CN1770526A - Fuel cell generating system capable of realizing self-starting without external power help - Google Patents
Fuel cell generating system capable of realizing self-starting without external power help Download PDFInfo
- Publication number
- CN1770526A CN1770526A CNA2004100677121A CN200410067712A CN1770526A CN 1770526 A CN1770526 A CN 1770526A CN A2004100677121 A CNA2004100677121 A CN A2004100677121A CN 200410067712 A CN200410067712 A CN 200410067712A CN 1770526 A CN1770526 A CN 1770526A
- Authority
- CN
- China
- Prior art keywords
- hydrogen
- fuel cell
- self
- starting
- valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000000446 fuel Substances 0.000 title claims abstract description 122
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 98
- 238000001816 cooling Methods 0.000 claims abstract description 11
- 239000001257 hydrogen Substances 0.000 claims description 105
- 229910052739 hydrogen Inorganic materials 0.000 claims description 105
- 238000010248 power generation Methods 0.000 claims description 43
- 239000000498 cooling water Substances 0.000 claims description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 18
- 230000017525 heat dissipation Effects 0.000 claims description 10
- 230000000087 stabilizing effect Effects 0.000 claims description 8
- 238000000034 method Methods 0.000 abstract description 6
- 239000012528 membrane Substances 0.000 description 25
- 239000007800 oxidant agent Substances 0.000 description 12
- 230000001590 oxidative effect Effects 0.000 description 12
- 238000006243 chemical reaction Methods 0.000 description 11
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 10
- 239000001301 oxygen Substances 0.000 description 10
- 229910052760 oxygen Inorganic materials 0.000 description 10
- 230000033228 biological regulation Effects 0.000 description 7
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 6
- 239000007789 gas Substances 0.000 description 6
- 150000002431 hydrogen Chemical class 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
- 238000003487 electrochemical reaction Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 239000007795 chemical reaction product Substances 0.000 description 3
- 239000000306 component Substances 0.000 description 3
- 239000012809 cooling fluid Substances 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 239000002737 fuel gas Substances 0.000 description 3
- 230000002528 anti-freeze Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- -1 hydrogen cations Chemical class 0.000 description 2
- 239000000463 material Substances 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
- 238000012544 monitoring process Methods 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 101100537375 Homo sapiens TMEM107 gene Proteins 0.000 description 1
- 102100036728 Transmembrane protein 107 Human genes 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 239000003502 gasoline Substances 0.000 description 1
- 239000007770 graphite material Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 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
- 238000002407 reforming Methods 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
Landscapes
- Fuel Cell (AREA)
Abstract
This invention relates to one automatic fuel battery generating system without outside power, which comprises the following five systems as hydrogen gas supply sub system, air supply sub system, cooling dissipation sub system, control sub system and fuel battery stack output sub system. Comparing with current technique, this invention omits current fuel battery necessary start storage batter with compact structure and low process cost and solves the current problems of invalid starting of current battery.
Description
Technical Field
The invention relates to a fuel cell, in particular to a fuel cell power generation system which can realize self-starting without the help of an external power supply.
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 and 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.
Proton Exchange Membrane Fuel Cells (PEMFC) can be used as the power system of all vehicles, ships and other vehicles, and can also be used as portable and fixed power generation devices. When the proton exchange membrane fuel cell is used as a vehicle, a ship power system or a mobile/fixed power station, hydrogen is generally used as fuel, air is used as oxidant, and the net power output is different according to different requirements of the application, and generally the net power output is required to be from thousands of watts to hundreds of kilowatts.
A fuel cell power generation system generally consists of the following parts: (1) a fuel cell stack; (2) a fuel hydrogen supply subsystem; (3) an air supply subsystem; (4) a circulating cooling heat dissipation subsystem; (5) and the automatic control and electric energy output subsystem. The other parts of the entire fuel cell power generation system other than the fuel cell stack may also be collectively referred to as a fuel cell operation support system.
In order to ensure the continuous, safe and reliable operation of the fuel cell stack and output the required effective power to the outside, it is necessary to supply sufficient air, hydrogen and circulating cooling water (antifreeze solution is used in winter) to the fuel cell, and therefore, a blower or an air compressor for supplying air, a water pump for supplying power to the circulating cooling water (antifreeze solution), a radiator fan, and a fuel cell stack operation support system itself such as an electromagnetic valve and other control and monitoring components must also consume a certain amount of power. The most important power consuming components are the blower (or air compressor), water pump and radiator. The power consumption of the solenoid valves and other control and monitoring components is only a small fraction.
