CN101183815A - Exhaust silencing system for static generator set - Google Patents

Exhaust silencing system for static generator set Download PDF

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Publication number
CN101183815A
CN101183815A CNA2007101335125A CN200710133512A CN101183815A CN 101183815 A CN101183815 A CN 101183815A CN A2007101335125 A CNA2007101335125 A CN A2007101335125A CN 200710133512 A CN200710133512 A CN 200710133512A CN 101183815 A CN101183815 A CN 101183815A
Authority
CN
China
Prior art keywords
muffler
silencing system
silencer
generating set
elementary
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.)
Pending
Application number
CNA2007101335125A
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Chinese (zh)
Inventor
肖亨琳
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.)
Wuxi Kipor Power Co Ltd
Original Assignee
Wuxi Kipor Power 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 Wuxi Kipor Power Co Ltd filed Critical Wuxi Kipor Power Co Ltd
Priority to CNA2007101335125A priority Critical patent/CN101183815A/en
Publication of CN101183815A publication Critical patent/CN101183815A/en
Priority to PCT/CN2008/001155 priority patent/WO2009043222A1/en
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/08—Other arrangements or adaptations of exhaust conduits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N1/00—Silencing apparatus characterised by method of silencing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/02—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having two or more separate silencers in series
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/18—Construction facilitating manufacture, assembly, or disassembly
    • F01N13/1805—Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body
    • F01N13/1811—Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body with means permitting relative movement, e.g. compensation of thermal expansion or vibration
    • F01N13/1822—Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body with means permitting relative movement, e.g. compensation of thermal expansion or vibration for fixing exhaust pipes or devices to vehicle body
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/18—Construction facilitating manufacture, assembly, or disassembly
    • F01N13/1805—Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body
    • F01N13/1811—Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body with means permitting relative movement, e.g. compensation of thermal expansion or vibration
    • F01N13/1816—Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body with means permitting relative movement, e.g. compensation of thermal expansion or vibration the pipe sections being joined together by flexible tubular elements only, e.g. using bellows or strip-wound pipes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2340/00—Dimensional characteristics of the exhaust system, e.g. length, diameter or volume of the apparatus; Spatial arrangements of exhaust apparatuses
    • F01N2340/04—Dimensional characteristics of the exhaust system, e.g. length, diameter or volume of the apparatus; Spatial arrangements of exhaust apparatuses characterised by the arrangement of an exhaust pipe, manifold or apparatus in relation to vehicle frame or particular vehicle parts

Abstract

The invention relates to an exhausting silencing system of a mute generator unit, in particular to a combination type exhausting silencing system, belonging to technical field of a silencing system for an internal combustion engine. The invention is characterized in that: the combination type silencer comprises a primary silencer and a secondary silencer; wherein, an air outlet pipe of the primary silencer is connected with an air inlet pipe of the secondary silencer by means of a flange; both the primary silencer and the secondary silencer are arranged in a partition bin. A capacity expansion tube section is arranged at an inlet end of the primary silencer; a flexible tube section is arranged in the exhaust tube. The invention has the advantages of increasing total work volume of the silencer, improving silencing result, having flexibility of choosing a plurality of technical proposals, lowering total noise level of the generator set, obviously lowering noise and improving reliability of installing the silencing system.

