CN117570364A - Leakage alarm device of vehicle-mounted hydrogen supply system - Google Patents
Leakage alarm device of vehicle-mounted hydrogen supply system Download PDFInfo
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- CN117570364A CN117570364A CN202410078163.5A CN202410078163A CN117570364A CN 117570364 A CN117570364 A CN 117570364A CN 202410078163 A CN202410078163 A CN 202410078163A CN 117570364 A CN117570364 A CN 117570364A
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- hydrogen
- storage tank
- hydrogen storage
- vehicle
- leakage
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- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 173
- 239000001257 hydrogen Substances 0.000 title claims abstract description 170
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 170
- 238000001514 detection method Methods 0.000 claims abstract description 30
- 238000007789 sealing Methods 0.000 claims abstract description 13
- 238000012544 monitoring process Methods 0.000 claims abstract description 4
- 238000004140 cleaning Methods 0.000 claims description 25
- 230000000903 blocking effect Effects 0.000 claims description 8
- 238000005259 measurement Methods 0.000 claims description 4
- 230000002349 favourable effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 238000004891 communication Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 4
- 239000003381 stabilizer Substances 0.000 description 4
- 239000000428 dust Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
- F17C13/02—Special adaptations of indicating, measuring, or monitoring equipment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/023—Cleaning the external surface
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
- F17C13/002—Details of vessels or of the filling or discharging of vessels for vessels under pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
- F17C13/04—Arrangement or mounting of valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
- F17C13/06—Closures, e.g. cap, breakable member
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/02—Alarms for ensuring the safety of persons
- G08B21/12—Alarms for ensuring the safety of persons responsive to undesired emission of substances, e.g. pollution alarms
- G08B21/16—Combustible gas alarms
-
- 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
- H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
- H01M8/04201—Reactant storage and supply, e.g. means for feeding, pipes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2221/00—Handled fluid, in particular type of fluid
- F17C2221/01—Pure fluids
- F17C2221/012—Hydrogen
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
- F17C2250/03—Control means
- F17C2250/036—Control means using alarms
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
- F17C2250/04—Indicating or measuring of parameters as input values
- F17C2250/0404—Parameters indicated or measured
- F17C2250/0447—Composition; Humidity
- F17C2250/0452—Concentration of a product
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2260/00—Purposes of gas storage and gas handling
- F17C2260/03—Dealing with losses
- F17C2260/035—Dealing with losses of fluid
- F17C2260/036—Avoiding leaks
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2260/00—Purposes of gas storage and gas handling
- F17C2260/03—Dealing with losses
- F17C2260/035—Dealing with losses of fluid
- F17C2260/037—Handling leaked fluid
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2260/00—Purposes of gas storage and gas handling
- F17C2260/03—Dealing with losses
- F17C2260/035—Dealing with losses of fluid
- F17C2260/038—Detecting leaked fluid
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2270/00—Applications
- F17C2270/01—Applications for fluid transport or storage
- F17C2270/0165—Applications for fluid transport or storage on the road
- F17C2270/0184—Fuel cells
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Health & Medical Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The invention discloses a leakage alarm device of a vehicle-mounted hydrogen supply system, which relates to the field of vehicle-mounted hydrogen supply systems, and the technical scheme is characterized in that the leakage alarm device comprises: the detection module is used for monitoring the hydrogen content around the hydrogen storage tank in real time; the alarm module is used for outputting an alarm signal when detecting that the hydrogen storage tank has hydrogen leakage; the pipeline cutting module is used for closing an output pipeline of the hydrogen storage tank when detecting that the hydrogen storage tank leaks hydrogen; the plugging module is used for sealing the outer side of the hydrogen storage tank when detecting that the hydrogen storage tank leaks, and preventing the hydrogen from continuously leaking outwards. The utility model provides a warning device is revealed to on-vehicle confession hydrogen system, through setting up the shutoff module, mainly used carries out parcel formula shutoff to the hydrogen storage tank outside, has realized warning device's automatic shutoff function, is favorable to in time improving the hydrogen and reveal the problem, avoids revealing the problem and enlarges for warning device not only possesses the detection function, still possesses the shutoff function to the leakage point.
