CN112201811A - Vehicle-mounted hydrogen storage system device and control method thereof - Google Patents
Vehicle-mounted hydrogen storage system device and control method thereof Download PDFInfo
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- 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
- H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
- H01M8/04201—Reactant storage and supply, e.g. means for feeding, pipes
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- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
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- B60—VEHICLES IN GENERAL
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- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/30—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling fuel cells
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- H01M8/00—Fuel cells; Manufacture thereof
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- 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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- 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
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- 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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- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/40—Application of hydrogen technology to transportation, e.g. using fuel cells
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Abstract
The invention provides a vehicle-mounted hydrogen storage system device and a control method thereof, wherein the vehicle-mounted hydrogen storage system device comprises a hydrogen storage module and a purging module, and the purging module is used for blowing out hydrogen leaked in the hydrogen storage module; the vehicle-mounted hydrogen storage system device further comprises a detection module and a control module, wherein the detection module is electrically connected with the hydrogen storage module and used for detecting the hydrogen concentration in the hydrogen storage module, and the control module is respectively electrically connected with the detection module and the purging module and used for receiving a feedback signal of the detection module and controlling the gas purging amount of the purging module. The control method comprises the following steps: and the control module controls the gas purging amount of the purging module according to the hydrogen concentration in the hydrogen storage module detected by the detection module, so that the hydrogen concentration in the hydrogen storage module meets the requirement. According to the invention, the detection module, the control module and the purging module are arranged, and the hydrogen leaked in the hydrogen storage module is treated and discharged through detection, regulation and control, so that the danger of explosion caused by hydrogen accumulation is avoided.
Description
Technical Field
The invention belongs to the technical field of fuel cells, relates to a vehicle-mounted hydrogen storage system, and particularly relates to a vehicle-mounted hydrogen storage system device and a control method thereof.
Background
The fuel cell is a device which uses hydrogen gas and the like as fuel and generates electric energy through chemical reaction with oxygen, and the byproduct is only water, so that the fuel cell has the advantages of zero emission, high efficiency, high starting speed, low-temperature operation and the like. Therefore, the fuel cell has wide application field, and can be used as a power supply to be applied to the fields of automobiles, spaceflight, unmanned aerial vehicles and the like.
The fuel cell automobile is essentially a zero-emission automobile, reduces the emission of greenhouse gases and the dependence on petroleum resources compared with the traditional automobile, and has better performance than other batteries. The fuel cell automobile has the characteristics of smooth running, low noise and the like, and in addition, the fuel cell belongs to a static energy conversion device and has no other moving parts except an air compressor and a cooling system. Fuel cell hydrogen safety is of great importance to the fuel cell automotive industry promotion, where it is clearly required to install a hydrogen leak sensor in an on-board hydrogen storage system.
In the prior art, the main concern is how to prevent hydrogen leakage, a hydrogen leakage detection method or a hydrogen leakage detection device, and the treatment measures after hydrogen leakage are blank in the industry.
CN111169288A discloses a method and a device for detecting hydrogen leakage of a vehicle-mounted hydrogen supply system, and a fuel cell vehicle, wherein the method comprises: determining a detection time period according to the working condition of the fuel cell vehicle, acquiring the hydrogen leakage quality of the vehicle-mounted hydrogen supply system in the detection time period, and calculating the hydrogen leakage rate according to the hydrogen leakage quality and the detection time period, thereby judging the hydrogen leakage condition of the vehicle-mounted hydrogen supply system. The method can realize quantitative detection of hydrogen leakage of the fuel vehicle-mounted hydrogen supply system by calculating the hydrogen leakage rate, improve the accuracy and timeliness of hydrogen leakage detection, and solve the problems of potential safety hazard and waste caused by hydrogen leakage. However, it only detects the hydrogen leakage of the vehicle-mounted hydrogen supply system and does not effectively treat the leaked hydrogen.
