Method and device for detecting hydrogen transport pipeline, terminal equipment and storage medium

Abstract

Embodiments of the present application are suitable for the technical field of pipeline detection, and provide a detection method and device for a hydrogen transportation pipeline, a terminal device and a storage medium, the method comprising: determining a plurality of monitoring positions of the pipeline according to a distribution condition of the pipeline for transporting hydrogen; determining an initial gas pressure of hydrogen to be transported; collecting a first gas pressure at each monitoring position in the process of transporting the hydrogen; and generating a leakage detection result of the pipeline according to a plurality of first gas pressures and a standard gas pressure range corresponding to the pipeline when transporting the initial gas pressure. The above method can accurately detect whether the pipeline leaks.

Description

Technical Field

[0001] This application belongs to the field of pipeline inspection technology, and in particular relates to a method, apparatus, terminal equipment and storage medium for inspecting hydrogen transport pipelines. Background Technology

[0002] During the pipeline transportation of hydrogen, leaks may occur due to factors such as earthquakes, pipeline aging, or corrosion, posing a safety hazard during hydrogen transport. Therefore, it is necessary to test the tightness of the pipelines.

[0003] Currently, the pipeline is usually inspected periodically by staff, or the difference between the hydrogen flow rate in the pipeline and the expected flow rate is measured by a flow meter to determine if it exceeds a preset value.

[0004] However, regular pipeline inspections are labor-intensive and cannot detect leaks in a timely manner. Furthermore, flow meters are less accurate at detecting minor leaks. Summary of the Invention

[0005] This application provides a method, apparatus, terminal equipment, and storage medium for detecting leaks in hydrogen transport pipelines, which can solve the problem of low accuracy in detecting leaks in hydrogen transport pipelines.

[0006] In a first aspect, embodiments of this application provide a method for detecting hydrogen transport pipelines, the method comprising:

[0007] Based on the distribution of pipelines transporting hydrogen, multiple monitoring locations for the pipelines are determined;

[0008] Determine the initial gas pressure of the hydrogen to be transported;

[0009] During the transportation of hydrogen, the initial gas pressure is collected at each monitoring location;

[0010] Based on multiple initial gas pressures and the standard gas pressure range corresponding to the initial gas pressure during pipeline transportation, leak detection results for the pipeline are generated.

[0011] Secondly, embodiments of this application provide a detection device for a hydrogen transport pipeline, the device comprising:

[0012] The first determining module is used to determine multiple monitoring locations of the pipelines transporting hydrogen based on their distribution.

[0013] The second determining module is used to determine the initial gas pressure of the hydrogen to be transported;

[0014] The data acquisition module is used to collect the initial gas pressure at each monitoring location during the transportation of hydrogen.

[0015] The generation module is used to generate pipeline leak detection results based on multiple first gas pressures and the standard gas pressure range corresponding to the pipeline when the initial gas pressure is being transported.

[0016] Thirdly, embodiments of this application provide a terminal device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the method described in the first aspect above.

[0017] Fourthly, embodiments of this application provide a computer-readable storage medium storing a computer program that, when executed by a processor, implements the method described in the first aspect above.

[0018] Fifthly, embodiments of this application provide a computer program product that, when run on a terminal device, causes the terminal device to execute the method described in the first aspect.

[0019] The beneficial effects of this application embodiment compared to the prior art are as follows: The terminal device can first reasonably set multiple monitoring positions on the pipeline according to the distribution of the hydrogen transportation pipeline, so that the first gas pressure collected at each monitoring position during the hydrogen transportation process can reasonably characterize the gas pressure of the entire pipeline during transportation. Since the gas pressure during pipeline transportation is usually related to the initial gas pressure of hydrogen transportation, and when the pipeline is not leaking, the gas pressure inside the pipeline differs from the gas pressure outside the pipeline, resulting in a pressure difference. Therefore, it can be assumed that when a pipeline leaks, the gas pressure inside the pipeline will change drastically in order to balance the gas pressure inside and outside the pipeline. Based on this, the terminal device can compare the first gas pressure collected at each monitoring position with the standard gas pressure range when the pipeline is transporting hydrogen at the initial gas pressure, generating a pipeline leak detection result. Furthermore, the terminal device can accurately and promptly detect whether a pipeline leak has occurred without incurring significant manpower costs. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a flowchart illustrating the implementation of a detection method for a hydrogen transport pipeline according to an embodiment of this application;

[0022] Figure 2This is a schematic diagram illustrating one implementation method for determining the sampling duration in a hydrogen transport pipeline detection method provided in an embodiment of this application;

[0023] Figure 3 This is a schematic diagram of the structure of a detection device for a hydrogen transport pipeline provided in one embodiment of this application;

[0024] Figure 4 This is a schematic diagram of the structure of a terminal device provided in an embodiment of this application. Detailed Implementation

[0025] In the following description, specific details such as particular system architectures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of this application. However, those skilled in the art will understand that this application may also be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods have been omitted so as not to obscure the description of this application with unnecessary detail.

