CN201466886U

CN201466886U - Open frame type digital generator

Info

Publication number: CN201466886U
Application number: CN2009201286231U
Authority: CN
Inventors: 何林; 周国兵
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-08-26
Filing date: 2009-08-26
Publication date: 2010-05-12
Anticipated expiration: 2019-08-26

Abstract

The utility model discloses an open frame type digital generator, which comprises an inverter, a generator, an engine and a muffler. The inverter, the generator, the engine and the muffler are arranged in sequence on a frame-shaped bracket; a cooling fan is arranged between the muffler and the side cover of the crankcase of the engine, is arranged to be coaxial with the output shaft of the engine and is driven by the engine to rotate; the cooling fan is also provided with a fan cover, the air inlet hole of the fan cover is arranged to be opposite to the crankcase and the side cover of the engine, and the air outlet hole of the fan cover is arranged to be opposite to the muffler. Since the novel centrifugal cooling fan forms a novel cooling air duct, the utility model can cool the engine which can not be well cooled in the prior art, and can also effectively cool the muffler and the heat shield part, thereby significantly reducing the temperature of the engine, the muffler and the heat shield part, achieving good cooling effect, and reducing the temperature of the whole digital generator. Therefore, the utility model can achieve high power capacity of the digital generator, and improve the overall performance of the digital generator.

Description

A kind of open-shelf digital electricity generating

Technical field

The utility model relates to the small generator field, particularly a kind of open-shelf digital electricity generating.

Background technology

Digital electricity generating is a kind ofly to produce electric energy by the engine driven generators synchronous working, by inverter the electric energy of this output is handled all very high small generators of performance such as getting frequency, waveform, voltage again.It is compared with common small generator, and its volume is smaller and more exquisite, more reliable performance, and the power supply quality is higher.

Has only a cooling fan in the existing digital electricity generating group mostly, and the heat generating components in the unit is many, as engine, generator, inverter and muffler etc., these heat generating components are all dispelled the heat by a cooling fan, air channel design, topology layout all are very difficult, be that structural design is very complicated, cost is high, or be to reduce engine power to use, be difficult in and solve the too high problem of temperature rise under the engine fully loaded situation.

So at present, how to provide a kind of cooling effect better, can reduce the digital electricity generating bulk temperature, thus the open-shelf digital electricity generating that makes the whole generator performance get a promotion, just becoming the present technique field has a difficult problem to be solved.

The utility model content

Technical problem to be solved in the utility model is, in order to overcome above-mentioned the deficiencies in the prior art, and provides a kind of cooling effect better, can reduce the open-shelf digital electricity generating of whole generator temperature.

In order to solve the problems of the technologies described above, adopted following technical scheme in the utility model: a kind of open-shelf digital electricity generating, comprise and being located on the frame support, and being arranged in order inverter, generator, engine and the muffler of setting, the rotor of generator is provided with a cooling fan coaxial with engine crankshaft; It is characterized in that, be provided with a cooling blower between muffler and engine crankcase side cover, described cooling blower is coaxial and by its driven rotary with engine output shaft; Described cooling blower is provided with fan housing, and the fresh air inlet of fan housing is relative with described engine crankcase and side cover, and the exhaust vent of fan housing is relative with muffler.

Further, described cooling blower is centrifugal cooling blower.

Improvements of the present utility model are, on the basis of existing digital electricity generating structure, creatively set up a centrifugal cooling blower between engine and muffler.Like this, because the fresh air inlet of fan housing is in a side adjacent with engine, distinguished and admirablely when air intake, can cool off so fan is formed engine, and the exhaust vent of fan housing is in a side adjacent with muffler, so distinguished and admirable air-out can be cooled off muffler, make the heat of muffler and heat shield part to be taken away, its temperature is reduced by distinguished and admirable.

In sum, than prior art, the centrifugal cooling blower that the utility model is newly established has formed new cooling air channel, can be to bad engine be cooled off of script cooling effect, and muffler and heat shield partly effectively cool off, and makes that the temperature of engine, muffler and heat shield part is significantly descended, good cooling results, reduced the digital electricity generating bulk temperature, the digital electricity generating generated output just can design De Genggao like this, has improved the digital electricity generating overall performance.

Description of drawings

Fig. 1 is a perspective view of the present utility model.

Fig. 2 is the sectional perspective structural representation that has shifted out behind the top of the panel of the fuel tank at top and side and frame support, mainly shown the layout structure of engine, generator, inverter, muffler and newly-increased cooling blower.