Description
Technical Field
The invention relates to the technical field of vehicle-mounted hydrogen supply systems, in particular to a leakage alarm device of a vehicle-mounted hydrogen supply system.
Background
The vehicle-mounted hydrogen supply system is an important part of the fuel cell automobile, and has the function of providing hydrogen with stable pressure for the fuel cell engine, and is equivalent to an oil tank of a traditional gasoline automobile. From the technical design point of view, the vehicle-mounted hydrogen supply system mainly comprises high-pressure hydrogen storage bottles, filling ports, one-way valves, safety valves, overflow valves, pressure reducing valves, electromagnetic valves, hot melting bolts, pressure and temperature sensors, hydrogen pipelines and other parts. The device has the functions of over-temperature protection, low-voltage alarm, overvoltage protection, overcurrent protection and the like, and also considers the collision safety, the control of hydrogen leakage and the like.
At present, in order to improve the safety of the vehicle-mounted hydrogen supply system, a leakage alarm device is generally arranged and used for detecting hydrogen around a hydrogen storage bottle in real time, if the hydrogen leakage is detected, a leakage alarm can be immediately sent out, and people in the vehicle can be timely reminded of knowing the situation.
In related art, for example, CN213240064U, a vehicle-mounted hydrogen leakage detecting device is disclosed, which comprises a power conversion circuit, a wheatstone bridge circuit, a signal amplifier, a temperature sensor, an MCU, a communication device and a detecting device interface, wherein the wheatstone bridge circuit comprises a hydrogen sensor, the power conversion circuit comprises a DC/DC voltage stabilizer, a low-dropout linear voltage stabilizer and a voltage reference chip, and the DC/DC voltage stabilizer is respectively connected with the low-dropout linear voltage stabilizer, the voltage reference chip, the signal amplifier, the MCU, the temperature sensor, the communication device and the detecting device interface. Although the detection precision and the detection stability of the hydrogen are improved, the hydrogen leakage detection device only has a single detection function, and lacks effective plugging measures for the leakage points, even if the leakage points can be clearly known, the leakage problem can not be solved in time for drivers without professional technologies, and if the leakage problem is serious and is not improved in time, more serious consequences can be generated.
Disclosure of Invention
Aiming at the defects existing in the prior art, the invention aims to provide a leakage alarm device of a vehicle-mounted hydrogen supply system.
In order to achieve the above object, the present invention provides the following technical solutions, including:
the detection module is used for monitoring the hydrogen content around the hydrogen storage tank in real time;
the alarm module is used for outputting an alarm signal when detecting that the hydrogen storage tank has hydrogen leakage;
the pipeline cutting module is used for closing an output pipeline of the hydrogen storage tank when detecting that the hydrogen storage tank leaks hydrogen;
the plugging module is used for sealing the outer side of the hydrogen storage tank when detecting that the hydrogen storage tank leaks, so as to prevent the hydrogen from continuously leaking outwards; the plugging module comprises a mounting frame, a fixing part and a plugging part, wherein the fixing part is mounted on the mounting frame and used for fixing the hydrogen storage tank on the mounting frame; the plugging part is arranged on the fixing part and is used for wrapping the outer side of the hydrogen storage tank so as to prevent the leakage points on the hydrogen storage tank from continuing to leak;
the controller is used for receiving the detection data of the detection module, judging whether the hydrogen storage tank has a hydrogen leakage problem or not by comparing the detection data with a preset hydrogen content standard value, and if the detected hydrogen content value is larger than the preset hydrogen content standard value, considering that the hydrogen storage tank has the hydrogen leakage problem, and controlling the alarm module to output an alarm signal; and simultaneously controlling the plugging part to start, wrapping the outer side of the hydrogen storage tank, and plugging the leakage point.
Preferably, the number of the fixing parts is two, and the blocking part is arranged on one of the fixing parts.