CN108679437A discloses a leak-proof hydrogen tank for a hydrogen powered vehicle, which comprises a hydrogen tank inner layer, a hydrogen tank outer layer, and a solid hydrogen storage material arranged between the hydrogen tank inner layer and the hydrogen tank outer layer, and further comprises a hydrogen leak detection device and a data receiving and processing system, wherein the hydrogen leak detection device is used for detecting whether leaked hydrogen exists between the hydrogen tank inner layer and the hydrogen tank outer layer, and the solid hydrogen storage material is used for absorbing hydrogen leak which may be generated. Although it absorbs the leaked hydrogen through the solid hydrogen storage material, there is still a problem how to handle after the absorption saturation.
CN110567658A discloses a hydrogen leakage detection device for hydrogen energy vehicle, comprising: the system comprises a hydrogen fuel cell reactor, a flow sensor, a monitoring controller, a hydrogen bottle, a hydrogen supply pipeline and a user reminding device; be equipped with pressure sensor and temperature sensor on the hydrogen bottle, and two sensors all are connected with the monitoring control ware, and the detection controller is according to the pressure and the temperature of acquireing, acquires the detected value to compare with the threshold value of predetermineeing, and then judge whether there is hydrogen to reveal. The invention can effectively detect the hydrogen leakage of the hydrogen energy automobile and remind a user in time, and in addition, the monitoring result is not influenced by temperature change. It still has a problem that the leaked hydrogen gas is not treated.
Although the existing vehicle-mounted hydrogen storage system device is provided with the hydrogen concentration detection device, the leaked hydrogen is not effectively processed, so that how to ensure that the vehicle-mounted hydrogen storage system device can monitor the leaked hydrogen in real time and process the leaked hydrogen, and dangers such as explosion caused by hydrogen aggregation are avoided.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a vehicle-mounted hydrogen storage system device and a control method thereof.
In order to achieve the purpose, the invention adopts the following technical scheme:
in a first aspect, the invention provides a vehicle-mounted hydrogen storage system device, which comprises a hydrogen storage module and a purging module, wherein the purging module is used for blowing out hydrogen leaked in the hydrogen storage module.
As a preferable technical scheme of the invention, the vehicle-mounted hydrogen storage system device further comprises a detection module and a control module.
The detection module is electrically connected with the hydrogen storage module and used for detecting the hydrogen concentration in the hydrogen storage module.
The control module is respectively and electrically connected with the detection module and the purging module, and the control module is used for receiving a feedback signal of the detection module and controlling the gas purging amount of the purging module.
The invention carries out purging and discharging on the hydrogen leaked out of the hydrogen storage module by arranging the purging module, avoids the danger caused by hydrogen aggregation, also detects the concentration of the leaked hydrogen in the hydrogen storage module in real time by arranging the detection module, sends a feedback signal to the control module, regulates and controls the amount of the purging gas of the purging module by logic calculation, detects the hydrogen leakage condition in the hydrogen storage module in real time, and adopts a corresponding processing mode according to the concentration of the hydrogen.
As a preferable technical scheme of the invention, the hydrogen storage module comprises a shell, and a purge gas outlet and a purge gas inlet are formed in the shell.
Preferably, the housing is provided with a hydrogen storage tank, and the detection module is used for detecting the concentration of hydrogen leaked from the hydrogen storage tank in the housing space.
It should be noted that the present invention provides two structures of purge modules, where the two structures of purge modules include:
the hydrogen storage module comprises a hydrogen storage module, a sweeping module and an exhaust fan, wherein the sweeping module is arranged at the position of a sweeping gas outlet, and the hydrogen storage module is arranged in the hydrogen storage module.
The working mode of the purging module provided by the invention is that leaked hydrogen is discharged out of the hydrogen storage module through the airflow generated by the exhaust fan, so that hydrogen aggregation is avoided, and the output power of the exhaust fan can be regulated and controlled through the control module, so that the air volume of the purging air is regulated.
Its two, the module that sweeps include the air compressor machine and the intercooler that connect gradually along the direction of admitting air, the intercooler pass through the purge gas pipeline and be connected with hydrogen storage module, the exit end of purge gas pipeline insert the purge gas import, the purge gas pipeline on be provided with the governing valve with control module electric connection.
The structure of the optional purge module may be either of the two or a combination of the two.
It should be noted that, the fuel cell vehicles all include an air compressor and a intercooler for providing cooling air to the fuel cells, i.e. the purge gas in the purge module of the present invention can utilize the air entering the fuel cell, and has the characteristics of low temperature, high air volume, etc. the safety performance of the vehicle-mounted hydrogen storage system device is further enhanced by adopting the purge mode.
According to the invention, the hydrogen leaked in the hydrogen storage module is purged by utilizing cooling air, and the air volume of the purge air is adjusted by adjusting the opening of the adjusting valve.
The detection module is a concentration sensor.
In a second aspect, the present invention provides a control method using the above vehicle-mounted hydrogen storage system apparatus, the control method including:
and the control module controls the gas purging amount of the purging module according to the hydrogen concentration in the hydrogen storage module detected by the detection module, so that the hydrogen concentration in the hydrogen storage module meets the requirement.
As a preferred technical solution of the present invention, the control method specifically includes:
s100, the detection module acquires the concentration of hydrogen leaked from the hydrogen storage tank in the shell space, and the step S101 is executed;
s101, the control module judges whether the hydrogen concentration in the shell space is greater than 0 according to the acquired hydrogen concentration, and if the judgment result is yes, the step S202 is executed; if the judgment result is negative, the step S201 is entered;
s201, keeping the purging module in a closed state, and entering a step S400;
s202, the control module judges whether the hydrogen concentration in the shell space is higher than a concentration threshold value according to the acquired hydrogen concentration, and if the judgment result is yes, the step S301 is executed; if the judgment result is negative, the step S302 is entered;
s301, stopping power supply, turning off the power supply, and entering the step S400;
s302, the control module adjusts and controls the gas purging amount of the purging module according to the hydrogen concentration, and the step S400 is started;
s400, the hydrogen concentration in the shell space meets the requirement, and the process is ended.
The invention detects the concentration of hydrogen leaked from the hydrogen storage tank in the hydrogen storage module through the detection module, and when the hydrogen is not detected, the purging module is in a closed state; when hydrogen is detected, the control module compares the hydrogen concentration with a concentration threshold value, when the hydrogen concentration is lower than the concentration threshold value, the blowing air volume of the blowing module is reasonably regulated and controlled according to the hydrogen concentration, so that the hydrogen concentration in the hydrogen storage module is continuously kept in a required concentration range, and when the hydrogen concentration is higher than the concentration threshold value, the hydrogen storage module is shut down and powered off, and the power supply is turned off.
With the purging module provided by one of the above, in step S201, the purging module is kept in the off state, that is, the exhaust fan is kept in the off state.
Preferably, in step S302, the adjusting of the gas purging amount of the control purging module is to adjust the output power of the exhaust fan.
With the purge modules provided by the two methods, in step S201, the purge module is kept in a closed state, i.e., the regulating valve is kept in a closed state.
Preferably, in step S302, the adjusting of the gas purging amount of the purge control module is to adjust the opening degree of the regulating valve.
By adopting the combination of the purge modules provided by one of the two methods, in step S201, the purge module is kept in a closed state, namely the regulating valve and the exhaust fan are both kept in a closed state, and in step S302, the gas purge amount of the purge module is regulated and controlled in a manner of regulating the opening degree of the regulating valve and the output power of the exhaust fan at the same time.
Preferably, the concentration threshold is 4% hydrogen volume concentration.
Compared with the prior art, the invention has the beneficial effects that:
in addition, the invention utilizes the detection module to detect the concentration of the leaked air and sends a feedback signal to the control module, the control module judges and regulates the air quantity of the blowing gas in the blowing module, and the hydrogen leaked in the hydrogen storage module is further treated and discharged by detecting and regulating, so that the danger of explosion caused by hydrogen aggregation is avoided.
Drawings
FIG. 1 is a schematic structural diagram of a vehicular hydrogen storage system apparatus provided in embodiment 1 of the present invention;
FIG. 2 is a control flowchart of the on-board hydrogen storage system apparatus provided in embodiment 1 of the present invention;
FIG. 3 is a schematic structural diagram of a vehicular hydrogen storage system apparatus provided in embodiment 2 of the present invention;
FIG. 4 is a control flowchart of an on-board hydrogen storage system apparatus provided in embodiment 2 of the present invention;
FIG. 5 is a schematic structural diagram of an on-board hydrogen storage system apparatus provided in embodiment 3 of the present invention;
fig. 6 is a control flowchart of the on-vehicle hydrogen storage system device provided in embodiment 3 of the present invention.
