CN101989665B - Self-circulation fuel cell control system and method thereof - Google Patents
Self-circulation fuel cell control system and method thereof Download PDFInfo
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- CN101989665B CN101989665B CN2010102454123A CN201010245412A CN101989665B CN 101989665 B CN101989665 B CN 101989665B CN 2010102454123 A CN2010102454123 A CN 2010102454123A CN 201010245412 A CN201010245412 A CN 201010245412A CN 101989665 B CN101989665 B CN 101989665B
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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
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- Y02E60/30—Hydrogen technology
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Abstract
The invention discloses a self-circulation fuel cell control system and a method thereof. A fuel cell electric pile charges and exhausts gas in a bidirectional way, one end of an oxidant passage is provided with a container used for holding an oxidant, the other end of the oxidant passage is divided into two paths which are respectively connected with two ends of the fuel cell electric pile through a first solenoid valve and a fourth solenoid valve, a bypass pipe provided with a third solenoid valve is connected between the first solenoid valve and the fuel cell electric pile, and a bypass pipe provided with a second solenoid valve is connected between the fourth solenoid valve and the fuel cell electric pile. By sequentially opening and closing the solenoid valves for the control of bidirectional gas charge and exhaust, the oxidant is not needed to be filtered, humidified or heated; and the invention has the advantages of low working pressure, good sealability, simple structure, convenient operation and low cost.
Description
Technical field
The invention belongs to the fuel cell system field, particularly a kind of self-circulation fuel cell control system and method thereof.
Background technology
The common a plurality of battery units of fuel cell pack consist of, and each battery unit comprises two electrodes (bipolar plates) and separates the membrane electrode assembly (MEA) of these two electrodes, and assembling with being one another in series, forms fuel cell pack.By supplying with suitable reactant for each electrode, namely give an electrode feed fuels and another supplies with oxidant, realize electrochemical reaction, thereby form potential difference between electrode, and therefore produce electric energy.
In typical fuel cell system take airborne oxygen as oxidant, fuel and air enter fuel cell by one group of passage respectively.Before air enters fuel cell, need to be handled as follows:
1, by filter, air is filtered, cause the shortening of fuel battery service life with other pernicious gas of avoiding mixing in air;
2, carry out supercharging by supercharging circulating pump (air compressor), with the quantity delivered of assurance oxidant, and the water that impels reaction to generate is in time discharged.
3, as required, increase humidifier, be used for air is carried out humidification, to guarantee electrochemical reaction of fuel battery speed;
4, as required, increase heater, be used for air is heated, to guarantee the working temperature of fuel cell.
After the airborne oxygen part that enters fuel cell and fuel generation electrochemical reaction, the part that has neither part nor lot in electrochemical reaction in air is discharged together with the water that reacts generation, heat, due to the entering and discharge the relative environment that is in an opening of gas, therefore can be referred to as opening fuel cell system.There is following shortcoming in this fuel cell system:
1, be subject to oxygen concentration in air, fuel cell needs higher operating pressure, and supercharging circulating pump live load is larger;
2, the water of reaction generation is mainly discharged with air, and is wayward, fails to be utilized effectively in fuel cell, and the air that enters is needed extra humidifier or need to need to increase relatively good moist keeping measures in fuel cell;
3, the water of reaction generation needs larger pressure to discharge, and this further causes the work load of supercharging circulating pump;
4, the heat of reaction generation is discharged with air, fails to be utilized preferably at fuel cell, even partly be used for fuel cell by modes such as heat exchanges, but is limited by its opening structure, and the heat that reaction produces is wayward.
But although 5, the airborne partial impurities of filter filtering, in the environment of high pollution, be difficult to carry out continuous firing, have a strong impact on the performance of fuel cell.
Although 6 can carry out supercharging by the supercharging circulating pump, in the thin environment of the oxidants such as plateau, the live load of supercharging circulating pump further strengthens, and this is difficult to guarantee electrochemical reaction of fuel battery speed, also can produce significant impact to the performance of fuel cell.
Present solution:
Adopt the powerful recovery pump of single performance to carry out draining circulation, heat exchange, ventilation to fuel cell pile fuel channel or oxidant channel.The shortcoming of this scheme is that if the recovery pump breaks down, fuel cell pack can't work.
In view of this, those skilled in the art provide a kind of simple in structure for the problems referred to above, and operation is convenient, and self-circulation fuel cell control system with low cost and method thereof.
Summary of the invention
One of purpose of the application is, a kind of self-loopa fuel cell system is provided.
Another purpose of the application is, a kind of self-circulation fuel cell control system is provided.