Description

A kind of exhaust noise silencing system of quiet generating set
Technical field
The present invention relates to a kind of exhaust noise silencing system of quiet generating set, specifically a kind of composite type exhaust noise silencing system belongs to internal combustion engine silene system technical field.
Background technology
In prior art, traditional by engine-driven generating set, adopt the one-level exhaust silencer usually, just can meet the demands generally speaking.In some noise occasions with limited, manufacturer often takes the case of generating set is made the closed noise that deadens, and selects for use some high-grade exhaust silencers to abate the noise, thereby forms quiet generating set.But, described high-grade exhaust silencer internal structure complexity, cost is high, and supporting type is single.
China national Department of Intellectual Property was on July 19th, 2006, a kind of " muffler of low noise generating set " utility model patent is disclosed with publication number CN2798401, " it is characterized in that being provided with the two joint noise elimination unit (A, B) that are arranged above and below; two joint noise elimination unit (A, B) respectively are provided with the chamber of a plurality of sealings; adopts resistive and the compound noise elimination structure of resistance; gapped and be provided with bridge piece between two joint noise elimination unit (A, B) ... ", two save the noise elimination unit " radially is connected in series " through bridge piece.This utility model truly has its intrinsic advantage, but remains in weak point, that is, because two noise elimination unit are by the non-removable integral body of affixed one-tenth, the scope of application is restricted.
Summary of the invention
The objective of the invention is to overcome above-mentioned weak point, thereby a kind of exhaust noise silencing system of quiet generating set is provided, both increased the muffler volume of always working, improved erasure effect, have the flexibility of selecting multiple arrangement again; Can reduce the overall noise level of generating set, noise reduction is remarkable, adapts to wide.
Main solution of the present invention is achieved in that a kind of exhaust noise silencing system of quiet generating set, comprise engine, blast pipe, compartment and composite type muffler, it is characterized in that the composite type muffler is made up of elementary muffler and secondary muffler, the escape pipe of elementary muffler adopts flange to be connected with the air inlet pipe of secondary muffler, and can disassemble separation, elementary muffler and secondary muffler are arranged in the compartment.The burnt gas of engine successively enters elementary muffler and secondary muffler and carries out the noise reduction processing by having the blast pipe that seamlessly transits elbow, discharges from tailpipe at last.
Pipeline behind the described elementary muffler arrival end flange is provided with a dilatation pipeline section, the caliber of dilatation pipeline section increases gradually along the air current flow direction, the end that sectional area is little is positioned at the updrift side of exhaust airstream, the end that sectional area is big is positioned at the downstream direction of exhaust airstream, and the dilatation length of pipe section is 0～100mm.Actual internal area increases gradually along the air current flow direction in the pipe of dilatation pipeline section, and the cross-sectional expansion of dilatation pipeline section is 1.4～4.0 than (port of export sectional area/arrival end sectional area).
Be provided with a flexible pipeline section in the described blast pipe, the length of this flexible pipeline section the blast pipe total length 1/3～1/2 between.
The tight parcel in described blast pipe surface covers sound-absorbing insulation material.
Described elementary muffler outer surface covers with flexible sound-absorbing insulation material parcel, and two ends have the support firm support respectively, and support is fixed on the generating set chassis by bolt.
Described compartment is positioned at an end of generating set, the compartment end face is the cooling air air discharge grille, except the vent of arranging with array format, also have the diameter circular hole bigger than the tailpipe external diameter of secondary muffler separately on the air discharge grille, tailpipe is coaxial relative with this circular hole;
Be provided with heat-resisting flange gasket between each flange connection faying face in the described exhausting silencer system.
Compared with the prior art the present invention has the following advantages:
The present invention adopts composite type two-stage muffler scheme, has both increased the muffler volume of always working, and has improved erasure effect, has the flexibility of selecting multiple arrangement again; Especially the flange connection between muffler can carry out again combo to the primary and secondary muffler of different size and then adapt to the different demands of different types of machines; The turning mode that seamlessly transits has avoided place, pipeline sharp turn to produce bigger flow resistance, helps reducing exhaust back pressure, reduces engine power loss; Blast pipe with flexible section, big high attenuation the propagation of engine self vibration to sound-attenuating system and compartment dividing plate, reduced the forced vibration of unit, and improved the reliability that sound-attenuating system is installed; The setting of dilatation pipeline section makes engine exhaust enter elementary muffler with dilatation way step by step, has slowed down the rate of change of barometric gradient in the gas extraction system, helps reducing noise; Elementary muffler is fixed on the generating set chassis with support, reduces the amplitude of its forced vibration to greatest extent, thereby has guaranteed the stable of secondary muffler; The use of heat-resistant seal gasket between the pipeline adpting flange has been stopped burnt gas at generating set rack internal leakage, helps improving the operational environment of engine and generator; Laying of flexible sound-absorbing insulation material, can shield and absorb the noise radiation and the thermal radiation of sending by blast pipe and muffler surface, simultaneously can also shield and absorb the fan noise that engine water tank radiator direction transmits, reduce the overall noise level of generating set.
