CN203797908U - Combined array type impedance hybrid muffler - Google Patents
Combined array type impedance hybrid muffler Download PDFInfo
- Publication number
- CN203797908U CN203797908U CN201420050302.5U CN201420050302U CN203797908U CN 203797908 U CN203797908 U CN 203797908U CN 201420050302 U CN201420050302 U CN 201420050302U CN 203797908 U CN203797908 U CN 203797908U
- Authority
- CN
- China
- Prior art keywords
- noise elimination
- elimination body
- access door
- combined array
- kuppe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
Links
Abstract
The utility model relates to noise silencing equipment, in particular to a combined array type impedance hybrid muffler which comprises silencing tube bodies, supports, inspection doors and flow guide covers. The supports are arrayed in a grid shape and are provided with inspection door frames. The two ends of the silencing tube bodies are fixedly mounted on the grid-shaped intersection points of the supports, the axes of the silencing tube bodies are arrayed in parallel in the airflow direction, and the silencing tube bodies are arrayed through the supports and are fixed in a ventilating duct. The inspection doors are matched to be mounted on the inspection door frames of the supports, the inspection doors are of a link type structure and are hinged to the inspection door frames, and sliding wheels are mounted at the bottoms of the inspection doors. Each flow guide cover comprises a large area lower bottom face and a small area upper bottom face, and the large area lower bottom faces and the end faces of the silencing tube bodies are matched to be mounted. According to the combined array type impedance hybrid muffler, the array mode can be reasonably adjusted according to the characteristics of flow fields, a resistant structure is used for effectively improving specific frequency and particularly improving the silencing effect of low and medium frequency bands, the production efficiency can further be improved, and transportation, storage and maintaining can be further improved.
Description
Technical field
The utility model relates to a kind of noise reduction sound-deadening equipment, particularly relates to a kind of combined array impedance muffler.
Background technology
Noise is that a class causes that people's agitation or volume cross sound strong and that be detrimental to health.Silencer is a kind of device that can allow air-flow to pass through and can effective attenuation noise.In common ventilating system, as the silencer being adopted in the ventilating system of subway, tunnel, heavy construction, ubiquity acoustic wave filter structure is insecure, sound-absorbing material easily leaks, the body flexible arrangement of eliminating the noise deficiency, is not the problem such as very desirable thereby cause actual soundproof effect; In addition, very not convenient in the installation of silencer, aspect safeguarding, there are a series of shortcomings such as transport difficulty.
Utility model content
The purpose of this utility model is to provide a kind of combined array impedance muffler, this silencer can rationally be adjusted combination form according to flow field characteristic, utilize resistance structure, effectively improve CF, the especially soundproof effect of low and medium frequency section, also can enhance productivity, convenient transport, storage and maintenance.
For achieving the above object, the technical scheme that the utility model adopts is:
A kind of combined array impedance muffler, comprises noise elimination body, support, access door and kuppe; Support is latticed arrangement and is provided with access door doorframe; Noise elimination body two ends are fixedly mounted on respectively on the latticed intersection point of support, 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 coordinates and is arranged on the access door doorframe of support, and access door is link rod structure, and carries out hingedly 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 installation with the end face of noise elimination body.
As the further setting of such scheme, described access door is made up of link member one, link member two, and wherein, a side and the link member two of link member one are hinged, and the opposite side of link member one and access door doorframe are hinged.
The outer face of described noise elimination body is perforated plate (shape of through holes on perforated plate is circle or polygon), the inside of noise elimination body is filled with equally distributed deadener (as: sound absorption cotton etc.), one deck fiber cloth is also installed between perforated plate and deadener, and the two ends of noise elimination body are all installed with end face shrouding.End face shrouding can increase the installation contact-making surface with support, and make to eliminate the noise body and support are installed more firm.
The cross section of described noise elimination body is in polygon, circle or ellipse any one.
Described kuppe is any one in terrace with edge shape, truncated cone-shaped or elliptical table shape (being that bottom surface is oval truncated cone-shaped).
Described noise elimination body has single entry noise elimination body and two kinds of versions of Hafu-type noise elimination body, 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 and being uniformly distributed and uneven distribution according to the distribution character of noise source.
Described noise elimination body all arranges kuppe along airflow direction rear and front end, and the noise elimination body of arranging in ventilation shaft disconnects along the interlude of airflow direction, and kuppe is not set on open end.According to the frequency characteristic of noise source, the noise elimination body of arranging 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 to an effective pipeline section sudden change, make it to become the silencer with resistance structure form.
The beneficial effects of the utility model are as follows:
1. easy for installation: the existence of access door structure makes the utility model silencer simpler and more direct in the time of maintenance.Because access door is link rod structure, and carry out hingedly with access door doorframe, therefore under external force, access door can be opened, thereby abdicates passage, is convenient to staff and enters and in silencer pipeline, carry out maintenance.
