Be convenient to the quiet case apparatus of generator set container-type that transports and install
Technical field
The utility model relates to the denoising device of generator set, specifically belongs to the quiet case of noise reduction of generator set.
Background technique
Modern society is more and more stronger to the dependence of electric power, and various electric equipments need the stable power supply that continues, and is especially commercial, bank, hospital facility.But because energy scarcity and peak of power consumption undersupply often have and stop powering-off state.Generator set this moment power supply has in support guaranteed the normal operation of equipment.But it is very big to produce noise during generator set work, has directly influenced people's work and life, and market presses for the as far as possible little generator set of noise.Simultaneously because the large and medium generator group is bulky, transport comparatively constant, when transportation, need adopt shipping container or specialized package, need to disassemble packing after being transported to the destination, install then and carry out work, it is numerous and diverse that formality not only is installed, and lose time, especially do not fit into and speedily carry out rescue work, urgencies such as rescue.
The quiet case of generator set is of a great variety on the current market, but at the quiet case kind of big-and-middle-sized unit, lays particular emphasis on the design of denoising structure, and ignores or sacrificed the convenience that transportation is installed, and box sizes and structure be standard very not, is not easy to actual shipment and installs.Disclose the quiet case apparatus of a kind of generator set as practical novel C N 2918755, had quiet preferably effect.In this device, generator set is arranged in air intake denoising device, casing, smoke-ejecting pipe baffler, the formed sound-absorbing of the air draft denoising device space.Box inside wall and air draft dividing plate are provided with sound absorbing material; Door and window peripheral is equipped with Stamping Steel Ribbon and forms a sound-absorbing space, reduces noise effectively to external radiation.Because in order to guarantee heat dispersion, perforates such as intake grill, exhaust port, internal-combustion engine smoke-ejecting pipe must be set on tank surface, noise very easily spreads out of from these tappings, so the noise-reducing design of these perforates is keys of the whole quiet case noise reduction of influence.This device intake grill baffler and exhaust port baffler are made of the bloop of three-decker, and outside need is provided with the stormproof louvre window; The bloop of exhaust port baffler is shaped as folded plate type, closely is filled in the afterbody of casing; This intake grill baffler and exhaust port muffler structure are comparatively complicated, and floor space is big, install inconvenient.Internal-combustion engine smoke evacuation baffler is placed on the smoke-ejecting pipe of generator set, is positioned at the outside, top side of casing.This external smoke evacuation muffler structure makes a part of engine noise can not farthest reduce noise at the outside noise reduction of quiet case.Be not easy to sea-freight, land transportation simultaneously, the cost of transportation height can not satisfy the requirement in market fully.
The model utility content
The utility model is quick economical, easy to install to generator set transportation at the user, and the requirement that noise is little provides a kind of quiet case apparatus of generator set container-type of transporting and installing be convenient to.
For achieving the above object, the technical solution of the utility model is as follows: whole generator set is arranged on the interior volume of being made up of casing, air intake sound-deadening louver, exhaust muffler for internal combustion engine, air draft sound-deadening louver, exhaust muffler for internal combustion engine is installed in the casing inside top, be connected with internal-combustion engine vent-pipe, the muffler bottom is provided with bloop.
Box back of the present utility model is provided with air intake noise reduction stormproof louvre window, front end is provided with air draft noise reduction stormproof louvre window, air intake noise reduction stormproof louvre window and air draft noise reduction stormproof louvre window are spaced in being configured to by bloop respectively, bloop be shaped as man type.
The bloop of above-mentioned exhaust muffler for internal combustion engine bottom bloop and noise reduction stormproof louvre window adopts following sound-absorbing structure: a side is a steel plate, and a side is a stephanoporate steel plate, and described two steel plates are connected, between filling porous sound-absorbing material.
At the water tank front end sound insulation wind scooper is set, the two-sided subsides sound-absorbing material of sound insulation wind scooper panel.
Air draft noise reduction stormproof louvre window and sound insulation are provided with guide plate between the wind scooper, the parallel guide vane of tilting device at interval on the guide plate, and the angle of inclination of guide vane is perpendicular with the inner side edge of the man type bloop of air draft noise reduction stormproof louvre window.
The beneficial effects of the utility model are transportation and mobile convenient, economy; Be convenient to installation, maintenance and regular job; Energy-saving and noise-reducing is effective, and this device can be directly as the standard case sea-freight, transportation and mobile convenient economy; Compact structure is reasonable, and user's regular job and output cable are plugged into convenient and swift, can put into operation at once in the generator set scene of being transported to; Perfect heat-dissipating, and can more effectively reduce noise, for medium-sized generator set, noise is reduced to below the 75dB in the short range.Can be widely used in occasions such as oil field, open-air engineering, industrial enterprise.
Description of drawings
Fig. 1 is the utility model master pseudosection;
Fig. 2 is the utility model top plan view;
Fig. 3 is the utility model left view.
Embodiment
As shown in Figure 1 to Figure 3, the utility model comprises: casing 1, air intake noise reduction stormproof louvre window 2, exhaust muffler for internal combustion engine 3, sound insulation wind scooper 4, air draft noise reduction stormproof louvre window 5, manger board 6, access door 7, control panel 8, output switch bucket 9, maintenance ladder 10, generator 11, internal-combustion engine 12, fan 13, water tank 14, exhaust muffler for internal combustion engine bloop 15, guide plate 16, guide vane 17, bloop inner side edge 18.
