CN1770534A - Fuel cell with hydrogen gas air temperature and humidity adjusting device - Google Patents
Fuel cell with hydrogen gas air temperature and humidity adjusting device Download PDFInfo
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- CN1770534A CN1770534A CNA2004100677102A CN200410067710A CN1770534A CN 1770534 A CN1770534 A CN 1770534A CN A2004100677102 A CNA2004100677102 A CN A2004100677102A CN 200410067710 A CN200410067710 A CN 200410067710A CN 1770534 A CN1770534 A CN 1770534A
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- hydrogen
- air
- fuel cell
- cooling fluid
- humidity
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- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 164
- 239000000446 fuel Substances 0.000 title claims abstract description 97
- 239000001257 hydrogen Substances 0.000 claims abstract description 161
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 161
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 38
- 230000006835 compression Effects 0.000 claims abstract description 5
- 238000007906 compression Methods 0.000 claims abstract description 5
- 238000001816 cooling Methods 0.000 claims abstract description 5
- 239000012809 cooling fluid Substances 0.000 claims description 55
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 239000007789 gas Substances 0.000 abstract description 10
- 238000001914 filtration Methods 0.000 abstract description 3
- 230000017525 heat dissipation Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 3
- 239000012528 membrane Substances 0.000 description 37
- 239000007800 oxidant agent Substances 0.000 description 11
- 230000001590 oxidative effect Effects 0.000 description 11
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 7
- 238000006243 chemical reaction Methods 0.000 description 7
- 239000001301 oxygen Substances 0.000 description 7
- 229910052760 oxygen Inorganic materials 0.000 description 7
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 6
- 238000003487 electrochemical reaction Methods 0.000 description 6
- 150000002500 ions Chemical class 0.000 description 6
- 239000003054 catalyst Substances 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- 150000002431 hydrogen Chemical class 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000010248 power generation Methods 0.000 description 4
- 239000008213 purified water Substances 0.000 description 4
- 239000007795 chemical reaction product Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000002737 fuel gas Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000008358 core component Substances 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- -1 hydrogen cations Chemical class 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000013508 migration Methods 0.000 description 2
- 230000005012 migration Effects 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 229920000557 Nafion® Polymers 0.000 description 1
- 239000011358 absorbing material Substances 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 239000000306 component Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000003502 gasoline Substances 0.000 description 1
- 239000007770 graphite material Substances 0.000 description 1
- 235000003642 hunger Nutrition 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000002407 reforming Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000037351 starvation Effects 0.000 description 1
Images
Classifications
-
- 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
Abstract
This invention relates to one hydrogen air temperature and humidity adjusting device fuel battery, which comprises the following parts: fuel battery set, hydrogen storage device, hydrogen release valve, hydrogen humidity adding device, air filtering device, air compression supply device, air humidity adding device, hydrogen water to gas isolator, hydrogen recycle pump, air water to gas isolator, water box, cooling recycle pump, heat dissipation pump, hydrogen temperature and humidity adjusting device. Comparing with current technique, the invention adjusts the temperature and humidity before entering fuel battery set.
Description
Technical Field
The invention relates to a fuel cell, in particular to a fuel cell with a hydrogen air temperature and humidity adjusting device.
Background
An electrochemical fuel cell is a device capable of converting hydrogen and an oxidant into electrical energy and reaction products. The inner core component of the device is a Membrane Electrode (MEA), which is composed of a proton exchange Membrane and two porous conductive materials sandwiched between two surfaces of the Membrane, such as carbon paper. The membrane contains a uniform and finely dispersed catalyst, such as a platinum metal catalyst, for initiating an electrochemical reaction at the interface between the membrane and the carbon paper. The electrons generated in the electrochemical reaction process can be led out by conductive objects at two sides of the membrane electrode through an external circuit to form a current loop.
At the anode end of the membrane electrode, fuel can permeate through a porous diffusion material (carbon paper) and undergo electrochemical reaction on the surface of a catalyst to lose electrons to form positive ions, and the positive ions can pass through a proton exchange membrane through migration to reach the cathode end at the other end of the membrane electrode. At the cathode end of the membrane electrode, a gas containing an oxidant (e.g., oxygen), such as air, forms negative ions by permeating through a porous diffusion material (carbon paper) and electrochemically reacting on the surface of the catalyst to give electrons. The anions formed at the cathode end react with the positive ions transferred from the anode end to form reaction products.