Preferably, the fixing part comprises two clamping bodies, the two clamping bodies are assembled up and down symmetrically to form a complete ring body structure, and a sealing layer is fixedly arranged on one clamping side of the clamping bodies.
Preferably, the plugging part comprises a supporting body, a shrinkage groove is formed in one side of the clamping body, the supporting body is installed in the shrinkage groove, an inflator pump is fixedly installed at two ends of the supporting body, an inflatable bag is fixedly installed on one side of the supporting body, the inflatable bag can extend outwards after being inflated and wrap the outer side of the hydrogen storage tank, and the output end of the inflator pump is communicated with the inside of the inflatable bag through a pipeline.
Preferably, the plugging part further comprises two air inlet pipe fittings, the two air inlet pipe fittings are correspondingly arranged on the two clamping bodies, the air inlet pipe fittings comprise a main pipeline and two branch pipelines, the middle part of the main pipeline is communicated with the air inlet end of the inflator pump, the two branch pipelines are symmetrically embedded in the outer side of the clamping bodies, one end of each branch pipeline is communicated with the end part of the main pipeline, one end of each branch pipeline, which is close to the main pipeline, is provided with a control valve, the other end of each branch pipeline horizontally extends to the other fixed part, and air inlets are uniformly formed in the outer side of each branch pipeline.
Preferably, the plugging part further comprises four cleaning components, the four cleaning components are uniformly distributed on the outer side of the air inflation bag and are respectively in one-to-one correspondence with the positions of the four branch pipes, the cleaning components comprise a connecting body, one end of the connecting body is fixedly connected with the outer side of the air inflation bag, the other end of the connecting body is slidably sleeved on the outer side of the branch pipes, and a plurality of cleaning brush heads are fixedly installed on the inner side of the connecting body.
Preferably, the detection module comprises a plurality of hydrogen measurement sensors, and the plurality of hydrogen measurement sensors are uniformly distributed around the storage tank.
Preferably, the pipeline shut-off module comprises a plurality of valves mounted on an output pipeline in communication with the hydrogen storage tank.
Compared with the prior art, the invention has the following beneficial effects:
(1) The sealing module is mainly used for wrapping sealing the outer side of the hydrogen storage tank, so that the automatic sealing function of the alarm device is realized, the problem of hydrogen leakage is improved in time, the problem of leakage is prevented from being enlarged, and the alarm device not only has a detection function, but also has a sealing function on leakage points;
when the leakage point is detected to be the area between the two fixed parts, the air pump can be used for inflating the air bag, so that the air bag completely wraps the area between the two fixed parts, further, the hydrogen is prevented from continuing to leak outwards, the blocking manner is simple and rapid, the problem of hydrogen leakage can be timely slowed down, and sufficient time is provided for personnel in the vehicle to treat the problem of leakage;
in addition, the effective plugging area of the plugging part is a detection difficulty between two fixing parts, and can be effectively plugged no matter whether a single leakage point or a plurality of leakage points exist in the area, the coverage area is comprehensive, and the service environment of the hydrogen storage tank can be well matched.
(2) Through arranging the air inlet pipe fitting and matching with the inflator pump, the structure is used as an inflator pump gas conveying structure, the effect of the inflator pump on inflating the inflatable bag is not affected, meanwhile, the hydrogen gas communication air leaked near the leakage point can be filled into the inflatable bag together, so that the concentrated collection of part of the leaked hydrogen gas is realized, the concentration of the hydrogen gas around the leakage point is reduced, the surrounding environment of the hydrogen storage tank is in a relatively safe state, and the safety protection effect of the alarm device is further improved;
in addition, through setting up four branch pipes, and set up control valve on the branch pipe, can divide into four air inlet areas with the outside region of hydrogen storage jar equally, control valve through the controller control corresponding position switches on, realizes the accurate function of inhaling of hydrogen to the leak source position.
