CN204060936U - Two plate inclined silencing apparatus - Google Patents

Two plate inclined silencing apparatus Download PDF

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Publication number
CN204060936U
CN204060936U CN201420386231.6U CN201420386231U CN204060936U CN 204060936 U CN204060936 U CN 204060936U CN 201420386231 U CN201420386231 U CN 201420386231U CN 204060936 U CN204060936 U CN 204060936U
Authority
CN
China
Prior art keywords
muffler
plate
sound
sound absorption
silencing apparatus
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.)
Expired - Fee Related
Application number
CN201420386231.6U
Other languages
Chinese (zh)
Inventor
吴奇修
李连涛
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Best Solution Power Equipment Tianjin Co Ltd
Original Assignee
Best Solution Power Equipment Tianjin Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Best Solution Power Equipment Tianjin Co Ltd filed Critical Best Solution Power Equipment Tianjin Co Ltd
Priority to CN201420386231.6U priority Critical patent/CN204060936U/en
Application granted granted Critical
Publication of CN204060936U publication Critical patent/CN204060936U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a kind of two plate inclined silencing apparatus, comprise housing (1), the muffling unit that many groups are arranged side by side is furnished with in housing (1), each group muffling unit comprises two pieces of muffler plates (2), two pieces of muffler plates (2) are built into down " V " shape, wherein, described muffler plate (2) is offered some sound attenuation holes (3) and kidney-shaped sound absorption groove (4), described kidney-shaped sound absorption groove (4) interior filling sucting sound material (5), two plate inclined silencing apparatus adopts " V " shape muffler plate structure, and some kidney-shapeds sound absorption groove is set on muffler plate, its to the reducing amount of noise at least 40 decibels to 60 decibels and more than, simultaneously, air can pass through from the sound attenuation hole of muffler plate, also can pass through from the gap between muffling unit, ensure that air output and exhaust air rate, do not changing noise reduction chamber installation dimension, cost does not increase, substantially increase noise reduction.

Description

Two plate inclined silencing apparatus
Technical field
The utility model belongs to noise abatement field, is specifically related to a kind of silencing apparatus.
Background technique
Diesel generating set is the complex machines of multiple sound source, and due to the difference of set structure form, size and Operation Conditions, the impact of each sound generation source on overall noise is different.Generally, in the integrated noise of unit, major part is made up of fan exhaust device and Induction and exhaust noises, if do not administered, the very noisy producing about 110 decibels during the operation of Generators must pollute surrounding environment.
In order to reduce the noise that generator set sends, reduce its work to people and the interference of life, way common at present builds noise reduction chamber outside generator set, and on the wall of noise reduction chamber, be installed into air draft sound device, as shown in Figure 1, this silencing apparatus normally adopts metal shell to make, straight-plate-type noise reducing plate is set in metal shell, less sound attenuation hole is offered in noise reducing plate many places, sound absorption is filled cotton in the cavity of noise reducing plate, these noise reducing plate horizontal parallel arrange, therefore, in air intake and air draft process, when noise passes through from sound attenuation hole, acoustic energy is changed into heat energy with sound absorption cotton because of friction and dissipates by it, noise is reduced with this, but this adsorption effect of straight-plate-type noise reducing plate to noise arranged in parallel is more poor, generally can only reduce by 20 decibels ~ 30 decibels, and this silencing apparatus dust-proof effect is bad, the foreign matter such as dust or insect directly can enter into indoor.
Model utility content
For above-mentioned deficiency, the utility model provides a kind of acoustically effective good, and can effectively prevent the foreign matter such as dust, insect from entering indoor two plate inclined silencing apparatuss.
The utility model is realized by such technological scheme: a kind of two plate inclined silencing apparatus, the muffling unit that many groups are arranged side by side is furnished with in its housing, each group muffling unit comprises two pieces of muffler plates, two pieces of muffler plates are built into down " V " shape, wherein, described muffler plate is offered some sound attenuation holes and kidney-shaped sound absorption groove, filling sucting sound material in described kidney-shaped sound absorption groove.
As preferably, described sound attenuation hole and sound absorption groove are distributed on muffler plate.
As further improvement, described muffler plate is in tilted layout in housing, and its tilt angle alpha is preferably 30 °, can certainly enter exhaust air rate as required and adjust this angle flexibly.
Two plate inclined silencing apparatuss that the utility model provides adopt " V " shape muffler plate structure, and some kidney-shapeds sound absorption groove is set on muffler plate, filling sucting sound material in sound absorption groove, such as glass sound absorption cotton or glass fiber cloth, therefore, at air intake place, when air entrainment noise by muffler plate, eddy airstream can be formed in sound absorption groove, dust in air will be deposited in this sound absorption groove, this sound absorption groove bottom is larger than top, form a larger cavity, and be wherein filled with sound-absorbing material, therefore, no matter be noise reduction aspect, or dust-removal anti-mosquito aspect, all there is good effect, its to the reducing amount of noise at least 40 decibels to 60 decibels and more than, simultaneously, air can pass through from the sound attenuation hole of muffler plate, also can pass through from the gap between muffling unit, ensure that air output and exhaust air rate, in the process passed through, sound wave is due to the frictional force increase between muffler plate, the viscous resistance be subject to is also larger, acoustic energy changes into heat energy, thus noise is played to the effect of purification of eliminating the noise, do not changing noise reduction chamber installation dimension, cost does not increase, substantially increase noise reduction.
Accompanying drawing explanation
Fig. 1 is the cut-away view of silencing apparatus in this case embodiment.
Fig. 2 is the structural drawing of a muffling unit in Fig. 1.
Fig. 3 is the scheme of installation of silencing apparatus.
Embodiment
In order to clearly understand the purpose of this utility model, technological scheme and beneficial effect, below in conjunction with accompanying drawing, the utility model is described further, but protection domain of the present utility model is not limited in the examples below.
Embodiment one:
As shown in Figure 1 to Figure 3.
A kind of two plate inclined silencing apparatus, comprise the housing 1 that galvanized sheet iron is made, the muffling unit that many groups are arranged side by side is furnished with in housing 1, each group muffling unit comprises two pieces of muffler plates 2 adopting the thick zinc-plated punched-plate of 0.5mm to make, two pieces of muffler plates 2 are built into down " V " shape, surface of contact can be ensured, air quantity can be ensured again, wherein, described muffler plate 2 is offered some sound attenuation holes 3 and kidney-shaped sound absorption groove 4, filling sucting sound material 5, i.e. glass fiber cloth and glass silencing cotton mixture in described kidney-shaped sound absorption groove 4; Sound attenuation hole 3 and sound absorption groove 4 are distributed on muffler plate 2; Muffler plate 2 is in tilted layout in housing 1, and its tilt angle alpha is 30 °, makes the resistance of muffler plate 2 pairs of air circulations be unlikely to too large, can effectively guarantee air intake and exhaust air rate.
By above-mentioned pair of plate inclined silencing apparatus with reference to the mounting type shown in Fig. 3, silencing apparatus 6 is assemblied on noise reduction chamber 7, entering air draft place, when air entrainment noise and foreign matter in the direction of the arrow by muffler plate 2, eddy airstream can be formed in sound absorption groove 4, foreign matter in air will be deposited in this sound absorption groove 4, larger than top bottom this sound absorption groove 4, form a larger cavity, and be wherein filled with sound-absorbing material 5, therefore, no matter be noise reduction aspect, or dust-removal anti-mosquito aspect, all there is good effect, its to the reducing amount of noise at least 40 decibels to 60 decibels and more than, simultaneously, air can pass through from the sound attenuation hole 3 of muffler plate 2, also can pass through from the gap between muffling unit, ensure that air output and exhaust air rate, in the process passed through, sound wave is due to the frictional force increase between muffler plate 2, the viscous resistance be subject to is also larger, acoustic energy changes into heat energy, thus noise is played to the effect of purification of eliminating the noise.
According to Different field, the noise reduction chamber size of practical measurement requirement, formulates advanced reasonably comprehensive treatment scheme, makes every effort to stable treatment effect, control expense economy, and the normal operation and management operation of the equipment that do not affect, is convenient to maintenance process simulation.
More than show and describe basic principle of the present invention and major character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and specification just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.

