CN206845319U - A kind of air-cooled noise-reduced diesel generator - Google Patents
A kind of air-cooled noise-reduced diesel generator Download PDFInfo
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- CN206845319U CN206845319U CN201720708693.9U CN201720708693U CN206845319U CN 206845319 U CN206845319 U CN 206845319U CN 201720708693 U CN201720708693 U CN 201720708693U CN 206845319 U CN206845319 U CN 206845319U
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Abstract
Diesel-driven generator sound-deadening and noise-reducing field is the utility model is related to, specifically a kind of air-cooled noise-reduced diesel generator, increasingly harsh noise requirements can be met.Including Jing Yin casing, respectively positioned at air inlet louvers and 2 axial flow blowers of exhaust shutter, in addition to the multiple silencing apparatus being arranged in silencing case body.By setting multiple noise elimination structures, diesel-driven generator radiating and noise reduction can be taken into account.Also there is small volume, effect in light weight.
Description
Technical field
Diesel-driven generator sound-deadening and noise-reducing field is the utility model is related to, specifically a kind of air-cooled mute diesel generates electricity
Machine, increasingly harsh noise requirements can be met.
Background technology
Air-cooled diesel-driven generator is applied to multiple fields in reality, has good low-temperature starting type and adaptability.With
The continuous improvement of environmental requirement, especially noise, it is impossible to meet increasingly harsh noise requirements.Conventional air-cooled bavin
The sound pressure levels of fry dried food ingredients motor are more than 95dB at 1 meter, therefore, it is necessary to take the processing for reducing noise.
For the source analysis of noise, engine including engine blower, the axial flow blower at ventilating opening etc. turn into noise
Main source, meanwhile, when being worked as engine vibrations caused by secondary noise be also one of main source.
Taking in the prior art reduces the diesel-driven generator of noise measure, usually takes the profile of increase diesel-driven generator
Size, or the shock insulation thickness of increase shell, although this two ways can realize the effect for reducing noise, due to body
Product, the increase of weight have impact on conevying efficiency, meanwhile, the shock insulation thickness of shell is increased, the radiating of engine will be influenceed.
Therefore, it is necessary to propose that one kind can take into account diesel-driven generator radiating and reduce noise, Transportation Efficiency is disclosure satisfy that again
The diesel-driven generator of rate.
Utility model content
The utility model is directed to problems of the prior art, proposes a kind of air-cooled noise-reduced diesel generator.Take into account
While diesel-driven generator radiating and low noise, there is small volume, in light weight, it is possible to increase the characteristics of conevying efficiency.
The technical solution of the utility model is as follows：
A kind of air-cooled noise-reduced diesel generator, including Jing Yin casing, respectively positioned at air inlet louvers and exhaust shutter
2 axial flow blowers, it is characterised in that：Also include the multiple silencing apparatus being arranged in silencing case body；The multiple dress of eliminating the noise
Put including the exhaust silencer for engine and the fans silencer for axial flow blower.
The effect that the utility model obtains relative to prior art is：
1, by setting multiple noise elimination structures, diesel-driven generator radiating and noise reduction can be taken into account.
2, diesel-driven generator provided by the utility model, there is small volume, effect in light weight.
Brief description of the drawings
Fig. 1 is the utility model main cross-sectional schematic diagram；
Fig. 2 is the utility model left view；
Fig. 3 is the utility model right view；
Fig. 4 is the utility model upward view；
Fig. 5 is the utility model engine charge side view；
Wherein, 1- diesel engines, 2- generators, 3- strip-type silencers, 4- exhaust axial flow blowers, 5- exhaust shutters,
The Jing Yin casings of 6-, 7- locals control cabinet, 8- fuel tanks, 9- output interfaces, 10- chassis, 11- composite bottom boards, 12- Intake shaft stream wind
Machine, 13- resonance frees peak vibration isolator, 14- rubber shearing vibration isolator, 15- air inlet louvers, 16- low temperature storage batterys, 17- air inlet water conservancy diversion
Cover, 18- metal shaped tubes, 19- exhaust silencers, 20- engine radiating components, 21- engine charge shutters, 22- noise reductions
Backplate.
Embodiment
The utility model is described in detail with embodiment below in conjunction with the accompanying drawings.
Embodiment 1：
A kind of air-cooled noise-reduced diesel generator, including Jing Yin casing, respectively positioned at air inlet louvers and exhaust shutter
2 axial flow blowers, in addition to multiple silencing apparatus being arranged in silencing case body.
