CN105091006A - Rain-proof noise eliminating funnel cap - Google Patents
Rain-proof noise eliminating funnel cap Download PDFInfo
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- CN105091006A CN105091006A CN201410203456.8A CN201410203456A CN105091006A CN 105091006 A CN105091006 A CN 105091006A CN 201410203456 A CN201410203456 A CN 201410203456A CN 105091006 A CN105091006 A CN 105091006A
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- rainproof
- sound absorption
- chimney
- air outlet
- rain
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- Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
Abstract
The invention discloses a rain-proof noise eliminating funnel cap, comprising a top umbrella-shaped cap, a sound absorption diversion cone, a circular tube-shaped rain-proof sound absorption plate, an installation bearing structure and diversion sound absorption male tabs. The top umbrella-shaped cap is arranged above an air outlet of a chimney; a cone bottom of the sound absorption diversion cone is arranged in the top umbrella-shaped cap; a cone tip of the sound absorption diversion cone faces to an airflow direction of the air outlet of the chimney; the circular tube-shaped rain-proof sound absorption plate is vertically arranged; the upper part of the circular tube-shaped rain-proof sound absorption plate is connected with the edge of the top umbrella-shaped cap; the lower part of the circular tube-shaped rain-proof sound absorption plate is lower than the air outlet of the chimney. The installation bearing structure consists of supporting vertical grooves, supporting transverse grooves, an upper flange and a lower flange, wherein the supporting vertical grooves are connected with the top umbrella-shaped cap and the upper flange, the supporting transverse grooves are horizontally connected with the circular tube-shaped rain-proof sound absorption plate and the supporting vertical grooves; the lower flange is welded on the chimney wall; the upper flange and the lower flange are connected through a bolt. The rain-proof noise eliminating funnel cap provided by the invention can meet the air-conditioning requirement, can also prevent the rainwater, and is high in effective ventilation rate, simple in manufacture and installation and high in noise reduction.
Description
Technical field
The present invention relates to a kind of turncap, be especially arranged on chimney air outlet, there is the rainproof noise elimination blast cap of noise elimination, rainproof function simultaneously.
Background technology
The thing of the similar umbrella of chimney rain screen rainhat, the umbrella crown of a pyramid type or dome-type and several support bars compositions, be generally used on exhausting pipeline vertically upward and chimney, arranges for preventing rainwater from entering pipeline.
In order to normal discharge waste gas, the waste gas of chimney is often via blower fan pressurised exhaust, inevitably by blower fan and noise of equipment via the radiation of chimney air outlet, because the setting position of chimney is higher, intercept without effective barrier, cause sizable scope environment to be around subject to influence of noise, make a big impact to sensitive point for noise.So current way first arranges fans silencer, after reducing noise, enter smoke stack emission again.But, if the position of the not reserved silencer of blower fan machine room, reach noise reduction by being difficult to.
Summary of the invention
In order to overcome the impact via the radiation of chimney air outlet of existing blower fan and noise of equipment.The invention provides a kind of rainproof noise elimination blast cap, this rainproof noise elimination blast cap can not only meet ventilate and prevent karaburan, requirement that sleet water enchroachment (invasion) is attacked, and there is the function eliminating chimney air outlet radiated noise, the advantages such as volume is little, lightweight, simple installation, cost are low.
The technical solution adopted for the present invention to solve the technical problems is: a kind of rainproof noise elimination blast cap, is made up of top umbrella crown, acoustic absorbing guide cone body, the rainproof acoustic board of tubular, installation load-carrying construction, water conservancy diversion sound absorption inserted sheet.Described top umbrella crown is arranged on above chimney air outlet; Be arranged at the bottom of the cone of described acoustic absorbing guide cone body in the umbrella crown of top, cone point faces the airflow direction of chimney air outlet; Acoustic absorbing guide cone body, because its end absorption area is little, its acoustic impedance progressively increases to the impedance close to porous material from the characteristic impedance close to air, and impedance is progressively increased by little, and change is not remarkable relatively.Therefore, when sound wave is incident from end, due to the transition gradually of absorbent treatment, the acoustic impedance of material can be mated preferably with the acoustic impedance of air, makes the incident acoustic wave overwhelming majority enter material internal and be absorbed efficiently, has excellent broad band sound absorption performance.
The rainproof acoustic board of described tubular is vertically arranged, and top is connected with top umbrella crown edge, and bottom is lower than chimney air outlet.Can effectively prevent karaburan, sleet water from falling to inject in chimney.The rainproof acoustic board bottom of tubular more lower than chimney air outlet, soundproof effect better, but windage is higher.
Described installation load-carrying construction by supporting vertical groove, support translot, upper flange, lower flange form, support vertical groove and vertically connect top umbrella crown, upper flange, support the rainproof acoustic board of translot level connection joint tubular, support vertical groove, lower flange is welded on chimney wall, and upper flange, lower flange are bolted.
