A hydrogen pipeline transportation technology test platform and a test method thereof

Abstract

This invention discloses a hydrogen pipeline transportation technology test platform and its test method, relating to the field of hydrogen pipeline transportation technology. The platform includes: a hydrogen pipeline transportation system comprising a main pipeline and multiple branch pipelines; a first branch point and a second branch point are set on the main pipeline; multiple branch pipelines are connected in parallel between the first and second branch points; a hydrogen compressor and a platform self-circulation valve are installed on the main pipeline; each branch pipeline is connected to the test pipeline via a test pipeline valve; a local environmental control system is installed on each test pipeline, including a temperature control box and a composite load application device; a detection system is installed inside the temperature control box; and a data acquisition system is connected to the detection system for signal transmission. This test platform can test and verify the materials, design, construction, and operation technologies of hydrogen pipelines, and conduct safety performance assessments, environmental impact studies, and transportation efficiency optimization studies.

Description

Technical Field

[0001] This invention belongs to the field of hydrogen pipeline transportation technology, and more specifically, relates to a hydrogen pipeline transportation technology test platform and its test method. Background Technology

[0002] Hydrogen, as a clean and efficient energy source, plays a crucial role in achieving carbon neutrality. Within the hydrogen energy industry chain, hydrogen storage and transportation is a key challenge. Currently used technologies such as long-tube trailers, liquefaction storage, and material adsorption all face challenges related to safety, energy consumption, and cost. However, hydrogen pipelines, as a long-distance, large-scale hydrogen transportation method, offer advantages such as high transportation efficiency and low transportation costs. With the rapid development of the hydrogen energy industry and the enormous potential of the future hydrogen energy application market, breakthroughs in large-scale, low-cost hydrogen storage and transportation technologies are essential for the healthy and rapid development of the entire industry chain. Therefore, hydrogen pipeline transportation technology has gained global attention and will play a vital role in the global hydrogen economy.

[0003] However, due to the small size of hydrogen molecules, they can easily penetrate through tiny defects, placing higher demands on the selection of pipeline materials and manufacturing processes. Furthermore, hydrogen has a wide explosion limit range in air, requiring more stringent leak detection and fire / explosion prevention measures, posing a significant challenge to the safe operation of hydrogen pipelines. Commonly used metal materials in gas pipelines are prone to hydrogen embrittlement in a hydrogen environment, leading to a decrease in strength and toughness, necessitating the selection of suitable materials or surface treatments. Especially with the gradual advancement of large-scale, long-distance hydrogen pipeline projects in China, the design standards for hydrogen pipelines are still incomplete compared to the mature design standards for natural gas pipelines, requiring further research and verification through experimental platforms. Therefore, the construction of a hydrogen pipeline testing platform is urgently needed, which is of great significance for ensuring the safe and efficient operation of hydrogen pipelines.

[0004] A hydrogen pipeline testing platform provides researchers with an experimental environment that simulates the actual operating conditions of hydrogen pipelines, facilitating the study of key issues such as the mechanical properties, leakage characteristics, and hydrogen diffusion patterns of hydrogen pipelines. Through this platform, comparative tests can be conducted on hydrogen pipelines made of different materials, structures, and processes to evaluate their safety and applicability. Furthermore, the testing platform can be used to study key technologies such as optimizing operating parameters, fault diagnosis, and early warning systems for hydrogen pipelines. Compared to theoretical research and numerical simulations, research results obtained through physical model testing are more realistic and reliable, especially prototype tests or large-scale tests, whose results offer greater guidance.

[0005] However, research on hydrogen pipeline testing platforms in my country is still in its early stages and faces several challenges. For example, existing testing platforms are relatively small in scale and primarily focus on laboratory research of key materials and equipment within the pipeline, making them insufficient for large-scale, long-distance hydrogen pipeline testing. Furthermore, the platforms have limited functionality, failing to simulate complex real-world operating environments under conditions of coupled multi-factor variations. The methods for collecting and analyzing test data are also limited, hindering the accurate reflection of the hydrogen pipeline's operational status. These issues restrict the development of hydrogen pipeline testing platforms in my country and impede the advancement of hydrogen pipeline technology.