In a pem fuel cell using hydrogen as the fuel and oxygen-containing air as the oxidant(or pure oxygen as the oxidant), the catalytic electrochemical reaction of the fuel hydrogen in the anode region produces hydrogen cations (or protons). The proton exchange membrane assists the migration of positive hydrogen ions from the anode region to the cathode region. In addition, the proton exchange membrane separates the hydrogen-containing fuel gas stream from the oxygen-containing gas stream so that they do not mix with each other to cause explosive reactions.
In the cathode region, oxygen gains electrons on the catalyst surface, forming negative ions, which react with the hydrogen positive ions transported from the anode region to produce water as a reaction product. In a proton exchange membrane fuel cell using hydrogen, air (oxygen), the anode reaction and the cathode reaction can be expressed by the following equations:
and (3) anode reaction:
and (3) cathode reaction:
in a typical pem fuel cell, a Membrane Electrode (MEA) is generally placed between two conductive plates, and the surface of each guide plate in contact with the MEA is die-cast, stamped, or mechanically milled to form at least one or more channels. The flow guide polar plates can be polar plates made of metal materials or polar plates made of graphite materials. The fluid pore channels and the diversion trenches on the diversion polar plates respectively guide the fuel and the oxidant into the anode area and the cathode area on two sides of the membrane electrode. In the structure of a single proton exchange membrane fuel cell, only one membrane electrode is present, and a guide plate of anode fuel and a guide plate of cathode oxidant are respectively arranged on two sides of the membrane electrode. The guide plates are used as current collector plates and mechanical supports at two sides of the membrane electrode, and the guide grooves on the guide plates are also used as channels for fuel and oxidant to enter the surfaces of the anode and the cathode and as channels for taking away water generated in the operation process of the fuel cell.
In order to increase the total power of the whole proton exchange membrane fuel cell, two or more single cells can be connected in series to form a battery pack in a straight-stacked manner or connected in a flat-laid manner to form a battery pack. In the direct-stacking and serial-type battery pack, two surfaces of one polar plate can be provided with flow guide grooves, wherein one surface can be used as an anode flow guide surface of one membrane electrode, and the other surface can be used as a cathode flow guide surface of another adjacent membrane electrode, and the polar plate is called a bipolar plate. A series of cells are connected together in a manner to form a battery pack. The battery pack is generally fastened together into one body by a front end plate, a rear end plate and a tie rod.
A typical battery pack generally includes: (1) the fuel (such as hydrogen, methanol or hydrogen-rich gas obtained by reforming methanol, natural gas and gasoline) and the oxidant (mainly oxygen or air) are uniformly distributed in the diversion trenches of the anode surface and the cathode surface; (2) the inlet and outlet of cooling fluid (such as water) and the flow guide channel uniformly distribute the cooling fluid into the cooling channels in each battery pack, and the heat generated by the electrochemical exothermic reaction of hydrogen and oxygen in the fuel cell is absorbed and taken out of the battery pack for heat dissipation; (3) the outlets of the fuel gas and the oxidant gas and the corresponding flow guide channels can carry out liquid and vapor water generated in the fuel cell when the fuel gas and the oxidant gas are discharged. Typically, all fuel, oxidant, and cooling fluid inlets and outlets are provided in one or both end plates of the fuel cell stack.
The proton exchange membrane fuel cell can be used as a power system of vehicles, ships and other vehicles, and can also be used as a movable and fixed power generation device.
When the proton exchange membrane fuel cell is used as a vehicle power system, a ship power system or a mobile and fixed power station, the proton exchange membrane fuel cell must comprise a cell stack, a fuel hydrogen supply system, an air supply subsystem, a cooling and heat dissipation subsystem, an automatic control part and an electric energy output part.
