CN103711680B - Use fuel and the hybrid power system of liquid gas and power output construction method - Google Patents
Use fuel and the hybrid power system of liquid gas and power output construction method Download PDFInfo
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- CN103711680B CN103711680B CN201410019410.0A CN201410019410A CN103711680B CN 103711680 B CN103711680 B CN 103711680B CN 201410019410 A CN201410019410 A CN 201410019410A CN 103711680 B CN103711680 B CN 103711680B
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- 239000007788 liquid Substances 0.000 title claims abstract description 129
- 239000000446 fuel Substances 0.000 title claims abstract description 52
- 238000010276 construction Methods 0.000 title claims abstract description 15
- 238000001816 cooling Methods 0.000 claims abstract description 16
- 238000000034 method Methods 0.000 claims abstract description 11
- 230000008569 process Effects 0.000 claims abstract description 10
- 238000009834 vaporization Methods 0.000 claims abstract description 10
- 230000008016 vaporization Effects 0.000 claims abstract description 10
- 239000007789 gas Substances 0.000 claims description 139
- 238000002485 combustion reaction Methods 0.000 claims description 65
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 20
- 238000010438 heat treatment Methods 0.000 claims description 13
- 229910052757 nitrogen Inorganic materials 0.000 claims description 10
- 238000002309 gasification Methods 0.000 claims description 7
- 230000015572 biosynthetic process Effects 0.000 claims description 6
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 4
- 239000003225 biodiesel Substances 0.000 claims description 3
- 238000004891 communication Methods 0.000 claims description 3
- 239000002283 diesel fuel Substances 0.000 claims description 3
- 239000001257 hydrogen Substances 0.000 claims description 3
- 229910052739 hydrogen Inorganic materials 0.000 claims description 3
- 125000004435 hydrogen atom Chemical class [H]* 0.000 claims description 3
- 239000003915 liquefied petroleum gas Substances 0.000 claims description 3
- 238000005086 pumping Methods 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 2
- 230000008450 motivation Effects 0.000 claims description 2
- 239000003345 natural gas Substances 0.000 claims description 2
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- 230000006835 compression Effects 0.000 description 6
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- 239000003502 gasoline Substances 0.000 description 4
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- 239000000203 mixture Substances 0.000 description 2
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- 238000012935 Averaging Methods 0.000 description 1
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 1
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Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
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- Engine Equipment That Uses Special Cycles (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
Abstract
The present invention disclose a kind of use fuel and the hybrid power system of liquid gas and power output construction method, this hybrid power system includes: mixed power plant, elementary sources based on liquid gas and fuel formed driving force；Adiabatic reserving liquid tank, is used for storing liquid gas；High-pressure gas cylinder, is used for storing high-pressure vaporization gas；Thermal source high-pressure carburetor, its thermal source branch road is for connecting with the cooling circuit of power set, and its vaporization branch road connects high-pressure gas cylinder and adiabatic reserving liquid tank；Heat exchange preheater, its first thermal source branch road is for connecting with the cooling circuit of power set, and its first preheating branch road connection high-pressure gas cylinder and air nozzle of pneumatic motor cylinder, its second preheating branch road connects discharge manifold and the inlet valve of pneumatic motor cylinder；With gas puff Z-pinch device, control the startup of air nozzle and stop timing exporting control instruction.This system can realize the preexpanding of gas, and the heat of expansion process provides in cylinder block, improves fuel utilization efficiency.
Description
Technical field
The present invention relates to technical field of engines, fill particularly to a kind of hybrid power using fuel and liquid gas
Put, system and power output construction method.
Background technology
Along with the high speed development of human society, a large amount of dynamic power machines are extensively applied, and have become as human society not
The part that can or lack.It is known that existing dynamic power machine energy occupation mode all brings serious breaking to natural environment
Bad, such as, produce the environmental pollutions such as heat energy discharge, greenhouse gas emission, soot dust granule thing discharge, bring global warming, Hai Ping
The problems such as face rises, weather degenerates.
Wherein, the internal combustion engine that technology is more ripe is applied more universal, by by fuel at automobile and each implement
Chemical energy is converted into mechanical energy and realizes the output of power.But, being limited by himself structure, existing internal combustion engine uses process
In, the heat energy outburst that fuel combustion produces promotes piston to run acting, and the most significant component of heat will pass to electromotor
On body and cylinder cap, and dissipated by cooling system, in addition with a large amount of heat energy with exhaust emissions.It is to say, it is most of
The combustion heat is discharged in environment, is based on the objective reality of above-mentioned heat loss so that it is left that the efficiency of internal combustion engine only reaches 20%
Right.
