Hydrogen leakage monitoring and early warning system and risk control method for hydrogen refueling stations
Through the hydrogen leakage monitoring and early warning system of the hydrogen refueling station, the leakage location is determined using image and sensor data, and the CFD algorithm is used to predict hydrogen diffusion, which solves the problem of hydrogen leakage monitoring at the hydrogen refueling station and improves safety and response efficiency.
Patent Information
- Application Number
- CN202311651229.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-04
- Publication Date
- 2025-01-03
- Estimated Expiration
- 2043-12-04
AI Technical Summary
Hydrogen leakage is prone to occur during actual operation of hydrogen refueling stations, resulting in combustion or explosion. It is difficult for existing technology to accurately monitor and early warning, affecting safety.
A hydrogen leakage monitoring and early warning system at hydrogen refueling station was designed, including a display unit, a monitoring unit, an alarm unit and a leakage warning and judgment unit. The leakage location was determined through image acquisition, sensor data and traceability model, and the hydrogen diffusion range was predicted by using CFD algorithm. Provide real-time three-dimensional diagrams and pipeline instrument flow chart updates to judge and alarm hydrogen leakage.
It effectively reduces the accident response time, improves the safety factor of the hydrogen refueling station, provides leaked location data, provides a basis for formulating response measures, and improves the accuracy and safety of early warnings.
Smart Images
Figure CN117739264B_ABST
Abstract
Description
Technical Field
[0001] The present disclosure relates to the field of hydrogen energy technology, and in particular to a hydrogen leakage monitoring and early warning system and a risk control method for a hydrogen refueling station. Background Art
[0002] As an important scenario for hydrogen energy application, the safety of hydrogen refueling stations has always attracted much attention. Due to the special physical and chemical properties of hydrogen, hydrogen refueling stations are prone to leakage during actual operation. Due to the low lower explosion limit and low minimum ignition energy, hydrogen leakage is prone to combustion or even explosion. How to accurately monitor whether hydrogen leaks and issue early warnings has become an important guarantee for the safe operation of hydrogen refueling stations and an important measure to reduce the consequences of accidents. Summary of the invention
[0003] The present disclosure aims to solve one of the technical problems in the related art at least to some extent.
[0004] To this end, one purpose of the present disclosure is to provide a hydrogen leakage monitoring and early warning system for a hydrogen refueling station.
[0005] The second objective of the present disclosure is to provide a risk control method.
[0006] A third objective of the present disclosure is to provide an electronic device.
[0007] To achieve the above-mentioned purpose, the first embodiment of the present disclosure proposes a hydrogen leakage monitoring and early warning system for a hydrogen refueling station, comprising: a display unit, a leakage early warning judgment unit, a monitoring unit, and an alarm unit; wherein the display unit is used to provide a real-time three-dimensional diagram and a pipeline instrument flow chart of the hydrogen refueling station; the monitoring unit is used to collect image data of the hydrogen refueling station through an image acquisition device, and at the same time obtain environmental data of the hydrogen refueling station through a sensor; the alarm unit is used to receive the image data and the environmental data sent by the monitoring unit to determine whether the hydrogen refueling station has a hydrogen leak, and to issue a leakage alarm in the event of a hydrogen leak; the leakage early warning judgment unit is used to determine the leakage location in the event of a hydrogen leak at the hydrogen refueling station; the display unit is also used to update and adjust the real-time three-dimensional diagram and the pipeline instrument flow chart based on the operating data of the monitoring unit, the alarm unit and the leakage early warning judgment unit, and to display the updated and adjusted real-time three-dimensional diagram and the pipeline instrument flow chart.
[0008] According to one embodiment of the present disclosure, the determining the leakage location includes: determining the leakage location based on the image data and the environmental data.
[0009] According to one embodiment of the present disclosure, determining the leakage location based on the image data and the environmental data includes: inputting the image data and the environmental data into a traceability model for processing to determine the leakage location.
[0010] According to one embodiment of the present disclosure, before inputting the image data and the environmental data into the tracing model for processing, it also includes: processing the image data and the environmental data through an adaptive filtering algorithm.
[0011] According to one embodiment of the present disclosure, the leakage warning judgment unit is further used to: at the leakage location, predict the diffusion range and diffusion speed of hydrogen within a future set time period based on a computational fluid dynamics (CFD) grid algorithm.
