CN103377650B - Quieter - Google Patents
Quieter Download PDFInfo
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- CN103377650B CN103377650B CN201210120405.XA CN201210120405A CN103377650B CN 103377650 B CN103377650 B CN 103377650B CN 201210120405 A CN201210120405 A CN 201210120405A CN 103377650 B CN103377650 B CN 103377650B
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- expansion cavity
- sound absorption
- escape pipe
- draft tube
- sound
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Abstract
The invention provides a kind of quieter, comprise first order sound suppressor, first order sound suppressor comprises the first draft tube, intervalve, the first escape pipe and expansion cavity; Wherein, the first draft tube stretches to the n-th expansion cavity by the first expansion cavity through intermediate cavity; One end open is connected with noise source, and other end opening is connected with the n-th expansion cavity; Each intervalve is each passed through at least two expansion cavities, and its both ends open is connected with two expansion cavities respectively; First escape pipe stretches out from last expansion cavity through at least one expansion cavity, and its one end open is connected with expansion cavity, and other end opening is connected with air or next stage sound suppressor; The sidewall that first draft tube, intervalve and the first escape pipe stretch to intermediate cavity respectively offers air hole.Quieter provided by the invention, expands the noisy air-flow of band, achieves the reduction of noise, improve work and living environment.
Description
Technical field
The present invention relates to noise reduction technology, particularly relate to a kind of quieter.
Background technology
In the working site of coal seam probing, drilling equipment is made up of diesel engine, rig and hollander etc. usually.These equipment operationally, all can send strong noise.The noise of equipment not only affects the healthy of operator, also causes pollution to resident family's environment of surrounding simultaneously.
Summary of the invention
The invention provides a kind of quieter, to reduce noise pollution, improve work and living environment.
The invention provides a kind of quieter, wherein, comprise first order sound suppressor, described first order sound suppressor comprises the arranged side by side and mutually isolated expansion cavity of the first draft tube, one or more intervalve, the first escape pipe and two or more; Wherein,
Described first draft tube is passed through by the outside of the first expansion cavity and is stretched to the n-th expansion cavity; The one end open of described first draft tube is connected with noise source, and the other end opening of described first draft tube is connected with described n-th expansion cavity, wherein, and n >=2;
Each described intervalve is each passed through at least two expansion cavities, and the both ends open of described intervalve is connected with two expansion cavities respectively;
Described first escape pipe stretches out from last expansion cavity through at least one expansion cavity; The one end open of described first escape pipe is connected with expansion cavity, and the other end opening of described first escape pipe is connected with air or next stage sound suppressor;
The sidewall that described first draft tube, intervalve and the first escape pipe stretch to middle expansion cavity respectively offers air hole.
Quieter as above, wherein, preferably:
Described first draft tube stretches to last expansion cavity by the first expansion cavity through middle expansion cavity; The one end open of described first draft tube is connected with noise source, and the other end opening of described first draft tube is connected with last expansion cavity described;
Described intervalve stretches to last expansion cavity by described first expansion cavity through middle expansion cavity; The one end open of described intervalve is connected with described first expansion cavity, and the other end opening of described intervalve is connected with last expansion cavity described;
Described first escape pipe, is stretched out after last expansion cavity described through middle expansion cavity by the first expansion cavity; The one end open of described first escape pipe is connected with described first expansion cavity, and the other end opening of described first escape pipe is connected with air or next stage sound suppressor.
Quieter as above, wherein, preferably, also comprises second level sound suppressor, described second level sound suppressor comprise connect in turn the second draft tube, communicating pipe and the second escape pipe, wherein:
Described second draft tube is connected with described first escape pipe;
Described second escape pipe is connected with air or next stage sound suppressor;
The inwall of described communicating pipe is provided with sound absorption pad, described sound absorption pad is made up of acoustic absorbant.
Quieter as above, wherein, preferably:
Described first order sound suppressor is connected with described noise source by the first connecting pipe;
Described first order sound suppressor is connected with described second level sound suppressor by the second connecting pipe;
Described second level sound suppressor is connected with air by tail pipe.
