CN216120386U - Hydrogen fuel cell test system and hydrogen safety device - Google Patents
Hydrogen fuel cell test system and hydrogen safety device Download PDFInfo
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- CN216120386U CN216120386U CN202122328687.XU CN202122328687U CN216120386U CN 216120386 U CN216120386 U CN 216120386U CN 202122328687 U CN202122328687 U CN 202122328687U CN 216120386 U CN216120386 U CN 216120386U
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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
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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- Y02E60/30—Hydrogen technology
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Abstract
The utility model discloses a hydrogen fuel cell testing system and a hydrogen safety protection device, wherein the hydrogen safety protection device comprises: the system comprises a hydrogen supply cutting and emptying mechanism, a hydrogen leakage detection mechanism, a fire detection mechanism, an exhaust mechanism and a hydrogen leakage alarm controller. When the locker room hydrogen concentration detection subassembly detects that there is hydrogen in the hydrogen locker room to reveal, perhaps, when the laboratory hydrogen concentration detection subassembly detects that there is hydrogen in the hydrogen fuel cell laboratory to reveal, hydrogen reveals alarm controller and sends alarm signal to discharge the hydrogen of revealing in with the hydrogen locker room through fan control module outdoor, perhaps, control the second exhaust fan and discharge the hydrogen of revealing in with the hydrogen fuel cell laboratory to the outdoor of hydrogen fuel cell laboratory. If the fire occurs, the air supply valve is controlled to be closed and the emptying valve is controlled to be opened. So, reveal alarm controller through hydrogen and realize the linkage, guarantee the security of experimentation.
Description
Technical Field
The application relates to the technical field of fuel cells, in particular to a hydrogen fuel cell laboratory and a hydrogen safety protection device.
Background
A Proton exchange membrane fuel cell (Proton exchange membrane fuel cell PEMFC) is a new energy power generation device with the advantages of high energy conversion efficiency, low working temperature, zero pollution, high energy density, etc. At present, hydrogen energy is taken as a national strategic energy technology in China, and continuous policy support and large-scale industrialization guidance are given. Among them, the fuel cell is the main direction and the inevitable way for commercialization as an important direction of hydrogen energy.
It is understood that research and product validation of hydrogen fuel cells requires a great deal of basic experimental work, and that hydrogen energy laboratories have come to work. The hydrogen energy laboratory is a place for scientific research and product inspection of the fuel cell and auxiliary products thereof, and the safety of the hydrogen energy laboratory is of great importance and is the most critical part of the whole hydrogen fuel cell laboratory. The hydrogen consumption of fuel cell laboratories is high, the risk of leakage often exists, and if no effective monitoring, alarming and processing system is available, safety accidents are easy to happen. However, most of the existing hydrogen fuel cell laboratories have no perfect safety control system, which is not designed well and has low safety, and meanwhile, no effective linkage control exists, and certain safety risk exists.
SUMMERY OF THE UTILITY MODEL
The application provides a hydrogen fuel cell test system and hydrogen safety device to guarantee the security of experiment, prevent the emergence of accident.
According to a first aspect of the present application, there is provided a hydrogen gas safety device comprising:
hydrogen gas supply cuts off and unloading mechanism includes: an air supply valve and an air release valve; the gas supply valve is arranged on the hydrogen gas supply pipeline and used for controlling the on-off of the hydrogen gas supply pipeline; the air release valve is arranged on the hydrogen release pipeline and is used for controlling the on-off of the hydrogen release pipeline;
hydrogen leakage detection mechanism includes: the hydrogen concentration detection assembly for the storage chamber is used for detecting the hydrogen concentration in the hydrogen storage chamber, and the hydrogen concentration detection assembly for the laboratory is used for detecting the hydrogen concentration in the laboratory;
fire detection mechanism includes: the fire alarm and control system comprises a first flame detector, a second flame detector and a fire alarm and control module; the output end of the first flame detector and the output end of the second flame detector are both connected with the input end of the fire alarm and control module, and the first flame detector is used for detecting whether a fire exists in the hydrogen storage chamber; the second flame detector is used for detecting whether a fire exists in the hydrogen fuel cell laboratory;
an exhaust mechanism comprising: the hydrogen storage device comprises a first exhaust fan, a second exhaust fan and a fan control module, wherein the first exhaust fan and the second exhaust fan are both connected with the fan control module, the first exhaust fan is used for discharging leaked hydrogen in a hydrogen storage chamber to the outside of the hydrogen storage chamber, and the second exhaust fan is used for discharging leaked hydrogen in a hydrogen fuel cell laboratory to the outside of the laboratory;
the control end of the gas supply valve, the control end of the emptying valve, the output end of the storage chamber hydrogen concentration detection assembly, the output end of the laboratory hydrogen concentration detection assembly, the output end of the fire alarm and control module and the output end of the fan control module are all connected with the hydrogen leakage alarm controller.
