CN202957036U - Outdoor impedance composite silencer - Google Patents
Outdoor impedance composite silencer Download PDFInfo
- Publication number
- CN202957036U CN202957036U CN 201220505380 CN201220505380U CN202957036U CN 202957036 U CN202957036 U CN 202957036U CN 201220505380 CN201220505380 CN 201220505380 CN 201220505380 U CN201220505380 U CN 201220505380U CN 202957036 U CN202957036 U CN 202957036U
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- acoustic board
- outdoor
- noise reduction
- inorganic acoustic
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Abstract
The utility model relates to an outdoor impedance composite silencer which is composed of a resistance silencing component, an upper resistive silencing component and a lower resistive silencing component, and is arranged at an air outlet. The resistance silencing component is composed of an arc-shaped diversion mold, two side plates and inorganic acoustic boards, the upper resistive silencing component is composed of inorganic acoustic boards, slots and a limiting plate, and the lower resistive silencing component is composed of inorganic acoustic boards and slots; the arc-shaped diversion mold is composed of a glass fiber reinforced plastic composite structure, and the inorganic acoustic boards are pasted in the arc-shaped diversion mold and the two side plates by using a damping sound insulation glue; the upper resistive silencing component is arranged above an outlet of the arc-shaped diversion mold and the air outlet ground, and the lower resistive silencing component is arranged below the air outlet ground. According to the utility model, the used materials all possess good weather abilities and can be normally used in the severe environments which are wet and have corrosive gases; the outdoor impedance composite silencer of the utility model is simple in structure and low in cost, and is convenient to maintain and replace the acoustic components.
Description
Technical field
The utility model relates to a kind of noise control technique, particularly relates to a kind of outdoor impedance muffler that can use in moist, as to have corrosive gas rugged surroundings.
Background technology
Along with the fast development of urban construction, the former sewage treatment plant that is located in urban fringe is faced with the encirclement of residential neighborhoods, and the noise of sewage treatment plant highlights day by day to resident's interference problem.The noise figure superstate standard far away of each noise source of sewage treatment plant uses xoncrete structure that oxidation ditch is sealed at present, has satisfied the current noise control that belongs to the large oxidation ditch of wide sound.But, the air inlet of the oxygen supply demand that turns the butterfly aerator of reservation, sewage gas outlet, aeration tank and turn butterfly aerator access hole becomes the main path that turns the noise transmission of butterfly aerator, still surrounding environment is impacted.Because the sewage of oxidation ditch and the waste gas of effusion have corrosivity, the acoustic absorbant of general ventilation silencer and steel structure casing are difficult to use in this type of humidity, rugged surroundings with corrosive gas.
Glass fiber reinforced plastics composite material is good anticorrosive material, and acid, alkali, salt and multiple oils and the solvent of atmosphere, water and general concentration had preferably resistivity.Be applied to the various aspects of chemical anticorrosion, replaced carbon steel, stainless steel, timber, non-ferrous metal etc.Can design neatly various infrastructure products as required, satisfy request for utilization, can make product that good globality is arranged.Expanded perlite granule, sound absorption haydite, expanded vermiculite, foaming sound-absorption glass, foaming sound absorption cement are sound-absorbing porous material, and is lightweight, acoustically effective good, weather resisteant good, can satisfy humidity, have the rugged surroundings request for utilization of corrosive gas.Simultaneously, it do not exist glass fibre cotton, mineral cotton, rock wool etc. to the harm of the harm of operator's respiratory system, health and as abandon after can not degrade and cause worry to the harm of environment, it is low to possess contamination factor, stablize the characteristics such as anti-aging, fire prevention, environmental protection, simultaneously, has cheap advantage.
Summary of the invention
The purpose of this utility model is to provide a kind of and can uses at abominable working environment moist, that have corrosive gas, and soundproof effect is good, cheap outdoor impedance muffler.For achieving the above object, technical solution of the present utility model is: a kind of outdoor impedance muffler, formed by reactive muffling member, upper resistance noise reduction member and lower resistance noise reduction member, and be installed in the gas outlet.The reactive muffling member is made by the moulding of arc water conservancy diversion, two side plates and inorganic acoustic board, and upper resistance noise reduction member, lower resistance noise reduction member are made by inorganic acoustic board and slot.The moulding of described arc water conservancy diversion is made by glass fiber composite structure, the flange of arc water conservancy diversion moulding bottom uses bolt to be installed on the ground of gas outlet, the outlet of arc water conservancy diversion moulding uses damping sound insulation glue that inorganic acoustic board is sticked in the moulding of arc water conservancy diversion and two side plates back to sensitive point for noise.Heat isolating damping glue adopts that high molecular polymer is that base-material has that the glued membrane pliability is good, the characteristics of strong adhesion, good weatherability.Both can be used as adhesion agent, preferably damping defening effect had also been arranged, improved the oise insulation factor of arc water conservancy diversion moulding.Export dorsad overriding noise sensitive spot, can slow down the radiation of noise to the impact of sensitive point for noise.Described inorganic acoustic board has the inorganic porous acoustic absorbant of woven wire to make by interior, and described inorganic porous acoustic absorbant can be that expanded perlite granule also can be sound absorption haydite, expanded vermiculite, foaming sound absorption cement etc.Inorganic acoustic board has good acoustically effective, can absorb the noise of gas outlet.Simultaneously, be easy to machine-shaping, need not to arrange armour layer, cheap.There is woven wire can satisfy the requirement of strength of inorganic acoustic board in the inorganic acoustic board.Described slot comprises U-lag and baffle plate, the integral type slot of being made by glass fiber reinforced plastics composite material.