Generator set mainly comprises water tank 14, fan 13, internal-combustion engine 12, generator 11, is arranged on the interior volume of being made up of casing 1, air intake noise reduction stormproof louvre window 2, exhaust muffler for internal combustion engine 3, sound insulation wind scooper 4.Casing 1 wallboard is the sound-absorbing structure of plate-air-plate, and the outside is a steel plate, and the inboard is a stephanoporate steel plate, the filling porous sound-absorbing material of air layer; Door and cable perforation etc. locate to carry out special encapsulation process, form a noise elimination part, and absorption, barrier noise are to external radiation effectively.
Internal-combustion engine smoke-ejecting pipe baffler 3 is the baffler of high performance impedance composite, be lifted on inside, casing top side, do not take space outerpace, be provided with acoustical panel 15 in the baffler bottom simultaneously, its structure is the sound-absorbing structure of plate-air-plate, the inboard is a steel plate, and the outside is a stephanoporate steel plate, the filling porous sound-absorbing material of air layer.Interior noise can effectively be absorbed and be reflected.Exhaust muffler for internal combustion engine 3 adopts the square baffler of a impedance composite, insert loss greater than 25dB, and back pressure is lower than 2.5Kpa.Exhaust muffler for internal combustion engine 3 bottom bloops 15 adopt following sound-absorbing structure: inboard be steel plate, and the outside is a stephanoporate steel plate, and described two steel plates adopt and have known technology as riveting or the crimping mode is connected, between fill rock wool, acoustic absorptivity is 0.8.
Two ends at casing all are provided with bisect door, and air intake noise reduction stormproof louvre window 2 and air draft noise reduction stormproof louvre window 5 are set respectively on door, and compact structure rationally, is convenient to generator set and is installed and keep in repair.The blade (bloop) of air intake noise reduction stormproof louvre window 2 and air draft noise reduction stormproof louvre window 5 adopts the sound-absorbing structure of plate-air-plate, and upside is a steel plate, and downside is a stephanoporate steel plate, the filling porous sound-absorbing material of air layer; Blade be shaped as man type, be to increase sound-absorbing length on the one hand, can avoid sound directly to spread out of on the other hand, can play the effect of anti-rainwater simultaneously.This air intake stormproof louvre window and the two-in-one design proposal of suction silencer, can save installing space to greatest extent.Manger board 6 is arranged on the inboard of air intake noise reduction stormproof louvre window 2 and air draft noise reduction stormproof louvre window 5, can stop the intrusion of wave when sea-freight effectively; Its structure is a plug-in type, can extract easily, is convenient to mounting or dismounting.In the embodiment, air intake noise reduction stormproof louvre window 2 has three, and lay respectively on casing 1 rear end bisect door and the back left sideboard: air draft noise reduction stormproof louvre window 5 has two, lays respectively on the casing 1 front end bisect door; At air intake noise reduction stormproof louvre window 2 and air draft noise reduction stormproof louvre window 5 inboards manger board 6 is set all.Noise reduction stormproof louvre window is spaced by bloop and forms, bloop be shaped as man type, sound absorption length is 400mm, thickness is 30mm, channel width is 70-85mm, 90 °-100 ° of angles.Every bloop adopts following sound-absorbing structure: a side is a steel plate, and a side is a stephanoporate steel plate, and described two steel plates adopt existing known technology to be connected as riveted joint or crimping mode, between fill rock wool, acoustic absorptivity is 0.8.
At the water tank front end sound insulation wind scooper (the two-sided subsides sound-absorbing material of plate) is set; can stop effectively that the noise except that air draft is to the radiation of air draft chamber in the noise elimination part; the two-sided subsides sound-absorbing material of the plate of sound insulation wind scooper; with casing; the space (air draft chamber) that air draft noise reduction stormproof louvre window shape becomes is actually a resistant noise-reducing device; increasing exhaust chamber (raising expansion ratio) as far as possible; can make the radiation fan of internal-combustion engine promptly cool off radiator makes the force air in the unit noise elimination part discharge again; and do not reflux; avoided the temperature rise in the noise elimination part; guarantee the output power of unit, improve noise reduction simultaneously.In the embodiment, water tank 14 front ends are provided with sound insulation wind scooper 4, its two-sided subsides sound-absorbing material, and acoustic absorptivity is 0.8.
Between sound insulation wind scooper and air draft noise reduction stormproof louvre window, guide plate is set, guide plate blade lean angle is perpendicular to the inboard tabs angle of air draft venetian blind bloop, make like this that noise can not leak to the casing outside directly into injecting the interval between the air draft noise reduction stormproof louvre window bloop in the air draft chamber, but guiding noise incident direction, it is vertically clashed into to the tabs of air draft noise reduction stormproof louvre window bloop inboard, thus absorption of noise efficiently.As shown in Figure 1: between air draft noise reduction stormproof louvre window 5 and the sound insulation wind scooper 4 guide plate 16 is set, the parallel guide vane 17 of tilting device at interval on the guide plate 16, the angle of inclination of described guide vane 17 are perpendicular with the inner side edge 18 of the man type bloop of air draft noise reduction stormproof louvre window 5.
Access door 7 has two fans, lays respectively at casing 1 both sides, and door-plate adopts the complex sound insulation plate structure, and outer surface is a steel plate, and internal surface is a stephanoporate steel plate, middle filling rock wool, and acoustic absorptivity is 0.8.Adorn Stamping Steel Ribbon on the doorframe, reduce noise effectively to external radiation.Maintenance ladder 10 is positioned at casing 1 side, is convenient to the mounting or dismounting of lifting of exhaust muffler for internal combustion engine 3 and generator set and smoke-ejecting pipe etc.Control panel 8, output switch bucket 9 abut against together, are placed on casing 1 side plate, are convenient to plugging into of user's regular job and output cable.
This example has been made finished product, by test and actual the use, can reduce to below the 75dB complete environmentally acceptable requirement for the noise of medium-sized generator set.