CN112197167A - Vehicle-mounted hydrogen storage bottle air tightness early warning monitoring system - Google Patents

Vehicle-mounted hydrogen storage bottle air tightness early warning monitoring system Download PDF

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Publication number
CN112197167A
CN112197167A CN202011073157.9A CN202011073157A CN112197167A CN 112197167 A CN112197167 A CN 112197167A CN 202011073157 A CN202011073157 A CN 202011073157A CN 112197167 A CN112197167 A CN 112197167A
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Prior art keywords
hydrogen storage
detection
sensing
sliding
ring
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CN202011073157.9A
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CN112197167B (en
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张耕
夏莉
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Guangdong Special Equipment Inspection And Research Institute (guangdong Special Equipment Accident Investigation Center)
South China University of Technology SCUT
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GUANGDONG INSTITUTE OF SPECIAL EQUIPMENT INSPECTION
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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
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
    • B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
    • B65H75/34—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables
    • B65H75/38—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables involving the use of a core or former internal to, and supporting, a stored package of material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
    • B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
    • B65H75/34—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables
    • B65H75/38—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables involving the use of a core or former internal to, and supporting, a stored package of material
    • B65H75/44—Constructional details
    • 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
    • F17C13/025—Special adaptations of indicating, measuring, or monitoring equipment having the pressure as the parameter
    • 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
    • F17C13/026—Special adaptations of indicating, measuring, or monitoring equipment having the temperature as the parameter
    • 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
    • F17C13/12—Arrangements or mounting of devices for preventing or minimising the effect of explosion ; Other safety measures
    • 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
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
    • F17C2223/0146—Two-phase
    • F17C2223/0153—Liquefied gas, e.g. LPG, GPL
    • 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
    • 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
    • F17C2250/043—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
    • 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
    • F17C2250/0439—Temperature
    • 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
    • F17C2260/00—Purposes of gas storage and gas handling
    • F17C2260/04—Reducing risks and environmental impact
    • F17C2260/042—Reducing risk of explosion
    • 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
    • F17C2270/0168—Applications for fluid transport or storage on the road by vehicles
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/32—Hydrogen storage

Abstract

The invention provides a vehicle-mounted hydrogen storage bottle air tightness early warning monitoring system which comprises a detection device, a sensing device, an adjusting device, a leakage detection device, a processing device and a processor, wherein the detection device is used for detecting a hydrogen storage bottle and is matched with the sensing device to measure or sense the air tightness of the hydrogen storage bottle; the adjusting device is configured to adjust the sensitivity of the sensing device; the leak detection device is configured to detect a leak point of the hydrogen storage bottle; the processing means is configured to trigger an early warning signal in response to the detected parameters. According to the invention, the induction wire, the tension sensor and the induction plate are initialized, so that the change of the hydrogen storage bottle can be quickly induced after the induction wire passes through the set tension, and the induction capability of the hydrogen storage bottle is improved.

Description

Vehicle-mounted hydrogen storage bottle air tightness early warning monitoring system
Technical Field
The invention relates to the technical field of hydrogen storage, in particular to a vehicle-mounted hydrogen storage cylinder airtightness early warning and monitoring system.
Background
In order to avoid the consequences of the catastrophic accident, the plug of the vehicle-mounted high-pressure hydrogen storage system must be melted by the hot-melting pressure relief device TPRD in a fire environment, and the pressure in the hydrogen storage bottle can be released in time by opening the hot-melting pressure relief device, so that the consequences of the catastrophic explosion accident are avoided.
For example, CN201920420032.5 prior art discloses an urban natural gas pipeline natural gas leakage early warning system, and as urban natural gas is used more and more widely, the number of urban natural gas pipelines increases, and in the process of urban road maintenance or other infrastructure, the natural gas pipelines are subject to wear to different degrees. The existing urban pipeline natural gas detection system cannot detect the effective air tightness of each transportation pipeline, and the early warning effect is not ideal. Another typical prior art device disclosed in WO2015124093a1 discloses a high air tightness device, and a product air tightness detection device and a detection method thereof disclosed in WO2020082374a1 disclose a high air tightness device, since the leakage point in the air tightness system is only a single component in a certain module, the leakage point can be detected only at the module level by using the existing detection method, and the replacement or maintenance of the module level inevitably causes a condition of too long maintenance period and too high cost. Therefore, the existing method for detecting the air tightness has the problems of complex maintenance process, low efficiency, poor accuracy and high cost.
The invention aims to solve the problems that the prior art is lack of early warning means, unsatisfactory in early warning effect, unavailable in leakage point, long in overhaul period, low in efficiency, poor in accuracy and the like.
Disclosure of Invention
The invention aims to provide a vehicle-mounted hydrogen storage bottle air tightness early warning and monitoring system aiming at the defects of the existing hydrogen storage.
In order to overcome the defects of the prior art, the invention adopts the following technical scheme:
a vehicle-mounted hydrogen storage bottle air tightness early warning monitoring system comprises a detection device, a sensing device, an adjusting device, a leakage detection device, a processing device and a processor, wherein the detection device is used for detecting a hydrogen storage bottle and is matched with the sensing device to measure or sense the air tightness of the hydrogen storage bottle; the adjusting device is configured to adjust the sensitivity of the sensing device; the leak detection device is configured to detect a leak point of the hydrogen storage bottle; the processing means is configured to trigger an early warning signal in response to the detected parameters.