Filling sucting sound material in described acoustic absorbing guide cone body structure, outer cover glass cloth or weathering plastic sheeting, metal mask perforated plate is established on surface.The rainproof acoustic board inwall of described tubular arranges the outer cover glass cloth of sound-absorbing material or weathering plastic sheeting, and metal mask perforated plate is established on surface.Can the glass cloth that sound-absorbing material covers be changed into weathering plastic sheeting outward when the dust contained in air-flow, aqueous vapor, oil gas, acid and alkali substance and other impurity.
Described water conservancy diversion sound absorption inserted sheet is made up of sound-absorbing material, two outer cover glass cloth or weathering plastic sheeting, and metal mask perforated plate is established on surface, is vertically set on and supports vertical groove, supports between translot, top umbrella crown, the rainproof acoustic board of tubular.Bottom the rainproof acoustic board of described tubular, safe edge frame is set.Can prevent from outside sound-absorbing material is exposed to, improving service life.Water conservancy diversion sound absorption inserted sheet, support vertical groove and support translot correspondence and arrange, can arrange multiple water conservancy diversion sound absorption inserted sheet in each rainproof noise elimination blast cap, the spacing between water conservancy diversion sound absorption inserted sheet is less, and soundproof effect better.Meanwhile, support vertical groove and support translot quantity the more, the structural stability of hoisting process better, bears the ability of wind load better.
According to air outlet blast, air quantity and criteria of noise control, determine the ratio of effective air-out area between the rainproof acoustic board bottom of tubular and chimney.
Noise absorbs via chimney air outlet → by acoustic absorbing guide cone body and the lead rainproof acoustic board of (resistance and resistance noise reduction) → tubular and water conservancy diversion absorb sound absorbs between inserted sheet and the air outlet reflected between the rainproof acoustic board of (resistance noise reduction) → tubular and chimney distributes, and forms impedance type noise elimination structure.Noise does not have put-through channel, and the high frequency having stopped noise lost efficacy, and improves low-frequency noise noise elimination ratio, effectively improves sound deadening capacity, have full range noise elimination function.Effective area between the rainproof acoustic board of tubular and chimney is greater than the effective area of chimney air outlet, can reduce air-flow velocity to greatest extent, reduces airflow pressure losses.
The invention has the beneficial effects as follows: the invasion and attack that karaburan, sleet water 1, can be prevented, and there is the function eliminating chimney air outlet radiated noise; 2, have full range noise elimination function, airflow pressure losses is little; 3, structure is simple, volume is little, lightweight, cost is low; 4, without the need to taking blower fan machine room space, convenient for installation and maintenance.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is front view of the present invention.
Fig. 2 is the A direction view of the embodiment of the present invention.
1. umbrella crowns in figure, 2. acoustic absorbing guide cone body, 3. rainproof acoustic board, 4. water conservancy diversion sound absorption inserted sheet, 5. chimney air outlet, 6. bores the end, 7. cone point, 8. sound-absorbing material, 9. glass cloth, 10. mask perforated plate, 11. support vertical groove, 12. support translot, 13. upper flanges, 14. lower flanges, 15. bolts, 16. safe edge frames.
Detailed description of the invention
In the embodiment shown in Fig. 1,2, a kind of rainproof noise elimination blast cap, is made up of top umbrella crown (1), acoustic absorbing guide cone body (2), the rainproof acoustic board of tubular (3), installation load-carrying construction, water conservancy diversion sound absorption inserted sheet (4).Described top umbrella crown (1) is arranged on chimney air outlet (5) top; At the bottom of the cone of described acoustic absorbing guide cone body (2), (6) are arranged in top umbrella crown (1), and cone point (7) faces the airflow direction of chimney air outlet (5); The rainproof acoustic board of described tubular (3) is vertically arranged, and top is connected with top umbrella crown (1) edge, and bottom is lower than chimney air outlet (5).
Filling sucting sound material (8) in described acoustic absorbing guide cone body (2) structure, outer cover glass cloth (9) or weathering plastic sheeting, metal mask perforated plate (10) is established on surface.The rainproof acoustic board of described tubular (3) inwall arranges the outer cover glass cloth (9) of sound-absorbing material (8) or weathering plastic sheeting, and metal mask perforated plate (10) is established on surface.
Described installation load-carrying construction by supporting vertical groove (11), support translot (12), upper flange (13), lower flange (14) form, support vertical groove (11) and vertically connect top umbrella crown (1), upper flange (13), support the rainproof acoustic board of translot (12) level connection joint tubular (3), support vertical groove (11), lower flange (14) is welded on chimney wall, and upper flange (13), lower flange (14) are connected by bolt (15).
Described water conservancy diversion sound absorption inserted sheet (4) is made up of sound-absorbing material (8), two outer cover glass cloth (9) or weathering plastic sheeting, metal mask perforated plate (10) is established on surface, is vertically set on and supports vertical groove (11), supports between translot (12), top umbrella crown (1), the rainproof acoustic board of tubular (3).The rainproof acoustic board of described tubular (3) bottom arranges safe edge frame (16).
Above-described embodiment is only used for further illustrating the rainproof noise elimination blast cap of one of the present invention; but the present invention is not limited to embodiment; every above embodiment is done according to technical spirit of the present invention any simple modification, equivalent variations and modification, all fall in the protection domain of technical solution of the present invention.
