CN2828835Y - Testing system for fuel cell with self-support and power output function - Google Patents
Testing system for fuel cell with self-support and power output function Download PDFInfo
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- CN2828835Y CN2828835Y CN 200420114361 CN200420114361U CN2828835Y CN 2828835 Y CN2828835 Y CN 2828835Y CN 200420114361 CN200420114361 CN 200420114361 CN 200420114361 U CN200420114361 U CN 200420114361U CN 2828835 Y CN2828835 Y CN 2828835Y
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Abstract
The utility model relates to a fuel cell testing system with the functions of self-support and power output, which is composed of a hydrogen supply subsystem (1), an air supply subsystem (2), a cooling and heat-sinking subsystem (3), a control subsystem (4), a fuel cell pile power output subsystem (5) and a fuel cell pile testing and assembly jig subsystem (6), wherein the hydrogen supply subsystem also (1) comprises a secondary low-voltage pressure-reducing valve and a hydrogen manual exhaust stop valve; the fuel cell pile power output subsystem also comprises a fuel cell self power supply system which comprises an accumulator, a voltage-regulating module, a first motor controller and a second motor controller; the fuel cell pile testing and assembly jig subsystem comprises a worktable, a pressing device with adjustable pressure and positioning guide rods. The utility model has the advantages of simple structure, low cost, reliable performance, etc.
Description
Technical Field
The present invention relates to a fuel cell, and more particularly to a fuel cell testing system having self-supporting and power outputting functions.
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 operationof 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 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 compressor), the water pump and the radiator. The power consumption of the solenoid valves and other control and monitoring components is only a small fraction.
The total power consumed by the operation support system of the fuel cell system adopting the air blower to supply air is about 10 percent of the total power output by the electric pile when the system is rated to output net power, and the air blower and the water pump can be started slowly, so that the required starting power is very 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 is 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 is very high, so that the difficulty of 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 thestable 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 plurality of groups of power supply storage batteries are inevitably added in the system, and the complexity of the system is increased. 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, this technique also has the following technical drawbacks:
some self-starting devices such as small air pumps and air pump solenoid valves 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.
In addition, the existing fuel cell testing station needs an external power supply for power supply during starting and running, and an electromagnetic valve, a water pump and the like of the existing fuel cell testing station need to be externally connected with the power supply, so that the power consumption of the testing station is increased; furthermore, if there is no external power source near the fuel cell test station, the test station will not work.
SUMMERY OF THE UTILITY MODEL
The present invention is directed to overcome the above-mentioned drawbacks of the prior art, and provides a fuel cell testing system with self-supporting and power output functions, which has a simple structure, low cost and reliable performance.
The purpose of the utility model can be realized through the following technical scheme: a fuel cell testing system with self-supporting and power output functions is composed of the following six 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, (5) a fuel cell stack electric energy output subsystem, and (6) a fuel cell stack testing and assembling rack 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 stack and 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 second-stage 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 storage battery, a voltage regulating module, a first motor controller and a second motor controller, the first motor controller controls a high-pressure air blower which is started and runs, the second motor controller controls a cooling water circulating pump which is started and runs, and the fuel cell stack testing and assembling frame subsystem comprises a workbench, a pressure-adjustable pressing device and a positioning guide rod.
The cooling water radiator is provided with a radiating fan.
The hydrogen supply system is characterized by further comprising a first contactor, a second contactor and a third contactor, wherein the central controller controls the opening and closing of the hydrogen supply electromagnetic valve by controlling the first contactor, controls the opening frequency and the discharging time of the hydrogen gas timing discharging electromagnetic valve by controlling the second contactor, and controls the opening and closing of the cooling fan by controlling the third contactor.
And the central controller controls the starting and stopping of the high-pressure blower and the cooling water circulating pump and the rotating speed of the motor through the first motor controller and the second motor controller.
The second-stage low-pressure reducing valve is arranged between the hydrogen supply electromagnetic valve and the hydrogen humidifier.
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.
One end of the pressure regulating module is connected with the anode and the cathode of the fuel cell stack, and the other end of the pressureregulating module is connected with the storage battery.
The voltage regulating module is a bidirectional DC/DC voltage regulating module.
The storage battery is a 24V storage battery.
The workbench is provided with a plate type table board for supporting a pressure-adjustable pressing device and a fuel cell stack to be assembled and tested, the pressure-adjustable pressing device is arranged at one end of the table board, the fuel cell stack is arranged at the other end of the table board, at least two positioning guide rods are arranged, the positioning guide rods vertically penetrate through front and rear end plates of the fuel cell stack along the axial direction, and the pressure-adjustable pressing device is provided with an ejector rod which pushes the rear end plate of the fuel cell stack to do pressing action towards the front end plate along the axial direction.
Compared with the prior art, the utility model adopts a single group of low-voltage batteries and matches with some original components of the fuel cell, namely realizing the self-starting of the system, and saves a starting device which is specially arranged except the storage battery originally, therefore, the utility model has the advantages of simple structure, low manufacturing cost and reliable performance; furthermore, the utility model discloses fuel cell test system with self-supporting and power take off function can oneself generate electricity and start, and self operation sends unnecessary electric power and can also export supply load or other electrical apparatus.
Drawings
FIG. 1 is a schematic structural view of a conventional fuel cell power generation system;
FIG. 2 is a schematic structural view of the present invention;
fig. 3 is a schematic structural view of the fuel cell stack testing and mounting frame subsystem of the present invention.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific embodiments.
As shown in fig. 2, a fuel cell testing system with self-support and power output functions is composed of the following six 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, (5) a fuel cell stack electric energy output subsystem, and (6) a fuel cell stack testing and assembling rack 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 secondary low-pressure reducing valve 9, a hydrogen humidifier 10, a hydrogen steam-water separator 11, a hydrogen timed discharge electromagnetic valve 12, a manual hydrogen discharge stop valve 13 and a connecting pipeline, wherein the secondary low-pressure reducing valve 9 is arranged between the hydrogen supply electromagnetic valve 8 and the hydrogen humidifier 10, and the manual hydrogen discharge stop valve 13 is arranged on a hydrogen outlet pipeline of the fuel cell stack 1 and connected with the hydrogen steam-water separator 11 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 14, a cooling water circulating pump 15, a cooling water radiator 16, a drain valve 17 of the cooling water storage tank and aconnecting pipeline, wherein the cooling water radiator 16 is provided with a heat dissipation fan; the control subsystem comprises a central controller 20, the central controller 20 controls the opening and closing of the hydrogen supply electromagnetic valve 8, the hydrogen timing discharge electromagnetic valve 12, the high-pressure blower 3 and the cooling water circulating pump 15 in a centralized manner, and the central controller 20 controls the rotating speeds of the motors of the high-pressure blower 2 and the cooling water circulating pump 15 under normal operation and the discharge frequency of the hydrogen timing discharge electromagnetic valve 12; the fuel cell stack electric energy output subsystem include external load system of fuel cell, fuel cell self power supply system, external load system include contactor 26 and external load, self power supply system include 24V battery 19, two-way DC/DC voltage regulation module 18, first motor controller 21, second motor controller 22, two-way DC/DC voltage regulation module 18 one end and 1 positive negative pole of fuel cell stack link to each other, the other end links to each other with 24V battery 19, first motor controller 21 control start and the high-pressure blower 2 under the running state, second motor controller 22 control start and the cooling water circulating pump 15 under the running state.
The fuel cell power generation system further comprises a first contactor 23, a second contactor 24 and a third contactor 25, the central controller 20 controls the opening and closing of the hydrogen supply solenoid valve 8 by controlling the first contactor 23, controls the opening frequency and the discharge time of the hydrogen gas timed discharge solenoid valve 12 by controlling the second contactor 24, and controls the opening and closing of the cooling fan of the cooling water radiator 16 by controlling the third contactor 25.
The central controller 20 controls the high-pressureblower 2 and the cooling water circulation pump 15 to be turned on and off and controls the motor rotation speed through the first motor controller 21 and the second motor controller 22.
Referring to fig. 2, a fuel cell stack is composed of 100 single cells, an open-circuit voltage is about 100V, and a working voltage range is between 100V and 50V. All solenoid valves, radiator fans and control power are supplied by a bidirectional DC/DC or 24V battery. One end of the bidirectional DC/DC is connected with the anode and the cathode of the fuel cell, and the other end of the bidirectional DC/DC is connected with the 24V storage battery. The blower motor controller and the water pump motor controller are directly connected with the anode and the cathode of the fuel cell and the anode and the cathode of the bidirectional DC/DC high-voltage end, and the blower and the water pump motor are direct-current brushless motors which are adaptive to the output voltage of the fuel cell. 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. When the fuel cell is not started, the voltage of the 24V storage battery can be boosted to the voltage required by the blower and the water pump through the bidirectional DC/DC, and after the fuel cell is started successfully, the voltage of the fuel cell is reversely reduced to 24V through the bidirectional DC/DC to float and charge the storage battery.
The fuel cell testing system with self-supporting and power output functions of the present embodiment comprises the following self-starting steps:
after the fuel cell test system with the self-supporting and power output functions is shut down for a certain time, the whole system has no capability of supplying power tothe outside or a power consumption device supporting the fuel cell power generation system because the hydrogen fuel in the fuel cell stack and the hydrogen pipeline is consumed. 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.
And opening the manual stop valve 6 of the high-pressure hydrogen tank, adjusting the primary high-pressure reducing valve 7 to the required pressure, switching on a storage battery power supply to supply power to the central controller, and starting the central controller by electrifying. The two-stage low-pressure reducing valve 9 is adjusted to the pile operating pressure (the position of the pressure required by pile operation can also be preset), and the central controller controls the starting of the hydrogen supply electromagnetic valve 8 and the hydrogen timing discharge electromagnetic valve 12. The bidirectional DC/DC raises the voltage of the 24V storage battery to the voltage required by the starting of the blower and the water pump, the central controller instructs the starting of the blower and the water pump, the two sides of the electrode of the fuel cell are filled with hydrogen and air, the fuel cell establishes the voltage, and the storage battery, other 24V electric equipment and control components are supplied back through the bidirectional DC/DC. The fuel cell starts successfully.
After the fuel cell testing system with the self-supporting and power output functions operates normally, the front end contactor of the external load is closed, and the fuel cell starts to supply power to the external load.
As shown in fig. 3, the testing and assembling rack subsystem of the present embodiment includes a workbench 1a, a pressure adjustable pressing device 2a, and positioning guide rods 3a, the workbench is provided with a plate-type table 11a for supporting the pressure adjustable pressingdevice 2a and the fuel cell stack 1 to be assembled and tested, the pressure adjustable pressing device 2a is provided at one end of the table 11a, the fuel cell stack 1 is provided at the other end of the table 11a, the positioning guide rods 3a are four, the positioning guide rods 3a are vertically inserted through the front and rear end plates 41a, 42a of the fuel cell stack 1 along the axial direction, wherein the four positioning guide rods 3a are respectively provided at the left and right and bottom of the front and rear end plates 41a, 42a of the fuel cell stack 1 to be assembled and tested, the left and right positioning guide rods are provided for positioning guide rods, and the bottom two positioning rods are provided for positioning in addition, and the guide rod with smooth surface for supporting the fuel cell stack is also provided. The pressure-adjustable pressing device 2a is provided with a push rod 21a, and the push rod 21a pushes the rear end plate 42a of the fuel cell stack to perform pressing action in the direction of the front end plate 41a along the axial direction.
The pressure-adjustable pressing device 2a comprises a piston type cylinder 22a, a cylinder fixing front end plate 221a, a cylinder fixing rear end plate 222a, a push rod 21a, a fixing pull rod 23a and a connecting sleeve 24a, wherein the push rod 21a is an ejection mechanism connected with a cylinder piston, the fixing pull rod 23a axially penetrates through four corners of the cylinder fixing front and rear end plates 221a and 222a and is fixed, the connecting sleeve 24a sleeves the fixing pull rod 23a with a metal pull rod 43a of the fuel cell stack 1, and the push rod 21a pushes the rear end plate 42a of the fuel cell stack 1 to axially press the front end plate 41 a.
The front end plate 41a of the fuel cell stack 1 to be assembled and tested is centrally provided with a hydrogen inlet/outlet 411a, 411 ' a, an air inlet/outlet 412a, 412 ' a and a cooling water inlet/outlet 413a, 413 ' a.
In this embodiment, the fuel cell stack 1 is composed of a front end plate, a positive conductive current collecting mother plate, 100 single cells, a negative conductive current collecting mother plate, and a rear end plate. The height of the single cell is 206mm, and the width of the single cell is 206 mm. The assembly frame is provided with four positioning guide rods, two positioning guide rods (not shown) at the bottom and two positioning guide rods 3a at the left and right. Wherein the two fuel cell stacks are used for supporting the fuel cell stacks, and the surfaces of the two fuel cell stacks are made very smooth, so that the fuel cell stacks can slide when being compressed by the pressure of the compressing device; the distance between the left and the right positioning guide rods 3a is slightly wider than 206mm by 0.05-0.20mm, which is beneficial to the orderly assembly of each single cell.
The compressing device adopts a piston cylinder 2a, when the cylinder 22a is filled with air or nitrogen at six atmospheric pressures, the piston moves towards the rear end plate of the fuel cell stack, and the piston mandril 21a compresses the rear end plate 42 a. At this time, the three fluids on the front end plate 41a of the fuel cell stack 1 were piped out to directly perform the fuel cell stack operation test.
Claims (10)
1. A fuel cell testing system with self-supporting and power output functions is composed of the following six 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, (5) a fuel cell stack electric energy output subsystem, and (6) a fuel cell stack testing and assembling rack 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 stack and 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 second-stage 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 storage battery, a voltage regulating module, a first motor controller and a second motor controller, the first motor controller controls a high-pressure air blower which is started and runs, the second motor controller controls a cooling water circulating pump which is started and runs, and the fuel cell stack testing and assembling frame subsystem comprises a workbench, a pressure-adjustable pressing device and a positioning guide rod.
2. The fuel cell testing system with self-supporting and power outputting functions as claimed in claim 1, wherein the cooling water radiator is provided with a heat radiating fan.
3. The fuel cell testing system with self-supporting and power outputting functions as claimed in claim 1 or 2, further comprising a first contactor, a second contactor, and a third contactor, wherein the central controller controls the first contactor to control the opening and closing of the hydrogen supply solenoid valve, controls the second contactor to control the opening frequency and the discharge time of the hydrogen gas discharge solenoid valve, and controls the third contactor to control the opening and closing of the heat dissipation fan.
4. The fuel cell testing system with self-supporting and power outputting functions as claimed in claim 1, wherein the central controller controls the on/off of the high pressure blower, the cooling water circulating pump and the motor speed through the first motor controller and the second motor controller.
5. The fuel cell testing system with self-supporting and power outputting functions as claimed in claim 1, wherein the two-stage low pressure reducing valve is disposed between the hydrogen supply solenoid valve and the hydrogen humidifier.
6. The fuel cell testing system with self-supporting and power outputting functions as claimed in claim 1, wherein the hydrogen manual discharge stop valve is disposed on the hydrogen outlet pipe of the fuel cell stack and connected in parallel with the hydrogen steam-water separator.
7. The fuel cell testing system with self-supporting and power outputting functions as claimed in claim 1, wherein one end of the voltage regulating module is connected to the positive and negative electrodes of the fuel cell stack, and the other end is connected to the battery.
8. The fuel cell testing system with self-support and power output functions as claimed in claim 7, wherein the voltage regulating module is a bi-directional DC/DC voltage regulating module.
9. The fuel cell test system with self-support and power take-off functions as claimed in claim 7, wherein the battery is a 24V battery.
10. The fuel cell testing system with self-supporting and power outputting functions as claimed in claim 1, wherein the worktable has a plate-type table top for supporting the pressure adjustable pressing device and the fuel cell stack to be assembled and tested, the pressure adjustable pressing device is disposed at one end of the table top, the fuel cell stack is disposed at the other end of the table top, at least two positioning guide rods are disposed, the positioning guide rods are axially and vertically inserted into the front and rear end plates of the fuel cell stack, and the pressure adjustable pressing device has an ejector rod for pushing the rear end plate of the fuel cell stack to perform pressing action in the axial direction toward the front end plate.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420114361 CN2828835Y (en) | 2004-12-16 | 2004-12-16 | Testing system for fuel cell with self-support and power output function |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 200420114361 CN2828835Y (en) | 2004-12-16 | 2004-12-16 | Testing system for fuel cell with self-support and power output function |
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| CN2828835Y true CN2828835Y (en) | 2006-10-18 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102830359A (en) * | 2012-08-13 | 2012-12-19 | 宁波拜特测控技术有限公司 | Direct-methanol fuel cell testing system |
| CN103412263A (en) * | 2013-08-09 | 2013-11-27 | 超威电源有限公司 | Cell testing device |
-
2004
- 2004-12-16 CN CN 200420114361 patent/CN2828835Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102830359A (en) * | 2012-08-13 | 2012-12-19 | 宁波拜特测控技术有限公司 | Direct-methanol fuel cell testing system |
| CN103412263A (en) * | 2013-08-09 | 2013-11-27 | 超威电源有限公司 | Cell testing device |
| CN103412263B (en) * | 2013-08-09 | 2016-04-06 | 超威电源有限公司 | A kind of cell test unit |
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