Wherein, 1-concentration sensor; 2-an exhaust fan; 3-a hydrogen storage tank; 4, an air compressor; 5-an intercooler; 6-adjusting the valve; 7-purge gas outlet.
Detailed Description
It is to be understood that in the description of the present invention, the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., 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 device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be taken as limiting the present invention.
It should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "disposed," "connected" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; 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 technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.
In one embodiment, the invention provides an on-board hydrogen storage system device, which comprises a hydrogen storage module and a purging module, wherein the purging module is used for blowing out leaked hydrogen in the hydrogen storage module.
The vehicle-mounted hydrogen storage system device also comprises a concentration sensor 1 and a control module, wherein the concentration sensor 1 is electrically connected with the hydrogen storage module and is used for detecting the hydrogen concentration in the hydrogen storage module; the control module is respectively and electrically connected with the concentration sensor 1 and the purging module, and the control module is used for receiving a feedback signal of the concentration sensor 1 and controlling the gas purging amount of the purging module.
The hydrogen storage module comprises a shell, a purge gas outlet 7 and a purge gas inlet are formed in the shell, a hydrogen storage tank 3 is arranged in the shell, and a concentration sensor 1 is used for detecting the hydrogen concentration leaked from the hydrogen storage tank 3 in the shell space.
The invention provides two structures of purging modules, which comprise:
the hydrogen storage module comprises a hydrogen storage module, a sweeping module and an exhaust fan 2, wherein the sweeping module is the exhaust fan 2, the exhaust fan 2 is arranged at a sweeping air outlet 7, and hydrogen leaked in the hydrogen storage module is discharged by utilizing air flow generated by the exhaust fan 2.
The purging module comprises an air compressor 4 and an intercooler 5 which are sequentially connected along the air inlet direction, the intercooler 5 is connected with the hydrogen storage module through a purging gas pipeline, and the outlet end of the purging gas pipeline is connected to a purging gas inlet; and the purge gas pipeline is provided with a regulating valve 6 electrically connected with the control module.
The combination of the first blowing module and the second blowing module is characterized in that the blowing module comprises an air compressor 4 and an intercooler 5 which are sequentially connected along the air inlet direction, the intercooler 5 is connected with the hydrogen storage module through a blowing gas pipeline, and the outlet end of the blowing gas pipeline is connected to a blowing gas inlet; the purge gas pipeline is provided with a regulating valve 6 electrically connected with the control module, and further comprises an exhaust fan 2 arranged at a purge gas outlet 7.
In another embodiment, the present invention provides a control method using the above onboard hydrogen storage system, wherein the control method specifically includes:
s100, the detection module acquires the concentration of hydrogen leaked from the hydrogen storage tank 3 in the shell space, and the step S101 is executed;
s101, the control module judges whether the hydrogen concentration in the shell space is greater than 0 according to the acquired hydrogen concentration, and if the judgment result is yes, the step S202 is executed; if the judgment result is negative, the step S201 is entered;
s201, keeping the purging module in a closed state, and entering a step S400;
s202, the control module judges whether the hydrogen concentration in the shell space is higher than a concentration threshold value according to the acquired hydrogen concentration, and if the judgment result is yes, the step S301 is executed; if the judgment result is negative, the step S302 is entered;
s301, stopping power supply, turning off the power supply, and entering the step S400;
s302, the control module adjusts and controls the gas purging amount of the purging module according to the hydrogen concentration, and the step S400 is started;
s400, the hydrogen concentration in the shell space meets the requirement, and the process is ended.
Wherein the concentration threshold is 4% hydrogen volume concentration.
Purging by using one of the purging modules, wherein in step S201, the purging module is kept in a closed state, that is, the exhaust fan 2 is kept in a closed state; in step S302, the adjustment of the gas purge amount of the control purge module is to adjust the output power of the exhaust fan 2.