Another purpose of the application is, a kind of self-loopa Fuel Cell Control method is provided.
The application adopts following technical scheme:
the invention provides a kind of self-loopa fuel cell system, comprise the fuel cell pile that is provided with fuel channel and oxidant channel, described fuel cell pile is two-way to be advanced, exhaust, one end of described oxidant channel is provided with the oxidant vessel for the dress oxidant, the other end is divided into two-way, pass through respectively the two ends of the first electromagnetically operated valve and the 4th electromagnetically operated valve connecting fuel battery pile, be connected the bypass pipe with the 3rd electromagnetically operated valve between described the first electromagnetically operated valve and described fuel cell pile, be connected the bypass pipe with the second electromagnetically operated valve between described the 4th electromagnetically operated valve and described fuel cell pile.
the present invention also provides a kind of self-loopa fuel cell system, comprise the fuel cell pile that is provided with fuel channel and oxidant channel, described fuel cell pile is two-way to be advanced, exhaust, one end of described oxidant channel is provided with the oxidant vessel for the dress oxidant, the other end is divided into two-way, pass through respectively the two ends of the first electromagnetically operated valve and the 4th electromagnetically operated valve connecting fuel battery pile, be provided with the first air-water separator between described the first electromagnetically operated valve and described fuel cell pile, bypass pipe with the 3rd electromagnetically operated valve connects described the first air-water separator, be provided with the second air-water separator between described the 4th electromagnetically operated valve and described fuel cell pile, bypass pipe with the second electromagnetically operated valve connects described the second air-water separator.
The present invention also provides a kind of self-circulation fuel cell control system, comprise the fuel cell pile that is provided with fuel channel and oxidant channel, the two-way inlet and outlet of described fuel cell pile, one end of described oxidant channel is provided with the oxidant vessel for the dress oxidant, the other end is divided into two-way, pass through respectively the two ends of the first electromagnetically operated valve and the 4th electromagnetically operated valve connecting fuel battery pile, be provided with the first air-water separator between described the first electromagnetically operated valve and described fuel cell pile, with described first air-water separator of bypass pipe connection of the 3rd electromagnetically operated valve; Be provided with the second air-water separator between described the 4th electromagnetically operated valve and described fuel cell pile, with described second air-water separator of bypass pipe connection of the second electromagnetically operated valve; Be provided with successively pressure sensor and import electromagnetically operated valve on described oxidant channel, also be provided with temperature sensor on described fuel cell pile; Also comprise a controller, be connected with described electromagnetically operated valve, pressure sensor, import electromagnetically operated valve and temperature sensor respectively.
the present invention also provides a kind of self-loopa fuel cell system, comprise the fuel cell pile that is provided with fuel channel and oxidant channel, described fuel cell pile is two-way to be advanced, exhaust, one end of described oxidant channel is provided with the container for the dress oxidant, the other end is divided into two-way, pass through respectively the two ends of the first electromagnetically operated valve and the 4th electromagnetically operated valve connecting fuel battery pile, be connected the bypass pipe with the 3rd electromagnetically operated valve between described the first electromagnetically operated valve and described fuel cell pile, be connected the bypass pipe with the second electromagnetically operated valve between described the 4th electromagnetically operated valve and described fuel cell pile, receiving fluids or gas in described oxidant vessel, described oxidant vessel carries pressure.
The present invention also provides a kind of self-loopa Fuel Cell Control method, adopts above-mentionedly not with the self-circulation fuel cell control system of air-water separator, comprises the following steps:
(1) described the first electromagnetically operated valve is opened, and described the second electromagnetically operated valve, the 3rd electromagnetically operated valve and the 4th electromagnetically operated valve keep closing, described fuel cell pile work;
(2) keep described the first electromagnetically operated valve to open, keep described the 3rd electromagnetically operated valve and the 4th closed electromagnetic valve, open described the second electromagnetically operated valve, described fuel cell pile draining;
(3) keep described the 3rd closed electromagnetic valve, close described the first electromagnetically operated valve and the second electromagnetically operated valve, open described the 4th electromagnetically operated valve, the reverse air inlet of described fuel cell pile works on;
(4) keep described the first electromagnetically operated valve and the second closed electromagnetic valve, described the 4th electromagnetically operated valve is opened, and opens described the 3rd electromagnetically operated valve, described fuel cell pile reverse drainage.
