CN203532197U - Sound elimination plate of resistive plate type sound eliminator - Google Patents
Sound elimination plate of resistive plate type sound eliminator Download PDFInfo
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- CN203532197U CN203532197U CN201320634173.XU CN201320634173U CN203532197U CN 203532197 U CN203532197 U CN 203532197U CN 201320634173 U CN201320634173 U CN 201320634173U CN 203532197 U CN203532197 U CN 203532197U
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- sound
- resistive
- plate
- anechoic sheet
- resistive plate
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- 230000008030 elimination Effects 0.000 title abstract 9
- 238000003379 elimination reaction Methods 0.000 title abstract 9
- 239000011491 glass wool Substances 0.000 claims abstract description 23
- 239000000463 material Substances 0.000 claims abstract description 22
- 230000003584 silencer Effects 0.000 claims description 51
- 239000011358 absorbing material Substances 0.000 claims description 37
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 14
- 229910052742 iron Inorganic materials 0.000 claims description 7
- 239000002184 metal Substances 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 229910001335 Galvanized steel Inorganic materials 0.000 claims description 3
- 239000000835 fiber Substances 0.000 claims description 3
- 239000008397 galvanized steel Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 28
- 230000005484 gravity Effects 0.000 abstract description 8
- 238000010521 absorption reaction Methods 0.000 abstract 4
- 230000003014 reinforcing effect Effects 0.000 abstract 4
- 230000009471 action Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 4
- 230000030279 gene silencing Effects 0.000 description 3
- 238000004364 calculation method Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000004826 seaming Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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- Soundproofing, Sound Blocking, And Sound Damping (AREA)
- Building Environments (AREA)
Abstract
The utility model discloses a sound elimination plate of a resistive plate type sound eliminator, and belongs to the field of sound eliminators. The sound elimination plate is used for solving the problems that a sound absorption material of a sound elimination plate of an existing resistive plate type sound eliminator sinks under the effect of gravity and is not uniform in density, and therefore the sound elimination effect is unstable. According to the technical scheme, the sound elimination plate of the resistive plate type sound eliminator comprises a shell, the sound absorption material and at least one reinforcing component, wherein the inner cavity of the shell is filled with the sound absorption material, the shell is composed of perforated plates, end plates and wedges, the reinforcing component is arranged in the inner cavity of the shell, the two ends of the reinforcing component are fixedly connected with the perforated plates on the two sides of the reinforcing component respectively, and the sound absorption material is centrifugal glass wool of which the density is 48kg/m<3>. By the adoption of the sound elimination plate of the resistive plate type sound eliminator, stability of the sound elimination effect of the resistive plate type sound eliminator can be improved, and sound elimination performance of the resistive plate type sound eliminator can be enhanced.
Description
Technical field
The utility model relates to silencing apparatus technical field, specifically a kind of anechoic sheet of resistive plate silencer.
Background technique
Silencing apparatus is to stop sound transmission and allow air-flow to pass through, thereby eliminates the important tool of air power noise.Silencing apparatus is generally arranged on aerodynamic force equipment, such as on the air-flow path of blower, air compressor etc. or in air inlet, vent systems.Current more common resistive plate silencer, during assembling, a plurality of parallel anechoic sheet a tools are at regular intervals to be fixedly installed in resistive plate silencer housing b inner chamber, and resistive plate silencer is fixedly connected with ventiduct system.During use, as shown in Figure 1, between every two adjacent anechoic sheet a, form a long and narrow air-flow path.According to national building standard design atlas regulation, the inner sound-absorbing material of filling of anechoic sheet a is that density is 32kg/m
3centrifugally glass-wool.Yet, resistive plate silencer is in long using process, sound-absorbing material stack in the vertical anechoic sheet a arranging is highly larger, sound-absorbing material can sink along with the effect of self gravitation, especially the sound-absorbing material that is positioned at anechoic sheet a bottom can be extruded distortion, thereby cause sound-absorbing material skewness in anechoic sheet a, affect soundproof effect.Therefore,, for guaranteeing the stability of resistive plate silencer soundproof effect, need the anechoic sheet structure of improving resistive plate silencer badly.
Model utility content
The purpose of this utility model is to provide a kind of anechoic sheet of resistive plate silencer, for the sound-absorbing material that solves existing resistive plate silencer anechoic sheet, because of the Action of Gravity Field Density inhomogeneity that sinks, causes the unsettled problem of soundproof effect.For solving the problems of the technologies described above, the anechoic sheet of the resistive plate silencer that the utility model provides, soundproof effect is stable.
To achieve these goals, the technical solution of the utility model is:
A kind of anechoic sheet of resistive plate silencer, comprise a housing and the sound-absorbing material that is filled in described housing inner chamber, described housing consists of perforated plate, end plate and wedge, also comprise at least one strenthening member that is arranged at described housing inner chamber, the two ends of described strenthening member are fixedly connected with the described perforated plate that is positioned at its both sides respectively.
Preferably, described strenthening member and the described perforated plate shape α that has angle, the scope of described angle α is
0＜α≤90°。
Preferably, described strenthening member is made by galvanized metal sheet material or galvanized metal net.
Preferably, described strenthening member is made by galvanized sheet iron material.
Preferably, described sound-absorbing material is centrifugally glass-wool, and the density of described centrifugally glass-wool is 48kg/m
3, the fiber diameter of described centrifugally glass-wool is 5 microns～6 microns.
Preferably, described perforated plate is made by galvanized steel plain sheet material.
Preferably, perforation Shuai≤20% of described perforated plate.
Preferably, the galvanized sheet iron material that described end plate and described wedge are 0.6 millimeter by thickness is made.
Compared with prior art, technique effect of the present utility model is:
One, the anechoic sheet of resistive plate silencer of the present utility model, because anechoic sheet is vertically to install, the sound-absorbing material of anechoic sheet inside can sink because of Action of Gravity Field, by being fixedly connected with at least one strenthening member with perforated plate at anechoic sheet housing inner chamber, the sound-absorbing material of support anechoic sheet inside better, the sound-absorbing material that prevents anechoic sheet inside sinks to causing skewness because of Action of Gravity Field, thereby guarantees the stability of resistive plate silencer soundproof effect; And at least one strenthening member that is fixedly connected with perforated plate of anechoic sheet inner chamber, can also prevent the perforated plate distortion of anechoic sheet both sides, thereby further strengthen the stability of resistive plate silencer soundproof effect.
Two, in the anechoic sheet of resistive plate silencer of the present utility model, adopting density is 48kg/m
3centrifugally glass-wool as sound-absorbing material, with density be 32kg/m
3centrifugally glass-wool compare, density is 48kg/m
3centrifugally glass-wool there is higher acoustic absorptivity, thereby employing density is 48kg/m
3centrifugally glass-wool as the anechoic sheet of sound-absorbing material, improved the soundproof effect of resistive plate silencer, improved the acoustic attenuation performance of resistive plate silencer.
Accompanying drawing explanation
Fig. 1 is the structural representation of existing resistive plate silencer;
Fig. 2 is the plan view of anechoic sheet of the utility model one embodiment's resistive plate silencer;
Fig. 3 is the A-A sectional drawing of anechoic sheet of the utility model one embodiment's resistive plate silencer;
Fig. 4 is the B-B sectional drawing of anechoic sheet of the utility model one embodiment's resistive plate silencer.
Embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described, preferred embodiment described herein is only for description and interpretation the utility model, and is not used in restriction the utility model.It should be noted that, accompanying drawing adopts the form of simplifying very much and uses non-ratio accurately, only in order to convenient, aid illustration the utility model embodiment's object lucidly.
As Fig. 2, Fig. 3 and Fig. 4 show a kind of mode of execution of the anechoic sheet of the utility model resistive plate silencer, a kind of anechoic sheet, comprise a housing and the sound-absorbing material 4 that is filled in housing inner chamber, housing consists of perforated plate 1, wedge 2 and end plate 3, also comprise that one is arranged at the strenthening member 5 of described housing inner chamber, the two ends of strenthening member 5 are fixedly connected with the perforated plate 1 that is positioned at its both sides respectively.
Inventor finds, along with the resistive plate silencer prolongation of service time, sound-absorbing material stack in the vertical anechoic sheet arranging is highly larger, the inner sound-absorbing material of filling of anechoic sheet can sink because of Action of Gravity Field, thereby cause sound-absorbing material skewness, cause the soundproof effect of resistive plate silencer unstable.Therefore, inventor arranges at least one strenthening member at the anechoic sheet housing inner chamber of resistive plate silencer, the unsettled problem of soundproof effect causing because of the sound-absorbing material Density inhomogeneity of anechoic sheet in order to solve existing resistive plate silencer.As shown in Figure 3, in the present embodiment, strenthening member 5 is made by galvanized metal sheet material or galvanized metal net, and its thickness is according to actual conditions adjustment.Preferred, described strenthening member 5 is made by galvanized sheet iron material, and the thickness of strenthening member 5 is 0.5 millimeter.Particularly, the two ends of strenthening member 5 are fixing with perforated plate 1 riveted joint that is positioned at its both sides respectively, strenthening member 5 and the perforated plate 1 shape α that has angle, and the scope of angle α is: 0 < α≤90 °.Preferred, angle α is 90 °, and strenthening member 5 is vertical with perforated plate 1, and now, strenthening member consumptive material is few, and sound-absorbing material is more evenly distributed under the effect of strenthening member, thereby guarantees the stability of resistive plate silencer soundproof effect.Certainly, the Calculation and Analysis of Force of sinking according to the Action of Gravity Field of sound-absorbing material in anechoic sheet, in conjunction with as installed situation, the quantity of strenthening member and the strenthening member mounting point in anechoic sheet, the utility model is not restricted this.
The anechoic sheet of resistive plate silencer of the present utility model, because resistive plate silencer is in long using process, sound-absorbing material stack in the vertical anechoic sheet arranging is highly larger, sound-absorbing material can sink along with the effect of self gravitation, especially the sound-absorbing material that is positioned at anechoic sheet bottom can be extruded distortion, thereby cause sound-absorbing material skewness in anechoic sheet, affect soundproof effect.Therefore, by being fixedly connected with at least one strenthening member with perforated plate at anechoic sheet housing inner chamber, the sound-absorbing material of support anechoic sheet inside better, the sound-absorbing material that prevents anechoic sheet inside sinks to causing skewness because of Action of Gravity Field, thereby guarantees the stability of resistive plate silencer soundproof effect.In addition, at least one strenthening member that anechoic sheet housing inner chamber is fixedly connected with perforated plate, can also prevent the perforated plate distortion of anechoic sheet, thereby further strengthens the stability of resistive plate silencer soundproof effect.
In the utility model, it is 48kg/m that sound-absorbing material 4 is selected density
3centrifugally glass-wool, the fiber diameter of described centrifugally glass-wool is 5 microns～6 microns.Centrifugally glass-wool belongs to sound-absorbing porous material, has good sound absorbing capabilities.The principal element that affects centrifugally glass-wool sound absorbing capabilities is thickness, density and air flow resistance etc.The ratio of material both sides air pressure and air velocity when air flow resistance is unit thickness, air flow resistance is to affect the most important factor of centrifugally glass-wool sound absorbing capabilities.Flow resistance is too little, and illustrative material is sparse, and air vibration easily passes, and sound absorbing capabilities declines; Flow resistance is too large, and illustrative material is closely knit, and air vibration is difficult to import into, and sound absorbing capabilities also declines.For centrifugally glass-wool, there is best flow resistance in sound absorbing capabilities.In Practical Project, measure air flow resistance more difficult, but can be by thickness and density rough calculation and control.The one, along with thickness increases, medium and low frequency acoustic absorptivity increases significantly, but high frequency changes not quite; The 2nd, thickness is constant, and density increases, and medium and low frequency acoustic absorptivity also increases; But when density is increased to a certain degree, it is closely knit that material becomes, and flow resistance is greater than best flow resistance, and acoustic absorptivity declines on the contrary.Inventor finds, with density be 32kg/m
3centrifugally glass-wool compare, density is 48kg/m
3centrifugally glass-wool there is higher acoustic absorptivity, thereby there is better soundproof effect.Therefore adopting density is 48kg/m
3centrifugally glass-wool as the anechoic sheet of sound-absorbing material, can improve the soundproof effect of resistive plate silencer.
Continuation is with reference to figure 2, and perforated plate 1 is made by galvanized steel plain sheet material, perforation rate≤20% of perforated plate 1.Preferred, the thickness of perforated plate 1 is 0.5 millimeter.
Continuation referring to figs. 2 and 3, end plate 3 is made by galvanized sheet iron material, the thickness of end plate 3 is 0.6 millimeter, end plate 3 is fixedly connected with perforated plate 1.Preferred, end plate 3 adopts joint angle seaming form to be fixedly connected with perforated plate 1.
Continuation is with reference to figure 2 and Fig. 4, and wedge 2 is made by galvanized sheet iron material, and the thickness of wedge 2 is 0.6 millimeter, and wedge 2 is fixedly connected with perforated plate 1.Preferred, wedge 2 is fixedly connected with by riveted joint with perforated plate 1.
Particularly, during assembling, a plurality of parallel anechoic sheet a tools are at regular intervals to be fixedly installed in resistive plate silencer housing b inner chamber, and resistive plate silencer is fixedly connected with ventiduct system.Preferred, anechoic sheet a and the riveted joint of suppressor case b inner chamber.During use, as shown in Figure 1, between every two adjacent anechoic sheet a, form a long and narrow air-flow path.Resistive plate silencer is in long using process, sound-absorbing material stack in the vertical anechoic sheet a arranging is highly larger, sound-absorbing material can sink along with the effect of self gravitation, especially the sound-absorbing material that is positioned at anechoic sheet a bottom can be extruded distortion, thereby cause sound-absorbing material skewness in anechoic sheet a, affect soundproof effect.Therefore, at the anechoic sheet inner chamber of resistive plate silencer, at least one strenthening member being fixedly connected with perforated plate is set, in order to solve sound-absorbing material skewness, causes the unsettled problem of soundproof effect.Adopt the resistive plate silencer of said structure to be fixedly connected with ventiduct system, anechoic sheet a is vertically installed in ventilation duct, and anechoic sheet both sides are air-flow paths.The noise producing during blower fan work passes the air-flow path of anechoic sheet both sides, the filtration of the anechoic sheet of process air-flow path both sides, and its decibel obtains the reduction of very big degree, thus the impact of the noise producing in the time of can effectively reducing blower fan work on surrounding enviroment.
The anechoic sheet of the resistive plate silencer that the utility model provides, is provided with at least one strenthening member being fixedly connected with perforated plate in its housing inner chamber.Under the protection of strenthening member, the sound-absorbing material of anechoic sheet inside can not sink because of Action of Gravity Field, thereby guaranteeing that resistive plate silencer has stablizes lasting soundproof effect.In addition, density is 48kg/m
3centrifugally glass-wool there is higher acoustic absorptivity, take density as 48kg/m
3centrifugally glass-wool as sound-absorbing material, there is better soundproof effect.Visible, the anechoic sheet of the resistive plate silencer that the utility model provides can not only improve the stability of resistive plate silencer soundproof effect, can also strengthen the acoustic attenuation performance of resistive plate silencer.
Foregoing description is only the description to the utility model preferred embodiment; the not any restriction to the utility model scope; any change, modification that the those of ordinary skill in the utility model field is done according to above-mentioned disclosure, all belong to the protection domain of claims.
Claims (8)
1. the anechoic sheet of a resistive plate silencer, comprise a housing and the sound-absorbing material that is filled in described housing inner chamber, described housing consists of perforated plate, end plate and wedge, it is characterized in that: also comprise at least one strenthening member that is arranged at described housing inner chamber, the two ends of described strenthening member are fixedly connected with the described perforated plate that is positioned at its both sides respectively.
2. the anechoic sheet of resistive plate silencer as claimed in claim 1, is characterized in that: described strenthening member and the described perforated plate shape α that has angle, the scope of described angle α is 0 < α≤90 °.
3. the anechoic sheet of resistive plate silencer as claimed in claim 1, is characterized in that: described strenthening member is made by galvanized metal sheet material or galvanized metal net.
4. the anechoic sheet of resistive plate silencer as claimed in claim 3, is characterized in that: described strenthening member is made by galvanized sheet iron material.
5. the anechoic sheet of the resistive plate silencer as described in claim as arbitrary in claim 1 to 4, is characterized in that: described sound-absorbing material is centrifugally glass-wool, and the density of described centrifugally glass-wool is 48kg/m
3, the fiber diameter of described centrifugally glass-wool is 5 microns～6 microns.
6. the anechoic sheet of resistive plate silencer as claimed in claim 5, is characterized in that: described perforated plate is made by galvanized steel plain sheet material.
7. the anechoic sheet of resistive plate silencer as claimed in claim 6, is characterized in that: perforation Shuai≤20% of described perforated plate.
8. the anechoic sheet of resistive plate silencer as claimed in claim 5, is characterized in that: the galvanized sheet iron material that described end plate and described wedge are 0.6 millimeter by thickness is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320634173.XU CN203532197U (en) | 2013-10-15 | 2013-10-15 | Sound elimination plate of resistive plate type sound eliminator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320634173.XU CN203532197U (en) | 2013-10-15 | 2013-10-15 | Sound elimination plate of resistive plate type sound eliminator |
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| Publication Number | Publication Date |
|---|---|
| CN203532197U true CN203532197U (en) | 2014-04-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320634173.XU Expired - Lifetime CN203532197U (en) | 2013-10-15 | 2013-10-15 | Sound elimination plate of resistive plate type sound eliminator |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104008748A (en) * | 2014-05-06 | 2014-08-27 | 北京绿创声学工程设计研究院有限公司 | Shuttle type sheet silencer |
| CN104538021A (en) * | 2014-11-21 | 2015-04-22 | 世纪良基投资集团有限公司 | Formaldehyde-free environment-friendly silencer |
-
2013
- 2013-10-15 CN CN201320634173.XU patent/CN203532197U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104008748A (en) * | 2014-05-06 | 2014-08-27 | 北京绿创声学工程设计研究院有限公司 | Shuttle type sheet silencer |
| CN104538021A (en) * | 2014-11-21 | 2015-04-22 | 世纪良基投资集团有限公司 | Formaldehyde-free environment-friendly silencer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140409 |
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| CX01 | Expiry of patent term |