CN205331629U - Energy -conserving tuber pipe of making an uproar falls - Google Patents
Energy -conserving tuber pipe of making an uproar falls Download PDFInfo
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- CN205331629U CN205331629U CN201521068824.9U CN201521068824U CN205331629U CN 205331629 U CN205331629 U CN 205331629U CN 201521068824 U CN201521068824 U CN 201521068824U CN 205331629 U CN205331629 U CN 205331629U
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- energy
- noise
- sound absorbing
- heat
- airduct
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Abstract
The utility model discloses an energy -conserving tuber pipe of making an uproar falls belongs to ventilation air conditioning equipment technical field. The technical scheme who adopts does: the pipe wall ab intra of this energy -conservation tuber pipe outwards forms by inner panel surface course, sound absorbing layer, heat preservation and planking surface course are fixed in proper order, wherein, the sound absorbing layer is made by foamed aluminum plate, the heat preservation is made by the aerogel felt. The utility model discloses a foamed aluminium has replaced glass fiber and the phenolic foam among traditional composite air pipe for the sound absorbing material, has reduced glass fiber's use, harm that the use that has reduced glass fiber composite air pipe brought for the health to avoid phenolic foam's use, given harm human and that the environment brings. Need not carry out on -the -spot heat -insulation construction during the construction, consequently the unnecessary construction space that reserves to the space that can sparingly install reduces the floor height of constructing. The utility model has the advantages of the sound absorption is fallen and is made an uproar, and the fire prevention keeps warm the environmental protection, accord with the development trend of tuber pipe, but at air conditioner field widely used.
Description
Technical field
This utility model belongs to air conditioner equipment technical field, is specifically related to a kind of noise-reduction energy-saving airduct。
Background technology
Along with the raising of social development and living standards of the people, people are more and more higher to the requirement of life comfortableness, and ventilation and air conditioning engineering seems more and more important in building engineering field。In ventilation and air conditioning engineering, except comfortable, it is also as weighing one of good and bad important indicator of ventilation and air conditioning engineering that system low noise runs。Particularly library, the office space such as meeting room, broadcasting studio is strict especially to the noise requirements of ventilation, air-conditioning。In increasingly competitive air-conditioning market, high-quality, dominance energy, low noise have become as development trend。
Ventiduct system is applied to air-conditioning, industrial ventilation, dedusting and the field such as air conveying, at the air-supply of the engineering such as people's air defense, basement, air draft, smoke discharging pipe, especially needs fireproof region to be used widely in building。Ventilate, air-conditioning duct produces the reason of noise mainly has two kinds: one to be that the noise of blower fan and air conditioning unit operation is produced by the incoming room of airduct；Two is that air-flow produces at wind Bottomhole pressure。Therefore, the noise of ventilating and air conditioning system to be reduced, mainly reduce the noise of blower fan and air conditioning unit operation and the noise of airduct。The method of conventional control and reduction ventilating and air conditioning system noise has two kinds: one is installation muffling device on airduct。But in the middle of actual operation, the working effect of acoustic filter is bigger by air speed influence, if wind speed during system work is excessive, gas cycle-index is increased, deafener has little time noise reduction, and circulation noise just generates, and soundproof effect is then weakened, deafener work even can be affected, so that the method for this control and reduction noise has certain limitation time serious。Another kind is to use muffling air duct, muffling air duct conventional in the market is glass fiber composite air duct and metlbond compound air pipe, and there is many deficiencies in glass fiber composite air duct and metlbond compound air pipe, glass fibre such as glass fiber composite air duct inwall easily comes off, a large amount of dust can be produced, with the wind in inlet chamber, bring serious infringement to health。