[0012] According to one embodiment of the present disclosure, the display unit is also used to simulate a hydrogen leakage scenario on a real-time three-dimensional diagram and / or a pipeline instrument flow chart based on the diffusion range and diffusion speed of hydrogen within a future set time period predicted by the leakage warning judgment unit.
[0013] According to an embodiment of the present disclosure, the alarm unit further includes: an alarm judgment module, the alarm judgment module is used to judge whether the current leakage alarm is a false alarm, and reset the alarm in response to the current leakage alarm being a false alarm.
[0014] According to one embodiment of the present disclosure, the hydrogen leakage monitoring and early warning system further includes: a risk level unit, and the risk level unit is used to determine the current risk level of the hydrogen refueling station based on the image data and the environmental data.
[0015] To achieve the above-mentioned purpose, a second embodiment of the present disclosure proposes a risk control method, including: performing risk control on a target hydrogen refueling station through the hydrogen leakage monitoring and early warning system for hydrogen refueling stations as described in the first embodiment.
[0016] To achieve the above-mentioned purpose, the third aspect embodiment of the present disclosure proposes an electronic device, comprising: at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor to implement the risk control method as described in the second aspect embodiment of the present disclosure.
[0017] The hydrogen leakage monitoring and early warning system for hydrogen refueling stations disclosed in the present invention can monitor and predict hydrogen leakage at hydrogen refueling stations, reduce the response time when an accident occurs, gain valuable time for handling personnel, and improve the safety factor of hydrogen refueling stations. At the same time, it can also provide a data basis for formulating corresponding response measures by determining the leakage location. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 This is a structural schematic diagram of a hydrogen leakage monitoring and early warning system for a hydrogen refueling station according to an embodiment of the present disclosure;
[0019] Figure 2 This is a schematic diagram of the principle of the adaptive filtering algorithm disclosed in the present invention;
[0020] Figure 3 It is a structural schematic diagram of another hydrogen leakage monitoring and early warning system for a hydrogen refueling station according to an embodiment of the present disclosure;
[0021] Figure 4 It is a structural schematic diagram of another hydrogen leakage monitoring and early warning system for a hydrogen refueling station according to an embodiment of the present disclosure;
[0022] Figure 5 A schematic diagram of a risk control method disclosed herein;
[0023] Figure 6 is a schematic diagram of an electronic device according to an embodiment of the present disclosure. DETAILED DESCRIPTION
[0024] Embodiments of the present disclosure are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present disclosure, and should not be construed as limiting the present disclosure.
[0025] The acquisition, storage, use, and processing of data in the technical solution disclosed in this disclosure are in compliance with the relevant provisions of national laws and regulations.
[0026] Figure 1 Schematic diagram of a hydrogen leakage monitoring and early warning system for a hydrogen refueling station according to an embodiment of the present disclosure. Figure 1 As shown, the hydrogen leakage monitoring and early warning system of the hydrogen filling station includes: a display unit 110 , a monitoring unit 120 , an alarm unit 130 and a leakage early warning judgment unit 140 .
[0027] The display unit 110 is used to provide a real-time three-dimensional diagram and a pipeline instrument flow chart of the hydrogen refueling station.
[0028] It should be noted that the real-time three-dimensional diagram is modeled in the form of coordinates based on the layout diagram of the on-site hydrogen refueling station, and can be a scaled three-dimensional diagram of the hydrogen refueling station, so as to facilitate real-time monitoring by operation and maintenance personnel and facilitate early warning judgment in the later stage.
[0029] The pipeline instrument flow chart shows in detail all the equipment, instruments, pipelines, valves and other related public engineering systems of the hydrogen refueling station. It is convenient for operation and maintenance personnel to formulate operations, troubleshoot and formulate troubleshooting procedures according to the pipeline instrument flow chart.
[0030] The monitoring unit 120 is used to collect image data of the hydrogen refueling station through an image acquisition device, and simultaneously obtain environmental data of the hydrogen refueling station through a sensor.
[0031] It should be noted that the monitoring unit 120 includes multiple image acquisition devices and sensors, which can be of various types, and are not limited here, and can be limited according to actual design needs. For example, the image acquisition device can be a collection camera, a camera, etc., and the sensor can be a temperature sensor, a humidity sensor, etc.