Drawings
FIG. 1 is a block diagram of a leakage alarm device of a vehicle-mounted hydrogen supply system;
FIG. 2 is a schematic diagram of a plugging module in a leakage alarm device of a vehicle-mounted hydrogen supply system;
FIG. 3 is an exploded view of a plugging module in a leak alarm device of a vehicle-mounted hydrogen supply system provided by the invention;
FIG. 4 is a schematic structural view of a clamping body in a leakage alarm device of a vehicle-mounted hydrogen supply system;
FIG. 5 is a schematic diagram of the structure between a plugging part and an air inlet pipe in a leakage alarm device of a vehicle-mounted hydrogen supply system;
FIG. 6 is a schematic diagram of a plugging part in a leakage alarm device of a vehicle-mounted hydrogen supply system;
FIG. 7 is a schematic structural diagram of an air inlet pipe in a leakage alarm device of a vehicle-mounted hydrogen supply system;
fig. 8 is a schematic structural diagram of a cleaning assembly in a leakage alarm device of a vehicle-mounted hydrogen supply system.
In the accompanying drawings: 1. a hydrogen storage tank; 2. plugging a module; 21. a mounting frame; 22. a fixing part; 221. a clamping body; 222. a sealing layer; 23. a blocking part; 231. a support body; 232. a shrink tank; 233. an inflator pump; 234. an inflatable bag; 24. an air inlet pipe fitting; 241. a main pipe; 242. a branch pipe; 243. a control valve; 244. an air inlet hole; 25. a cleaning assembly; 251. a connecting body; 252. a cleaning brush head.
Detailed Description
The following description is presented to enable one of ordinary skill in the art to make and use the invention. The preferred embodiments in the following description are by way of example only and other obvious variations will occur to those skilled in the art.
An embodiment of a leakage alarm device for a vehicle-mounted hydrogen supply system according to the present invention will be further described with reference to fig. 1 to 8.
A vehicle-mounted hydrogen supply system leakage alarm device, comprising: the device comprises a detection module, an alarm module, a pipeline cutting module, a plugging module 2 and a controller. The detection module is used for monitoring the hydrogen content around the hydrogen storage tank 1 in real time; the detection module comprises a plurality of hydrogen measuring sensors which are uniformly distributed around the storage tank, so that comprehensive hydrogen detection can be performed around the hydrogen storage tank 1, and the detection module sends detection results to the controller in real time, so that the controller can grasp the hydrogen condition outside the hydrogen storage tank 1 in real time; the hydrogen measuring sensor is a routine choice of a person skilled in the art, and the working principle and type thereof are not described here in detail.
The alarm module is used for outputting alarm signals when detecting that the hydrogen storage tank 1 is leaked, the alarm signals of the alarm module comprise digital signals and acousto-optic physical signals, the acousto-optic physical signals comprise a buzzer and an LED lamp, the digital signals are directly sent to a vehicle control system and finally displayed on a display screen, and personnel in the vehicle can be effectively reminded of knowing the conditions through various alarm signals.
The pipeline cutting module is used for closing an output pipeline of the hydrogen storage tank 1 when detecting that the hydrogen storage tank 1 leaks; the pipeline cutting module comprises a plurality of valves, the valves are arranged on an output pipeline communicated with the hydrogen storage tank 1, the valves can be electromagnetic valves, the controller can be used for automatically opening and closing the valves, and when the leakage problem of the output pipeline is detected, the corresponding valves can be controlled to be closed.
The plugging module 2 is used for sealing the outer side of the hydrogen storage tank 1 when detecting that the hydrogen storage tank 1 leaks, so as to prevent the hydrogen from leaking outwards continuously; the plugging module 2 comprises a mounting frame 21, fixing parts 22 and plugging parts 23, wherein the bottom of the mounting frame 21 is fixedly arranged at a preset mounting position of an automobile, the fixing parts 22 are arranged on the mounting frame 21 and used for fixing the hydrogen storage tank 1 on the mounting frame 21, two fixing parts 22 are arranged and symmetrically distributed at the left end and the right end of the mounting frame 21, and the plugging parts 23 are arranged on one of the fixing parts 22; the fixing part 22 comprises two clamping bodies 221, the two clamping bodies 221 are assembled up and down symmetrically to form a complete ring structure, one side clamped by the clamping bodies 221 is fixedly provided with a sealing layer 222, the sealing layer 222 is made of rubber, the outer side of the hydrogen storage tank 1 can be protected, and meanwhile, the outer side of the hydrogen storage tank 1 can be partially plugged, so that the fixing part 22 provided by the invention is not only used for fixing the hydrogen storage tank 1, but also can effectively plug a region clamped by the hydrogen storage tank 1, and is beneficial to avoiding the problem of hydrogen leakage in the clamping region.