Optionally, the detection device comprises a detection chamber, a detection element and a pumping mechanism, wherein the detection chamber is configured to be nested and coaxially arranged with the hydrogen storage bottle; the detection element is configured to detect a pressure in the detection chamber; the air pumping mechanism is connected with the detection cavity and used for adjusting the pressure of the air in the air pumping cavity; the air pumping mechanism comprises an air pumping pump, a connecting valve and a backflow passage, the air pumping pump is configured to be connected with the connecting valve and the backflow passage, and the connecting valve is configured to communicate the gas in the detection cavity and the gas outside the detection cavity; the return passage is configured to connect the connection valve and the air passage of the suction pump.
Optionally, induction system includes tablet, response mechanism and transmission unit, the tablet is constructed to set up on the hydrogen storage bottle, response mechanism is constructed to set up on the tablet, just response mechanism is constructed to be right the deflection of tablet detects, transmission unit is constructed to be right the detection signal of response mechanism gather and with the treater transmits, the treater triggers early warning signal based on the rule of setting for.
Optionally, the adjusting device comprises an adjusting ring and an adjusting mechanism, the adjusting ring is configured to adjust the sensing sensitivity of the sensing device, and the adjusting mechanism is configured to adjust the sensitivity based on the control parameter of the processor; the adjustment mechanism is configured to be in driving connection with the adjustment ring; the adjusting mechanism is configured to adjust the circumference of the adjusting ring, the adjusting mechanism comprises a limiting rope, a recovery seat and a recovery driving mechanism, the adjusting ring is provided with a limiting cavity for the limiting rope to move, the limiting rope is configured to adjust the circumference of the adjusting ring in the limiting cavity of the adjusting ring, the recovery driving mechanism is configured to drive the recovery seat, one end of the limiting rope is connected with the recovery seat, and the other end of the limiting rope is connected with the adjusting ring.
Optionally, the leakage detection device comprises a detection ring and a sliding mechanism, wherein the detection ring is configured to be arranged on the sliding mechanism and slide along the length direction of the hydrogen storage bottle under the driving of the sliding mechanism; the sliding mechanism comprises a support ring, a plurality of sliding rails, a sliding driving mechanism and a plurality of sliding seats, each sliding seat is configured to be in sliding connection with each sliding rail, the sliding driving mechanism is configured to be driven by each sliding seat, the support ring is configured to be in driving connection with the sliding seat, and each sliding seat is configured to be distributed at equal intervals along the periphery of the support ring and fixedly connected with the periphery of the support ring; the detection ring is configured to be disposed coaxially with and coupled to the support ring.
Optionally, the processing device includes a data acquisition unit and a verification unit, and the acquisition unit is configured to acquire detection data of the detection device and the sensing device, and trigger an early warning signal according to a set rule based on the detection data; the verification unit is configured to verify data of the leak detection device and detect and verify where the gas tightness of the hydrogen storage bottle changes the most; the verification unit is further configured to trigger an early warning signal based on data of the leak detection device and to transmit the early warning signal to the processor.
Optionally, response mechanism includes a plurality of response line, swivel becket and rotation actuating mechanism, the tablet is equipped with and supplies each a plurality of response chamber that the response line held, each the response chamber is constructed as right with each the response chamber is nested each other, and each the one end of response line and each the dead end fixed connection in response chamber, each the other end of response line is constructed as with the swivel becket is connected, the swivel becket be constructed as with rotation actuating mechanism drive connection.
Optionally, the adjustment ring comprises a plurality of connecting pieces and respective connecting plates, each of the connecting plates being stacked around each other, each of the connecting pieces being configured to connect two of the connecting plates.
Optionally, the detection ring comprises a detection probe and a detection algorithm, and the detection probe is configured to detect the gas tightness of the hydrogen storage bottle.
Optionally, the detection algorithm includes collecting an initial position, and determining the initial position of the sliding mechanism according to equation (1),
Plocation＝n0A(n)+k∑l＝0(A(n))+nn[A(n)-A(n-1)] (1)
k is a position conversion coefficient, the value range is between 0.2 and 1, and n is0To detect the initial position of the ring, n is an arbitrary integer.
The beneficial effects obtained by the invention are as follows:
1. the gas pumping mechanism is used for evacuating the environment in the detection cavity and detecting the hydrogen content in the hydrogen storage bottle through the detection element, so that the influence of other gases on the detection precision and the detection precision is prevented;
2. by adopting the induction line, the tension sensor and the induction plate which need to be initialized, the change of the hydrogen storage bottle can be quickly induced after the induction line passes through the set tension, and the induction capability of the hydrogen storage bottle is improved;
3. the head end of the limiting cavity of the adjusting ring is connected with one end of the limiting rope of the adjusting mechanism, and the other end of the limiting rope is connected with the recovery seat, so that the limiting rope is recovered under the driving operation of the recovery driving mechanism, and the limiting rope can be wound on the recovery seat;
4. the leakage detection device is matched with the detection device and the induction device, and the early warning signal can be triggered efficiently through the transmission operation of the data link, so that the whole system can be ensured to monitor the hydrogen storage bottle in real time;
5. and an operation configured to detect a change in the location of the hydrogen storage cylinder and parameters such as concentration, pressure, etc. of the hydrogen storage cylinder by using a detection algorithm, and verify the leak detection device based on the detected data.