In one embodiment, the hydrogen leakage alarm controller includes: the control end of the alarm module, the output end of the storage chamber hydrogen concentration detection assembly and the output end of the laboratory hydrogen concentration detection assembly are connected with the input end of the first comparison module, the input end of the second comparison module and the input end of the third comparison module, the fan control module is connected with the output end of the second comparison module and the output end of the third comparison module, and the control end of the air supply valve and the control end of the emptying valve are connected with the input end of the third comparison module; the first comparison module is used for comparing whether the hydrogen concentration value detected by the storage chamber hydrogen concentration detection assembly and/or the laboratory hydrogen concentration detection assembly is within a first preset range, and controlling the alarm module to send out an alarm signal when the hydrogen concentration value is within the first preset range; the second comparison module is used for comparing whether the hydrogen concentration detected by the storage chamber hydrogen concentration detection assembly and/or the laboratory hydrogen concentration detection assembly is within a second preset range or not, and when the hydrogen concentration is within the second preset range, the alarm module is controlled to send out an alarm signal, and the fan control module controls the first exhaust fan and/or the second exhaust fan to operate at a first preset power; the third comparison module is used for comparing whether the hydrogen concentration value that storeroom hydrogen concentration detection subassembly and/or laboratory hydrogen concentration detection subassembly detected is in the third preset range, when presetting the scope in the third, controls alarm module sends alarm signal, fan control module control first exhaust fan and/or second exhaust fan are in the operation of the second preset power, the air feed valve is closed the atmospheric valve is opened.
In one embodiment, the first predetermined range is that the detected volume concentration of hydrogen is less than 0.5%, the second predetermined range is that the detected volume concentration of hydrogen is greater than 0.5% and less than 4.0%, and the third predetermined range is that the detected volume concentration of hydrogen is greater than 4.0%.
In one embodiment, the first preset power of the first exhaust fan and the second exhaust fan is half power, and the second preset power of the first exhaust fan and the second exhaust fan is full power.
In one embodiment, the fire detection mechanism further comprises: the input end of the first fire fighting disposal unit and the input end of the second fire fighting disposal unit are both connected with the fire fighting alarm and control module; the first fire fighting disposal unit is used for extinguishing fire in the hydrogen storage chamber when the first flame detector detects that a fire exists in the hydrogen storage chamber; and the second fire-fighting disposal unit is used for extinguishing the fire of the hydrogen fuel cell laboratory when the second flame detector detects that the fire exists in the hydrogen fuel cell laboratory.
In one embodiment, the first and second fire handling units are both self-extinguishing facilities.
In one embodiment, the first flame detector and the second flame detector each comprise: at least one of an infrared flame detection sensor, an ultraviolet flame detection sensor, and an infrared/ultraviolet flame detection sensor.
In one embodiment, the storage chamber hydrogen concentration detection assembly includes: the first hydrogen concentration detector of setting in the inside top in hydrogen storage room, the second hydrogen concentration detector of setting in hydrogen storage room hydrogen busbar top to and the third hydrogen concentration detector of setting in hydrogen storage room hydrogen container check top.
In one embodiment, the laboratory hydrogen concentration detection assembly comprises: the hydrogen concentration detector comprises a fourth hydrogen concentration detector arranged above a laboratory gas supply panel, a fifth hydrogen concentration detector arranged above a test board, and a sixth hydrogen concentration detector arranged above an exhaust pipe, so as to be arranged above other hydrogen-using equipment in a laboratory.
