CN103807995B - A kind of combined array impedance muffler - Google Patents
A kind of combined array impedance muffler Download PDFInfo
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- CN103807995B CN103807995B CN201410036634.2A CN201410036634A CN103807995B CN 103807995 B CN103807995 B CN 103807995B CN 201410036634 A CN201410036634 A CN 201410036634A CN 103807995 B CN103807995 B CN 103807995B
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- noise elimination
- elimination body
- access door
- kuppe
- support
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Abstract
The present invention relates to a kind of noise reduction sound-deadening equipment, particularly relate to a kind of combined array impedance muffler, comprise noise elimination body, support, access door and kuppe; Support is latticed array and is provided with access door doorframe; Noise elimination body two ends are fixedly mounted on the latticed intersection point of support respectively, and the axis of noise elimination body is arranged in parallel along airflow direction, and noise elimination body is by rack arrangement and be fixed in ventilation shaft; Access door cooperation is arranged on the access door doorframe of support, and access door is link rod structure, and carries out hinged with access door doorframe, and the bottom of access door is provided with pulley; Kuppe comprises large area bottom surface and small size upper bottom surface, and large area bottom surface coordinates with the end face of noise elimination body and installs.The present invention according to flow field characteristic Reasonable adjustment combination form, can utilize resistance structure, effectively improves the soundproof effect of CF, especially low and medium frequency section, also can enhance productivity, convenient transport, storage and maintenance.
Description
Technical field
The present invention relates to a kind of noise reduction sound-deadening equipment, particularly relate to a kind of combined array impedance muffler.
Background technology
Noise is that a class causes people's agitation or volume to cross the sound be detrimental to health by force.Silencer a kind ofly air-flow can be allowed to pass through and can the device of effective attenuation noise.In common ventilating system, as in the ventilating system of subway, tunnel, heavy construction the silencer that adopts, ubiquity acoustic wave filter structure is insecure, sound-absorbing material easily leaks, body flexible arrangement of eliminating the noise is not enough, thus causes actual soundproof effect not to be the problem such as very desirable; In addition, very not convenient in the installation, maintenance of silencer, there is a series of shortcomings such as transport difficult.
Summary of the invention
The object of this invention is to provide a kind of combined array impedance muffler, this silencer can according to flow field characteristic Reasonable adjustment combination form, utilize resistance structure, effective soundproof effect improving CF, especially low and medium frequency section, also can enhance productivity, convenient transport, storage and maintenance.
For achieving the above object, the technical solution adopted in the present invention is:
A kind of combined array impedance muffler, comprises noise elimination body, support, access door and kuppe; Support is latticed array and is provided with access door doorframe; Noise elimination body two ends are fixedly mounted on the latticed intersection point of support respectively, and the axis of noise elimination body is arranged in parallel along airflow direction, and noise elimination body is by rack arrangement and be fixed in ventilation shaft; Access door cooperation is arranged on the access door doorframe of support, and access door is link rod structure, and carries out hinged with access door doorframe, and the bottom of access door is provided with pulley; Kuppe comprises large area bottom surface and small size upper bottom surface (definition of " large area " and " small size " herein, only for distinguishing two bottom surfaces up and down of kuppe), and large area bottom surface coordinates with the end face of noise elimination body and installs.
As the further setting of such scheme, described access door is made up of link member one, link member two, and wherein, side and the link member two of link member one are hinged, and opposite side and the access door doorframe of link member one are hinged.
The outer face of described noise elimination body is perforated plate (shape of through holes on perforated plate is circular or polygon), the inside of noise elimination body is filled with equally distributed deadener (as: sound absorption is cotton), also be provided with one deck fiber cloth between perforated plate and deadener, the two ends of noise elimination body are all installed with end face shrouding.End face shrouding can increase the installation contact surface with support, make noise elimination body and support installing more firm.
The cross section of described noise elimination body be in polygon, circle or ellipse any one.
Described kuppe is prismatic table shape, any one in truncated cone-shaped or elliptical table shape (namely bottom surface is oval truncated cone-shaped).