Description of drawings
Fig. 1 is the schematic perspective view that exhausting silencer system of the present invention decomposes.
Fig. 2 is the assembling schematic diagram of the exhausting silencer system after back wall of the present invention is cut open.
Fig. 3 is that the A of Fig. 2 of the present invention is to partial sectional view.
Fig. 4 is the schematic diagram of dilatation section in the gas exhaust piping of the present invention.
Embodiment
Embodiment during following the present invention incites somebody to action in conjunction with the accompanying drawings is further described:
The present invention is mainly by engine 1, blast pipe 2, flexible pipeline section 21, elementary muffler 3, support 31, dilatation pipeline section 32, secondary muffler 4, compartment 5, dividing plate 6, chassis 7, engine radiator 8, fan 9, sound-absorbing insulation material 10, back wall 11, air discharge grille 12, flange gasket 13a, 13b, bolt 14, exhaust pipe cap 15 compositions such as grade.
Shown in Fig. 1～4: a kind of embodiment of exhaust noise silencing system of quiet generating set comprises blast pipe 2, elementary muffler 3, secondary muffler 4, compartment 5 and sound-absorbing insulation material 10 etc.Elementary muffler 3 is arranged in the relatively independent compartment 5 with secondary muffler 4, the escape pipe of elementary muffler 3 is connected with flange with the air inlet pipe of secondary muffler 4, the burnt gas of engine 1 is by having the blast pipe 2 that seamlessly transits elbow, successively enter elementary muffler 3 and secondary muffler 4 and carry out the noise reduction processing, discharge from tailpipe at last.
Blast pipe 2 links to each other with flange with the exhaust main of engine 1, blast pipe 2 surfaces are wrapped up by flexible sound-absorbing insulation material 10, comprise a flexible pipeline section 21 in the blast pipe 2, the length of flexible pipeline section 21 the blast pipe total length 1/3～1/2 between, both be convenient to install, and can have decayed or block the vibrations of engine 1 again and propagate to other parts; Blast pipe 2 terminal flanges are connected with elementary muffler 3 air inlet pipe arrival end flanges at dividing plate 6 places of compartment 5, have the exhaust hole that adapts with the blast pipe internal diameter on the dividing plate 6, have the flange bolt hole around the exhaust hole, one group of bolt 14 passes bolt hole and is tightened on the nut, make two flange faces from both sides with tightly clamping of dividing plate 6, both guaranteed the smooth and easy of exhaust passage, the support that relies on dividing plate 6 is again implemented firm support to blast pipe 2; On the pipeline behind the elementary muffler 3 arrival end flanges, has a dilatation pipeline section 32, these dilatation pipeline section 32 length are 25～35mm in the present embodiment, actual internal area increases gradually along the air current flow direction in the pipe of dilatation pipeline section 32, and the cross-sectional expansion of this dilatation pipeline section is than (port of export sectional area/arrival end sectional area) ≈ 1.5 in the present embodiment.
Elementary muffler 3 transverse arrangement of turbo are in the bottom of compartment 5, and its outer surface covers with flexible sound-absorbing insulation material 10 parcels, and two ends have support 31 firm support respectively, and support 31 is fixed on the generating set chassis 7 by bolt.
The compartment 5 that is surrounded by back wall 11 and dividing plate 6 is positioned at an end of generating set, the end face of compartment 5 is a cooling air air discharge grille 12, on the grid except the vent of arranging with array format, big (diameter increases 10～15mm) circular hole, and coaxial relative and end face of tailpipe and this circular hole and air discharge grille 12 remain basically stable than the tailpipe external diameter of secondary muffler 4 also to have a diameter separately; The inner surface of back wall 11 all is laid with flexible sound-absorbing insulation material 10, in order to shield from enclosure interior to extraradial noise; Have rectangular opening on the dividing plate 6 between compartment 5 and the engine 1, arranging the radiator of water tank 8 of engine in the hole, radiator 8 is equipped with the fan 9 that is driven by engine 1 by engine one side, fan 9 enters compartment 5 after cooling air is blown over radiator 8, the muffler that surface temperature is higher is implemented cooling, discharge by the vent of top air discharge grille 12 then.
Be provided with heat-resisting flange gasket 13a or 13b between each flange connection faying face in the exhausting silencer system.Exhaust pipe cap 15 is installed in the end of tailpipe, and the top of exhaust pipe cap has turnover lid, during engine 1 operation, lid is subjected to the impact of exhaust airstream and opens, when engine 1 was out of service, lid fell voluntarily by action of gravity and covers the mouth of pipe, can avoid rainwater to enter.

