CN108979771A - Hydrogen internal combustion engine automobile high-pressure hydrogen storing pressure tank energy recyclable device - Google Patents
Hydrogen internal combustion engine automobile high-pressure hydrogen storing pressure tank energy recyclable device Download PDFInfo
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- CN108979771A CN108979771A CN201710411416.6A CN201710411416A CN108979771A CN 108979771 A CN108979771 A CN 108979771A CN 201710411416 A CN201710411416 A CN 201710411416A CN 108979771 A CN108979771 A CN 108979771A
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- internal combustion
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K27/00—Plants for converting heat or fluid energy into mechanical energy, not otherwise provided for
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K25/00—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for
- F01K25/08—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using special vapours
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K7/00—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating
- F01K7/02—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines being of multiple-expansion type
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
- Supercharger (AREA)
Abstract
The present invention provides a kind of hydrogen internal combustion engine automobile high-pressure hydrogen storing pressure tank energy recyclable device, it include: high pressure hydrogen tank (1) and pressure energy recovery system (2), the pressure energy recovery system (2) includes one or more levels expansion system, and every grade of expansion system includes an expanding machine (3) and a heat exchanger (4).High pressure hydrogen is flowed out from high pressure hydrogen tank (1), successively flows into expansion systems at different levels；In expansion systems at different levels, expanding machine (3) decrease temperature and pressure is first passed through, external output work, then inflow heat exchanger (4) absorbs heat, and improving its operating temperature makes its expansion process export more expansion works close to constant temperature process.The present invention is recycled the pressure energy in high pressure hydrogen tank by pressure energy recovery system (2), improves capacity usage ratio.
Description
Technical field
The present invention relates to hydrogen energy source energy recovery apparatus for vehicle, in particular to the pressure energy of a kind of high-pressure hydrogen storing tank recycles
Device.
Background technique
Internal combustion engine came out over more than 100 years, and people have done unremitting exert to develop both economically and environmentally beneficial engine
Power achieves huge achievement.The energy-consuming of automobile accounts for a quarter of world energy sources total quantity consumed, future tens at present
The quantity of automobile also will continue to increase in year, will lead to the shortage of petroleum resources.In addition using petroleum as gasoline made from raw material
CO, HC and CO2 can be generated in burning with diesel oil, the environment of human survival is caused great harm.Present people at
The substitute fuels such as hydrogen, liquefied petroleum gas (LPG), compressed natural gas (CNG), ethyl alcohol, dimethyl ether engine has been applied to function
On.Hydrogen is due to having many advantages, such as that big calorific value, flame propagation speed, kindling boundary is wide, ignition energy is small, pollution is small, quilt
It is considered the automobile engine substitute fuel of most prospect.
Fuel of the hydrogen as hydrogen internal combustion engine automobile needs to be stored in the car.Common hydrogen storage mode has high-pressure gaseous storage
The hydrogen storage mode of hydrogen, liquefaction hydrogen storage, hydride hydrogen-storing, active carbon hydrogen storage, carbon-nanotube hydrogen sorption etc., most common of them is
High-pressure gaseous hydrogen storage.Since hydrogen is the smallest gas of known density in the world, need to compress it to meet garage
Sail requirement.External hydrogen storage pressure has reached 70Mpa, and domestic hydrogen storage pressure has developed to 35Mpa.The fuel of conventional fuel oil automobile
It can directly be stored in the car without compression, and hydrogen internal combustion engine automobile stores again after needing to compress hydrogen, the mistake of compression hydrogen
Journey needs to consume a large amount of function.In fact, there is no disappearances for work done during compression consumed by compression hydrogen, but in the form of pressure energy
It is stored in high pressure gas cylinder.But existing hydrogen internal combustion engine automobile mesohigh hydrogen is dropped by throttle valve or injector
Pressure, the pressure energy that should be stored in high pressure gas cylinder in the process waste completely, cause the profligacy of the energy.For this purpose, this hair
Bright patent proposes to recycle the pressure energy in high pressure hydrogen tank using pressure energy recovery system in hydrogen internal combustion engine automobile,
Improve energy utilization efficiency.