According to a second aspect of the present application, there is provided a hydrogen fuel cell testing system comprising the hydrogen gas safety protection device.
According to the hydrogen fuel cell test system and the hydrogen safety protection system of the above embodiment, when the storage chamber hydrogen concentration detection assembly detects that hydrogen gas leaks from the hydrogen storage chamber, or when the laboratory hydrogen concentration detection assembly detects that hydrogen gas leaks from the hydrogen fuel cell laboratory, a hydrogen gas leakage signal is generated and output to the hydrogen gas leakage alarm controller, the hydrogen gas leakage alarm controller sends out an alarm signal, and the first exhaust fan is controlled by the fan control module to exhaust the leaked hydrogen gas from the hydrogen storage chamber to the outside of the hydrogen storage chamber, or the second exhaust fan is controlled to exhaust the leaked hydrogen gas from the hydrogen fuel cell laboratory to the outside of the hydrogen fuel cell laboratory. If fire occurs in the hydrogen storage chamber and/or the hydrogen fuel cell laboratory, the hydrogen leakage alarm controller controls the closing of the gas supply valve and the opening of the emptying valve so as to prevent hydrogen from entering and discharge residual hydrogen in the pipeline. So, reveal the mode that alarm controller realized the linkage through hydrogen, guarantee the security of experimentation, prevent the emergence of dangerous accident.
Drawings
FIG. 1 is a block diagram of a hydrogen safety device provided herein;
FIG. 2 is a block diagram of a laboratory hydrogen concentration detection assembly of the hydrogen safety protection device provided by the present application;
fig. 3 is a block diagram of a fire detection mechanism in the hydrogen safety protection device provided by the present application.
Detailed Description
The present application will be described in further detail below with reference to the accompanying drawings by way of specific embodiments. Wherein like elements in different embodiments are numbered with like associated elements. In the following description, numerous details are set forth in order to provide a better understanding of the present application. However, those skilled in the art will readily recognize that some of the features may be omitted or replaced with other elements, materials, methods in different instances. In some instances, certain operations related to the present application have not been shown or described in detail in order to avoid obscuring the core of the present application from excessive description, and it is not necessary for those skilled in the art to describe these operations in detail, so that they may be fully understood from the description in the specification and the general knowledge in the art.
Furthermore, the features, operations, or characteristics described in the specification may be combined in any suitable manner to form various embodiments, and the operation steps involved in the embodiments may be interchanged or modified in order as will be apparent to those skilled in the art. Accordingly, the description and drawings are merely for clarity of description of certain embodiments and are not intended to necessarily refer to a required composition and/or order.
The numbering of the components as such, e.g., "first", "second", etc., is used herein only to distinguish the objects as described, and does not have any sequential or technical meaning. The term "connected" and "coupled" when used in this application, unless otherwise indicated, includes both direct and indirect connections (couplings).
The application provides a hydrogen fuel cell test system and hydrogen safety device, wherein, hydrogen fuel cell test system can test hydrogen fuel cell's performance, and hydrogen safety device can detect revealing of the hydrogen in the testing process to revealing because of hydrogen takes place the condition of a fire and detect, detecting that there is hydrogen to reveal and take place under the condition of a fire, carry out a series of safety protection measures. In the following embodiments, the hydrogen storage chamber supplies hydrogen to the hydrogen fuel cell laboratory, and the hydrogen safety protection device simultaneously protects the hydrogen storage chamber and the hydrogen fuel cell laboratory.
The first embodiment,
Referring to fig. 1 to 3, the present embodiment provides a hydrogen safety protection device, which mainly includes: a hydrogen gas supply cutting and emptying mechanism 100, a hydrogen gas leakage detection mechanism 200, a fire detection mechanism 300, an exhaust mechanism 400, and a hydrogen gas leakage alarm controller 500.