The plugging part 23 wraps the outer side of the hydrogen storage tank 1 to prevent the leakage points on the hydrogen storage tank 1 from continuing to leak; the shutoff portion 23 includes the supporter 231, shrink groove 232 has been seted up to one side of the clamping body 221, the supporter 231 is installed in shrink groove 232, the equal fixed mounting in both ends of supporter 231 has pump 233, pump 233 is miniature pump 233, by controller control operation, one side fixed mounting of supporter 231 has balloon 234, balloon 234 is according to the supporting setting of structure of hydrogen storage tank 1, can outwards stretch out and wrap up the hydrogen storage tank 1 outside after balloon 234 inflates, the output of pump 233 communicates with the inside of balloon 234 through the pipeline.
When the plugging module 2 is installed, firstly, the plugging part 23 is required to be installed in the shrinkage groove 232, the fixing part 22 is firstly formed, the connecting ends of the two semicircular clamping bodies 221 are spliced together and then fixed by bolts, so that a complete torus structure is formed, the plugging part 23 is placed in the shrinkage groove 232, the supporting body 231 and the air-filled bag 234 are positioned in the shrinkage groove 232, the upper end and the lower end of the supporting body 231 are fixed with the outer sides of the clamping bodies 221 by bolts, then the air-filled pump 233 is installed on the supporting body 231, the fixing part 22 is sleeved at the end part of the hydrogen storage tank 1, the clamping bodies 221 are fixed with the outer sides of the hydrogen storage tank 1 by bolts, then the fixing part 22 and the hydrogen storage tank 1 are installed on the installation frame 21 together, and the contact position of the fixing part 22 and the installation frame 21 is fixed;
when the plugging module 2 is used, the two air pumps 233 are controlled by the controller to start to inflate the inside of the air bags 234, so that the air bags 234 gradually extend outwards and slowly wrap the outer sides of the hydrogen storage tanks 1, the air bags 234 completely wrap the area of the hydrogen storage tanks 1 between the two fixing parts 22, and the air bags 234 start to expand along with the continuous inflation of the air pumps 233 so that the air bags 234 are tightly attached to the outer sides of the hydrogen storage tanks 1 until the air bags 233 reach a required state, and the air pumps 233 stop running, so that the outer sides of the hydrogen storage tanks 1 are tightly wrapped by the air bags 234, and an effective plugging effect can be achieved; the plugging module 2 is arranged, so that the hydrogen storage tank is mainly used for wrapped plugging of the outer side of the hydrogen storage tank 1, an automatic plugging function of an alarm device is realized, the problem of hydrogen leakage is solved in time, and the expansion of the leakage problem is avoided; when the leakage point is detected as the area between the two fixed parts 22, the air pump 233 can be used for inflating the air bag 234, so that the air bag 234 fully wraps the area between the two fixed parts 22, further, the hydrogen is prevented from continuing to leak outwards, the blocking mode is simple and rapid, the problem of hydrogen leakage can be timely slowed down, and sufficient time is provided for personnel in the vehicle to solve; in addition, the effective plugging area of the plugging portion 23 is a detection difficulty between the two fixing portions 22, and can perform effective plugging no matter whether a single leakage point or a plurality of leakage points exist in the area, the coverage area is relatively comprehensive, and the service environment of the hydrogen storage tank 1 can be well matched.