As shown in Figure 1, reversible insulation is swollen by expanding machine working principle it is found that the done expansion work of reversible constant temperature process is most
Swollen acting is minimum, and reversible polytropic process therebetween, and increases with the reduction of Polytropic exponent n, so making process
It is the most advantageous close to constant temperature process.As shown in Fig. 2, in order to make real process expanding machine output expansion work as much as possible, often
By the way of multiple expansion resuperheat, classification is more, closer to constant temperature process, then can make more function.It is practical
On, being classified should not be too many, and otherwise mechanical complicated, the irreversible losses such as mechanical loss and flow resistance increase with it, general most
Level Four.As shown in figure 3, during multiple expansion reheat in stage, when expander outlet temperature is T2, using temperature higher than T2's
Concurrent heating mode, reheat temperature is more than that T2 reaches T1, as seen from the figure, higher using reheat temperature, and it is more to be made function, because
This further can carry out intermediate concurrent heating, recycling using the recirculated water that temperature is higher than environment temperature in pressure energy recovery system
More pressure energies.
Summary of the invention
It is an object of the present invention in view of the deficiencies of the prior art, provide a kind of pressure energy recycling dress of high pressure hydrogen tank
It sets, improves the vehicle energy utilization efficiency of hydrogen internal combustion engine automobile.
The technical scheme is that a kind of hydrogen internal combustion engine automobile high-pressure hydrogen storing pressure tank energy recyclable device, comprising: high
Hydrogen gas tank (1) and pressure energy recovery system (2) are pressed, the pressure energy recovery system (2) includes one or more levels expansion system,
Every grade of expansion system includes an expanding machine (3) and a heat exchanger (4).High pressure hydrogen is flowed out from high pressure hydrogen tank (1), according to
It is secondary to flow into expansion systems at different levels；In expansion systems at different levels, expanding machine (3) decrease temperature and pressure is first passed through, external output work, then
Inflow heat exchanger (4) heat absorption heating, improving its operating temperature makes its expansion process export more expansions close to constant temperature process
Function.
The expanding machine is axial-flow type expanding machine, radial-flow type expanding machine, diameter axial-flow type expanding machine, scroll expansion machine, spiral shell
Expander or piston expansion engine.Expanding machine plays the role of reducing Hydrogen Vapor Pressure, while having recycled the pressure of high pressure hydrogen
Power energy, external output work, to compensate for the energy dissipation of conventional throttle valve decompression.
The origin of heat of heat patching device is in air or internal combustion engine cooling circulating water among the expansion system.Using sky
Gas forced convertion or free convection concurrent heating do not need to add pipeline, save interior space；Using internal combustion engine cooling circulating water
Concurrent heating, not only realizes the effective use of afterheat of IC engine, but also improves expander inlet temperature, makees expanding machine externally
Function amount further increases.
The expanding machine output work can directly drive automobile advance, and air turbine supercharger can also be driven to work, also
Electric energy can be further converted into be stored in battery, the wasted works equipment such as interior compressor of air conditioner can also be driven, be in hydrogen
The hybrid power providing method of combustion engine automobile.
The expansion system can be level-one, second level or three-level, can be according to the different demands of client and selection different designs
Pattern has a wide range of application, and can ensure that the reliable implementation of above-mentioned pressure energy recovery method, effectively improves hydrogen internal combustion engine automobile energy
Utilization rate.
Detailed description of the invention
Fig. 1 is hydrogen internal combustion engine automobile high-pressure hydrogen storing pressure tank energy recyclable device.
Fig. 2 is that the P-V of expansion process schemes.
Fig. 3 is that the P-V of multiple expansion schemes.
Fig. 4 is that the P-V of multiple expansion resuperheat schemes.
Fig. 5 is that expanding machine drives turbocharger figure.
Fig. 6 is expanding machine drive transmission device figure.
Fig. 7 is expansion machine driving generator figure, and Fig. 8 is that hydrogen internal combustion engine automobile supplies flow chart.
Specific embodiment
Following case study on implementation is not intended to limit the scope of the invention for illustrating the present invention.
With reference to the accompanying drawing and case study on implementation, specific embodiments of the present invention will be described in further detail.
