CN200975275Y - combination type exhausting silencer for gas engine - Google Patents

combination type exhausting silencer for gas engine Download PDF

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Publication number
CN200975275Y
CN200975275Y CN 200620088124 CN200620088124U CN200975275Y CN 200975275 Y CN200975275 Y CN 200975275Y CN 200620088124 CN200620088124 CN 200620088124 CN 200620088124 U CN200620088124 U CN 200620088124U CN 200975275 Y CN200975275 Y CN 200975275Y
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CN
China
Prior art keywords
muffling
gas engine
sound absorption
noise
suppressor case
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
CN 200620088124
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Chinese (zh)
Inventor
姜建波
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Individual
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Individual
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Priority to CN 200620088124 priority Critical patent/CN200975275Y/en
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Publication of CN200975275Y publication Critical patent/CN200975275Y/en
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Expired - Fee Related legal-status Critical Current

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Abstract

The utility model provides a gas engine combined exhaust muffler which is composed of a connecting flange, an opposing spray muffling device, a taper damping hole clapboard, a shell, a multi hole muffling cover, a sound absorption thermal insulation layer, a muffling resonance drum, a tailpipe and other parts. The gas engine set realizes the five level control through the resistant dissipation of the opposing spray muffling device, the damping dissipation of the taper damping hole clapboard and the multi hole muffling cover, and the absorption and turning of the sound absorption thermal insulation layer as well as the resonant muffling of the muffling resonance drum. The utility model is easy for manufacturing, convenient for installation, with good muffling effect, long service life, can be an exhaust muffler for the gas engine with larger power, and is beneficial for the extension and application for the gas generator set.

Description

Gas engine combined type exhaust silencer
Technical field:
The utility model relates to a kind of than the high power gas engine exhaust muffler, and especially belonging to inflammable gass such as rock gas, well head associated gas, coal mine mash gas, water gas, refinery tail gas, biogas, coke-stove gas, blast furnace gas, sewage treatment gas is the gas engine exhaust silencer of the fuel gas generation unit of fuel.
Background technique:
Fuel gas generation unit noise is a kind of environomental pollution source, and it is made of multiple sound source, mainly comprises combustion noise, mechanical noise and exhaust sound.Wherein the gas engine exhaust sound is the main noise source, and the exhaust sound regularity is not obvious, and after the mixed and disorderly combination, frequency range is 125Hz~500Hz, belongs to broadband, the outstanding noise of medium and low frequency, administers cumbersome.Noise in the fuel gas generation unit of a common 500kW, machine room can reach 105~110 decibels, and machine room external environmemt noise is about 70~85 decibels.
Because the townie demand of high quality, the fuel gas generation unit has been widely used in departments such as telecommunications, post office, bank, library, hospital, hotel, power supply in support.At present, whether China investigates ambient noise according to " standard of environmental noise of urban area " or " factory circle of industrial enterprise noise standard " up to standard, and zones of different is had different noise margin values.For 2 class zones (inhabitation, commercial, industrial hybrid region) is 60dB (A) between daytime, and be 50dB (A) night; Is that 55dB (A), night are 45dB (A) for 1 class zone (inhabitation, culture and education office district) between daytime.The noise that produces during unit operation has brought serious noise pollution to urban environment, has influenced people's proper functioning and life, has also limited the extensive use of fuel gas generation unit.
The exhaust silencer of past gas engine group adopts general internal combustion engine exhaust silencer always, and the equipment acoustic noise level is very high, must just can reach criteria of noise control by the outer comprehensive control measures of employing machine.Noise control program complexity, the construction cost height does not more and more satisfy the requirement of gas electricity generator group extensive use.
Summary of the invention:
The purpose of this utility model provides a kind of gas engine combined type exhaust silencer rational in infrastructure, easy to manufacture, easy for installation, reduce the exhaust sound of unit, simplify the noise control program of fuel gas generation unit, reduce the unit cost, promote the extensive use of fuel gas generation unit.
The purpose of this utility model is achieved in that and adopts multiple noise-cancelling theory, by spray silencer, taper damping baffle with holes, porous sound proof housing, sound absorption thermal-protective coating, the resonance of eliminating the noise tube are constituted Pyatyi combination noise elimination structure, noise is reduced step by step, reach criteria of noise control at last.Compare with former gas engine silencing apparatus, use gas engine combined type exhaust silencer provided by the utility model, can obviously reduce the noise level of gas engine, and silencing apparatus is easy for installation, long service life.
Description of drawings:
Accompanying drawing is according to the gas engine combined type exhaust silencer structural representation that the utility model proposes.
Embodiment:
Describe the concrete structure of the gas engine combined type exhaust silencer that proposes according to the utility model in detail below in conjunction with accompanying drawing.
As shown in drawings, the 1st, adpting flange, the 2nd, to the spray silencer, the 3rd, taper damping baffle with holes, the 4th, suppressor case, the 5th, porous sound proof housing, the 6th, sound absorption thermal-protective coating, the 7th, the resonance of eliminating the noise tube, the 8th, tail pipe.
This embodiment's adpting flange 1 is loaded on the left end of suppressor case 4, is used to connect the gas engine relief opening.Suppressor case 4 inner leftmost side installings are to spray silencer 2, then install taper damping baffle 3 with holes and sound absorption thermal-protective coating 6 successively, porous sound proof housing 5 is loaded in the left end hole of sound absorption thermal-protective coating 6, the resonance of eliminating the noise tube 7 is connected in the right-hand member of suppressor case 4, the resonance of eliminating the noise tube 7 rear portion union tails 8.
The gas engine exhaust at first through adpting flange 1 enter suppressor case 4 inside to spray silencer 2, the noise energy of medium and low frequency sound source can be carried out abundant resistance and dissipate.Pass through taper damping baffle 3 with holes and porous sound proof housing 5 then, but the most of high-frequency noise of cancellation has increased the adaptability of silencing apparatus to high frequency.Air-flow through porous sound proof housing 5 enters suppressor case 4 rear portion cavitys, and the sound absorption thermal-protective coating 6 in this cavity is efficient sound-absorbing material, and the arc concaveconvex structure is made on the surface, can absorb fully and break-in noise, thereby consume noise energy to greatest extent.After gas flows out suppressor case 4, enter custom-designed noise elimination resonance tube 7, further eliminate the noise by the vibration of thin slice.At last, flue gas is discharged by tail pipe 8.
The utility model provides gas engine combined type exhaust silencer to overcome the deficiency of original silencing apparatus, can solve the difficult problem of fuel gas generation unit noise reduction, easy to manufacture, easy for installation, it is respond well to eliminate the noise, long service life can help applying of whole fuel gas generation unit as than the high power gas engine exhaust muffler.