[0026] It should be understood that, when used in this application specification and the appended claims, the term "comprising" indicates the presence of the described features, integrals, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or a collection thereof.

[0027] Furthermore, in the description of this application and the appended claims, the terms "first," "second," "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0028] During the pipeline transportation of hydrogen, leaks may occur due to factors such as earthquakes, pipeline aging, or corrosion, posing a safety hazard during hydrogen transport. Therefore, it is necessary to test the tightness of the pipelines.

[0029] Currently, pipelines are typically inspected periodically by staff, or a flow meter is used to determine if the difference between the hydrogen flow rate in the pipeline and the expected flow rate exceeds a preset threshold. For example, if the difference is greater than the preset threshold, a pipeline leak can be identified. Otherwise, if the difference is less than or equal to the preset threshold, no leak is identified.

[0030] However, regular pipeline inspections require significant manpower and cannot detect leaks in a timely manner. Furthermore, even in the event of a minor leak, the difference in flow rate may still be less than the preset value, resulting in low accuracy when using flow meters for detection.

[0031] Based on this, in order to reduce the manpower cost of pipeline inspection and ensure the accuracy of inspection, this embodiment provides a method for inspecting hydrogen transport pipelines. This method can be applied to terminal devices such as tablet computers, laptops, ultra-mobile personal computers (UMPCs), and netbooks. This application embodiment does not impose any restrictions on the specific type of terminal device.

[0032] It should be noted that the detection method for hydrogen transport pipelines provided in this embodiment can also be applied to pipelines transporting other gases, such as pipelines transporting natural gas, and is not limited thereto.

[0033] Please see Figure 1 , Figure 1 The following is a flowchart illustrating the implementation of a detection method for a hydrogen transport pipeline provided in an embodiment of this application. The method includes the following steps:

[0034] S101. Based on the distribution of pipelines transporting hydrogen, determine multiple monitoring locations for the pipelines.

[0035] In one embodiment, hydrogen is typically transferred between a hydrogen storage device and a hydrogen-using device via pipelines. Since the hydrogen-using devices are usually located in different places, the distribution of each pipeline for transferring hydrogen varies. This distribution of each pipeline forms the pipeline distribution between the storage device and all hydrogen-using devices.

[0036] For example, in a hydrogen refueling station, the locations of the various hydrogen refueling devices are not the same, and storage devices typically transport hydrogen to each refueling device via pipelines.

[0037] It should be noted that the detection method for hydrogen transport pipelines in this embodiment is applied to the detection of each pipeline separately. The detection method for hydrogen transport pipelines described above is performed on each pipeline to generate leakage detection results for each pipeline. That is, when there are multiple pipelines, multiple monitoring locations are determined for each pipeline to be detected.

[0038] In one embodiment, the monitoring location can be set by staff or determined from the pipeline according to preset setting rules, and there is no limitation on this.

[0039] Specifically, the terminal equipment can first determine the location of the pipe bends based on the distribution, and then determine each bend location as a monitoring location.

[0040] Understandably, hydrogen is not typically transported directly between storage devices and hydrogen-consuming devices via straight pipelines. Instead, a bend in the pipeline is used to change the direction of the connection between the storage and hydrogen-consuming devices. Therefore, the terminal equipment can determine the location of the bend as the monitoring point.

[0041] It should be noted that for the pipeline between the two bends, since the bends are the monitoring locations, the first gas pressure collected at the two monitoring locations can be used to characterize the pressure change in the pipeline between the two bends.

[0042] In another embodiment, the pipeline distance between the two bends may be relatively long. When hydrogen is transported in a long pipeline, if a leak occurs, the leak detection result obtained by detecting the leak based on the first gas pressure collected at the two bends may be inaccurate. Furthermore, when a leak occurs in the middle region of the pipeline between the two bends, it is usually not possible to generate a leak detection result in a timely manner based on the first gas pressure collected at the two bends.