In order to solve the problem that energy storage discharges again, prior art proposes a kind of processing mode.By gas compression shape
Becoming storage of higher pressures, then fill and form pressure-driven to cylinder, replacement part is by the pressure produced after burning.But, this technology
During realization, storage of higher pressures requires the expenditure of energy 30%, and release filling process loss 30%, i.e. the reuse ratio of these means is only
Have about 9%.On this basis, the internal combustion energy utilization rate applying this processing mode also can only achieve 20%-30%.
Additionally, existing internal combustion engine is relatively big for the consumption of fossil fuel equal energy source material, and the flue dust after fuel combustion
Granular material discharged direct pollution environment, therefore, is restricted by energy-saving and emission-reduction related request.
In view of this, it would be highly desirable to a kind of Technology of Hybrid Electric Vehicle of the offer that looks for another way, on the basis effectively promoting the efficiency of internal combustion engine
On, it is possible to decrease the impact in terms of energy resource consumption and exhaust emission.
Summary of the invention
For drawbacks described above, present invention solves the technical problem that and be, it is provided that a kind of use the mixed of fuel and liquid gas
Close power set, using based on liquid gas and fuel as forming the elementary sources of driving force, and effectively utilize liquid gas work done
The gas of rear discharge is as the precommpression source of the gas of further expanded by heating, thus can improve efficiency to greatest extent, and reduces dirt
Dye, keeps starting cylinder interior cleaning.On this basis, the present invention also provides for the hybrid power system of a kind of these power set of application
System, and use the hybrid power output construction method of fuel and liquid gas.
What the present invention provided uses fuel and the hybrid power system of liquid gas, including:
Mixed power plant, elementary sources based on liquid gas and fuel forms driving force；Adiabatic reserving liquid tank, is used for storing
Liquid gas；High-pressure gas cylinder, is used for storing high-pressure vaporization gas；Thermal source high-pressure carburetor, its thermal source branch road is used for and power
The cooling circuit connection of device, its vaporization branch road connects described high-pressure gas cylinder and described adiabatic reserving liquid tank；Heat exchange preheater, its
First thermal source branch road is for connecting with the cooling circuit of power set, and its first preheating branch road connects described high-pressure gas cylinder and institute
Stating the air nozzle of pneumatic motor cylinder, its second preheating branch road connects discharge manifold and the inlet valve of described pneumatic motor cylinder；And spray
Airgun controller, to export startup and the stop timing of the control instruction described air nozzle of control.
Preferably, described gas puff Z-pinch device exports described control instruction according to the rotating speed of described mixed power plant.
Preferably, described heat exchange preheater also has Secondary Heat Source branch road, described Secondary Heat Source branch road and power set
I. C. engine exhaust pipeline parallel communication.
Preferably, also include ultra low temperature low pressure liquid pump, with from described adiabatic reserving liquid tank pumping liquid gas and be delivered to surpass
Low-temp low-pressure liquid pipeline.
Preferably, also include ultralow temperature high pressure liquid pump, be arranged on described ultra low temperature low pressure liquid pipeline and described thermal source high pressure
Between the thermal source branch road of carburator.
Preferably, also include that blender, described heat exchange preheater also include the return-air connected with described second preheating branch road
Gasification output port；Described mixer configuration becomes: its air inlet connects with described return-air gasification output port, its inlet and institute
Stating the liquid outlet connection of ultralow temperature high pressure liquid pump, its outlet connects with the gas feed of described thermal source high-pressure carburetor.
Preferably, during described ultra low temperature low pressure liquid pump is built in described adiabatic reserving liquid tank.
Preferably, the described ultralow temperature concrete automatic constant pressure of high pressure liquid pump starts pump.
Preferably, described liquid gas is specially liquid air, liquid nitrogen or liquid mixed gas.
Preferably, described mixed power plant includes quartastroke engine cylinder and pneumatic motor cylinder, described pneumatic motor gas
Cylinder includes:
Cylinder body；
Piston, is built in described cylinder body；With
Cylinder cap, encloses formation source of the gas work chamber with described cylinder body and piston, described cylinder cap is provided with inlet valve, aerofluxus
Door and the air nozzle stretching into described source of the gas working chamber；And
The piston of described pneumatic motor cylinder is connected by linkage with the piston of described cylinder of internal-combustion engine, with accordingly
Alternately slide in cylinder body.
Preferably, the cylinder body of described pneumatic motor cylinder is integrally formed with the cylinder body of described cylinder of internal-combustion engine.
Preferably, described cylinder of internal-combustion engine and described pneumatic motor cylinder are multiple, and are intervally arranged successively.