Claims (3)

1. the utility model provides a kind of gas engine combined type exhaust silencer, by adpting flange, parts such as spray silencer, taper damping baffle with holes, suppressor case, porous sound proof housing, sound absorption thermal-protective coating, the resonance of eliminating the noise tube, tail pipe are formed, adpting flange is assemblied in the left end of cylindrical shape suppressor case, the resonance of eliminating the noise tube is connected in the right-hand member of suppressor case, the resonance of eliminating the noise tube rear portion union tail, the inner installing of suppressor case is to spray silencer, taper damping baffle with holes, porous sound proof housing, sound absorption thermal-protective coating.
2. gas engine combined type exhaust silencer as claimed in claim 1, it is characterized in that suppressor case inner leftmost side installing is to the spray silencer, then install taper damping baffle with holes and sound absorption thermal-protective coating successively, the porous sound proof housing is loaded in the left end hole of sound absorption thermal-protective coating.
3. sound absorption thermal-protective coating as claimed in claim 2 is loaded on suppressor case rear portion cavity inner wall, is made by efficient sound-absorbing material, and the arc concaveconvex structure is made on the surface.
CN 200620088124 2006-08-18 2006-08-18 combination type exhausting silencer for gas engine Expired - Fee Related CN200975275Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200620088124 CN200975275Y (en) 2006-08-18 2006-08-18 combination type exhausting silencer for gas engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 200620088124 CN200975275Y (en) 2006-08-18 2006-08-18 combination type exhausting silencer for gas engine

Publications (1)

Publication Number Publication Date
CN200975275Y true CN200975275Y (en) 2007-11-14

Family

ID=38901560

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 200620088124 Expired - Fee Related CN200975275Y (en) 2006-08-18 2006-08-18 combination type exhausting silencer for gas engine

Country Status (1)

Country Link
CN (1) CN200975275Y (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104882137A (en) * 2015-04-16 2015-09-02 北京市燃气集团有限责任公司 Skid-mounted emission noise reduction device and manufacturing method thereof
CN105217046A (en) * 2015-09-28 2016-01-06 湖北易瓦特科技股份有限公司 There is the exhaust passage of flexible venting tube
CN105217048A (en) * 2015-09-28 2016-01-06 湖北易瓦特科技股份有限公司 There is the flexible exhaust passage of cooling system
CN105217047A (en) * 2015-09-28 2016-01-06 湖北易瓦特科技股份有限公司 There is the flexible exhaust passage of heat baffle
CN105253312A (en) * 2015-09-28 2016-01-20 湖北易瓦特科技股份有限公司 Flexible exhaust passage with dynamic balance system
CN109404092A (en) * 2017-08-17 2019-03-01 河南奔马股份有限公司 A kind of exhaust silencer and vehicle
CN113820138A (en) * 2021-10-11 2021-12-21 上海坦泽环保集团有限公司 Engine ground test environment control system

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104882137A (en) * 2015-04-16 2015-09-02 北京市燃气集团有限责任公司 Skid-mounted emission noise reduction device and manufacturing method thereof
CN105217046A (en) * 2015-09-28 2016-01-06 湖北易瓦特科技股份有限公司 There is the exhaust passage of flexible venting tube
CN105217048A (en) * 2015-09-28 2016-01-06 湖北易瓦特科技股份有限公司 There is the flexible exhaust passage of cooling system
CN105217047A (en) * 2015-09-28 2016-01-06 湖北易瓦特科技股份有限公司 There is the flexible exhaust passage of heat baffle
CN105253312A (en) * 2015-09-28 2016-01-20 湖北易瓦特科技股份有限公司 Flexible exhaust passage with dynamic balance system
CN105253312B (en) * 2015-09-28 2017-08-25 易瓦特科技股份公司 Flexible exhaust passage with dynamic balance system
CN109404092A (en) * 2017-08-17 2019-03-01 河南奔马股份有限公司 A kind of exhaust silencer and vehicle
CN113820138A (en) * 2021-10-11 2021-12-21 上海坦泽环保集团有限公司 Engine ground test environment control system

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GR01 Patent grant
C19 Lapse of patent right due to non-payment of the annual fee
CF01 Termination of patent right due to non-payment of annual fee