The present invention also provides a kind of self-loopa Fuel Cell Control method, adopts above-mentioned self-circulation fuel cell control system with air-water separator, comprises the following steps:
(1) described the first electromagnetically operated valve is opened, and described the second electromagnetically operated valve, the 3rd electromagnetically operated valve and the 4th electromagnetically operated valve keep closing, described fuel cell pile work, and the air water of discharge separates in the first air-water separator;
(2) keep the first electromagnetically operated valve to open, keep described the 3rd electromagnetically operated valve and the 4th closed electromagnetic valve, open described the second electromagnetically operated valve, described the first air-water separator draining;
(3) keep described the 3rd closed electromagnetic valve, close described the first electromagnetically operated valve and the second electromagnetically operated valve, open described the 4th electromagnetically operated valve, the reverse air inlet of described fuel cell pile works on, and the air water of discharge separates in the second air-water separator;
(4) keep described the first electromagnetically operated valve and the second closed electromagnetic valve, described the 4th electromagnetically operated valve is opened, and opens described the 3rd electromagnetically operated valve, described the second air-water separator draining.
Owing to having adopted above-mentioned technology, compared with prior art, a plurality of or whole during the application has the following advantages:
1, need not to oxidant filter, humidification or heating.
2, due to the oxidant that adopts the container dress as oxidant, its oxidant concentration is high, when electrochemical reaction, need not very high operating pressure in fuel cell, can guarantee the quantity delivered of oxidant.
3, due to the loop structure that adopts relative closure, in high pollution and/or the thin environment of oxidant, can work constantly.
4, the present invention need not to reclaim the inside gas vapour cycle that pump or supercharging circulating pump just can be realized fuel cell, and simple in structure, operation is convenient, and with low cost.
Further illustrate the application below in conjunction with drawings and Examples.
Description of drawings
Fig. 1 is that the module of the fuel cell system of prior art connects block diagram;
Fig. 2 is that the module of the self-circulation fuel cell control system in embodiment 1 connects block diagram;
Fig. 3 is that the module of the self-circulation fuel cell control system in embodiment 2 connects block diagram;
Fig. 4 is that the module of the self-circulation fuel cell control system in embodiment 3 connects block diagram;
Fig. 5 is that the module of the self-circulation fuel cell control system in embodiment 4,5 connects block diagram;
Fig. 6 is a kind of flow chart of self-loopa Fuel Cell Control method of the present invention;
Fig. 7 is the another kind of flow chart of self-loopa Fuel Cell Control method of the present invention;
Fig. 8 is the square wave figure of flow process control signal in embodiment;
Fig. 9 is the pressure change figure at the fuel cell pile two ends in embodiment.
Reference numeral
1 first electromagnetically operated valve 11 first electromagnetically operated valves
2 second electromagnetically operated valve 12 second electromagnetically operated valves
3 the 3rd electromagnetically operated valve 13 the 3rd electromagnetically operated valves
4 the 4th electromagnetically operated valve 14 the 4th electromagnetically operated valves
5 first air-water separator 15 first air-water separators
6 second air-water separator 16 second air-water separators
7 import electromagnetically operated valve 17 import electromagnetically operated valves
8 pressure regulating valve 18 pressure regulating valves
9 break valve 19 break valves
10 pressure sensor 20 pressure sensors
31 fuel cell piles
41 oxidant vessel
42 hydrogen tank
Embodiment
Introduce five specific embodiments of the present invention below by Fig. 2 to 9.
As shown in Figure 1, a kind of ring fuel cell system, the fuel cell pile 103 that comprises fuel channel and oxidant channel, described fuel channel is provided with the oxidant vessel 101 for the dress oxidant, be connected with the first blender 104 on the oxidant channel of described oxidant vessel 101 and fuel cell pile 103 arrival ends, be provided with successively air-water separator 105 and the first supercharging circulating pump 106 on the oxidant channel of described fuel cell pile 103 ports of export, the output of described the first supercharging circulating pump 106 is connected with described the first blender 104 pipelines.Wherein fuel cell pile 103 ports of export are interrupted draining to air-water separator 105, and water is excluded, and gas vapour sucks the first blender 104 by the first supercharging circulating pump 106, after oxidant mixes, enters fuel cell pile 103.This scheme is relatively reliable, but still needs a high performance supercharging circulating pump, and cost is higher.