Quieter as above, wherein, preferably, also comprises between sound insulation, comprises sound absorption sidewall and sound absorption ceiling between described sound insulation;
Described sound absorption ceiling is fixedly installed on the upper end of described sound absorption sidewall, and described sound absorption sidewall and described sound absorption ceiling are used for integrally closed and are located at outside the equipment of generation noise;
Described sound absorption sidewall and described sound absorption ceiling are formed by perforated plate, and described perforated plate arranged outside has sound absorption cotton.
Quieter provided by the invention, by arranging exhaust box, expanding the noisy air-flow of band and absorbing sound, achieving the reduction of noise, improve work and living environment.By arranging between sound insulation, further noise being isolated, improving work and living environment.
Accompanying drawing explanation
First order acoustic wave filter structure schematic diagram in the quieter that Fig. 1 provides for the embodiment of the present invention one.
Second level acoustic wave filter structure schematic diagram in the quieter that Fig. 2 provides for the embodiment of the present invention one.
Structural representation after two-stage sound suppressor in the quieter that Fig. 3 provides for the embodiment of the present invention one connects.
Noise isolation booth structure schematic diagram in the quieter that Fig. 4 provides for the embodiment of the present invention two.
Embodiment
Embodiment one
The embodiment of the present invention one provides a kind of quieter, and comprising first order sound suppressor, first order sound suppressor comprises the arranged side by side and mutually isolated expansion cavity of the first draft tube, intervalve, the first escape pipe and two or more; Wherein, the first draft tube is passed through by the outside of the first expansion cavity and is stretched to the n-th expansion cavity; The one end open of the first draft tube is connected with noise source, and other end opening is connected with the n-th expansion cavity, wherein, and n >=2; Each intervalve is each passed through at least two expansion cavities, and the both ends open of intervalve is connected with two expansion cavities respectively; First escape pipe stretches out from last expansion cavity through at least one expansion cavity; The one end open of described first escape pipe is connected with expansion cavity, and other end opening is connected with air or next stage sound suppressor; The sidewall that first draft tube, intervalve and the first escape pipe stretch to middle expansion cavity respectively offers air hole.
In the present embodiment, the structure of exhaust box makes the noisy air-flow of band expand along mazy trend, thus can reach the object of noise reduction.
Particularly, the first draft tube stretches to last expansion cavity by the first expansion cavity through middle expansion cavity; The one end open of the first draft tube is connected with noise source, and other end opening is connected with last expansion cavity; Intervalve stretches to last expansion cavity by the first expansion cavity through middle expansion cavity; The one end open of intervalve is connected with the first expansion cavity, and other end opening is connected with last expansion cavity; First escape pipe, is stretched out after last expansion cavity through middle expansion cavity by the first expansion cavity; The one end open of the first escape pipe is connected with the first expansion cavity, and other end opening is connected with air or next stage sound suppressor.
Particularly, the present embodiment with an intervalve and three expansion cavities for specific embodiment is described said structure, first order acoustic wave filter structure schematic diagram in the quieter that Fig. 1 provides for the embodiment of the present invention one, as shown in Figure 1, first order sound suppressor 1 comprises the first draft tube 8, intervalve 6, first escape pipe 7 and three arranged side by side and mutually isolated expansion cavities; Wherein, the first draft tube 8 stretches to the 3rd expansion cavity 5 by the first expansion cavity 2 through the second expansion cavity 3; The one end open of the first draft tube 8 is connected with noise source, and other end opening is connected with the 3rd expansion cavity 5; Intervalve 6 stretches to the 3rd expansion cavity 5 by the first expansion cavity 2 through the second expansion cavity 3; The one end open of intervalve 6 is connected with the first expansion cavity 2, and other end opening is connected with the 3rd expansion cavity 5; First escape pipe 7, is stretched out after the 3rd expansion cavity 5 through the second expansion cavity 3 by the first expansion cavity 2; The one end open of the first escape pipe 7 is connected with the first expansion cavity 2, and other end opening is connected with air or next stage sound suppressor; The sidewall that first draft tube 8 stretches to the second expansion cavity 3 offers air hole 4; The sidewall that intervalve 6 stretches to the second expansion cavity 3 offers air hole 4; The sidewall that first escape pipe 7 stretches to the second expansion cavity 3 offers air hole 4.
