shell that the technical solution of the utility model, which is the novel array type silencer,
Body and multiple noise elimination columns, the opening at the suppressor case both ends is parallel to be equipped with more supporting rods, the multiple noise elimination column
It is arranged in array and is arranged inside suppressor case, noise elimination column both ends are fixed on supporting rod, and the noise elimination column includes disappearing
Sound column shell, absorbent treatment and waterproof layer, the noise elimination column shell both ends are blocked by fair water cone, and the fair water cone is connected to branch
Strut, the absorbent treatment are filled in noise elimination column enclosure interior, and the waterproof layer is wrapped in outside absorbent treatment.
Preferably, it is equipped with orifice plate on the suppressor case inner wall, is opened up on the orifice plate and on noise elimination column shell
There are multiple holes, the multiple hole is with trigonometric expression array or rectangular array arrangement, the arrangement form of hole on the orifice plate
It is identical as the arrangement form of hole on noise elimination column shell.
Preferably, one end of the fair water cone outwardly convex is water conservancy diversion end, and the fair water cone other end is fixing end, described
Water conservancy diversion end is equipped with drilling, and the water conservancy diversion end passes through drilling to be fixedly connected with supporting rod by fixing bolt, the fixing end to
Interior extension forms overlap joint with noise elimination column shell and is fixedly connected with merga pass screw.
Preferably, the fair water cone is arc-shaped or prismatic table shape, the fair water cone are that polyurethane fair water cone or wood moulding are multiple
Condensation material fair water cone or stainless steel diversion cap.
Preferably, the section of the noise elimination column shell is round or rectangle, and the noise elimination column thickness of shell is 2-15mm, institute
It is 100-500mm to state noise elimination column housing section length and cross-sectional width when noise elimination column housing section is rectangle, the noise elimination column
Noise elimination column housing section a diameter of 100-500mm when housing section is round, the noise elimination column shell be polyvinyl chloride shell or
Compound polyurethane material shell either glass box hat or wood moulding shell.
Preferably, the absorbent treatment is the centrifugal glass wool layer that thickness is 30-150mm, the appearance of the centrifugal glass wool layer
Weight is 30-70kg/m3, the waterproof layer is alkali-free hydrophobic glass silk layer of cloth.
Preferably, the noise elimination column hull outside is laid with Weather-proof film.
Preferably, it is laid with decorating film outside the suppressor case.
Preferably, the suppressor case is polyvinyl chloride shell or compound polyurethane material shell or glass steel shell
Or wood moulding shell, the suppressor case thickness are 30-200mm.
Preferably, the noise elimination column length is 500-3000mm, and the spacing between the two neighboring noise elimination column is 50-
500mm。
The utility model has the following advantages that：1, tightly it is enclosed with one outside the array type silencer absorbent treatment of the utility model
Layer waterproof layer, waterproof layer are alkali-free hydrophobic glass silk cloth, and can effectively play prevents moisture, steam from entering in wrapped up absorbent treatment
The effect in portion reaches preferable protection to absorbent treatment；2, suppressor case and noise elimination column shell are polyvinyl chloride shell or gather
Urethane composite material casing either glass steel shell or wood moulding shell have good acid/alkali-corrosion-resistant, high temperature resistant, salt spray resistance
Etc. performances, the noise abatement engineering that can be preferably suitable under the adverse circumstances such as high humidity, high salt fog, high corrosion；3 have simultaneously
Good frequency band acoustic attenuation performance stable structure, sturdy and durable, reliable in quality, good appearance, is convenient for safeguarding, and may be implemented to flow
Waterline produces, and substantially increases production efficiency, reduces production cost, product can also be customized, be had wide range of applications.
Description of the drawings
Fig. 1 is a kind of novel array type silencer structural schematic diagram of the utility model embodiment 1.
Fig. 2 is the structural schematic diagram of the noise elimination column of the utility model embodiment 1.
Fig. 3 is the decomposition texture schematic diagram of the noise elimination column of the utility model embodiment 1.
Fig. 4 is the cross-sectional view of the noise elimination column of the utility model embodiment 1.
