CN202712345U - Low-temperature started air heating system of fuel battery - Google Patents
Low-temperature started air heating system of fuel battery Download PDFInfo
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- CN202712345U CN202712345U CN2012203696389U CN201220369638U CN202712345U CN 202712345 U CN202712345 U CN 202712345U CN 2012203696389 U CN2012203696389 U CN 2012203696389U CN 201220369638 U CN201220369638 U CN 201220369638U CN 202712345 U CN202712345 U CN 202712345U
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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 low-temperature started air heating system of a fuel battery. The system comprises an air filter, an air pump, an air heater, a humidifier, an inlet temperature sensor, a fuel battery pile, a pile temperature sensor, a storage battery and a controller, wherein the pile temperature sensor is arranged on the fuel battery pile. By the air heating system, air heated by the air heater heats an air reaction interface of the fuel battery pile and other battery components, so that the speed of melting ice crystals on an electrode is increased, and mass transfer of fuel and proton transmission can be executed successfully; a phenomenon that the electrode is damaged because of partial overheat caused by high-power generation is avoided; starting of the fuel battery under the condition that the temperature is less than 0 DEG C is accelerated; moreover, after the fuel battery is quickly started, energy consumption of the storage battery of an auxiliary power supply can be saved; a phenomenon that the fuel battery cannot be started because of overdischarging or insufficient power is avoided; and the service life of the storage battery is prolonged.
Description
Technical field
The utility model belongs to the Proton Exchange Membrane Fuel Cells field, relates in particular to a kind of air heating system of fuel cell cold-starting.
Background technology
The fuel cell start-up of ambient temperature when subzero is the difficult problem of a whole fuel cell industry, because Proton Exchange Membrane Fuel Cells is a reaction that has water to participate in, when ambient temperature is lower than 0 ℃, fuel battery inside will freeze, can't normal power generation.Proton Exchange Membrane Fuel Cells wants to produce electric energy, need to be to its humidification, and proton can pass through membrane electrode and generation current under the effect of water.With regard to producing a problem, be lower than in 0 ℃ in temperature like this, the water of fuel battery inside can crystallize into ice, exists although still have micro-ice crystal through processing such as purgings, affects the transmission of mass transfer and proton, makes fuel cell can't start or start slow.The supply of fuel cell fuel such as air, hydrogen when starting needs accessory power supply to help it and finishes, and then could use the electric energy that oneself produces to drive whole system.Be in the subzero situation in temperature, fuel cell is subjected to the restriction of temperature, and the mass transfer of fuel, the transmission of proton are affected, and can not significantly generate electricity, the so long-time electric weight of battery consumption etc. in start-up course is until the fuel cell normal operation.Accumulator electric-quantity is limited, and temperature is in hydraulic performance decline when subzero, for a long time discharge, and the performance of storage battery may not necessarily meet the demands, and storage battery also damages easily.Therefore, fuel cell generation will accelerate to start, and enters fast normal operating conditions.
As shown in Figure 3, the sub-zero temperature start-up system of prior art, generally comprise air filter, air pump, humidifier, fuel cell pack and stack temperature transducer, do not comprise air heater, air reaction interface and its assembly are not heated, but the used heat that produces when relying on the fuel cell self generating improves the temperature of oneself, temperature-rise ratio is slower like this, the electric weight of the accessory power supplys such as easily lesion electrode, and a large amount of battery consumptions is unfavorable for cold-starting.
Summary of the invention
Under the subzero low-temperature condition, started slow deficiency for overcoming fuel cell generation, the purpose of this utility model is to provide a kind of air heating system of fuel cell cold-starting, can realize that fuel cell is rapidly heated, fuel cell is started and normal operation fast.