2. the utility model utilizes pipeline section sudden change place that kuppe forms in communication process, to cause the change of impedance to sound and the reflection, the interference that produce acoustic energy, thereby reduce by silencer to extraradial acoustic energy, and in conjunction with the deadener in noise elimination body, effectively improve CF, the especially soundproof effect of low and medium frequency section; And kuppe is the last installing component of whole muffler device, when transport, for separating alone packed and transported, avoid article in transportation, because collision makes kuppe distortion, and then have influence on the water conservancy diversion effect of system gas.
3. noise elimination body has adopted porous plate and sound absorption to add fiber cloth between cotton, has prevented because of the cotton environmental pollution that leaks outside and bring that absorbs sound, and has also avoided noise elimination body to reduce soundproof effect because of the cotton leakage that absorbs sound, and then has extended the cycle of operation of silencing equipment.
Silencer of the present utility model can be widely used in various need to acquisition compared with in the ventilating noise-elimination equipment such as subway tunnel air conditioner and heavy construction air channel of large noise elimination quantity and the less pressure loss.
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Brief description of the drawings
Fig. 1 is the structural representation of facing of a kind of combined array impedance muffler of the utility model;
Fig. 2 is the perspective view of silencer of the present utility model 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 utility model;
Fig. 5 is the structural representation of the single entry noise elimination body in the utility model;
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 utility model;
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 utility model, comprises noise elimination body 1, support 2, access door 3 and kuppe 4.Support 2 is latticed arrangement and is provided with access door doorframe 10.Noise elimination body 1 two ends are fixedly mounted on respectively on the latticed intersection point of support 2, and the axis of noise elimination body 1 is arranged in parallel along airflow direction, and noise elimination body 1 is arranged and is fixed in ventilation shaft 11 by support 2.Access door 3 coordinates and is arranged on the access door doorframe 10 of support 2, and access door 3 is link rod structure, and carries out hingedly with access door doorframe 10, and the bottom of access door 3 is provided with pulley 9.Shown in Fig. 8,9, kuppe 4 comprises large area bottom surface 41 and small size upper bottom surface 42, and large area bottom surface 41 coordinates installation with the end face of noise elimination body 1.
In the present embodiment, shown in Fig. 3, access door 3 is made up of link member 1, link member 2 32, and wherein, a side and the link member 2 32 of link member 1 are hinged, and the opposite side of link member 1 and access door doorframe 10 are hinged.Under external force, access door 3 can be opened, thereby abdicates passage, is convenient to staff and enters and in silencer pipeline, carry out maintenance.
Shown in Fig. 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, between perforated plate 5 and deadener 7, one deck fiber cloth 6 is also installed, and the two ends of noise elimination body 1 are all installed with end face shrouding 8.The end face shrouding 8 of noise elimination body 1 both ends of the surface and support 2 contact fixing completely, and the mounting structure of the body 1 that makes to eliminate the noise is more firm.In the present embodiment, noise elimination body 1 has single entry noise elimination body and two kinds of versions of Hafu-type noise elimination body, 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 and being uniformly distributed and uneven distribution according to the distribution character of noise source.The cross section of Hafu-type noise elimination body is in polygon, circle or ellipse any one.
In the present embodiment, kuppe 4 is any one in terrace with edge shape, truncated cone-shaped or elliptical table shape, and is for coordinating Hafu-type noise elimination body.Accordingly, the half of kuppe 4, specifically can be with reference to the appropriate section in figure 1, Fig. 2, Fig. 3 for coordinating single entry noise elimination body.
Shown in Fig. 8,9, in the present embodiment, coordinate the kuppe 4 of Hafu-type noise elimination body to be 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 of arranging in ventilation shaft 11 disconnects along the interlude of airflow direction, and kuppe 4 is not set on open end.Be that the utility model can be according to the frequency characteristic of noise source, the noise elimination body 1 that can arrange 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, make silencer in communication process cause to sound that by the sudden change of pipeline section the change of impedance produces the reflection of acoustic energy, interference, thereby reduce by silencer to extraradial acoustic energy, to reach noise elimination object.
Above-described embodiment is only for the inventive concept of the present utility model of explaining, but not restriction to the utility model rights protection, allly utilizes this design to carry out the change of unsubstantiality to the utility model, all should fall into protection domain of the present utility model.
Claims (8)
1. a combined array impedance muffler, is characterized in that: comprise noise elimination body, support, access door and kuppe; Support is latticed arrangement and is provided with access door doorframe; Noise elimination body two ends are fixedly mounted on respectively on the latticed intersection point of support, 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 coordinates and is arranged on the access door doorframe of support, and access door is link rod structure, and carries out hingedly 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 installation with the end face of noise elimination body.
2. a kind of combined array impedance muffler as claimed in claim 1, it is characterized in that: described access door is made up of link member one, link member two, wherein, a side and the link member two of link member one are hinged, and the opposite side of link member one and access door doorframe are hinged.
3. 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, one deck fiber cloth is also installed between perforated plate and deadener, and the two ends of noise elimination body are all installed with end face shrouding.