[0043] Based on this, the terminal device can also determine the pipe distance between two adjacent bends according to the distribution. Then, for any pipe distance, if the pipe distance is greater than a first preset distance, the position corresponding to every second preset distance is determined as the monitoring position.

[0044] It should be noted that the aforementioned adjacent bend positions refer to bends on the same pipeline, and these two bend positions are adjacent. For example, for pipelines A and B, bend position A1 and bend position B1 in pipeline A are not adjacent bend positions. Therefore, it is impossible to identify whether pipelines A and B are leaking based on the first gas pressure at bend positions A1 and B1. Furthermore, if the bend positions along the hydrogen transport direction in pipeline A are A1, A2, and A3 in sequence, then A1 and A2 are two adjacent bend positions, and A2 and A3 are two adjacent bend positions.

[0045] In one embodiment, both the first preset distance and the second preset distance can be set according to actual conditions, and there is no limitation on this.

[0046] It should be noted that for storage devices, this is the starting point of hydrogen transportation, and for hydrogen-using devices, it is the ending point of hydrogen transportation. Therefore, when setting monitoring locations, the starting and ending points can also be used as monitoring locations.

[0047] S102. Determine the initial gas pressure of the hydrogen to be transported.

[0048] S103. During the transportation of hydrogen, the first gas pressure at each monitoring location is collected.

[0049] In one embodiment, the terminal device can determine the initial gas pressure of the hydrogen to be transported and the first gas pressure at each monitoring location using a pressure gauge or pressure sensor; details are not provided here. The initial gas pressure can be any pressure between 0 MPa and 70 MPa, and is not limited thereto.

[0050] The terminal device can collect the initial gas pressure and the first gas pressure in real time or at preset intervals to determine the leak detection results.

[0051] It should be noted that since the pressure of gas during pipeline transportation is usually related to the initial gas pressure during hydrogen transportation, when the initial gas pressure of the hydrogen to be transported changes, a certain amount of time needs to be waited before the first gas pressure can be collected in order to accurately generate leak detection results.

[0052] Understandably, when the initial gas pressure remains unchanged, the pressures of various gases within the pipeline are usually unaffected. However, when the initial gas pressure changes, because each monitoring location is some distance from the starting location, it takes a certain amount of time for the hydrogen gas corresponding to the initial gas pressure to reach the monitoring location. Therefore, if the initial gas pressure is collected at each monitoring location simultaneously with the change in initial gas pressure, the accuracy of the leak detection results generated based on the standard gas pressure range corresponding to the collected initial gas pressure and the current initial gas pressure may be low.

[0053] Based on this, when the initial gas pressure is consistent with the historical gas pressure for transporting hydrogen at a given time, the terminal device can collect the first gas pressure at each monitoring location at preset intervals. Otherwise, when the initial gas pressure is inconsistent with the historical gas pressure for transporting hydrogen at a given time, the terminal device can determine the collection duration for each monitoring location separately and collect the first gas pressure at intervals.

[0054] The aforementioned historical moment can be the time of the last collection of the initial gas pressure of the hydrogen to be transported. Furthermore, the aforementioned preset duration can be set according to actual circumstances and is not limited thereto.

[0055] It should be noted that if the pressure difference between the initial gas pressure and the historical gas pressure is less than the preset pressure difference, the initial gas pressure can be considered unchanged (i.e., the initial gas pressure is consistent with the historical gas pressure). Otherwise, if the pressure difference between the initial gas pressure and the historical gas pressure is greater than or equal to the preset pressure difference, the initial gas pressure can be considered changed (i.e., the initial gas pressure is consistent with the historical gas pressure).

[0056] The preset pressure difference can be set according to the actual situation, and there is no limitation on it.

[0057] In one embodiment, the terminal device may pre-store the correlation between gas pressure, monitoring location, and data acquisition duration. Then, the terminal device can directly determine the data acquisition duration corresponding to each monitoring location at the current initial gas pressure based on this correlation.

[0058] As an example, the terminal device can be based on, for example... Figure 2 S201-S205, as shown, determine the data acquisition duration for each monitoring location. Details are as follows:

[0059] S201. For any monitoring location, collect the second gas pressure corresponding to the monitoring location.

[0060] S202. Calculate the pressure difference between the second gas pressure and the initial gas pressure.