Hydrogen gas supply cuts off and unloading mechanism 100 includes: a gas supply valve 101 and a vent valve 102, wherein the gas supply valve 101 is installed on a hydrogen gas supply pipeline, the hydrogen gas supply pipeline is a pipeline connecting a hydrogen gas bus bar 103 in a hydrogen storage chamber and a hydrogen gas supply panel 104 in a hydrogen fuel cell laboratory, the gas supply valve 101 is used for controlling the on-off of the hydrogen gas supply pipeline, and the gas supply valve 101 supplies hydrogen gas to the hydrogen gas supply panel 104 through the hydrogen gas bus bar 103 when connecting the hydrogen gas bus bar 103 in the hydrogen storage chamber and the hydrogen gas supply panel 104 in the hydrogen fuel cell laboratory. Atmospheric valve 102 installs on the hydrogen atmospheric line, and this atmospheric valve 102 is used for controlling the break-make of hydrogen atmospheric line, and the one end of this hydrogen atmospheric line is connected on the hydrogen gas supply pipeline, and the other end of hydrogen atmospheric line is connected to the external world, under atmospheric valve 102 open mode, can discharge the hydrogen in the hydrogen gas supply pipeline to the external world.
In this embodiment, the hydrogen gas supply pipeline is connected between hydrogen busbar 103 in the hydrogen storage room and hydrogen gas supply panel 104 in the hydrogen fuel cell laboratory, and hydrogen unloading pipeline can connect on one section that the hydrogen gas supply pipeline is located the hydrogen storage room, perhaps, connect and serve in one of hydrogen gas supply pipeline is located the hydrogen fuel cell laboratory, perhaps, connect on one section between hydrogen storage room and hydrogen fuel cell laboratory, thereby, the external world that the other end of hydrogen unloading pipeline is connected is the external world of hydrogen storage room or hydrogen fuel cell laboratory promptly.
The hydrogen leakage detection mechanism 200 includes: store up room hydrogen concentration detection subassembly 201 and laboratory hydrogen concentration detection subassembly 202, store up room hydrogen concentration detection subassembly 201 and set up in the hydrogen storage room, this store up room hydrogen concentration detection subassembly is arranged in detecting the hydrogen concentration in the hydrogen storage room to when detecting hydrogen concentration in the hydrogen storage room, can judge whether there is hydrogen in the hydrogen storage room and reveal. The laboratory hydrogen concentration detection assembly 202 is provided in a hydrogen fuel cell laboratory, and the laboratory hydrogen concentration detection assembly 202 is used to detect the hydrogen concentration in the laboratory so that when the hydrogen concentration is detected in the hydrogen fuel cell laboratory, it can be judged that there is a hydrogen leak in the hydrogen fuel cell laboratory.
The fire detection mechanism 300 includes: a first flame detector 301, a second flame detector 302 and a fire alarm and control module 303. The output end of the first flame detector 301 and the output end of the second flame detector 302 are both connected to the input end of the fire alarm and control module 303, in some embodiments, the connection between the output end of the first flame detector 301 and the output end of the second flame detector 302 and the fire alarm and control module 303 may be a wired connection or a wireless communication connection, and in this embodiment, a communication connection mode is adopted. First flame detector 301 sets up in the hydrogen locker room, and this first flame detector 301 is used for detecting whether there is the condition of a fire in the hydrogen locker room, when detecting that there is the condition of a fire in the hydrogen locker room, generates and stores the condition of a fire signal and carries for fire alarm and control module 303, and this fire alarm and control module 303 can send alarm signal. The second flame detector 302 is arranged in the hydrogen fuel cell laboratory, the second flame detector 302 is used for detecting whether a fire exists in the hydrogen fuel cell laboratory, when the fire exists in the hydrogen fuel cell laboratory, a laboratory fire signal is generated and is transmitted to the fire alarm and control module 303, and the fire alarm and control module 303 can send out an alarm signal.
It should be noted that, when the two detectors detect the fire signal respectively, the fire alarm and control module 303 sends out different alarm signals for the two detectors, for example, one of the two detectors sends out an audio alarm signal, and the other detector sends out an optical alarm signal. Of course, in other embodiments, the alarm signals are the same, and when both detectors detect a fire, an audible alarm signal, an optical alarm signal, or an audible and visual alarm signal may be generated simultaneously.