To achieve these goals, the technical solution of the utility model is as follows:
A kind of air heating system of fuel cell cold-starting, comprise air filter, air pump, air heater, humidifier, inlet temperature sensor, fuel cell pack, stack temperature transducer, storage battery and controller, described air filter is connected with air pump, air heater, humidifier, inlet temperature sensor, fuel cell pack successively by pipeline; Described air heater links to each other with storage battery, fuel cell pack by circuit; The stack temperature transducer is installed on the described fuel cell pack; The information that described controller admission of air heater, inlet temperature sensor, stack temperature transducer and storage battery are uploaded is also controlled air heater heating and battery switch.
Compared with prior art, the utlity model has following beneficial effect:
Fuel cell is the difficult problem of a whole fuel cell industry in the startup of subzero temperature, because Proton Exchange Membrane Fuel Cells is a reaction that has water to participate in, when ambient temperature is lower than 0 ℃, fuel battery inside will freeze, can't normal power generation.Existing subzero cold-starting technology generally is that the used heat that oneself produces during with fuel cell power generation heats oneself, melted ice crystal, consuming time longer, wait to adopt in the situation of storage battery as the assistant starting power supply vehicle-mounted, because fuel cell at low temperatures can not the high-power output electric energy, produce the phenomenon of over-discharge can, to exhaust accumulator electric-quantity or damage storage battery, and make the fuel cell start-up failure, storage battery is because low temperature discharge simultaneously, degradation, the life-span reduces.The utility model utilizes air after the air heater heating to air reaction interface and the heating of other battery component of fuel cell pack, accelerate the ice crystal on the ablating electrode, the mass transfer of fuel and the transmission of proton are carried out smoothly, can not cause the local overheating lesion electrode because of Electricity Generation, accelerate the startup that temperature is in the subzero fuel cell, after fuel cell starts fast simultaneously, can save the energy consumption of accessory power supply storage battery, preventing over-discharge can or power shortage can't starting fluid battery phenomenon, prolongs the useful life of storage battery.
Description of drawings
The utility model has accompanying drawing 4 width of cloth, wherein:
Fig. 1 is a kind of air heating system schematic diagram of fuel cell cold-starting.
Fig. 2 is a kind of air heating system control method flow chart of fuel cell cold-starting.
Fig. 3 is the fuel cell generation air system schematic diagram of prior art.
Fig. 4 is the test result correlation curve figure of the utility model and prior art.
Among the figure: 1, air filter, 2, air pump, 3, air heater, 4, humidifier, 5, inlet temperature sensor, 6, fuel cell pack, 7, stack temperature transducer, 8, storage battery, 9, controller, 101, test result curve of the present utility model, 202, the test result curve of prior art.
Embodiment
Below in conjunction with accompanying drawing the utility model is described further.As shown in Figure 1, a kind of air heating system of fuel cell cold-starting, comprise air filter 1, air pump 2, air heater 3, humidifier 4, inlet temperature sensor 5, fuel cell pack 6, stack temperature transducer 7, storage battery 8 and controller 9, described air filter 1 is connected with air pump 2, air heater 3, humidifier 4, inlet temperature sensor 5, fuel cell pack 6 successively by pipeline; Described air heater 3 links to each other with storage battery 8, fuel cell pack 6 by circuit; On the described fuel cell pack 6 stack temperature transducer 7 is installed; The information that described controller 9 admission of air heaters 3, inlet temperature sensor 5, stack temperature transducer 7 and storage battery 8 are uploaded is also controlled air heater 3 heating and storage battery 8 switches.
As shown in Figure 2, control method of the present utility model may further comprise the steps:
A, starting fluid battery pile 6 detect fuel cell packs 6 temperature T 2 by stack temperature transducer 7, when T2≤0 ℃, start air heaters 3 by storage battery 8 power supplies, then do not start air heater 3 when T2＞0 ℃;
B, detect air themperature T1 by inlet temperature sensor 5, and air themperature T1 is passed to controller 9, controller 9 control air heaters 3 keep temperature T 3, and described T3 is 70-100 ℃;
C, when storage battery 8 electric weight be lower than its capacity 40% the time, controller 9 receives and cuts off storage battery 8 behind the signal, transfers to by fuel cell pack 6 power supplies;
D, when 2＞0 ℃ of fuel cell pack 6 temperature T, control air heater 3 stopped heatings.
The utility model when work, mainly rely on air after air heater 3 heating to air reaction interface and the heating of other battery component of fuel cell pack 6.
Below by result of the test the beneficial effects of the utility model are described.In the test, adopt the fuel cell pack 6 of specified 20kW, the accessory power supply that is used for starting is the storage battery 8 of 4A/h, and air heater 3 is the pipeline heater of 6KW for maximum power.Experiment is carried out in the environment storehouse.Fuel cell pack 6 begins this experiment behind 12 hours-10 ℃ freezing.By storage battery 8 starting fluid battery pile 6, for preventing large load to the pile injury, give the load of fuel cell pack 5KW, with air heater 3 fuel cell pack 6 that together heats up.Measure through stack temperature transducer 7, fuel cell pack 6 temperature are-10 ℃ during startup, it is T2＜0 ℃, then start air heater 3 and add hot-air, 3 minutes by inlet temperature sensor 5 detections, temperature T 1 is 80 ℃, and controller 9 sends signal, and keeping air themperature is 80 ℃, at this moment, the stack temperature T2 that stack temperature transducer 7 detects is-4 ℃, and accumulator electric-quantity is 58%, is not less than 40%, can not damage because of over-discharge can, the control air heater continues heating, and after 2 minutes, accumulator electric-quantity also has 45%, fuel cell pack 6 temperature T 2 are 1 ℃, these Time Controller 9 control air heater stopped heatings, fuel cell is finished sub-zero temperature and is started, and beginning normally adds off-load.The temperature rise test of prior art has also been done in test.Result of the test shows, the sub-zero temperature startup temperature rise speed of employing reflux heating air system fast 6 minutes than prior art cold-starting.Both see the test result curve 101 of the present utility model of accompanying drawing 4 and the test result curve 202 of prior art at the test result contrast.
The described embodiment of the utility model only is a part of embodiment of the present utility model, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that obtains under the creative work prerequisite, all belong to the scope of the utility model protection.
Claims (1)
1. the air heating system of a fuel cell cold-starting, it is characterized in that: comprise air filter (1), air pump (2), air heater (3), humidifier (4), inlet temperature sensor (5), fuel cell pack (6), stack temperature transducer (7), storage battery (8) and controller (9), described air filter (1) is connected with air pump (2), air heater (3), humidifier (4), inlet temperature sensor (5), fuel cell pack (6) successively by pipeline; Described air heater (3) links to each other with storage battery (8), fuel cell pack (6) by circuit; Stack temperature transducer (7) is installed on the described fuel cell pack (6); The information that described controller (9) admission of air heater (3), inlet temperature sensor (5), stack temperature transducer (7) and storage battery (8) are uploaded is also controlled air heater (3) heating and storage battery (8) switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012203696389U CN202712345U (en) | 2012-07-27 | 2012-07-27 | Low-temperature started air heating system of fuel battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012203696389U CN202712345U (en) | 2012-07-27 | 2012-07-27 | Low-temperature started air heating system of fuel battery |
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| Publication Number | Publication Date |
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| CN202712345U true CN202712345U (en) | 2013-01-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012203696389U Expired - Lifetime CN202712345U (en) | 2012-07-27 | 2012-07-27 | Low-temperature started air heating system of fuel battery |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113793948A (en) * | 2021-09-10 | 2021-12-14 | 大连理工大学 | Fuel cell automobile cold start system based on eddy current heating |
| CN113903944A (en) * | 2021-09-23 | 2022-01-07 | 同济大学 | Fuel cell system starting method |
-
2012
- 2012-07-27 CN CN2012203696389U patent/CN202712345U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113793948A (en) * | 2021-09-10 | 2021-12-14 | 大连理工大学 | Fuel cell automobile cold start system based on eddy current heating |
| CN113903944A (en) * | 2021-09-23 | 2022-01-07 | 同济大学 | Fuel cell system starting method |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130130 |
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| CX01 | Expiry of patent term |