CN202902331U - Noise absorption device of boiler and heating furnace - Google Patents
Noise absorption device of boiler and heating furnace Download PDFInfo
- Publication number
- CN202902331U CN202902331U CN2012205440860U CN201220544086U CN202902331U CN 202902331 U CN202902331 U CN 202902331U CN 2012205440860 U CN2012205440860 U CN 2012205440860U CN 201220544086 U CN201220544086 U CN 201220544086U CN 202902331 U CN202902331 U CN 202902331U
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- noise absorption
- boiler
- heating furnace
- layer
- absorbing layer
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Abstract
The utility model relates to a noise absorption device of a boiler and a heating furnace. The whole noise absorption device is covered outside the boiler and the heating furnace. The noise absorption device of the boiler and the heating furnace is divided into six layers from inside to outside, and the six layers are respectively a low and medium frequency noise absorption layer, a medium and high frequency noise absorption layer, a high frequency noise absorption layer, a low frequency noise absorption layer, a multiple-frequency noise absorption layer and a surface layer. The noise absorption device of the boiler and the heating furnace has the advantages of being convenient to dismantle, easy to install and free from influence on maintenance, operation, inspection and observation of a burner. By using a novel aluminum alloy noise absorption hole plate to be used as an inner protective panel, the noise absorption device of the boiler and the heating furnace further has the advantages of being good in corrosion resistance, strong in durability and good in noise absorption effect.
Description
Technical field
The utility model relates to a kind of denoising device, relates in particular to a kind of boiler, heating furnace noise absorption device that is applied on the heaters such as boiler, heating furnace.
Background technology
Boiler, heating furnace can produce great vibrations in the course of the work, and follow larger noise, be in for a long time that this kind highly made an uproar, in the hot environment to the human body infringement greatly.In the prior art, certain isolation, noise reduction layer can be installed at the boiler casing place, but its noise reduction is unsatisfactory, and it is in for a long time in the high-temperature baking, service life is shorter, often needs blowing out to safeguard, impact is produced.
Summary of the invention
The purpose of this utility model is to propose a kind of noise reduction, heat-resisting, corrosion resistance and good, the boiler of long service life, heating furnace noise absorption device.
The purpose of this utility model is achieved in that boiler, heating furnace noise absorption device integral body are wrapped in outside boiler, the heating furnace, it is divided into six layers from the inside to the outside, is respectively medium and low frequency sound absorbing layer, medium-high frequency sound absorbing layer, high frequency sound absorbing layer, low-frequency sound-absorbing layer, multifrequency sound absorbing layer and top layer.
The utility model convenient disassembly is easily installed, and does not affect maintenance, operation, inspection and the observation of burner.Adopt novel aluminum alloy sound absorption orifice plate to do interior protection slab, have preferably corrosion resistance, durability is strong, has again preferably acoustically effective.
Description of drawings: concrete structure of the present utility model is provided by following drawings and Examples:
Fig. 1 is boiler, heating furnace noise absorption apparatus structure schematic diagram.
Legend: 1, medium and low frequency sound absorbing layer, 2, the medium-high frequency sound absorbing layer, 3, the high frequency sound absorbing layer, 4, the low-frequency sound-absorbing layer, 5, the multifrequency sound absorbing layer, 6, the top layer.
The specific embodiment:
The utility model is not subjected to the restriction of following embodiment, can determine concrete embodiment according to the technical solution of the utility model and actual conditions.
Embodiment: as shown in Figure 1, boiler, heating furnace noise absorption device integral body are wrapped in outside boiler, the heating furnace, it is divided into six layers from the inside to the outside, is respectively medium and low frequency sound absorbing layer 1, medium-high frequency sound absorbing layer 2, high frequency sound absorbing layer 3, low-frequency sound-absorbing layer 4, multifrequency sound absorbing layer 5 and top layer 6.
Medium and low frequency sound absorbing layer 1 adopts vestibule plate sound-absorbing material, it is comprised of the aluminium orifice plate, paste the micropore sound-absorbing material thereafter, utilize keel to be combined into cavity not of uniform size, keel are installed between aluminium orifice plate and the micropore sound-absorbing material, thereby consist of cavity not of uniform size, medium and low frequency sound absorbing layer 1 consists of the absorbed layer of the medium and low frequency sound wave of relative broad range.