Preferably, described cylinder of internal-combustion engine and described pneumatic motor cylinder are three or four, form six cylinders or eight
Cylinder power set.
Preferably, the quantity of described cylinder of internal-combustion engine is less than the quantity of described pneumatic motor cylinder.
What the present invention provided uses the hybrid power output construction method of fuel and liquid gas, uses liquid gas and combustion
Expect as the elementary sources forming driving force, wherein, the pressure that after the preheating of described liquid gas, expanded by heating work done is formed further,
The pressure formed with described fuel combustion work done, collectively as the driving force of power output, and utilizes liquid gas work done heel row
The gas put is as the precommpression source of the gas of further expanded by heating.
Preferably, the preheating of described liquid gas is specially by liquid through the process of twice expanded by heating.
Preferably, application is foregoing uses fuel and the hybrid power system of liquid gas.
Preferably, described fuel be specially gasoline, diesel oil, liquefied petroleum gas, hydrogen, biogas, shale gas, biodiesel or
Person's natural gas.
Preferably, it is configured to during cold-starting: use the combustion section of fuel work done first to start, use liquid gas work done
Pneumatic part after start.
Preferably, in the case of low-power consumption, it is configured under high ambient temperature operating mode: reduce the fuel delivery of described cylinder of internal-combustion engine
And the gas improving pneumatic motor cylinder supplies, or internal combustion engine quits work.
Based on existing internal-combustion engine technology, the present invention proposes a kind of mixed power plant using liquid gas, except internal combustion
Outside machine cylinder, it is provided with the pneumatic motor cylinder with its adaptation.Specifically, the cylinder cap of this pneumatic motor cylinder, cylinder body and be built in cylinder
Internal cylinder cap encloses formation source of the gas work chamber, cylinder cap is provided with inlet valve, exhaust valve and stretches into described source of the gas working chamber
Air nozzle；Further, the piston of pneumatic motor cylinder is connected by linkage with the piston of cylinder of internal-combustion engine, with at corresponding cylinder
Internal alternately slip.Thus, form the air inlet of pneumatic motor cylinder, compress, do work and four work process of aerofluxus.
During suction stroke, IO Intake Valve Opens, exhaust valve closing, the piston of pneumatic motor cylinder can be under the drive of linkage
Moved to lower dead center by top dead centre, whole during bent axle will rotate 180 °.During compression travel, the inlet and outlet door of pneumatic motor cylinder
Simultaneously closing off, move along with piston is gradually upper, after its interior gas pressurized, temperature will be gradually increasing.During working stroke, inlet valve, row
Valve is turned off, and injects the gas of high pressure close to air nozzle during top dead centre, expands after being sufficiently mixed with high-temperature gas in cylinder body, empty
Interior pressure is instantly increased, and high temperature and high pressure gas promotes piston to move to lower dead center from top dead centre, and passes through toggle
Externally output mechanical energy.During instroke, exhauxt valve opens, IC Intake Valve Closes, piston moves to top dead centre from lower dead center, it is achieved
Complete the gas after work done to discharge.Compared with prior art, the mixed power plant that this programme provides can apply liquid gas to make
For " fuel ", form organically combination with the cylinder of internal-combustion engine using traditional fuel, the usage amount of traditional fuel can be substantially reduced,
Thus it is substantially reduced the granular material discharged environmental pollution caused.
On this basis, the hybrid power system applying these power set farther includes for storing the exhausted of liquid gas
Hot reserving liquid tank, cryogenic liquid gas therein is heated via thermal source high-pressure carburetor after vaporization, is stored in high-pressure gas cylinder.Work
When making, injecting in pneumatic motor cylinder after gases at high pressure are preheated, the thermal source branch road especially by heat exchange preheater realizes this preheating,
This thermal source branch road connects with the cooling circuit of power set, thus utilizes heat to be discharged to complete gas preheating；Meanwhile, this gas
The air inlet of motivation cylinder is introduced by the discharge manifold of himself, and is inhaled into cylinder block after heat exchange preheater preheats equally.As
This is arranged, and has following beneficial effects compared with conventional power system:
First, the hybrid power system that this programme provides can reduce fuel on the premise of obtaining same power performance to be made
Consumption, it is possible to decrease pollute.
Secondly, this system can make full use of the heat energy of release in fuel combustion process, it is achieved the preexpanding of gas, and
In cylinder block, the heat of expansion process provides, and then can improve fuel utilization efficiency to greatest extent, overcomes conventional internal combustion
The heat loss problem of machine.