Drawings
The invention will be further understood from the following description in conjunction with the accompanying drawings. The components in the figures are not necessarily to scale, emphasis instead being placed upon illustrating the principles of the embodiments. Like reference numerals designate corresponding parts throughout the different views.
FIG. 1 is a schematic control flow diagram of the present invention.
Fig. 2 is a schematic view of the structure of the hydrogen storage bottle and the sensing plate.
Fig. 3 is a schematic structural view of the induction plate.
Fig. 4 is a schematic structural view of the hydrogen storage bottle and the leak detection device.
Fig. 5 is a schematic cross-sectional view of the leak detection device.
Fig. 6 is a schematic structural diagram of the adjusting ring.
Fig. 7 is a schematic view of the structure at a in fig. 6.
The reference numbers illustrate: 1-hydrogen storage bottle; 2-induction plate; 3-an air exhaust mechanism; 4-induction lines; 5-rotating the ring; 6-support ring; 7-a sliding track; 8-a sliding seat; 9-detection ring; 10-a connecting plate; 11-a recovery base; 12-a restraining rope; 13-a confinement chamber.
Detailed Description
In order to make the objects and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the following embodiments; it should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. Other systems, methods, and/or features of the present embodiments will become apparent to those skilled in the art upon review of the following detailed description. It is intended that all such additional systems, methods, features and advantages be included within this description, be within the scope of the invention, and be protected by the accompanying claims. Additional features of the disclosed embodiments are described in, and will be apparent from, the detailed description that follows.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by the terms "upper" and "lower" and "left" and "right" etc., it is only for convenience of description and simplification of the description based on the orientation or positional relationship shown in the drawings, but it is not indicated or implied that the device or assembly referred to must have a specific orientation.
The first embodiment is as follows: a vehicle-mounted hydrogen storage bottle air tightness early warning monitoring system comprises a detection device, a sensing device, an adjusting device, a leakage detection device, a processing device and a processor, wherein the detection device is used for detecting a hydrogen storage bottle and is matched with the sensing device to measure or sense the air tightness of the hydrogen storage bottle; the adjusting device is configured to adjust the sensitivity of the sensing device; the leak detection device is configured to detect a leak point of the hydrogen storage bottle; the processing device is configured to trigger an early warning signal for the synthetically detected parameters; the detection device comprises a detection cavity, a detection element and a pumping mechanism, wherein the detection cavity is nested with the hydrogen storage bottle and is coaxially arranged; the detection element is configured to detect a pressure in the detection chamber; the air pumping mechanism is connected with the detection cavity and used for adjusting the pressure of the air in the air pumping cavity; the air pumping mechanism comprises an air pumping pump, a connecting valve and a backflow passage, the air pumping pump is configured to be connected with the connecting valve and the backflow passage, and the connecting valve is configured to communicate the gas in the detection cavity and the gas outside the detection cavity; the return passage is configured to connect the connection valve and an air passage of the suction pump; the sensing device comprises a sensing plate, a sensing mechanism and a transmission unit, wherein the sensing plate is configured to be arranged on the hydrogen storage bottle, the sensing mechanism is configured to be arranged on the sensing plate, the sensing mechanism is configured to detect the deformation amount of the sensing plate, the transmission unit is configured to collect the detection signal of the sensing mechanism and transmit the detection signal with the processor, and the processor triggers an early warning signal based on a set rule; the adjustment device includes an adjustment loop configured to adjust a sensitivity of the sensing device and an adjustment mechanism configured to adjust the sensitivity based on a control parameter of the processor; the adjustment mechanism is configured to be in driving connection with the adjustment ring; the adjusting mechanism is configured to adjust the circumference of the adjusting ring, the adjusting mechanism comprises a limiting rope, a recovery seat and a recovery driving mechanism, the adjusting ring is provided with a limiting cavity for the limiting rope to move, the limiting rope is configured to adjust the circumference of the adjusting ring in the limiting cavity of the adjusting ring, the recovery driving mechanism is configured to drive the recovery seat, one end of the limiting rope is connected with the recovery seat, and the other end of the limiting rope is connected with the adjusting ring; the leakage detection device comprises a detection ring and a sliding mechanism, wherein the detection ring is arranged on the sliding mechanism and driven by the sliding mechanism to slide along the length direction of the hydrogen storage bottle; the sliding mechanism comprises a support ring, a plurality of sliding rails, a sliding driving mechanism and a plurality of sliding seats, each sliding seat is configured to be in sliding connection with each sliding rail, the sliding driving mechanism is configured to be driven by each sliding seat, the support ring is configured to be in driving connection with the sliding seat, and each sliding seat is configured to be distributed at equal intervals along the periphery of the support ring and fixedly connected with the periphery of the support ring; the detection ring is configured to be coaxially arranged with the support ring and connected with the support ring; the processing device comprises a data acquisition unit and a verification unit, wherein the acquisition unit is configured to acquire detection data of the detection device and the induction device and trigger an early warning signal according to a set rule based on the detection data; the verification unit is configured to verify data of the leak detection device and detect and verify where the gas tightness of the hydrogen storage bottle changes the most; the verification unit is further configured to trigger an early warning signal based on data of the leak detection device and to transmit the early warning signal to the processor; the induction mechanism comprises a plurality of induction lines, a rotating ring and a rotation driving mechanism, the induction plate is provided with a plurality of induction cavities for accommodating the induction lines, each induction cavity is constructed to be mutually nested with each induction cavity, one end of each induction line is fixedly connected with the end of each induction cavity, the other end of each induction line is constructed to be connected with the rotating ring, and the rotating ring is constructed to be in driving connection with the rotation driving mechanism; the adjusting ring comprises a plurality of connecting pieces and connecting plates, wherein the connecting plates are mutually stacked in a surrounding manner, and each connecting piece is configured to connect two connecting plates; the detection ring comprises a detection probe and a detection algorithm, and the detection probe is configured to detect the air tightness of the hydrogen storage bottle; the detection algorithm comprises collecting an initial position, and determining the initial position of the sliding mechanism according to equation (1),
Plocation＝n0A(n)+k∑l＝0(A(n))+nn[A(n)-A(n-1)] (1)
k is the position conversion coefficient, and the value range is between 0.2 ~ 1, and this embodiment value is: 0.5, n0To detect the initial position of the ring, n is an arbitrary integer.
Example two: the present embodiment should be understood to at least include all the features of any one of the foregoing embodiments and further improve on the basis thereof, and in particular, provide an on-vehicle hydrogen storage cylinder airtightness early warning and monitoring system, which includes a detection device, a sensing device, an adjustment device, a leakage detection device, a processing device and a processor, wherein the detection device is configured to detect a hydrogen storage cylinder and cooperate with the sensing device to measure or sense the airtightness of the hydrogen storage cylinder; the adjusting device is configured to adjust the sensitivity of the sensing device; the leak detection device is configured to detect a leak point of the hydrogen storage bottle; the processing device is configured to trigger an early warning signal for the synthetically detected parameters; specifically, the detection device and the sensing device respectively detect the air tightness of the hydrogen storage bottle, and the processing device processes the acquired data, in this embodiment, the adjustment device adjusts the sensitivity of the sensing device, and can adjust the sensitivity according to the set sensitivity; in this embodiment, the processor is respectively in control connection with the detection device, the sensing device, the adjustment device, the leakage detection device and the processing device, and performs adjustment operation among the devices under the hitting operation of the processor; in addition, the early warning monitoring system can also monitor the storage capacity or the gas state in the hydrogen storage bottle, so that the safety of the hydrogen is effectively ensured; in this embodiment, the hydrogen gas is a dangerous gas and has a risk of explosion, so the early warning of the gas tightness is particularly important; in this embodiment, the processing device performs a fast transmission operation on the acquired signal to ensure that the early warning signal can be transmitted, so that the hydrogen storage bottle can be safely stored; in this embodiment, the hydrogen storage cylinder stores liquid hydrogen;
the detection device comprises a detection cavity, a detection element and a pumping mechanism, wherein the detection cavity is nested with the hydrogen storage bottle and is coaxially arranged; the detection element is configured to detect a pressure in the detection chamber; the air pumping mechanism is connected with the detection cavity and used for adjusting the pressure of the air in the air pumping cavity; the air pumping mechanism comprises an air pumping pump, a connecting valve and a backflow passage, the air pumping pump is configured to be connected with the connecting valve and the backflow passage, and the connecting valve is configured to communicate the gas in the detection cavity and the gas outside the detection cavity; the return passage is configured to connect the connection valve and an air passage of the suction pump; specifically, the detection device is arranged on the periphery of the hydrogen storage bottle and is nested with the hydrogen storage bottle, so that the air tightness of the hydrogen storage bottle can be detected; in addition, the detection chamber is nested with the hydrogen storage bottle, namely: the detection cavity is arranged on the periphery of the hydrogen storage bottle, and the hydrogen storage bottle and the detection cavity are coaxially arranged; the detection elements are disposed at the head end and the tail end of the detection chamber, and the detection elements include, but are not limited to, the following listed ones: sensors commonly used for detecting air tightness, such as a gas sensor, a temperature sensor, a pressure sensor and the like; the air pumping mechanism is used for evacuating the environment in the detection cavity and detecting the hydrogen content in the hydrogen storage bottle through the detection element, so that the influence of other gases on the detection precision and the detection precision is prevented;
the sensing device comprises a sensing plate, a sensing mechanism and a transmission unit, wherein the sensing plate is configured to be arranged on the hydrogen storage bottle, the sensing mechanism is configured to be arranged on the sensing plate, the sensing mechanism is configured to detect the deformation amount of the sensing plate, the transmission unit is configured to collect the detection signal of the sensing mechanism and transmit the detection signal with the processor, and the processor triggers an early warning signal based on a set rule; specifically, the induction mechanism comprises a plurality of induction lines, a rotating ring and a rotation driving mechanism, the induction plate is provided with a plurality of induction cavities for accommodating the induction lines, each induction cavity is constructed to be mutually nested with each induction cavity, one end of each induction line is fixedly connected with the end of each induction cavity, the other end of each induction line is constructed to be connected with the rotating ring, and the rotating ring is constructed to be in driving connection with the rotation driving mechanism; the sensing plate is configured in a wave shape and is connected with the outer wall of the hydrogen storage bottle so that the deformation amount of the hydrogen storage bottle or the air tightness of the hydrogen storage bottle can be sensed; the induction mechanism is arranged on the induction plate and is used for inducing the air tightness of the hydrogen storage bottle; in this embodiment, the sensing cavity provided on the sensing board is used for storing the sensing line, and recovering or adjusting the sensing line under the action of the rotating ring, in this embodiment, the process of recovering the sensing line by the rotating ring is a process of adjusting the sensitivity of the sensing mechanism, in this embodiment, the tail end and the head end of the sensing line are configured to be provided with a tension sensor for detection, so that the change of the pressure of the sensing line can achieve an accurate detection effect; meanwhile, in this embodiment, the induction line, the tension sensor and the induction plate need to be initialized, so that the induction line can quickly induce the change of the hydrogen storage bottle after the set tension, thereby improving the induction capability of the hydrogen storage bottle;
the adjustment device includes an adjustment loop configured to adjust a sensitivity of the sensing device and an adjustment mechanism configured to adjust the sensitivity based on a control parameter of the processor; the adjustment mechanism is configured to be in driving connection with the adjustment ring; the adjusting mechanism is configured to adjust the circumference of the adjusting ring, the adjusting mechanism comprises a limiting rope, a recovery seat and a recovery driving mechanism, the adjusting ring is provided with a limiting cavity for the limiting rope to move, the limiting rope is configured to adjust the circumference of the adjusting ring in the limiting cavity of the adjusting ring, the recovery driving mechanism is configured to drive the recovery seat, one end of the limiting rope is connected with the recovery seat, and the other end of the limiting rope is connected with the adjusting ring; specifically, the adjusting ring comprises a plurality of connecting pieces and connecting plates, wherein the connecting plates are stacked around each other, and each connecting piece is configured to connect two connecting plates; specifically, the sensing plate is arranged on the adjusting ring and switches the position of the sensing ring, in this embodiment, the adjusting ring is configured to be nested with the hydrogen storage bottle, so that the sensing device can be always tightly attached to the periphery of the hydrogen storage bottle and monitor the air tightness of the hydrogen storage bottle; in this embodiment, one end of the limiting rope of the adjusting mechanism is connected with the head end of the limiting cavity of the adjusting ring, and the other end of the limiting rope is connected with the recovery seat, so that the limiting rope is recovered under the driving operation of the recovery driving mechanism, and the limiting rope can be ensured to be wound on the recovery seat; in this embodiment, the recovery driving mechanism is provided on the recovery base and performs a recovery operation of the restricting cord; additionally, the adjustment mechanism further adjusts a tightness of the adjustment ring to the hydrogen storage cylinder based on processing operations of the processor;
the leakage detection device comprises a detection ring and a sliding mechanism, wherein the detection ring is arranged on the sliding mechanism and driven by the sliding mechanism to slide along the length direction of the hydrogen storage bottle; the sliding mechanism comprises a support ring, a plurality of sliding rails, a sliding driving mechanism and a plurality of sliding seats, each sliding seat is configured to be in sliding connection with each sliding rail, the sliding driving mechanism is configured to be driven by each sliding seat, the support ring is configured to be in driving connection with the sliding seat, and each sliding seat is configured to be distributed at equal intervals along the periphery of the support ring and fixedly connected with the periphery of the support ring; the detection ring is configured to be coaxially arranged with the support ring and connected with the support ring; specifically, the detection ring comprises a detection probe and a detection algorithm, wherein the detection probe is configured to detect the air tightness of the hydrogen storage bottle; specifically, the leak detection device is configured to detect the gas tightness of the hydrogen storage bottle; in addition, the leakage detection device slides back and forth along the length direction of the hydrogen storage bottle; in this embodiment, the sliding mechanism is configured to nest with the hydrogen storage cylinder, i.e.: the sliding mechanism slides along the length direction of the hydrogen storage screen; in this embodiment, the support ring is disposed coaxially with the hydrogen storage cylinder such that the sliding mechanism is slidable along a length direction of the hydrogen storage cylinder; each sliding rail is parallel to the axis of the hydrogen storage bottle, and each supporting ring supports each sliding rail; the outer peripheries of the detection rings are respectively connected with the sliding seats at equal intervals, the sliding seats are configured to be in sliding connection with the sliding rails, the sliding mechanisms are configured to be in sliding connection with the sliding seats, and the sliding seats are configured to slide along the length direction of the sliding rails; the sliding mechanism further comprises a plurality of position markers, and each position marker is configured to be distributed at equal intervals along the extending direction of each sliding track; the sliding seat is configured to be in sliding clamping connection with each sliding rail and slides under the driving operation of the sliding driving mechanism; in this embodiment, a closed loop feedback is formed among the detection ring, the sliding seat, the position marker and the processor, that is: the sliding seat drives the detection ring to slide on the sliding track, at the moment, each position mark piece obtains the position of the sliding seat, the position of the sliding seat is transmitted to the processor, the processor receives the position mark of the sliding seat and compares the position mark with a set position mark, and if the position mark is not consistent with the set position mark, the sliding seat is continuously driven by the sliding driving mechanism until the sliding seat moves to the set position;
the processing device comprises a data acquisition unit and a verification unit, wherein the acquisition unit is configured to acquire detection data of the detection device and the induction device and trigger an early warning signal according to a set rule based on the detection data; the verification unit is configured to verify data of the leak detection device and detect and verify where the gas tightness of the hydrogen storage bottle changes the most; the verification unit is further configured to trigger an early warning signal based on data of the leak detection device and to transmit the early warning signal to the processor; specifically, the processing device collects data of the sensing device and the detection device, and processes the data based on the collected data; meanwhile, in the embodiment, the data collected by the data collection unit is processed, and the processing operation includes, but is not limited to, the following listed several operations: data format conversion, standard signal data signal and other operations, so that after the data are collected, the processing operation can be rapidly carried out; in addition, the verification unit verifies the data, so that the verification unit can perform rapid verification operation on the whole device during detection operation or induction operation of the sensing device and the detection device; in addition, the verification unit is also used for repeatedly testing the detection of the leakage detection device to prevent the leakage detection device from misjudging the early warning signal; in this embodiment, the leak detection device is further used in cooperation with the detection device and the sensing device, and the early warning signal can be triggered efficiently through the transmission operation of the data link, so that the whole system can monitor the hydrogen storage bottle in real time; for the operation of the transmission of the data link, the method is well known to those skilled in the art, and those skilled in the art can query a relevant technical manual to know the method of the transmission, so that details are not repeated in this embodiment.
