CN206524373U - A kind of fuel cell energy recovery system - Google Patents
A kind of fuel cell energy recovery system Download PDFInfo
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- CN206524373U CN206524373U CN201720194914.5U CN201720194914U CN206524373U CN 206524373 U CN206524373 U CN 206524373U CN 201720194914 U CN201720194914 U CN 201720194914U CN 206524373 U CN206524373 U CN 206524373U
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
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Abstract
The utility model discloses a kind of fuel cell energy recovery system, including：Fuel cell pack, for producing electric power by electrochemical reaction；Hydrogen storage equipment, for supplying hydrogen fuel to fuel cell pack；Energy regenerating subsystem, the pressure energy for reclaiming hydrogen fuel；Heat-exchanger rig, the heat energy for reclaiming fuel cell pack；And hydrogen gas house steward, for hydrogen fuel incoming fuel battery pile；Hydrogen storage equipment, power sub-system, heat-exchanger rig, hydrogen gas house steward and fuel cell pack are sequentially connected.The utility model reclaims the progress of the pressure energy of fuel cell mesohigh hydrogen fuel and the heat energy of fuel cell pack, so that the energy recycling of fuel cell, so as to substantially increase the capacity usage ratio of fuel cell, and then it compensate for because of the energy loss that the hydrogen fuel that compresses or liquefy is consumed.
Description
Technical field
The utility model is related to field of fuel cell technology, espespecially a kind of fuel cell energy recovery system.
Background technology
In recent years, because the limited and environmental problem of petroleum resources becomes increasingly conspicuous, new energy is all paid attention in countries in the world further
Source automobile.Wherein, fuel cell car receives much concern as a kind of ultimate environment-friendly vehicle.At present, external Toyota, Honda, modern
Fuel cell car starts to lease or sold in Europe, North America, and the extended-range fuel cell car of vapour etc. has been also in China
Invest market.The automobile of these brands, it is common to use hydrogen is used as fuel.
Hydrogen is most light gas, and the density of liquified hydrogen is also only 70.8kg/m3, is the 1/3 of same volume gasoline energy.
Moreover, the liquefaction of hydrogen is to come the second difficult liquefied gas behind helium, at -253 DEG C or lower liquid, liquid need to could be maintained
Change process needs complicated and expensive multistep cooling system just to realize.However, the pressure of hydrogen storage is higher, compression is disappeared
The outside energy of consumption is also higher：The consumed outside energy of liquefaction accounts for the 30%~40% of hydrogen energy, causes the waste of energy；
Therefore, current automobile vendor all selects to compress hydrogen substantially, is then stored in container, but compression hydrogen needs also exist for consumption
The volume shared by hydrogen after energy, and compression is very big, and inapplicable current automobile volume, and the associative perception of influence automobile
Official.Such as, a car if desired 500km or so drive range is, it is necessary to 5~10kg hydrogen, even in 35~70MPa pressure
Lower storage, the energy that compression hydrogen is consumed accounts for the 10%~15% of hydrogen energy, and its container is also identical mileage automobile oil
Several times of case are big.Either liquefaction hydrogen or compression hydrogen, are required to consume the larger energy of accounting hydrogen energy proportion.
At present, fuel cell system for vehicles is generally divided into low-pressure system, medium voltage network and high-pressure system, but conventionally used hydrogen
Pressure is no more than 0.3MPa (absolute pressure), and main flow way is exactly to be depressured by installing pressure-reducing valve.If 35MPa fuel cells
System, generally first passes through one-level pressure relief valve and is down to 2MPa, then be down to pressure needed for required pile reacts by second depressurized valve；By
In this process and the pressure energy of unrecovered hydrogen, wasting for energy is caused.Meanwhile, fuel cell piles up reaction power supply
When, fuel cell pack can also heat production, if not reclaimed to heat, will also result in the heat-energy losses of fuel cell.
In summary, the applicant is directed to providing a kind of fuel cell energy recovery system, by fuel cell
Hydrogen Vapor Pressure can improve the utilization rate of fuel cell car energy with the recovery of heat energy.
The content of the invention
The purpose of this utility model is to provide a kind of fuel cell energy recovery system, realizes fuel cell mesohigh hydrogen
The recovery of the pressure energy of fuel and the heat energy of fuel cell pack so that the energy recycling of fuel cell, so as to carry significantly
The high capacity usage ratio of fuel cell, and then compensate for, because of the energy loss that the hydrogen fuel that compresses or liquefy is consumed, dropping significantly
Energy expenditure and loss caused by low compression or liquefaction hydrogen fuel.
The technical scheme that the utility model is provided is as follows：
A kind of fuel cell energy recovery system, including：
Fuel cell pack, the fuel cell pack is used to produce electric power by electrochemical reaction；
Hydrogen storage equipment, the hydrogen storage equipment is used to supply hydrogen fuel to the fuel cell pack；
Energy regenerating subsystem, the energy regenerating subsystem is used for the pressure energy for reclaiming hydrogen fuel；
Heat-exchanger rig, the heat-exchanger rig is used for the heat energy for reclaiming the fuel cell pack；And
Hydrogen gas house steward, the hydrogen gas house steward is used for hydrogen fuel and enters the fuel cell pack；
The hydrogen storage equipment, the power sub-system, the heat-exchanger rig, the hydrogen gas house steward and fuel electricity
Chi Dui is sequentially connected.
In the technical program, fuel cell mesohigh hydrogen fuel is realized by energy regenerating subsystem and heat-exchanger rig
The recovery of the heat energy of pressure energy and fuel cell pack so that the energy recycling of fuel cell, so as to substantially increase combustion
Expect the capacity usage ratio of battery, and then compensate for, because of the energy loss that the hydrogen fuel that compresses or liquefy is consumed, greatly reducing pressure
Energy expenditure and loss caused by contracting or liquefaction hydrogen fuel.Due to the recovery of heat energy, also reduce heat energy and distribute into environment
Thermal pollution is produced, and then causes the phenomenons such as urban heat land effect, with the good feature of environmental protection.And the utility model design science is closed
Reason.