3rd, pneumatic motor cylinder expellant gas in this programme, part is for the air inlet of cylinder, with conventional art inhaled loop
Border air is compared, and owing to the aerofluxus of this closed system is not polluted, has the environment of more high-quality, on the one hand, enter one in cylinder
Step utilizes the heat with certain delivery temperature, provides guarantee reliably additionally for cylinder start performance.Various liquefaction
Gas, it is impossible to comprise the material such as ice or dry ice, after gasifying as gas, becomes the purest air inlet free from admixture, can advise completely
Keep away icing phenomenon.
4th, the boiling point that the present invention is effectively utilized liquid gas is relatively low, and the feature that variations in temperature expansion rate is higher, i.e.
It is also can reliability application at weather of extremely trembling with fear；Additionally, liquid volume is little, with compressed air as drive medium technology compared with,
The storage volume of liquid gas differs 2-3 times, and it is big to store energy.This programme once fills and adds liquid gas and be available for the long period
Using, and liquid gas insulation is reliable, especially, water, air, soil are the non-conductor of heat, have time actually used
There is the feature that safety is high.
5th, use liquid gas as the work done elementary sources of pneumatic motor, generation is concentrated heat by its preparation process in a large number,
Such as prepare liquid nitrogen, this concentration heat can be collected and effectively utilized, need the thermal source of heating system as heating etc., the most really
The production capacity protecting whole industrial chain is optimised.
Finally, based on this programme for the heat recovery and utilization of power set cooling circuit, cooling system system can be simplified,
Such as, the heat dissipation design for large combustion engines such as tanks becomes simple, can reduce manufacturing cost further.
Accompanying drawing explanation
Fig. 1 shows the structure side realizing hybrid power output using fuel and liquid gas described in detailed description of the invention
The theory diagram of method；
Fig. 2 is to use fuel and the hybrid power system schematic diagram of liquid gas described in first embodiment；
Fig. 3 is the overall structure schematic diagram of cylinder of internal-combustion engine described in detailed description of the invention；
Fig. 4 is the overall structure schematic diagram of pneumatic motor cylinder described in detailed description of the invention；
Fig. 5 is to use fuel and the hybrid power system schematic diagram of liquid gas described in the second embodiment.
In Fig. 1-Fig. 5:
Gas puff Z-pinch device 1, control line 2, pneumatic motor cylinder 3, air nozzle 4, air inlet pipe 5, coolant inlet 6, remove exhaustor
7, discharge manifold 8, coolant inlet 9, ultralow temperature high pressure liquid pump 10, ultra low temperature low pressure pipeline 11, ultra low temperature low pressure liquid pump 12, add
Liquid mouth 13, adiabatic reserving liquid tank, 14, cooling liquid outlet 15, thermal source high-pressure carburetor 16, high-pressure gas cylinder 17, heat exchange preheater 18,
Cooling liquid outlet 19, I. C. engine exhaust entrance 20, I. C. engine exhaust outlet 21, return-air gasification output port 22, blender 23；
Inlet valve 31, spark plug 32, atomizer 33, exhaust valve 34, piston 35, connecting rod 36；
Inlet valve 41, connecting rod 42, air nozzle 4, exhaust valve 44, piston 45.
Detailed description of the invention
The core of the present invention is to provide a kind of hybrid power output construction method using fuel and liquid gas, Yi Jiying
With employing fuel and the hybrid power system of liquid gas of this design.Application the present invention can on the basis of energy-saving and emission-reduction,
Fully improve energy utilization rate.Present embodiment is illustrated below in conjunction with Figure of description.
Referring to Fig. 1, this illustrates and uses the hybrid power that realizes of fuel and liquid gas to export described in present embodiment
The theory diagram of construction method.
As it can be seen, the hybrid power output construction method of this employing fuel and liquid gas, with liquid gas and fuel
As the elementary sources of formation driving force, wherein, the pressure that after liquid gas preheating, expanded by heating work done is formed further, with fuel
The pressure that burning work done is formed, collectively as the driving force of power output, and utilizes the gas of discharge after liquid gas work done to make
Precommpression source of the gas for further expanded by heating.Preferably, the thermal source that is heated comes from the discharges heat of internal combustion engine: cooling circuit
Heat and/or the heat of gas exhaust piping.
In order to improve its functional reliability further, wherein the warm of liquid gas can be heated through twice by liquid
Expansion stage, thus by elongating whole phase transition process, liquid gas has the time fully to gasify expansion, reaches the highest temperature
Degree, it is ensured that offer pneumatic motor that can be reliable and stable is with spraying into source of the gas.
