CN201090276Y - Exhaustion silencing system for squelch power set - Google Patents
Exhaustion silencing system for squelch power set Download PDFInfo
- Publication number
- CN201090276Y CN201090276Y CNU2007200468835U CN200720046883U CN201090276Y CN 201090276 Y CN201090276 Y CN 201090276Y CN U2007200468835 U CNU2007200468835 U CN U2007200468835U CN 200720046883 U CN200720046883 U CN 200720046883U CN 201090276 Y CN201090276 Y CN 201090276Y
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- silencing apparatus
- generator set
- muffler
- silencing
- outlet pipe
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Abstract
The utility model relates to an exhaust and muffle system for a silent generating set, in particular to a combined exhaust and muffle system, pertaining to the technical field of the internal-combustion engine muffling system. The utility model is characterized in that the combined muffler is composed of a primary muffler and a secondary muffler; the gas outlet tube of the primary muffler is connected with the gas inlet tube of the secondary muffler through a flange; the primary muffler and the secondary muffler are arranged inside a separating chamber; an expanding tube segment is arranged on the pipeline at the inlet end of the primary muffler; a flexible tube segment is arranged inside an exhaust tube. The utility model enlarges the whole working capacity of the muffler, improves the muffling effect and is provided with flexibility in selecting various arrangement plans, which can reduce noises of the overall generating set with obvious noise reducing effect; the utility model can also improve the reliability of muffling system installation.
Description
Technical field
The utility model relates to a kind of exhaust noise silencing system of quiet generator set, and specifically a kind of combined type exhaust noise silencing system belongs to internal-combustion engine silene system technical field.
Background technique
In prior art, traditional by engine-driven generator set, adopt the one-level exhaust silencer usually, just can meet the demands generally speaking.In some noise occasions with limited, MANUFACTURER is often taked the case of generator set is made the closed noise that deadens, and selects for use some high-grade exhaust silencers to abate the noise, thereby forms quiet generator 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 " silencing apparatus of low noise generator 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 model utility truly has its intrinsic advantage, but remains in deficiency, that is, because two noise elimination unit are by the non-removable integral body of affixed one-tenth, Applicable scope is restricted.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned deficiency, thereby a kind of exhaust noise silencing system of quiet generator set is provided, and has both increased the silencing apparatus volume of always working, and has improved erasure effect, has the flexibility of selecting multiple arrangement again; Can reduce the overall noise level of generator set, noise reduction is remarkable, adapts to wide.
Main solution of the present utility model is achieved in that a kind of exhaust noise silencing system of quiet generator set, comprise motor, outlet pipe, compartment and combined type silencing apparatus, it is characterized in that the combined type silencing apparatus is made up of elementary silencing apparatus and secondary silencing apparatus, the steam outlet pipe of elementary silencing apparatus adopts flange to be connected with the suction tude of secondary silencing apparatus, and can disassemble separation, elementary silencing apparatus and secondary silencing apparatus are arranged in the compartment.The gas of combustion of motor successively enters elementary silencing apparatus and secondary silencing apparatus and carries out the noise reduction processing by having the outlet pipe that seamlessly transits elbow, discharges from tailpipe at last.
Pipeline behind the described elementary silencing apparatus entry 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 (outlet end sectional area/entry end sectional area).
Be provided with a flexible pipeline section in the described outlet pipe, the length of this flexible pipeline section the outlet pipe total length 1/3～1/2 between.
The tight parcel in described outlet pipe surface covers sound-absorbing insulation material.
Described elementary silencing apparatus 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 generator set chassis by bolt.
Described compartment is positioned at an end of generator 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 silencing apparatus 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 junction plane in the described exhausting silencer system.
Compared with the prior art the utility model has the following advantages:
The utility model adopts combined type two-stage silencing apparatus scheme, has both increased the silencing apparatus volume of always working, and has improved erasure effect, has the flexibility of selecting multiple arrangement again; Especially the flange connection between silencing apparatus can carry out again combo to the primary and secondary silencing apparatus 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; Outlet pipe with flexible section, big high attenuation the propagation of motor 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 silencing apparatus with dilatation way step by step, has slowed down the variance ratio of pressure gradient in the vent systems, helps reducing noise; Elementary silencing apparatus is fixed on the generator set chassis with support, reduces the amplitude of its forced vibration to greatest extent, thereby has guaranteed the stable of secondary silencing apparatus; The use of heat-resistant seal gasket between the pipeline adpting flange has been stopped gas of combustion at generator set rack internal leakage, helps improving the working environment of motor and generator; Laying of flexible sound-absorbing insulation material, can shield and absorb the noise radiation and the thermal radiation of sending by outlet pipe and silencing apparatus surface, simultaneously can also shield and absorb the fan noise that engine water tank radiator direction transmits, reduce the overall noise level of generator set.