As shown in Figure 2, a kind of self-loopa fuel cell system of the present invention comprises the fuel cell pile 31 that is provided with fuel channel and oxidant channel.The two-way inlet and outlet of described fuel cell pile 31, one end of described oxidant channel is provided with the oxidant vessel 41 for the dress oxidant, the other end is divided into two-way, pass through respectively the two ends of the first electromagnetically operated valve 1 and the 4th electromagnetically operated valve 4 connecting fuel battery piles 31, be connected the bypass pipe with the 3rd electromagnetically operated valve 3 between described the first electromagnetically operated valve 1 and described fuel cell pile 31, be connected the bypass pipe with the second electromagnetically operated valve 2 between described the 4th electromagnetically operated valve 4 and described fuel cell pile 31.Be connected with break valve 9, pressure regulating valve 8, pressure sensor 10, import electromagnetically operated valve 7 on described oxidant channel in turn.Under the pressure change of pressure that oxidant vessel 41 provides and chemical reaction itself, by controlling these electromagnetically operated valves, the gas vapour that fuel cell pack 31 is discharged is back to after draining in fuel cell pack 31, has reduced the loss of heat and unreacting gas.
Wherein, described oxidant vessel 41 can be can bearing certain pressure equipment, as oxidant bottle, oxidant tank etc., it is in-built the higher gas of oxidant concentration, it can be also the pure zirconia agent, and the form of the oxidant in oxidant vessel 41 can liquefy, and described oxidant vessel 41 can be that conveyance conduit by long distance is connected with described fuel cell pack 31, i.e. described fuel cell pack 31 and described oxidant vessel 41 distance relatively far apart.Described oxidant vessel 41 can also be simultaneously provides oxidant for other the place that needs oxidant.In addition, described oxidant vessel 41 itself can also comprise the equipment that can make oxidant.Described oxidant vessel 41 is interior can receiving fluids or gas, and described oxidant vessel 41 carries pressure, and the concentration of this liquid or the gas scope that can change.
As shown in Figure 6, a kind of self-loopa Fuel Cell Control method of the present invention adopts above-mentioned self-circulation fuel cell control system, comprises the following steps:
(1) described the first electromagnetically operated valve 1 is opened, described the second electromagnetically operated valve 2, the 3rd electromagnetically operated valve 3 and the 4th electromagnetically operated valve 4 keep closing, 31 work of described fuel cell pile, through the oxidant of fuel cell pile 31 partly with fuel generation electrochemical reaction, produce electric energy, water and heat.
(2) keep described the first electromagnetically operated valve 1 to open, keep described the 3rd electromagnetically operated valve 3 and the 4th electromagnetically operated valve 4 to close, open described the second electromagnetically operated valve 2, described fuel cell pile 31 is discharged most of moisture, but and discharge section gas, in this portion gas, institute's oxygen concentration is low.
(3) keep described the 3rd electromagnetically operated valve 3 to close, close described the first electromagnetically operated valve 1 and the second electromagnetically operated valve 2, open described the 4th electromagnetically operated valve 4, the reverse air inlet of described fuel cell pile 31, work on, through the oxidant of fuel cell pile 31 partly with fuel generation electrochemical reaction, produce electric energy, water and heat.
(4) keep described the first electromagnetically operated valve 1 and the second electromagnetically operated valve 2 to close, described the 4th electromagnetically operated valve 4 is opened, and opens described the 3rd electromagnetically operated valve 3, and described fuel cell pile 31 is oppositely discharged most of moisture, but and discharge section gas, in this portion gas, institute's oxygen concentration is low.
As shown in Figure 8, suppose in actual use, controller is controlled the digital circuit square wave figure of six electromagnetically operated valve open and-shut modes of fuel channel or oxidant channel.1 expression valve opening, 0 expression valve closing.Several signals of telecommunication of step (1) are (1,0,0,0); Several signals of telecommunication of step (2) are (1,1,0,0); Several signals of telecommunication of step (3) are (0,0,0,1); Several signals of telecommunication of step (4) are (0,0,1,1).
As shown in Fig. 2 and 9, the arrival end of establishing fuel cell pile 31 is the A point, and the port of export is the B point, and in the process of the step (4) of step (1), the pressure change relation that its A point and B are ordered represents by three straight lines in Fig. 4.In step (1), the pressure that A point and B are ordered equates, fuel cell pile work produces water; In step (2), pressure that B is ordered descends, and A presses powerful pressure in ordering with B, fuel cell pile draining; In step (3), the pressure that B is ordered rises, and the pressure that A point and B are ordered is equal, and the reverse air inlet of fuel cell pile works on, and produces water; In step (4), pressure that A is ordered descends, and B presses powerful pressure in ordering with A, fuel cell pile reverse drainage.