It is further preferred that also including hydrogen bypass branch；Energy regenerating subsystem and the heat-exchanger rig series connection
Form energy-recuperation system；The energy-recuperation system is in parallel with the hydrogen bypass branch located at the hydrogen storage equipment and described
Between hydrogen gas house steward.
In the technical program, because the pressure energy of low pressure hydrogen fuel can not be reclaimed or when recyclable energy is less, it can lead to
Cross hydrogen bypass branch and low pressure hydrogen fuel is directly sent into hydrogen gas house steward, hence into being reacted in fuel cell pack,
And then shorten the reaction time of low pressure hydrogen fuel.
It is further preferred that also including hydrogen bypass branch；The energy regenerating subsystem and the hydrogen bypass branch
Parallel connection is located between the hydrogen storage equipment and the heat-exchanger rig.
In the technical program, the low-pressure low-temperature hydrogen that the hydrogen fuel and energy regenerating subsystem of hydrogen bypass branch come out fires
Material first passes through heat-exchanger rig before incoming fuel battery pile, it is ensured that the optimum response of the hydrogen in incoming fuel battery pile
Temperature (60-80 DEG C), realizes the recycling of heat energy.
It is further preferred that the energy regenerating subsystem includes the first expanding machine and cooling branch road；The cooling branch road
It is connected successively with the fuel cell pack and the heat-exchanger rig so that the coolant in the cooling branch road flows through described successively
Fuel cell pack and the heat-exchanger rig；The import of first expanding machine is connected with the hydrogen storage equipment, first expansion
The outlet of machine is connected with the heat-exchanger rig, and first expanding machine is used for the pressure energy for reclaiming hydrogen fuel.
In the technical program, the recovery to the pressure energy of hydrogen storage equipment mesohigh hydrogen fuel is realized by expanding machine, so that
Improve the hydrogen fuel capacity usage ratio of fuel cell；And the low-pressure low-temperature hydrogen fuel after expansion is added by heat-exchanger rig
Heat so that the hydrogen of incoming fuel battery pile meets its reaction temperature (60-80 DEG C), is returned while realizing heat energy and pressure energy
Receive, improve the capacity usage ratio of fuel cell.
It is further preferred that first expanding machine is connected with generator, for pressure energy to be converted into electric energy.
In the technical program, by the way that generator is connected with expanding machine, the pressure energy of consistent high pressure hydrogen fuel is converted into by realization
Electric energy so that fuel cell system increases an electric power source newly, improves the capacity usage ratio of hydrogen fuel.
It is further preferred that the energy regenerating subsystem also include several second expanding machines and with the second expanding machine
The heat exchanger being correspondingly arranged, each second expanding machine is connected with the generator；If several described second expanding machines with
Alternately series connection is accessed between the hydrogen storage equipment and first expanding machine dry heat exchanger successively；Set close to the hydrogen storage
The first magnetic valve is provided between the second standby expanding machine and the hydrogen storage equipment；Each heat exchanger connects with the hydrogen storage equipment
Connect, and be each equipped with the second magnetic valve between the heat exchanger and the hydrogen storage equipment；It is described to cool down branch road and each described
Heat exchanger is connected so that the coolant come out from the heat-exchanger rig flows through each heat exchanger successively.
In the technical program, pass through using cooperatively between several expanding machines and several heat exchangers so that High Pressure Hydrogen
The pressure energy of fuel and the heat energy of fuel cell pack realize multistage recycling, substantially increase the energy of fuel cell
The rate of recovery, so realize fuel cell energy maximally utilize rate.
It is further preferred that the gas storage equipment is provided with first pressure sensor, the pressure for detecting hydrogen fuel；Institute
First pressure sensor is stated to be connected with first magnetic valve and second magnetic valve respectively, control first magnetic valve and
The open and close of second magnetic valve.
In the technical program, the consistent high pressure hydrogen fuel for the different pressures rank that multilevel energy is reclaimed is realized by pressure sensor
Intelligentized control method and management, improve the intellectuality and hommization of fuel cell.It is also intelligentized to reduce High Pressure Hydrogen combustion
Expect the pipeline of incoming fuel battery pile, improve respond and self-control that multilevel energy is reclaimed.
It is further preferred that the hydrogen bypass branch is provided with the 3rd magnetic valve；The first pressure sensor and institute
The connection of the 3rd magnetic valve is stated, the open and close of the 3rd magnetic valve are controlled.
In the technical program, by the low pressure flow of hydrogen fuel whether intelligentized control method in hydrogen bypass branch, from
And consistent high pressure hydrogen fuel is avoided by bypass branch incoming fuel battery pile, causing the pressure loss of energy of consistent high pressure hydrogen fuel.
It is further preferred that also including hydrogen outlet house steward and the hydrogen recovery branch road of the fuel cell pack；It is described
Hydrogen reclaims branch road and connected respectively with hydrogen gas house steward and the hydrogen outlet house steward so that the hydrogen combustion in hydrogen outlet house steward
Material enters the hydrogen gas house steward.
In the technical program, by carrying out recycling to the unreacted hydrogen fuel in fuel cell pack, it is to avoid
The waste of hydrogen fuel, reduces the consumption of hydrogen fuel, improves the utilization rate of hydrogen fuel, and then improve the energy profit of fuel cell
With rate.
It is further preferred that the hydrogen, which reclaims branch road, is provided with booster, the booster and energy regenerating
System is connected；Or；The hydrogen reclaims branch road and is provided with circulating pump.
In the technical program, by by booster and expanding machine coaxial linkage, so as to realize the pressure of consistent high pressure hydrogen fuel
Mechanical energy can be converted into so that hydrogen fuel is recycled in fuel cell pack, consistent high pressure hydrogen fuel has been achieved in that and has followed
Energy conversion between ring mechanical energy, improves the capacity usage ratio of hydrogen fuel.Certainly, hydrogen is reclaimed also can directly set on branch road
Put circulating pump.
The fuel cell energy recovery system provided by the utility model, can bring the following beneficial effect of at least one
Really：
1. in the utility model, fuel cell mesohigh hydrogen fuel is realized by energy regenerating subsystem and heat-exchanger rig
Pressure energy and fuel cell pack heat energy recovery so that the energy recycling of fuel cell, so as to substantially increase
The capacity usage ratio of fuel cell, and then compensate for because of the energy loss that the hydrogen fuel that compresses or liquefy is consumed.Due to heat energy
Reclaim, also avoid reducing heat energy distributing thermal pollution is produced into air, and then cause the phenomenons such as urban heat land effect, with good
The good feature of environmental protection.And science reasonable in design.
2. in the utility model, energy regenerating subsystem is by several expanding machines and heat exchanger, so as to realize High Pressure Hydrogen
The multistage recovery of the pressure energy of fuel and the heat energy of fuel cell pack, substantially increases the energy recovery rate of fuel cell.
3. in the utility model, energy regenerating subsystem can be connected with booster realizes that unreacted hydrogen is fired in fuel cell pack
Expect cycling and reutilization, reduce the consumption of hydrogen fuel；Energy regenerating subsystem can be also connected with generator, by consistent high pressure hydrogen fuel
Pressure energy be converted into electric energy, provide second source for fuel cell.Realize the inside of pressure energy and heat energy in fuel cell
Recycle and consume, improve the integration of fuel cell and integrated, substantially increase the capacity usage ratio of fuel cell
And the rate of recovery.
4. in the utility model, the branch road for controlling different pressures energy level by pressure sensor is turned on and off, such as
Consistent high pressure hydrogen fuel (hydrogen fuel pressure >=12MPa) can pass sequentially through multiple expanding machines；And higher pressure hydrogen fuel (8MPa≤hydrogen fuel
Pressure ＜ 12MPa) expanding machine that passes through will be fewer than above-mentioned consistent high pressure hydrogen fuel one；And low pressure hydrogen fuel (hydrogen fuel pressure ＜
2MPa) by hydrogen bypass branch, pressure-reducing valve incoming fuel battery pile, and without any expanding machine.Realize with difference
The hydrogen fuel of pressure energy enters intelligentized control method and the management of the energy regenerating subsystem of corresponding energy regenerating rank, improves combustion
Expect the intellectuality and hommization of battery.
Brief description of the drawings
Below by clearly understandable mode, preferred embodiment is described with reference to the drawings, a kind of fuel cell energy is returned
Above-mentioned characteristic, technical characteristic, advantage and its implementation of receipts system are further described.
Fig. 1 is the structural representation of the first embodiment of the utility model；
Fig. 2 is the structural representation of second of embodiment of the utility model；
Fig. 3 is the structural representation of the third embodiment of the utility model；
Fig. 4 is the structural representation of the 4th kind of embodiment of the utility model.
Drawing reference numeral explanation：
100. fuel cell pack, 210. air inlet pipelines, 310. first expanding machines, 321. coolant inlet pipe roads, 322. is cold
But liquid output pipe, 320. generators, 330. the 4th magnetic valves, 340. second expanding machines, 350. first magnetic valves, 360. second
Magnetic valve, 370. second heat exchangers, 400. heat-exchanger rigs, 500. hydrogen gas house stewards, 510. pressure-reducing valves, 520. hydrogen enter electromagnetism
Valve, 530. second pressure sensors, 600. hydrogen bypass branch, 610. the 3rd magnetic valves, 700. hydrogen outlet house stewards, 800. hydrogen
Gas reclaims branch road, and 810. boosters, 820. circulating pumps, 900. gas-liquid separators, 1000. hydrogen outlet branch roads, 1010. hydrogen go out electricity
Magnet valve.
Embodiment
In order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art, accompanying drawing will be compareed below
Illustrate embodiment of the present utility model.It should be evident that drawings in the following description are only of the present utility model one
A little embodiments, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to these
Accompanying drawing obtains other accompanying drawings, and obtains other embodiments.
To make only to schematically show the part related to the utility model in simplified form, each figure, they are not
It is represented as the practical structures of product.In addition, so that simplified form is readily appreciated, there is identical structure or work(in some figures
The part of energy, only symbolically depicts one of those, or only marked one of those.Herein, " one " is not only
Represent " only this ", the situation of " more than one " can also be represented；In text, single arrow represents the circulating direction of hydrogen fuel,
Double-head arrow represents the circulating direction of coolant；Upper and lower, left and right in text using accompanying drawing as standard, it is upper and lower as in accompanying drawing,
It is left and right, not fully represent actual conditions.
In embodiment one, as Figure 1-4, a kind of fuel cell energy recovery system, including：Fuel cell pack 100,
For producing electric power by electrochemical reaction；Hydrogen storage equipment (is not indicated) in figure, for being fired to the supply hydrogen of fuel cell pack 100
Material；Energy regenerating subsystem (is not indicated) in figure, the pressure energy for reclaiming hydrogen fuel；Heat-exchanger rig 400, for reclaiming fuel
The heat energy of battery pile 100；And hydrogen gas house steward 500, for hydrogen fuel incoming fuel battery pile 100；Hydrogen storage equipment, energy
Subsystem, heat-exchanger rig 400, hydrogen gas house steward 500 and fuel cell pack 100 are sequentially connected so that hydrogen fuel is passed sequentially through
Hydrogen storage equipment, power sub-system, heat-exchanger rig 400 and the incoming fuel battery pile 100 of hydrogen gas house steward 500.Consistent high pressure hydrogen fuel
After energy regenerating subsystem, because pressure energy is reclaimed by energy regenerating subsystem, therefore consistent high pressure hydrogen fuel will become
The hydrogen fuel of low-pressure low-temperature, now process heat-exchanger rig 400 becomes low-voltage high-temperature hydrogen fuel to the hydrogen fuel of low-pressure low-temperature again, from
And the pressure energy for realizing consistent high pressure hydrogen fuel is reclaimed and the recycling of the energy recovery of fuel cell pack 100, it is ensured that enter
The hydrogen fuel of fuel cell pack 100 is at optimal reaction temperature (60-80 DEG C).Therefore, the utility model passes through energy
Reclaiming subsystem and heat-exchanger rig 400 realizes the pressure energy and fuel cell pack 100 of fuel cell mesohigh hydrogen fuel
The recovery of heat energy so that the energy recycling of fuel cell, so that the capacity usage ratio of fuel cell is substantially increased, and then
It compensate for because of the energy loss that the hydrogen fuel that compresses or liquefy is consumed, greatly reduce the energy caused by compression or liquefaction hydrogen fuel
Amount consumption and loss.Because heat-exchanger rig 400 is by the energy recovery in fuel cell pack 100, it is ensured that in fuel cell pack 100
Hydrogen fuel optimal reaction temperature (60-80 DEG C)；Due to the recovery of heat energy, also reduce heat energy and be dispersed into environment and produce
Thermal pollution, and then cause the phenomenons such as urban heat land effect, with the good feature of environmental protection.
What deserves to be explained is, heat-exchanger rig 400 can be First Heat Exchanger (not indicated in figure)；Here consistent high pressure hydrogen fuel is
What the standard for being capable of pressure recovery energy with energy regenerating subsystem was set.Such as, when energy regenerating subsystem can be reclaimed
Higher than 2MPa pressure values hydrogen fuel when, consistent high pressure hydrogen fuel now is the hydrogen fuel more than 2MPa pressure values；Work as energy regenerating
When subsystem can reclaim the hydrogen fuel higher than 4MPa pressure values, consistent high pressure hydrogen fuel now is more than the combustion of the hydrogen of 4MPa pressure values
Material.Therefore high pressure here refers to be more than the minimal pressure force value that energy regenerating subsystem is capable of pressure recovery energy；Low pressure refers to low
In or equal to energy regenerating subsystem be capable of pressure recovery can minimal pressure force value.
In embodiment two, as shown in figure 1, on the basis of embodiment one, in hydrogen storage equipment and hydrogen gas house steward 500
Between be additionally provided with hydrogen bypass branch 600, and with energy regenerating subsystem and the formation energy-recuperation system of heat-exchanger rig 400
(not indicated in figure) forms on parallel relationship, and hydrogen bypass branch 600 and is additionally provided with the 3rd magnetic valve 610, for controlling hydrogen
The opening and closing of bypass branch 600, and the flow of control low pressure hydrogen fuel incoming fuel battery pile 100；So as to realize low pressure
Hydrogen fuel can be from the incoming fuel battery pile 100 of hydrogen bypass branch 600；And consistent high pressure hydrogen fuel can only pass through energy regenerating subsystem
Incoming fuel of uniting battery pile 100, realizes that the pressure energy of consistent high pressure hydrogen fuel is reclaimed.Energy regenerating subsystem includes the first expanding machine
310 and cooling branch road (not indicated in figure)；Cooling branch road is connected with fuel cell pack 100 and heat-exchanger rig 400 successively so that cold
But the coolant in branch road flows through fuel cell pack 100 and heat-exchanger rig 400 successively；The import of first expanding machine 310 and hydrogen storage
Equipment is connected, and outlet is connected with heat-exchanger rig 400, and the first expanding machine 310 reclaims the pressure energy of consistent high pressure hydrogen fuel.By making high pressure
Hydrogen fuel stream realizes the recovery to the pressure energy of hydrogen storage equipment mesohigh hydrogen fuel through the first expanding machine 310, so as to improve
The hydrogen fuel capacity usage ratio of fuel cell；And heated by the low-pressure low-temperature hydrogen fuel after 400 pairs of expansions of heat-exchanger rig,
So that the hydrogen fuel of incoming fuel battery pile 100 meets its reaction temperature (60-80 DEG C), while realizing heat energy and pressure energy
Reclaim, improve the capacity usage ratio of fuel cell.Cooling down branch road includes coolant inlet pipe road 321 and coolant output tube road
322, wherein coolant inlet pipe road 321 is located at the right side of fuel cell pack 100, and coolant output tube road 322 is filled located at heat exchange
Put 400 left side, and coolant inlet pipe road 321 and coolant output tube road 322 be interconnected, and forms cooling circuit so that
Coolant passes sequentially through coolant inlet pipe road 321, fuel cell pack 100, heat-exchanger rig 400 and coolant output tube road
322, then flow to after its exterior radiator distributes waste heat, return to coolant inlet pipe road 321 and form circulation；And
The hydrogen outlet house steward 700 and hydrogen for also including fuel cell pack 100 reclaim branch road 800；Hydrogen reclaim branch road 800 respectively with
Hydrogen gas house steward 500 connects with hydrogen outlet house steward 700 so that the hydrogen fuel in hydrogen outlet house steward 700 enters into hydrogen
Gas house steward 500, realizes the hydrogen fuel circulation of fuel cell pack 100.Hydrogen reclaims branch road 800 and is provided with booster 810, and supercharging
Device 810 and the first expanding machine 310 are coaxially connected so that the first expanding machine 310 is while the pressure energy of consistent high pressure hydrogen fuel is reclaimed
Drive booster 810 to operate, and then make it that unreacted hydrogen fuel enters in hydrogen outlet house steward 700 in fuel cell pack 100
Realize and recycle, reduce the consumption of hydrogen fuel, improve the utilization rate of hydrogen fuel.
In embodiment three, as shown in Fig. 2 on the basis of embodiment one, in addition to hydrogen bypass branch 600；Energy
Reclaim subsystem and hydrogen bypass branch 600 is in parallel located between hydrogen storage equipment and heat-exchanger rig 400.So that hydrogen bypass branch
The low-pressure low-temperature hydrogen fuel that 600 hydrogen fuel and energy regenerating subsystem comes out is first before incoming fuel battery pile 100
Pass through heat-exchanger rig 400, it is ensured that the optimal reaction temperature (60-80 DEG C) of the hydrogen fuel in incoming fuel battery pile 100, realize
The recycling of heat energy.And the 3rd magnetic valve 610 is additionally provided with hydrogen bypass branch 600, the 3rd magnetic valve 610 is used to control
The opening and closing of hydrogen bypass branch 600；So as to realize that low pressure hydrogen fuel can be from the incoming fuel of hydrogen bypass branch 600
Battery pile 100；And consistent high pressure hydrogen fuel can only realize consistent high pressure hydrogen fuel by energy regenerating subsystem incoming fuel battery pile 100
Pressure energy reclaim.Energy regenerating subsystem includes the first expanding machine 310 and cooling branch road (not indicated in figure)；Cool down branch road according to
It is secondary to be connected with fuel cell pack 100 and heat-exchanger rig 400 so that the coolant in cooling branch road flows through fuel cell pack successively
100 and heat-exchanger rig 400；The import of first expanding machine 310 is connected with hydrogen storage equipment, and outlet is connected with heat-exchanger rig 400, and first
Expanding machine 310 reclaims the pressure energy of consistent high pressure hydrogen fuel；And first be provided with the 4th magnetic valve between expanding machine 310 and hydrogen storage equipment
330, the 4th magnetic valve 330 is used for the opening and closing for controlling hydrogen fuel to enter power sub-system；And to hydrogen fuel incoming fuel
The flow of battery pile 100 is controlled.Realized by making consistent high pressure hydrogen fuel flow through the first expanding machine 310 to hydrogen storage equipment mesohigh
The recovery of the pressure energy of hydrogen fuel, so as to improve the hydrogen fuel capacity usage ratio of fuel cell；And made by heat-exchanger rig 400
Hydrogen bypass branch 600 hydrogen fuel and the low-pressure low-temperature hydrogen fuel that comes out of energy regenerating subsystem in incoming fuel battery
Heat-exchanger rig 400 is first passed through before heap 100, it is ensured that the optimal reaction temperature of the hydrogen fuel in incoming fuel battery pile 100
(60-80 DEG C), realizes the recycling of heat energy.Cooling down branch road includes coolant inlet pipe road 321 and coolant output tube
Road 322, wherein coolant inlet pipe road 321 are located at the right side of fuel cell pack 100, and coolant output tube road 322 is located at heat exchange
The left side of device 400, and coolant inlet pipe road 321 and coolant output tube road 322 are interconnected, form cooling circuit, make
Obtain coolant and pass sequentially through coolant inlet pipe road 321, fuel cell pack 100, heat-exchanger rig 400 and coolant output tube road
322, then flow to after its exterior radiator distributes waste heat, return to coolant inlet pipe road 321 and form circulation；And
The hydrogen outlet house steward 700 and hydrogen for also including fuel cell pack 100 reclaim branch road 800；Hydrogen reclaim branch road 800 respectively with
Hydrogen gas house steward 500 connects with hydrogen outlet house steward 700, and hydrogen reclaims branch road 800 and is provided with circulating pump 820 so that hydrogen
Hydrogen fuel in outlet house steward 700 enters hydrogen gas house steward 500, realizes the hydrogen fuel circulation of fuel cell pack 100.First is swollen
Swollen machine 310 is connected with generator 320 so that the pressure energy in the first expanding machine 310 changes into electric energy, adds original fuel electricity
The electric energy total amount that can be provided in pond so that fuel cell system increases an electric power source newly, improves the energy utilization of hydrogen fuel
Rate.
In example IV, as shown in figure 3, on the basis of embodiment one, in addition to hydrogen bypass branch 600；Energy
Reclaim subsystem and hydrogen bypass branch 600 is in parallel located between hydrogen storage equipment and heat-exchanger rig 400.So that hydrogen bypass branch
The low-pressure low-temperature hydrogen fuel that 600 hydrogen fuel and energy regenerating subsystem comes out is first before incoming fuel battery pile 100
Pass through heat-exchanger rig 400, it is ensured that the optimal reaction temperature (60-80 DEG C) of the hydrogen fuel in incoming fuel battery pile 100, realize
The recycling of heat energy.And the 3rd magnetic valve 610 is additionally provided with hydrogen bypass branch 600, the 3rd magnetic valve 610 is used to control
The opening and closing of hydrogen bypass branch 600；So as to realize that low pressure hydrogen fuel can be from the incoming fuel of hydrogen bypass branch 600
Battery pile 100；And consistent high pressure hydrogen fuel can only realize consistent high pressure hydrogen fuel by energy regenerating subsystem incoming fuel battery pile 100
Pressure energy reclaim.And also include hydrogen outlet house steward 700 and the hydrogen recovery branch road 800 of fuel cell pack 100；Hydrogen is returned
Revenue and expenditure road 800 is connected with hydrogen gas house steward 500 and hydrogen outlet house steward 700 respectively, and hydrogen reclaims branch road 800 provided with circulation
Pump 820 so that the hydrogen fuel in hydrogen outlet house steward 700 enters hydrogen gas house steward 500, realizes the hydrogen of fuel cell pack 100
Fuel recycle.Energy regenerating subsystem includes the first expanding machine 310 and cooling branch road (not indicated in figure)；Cool down branch road successively with
Fuel cell pack 100 and heat-exchanger rig 400 are connected so that the coolant in cooling branch road flows through the He of fuel cell pack 100 successively
Heat-exchanger rig 400；The import of first expanding machine 310 is connected with hydrogen storage equipment, and outlet is connected with heat-exchanger rig 400, the first expansion
Machine 310 is used for the pressure energy for reclaiming hydrogen fuel.First expanding machine 310 is connected with generator 320 so that in the first expanding machine 310
Pressure energy change into electric energy, add the electric energy total amount that can be provided of original fuel cell so that fuel cell system is new
Increase an electric power source, improve the capacity usage ratio of hydrogen fuel.Energy regenerating subsystem also include second expanding machine 340 with
And the second heat exchanger 370 being correspondingly arranged with the second expanding machine 340, the second expanding machine 340 is connected with generator 320；Second is swollen
The swollen heat exchanger 370 of machine 340 and second is sequentially connected in series between access hydrogen storage equipment and the first expanding machine 310；Close to hydrogen storage equipment
The first magnetic valve 350 is provided between second expanding machine 340 and hydrogen storage equipment；Second heat exchanger 370 is connected with hydrogen storage equipment, and the
The second magnetic valve 360 is provided between two heat exchangers 370 and hydrogen storage equipment；Cooling branch road is connected with the second heat exchanger 370 so that from
The coolant that heat-exchanger rig 400 comes out flows through the second heat exchanger 370.What deserves to be explained is, when the second expanding machine 340 is changed with second
When hot device 370 is multiple, each second expanding machine 340 is connected with generator 320；Multiple second expanding machines 340 and multiple the
Two heat exchangers 370 are successively alternately between series connection access hydrogen storage equipment and the first expanding machine 310；Close to the second expansion of hydrogen storage equipment
The first magnetic valve 350 is provided between machine 340 and hydrogen storage equipment；Each second heat exchanger 370 is connected with hydrogen storage equipment, and each
The second magnetic valve 360 is equipped between two heat exchangers 370 and hydrogen storage equipment；Cooling branch road is connected with each second heat exchanger 370,
So that the coolant come out from heat-exchanger rig 400 flows through each second heat exchanger 370 successively.Pass through the first expanding machine 310 and
Two expanding machines 340 form the multistage recovery of the pressure energy of consistent high pressure hydrogen fuel, so as to improve many of the pressure energy of consistent high pressure hydrogen fuel
The multiple utilization of the heat energy of secondary recovery and fuel cell pack 100, is greatly improved while electric power source is increased newly for fuel cell
The capacity usage ratio of fuel cell.
In the present embodiment, first expanding machine 310 and second expanding machine 340 constitute two grades of consistent high pressure hydrogen fuel
Expansion power generation system (is not indicated) in figure, such as the first expanding machine 310 be capable of pressure recovery can minimal pressure force value be 8MPa, the
When the minimal pressure force value that two expanding machines 340 are capable of pressure recovery energy is 16MPa：When hydrogen storage equipment can provide 20MPa high pressure
During hydrogen fuel, now, the second magnetic pond valve and the 3rd magnetic valve 610 are closed, and the first magnetic valve 350 is opened；Come out from hydrogen storage equipment
Consistent high pressure hydrogen fuel pass sequentially through the second expanding machine 340, the second heat exchanger 370, the first expanding machine 310, heat-exchanger rig 400, hydrogen
Gas inlet manifold 500 is simultaneously electrochemically reacted generation electric power into fuel cell pack 100；And when hydrogen storage equipment can be provided
During 15MPa consistent high pressure hydrogen fuel, now, the first magnetic valve 350 and the 3rd magnetic valve 610 are closed, and the second magnetic pond valve is opened；From storage
The consistent high pressure hydrogen fuel that hydrogen storage equipment comes out passes sequentially through the second heat exchanger 370, the first expanding machine 310, heat-exchanger rig 400, hydrogen and entered
Gas house steward 500 is simultaneously electrochemically reacted generation electric power into fuel cell pack 100；And when hydrogen storage equipment can provide 8MPa's
During consistent high pressure hydrogen fuel, now, the first magnetic valve 350 and the second magnetic valve 360 are closed, and the 3rd magnetic valve 610 is opened；Set from hydrogen storage
Standby consistent high pressure hydrogen fuel out passes sequentially through heat-exchanger rig 400, hydrogen gas house steward 500 and carried out into fuel cell pack 100
Electrochemical reaction produces electric power.In summary, in actual applications, people can be according to the pressure change of hydrogen fuel in hydrogen storage equipment
Value or constant pressure value set the expansion series and the first expanding machine 310 and the second expanding machine 340 of expansion power generation system
Correlated performance, index and model etc..
In embodiment five, as shown in figure 4, on the basis of example IV, being additionally arranged second expanding machine 340 and
Two heat exchangers 370, the three-level that now first expanding machine 310 and two the second expanding machines 340 constitute consistent high pressure hydrogen fuel is swollen
Swollen electricity generation system (not indicated in figure).Such as the first expanding machine 310 is capable of the minimal pressure force value of pressure recovery energy) it is 2MPa, place
The minimal pressure force value for being capable of pressure recovery energy in two grades of the second expanding machines 340 is 8MPa, the second expanding machine 340 in three-level
When the minimal pressure force value for being capable of pressure recovery energy is 12MPa：When hydrogen storage equipment can provide 30MPa consistent high pressure hydrogen fuel, this
When, two the second magnetic valves 360 and the 3rd magnetic valve 610 being connected with two the second heat exchangers 370 are closed, the first magnetic valve
350 open；The consistent high pressure hydrogen fuel come out from hydrogen storage equipment pass sequentially through be connected with the first electric valve of valve 350 the second expanding machine 340,
Close to foregoing second expanding machine 340 the second heat exchanger 370, close to foregoing second heat exchanger 370 the second expanding machine 340, lean on
Nearby state the second heat exchanger 370 of the second expanding machine 340, the first expanding machine 310, heat-exchanger rig 400, hydrogen gas house steward 500
And generation electric power is electrochemically reacted into fuel cell pack 100, realize three recovery of consistent high pressure hydrogen fuel pressure energy；And
When hydrogen storage equipment can provide 11MPa consistent high pressure hydrogen fuel, now, the first magnetic valve 350, close to the 3rd magnetic valve 610
Second magnetic valve 360 and the 3rd magnetic valve 610 are closed, and the second magnetic pond valve close to the first magnetic valve 350 is opened；From hydrogen storage equipment
Consistent high pressure hydrogen fuel out passes sequentially through the second heat exchanger 370 being connected with the second magnetic valve 360 opened, second with closing
The second heat exchanger 370 that magnetic valve 360 is connected, the first expanding machine 310, heat-exchanger rig 400, hydrogen gas house steward 500 and enter
Fuel cell pack 100 is electrochemically reacted generation electric power, realizes the secondary recovery of consistent high pressure hydrogen fuel pressure energy；And when hydrogen storage is set
During for the consistent high pressure hydrogen fuel that can provide 7MPa, now, the first magnetic valve 350, the second magnetic valve close to the first magnetic valve 350
360 and the 3rd magnetic valve 610 close, the second magnetic pond valve close to the 3rd magnetic valve 610 is opened；The high pressure come out from hydrogen storage equipment
Hydrogen fuel passes sequentially through the second heat exchanger 370, the first expanding machine 310, the heat-exchanger rig being connected with the second magnetic valve 360 opened
400th, hydrogen gas house steward 500 and generation electric power is electrochemically reacted into fuel cell pack 100, realize consistent high pressure hydrogen fuel pressure
The once recovery of power energy；And when hydrogen storage equipment can provide the consistent high pressure hydrogen fuel less than 2MPa, now, other magnetic valves are equal
Close, the 3rd magnetic valve 610 is opened；The consistent high pressure hydrogen fuel come out from hydrogen storage equipment passes sequentially through heat-exchanger rig 400, hydrogen gas
House steward 500 is simultaneously electrochemically reacted generation electric power into fuel cell pack 100.What deserves to be explained is, what the present embodiment was enumerated
A simply application example of three-level expansion power generation system, in actual applications, the first expanding machine 310 and the second expanding machine 340
Specific minimal pressure force value can be set according to its model or effect, and the numerical value of minimal pressure force value is not unique, can be flexible
Adjustment.