Further, glass fiber composite air duct is fire-retardant, mildew-resistant, humidity resistance are low, and by making moist and mycete causes sedimentation phenomenon, the damage of glass cotton can cause sound absorption qualities degradation。In metlbond compound air pipe, phenol formaldehyde foam uses temperature to be-60 DEG C～150 DEG C, so more than under 200 DEG C of high-temperature conditions, producing CO gas, human body is damaged；The production that additionally can use phenol and formaldehyde, phenol and formaldehyde in phenol formaldehyde foam production process is all high pollution thing, containing free aldehyde and free phenol inside phenolic resin, the person and environment all can be produced harm。
Utility model content
For the defect overcoming above-mentioned prior art to exist, the purpose of this utility model is in that to provide a kind of noise-reduction energy-saving airduct with noise reduction, insulation, fire prevention, moisture-proof function。
This utility model is to be achieved through the following technical solutions:
A kind of noise-reduction energy-saving airduct, the tube wall of this energy-conservation airduct is formed by inner panel surface layer, sound absorbing layer, heat-insulation layer and outside plate surface layer are fixing from inside to outside successively；Wherein, sound absorbing layer is made up of foamed aluminium board；Heat-insulation layer is made up of aerogel blanket。
Inner panel surface layer, sound absorbing layer, heat-insulation layer and outside plate surface layer are formed by fireproof bonding agent bonding。
Described inner panel surface layer is made up of aluminium foil。
Described outside plate surface layer is made up of color steel。
The resonant frequency of described foamed aluminium board is 4000Hz, and porosity is more than 90%, and aperture is 3～7mm, and thickness is 20～40mm。
The density of described foamed aluminium board is 0.2～1.2g/cm3, attraction coefficient is 0.8～1.0, and heat conductivity is 0.3～1W/m2·k。
Described aerogel blanket heat conductivity < 0.018W/m at 25 DEG C2·k。
Compared with prior art, this utility model has following useful technique effect:
The tube wall of noise-reduction energy-saving airduct disclosed in this utility model is integrally fixed by inner panel surface layer, sound absorbing layer, heat-insulation layer and outside plate surface layer from inside to outside successively。Wherein, sound absorbing layer is made up of foamed aluminium board；Heat-insulation layer is made up of aerogel blanket。First, instead of the glass fibre in conventional composite airduct and phenol formaldehyde foam with foamed aluminium board, decrease the use of glass fibre, reduce the infringement that the use of glass fiber composite air duct brings to health, and avoid the use of phenol formaldehyde foam, to the harm that human body and environment bring。Second, due in foamed aluminium board containing substantial amounts of pore, after sound wave enters foamed aluminium board, inside pore, there is multiple reflections on the one hand, because of interfering and consume part acoustic energy between incident acoustic wave and reflection sound wave；On the other hand due in pore medium occur compression to uphold deformation at sound wave to cause the friction of medium and hole wall, make part acoustic energy turn to heat energy and consume；Furthermore, sound wave consumption part acoustic energy is also returned in the vibration of the metallic matrix caused。Therefore, this airduct has good sound-absorbent。Work as ventilation, when air conditioning system is run, blower fan and air conditioning unit pass to that noise that airduct and air-flow produce at wind Bottomhole pressure is most of to be absorbed by this kind of noise reduction air pipe。This airduct is a trumpet type silencer inherently, it is not necessary to arrange the noise elimination accessory of sound proof housing and bend muffler etc again。3rd, heat-insulation layer aerogel blanket is with aerosil for material of main part, with the flexible heat-insulating felt that glass fibre cotton or preoxidized fiber felt are composited, its heat conductivity is 3～8 times of traditional material, good heat-insulation effect, required insulation thickness is only the part of traditional material, and service life was up to 20 years。