Description of drawings
Fig. 1 is the schematic perspective view that the utility model exhausting silencer system decomposes.
Fig. 2 is the assembling schematic representation of the exhausting silencer system after the utility model back wall is cut open.
Fig. 3 is that the A of the utility model Fig. 2 is to partial sectional view.
Fig. 4 is the schematic representation of dilatation section in the utility model gas exhaust piping.
Embodiment
Embodiment during following the utility model is incited somebody to action in conjunction with the accompanying drawings is further described:
The utility model is mainly by motor 1, outlet pipe 2, flexible pipeline section 21, elementary silencing apparatus 3, support 31, dilatation pipeline section 32, secondary silencing apparatus 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 generator set comprises outlet pipe 2, elementary silencing apparatus 3, secondary silencing apparatus 4, compartment 5 and sound-absorbing insulation material 10 etc.Elementary silencing apparatus 3 is arranged in the relatively independent compartment 5 with secondary silencing apparatus 4, the steam outlet pipe of elementary silencing apparatus 3 is connected with flange with the suction tude of secondary silencing apparatus 4, the gas of combustion of motor 1 is by having the outlet pipe 2 that seamlessly transits elbow, successively enter elementary silencing apparatus 3 and secondary silencing apparatus 4 and carry out the noise reduction processing, discharge from tailpipe at last.
The compartment 5 that is surrounded by back wall 11 and dividing plate 6 is positioned at an end of generator 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 silencing apparatus 4 also to have a diameter separately; The internal 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 motor 1, arranging the radiator of water tank 8 of motor in the hole, radiator 8 is equipped with the fan 9 that is driven by motor 1 by motor one side, fan 9 enters compartment 5 after cooling air is blown over radiator 8, the silencing apparatus 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 junction plane 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 motor 1 operation, lid is subjected to the impact of exhaust airstream and opens, when motor 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 generator set, comprise motor (1), outlet pipe (2), compartment (5) and combined type silencing apparatus, it is characterized in that the combined type silencing apparatus is made up of elementary silencing apparatus (3) and secondary silencing apparatus (4), the steam outlet pipe of elementary silencing apparatus (3) adopts flange to be connected with the suction tude of secondary silencing apparatus (4), and elementary silencing apparatus (3) is arranged in the compartment (5) with secondary silencing apparatus (4).
2. the exhaust noise silencing system of quiet generator set according to claim 1 is characterized in that described outlet pipe (2) surface parcel covers sound-absorbing insulation material (10).
3. the exhaust noise silencing system of quiet generator set according to claim 1 is characterized in that (3 surface parcels cover sound-absorbing insulation material (10) to described elementary silencing apparatus.
4. the exhaust noise silencing system of quiet generator set according to claim 1 is characterized in that the pipeline of described elementary silencing apparatus (3) entry end is provided with dilatation pipeline section (33).
5. the exhaust noise silencing system of quiet generator 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 generator set, 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 generator set according to claim 1 is characterized in that tool is provided with a flexible pipeline section (21) in the described outlet pipe (2), the length of flexible pipeline section (21) the outlet pipe total length 1/3～1/2 between.
8. the exhaust noise silencing system of quiet generator set according to claim 1 is characterized in that described compartment (5) end face is provided with air air discharge grille (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200468835U CN201090276Y (en) | 2007-09-30 | 2007-09-30 | Exhaustion silencing system for squelch power set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200468835U CN201090276Y (en) | 2007-09-30 | 2007-09-30 | Exhaustion silencing system for squelch power set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201090276Y true CN201090276Y (en) | 2008-07-23 |
Family
ID=39862036
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200468835U Expired - Fee Related CN201090276Y (en) | 2007-09-30 | 2007-09-30 | Exhaustion silencing system for squelch power set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201090276Y (en) |
Cited By (3)
| 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 |
| CN103363306A (en) * | 2012-03-28 | 2013-10-23 | 海洋王照明科技股份有限公司 | Mobile lighthouse |
| CN107781020A (en) * | 2017-12-04 | 2018-03-09 | 云南力帆骏马车辆有限公司 | A kind of gas extraction system and lorry |
-
2007
- 2007-09-30 CN CNU2007200468835U patent/CN201090276Y/en not_active Expired - Fee Related
Cited By (4)
| 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 |
| CN103363306A (en) * | 2012-03-28 | 2013-10-23 | 海洋王照明科技股份有限公司 | Mobile lighthouse |
| CN103363306B (en) * | 2012-03-28 | 2017-03-08 | 海洋王照明科技股份有限公司 | Mobile pharos |
| CN107781020A (en) * | 2017-12-04 | 2018-03-09 | 云南力帆骏马车辆有限公司 | A kind of gas extraction system and lorry |
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Legal Events
| 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: 20080723 Termination date: 20140930 |
|
| EXPY | Termination of patent right or utility model |