CN102877939B - Air-cooled double-cylinder two-pole low-noise diesel generating set - Google Patents

Air-cooled double-cylinder two-pole low-noise diesel generating set Download PDF

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Publication number
CN102877939B
CN102877939B CN201210387153.7A CN201210387153A CN102877939B CN 102877939 B CN102877939 B CN 102877939B CN 201210387153 A CN201210387153 A CN 201210387153A CN 102877939 B CN102877939 B CN 102877939B
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China
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casing
shell
internal box
cavity
main frame
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CN102877939A (en
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陈可庚
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Suzhou ERMA Machinery Co., Ltd.
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SUZHOU CHENHAO POWER EQUIPMENT CO Ltd
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Abstract

The invention discloses an air-cooled double-cylinder two-pole low-noise diesel generating set which comprises a diesel engine and a power generator, wherein an output shaft of the diesel engine is a cone shaft, and through the connection of the cone shaft and a cone shaft hole in a rotor shaft of the power generator, a host is formed; the host is arranged in a host hollow air duct shell, the host hollow air duct shell is arranged in an inner cabinet body, and the inner cabinet body is arranged in an outer cabinet body, thereby forming a three-layer sound-insulated shell for noise reduction; the diesel engine is provided with an end cover, the end cover is provided with an air inlet and an air outlet, the output shaft of the diesel engine is provided with an exhaust fan, the exhaust fan is arranged in the end cover, the exhaust fan is provided with left and right fan blades, the host hollow air duct shell is provided with hot air inlet and outlet channels, and the inner and outer cabinet bodies are respectively provided with an air inlet and an air outlet; when the exhaust fan, an exhaust blower and a power fan work, a cooling air flow is formed, so that the temperature of the set is reduced; and a five-stage silencer is adopted, and a catalytic converter is arranged inside. The diesel generating set disclosed by the invention is better in noise reduction effect, lower in temperature rise in the working process and smaller in pollution, and keeps the original output power.

Description

Air cooling twin-tub two pole low noise diesel generator set
Technical field
The present invention relates to a kind of generator set, particularly a kind of generator set with air cooling system.
Background technique
Diesel generating set is mainly used as emergent, standby power supply, using scope is wide, the huge market demand, existing diesel generating set on market, owing to depositing the deficiencys such as high, the noise of heating up in the course of the work is large, discharge exceeds standard, is difficult to meet the high request of user to unit quality.Just because of composite factor impacts such as diesel generating set operating temperature is high, noise is large, discharge exceeds standard, inflammable, explosive, diesel oil high-temperature evaporations, constrain technology upgrading and the exploitation development of this series products.Application number is the application for a patent for invention of 201110092068.3, provides a kind of double cylinder diesel generator set that partly can reduce noise, control temperature rise, but due to structural limitations, it reduces noise, the effect of control temperature rise can not be met the need of market completely.
Summary of the invention
The object of this invention is to provide a kind of air cooling twin-tub two pole low noise diesel generator set, in its noise-reducing better effects if, working procedure, temperature rise is lower, pollution is less, and can keep original power.
In order to realize such scheme, technical solution of the present invention is: a kind of air cooling twin-tub two pole low noise diesel generator set, comprise diesel engine, generator, the output shaft of diesel engine and the rotor shaft of generator are connected to form main frame, described main frame to be arranged in internal box and generator on a left side, diesel engine is on the right side, internal box is located in outer casing, main frame hollow air channel shell is also provided with in described internal box, described main frame is arranged in the shell of main frame hollow air channel, main frame hollow air channel shell left end is closed, right-hand member opens wide, active chamber B is formed in the shell of main frame hollow air channel, internal box comprises base, left bank spiracular plate, left, right, upper clapboard and front, rear bulkhead, left bank spiracular plate is evenly equipped with exhaust port, left, right clapboard is equipped with vent, outer casing comprises upper cover, base plate, left, right casing, and it is front, rear casing, on be covered on outer casing top, fuel tank assembly is provided with in upper cover, part near output shaft on diesel engine is provided with end cap, end cap be provided with into, exhaust port, the output shaft of diesel engine is provided with ventilating fan, ventilating fan is positioned on end cap, ventilating fan is provided with a left side, right fan blade, the left part of the base plate of main frame hollow air channel shell is provided with into cold passageway, position near ventilating fan on the shell base plate of main frame hollow air channel is provided with thermal wind exhausting passage, position corresponding with thermal wind exhausting passage on the base plate of outer casing is provided with exhaust port, thermal wind exhausting passage is through the base of internal box, end is located at the exhaust port place of outer casing, form work hot gas between internal box inwall and main frame hollow air channel shell outer wall and distribute chamber D, total heat extraction air cavity E is formed between internal box left bank spiracular plate and left clapboard, the left clapboard of internal box is provided with air bells exhauster, outer casing is provided with heat extraction air holes and is communicated with total heat extraction air cavity E, formed into cold wind chamber A between the right clapboard of internal box and the right casing of outer casing, outer casing be provided with into cold wind mouth with enter cold wind chamber A and be communicated with, and enter cold wind chamber A and active chamber B, work hot gas distributes chamber D and is communicated with mutually, formed into cold passageway A1 between bottom internal box top board and fuel tank assembly, outer casing covers offer with enter that cold passageway A1 is connected enter cold wind mouth, formed into cold passageway A5 between the base of internal box and the bottom of main frame hollow air channel shell, enter cold passageway A5 and enter cold passageway and be communicated with, distribute in the D of chamber at work hot gas and be provided with two baffler thermal wind exhausting passages, two baffler assemblies are located in two baffler thermal wind exhausting passages respectively, two baffler thermal wind exhausting passages are communicated with between total heat extraction air cavity E, the base of internal box and the base plate of outer casing are equipped with baffler passage.
Air cooling twin-tub two pole of the present invention low noise diesel generator set, wherein, described main frame hollow air channel shell base plate outer wall is equipped with antivibration pad, and antivibration pad is secured by bolts on the base of internal box, and the base of internal box is fixed on the base plate of outer casing.
Air cooling twin-tub two pole of the present invention low noise diesel generator set, wherein, before described outer casing, rear casing and upper cover are all divided into left and right two-part, wherein front casing is divided into a left side, right front shell, rear casing is divided into a left side, right back shell, upper cover is divided into a left side, upper right lid, wherein left front shell, left back shell, left upper cover and left outside shell form left outside casing, right front shell, right back shell, upper right lid and right casing form right outside casing, right outside casing is fixed on chassis, before internal box base, rear edge is respectively equipped with front groove beam, pit beam, the lower limb of left front shell and left back shell is located at front groove beam respectively, in pit beam, at described front groove beam, pit beam and left front shell, ball bearing is equipped with between left back shell lower limb, left outside bottom half is provided with pulley, left, between right front shell, left, a between right back shell and left side, all be bolted between upper right lid and be integrated.
Air cooling twin-tub two pole of the present invention low noise diesel generator set, wherein, chassis is provided with bottom described outer casing, described chassis cavity is by first, in second, muscle is divided into a left side, in, right cavity, middle cavity is separate cavities, left cavity is exhaust cavity, right cavity is air-inlet cavity, left cavity be provided with exhaust port be in communication with the outside and left cavity by the heat extraction air holes on upper cover plate with the thermal wind exhausting channel connection on the shell of main frame hollow air channel, right cavity be provided with inlet hole be in communication with the outside and right cavity by the cold air inlet orifice on upper cover plate with enter cold air cavity A and be communicated with, tray bottom is left, the right side is separately installed with one group of directional wheel and one group of universal wheels.
Air cooling twin-tub two pole of the present invention low noise diesel generator set, wherein, described main frame hollow air channel shell internal surface posts fire-retardant noise reduction sponge, glass fibre and aluminium foil are posted in the base inboard of described internal box, before internal box, after, right, the position inwall that upper clapboard distributes chamber D corresponding with work hot gas posts 12mm flame-retardant sponge, outer wall posts 6mm flame-retardant sponge, top board internal surface posts flame-retardant sponge, glass fibre and aluminium foil is posted successively from inside to outside on the left of left clapboard, glass fibre is posted from inside to outside successively in right side, aluminium foil and flame-retardant sponge, before and after outer casing, outer casing inner wall all posts flame-retardant sponge, the upper cover plate on chassis inside and outside in both sides and first both sides of muscle all post glass fibre and aluminium foil.
Air cooling twin-tub two pole of the present invention low noise diesel generator set, wherein, described baffler assembly comprises be fixedly connected sequentially one, two, three, four, Pyatyi baffler, the first class sound arrester one end by Flange joint on the relief opening of diesel engine, the other end and secondary muffler are fixedly connected, the first class sound arrester is built with catalyst converter, one, secondary muffler is arranged in baffler thermal wind exhausting passage, three, level Four baffler is arranged in heat extraction air cavity E, in the left cavity that chassis is located at by Pyatyi baffler, level Four baffler is located in the left cavity on chassis, secondary muffler is bellows shock-absorbing baffler, level Four baffler is vertical baffler.。
Air cooling twin-tub two pole of the present invention low noise diesel generator set, wherein, the heat extraction air holes that outer casing is communicated with total heat extraction air cavity E is arranged on left outside shell, front casing and rear casing respectively, in outer casing with enter the cold wind mouth that enters that cold wind chamber A is communicated with and be arranged at respectively on right casing and front casing.
Air cooling twin-tub two pole of the present invention low noise diesel generator set, wherein, the exhaust port on the heat extraction air holes on the left outside shell of described outer casing and described left bank spiracular plate is crisscross arranged.
Air cooling twin-tub two pole of the present invention low noise diesel generator set, wherein, described main frame hollow air channel shell is assembled by some pieces of plate bodys, removably connects between each plate body.
Air cooling twin-tub two pole of the present invention low noise diesel generator set, wherein, forward and backward, the upper clapboard of described internal box is equipped with maintenance window, the output shaft of diesel engine is the axis of cone, the rotor shaft of generator is provided with corresponding axis of cone hole, and the output shaft end of diesel engine is placed in the axis of cone hole of generator rotor shaft.
After adopting such scheme, air cooling twin-tub two pole of the present invention low noise diesel generator set is arranged in the shell of main frame hollow air channel due to main frame, main frame hollow air channel shell is located in internal box, internal box is located in outer casing, therefore in the shell of main frame hollow air channel, between main frame hollow air channel shell and internal box, between internal box and outer casing, formation three grades is heat insulation, noise reduction, and the centrifugation blade on the right of diesel engine in wind scooper and a left side for ventilating fan, under the effect of the air bells exhauster on the left clapboard of right fan blade and internal box, in the shell of main frame hollow air channel, between main frame hollow air channel shell and internal box, circulating cooling wind is formed between internal box and outer casing, the heat produced in unit working procedure is taken away, ensure unit reliably working under close to the condition of ambient temperature, and keep original output power, and electrical apparatus element are arranged at entering in the A of cold wind chamber of unit right-hand member, can extend the working life of electrical apparatus element, leave gap between oil tank bottom and internal box upper clapboard, this gap, for entering cold air path A1, ensures that diesel oil is not vaporized.
Outer casing is divided into left and right outer casing, and left outside casing is removable, keeps in repair more convenient;
Outer casing is located on chassis, and hot gas is discharged behind chassis, further sound-deadening and noise-reducing, and tray bottom is provided with directional wheel and two universal wheelss, and is convenient to unit and moves integrally;
Fire-retardant noise reduction sponge, glass fibre and aluminium foil are posted in main frame hollow air channel shell, internal box, outer casing and chassis, reaches further sound-deadening and noise-reducing and heat insulation effect;
Baffler assembly comprises Pyatyi baffler, the gas that petrol engine is discharged meets emission compliance Europe 2 standard after the catalyst converter of the first class sound arrester, successively through a pair two pole baffler noise reduction shock-absorbings, again through the main baffler of the third level, after a pair fourth stage baffler, vertical duction enters the total baffler of level V, noise can be reduced and reach 55 decibels to 60 decibels and damping, the rated power of unit can not be caused again to decline.Baffler exhaust ports design has flange contact pin, and external baffler can be facilitated to use.
Exhaust port on heat extraction air holes on the left outside shell of outer casing and internal box left bank spiracular plate is crisscross arranged, while discharging hot air, reduce noise.
Main frame hollow air channel shell is assembled by some pieces of plate bodys, removably connects between each plate body, forward and backward, the upper clapboard of internal box is equipped with maintenance window, is convenient to detachable maintaining.
Accompanying drawing explanation
Fig. 1 is the front sectional view of air cooling twin-tub two pole of the present invention low noise diesel generator set;
Fig. 2 is that the M-M of Fig. 1 is to sectional view;
Fig. 3 is the plan view of air cooling twin-tub two pole low noise diesel generator set main of the present invention and main frame hollow air channel shell part;
Fig. 4 is air cooling twin-tub two pole of the present invention low noise diesel generator set plan view;
Fig. 5 is the plan view after low noise diesel generator set left outside casing in air cooling twin-tub two pole of the present invention is removed;
Fig. 6 is the left view of air cooling twin-tub two pole of the present invention low noise diesel generator set;
Fig. 7 is air cooling twin-tub two pole of the present invention low noise diesel generator set right elevation;
Fig. 8 is the plan view after the left outside casing of air cooling twin-tub two pole low noise diesel generator set of the present invention pulls open left.
Air cooling twin-tub two pole of the present invention low noise diesel generator set is illustrated below in conjunction with accompanying drawing.
Embodiment
As Fig. 1, shown in 2, air cooling twin-tub two pole of the present invention low noise diesel generator set comprises diesel engine 1, generator 2, the output shaft of diesel engine 1 is the axis of cone, the rotor shaft of generator 2 is provided with corresponding axis of cone hole, the output shaft end of diesel engine 1 is placed in the axis of cone hole of generator 2 rotor shaft, diesel engine 1 and generator 2 are connected to form main frame, main frame to be arranged in main frame hollow air channel shell 3 and generator 2 on a left side, diesel engine 1 is on the right side, main frame hollow air channel shell 3 is assembled by polylith plate body, removably connect between each plate body, main frame hollow air channel shell 3 is located in internal box 4, internal box 4 is located in outer casing 5, internal box 4 comprises base 41, left bank spiracular plate 42, left, right, upper clapboard 43, 44, 45 and front, rear bulkhead, as shown in Figure 5, front dividing plate 46, upper clapboard 45 and rear bulkhead are all hinged with maintenance window 47, left bank spiracular plate 42 is evenly equipped with exhaust port, left, right clapboard 43, vent is equipped with on 44, outer casing 5 comprises upper cover 51, base plate 52, left, right casing 53, 54, and it is front, rear casing, upper cover 51 is located at outer casing 5 top, chassis 6 is provided with bottom outer casing 5, fuel tank assembly 8 is provided with in upper cover 51, as shown in Figure 3, part near output shaft on diesel engine 1 is provided with end cap 12, end cap 12 be provided with into, exhaust port, the output shaft of diesel engine 1 is provided with ventilating fan 11, ventilating fan 11 is positioned at end cap 12, ventilating fan 11 is provided with a left side, right fan blade 111, 112, main frame hollow air channel shell 3 left end is closed, right-hand member opens wide, active chamber B is formed in main frame hollow air channel shell 3, the left part of the base plate 33 of main frame hollow air channel shell 3 is provided with into cold passageway 31, position near ventilating fan 11 on main frame hollow air channel shell 3 base plate 33 is provided with thermal wind exhausting passage 32, on the base plate 52 of outer casing 5, the position corresponding with thermal wind exhausting passage 32 is provided with exhaust port 57, thermal wind exhausting passage 32 is through the base of internal box 4, end is located at exhaust port 57 place of outer casing 5, form work hot gas between internal box 4 inwall and main frame hollow air channel shell 3 outer wall and distribute chamber D, total heat extraction air cavity E is formed between internal box 4 left bank spiracular plate 42 and left clapboard 43, the middle part of the left clapboard 43 of internal box 4 is provided with air bells exhauster 48, as Fig. 4, shown in 6, the left outside shell 53 of outer casing 5, front casing 55 is equipped with air outlet window, air outlet window is respectively equipped with left bank hot blast hole 531, front thermal wind exhausting hole 553 is communicated with total heat extraction air cavity E, the rear casing of outer casing 5 is provided with rear heat extraction air holes and is communicated with total heat extraction air cavity E, and the left bank hot blast hole 531 on the left outside shell 53 of outer casing 5 is crisscross arranged with the exhaust port on left bank spiracular plate 42, on the front dividing plate of internal box 4 with on outer casing 5 front casing 55 before corresponding position, thermal wind exhausting hole 553 be provided with interior heat extraction air holes, the position of interior heat extraction air holes and front thermal wind exhausting hole 553 mutual dislocation, formed between the right clapboard 44 of internal box 4 and the right casing 54 of outer casing 5 into cold wind chamber A, electrical apparatus element such as controller etc. is all arranged at in the A of cold wind chamber, as Fig. 4, shown in 7, be equipped with on the right front shell 552 of outer casing 5 and on right casing 54 into cold wind mouth 541 with enter cold wind chamber A and be communicated with, and enter cold wind chamber A and active chamber B, work hot gas distributes chamber D and is communicated with mutually, formed between internal box 4 top board 45 and the bottom of fuel tank assembly 8 into cold passageway A1, the spacing of the bottom of fuel tank assembly 8 and the top board 45 of internal box 4 is about 20mm, the upper cover 51 of outer casing 5 offers with enter that cold passageway A1 is connected enter cold wind mouth 511, formed into cold passageway A5 between the base 41 of internal box 4 and the bottom of main frame hollow air channel shell 3, enter cold passageway A5 and enter cold passageway 31 and be communicated with, distribute in the D of chamber at work hot gas and be provided with two baffler thermal wind exhausting passages 7, two groups of baffler assemblies 71 are located in two baffler thermal wind exhausting passages 7 respectively, two baffler thermal wind exhausting passages 7 are communicated with between total heat extraction air cavity E, the base 41 of internal box 4 and the base plate 52 of outer casing 5 are equipped with baffler passage.
As Fig. 1, shown in 2, chassis 6 inner chamber is by muscle 61 in the one the second, 62 are divided into a left side, in, right cavity 63, 64, 65, first, muscle 61 in second, 62 are welded in chassis 6 inner chamber, middle cavity 64 is separate cavities, left cavity 63 is exhaust cavity, right cavity 65 is air-inlet cavity, left cavity 63 is provided with exhaust port and is in communication with the outside and left cavity is communicated with the thermal wind exhausting passage 32 on main frame hollow air channel shell 3 by the heat extraction air holes on upper cover plate 66, right cavity 65 be provided with inlet hole be in communication with the outside and right cavity 65 by the cold air inlet orifice on upper cover plate 66 with enter cold air cavity A and be communicated with, left bottom chassis 6, the right side is separately installed with one group of directional wheel and one group of universal wheels.
Main frame hollow air channel shell 3 base plate 33 outer wall is equipped with antivibration pad 34, and antivibration pad 34 is secured by bolts on the base 41 of internal box 4, and the base 41 of internal box 4 is fixed on the base plate 52 of outer casing 5.
For convenience of maintenance, before outer casing 5, rear casing and upper cover are all divided into left and right two-part, and as shown in Figure 4, wherein front casing 55 is divided into a left side, right front shell 551, 552, rear casing is divided into a left side, right back shell, upper cover is divided into a left side, upper right lid, wherein left front shell 551, left back shell, left upper cover and left outside shell 53 form left outside casing, right front shell 552, right back shell, upper right lid and right casing 54 form right outside casing, and right outside casing is fixed on chassis 6, before internal box 4 base 41, rear edge is respectively equipped with front groove beam, pit beam, the lower limb of left front shell 551 and left back shell is located at front groove beam respectively, in pit beam, at described front groove beam, pit beam and left front shell, be equipped with ball bearing between left back shell lower limb, left outside bottom half is provided with pulley 554, left, right front shell 551, between 552, left, a between right back shell and left side, all be bolted between upper right lid and be integrated, as shown in Figure 8, left outside casing can pull open left, and left upper cover is also provided with suspension ring 512, and right outside casing is provided with pushing handle 513.Modular type controller panel is located on the switch gate on right casing 54, and storage battery is located at below modular type controller panel, and output slab is located at front casing lower right.
Main frame hollow air channel shell 3 internal surface posts the fire-retardant noise reduction sponge of 6mm, 8mm glass fibre and 0.2 aluminium foil are posted in base 41 inboard of described internal box 4, before internal box 4, after, right, the position inwall that upper clapboard distributes chamber D corresponding with work hot gas posts 12mm flame-retardant sponge, outer wall posts 6mm flame-retardant sponge, top board internal surface posts flame-retardant sponge, 8mm glass fibre and 0.35mm aluminium foil is posted from inside to outside successively on the left of left clapboard 43, glass fibre is posted from inside to outside successively in right side, aluminium foil and flame-retardant sponge, before and after outer casing 5, outer casing inner wall all posts 6mm flame-retardant sponge, the upper cover plate 66 on chassis 6 inside and outside in both sides and first both sides of muscle 61 all post 8mm glass fibre and 0.2mm aluminium foil.
As Fig. 1, shown in 2, often organize baffler assembly 71 and comprise one, two, three, four, Pyatyi baffler 72, 73, 74, 75, 76, the first class sound arrester 72 one end by Flange joint on the relief opening of diesel engine 1, the other end and secondary muffler 73 are welded to each other, the first class sound arrester 72 is built with catalyst converter, secondary muffler 73 is bellows baffler, secondary muffler 73 connects three successively, level Four baffler 74, 75, 76, one, secondary muffler 72, 73 are arranged in baffler thermal wind exhausting passage 7, three, level Four baffler 74, 75 are arranged in heat extraction air cavity E, Pyatyi baffler 76 is located in the left cavity 63 on chassis 6, and the relief opening of Pyatyi baffler 76 is provided with flange, secondary muffler is bellows shock-absorbing baffler, level Four baffler is vertical baffler.
Above-mentioned diesel engine 1 is 4 stroke diesel engine 3000 revs/min-3600 revs/min, and generator 2 is 50-60HZ synchronous generator.
Air cooling twin-tub two pole of the present invention low noise diesel generator set in the course of the work, centrifugation blade on the right of diesel engine 1 in wind scooper is responsible for pulling plate to enter wind major part row that cold wind mouth is drawn into after cylinder head heat radiation, E1 hot gas discharges E chamber to unit from baffler passage 7, and fraction is as diesel engine 1 outer surface heat transmission; The right fan blade 112 of the ventilating fan 11 in diesel engine 1 protecgulum, the left cavity 63 be responsible for heat B1, B2 that surface when generator 2 and diesel engine 1 work in main frame hollow air channel shell 3 is distributed drain into chassis 6 through right fan blade work through thermal wind exhausting passage 32 drains into outside unit again, and the inspiration A2 A3 A4 cool air when right fan blade 112 exhaust, take away the B1 B2 hot gas of part diesel engine 1 and the surperficial heat formation of generator 2, the left cavity 63 draining into chassis 6 through thermal wind exhausting passage 32 drains into outside unit again; The left fan blade 111 of ventilating fan 11 rotates, and cold wind sucks take away the work calories of stators and rotators in generator 2 through entering cold passageway A5, converts the left cavity 63 that B3 hot gas drains into chassis 6 through thermal wind exhausting passage 32 to and drains into outside unit again; Air bells exhauster 48 is responsible for the hot air pump drainage in the D chamber of internal box 4 to drain into outside unit to E chamber again, when air bells exhauster 48 works, the cool air that tapping sucks from internal box 4 right clapboard, takes away heat that main frame hollow air channel shell 3 outer surface distributes and the heat that baffler air channel 7 outer surface distributes and is converted to D1 D2 hot gas and is pumped to E chamber and drains into outside machine again.By said process, ensure that unit reliably working under close to the condition of ambient temperature, and keep original output power; The gas that diesel engine is discharged meets emission compliance Europe 2 standard after the first class sound arrester, successively through two, three, after level Four baffler, noise can be reduced and reach 55 decibels to 60 decibels, the rated power of unit can not be caused again to decline, by the effective control to unit noise, reach 60db/7m.Baffler relief opening is provided with flange simultaneously, and external baffler can be facilitated to use.
Internal layer is main frame hollow air channel shell 3, the mechanicalness noise produced when main frame hollow air channel shell 3 inwall pastes thick sponge for eliminating diesel engine and generator operation and heat insulation, and the first order forming unit is heat insulation, noise reduction; Main frame hollow air channel shell 3 wraps in wherein by internal box 4, and internal surface pastes thick sponge, left clapboard Double-face adhesive glass fibre and thick aluminum foil, and the formation second level is heat insulation, noise reduction; Internal box 4 surrounds wherein by outer casing 5, and the formation third level is heat insulation, noise reduction.
The above embodiment is described the preferred embodiment of the present invention; not scope of the present invention is limited; under not departing from the present invention and designing the prerequisite of spirit; the various distortion that the common engineers and technicians in related domain make technological scheme of the present invention and improvement, all should fall in protection domain that claims of the present invention determine.

Claims (10)

1. an air cooling twin-tub two pole low noise diesel generator set, comprise diesel engine (1), generator (2), the output shaft of diesel engine (1) and the rotor shaft of generator (2) are connected to form main frame, described main frame to be arranged in internal box (4) and generator (2) on a left side, diesel engine (1) is on the right side, internal box (4) is located in outer casing (5), it is characterized in that: in described internal box (4), be also provided with main frame hollow air channel shell (3), described main frame is arranged in main frame hollow air channel shell (3), main frame hollow air channel shell (3) left end is closed, right-hand member opens wide, active chamber B is formed in main frame hollow air channel shell (3), internal box (4) comprises base (41), left bank spiracular plate (42), left, right, upper clapboard (43, 44, 45) and front, rear bulkhead, left bank spiracular plate (42) is provided with exhaust port, left, right clapboard (43, 44) vent is equipped with on, outer casing (5) comprises upper cover (51), base plate (52), left, right casing (53, 54), and it is front, rear casing, upper cover (51) is located at outer casing (5) top, fuel tank assembly (8) is provided with in upper cover (51), the upper part near output shaft of diesel engine (1) is provided with end cap (12), end cap (12) be provided with into, exhaust port, the output shaft of diesel engine (1) is provided with ventilating fan (11), ventilating fan (11) is positioned on end cap (12), ventilating fan (11) is provided with a left side, right fan blade (111, 112), the left part of the base plate (33) in main frame hollow air channel shell (3) is provided with into cold passageway (31), the upper position near ventilating fan (11), main frame hollow air channel shell (3) base plate (33) is provided with thermal wind exhausting passage (32), the upper position corresponding with thermal wind exhausting passage (32) of base plate (52) of outer casing (5) is provided with exhaust port (57), thermal wind exhausting passage (32) is through the base (41) of internal box (4), end is located at exhaust port (57) place of outer casing (5), form work hot gas between internal box (4) inwall and main frame hollow air channel shell (3) outer wall and distribute chamber D, total heat extraction air cavity E is formed between internal box (4) left bank spiracular plate (42) and left clapboard (43), the left clapboard (43) of internal box (4) is provided with air bells exhauster (48), outer casing (5) is provided with heat extraction air holes and is communicated with total heat extraction air cavity E, formed between the right clapboard (44) of internal box (4) and the right casing (54) of outer casing (5) into cold wind chamber A, outer casing (5) be provided with into cold wind mouth with enter cold wind chamber A and be communicated with, and enter cold wind chamber A and active chamber B, work hot gas distributes chamber D and is communicated with mutually, formed into cold passageway A1 between internal box (4) top board (45) and fuel tank assembly (8) bottom, the upper cover (51) of outer casing (5) offers with enter that cold passageway A1 is connected enter cold wind mouth (511), formed into cold passageway A5 between the base (41) of internal box (4) and the bottom in main frame hollow air channel shell (3), enter cold passageway A5 and enter cold passageway (31) and be communicated with, distribute in the D of chamber at work hot gas and be provided with two baffler thermal wind exhausting passages (7), two groups of baffler assemblies (71) are located in two baffler thermal wind exhausting passages (7) respectively, two baffler thermal wind exhausting passages (7) are all communicated with total heat extraction air cavity E, the base (41) of internal box (4) and the base plate (52) of outer casing (5) are equipped with baffler passage, described baffler assembly (71) of often organizing comprises be fixedly connected sequentially one, two, three, four, Pyatyi baffler (72, 73, 74, 75, 76), the first class sound arrester (72) one end by Flange joint on the relief opening of diesel engine (1), the other end and secondary muffler (73) are fixedly connected, the first class sound arrester (72) is built with catalyst converter.
2. air cooling twin-tub two pole as claimed in claim 1 low noise diesel generator set, it is characterized in that: described main frame hollow air channel shell (3) base plate (33) outer wall is equipped with antivibration pad (34), antivibration pad (34) is secured by bolts on the base (41) of internal box (4), and the base (41) of internal box (4) is fixed on the base plate (52) of outer casing (5).
3. air cooling twin-tub two pole as claimed in claim 2 low noise diesel generator set, is characterized in that: before described outer casing (5), rear casing and upper cover are all divided into left and right two-part, and wherein front casing (55) is divided into a left side, right front shell (551, 552), rear casing is divided into a left side, right back shell, upper cover is divided into a left side, upper right lid, wherein left front shell (551), left back shell, left upper cover and left outside shell (53) form left outside casing, right front shell (552), right back shell, upper right lid and right casing (54) form right outside casing, and right outside casing is fixed on chassis (6), before internal box (4) base (41), rear edge is respectively equipped with front groove beam, pit beam, the lower limb of left front shell (551) and left back shell is located at front groove beam respectively, in pit beam, at described front groove beam, pit beam and left front shell, be equipped with ball bearing between left back shell lower limb, left outside bottom half is provided with pulley (554), left, right front shell (551, 552) between, left, a between right back shell and left side, all be bolted between upper right lid and be integrated.