Fig. 1 shows a typical fuel cell power generation system, in fig. 1, 1 is a fuel cell stack, 2 is a hydrogen storage bottle or other hydrogen storage device, 3 is a pressure reducing valve, 4 is an air filtering device, 5 is an air compression supply device, 6 is a hydrogen water-vapor separator, 6' is an air water-vapor separator, 7 is a water tank, 8 is a cooling fluid circulation pump, 9 is a radiator, 10 is a hydrogen circulation pump, 11 is a hydrogen humidifying device, and 12 is an air humidifying device.
According to the integration and operation principle of the current typical fuel cell power generation system, hydrogen and air which are conveyed to a fuel cell stack must be subjected to pressure stabilization and pass through humidifying devices (11, 12) to become wet air and hydrogen reaching certain relative humidity and temperature, and then enter the fuel cell stack to generate electrochemical reaction. Otherwise, when dry or insufficiently humidified air or hydrogen is delivered to the fuel cell stack, the excess air or hydrogen can cause water loss of a proton exchange membrane in a membrane electrode which is a core component in the fuel cell stack, and the water loss of the proton exchange membrane can cause the internal resistance of the fuel cell to be increased rapidly and the operation performance to be reduced rapidly.
The humidification devices currently applied to proton exchange membrane fuel cells mainly comprise the following components:
1. before dry air and fuel hydrogen enter the fuel cell, the dry air and the fuel hydrogen are in direct contact with purified water in a humidifying device and collide with each other to enable water molecules and air molecules to be in a uniformly mixed gaseous state, and when the air and the water molecules enter the fuel cell, the air and the water molecules reach certain relative humidity.
2. Before the dry air or fuel hydrogen and the purified water enter the fuel cell, the dry air or fuel hydrogen and the purified water are not in direct contact in the humidifying device, but are separated by a layer of membrane which can allow water molecules to freely penetrate but not allow gas molecules to penetrate, when the dry air or the hydrogen flows through one side of the membrane and the purified water flows through the other side of the membrane, the water molecules can automatically penetrate through the other side of the membrane from one side of the membrane, so that the air molecules and the water molecules are mixed to reach air with certain relative humidity. Such membranes may be proton exchange membranes such as Nafion membranes from dupont, and the like.
3. The patent application number: 02217654.3 discloses a humidifying device (Shanghai Shenli science and technology Co., Ltd.) for exchanging water by using dry air before entering a fuel cell and wet air after exiting the fuel cell, wherein the humidifying device is composed of a rotary inner container, water absorbing materials are filled in the rotary inner container, when the dry air passes through the rotary inner container, water moleculeson the surface of the filling materials in the inner container are taken away, and the wet air and the water pass through the surface of the filling materials in the inner container to adsorb the water molecules again.
However, the existing technical scheme is that the hydrogen and air delivered to the fuel cell stack are humidified and then become wet air with certain relative humidity and temperature, and the hydrogen directly enters the fuel cell stack to generate electrochemical reaction, and has the following technical defects:
1. generally, the above-described humidification apparatus is designed for the operating conditions of the fuel cell in the rated operating state. When the flow rates of the hydrogen and the air delivered to the fuel cell stack are changed greatly, for example, when the flow rates are small, over-humidification is easily caused, a small amount of liquid water is easily condensed from over-humidified hydrogen or air, and the liquid water is respectively brought into a hydrogen guide groove and an air guide groove of the fuel cell by wet hydrogen and wet air. Causing water blockage of the diversion trench. The single cell is in a starvation state of insufficient supply of fuel hydrogen or air due to water blockage in the hydrogen guide groove or water blockage in the air guide groove in a certain single cell, the performance of the single cell is rapidly reduced, and the electrode is caused to be reversely polarized and burnt in serious conditions.
2. The design of the humidifying device is generally that the relative humidity of hydrogen and air can be controlled according to the design target after the rated hydrogen and air flow pass through the humidifying device under the rated working state of the fuel cell, such as the rated working temperature. However, when the external temperature and the external air relative humidity change greatly, the hydrogen and airrelative humidity passing through the humidifying device deviates from the target control value, i.e. the hydrogen and air relative humidity are either too wet or too dry, which causes the instability of the operation performance of the fuel cell.
Disclosure of Invention
The present invention has been made to overcome the above-mentioned drawbacks of the prior art, and an object of the present invention is to provide a fuel cell with a hydrogen air temperature and humidity adjusting device which is advantageous in improving operation stability.
