CN113097543A - Hydrogen fuel cell short-circuit test testing device - Google Patents
Hydrogen fuel cell short-circuit test testing device Download PDFInfo
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- CN113097543A CN113097543A CN202110352379.2A CN202110352379A CN113097543A CN 113097543 A CN113097543 A CN 113097543A CN 202110352379 A CN202110352379 A CN 202110352379A CN 113097543 A CN113097543 A CN 113097543A
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- hydrogen
- short
- circuit test
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- fuel cell
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04298—Processes for controlling fuel cells or fuel cell systems
- H01M8/04313—Processes for controlling fuel cells or fuel cell systems characterised by the detection or assessment of variables; characterised by the detection or assessment of failure or abnormal function
- H01M8/0432—Temperature; Ambient temperature
- H01M8/04328—Temperature; Ambient temperature of anode reactants at the inlet or inside the fuel cell
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04298—Processes for controlling fuel cells or fuel cell systems
- H01M8/04313—Processes for controlling fuel cells or fuel cell systems characterised by the detection or assessment of variables; characterised by the detection or assessment of failure or abnormal function
- H01M8/0438—Pressure; Ambient pressure; Flow
- H01M8/04388—Pressure; Ambient pressure; Flow of anode reactants at the inlet or inside the fuel cell
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04298—Processes for controlling fuel cells or fuel cell systems
- H01M8/04694—Processes for controlling fuel cells or fuel cell systems characterised by variables to be controlled
- H01M8/04955—Shut-off or shut-down of fuel cells
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
Abstract
The invention provides a hydrogen fuel cell short-circuit test device, an air flow meter is connected to an air input end of a sample through a first pipeline, a short-circuit test bed is sequentially connected with a data acquisition mechanism and a data processing mechanism through leads, the short-circuit test bed is also connected to a positive electrode and a negative electrode of the sample through leads, a hydrogen storage mechanism is connected to a hydrogen input end of the sample through a second pipeline, a tail gas output mechanism is connected to a hydrogen output end of the sample through a third pipeline, the air flow meter and the hydrogen flow meter are respectively connected to a control mechanism through leads, and the air output end of the sample is directly connected with the atmosphere through a fourth pipeline. It is advantageous to prevent the hydrogen fuel cell from causing a serious accident due to the short-circuit current.
Description
Technical Field
The invention belongs to the field of hydrogen fuel cell testing, and particularly relates to a hydrogen fuel cell short-circuit test device.
Background
A hydrogen fuel cell is a complex device that directly converts chemical energy of hydrogen and oxygen into electrical energy through an electrochemical reaction, it has the characteristics of high power generation efficiency, no pollution and high specific energy, hydrogen is used as one of reaction gas sources of the fuel cell, due to the characteristics of flammability, explosiveness and the like, the thermal runaway hazard brought by the hydrogen fuel cell can attract the attention of broad scholars, wherein, the short circuit is one of the important reasons for triggering the thermal runaway of the hydrogen fuel cell, when the hydrogen fuel cell is in short circuit, a large short circuit current can be generated instantly, a large amount of heat can be gathered in the cell in a short time, the cell is easy to be damaged irreversibly and even cause the thermal runaway explosion, therefore, the short circuit condition of the hydrogen fuel cell is observed, the testing device can effectively prevent serious accidents of the battery caused by short-circuit current, and has great research significance for the development of the hydrogen fuel cell industry.
Disclosure of Invention
In view of the above, the present invention is directed to a testing apparatus for a short-circuit test of a hydrogen fuel cell, so as to prevent a serious accident caused by a short-circuit current.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
a hydrogen fuel cell short circuit test device comprises an air filter, an air flow meter, a hydrogen storage mechanism, a hydrogen pressure reducing valve, a hydrogen flow meter, an inlet hydrogen stop valve, an outlet hydrogen stop valve, a tail gas output mechanism, a short circuit test bed, a data acquisition mechanism, a data processing mechanism and a control mechanism, wherein the air flow meter is connected to the air input end of a sample through a first pipeline, the air filter is installed on the first pipeline, the short circuit test bed is sequentially connected with the data acquisition mechanism and the data processing mechanism through leads, the short circuit test bed is also connected to the anode and the cathode of the sample through leads, the hydrogen storage mechanism is connected to the hydrogen input end of the sample through a second pipeline, the hydrogen pressure reducing valve, the hydrogen flow meter and the inlet hydrogen stop valve are sequentially installed from the hydrogen storage mechanism to the hydrogen input end of the sample through a second pipeline, and the tail gas output mechanism is connected to the hydrogen, air flow meter and hydrogen flowmeter wire connection to control mechanism respectively, all independently set up between air flow meter, short circuit test platform, import hydrogen stop valve and the export hydrogen stop valve, and the air output end of sample is direct to be connected the atmosphere through the fourth tube coupling.