Example three: the present embodiment should be understood to at least include all the features of any one of the foregoing embodiments and further improve on the basis thereof, and in particular, provide an on-vehicle hydrogen storage cylinder airtightness early warning and monitoring system, which includes a detection device, a sensing device, an adjustment device, a leakage detection device, a processing device and a processor, wherein the detection device is configured to detect a hydrogen storage cylinder and cooperate with the sensing device to measure or sense the airtightness of the hydrogen storage cylinder; the adjusting device is configured to adjust the sensitivity of the sensing device; the leak detection device is configured to detect a leak point of the hydrogen storage bottle; the processing device is configured to trigger an early warning signal for the synthetically detected parameters;
the leakage detection device comprises a detection ring and a sliding mechanism, wherein the detection ring is arranged on the sliding mechanism and driven by the sliding mechanism to slide along the length direction of the hydrogen storage bottle; the sliding mechanism comprises a support ring, a plurality of sliding rails, a sliding driving mechanism and a plurality of sliding seats, each sliding seat is configured to be in sliding connection with each sliding rail, the sliding driving mechanism is configured to be driven by each sliding seat, the support ring is configured to be in driving connection with the sliding seat, and each sliding seat is configured to be distributed at equal intervals along the periphery of the support ring and fixedly connected with the periphery of the support ring; the detection ring is configured to be coaxially arranged with the support ring and connected with the support ring; specifically, the leak detection device is configured to detect the gas tightness of the hydrogen storage bottle; in addition, the leakage detection device slides back and forth along the length direction of the hydrogen storage bottle; in this embodiment, the sliding mechanism is configured to nest with the hydrogen storage cylinder, i.e.: the sliding mechanism slides along the length direction of the hydrogen storage screen; in this embodiment, the support ring is disposed coaxially with the hydrogen storage cylinder such that the sliding mechanism is slidable along a length direction of the hydrogen storage cylinder; each sliding rail is parallel to the axis of the hydrogen storage bottle, and each supporting ring supports each sliding rail; the outer peripheries of the detection rings are respectively connected with the sliding seats at equal intervals, the sliding seats are configured to be in sliding connection with the sliding rails, the sliding mechanisms are configured to be in sliding connection with the sliding seats, and the sliding seats are configured to slide along the length direction of the sliding rails; the sliding mechanism further comprises a plurality of position markers, and each position marker is configured to be distributed at equal intervals along the extending direction of each sliding track; the sliding seat is configured to be in sliding clamping connection with each sliding rail and slides under the driving operation of the sliding driving mechanism; in this embodiment, a closed loop feedback is formed among the detection ring, the sliding seat, the position marker and the processor, that is: the sliding seat drives the detection ring to slide on the sliding track, at the moment, each position mark piece obtains the position of the sliding seat, the position of the sliding seat is transmitted to the processor, the processor receives the position mark of the sliding seat and compares the position mark with a set position mark, and if the position mark is not consistent with the set position mark, the sliding seat is continuously driven by the sliding driving mechanism until the sliding seat moves to the set position;
additionally, the detection ring includes a detection probe configured to detect gas tightness of the hydrogen storage cylinder and a detection algorithm; in particular, the detection probe includes, but is not limited to, the following listed ones: gas concentration sensors, temperature sensors, infrared sensors, pressure sensors, and the like; in the process that the leak detection device detects the air tightness in the detection cavity according to the detection probe, the sliding mechanism continuously and circularly operates around the periphery of the hydrogen storage bottle along a certain time interval, so that the detection probe can quickly verify or detect the air tightness of the hydrogen storage bottle;
in the present embodiment, the detection algorithm is configured to detect changes in the location of the hydrogen storage cylinder and parameters such as concentration, pressure, etc. of the hydrogen storage cylinder, and to perform a verification operation of the leak detection device based on the detected data; in this embodiment, the detection device and the sensing device are both used for detecting the hydrogen storage bottle and triggering an early warning signal based on a set rule; the detection device and the sensing device need to be correspondingly set at the position of the hydrogen storage bottle in the detection process; namely: detecting the contrast of the position to the coordinate;
any 3 detection data are taken from the pressure detected by the induction rope of the induction device, namely: a (x1, y1, z1), B (x2, y2, z2), C (x3, y3, z3), and calculated according to equation (1):
collecting an initial position, determining the initial position of the sliding mechanism according to an equation (1),
Plocation＝n0A(n)+k∑l＝0(A(n))+nn[A(n)-A(n-1)] (1)
k is the position conversion coefficient, and the value range is between 0.2 ~ 1, and this embodiment value is: 0.5, n0In order to detect the initial position of the ring, n is an arbitrary integer;
filtering the existing position deviation by adopting a formula (2);
r(n)＝r(n-1)+Plocation[l(n)-r(n-1)] (2)
synthesizing the initial position and the position deviation of the adjusting ring, and determining the position of the adjusting ring according to an equation (7);
wherein, during the sliding operation of the sliding mechanism, the supporting ring or the vehicle has vibration or deviation during the operation, so that the position of the supporting ring or the hydrogen storage bottle needs to be detected; in the embodiment, the detection is carried out by an attitude detection sensor arranged on the supporting ring or the hydrogen storage bottle and a detection probe on the detection ring;