The controller is used for receiving detection data of the detection module, wherein the controller is respectively connected with the detection module, the alarm module, the pipeline cutting module and the plugging module 2 through wireless signals or wired signals, so that the controller can control each functional module to operate, the controller belongs to conventional settings in the field, the types and the working principles of the controller are not repeated, whether the hydrogen storage tank 1 has a hydrogen leakage problem is judged by comparing the hydrogen storage tank 1 with a preset hydrogen content standard value, and if the detected hydrogen content value is larger than the preset hydrogen content standard value, the hydrogen leakage problem is considered to occur in the hydrogen storage tank 1, and the alarm module is controlled to output an alarm signal; simultaneously control shutoff portion 23 start, wrap up the hydrogen storage tank 1 outside, will reveal the point shutoff, use through the cooperation of controller and above-mentioned each functional module, realized automated inspection and automatic shutoff's function, as the safety precaution of hydrogen storage tank 1, promoted the security when hydrogen storage tank 1 uses.
As an embodiment of the present invention, in the above-mentioned scheme, if the hydrogen leakage of the hydrogen storage tank 1 is detected, it is proved that a part of the hydrogen flows out at this time, and in order to further improve the protection effect of the alarm device, the present invention further optimizes the above-mentioned scheme, specifically: the plugging part 23 further comprises two air inlet pipe fittings 24, the two air inlet pipe fittings 24 are correspondingly arranged on the two clamping bodies 221, the air inlet pipe fittings 24 comprise a main pipeline 241 and two branch pipelines 242, the middle part of the main pipeline 241 is communicated with the air inlet end of the inflator 233, the outer side of the clamping body 221 is provided with a mounting groove matched with the branch pipelines 242, so that the two branch pipelines 242 are symmetrically embedded in the outer side of the clamping body 221, one end of each branch pipeline 242 is communicated with the end part of the main pipeline 241, one end, close to the main pipeline 241, of each branch pipeline 242 is provided with a control valve 243, the control valve 243 can be an electromagnetic valve, the operation is controlled by a controller, the other end of each branch pipeline 242 horizontally extends to the position of the other fixing part 22, and the outer side of each branch pipeline 242 is uniformly provided with an air inlet hole 244;
when the air inlet pipe fitting 24 is installed, the main pipeline is connected with the air inlet end of the air pump 233, the air inlet end of the air pump 233 is modified to be communicated with the end part of the main pipeline, then the end parts of the two branch pipelines 242 are connected with the main pipeline 241, and finally the branch pipelines 242 are embedded in the installation groove, so that the branch pipelines 242 are kept fixed; when detecting that hydrogen leaks, the controller firstly judges the approximate position of the leaking point according to the detection result of the detection module, if the leaking point is at a single fixed position, at this time, the controller controls a control valve 243 on a branch pipe 242 corresponding to the leaking point to be opened, and control valves 243 on other branch pipes 242 keep a closed state, and simultaneously controls an inflator 233 to operate, at this time, suction force generated by the inflator 233 enables air and part of leaked hydrogen at the leaking point to enter through the branch pipe 242, and finally the air is inflated into an inflatable bag 234 by the inflator 233 after passing through the main pipe 241 until the inflatable bag 234 is inflated to a required state, the inflator 233 stops operating, and the control valve 243 on the branch pipe 242 is closed; if a plurality of leakage points exist, the controller simultaneously opens the control valve 243 on the branch pipe 242 corresponding to the plurality of leakage points; thus, through the arrangement of the air inlet pipe fitting 24 and the cooperation of the air inlet pipe fitting 233 and the air pump 233, the air pump 233 is used as an air conveying structure of the air pump 233, the air inflation effect of the air pump 233 on the air bag 234 is not affected, meanwhile, the hydrogen communication air leaked near the leakage point can be filled into the air bag 234 together, the concentrated collection of part of the leaked hydrogen is realized, the concentration of the hydrogen around the leakage point is reduced, the surrounding environment of the hydrogen storage tank 1 is in a relatively safe state, and the safety protection effect of the alarm device is further improved; in addition, by arranging four branch pipes 242 and arranging control valves 243 on the branch pipes 242, the external area of the hydrogen storage tank 1 can be equally divided into four air inlet areas, and the control valves 243 at corresponding positions are controlled to be conducted through a controller, so that the accurate hydrogen gas suction function at the positions of leakage points is realized.
As an embodiment of the present invention, in the above-mentioned scheme, since the bypass pipe 242 is exposed for a long time, the air inlet 244 provided thereon may be blocked by dust, thereby affecting the inflation speed of the inflator 233, and therefore, in order to solve the problem, the present invention further optimizes the above-mentioned scheme, specifically: the plugging part 23 further comprises four cleaning components 25, the four cleaning components 25 are uniformly distributed on the outer side of the inflatable bag 234 and respectively correspond to the positions of the four branch pipes 242 one by one, the cleaning components 25 comprise a connector 251, one end of the connector 251 is fixedly connected with the outer side of the inflatable bag 234, the other end of the connector 251 is slidably sleeved on the outer side of the branch pipe 242, four cleaning brush heads 252 are fixedly arranged on the inner side of the connector 251, and the cleaning brush heads 252 can be brushes and correspond to the positions of the air inlet holes 244 one by one;
when the cleaning component 25 is installed, after the air inlet pipe fitting 24 is installed, the connector 251 is sleeved on the branch pipe 242, then the connector 251 is moved to a position close to the outer side of the air charging bag 234, the other end of the connector 251 is fixed with the outer side of the air charging bag 234 by using a screw, and the installation positions of the connector 251 and the air charging bag 234 are matched according to the positions of the cleaning brush and the air inlet hole 244, so that after the connector 251 is fixed, the cleaning brush on the inner side of the connector 251 is exactly aligned with the air inlet hole 244; when the inflatable bag 234 is inflated, the inflatable bag 234 begins to extend outwards, and at the same time, the connector 251 is driven to slide along the outer side of the branch pipe 242, and the cleaning brush is in sliding contact with the outer side of the branch pipe 242, when the cleaning brush passes through the air inlet 244, dust blocked in the air inlet 244 can be cleaned by the action of the cleaning brush, so that the air inlet 244 is kept in a conducting state until the inflatable bag 234 is fully extended, and just the cleaning brush cleans all the air inlets 244 on the branch pipe 242; therefore, the cleaning assembly 25 is arranged, on one hand, the function of synchronously cleaning the air inlet 244 on the branch pipe 242 in the expansion and extension process of the air bag 234 is realized, so that the air inlet 244 is kept in a conducting state, and the problem that dust blocks the air inlet 244 to influence the air inflation speed of the air bag 234 is avoided; on the other hand, the connector 251 slides on the branch pipe 242, so that the movable end of the inflatable bag 234 can be limited, and can be smoothly and naturally unfolded along a standard route in the stretching process, so that the stability of the inflatable bag 234 in unfolding is improved.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above examples, and all technical solutions belonging to the concept of the present invention belong to the protection scope of the present invention. It should be noted that modifications and adaptations to the present invention may occur to one skilled in the art without departing from the principles of the present invention and are intended to be within the scope of the present invention.
Claims (8)
1. The utility model provides a on-vehicle hydrogen supply system reveals alarm device which characterized in that includes:
the detection module is used for monitoring the hydrogen content around the hydrogen storage tank (1) in real time;
the alarm module is used for outputting an alarm signal when detecting that the hydrogen storage tank (1) has hydrogen leakage;
the pipeline cutting module is used for closing an output pipeline of the hydrogen storage tank (1) when detecting that the hydrogen storage tank (1) leaks hydrogen;
the plugging module (2) is used for sealing the outer side of the hydrogen storage tank (1) when detecting that the hydrogen storage tank (1) leaks, so as to prevent the hydrogen from leaking outwards continuously; the plugging module (2) comprises a mounting frame (21), a fixing part (22) and a plugging part (23), wherein the fixing part (22) is mounted on the mounting frame (21) and is used for fixing the hydrogen storage tank (1) on the mounting frame (21); the plugging part (23) is arranged on the fixing part (22) and is used for wrapping the outer side of the hydrogen storage tank (1) so as to prevent the leakage points on the hydrogen storage tank (1) from continuing to leak;
the controller is used for receiving the detection data of the detection module, judging whether the hydrogen storage tank (1) has a hydrogen leakage problem or not by comparing the detection data with a preset hydrogen content standard value, and if the detected hydrogen content value is larger than the preset hydrogen content standard value, considering the hydrogen leakage problem of the hydrogen storage tank (1), and controlling the alarm module to output an alarm signal; and meanwhile, the plugging part (23) is controlled to start, the outside of the hydrogen storage tank (1) is wrapped, and the leakage point is plugged.