First silencing apparatus that the present embodiment provides, is the silencing apparatus for diesel engine, and main purpose is
Absorb the noise as caused by working engine.The silencing apparatus is arranged on the inside of Jing Yin casing, the row with diesel engine
Tracheae connects, and the waste gas noise of engine discharge carries out noise reduction process by the silencing apparatus.The silencing apparatus can be referred to as
Air exhaust muffler device, concrete structure can use a variety of noise elimination structures of the prior art, such as resistance type, anti-type, impedance complex
Type etc. just has the noise elimination structure of certain volume shape；It is preferred that the noise elimination structure of impedance composite, the structure has noise elimination frequency domain wide
The characteristics of.Further, in order to promote the overall radiating of diesel-driven generator, the waste-gas heat for avoiding engine from discharging has influence on quiet
Radiating in sound box bodies, it is preferred that air exhaust muffler device is isolated with silencing case body heat, air exhaust muffler device is independently arranged at
One jiao of top in silencing case body.Further, in order to preferably reduce noise during tail gas discharge, preferably in exhausting silencer
One layer of noise reduction backplate of outside cladding of device, can either play the effect being thermally isolated, can also play the effect of noise reduction.
Second silencing apparatus that the present embodiment provides, it is the silencing apparatus for being directed to the Jing Yin casing with axial flow blower,
Main purpose is to absorb the noise as caused by working axial flow blower.The silencing apparatus is arranged on the inside of Jing Yin casing, with axle
The shell of flow fan is directly connected to or is provided on the closed type air passage between axial flow blower and engine.This disappears
Acoustic device can abbreviation fans silencer, concrete structure can use a variety of noise elimination structures of the prior art, for example, resistance type,
Anti- type, impedance composite etc., still, these structures need to occupy certain space, influence whether the overall body of diesel-driven generator
Product, therefore be not very good.Preferably, fans silencer is arranged to strip-type silencer, there is small volume, easy to process etc.
The characteristics of.Further, strip-type silencer is preferably the perforated plate composition using cladding sound-absorbing material, and this perforated plate, which has, to disappear
The characteristics of audio frequency field width.Jing Yin casing with axial flow blower, the air duct and kuppe of closing, kuppe can also be set
The body fan of diesel engine can be coated, kuppe is connected by being flexible coupling with the axial flow blower of air inlet louvers, a side
Face can avoid cold air from being muted the heat in casing, on the other hand also have the effect for extending and eliminating the noise.
The 3rd silencing apparatus that the present embodiment provides, it is for the overall silencing apparatus of diesel generation group, main purpose
It is to set to handle for diesel-driven generator all component sound-absorbing, sound insulation in the inside of Jing Yin casing.The silencing apparatus is specifically quiet
The mute structure of sound box bodies, can just have in the prior art, the compound noise-reducing structure of Jing Yin casing is realized.However, only it is used only
A kind of Jing Yin casing of structure, although decrease of noise functions can be realized, being detrimental to the fixation of diesel engine and generator makes
With, it is preferred that by remaining position of Jing Yin casing in addition to bottom, i.e. top, four walls are both configured to compound noise-reducing structure, best
The denoising structure being made up of steel plate, sound-insulating felt, centrifugally glass-wool and aluminum perforated plate；And the bottom of Jing Yin casing can fit
Close and be independently arranged on the basis of the fixation use of diesel engine and generator, preferably bottom is arranged to by steel plate, corrosion-resistant
The bottom of rubber felt composition, in addition to steel plate has fixed support effect, rubber felt can also play a part of damping.
The 4th silencing apparatus that the present embodiment provides, it is for the overall silencing apparatus of diesel-driven generator, main purpose
It is to set the damping for diesel-driven generator to handle in the outside of Jing Yin casing.The silencing apparatus is specifically provided in silencing case body
Outer bottom also include multiple rubber shearing vibration isolator and multiple resonance free peaks vibration isolator.In the prior art, although having using small
Elder sister's vibration isolator, still, the shock insulation section of simple rubber shock absorber are small, it is difficult to absorb vibrations when being worked by engine.Therefore,
Resonance free peak vibration isolator is added, forms two level isolation structure, can preferably absorb and be shaken caused by engine work.Institute
It can be multiple to state rubber shearing vibration isolator, and resonance free peak vibration isolator is similarly multiple, be preferably provided 4 rubber shearings
Vibration isolator and 6 resonance free peak vibration isolators.