[0061] In one embodiment, the second gas pressure is the gas pressure synchronously collected when a change in the initial gas pressure is detected. When the pressure difference is negative, its absolute value is used in subsequent processing.

[0062] S203. Determine the target pipeline between the monitoring location and the starting point of hydrogen transportation.

[0063] In applications, the target pipes between different monitoring locations and the starting location are typically different, resulting in different pipe parameters for the target pipes between different monitoring locations and the starting location. For example, the pipe lengths corresponding to the target pipes are usually different. Furthermore, within a single pipe, the target pipes between a distant monitoring location and the starting location include not only the target pipes between a nearby monitoring location and the starting location, but also the target pipes between distant and nearby monitoring locations.

[0064] Specifically, for monitoring positions A1 and A2 in pipeline A, if the distance between monitoring position A2 and the starting position A0 is greater than the distance between monitoring position A1 and the starting position A0 (i.e., along the hydrogen transport direction, hydrogen first arrives at monitoring position A1 in the pipeline, and then arrives at monitoring position A2), then the target pipeline between A2 and A0 includes not only the target pipeline between A1 and A0, but also the target pipeline between A1 and A2.

[0065] S204. Based on the pipeline parameters and pressure difference of the target pipeline, determine the transportation time of hydrogen from the starting position to the monitoring position.

[0066] In one embodiment, as can be seen from the above, different monitoring locations include different target pipes, and therefore, the pipe parameters of the corresponding target pipes are usually different.

[0067] The pipeline parameters include, but are not limited to, pipeline length, pipeline inner diameter, and inner wall roughness, etc.

[0068] It should be noted that the inner diameter and inner wall roughness of a pipeline may vary at different monitoring locations. In this case, the inner diameter can be pre-measured and set by personnel. However, the inner wall roughness is usually affected by time and environment and cannot be determined in real time. Therefore, when determining the inner wall roughness, the product of the initial inner wall roughness and the weight corresponding to the pipeline's usage time can be used as the inner wall roughness. In this embodiment, the same value is used for the inner wall roughness of the target pipeline at each monitoring location in subsequent processing.

[0069] The weights corresponding to the aforementioned durations can be preset and are not subject to any restrictions. It should be noted that the weights must be values ​​greater than 1.

[0070] In one specific embodiment, the terminal device can input pipeline parameters and pressure difference into a preset time calculation formula to obtain the transportation time; the time calculation formula is as follows:

[0071]

[0072] Where T is the transportation time, l is the length of the target pipeline, d is the inner diameter of the target pipeline, P is the pressure difference, ρ is the density of hydrogen, A is a constant, and n is the roughness of the inner wall of the target pipeline.

[0073] The constant A mentioned above can be set by the staff. For example, the constant A can be 10.

[0074] It should be noted that the transportation time is typically calculated by dividing the pipeline length (distance) by the speed. In this embodiment, the speed of hydrogen is determined by the flow rate of hydrogen passing through the monitoring location. In the above formula, Characterizes the frictional resistance encountered by hydrogen gas during pipeline transportation; The gas flow rate of hydrogen at the monitoring position is defined as the pressure difference P between the starting position and the monitoring position. This characterizes the flow velocity of hydrogen as it passes through the monitored location. Based on this, the pipe length l is divided by this flow velocity. The resulting formula is the same as the above formula for calculating duration.

[0075] S205. The transportation time is determined as the data collection time.

[0076] In one embodiment, after determining the transportation time, it can be assumed that when the hydrogen gas pressure is the initial gas pressure, the hydrogen will affect the gas pressure at the monitoring location after the transportation time. Therefore, the transportation time can be determined as the data collection time, so that the first gas pressure at the corresponding monitoring location can be collected after the data collection time, thereby improving the accuracy of the collected first gas pressure.

[0077] S104. Generate pipeline leak detection results based on multiple first gas pressures and the standard gas pressure range corresponding to the pipeline when transporting the initial gas pressure.

[0078] In one embodiment, when hydrogen is transported in a pipeline, the gas pressure at various monitoring locations may fluctuate normally due to the accuracy of the gas pressure acquisition equipment or the influence of the external environment during transportation. Typically, the amplitude of this fluctuation is small.

[0079] Based on this, the terminal device can pre-store the standard gas pressure range corresponding to each initial gas pressure. Then, if multiple first gas pressures are within the standard gas pressure range, the terminal device can determine that the leak detection result is that the pipeline is not leaking; and if any first gas pressure is not within the standard gas pressure range, the terminal device can determine that the leak detection result is that the pipeline is leaking.

