Background technique:
Internal-combustion piston engine is since coming out the sixties in 19th century, obtained to use widely, the recoverable amount of internal-combustion engine ranks first in dynamic power machine in the world, it occupies important status in mankind's activity, though through updating and developing, internal-combustion engine is in very big raisings in aspect such as design, manufacturing, technology, performances, the utilization ratio diesel engine of fuel of internal combustion engine has only 30% ~ 40%, petrol engine is lower, only has 25% ~ 30%.Because the fuel of internal-combustion engine use at present comes up substantially from non-renewable petroleum resources, the effective rate of utilization that improves fuel is significant.
The basic principle of internal-combustion engine is exactly as an energy transfer mechanism with internal-combustion engine, exactly air and gasoline are mixed into mixed gas in certain proportion as petrol engine, be inhaled into cylinder at intake stroke, the compressed ignition of mixed gas and produce heat energy, the gas of High Temperature High Pressure acts on piston head, the promotion piston does reciprocating linear motion, by connecting rod, the external output mechanical energy of crankshaft-flywheel mechanism.In this process, fuel combustion and the heat energy that produces has only small part to be converted to mechanical energy is most ofly discharged by engine exhaust port, through air outlet duct system thermal waste is fallen.
Summary of the invention:
The utility model is used for internal-combustion engine is discharged this part heat energy that slatterns by vent systems when work collection and utilization, is a kind of collection and utilized device to internal-combustion engine waste heat energy.
It is the sealing and circulating turbine electricity generation system of circulating carrier with the organic working medium that this device is one, mainly partly form by steam generator, turbogenerator, condenser etc., import steam generator by internal combustion engine exhaust system being discharged heat energy, liquid organic working medium to the sealing and circulating turbine electricity generation system is conducted heating, organic working medium is evaporated after heating and is imported turbine, turbine rotation drives integral shaft generator and produces electric energy, realize the recovery and the utilization of waste heat energy in the internal combustion engine, improve the fuel oil effective rate of utilization.
Sealing and circulating turbine electricity generation system working principle is as follows: the liquid organic working medium in the steam generator is evaporated after heating, import turbine through gas pipeline, turbine rotation drives integral shaft generator and produces Ac, organic working medium enters in the condenser then to be cooled off, liquefy, finally get back to steam generator, finish a complete circulation.As long as constantly heat, will continue to produce electric current to steam generator.Be the purpose that realizes utilizing engine exhaust heat liquid towards organic working medium to heat, the utility model partly designs especially to the steam generator of sealing and circulating turbine electricity generation system, in the steam generator cavity, penetrate metallic conduit, pipeline goes out population two ends outer wall and steam generator shell does not have seam welding, make this metal pipe internal wall and outer wall isolated mutually, wherein the liquid organic working medium in pipeline outer wall and the steam generator contacts, and is isolated with the pipeline hollow space.The two ends of pipeline are respectively flange-interfaces, and an end is used to connect the I. C. engine exhaust door, and the other end is used to connect vent systems rear pipelines such as baffler.When two ends respectively with exhaust manifold for internal combustion engine with after vent systems rear pipeline is connected, the stroke of the high-temperature gas that exhaust valve is discharged during internal combustion engine is exactly to arrive baffler by gas exhaust manifold again to the pipeline that passes through sealing and circulating turbine electricity generation system steam generator, enters atmosphere at last.In this process, high-temperature gas conducts heat energy by metal pipe-wall when running through the pipeline of steam generator to organic working medium, this segment pipe plays the effect of liquid organic working medium heater in the steam generator, after liquid organic working medium obtains heating, evaporation also imports the turbine expansion acting, turbine rotation drives integral shaft generator and produces Ac, the entry into service of sealing and circulating turbine electricity generation system, and high-temperature gas is flowed through and is descended because of the heat loss temperature behind this section, and the heat energy that gas loses is transformed into the kinetic energy that drives turbogenerator.In the system, organic working medium adopts pentane or the similar chemical product of physical property, its boiling point is 36.1 ℃, vapor density is 2.48 times of air, adopt reduced size turbine and lower rotating speed just can provide enough kinetic energy for integral shaft generator, the critical temperature of pentane is 196.4 ℃, adopt the condenser of smaller size smaller just can utilize air flows to realize condensation, and its solidifying point is subzero 73 ℃, therefore under cold climate, still can dispel the heat, do not need to increase the antifreeze facility of condenser, do not influence the electric weight output of generator yet.