[0032] It should be noted that environmental data can include many types, which are not limited here and need to be limited according to actual design needs. For example, environmental data can include various process and safety instrument data, such as flow, pressure, temperature data, hydrogen concentration information detected by concentration sensors, information from sound and light alarms, and environmental information at the time, including wind speed, wind direction, humidity, etc.
[0033] The alarm unit 130 is used to receive the image data and environmental data sent by the monitoring unit 120, and determine whether there is a hydrogen leak in the hydrogen refueling station, and issue a leakage alarm in the event of a hydrogen leak.
[0034] In the disclosed embodiment, the alarm information unit is an important part of the early warning platform, which displays abnormal signals in real time and issues an alarm. If a hydrogen leak actually occurs and triggers an alarm, the information is displayed in real time on the early warning platform, and the alarm information is transmitted to the leakage early warning judgment unit 140.
[0035] It should be noted that there may be a variety of alarm methods, which are not limited here. For example, the alarm may be one or a combination of sound alarm, light alarm, text message alarm, etc.
[0036] The hydrogen leakage monitoring and early warning system for hydrogen refueling stations disclosed in the present invention can monitor and predict hydrogen leakage at hydrogen refueling stations, reduce the response time when an accident occurs, gain valuable time for handling personnel, and improve the safety factor of hydrogen refueling stations. At the same time, it can also provide a data basis for formulating corresponding response measures by determining the leakage location.
[0037] The leakage warning judgment unit 140 is used to determine the leakage location in case of hydrogen leakage at the hydrogen filling station.
[0038] In the embodiment of the present disclosure, the leakage location may be determined based on the image data and the environmental data.
[0039] It should be noted that the image data and environmental data can be input into the traceability model for processing to determine the leakage location. The traceability model is a model for tracing the leakage location, which is trained in advance and stored in the storage space of the electronic device.
[0040] The display unit 110 is also used to update and adjust the real-time three-dimensional diagram and pipeline instrument flow chart based on the operating data of the monitoring unit 120, the alarm unit 130 and the leakage warning judgment unit 140, and to display the updated and adjusted real-time three-dimensional diagram and pipeline instrument flow chart.
[0041] In the embodiment of the present disclosure, before the image data and the environmental data are input into the traceability model for processing, the image data and the environmental data may also be processed by an adaptive filtering algorithm.
[0042] Specifically, the principle of adaptive filtering algorithm is as follows: Figure 2 As shown, Figure 2 This is a schematic diagram of the principle of the adaptive filtering algorithm disclosed in the present invention, wherein x(j) represents the input signal value at time j, such as hydrogen concentration, pressure, flow rate, etc.; y(j) represents the output signal value at time j, d(j) represents the reference signal value of j, and the error signal e(j) is the difference between d(j) and y(j). The iteration formula is e(n)=d(n)-XT(n)W(n). W(n+1)=W(n)+2ue(n)X(n). Wherein u is the step size factor. The adaptive filtering signal is mainly used to remove noise, improve the accuracy of accident alarms, and thus improve the accuracy of early warnings.
[0043] It should be noted that, in order to facilitate subsequent personnel to take corresponding measures at the leakage location, the leakage warning judgment unit 140 is also used to: at the leakage location, based on the Computational Fluid Dynamics (CFD) grid algorithm, predict the diffusion range and diffusion speed of hydrogen within a future set time period.
[0044] After obtaining the leakage location, the display unit 110 is also used to simulate the hydrogen leakage scenario on the real-time three-dimensional diagram and / or the pipeline instrument flow chart based on the diffusion range and diffusion speed of hydrogen in a future set time period predicted by the leakage warning judgment unit 140.
[0045] It should be noted that if Figure 3 As shown, Figure 3 It is a structural diagram of another hydrogen leakage monitoring and early warning system for a hydrogen refueling station according to an embodiment of the present disclosure, the alarm unit 130 also includes an alarm judgment module 310, the alarm judgment module is used to judge whether the current leakage alarm is a false alarm, and in response to the current leakage alarm being a false alarm, reset the alarm.
[0046] In the embodiments of the present disclosure, Figure 4 As shown, Figure 4 It is a structural schematic diagram of another hydrogen leakage monitoring and early warning system for a hydrogen refueling station according to an embodiment of the present disclosure. The hydrogen leakage monitoring and early warning system also includes a risk level unit 410, which is used to determine the current risk level of the hydrogen refueling station based on image data and environmental data.
[0047] Figure 5 A schematic diagram of a risk control method disclosed in the present invention is shown in FIG. Figure 5 As shown, the method includes:
[0048] S501, risk control is performed on the target hydrogen refueling station through the hydrogen leakage monitoring and early warning system of the hydrogen refueling station.
[0049] It should be noted that the hydrogen leakage monitoring and early warning system of the hydrogen filling station in this embodiment is as follows: Figure 1-Figure 4 The hydrogen leakage monitoring and early warning system of the hydrogen refueling station is shown.
[0050] The hydrogen leakage monitoring and early warning system for hydrogen refueling stations disclosed in the present invention can monitor and predict hydrogen leakage at hydrogen refueling stations, reduce the response time when an accident occurs, gain valuable time for handling personnel, and improve the safety factor of hydrogen refueling stations. At the same time, it can also provide a data basis for formulating corresponding response measures by determining the leakage location.
[0051] In order to implement the above embodiment, the present disclosure further provides an electronic device 600, Figure 6 is a schematic diagram of an electronic device according to an embodiment of the present disclosure, such as Figure 6 As shown, the electronic device 600 includes: a processor 601 and a memory 602 that is communicatively connected to the processor, the memory 602 stores instructions that can be executed by at least one processor, and the instructions are executed by at least one processor 601 to implement the present disclosure. Figure 5 The risk control method of the embodiment.
[0052] In order to implement the above embodiments, the present disclosure also provides a non-transitory computer-readable storage medium storing computer instructions, wherein the computer instructions are used to enable the computer to implement the above embodiments. Figure 5 The risk control method of the embodiment.
[0053] In order to implement the above embodiments, the present disclosure also provides a computer program product, including a computer program. When the computer program is executed by a processor, the computer program implements the above embodiments. Figure 5 The risk control method of the embodiment.
[0054] It should be noted that personal information from users should be collected for legitimate and reasonable purposes and should not be shared or sold outside of these legitimate uses. In addition, such collection / sharing should be carried out after receiving the user's informed consent, including but not limited to notifying the user to read the user agreement / user notice and sign the agreement / authorization including authorization of relevant user information before the user uses the function. In addition, any necessary steps should be taken to protect and safeguard access to such personal information data and ensure that others who have access to personal information data comply with its privacy policy and procedures.
[0055] The present application is expected to provide an implementation scheme for users to selectively block the use or access of personal information data. That is, the present disclosure is expected to provide hardware and / or software to prevent or block access to such personal information data. Once the personal information data is no longer needed, the risk can be minimized by limiting data collection and deleting the data. In addition, when applicable, such personal information is de-identified to protect the privacy of the user.
[0056] In the description of the aforementioned embodiments, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.
[0057] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.
[0058] Any process or method description in a flowchart or otherwise described herein may be understood to represent a module, fragment or portion of code comprising one or more executable instructions for implementing the steps of a custom logical function or process, and the scope of the preferred embodiments of the present application includes alternative implementations in which functions may not be performed in the order shown or discussed, including performing functions in a substantially simultaneous manner or in the reverse order depending on the functions involved, which should be understood by technicians in the technical field to which the embodiments of the present application belong.
[0059] The logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as an ordered list of executable instructions for implementing logical functions, and can be embodied in any computer-readable medium for use by an instruction execution system, device or apparatus (such as a computer-based system, a system including a processor, or other system that can fetch instructions from an instruction execution system, device or apparatus and execute the instructions), or in combination with these instruction execution systems, devices or apparatuses. For the purpose of this specification, "computer-readable medium" can be any device that can contain, store, communicate, propagate or transmit a program for use by an instruction execution system, device or apparatus, or in combination with these instruction execution systems, devices or apparatuses. More specific examples of computer-readable media (a non-exhaustive list) include the following: an electrical connection with one or more wires (electronic device), a portable computer disk box (magnetic device), a random access memory (RAM), a read-only memory (ROM), an erasable and programmable read-only memory (EPROM or flash memory), a fiber optic device, and a portable compact disk read-only memory (CDROM). In addition, the computer-readable medium may even be paper or other suitable medium on which the program is printed, since the program may be obtained electronically, for example, by optically scanning the paper or other medium and then editing, interpreting or processing in other suitable ways if necessary, and then stored in a computer memory.