Further, owing to the density of sound absorbing layer foamed aluminium board is 0.2～1.2g/cm3, intensity is up to several MPa orders of magnitude, and nontoxic and hydroscopicity is zero；Heat-insulation layer aerogel blanket is definitely hydrophobic, hydrophobic rate >=99.5%。So this noise reduction air pipe is nontoxic, there is energy-conservation, lightweight, protection against the tide, constitutionally stable feature。
Further, inner panel surface layer is made up of aluminium foil, it is ensured that pumped (conveying) medium health, it is to avoid secondary pollution, and internal layer is without condensing water, non-corrosive。
Accompanying drawing explanation
Fig. 1 is noise-reduction energy-saving air duct structure schematic diagram of the present utility model；
Fig. 2 is this utility model noise reduction air pipe tube wall profile。
Wherein: 1 is inner panel surface layer；2 is sound absorbing layer；3 is heat-insulation layer；4 is outside plate surface layer。
Detailed description of the invention
Below in conjunction with accompanying drawing, this utility model is described in further detail:
Referring to Fig. 1 and Fig. 2, noise-reduction energy-saving airduct of the present utility model, the tube wall of this energy-conservation airduct is formed by fireproof bonding agent bonding is fixing by inner panel surface layer 1, sound absorbing layer 2, heat-insulation layer 3 and outside plate surface layer 4 from inside to outside successively；Wherein, sound absorbing layer 2 is made up of foamed aluminium board；Heat-insulation layer 3 is made up of aerogel blanket。Inner panel surface layer 1 is made up of aluminium foil, and outside plate surface layer 4 is made up of color steel。
Sound absorbing layer 2 material is foamed aluminium board, and its resonant frequency is at 4000Hz, and aperture is 3～7mm, and porosity is more than 90%, and thickness is 20～40mm, and attraction coefficient is 0.8～1.0。Act primarily as sound absorption。
Heat-insulation layer 3 is aerogel blanket, and it is heat conductivity < 0.018W/ (m in 25 DEG C of environment2K), insulation effect is acted primarily as。
Noise-reduction energy-saving airduct main advantage of the present utility model embodies as follows:
(1) sqouynd absorption lowering noise performance
Owing to middle foamed aluminium board contains substantial amounts of pore, after sound wave enters foam metal, inside hole, there is multiple reflections on the one hand, because of interfering and consume part acoustic energy between incident acoustic wave and reflection sound wave；On the other hand due in hole medium occur compression to uphold deformation at sound wave to cause the friction of medium and hole wall, make part acoustic energy turn to heat energy and consume；Furthermore, sound wave consumption part acoustic energy is also returned in the vibration of the metallic matrix caused。Its resonant frequency is at 4000Hz, and aperture is 3～7mm, and porosity is 90%, and thickness is 30mm, and attraction coefficient is about 0.9, and therefore, this airduct has good sound-absorbent。Work as ventilation, when air conditioning system is run, blower fan and air conditioning unit pass to that noise that airduct and air-flow produce at wind Bottomhole pressure is most of to be absorbed by this kind of noise reduction air pipe。This device is a trumpet type silencer inherently, it is not necessary to arrange the noise elimination accessory of sound proof housing and bend muffler etc again。
(2) fire protecting performance
This noise reduction air pipe is by inner panel surface layer aluminium foil, sound absorbing layer foamed aluminium, heat-insulation layer is aerogel blanket, outer coversheet is that high temperature baking vanish color steel is consisted of fire resistant adhesive bonding, and owing to the refractory temperature of foamed aluminium is up to 800 DEG C, the use temperature of aerogel blanket is-200～1000 DEG C, fire-protection rating is A1 level, and the use temperature of glass fiber composite air duct is up to 121 DEG C, metlbond compound air pipe uses temperature to be-60 DEG C～150 DEG C, has fire protecting performance better compared with tradition airduct this utility model。
(3) heat-insulating property