Fig. 3 is on Fig. 2 basis, has indicated the cooling fan and the formed air channel of the cooling blower flow direction with arrow, can represent cooling system of the present utility model; Wherein cooling blower has part-structure to cut open to demonstrate the structure of its inner cooling blower, and the flow direction that shows inner muffler structure and cooling air with clear is removed on heat shield top simultaneously.

Fig. 4 is the structural representation of cooling blower blade in the utility model.

Among the figure, 1-frame support, 2-engine, 3-generator, 4-inverter, 5-muffler, the 6-cooling fan, 7-cooling blower, 8-air outlet, 9-air inlet, 10-heat shield, 11-control panel, the 12-fuel tank, 14-fan housing, 15-fresh air inlet, 16-air outlet, 17-draught fan impeller, 18-blade.

Embodiment

The utility model is described in further detail below in conjunction with the drawings and specific embodiments.

During concrete enforcement, can be as depicted in figs. 1 and 2, a kind of open-shelf digital electricity generating comprises:

A frame support 1 that plays the integrated support effect, described frame support 1 is for open architecture upwards and possess certain damping performance;

Be arranged at engine 2 on the frame support 1 and one with the coaxial setting of engine crankshaft and by engine-driven generator 3; Look up from side shown in Figure 2, engine 2 is positioned at the middle part in frame support 1 whole space, and generator 3 is positioned at position, engine 2 left side;

Be arranged at the inverter 4 of generator 3 one sides on the frame support 1, from Fig. 2, the recoil actuator assembly that inverter 4 is arranged at frame support 1 Far Left and engine 2 be arranged in parallel;

The rotor of generator 3 be provided with one with engine crankshaft coaxial and with inverter 4 adjacent cooling fan 6 and fan housings thereof, a side adjacent with the fin of inverter 4 on this fan housing is provided with air inlet 9, and the waste gas exhaust duct adjacent of opposite side and engine 2 sets out air port 8; Generator 3 is positioned among the described fan housing, generator amature, cooling fan 6 can and the bent axle rotation synchronously together of engine 2; Inverter 4 can cool off in air intake place, described cooling fan 6 formed air channel, and cool off generator 3 fan housing inside, but air-out cooled engine 2 and muffler and exhaust pipe.

Be arranged on the frame support 1 engine 2 one sides and be connected with muffler 5 with the engine exhaust emission pipe, and be arranged at the outer heat shield 10 of muffler 5, heat shield 10 upper positions are roughly concordant with engine 2 tops, and heat shield 10 is for removably being fixed on the muffler 5;

Vertically be arranged at the control panel 12 of frame support 1 side, described control panel 12 is provided with two, a panel is positioned on the length direction of frame support, and a side near generator 3 crankcase positions, switch, indicator light, startup handle and the contents such as sign and explanation used for the operator are set on it, another is positioned on the frame support Width, and adjacent with inverter 4, arranges accessory power outlet on it;

Be arranged at frame support 1 top and the whole fuel tank 12 that covers above-mentioned engine 2, generator 3, inverter 4, heat shield 10 and control panel 11, fuel tank 12 is positioned at this open-shelf digital electricity generating entire top zone, and is fixed on the frame support 1;

Improvement of the present utility model is, is provided with a cooling blower 7 between muffler 5 and engine 2 crankcase side covers, and described cooling blower 7 is coaxial and by its driven rotary with engine output shaft; Described cooling blower 7 is provided with fan housing 14, and the fresh air inlet 15 of fan housing 14 is relative with described engine crankcase and side cover, and the exhaust vent 16 of fan housing 14 is relative with muffler 5.

Like this, because fan housing 14 fresh air inlets of centrifugal cooling blower 7 are in a side adjacent with engine, distinguished and admirablely when air intake, can cool off so fan is formed engine, and the exhaust vent 15 of fan housing 14 is in a side adjacent with muffler 5, so distinguished and admirable air-out can be cooled off muffler 5, make the heat of muffler 5 and heat shield 10 parts to be taken away, its temperature is reduced by distinguished and admirable.

The concrete structure of described cooling blower 7 comprises an annular matrix 17 and evenly is arranged at arc shaped blade 18 on the matrix as shown in Figure 4, directly matrix 17 inner ring sleeves established to be fixed on when mounted it is rotated with rotating shaft, can produce centrifugal distinguished and admirable; Simultaneously, cooling fan 6 also can adopt same structure.