Case study on implementation 1
As shown in figure 4, a kind of hydrogen internal combustion engine automobile high-pressure hydrogen storing pressure tank energy recyclable device, comprising: high pressure hydrogen tank
(1), pressure energy recovery system (2), the pressure energy recovery system (2) include expanding machine (3) and heat exchanger (4), air turbine
Supercharger (5).This case uses compound expansion system, and high pressure hydrogen is flowed out from high pressure hydrogen tank (1), successively flowed at different levels swollen
Swollen system；In one-stage expansion system, first stage piston formula expanding machine (3) decrease temperature and pressure is first passed through, then external output work flows
Enter level-one water-cooled heat exchanger (4) to absorb the heat of cooling water of internal combustion engine and realize heating；Stage piston-type expanding machine is flowed into again
(3) continue expansion decompression externally acting, then flow into light breeze cold type heat exchanger (4) and absorb atmospheric heat.
As shown in figure 4, this part function amount can drive air turbine supercharger (5) to run using compound expansion system,
Extra function can also drive interior compressor of air conditioner or to charge the battery.Currently, in order to improve internal-combustion engines vehicle output work
Rate, hydrogen and air are before in-cylinder direct-jet, and outdoor air needs to be compressed to certain pressure and sprays into cylinder, this scheme is using work
Plug expanding machine (3) drives air turbine supercharger (5), improves vehicle energy utilization efficiency.
Case study on implementation 2
As shown in figure 5, a kind of hydrogen internal combustion engine automobile high-pressure hydrogen storing pressure tank energy recyclable device, comprising: high pressure hydrogen tank
(1), pressure energy recovery system (2), the pressure energy recovery system (2) include expanding machine (3) and heat exchanger (4), transmission mechanism
(6).This case uses three-level expansion system, and high pressure hydrogen is flowed out from high pressure hydrogen tank (1), successively flows into expansion systems at different levels；
In one-stage expansion system, hydrogen flows into level-one scroll expansion machine (3) decrease temperature and pressure, then external output work flows into level-one
Air-cooled heat exchanger (4) absorbs heat and realizes temperature rise；Second level scroll expansion machine (3) expansion decompression is flowed into again, is externally done
Function flows into light breeze cold type heat exchanger (4) and absorbs heat；Three-level scroll expansion machine (3) expansion decompression is finally flowed into, externally
Acting flows into the air-cooled heat exchanger of three-level (4) and absorbs atmospheric heat.
As shown in figure 5, expansion work can drive rear-wheel transmission mechanism or front wheel drive machine using three-level expansion system
Structure.
Case study on implementation 3
As shown in fig. 6, a kind of hydrogen internal combustion engine automobile high-pressure hydrogen storing pressure tank energy recyclable device, comprising: high pressure hydrogen tank
(1), pressure energy recovery system (2), the pressure energy recovery system (2) include expanding machine (3) and heat exchanger (4), generator
(7), battery (8).Present case uses one-stage expansion, and high pressure hydrogen is flowed out from high pressure hydrogen tank (1), by centripetal axial-flow type
Expanding machine (3) decrease temperature and pressure, external output work, then flow into water-cooled heat exchanger (4) absorb cooling circulating water heat and reality
It now heats up, afterheat of IC engine is rationally utilized.
As shown in fig. 6, externally being done work using one-stage expansion, this demi-inflation function drives generator (7) externally output electricity
Function completes the charging of battery (8).Battery climbs in vehicle as auxiliary power source or accelerates to be short of power or slow down
Driving vehicle operation when driving, realizes the combined drive power of hydrogen internal combustion engine automobile.Case study on implementation 4
As shown in fig. 7, hydrogen internal combustion engine automobile air supply system, comprising: high pressure hydrogen tank (1), pressure energy recyclable device (2),
Air turbine supercharger (5), water tank (9), nozzle (10), internal combustion engine (11).Hydrogen supply air line: hydrogen flows out high pressure hydrogen
Tank (1) expands decompression cooling by pressure energy recovery system (2), sprays into internal combustion engine (11) by nozzle (10), burning is external
Output work.
As shown in fig. 7, hydrogen ignition temperature in internal combustion engine is high, in order to guarantee safety and best power output, need
Internal combustion engine is cooled down.Cooling cycle water lines: cooling water is flowed out by water tank (9), internal combustion engine (11) is flowed through, to it
Cool down, flows through pressure energy recovery system (2) and release heat.