The purpose of the invention can be realized by the following technical scheme: a fuel cell with hydrogen air temperature and humidity regulator includes fuel cell stack, hydrogen storage device, hydrogen pressure reducing valve, hydrogen humidifying device, air filter, air compression supply device, air humidifying device, hydrogen gas water-steam separator, hydrogen circulating pump, air water-steam separator, water tank, cooling fluid circulating pump, radiator, and features that it also includes hydrogen temperature and humidity regulator and air temperature and humidity regulator, which are set on the pipeline behind the hydrogen humidifying device and in front of the hydrogen inlet of the fuel cell stack, and are set on the pipeline behind the air humidifying device and in front of the air inlet of the fuel cell stack.
The hydrogen or air temperature and humidity adjusting device comprises a hydrogen or air inlet pipe, a plurality of hydrogen or air manifolds, a hydrogen or air outlet pipe and a cavity filled with flowing cooling fluid, the heads and the tails of the plurality of hydrogen or air manifolds are respectively communicated with the hydrogen or air inlet pipe and the hydrogen or air outlet pipe, and the plurality of hydrogen or air manifolds are arrangedin the cavity filled with flowing cooling fluid.
The multiple hydrogen or air manifolds are arranged in parallel.
And buffer cavities are respectively arranged at the joints of the hydrogen or air manifolds, the hydrogen or air inlet pipes and the hydrogen or air outlet pipes.
The cavity filled with the flowing cooling fluid is provided with a cooling fluid inlet and a cooling fluid outlet, and the cooling fluid inlet and the cooling fluid outlet are respectively arranged at the upper, lower or left and right opposite angles of the cavity.
The hydrogen or air temperature and humidity adjusting device comprises a hydrogen or air inlet pipe, a hydrogen or air outlet pipe, a cavity through which hydrogen or air passes and a cooling fluid coil pipe, wherein the hydrogen or air inlet pipe and the hydrogen or air outlet pipe are respectively arranged at the left and right or upper and lower diagonal positions of the cavity through which hydrogen or air passes, and the cooling fluid coil pipe is fully distributed in the cavity through which hydrogen or air passes.
The inlet and outlet of the cooling fluid coil are arranged at the upper, lower or left and right opposite angles of the cavity through which the hydrogen or air passes.
The cooling fluid in the cavity or cooling fluid coil filled with the cooling fluid flow is shared with the cooling fluid in the fuel cell cooling system.
The cooling fluid in the cavity or the cooling fluid coil filled with the cooling fluid flow is controlled by the electromagnetic valve.
The invention relates to a hydrogen and air temperature and humidity adjusting device which utilizes fuel cell cooling fluid to heat or cool and adjust the temperature and humidity of hydrogen and air. Compared with the prior art, the invention adjusts the temperature and the humidity before the hydrogen or the air enters the fuel cell stack to take part in the reaction, thereby avoiding the phenomenon of over-humidity or over-drying in the fuel cell stack and improving the operation stability of the fuel cell.
Drawings
FIG. 1 is a schematic diagram of a conventional fuel cell;
FIG. 2 is a schematic structural diagram of a temperature and humidity control device according to the present invention;
FIG. 3 is a schematic structural diagram of another temperature and humidity regulating device of the present invention;
fig. 4 is a schematic structural view of a fuel cell of the present invention.
In fig. 4:
1 fuel cell stack, 6 hydrogen gas water-vapor separator, 6' air gas water-vapor separator, 7 fuel cell cooling fluid water tank, 8 cooling fluid circulating pump, 9 radiator, 10 hydrogen recycling device, 11 hydrogen humidifying device, 12 air humidifying device, 17 cooling fluid inlet into fuel cell stack, 18 hydrogen inlet into fuel cell stack, 19 air inlet into fuel cell stack, 20, 21, 25 electromagnetic valve, 23 hydrogen temperature and humidity adjusting device, 24 air temperature and humidity adjusting device TH, RH hydrogen temperature and relative humidity, TA, RA air temperature and relative humidity.
Detailed Description
The invention is further described with reference to the following drawings and specific embodiments.
As shown in fig. 4 in combination with fig. 1,a fuel cell with a hydrogen air temperature and humidity adjusting device comprises a fuel cell stack 1, a hydrogen storage device 2, a hydrogen pressure reducing valve 3, a hydrogen humidifying device 11, an air filtering device 4, an air compression supply device 5, an air humidifying device 12, a hydrogen water-steam separator 6, a hydrogen circulating pump 10, an air water-steam separator 6', a water tank 7, a cooling fluid circulating pump 8 and a radiator 9, and further comprises a hydrogen temperature and humidity adjusting device 24 and an air temperature and humidity adjusting device 23, wherein the hydrogen temperature and humidity adjusting device 24 is arranged on a pipeline behind the hydrogen humidifying device 11 and in front of a hydrogen inlet 18 of the fuel cell stack, and the air temperature and humidity adjusting device 23 is arranged on a pipeline behind the air humidifying device 12 and in front of an air inlet 19 of the fuel cell stack.
The hydrogen or air temperature and humidity adjusting device 24 or 23 can have the following two structures:
1. as shown in fig. 2, the hydrogen or air temperature and humidity adjusting device includes a hydrogen or air inlet pipe 301, a plurality of hydrogen or air manifolds 302, a hydrogen or air outlet pipe 303, and a cavity 304 filled with a cooling fluid, wherein the plurality of hydrogen or air manifolds 302 are respectively connected with the hydrogen or air inlet pipe 301 and the hydrogen or air outlet pipe 303 from head to tail, and the plurality of hydrogen or air manifolds 302 are disposed in the cavity 304 filled with the cooling fluid. The plurality of hydrogen or air manifolds 302 are arranged in parallel. Buffer cavities 305 are respectively arranged at the joints of the hydrogen or air manifolds 302, the hydrogen or air inlet pipe 301 and the hydrogen or air outlet pipe 303. The cavity 304 filled with the cooling fluid is provided with a cooling fluid inlet 306 and a cooling fluid outlet 307, and the cooling fluid inlet 306 and the cooling fluid outlet 307 are respectively arranged at the upper, lower, left and right opposite angles of the cavity 304.
2. As shown in fig. 3, another hydrogen or air temperature and humidity adjusting device includes a hydrogen or air inlet pipe 311, a hydrogen or air outlet pipe 312, a cavity 313 through which hydrogen or air passes, and a cooling fluid coil 314, wherein the hydrogen or air inlet pipe 311 and the hydrogen or air outlet pipe 312 are respectively disposed at left and right or upper and lower opposite corners of the cavity 313 through which hydrogen or air passes, and the cooling fluid coil 314 is fully distributed in the cavity 313 through which hydrogen or air passes. The inlet 315 and the outlet 316 of the cooling fluid coil 314 are disposed at the upper, lower, or left and right corners of the hydrogen or air passing cavity 313.
In this embodiment, when the humidified hydrogen and air coming out of the humidifying devices 11 and 12 tend to deviate from the target control temperature and humidity values, and then TH, RH, TA, and RA are respectively detected, if deviation from the target control value is found, the electromagnetic valves 20 and 21 are automatically opened, the valve-electromagnetic valve 25 is closed to PID-regulate TH, RH, TA, and RA to approach the target values, and when the target values are reached, the valve- electromagnetic valves 20 and 21 are automatically closed, and the electromagnetic valve 25 is opened.
The fuel cell system of the invention has the characteristics that the hydrogen and the air can regulate the temperature and the humidity:
the hydrogen and the air are humidified to 100 percent through the humidifying devices 11 and 12 and reach a certain temperature value;
the devices 23 and 24 for automatically adjusting the temperature and humidity of the hydrogen and the air are respectively arranged between the hydrogen and air humidifying device and the inlets 18 and 19 of the hydrogen and the air into the fuel cell stack;
the automatic control means will control the values according to the hydrogen, air temperature, relative humidity targets, such as: carrying out target PID control on the relative humidity value of 70-90% at the temperature of 60-70 ℃;
the opening and closing amount control is performed by the solenoid valves 20, 21, 25.
