CN104295365B - Ultra-silent diesel generating set - Google Patents
Ultra-silent diesel generating set Download PDFInfo
- Publication number
- CN104295365B CN104295365B CN201410467078.4A CN201410467078A CN104295365B CN 104295365 B CN104295365 B CN 104295365B CN 201410467078 A CN201410467078 A CN 201410467078A CN 104295365 B CN104295365 B CN 104295365B
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- plate
- water tank
- generating set
- diesel generating
- noise
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 34
- 229920000742 Cotton Polymers 0.000 claims abstract description 11
- 230000003584 silencer Effects 0.000 claims abstract description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 12
- 239000010959 steel Substances 0.000 claims description 12
- 239000000945 filler Substances 0.000 claims description 7
- 210000003141 lower extremity Anatomy 0.000 claims description 5
- 239000002283 diesel fuel Substances 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims 1
- 238000010521 absorption reaction Methods 0.000 abstract description 3
- 238000004458 analytical method Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract 1
- 230000017525 heat dissipation Effects 0.000 abstract 1
- 238000001816 cooling Methods 0.000 description 6
- 238000002485 combustion reaction Methods 0.000 description 3
- 239000002828 fuel tank Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 230000003139 buffering effect Effects 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000000844 transformation Methods 0.000 description 1
- 238000010977 unit operation Methods 0.000 description 1
Landscapes
- Exhaust Silencers (AREA)
Abstract
The invention provides an ultra-silent diesel generating set and belongs to the technical field of generators. The ultra-silent diesel generating set comprises a diesel engine, a generator, a water tank, a base, a top cover and an outer shell. The outer shell comprises a front cover plate, a rear cover plate, a door plate and a rear plate. The front end of the water tank is connected with a water tank baffle, a front tank body is arranged on one side of the water tank baffle, and a rear tank body is arranged on the other side of the water tank baffle. One end of the front tank body is connected to the front cover plate, a wind guide inclined plate is connected to the interior of the front tank body in an inclined mode, and a silencer is connected in the front tank body. One end of the rear tank body is connected with the rear cover plate. The base, the rear cover plate and the door plate are all provided with air inlets, the back face of each air inlet is connected with a wind guide acoustic panel, and sound absorption cotton is evenly laid on the inner surface of the outer shell. According to the ultra-silent diesel generating set, through noise analysis on the diesel generating set, noise sources are explored, different design and improvement modes are applied to the noise sources, noise is lowered greatly, the structure is compact, and the heat dissipation effect is good.
Description
Technical field
The invention belongs to technical field of generators, particularly to a kind of super-silent diesel generating set.
Background technology
Diesel generating set is with diesel engine as prime mover, drags a kind of power-supply device that synchronous generator generates electricity.Diesel oil
It will usually produce 95～125 decibels of noise when generating set runs, without taking necessary noise reduction measure, unit is transported
The noise of row, will cause serious harm to surrounding.Through analysis, the noise of diesel generating set is mainly derived from following
Aspect：
1st, exhaust noise：Exhaust noise be by gas by cylinder piston movement when the periodically pulsing noise that produces and at a high speed
The jet noise that air-flow is formed after air vent ejection is composited, higher than the mechanical noise of induction noise and body radiation
Many, it is topmost ingredient in electromotor overall noise；
2nd, mechanical noise：Mechanical noise is mainly each moving component of electromotor and is subject to gas pressure and motion in operation process
Vibrations caused by the mechanical periodicity of inertia force or mutual impact and produce；
3rd, combustion noise：Combustion noise is the structure quake and noise that diesel oil produces in combustion；
4th, cooling fan noise：General unit water tank is provided with cooling fan, cooling fan noise be by eddy current crack and
Rotational noise composition；
5th, exhaust noise：Exhaust noise passes through air draft mainly due to exhaust noise, cooling fan noise, mechanical noise
Passage radiate and produces；
6th, enter wind noise：Diesel generating set needs enough fresh air supplies when normal work, the entering of unit
Wind passage allows for making fresh air smoothly enter machine room, and the mechanical noise of unit, pneumatic noise can also pass through this simultaneously
Air intake passage is radiated outside machine room；
7th, electromotor noise：Electromotor noise includes the electromagnetic noise that the magnetic field pulsation between stator and rotor causes, with
And mechanical noise produced by rolling bearing rotation.
Content of the invention
The purpose of the present invention is for above technical problem, provides a kind of muting function good, compact conformation super-silent
Diesel generating set.
The present invention be employed technical scheme comprise that for achieving the above object：Super-silent diesel generating set, diesel engine exports
End connects electromotor, and diesel engine free end connects water tank, and diesel engine, electromotor be connected with base respectively, top cover positioned at diesel engine,
On electromotor, water tank, diesel engine, electromotor, water tank periphery are shell, and shell includes front shrouding, rear shrouding, door-plate, back plate,
It is characterized in that：Water tank front end is connected with water tank baffle plate, and water tank baffle plate side is front casing opposite side is rear box, front casing one
Shrouding before the connection of end, front casing is tilted to be connected with wind-guiding swash plate, is connected with acoustic filter in front casing, after rear box one end connects
Shrouding, base, rear shrouding, door-plate all have air inlet, and each air inlet back side is connected with wind-guiding baffle, and inner surface of outer cover all spreads
There is acoustical cotton.
Further, described base is provided with fuel tank.
Further, described top cover is provided with exhaust outlet, exhaust opening, filler, oil filler.
Further, described exhaust outlet, exhaust opening are respectively positioned on front casing.
Further, described rear shrouding is provided with emergency stop switch, observation window.
Further, the steel plate that described water tank baffle plate is 2～4mm for thickness.
Further, the steel plate that described wind-guiding swash plate is 2～4mm for thickness, angle of inclination is 120～150 degree.
Further, described acoustic filter is combined type impedance silencer.
Further, described wind-guiding baffle is made up of upper plate, lower plate, and, parallel to air inlet, upper plate lower end is not low for upper plate
In the lower limb of air inlet, lower plate two ends connect the lower limb of upper plate lower end and air inlet respectively, and wind-guiding baffle is 2 for thickness
The steel plate of～4mm.
The present invention, by the noise analyses to diesel generating set, excavates noise source and is directed to each noise source using different
Design and transformation：The impedance muffler that the present invention adopts, the noise-cancelling theory of dissipative muffler and reactive muffler is passed through suitable
When structural grouping forms, have both acoustic characteristicses concurrently, substantially increase noise reduction；The design of water tank baffle plate by unit and disappears
Sound device separates, and high temperature produced by this acoustic filter runs does not interfere with the normal work of unit, prevents electromotor sound simultaneously
The leaking of sound, reduces the noise of unit to greatest extent it is ensured that decreasing original cooling fan while the normal operation of unit
This noise source, designs wind-guiding swash plate, the guiding exhaust outlet to top cover for the unit hot blast is smoothly discharged it is ensured that machine simultaneously
The normal temperature that group is run；Base, rear shrouding, door-plate are equipped with air inlet, and the back side of each air inlet has installed wind-guiding additional
Baffle, and then lengthen air channel, so that the discharge path of noise is extended, discharge noise and weakened, ensure unit intake foot
Reduce the discharge of noise while enough；The acoustical cotton overlaying in cabinet inside, using the numerous air composition on acoustical cotton
Micropore, can enter row buffering and absorption to the sound wave reaching acoustical cotton, greatly reduce the discharge of internal unit noise.
Brief description
Fig. 1 is the structure front view of super-silent diesel generating set.
Fig. 2 is the structure top view of the top cover of super-silent diesel generating set.
Fig. 3 is the structural representation of the rear shrouding of super-silent diesel generating set.
Fig. 4 is the structural representation of the door-plate of super-silent diesel generating set.
Fig. 5 is the structural representation of the water tank front end of super-silent diesel generating set.
Fig. 6 is the profile of the front shrouding of super-silent diesel generating set.
Fig. 7 is the structural representation of the air inlet of super-silent diesel generating set.
Fig. 8 is the structural representation of the wind-guiding baffle of super-silent diesel generating set.
In figure：1st, diesel engine, 2, electromotor, 3, water tank, 4, base, 5, top cover, 6, shell, 7, front shrouding, 8, rear shrouding,
9th, door-plate, 10, back plate, 11, water tank baffle plate, 12, front casing, 13, rear box, 14, wind-guiding swash plate, 15, acoustic filter, 16, air intake
Mouthful, 17, wind-guiding baffle, 18, acoustical cotton, 19, fuel tank, 20, exhaust outlet, 21, exhaust opening, 22, filler, 23, oil filler,
24th, upper plate, 25, lower plate, 26, emergency stop switch, 27, observation window.
Specific embodiment
Below in conjunction with accompanying drawing, the present invention will be further described.
Embodiment 1
The super-silent diesel generating set for 30kW as shown in Fig. 1～8, diesel engine 1 outfan connects electromotor 2, bavin
Oil machine 1 free end connects water tank 3, and diesel engine 1, electromotor 2 be connected with base 4 respectively, top cover 5 positioned at diesel engine 1, electromotor 2,
On water tank 3, diesel engine 1, electromotor 2, water tank 3 periphery be shell 6, shell 6 include front shrouding 7, rear shrouding 8, door-plate 9, after
Plate 10, shell 6 inner surface is all covered with acoustical cotton 18, and base 4 is provided with fuel tank 19, and water tank 3 front end is connected with water tank baffle plate 11,
Water tank baffle plate 11 is the steel plate of 2mm for thickness, and water tank baffle plate 11 side is front casing 12 opposite side is rear box 13, front casing 12
Shrouding 7 before the connection of one end, front casing 12 is tilted to be connected with wind-guiding swash plate 14, and wind-guiding swash plate 14 is the steel plate of 2mm for thickness, inclines
Rake angle is 135 degree, is connected with acoustic filter 15 in front casing 12, and acoustic filter 15 is combined type impedance silencer, and top cover 5 is provided with
Exhaust outlet 20, exhaust opening 21, filler 22, oil filler 23, exhaust outlet 20, exhaust opening 21 are respectively positioned on front casing 12, after
Shrouding 8 after the connection of casing 13 one end, rear shrouding 8 is provided with emergency stop switch 26, observation window 27, on base 4, rear shrouding 8, door-plate 9
All there is air inlet 16, each air inlet 16 back side is connected with wind-guiding baffle 17, and wind-guiding baffle 17 is by upper plate 24, lower plate 25 structure
Become, parallel to air inlet 16, upper plate 24 lower end is not less than the lower limb of air inlet 16 to upper plate 24, and lower plate 25 two ends connect respectively
Plate 24 lower end and the lower limb of air inlet 16, wind-guiding baffle 17 is the steel plate of 2mm for thickness.
During unit work, unit and acoustic filter 15 are separated by water tank baffle plate 11, run produced height by this acoustic filter 15
Temperature does not interfere with the normal work of unit, prevents leaking of engine sound simultaneously, reduces the noise of unit to greatest extent,
And then replace noise produced by the radiating of original water tank cooling fan it is ensured that decreasing noise while the normal operation of unit
Source；As shown in figure 1, the given out hot blast of unit work changes the air draft to top cover 5 for the flow direction by wind-guiding swash plate 14
Mouthfuls 20 smooth discharge it is ensured that unit operation when normal temperature；Base 4, rear shrouding 8, door-plate 9 are equipped with air inlet 16, such as
Shown in Fig. 7, Fig. 8, the back side of each air inlet 16 has installed wind-guiding baffle 17 additional, and then lengthens air channel, so that air intake is able to suitable
Profit imports (shown in right side arrow), so that the discharge path of noise is extended, and discharges noise and is weakened (shown in left arrow), is protecting
Reduce the discharge of noise while card unit intake is enough；The acoustical cotton 18 overlaying in cabinet inside, using on acoustical cotton 18
Numerous air composition micropore, row buffering and absorption can be entered to the sound wave reaching acoustical cotton 18, greatly reduce inside
The discharge of unit noise.
After testing, by above-mentioned a series of transformations of the present invention, the noise of the diesel generating set of 30kW is by original 71
Decibel is reduced to 62 decibels, so that the noise of diesel generating set is substantially reduced.
Embodiment 2
In embodiment 2, the super-silent diesel generating set structure adopting and work process are in the same manner as in Example 1, embodiment
2 different relevant parameters are as follows：
(1) water tank baffle plate 11 is the steel plate of 4mm for thickness；
(2) wind-guiding swash plate 14 is the steel plate of 4mm for thickness；
(3) wind-guiding swash plate 14 angle of inclination is 120 degree；
(4) wind-guiding baffle 17 is the steel plate of 4mm for thickness.
Claims (7)
1. super-silent diesel generating set, including diesel engine and electromotor, diesel engine (1) outfan connects electromotor (2), diesel oil
Machine (1) free end connects water tank (3), and diesel engine (1), electromotor (2) are connected with base (4) respectively, and top cover (5) is located at diesel engine
(1), on electromotor (2) and water tank (3), top cover (5) is provided with exhaust outlet (20), exhaust opening (21), filler (22), plus machine
Hydraulic fluid port (23), diesel engine (1), electromotor (2) and water tank (3) periphery are shell (6), shrouding (7), rear envelope before shell (6) inclusion
Plate (8), door-plate (9) and back plate (10) it is characterised in that：Water tank (3) front end is connected with water tank baffle plate (11), water tank baffle plate (11)
Side be front casing (12), opposite side be rear box (13), exhaust outlet (20), exhaust opening (21) be respectively positioned on front casing (12) it
On, shrouding (7) before the connection of front casing (12) one end, front casing (12) is tilted to be connected with wind-guiding swash plate (14), guides rear box
(13) exhaust outlet (20) from top cover (5) for the hot blast in is discharged, and is connected with acoustic filter (15), wind-guiding swash plate in front casing (12)
(14) it is located above acoustic filter (15), shrouding (8) after the connection of rear box (13) one end, base (4), rear shrouding (8) and door-plate (9)
On all have air inlet (16), each air inlet (16) back side is connected with wind-guiding baffle (17), and shell (6) inner surface is all covered with sound-absorbing
Cotton (18).
2. super-silent diesel generating set according to claim 1 it is characterised in that：On described base (4), oil is installed
Case (19).
3. super-silent diesel generating set according to claim 1 it is characterised in that：Described rear shrouding (8) is provided with urgency
Guard's valve (26), observation window (27).
4. super-silent diesel generating set according to claim 1 it is characterised in that：Described water tank baffle plate (11) is thickness
Steel plate for 2～4mm.
5. super-silent diesel generating set according to claim 1 it is characterised in that：Described wind-guiding swash plate (14) is thickness
Steel plate for 2～4mm, angle of inclination is 120～150 degree.
6. super-silent diesel generating set according to claim 1 it is characterised in that：Described acoustic filter (15) is combined type
Impedance silencer.