Claims (3)

1. a two plate inclined silencing apparatus, comprise housing (1), it is characterized in that: in described housing (1), be furnished with the muffling unit that many groups are arranged side by side, each group muffling unit comprises two pieces of muffler plates (2), two pieces of muffler plates (2) are built into down " V " shape, wherein, described muffler plate (2) is offered some sound attenuation holes (3) and kidney-shaped sound absorption groove (4), described kidney-shaped sound absorption groove (4) interior filling sucting sound material (5).
2. two plate inclined silencing apparatus as claimed in claim 1, is characterized in that: described sound attenuation hole (3) and sound absorption groove (4) are distributed on muffler plate (2).
3. two plate inclined silencing apparatus as claimed in claim 1, is characterized in that: described muffler plate (2) is in tilted layout in housing (1), and its tilt angle alpha is 30 °.
CN201420386231.6U 2014-07-14 2014-07-14 Two plate inclined silencing apparatus Expired - Fee Related CN204060936U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420386231.6U CN204060936U (en) 2014-07-14 2014-07-14 Two plate inclined silencing apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420386231.6U CN204060936U (en) 2014-07-14 2014-07-14 Two plate inclined silencing apparatus

Publications (1)

Publication Number Publication Date
CN204060936U true CN204060936U (en) 2014-12-31

Family

ID=52202468

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420386231.6U Expired - Fee Related CN204060936U (en) 2014-07-14 2014-07-14 Two plate inclined silencing apparatus

Country Status (1)

Country Link
CN (1) CN204060936U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104806335A (en) * 2015-04-13 2015-07-29 成都陵川特种工业有限责任公司 Silencer improved structure used for automobile exhaust pipe
CN106205588A (en) * 2016-08-26 2016-12-07 四川三元环境治理股份有限公司 Multilamellar perforated microstructure noise elimination flow deflector
CN106223502A (en) * 2016-07-20 2016-12-14 无锡派乐科技有限公司 A kind of environmental protection machine room

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104806335A (en) * 2015-04-13 2015-07-29 成都陵川特种工业有限责任公司 Silencer improved structure used for automobile exhaust pipe
CN106223502A (en) * 2016-07-20 2016-12-14 无锡派乐科技有限公司 A kind of environmental protection machine room
CN106205588A (en) * 2016-08-26 2016-12-07 四川三元环境治理股份有限公司 Multilamellar perforated microstructure noise elimination flow deflector
CN106205588B (en) * 2016-08-26 2022-10-28 四川三元环境治理股份有限公司 Multilayer micro-perforated structure noise elimination flow deflector

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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: 20141231

Termination date: 20150714

EXPY Termination of patent right or utility model