In one embodiment, the first flame detector 301 and the second flame detector 302 may each be at least one of an infrared flame detection sensor, an ultraviolet flame detection sensor, and an infrared/ultraviolet flame detection sensor. The infrared flame detection sensor can detect infrared light with longer wavelength in flame, the ultraviolet flame detection sensor can detect ultraviolet light with shorter wavelength in flame, and the infrared/ultraviolet flame detection sensor can detect infrared light with longer wavelength in flame and can detect ultraviolet light with shorter wavelength in flame.
The exhaust mechanism 400 includes: the first exhaust fan 401, the second exhaust fan 402 and the fan control module 403, the first exhaust fan 401 and the second exhaust fan 402 are both connected to the fan control module 403, similarly, the first exhaust fan 401, the second exhaust fan 402 and the fan control module 403 may also be connected to each other in a wired manner, or in a wireless manner, in this embodiment, the first exhaust fan 401, the second exhaust fan 402 and the fan control module 403 are preferably connected to each other in a communication manner. The first exhaust fan 401 is disposed in the hydrogen storage chamber, specifically, on a wall of the hydrogen storage chamber, and the first exhaust fan 401 is used for discharging the leaked hydrogen in the hydrogen storage chamber to the outside of the hydrogen storage chamber. The second exhaust fan 402 is provided in the hydrogen fuel cell laboratory, specifically, on a wall of the hydrogen fuel cell laboratory, and the second exhaust fan 402 is used to exhaust hydrogen gas leaked in the hydrogen fuel cell laboratory to the outside of the hydrogen fuel cell laboratory.
In this embodiment, the fan control module 403 may control the turning on, turning off, and the rotation speed of the first exhaust fan 401 and the second exhaust fan 402.
The control end of the air supply valve 101, the control end of the air release valve 102, the output end of the storage chamber hydrogen concentration detection assembly 201, the output end of the laboratory hydrogen concentration detection assembly 202, the output end of the fire alarm and control module 303 and the output end of the fan control module 403 are all connected with the hydrogen leakage alarm controller 500. Similarly, the connection may be a wired connection by a wired method, or may be a communication connection by a wireless method, preferably, a communication connection.
In this embodiment, when the storage chamber hydrogen concentration detection assembly 201 detects that there is hydrogen leakage in the hydrogen storage chamber, or when the laboratory hydrogen concentration detection assembly 202 detects that there is hydrogen leakage in the hydrogen fuel cell laboratory, a hydrogen leakage signal is generated and output to the hydrogen leakage alarm controller 500, the hydrogen leakage alarm controller 500 sends an alarm signal, and controls the first exhaust fan 401 to exhaust the hydrogen leaked in the hydrogen storage chamber to the outside of the hydrogen storage chamber through the fan control module 403, or controls the second exhaust fan 402 to exhaust the hydrogen leaked in the hydrogen fuel cell laboratory to the outside of the hydrogen fuel cell laboratory. If a fire occurs in the hydrogen storage chamber and/or the hydrogen fuel cell laboratory, the hydrogen leakage alarm controller 500 controls the closing of the gas supply valve 101 and the opening of the vent valve 102 to block the hydrogen from entering and discharge the residual hydrogen in the pipeline. So, reveal the mode that alarm controller 500 realized the linkage through hydrogen, guarantee the security of experimentation, prevent the emergence of dangerous accident.
In this embodiment, the hydrogen leakage alarm controller 500 includes: alarm module, first comparison module, second comparison module, and third comparison module, alarm module's control end, the output of locker room hydrogen concentration detection subassembly 201, laboratory hydrogen concentration detection subassembly 202's output all with the input of first comparison module, the input of second comparison module and the input of third comparison module are connected, fan control module 403 all with the output of second comparison module, the output of third comparison module is connected, the control end of air feed valve 101, the control end of atmospheric valve 102 all is connected with the input of third comparison module. The first comparing module is used for comparing whether the hydrogen concentration value detected by the storage chamber hydrogen concentration detecting component 201 and/or the laboratory hydrogen concentration detecting component 202 is within a first preset range, and when the hydrogen concentration value is within the first preset range, the alarming module is controlled to send out an alarming signal. The second comparing module is used for comparing whether the hydrogen concentration detected by the storage chamber hydrogen concentration detecting assembly 201 and/or the laboratory hydrogen concentration detecting assembly 202 is within a second preset range, and when the hydrogen concentration is within the second preset range, the alarm module is controlled to send out an alarm signal, and meanwhile, the fan control module 403 controls the first exhaust fan 401 and/or the second exhaust fan 402 to operate at a first preset power. The third comparing module is used for comparing whether the hydrogen concentration value detected by the storage chamber hydrogen concentration detecting assembly 201 and/or the laboratory hydrogen concentration detecting assembly 202 is within a third preset range, and when the hydrogen concentration value is within the third preset range, the alarm module is controlled to send out an alarm signal, the fan control module 403 controls the first exhaust fan 401 and/or the second exhaust fan 402 to operate at a second preset power, meanwhile, the gas supply valve 101 is closed to block the hydrogen from entering, and the vent valve 102 is opened to discharge the residual hydrogen in the pipeline.