Medium-high frequency sound absorbing layer 2 adopts glass fibre, and it is made of the layer structure of internal memory hole fiber interweaving.Sound wave makes between the fiber phase mutual friction and makes air molecule constantly clash into fabric, makes part acoustic energy be converted into the heat energy of fabric and is absorbed.Be mainly used in the absorption of medium-high frequency sound wave.
High frequency sound absorbing layer 3 adopts porous sound-absorbing material, and this layer inside exists a large amount of micro-pores or cavity, communicates with each other.Cause during sound wave incident air molecule vibration to make air molecule constantly clash into material molecule, thereby part acoustic energy is converted into the heat energy of material and is absorbed, be used for the absorption of high frequency sound wave.
Low-frequency sound-absorbing layer 4 adopts the thin plate sound-absorbing material, and this layer is comprised of rubber, and this layer has stepped construction, and each interlayer has air cavity.Sound wave effect forms resonance in cavity, the continuous impact cavity wall of the air molecule chamber in and generating heat, and most of acoustic energy is consumed, for the absorption of low-frequency range sound wave.
Multifrequency sound absorbing layer 5 adopts the moulding acoustic board, the sheet forming that this layer processed by mineral wool, cellucotton, and the sound absorption frequency range is wider.
Steel plate is used on top layer 6.
By the absorption of medium and low frequency sound absorbing layer 1, medium-high frequency sound absorbing layer 2, high frequency sound absorbing layer 3, low-frequency sound-absorbing layer 4,5 pairs of each frequency range sound waves of multifrequency sound absorbing layer, finish the purpose except the sound noise reduction.
Claims (6)
1. a boiler, heating furnace noise absorption device, integral body is wrapped in outside boiler, the heating furnace, it is characterized in that: it is divided into six layers from the inside to the outside, is respectively medium and low frequency sound absorbing layer, medium-high frequency sound absorbing layer, high frequency sound absorbing layer, low-frequency sound-absorbing layer, multifrequency sound absorbing layer and top layer.
2. boiler as claimed in claim 1, heating furnace noise absorption device, it is characterized in that: the medium and low frequency sound absorbing layer adopts vestibule plate sound-absorbing material, it is comprised of the aluminium orifice plate, paste the micropore sound-absorbing material thereafter, keel are installed between aluminium orifice plate and the micropore sound-absorbing material, thereby consist of cavity not of uniform size, the medium and low frequency sound absorbing layer consists of the absorbed layer of medium and low frequency sound wave.
3. boiler as claimed in claim 1, heating furnace noise absorption device is characterized in that: the medium-high frequency sound absorbing layer adopts glass fibre, and it is made of the layer structure of internal memory hole fiber interweaving.
4. boiler as claimed in claim 1, heating furnace noise absorption device is characterized in that: the high frequency sound absorbing layer adopts porous sound-absorbing material, and this layer inside exists a large amount of micro-pores or cavity, communicates with each other.
5. boiler as claimed in claim 1, heating furnace noise absorption device is characterized in that: the low-frequency sound-absorbing layer adopts the thin plate sound-absorbing material, and this layer is comprised of rubber, and this layer has stepped construction, and each interlayer has air cavity.
6. boiler as claimed in claim 1, heating furnace noise absorption device is characterized in that: multifrequency sound absorbing layer employing moulding acoustic board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012205440860U CN202902331U (en) | 2012-10-23 | 2012-10-23 | Noise absorption device of boiler and heating furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012205440860U CN202902331U (en) | 2012-10-23 | 2012-10-23 | Noise absorption device of boiler and heating furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202902331U true CN202902331U (en) | 2013-04-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012205440860U Expired - Fee Related CN202902331U (en) | 2012-10-23 | 2012-10-23 | Noise absorption device of boiler and heating furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202902331U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106838869A (en) * | 2017-03-08 | 2017-06-13 | 华电重工股份有限公司 | A kind of installation method of waste heat boiler |
-
2012
- 2012-10-23 CN CN2012205440860U patent/CN202902331U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106838869A (en) * | 2017-03-08 | 2017-06-13 | 华电重工股份有限公司 | A kind of installation method of waste heat boiler |
| CN106838869B (en) * | 2017-03-08 | 2020-04-17 | 华电重工股份有限公司 | Installation method of waste heat boiler |
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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: 20130424 Termination date: 20181023 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |