CN208970646U - A kind of fuel cell started quickly at low temperature system - Google Patents
A kind of fuel cell started quickly at low temperature system Download PDFInfo
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- CN208970646U CN208970646U CN201822027586.7U CN201822027586U CN208970646U CN 208970646 U CN208970646 U CN 208970646U CN 201822027586 U CN201822027586 U CN 201822027586U CN 208970646 U CN208970646 U CN 208970646U
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- pile
- fuel cell
- control system
- carbon nanotube
- current controller
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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 started quickly at low temperature system, including pile, starting battery, gas carbon nanotube microheater, control system and current controller, the current controller is connect with the pile and control system respectively, the control system is powered by the starting battery, and controls the pile intermittent discharge time and size of current by the current controller.The gas passed through is given to be heated using the infrared heating function of carbon nanotube.Current controller is large current discharge fuel cell pile under control system control in the utility model, make to generate Joule heat inside pile, make to be rapidly heated inside pile, it is heated into heap gas by carbon nanotube microheater, rapidly reaches the optimum working temperature of fuel cell, after pile starting, it is rapidly achieved full-load power, according to actual condition, and the state-of-charge situation and external load demands size of starting battery, come whether decision systems give starting battery charging.
Description
Technical field
The invention belongs to field of fuel cell technology, and in particular to a kind of fuel cell is rapidly achieved most at low ambient temperatures
The starting method of best performance.
Background technique
Fuel cell as a kind of efficient, environmental-friendly power generator, base station power, middle-size and small-size power station, electric vehicle,
Backup power source, portable power supplies etc., have broad application prospects.Fuel cell can be divided into pem fuel electricity
Pond, direct methanol fuel cell, alkaline fuel cell, solid oxide fuel cell, fuse salt fuel cell, Microbial fuel
Battery, biological fuel cell etc..Fuel cell is mainly made of end plate, collector plate, bipolar plates, membrane electrode etc..In order to make to fire
Material battery preferably adapts to various environmental works, and fuel cell system is mainly by fuel cell, control system, electric power transformation system
System, startup power supply and other auxiliary systems composition.
Temperature is that can fuel cell system reach the workable necessary parameter of optimality, the inside temperature of fuel cell pile
Degree determines the operation working condition of pile, it is however generally that, stack temperature pile operating status at 60---70 DEG C is best, can
To reach rated power.Under internal low-temperature condition, pile is extremely difficult to rated power.Temperature is too low, and fuel cell needs very
It can be only achieved optimum working performance for a long time, in order to make fuel cell system adapt to low temperature environment, be usually added within the system
Auxiliary heating module makes the gas into pile have suitable temperature by the way that the electric energy of startup power supply is converted into thermal energy, with
Reach optimum performance in a short time convenient for fuel cell.
System auxiliary heats main following Three models at present:
1, air is heated.A kind of fuel cell started quickly at low temperature as disclosed in Publication No. CN103855416A
System and its starting method.But since air mass flow is big, air tail gas can take away most of heat, cause energy consumption big, add
The thermal efficiency is low, unfavorable to the energy output of entire fuel cell system, reduces the efficiency of fuel cell system.
2, entire pile is heated, and is needed an artificial environment, is guaranteed the temperature of pile, there is also device it is excessive and
Problems of energy consumption.
3, pole plate is heated, has the temperature controlled fuel cell of stagewise low as disclosed in CN103682403A
Warm quick start system and method preheat end plate, insulation board and collector plate by pile heater.But due to pile
Structure is complicated, and the mode heated to pole plate will affect pole plate electricity output performance, and higher to the processing request of pole plate.
It is the slow mode of common several solution fuel cell start-ups with upper type, using traditional heating method to pile
Disengaging gas and coolant liquid are heated.But still there are energy consumption height, start slow-footed defect, cannot reach makes fuel cell system
System quickly carries out the purpose of cold-starting.
Summary of the invention
Goal of the invention: present invention aims in view of the deficiencies of the prior art, provide a kind of fuel cell low temperature quickly to open
Dynamic system is different from the mode that tradition solves fuel cell cold-starting, is large current discharge using fuel cell and generates Joule heat,
It is internally heated from fuel cell pile, heating speed is fast, and fuel cell cold-starting speed is fast.
Technical solution: fuel cell started quickly at low temperature system of the present invention, including pile, starting battery, heater
And control system, it further include current controller, the current controller is connect with the pile and control system respectively, the control
System processed is powered by the starting battery, and is controlled the pile intermittence by the current controller and discharged, pile interval
Property discharge time and size of current are controlled by current controller；
The heater is located on the hydrogen gas pipeline of pile, and the heater is connect with the control system, described
Control system is powered by the starting battery, controls the heater heating.
Further preferably technical solution is the present invention, hydrogen gas pipeline, the hydrogen outlet pipe, sky of the pile
Gas/oxygen intake pipe road, air/oxygen outlet pipe, coolant liquid inlet pipe and coolant liquid outlet tube road are provided with
Solenoid valve, each solenoid valve and the control system communication connection, the control system control the on-off and aperture of each solenoid valve.
Preferably, the heater be carbon nanotube microheater, the carbon nanotube microheater be located at hydrogen into
On air pipe, hydrogen enters the pile via the carbon nanotube microheater, and carbon nanotube is infrared to the gas passed through
Heating.
Above system of the present invention carries out fuel cell started quickly at low temperature method, includes the following steps:
(1) internal temperature of the environment temperature outside control system acquisition and pile, determines discharge time, the interval of pile
Time and size of current；
(2) control system control current controller work, opens hydrogen gas pipeline and air/oxygen air inlet pipe in advance
Road, hydrogen and air/oxygen enter in pile, and current controller controls pile intermittence heavy-current discharge, guarantee that pile is being put
Under electricity condition, down to 0.2V, the discharge current of pile is adjusted by current controller to be controlled pile monolithic voltage；
(3) after pile internal temperature reaches setting value, coolant liquid inlet pipe and coolant liquid outlet tube road are opened, it is cold
But liquid enters pile, and gradually carries out loading cooling pile；
(4) after pile starting, it is rapidly achieved full-load power, according to actual condition, and the state-of-charge situation of starting battery
And external load demands size, come whether decision systems give starting battery charging.
Preferably, it is additionally provided with carbon nanotube microheater on the hydrogen gas pipeline of pile, in step (2), control
The carbon nanotube microheater is controlled while system control pile electric discharge and is heated to set temperature, and hydrogen is via the carbon
Enter in the pile after the preheating of nanotube microheater；The electric energy of the carbon nanotube microheater is mentioned by starting battery
For.
The utility model has the advantages that being provided with current controller in (1) present invention, current controller makes fuel under control system control
Battery stack is large current discharge, and the heavy-current discharge of moment makes pile monolithic voltage down to 0.2v, close to short circuit, due to big
The electric discharge of electric current makes to generate Joule heat inside pile, makes to be rapidly heated inside pile, rapidly reaches the best work of fuel cell
Make temperature, to reach optimum Working at a lower temperature in a relatively short period of time, realizes fuel cell cold-starting
Purpose；Fuel cell cold-starting speed of the present invention is fast, and fuel cell cold-starting time, and system hypothermia has been greatly shortened
Start less energy consumption, generating efficiency is high；
(2) present invention is provided with carbon nanotube microheater on hydrogen gas pipeline, and carbon nano-tube material is made micro-
Type heater, small in size, heating efficiency is high, less energy consumption, when the microheater that hydrogen is prepared by carbon nanotube, is received using carbon
The fuel factor of mitron enters fuel cell pile after carrying out infrared heating, is combined by two kinds of heating methods, further shortens combustion
Material battery reaches the time of optimum condition；
(3) the case where system of the invention can be according to ambient temperature, adjustment fuel cell heavy-current discharge electric current and carbon
The heating time of nanotube microheater and temperature, and pass through program Solidification to Fuel Cell Control program the inside, low-temperature starting
Dynamic module compact, control is accurate, and modularization, intelligence degree are high, at low cost, keeps entire fuel cell system more compact, is convenient for
Mass production.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of activation system of the present invention；
In figure, 1- carbon nanotube microheater；2- pile；3- current controller；4- control system；5- starts battery；
6- air/oxygen air inlet pipeline；7- air/oxygen outlet pipe；8- coolant liquid inlet pipe；9- coolant liquid outlet tube road；10-
Hydrogen gas pipeline；11- hydrogen outlet pipe.
Specific embodiment
Technical solution of the present invention is described in detail below by attached drawing, but protection scope of the present invention is not limited to
The embodiment.
Embodiment: a kind of fuel cell started quickly at low temperature system, including pile 2, starting battery 5, control system 4 and electricity
Stream controller 3, current controller 3 are connect with pile 2 and control system 4 respectively, and control system 4 is powered by starting battery 5, and is led to
Overcurrent controller 3 controls the intermittent electric discharge of pile 2.
Hydrogen gas pipeline 10, hydrogen outlet pipe 11, air/oxygen air inlet pipeline 6, the air/oxygen outlet of pile 2
Solenoid valve, each solenoid valve and control system 4 are provided on pipeline 7, coolant liquid inlet pipe 8 and coolant liquid outlet tube road 9
Communication connection, control system 4 control the on-off and aperture of each solenoid valve.
It is additionally provided with carbon nanotube microheater 1 on the hydrogen gas pipeline 10 of pile 2, hydrogen is micro- via carbon nanotube
Type heater 1 enters pile 2.Carbon nanotube microheater 1 is connect with control system 4, and control system 4 is supplied by starting battery 5
Electricity, control heater heating.
The system carries out fuel cell started quickly at low temperature method, includes the following steps:
(1) control system 4 acquires the internal temperature of external environment temperature and pile 2, determine pile 2 discharge time,
Intermittent time and size of current；
(2) control system 4 controls current controller 3 and works, and opens hydrogen gas pipeline 10 and air/oxygen air inlet in advance
Pipeline 6, hydrogen and air/oxygen enter in pile 2；Current controller 3 controls the intermittent heavy current discharging time of pile 2 and puts
Electric current guarantees pile 2 in the discharged condition, and pile monolithic voltage is down to 0.2V, while the control of control system 4 carbon nanotube is micro-
Type heater 1 is heated to set temperature；The discharge current of pile 2 and the electric energy of carbon nanotube microheater 1 are by starting battery 5
It provides.
(3) after 2 internal temperature of pile reaches setting value, coolant liquid inlet pipe 8 and coolant liquid outlet tube road are opened
9, coolant liquid enters pile 2, and gradually carries out loading cooling pile 2；And pass through hydrogen outlet pipe 11 and air/oxygen outlet
Draining is exhausted in pipeline 7.
(4) after pile starting, it is rapidly achieved full-load power, according to actual condition, and the state-of-charge situation of starting battery
And external load demands size, come whether decision systems give starting battery charging.
In this system the electric energy of startup power supply by carbon nanotube microheater 1 be heated to assigned temperature time be 3 ~
5s, low energy consumption, high-efficient；Entire fuel cell system quick start in 20s, reaches best work far below conventional fuel cell
The time of condition.
As described above, must not be explained although the present invention has been indicated and described referring to specific preferred embodiment
For the limitation to invention itself.It without prejudice to the spirit and scope of the invention as defined in the appended claims, can be right
Various changes can be made in the form and details for it.
Claims (3)
1. a kind of fuel cell started quickly at low temperature system, including pile, starting battery, heater and control system, feature
It is, further includes current controller, the current controller is connect with the pile and control system respectively, the control system
It is powered by the starting battery, and the pile intermittence is controlled by the current controller and is discharged；
The heater is located on the hydrogen gas pipeline of pile, and the heater is connect with the control system, the control
System is powered by the starting battery, controls the heater heating.
2. fuel cell started quickly at low temperature system according to claim 1, which is characterized in that the hydrogen of the pile into
Air pipe, hydrogen outlet pipe, air/oxygen air inlet pipeline, air/oxygen outlet pipe, coolant liquid inlet pipe and cold
But liquid outlet tube road is provided with solenoid valve, each solenoid valve and the control system communication connection, the control system control
The on-off and aperture of each solenoid valve.
3. fuel cell started quickly at low temperature system according to claim 2, which is characterized in that the heater is received for carbon
Mitron microheater, the carbon nanotube microheater are located on hydrogen gas pipeline, and hydrogen is micro- via the carbon nanotube
Type heater enters the pile, and carbon nanotube is to the gas infrared heating passed through.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822027586.7U CN208970646U (en) | 2018-12-05 | 2018-12-05 | A kind of fuel cell started quickly at low temperature system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822027586.7U CN208970646U (en) | 2018-12-05 | 2018-12-05 | A kind of fuel cell started quickly at low temperature system |
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| Publication Number | Publication Date |
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| CN208970646U true CN208970646U (en) | 2019-06-11 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113793952A (en) * | 2021-08-12 | 2021-12-14 | 上海电气集团股份有限公司 | Fuel cell system and low-temperature starting control method and device thereof |
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2018
- 2018-12-05 CN CN201822027586.7U patent/CN208970646U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113793952A (en) * | 2021-08-12 | 2021-12-14 | 上海电气集团股份有限公司 | Fuel cell system and low-temperature starting control method and device thereof |
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