The slot of upper resistance noise reduction member is separately positioned on arc water conservancy diversion moulding outlet top and ground, gas outlet, inorganic acoustic board vertically is installed in the outlet of arc water conservancy diversion moulding, the axis of inorganic acoustic board is arranged along the airflow direction parallel interval, before limiting plate uses bolt to be installed in inorganic acoustic board.Lower resistance noise reduction member is arranged on the gas outlet below ground, slot is installed in gas outlet xoncrete structure two sides, inorganic acoustic board vertically is placed in the slot of outlet concrete structure, and inorganic acoustic board top is concordant with ground, and the axis of inorganic acoustic board is arranged along the airflow direction parallel interval.Arc water conservancy diversion moulding between the lower resistance noise reduction member forms the reactive muffling member, can intercept low-frequency noise.Be mutually vertical between the inorganic acoustic board plane of the inorganic acoustic board of upper resistance noise reduction member and lower resistance noise reduction member.Can intercept in the sound suppressor the vertically gas channel of rectilinear propagation sound wave, the high frequency that can effectively stop in traditional resistive plate silencer lost efficacy, and improved soundproof effect.Employed material all has good weatherability, can satisfy humidity, have the rugged surroundings request for utilization of corrosive gas.
Because impurity and gasoloid in the gas can be attached on the inorganic acoustic board, the time has been grown, and can stop up the micropore on inorganic acoustic board surface, affects the sound absorbing capabilities of inorganic acoustic board.For this reason, should make regular check on the inorganic acoustic board of replacing.Inorganic acoustic board is installed in maintenance and the replacing that can make things convenient for inorganic acoustic board in the slot.
The beneficial effects of the utility model are when satisfying the obstruct noise transmission, to have the advantages that using in the rugged surroundings of humidity, corrosive gas.Simultaneously, simple in structure, the maintenance and the replacing, cheap that make things convenient for sound absorbing member.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further described.
Fig. 1 is the side-looking sectional structural map of outdoor impedance muffler embodiment.
Fig. 2 is the sectional structural map of facing of Fig. 1.
Fig. 3 is the sectional structural map of overlooking of Fig. 1.
1. gas outlets among the figure, 2. arc water conservancy diversion moulding, 3. side plate, 4. inorganic acoustic board, 5. slot, 6. flange, 7. bolt, 8. sensitive point for noise, 9. damping sound insulation glue, 10.U shape groove, 11. baffle plates, 12. limiting plates.
Embodiment
Embodiment as shown in Figure 1, 2, 3, a kind of outdoor impedance muffler is comprised of reactive muffling member, upper resistance noise reduction member and lower resistance noise reduction member, is installed in gas outlet (1).The reactive muffling member is made by arc water conservancy diversion moulding (2), two side plates (3) and inorganic acoustic board (4), and upper resistance noise reduction member, lower resistance noise reduction member are made by inorganic acoustic board (4) and slot (5).Described arc water conservancy diversion moulding (2) is made by glass fiber composite structure, the flange (6) of arc water conservancy diversion moulding (2) bottom uses bolt (7) to be installed on the ground of gas outlet (1), the outlet of arc water conservancy diversion moulding (2) uses damping sound insulation glue (9) that inorganic acoustic board (4) is sticked in arc water conservancy diversion moulding (2) and two side plates (3) back to sensitive point for noise (8).Described inorganic acoustic board (4) has the inorganic porous acoustic absorbant of woven wire to make by interior, and described inorganic porous acoustic absorbant can be that expanded perlite granule also can be sound absorption haydite, expanded vermiculite, foaming sound absorption cement etc.Described slot (5) comprises U-lag (10) and baffle plate (11), the integral type slot (5) of being made by glass fiber reinforced plastics composite material.The slot of upper resistance noise reduction member (5) is separately positioned on arc water conservancy diversion moulding (2) outlet top and ground, gas outlet (1), inorganic acoustic board (4) vertically is installed in the outlet of arc water conservancy diversion moulding (2), the axis of inorganic acoustic board (4) is arranged along the airflow direction parallel interval, and it is front that limiting plate (12) uses bolt (7) to be installed in inorganic acoustic board (4).Lower resistance noise reduction member is arranged on gas outlet (1) below ground, slot (5) is installed in gas outlet (1) structure two sides, inorganic acoustic board (4) vertically is placed in the slot (5) of gas outlet (1), inorganic acoustic board (4) top is concordant with ground, and the axis of inorganic acoustic board (4) is arranged along the airflow direction parallel interval.Be mutually vertical between inorganic acoustic board (4) plane of the inorganic acoustic board (4) of upper resistance noise reduction member and lower resistance noise reduction member.