As shown in Figure 3, a kind of self-loopa fuel cell system of the present invention comprises the fuel cell pile 31 that is provided with fuel channel and oxidant channel.The two-way inlet and outlet of described fuel cell pile 31, one end of described oxidant channel is provided with the oxidant vessel 41 for the dress oxidant, the other end is divided into two-way, pass through respectively the two ends of the first electromagnetically operated valve 1 and the 4th electromagnetically operated valve 4 connecting fuel battery piles 31, be connected the bypass pipe with the 3rd electromagnetically operated valve 3 between described the first electromagnetically operated valve 1 and described fuel cell pile 31, be connected the bypass pipe with the second electromagnetically operated valve 2 between described the 4th electromagnetically operated valve 4 and described fuel cell pile 31.Be connected with break valve 9, pressure regulating valve 8, pressure sensor 10, import electromagnetically operated valve 7 on described oxidant channel in turn.One end of described fuel channel is provided with the hydrogen tank 42 for dress hydrogen, the other end is divided into two-way, pass through respectively the two ends of the first electromagnetically operated valve 11 and the 4th electromagnetically operated valve 14 connecting fuel battery piles 31, be connected the bypass pipe with the 3rd electromagnetically operated valve 13 between described the first electromagnetically operated valve 11 and described fuel cell pile 31, be connected the bypass pipe with the second electromagnetically operated valve 12 between described the 4th electromagnetically operated valve 14 and described fuel cell pile 31.Be connected with break valve 19, pressure regulating valve 18, pressure sensor 20, import electromagnetically operated valve 17 on described fuel channel in turn.In addition, described oxidant vessel 41 itself can also comprise the equipment that can make oxidant.Described oxidant vessel 41 is interior can receiving fluids or gas, and described oxidant vessel 41 carries pressure, and the concentration of this liquid or the gas scope that can change.
Device in the present embodiment has increased identical pipeline framework to fuel channel, its each component feature and working condition etc. all with embodiment 1 in consistent.
as shown in Figure 4, a kind of self-loopa fuel cell system of the present invention, comprise the fuel cell pile 31 that is provided with fuel channel and oxidant channel, described fuel cell pile 31 is two-way to be advanced, exhaust, one end of described oxidant channel is provided with the oxidant vessel 41 for the dress oxidant, the other end is divided into two-way, pass through respectively the two ends of the first electromagnetically operated valve 1 and the 4th electromagnetically operated valve 4 connecting fuel battery piles 31, be provided with the first air-water separator 5 between described the first electromagnetically operated valve 1 and described fuel cell pile 31, bypass pipe with the 3rd electromagnetically operated valve 3 connects described the first air-water separator 5, be provided with the second air-water separator 6 between described the 4th electromagnetically operated valve 4 and described fuel cell pile 31, bypass pipe with the second electromagnetically operated valve 2 connects described the second air-water separator 6.Be connected with break valve 9, pressure regulating valve 8, pressure sensor 10, import electromagnetically operated valve 7 on described oxidant channel in turn.Under the pressure change of pressure that oxidant vessel 41 provides and chemical reaction itself, by controlling these electromagnetically operated valves, the gas vapour that fuel cell pack 31 is discharged is back to after draining in fuel cell pack 31, has reduced the loss of heat and unreacting gas.
Wherein, described oxidant vessel 41 can be can bearing certain pressure equipment, as oxidant bottle, oxidant tank etc., it is in-built the higher gas of oxidant concentration, it can be also the pure zirconia agent, and the form of the oxidant in oxidant vessel 41 can liquefy, and described oxidant vessel 41 can be that conveyance conduit by long distance is connected with described fuel cell pack 31, i.e. described fuel cell pack 31 and described oxidant vessel 41 distance relatively far apart.Described oxidant vessel 41 can also be simultaneously provides oxidant for other the place that needs oxidant.In addition, described oxidant vessel 41 itself can also comprise the equipment that can make oxidant.In addition, described oxidant vessel 41 itself can also comprise the equipment that can make oxidant.Described oxidant vessel 41 is interior can receiving fluids or gas, and described oxidant vessel 41 carries pressure, and the concentration of this liquid or the gas scope that can change.
Device in the present embodiment has increased the first air-water separator 5 and the second air-water separator 6 to oxidant channel, unreacting gas, water and heat that fuel cell pack 31 is discharged carry out buffer storage, when making reverse air inlet, unreacting gas, water and the heat of this part can be brought back in fuel cell pack 31.All the other each component features and working condition etc. all with embodiment 1 in consistent.
As shown in Figure 7, a kind of self-loopa Fuel Cell Control method of the present invention adopts above-mentioned self-circulation fuel cell control system, comprises the following steps:
(1) described the first electromagnetically operated valve is opened, described the second electromagnetically operated valve, the 3rd electromagnetically operated valve and the 4th electromagnetically operated valve keep closing, described fuel cell pile work, through the oxidant of fuel cell pile 31 partly with fuel generation electrochemical reaction, produce electric energy, water and heat, the air water of discharge separates in the first air-water separator.