When the system is rated to output net power, the total power consumed by the operation support system of the fuel cell system supplied with air by the blower does not exceed 10% of the total power output by the electric pile, and the blower and the water pump can be started slowly, so that the required starting power is low, and the self-starting can be completely realized. The total power consumed by the operation support system of the fuel cell system adopting the air compressor to supply air accounts for about 20% of the total power output by the electric pile when the system is rated to output net power, and the power required by the air compressor for starting slowly is very large, so that the difficulty in realizing self-starting is relatively increased.
At present, most proton exchange membrane fuel cell power generation systems need to be powered by an external power supply when starting, and the external power supply can be a storage battery or power is taken from a power grid. The fuel cell power generation system is assisted to start until the stable working state is reached, and the fuel cell power generation system is switched to supply power to the fuel cell after the stable working state is reached. When the fuel cell power generation system is applied as a vehicle, a ship power system or a mobile power station, the two external power sources have insurmountable technical defects:
1. getting electricity from a power grid: it is not feasible to use fuel cell power system for vehicle and fuel cell power system for ship, and it is very inconvenient to use fixed or mobile fuel cell power generation system, and it can not be started at all when the power grid is cut off.
2. Starting by adopting a storage battery: when the storage battery is adopted for starting, a group of power supply storage batteries must be additionally arranged in the system, the complexity of the system is increased, and the voltage of the storage battery is difficult to match with the voltage output of the fuel cell. For a fuel cell power generation system of dozens of kilowatts to hundreds of kilowatts, the consumption of a starting storage battery matched with the fuel cell power generation system is also huge, the cost of the system is increased, the weight of the system is greatly increased, and for an automobile fuel cell power system and a ship fuel cell power system, the storage battery occupies a large amount of space, the assembly difficulty is increased, and the fuel economy is reduced due to the increase of the weight.
The Shanghai Shenli science and technology company 'a fuel cell power generation system with a self-starting device' (patent number: 03209953.3) provides a method, and the fuel cell power generation system with the self-starting device comprises a fuel cell stack, a fuel hydrogen supply subsystem, an air supply subsystem, a cooling and heat dissipation subsystem, an automatic control and electric energy output subsystem and the self-starting device. The technology can realize the self-starting of the fuel cell power generation system only by carrying one to two batteries with very small power, volume and weight. A schematic diagram of which is shown in fig. 1. In fig. 1, 4, a high-pressure hydrogen tank, 2, an air delivery pump, 1, a fuel cell stack, 8, a hydrogen supply solenoid valve, 31, an air supply solenoid valve, 12, a hydrogen-water-vapor separator, 32, an air-water-vapor separator, 33, an air exhaust throttle valve, 41, a hydrogen circulation pump, 15, a cooling water (liquid) tank, 16, a cooling water (liquid) circulation pump, 17, a radiator, 51, a stack output load, 30, an air pressure reducing valve, and 7, a hydrogen pressure reducing valve. However, the technique has the following technical defects:
1. some self-starting devices such as a small air pump, an air pump solenoid valve, and a battery pack with low power from one to two are additionally added. These devices not only lead to the complexity of the whole fuel cell power generation system and increase the price, but also occupy the valuable effective space on the vehicle and ship and reduce the power efficiency of the vehicle and ship when the fuel cell power generation system is applied as the power system of the vehicle and ship.
2. When the storage battery is out of service for a long time or out of service due to self-discharge or the like, the whole fuel cell power generation system cannot be self-started.
Disclosure of Invention
The present invention is directed to overcoming the above-mentioned drawbacks of the prior art and providing a fuel cell power generation system that can achieve self-start without the aid of an external power source.
The purpose of the invention can be realized by the following technical scheme: a fuel cell power generation system capable of realizing self-starting without the help of an external power supply comprises the following five subsystems: (1) the system comprises a hydrogen supply subsystem, (2) an air supply subsystem, (3) a cooling and heat dissipation subsystem, (4) a control subsystem and (5) a fuel cell stack electric energy output subsystem; the hydrogen supply subsystem comprises a high-pressure hydrogen storage tank, a manual stop valve of the hydrogen tank, a hydrogen charging valve, a primary high-pressure reducing valve, a hydrogen supply electromagnetic valve, a hydrogen humidifier, a hydrogen steam-water separator, a hydrogen timing discharge electromagnetic valve and a connecting pipeline, the air supply subsystem comprises a high-pressure blower, an air humidifier and a connecting pipeline, the cooling and heat dissipation subsystem comprises a cooling water storage tank, a cooling water circulating pump, a cooling water radiator, a cooling water storage tank drain valve and a connecting pipeline, the control subsystem comprises a central controller, the central controller is used for controlling the on and off of the hydrogen supply electromagnetic valve, the hydrogen timing discharge electromagnetic valve, the high-pressure blower and the cooling water circulating pump in a centralized manner, and the central controller is used for controlling the rotating speed of a high-pressure blower and a cooling water circulating pump motor under normal operation and the discharge frequency of the hydrogen timing discharge, the fuel cell stack electric energy output subsystem comprises a fuel cell external load system, wherein the external load system comprises a contactor and an external load; the system is characterized in that the hydrogen supply subsystem further comprises a hydrogen supply manual stop valve, a secondary low-pressure reducing valve and a hydrogen manual discharge stop valve, the fuel cell stack electric energy output subsystem further comprises a fuel cell self power supply system, the self power supply system comprises a voltage stabilizing module, a first speed regulator and a second speed regulator, the first speed regulator controls a high-pressure blower in a starting state, and the second speed regulator controls a cooling water circulating pump in the starting state.
The second-stage low-pressure reducing valve is arranged between the hydrogen supply electromagnetic valve and the hydrogen humidifier.
The manual stop valve of the hydrogen tank on the high-pressure hydrogen storage tank can be manually operated to open to supply high-pressure hydrogen.
The hydrogen supply manual stop valve is arranged between the first-stage high-pressure reducing valve and the second-stage low-pressure reducing valve and is connected with the hydrogen supply electromagnetic valve in parallel.
The hydrogen manual discharge stop valve is arranged on a hydrogen outlet pipeline of the fuel cell stack and is connected with the hydrogen steam-water separator in parallel.
The voltage stabilizing module is a 24V DC voltage stabilizing module.
The first speed regulator is a first DC/DC + variable frequency speed regulation or wide voltage range motor speed regulator.
The second speed regulator is a second DC/DC + variable frequency speed regulation or wide voltage range motor speed regulator.
The cooling water radiator is provided with a radiating fan.
The fuel cell power generation system can send a certain amount of air to the air exhaust pipe of the fuel cell stack by using a mouth or a pump before self-starting so as to assist the self-starting.
Compared with the prior art, the invention can realize self-starting without any external power supply, saves the necessary starting storage battery of the existing fuel cell power generation system, and has more compact structure and lower manufacturing cost; meanwhile, the problem that the fuel cell power generation system cannot be started due to failure of a storage battery of the conventional fuel cell power generation system caused by long-term storage or failure caused by self-discharge is solved.
The present invention is applicable to self-starting of all of vehicle fuel cell power generation systems, marine fuel cell power generation systems, stationary and mobile power plants, and the like.
Drawings
FIG. 1 is a schematic structural view of a conventional fuel cell power generation system;
fig. 2 is a schematic structural diagram of the present invention.
Detailed Description
The present invention will be further described with reference to the following examples.
Examples
As shown in fig. 2, a fuel cell power generation system capable of self-starting without the help of external power comprises the following five subsystems: (1) the system comprises a hydrogen supply subsystem, (2) an air supply subsystem, (3) a cooling and heat dissipation subsystem, (4) a control subsystem and (5) a fuel cell stack electric energy output subsystem; the hydrogen supply subsystem comprises a high-pressure hydrogen storage tank 4, a manual hydrogen tank stop valve 6, a hydrogen charging valve 5, a primary high-pressure reducing valve 7, a hydrogen supply electromagnetic valve 8, a manual hydrogen supply stop valve 9, a secondary low-pressure reducing valve 10, a hydrogen humidifier 11, a hydrogen steam-water separator 12, a hydrogen timed discharge electromagnetic valve 13, a manual hydrogen discharge stop valve 14 and a connecting pipeline, wherein the secondary low-pressure reducing valve 10 is arranged between the hydrogen supply electromagnetic valve 8 and the hydrogen humidifier 11, the manual hydrogen supply stop valve 9 is arranged between the primary high-pressure reducing valve 7 and the secondary low-pressure reducing valve 10 and is connected with the hydrogen supply electromagnetic valve 8 in parallel, and the manual hydrogen discharge stop valve 14 is arranged on a hydrogen outlet pipeline of the fuel cell stack 1 and is connected with the hydrogen steam-water separator 12 in parallel; the air supply subsystem comprises a high-pressure blower 2, an air humidifier 3 and a connecting pipeline; the cooling and heat dissipation subsystem comprises a cooling water storage tank 15, a cooling water circulating pump 16 (with a heat dissipation fan), a cooling water radiator 17, a cooling water storage tank drain valve 18 and a connecting pipeline; the control subsystem comprises a central controller 23, the central controller 23 controls the opening and closing of the hydrogen supply electromagnetic valve 8, the hydrogen timing discharge electromagnetic valve 13, the high-pressure blower 2 and the cooling water circulating pump 16 in a centralized manner, and the central controller 23 controls the rotating speeds of the motors of the high-pressure blower 2 and the cooling water circulating pump 16 under normal operation and the discharge frequency of the hydrogen timing discharge electromagnetic valve 13; the fuel cell stack electric energy output subsystem comprises a fuel cell self power supply system and a fuel cell external load system, wherein the fuel cell self power supply system comprises a 24V DC voltage stabilizing module 19, a first DC/DC + frequency conversion speed regulation or wide voltage range motor speed regulator 20 and a second DC/DC + frequency conversion speed regulation or wide voltage range motor speed regulator 21, the external load system comprises a contactor 22 and an external load, the first DC/DC + frequency conversion speed regulation or wide voltage range motor speed regulator 20 controls the high-pressure blower 2 in a starting state, and the second DC/DC + frequency conversion speed regulation or wide voltage range motor speed regulator 21 controls the cooling water circulating pump 17 in the starting state.
The embodiment is applied to a fuel cell power generation system for 5-10 kw vehicle-mounted power, the fuel cell stack of the power generation system consists of 100 single cells, the open-circuit voltage is about 100V, and the workingvoltage range is between 100V and 50V. All the electromagnetic valves, the radiating fan and the control power supply are provided by a 24VDC voltage stabilizing module, and the 24VDC voltage stabilizing module directly takes electricity from the fuel cell. The blower and the water pump directly take electricity from the fuel cell through a boosting DC/DC (input voltage is 100 VDC-50 VDC, output voltage is 310VDC) and a frequency converter. The opening and closing of all the electromagnetic valves, the starting and stopping of the blower and the water pump, the speed regulation and the starting and stopping of the cooling fan are all controlled by the central controller in a centralized way.
The fuel cell self-starting step of the invention:
1. after the fuel cell power generation system is shut down for a certain period of time, the entire system has no ability to supply power to the outside or to power consuming devices supporting the fuel cell power generation system because the hydrogen fuel in the fuel cell stack and in the hydrogen pipe is depleted. All the solenoid valves are in a normally closed state as indicated by the open circuit voltage of the fuel cell stack 1 being zero.
2. The manual stop valve 6 of the high-pressure hydrogen tank is opened, the first-stage high-pressure reducing valve 7 is adjusted to required pressure, the manual hydrogen supply valve 9 is opened, the second-stage low-pressure reducing valve 10 is adjusted to pile running pressure, the manual hydrogen discharge stop valve 14 is opened to blow off impurity gas and liquid water on the hydrogen side, then the manual hydrogen discharge stop valve is closed, and at the moment, the hydrogen side of the fuel cell pile and the hydrogen subsystem are filled with hydrogen.
3. There are two possibilities in the fuel cell stack air subsystem:
(1) the air side of the fuel cell stack and the air subsystem already have air therein;
(2) the oxygen is depleted on the air side of the fuel cell stack and in the air sub-system.
For the second, it may be necessary to supply a quantity of air to the air and water exhaust tube using a nozzle or pump to ensure that air is present on the air side of the fuel cell stack and in the air subsystem (i.e., oxygen is present).
4. When oxygen is present on the air side of the fuel cell stack and hydrogen is present on the hydrogen side, the entire fuel cell stack establishes an open circuit voltage. Once the open circuit voltage is established, the fuel cell stack will power the 24VDC regulator module 19 and the 100V-50V boost 310V DC/DC20, 21. The 24VDC voltage stabilizing module supplies power to the central controller, at the moment, after the controller automatically detects that the whole system is normal, the hydrogen supply electromagnetic valve 5 is firstly opened, the air blower 2 and the water pump 16 are started in a frequency conversion mode, the hydrogen timed discharge electromagnetic valve is opened and closed in a timed mode, and the fan of the radiator is started and stopped according to the running temperature of the system.
5. And after the whole fuel cell power generation system is in a fully automatic control state, closing the hydrogen supply manual stop valve 9.
6. After the fuel cell power generation system operates normally, the front end contactor of the external load is closed, and the fuel cell starts to supply power to the external load.
Claims (10)
1. A fuel cell power generation system capable of realizing self-starting without the help of an external power supply comprises the following five subsystems: (1) the system comprises a hydrogen supply subsystem, (2) an air supply subsystem, (3) a cooling and heat dissipation subsystem, (4) a control subsystem and (5) a fuel cell stack electric energy output subsystem; the hydrogen supply subsystem comprises a high-pressure hydrogen storage tank, a manual stop valve of the hydrogen tank, a hydrogen charging valve, a primary high-pressure reducing valve, a hydrogen supply electromagnetic valve, a hydrogen humidifier, a hydrogen steam-water separator, a hydrogen timing discharge electromagnetic valve and a connecting pipeline, the air supply subsystem comprises a high-pressure blower, an air humidifier and a connecting pipeline, the cooling and heat dissipation subsystem comprises a cooling water storage tank, a cooling water circulating pump, a cooling water radiator, a cooling water storage tank drain valve and a connecting pipeline, the control subsystem comprises a central controller, the central controller is used for controlling the on and off of the hydrogen supply electromagnetic valve, the hydrogen timing discharge electromagnetic valve, the high-pressure blower and the cooling water circulating pump in a centralized manner, and the central controller is used for controlling the rotating speed of a high-pressure blower and a cooling water circulating pump motor under normal operation and the discharge frequency of the hydrogen timing discharge, the fuel cell stack electric energy output subsystem comprises a fuel cell external load system, wherein the external load system comprises a contactor and an external load; the system is characterized in that the hydrogen supply subsystem further comprises a hydrogen supply manual stop valve, a secondary low-pressure reducing valve and a hydrogen manual discharge stop valve, the fuel cell stack electric energy output subsystem further comprises a fuel cell self power supply system, the self power supply system comprises a voltage stabilizing module, a first speed regulator and a second speed regulator, the firstspeed regulator controls a high-pressure blower in a starting state, and the second speed regulator controls a cooling water circulating pump in the starting state.
2. The fuel cell power generation system that self-starts without the aid of an external power source as claimed in claim 1, wherein the two-stage low pressure reducing valve is provided between the hydrogen supply solenoid valve and the hydrogen humidifier.
3. The fuel cell power generation system capable of self-starting without the aid of an external power supply as claimed in claim 1, wherein the manual hydrogen tank cut-off valve of the high-pressure hydrogen storage tank is manually opened to supply the high-pressure hydrogen.
4. The fuel cell power generation system capable of self-starting without the aid of an external power supply as set forth in claim 1, wherein said manual hydrogen supply cutoff valve is provided between the primary high-pressure reducing valve and the secondary low-pressure reducing valve and is connected in parallel with the hydrogen supply solenoid valve.
5. The fuel cell power generation system capable of realizing self-starting without the help of an external power supply as claimed in claim 1, wherein the hydrogen manual discharge stop valve is arranged on a hydrogen outlet pipeline of the fuel cell stack and is connected with the hydrogen steam-water separator in parallel.
6. The fuel cell power generation system according to claim 1, wherein the regulator module is a 24V DC regulator module.
7. The fuel cell power generation system capable of self-starting without the aid of an external power source of claim 1, wherein the first speed regulator is a first DC/DC + variable frequency speed regulator or a wide voltage range motor speed regulator.
8. The fuel cell power generation system capable of self-starting without the aid of an external power source of claim 1, wherein the second governor is a second DC/DC + variable frequency governor or a wide voltage range motor governor.
9. The fuel cell power generation system that self-starts without the assistance of an external power source as set forth in claim 1, wherein said cooling water radiator is provided with a radiator fan.
10. The fuel cell power system of claim 1, wherein the fuel cell power system is capable of self-starting without the aid of an external power source by supplying a volume of air to the stack air exhaust tube via a nozzle or pump prior to self-starting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100677121A CN100511791C (en) | 2004-11-02 | 2004-11-02 | Fuel cell generating system capable of realizing self-starting without external power help |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100677121A CN100511791C (en) | 2004-11-02 | 2004-11-02 | Fuel cell generating system capable of realizing self-starting without external power help |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1770526A true CN1770526A (en) | 2006-05-10 |
| CN100511791C CN100511791C (en) | 2009-07-08 |
Family
ID=36751634
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100677121A Active CN100511791C (en) | 2004-11-02 | 2004-11-02 | Fuel cell generating system capable of realizing self-starting without external power help |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100511791C (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7622905B2 (en) | 2006-10-03 | 2009-11-24 | Wistron Corporation | Voltage regulator of a DC power supply |
| CN102013504A (en) * | 2010-11-05 | 2011-04-13 | 新源动力股份有限公司 | Test platform temperature control system and control method for proton exchange membrane fuel cell |
| CN106499954A (en) * | 2016-11-03 | 2017-03-15 | 北京航天试验技术研究所 | A kind of hydrogen manages safe venting system concentratedly |
| CN107492672A (en) * | 2016-06-13 | 2017-12-19 | 天津思高科技发展有限公司 | Special Hydrogen Energy pressure power generation equipment on a kind of hydrogen energy automobile |
| CN108134112A (en) * | 2017-12-25 | 2018-06-08 | 东风农业装备（襄阳）有限公司 | Fuel cell system and its application |
| CN110053495A (en) * | 2019-05-09 | 2019-07-26 | 深圳国氢新能源科技有限公司 | Hydrogen fuel cell dynamical system and industrial vehicle |
| CN110792479A (en) * | 2019-11-07 | 2020-02-14 | 安徽伯华氢能源科技有限公司 | Hydrogen power generation system |
| CN112615027A (en) * | 2020-12-07 | 2021-04-06 | 国网北京市电力公司 | Fuel cell power generation vehicle and ignition method thereof |
| CN115117402A (en) * | 2022-08-26 | 2022-09-27 | 海卓动力(青岛)能源科技有限公司 | Fuel cell system non-auxiliary starting system and starting method |
| CN107394235B (en) * | 2017-07-13 | 2023-06-30 | 上海重塑能源科技有限公司 | Fuel cell auxiliary system |
| JP7460718B1 (en) | 2022-09-26 | 2024-04-02 | 本田技研工業株式会社 | fuel cell system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2511866B2 (en) * | 1986-02-07 | 1996-07-03 | 株式会社日立製作所 | Fuel cell power generation system and method of starting the same |
-
2004
- 2004-11-02 CN CNB2004100677121A patent/CN100511791C/en active Active
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7622905B2 (en) | 2006-10-03 | 2009-11-24 | Wistron Corporation | Voltage regulator of a DC power supply |
| CN102013504A (en) * | 2010-11-05 | 2011-04-13 | 新源动力股份有限公司 | Test platform temperature control system and control method for proton exchange membrane fuel cell |
| CN107492672B (en) * | 2016-06-13 | 2020-01-17 | 成都天高机电设备有限公司 | Special hydrogen energy pressure power generation equipment for hydrogen energy automobile |
| CN107492672A (en) * | 2016-06-13 | 2017-12-19 | 天津思高科技发展有限公司 | Special Hydrogen Energy pressure power generation equipment on a kind of hydrogen energy automobile |
| CN106499954A (en) * | 2016-11-03 | 2017-03-15 | 北京航天试验技术研究所 | A kind of hydrogen manages safe venting system concentratedly |
| CN107394235B (en) * | 2017-07-13 | 2023-06-30 | 上海重塑能源科技有限公司 | Fuel cell auxiliary system |
| CN108134112A (en) * | 2017-12-25 | 2018-06-08 | 东风农业装备（襄阳）有限公司 | Fuel cell system and its application |
| CN110053495A (en) * | 2019-05-09 | 2019-07-26 | 深圳国氢新能源科技有限公司 | Hydrogen fuel cell dynamical system and industrial vehicle |
| CN110792479A (en) * | 2019-11-07 | 2020-02-14 | 安徽伯华氢能源科技有限公司 | Hydrogen power generation system |
| CN110792479B (en) * | 2019-11-07 | 2020-07-28 | 安徽伯华氢能源科技有限公司 | Hydrogen power generation system |
| CN112615027A (en) * | 2020-12-07 | 2021-04-06 | 国网北京市电力公司 | Fuel cell power generation vehicle and ignition method thereof |
| CN115117402A (en) * | 2022-08-26 | 2022-09-27 | 海卓动力(青岛)能源科技有限公司 | Fuel cell system non-auxiliary starting system and starting method |
| JP7460718B1 (en) | 2022-09-26 | 2024-04-02 | 本田技研工業株式会社 | fuel cell system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100511791C (en) | 2009-07-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8415065B2 (en) | Fuel cell system and method of controlling fuel cell system | |
| KR101433693B1 (en) | System and method of starting a fuel cell system | |
| CN101325263A (en) | Recovery of inert gas from a fuel cell exhaust stream | |
| CN1815786A (en) | Fuel-cell generating system capable of starting and operating in low-temperature environment | |
| CN1923560A (en) | Hybrid power system of fuel battery and energy-storage apparatus capable of quick changing and discharging | |
| CN1661839A (en) | Fuel cell with dynamic control device | |
| CN2763990Y (en) | Fuel cell generating system capable of starting and operating at low temperature | |
| CN1770526A (en) | Fuel cell generating system capable of realizing self-starting without external power help | |
| CN1770525A (en) | Fuel cell generating system with self-starting function | |
| CN100468076C (en) | Fuel cell test system with self-supporting and electric power output function | |
| CN2733612Y (en) | A fuel cell with dynamic control device | |
| CN2775852Y (en) | Fuel cell generating system capable of realizing automatic starting without helf of external power | |
| CN2768218Y (en) | Fuel cell with compact structure | |
| CN1585178A (en) | Fuel battery generating system with self-starter | |
| CN2650337Y (en) | Fuel cell electric generating system with self-start device | |
| CN1764002A (en) | Fuel cell capable of rapid response under output power abrupt intensification state | |
| CN2775851Y (en) | Fuel battery generating system with self starting function | |
| CN2720652Y (en) | Fuel-cell generating system with hydrogen intermittent safety discharging device | |
| CN2879436Y (en) | Device capable of making full use of hydrogen and oxygen of fuel cell | |
| CN2828835Y (en) | Testing system for fuel cell with self-support and power output function | |
| CN1684294A (en) | Self heat radiation and self wetting fuel cell stack with high power density | |
| CN2738406Y (en) | Large power fuel battery capable of making fuel hydrogen pressure stable | |
| CN2775854Y (en) | Motor driving and control device for supporting fuel cell self operation power consumption parts | |
| CN202076373U (en) | Novel fuel battery electric generator | |
| CN2718794Y (en) | Fuel cell capable of raising utilization ratio of hydrogen |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHANGHAI MUNICIPAL ELECTRIC POWER COMPANY Free format text: FORMER OWNER: SHANGHAI SHEN-LI HIGH TECH CO., LTD. Effective date: 20121221 Owner name: SHANGHAI SHEN-LI HIGH TECH CO., LTD. STATE GRID CO Effective date: 20121221 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 201401 FENGXIAN, SHANGHAI TO: 200122 PUDONG NEW AREA, SHANGHAI |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20121221 Address after: 200122 Shanghai City, Pudong New Area source deep road, No. 1122 Patentee after: Shanghai Electric Power Corporation Patentee after: Shanghai Shen-Li High Tech Co., Ltd. Patentee after: State Grid Corporation of China Address before: 201401, Shanghai Industrial Development Zone, dragon Yang Industrial Park, an international 27 Patentee before: Shanghai Shen-Li High Tech Co., Ltd. |