Furthermore, the circuit of the short-circuit test bed adopts an industrial short-circuit switch, an all-copper binding post and an internal copper bar for flow guiding.
Furthermore, the short circuit test bed adopts an embedded type fanless industrial controller.
Further, the data acquisition mechanism adopts a power analyzer.
Furthermore, the data processing mechanism comprises an integrated industrial personal computer, a display and an electric cabinet, and the industrial personal computer is respectively connected to the display and the electric cabinet through wires.
Further, the hydrogen storage mechanism is a hydrogen cylinder.
Further, the tail gas output mechanism is an exhaust fan.
Compared with the prior art, the hydrogen fuel cell short-circuit test device has the following beneficial effects:
(1) according to the hydrogen fuel cell short-circuit test device, the short-circuit conditions of the hydrogen fuel cell, including short-circuit voltage, short-circuit current, sample surface temperature, sample conditions after short circuit and the like, can be observed through the control mechanism, the data acquisition mechanism, the data processing mechanism and the short-circuit test bed, so that the problem of observation of the hydrogen fuel cell short-circuit test is solved, and the hydrogen fuel cell is favorable for preventing serious accidents caused by the short-circuit current.
(2) The invention relates to a hydrogen fuel cell short-circuit test testing device, wherein the short-circuit test bed adopts an embedded fanless industrial control machine, software is based on WINDOWS environment, short-circuit time can be accurately controlled, the short-circuit time is immediately disconnected after reaching a set value, the testing device has a good man-machine interaction interface, functions of collecting, displaying, storing, inquiring, printing and the like of test data can be realized, the testing device has functions of setting passwords by managers and operators, a data collecting mechanism can automatically record and store data information such as battery voltage, temperature, current and the like in the test process, a data processing mechanism can detect and collect various tested parameters in real time and respectively display data energy, automatically generate and record test reports and curves, displays the curves in real time in the test process, can be derived into pictures, Excel or Txt formats, and has excellent anti-interference capability, repeatability and reliability, the tail gas output mechanism is a hydrogen discharge mechanism and is used for discharging filtered hydrogen, the outlet hydrogen stop valve is used for closing and connecting a hydrogen branch, the air filter is used for filtering air entering the air branch, and the hydrogen storage mechanism is a hydrogen bottle and is used for storing high-pressure hydrogen.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic diagram of a hydrogen fuel cell short circuit test device according to an embodiment of the present invention.
Description of reference numerals:
1-an air filter; 2-an air flow meter; 3-a hydrogen storage mechanism; 4-a hydrogen pressure reducing valve; 5-a hydrogen flow meter; 6-inlet hydrogen pressure reducing valve; 7-sample; 8-outlet hydrogen pressure relief valve; 9-tail gas output mechanism; 10-short circuit test bed; 11-a data acquisition mechanism; 12-a data processing mechanism; 13-a power supply; 14-control mechanism.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
A hydrogen fuel cell short circuit test device includes: the hydrogen storage device comprises an air filter 1, an air flow meter 2, a hydrogen storage mechanism 3, a hydrogen pressure reducing valve 4, a hydrogen flow meter 5, an inlet hydrogen stop valve 6, an outlet hydrogen stop valve 8, a tail gas output mechanism 9, a short-circuit test bed 10, a data acquisition mechanism 11, a data processing mechanism 12 and a control mechanism 14, wherein the air flow meter 2 is connected to the air input end of a sample 7 through a first pipeline, the air filter 1 is installed on the first pipeline, the short-circuit test bed 10 is sequentially connected with the data acquisition mechanism 11 and the data processing mechanism 12 through leads, the connection relation between the short-circuit test bed 10 and the data acquisition mechanism 11 and between the short-circuit test bed 10 and the data processing mechanism 12 is electrically connected, the short-circuit test bed 10 is also connected to the positive and negative poles of the sample 7 through leads, the connection relation between the short-circuit test bed 10 and the positive and negative poles of the sample, and the second pipeline is sequentially provided with a hydrogen pressure reducing valve 4, a hydrogen flowmeter 5 and an inlet hydrogen stop valve 6 from the hydrogen storage mechanism 3 to the hydrogen input end of the sample 7, a tail gas output mechanism 9 is connected to the hydrogen output end of the sample 7 through a third pipeline, the air flowmeter 2 and the hydrogen flowmeter 5 are respectively connected to the control mechanism 14 through leads, the air flowmeter 2 and the hydrogen flowmeter 5 are respectively connected to the control mechanism 14 through signals, the air flowmeter 2, the short-circuit test bed 10, the inlet hydrogen stop valve 6 and the outlet hydrogen stop valve 8 are respectively and independently arranged, the air output end of the sample 7 is directly connected with the atmosphere through a fourth pipeline, the air flowmeter 2, the hydrogen flowmeter 5, the short-circuit test bed 10 and the control mechanism 14 are respectively connected to a power supply 13 through leads, and the power supply 13 is electrically connected with the air flowmeter 2, the hydrogen flowmeter 5, the short-circuit, the model of the air flow meter 2 and the hydrogen flow meter 5 is alicat KM3100, the model of the inlet hydrogen stop valve 6 and the model of the outlet hydrogen stop valve 8 are ball valves, the model is swagelok SS-43GS4, the model of the hydrogen pressure reducing valve 4 is a mechanical valve, the model is tescom 44-2260-242-009, the model of the control mechanism 14 is PLC, the model is SIMATIC S7-1200, the control mechanism 14 can respectively send signals to the hydrogen flow meter 5 and the air flow meter 2 according to the feedback of a hydrogen flow, an air flow and a hydrogen flow sensor and an air flow sensor selected by a user to meet the set requirements of controlling the hydrogen flow and the air flow, the air flow meter 2 is a variable air volume flow meter, the output air volume flow is changed under the instruction of the signal sent by the control mechanism 14, the short-circuit test bench 10 is mainly used for controlling the flow of the inlet hydrogen and the air to carry out the short-circuit test operation of the, the hydrogen fuel cell short circuit test device can observe the short circuit conditions of the hydrogen fuel cell, including short circuit voltage, short circuit current, sample surface temperature, sample conditions after short circuit and the like, solves the observation problem of the hydrogen fuel cell short circuit test, and is beneficial to preventing the hydrogen fuel cell from causing serious accidents due to the short circuit current.
The short-circuit test bed 10 adopts an embedded fanless industrial control machine, software is based on WINDOWS environment, short-circuit time can be accurately controlled, the short-circuit time is immediately disconnected after reaching a set value, a good man-machine interaction interface is provided, functions of test data acquisition, display, storage, inquiry, printing and the like can be realized, and the short-circuit test bed has password setting functions of administrators and operators;
the data acquisition mechanism 11 adopts a power analyzer, can acquire signals including 1 path of current, 16 paths of temperature (the temperature range is 0-1200 ℃) and 1 path of voltage (the range can be customized/100V), and the data acquisition mechanism 11 can automatically record and store data information such as battery voltage, temperature, current and the like in the test process;
the data processing mechanism 12 comprises an integrated industrial personal computer, a display and an electrical cabinet, the industrial personal computer is respectively connected to the display and the electrical cabinet through leads, the connection relationship between the industrial personal computer and the display and the connection relationship between the industrial personal computer and the electrical cabinet are signal connection, the electrical cabinet adopts a piano-type non-standard electrical cabinet, the industrial personal computer adopts an integrated fanless embedded FEBC-5220 original industrial personal computer, an Intel I5 CPU, an 8G memory and a 512G solid state hard disk, the display adopts a Dell 19 liquid crystal display, so that experimental operation is facilitated, the data processing mechanism 12 can detect and collect various tested parameters in real time and respectively display data energy, automatically generate and record a test report and a curve, the curve is displayed in real time in the test process, the curve can be derived into a picture, an Excel or Txt format, and has excellent anti-interference capability, excellent repeatability and;
the hydrogen storage mechanism 3 is a hydrogen cylinder and is used for storing high-pressure hydrogen;
the tail gas output mechanism 9 is an exhaust fan and is used for discharging filtered hydrogen, the outlet hydrogen stop valve 8 is used for closing and connecting a hydrogen branch, and the air filter 1 is used for filtering air entering the air branch;
the power supply 13 is a 220V low-voltage power supply, so that the normal operation of the test is ensured, and the power supply 13 is used for supplying power to the air flow meter 2, the hydrogen flow meter 5, the short-circuit test stand 10 and the control mechanism 14.
The working principle of the invention is as follows:
firstly, a worker sets a required hydrogen and air volume flow value in a control mechanism 14 according to a volume flow target value of hydrogen and air; then the worker manually opens the hydrogen storage mechanism 3 and the inlet hydrogen stop valve 6, the outlet hydrogen stop valve 8, the control device 14 timely adjusts the hydrogen flow meter 5 or the air flow meter 2 according to the test requirement, so that the volume flow of the hydrogen and the air entering the sample 7 reaches the target value set by the control mechanism 14, then the worker manually closes the inlet hydrogen stop valve 6 and the outlet hydrogen stop valve 8, the inlet hydrogen stop valve 6 and the outlet hydrogen stop valve 8 are used for retaining the hydrogen in the hydrogen path of the sample 7 (simulating the condition that the engine system interrupts the hydrogen supply after detecting a short circuit, but the hydrogen still exists in the path), the worker performs short circuit test operation on the sample 7 through the short circuit test bench 10, the operation time lasts 10s, the data acquisition mechanism 11 automatically records the values of the voltage and the current, the data processing mechanism 12 records the values of the voltage and the current recorded by the data acquisition mechanism 11, automatically generating and recording a test report and a curve, displaying the curve in real time to facilitate observation of a worker, observing the sample 7 by the worker for 1min, measuring the surface temperature of the sample 7 by the worker with a warm gun, recording the surface temperature of the sample 7, and stopping the test if the surface temperature of the sample 7 is abnormally increased; if the surface temperature of the sample 7 does not rise abnormally, a worker manually opens the inlet hydrogen stop valve 6 and the outlet hydrogen stop valve 8 to enable the sample 7 to be filled with hydrogen again, the short-circuit test operation is continued, the duration time is 60s, the data acquisition mechanism 11 automatically records the numerical values of voltage and current, the data processing mechanism 12 automatically generates and records a test report and a curve according to the numerical values of voltage and current recorded by the data acquisition mechanism 11, the curve is displayed in real time, the worker can observe the sample 7 conveniently, the worker continues to observe the sample 7, the observation time is 1min, the worker measures the surface temperature of the sample 7 again by using a thermometer and records the surface temperature of the sample 7, and if the surface temperature of the sample 7 rises abnormally, the test is terminated, and the test fails; if the surface temperature of the sample 7 does not rise abnormally, the experiment is ended, the data acquisition mechanism 11 automatically records the numerical values of the short-circuit voltage and the short-circuit current, the data processing mechanism 12 automatically generates and records the test report and the curve of the short-circuit voltage and the short-circuit current recorded by the data acquisition mechanism 11, the curve is displayed in real time, the curve can be derived into a picture, an Excel or Txt format, observation by a worker is facilitated, and the worker needs to record the surface temperature of the sample 7 displayed on the thermometer.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (7)
1. The utility model provides a hydrogen fuel cell short-circuit test testing arrangement which characterized in that: the hydrogen storage device comprises an air filter (1), an air flow meter (2), a hydrogen storage mechanism (3), a hydrogen pressure reducing valve (4), a hydrogen flow meter (5), an inlet hydrogen stop valve (6), an outlet hydrogen stop valve (8), a tail gas output mechanism (9), a short-circuit test bed (10), a data acquisition mechanism (11), a data processing mechanism (12) and a control mechanism (14), wherein the air flow meter (2) is connected to the air input end of a sample (7) through a first pipeline, the air filter (1) is installed on the first pipeline, the short-circuit test bed (10) is sequentially connected with the data acquisition mechanism (11) and the data processing mechanism (12) through leads, the short-circuit test bed (10) is also connected to the positive and negative electrodes of the sample (7) through leads, and the hydrogen storage mechanism (3) is connected to the hydrogen input end of the sample (, just the second pipeline is from installing hydrogen relief pressure valve (4) on the hydrogen input end of hydrogen storage mechanism (3) to sample (7) in proper order, hydrogen flowmeter (5), import hydrogen stop valve (6), tail gas output mechanism (9) are connected to the hydrogen output of sample (7) through the third tube coupling, air flowmeter (2) and hydrogen flowmeter (5) wire connection to control mechanism (14) respectively, air flowmeter (2), short-circuit test platform (10), all independent setting between import hydrogen stop valve (6) and the export hydrogen stop valve (8), the air output of sample (7) is direct to be connected the atmosphere through the fourth tube coupling.
2. A hydrogen fuel cell short-circuit test testing device according to claim 1, characterized in that: and the circuit of the short-circuit test bed (10) adopts an industrial-grade short-circuit switch, an all-copper binding post and an internal copper bar for diversion.
3. A hydrogen fuel cell short-circuit test testing device according to claim 1, characterized in that: the short circuit test bed (10) adopts an embedded type fanless industrial controller.
4. A hydrogen fuel cell short-circuit test testing device according to claim 1, characterized in that: the data acquisition mechanism (11) adopts a power analyzer.
5. A hydrogen fuel cell short-circuit test testing device according to claim 1, characterized in that: the data processing mechanism (12) comprises an integrated industrial personal computer, a display and an electric cabinet, and the industrial personal computer is respectively connected to the display and the electric cabinet through leads.
6. A hydrogen fuel cell short-circuit test testing device according to claim 1, characterized in that: the hydrogen storage mechanism (3) is a hydrogen cylinder.
7. A hydrogen fuel cell short-circuit test testing device according to claim 1, characterized in that: the tail gas output mechanism (9) is an exhaust fan.
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| CN202110352379.2A CN113097543A (en) | 2021-03-31 | 2021-03-31 | Hydrogen fuel cell short-circuit test testing device |
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| CN202110352379.2A CN113097543A (en) | 2021-03-31 | 2021-03-31 | Hydrogen fuel cell short-circuit test testing device |
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Cited By (1)
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