4. a kind of combined array impedance muffler as described in claim 1 or 2 or 3, is characterized in that: the cross section of described noise elimination body is in polygon, circle or ellipse any one.
5. a kind of combined array impedance muffler as described in claim 1 or 2 or 3, is characterized in that: described kuppe is any one in terrace with edge shape, truncated cone-shaped or elliptical table shape.
6. 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 two kinds of versions of Hafu-type noise elimination body, 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.
7. 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 and being uniformly distributed and uneven distribution according to the distribution character of noise source.
8. 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 of arranging in ventilation shaft disconnects along the interlude of airflow direction, and kuppe is not set on open end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420050302.5U CN203797908U (en) | 2014-01-25 | 2014-01-25 | Combined array type impedance hybrid muffler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420050302.5U CN203797908U (en) | 2014-01-25 | 2014-01-25 | Combined array type impedance hybrid muffler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203797908U true CN203797908U (en) | 2014-08-27 |
Family
ID=51380113
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420050302.5U Withdrawn - After Issue CN203797908U (en) | 2014-01-25 | 2014-01-25 | Combined array type impedance hybrid muffler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203797908U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103807995A (en) * | 2014-01-25 | 2014-05-21 | 浙江金盾风机股份有限公司 | Combined type array impedance recombination silencer |
| CN107481712A (en) * | 2017-09-21 | 2017-12-15 | 江苏声立方环保科技有限公司 | Silencer |
| CN109102788A (en) * | 2018-10-28 | 2018-12-28 | 扬州新扬通风设备有限公司 | A kind of matrix form silencer of inner circle foreign side |
| CN109396758A (en) * | 2018-09-30 | 2019-03-01 | 浙江金盾风机装备有限公司 | A kind of manufacture craft and silencing apparatus of array type silencer sound absorber |
-
2014
- 2014-01-25 CN CN201420050302.5U patent/CN203797908U/en not_active Withdrawn - After Issue
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103807995A (en) * | 2014-01-25 | 2014-05-21 | 浙江金盾风机股份有限公司 | Combined type array impedance recombination silencer |
| CN103807995B (en) * | 2014-01-25 | 2016-02-10 | 浙江金盾风机股份有限公司 | A kind of combined array impedance muffler |
| CN107481712A (en) * | 2017-09-21 | 2017-12-15 | 江苏声立方环保科技有限公司 | Silencer |
| CN107481712B (en) * | 2017-09-21 | 2020-07-24 | 江苏声立方环保科技有限公司 | Noise silencer |
| CN109396758A (en) * | 2018-09-30 | 2019-03-01 | 浙江金盾风机装备有限公司 | A kind of manufacture craft and silencing apparatus of array type silencer sound absorber |
| CN109102788A (en) * | 2018-10-28 | 2018-12-28 | 扬州新扬通风设备有限公司 | A kind of matrix form silencer of inner circle foreign side |
| CN109102788B (en) * | 2018-10-28 | 2023-05-05 | 扬州新扬通风设备有限公司 | Matrix muffler with inner circle and outer square |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103807995B (en) | A kind of combined array impedance muffler | |
| CN203797908U (en) | Combined array type impedance hybrid muffler | |
| CN203757977U (en) | Modular resistant and compensatory compound silencer | |
| CN206556222U (en) | A kind of airduct sound-deadening and noise-reducing device and air duct structure | |
| CN206789293U (en) | A kind of high ventilation rate array type silencer | |
| CN205841266U (en) | High pressure positive blower denoising device | |
| CN202040956U (en) | Noise damping device in air duct of central air conditioner | |
| CN203040090U (en) | Communicational outdoor equipment cabinet fan noise-reduction device | |
| CN109764204A (en) | A kind of natural gas vent sound deadener | |
| CN106320547A (en) | Noise-reduction machine room housing provided with lateral sound insulation boards | |
| CN205140510U (en) | Exhaust muffler with adjustable air input | |
| CN203068747U (en) | Sound attenuation air duct | |
| CN203730415U (en) | Blower tapered diffuser silencer | |
| CN206159126U (en) | Silencing device | |
| CN201439999U (en) | Water heater of integrated hanging heat pump | |
| CN203560063U (en) | Acoustic shield of air compressor | |
| CN203254928U (en) | Noise reduction and ventilation inner cover | |
| CN209557878U (en) | A kind of natural gas vent sound deadener | |
| CN205639098U (en) | Wide band silencer | |
| CN203420768U (en) | Noise abatement device of electric generator | |
| CN206815896U (en) | A kind of removable mute power generator room | |
| CN204533947U (en) | A kind of used in nuclear power station core level HVAC silencing apparatus | |
| CN203081580U (en) | Intermediate-frequency low-noise unit acoustic shield | |
| CN203516219U (en) | Novel sleeve type sound eliminator | |
| CN203771587U (en) | Noise prevention box of outdoor air exchange device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140827 Effective date of abandoning: 20160210 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |