CN111896602A - Hydrogen quality detection device and detection method - Google Patents
Hydrogen quality detection device and detection method Download PDFInfo
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- CN111896602A CN111896602A CN202010911519.0A CN202010911519A CN111896602A CN 111896602 A CN111896602 A CN 111896602A CN 202010911519 A CN202010911519 A CN 202010911519A CN 111896602 A CN111896602 A CN 111896602A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
- G01N27/403—Cells and electrode assemblies
- G01N27/406—Cells and probes with solid electrolytes
- G01N27/407—Cells and probes with solid electrolytes for investigating or analysing gases
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
- G01N27/416—Systems
- G01N27/4163—Systems checking the operation of, or calibrating, the measuring apparatus
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
- G01N27/416—Systems
- G01N27/417—Systems using cells, i.e. more than one cell and probes with solid electrolytes
- G01N27/4175—Calibrating or checking the analyser
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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
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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
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Abstract
The invention discloses a hydrogen quality detection device and a detection method, which comprises a fuel cell, a control unit, a three-way valve, standard hydrogen (high-purity hydrogen) and a load. Wherein the hydrogen source to be measured and the standard hydrogen are connected with the fuel cell by a three-way valve. The system can be used for online real-time monitoring and spot check; detecting the hydrogen purity is directly related to the application requirement of the fuel cell, and the possibility of influence on the performance of the fuel cell due to the hydrogen purity is eliminated; the fuel cell can be a very small 1cm by 1cm single cell, even smaller, and the cost of the detection equipment can be very low; the detection device can be made into a fixed type or a portable type according to the requirement, and is flexible and convenient; the hydrogen pipeline to be detected is connected, so that the device can be started by one key, and the operation is simple and convenient; and the indicator light is used as a judging method, so that the method is simple and convenient.
Description
Technical Field
The invention belongs to hydrogen quality detection, is particularly suitable for the field of hydrogen monitoring for fuel cells, and particularly relates to a hydrogen quality detection device.
Background
Most of the existing hydrogen purity detection technologies adopt a gas chromatograph for analysis or an infrared analyzer for analyzing components of certain impurities in hydrogen, and the detection mode of the mode is expensive in equipment, complex in analysis, and high in inconvenience due to the fact that impurity gas standard gas is needed. There is certain limitation in fuel cell's extensive popularization and application, patent CN201280063909.0 adopts the mode that two galvanic piles tested simultaneously, hydrogen that awaits measuring is led to one galvanic pile, another galvanic pile leads to standard hydrogen and does the reference test, need dispose standard hydrogen and standard air simultaneously and do the contrast, this mode can be used to hydrogen quality testing for fuel cell, but it is more loaded down with trivial details in setting up, it is not too realistic in practical application, and two fuel cell itself allow to have certain difference, it may lead to the performance difference great because of the difference between the two to do another reference, lead to judging the error because of the error.
The invention designs a hydrogen quality detection device which is used for detecting the quality of hydrogen on line or off line, solves the problems of complicated operation mode and expensive detection equipment caused by the conventional sampling and monitoring method for analyzing gas components by using a conventional gas chromatograph and the like, can monitor the quality of the hydrogen in real time or detect the hydrogen off line according to the requirement, and avoids the influence on the performance and the long service life of a galvanic pile caused by the fact that the hydrogen used for generating electricity by a fuel cell does not meet the requirement. The quality of the hydrogen can be detected by designing one fuel cell to be switched between standard hydrogen and hydrogen to be detected, so that larger errors and possible misjudgments caused by different hydrogen passing through two fuel cell devices in the patent CN201280063909.0 are avoided.
To solve the problems in the related art, no effective solution has been proposed, and therefore, a hydrogen quality detection apparatus is proposed.
Disclosure of Invention
Technical scheme
In order to achieve the purpose, the invention provides the following technical scheme: a hydrogen quality detection device comprises a fuel cell, a control unit, a three-way valve, standard hydrogen (high-purity hydrogen) and a load, wherein a hydrogen source to be detected and the standard hydrogen are connected with the fuel cell through the three-way valve.
In a further improvement, the fuel cell can be a single cell or a plurality of cells, the minimum effective active area can be 1cm2 or less, and the electrochemical reaction of the fuel cell needs heat dissipation and can be an air cooling mode or a water cooling mode.
In a further improvement, the three-way valve is explosion-proof, can be a manual valve, and also can be an electric control valve or a secondary control valve, before detecting the hydrogen to be detected, firstly using standard hydrogen to test under set conditions, recording and memorizing the test data of the standard hydrogen by a control unit, manually or automatically setting the test data as reference data, then automatically or manually adjusting a three-way valve, closing the standard hydrogen, starting a hydrogen source to be detected, the test is carried out under the same setting condition, when the voltage of the fuel cell is lower than a certain value under the same current, the quality of the hydrogen can not meet the requirement (the content of impurity sulfide or CO and the like is more than a certain value), the three-way valve is automatically or manually adjusted to one side of the standard hydrogen, and (4) performing recovery test on the fuel cell, calibrating again, and when the detection is finished, closing the fuel cell by the control unit, closing the three valves and removing the hydrogen pipeline.
In a further improvement, the standard hydrogen (high-purity hydrogen) can be used as a portable device for storing metal hydrogen to release hydrogen, and a fixed detection device can be provided with a standard hydrogen cylinder or metal hydrogen to release hydrogen.
In a further improvement, the control unit has a data acquisition module and data storage and memory functions, and meanwhile, judges and executes instructions according to data comparison and analysis, and controls the three-way valve and the load or the indicator light.
In a further improvement, the load, which is used for consuming the fuel cell to generate electricity in the device, may be a resistor or an indicator light, and when the load is an indicator light, the load may be displayed in different colors by different powers, such as a normal power range of a certain indicator color a, an abnormal power range of a certain indicator color B, and a critical range between the normal power and the abnormal power of a certain indicator color C.
A hydrogen quality detection method, the gas to be measured is introduced for testing, 1, if the indicator light is A color, the hydrogen quality is normal, and the hydrogen quality is normally carried out according to the plan;
2. if the indicator light is B color, which indicates that the hydrogen quality has problems, switching to high-purity hydrogen immediately to recover the calibration, if the high-purity hydrogen is tested normally, switching to the hydrogen to be tested again, otherwise, stopping the machine for inspection;
3. if the indicator light is in the color C, the quality of the hydrogen is between the normal quality, uncertainty exists, testing and observing are carried out for a period of time, if the indicator light continues to be in the color B or the color C, the indicator light is switched to high-purity hydrogen for recovering calibration, the calibration is carried out according to the logic in the step 2, and if the indicator light is changed into the color A, the rest is carried out according to the plan.
(III) advantageous effects
Compared with the prior art, the invention provides a novel photodecomposition purification smoke exhaust hood, which has the following beneficial effects: the system can be used for online real-time monitoring and spot check; detecting the hydrogen purity is directly related to the application requirement of the fuel cell, and the possibility of influence on the performance of the fuel cell due to the hydrogen purity is eliminated; the fuel cell can be a very small 1cm by 1cm single cell, even smaller, and the cost of the detection equipment can be very low; the detection device can be made into a fixed type or a portable type according to the requirement, and is flexible and convenient; the hydrogen pipeline to be detected is connected, so that the device can be started by one key, and the operation is simple and convenient; and the indicator light is used as a judging method, so that the method is simple and convenient.
Drawings
FIG. 1: a schematic diagram of a hydrogen purity detection device (a three-way valve is manually controlled);
FIG. 2: a schematic diagram of a hydrogen quality detection device (a three-way valve is an automatic control valve);
FIG. 3: a control unit functional architecture diagram;
FIG. 4 is a control logic diagram.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The utility model provides a technical scheme: a hydrogen quality detection device comprises a fuel cell, a control unit, a three-way valve, standard hydrogen (high-purity hydrogen) and a load, wherein a hydrogen source to be detected and the standard hydrogen are connected with the fuel cell through the three-way valve.
Preferably, the fuel cell can be a single cell or a plurality of cells, the minimum effective active area can be 1cm2 or less, and the electrochemical reaction of the fuel cell needs heat dissipation and can be air cooling or water cooling.
Preferably, the three-way valve is explosion-proof, can be a manual valve, and can also be an electric control valve or a secondary control valve, before detecting the hydrogen to be detected, firstly using standard hydrogen to test under set conditions, recording and memorizing the test data of the standard hydrogen by a control unit, manually or automatically setting the test data as reference data, then automatically or manually adjusting a three-way valve, closing the standard hydrogen, starting a hydrogen source to be detected, the test is carried out under the same setting condition, when the voltage of the fuel cell is lower than a certain value under the same current, the quality of the hydrogen can not meet the requirement (the content of impurity sulfide or CO and the like is more than a certain value), the three-way valve is automatically or manually adjusted to one side of the standard hydrogen, and (4) performing recovery test on the fuel cell, calibrating again, and when the detection is finished, closing the fuel cell by the control unit, closing the three valves and removing the hydrogen pipeline.
Preferably, the standard hydrogen (high-purity hydrogen) can be metal hydrogen storage to release hydrogen as a portable device, and a standard hydrogen cylinder or metal hydrogen storage to release hydrogen can be configured as a fixed detection device.
Preferably, the control unit has a data acquisition module and data storage and memory functions, and meanwhile, judges and executes instructions according to data comparison and analysis, and controls the three-way valve and the load or the indicator light.
Preferably, the load in the device for consuming the fuel cell to generate electricity, may be a resistor or an indicator light, and when the load is an indicator light, the load may be displayed in different colors by different powers, such as a normal power range of a certain indicator color a, an abnormal power range of a certain indicator color B, and a critical range between the normal power and the abnormal power of a certain indicator color C.
A in the quality detection method of hydrogen, inject the gas to be measured and test, 1. if the pilot lamp is A color, show that the hydrogen quality is normal, go on normally according to planning;
2. if the indicator light is B color, which indicates that the hydrogen quality has problems, switching to high-purity hydrogen immediately to recover the calibration, if the high-purity hydrogen is tested normally, switching to the hydrogen to be tested again, otherwise, stopping the machine for inspection;
3. if the indicator light is in the color C, the quality of the hydrogen is between the normal quality, uncertainty exists, testing and observing are carried out for a period of time, if the indicator light continues to be in the color B or the color C, the indicator light is switched to high-purity hydrogen for recovering calibration, the calibration is carried out according to the logic in the step 2, and if the indicator light is changed into the color A, the rest is carried out according to the plan.
Example 1 illustrates that: the hydrogen detection device adopts a three-way electromagnetic valve, according to a normal flow, when one hydrogen quality is detected, a gas source pipeline and a one-key starting device are connected, a three-way valve is opened to standard hydrogen for calibration test, the calibration test is carried out for 5 minutes or more, a control unit records and memorizes data, an indicator lamp displays an A color, the three-way valve is automatically switched to one end of the hydrogen to be detected, the control unit processes and judges the test data, and if the hydrogen quality is normal, the indicator lamp displays the A color; if the hydrogen quality is abnormal, the indicator light displays the color B, and the three-way valve automatically turns to the standard hydrogen end to recover and calibrate the fuel cell; and if the indicator lamp is in the color C for a certain time, the three-way valve automatically turns to the standard hydrogen end to recover and calibrate the fuel cell after the indicator lamp lasts for a certain time.
Example 2 illustrates that: the hydrogen detection device adopts a three-way electromagnetic valve, according to a normal flow, when one hydrogen quality is detected, a gas source pipeline and a one-key starting device are connected, the three-way valve is manually started to lead to standard hydrogen for calibration test, the stable test is carried out for 5 minutes or more, a control unit records and memorizes data, an indicator lamp displays the color A, the three-way valve is manually switched to one end of the hydrogen to be detected, the control unit processes and judges the test data, and if the hydrogen quality is normal, the indicator lamp displays the color A; if the hydrogen quality is abnormal, the indicator lamp displays the color B, and the three-way valve is manually switched to the standard hydrogen end to recover and calibrate the fuel cell; and if the indicator lamp is in the color C for a certain time, the indicator lamp manually switches the three-way valve to the standard hydrogen end after the indicator lamp lasts for a certain time to recover and calibrate the fuel cell.