Heat-insulation layer is aerogel blanket, and it is heat conductivity < 0.018W/ (m in 25 DEG C of environment2K), it is 3～8 times of traditional material；Reaching equal effect of heat insulation, required insulation thickness is only the part of traditional material, and service life was up to 20 years；And sound absorbing layer foamed aluminium also has good heat-proof quality, the heat conductivity of foamed aluminium is only 0.3～1W/ (m2K), so further increase the heat-proof quality that airduct is overall, compare tradition airduct, there is heat-insulating property better, more decrease and make air-flow thermal loss in flow process, energy-conserving and environment-protective in airduct。
(4) owing to the density of sound absorbing layer foamed aluminium is 0.2-1.2g/cm3, intensity is up to several MPa orders of magnitude, and nontoxic and hydroscopicity is zero；Heat-insulation layer aerogel blanket is definitely hydrophobic, hydrophobic rate >=99.5%。So this noise reduction air pipe is nontoxic, energy-conservation, lightweight, protection against the tide, constitutionally stable feature。
(5) and sound-absorbing material foamed aluminium of the present utility model instead of the glass fibre in conventional composite airduct and phenol formaldehyde foam, decrease the use of glass fibre, reduce the infringement that the use of glass fiber composite air duct brings to health, and avoid the use of phenol formaldehyde foam, to the harm that human body and environment bring。
(6) it is made without on-the-spot heat preservation construction during this utility model construction, therefore need not reserve construction space, such that it is able to save the space installed, reduce the floor height of building。
Claims (5)
1. a noise-reduction energy-saving airduct, it is characterised in that the tube wall of this energy-conservation airduct is formed by inner panel surface layer (1), sound absorbing layer (2), heat-insulation layer (3) and outside plate surface layer (4) are fixing from inside to outside successively；Wherein, sound absorbing layer (2) is made up of foamed aluminium board；Heat-insulation layer (3) is made up of aerogel blanket。
2. noise-reduction energy-saving airduct according to claim 1, it is characterised in that inner panel surface layer (1), sound absorbing layer (2), heat-insulation layer (3) and outside plate surface layer (4) are formed by fireproof bonding agent bonding。
3. noise-reduction energy-saving airduct according to claim 1, it is characterised in that described inner panel surface layer (1) is made up of aluminium foil。
4. noise-reduction energy-saving airduct according to claim 1, it is characterised in that described outside plate surface layer (4) is made up of color steel。
5. noise-reduction energy-saving airduct according to claim 1, it is characterised in that the porosity of described foamed aluminium board is more than 90%, and aperture is 3～7mm, and thickness is 20～40mm。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521068824.9U CN205331629U (en) | 2015-12-19 | 2015-12-19 | Energy -conserving tuber pipe of making an uproar falls |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521068824.9U CN205331629U (en) | 2015-12-19 | 2015-12-19 | Energy -conserving tuber pipe of making an uproar falls |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205331629U true CN205331629U (en) | 2016-06-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521068824.9U Expired - Fee Related CN205331629U (en) | 2015-12-19 | 2015-12-19 | Energy -conserving tuber pipe of making an uproar falls |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205331629U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108501399A (en) * | 2018-03-26 | 2018-09-07 | 常州轻工职业技术学院 | Railway vehicle air conditioner wind channel tube and preparation method thereof |
| CN114791057A (en) * | 2022-04-29 | 2022-07-26 | 江苏徐工工程机械研究院有限公司 | Composite multilayer pipe and preparation method thereof |
-
2015
- 2015-12-19 CN CN201521068824.9U patent/CN205331629U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108501399A (en) * | 2018-03-26 | 2018-09-07 | 常州轻工职业技术学院 | Railway vehicle air conditioner wind channel tube and preparation method thereof |
| CN114791057A (en) * | 2022-04-29 | 2022-07-26 | 江苏徐工工程机械研究院有限公司 | Composite multilayer pipe and preparation method thereof |
| CN114791057B (en) * | 2022-04-29 | 2023-08-04 | 江苏徐工工程机械研究院有限公司 | Composite multilayer pipe and preparation method thereof |
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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: 20160622 Termination date: 20181219 |
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| CF01 | Termination of patent right due to non-payment of annual fee |