2. The vehicle-mounted hydrogen supply system leakage alarm device according to claim 1, wherein the number of the fixing portions (22) is two, and the blocking portion (23) is provided on one of the fixing portions (22).
3. The vehicle-mounted hydrogen supply system leakage alarm device according to claim 2, wherein the fixing part (22) comprises two clamping bodies (221), the two clamping bodies (221) are assembled up and down symmetrically to form a complete ring structure, and a sealing layer (222) is fixedly arranged on one clamping side of the clamping bodies (221).
4. The vehicle-mounted hydrogen supply system leakage alarm device according to claim 3, wherein the blocking portion (23) comprises a supporting body (231), a shrinkage groove (232) is formed in one side of the clamping body (221), the supporting body (231) is installed in the shrinkage groove (232), an inflator pump (233) is fixedly installed at two ends of the supporting body (231), an inflatable bag (234) is fixedly installed at one side of the supporting body (231), the inflatable bag (234) can extend outwards after being inflated and wrap the outer side of the hydrogen storage tank (1), and the output end of the inflator pump (233) is communicated with the inside of the inflatable bag (234) through a pipeline.
5. The vehicle-mounted hydrogen supply system leakage alarm device according to claim 4, wherein the blocking portion (23) further comprises two air inlet pipe fittings (24), the two air inlet pipe fittings (24) are correspondingly arranged on the two clamping bodies (221), the air inlet pipe fittings (24) comprise a main pipe (241) and two branch pipes (242), the middle part of the main pipe (241) is communicated with the air inlet end of the inflator pump (233), the two branch pipes (242) are symmetrically embedded in the outer side of the clamping bodies (221), one end of each branch pipe (242) is communicated with the end of each main pipe (241), one end of each branch pipe (242) close to the main pipe (241) is provided with a control valve (243), the other end of each branch pipe (242) horizontally extends to the other fixing portion (22), and air inlets (244) are uniformly formed in the outer side of each branch pipe (242).
6. The vehicle-mounted hydrogen supply system leakage alarm device according to claim 5, wherein the blocking portion (23) further comprises four cleaning components (25), the four cleaning components (25) are uniformly distributed on the outer sides of the inflatable bags (234) and are respectively in one-to-one correspondence with the positions of the four branch pipes (242), the cleaning components (25) comprise a connector (251), one end of the connector (251) is fixedly connected with the outer sides of the inflatable bags (234), the other end of the connector (251) is slidably sleeved on the outer sides of the branch pipes (242), and a plurality of cleaning brush heads (252) are fixedly installed on the inner sides of the connector (251).
7. The on-vehicle hydrogen supply system leakage alarm device of claim 1, wherein the detection module comprises a plurality of hydrogen measurement sensors, the plurality of hydrogen measurement sensors being evenly distributed around the tank.
8. The on-vehicle hydrogen supply system leakage alarm device according to claim 1, wherein the pipeline shut-off module comprises a plurality of valves mounted on an output pipeline communicating with the hydrogen storage tank (1).
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| CN202410078163.5A CN117570364B (en) | 2024-01-19 | 2024-01-19 | Leakage alarm device of vehicle-mounted hydrogen supply system |
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| CN117906861A (en) * | 2024-03-18 | 2024-04-19 | 潍坊恩源信息科技有限公司 | Hydrogen leakage detection system of hydrogen energy equipment |
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| CN117570364B (en) | 2024-08-16 |
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