Claims (5)
1. the present invention provides a kind of hydrogen internal combustion engine automobile high-pressure hydrogen storing pressure tank energy recyclable device, comprising: high pressure hydrogen tank (1) and
Pressure energy recovery system (2), the pressure energy recovery system (2) include one or more levels expansion system, every grade of expansion system packet
Include an expanding machine (3) and a heat exchanger (4).High pressure hydrogen is flowed out from high pressure hydrogen tank (1), successively flows into expansion systems at different levels
System；In expansion systems at different levels, expanding machine (3) decrease temperature and pressure is first passed through, external output work, then inflow heat exchanger (4) absorbs heat
Heating, improving its operating temperature makes its expansion process export more expansion works close to constant temperature process；It is characterized by: of the invention
Pressure energy recovery system (2) include one or more levels expansion system, the pressure energy of high pressure hydrogen tank is recycled into external output work,
Improve capacity usage ratio.
2. hydrogen internal combustion engine automobile high-pressure hydrogen storing pressure tank energy recyclable device according to claim 1, it is characterised in that: described
Expanding machine be axial-flow type expanding machine, radial-flow type expanding machine, diameter axial-flow type expanding machine, scroll expansion machine, screw type expansion machine or
Piston expansion engine.
3. hydrogen internal combustion engine automobile high-pressure hydrogen storing pressure tank energy recyclable device according to claim 1, it is characterised in that: intermediate
The heat of heat patching device derives from air or internal combustion engine cooling circulating water.
4. hydrogen internal combustion engine automobile high-pressure hydrogen storing pressure tank energy recyclable device according to claim 1, it is characterised in that: described
Expansion system can be level-one, second level or three-level.
5. hydrogen internal combustion engine automobile high-pressure hydrogen storing pressure tank energy recyclable device according to claim 1, it is characterised in that: described
Expanding machine output work can directly drive automobile advance, and air turbine supercharger can also be driven to work, can also further be turned
It is changed to electric energy to be stored in battery, the wasted works equipment such as interior compressor of air conditioner can also be driven.
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| CN201710411416.6A CN108979771A (en) | 2017-06-02 | 2017-06-02 | Hydrogen internal combustion engine automobile high-pressure hydrogen storing pressure tank energy recyclable device |
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| CN201710411416.6A CN108979771A (en) | 2017-06-02 | 2017-06-02 | Hydrogen internal combustion engine automobile high-pressure hydrogen storing pressure tank energy recyclable device |
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| CN108979771A true CN108979771A (en) | 2018-12-11 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110397480A (en) * | 2019-07-02 | 2019-11-01 | 湖北三宁化工股份有限公司 | Utilize the device and method of hydrogen expander machine recycling electric energy |
| CN112682102A (en) * | 2020-12-24 | 2021-04-20 | 内蒙古科技大学 | Structure coupling type multistage pneumatic power machine |
| CN114122458A (en) * | 2021-09-28 | 2022-03-01 | 东风汽车集团股份有限公司 | Hydrogen fuel cell vehicle and hydrogen supply system thereof |
| CN114792826A (en) * | 2022-05-23 | 2022-07-26 | 济南新材料产业技术研究院 | Air pressurization system and method using high-pressure hydrogen |
| CN115207397A (en) * | 2022-09-08 | 2022-10-18 | 国网浙江省电力有限公司宁波供电公司 | Hydrogen fuel cell and compressed air energy storage combined operation system and control method thereof |
| CN115224305A (en) * | 2022-09-14 | 2022-10-21 | 国网浙江省电力有限公司宁波供电公司 | Hydrogen fuel cell power generation system and control method thereof |
| CN115263455A (en) * | 2022-06-09 | 2022-11-01 | 国网浙江省电力有限公司宁波供电公司 | Hydrogen isothermal expansion and hydrogen fuel cell combined operation system and control method |
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| CN115263455A (en) * | 2022-06-09 | 2022-11-01 | 国网浙江省电力有限公司宁波供电公司 | Hydrogen isothermal expansion and hydrogen fuel cell combined operation system and control method |
| CN115207397A (en) * | 2022-09-08 | 2022-10-18 | 国网浙江省电力有限公司宁波供电公司 | Hydrogen fuel cell and compressed air energy storage combined operation system and control method thereof |
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Application publication date: 20181211 |