In embodiment six, as Figure 1-4, on the basis of embodiment two, three, four or five, gas storage equipment is provided with
First pressure sensor (is not indicated) in figure, located at the port of export of hydrogen storage equipment or be connected with hydrogen storage equipment 210 on, for examining
Survey the pressure of hydrogen fuel；First pressure sensor respectively with the first magnetic valve 350, the second magnetic valve 360, the 3rd magnetic valve 610
Connected with the 4th magnetic valve 330, the first magnetic valve 350 of control, the second magnetic valve 360, the 3rd magnetic valve 610 and the 4th magnetic valve
330 open and close.The pressure value for the hydrogen fuel that first pressure sensor can be real-time monitored according to itself is turned on and off
Corresponding magnetic valve (i.e. the first magnetic valve 350, the second magnetic valve 360, the 3rd magnetic valve 610 and the 4th magnetic valve 330), so that
Intelligentized control method and the management of the consistent high pressure hydrogen fuel of the different pressures rank of multiple expansion system are realized, fuel cell is improved
Intelligent and hommization.
In embodiment seven, as Figure 1-4, on the basis of embodiment two, three, four, five or six, hydrogen gas house steward
500 are sequentially provided with pressure-reducing valve 510, hydrogen with the airintake direction of hydrogen fuel enters magnetic valve 520 and second pressure sensor 530；Hydrogen
The access hydrogen of branch road 800 is reclaimed to enter between magnetic valve 520 and second pressure sensor 530.By to incoming fuel battery pile 100
The pressure of hydrogen fuel, temperature and the secondary control again of flow and monitoring, it is ensured that the hydrogen fuel of incoming fuel battery pile 100 is optimal
Reaction pressure, temperature and flow so that the hydrogen fuel of incoming fuel battery pile 100 is reacted with optimum response state, from
And the optimization that hydrogen fuel is utilized is realized, and then realize the energy optimization utilization of fuel cell.Due to fuel cell pack 100
During the course of the reaction, anode hydrogen gas can produce a small amount of water, in order to prevent water logging and reduce the consumption of hydrogen fuel, go out fuel
The hydrogen outlet of battery pile 100 is always connected with gas-liquid separator 900, entrance point and the hydrogen outlet house steward of gas-liquid separator 900
700 connections, first outlet end is reclaimed branch road 800 with hydrogen and connected, and second outlet end is connected with hydrogen outlet branch road 1000, and hydrogen
Gas export branch road 1000 goes out magnetic valve 1010 provided with hydrogen；Hydrogen outlet branch road 1000 is connected with hydrogen storage equipment.Pass through gas-liquid point
Hydrogen fuel and water are effectively separated from device 900, so that recycling for hydrogen fuel is realized, and by gas-liquid separator 900
Water export in time.
It should be noted that above-described embodiment can independent assortment as needed.Described above is only of the present utility model
Preferred embodiment, it is noted that for those skilled in the art, is not departing from the utility model principle
On the premise of, some improvements and modifications can also be made, these improvements and modifications also should be regarded as protection domain of the present utility model.
Claims (10)
1. a kind of fuel cell energy recovery system, it is characterised in that including：
Fuel cell pack, the fuel cell pack is used to produce electric power by electrochemical reaction；
Hydrogen storage equipment, the hydrogen storage equipment is used to supply hydrogen fuel to the fuel cell pack；
Energy regenerating subsystem, the energy regenerating subsystem is used for the pressure energy for reclaiming hydrogen fuel；
Heat-exchanger rig, the heat-exchanger rig is used for the heat energy for reclaiming the fuel cell pack；And
Hydrogen gas house steward, the hydrogen gas house steward is used for hydrogen fuel and enters the fuel cell pack；
The hydrogen storage equipment, the energy regenerating subsystem, the heat-exchanger rig, the hydrogen gas house steward and fuel electricity
Chi Dui is sequentially connected.
2. fuel cell energy recovery system according to claim 1, it is characterised in that：
Also include hydrogen bypass branch；
The energy regenerating subsystem and the heat-exchanger rig connect to form energy-recuperation system；The energy-recuperation system and institute
The parallel connection of hydrogen bypass branch is stated to be located between the hydrogen storage equipment and the hydrogen gas house steward.
3. fuel cell energy recovery system according to claim 1, it is characterised in that：
Also include hydrogen bypass branch；
The energy regenerating subsystem and hydrogen bypass branch parallel connection located at the hydrogen storage equipment and the heat-exchanger rig it
Between.
4. the fuel cell energy recovery system according to claim 1-3 any one, it is characterised in that：
The energy regenerating subsystem includes the first expanding machine and cooling branch road；
The cooling branch road is connected with the fuel cell pack and the heat-exchanger rig successively so that cold in the cooling branch road
But liquid flows through the fuel cell pack and the heat-exchanger rig successively；
The import of first expanding machine is connected with the hydrogen storage equipment, outlet and the heat-exchanger rig of first expanding machine
Connection, first expanding machine is used for the pressure energy for reclaiming hydrogen fuel.
5. fuel cell energy recovery system according to claim 4, it is characterised in that：
First expanding machine is connected with generator, for pressure energy to be converted into electric energy.