In addition to foregoing silencing apparatus, in order to further reduce noise, especially reduce from the excessive noise of shutter,
The perforated area of the air inlet louvers and exhaust shutter can also be reduced to meet the minimal face that engine uses
Product.By reducing the area of shutter, the excessive of noise can be reduced.
Diesel engine provided by the utility model, in addition to noise elimination structure, remaining diesel engine thermomechanical components
The inside of Jing Yin casing is arranged in the form of use is of the prior art.In order to avoid increasing the volume of diesel engine, especially
It is to be directed to the position for this structure with certain volume shape of exhaust silencer, preferably changing a part of component accordingly
Put or shape, to reach the effect for not changing original diesel-driven generator volume.Further, it is also possible to heat dissipation channel is set accordingly,
Such as carry out perforate in Jing Yin bottom half corresponding to diesel engine motor spindle so that cold air enters in silencing case body from bottom；
Set and force air inlet, the axial flow blower of exhaust, to carrying out forced heat radiation in silencing case body；Heat radiating fin structure is set, further
The mode of radiating etc. is carried out in itself to engine, for balancing radiating and Jing Yin effect.
Diesel-driven generator provided by the utility model, by actual tests, by 50 DEG C of hot tests, noise objective at 1m
Less than 78dB.
Above example is only to illustrate the technical solution of the utility model, rather than its limitations；Although with reference to foregoing reality
Example is applied the utility model is described in detail, it will be understood by those within the art that：It still can be to preceding
State the technical scheme described in each embodiment to modify, or equivalent substitution is carried out to which part technical characteristic；And these
Modification is replaced, and the essence of appropriate technical solution is departed from the spirit and model of various embodiments of the utility model technical scheme
Enclose.
Claims (10)
1. a kind of air-cooled noise-reduced diesel generator, including Jing Yin casing, positioned at air inlet louvers and it is vented the 2 of shutter respectively
Individual axial flow blower, it is characterised in that：Also include the multiple silencing apparatus being arranged in silencing case body；The multiple silencing apparatus bag
Include the exhaust silencer for engine and the fans silencer for axial flow blower.
2. diesel-driven generator according to claim 1, it is characterised in that：The exhaust silencer is that impedance composite is heat-insulated
Silencer.
3. diesel-driven generator according to claim 2, it is characterised in that：The exhaust silencer and silencing case body heat every
From one jiao of top being independently arranged in silencing case body.
4. diesel-driven generator according to claim 1, it is characterised in that：Cladding noise reduction shield outside the exhaust silencer
Plate.
5. diesel-driven generator according to claim 1, it is characterised in that：The fans silencer is strip-type silencer.
6. diesel-driven generator according to claim 5, it is characterised in that：The strip-type silencer has cladding sound-absorbing material
Perforated plate.
7. diesel-driven generator according to claim 1, it is characterised in that：The Jing Yin casing includes being capable of sound-absorbing and sound insulation
Compound noise-reducing structure.
8. diesel-driven generator according to claim 7, it is characterised in that：The top of the Jing Yin casing, four walls are by steel
Plate, sound-insulating felt, centrifugally glass-wool and aluminum perforated plate composition；The bottom of the Jing Yin casing is by steel plate, anti-corrosive rubber felt group
Into.
9. diesel-driven generator according to claim 1, it is characterised in that：The outer bottom of the Jing Yin casing also includes multiple
Rubber shears vibration isolator and multiple resonance free peaks vibration isolator.
10. diesel-driven generator according to claim 1, it is characterised in that：The air inlet louvers and exhaust shutter
Perforated area is the shutter that disclosure satisfy that the minimum area that engine uses.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720708693.9U CN206845319U (en) | 2017-06-19 | 2017-06-19 | A kind of air-cooled noise-reduced diesel generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720708693.9U CN206845319U (en) | 2017-06-19 | 2017-06-19 | A kind of air-cooled noise-reduced diesel generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206845319U true CN206845319U (en) | 2018-01-05 |
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ID=60799209
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720708693.9U Active CN206845319U (en) | 2017-06-19 | 2017-06-19 | A kind of air-cooled noise-reduced diesel generator |
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| CN (1) | CN206845319U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107035522A (en) * | 2017-06-19 | 2017-08-11 | 沈阳航天新光集团有限公司 | A kind of air-cooled noise-reduced diesel generator |
-
2017
- 2017-06-19 CN CN201720708693.9U patent/CN206845319U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107035522A (en) * | 2017-06-19 | 2017-08-11 | 沈阳航天新光集团有限公司 | A kind of air-cooled noise-reduced diesel generator |
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