If because check that changing inorganic acoustic board needs, can be in accordance with the following steps: unload lower limiting board (12) bolt (7), the inorganic acoustic board (4) of upper resistance noise reduction member is extracted out from slot (4), i.e. the inorganic acoustic board (4) of replaceable lower resistance noise reduction member.When reinstalling, successive is put into slot (4) with the inorganic acoustic board (4) of the inorganic acoustic board (4) of lower resistance noise reduction member, upper resistance noise reduction member, and it is front that limiting plate (12) uses bolt (7) to be installed in inorganic acoustic board (4).
Should be appreciated that within not breaking away from scope of the present utility model, can make multiple combination and change to above-described embodiment.All any modifications of within spirit of the present utility model and principle, doing, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.
Claims (7)
1. outdoor impedance muffler, formed by reactive muffling member, upper resistance noise reduction member and lower resistance noise reduction member, be installed in the gas outlet, it is characterized in that: the reactive muffling member is made of the moulding of arc water conservancy diversion, two side plates and inorganic acoustic board, upper resistance noise reduction member is made of inorganic acoustic board, slot and limiting plate, and lower resistance noise reduction member is made of inorganic acoustic board and slot.
2. outdoor impedance muffler according to claim 1, it is characterized in that: the moulding of described arc water conservancy diversion is made by glass fiber composite structure, the flange of arc water conservancy diversion moulding bottom uses bolt to be installed on the ground of gas outlet, the outlet of arc water conservancy diversion moulding uses damping sound insulation glue that inorganic acoustic board is sticked in the moulding of arc water conservancy diversion and two side plates back to sensitive point for noise.
3. outdoor impedance muffler according to claim 1, it is characterized in that: described inorganic acoustic board has the inorganic porous acoustic absorbant of woven wire to make by interior, and described inorganic porous acoustic absorbant can be that expanded perlite granule also can be sound absorption haydite, expanded vermiculite, foaming sound absorption cement.
4. outdoor impedance muffler according to claim 1, it is characterized in that: described slot comprises U-lag and baffle plate, the integral type slot of being made by glass fiber reinforced plastics composite material.
5. outdoor impedance muffler according to claim 1, it is characterized in that: the slot of upper resistance noise reduction member is separately positioned on arc water conservancy diversion moulding outlet top and ground, gas outlet, inorganic acoustic board vertically is installed in the outlet of arc water conservancy diversion moulding, the axis of inorganic acoustic board is arranged along the airflow direction parallel interval, before limiting plate uses bolt to be installed in inorganic acoustic board.
6. outdoor impedance muffler according to claim 1, it is characterized in that: lower resistance noise reduction member is arranged on the gas outlet below ground, slot is installed in gas outlet xoncrete structure two sides, inorganic acoustic board vertically is placed in the slot of outlet concrete structure, inorganic acoustic board top is concordant with ground, and the axis of inorganic acoustic board is arranged along the airflow direction parallel interval.
7. it is characterized in that according to claim 5 or 6 described outdoor impedance mufflers: between the inorganic acoustic board of upper resistance noise reduction member and the inorganic acoustic board plane of lower resistance noise reduction member for mutual vertical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220505380 CN202957036U (en) | 2012-09-29 | 2012-09-29 | Outdoor impedance composite silencer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220505380 CN202957036U (en) | 2012-09-29 | 2012-09-29 | Outdoor impedance composite silencer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202957036U true CN202957036U (en) | 2013-05-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220505380 Expired - Fee Related CN202957036U (en) | 2012-09-29 | 2012-09-29 | Outdoor impedance composite silencer |
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| Country | Link |
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| CN (1) | CN202957036U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103307042A (en) * | 2013-06-21 | 2013-09-18 | 重庆长江造型材料（集团）股份有限公司 | Blower silencing device |
| CN103606370A (en) * | 2012-09-29 | 2014-02-26 | 厦门嘉达环保建造工程有限公司 | Outdoor impedance composite silencer |
-
2012
- 2012-09-29 CN CN 201220505380 patent/CN202957036U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103606370A (en) * | 2012-09-29 | 2014-02-26 | 厦门嘉达环保建造工程有限公司 | Outdoor impedance composite silencer |
| CN103606370B (en) * | 2012-09-29 | 2016-08-03 | 厦门嘉达环保建造工程有限公司 | Outdoor impedance composite silencer |
| CN103307042A (en) * | 2013-06-21 | 2013-09-18 | 重庆长江造型材料（集团）股份有限公司 | Blower silencing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130529 Termination date: 20150929 |
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| EXPY | Termination of patent right or utility model |