CN2266834Y - Low-noise diesel generator set - Google Patents
Low-noise diesel generator set Download PDFInfo
- Publication number
- CN2266834Y CN2266834Y CN 96220517 CN96220517U CN2266834Y CN 2266834 Y CN2266834 Y CN 2266834Y CN 96220517 CN96220517 CN 96220517 CN 96220517 U CN96220517 U CN 96220517U CN 2266834 Y CN2266834 Y CN 2266834Y
- Authority
- CN
- China
- Prior art keywords
- generating set
- noise
- muffler
- generator set
- low noise
- 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
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Abstract
The utility model relates to a low-noise diesel generator set, which belongs to the class of generators and aims to lower the noise of common diesel generators and improve environments and the life of inhabitants. The utility model is composed of a common diesel generator set, an oil tank, a storage battery auxiliary device, etc. The utility model is characterized in that cuboid-shaped sealed sound insulating covers composed of sound insulating lays are installed around the generator set and the auxiliary device; in order to bring convenience to operation, the periphery is provided with an air inlet, an air outlet, an operating door, an access door, an observation window, etc. Besides, a sound absorber is installed on an air exhaust pipe. Tests show that the noise of the generator set with the structure is lower than 80dB (A), and the utility model has the advantages of compact structure, safe operation, and convenient transportation.
Description
The utility model low noise diesel generating set belongs to class generator.
Continuous development along with social production, people's living standard is constantly improved, no matter industry, agricultural, commercial, the service trade each side is increasing to the demand of electricity consumption, the imbalance between supply and demand day of electricity consumption is becoming tight, a lot of for this reason departments such as cinema, hospital, hotel, small-sized enterprises and institutions even wealthy family all buy diesel engine generator one after another and generate electricity voluntarily, to guarantee normally carrying out of production, life order.But bring problem thus again, the noise that common generating set produces is bigger, generally about 100dB, even up to 110dB, causes environmental pollution, and bigger harm is brought in already noisy city.
The objective of the invention is to design a kind of diesel generating set of low noise, improve environment, ensure people's normal life.
Because diesel generating set is a noise source more than, comprise mechanicalness noise, fan noise, inflow noise, exhaust noise, air force energy noise etc., wherein exhaust noise is main noise source, it often exceeds more than the 10dB than other noises.Our technical solution is that improvement is main for this reason, does not let slip less important.
The low noise diesel generating set is made up of common generating set and auxiliary devices such as fuel tank, storage battery, and its design feature is: around unit and auxiliary device, the blimp of being made up of puigging is housed up and down; Muffler is housed on blast pipe.
Blimp is cuboid, and the left and right sides has air inlet and actuating doors, and front end has air outlet, and there is access door the back,, puigging up and down, cavity is arranged all around in the door leaf, filling porousness sound-absorbing material in the cavity, and around the blimp, it is whole to form a sealing up and down.Described air inlet and air outlet are the louvre type rectangle vertically, and labyrinth passage is formed by interlayer in the air channel, make to import and export air one-tenth " L " type trend, reduce flow velocity, and the labyrinth spacer structure is identical with puigging.
Described muffler adopts secondary exhausting silencer method, its structure is the interior pipe and the outer tube of the coaxial reducing hollow of two joints, interior pipe two ends link to each other with blast pipe, the outer tube closed at both ends, have on the inner tubal wall in sealing place and arrange orderly aperture, there is the break-in plate two joint junctions, and the break-in plate makes endoporus sealing and the circular passage is unimpeded, the forcibly changing airflow direction.The muffler outer wall all scribbles high-temperature resistant coating, external application porousness sound-absorbing material.
The low noise diesel generating set of structure like this, owing to adopted the blimp of sealing, to all in blimp, be absorbed by all noises that machinery, fan, air inlet, air force can produce, and the formed noise of outlet exhaust obtains handling in muffler, thereby greatly reduce noise, moreover, because blimp inside has held generating set, auxiliary device and control flow, need not special mounting basis and switchgear house, make it compact conformation, handling safety, convenient transportation, also can operate in the open.The low noise diesel generating set can be used as post and telecommunications, hotel, hospital, shop, medium-sized and small enterprises and other stand-by power supply of department of requirement or power, mains lighting supply to noise.
Further specify the utility model below in conjunction with drawings and Examples.
Fig. 1 low noise diesel generating set profile stereogram
Fig. 2 bows to cutaway view
Fig. 3 rearview
Fig. 4 acoustic wave filter structure figure
As seen from Figure 1, Figure 2, the low noise diesel generating set is made up of common generating set (4), fuel tank (10), storage battery main frames such as (6) and auxiliary device, around it, up and down the blimp of being made up of puigging (9) that is cuboid arranged, and arranged on left and right sides has air inlet (2) and actuating doors (5), front end has two fan-out air ports (12), work room air access way all adopts " L " type labyrinth passage (11), to reduce air velocity, there is access door (1) back, but complete machine is hauled out maintenance when unit equipment generation major break down.
Fig. 3 is a rearview, as seen from the figure, the access door upper end has observation window (14), glass is housed, and with the observation window right opposite be control flow, concentrated the operation control instrument, as ammeter, voltmeter, frequency meter, water temperature, oil temperature, oil pressure gauge etc., side is other to be operation panel (15) and terminal box (16), and normal condition only needs outside the cover just can grasp operation ruuning situation.
The direct shadow of the soundproof effect of puigging is to the reduction of noise, and for this reason, inwall stephanoporate steel plates such as puigging, air channel interlayer (13), door leaf are filled out rock wool porousness sound-absorbing material (8) in the cavity, and its inexpensive, heatproof is easy to moulding, and exterior wall is the steel plate making.
The front has been mentioned in the noise source of generating set, and exhaust noise is main noise source, for this reason key design development muffler.Fig. 4 is muffler (a 3) structure chart, it is made up of the interior pipe (21) and the outer tube (18) of the coaxial reducing hollow of two joints, interior pipe two ends have flange (17) to link to each other with blast pipe (7), outer tube is slightly short, closed at both ends, have the aperture that assumes diamond in shape and arrange on the inner tubal wall in sealing place, there is break-in plate (19) two joint junctions, break-in plate shape such as two-sided broad axe, energy forcibly changing airflow direction is when gas is managed in right-hand member is gone into muffler, go into loop turn through aperture, and enter second joint during muffler, and then go into aperture by loop turn, discharge by left end at last.
All scribble high-temperature resistant coating (20) on muffler and blast pipe, the outer wrapping of pipe has sound-absorbing material, and the muffler heat is fully dispersed outside the operating room.
Development is learnt according to reality, when design 20KW low noise diesel generating set blimp, adopts air inlet to be of a size of 300 * 800 (wide * height), rock wool filling thickness 50m/m, and the space, operating room is 6.5 meters
3, the noise mean value in distance unit one Mi Chu space is 75dB (A) after tested.
Provide below the parts title:
(1) access door (2) air inlet (3) silencer
(4) common generating set (5) actuating doors (6) battery
(7) blast pipe (8) sound-absorbing material (9) puigging
(10) fuel tank (11) air channel (12) air outlet
(13) interlayer (14) observation window (15) operation panel
(16) terminal box (17) flange (18) outer tube
(19) pipe in break-in plate (20) high-temperature coatings (21)
Claims (4)
1, a kind of low noise diesel generating set, by common generating set and fuel tank, compositions such as storage battery auxiliary device is characterized in that: around unit and auxiliary device, the blimp of being made up of puigging is housed up and down; Muffler is housed on blast pipe, and blimp is cuboid, and and arranged on left and right sides has air inlet and actuating doors, and front end has air outlet, and access door is equipped with in the back, and blimp is that a sealing is whole.
2, according to the described low noise diesel generating set of claim 1, it is characterized in that: described muffler is the interior pipe and the outer tube of the coaxial reducing hollow of two joints, interior pipe two ends link to each other with blast pipe, the outer tube closed at both ends, have on the inner tubal wall in sealing place and arrange orderly aperture, there is the break-in plate two joint junctions, and the muffler outer wall scribbles high-temperature resistant coating.
3, according to the described low noise diesel generating set of claim 1, it is characterized in that: described air inlet and air outlet are the louvre type rectangle vertically, and labyrinth passage is formed by interlayer in the air channel.
4, according to the described low noise diesel generating set of claim 1,2 or 3, it is characterized in that: puigging, air channel interlayer, door leaf all have cavity, in its cavity and the outer wall of muffler, blast pipe, all load or be laid with the porousness sound-absorbing material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96220517 CN2266834Y (en) | 1996-08-16 | 1996-08-16 | Low-noise diesel generator set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96220517 CN2266834Y (en) | 1996-08-16 | 1996-08-16 | Low-noise diesel generator set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2266834Y true CN2266834Y (en) | 1997-11-05 |
Family
ID=33900774
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96220517 Expired - Fee Related CN2266834Y (en) | 1996-08-16 | 1996-08-16 | Low-noise diesel generator set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2266834Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100414816C (en) * | 2005-09-27 | 2008-08-27 | 山东巨力股份有限公司 | Low noise diesel generator set |
| WO2010037248A1 (en) * | 2008-09-28 | 2010-04-08 | 无锡开普动力有限公司 | Air cooling generator assembly |
| CN102182552A (en) * | 2010-12-29 | 2011-09-14 | 柳州市恒达动力机械制造有限公司 | Novel energy-saving low noise diesel generator set |
-
1996
- 1996-08-16 CN CN 96220517 patent/CN2266834Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100414816C (en) * | 2005-09-27 | 2008-08-27 | 山东巨力股份有限公司 | Low noise diesel generator set |
| WO2010037248A1 (en) * | 2008-09-28 | 2010-04-08 | 无锡开普动力有限公司 | Air cooling generator assembly |
| CN102182552A (en) * | 2010-12-29 | 2011-09-14 | 柳州市恒达动力机械制造有限公司 | Novel energy-saving low noise diesel generator set |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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 |