Here, " liquid gas " can be the feature that hydropneumatic, liquid nitrogen etc. have that boiling point is low, the cubical expansivity that is heated is high
Gas, specifically can the needs of the application scenario such as actual vehicle select；Can also be liquid mixed gas, actual raw material
Processing may be from the remaining residual liquid after commercial production prepares high-pure gas, can further improve liquid gas and prepare
The production capacity of industrial chain." fuel " can be gasoline, diesel oil, liquefied petroleum gas, hydrogen, biogas, shale gas, biodiesel or natural
The traditional combustion engine fuel such as gas, as long as can be formed with the pneumatic motor work done of the present invention effective cooperation.
Without loss of generality, present embodiment is described in detail using liquid nitrogen as the basic source of the gas of pneumatic linear actuator, it will be appreciated that
This source of the gas is not intended that the restriction to this programme flesh and blood.
Embodiment 1:
Refer to Fig. 2, the figure shows the hybrid power system schematic diagram using liquid gas described in first embodiment.
It should be noted that the power set applied of this hybrid power system are with liquid gas and traditional fuel as work done
Elementary sources, is specifically made up of cylinder of internal-combustion engine and two major parts of pneumatic motor cylinder；Wherein, those skilled in the art can adopt
Four-stroke cylinder of internal-combustion engine part is realized by prior art, therefore in order to become apparent from illustrating the core design place of the application,
In figure, pneumatic motor part only for this hybrid power system is made and being shown in detail.
As in figure 2 it is shown, the adiabatic reserving liquid tank 14 of this hybrid power system is used for storing liquid nitrogen, add offer nitrogen work to fill
For " fuel " of pneumatic motor, specifically filling can be realized by the filling opening 13 offered on adiabatic reserving liquid tank 14.Certainly, its work done
Process is that expanded by heating discharges pressure, the not burning on traditional concept.The liquid nitrogen being stored in adiabatic reserving liquid tank 14 can lead to
Cross and can be incubated the ultra low temperature low pressure pipeline 11 of transmission and enter thermal source high-pressure carburetor 16, realize vapour after preheating for the first time by heat exchange
Changing, the high-pressure vaporization nitrogen after pressure increases enters storage in high-pressure gas cylinder 17；Wherein, its thermal source of thermal source high-pressure carburetor 16
Branch road is for connecting with the cooling circuit of power set (internal combustion engine part), and i.e. its coolant inlet 9 and cooling liquid outlet 15 are even
Lead to the cooling circuit in internal combustion engine, make full use of the heat that internal combustion engine is to be discharged.First thermal source branch road of heat exchange preheater 18 is same
Sample connects with the cooling circuit of power set (internal combustion engine part), in i.e. its coolant inlet 6 and cooling liquid outlet 19 are communicated in
The cooling circuit of combustion engine, and there is two-way preheating branch road: its first preheating branch road connection high-pressure gas cylinder 17 and pneumatic motor cylinder 3
Air nozzle 4, be used for spraying into nitrogen second time preheating；Its second preheating branch road connects the discharge manifold 8 of pneumatic motor cylinder 3 and enters
Valve, connects inlet valve especially by air inlet pipe 5, and thus, the air inlet of this pneumatic motor cylinder 3 is drawn by the discharge manifold 8 of himself
Enter, and after heat exchange preheater 18 preheats, be inhaled into cylinder block equally, thus carry heat and enter cylinder operation.Preheat through heat exchange
After device 18, temperature can reach-40 DEG C～90 DEG C (time abnormal, electromotor boils and can reach 110 DEG C).Certainly, discharge manifold 8 is another
Exhaustor 7 is removed in the connection of one branch.
Additionally, this hybrid power system utilizes gas puff Z-pinch device 1 to export control instruction, with control air nozzle 4 startup and
Stop timing, as it can be seen, control instruction is transferred to the control port of air nozzle 4 by gas puff Z-pinch device 1 by control line 2, tool
Body can be realized by software self adaptation.
Therein, the agent structure of cylinder of internal-combustion engine is shown in Figure 3, using gasoline engine cylinder as example shown in figure
Property explanation, it will be appreciated that in addition to ignition engine, this programme applies also for compressed ignition internal combustion engine.The piston 35 of this cylinder of internal-combustion engine
It is built in cylinder body, is connected with toggle by connecting rod 36, prior art specifically can be used to realize, therefore the most no longer
Repeat.Similarly, its cylinder head is provided with inlet valve 31, exhaust valve 34, spark plug 32 and atomizer 33, is rushed by air inlet
Journey, compression stroke, expansion stroke and exhaust stroke four-stage constitute a closing work process, make using gasoline as fuel combustion
Merit promotes piston to move down and realizes power output.