Fig. 5 is the hole trigonometric expression array arrangement schematic diagram of the utility model embodiment 1.
Fig. 6 is the hole rectangular array arrangement schematic diagram of the utility model embodiment 1.
Fig. 7 is the structural schematic diagram of the noise elimination column of the utility model embodiment 2.
Fig. 8 is the cross-sectional view of the noise elimination column of the utility model embodiment 2.
Specific implementation mode
The following examples illustrate the utility model, but is not intended to limit the scope of the present invention.
Embodiment 1
As shown in Figure 1, a kind of novel array type silencer proposed in the present embodiment includes suppressor case 1 and multiple disappears
Sound column 2,1 outside of suppressor case can lay decorating film and be decorated, and 1 thickness of suppressor case is 30-200mm, silencer shell
The opening at 1 both ends of body is parallel to be equipped with more supporting rods 3, and multiple noise elimination columns 2, which are arranged in array, to be arranged in suppressor case 1
Portion, 2 both ends of noise elimination column are fixed on supporting rod 3, and the spacing between two neighboring noise elimination column 2 is 50-500mm.Such as Fig. 2,3 and 4,
Noise elimination column 2 includes noise elimination column shell 21, absorbent treatment 22 and waterproof layer 23, the rectangular cross-section of noise elimination column shell 2, noise elimination column shell
21 both ends of body are blocked by fair water cone 24, and fair water cone 24 is polyurethane fair water cone either wood plastic composite fair water cone or stainless
Steel fair water cone, fair water cone 24 are in prismatic table shape, can effectively reduce gas-flow resistance, one end of 241 outwardly convex of fair water cone is water conservancy diversion end
241, the fair water cone other end is fixing end 242, and water conservancy diversion end 241 is equipped with drilling, and water conservancy diversion end 241 passes through drilling by fixing bolt
It is fixedly connected with supporting rod 3, fixing end 242, which extends internally to form overlap joint with noise elimination column shell 21 and fix with merga pass screw, to be connected
It connects.It is equipped with perforated plate on 1 inner wall of suppressor case, multiple holes is offered on perforated plate and on noise elimination column shell 21, it is more
A hole is arranged with trigonometric expression array (such as Fig. 5) or rectangular array (such as Fig. 6), the arrangement form of hole and noise elimination column on orifice plate
The arrangement form of hole is identical on shell 2, aperture 3-10mm, percent opening 15-40%.Suppressor case 1 and noise elimination column shell 21
It is polyvinyl chloride shell or compound polyurethane material shell either glass steel shell or wood moulding shell, there is good acid-proof
The performances such as caustic corrosion, high temperature resistant, salt spray resistance, 21 thickness of noise elimination column shell are 2-15mm, and 2 length of noise elimination column is 500-3000mm,
The cross-sectional length and cross-sectional width of noise elimination column shell 21 are 100-500mm, 21 outside of noise elimination column shell can lay Weather-proof film with
Improve the service life of noise elimination column 2.
Absorbent treatment 22 is filled in inside noise elimination column shell 21, and absorbent treatment 22 is the centrifugally glass-wool that thickness is 30-150mm
The unit weight of layer, centrifugal glass wool layer is 30-70kg/m3, waterproof layer 23 is wrapped in outside absorbent treatment, and waterproof layer 23 is alkali-free hydrophobic
Glass fiber layer of cloth can effectively play the effect for preventing moisture, steam from entering inside wrapped up absorbent treatment 22, be reached to absorbent treatment 22
To preferable protection, noise elimination column 2 can open up osculum so that the water of agglutination drippage is discharged in lowest position when in use.