In one embodiment, the hydrogen detected by the storage chamber hydrogen concentration detection assembly 201 and the laboratory hydrogen concentration detection assembly 202 is expressed by the volume concentration of hydrogen, and the first predetermined range is that the volume concentration of the detected hydrogen is less than 0.5%, the second predetermined range is that the volume concentration of the detected hydrogen is greater than 0.5% and less than 4.0%, and the third predetermined range is that the volume concentration of the detected hydrogen is greater than 4.0%. Namely, different protection measures are taken for different hydrogen volume concentrations.
In this embodiment, the first preset power of the first exhaust fan 401 and the second exhaust fan 402 is half power, and the second preset power of the first exhaust fan 401 and the second exhaust fan 402 is full power. The half power and the full power can realize different rotating speeds of the first exhaust fan 401 and the second exhaust fan 402.
As shown in fig. 3, the fire detection mechanism 300 further includes: a first fire-fighting disposal unit 304 and a second fire-fighting disposal unit 305, wherein the input end of the first fire-fighting disposal unit 304 and the input end of the second fire-fighting disposal unit 305 are both connected with the fire-fighting alarm and control module 303. A first fire fighting handling unit 304 is installed in the hydrogen storage chamber, the first fire fighting handling unit 304 being configured to extinguish a fire in the hydrogen storage chamber when the first flame detector 301 detects a fire in the hydrogen storage chamber. A second fire-fighting disposal unit 305 is installed in the hydrogen fuel cell laboratory, and the second fire-fighting disposal unit 305 is used for extinguishing a fire in the hydrogen fuel cell laboratory when the second flame detector 302 detects that a fire exists in the hydrogen fuel cell laboratory.
In this embodiment, the first fire-fighting disposal unit 304 and the second fire-fighting disposal unit 305 are both automatic fire-fighting facilities, for example, automatic fire-fighting sprinkler systems.
Of course, in other embodiments, the first fire-fighting handling unit 304 and the second fire-fighting handling unit 305 may also be independently provided fire-fighting facilities, such as fire hydrants, fire extinguishers, etc., implemented by way of manual fire extinguishment.
The storage-chamber hydrogen concentration detection assembly 201 includes: the first hydrogen concentration detector of setting in the inside top of hydrogen locker room, the second hydrogen concentration detector of hydrogen busbar top in the hydrogen locker room to and the third hydrogen concentration detector of hydrogen container check top in the hydrogen locker room of setting, can detect the hydrogen that hydrogen locker room inside, hydrogen busbar, hydrogen container check revealed respectively.
In this embodiment, the laboratory hydrogen concentration detection module 202 includes: a fourth hydrogen concentration detector 2021 disposed above the laboratory gas supply panel, a fifth hydrogen concentration detector 2022 disposed above the test table 2001, a sixth hydrogen concentration detector 2023 disposed above the exhaust pipe 2004, and a seventh hydrogen concentration detector 2024 disposed above other hydrogen-using equipment in the laboratory. The fifth hydrogen concentration detector 2022 is disposed above the draft hood 2002 above the test table 2001, and the sixth hydrogen concentration detector 2023 is disposed above the exhaust pipe 2004 and the steam-water separator 2003.