Claims (6)
1. a rainproof noise elimination blast cap, is made up of top umbrella crown, acoustic absorbing guide cone body, the rainproof acoustic board of tubular, installation load-carrying construction, water conservancy diversion sound absorption inserted sheet, it is characterized in that: described top umbrella crown is arranged on above chimney air outlet; Be arranged at the bottom of the cone of described acoustic absorbing guide cone body in the umbrella crown of top, cone point faces the airflow direction of chimney air outlet; The rainproof acoustic board of described tubular is vertically arranged, and top is connected with top umbrella crown edge, and bottom is lower than chimney air outlet.
2. rainproof noise elimination blast cap according to claim 1, it is characterized in that: filling sucting sound material in described acoustic absorbing guide cone body structure, outer cover glass cloth or weathering plastic sheeting, metal mask perforated plate is established on surface.
3. rainproof noise elimination blast cap according to claim 1, is characterized in that: the rainproof acoustic board inwall of described tubular arranges the outer cover glass cloth of sound-absorbing material or weathering plastic sheeting, and metal mask perforated plate is established on surface.
4. rainproof noise elimination blast cap according to claim 1, it is characterized in that: described installation load-carrying construction by supporting vertical groove, support translot, upper flange, lower flange form, support vertical groove and vertically connect top umbrella crown, upper flange, support the rainproof acoustic board of translot level connection joint tubular, support vertical groove, lower flange is welded on chimney wall, and upper flange, lower flange are bolted.
5. rainproof noise elimination blast cap according to claim 1, it is characterized in that: described water conservancy diversion sound absorption inserted sheet is made up of sound-absorbing material, two outer cover glass cloth or weathering plastic sheeting, metal mask perforated plate is established on surface, is vertically set on and supports vertical groove, supports between translot, top umbrella crown, the rainproof acoustic board of tubular.
6. rainproof noise elimination blast cap according to claim 1, is characterized in that: arrange safe edge frame bottom the rainproof acoustic board of described tubular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410203456.8A CN105091006B (en) | 2014-05-15 | 2014-05-15 | Rain-proof noise elimination blast cap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410203456.8A CN105091006B (en) | 2014-05-15 | 2014-05-15 | Rain-proof noise elimination blast cap |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105091006A true CN105091006A (en) | 2015-11-25 |
| CN105091006B CN105091006B (en) | 2017-08-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410203456.8A Active CN105091006B (en) | 2014-05-15 | 2014-05-15 | Rain-proof noise elimination blast cap |
Country Status (1)
| Country | Link |
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| CN (1) | CN105091006B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107559855A (en) * | 2017-10-17 | 2018-01-09 | 郑州科源耐磨防腐工程有限公司 | A kind of cavity type chimney barrel head rain-proof cover systems |
| CN108006681A (en) * | 2017-12-30 | 2018-05-08 | 江苏永益环保科技有限公司 | Noise reduction rain-proof draining blast cap |
| CN109764350A (en) * | 2018-12-27 | 2019-05-17 | 乔治洛德方法研究和开发液化空气有限公司 | A kind of rain insensitive device for the exhaust pipe being vented upwards |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1213538A2 (en) * | 2000-12-08 | 2002-06-12 | ABB Turbo Systems AG | Exhaust gas system with Helmholtz resonator |
| CN201526979U (en) * | 2009-10-26 | 2010-07-14 | 上海众汇泡沫铝材有限公司 | Chimney air-discharge silencer |
| CN203810431U (en) * | 2014-05-15 | 2014-09-03 | 厦门嘉达声学技术有限公司 | Rainproof muffle cowl |
-
2014
- 2014-05-15 CN CN201410203456.8A patent/CN105091006B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1213538A2 (en) * | 2000-12-08 | 2002-06-12 | ABB Turbo Systems AG | Exhaust gas system with Helmholtz resonator |
| CN201526979U (en) * | 2009-10-26 | 2010-07-14 | 上海众汇泡沫铝材有限公司 | Chimney air-discharge silencer |
| CN203810431U (en) * | 2014-05-15 | 2014-09-03 | 厦门嘉达声学技术有限公司 | Rainproof muffle cowl |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107559855A (en) * | 2017-10-17 | 2018-01-09 | 郑州科源耐磨防腐工程有限公司 | A kind of cavity type chimney barrel head rain-proof cover systems |
| CN108006681A (en) * | 2017-12-30 | 2018-05-08 | 江苏永益环保科技有限公司 | Noise reduction rain-proof draining blast cap |
| CN109764350A (en) * | 2018-12-27 | 2019-05-17 | 乔治洛德方法研究和开发液化空气有限公司 | A kind of rain insensitive device for the exhaust pipe being vented upwards |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105091006B (en) | 2017-08-11 |
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Inventor after: Lin Jie Inventor after: Song Jiping Inventor after: Lin Jiaxiang Inventor before: Lin Jie Inventor before: Chen Qingfang Inventor before: Song Jiping Inventor before: Lin Jiaxiang |
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