Described noise elimination body has single entry noise elimination body and Hafu-type noise elimination body two kinds of versions, described Hafu-type noise elimination body is that the undercut of two single entry noise elimination body Houghs combines, the arrangement of noise elimination body is intermediate arrangement Hafu-type noise elimination body, and single entry noise elimination body is arranged in the horizontal both sides of ventilation shaft.
The arrangement of described noise elimination body can be divided into according to the distribution character of noise source and being uniformly distributed and uneven distribution.
Described noise elimination body all arranges kuppe along airflow direction rear and front end, and the noise elimination body arranged in ventilation shaft disconnects along the interlude of airflow direction, and open end does not arrange kuppe.According to the frequency characteristic of noise source, the noise elimination body arranged in ventilation shaft does not arrange kuppe along airflow direction intermediate ends, noise elimination body arranges kuppe along airflow direction rear and front end, the layout of noise elimination body is formed an effective pipeline section sudden change, make it to become the silencer with resistance structure form.
Beneficial effect of the present invention is as follows:
1. easy for installation: the existence of access door structure makes silencer of the present invention simpler and more direct when maintenance.Because access door is link rod structure, and carry out hinged with access door doorframe, therefore under external force, access door can be opened, thus abdicates passage, is convenient to staff and enters in silencer pipeline and carry out maintenance.
2. pipeline section sudden change place that the present invention utilizes kuppe to be formed can cause the change of impedance to sound and produce reflection, the interference of acoustic energy in communication process, thus reduce by silencer to extraradial acoustic energy, and in conjunction with the deadener in noise elimination body, effectively improve the soundproof effect of CF, especially low and medium frequency section; And kuppe is the last installing component of whole muffler device, is separate packed and transported alone during transport, avoids article in transportation, make because of collision kuppe be out of shape, and then have influence on the water conservancy diversion effect of system gas.
3. noise elimination body have employed between porous plate and sound absorption cotton and adds fiber cloth, having prevented the environmental pollution brought because absorbing sound leaking outside of cotton, it also avoid noise elimination body and reducing soundproof effect because absorbing sound cotton leakage, and then extending the cycle of operation of silencing equipment.
Silencer of the present invention can be widely used in and variously need to obtain compared with in the ventilating noise-elimination equipment such as the subway tunnel air conditioner of large noise elimination quantity and the less pressure loss and heavy construction air channel.
Below in conjunction with the drawings and specific embodiments, the invention will be further described.
Accompanying drawing explanation
Fig. 1 be a kind of combined array impedance muffler of the present invention face structural representation;
Fig. 2 is the perspective view of silencer of the present invention in ventilation shaft;
Plan structure schematic diagram when Fig. 3 is the access door unlatching in Fig. 1;
Fig. 4 is the structural representation of the Hafu-type noise elimination body in the present invention;
Fig. 5 is the structural representation of the single entry noise elimination body in the present invention;
Fig. 6 is the sectional structure schematic diagram of Fig. 4;
Fig. 7 is the I portion enlarged drawing in Fig. 6;
Fig. 8 is the kuppe structural representation in the present invention;
Fig. 9 is the left TV structure schematic diagram of Fig. 8.
Detailed description of the invention
As shown in Figure 1 and Figure 2, a kind of combined array impedance muffler of the present invention, comprises noise elimination body 1, support 2, access door 3 and kuppe 4.Support 2 is latticed array and is provided with access door doorframe 10.Noise elimination body 1 two ends are fixedly mounted on the latticed intersection point of support 2 respectively, and the axis of noise elimination body 1 is arranged in parallel along airflow direction, and noise elimination body 1 is arranged by support 2 and is fixed in ventilation shaft 11.Access door 3 cooperation is arranged on the access door doorframe 10 of support 2, and access door 3 in link rod structure, and carries out hinged with access door doorframe 10, and the bottom of access door 3 is provided with pulley 9.Shown in composition graphs 8,9, kuppe 4 comprises large area bottom surface 41 and small size upper bottom surface 42, and large area bottom surface 41 coordinates with the end face of noise elimination body 1 and installs.