4. air cooling twin-tub two pole as claimed in claim 3 low noise diesel generator set, it is characterized in that: described outer casing (5) bottom is provided with chassis (6), described chassis (6) inner chamber is by first, muscle (61 in second, 62) left side is divided into, in, right cavity (63, 64, 65), middle cavity (64) is separate cavities, left cavity (63) is exhaust cavity, right cavity (65) is air-inlet cavity, left cavity (63) is provided with exhaust port and is in communication with the outside and left cavity is communicated with the thermal wind exhausting passage (32) on main frame hollow air channel shell (3) by the heat extraction air holes on upper cover plate (66), right cavity (65) be provided with inlet hole be in communication with the outside and right cavity (65) by the cold air inlet orifice on upper cover plate (66) with enter cold air cavity A and be communicated with, bottom, chassis (6) is left, the right side is separately installed with one group of directional wheel and one group of universal wheels.
5. air cooling twin-tub two pole as claimed in claim 4 low noise diesel generator set, it is characterized in that: described main frame hollow air channel shell (3) internal surface posts fire-retardant noise reduction sponge, glass fibre and aluminium foil are posted in base (41) inboard of described internal box (4), before internal box (4), after, right, the position inwall that upper clapboard distributes chamber D corresponding with work hot gas posts 12mm flame-retardant sponge, outer wall posts 6mm flame-retardant sponge, top board internal surface posts flame-retardant sponge, glass fibre and aluminium foil are posted from inside to outside successively in left clapboard (43) left side, glass fibre is posted from inside to outside successively in right side, aluminium foil and flame-retardant sponge, before and after outer casing (5), outer casing inner wall all posts flame-retardant sponge, the upper cover plate (66) on chassis (6) inside and outside in both sides and first both sides of muscle (61) all post glass fibre and aluminium foil.
6. air cooling twin-tub two pole as claimed in claim 5 low noise diesel generator set, it is characterized in that: described I and II baffler (72,73) is arranged in baffler thermal wind exhausting passage (7), three, level Four baffler (74,75) is arranged in heat extraction air cavity E, Pyatyi baffler (76) is located in the left cavity (63) on chassis (6), secondary muffler is bellows shock-absorbing baffler, and level Four baffler is vertical baffler.
7. air cooling twin-tub two pole as claimed in claim 6 low noise diesel generator set, it is characterized in that: the upper heat extraction air holes be communicated with total heat extraction air cavity E of outer casing (5) is arranged on left outside shell (53), front casing (55) and rear casing respectively, outer casing (5) goes up and enters the cold wind mouth that enters that cold wind chamber A is communicated with and be arranged at respectively on right casing (54) and front casing (55).
8. air cooling twin-tub two pole as claimed in claim 7 low noise diesel generator set, is characterized in that: the heat extraction air holes on the left outside shell (53) of described outer casing (5) and the exhaust port on described left bank spiracular plate (42) are crisscross arranged.
9. air cooling twin-tub two pole as claimed in claim 8 low noise diesel generator set, is characterized in that: described main frame hollow air channel shell (3) is assembled by some pieces of plate bodys, removably connects between each plate body.
10. air cooling twin-tub two pole as claimed in claim 9 low noise diesel generator set, it is characterized in that: forward and backward, the upper clapboard of described internal box (4) is equipped with maintenance window, the output shaft of diesel engine (1) is the axis of cone, the rotor shaft of generator (2) is provided with corresponding axis of cone hole, and the output shaft end of diesel engine (1) is placed in the axis of cone hole of generator (2) rotor shaft.
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CN104564297A (en) * 2014-12-31 2015-04-29 无锡开普动力有限公司 Air-cooled structure of power generation set
CN109899157B (en) * 2019-03-26 2019-10-11 江苏台普动力机械有限公司 A kind of double cylinder wind cooling noise-reduced diesel generator group

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100242748B1 (en) * 1997-03-19 2000-03-02 곽종보 Cooling system for engine generator
CN201103465Y (en) * 2007-11-27 2008-08-20 力帆实业(集团)股份有限公司 Gasoline engine generator device
CN102192005A (en) * 2011-04-13 2011-09-21 双悦(福建)动力机械有限公司 Medium-sized double-cylinder air cooling super-silent gasoline generator set

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203067085U (en) * 2012-10-12 2013-07-17 苏州晨浩动力设备有限公司 Air-cooling double-cylinder dipolar low-noise diesel generating set

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100242748B1 (en) * 1997-03-19 2000-03-02 곽종보 Cooling system for engine generator
CN201103465Y (en) * 2007-11-27 2008-08-20 力帆实业(集团)股份有限公司 Gasoline engine generator device
CN102192005A (en) * 2011-04-13 2011-09-21 双悦(福建)动力机械有限公司 Medium-sized double-cylinder air cooling super-silent gasoline generator set

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