(2) keep described the first electromagnetically operated valve to open, keep described the 3rd electromagnetically operated valve and the 4th closed electromagnetic valve, open described the second electromagnetically operated valve, described fuel cell pile is discharged most of moisture, but and discharge section gas, in this portion gas, institute's oxygen concentration is low.
(3) keep described the 3rd closed electromagnetic valve, close described the first electromagnetically operated valve and the second electromagnetically operated valve, open described the 4th electromagnetically operated valve, the reverse air inlet of described fuel cell pile, work on, through the oxidant of fuel cell pile 31 partly with fuel generation electrochemical reaction, produce electric energy, water and heat, the air water of discharge separates in the second air-water separator;
(4) keep described the first electromagnetically operated valve and the second closed electromagnetic valve, described the 4th electromagnetically operated valve is opened, and opens described the 3rd electromagnetically operated valve, and described fuel cell pile is oppositely discharged most of moisture, but and discharge section gas, in this portion gas, institute's oxygen concentration is low.
as shown in Figure 5, a kind of self-loopa fuel cell system of the present invention, comprise the fuel cell pile 31 that is provided with fuel channel and oxidant channel, described fuel cell pile 31 is two-way to be advanced, exhaust, one end of described oxidant channel is provided with the oxidant vessel 41 for the dress oxidant, the other end is divided into two-way, pass through respectively the two ends of the first electromagnetically operated valve 1 and the 4th electromagnetically operated valve 4 connecting fuel battery piles 31, be provided with the first air-water separator 5 between described the first electromagnetically operated valve 1 and described fuel cell pile 31, bypass pipe with the 3rd electromagnetically operated valve 3 connects described the first air-water separator 5, be provided with the second air-water separator 6 between described the 4th electromagnetically operated valve 4 and described fuel cell pile 31, bypass pipe with the second electromagnetically operated valve 2 connects described the second air-water separator 6.Be connected with break valve 9, pressure regulating valve 8, pressure sensor 10, import electromagnetically operated valve 7 on described oxidant channel in turn.In addition, described oxidant vessel 41 itself can also comprise the equipment that can make oxidant.Described oxidant vessel 41 is interior can receiving fluids or gas, and described oxidant vessel 41 carries pressure, and the concentration of this liquid or the gas scope that can change.
One end of described fuel channel is provided with the hydrogen tank 42 for dress hydrogen, the other end is divided into two-way, pass through respectively the two ends of the first electromagnetically operated valve 11 and the 4th electromagnetically operated valve 14 connecting fuel battery piles 31, be provided with the first air-water separator 15 between described the first electromagnetically operated valve 11 and described fuel cell pile 31, with described first air-water separator 15 of bypass pipe connection of the 3rd electromagnetically operated valve 13; Be provided with the second air-water separator 16 between described the 4th electromagnetically operated valve 14 and described fuel cell pile 31, with described second air-water separator 16 of bypass pipe connection of the second electromagnetically operated valve 12.Be connected with break valve 19, pressure regulating valve 18, pressure sensor 20, import electromagnetically operated valve 17 on described fuel channel in turn.
The present embodiment combines the scheme of embodiment 2 and embodiment 3, this device has increased the first air-water separator 5 and the second air-water separator 6 to oxidant channel, blast tube the first air-water separator 15 and the second air-water separator 16 have been increased, unreacting gas, water and heat that fuel cell pack 31 is discharged carry out buffer storage, when making reverse air inlet, unreacting gas, water and the heat of this part all can be able to be brought back in fuel cell pack 31.All the other each component features and working condition etc. all with embodiment 1 in consistent.
As shown in Figure 5, a kind of self-circulation fuel cell control system of the present invention comprises the fuel cell pile 31 that is provided with fuel channel and oxidant channel, the two-way inlet and outlet of described fuel cell pile 31; One end of described oxidant channel is provided with the oxidant vessel 41 for the dress oxidant, the other end is divided into two-way, pass through respectively the two ends of the first electromagnetically operated valve 1 and the 4th electromagnetically operated valve 4 connecting fuel battery piles 31, be provided with the first air-water separator 5 between described the first electromagnetically operated valve 1 and described fuel cell pile 31, with described first air-water separator 5 of bypass pipe connection of the 3rd electromagnetically operated valve 3; Be provided with the second air-water separator 6 between described the 4th electromagnetically operated valve 4 and described fuel cell pile 31, with described second air-water separator 6 of bypass pipe connection of the second electromagnetically operated valve 2; Be provided with successively pressure sensor 10 and import electromagnetically operated valve 7 on described oxidant channel, also be provided with temperature sensor on described fuel cell pile 31; Also comprise a controller (not indicating in figure), be connected with described the first electromagnetically operated valve 1, the second electromagnetically operated valve 2, the 3rd electromagnetically operated valve 3, the 4th electromagnetically operated valve 4, pressure sensor 10, import electromagnetically operated valve 7 and temperature sensor respectively.On described oxidant channel, oxidant vessel 41 is to being provided with successively break valve 9 and the pressure regulating valve 8 that is connected with controller between pressure sensor 10.In addition, described oxidant vessel 41 itself can also comprise the equipment that can make oxidant.Described oxidant vessel 41 is interior can receiving fluids or gas, and described oxidant vessel 41 carries pressure, and the concentration of this liquid or the gas scope that can change.
One end of described fuel channel is provided with the hydrogen tank 42 for dress hydrogen, the other end is divided into two-way, pass through respectively the two ends of the first electromagnetically operated valve 11 and the 4th electromagnetically operated valve 14 connecting fuel battery piles 31, be provided with the first air-water separator 15 between described the first electromagnetically operated valve 11 and described fuel cell pile 31, with described first air-water separator 15 of bypass pipe connection of the 3rd electromagnetically operated valve 13; Be provided with the second air-water separator 16 between described the 4th electromagnetically operated valve 14 and described fuel cell pile 31, with described second air-water separator 16 of bypass pipe connection of the second electromagnetically operated valve 12; Be provided with successively the pressure sensor 20 and the import electromagnetically operated valve 17 that connect described controller on described fuel channel, described electromagnetically operated valve 11,12,13,14 connects respectively described controller.On described fuel channel, hydrogen tank 42 is to being provided with successively break valve 19 and the pressure regulating valve 18 that is connected with controller between pressure sensor 20.
Device in the present embodiment has mainly increased control unit on the basis of embodiment 4, all electromagnetically operated valves are accurately controlled, unreacting gas, water and heat that fuel cell pack 31 is discharged carry out buffer storage, when making reverse air inlet, unreacting gas, water and the heat of this part can be brought back in fuel cell pack 31.All the other each component features and working condition etc. all with embodiment 1 in consistent.
In summary, owing to having adopted above-mentioned technology, a plurality of or whole during the application has the following advantages:
1, need not to oxidant filter, humidification or heating.
2, due to the oxidant that adopts the container dress as oxidant, its oxidant concentration is high, when electrochemical reaction, need not very high operating pressure in fuel cell, can guarantee the quantity delivered of oxidant.
3, due to the loop structure that adopts relative closure, in high pollution and/or the thin environment of oxidant, can work constantly.
4, the present invention need not to reclaim the inside gas vapour cycle that pump or supercharging circulating pump just can be realized fuel cell, and simple in structure, operation is convenient, and with low cost.
Above-described embodiment only is used for illustrating technological thought of the present invention and characteristics, its purpose is to make those skilled in the art can understand content of the present invention and implement according to this, can not only limit the scope of the claims of the present invention with the present embodiment, be all equal variation or modifications of doing according to disclosed spirit, still drop in the scope of the claims of the present invention.
Claims (5)
1. self-loopa fuel cell system, comprise the fuel cell pile (31) that is provided with fuel channel and oxidant channel, it is characterized in that: described fuel cell pile (31) is two-way to be advanced, exhaust, one end of described oxidant channel is provided with the container (41) for the dress oxidant, the other end is divided into two-way, pass through respectively the two ends of the first electromagnetically operated valve (1) and the 4th electromagnetically operated valve (4) connecting fuel battery pile (31), be connected the bypass pipe with the 3rd electromagnetically operated valve (3) between described the first electromagnetically operated valve (1) and described fuel cell pile (31), be connected the bypass pipe with the second electromagnetically operated valve (2) between described the 4th electromagnetically operated valve (4) and described fuel cell pile (31), be connected with break valve (9) on described oxidant channel in turn, pressure regulating valve (8), pressure sensor (10), import electromagnetically operated valve (7).