6. fuel cell energy recovery system according to claim 5, it is characterised in that：
The energy regenerating subsystem also includes several second expanding machines, and the heat exchange being correspondingly arranged with the second expanding machine
Device, each second expanding machine is connected with the generator；
Several described second expanding machines and heat exchanger several described replace successively the series connection access hydrogen storage equipment with it is described
Between first expanding machine；
The first magnetic valve is provided between the second expanding machine and the hydrogen storage equipment of the hydrogen storage equipment；
Each heat exchanger is connected with the hydrogen storage equipment, and is each equipped between the heat exchanger and the hydrogen storage equipment
Second magnetic valve；
The cooling branch road is connected with each heat exchanger so that the coolant come out from the heat-exchanger rig flows successively
Through each heat exchanger.
7. fuel cell energy recovery system according to claim 6, it is characterised in that：
The hydrogen storage equipment is provided with first pressure sensor, the pressure for detecting hydrogen fuel；
The first pressure sensor is connected with first magnetic valve and second magnetic valve respectively, controls first electricity
The open and close of magnet valve and second magnetic valve.
8. fuel cell energy recovery system according to claim 7, it is characterised in that：
Hydrogen bypass branch is provided with the 3rd magnetic valve；
The first pressure sensor is connected with the 3rd magnetic valve, controls the open and close of the 3rd magnetic valve.
9. the fuel cell energy recovery system according to claim 1-3 or 5-8 any one, it is characterised in that：
The hydrogen outlet house steward and hydrogen for also including the fuel cell pack reclaim branch road；
The hydrogen reclaims branch road and connected respectively with hydrogen gas house steward and the hydrogen outlet house steward so that hydrogen outlet house steward
Interior hydrogen fuel enters the hydrogen gas house steward.
10. fuel cell energy recovery system according to claim 9, it is characterised in that：
The hydrogen reclaims branch road and is provided with booster, and the booster is connected with the energy regenerating subsystem；
Or；
The hydrogen reclaims branch road and is provided with circulating pump.
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| CN201720194914.5U CN206524373U (en) | 2017-03-02 | 2017-03-02 | A kind of fuel cell energy recovery system |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107994243A (en) * | 2017-11-27 | 2018-05-04 | 常州工学院 | A kind of hydrogen fuel cell-powered system for refrigerator car |
| CN108386716A (en) * | 2018-04-13 | 2018-08-10 | 张家港氢云新能源研究院有限公司 | A kind of the hydrogen evaporation gas recycling system and technique of liquid hydrogen hydrogenation stations |
| CN108548093A (en) * | 2018-06-01 | 2018-09-18 | 张家港氢云新能源研究院有限公司 | A kind of vehicle-mounted lossless system for storing liquid hydrogen applied to fuel cell car |
| CN109962266A (en) * | 2017-12-25 | 2019-07-02 | 郑州宇通客车股份有限公司 | A kind of fuel cell hydrogen supply subsystem and fuel cell system |
| CN110718702A (en) * | 2018-06-26 | 2020-01-21 | 国家电投集团氢能科技发展有限公司 | Fuel cell system and hydrogen gas recirculation method for fuel cell system |
| CN111257756A (en) * | 2020-02-03 | 2020-06-09 | 浙江锋源氢能科技有限公司 | Fuel cell testing system |
| CN113054219A (en) * | 2021-03-02 | 2021-06-29 | 湖北文理学院 | Hydrogen-oxygen fuel cell system |
| CN113471482A (en) * | 2021-07-12 | 2021-10-01 | 上海捷氢科技有限公司 | Hydrogen fuel cell and installation integrated module thereof |
| CN113525176A (en) * | 2021-07-12 | 2021-10-22 | 深圳氢时代新能源科技有限公司 | Thermal management system, method and apparatus for fuel cell vehicle |
| CN113809356A (en) * | 2021-09-17 | 2021-12-17 | 烟台东德实业有限公司 | Energy-saving fuel cell thermal management system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107994243A (en) * | 2017-11-27 | 2018-05-04 | 常州工学院 | A kind of hydrogen fuel cell-powered system for refrigerator car |
| CN109962266A (en) * | 2017-12-25 | 2019-07-02 | 郑州宇通客车股份有限公司 | A kind of fuel cell hydrogen supply subsystem and fuel cell system |
| CN109962266B (en) * | 2017-12-25 | 2024-06-21 | 宇通客车股份有限公司 | Fuel cell hydrogen supply subsystem and fuel cell system |
| CN108386716A (en) * | 2018-04-13 | 2018-08-10 | 张家港氢云新能源研究院有限公司 | A kind of the hydrogen evaporation gas recycling system and technique of liquid hydrogen hydrogenation stations |
| CN108548093A (en) * | 2018-06-01 | 2018-09-18 | 张家港氢云新能源研究院有限公司 | A kind of vehicle-mounted lossless system for storing liquid hydrogen applied to fuel cell car |
| CN110718702A (en) * | 2018-06-26 | 2020-01-21 | 国家电投集团氢能科技发展有限公司 | Fuel cell system and hydrogen gas recirculation method for fuel cell system |
| CN111257756A (en) * | 2020-02-03 | 2020-06-09 | 浙江锋源氢能科技有限公司 | Fuel cell testing system |
| CN113054219A (en) * | 2021-03-02 | 2021-06-29 | 湖北文理学院 | Hydrogen-oxygen fuel cell system |
| CN113471482A (en) * | 2021-07-12 | 2021-10-01 | 上海捷氢科技有限公司 | Hydrogen fuel cell and installation integrated module thereof |
| CN113525176A (en) * | 2021-07-12 | 2021-10-22 | 深圳氢时代新能源科技有限公司 | Thermal management system, method and apparatus for fuel cell vehicle |
| CN113809356A (en) * | 2021-09-17 | 2021-12-17 | 烟台东德实业有限公司 | Energy-saving fuel cell thermal management system |
| CN113809356B (en) * | 2021-09-17 | 2022-04-12 | 烟台东德实业有限公司 | Fuel cell thermal management system |
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