Be efficient, assurance system and the internal-combustion engine coordination operation of collecting heat energy to greatest extent, improving the sealing and circulating turbine electricity generation system, the utility model can also design especially in following link: the one, the pipeline that runs through steam generator is done the screw type design, pipeline is spirality but not straight tube, with the surface area that increases the heating of liquid towards organic working medium, carries out heat exchange, the volute design can also play damping function to high-temperature gas, also makes things convenient for and pass through " cleaning item " when carbon distribution is cleared up in to pipeline in pipeline.Can change for making the pipeline that runs through steam generator, two parts up and down that also steam generator can be designed to separate, clamp the entrance end of pipeline, can take off pipeline during separation and change or clear up, two-part butt joint bead adopts flange to connect, and guarantees to dock the sealing of back steam generator integral body, in particular cases, can also adopt the multitube combination, pass through, merge at entrance end with some independent metal tubes are parallel.The design principle that runs through steam generator pipe is to collect internal combustion engine exhaust system heat energy under the prerequisite that does not influence normal exhaust needs in the internal combustion engine as far as possible; The 2nd, for the internal-combustion engine of multi cylinder, because the surface area of gas exhaust manifold is big, for manifold body forfeiture heat energy is collected utilization, manifold is retrofited, at burnishing surface of manifold surface design, this burnishing surface can be close to the steam generator outer casing bottom, and steam generator is carried out external heat; The 3rd, in the design of sealing and circulating turbine electricity generation system, steam generator steam can be derived respectively with some arms, each arm is established independently turbine generation group, avoid the restriction of technical order, production technology and processing cost big and that may occur with single integral shaft generator with single turbine generation group monomer volume, be used on the traffic tool such as automobile, can also the sealing and circulating turbine electricity generation system be carried out rational deployment according to accommodation space; The 4th, to the liquid line design of organic working medium after condenser is cooled to liquid state, liquid organic working medium is divided into 2 tributaries is back to steam generator again, tributary internal combustion engine cylinders cooling jacket of flowing through wherein, replace original water cooling that internal-combustion engine is cooled off, also play simultaneously the effect of internal-combustion engine waste thermal energy collecting, electric pump is established in this tributary, by the cylinder temperature sensor control flow rate, make internal-combustion engine keep optimum working state, another tributary integral shaft generator place separate space of flowing through is lowered the temperature to motor and bearing.Liquid organic working medium liquid level remains on normal height in the steam generator in order to make, and the liquid line end is established electric pump, according to the SC sigmal control flow of liquid level detection device in the steam generator.By these designs, the heat energy that internal combustion engine is produced is collected utilization to greatest extent, and the assurance system runs well.The utility model each several part can be processed separately, at last assembling.Pipe shape, length such as condenser, liquid stream can be adjusted according to the needs of Environmental Conditions, and available joint connects between the pipeline.
The utility model can be used on all dynamic power machines that adopt internal-combustion engine.Use at the internal-combustion engine train, the electric power that obtains can be directly used in electric equipments such as illumination, on internal-combustion engine baby plane, boats and ships, vehicle, use, the electric power of acquisition both can the single driving motor as auxiliary power, also can adopt mixed form to replenish or strengthen former dynamic.Because the gaseous state organic working medium can absorb heat in the condenser condenses process, by to the condensation tube rational deployment, directly cooling gas air-conditioning and freezing, cold storage plant utilization use.As be used on the oily electric hybrid vehicle, when engine operation, electric energy is collected and be converted into to motor waste heat energy and become power by the utility model, motor can produce more electric energy power supply motivation and use under original working state, power is improved, if keep original motivation level, motor can reduce output power, mean with fuel consume still less and just can keep original automobile power level, can make the heat energy of original waste obtain recycling by the utility model, thereby realize purpose of energy saving.
The utility model applies to internal-combustion engine; the transformation of energy that not only can not be converted into mechanical energy to the heat energy of internal-combustion engine own produces negative influence; but also can to internal-combustion engine particularly the exhaust valve end play the effect of cooling; positive effect is played in own normal operation to internal-combustion engine; energy obtained discharging after high-temperature gas passes ran through the pipeline of steam generator; sonic boom can reduce; the noise index of internal combustion engine can descend; the utility model has absorbed the heat of script to airborne release, is also playing useful effect aspect the protection environment.
Embodiment:
It below is the concrete scheme of utilizing an electric hybrid vehicle of oil of the present utility model.See Fig. 2, this scheme is used in the utility model on the electric hybrid vehicle of tandem oil.With reference to domestic certain pure electric automobile index, adopt the 48V/4KW motor, complete vehicle weight 850KG, scooter is 65 kilometers when the fastest.Satisfy this index, the gasoline engine generator of configuration of automobiles peak power 4kw, the sealing and circulating turbine electricity generation system of the every branch road 500w of lift-launch the utility model two steam branch roads generator provides power for motor jointly.Accumulator uses the super capacitor group, compares high nearly ten times of the power ratio common batteries that super capacitor can abrupt release with storage battery, and can not damage, charging is rapid, fast tens times than common batteries of speed, charge and discharge circulation life is more than 100,000 times, and is pollution-free, non-maintaining.Though the storage battery that the reserve of electricity specific volume is suitable is little, but the super capacitor group mainly plays the effect of electric weight equalizer in this programme, between motor and the utility model generation electric energy and motor consumed power, carry out equilibrium, the electric energy that produces accumulate during greater than the electric energy that consumes, the electric energy that produces discharges during less than the electric energy that consumes, by super capacitor group reserve of electricity and motor operating current are monitored, the output power of feedback command control motor, when not enough and motor operating current is big when super capacitor group reserve of electricity, strengthen the output power of motor, otherwise reduce the output power of motor, the super capacitor group is as accumulator, is used for vehicle launch and quickens just passable as long as can keep engine operation a few minutes separately.Adopt the super capacitor group of 72F/60V in this example, capacity is about 3AH, and this super capacitor group is full of under the electricity and is discharged to 60%, and the motivation of can powering separately is with maximum power operation about 1 minute.Because sealing and circulating turbine generation and super capacitor group system can avoid safeguarding for a long time, as long as it is just passable to add gasoline in the vehicle use, do not need charging, the per hour normal oil consumption of peak power 4kw gasoline engine generator is below 2 liters.