CN203035342U - Mute type diesel power unit - Google Patents
Mute type diesel power unit Download PDFInfo
- Publication number
- CN203035342U CN203035342U CN 201220652817 CN201220652817U CN203035342U CN 203035342 U CN203035342 U CN 203035342U CN 201220652817 CN201220652817 CN 201220652817 CN 201220652817 U CN201220652817 U CN 201220652817U CN 203035342 U CN203035342 U CN 203035342U
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- silencing apparatus
- sound
- diesel
- outer cover
- generator
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Abstract
The utility model discloses a mute type diesel power unit and belongs to the technical field of a portable component used for a generator. The mute type diesel power unit comprises a diesel, a generator driven by the diesel, and a copper sound insulation outer cover which is arranged at the periphery of the generator and the diesel, an air out let and an air inlet are formed in the left side and the right side of the sound insulation outer cover, wherein the air inlet is located at one end of the generator, the air outlet is located at one end of the diesel, silencers are arranged at an air discharging pipe position of the diesel, the number of the silencers is two, the silencers are successively a first silencer and a second silencer, the first silencer is connected with the air discharging pipe through a connector curve pipe; and the wind guiding covers are arranged at the positions of the air inlet and the air outlet. The mute type diesel power unit has the advantages of being good in noise reduction effect, convenient to operate and maintain, small in investment, capable of possessing functions of both thermal insulation and heat prevention, being used as an emergency reserved power supply, and being applied in communication, banks, hotels and airports and the like.
Description
Technical field
The utility model relates to a kind of squelch type diesel generating set, belongs to the portable components technical field for generator.
Background technique
All there is the shortcoming that vibrations are big, noise is big in diesel generating set all the time, divides from the reason and the position that produce, and the noise of diesel generating set can comprise following a few part: (1) smoke evacuation noise; (2) mechanical noise; (3) combustion noise; (4) cooling fan and air draft noise; (5) air intake noise; (6) generator noise.Along with the day by day raising of people to environmental requirement, the setting of existing diesel generating set can't be satisfied the requirement of current environment standard.
Have based on this, make the utility model.
The model utility content
For controlling and slackening the noise that produces in the generator set using process, the technological scheme that the utility model is taked is as follows:
The squelch type diesel generating set, comprise diesel engine and diesel-driven generator, and the copper sound insulation outer cover of being located at generator, diesel engine periphery, this sound insulation outer cover the right and left is respectively equipped with relief opening and suction port, wherein, suction port is positioned at generator one end, relief opening is positioned at diesel engine one end, at the outlet pipe place of diesel engine silencing apparatus is installed, and described silencing apparatus is two, be followed successively by first silencing apparatus and second silencing apparatus, first silencing apparatus is connected by the interface bend pipe with outlet pipe; Described suction port, exhaust ports are provided with wind scooper.
For realizing better using effect, further arrange as follows:
Described first silencing apparatus is installed on the interface bend pipe by pad and bolt.
Described second silencing apparatus docks with first silencing apparatus by screw bolt and nut.
All be equipped with sponge, rock wool or asbestos sound-absorbing material on the described sound insulation outer cover inwall.
Be equipped with sponge, rock wool or asbestos sound-absorbing material on the wind scooper inwall at described suction port place, be equipped with rock wool or asbestos sound-absorbing material on the wind scooper inwall of exhaust ports.
Described sound insulation outer cover thickness is 2-5mm.
Described sound-absorbing material thickness is 20-30mm.
Working principle of the present utility model and beneficial effect are as follows:
1. the smoke evacuation noise is a kind of high temperature, pulsating nature pneumatic noise at a high speed, be energy maximum in the equipment acoustic noise, part that composition is maximum, mechanical noise than induction noise and body radiation is much higher, it is the main constituent element of unit overall noise, also be the emphasis of noise control, its fundamental frequency is exactly the spark rate of diesel engine.For reducing the airspeed of each parts of smoke exhaust port, and the number of times of right-angled bend in the minimizing exhaust duct, enlarge the cross section of outlet pipe, the utility model has adopted has installed a silencing apparatus interface bend pipe before fixing a silencer, can effectively slow down the airspeed when entering silencing apparatus; In addition, at original silencing apparatus, namely increased by second silencing apparatus on the basis of first silencing apparatus, formed two-stage expanssion type noise elimination mechanism, further lowered exhaust sound.Wherein, silencing apparatus bend pipe and silencing apparatus pad pass the suction port stud, and use M8 nut check; First silencing apparatus and silencing apparatus pad use the M8 bolt to the silencing apparatus bend pipe; Second silencing apparatus and silencing apparatus pad dock with first silencing apparatus with the M8 screw bolt and nut.
Since unit adopt natural air inlet, force air draft, advance, exhaust port can produce hole, causes leakage sound, namely forms induction noise district and exhaust sound district.Outwards propagate from wind inlet/output channels for preventing noise, according to exhaust air rate and gas quantity, the utility model design air intake exhausting silencer passage, namely be provided with wind scooper at suction port and relief opening, thereby guarantee, air draft smoothly under the prerequisite (wind speed with 5m/s about be advisable), reach needed noise elimination effect.
3. in the utility model, the sound insulation outer cover is to be effectively to reduce equipment acoustic noise influence to external world, effectively the propagation path of block noise and the enclosed space that designs.When unit is placed on sound insulation outer cover inside, because technology such as sound insulation, sound absorption effectively stop noise outwards to be propagated, the noise of noise source is controlled in sound insulation outer cover inside, thereby reduced equipment acoustic noise influence to external world.Opacity technique is to make the direction of propagation of acoustic wave segment change (reflection, refraction) with acoustic isolater, the acoustic wave energy that penetrates this material is weakened, thereby reduce the noise of the acoustic isolater the other end.And the density of acoustic isolater is more big, and its inertial resistance is more big, more difficult excited vibrational, and the more difficult transmission of sound wave, its sound transmission loss is just more big.In the processing of insulating against sound, a large amount of sound waves are reflected back toward sound insulation outer cover inside, form reverberation sound with original sound wave, will increase noise level and the noise energy of unit inside, thus the defening effect of reduction acoustic isolater.Therefore, the utility model insulate against sound handle in, adhere to sound-absorbing material at the inwall wallboard of sound insulation outer cover, to the processing that absorbs sound of the noise of inside, reducing noise to the extraradial while, also reduced the noise energy of unit inside, thereby effectively reduced overall noise level.Sound absorption is sound wave in the process of propagating, and when running into various types of materials, part acoustic energy is propagated and produce power shifts, conversion or interfere stack to material internal, thereby the energy of sound wave is weakened, and it shows as the decline of sound level intuitively, the decline of noise figure.In the utility model, the sound insulation outer cover adopts the 2mm steel plate to make, the sound-absorbing material of built-in 20-30mm, and also adhered to the sound-absorbing material of 20-30mm at the wind scooper inwall, as rock wool, asbestos or sponge, effectively intercept noise.Wherein, the wind scooper inwall of exhaust ports adopts asbestos or rock wool, in the sound insulation noise reduction, also can play thermal insulation, fire-retardant purpose.
Description of drawings
Fig. 1 is the cross-sectional view of the utility model squelch type diesel generating set.
Number in the figure: 1, diesel engine; 11, outlet pipe; 2, generator; 31, suction port; 32, relief opening; 41, first silencing apparatus; 42, second silencing apparatus; 5, interface bend pipe; 62, second wind scooper; 7, sound-absorbing material.
Embodiment
The utility model squelch type diesel generator, as shown in Figure 1, comprise the generator 2 that diesel engine 1 and diesel engine 1 drive, and be located at diesel engine 1, the copper sound insulation outer cover of generator 2 peripheries, this sound insulation outer cover the right and left is respectively equipped with suction port 31 and relief opening 32, wherein, suction port 31 is positioned at generator 2 one ends, relief opening 32 is positioned at diesel engine 1 one ends, outlet pipe 11 places at diesel engine 1 are equipped with silencing apparatus, described silencing apparatus is two, is followed successively by first silencing apparatus 41 and second silencing apparatus 42, and first silencing apparatus 41 is connected by interface bend pipe 5 with outlet pipe 11; Described suction port 31, relief opening 32 places are provided with wind scooper, the intake grill place be first wind scooper, exhaust ports be second wind scooper 62.
Wherein, first silencing apparatus 41 is installed on the interface bend pipe 5 by pad and bolt, has reduced the airspeed of each parts of smoke exhaust port, and reduces the number of times of right-angled bend in the exhaust duct, enlarges the cross section of outlet pipe 11; Second silencing apparatus 42 docks with first silencing apparatus 41 by screw bolt and nut, forms two-stage expanssion type noise elimination mechanism, has further lowered exhaust sound; The inwall of sound insulation outer cover and wind scooper all is equipped with sound-absorbing material 7, wherein, inwall and the first wind scooper inwall of sound insulation outer cover are all laid the sponge kind sound-absorbing material, lay rock wool class sound-absorbing material on the second wind scooper inwall, insulated against sound in the outside, the noise of inside is carried out sound-absorbing handle, reducing noise to the extraradial while, also reduce the noise energy of unit inside, thereby effectively reduced overall noise level.In the present embodiment, sound insulation outer cover thickness is 5mm, and sound-absorbing material 7 thickness are 30mm.
Because first wind scooper is identical with the structure of second wind scooper, Gu Tuzhong omits structural representation herein.
The utility model squelch type diesel generator, as shown in Figure 1, comprise the generator 2 that diesel engine 1 and diesel engine 1 drive, and be located at diesel engine 1, the copper sound insulation outer cover of generator 2 peripheries, this sound insulation outer cover the right and left is respectively equipped with suction port 31 and relief opening 32, wherein, suction port 31 is positioned at generator 2 one ends, relief opening 32 is positioned at diesel engine 1 one ends, outlet pipe 11 places at diesel engine 1 are equipped with silencing apparatus, described silencing apparatus is two, is followed successively by first silencing apparatus 41 and second silencing apparatus 42, and first silencing apparatus 41 is connected by interface bend pipe 5 with outlet pipe 11; Described suction port 31, relief opening 32 places are provided with wind scooper, the intake grill place be first wind scooper, exhaust ports be second wind scooper 62.
Wherein, first silencing apparatus 41 is installed on the interface bend pipe 5 by pad and bolt, has reduced the airspeed of each parts of smoke exhaust port, and reduces the number of times of right-angled bend in the exhaust duct, enlarges the cross section of outlet pipe 11; Second silencing apparatus 42 docks with first silencing apparatus 41 by screw bolt and nut, forms two-stage expanssion type noise elimination mechanism, has further lowered exhaust sound; The inwall of sound insulation outer cover and wind scooper all is equipped with sound-absorbing material 7, wherein, inwall and the first wind scooper inwall of sound insulation outer cover are all laid the sponge kind sound-absorbing material, lay rock wool class sound-absorbing material on the second wind scooper inwall, insulated against sound in the outside, the noise of inside is carried out sound-absorbing handle, reducing noise to the extraradial while, also reduce the noise energy of unit inside, thereby effectively reduced overall noise level.In the present embodiment, sound insulation outer cover thickness is 2mm, and sound-absorbing material 7 thickness are 25mm.
Embodiment 3
It is identical that present embodiment and embodiment 1 arrange, and difference is: sound insulation outer cover thickness is 3mm, and sound-absorbing material 7 thickness are 20mm.
Claims (7)
1. squelch type diesel generating set, it is characterized in that: comprise diesel engine and diesel-driven generator, and the copper sound insulation outer cover of being located at generator, diesel engine periphery, this sound insulation outer cover the right and left is respectively equipped with relief opening and suction port, wherein, suction port is positioned at generator one end, relief opening is positioned at diesel engine one end, outlet pipe place at diesel engine is equipped with silencing apparatus, described silencing apparatus is two, be followed successively by first silencing apparatus and second silencing apparatus, first silencing apparatus is connected by the interface bend pipe with outlet pipe; Described suction port, exhaust ports are provided with wind scooper.
2. squelch type diesel generating set according to claim 1, it is characterized in that: described first silencing apparatus is installed on the interface bend pipe by pad and bolt.
3. squelch type diesel generating set according to claim 1, it is characterized in that: described second silencing apparatus docks with first silencing apparatus by screw bolt and nut.
4. squelch type diesel generating set according to claim 1 is characterized in that: all lay sponge, rock wool or asbestos sound-absorbing material on the described sound insulation outer cover inwall.
5. squelch type diesel generating set according to claim 1 is characterized in that: lay sponge, rock wool or asbestos sound-absorbing material on the wind scooper inwall at described suction port place, lay rock wool or asbestos sound-absorbing material on the wind scooper inwall of exhaust ports.
6. squelch type diesel generating set according to claim 1, it is characterized in that: described sound insulation outer cover thickness is 2-5mm.
7. according to claim 4 or 5 described squelch type diesel generating sets, it is characterized in that: described sound-absorbing material thickness is 20-30mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220652817 CN203035342U (en) | 2012-11-29 | 2012-11-29 | Mute type diesel power unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220652817 CN203035342U (en) | 2012-11-29 | 2012-11-29 | Mute type diesel power unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203035342U true CN203035342U (en) | 2013-07-03 |
Family
ID=48687474
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220652817 Expired - Lifetime CN203035342U (en) | 2012-11-29 | 2012-11-29 | Mute type diesel power unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203035342U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107191017A (en) * | 2017-07-03 | 2017-09-22 | 中车长江车辆有限公司 | Railway transportation container-type power generation box |
| CN110454282A (en) * | 2019-08-02 | 2019-11-15 | 广州多钛克机械科技有限公司 | A kind of power-equipment |
-
2012
- 2012-11-29 CN CN 201220652817 patent/CN203035342U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107191017A (en) * | 2017-07-03 | 2017-09-22 | 中车长江车辆有限公司 | Railway transportation container-type power generation box |
| CN110454282A (en) * | 2019-08-02 | 2019-11-15 | 广州多钛克机械科技有限公司 | A kind of power-equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130703 |
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| CX01 | Expiry of patent term |