[0080] In another embodiment, the gas pressure at different monitoring locations typically differs as the gas flows within the pipeline. Specifically, generally along the hydrogen transport direction, the gas pressure at upstream monitoring locations is usually greater than the gas pressure at downstream monitoring locations. Therefore, the standard gas pressure range corresponding to each monitoring location can also be different. That is, when determining the standard gas pressure range, it can also be determined simultaneously based on the initial gas pressure and the monitoring location, without limitation.

[0081] Understandably, when a pipeline leaks, the gas pressure inside the pipeline will change drastically to balance the pressure inside and outside. Specifically, when a pipeline leaks, the gas pressure inside the pipeline will typically decrease to balance the pressure inside and outside. Therefore, a pipeline leak can be determined when any initial gas pressure is less than the minimum value of the standard gas pressure range.

[0082] In this embodiment, the terminal device can first rationally set multiple monitoring locations along the hydrogen transport pipeline based on its distribution. The initial gas pressure collected at each monitoring location during hydrogen transport can reasonably characterize the overall gas pressure of the pipeline during transport. Since the gas pressure during pipeline transport is typically related to the initial gas pressure of the hydrogen, and there is a pressure difference between the gas pressure inside and outside the pipeline when there is no leak, it can be assumed that when a leak occurs, the gas pressure inside the pipeline will change drastically to balance the pressures inside and outside. Based on this, the terminal device can compare the initial gas pressure collected at each monitoring location with the standard gas pressure range of the pipeline when transporting hydrogen at its initial gas pressure, generating a pipeline leak detection result. Furthermore, the terminal device can accurately and promptly detect pipeline leaks without incurring significant manpower costs.

[0083] Please see Figure 3 , Figure 3 This is a schematic diagram of the structure of a detection device for a hydrogen transport pipeline provided in an embodiment of this application. The detection device for the hydrogen transport pipeline in this embodiment includes modules for performing... Figure 1 and Figure 2 The steps in the corresponding embodiments. Please refer to the details. Figure 1 and Figure 2 as well as Figure 1 and Figure 2 The relevant descriptions in the corresponding embodiments are shown below. For ease of explanation, only the parts relevant to this embodiment are shown. See also... Figure 3 The detection device 300 for hydrogen transport pipelines may include: a first determining module 310, a second determining module 320, a data acquisition module 330, and a generation module 340, wherein:

[0084] The first determining module 310 is used to determine multiple monitoring locations of the pipelines transporting hydrogen based on their distribution.

[0085] The second determining module 320 is used to determine the initial gas pressure of the hydrogen to be transported.

[0086] The acquisition module 330 is used to acquire the first gas pressure at each monitoring location during the transportation of hydrogen.

[0087] The generation module 340 is used to generate pipeline leak detection results based on multiple first gas pressures and the standard gas pressure range corresponding to the pipeline when the initial gas pressure is being transported.

[0088] In one embodiment, the first determining module 310 is further configured to:

[0089] Determine the locations of pipe bends based on their distribution; designate each bend location as a monitoring point.

[0090] In one embodiment, the first determining module 310 is further configured to:

[0091] Based on the distribution, the pipe distance between two adjacent bend positions is determined; for any pipe distance, if the pipe distance is greater than the first preset distance, the position corresponding to every second preset distance is determined as the monitoring position.

[0092] In one embodiment, the acquisition module 330 is further configured to:

[0093] If the initial gas pressure is consistent with the historical gas pressure for transporting hydrogen at a historical time, the first gas pressure at each monitoring location is collected at preset intervals; if the initial gas pressure is inconsistent with the historical gas pressure for transporting hydrogen at a historical time, the collection time corresponding to each monitoring location is determined, and the first gas pressure is collected at intervals.

[0094] In one embodiment, the acquisition module 330 is further configured to:

[0095] For any monitoring location, the second gas pressure corresponding to the monitoring location is collected; the pressure difference between the second gas pressure and the initial gas pressure is calculated; the target pipeline between the monitoring location and the starting point of hydrogen transportation is determined; based on the pipeline parameters and pressure difference of the target pipeline, the transportation time of hydrogen from the starting point to the monitoring location is determined; and the transportation time is determined as the collection time.