In one embodiment, an exhaust fan 2005 is further disposed above the exhaust pipe 2004 to ventilate the laboratory or to exhaust leaked hydrogen from the laboratory.
Example II,
The embodiment provides a hydrogen fuel cell testing system, which comprises the hydrogen safety protection device in the first embodiment, so as to effectively protect the hydrogen fuel cell testing system and improve the use safety. Of course, the test system includes not only the test instrument, but also a hydrogen storage chamber and a hydrogen fuel cell laboratory.
In conclusion, among the hydrogen fuel cell test system and the hydrogen safety device that this application provided, there is hydrogen to reveal in the room hydrogen concentration detection subassembly detects the hydrogen locker room when the room hydrogen concentration detection subassembly detects hydrogen and reveals, perhaps, when there is hydrogen to reveal in the laboratory hydrogen fuel cell detection subassembly detects the hydrogen locker room, generate hydrogen and reveal the signal and export for hydrogen and reveal alarm controller, this hydrogen reveals alarm controller and sends alarm signal, and discharge the hydrogen of revealing in the hydrogen locker room to the room in hydrogen locker room through fan control module control first exhaust fan, perhaps, control the second exhaust fan and discharge the hydrogen of revealing in the hydrogen fuel cell laboratory to the room in hydrogen fuel cell laboratory. If fire occurs in the hydrogen storage chamber and/or the hydrogen fuel cell laboratory, the hydrogen leakage alarm controller controls the closing of the gas supply valve and the opening of the emptying valve so as to prevent hydrogen from entering and discharge residual hydrogen in the pipeline. So, reveal the mode that alarm controller realized the linkage through hydrogen, guarantee the security of experimentation, prevent the emergence of dangerous accident. Meanwhile, when fire occurs, not only can the alarm signal be sent out through the fire alarm and control module, but also the control of the alarm controller can be leaked through hydrogen, and the first fire-fighting disposal unit and the second fire-fighting disposal unit are adopted for fire extinguishment.
The present invention has been described in terms of specific examples, which are provided to aid understanding of the utility model and are not intended to be limiting. For a person skilled in the art to which the utility model pertains, several simple deductions, modifications or substitutions may be made according to the idea of the utility model.
Claims (10)
1. A hydrogen gas safety device, comprising:
hydrogen gas supply cuts off and unloading mechanism includes: an air supply valve and an air release valve; the gas supply valve is arranged on the hydrogen gas supply pipeline and used for controlling the on-off of the hydrogen gas supply pipeline; the air release valve is arranged on the hydrogen release pipeline and is used for controlling the on-off of the hydrogen release pipeline;
hydrogen leakage detection mechanism includes: the hydrogen concentration detection assembly for the storage chamber is used for detecting the hydrogen concentration in the hydrogen storage chamber, and the hydrogen concentration detection assembly for the laboratory is used for detecting the hydrogen concentration in the laboratory;
fire detection mechanism includes: the fire alarm and control system comprises a first flame detector, a second flame detector and a fire alarm and control module; the output end of the first flame detector and the output end of the second flame detector are both connected with the input end of the fire alarm and control module, and the first flame detector is used for detecting whether a fire exists in the hydrogen storage chamber; the second flame detector is used for detecting whether a fire exists in the hydrogen fuel cell laboratory;
an exhaust mechanism comprising: the hydrogen storage device comprises a first exhaust fan, a second exhaust fan and a fan control module, wherein the first exhaust fan and the second exhaust fan are both connected with the fan control module, the first exhaust fan is used for discharging leaked hydrogen in a hydrogen storage chamber to the outside of the hydrogen storage chamber, and the second exhaust fan is used for discharging leaked hydrogen in a hydrogen fuel cell laboratory to the outside of the laboratory;
the control end of the gas supply valve, the control end of the emptying valve, the output end of the storage chamber hydrogen concentration detection assembly, the output end of the laboratory hydrogen concentration detection assembly, the output end of the fire alarm and control module and the output end of the fan control module are all connected with the hydrogen leakage alarm controller.