The noisy air-flow of band introduced from noise source enters into first order sound suppressor 1 from the first draft tube 8, after the mazy route of first order sound suppressor 1 inside experience, is discharged, reach the object reducing noise by the first escape pipe 7.Particularly, for air-flow branch road, after air-flow is entered by the first draft tube 8, a part is entered in the second expansion cavity 3 by air hole 4, and gas is expanded, noise reduction; Another part gas then enters the 3rd expansion cavity 5 by the first draft tube 8 other end opening, and gas is expanded, noise reduction; Gas in 3rd expansion cavity 5 enters into intervalve 6 by the opening extending into the intervalve 6 in the 3rd expansion cavity 5 again; The gas simultaneously entered in the second expansion cavity 3 through the air hole 4 of the first draft tube 8 enters in intervalve 6 by the air hole 4 on intervalve 6 again, gas continues flowing, what have enters into the first expansion cavity 2, what have enters in the first escape pipe 7 by the air hole 4 on the first escape pipe 7 again, thus form many branch roads, enter air eventually through the first escape pipe 7 or enter next stage sound suppressor, realize the reduction of noise.
On the basis of above-described embodiment, this quieter is also provided with second level sound suppressor 9 further, second level acoustic wave filter structure schematic diagram in the quieter that Fig. 2 provides for the embodiment of the present invention one, as shown in Figure 2, second level sound suppressor 9 comprise connect in turn the second draft tube 12, communicating pipe 10 and the second escape pipe 13, wherein, the second draft tube 12 is connected with the first escape pipe 7; Second escape pipe 13 is connected with air or next stage sound suppressor; The inwall of communicating pipe 10 is provided with sound absorption pad 11, sound absorption pad 11 is made up of acoustic absorbant.
Second level sound suppressor 9 forms a dissipative muffler, is with noisy air-flow to enter in communicating pipe 10 through the second draft tube 12, and the sound absorption pad 11 on communicating pipe 10 inwall absorbs sound, and can reduce noise further.
Structural representation after two-stage sound suppressor in the quieter that Fig. 3 provides for the embodiment of the present invention one connects, above-mentioned two sound suppressors can be connected by connecting pipe, and as shown in Figure 3, first order sound suppressor 1 is connected with noise source by the first connecting pipe 14; First order sound suppressor 1 is connected with second level sound suppressor 9 by the second connecting pipe 15; Second level sound suppressor 9 is connected with air by tail pipe 16.By the combination of two-stage exhaust box, make the better effects if of reduction noise, certainly, the number of exhaust box is not limited to two, can also be more, will not enumerate at this.Two-stage exhaust box combination time, the quantity of its draft tube and escape pipe is also not limited to one, also can many connect respectively.
The quieter that the embodiment of the present invention one provides, by arranging exhaust box, expanding the noisy air-flow of band and absorbing sound, achieving the reduction of noise, improve work and living environment.
Embodiment two
The embodiment of the present invention two provides a kind of quieter, it is on the basis of embodiment one, be provided with further between sound insulation, noise isolation booth structure schematic diagram in the quieter that Fig. 4 provides for the embodiment of the present invention two, sound absorption sidewall 17 and sound absorption ceiling 18 is comprised between sound insulation, the ceiling 18 that absorbs sound is fixedly installed on the upper end of sound absorption sidewall 17, and sound absorption sidewall 17 and sound absorption ceiling 18 are located at outside the equipment of generation noise for integrally closed; Above-mentioned sound absorption sidewall 17 and sound absorption ceiling 18 are formed by perforated plate, and perforated plate arranged outside has sound absorption cotton.In actual applications, the combined shaped of sound absorption sidewall 17 can be set as the case may be, such as, as shown in Figure 4, for four sides around square, but its shape is not limited to this, also can be set to circular or irregularly shaped, can the equipment established and produce noise be covered as long as meet after it is combined with sound absorption ceiling 18.