[0096] In one embodiment, the acquisition module 330 is further configured to:

[0097] Input the pipeline parameters and pressure difference into the preset time calculation formula to obtain the transportation time; the time calculation formula is as follows:

[0098]

[0099] Where T is the transportation time, l is the length of the target pipeline, d is the inner diameter of the target pipeline, P is the pressure difference, ρ is the density of hydrogen, A is a constant, and n is the roughness of the inner wall of the target pipeline.

[0100] In one embodiment, the generation module 340 is further configured to:

[0101] If multiple first gas pressures are within the standard gas pressure range, the leak detection result is determined to be that the pipeline is not leaking; if any first gas pressure is outside the standard gas pressure range, the leak detection result is determined to be that the pipeline is suspected of leaking; if a preset number of consecutive leak detection results are all suspected of leaking the pipeline, the leak detection result is determined to be that the pipeline is leaking.

[0102] When it is understood that, Figure 3 In the schematic diagram of the detection device for the hydrogen transport pipeline shown, each module is used to perform... Figure 1 and Figure 2 The steps in the corresponding embodiments, and for Figure 1 and Figure 2 The steps in the corresponding embodiments have been explained in detail in the above embodiments. Please refer to them for details. Figure 1 and Figure 2 as well as Figure 1 and Figure 2 The relevant descriptions in the corresponding embodiments will not be repeated here.

[0103] Figure 4 This is a schematic diagram of the structure of a terminal device provided in one embodiment of this application. For example... Figure 4 As shown, the terminal device 400 of this embodiment includes a processor 410, a memory 420, and a computer program 430 stored in the memory 420 and executable by the processor 410, such as a program for a hydrogen transport pipeline detection method. When the processor 410 executes the computer program 430, it implements the steps of each embodiment of the hydrogen transport pipeline detection method described above, for example... Figure 1 S101 to S104 are shown. Alternatively, the processor 410 implements the above when executing the computer program 430. Figure 3 The functions of each module in the corresponding embodiments, for example, Figure 3 For details on the functions of each module shown, please refer to [link / reference]. Figure 3 The relevant descriptions in the corresponding embodiments.

[0104] For example, the computer program 430 can be divided into one or more modules, one or more of which are stored in the memory 420 and executed by the processor 410 to implement the hydrogen transport pipeline detection method provided in this embodiment. One or more modules can be a series of computer program instruction segments capable of performing specific functions, which describe the execution process of the computer program 430 in the terminal device 400. For example, the computer program 430 can implement the hydrogen transport pipeline detection method provided in this embodiment.

[0105] Terminal device 400 may include, but is not limited to, processor 410 and memory 420. Those skilled in the art will understand that... Figure 4 This is merely an example of terminal device 400 and does not constitute a limitation on terminal device 400. It may include more or fewer components than shown, or combine certain components, or different components. For example, terminal device may also include input / output devices, network access devices, buses, etc.

[0106] The processor 410 may be a central processing unit, or it may be other general-purpose processors, digital signal processors, application-specific integrated circuits, off-the-shelf programmable gate arrays or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or any conventional processor, etc.

[0107] The memory 420 can be an internal storage unit of the terminal device 400, such as a hard disk or memory of the terminal device 400. The memory 420 can also be an external storage device of the terminal device 400, such as a plug-in hard disk, smart memory card, flash memory card, etc., equipped on the terminal device 400. Furthermore, the memory 420 can include both internal storage units and external storage devices of the terminal device 400.

[0108] This application provides a computer-readable storage medium storing a computer program, which is executed by a processor using the detection method for hydrogen transport pipelines described in the above embodiments.

[0109] This application provides a computer program product that, when run on a terminal device, causes the terminal device to execute the detection method for hydrogen transport pipelines described in the above embodiments.

[0110] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be included within the protection scope of this application.