7. super-silent diesel generating set according to claim 1 it is characterised in that：Described wind-guiding baffle (17) is by upper
Plate (24), lower plate (25) are constituted, and upper plate (24) is not less than under air inlet (16) parallel to air inlet (16), upper plate (24) lower end
Edge, lower plate (25) two ends connect the lower limb of upper plate (24) lower end and air inlet (16) respectively, and wind-guiding baffle (17) is thickness
Spend the steel plate for 2～4mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410467078.4A CN104295365B (en) | 2014-09-12 | 2014-09-12 | Ultra-silent diesel generating set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410467078.4A CN104295365B (en) | 2014-09-12 | 2014-09-12 | Ultra-silent diesel generating set |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104295365A CN104295365A (en) | 2015-01-21 |
| CN104295365B true CN104295365B (en) | 2017-02-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410467078.4A Active CN104295365B (en) | 2014-09-12 | 2014-09-12 | Ultra-silent diesel generating set |
Country Status (1)
| Country | Link |
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| CN (1) | CN104295365B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106401740A (en) * | 2016-05-31 | 2017-02-15 | 飞尔特能源(东莞)有限公司 | Modular silent generator set |
| CN107246317A (en) * | 2017-04-19 | 2017-10-13 | 上海科泰电源股份有限公司 | A kind of harbour power plant diesel generating set |
| CN107143423A (en) * | 2017-05-02 | 2017-09-08 | 江苏金润龙科技有限公司 | Environment-protecting intelligent generating set power station |
| CN107893699B (en) * | 2017-12-27 | 2024-04-16 | 善乐（福建）新能源科技有限公司 | Ultra-silent single-cylinder air-cooled diesel generator set |
| CN108716437B (en) * | 2018-07-16 | 2024-03-15 | 扬州市华东动力机械有限公司 | Light-weight high-power output yacht ultra-silent unit |
| CN108979851B (en) * | 2018-09-25 | 2023-10-20 | 广州威能机电有限公司 | Generating device and unit installation mechanism |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2913262B2 (en) * | 1995-03-20 | 1999-06-28 | デンヨー株式会社 | Blow-by gas separation and discharge device for soundproof engine generator |
| JP4095727B2 (en) * | 1998-09-16 | 2008-06-04 | ヤンマー株式会社 | Fuel supply device for engine working machine |
| JP3375563B2 (en) * | 1999-03-30 | 2003-02-10 | 株式会社クボタ | Soundproof engine generator |
| CN201078268Y (en) * | 2007-07-06 | 2008-06-25 | 上海恒锦动力科技有限公司 | Silencing type diesel generating set |
| JP4943405B2 (en) * | 2008-10-28 | 2012-05-30 | ヤンマー株式会社 | Engine generator |
| CN201329814Y (en) * | 2008-12-12 | 2009-10-21 | 无锡开普动力有限公司 | Vehicle-mounted electric generating set |
| CN102052150B (en) * | 2011-01-26 | 2012-08-22 | 无锡开普机械有限公司 | Compact type diesel fuel digital generator easy for maintenance |
| CN204082329U (en) * | 2014-09-12 | 2015-01-07 | 江苏金润龙科技有限公司 | Super-silent diesel generating set |
-
2014
- 2014-09-12 CN CN201410467078.4A patent/CN104295365B/en active Active
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| Publication number | Publication date |
|---|---|
| CN104295365A (en) | 2015-01-21 |
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| C06 | Publication | ||
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 225600 Yangzhou City, Jiangsu Province, Gaoyou City, the town of car Lou industrial concentration area Patentee after: JIANGSU GOLD DRAGON POWER Co.,Ltd. Address before: 225600 Yangzhou City, Jiangsu Province, Gaoyou City, the town of car Lou industrial concentration area Patentee before: JIANGSU GOLD DRAGON POWER Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Middle-sized air cooling ultra silent diesel generating set with double cylinders Effective date of registration: 20180109 Granted publication date: 20170215 Pledgee: Bank of China Limited by Share Ltd. Gaoyou branch Pledgor: JIANGSU GOLD DRAGON POWER Co.,Ltd. Registration number: 2018320000005 |
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Date of cancellation: 20190212 Granted publication date: 20170215 Pledgee: Bank of China Limited by Share Ltd. Gaoyou branch Pledgor: JIANGSU GOLD DRAGON POWER Co.,Ltd. Registration number: 2018320000005 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Middle-sized air cooling ultra silent diesel generating set with double cylinders Effective date of registration: 20190222 Granted publication date: 20170215 Pledgee: Bank of China Limited by Share Ltd. Gaoyou branch Pledgor: JIANGSU GOLD DRAGON POWER Co.,Ltd. Registration number: 2019320000101 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230625 Address after: 261000 North side of the second floor of No. 2 production workshop, No. 13426, Yuqing East Street, High tech Zone, Weifang City, Shandong Province Patentee after: Shandong Qichen New Energy Power Technology Co.,Ltd. Address before: 225600 industrial zone of Che Luo town, Gaoyou City, Yangzhou, Jiangsu Patentee before: JIANGSU GOLD DRAGON POWER Co.,Ltd. |
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