Purging by adopting the purging module provided by the second step, wherein in step S201, the purging module is kept in a closed state, namely the regulating valve 6 is kept in a closed state; in step S302, the adjustment of the gas purge amount of the purge control module is performed by adjusting the opening degree of the regulating valve 6.
By adopting the combination of the purge modules provided by one of the two methods, in step S201, the purge module is kept in a closed state, namely the regulating valve 6 and the exhaust fan 2 are both kept in a closed state, and in step S302, the gas purge amount of the purge module is regulated and controlled in a manner of regulating the opening degree of the regulating valve 6 and the output power of the exhaust fan 2 at the same time.
Example 1
The embodiment provides a vehicle-mounted hydrogen storage system device, as shown in fig. 1, the vehicle-mounted hydrogen storage system device includes a hydrogen storage module and a purging module, and the purging module is used for blowing out hydrogen leaked in the hydrogen storage module.
The vehicle-mounted hydrogen storage system device also comprises a concentration sensor 1 and a control module, wherein the concentration sensor 1 is electrically connected with the hydrogen storage module and is used for detecting the hydrogen concentration in the hydrogen storage module; the control module is respectively and electrically connected with the concentration sensor 1 and the purging module, and the control module is used for receiving a feedback signal of the concentration sensor 1 and controlling the gas purging amount of the purging module.
The hydrogen storage module comprises a shell, a purge gas outlet 7 and a purge gas inlet are formed in the shell, a hydrogen storage tank 3 is arranged in the shell, and a concentration sensor 1 is used for detecting the hydrogen concentration leaked from the hydrogen storage tank 3 in the shell space.
The purging module is an exhaust fan 2, the exhaust fan 2 is arranged at a purging gas outlet 7, and the hydrogen leaked in the hydrogen storage module is discharged by utilizing the airflow generated by the exhaust fan 2.
The embodiment also provides a control method using the vehicle-mounted hydrogen storage system device, as shown in fig. 2, the control method specifically includes:
s100, the detection module acquires the concentration of hydrogen leaked from the hydrogen storage tank 3 in the shell space, and the step S101 is executed;
s101, the control module judges whether the hydrogen concentration in the shell space is greater than 0 according to the acquired hydrogen concentration, and if the judgment result is yes, the step S202 is executed; if the judgment result is negative, the step S201 is entered;
s201, the exhaust fan 2 is kept in the off state, and the process proceeds to step S400;
s202, the control module judges whether the hydrogen concentration in the shell space is higher than a concentration threshold value according to the acquired hydrogen concentration, and if the judgment result is yes, the step S301 is executed; if the judgment result is negative, the step S302 is entered;
s301, stopping power supply, turning off the power supply, and entering the step S400;
s302, the control module adjusts the output power of the exhaust fan 2 according to the hydrogen concentration, so that the gas purging amount of the purging module is controlled, and the step S400 is executed;
s400, the hydrogen concentration in the shell space meets the requirement, and the process is ended.
Wherein the concentration threshold is 4% hydrogen volume concentration.
Example 2
The embodiment provides a vehicle-mounted hydrogen storage system device, as shown in fig. 3, the vehicle-mounted hydrogen storage system device includes a hydrogen storage module and a purging module, and the purging module is used for blowing out hydrogen leaked in the hydrogen storage module.
The vehicle-mounted hydrogen storage system device also comprises a concentration sensor 1 and a control module, wherein the concentration sensor 1 is electrically connected with the hydrogen storage module and is used for detecting the hydrogen concentration in the hydrogen storage module; the control module is respectively and electrically connected with the concentration sensor 1 and the purging module, and the control module is used for receiving a feedback signal of the concentration sensor 1 and controlling the gas purging amount of the purging module.
The hydrogen storage module comprises a shell, a purge gas outlet 7 and a purge gas inlet are formed in the shell, a hydrogen storage tank 3 is arranged in the shell, and a concentration sensor 1 is used for detecting the hydrogen concentration leaked from the hydrogen storage tank 3 in the shell space.