Claims

1. A method for detecting hydrogen transport pipelines, characterized in that, The method includes: Based on the distribution of pipelines transporting hydrogen, multiple monitoring locations for the pipelines are determined; Determine the initial gas pressure of the hydrogen to be transported; During the transport of the hydrogen, the first gas pressure is collected at each of the monitoring locations; Based on multiple first gas pressures and the standard gas pressure range corresponding to the pipeline when transporting the initial gas pressure, a leak detection result for the pipeline is generated; The process of transporting the hydrogen includes collecting the first gas pressure at each monitoring location, including: If the initial gas pressure is consistent with the historical gas pressure at which the hydrogen was transported at a historical time, then the first gas pressure at each monitoring location is collected at preset intervals. If the initial gas pressure is inconsistent with the historical gas pressure at a historical time when the hydrogen was transported, then the collection duration corresponding to each monitoring location is determined, and the first gas pressure is collected after an interval of the collection duration. If the initial gas pressure is inconsistent with the historical gas pressure at a historical time when the hydrogen was transported, then the acquisition duration corresponding to each monitoring location is determined, including: For any of the monitoring locations, the second gas pressure corresponding to the monitoring location is collected; Calculate the pressure difference between the second gas pressure and the initial gas pressure; Determine the target pipeline between the monitoring location and the starting point of the hydrogen transport; Based on the pipeline parameters of the target pipeline and the pressure difference, determine the transportation time of the hydrogen from the starting position to the monitoring position; The transportation time is defined as the data collection time. Determining the transportation time of hydrogen from the starting position to the monitoring position based on the pipeline parameters of the target pipeline and the pressure difference includes: The pipeline parameters and the pressure difference are input into a preset time calculation formula to obtain the transportation time; the time calculation formula is as follows: ； Where T is the transportation time, l is the length of the target pipeline, d is the inner diameter of the target pipeline, and P is the pressure difference. Let A be the density of the hydrogen gas, A be a constant, and n be the roughness of the inner wall of the target pipe.

2. The method according to claim 1, characterized in that, The determination of multiple monitoring locations for the pipelines transporting hydrogen, based on their distribution, includes: The location of the bend in the pipeline is determined based on the distribution pattern. Each of the aforementioned bend positions is designated as the monitoring position.

3. The method according to claim 2, characterized in that, The determination of multiple monitoring locations for the pipelines transporting hydrogen, based on their distribution, includes: Based on the distribution, the pipe distance between two adjacent bend locations is determined respectively; For any of the pipeline distances, if the pipeline distance is greater than a first preset distance, then the position corresponding to every second preset distance is determined as the monitoring position.

4. The method according to any one of claims 1-3, characterized in that, The step of generating a leak detection result for the pipeline based on multiple first gas pressures and the standard gas pressure range corresponding to the pipeline when transporting the initial gas pressure includes: If multiple first gas pressures are all within the standard gas pressure range, then the leak detection result is determined to be that the pipeline has not leaked; If any of the first gas pressures is outside the standard gas pressure range, then the leak detection result is determined to be a leak in the pipeline.

5. A detection device for a hydrogen transport pipeline, characterized in that, The device includes: The first determining module is used to determine multiple monitoring locations of the pipelines transporting hydrogen based on their distribution. The second determining module is used to determine the initial gas pressure of the hydrogen to be transported; The acquisition module is used to acquire the first gas pressure at each of the monitoring locations during the transportation of the hydrogen. A generation module is used to generate a leak detection result for the pipeline based on multiple first gas pressures and the standard gas pressure range corresponding to the pipeline when transporting the initial gas pressure. The acquisition module is also used for: If the initial gas pressure is consistent with the historical gas pressure at which the hydrogen was transported at a historical time, then the first gas pressure at each monitoring location is collected at preset intervals. If the initial gas pressure is inconsistent with the historical gas pressure at a historical time when the hydrogen was transported, then the collection duration corresponding to each monitoring location is determined, and the first gas pressure is collected after an interval of the collection duration. The acquisition module is also used for: For any of the monitoring locations, the second gas pressure corresponding to the monitoring location is collected; Calculate the pressure difference between the second gas pressure and the initial gas pressure; Determine the target pipeline between the monitoring location and the starting point of the hydrogen transport; Based on the pipeline parameters of the target pipeline and the pressure difference, determine the transportation time of the hydrogen from the starting position to the monitoring position; The transportation time is defined as the data collection time. The acquisition module is also used for: The pipeline parameters and the pressure difference are input into a preset time calculation formula to obtain the transportation time; the time calculation formula is as follows: ； Where T is the transportation time, l is the length of the target pipeline, d is the inner diameter of the target pipeline, and P is the pressure difference. Let A be the density of the hydrogen gas, A be a constant, and n be the roughness of the inner wall of the target pipe.

6. A terminal device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the computer program, it implements the method as described in any one of claims 1 to 4.

7. A computer-readable storage medium storing a computer program, characterized in that, When the computer program is executed by a processor, it implements the method as described in any one of claims 1 to 4.

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