The present embodiment is applied to a 120KW fuel cell power generation system as shown in fig. 3. The working temperature of the fuel cell is 70 ℃, and the temperature is reduced to 68 ℃ after the heat is radiated by the radiator 9. After hydrogen and air flow through the humidifying devices 11 and 12 under any fuel cell working state and flow rate, the temperature is changed into gas with the temperature of 60 ℃ and the relative humidity of 100%, and the temperature and the relative humidity of the hydrogen and the air entering the fuel cell stack are controlled as follows: the hydrogen temperature was 62 deg.C, the relative humidity was 80%, the air temperature was 62 deg.C, and the relative humidity was 80%.
When the hydrogen and air enter the adjusting devices 23 and 24 and the sensors TH, RH, TA and RA detect that the hydrogen and air deviate from the target values, the electromagnetic valves 20 and 21 are automatically opened, and the electromagnetic valve 25 is closed; the solenoid valves 20, 21 are not closed again until the target value is approached, and the solenoid valves 25 are opened, so that the temperature and humidity of the hydrogen gas and air entering the fuel cell can reach the target control value by PID control regardless of changes in the ambient temperature at any flow rate. The fuel cell remains stable under any operating conditions and output power conditions.
Claims (9)
1. A fuel cell with hydrogen air temperature and humidity regulator includes fuel cell stack, hydrogen storage device, hydrogen pressure reducing valve, hydrogen humidifying device, air filter, air compression supply device, air humidifying device, hydrogen gas water-steam separator, hydrogen circulating pump, air water-steam separator, water tank, cooling fluid circulating pump, radiator, and features that it also includes hydrogen temperature and humidity regulator and air temperature and humidity regulator, which are set on the pipeline behind the hydrogen humidifying device and in front of the hydrogen inlet of the fuel cell stack, and are set on the pipeline behind the air humidifying device and in front of the air inlet of the fuel cell stack.
2. The fuel cell with the hydrogen air temperature and humidity adjusting device according to claim 1, wherein the hydrogen or air temperature and humidity adjusting device comprises a hydrogen or air inlet pipe, a plurality of hydrogen or air manifolds, a hydrogen or air outlet pipe and a cavity filled with a cooling fluid, the heads and the tails of the plurality of hydrogen or air manifolds are respectively communicated with the hydrogen or air inlet pipe and the hydrogen or air outlet pipe, and the plurality of hydrogen or air manifolds are arranged in the cavity filled with the cooling fluid.
3. A fuel cell with a hydrogen air temperature and humidity regulating device as claimed in claim 2, wherein the plurality of hydrogen or air manifolds are arranged in parallel.
4. The fuel cell with the hydrogen air temperature and humidity adjusting device according to claim 2, wherein buffer cavities are respectively arranged at the joints of the hydrogen or air manifolds and the hydrogen or air inlet pipe and the hydrogen or air outlet pipe.
5. A fuel cell with a hydrogen-air temperature and humidity adjusting device according to claim 2, wherein the chamber filled with the flow of the cooling fluid is provided with a cooling fluid inlet and a cooling fluid outlet, and the cooling fluid inlet and the cooling fluid outlet are respectively provided at upper, lower, left and right diagonal positions of the chamber.
6. The fuel cell with the hydrogen air temperature and humidity adjusting device according to claim 1, wherein the hydrogen or air temperature and humidity adjusting device comprises a hydrogen or air inlet pipe, a hydrogen or air outlet pipe, a cavity through which hydrogen or air passes, and a cooling fluid coil pipe, the hydrogen or air inlet pipe and the hydrogen or air outlet pipe are respectively arranged at the left and right or upper and lower diagonal positions of the cavity through which hydrogen or air passes, and the cooling fluid coil pipe is fully distributed in the cavity through which hydrogen or air passes.
7. A fuel cell with hydrogen gas air temperature and humidity regulating device as claimed in claim 6, wherein the inlet and outlet of the cooling fluid coil are provided at the upper, lower, or right and left diagonal positions of the hydrogen gas or air passing cavity.
8. A fuel cell with hydrogen gas air temperature and humidity adjustment device according to claim 2 or 6, characterized in that the cooling fluid in the cooling fluid coil or the chamber filled with the cooling fluid flow is shared with the cooling fluid in the fuel cell cooling system.