Example 3 illustrates that: the hydrogen detection device adopts a three-way electromagnetic valve, according to a normal flow, when one hydrogen quality is detected, a gas source pipeline and a one-key starting device are connected, the three-way valve is opened to standard hydrogen for calibration test, the stable test is carried out for 5 minutes or more, a control unit records and memorizes data, a display screen displays that the voltage data is normal, the three-way valve is automatically switched to one end of the hydrogen to be detected, the control unit processes and judges the test data, and if the hydrogen quality is normal, the display screen displays that the voltage is normal; if the hydrogen quality is abnormal, the display screen displays that the voltage is too low, and the three-way valve automatically turns to a standard hydrogen end to recover and calibrate the fuel cell; if the voltage support is at a critical value, the indicator light automatically turns to the standard hydrogen end to recover and calibrate the fuel cell after a certain time.
The electrical components presented in the document are electrically connected to an external master controller and 220V commercial power, and the master controller can be a conventional known device controlled by a computer or the like.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. A hydrogen quality detection device comprises a fuel cell, a control unit, a three-way valve, standard hydrogen (high-purity hydrogen) and a load, wherein a hydrogen source to be detected and the standard hydrogen are connected with the fuel cell through the three-way valve.
2. A hydrogen quality detecting apparatus according to claim 1, wherein: the fuel cell can be a single cell or a plurality of cells, the minimum effective active area can be 1cm2 or less, the electrochemical reaction of the fuel cell needs heat dissipation, and the fuel cell can be in an air cooling mode or a water cooling mode.
3. A hydrogen quality detecting apparatus according to claim 1, wherein: the three-way valve is explosion-proof, can be a manual valve, can also be an electric control valve or a magnetic control valve, before the hydrogen to be detected is detected, a standard hydrogen is firstly used for testing under a set condition, the control unit records and memorizes the test data of the standard hydrogen, the reference data is manually or automatically set, then the three-way valve is automatically or manually adjusted, the standard hydrogen is closed, a hydrogen source to be detected is started, the test is carried out under the same set condition, when the voltage of the fuel cell is lower than a certain value under the same current, the hydrogen quality can not meet the requirement (the content of impurity sulfide or CO and the like is more than a certain value), the three-way valve is automatically or manually adjusted to one side of the standard hydrogen, the fuel cell is subjected to recovery test and is calibrated again, when the detection is finished, the fuel cell is closed by the control unit, the three-way valve is closed, and the hydrogen.
4. A hydrogen quality detecting apparatus according to claim 1, wherein: the standard hydrogen (high-purity hydrogen) can be used as a portable device for storing metal hydrogen to release hydrogen, and can be used as a fixed detection device for configuring a standard hydrogen cylinder or storing metal hydrogen to release hydrogen.
5. A hydrogen quality detecting apparatus according to claim 1, wherein: the control unit has a data acquisition module and data storage and memory functions, and meanwhile, judges and executes instructions according to data comparison and analysis, and controls the three-way valve, the load and the indicator lamp.
6. A hydrogen quality detecting apparatus according to claim 1, wherein: the load, which is used for consuming the fuel cell to generate electricity in the device, may be a resistor or an indicator light, and when the load is a certain indicator light, it may be displayed in different colors by different powers, such as a normal power range of a certain indicator color a, an abnormal power range of a certain indicator color B, and a critical range between the normal power and the abnormal power of a certain indicator color C.
7. The method of claim 1, wherein: testing by introducing gas to be tested, (1) if the indicator light is A color, the quality of hydrogen is normal, and the test is normally carried out according to a plan;
(2) if the indicator light is B color, which indicates that the hydrogen quality has problems, switching to high-purity hydrogen immediately to recover the calibration, if the high-purity hydrogen is tested normally, switching to the hydrogen to be tested again, otherwise, stopping the machine for inspection;
(3) if the indicator light is in the color C, the quality of the hydrogen is between the normal quality, uncertainty exists, testing and observing are firstly carried out for a period of time, if the indicator light continues to be in the color B or the color C, the indicator light is switched to high-purity hydrogen for restoring calibration, the calibration is carried out according to the logic in the step 2, and if the indicator light is changed into the color A, the calibration is carried out according to a plan.
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| CN202010911519.0A CN111896602A (en) | 2020-09-02 | 2020-09-02 | Hydrogen quality detection device and detection method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114792828A (en) * | 2022-05-14 | 2022-07-26 | 北京亿华通科技股份有限公司 | Method for monitoring hydrogen purity of fuel cell hydrogen system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114792828A (en) * | 2022-05-14 | 2022-07-26 | 北京亿华通科技股份有限公司 | Method for monitoring hydrogen purity of fuel cell hydrogen system |
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