The purging module comprises an air compressor 4 and an intercooler 5 which are sequentially connected along the air inlet direction, the intercooler 5 is connected with the hydrogen storage module through a purging gas pipeline, and the outlet end of the purging gas pipeline is connected to a purging gas inlet; and the purge gas pipeline is provided with a regulating valve 6 electrically connected with the control module.
The embodiment also provides a control method using the vehicle-mounted hydrogen storage system device, as shown in fig. 4, the control method specifically includes:
s100, the detection module acquires the concentration of hydrogen leaked from the hydrogen storage tank 3 in the shell space, and the step S101 is executed;
s101, the control module judges whether the hydrogen concentration in the shell space is greater than 0 according to the acquired hydrogen concentration, and if the judgment result is yes, the step S202 is executed; if the judgment result is negative, the step S201 is entered;
s201, the regulating valve 6 is kept in a closed state, and the process goes to step S400;
s202, the control module judges whether the hydrogen concentration in the shell space is higher than a concentration threshold value according to the acquired hydrogen concentration, and if the judgment result is yes, the step S301 is executed; if the judgment result is negative, the step S302 is entered;
s301, stopping power supply, turning off the power supply, and entering the step S400;
s302, the control module adjusts the opening of the regulating valve 6 according to the hydrogen concentration so as to control the gas purging amount of the purging module, and the step S400 is executed;
s400, the hydrogen concentration in the shell space meets the requirement, and the process is ended.
Wherein the concentration threshold is 4% hydrogen volume concentration.
Example 3
The embodiment provides a vehicle-mounted hydrogen storage system device, as shown in fig. 5, the vehicle-mounted hydrogen storage system device includes a hydrogen storage module and a purging module, and the purging module is used for blowing out hydrogen leaked in the hydrogen storage module.
The vehicle-mounted hydrogen storage system device also comprises a concentration sensor 1 and a control module, wherein the concentration sensor 1 is electrically connected with the hydrogen storage module and is used for detecting the hydrogen concentration in the hydrogen storage module; the control module is respectively and electrically connected with the concentration sensor 1 and the purging module, and the control module is used for receiving a feedback signal of the concentration sensor 1 and controlling the gas purging amount of the purging module.
The hydrogen storage module comprises a shell, a purge gas outlet 7 and a purge gas inlet are formed in the shell, a hydrogen storage tank 3 is arranged in the shell, and a concentration sensor 1 is used for detecting the hydrogen concentration leaked from the hydrogen storage tank 3 in the shell space.
The combination of one purging module and a purging module provided by the other purging module is adopted, the purging module comprises an air compressor 4 and an intercooler 5 which are sequentially connected along the air inlet direction, the intercooler 5 is connected with the hydrogen storage module through a purging gas pipeline, and the outlet end of the purging gas pipeline is connected to a purging gas inlet; the purge gas pipeline is provided with a regulating valve 6 electrically connected with the control module, and further comprises an exhaust fan 2 arranged at a purge gas outlet 7.
The embodiment also provides a control method using the vehicle-mounted hydrogen storage system device, as shown in fig. 6, the control method specifically includes:
s100, the detection module acquires the concentration of hydrogen leaked from the hydrogen storage tank 3 in the shell space, and the step S101 is executed;
s101, the control module judges whether the hydrogen concentration in the shell space is greater than 0 according to the acquired hydrogen concentration, and if the judgment result is yes, the step S202 is executed; if the judgment result is negative, the step S201 is entered;
s201, the regulating valve 6 and the exhaust fan 2 are kept in a closed state, and the process goes to step S400;
s202, the control module judges whether the hydrogen concentration in the shell space is higher than a concentration threshold value according to the acquired hydrogen concentration, and if the judgment result is yes, the step S301 is executed; if the judgment result is negative, the step S302 is entered;
s301, stopping power supply, turning off the power supply, and entering the step S400;
s302, the control module simultaneously adjusts the opening of the regulating valve 6 and the output power of the exhaust fan 2 according to the hydrogen concentration, so that the gas purging amount of the purging module is controlled, and the step S400 is carried out;
s400, the hydrogen concentration in the shell space meets the requirement, and the process is ended.
Wherein, preferably, the concentration threshold is 4% hydrogen volume concentration.