2. The hydrogen safety shield of claim 1, wherein the hydrogen leak alarm controller comprises: the control end of the alarm module, the output end of the storage chamber hydrogen concentration detection assembly and the output end of the laboratory hydrogen concentration detection assembly are connected with the input end of the first comparison module, the input end of the second comparison module and the input end of the third comparison module, the fan control module is connected with the output end of the second comparison module and the output end of the third comparison module, and the control end of the air supply valve and the control end of the emptying valve are connected with the input end of the third comparison module; the first comparison module is used for comparing whether the hydrogen concentration value detected by the storage chamber hydrogen concentration detection assembly and/or the laboratory hydrogen concentration detection assembly is within a first preset range, and controlling the alarm module to send out an alarm signal when the hydrogen concentration value is within the first preset range; the second comparison module is used for comparing whether the hydrogen concentration detected by the storage chamber hydrogen concentration detection assembly and/or the laboratory hydrogen concentration detection assembly is within a second preset range or not, and when the hydrogen concentration is within the second preset range, the alarm module is controlled to send out an alarm signal, and the fan control module controls the first exhaust fan and/or the second exhaust fan to operate at a first preset power; the third comparison module is used for comparing whether the hydrogen concentration value that storeroom hydrogen concentration detection subassembly and/or laboratory hydrogen concentration detection subassembly detected is in the third preset range, when presetting the scope in the third, controls alarm module sends alarm signal, fan control module control first exhaust fan and/or second exhaust fan are in the operation of the second preset power, the air feed valve is closed the atmospheric valve is opened.
3. A hydrogen safety apparatus according to claim 2, wherein the first predetermined range is a detected hydrogen volume concentration of less than 0.5%, the second predetermined range is a detected hydrogen volume concentration of more than 0.5% and less than 4.0%, and the third predetermined range is a detected hydrogen volume concentration of more than 4.0%.
4. The hydrogen safety apparatus of claim 2 wherein the first predetermined power of the first and second blowers is half power and the second predetermined power of the first and second blowers is full power.
5. The hydrogen safety apparatus of claim 1, wherein the fire detection mechanism further comprises: the input end of the first fire fighting disposal unit and the input end of the second fire fighting disposal unit are both connected with the fire fighting alarm and control module; the first fire fighting disposal unit is used for extinguishing fire in the hydrogen storage chamber when the first flame detector detects that a fire exists in the hydrogen storage chamber; and the second fire-fighting disposal unit is used for extinguishing the fire of the hydrogen fuel cell laboratory when the second flame detector detects that the fire exists in the hydrogen fuel cell laboratory.
6. The hydrogen safety shield apparatus of claim 5, wherein the first and second fire treatment units are self-extinguishing facilities.
7. The hydrogen safety apparatus of claim 1, wherein the first flame detector and the second flame detector each comprise: at least one of an infrared flame detection sensor, an ultraviolet flame detection sensor, and an infrared/ultraviolet flame detection sensor.
8. The hydrogen safety device according to claim 1, wherein the storage chamber hydrogen concentration detection assembly comprises: the first hydrogen concentration detector of setting in the inside top in hydrogen storage room, the second hydrogen concentration detector of setting in hydrogen storage room hydrogen busbar top to and the third hydrogen concentration detector of setting in hydrogen storage room hydrogen container check top.
9. The hydrogen safety shield of claim 8, wherein the laboratory hydrogen concentration detection assembly comprises: the hydrogen concentration detector comprises a fourth hydrogen concentration detector arranged above a laboratory gas supply panel, a fifth hydrogen concentration detector arranged above a test board, and a sixth hydrogen concentration detector arranged above an exhaust pipe, so as to be arranged above other hydrogen-using equipment in a laboratory.
10. A hydrogen fuel cell testing system comprising a hydrogen gas safety guard according to any one of claims 1 to 9.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116404216A (en) * | 2023-06-05 | 2023-07-07 | 武汉氢能与燃料电池产业技术研究院有限公司 | Exhaust device of marine fuel cell |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116404216A (en) * | 2023-06-05 | 2023-07-07 | 武汉氢能与燃料电池产业技术研究院有限公司 | Exhaust device of marine fuel cell |
| CN116404216B (en) * | 2023-06-05 | 2023-08-25 | 武汉氢能与燃料电池产业技术研究院有限公司 | Exhaust device of marine fuel cell |
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