Claims (8)

1. the exhaust noise silencing system of a quiet generating set, comprise engine (1), blast pipe (2), compartment (5) and composite type muffler, it is characterized in that the composite type muffler is made up of elementary muffler (3) and secondary muffler (4), the escape pipe of elementary muffler (3) adopts flange to be connected with the air inlet pipe of secondary muffler (4), and elementary muffler (3) is arranged in the compartment (5) with secondary muffler (4).
2. the exhaust noise silencing system of quiet generating set according to claim 1 is characterized in that described blast pipe (2) surface parcel covers sound-absorbing insulation material (10).
3. the exhaust noise silencing system of quiet generating set according to claim 1 is characterized in that (3 surface parcels cover sound-absorbing insulation material (10) to described elementary muffler.
4. the exhaust noise silencing system of quiet generating set according to claim 1 is characterized in that the pipeline of described elementary muffler (3) arrival end is provided with dilatation pipeline section (33).
5. the exhaust noise silencing system of quiet generating set according to claim 4 is characterized in that described dilatation pipeline section (33) length is: 0～100mm.
6. according to the exhaust noise silencing system of claim 4 or 5 described quiet generating sets, it is characterized in that described dilatation pipeline section (33) cross-sectional expansion ratio is: 1.4～4.0.
7. the exhaust noise silencing system of quiet generating set according to claim 1 is characterized in that tool is provided with a flexible pipeline section (21) in the described blast pipe (2), the length of flexible pipeline section (21) the blast pipe total length 1/3～1/2 between.
8. the exhaust noise silencing system of quiet generating set according to claim 1 is characterized in that described compartment (5) end face is provided with air air discharge grille (12).
CNA2007101335125A 2007-09-30 2007-09-30 Exhaust silencing system for static generator set Pending CN101183815A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CNA2007101335125A CN101183815A (en) 2007-09-30 2007-09-30 Exhaust silencing system for static generator set
PCT/CN2008/001155 WO2009043222A1 (en) 2007-09-30 2008-06-16 An exhaust noise damping system for a silencing dynamotor set

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNA2007101335125A CN101183815A (en) 2007-09-30 2007-09-30 Exhaust silencing system for static generator set

Publications (1)

Publication Number Publication Date
CN101183815A true CN101183815A (en) 2008-05-21

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CNA2007101335125A Pending CN101183815A (en) 2007-09-30 2007-09-30 Exhaust silencing system for static generator set

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CN (1) CN101183815A (en)
WO (1) WO2009043222A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009043222A1 (en) * 2007-09-30 2009-04-09 Wuxi Kipor Power Co., Ltd An exhaust noise damping system for a silencing dynamotor set
CN107476853A (en) * 2017-09-20 2017-12-15 联优机械(常熟)有限公司 The noise-reduction energy-saving device of turbine expansion generating set

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107676171A (en) * 2017-10-26 2018-02-09 江苏东方康弛机电科技有限公司 A kind of Jing Yin cabinet shell structure back wall component

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Publication number Priority date Publication date Assignee Title
DE3708238A1 (en) * 1987-03-16 1988-09-29 Motoren Werke Mannheim Ag POWER AND HEAT COUPLING SYSTEM
CN2093903U (en) * 1991-03-28 1992-01-22 成都市东城区蓉城汽车消声器厂 Expanding and resonant compound silencer for vehicles
CN2479217Y (en) * 2001-06-12 2002-02-27 贵州红湖机械厂 Exhaust silencer assembly for vehicle
CN2634125Y (en) * 2003-07-09 2004-08-18 中国嘉陵工业股份有限公司（集团） Motorcycle silencer
CN2787861Y (en) * 2005-06-01 2006-06-14 重庆宗申技术开发研究有限公司 Engine with air inlet heating device
CN201090276Y (en) * 2007-09-30 2008-07-23 无锡开普动力有限公司 Exhaustion silencing system for squelch power set
CN101183815A (en) * 2007-09-30 2008-05-21 无锡开普动力有限公司 Exhaust silencing system for static generator set

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009043222A1 (en) * 2007-09-30 2009-04-09 Wuxi Kipor Power Co., Ltd An exhaust noise damping system for a silencing dynamotor set
CN107476853A (en) * 2017-09-20 2017-12-15 联优机械(常熟)有限公司 The noise-reduction energy-saving device of turbine expansion generating set
CN107476853B (en) * 2017-09-20 2023-03-31 联优机械(常熟)有限公司 Noise-reducing and energy-saving device of turbine expansion generator set

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Open date: 20080521