9. A fuel cell with hydrogen gas air temperature and humidity regulating device according to claim 2 or 6, wherein the cooling fluid in the cooling fluid coil or the chamber filled with the cooling fluid flow is controlled by a solenoid valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100677102A CN100517842C (en) | 2004-11-02 | 2004-11-02 | Fuel cell with hydrogen gas air temperature and humidity adjusting device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100677102A CN100517842C (en) | 2004-11-02 | 2004-11-02 | Fuel cell with hydrogen gas air temperature and humidity adjusting device |
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| Publication Number | Publication Date |
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| CN1770534A true CN1770534A (en) | 2006-05-10 |
| CN100517842C CN100517842C (en) | 2009-07-22 |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101197451B (en) * | 2006-12-06 | 2010-06-09 | 通用汽车环球科技运作公司 | Thermal control of cathode inlet air flow for a fuel cell system |
| CN101345318B (en) * | 2007-07-10 | 2010-06-16 | 比亚迪股份有限公司 | Humidification system of fuel cell |
| CN104701556A (en) * | 2013-12-04 | 2015-06-10 | 陕西荣基实业有限公司 | Temperature-control system for hydrogen fuel cell |
| CN105552401A (en) * | 2016-02-03 | 2016-05-04 | 中国东方电气集团有限公司 | Fuel cell equipment and fuel cell energy system |
| CN106129436A (en) * | 2016-06-22 | 2016-11-16 | 江苏绿遥燃料电池***制造有限公司 | A kind of compact type intelligent humidification system for fuel cell and air-humidification method thereof |
| CN108258266A (en) * | 2017-12-28 | 2018-07-06 | 同济大学 | A kind of adaptive fuel cell system and control method |
| CN108682878A (en) * | 2018-05-09 | 2018-10-19 | 湖南优加特装智能科技有限公司 | Temp and humidity regulator and hydrogen fuel cell with it |
| CN109216734A (en) * | 2018-09-30 | 2019-01-15 | 河南豫氢动力有限公司 | A kind of auxiliary system facilitating fuel cell humidifying and cold-starting |
| CN110165244A (en) * | 2019-05-16 | 2019-08-23 | 苏州市华昌能源科技有限公司 | The temperature and humidity control system and temperature/humidity control method of fuel cell |
| CN112599814A (en) * | 2020-11-25 | 2021-04-02 | 清华大学 | Fuel cell system and fuel cell vehicle |
| CN113675448A (en) * | 2020-05-15 | 2021-11-19 | 北京亿华通科技股份有限公司 | Hydrogen flow calculation method |
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2004
- 2004-11-02 CN CNB2004100677102A patent/CN100517842C/en active Active
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7811713B2 (en) | 2006-12-06 | 2010-10-12 | Gm Global Technology Operations, Inc. | Thermal control of cathode inlet air flow for a fuel cell system |
| CN101197451B (en) * | 2006-12-06 | 2010-06-09 | 通用汽车环球科技运作公司 | Thermal control of cathode inlet air flow for a fuel cell system |
| CN101345318B (en) * | 2007-07-10 | 2010-06-16 | 比亚迪股份有限公司 | Humidification system of fuel cell |
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| CN109216734A (en) * | 2018-09-30 | 2019-01-15 | 河南豫氢动力有限公司 | A kind of auxiliary system facilitating fuel cell humidifying and cold-starting |
| CN109216734B (en) * | 2018-09-30 | 2023-10-31 | 河南豫氢动力有限公司 | Auxiliary system for facilitating humidification and low-temperature start of fuel cell |
| CN110165244A (en) * | 2019-05-16 | 2019-08-23 | 苏州市华昌能源科技有限公司 | The temperature and humidity control system and temperature/humidity control method of fuel cell |
| CN110165244B (en) * | 2019-05-16 | 2021-04-09 | 苏州市华昌能源科技有限公司 | Temperature and humidity control system and temperature and humidity control method for fuel cell |
| CN113675448A (en) * | 2020-05-15 | 2021-11-19 | 北京亿华通科技股份有限公司 | Hydrogen flow calculation method |
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