Embodiment 2
A kind of novel array type silencer proposed in the present embodiment can refer to Fig. 1, same including suppressor case 1 and more
A noise elimination column 2,1 outside of suppressor case can lay decorating film and be decorated, and 1 thickness of suppressor case is 30-200mm, is eliminated the noise
The opening at 1 both ends of device shell is equipped with more supporting rods 3, and multiple noise elimination columns 2, which are arranged in array, to be arranged in suppressor case 1
Portion, 2 both ends of noise elimination column are fixed on supporting rod 3, and the spacing between two neighboring noise elimination column 2 is 50-500mm.Noise elimination column 2 includes
Noise elimination column shell 21, absorbent treatment 22 and waterproof layer 23, as shown in FIG. 7 and 8, the section of noise elimination column shell 2 is circle, noise elimination column
1 both ends of shell are blocked by fair water cone 24, and fair water cone 24 is polyurethane fair water cone either wood plastic composite fair water cone or not
Become rusty steel fair water cone, and fair water cone 24 is arc-shaped, and can effectively reduce gas-flow resistance, one end of 24 outwardly convex of fair water cone is water conservancy diversion end
241,24 other end of fair water cone is fixing end 242, and water conservancy diversion end 241 is equipped with drilling, and water conservancy diversion end 241 is passed through by fixing bolt and bored
Hole is fixedly connected with supporting rod 3, and fixing end 242 extends internally to be formed to overlap with noise elimination column shell 21 and be fixed with merga pass screw
Connection.It is equipped with perforated plate on 1 inner wall of suppressor case, multiple holes is offered on perforated plate and on noise elimination column shell 21,
Multiple holes are with trigonometric expression array or rectangular array arrangement, with reference to figure 5 and Fig. 6, the arrangement form of hole and noise elimination on orifice plate
The arrangement form of hole is identical on column shell 2, aperture 3-10mm, percent opening 15-40%.Suppressor case 1 and noise elimination column shell
21 be polyvinyl chloride shell or compound polyurethane material shell either glass steel shell or wood moulding shell, is had good anti-
The performances such as acid and alkali corrosion, high temperature resistant, salt spray resistance, 21 thickness of noise elimination column shell are 2-15mm, and 2 length of noise elimination column is 500-
The diameter of section size of 3000mm, noise elimination column shell 21 are 100-500mm, and 21 outside of noise elimination column shell can lay Weather-proof film to carry
The service life of high noise elimination column 2.
Absorbent treatment 22 is filled in inside noise elimination column shell 21, and absorbent treatment 22 is the centrifugally glass-wool that thickness is 30-150mm
The unit weight of layer, centrifugal glass wool layer is 30-70kg/m3, waterproof layer 23 is wrapped in outside absorbent treatment, and waterproof layer 23 is alkali-free hydrophobic
Glass fiber layer of cloth can effectively play the effect for preventing moisture, steam from entering inside wrapped up absorbent treatment 22, be reached to absorbent treatment 22
To preferable protection, noise elimination column 2 can open up osculum so that the water of agglutination drippage is discharged in lowest position when in use.
Although above having made detailed description to the utility model with generality explanation and specific embodiment,
On the basis of the utility model, it can be made some modifications or improvements, this is apparent to those skilled in the art
's.Therefore, these modifications or improvements on the basis of without departing from the spirit of the present invention, belong to the utility model and want
Seek the range of protection.
Claims (10)
1. a kind of novel array type silencer, which is characterized in that the novel array type silencer include suppressor case (1) and
The opening of multiple noise elimination columns (2), suppressor case (1) both ends is equipped with more supporting rods (3), the multiple noise elimination column
(2) setting that is arranged in array is internal in suppressor case (1), and noise elimination column (2) both ends are fixed on supporting rod (3), described
Noise elimination column (2) includes noise elimination column shell (21), absorbent treatment (22) and waterproof layer (23), and noise elimination column shell (21) both ends are logical
Fair water cone (24) closure is crossed, the fair water cone (24) is connected to supporting rod (3), and the absorbent treatment (22) is filled in noise elimination column shell
(21) internal, it is external that the waterproof layer (23) is wrapped in absorbent treatment (22).
2. a kind of novel array type silencer according to claim 1, which is characterized in that in the suppressor case (1)
It is equipped with orifice plate on wall, offers multiple holes on the orifice plate and on noise elimination column shell (21), the multiple hole is with three
Angie type array or rectangular array arrangement, the arrangement of the arrangement form of hole and hole on noise elimination column shell (21) on the orifice plate
Form is identical.