Above-mentioned quieter is set at drill site, the equipment such as such as diesel engine can be put into this quieter, the hole that noise wears long on orifice plate through, by the cotton decay of sound absorption, just can realize the isolation of noise.
Because probing equipment operationally can produce heat, above-mentioned sound absorption sidewall 17 can be set and at least comprise the ventilated walls 19 relatively ventilated for a pair, to realize the convection current of hot gas, realize ventilating.
Preferably, sound absorption sidewall 17 is also provided with soundproof door 20, when putting into or take out drilling equipment, realizes by opening this soundproof door 20, when equipment works, closing this soundproof door 20, realizing noise isolation.The material of soundproof door 20 can select general steel plate and the cotton common composition of sound absorption.
Further, conveniently the equipment of quieter inside is observed, view window 21 can be offered on sound absorption sidewall 17.
In actual applications, above-mentioned view window 21 is at least provided with double-deck white glass, and the cavity inward flange between white glass is filled with acoustic absorbant, and particularly, acoustic absorbant can include glass wool, rock wool, mineral wool etc.; The thickness of white glass is 6mm, and the thickness of cavity is 100mm, and the view window 21 of said structure is when closing, and acoustically effective is better.
Further, be fixedly installed rainproof top board 22 in sound absorption ceiling 18 upper end, rainproof top board 22 can copy the shape on roof to arrange, and is provided with landslide, rainwater is slided along landslide.The material of rainproof top board 22 can select color steel of the prior art and polyester waterproof coating.
The quieter that the embodiment of the present invention two provides, by arranging between sound insulation, is isolated noise further, improves work and living environment.
Last it is noted that above embodiment is only in order to illustrate technical scheme of the present invention, be not intended to limit; Although with reference to previous embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of various embodiments of the present invention technical scheme.
Claims (9)
1. a quieter, is characterized in that, comprises first order sound suppressor, and described first order sound suppressor comprises the arranged side by side and mutually isolated expansion cavity of the first draft tube, one or more intervalve, the first escape pipe and two or more; Wherein,
Described first draft tube is passed through by the outside of the first expansion cavity and is stretched to the n-th expansion cavity; The one end open of described first draft tube is connected with noise source, and the other end opening of described first draft tube is connected with described n-th expansion cavity, wherein, and n >=3;
Each described intervalve is each passed through at least two expansion cavities, and the both ends open of described intervalve is connected with two expansion cavities respectively;
Described first escape pipe stretches out from last expansion cavity through at least one expansion cavity; The one end open of described first escape pipe is connected with expansion cavity, and the other end opening of described first escape pipe is connected with next stage sound suppressor;
The sidewall that described first draft tube, intervalve and the first escape pipe stretch to middle expansion cavity respectively offers air hole;
Described noise-abatement equipment also comprises: second level sound suppressor, described second level sound suppressor comprise connect in turn the second draft tube, communicating pipe and the second escape pipe, wherein:
Described second draft tube is connected with described first escape pipe;
Described second escape pipe is connected with air or next stage sound suppressor;
The inwall of described communicating pipe is provided with sound absorption pad, described sound absorption pad is made up of acoustic absorbant.
2. quieter according to claim 1, is characterized in that:
Described first draft tube stretches to last expansion cavity by the first expansion cavity through middle expansion cavity; The one end open of described first draft tube is connected with noise source, and the other end opening of described first draft tube is connected with last expansion cavity described;
Described intervalve stretches to last expansion cavity by described first expansion cavity through middle expansion cavity; The one end open of described intervalve is connected with described first expansion cavity, and the other end opening of described intervalve is connected with last expansion cavity described;
Described first escape pipe, is stretched out after last expansion cavity described through middle expansion cavity by the first expansion cavity; The one end open of described first escape pipe is connected with described first expansion cavity, and the other end opening of described first escape pipe is connected with next stage sound suppressor.