In the present embodiment, shown in composition graphs 3, access door 3 is made up of link member 1, link member 2 32, and wherein, side and the link member 2 32 of link member 1 are hinged, and opposite side and the access door doorframe 10 of link member 1 are hinged.Under external force, access door 3 can be opened, thus abdicates passage, is convenient to staff and enters in silencer pipeline and carry out maintenance.
Shown in composition graphs 4,5,6,7, the outer face of noise elimination body 1 is perforated plate 5, the inside of noise elimination body 1 is filled with equally distributed deadener 7, is also provided with one deck fiber cloth 6 between perforated plate 5 and deadener 7, and the two ends of noise elimination body 1 are all installed with end face shrouding 8.End face shrouding 8 and the support 2 of noise elimination body 1 both ends of the surface contact fixing completely, make the mounting structure of noise elimination body 1 more firm.In the present embodiment, noise elimination body 1 has single entry noise elimination body and Hafu-type noise elimination body two kinds of versions, Hafu-type noise elimination body is that the undercut of two single entry noise elimination body Houghs combines, the arrangement of noise elimination body 1 is intermediate arrangement Hafu-type noise elimination body, and single entry noise elimination body is arranged in the horizontal both sides of ventilation shaft 11.The arrangement of noise elimination body 1 can be divided into according to the distribution character of noise source and being uniformly distributed and uneven distribution.The cross section of Hafu-type noise elimination body be in polygon, circle or ellipse any one.
In the present embodiment, any one in prismatic table shape, in truncated cone-shaped or elliptical table shape of kuppe 4, and be for cooperation Hafu-type noise elimination body.Accordingly, the half of kuppe 4, specifically can with reference to the appropriate section in figure 1, Fig. 2, Fig. 3 then for coordinating single entry noise elimination body.
Shown in composition graphs 8,9, in the present embodiment, coordinate the kuppe 4 of Hafu-type noise elimination body in positive truncated rectangular pyramids shape.Noise elimination body 1 all arranges kuppe 4 along airflow direction rear and front end, and the noise elimination body 1 arranged in ventilation shaft 11 disconnects along the interlude of airflow direction, and open end does not arrange kuppe 4.Namely the present invention can according to the frequency characteristic of noise source, the noise elimination body 1 can arranged in ventilation shaft 11 does not arrange kuppe 4 along airflow direction intermediate ends, noise elimination body 1 arranges kuppe 4 along airflow direction rear and front end, silencer is made in communication process, to cause the change of impedance by the sudden change of pipeline section to sound and produce reflection, the interference of acoustic energy, thus reduce by silencer to extraradial acoustic energy, to reach noise elimination object.
Above-described embodiment only illustrates inventive concept of the present invention for explaining, but not the restriction to rights protection of the present invention, all changes utilizing this design the present invention to be carried out to unsubstantiality, all should fall into protection scope of the present invention.
Claims (7)
1. a combined array impedance muffler, is characterized in that: comprise noise elimination body, support, access door and kuppe; Support is latticed array and is provided with access door doorframe; Noise elimination body two ends are fixedly mounted on the latticed intersection point of support respectively, and the axis of noise elimination body is arranged in parallel along airflow direction, and noise elimination body is by rack arrangement and be fixed in ventilation shaft; Access door cooperation is arranged on the access door doorframe of support, and access door is link rod structure, and carries out hinged with access door doorframe, and the bottom of access door is provided with pulley; Kuppe comprises large area bottom surface and small size upper bottom surface, and large area bottom surface coordinates with the end face of noise elimination body and installs;
Described access door is made up of link member one, link member two, and wherein, side and the link member two of link member one are hinged, and opposite side and the access door doorframe of link member one are hinged.