Therein, the agent structure of pneumatic motor cylinder is identical with cylinder of internal-combustion engine, and please also refer to Fig. 4, this figure is pneumatic
The overall structure schematic diagram of machine cylinder.Its piston 45 is built in cylinder body, and its cylinder cap encloses formation source of the gas with cylinder body and piston 45
Work chamber, this cylinder cap is provided with inlet valve 41, exhaust valve 44 and stretches into the air nozzle 4 of source of the gas working chamber；Here, pneumatic motor
The piston 45 of cylinder is connected with toggle by connecting rod 42, it is achieved power output, is similarly four strokes: air inlet, compression,
Acting and four work process of aerofluxus.The piston 45 of this pneumatic motor cylinder passes through linkage phase with the piston 35 of cylinder of internal-combustion engine
Even, alternately to slide in the corresponding cylinder body of each leisure.Additionally, the cylinder body of pneumatic motor cylinder becomes with the cylinder body one of cylinder of internal-combustion engine
Shape, certainly, can also be split-type design between the two, and the most integrally formed have preferable manufacturability, therefore is
Excellent scheme.
It is briefly described as follows its engineering process:
During suction stroke, inlet valve 41 is opened, exhaust valve 44 cuts out, and the piston 45 of pneumatic motor cylinder can be at linkage 42
Drive under moved to lower dead center by top dead centre, whole during bent axle will rotate 180 °.
During compression travel, inlet valve 41, exhaust valve 44 simultaneously close off, and move along with piston 45 is gradually upper, and its interior gas is subject to
After pressure, temperature will be gradually increasing；According to intake air temperature and compression ratio, temperature can be the highest at 100 DEG C～800 DEG C.
During working stroke, inlet valve 41, exhaust valve 44 are turned off, and inject the gas of high pressure close to air nozzle during top dead centre 4,
The gas pressure now sprayed into from air nozzle 4 can reach 80-300 atmospheric pressure, and temperature is-40 DEG C～90 DEG C；With high temperature in cylinder body
Gas expands after being sufficiently mixed, and in space, pressure is instantly increased, and high temperature and high pressure gas promotes piston 45 from top dead centre to lower dead center
Motion, and by the external output mechanical energy of toggle.Specifically, gas puff Z-pinch device 1 turning according to mixed power plant
Speed output control instruction, controls startup long being adjusted in time on opportunity of air nozzle 4.
During instroke, exhaust valve 44 is opened, inlet valve 41 is closed, and piston 45 moves to top dead centre from lower dead center, it is achieved
Complete the gas after work done to discharge.
It should be noted that in addition to working stroke, the piston action of this pneumatic motor cylinder can be based on single cylinder inertia or many
Cylinder drives and carries out, and specifically can be designed according to being actually needed of specified parameter.Such as, cylinder of internal-combustion engine and described pneumatic motor
Cylinder can be three, and is intervally arranged successively, forms six cylinder power set.Obviously, this mixed power plant can also be
Other are a plurality of for four cylinders, eight cylinders, twelve-cylinder etc., as long as what the core design design of application this programme was all claimed in the application
In the range of.
Especially, pneumatic motor cylinder is not limited to the setting that aforementioned quantity is identical with cylinder of internal-combustion engine, and both quantity is complete
Can be different.Preferably, the quantity of cylinder of internal-combustion engine is less than the quantity of pneumatic motor cylinder, and this design may be used for ambient temperature relatively
High operating mode, such as, equator etc., owing to environmental energy abundance easily obtains energy, under this operating mode, but most or all are adopted
The output of driving force is provided with pneumatic motor cylinder.
Under normal circumstances, cylinder of internal-combustion engine and pneumatic motor cylinder can work with synchronous averaging, real-time synchronization output driving force.
Certainly, in order to avoid the functional reliability of pneumatic part during cold-starting, can be configured to when cold-starting: use fuel to make
The combustion section of merit first starts, and starts after using the pneumatic part of liquid gas work done.So, the preheating temperature of pneumatic part,
Can be ensured based on the cooling circuit after combustion section combustion heating scheduled time length.Additionally, in the case of low-power consumption, ring
It is configured under the worst hot case of border: the fuel delivery reducing described cylinder of internal-combustion engine and the gas supply improving pneumatic motor cylinder, or
Person's internal combustion engine quits work, i.e. simple by the pattern of pneumatic motor cylinder operation.
It addition, hybrid power system as shown in Figure 2, also include ultra low temperature low pressure liquid pump 12, with from adiabatic reserving liquid tank 14
Pumping liquid gas is also delivered to ultra low temperature low pressure liquid pipeline 11, substantially 3-5 atmospheric pressure of pressure, in order to realize distance defeated
Go out to provide the working media to pneumatic motor cylinder；Shown in figure, this ultra low temperature low pressure liquid pump 12 can be selected for immersion liquid pump, thus
Can be built in adiabatic reserving liquid tank 14.