3. a kind of novel array type silencer according to claim 1, which is characterized in that fair water cone (24) convex
The one end risen is water conservancy diversion end (241), and fair water cone (24) other end is fixing end (242), and the water conservancy diversion end (241) is equipped with
Drilling, the water conservancy diversion end (241) pass through drilling to be fixedly connected with supporting rod (3) by fixing bolt, the fixing end (242) to
Interior extension forms overlap joint with noise elimination column shell (21) and is fixedly connected with merga pass screw.
4. a kind of novel array type silencer according to claim 3, which is characterized in that the fair water cone (24) is in circular arc
Shape or prismatic table shape, the fair water cone (24) are polyurethane fair water cone either wood plastic composite fair water cone or stainless steel diversion
Cap.
5. a kind of novel array type silencer according to claim 1, which is characterized in that the noise elimination column shell (21)
Section is round or rectangle, and noise elimination column shell (21) thickness is 2-15mm, noise elimination column shell (21) rectangular cross-section
When noise elimination column shell (21) cross-sectional length and cross-sectional width be 100-500mm, noise elimination column shell (21) section be circle
When noise elimination column shell (21) diameter of section be 100-500mm, the noise elimination column shell (21) be polyvinyl chloride shell or polyurethane
Composite material casing either glass box hat or wood moulding shell.
6. a kind of novel array type silencer according to claim 1, which is characterized in that the absorbent treatment (22) is thickness
Unit weight for the centrifugal glass wool layer of 30-150mm, the centrifugal glass wool layer is 30-70kg/m3, the waterproof layer (23) is
Alkali-free hydrophobic glass silk layer of cloth.
7. a kind of novel array type silencer according to claim 1, which is characterized in that the noise elimination column shell (21) is outside
Portion is laid with Weather-proof film.
8. a kind of novel array type silencer according to claim 1, which is characterized in that the suppressor case (1) is outside
Portion is laid with decorating film.
9. a kind of novel array type silencer according to claim 1, which is characterized in that the suppressor case (1) is
Polyvinyl chloride shell or compound polyurethane material shell either glass steel shell or wood moulding shell, the suppressor case (1)
Thickness is 30-200mm.
10. a kind of novel array type silencer according to claim 1, which is characterized in that noise elimination column (2) length is
500-3000mm, the spacing between the two neighboring noise elimination column (2) are 50-500mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721681658.9U CN207690491U (en) | 2017-12-06 | 2017-12-06 | A kind of novel array type silencer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721681658.9U CN207690491U (en) | 2017-12-06 | 2017-12-06 | A kind of novel array type silencer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207690491U true CN207690491U (en) | 2018-08-03 |
Family
ID=62996380
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721681658.9U Active CN207690491U (en) | 2017-12-06 | 2017-12-06 | A kind of novel array type silencer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207690491U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109036366A (en) * | 2018-09-20 | 2018-12-18 | 郑州静邦噪声振动控制工程技术有限公司 | Array muffler and its special-shaped muffler unit |
| CN109102788A (en) * | 2018-10-28 | 2018-12-28 | 扬州新扬通风设备有限公司 | A kind of matrix form silencer of inner circle foreign side |
| CN109102789A (en) * | 2018-10-28 | 2018-12-28 | 扬州新扬通风设备有限公司 | A kind of array type silencer |
| CN110206766A (en) * | 2019-06-30 | 2019-09-06 | 连云港市泰格电力设备有限公司 | Rectangular array cylindricality fans silencer |