the relationship between each measured value and the actual value and deviation value is determined by (3) and formula (4):
Figure BDA0002715836630000151
Figure BDA0002715836630000152
wherein in formula (3) and formula (4),
Figure BDA0002715836630000161
the difference value between the ith measurement value and the true value is taken as a natural number;
Figure BDA0002715836630000162
the difference value between the ith real value and the deviation value is a natural number; j is the number of measurements, and 3 values are taken as an example in this embodiment; v. ofijIs the value of an element in the weighting matrix; the weighting matrix is determined by arbitrary three detection values B1(j1, p1, q1), B2(j2, p2, q2), B3(j3, p3, q3) and real values n (w1, e1, f1), m (w2, e2, f2), z (w3, e3, f 3); weighting matrices are well known to those skilled in the art and are not described in detail;
calculating a proximity coefficient delta for each measured value to the ideal valuei，δiDetermined by equation (5):
Figure BDA0002715836630000163
wherein
Figure BDA0002715836630000164
The result of the formula (3) is,
Figure BDA0002715836630000165
obtained from the formula (4), δiThe value is any positive number, and the value of i is any integer from 1 to 6;
in addition, in the process of moving the sliding mechanism, the flow of the airflow in the detection cavity is affected, so that the delay of the detection probe signal needs to be corrected to ensure the operation of efficient transmission of the early warning signal, and the adjustment parameter D is adjusted according to the moving speed V and the running time T of the sliding deviceiThe adjustment is carried out according to the formula (6),
Figure BDA0002715836630000166
wherein, j is 1, 2, 3.. said.; taking a value between 0.2 and 2, wherein the determination of the value is determined by the efficiency of the sliding driving mechanism; wherein V comprises an acceleration speed V1, a deceleration speed V2,
Figure BDA0002715836630000167
substituting the above parameters into equation (7) for the actual position S of the sliding mechanismpointCalculating;
Figure BDA0002715836630000171
wherein c is a vibration coefficient, the vibration coefficient is determined according to the guide coefficients of the sliding driving mechanism, the adjusting ring and the detecting ring, and the range of the c value is as follows: 0.05 to 1.
In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and reference may be made to the related descriptions of other embodiments for parts that are not described or illustrated in a certain embodiment.
In summary, according to the vehicle-mounted hydrogen storage bottle air tightness early warning monitoring system, the air pumping mechanism is used for evacuating the environment in the detection cavity and detecting the hydrogen content of the hydrogen storage bottle through the detection element, so that the influence of other gases on the detection precision and the detection precision is prevented; by adopting the induction line, the tension sensor and the induction plate which need to be initialized, the change of the hydrogen storage bottle can be quickly induced after the induction line passes through the set tension, and the induction capability of the hydrogen storage bottle is improved; the head end of the limiting cavity of the adjusting ring is connected with one end of the limiting rope of the adjusting mechanism, and the other end of the limiting rope is connected with the recovery seat, so that the limiting rope is recovered under the driving operation of the recovery driving mechanism, and the limiting rope can be wound on the recovery seat; the leakage detection device is matched with the detection device and the induction device, and the early warning signal can be triggered efficiently through the transmission operation of the data link, so that the whole system can be ensured to monitor the hydrogen storage bottle in real time; and an operation configured to detect a change in the location of the hydrogen storage cylinder and parameters such as concentration, pressure, etc. of the hydrogen storage cylinder by using a detection algorithm, and verify the leak detection device based on the detected data.
Although the invention has been described above with reference to various embodiments, it should be understood that many changes and modifications may be made without departing from the scope of the invention. That is, the methods, systems, and devices discussed above are examples. Various configurations may omit, substitute, or add various procedures or components as appropriate. For example, in alternative configurations, the methods may be performed in an order different than that described, and/or various components may be added, omitted, and/or combined. Moreover, features described with respect to certain configurations may be combined in various other configurations, as different aspects and elements of the configurations may be combined in a similar manner. Further, elements therein may be updated as technology evolves, i.e., many elements are examples and do not limit the scope of the disclosure or claims.
Specific details are given in the description to provide a thorough understanding of the exemplary configurations including implementations. However, configurations may be practiced without these specific details, for example, well-known circuits, processes, algorithms, structures, and techniques have been shown without unnecessary detail in order to avoid obscuring the configurations. This description provides example configurations only, and does not limit the scope, applicability, or configuration of the claims. Rather, the foregoing description of the configurations will provide those skilled in the art with an enabling description for implementing the described techniques. Various changes may be made in the function and arrangement of elements without departing from the spirit or scope of the disclosure.
In conclusion, it is intended that the foregoing detailed description be regarded as illustrative rather than limiting, and that it be understood that these examples are illustrative only and are not intended to limit the scope of the invention. After reading the description of the invention, the skilled person can make various changes or modifications to the invention, and these equivalent changes and modifications also fall into the scope of the invention defined by the claims.