[0060] It should be understood that the various parts of the present application can be implemented by hardware, software, firmware or a combination thereof. In the above-mentioned embodiments, multiple steps or methods can be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented by hardware, as in another embodiment, it can be implemented by any one of the following technologies known in the art or their combination: a discrete logic circuit having a logic gate circuit for implementing a logic function for a data signal, a dedicated integrated circuit having a suitable combination of logic gate circuits, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.
[0061] A person skilled in the art may understand that all or part of the steps in the method for implementing the above-mentioned embodiment may be completed by instructing related hardware through a program, and the program may be stored in a computer-readable storage medium, which, when executed, includes one or a combination of the steps of the method embodiment.
[0062] In addition, each functional unit in each embodiment of the present application may be integrated into a processing module, or each unit may exist physically separately, or two or more units may be integrated into one module. The above-mentioned integrated module may be implemented in the form of hardware or in the form of a software functional module. If the integrated module is implemented in the form of a software functional module and sold or used as an independent product, it may also be stored in a computer-readable storage medium.
[0063] The storage medium mentioned above may be a read-only memory, a magnetic disk or an optical disk, etc. Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limiting the present application. A person of ordinary skill in the art may change, modify, replace and modify the above embodiments within the scope of the present application.
Claims
1. A hydrogen leakage monitoring and early warning system for a hydrogen refueling station, characterized in that: include: Display unit, leakage warning judgment unit, monitoring unit, alarm unit; Wherein, the display unit is used to provide a real-time three-dimensional diagram and a pipeline instrument flow chart of the hydrogen refueling station; The monitoring unit is used to collect image data of the hydrogen refueling station through an image acquisition device, and simultaneously obtain environmental data of the hydrogen refueling station through a sensor; The alarm unit is used to receive the image data and the environmental data sent by the monitoring unit, and determine whether the hydrogen refueling station has a hydrogen leak, and issue a leak alarm in the event of a hydrogen leak; The leakage warning judgment unit is used to determine the leakage location and the diffusion range and diffusion speed of hydrogen after the leakage in the case of hydrogen leakage at the hydrogen filling station; The display unit is also used to update and adjust the real-time three-dimensional diagram and the pipeline instrument flow chart based on the operation data of the monitoring unit, the alarm unit and the leakage early warning judgment unit, and display the updated and adjusted real-time three-dimensional diagram and pipeline instrument flow chart; Determining the leakage location comprises: Inputting the image data and the environmental data into a traceability model for processing to determine the leakage location; Determining the diffusion range and diffusion speed of hydrogen after leakage includes: At the leakage location, based on a computational fluid dynamics (CFD) grid algorithm, the diffusion range and diffusion rate of hydrogen within a future set time period are predicted; The display unit is further used to: simulate a hydrogen leakage scenario on a real-time three-dimensional diagram and / or a pipeline instrument flow chart based on the diffusion range and diffusion speed of hydrogen within a future set time period predicted by the leakage early warning judgment unit; Before the image data and the environmental data are input into the traceability model for processing, the method further includes: The image data and the environmental data are processed by an adaptive filtering algorithm, wherein the principle of the adaptive filtering algorithm includes: x(j) is represented as the input signal value at time j, y(j) is represented as the output signal value at time j, d(j) is represented as the reference signal value at j, the difference between d(j) and y(j) is the error signal e(j), the iterative formula is e(n)=d(n)-XT(n)W(n), W(n+1)=W(n)+2ue(n)X(n), wherein u is the step size factor, and the adaptive filtering signal is used to remove noise; The hydrogen leakage monitoring and early warning system also includes: A risk level unit is used to determine a current risk level of the hydrogen refueling station based on the image data and the environmental data.
2. The hydrogen leakage monitoring and early warning system for a hydrogen refueling station according to claim 1, characterized in that: The alarm unit further comprises: The alarm judgment module is used to judge whether the current leakage alarm is a false alarm, and in response to the current leakage alarm being a false alarm, the alarm is reset.
3. A risk control method, characterized in that: include: The target hydrogen refueling station is risk controlled by using the hydrogen leakage monitoring and early warning system for the hydrogen refueling station as described in any one of claims 1-2.
4. An electronic device, characterized in that: Including memory and processor; The processor runs a program corresponding to the executable program code by reading the executable program code stored in the memory, so as to implement the method as claimed in claim 3.