| CN111022814A (en) * | 2019-12-17 | 2020-04-17 | 华电重工股份有限公司 | Matrix type silencer |
| CN112460076A (en) * | 2020-07-13 | 2021-03-09 | 南京静宝声学科技有限公司 | Main exhaust fan array type silencer for large air volume and strong mixed noise |
| CN115223527A (en) * | 2022-06-21 | 2022-10-21 | 城林科技(上海)有限公司 | Array type silencer |
| CN115662378A (en) * | 2022-10-20 | 2023-01-31 | 国网湖南省电力有限公司 | An Impedance Composite Noise-absorbing Structure |
-
2017
- 2017-12-06 CN CN201721681658.9U patent/CN207690491U/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109036366A (en) * | 2018-09-20 | 2018-12-18 | 郑州静邦噪声振动控制工程技术有限公司 | Array muffler and its special-shaped muffler unit |
| CN109102788A (en) * | 2018-10-28 | 2018-12-28 | 扬州新扬通风设备有限公司 | A kind of matrix form silencer of inner circle foreign side |
| CN109102789A (en) * | 2018-10-28 | 2018-12-28 | 扬州新扬通风设备有限公司 | A kind of array type silencer |
| CN109102788B (en) * | 2018-10-28 | 2023-05-05 | 扬州新扬通风设备有限公司 | Matrix muffler with inner circle and outer square |
| CN110206766A (en) * | 2019-06-30 | 2019-09-06 | 连云港市泰格电力设备有限公司 | Rectangular array cylindricality fans silencer |
| CN111022814A (en) * | 2019-12-17 | 2020-04-17 | 华电重工股份有限公司 | Matrix type silencer |
| CN112460076A (en) * | 2020-07-13 | 2021-03-09 | 南京静宝声学科技有限公司 | Main exhaust fan array type silencer for large air volume and strong mixed noise |
| CN115223527A (en) * | 2022-06-21 | 2022-10-21 | 城林科技(上海)有限公司 | Array type silencer |
| CN115662378A (en) * | 2022-10-20 | 2023-01-31 | 国网湖南省电力有限公司 | An Impedance Composite Noise-absorbing Structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207690491U (en) | A kind of novel array type silencer | |
| CN102522079B (en) | Impedance compound right-angled muffler | |
| CN107202501A (en) | Centralized cooling tower ventilation noise reduction system | |
| CN110428800A (en) | A kind of pre- insulation impedance composite muffler | |
| CN105091006B (en) | Rain-proof noise elimination blast cap | |
| CN205582478U (en) | Simple silencer | |
| CN203429988U (en) | Exhaust duct and exhaust system with function of noise elimination | |
| KR930007077B1 (en) | Sound absorbing pipe | |
| CN214402251U (en) | Curtain type sound-absorbing wedge structure | |
| CN203223016U (en) | Dry ice washing mold house | |
| CN204791946U (en) | Sound absorption and insulation device for moving sound source and frequency division sound absorption and insulation cover comprising same | |
| CN104047447A (en) | Dry ice washing mold house | |
| CN203394890U (en) | Composite chimney muffler | |
| CN207686794U (en) | A kind of novel anticorrosion silencer | |
| CN216109274U (en) | Sound-proof waterproof long-life roof | |
| CN210049421U (en) | Waterproof broadband composite aluminum alloy sound absorber | |
| CN208859627U (en) | Turncap silencer | |
| CN215971958U (en) | Enclosure well noise elimination structure for ship mechanical transmission | |
| CN223140373U (en) | Drop-shaped muffler | |
| CN206989397U (en) | A kind of non-maintaining ventilation noise reducing apparatus | |
| CN215484282U (en) | Gypsum board model that green architectural design used | |
| CN206592309U (en) | The fan assembly of integrated water-cooling system | |
| CN111946670B (en) | T-shaped resistance micropore multi-combination exhaust silencer | |
| CN202470088U (en) | Chimney silencer of gas-fired boiler | |
| CN203363441U (en) | Totally-closed acoustic absorption air pipe |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100162 11 floor, 6 building, JIAYE Plaza, 9 Hongye Road, Xihongmen, Daxing District, Beijing. Co-patentee after: Bao Du International New Materials Co., Ltd. Patentee after: Bao Du International Engineering Technology Co., Ltd. Address before: 100162 11 floor, 6 building, JIAYE Plaza, 9 Hongye Road, Xihongmen, Daxing District, Beijing. Co-patentee before: Bao Du International New Materials Co., Ltd. Patentee before: Beijing Baodu Steel Structure Engineering Co., Ltd. |