Claims (10)

1. The vehicle-mounted hydrogen storage bottle air tightness early warning monitoring system is characterized by comprising a detection device, a sensing device, an adjusting device, a leakage detection device, a processing device and a processor, wherein the detection device is used for detecting the hydrogen storage bottle and is matched with the sensing device to measure or sense the air tightness of the hydrogen storage bottle; the adjusting device is configured to adjust the sensitivity of the sensing device; the leak detection device is configured to detect a leak point of the hydrogen storage bottle; the processing means is configured to trigger an early warning signal in response to the detected parameters.
2. The vehicle-mounted hydrogen storage cylinder airtightness early warning monitoring system according to claim 1, wherein the detection device includes a detection chamber, a detection element and a pumping mechanism, the detection chamber being configured to be nested and coaxially disposed with the hydrogen storage cylinder; the detection element is configured to detect a pressure in the detection chamber; the air pumping mechanism is connected with the detection cavity and used for adjusting the pressure of the air in the air pumping cavity; the air pumping mechanism comprises an air pumping pump, a connecting valve and a backflow passage, the air pumping pump is configured to be connected with the connecting valve and the backflow passage, and the connecting valve is configured to communicate the gas in the detection cavity and the gas outside the detection cavity; the return passage is configured to connect the connection valve and the air passage of the suction pump.
3. The on-vehicle hydrogen storage cylinder airtightness warning monitoring system according to any one of the preceding claims, wherein the sensing device includes a sensing board configured to be disposed on the hydrogen storage cylinder, a sensing mechanism configured to be disposed on the sensing board, and the sensing mechanism is configured to detect a deformation amount of the sensing board, and a transmission unit configured to collect and transmit a detection signal of the sensing mechanism to the processor, and the processor triggers the warning signal based on a set rule.
4. The on-board hydrogen storage cylinder airtightness pre-warning monitoring system according to any one of the preceding claims, wherein the adjusting means includes an adjusting ring configured to adjust the sensitivity of the sensing means, and an adjusting mechanism configured to adjust the sensitivity based on the control parameter of the processor; the adjustment mechanism is configured to be in driving connection with the adjustment ring; the adjusting mechanism is configured to adjust the circumference of the adjusting ring, the adjusting mechanism comprises a limiting rope, a recovery seat and a recovery driving mechanism, the adjusting ring is provided with a limiting cavity for the limiting rope to move, the limiting rope is configured to adjust the circumference of the adjusting ring in the limiting cavity of the adjusting ring, the recovery driving mechanism is configured to drive the recovery seat, one end of the limiting rope is connected with the recovery seat, and the other end of the limiting rope is connected with the adjusting ring.
5. The on-vehicle hydrogen storage cylinder airtightness early warning monitoring system according to any one of the preceding claims, wherein the leak detection device includes a detection ring and a sliding mechanism, the detection ring being configured to be disposed on the sliding mechanism and to slide along a length direction of the hydrogen storage cylinder under the driving of the sliding mechanism; the sliding mechanism comprises a support ring, a plurality of sliding rails, a sliding driving mechanism and a plurality of sliding seats, each sliding seat is configured to be in sliding connection with each sliding rail, the sliding driving mechanism is configured to be driven by each sliding seat, the support ring is configured to be in driving connection with the sliding seat, and each sliding seat is configured to be distributed at equal intervals along the periphery of the support ring and fixedly connected with the periphery of the support ring; the detection ring is configured to be disposed coaxially with and coupled to the support ring.
6. The vehicle-mounted hydrogen storage cylinder airtightness early warning monitoring system according to any one of the preceding claims, wherein the processing device comprises a data acquisition unit and a verification unit, the data acquisition unit is configured to acquire detection data of the detection device and the sensing device, and to generate an early warning signal according to a set rule based on the detection data; the verification unit is configured to verify data of the leak detection device and detect and verify where the gas tightness of the hydrogen storage bottle changes the most; the verification unit is further configured to trigger an early warning signal based on data of the leak detection device and to transmit the early warning signal to the processor.
7. The vehicle-mounted hydrogen storage cylinder airtightness early warning and monitoring system according to any one of the preceding claims, wherein the sensing mechanism includes a plurality of sensing wires, a rotating ring and a rotating drive mechanism, the sensing plate is provided with a plurality of sensing cavities for accommodating each of the sensing wires, each of the sensing cavities is configured to nest with each of the sensing cavities, one end of each of the sensing wires is fixedly connected to an end of each of the sensing cavities, the other end of each of the sensing wires is configured to be connected to the rotating ring, and the rotating ring is configured to be drivingly connected to the rotating drive mechanism.
8. The on-board hydrogen storage cylinder airtightness pre-warning monitoring system according to any one of the preceding claims, wherein the adjustment ring includes a plurality of connecting members and respective connecting plates, the respective connecting plates being stacked around each other, each of the connecting members being configured to connect two of the connecting plates.
9. The on-board hydrogen storage cylinder airtightness early warning monitoring system according to one of the preceding claims, wherein the detection ring includes detection probes configured to detect airtightness of the hydrogen storage cylinders and a detection algorithm.
10. The on-vehicle hydrogen storage cylinder airtightness early warning monitoring system according to one of the preceding claims, wherein the detection algorithm includes collecting an initial position, and the initial position of the sliding mechanism is determined according to the formula (1),
Plocation＝n0A(n)+k∑l＝0(A(n))+nn[A(n)-A(n-1)] (1)
k is a position conversion coefficient, the value range is between 0.2 and 1, and n is0To detect the initial position of the ring, n is an arbitrary integer.
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