2. self-loopa fuel cell system as claimed in claim 1, it is characterized in that: an end of described fuel channel is provided with the hydrogen tank (42) for dress hydrogen, the other end is divided into two-way, pass through respectively the two ends of the first electromagnetically operated valve (11) and the 4th electromagnetically operated valve (14) connecting fuel battery pile (31), be connected the bypass pipe with the 3rd electromagnetically operated valve (13) between described the first electromagnetically operated valve (11) and described fuel cell pile (31), be connected the bypass pipe with the second electromagnetically operated valve (12) between described the 4th electromagnetically operated valve (14) and described fuel cell pile (31).
3. self-loopa fuel cell system as claimed in claim 2, is characterized in that: be connected with break valve (19), pressure regulating valve (18), pressure sensor (20), import electromagnetically operated valve (17) on described fuel channel in turn.
4. self-loopa fuel cell system, comprise the fuel cell pile (31) that is provided with fuel channel and oxidant channel, it is characterized in that: described fuel cell pile (31) is two-way to be advanced, exhaust, one end of described oxidant channel is provided with the container (41) for the dress oxidant, the other end is divided into two-way, pass through respectively the two ends of the first electromagnetically operated valve (1) and the 4th electromagnetically operated valve (4) connecting fuel battery pile (31), be connected the bypass pipe with the 3rd electromagnetically operated valve (3) between described the first electromagnetically operated valve (1) and described fuel cell pile (31), be connected the bypass pipe with the second electromagnetically operated valve (2) between described the 4th electromagnetically operated valve (4) and described fuel cell pile (31), the interior receiving fluids of described oxidant vessel (41) or gas, described oxidant vessel (41) carries pressure.
5. self-loopa Fuel Cell Control method, it is characterized in that: adopt self-loopa fuel cell system as described in claim 1 or 4, comprise the following steps: (1) described first electromagnetically operated valve is opened, described the second electromagnetically operated valve, the 3rd electromagnetically operated valve and the 4th electromagnetically operated valve keep closing, described fuel cell pile work; (2) keep described the first electromagnetically operated valve to open, keep described the 3rd electromagnetically operated valve and the 4th closed electromagnetic valve, open described the second electromagnetically operated valve, described fuel cell pile draining; (3) keep described the 3rd closed electromagnetic valve, close described the first electromagnetically operated valve and the second electromagnetically operated valve, open described the 4th electromagnetically operated valve, the reverse air inlet of described fuel cell pile works on; (4) keep described the first electromagnetically operated valve and the second closed electromagnetic valve, described the 4th electromagnetically operated valve is opened, and opens described the 3rd electromagnetically operated valve, described fuel cell pile reverse drainage.
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| CN2010102454123A CN101989665B (en) | 2010-08-03 | 2010-08-03 | Self-circulation fuel cell control system and method thereof |
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| CN2010102454123A CN101989665B (en) | 2010-08-03 | 2010-08-03 | Self-circulation fuel cell control system and method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102035008B (en) * | 2010-11-16 | 2014-08-13 | 上海恒劲动力科技有限公司 | Fuel battery system using vessel-contained oxygen gas as oxidizer and control system thereof |
| CN104064789B (en) * | 2014-06-26 | 2016-10-05 | 弗尔赛（上海）能源科技有限公司 | Fuel cell supply circulating system structure |
| CN104409750B (en) * | 2014-10-28 | 2016-10-05 | 航天新长征电动汽车技术有限公司 | A kind of fuel cell tail gas blood circulation |
| CN108539222A (en) * | 2018-06-06 | 2018-09-14 | 同济大学 | A kind of on-vehicle fuel multiple module paralleling hydrogen gas circulating system and its control method |
| CN109273741A (en) * | 2018-11-01 | 2019-01-25 | 上海重塑能源科技有限公司 | The hydrogen of fuel cell system is separated from water device and its working method |
| CN112993326B (en) * | 2019-12-13 | 2022-08-19 | 中车时代电动汽车股份有限公司 | Fuel cell and proton exchange membrane protection method |
| CN116646556B (en) * | 2023-06-08 | 2024-04-30 | 昆明理工大学 | Air inlet and exhaust system of air-cooled cathode open type proton exchange membrane fuel cell and control method |
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| CN101170186A (en) * | 2006-10-25 | 2008-04-30 | 新源动力股份有限公司 | An adjusting system for air supply of fuel battery system |
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Effective date of registration: 20201223 Address after: 266706 Tonghe Street Office, Pingdu City, Qingdao City, Shandong Province, north of the middle end of Tongda Road Patentee after: Qingdao Hanhe hydrogen energy equipment Technology Co.,Ltd. Address before: Building 1, No. 1388, Zhangdong Road, Zhangjiang hi tech park, Shanghai, 201203 Patentee before: Shanghai Everpower Technologies Ltd. |
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