In addition, the invention utilizes the detection module to detect the concentration of the leaked air and sends a feedback signal to the control module, the control module judges and regulates the air quantity of the blowing gas in the blowing module, and the hydrogen leaked in the hydrogen storage module is further treated and discharged by detecting and regulating, so that the danger of explosion caused by hydrogen aggregation is avoided.
The applicant declares that the above description is only a specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and it should be understood by those skilled in the art that any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are within the scope and disclosure of the present invention.
Claims (10)
1. The vehicle-mounted hydrogen storage system device is characterized by comprising a hydrogen storage module and a purging module, wherein the purging module is used for blowing out hydrogen leaked in the hydrogen storage module;
the vehicle-mounted hydrogen storage system device also comprises a detection module and a control module;
the detection module is electrically connected with the hydrogen storage module and is used for detecting the hydrogen concentration in the hydrogen storage module;
the control module is respectively and electrically connected with the detection module and the purging module, and the control module is used for receiving a feedback signal of the detection module and controlling the gas purging amount of the purging module.
2. The vehicle-mounted hydrogen storage system device according to claim 1, wherein the hydrogen storage module comprises a housing, and the housing is provided with a purge gas outlet and a purge gas inlet;
preferably, the housing is provided with a hydrogen storage tank, and the detection module is used for detecting the concentration of hydrogen leaked from the hydrogen storage tank in the housing space.
3. The vehicular hydrogen storage system device according to claim 1 or 2, wherein the purge module is an exhaust fan, and the exhaust fan is disposed at the purge gas outlet and discharges hydrogen gas leaked from the hydrogen storage module by using an air flow generated by the exhaust fan.
4. The vehicle-mounted hydrogen storage system device according to any one of claims 1 to 3, wherein the purge module comprises an air compressor and a intercooler connected in series along an air intake direction.
5. The vehicle-mounted hydrogen storage system device according to any one of claims 1 to 4, wherein the intercooler is connected to the hydrogen storage module through a purge gas pipeline, and an outlet end of the purge gas pipeline is connected to a purge gas inlet;
preferably, the purge gas pipeline is provided with a regulating valve electrically connected with the control module.
6. The on-board hydrogen storage system arrangement according to any of claims 1-5, wherein the detection module is a concentration sensor.
7. A control method using the on-vehicle hydrogen storage system apparatus according to any one of claims 1 to 6, characterized in that the control method comprises:
and the control module controls the gas purging amount of the purging module according to the hydrogen concentration in the hydrogen storage module detected by the detection module, so that the hydrogen concentration in the hydrogen storage module meets the requirement.
8. The method for controlling a system device according to claim 7, wherein the method specifically comprises:
s100, the detection module acquires the concentration of hydrogen leaked from the hydrogen storage tank in the shell space, and the step S101 is executed;
s101, the control module judges whether the hydrogen concentration in the shell space is greater than 0 according to the acquired hydrogen concentration, and if the judgment result is yes, the step S202 is executed; if the judgment result is negative, the step S201 is entered;
s201, keeping the purging module in a closed state, and entering a step S400;
s202, the control module judges whether the hydrogen concentration in the shell space is higher than a concentration threshold value according to the acquired hydrogen concentration, and if the judgment result is yes, the step S301 is executed; if the judgment result is negative, the step S302 is entered;
s301, stopping power supply, turning off the power supply, and entering the step S400;
s302, the control module adjusts and controls the gas purging amount of the purging module according to the hydrogen concentration, and the step S400 is started;
s400, the hydrogen concentration in the shell space meets the requirement, and the process is ended.
9. The method for controlling a system-device according to claim 7 or 8, wherein in step S201, the purge module is kept off as the exhaust fan is kept off;
preferably, in step S302, the adjusting of the gas purging amount of the control purging module is to adjust the output power of the exhaust fan.
10. The method for controlling a system-device according to any one of claims 7 to 9, wherein in step S201, the purge module is kept closed with the regulator valve kept closed;
preferably, in step S302, the adjusting and controlling of the gas purging amount of the purging module is performed by adjusting the opening degree of the regulating valve;
preferably, the concentration threshold is 4% hydrogen volume concentration.
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