Additionally, also include ultralow temperature high pressure liquid pump 10, it is arranged on ultra low temperature low pressure liquid pipeline 11 and described thermal source high pressure vapour
Change between the thermal source branch road of device 16, with the reliable supply that ultra low temperature low pressure liquid pump 12 guarantees pneumatic motor cylinder operation medium in the lump.
Preferably, this concrete automatic constant pressure of ultralow temperature high pressure liquid pump 10 starts pump, specifically can set up it and start pressure threshold, it is ensured that be defeated
Go out the pressure threshold of end, and then absorb heat expansion by thermal source high-pressure carburetor 16, and lay in high-pressure gas cylinder 17, pressure
Up to 300 atm higher.
It is understood that when liquid gas selects air, the gas handling system of internal combustion engine can simplify or cancel, right
The demand of air reduces, and can dive under water or apply in the case of rarefaction of air.
Embodiment 2:
The present embodiment is identical with the hybrid power system main composition using fuel and liquid gas described in first embodiment,
And on the basis of first embodiment, made further optimization.Refer to Fig. 5, the figure shows and described in the second embodiment, use combustion
Material and the hybrid power system schematic diagram of liquid gas.Contact to clearly show both differences, identical function element in figure
Indicate with identical labelling.
This programme has been compared to the improvement of two aspects mutually with first embodiment.First, heat exchange preheater 18 also has second
The I. C. engine exhaust pipeline parallel communication of thermal source branch road, this Secondary Heat Source branch road and power set, i.e. its I. C. engine exhaust entrance
20 are communicated in I. C. engine exhaust pipeline with I. C. engine exhaust outlet 21, thus further with the exhaust gas heat of internal combustion engine, maximum
The reduction heat loss of limit.
It addition, also include blender 23, this heat exchange preheater 18 also includes the return-air gasification connected with the second preheating branch road
Output port 22, say, that be further separated into the pneumatic linear actuator aerofluxus of heat exchange preheater 18 through discharge manifold 8, except one after preheating
Dividing and suck inside and outside pneumatic motor cylinder, another branch is used for being fed back to thermal source high-pressure carburetor 16.As it can be seen, this blender 23 is joined
It is set to: its air inlet connects with return-air gasification output port 22, and its inlet connects with the liquid outlet of ultralow temperature high pressure liquid pump 10,
Its outlet connects with the gas feed of thermal source high-pressure carburetor 16, for high-pressure liquid gas and passing through of feedback are preheated heel row
Edema caused by disorder of QI props up mixing, then is passed through in thermal source high-pressure carburetor 16, forms the gas-liquid mixture that temperature raises, and reduces the difficulty of subsequent vaporization
Degree, thus improve its vaporization performance.
The foregoing is only the preferred embodiment of the present invention, be not intended that limiting the scope of the present invention.Any
Any amendment, equivalent and the improvement etc. made within the spirit and principles in the present invention, should be included in the power of the present invention
Within the scope of profit is claimed.
Claims (20)
1. use fuel and the hybrid power system of liquid gas, it is characterised in that including:
Mixed power plant, elementary sources based on liquid gas and fuel forms driving force；
Adiabatic reserving liquid tank, is used for storing liquid gas；
High-pressure gas cylinder, is used for storing high-pressure vaporization gas；
Thermal source high-pressure carburetor, its thermal source branch road is for connecting with the cooling circuit of power set, and its vaporization branch road connection is described
High-pressure gas cylinder and described adiabatic reserving liquid tank；
Heat exchange preheater, its first thermal source branch road is for connecting with the cooling circuit of power set, and its first preheating branch road connects
Described high-pressure gas cylinder and the air nozzle of pneumatic motor cylinder, its second preheating branch road connects the discharge manifold of described pneumatic motor cylinder
And inlet valve；With
Gas puff Z-pinch device, to export startup and the stop timing of the control instruction described air nozzle of control.
Hybrid power system the most according to claim 1, it is characterised in that described gas puff Z-pinch device moves according to described mixing
The rotating speed of power apparatus exports described control instruction.
Hybrid power system the most according to claim 1 and 2, it is characterised in that described heat exchange preheater also has second
The I. C. engine exhaust pipeline parallel communication of thermal source branch road, described Secondary Heat Source branch road and power set.
Hybrid power system the most according to claim 3, it is characterised in that also include ultra low temperature low pressure liquid pump, with from institute
State adiabatic reserving liquid tank pumping liquid gas and be delivered to ultra low temperature low pressure liquid pipeline.
Hybrid power system the most according to claim 4, it is characterised in that also include ultralow temperature high pressure liquid pump, be arranged on
Between the thermal source branch road of described ultra low temperature low pressure liquid pipeline and described thermal source high-pressure carburetor.
Hybrid power system the most according to claim 4, it is characterised in that also include blender, described heat exchange preheater
Also include the return-air gasification output port connected with described second preheating branch road；Described mixer configuration becomes: its air inlet and institute
Stating return-air gasification output port connection, its inlet connects with the liquid outlet of described ultralow temperature high pressure liquid pump, and its outlet is with described
The gas feed connection of thermal source high-pressure carburetor.
Hybrid power system the most according to claim 4, it is characterised in that described ultra low temperature low pressure liquid pump is built in described
In adiabatic reserving liquid tank.
Hybrid power system the most according to claim 5, it is characterised in that described ultralow temperature high pressure liquid pump is the most fixed
Pressure starts pump.
Hybrid power system the most according to claim 1, it is characterised in that described liquid gas be specially liquid air,
Liquid nitrogen or liquid mixed gas.
Hybrid power system the most according to claim 1, it is characterised in that described mixed power plant includes four strokes
Cylinder of internal-combustion engine and described pneumatic motor cylinder, described pneumatic motor cylinder includes:
Cylinder body；
Piston, is built in described cylinder body；With
Cylinder cap, with described cylinder body and piston enclose formation source of the gas work chamber, described cylinder cap is provided with inlet valve, exhaust valve and
Stretch into the described air nozzle of described source of the gas working chamber；And
The piston of described pneumatic motor cylinder is connected by linkage with the piston of described cylinder of internal-combustion engine, with at corresponding cylinder body
Interior alternately slip.
11. hybrid power systems according to claim 10, it is characterised in that the cylinder body of described pneumatic motor cylinder is with described
The cylinder body of cylinder of internal-combustion engine is integrally formed.
12. according to the hybrid power system described in claim 10 or 11, it is characterised in that described cylinder of internal-combustion engine and described gas
Motivation cylinder is multiple, and is intervally arranged successively.
13. hybrid power systems according to claim 12, it is characterised in that described cylinder of internal-combustion engine and described pneumatic motor
Cylinder is three or four, forms six cylinders or eight cylinder power set.
14. according to the hybrid power system described in claim 10 or 11, it is characterised in that the quantity of described cylinder of internal-combustion engine is little
Quantity in described pneumatic motor cylinder.
The 15. hybrid power output construction methods using fuel and liquid gas, it is characterised in that use liquid gas and fuel
As the elementary sources of formation driving force, wherein, the pressure that after the preheating of described liquid gas, expanded by heating work done is formed further, with
The pressure that described fuel combustion work done is formed, collectively as the driving force of power output, and utilizes discharge after liquid gas work done
Gas as the precommpression source of the gas of further expanded by heating.
16. hybrid power according to claim 15 output construction methods, it is characterised in that the preheating of described liquid gas
It is specially by liquid through the process of twice expanded by heating.
17. hybrid power according to claim 15 output construction methods, it is characterised in that application claim 1 to 14
According to any one of use fuel and the hybrid power system of liquid gas.
18. hybrid power according to claim 16 output construction methods, it is characterised in that described fuel is specially vapour
Oil, diesel oil, liquefied petroleum gas, hydrogen, biogas, shale gas, biodiesel or natural gas.
19. hybrid power according to claim 15 output construction methods, it is characterised in that be configured to during cold-starting:
The combustion section using fuel work done first starts, and starts after using the pneumatic part of liquid gas work done.
20. hybrid powers according to claim 19 output construction methods, it is characterised in that in the case of low-power consumption, environment
It is configured under worst hot case: the fuel delivery reducing described cylinder of internal-combustion engine and the gas supply improving pneumatic motor cylinder, or
Internal combustion engine quits work.
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| CN101963100A (en) * | 2009-07-21 | 2011-02-02 | 贾尔·J·Y·帕克 | Air/fuel double pre-mix self-supercharging internal combustion engine with one freewheeling mechanism |
| JP5372848B2 (en) * | 2010-07-02 | 2013-12-18 | 東京瓦斯株式会社 | CO2 recovery type cogeneration system and operation control method thereof |
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Effective date of registration: 20191118 Address after: 215416 No. 9 Fenggang Road, Shuangfeng town, Taicang City, Suzhou, Jiangsu. Patentee after: Suzhou Zhengmei Photoelectric Technology Co., Ltd Address before: 100190, Beijing, Zhongguancun Academy of Sciences Haidian District South Road, No. 8, Cheung garden, No. 1507 Patentee before: Gou Zhongwu |
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