3. quieter according to claim 1 and 2, is characterized in that:
Described first order sound suppressor is connected with described noise source by the first connecting pipe;
Described first order sound suppressor is connected with described second level sound suppressor by the second connecting pipe;
Described second level sound suppressor is connected with air by tail pipe.
4. quieter according to claim 1 and 2, is characterized in that, also comprises between sound insulation, comprises sound absorption sidewall and sound absorption ceiling between described sound insulation;
Described sound absorption ceiling is fixedly installed on the upper end of described sound absorption sidewall, and described sound absorption sidewall and described sound absorption ceiling are used for integrally closed and are located at outside the equipment of generation noise;
Described sound absorption sidewall and described sound absorption ceiling are formed by perforated plate, and described perforated plate arranged outside has sound absorption cotton.
5. quieter according to claim 4, is characterized in that: described sound absorption sidewall at least includes a pair ventilated walls relatively ventilated.
6. quieter according to claim 4, is characterized in that: described sound absorption sidewall is provided with soundproof door.
7. quieter according to claim 6, is characterized in that: described sound absorption sidewall also offers view window.
8. quieter according to claim 7, is characterized in that: described view window is at least provided with double-deck white glass, and the cavity inward flange between described white glass is filled with acoustic absorbant, and the thickness of described white glass is 6mm, and the thickness of described cavity is 100mm.
9. quieter according to claim 4, is characterized in that: described sound absorption ceiling upper end is fixedly installed rainproof top board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210120405.XA CN103377650B (en) | 2012-04-23 | 2012-04-23 | Quieter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210120405.XA CN103377650B (en) | 2012-04-23 | 2012-04-23 | Quieter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103377650A CN103377650A (en) | 2013-10-30 |
| CN103377650B true CN103377650B (en) | 2016-04-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210120405.XA Active CN103377650B (en) | 2012-04-23 | 2012-04-23 | Quieter |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104033426A (en) * | 2014-06-03 | 2014-09-10 | 齐宝明 | Method and device for eliminating air pump noise and outputting smooth airflow |
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| CN2597708Y (en) * | 2003-01-14 | 2004-01-07 | 四川正升环保科技有限公司 | Integrated detachable movable sound reduction cover |
| JP2004279779A (en) * | 2003-03-17 | 2004-10-07 | Mitsubishi Electric Corp | Noise reducing device |
| CN201173143Y (en) * | 2008-03-27 | 2008-12-31 | 上海红湖汽车排气系统工程技术有限公司 | Low noise automobile exhaust silencer |
| CN201635802U (en) * | 2010-01-18 | 2010-11-17 | 上海红湖消声器厂 | Automobile exhaust emission sound damper |
| CN202314809U (en) * | 2011-11-02 | 2012-07-11 | 北京谊安医疗系统股份有限公司 | Noise reduction device and anaesthesia machine with same |
| CN202531264U (en) * | 2012-04-23 | 2012-11-14 | 淮南矿业(集团)有限责任公司 | Silencing device |
-
2012
- 2012-04-23 CN CN201210120405.XA patent/CN103377650B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2597708Y (en) * | 2003-01-14 | 2004-01-07 | 四川正升环保科技有限公司 | Integrated detachable movable sound reduction cover |
| JP2004279779A (en) * | 2003-03-17 | 2004-10-07 | Mitsubishi Electric Corp | Noise reducing device |
| CN201173143Y (en) * | 2008-03-27 | 2008-12-31 | 上海红湖汽车排气系统工程技术有限公司 | Low noise automobile exhaust silencer |
| CN201635802U (en) * | 2010-01-18 | 2010-11-17 | 上海红湖消声器厂 | Automobile exhaust emission sound damper |
| CN202314809U (en) * | 2011-11-02 | 2012-07-11 | 北京谊安医疗系统股份有限公司 | Noise reduction device and anaesthesia machine with same |
| CN202531264U (en) * | 2012-04-23 | 2012-11-14 | 淮南矿业(集团)有限责任公司 | Silencing device |
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| Publication number | Publication date |
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| CN103377650A (en) | 2013-10-30 |
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