2. a kind of combined array impedance muffler as claimed in claim 1, it is characterized in that: the outer face of described noise elimination body is perforated plate, the inside of noise elimination body is filled with equally distributed deadener, also be provided with one deck fiber cloth between perforated plate and deadener, the two ends of noise elimination body are all installed with end face shrouding.
3. a kind of combined array impedance muffler as claimed in claim 1 or 2, is characterized in that: the cross section of described noise elimination body be in polygon, circle or ellipse any one.
4. a kind of combined array impedance muffler as claimed in claim 1 or 2, is characterized in that: described kuppe is any one in prismatic table shape, truncated cone-shaped or elliptical table shape.
5. a kind of combined array impedance muffler as claimed in claim 1, it is characterized in that: described noise elimination body has single entry noise elimination body and Hafu-type noise elimination body two kinds of versions, described Hafu-type noise elimination body is that the undercut of two single entry noise elimination body Houghs combines, the arrangement of noise elimination body is intermediate arrangement Hafu-type noise elimination body, and single entry noise elimination body is arranged in the horizontal both sides of ventilation shaft.
6. a kind of combined array impedance muffler as claimed in claim 1, is characterized in that: the arrangement of described noise elimination body can be divided into according to the distribution character of noise source and being uniformly distributed and uneven distribution.
7. a kind of combined array impedance muffler as claimed in claim 1, it is characterized in that: described noise elimination body all arranges kuppe along airflow direction rear and front end, the noise elimination body arranged in ventilation shaft disconnects along the interlude of airflow direction, and open end does not arrange kuppe.
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| CN201410036634.2A CN103807995B (en) | 2014-01-25 | 2014-01-25 | A kind of combined array impedance muffler |
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| CN201410036634.2A CN103807995B (en) | 2014-01-25 | 2014-01-25 | A kind of combined array impedance muffler |
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| CN103807995A CN103807995A (en) | 2014-05-21 |
| CN103807995B true CN103807995B (en) | 2016-02-10 |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104599664B (en) * | 2014-12-05 | 2018-02-09 | 城林环保技术（上海）有限公司 | A kind of matrix silencer public attention method made in one piece |
| CN106023977A (en) * | 2016-07-28 | 2016-10-12 | 深圳中雅机电实业有限公司 | Silencer with quick disassembling and assembling structure |
| CN109036366A (en) * | 2018-09-20 | 2018-12-18 | 郑州静邦噪声振动控制工程技术有限公司 | Array type silencer and its special-shaped muffling unit |
| CN109903747B (en) * | 2019-03-27 | 2024-02-06 | 广东览讯科技开发有限公司 | Butterfly-shaped muffler |
| CN109949788B (en) * | 2019-04-01 | 2024-02-02 | 广东览讯科技开发有限公司 | Matrix type efficient muffler |
| CN110595052B (en) * | 2019-09-20 | 2022-03-18 | 宁波源海博创科技有限公司 | Silencer with adjustable and excellent performance adapting to air inlet parameters |
| CN114646080A (en) * | 2020-12-18 | 2022-06-21 | 香港大学浙江科学技术研究院 | Smoke exhaust ventilator |
| CN115249471A (en) * | 2022-06-08 | 2022-10-28 | 国网北京市电力公司 | Noise elimination structure and transformer substation with same |
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| CN2045407U (en) * | 1989-03-07 | 1989-10-04 | 北京北方消声设备厂 | Horizontal duct self-joint combined muffler |
| CN1052180A (en) * | 1991-01-16 | 1991-06-12 | 徐火炬 | Broad-band strip-type silencer |
| CN2093242U (en) * | 1991-01-16 | 1992-01-15 | 徐火炬 | Sanitary shape complex impedance type silencer |
| CN2205855Y (en) * | 1994-05-03 | 1995-08-23 | 彭世雄 | Folding gate type muffler repairing channel |
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| EP2024674A1 (en) * | 2006-06-07 | 2009-02-18 | Wozair Limited | Blast protection damper |
| CN201355108Y (en) * | 2009-02-18 | 2009-12-02 | 广东申菱空调设备有限公司 | Muffler device of air conditioner |
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