As shown in Figure 3, can show in the utility model air channel and wind direction by two cooling systems of cooling fan 6 and cooling blower 7 each self-forming, engine 2 start ends are formed first centrifugal fan together by rotor, cooling fan 6 and fan housing, because the central area of centrifugal cooling fan 6 is subjected to a bigger negative pressure, so extraneous air can suck effectively by the air inlet of fan housing, inverter 4 is arranged in the air inlet place of fan housing simultaneously, forms a cooling air channels between the air inlet of inverter 4 and fan housing.During generating set work, the heat transferred that inverter 4 produces is to the fin of inverter shell, cooling air by cooling air channels is taken away, thereby reach the purpose of inverter 2 heat radiations, after cooling air enters in the fan housing by air inlet, but cooled electric generator 3, cooling air in fan housing tangentially the outlet of direction enter in the fin of engine 2 cylinder bodies and cylinder head, but the cylinder body of cooled engine 2, cylinder head and crankcase.

The cooling blower 7 of engine 2 outputs and fan housing 14 are formed second centrifugal blower, it is same because the central area of centrifugal cooling fan 7 is subjected to a bigger negative pressure, so extraneous air can suck effectively by the fresh air inlet 15 of fan housing 14 middle parts, simultaneously just there is cooling air to flow through in the cooling air channels of forming by engine 2 crankcase side covers and fan housing air intake surface, the heat that produces during engine 2 work will be delivered on crankcase body and the side cover, take away by the cooling air in the cooling air channels, after cooling air enters into this fan housing inside by described cooling air channels, flow out air outlet 16 in the effect lower edge of centrifugal cooling blower cooling blower 7 tangent to periphery directions.Cooling air is from entering the cooling air channels that muffler 5 and heat shield 10 form after air outlet 16 flows out, thereby takes away the purpose that heat that muffler 5 produces reaches cooling muffler 5.

Have again,, between heat shield 10 and muffler 5, have cooling air to pass through owing on the muffler 5 heat shield 10 is arranged, so the heat that produces of muffler 5 with regard to can not be a large amount of be delivered to fuel tank 12 bottoms.Will reduce the thermal effect of fuel tank 12 bottoms significantly.In addition, the final discharge position of cooling air is away from control panel 11 positions of Blast Furnace Top Gas Recovery Turbine Unit (TRT), and the heat that muffler 5 produces just can not flow to control panel 11.

Because whole this layout: the center of gravity of engine 2 and the assembly that links to each other with engine is positioned among the definite zone of frame support 1, center of gravity also is located in the centre position of frame support 1 so, so this Blast Furnace Top Gas Recovery Turbine Unit (TRT) has just obtained good weight balancing, makes this Blast Furnace Top Gas Recovery Turbine Unit (TRT) can carry very easily, load and unload and transport.

Need to prove at last, the place that the utility model is made creative contribution for prior art is on the basis of existing digital electricity generating layout structure, creatively between engine and muffler, set up a centrifugal cooling blower that constitutes by cooling blower and fan housing, thereby heat generating components such as the engine of logarithmic code generating set, generator, inverter and muffler carry out efficiently radiates heat.The utility model topology layout and air channel are reasonable in design, and simple in structure, cost is lower, guarantees the raising of engine power by effective reduction temperature.

So protection range of the present utility model is not restricted to this execution mode; can also in the described protection range of claim 1, make all changes that is equal to. specifically; as long as others' digital electricity generating integral layout is to have adopted the described layout of the utility model claim 1; also cooling fan and fan housing have been set up simultaneously at correspondence position; and needn't manage its each concrete parts any different improvement is arranged self; the concrete structure that also needn't manage its cooling fan or fan housing has anything to change, and all should be considered as falling into protection range of the present utility model.

Claims

1. open-shelf digital electricity generating, comprise and being located on the frame support (1), and being arranged in order inverter (4), generator (3), engine (2) and the muffler (5) of setting, the rotor of generator (3) is provided with a cooling fan coaxial with engine crankshaft (6); It is characterized in that, be positioned between muffler (5) and engine (2) the crankcase side cover and be provided with a cooling blower (7) that described cooling blower (7) is coaxial and by its driven rotary with engine output shaft; Described cooling blower (7) is provided with fan housing (14), and the fresh air inlet (15) of fan housing (14) is relative with described engine crankcase and side cover, and the exhaust vent (16) of fan housing (14) is relative with muffler (5).

2. open-shelf digital electricity generating according to claim 1 is characterized in that, described cooling blower (7) is centrifugal cooling blower.