[0006] Therefore, constructing a large-scale, multi-functional, and intelligent hydrogen pipeline testing platform is of great significance for improving the research and development level of hydrogen pipeline technology in my country. The testing platform can provide researchers with a more realistic testing environment, helping to reveal key issues such as the mechanical properties and leakage characteristics of hydrogen pipelines in actual operation. Simultaneously, the testing platform can also provide technical support for the design, construction, operation, and maintenance of hydrogen pipelines, promoting the development of hydrogen pipeline technology in my country. Summary of the Invention

[0007] The purpose of this invention is to address the shortcomings of existing technologies by providing a hydrogen pipeline transportation technology test platform and its test methods. This test platform can test and verify the materials, design, construction, and operation technologies of hydrogen pipelines, conduct safety performance assessments, environmental impact studies, and transportation efficiency optimization studies. Based on the data collected by the test platform, it supports technical and economic feasibility analysis and provides decision support for the large-scale deployment of hydrogen pipelines.

[0008] To achieve the above objectives, the present invention provides a hydrogen pipeline transportation technology test platform, comprising:

[0009] A pipeline hydrogen transportation system includes a main pipeline and multiple branch pipelines. The main pipeline has a first branch point and a second branch point. The multiple branch pipelines are connected in parallel between the first branch point and the second branch point. The main pipeline is equipped with a hydrogen compressor and a platform self-circulation valve. Each branch pipeline is connected to a test pipeline through a test pipeline valve.

[0010] A local environmental control system is installed on each of the test pipelines. The local environmental control system includes a temperature control box and a composite load application device. The temperature control box is equipped with a detection system.

[0011] The data acquisition system is connected to the detection system for signal transmission.

[0012] Optionally, a manifold is provided at the first branch point, the manifold connecting the main pipeline to the inlet ends of the multiple branch pipelines, and a main valve is provided at the end of the main pipeline near the first branch point.

[0013] Optionally, each of the pipeline branches is equipped with a filter separator, the sewage discharge outlet of all the filter separators is connected to the sewage tank, and all the pipeline branches and the test pipeline are connected to the vent pipe.

[0014] Optionally, the temperature control chamber includes a chamber body and a heater, the heater being evenly distributed within the chamber body, and the composite load application device being disposed on the test pipeline located within the chamber body.

[0015] Optionally, the detection system includes a metering skid and an online detection system. The metering skid includes a temperature transmitter, a pressure transmitter, and a flow transmitter. The online detection system includes a metal crack monitoring device, a hydrogen leak detector, and an optical fiber leak detector.

[0016] Optionally, the manifold is also connected to a backup interface.

[0017] Optionally, the main pipeline is equipped with a main pipeline gas source valve and a valve leading to the main pipeline.

[0018] Optionally, it also includes a buffer tank, the outlet of which is connected to the inlet of the hydrogen compressor, and a check valve is also provided on the pipeline, which is located between the second fulcrum and the valve leading to the main pipeline.

[0019] Optionally, it also includes a safety system, which includes a hydrogen leak detector, a fire detection and extinguishing system, a safety valve, an automatic pressure relief device, an explosion-proof wall, and a fence.

[0020] This invention also provides a hydrogen pipeline transportation technology testing method, utilizing the aforementioned hydrogen pipeline transportation technology testing platform. The testing method includes:

[0021] Test hydrogen is introduced into the pipeline hydrogen transportation system. Once the detection system detects that the purity of the test hydrogen meets the requirements, the introduction of test hydrogen is stopped.

[0022] The hydrogen compressor is turned on, and the pressurized test hydrogen enters the test pipeline. The local environmental control system applies load and transfers heat to the test pipeline and test hydrogen according to the test requirements. The detection system monitors the test pipeline and test hydrogen in real time.

[0023] This invention provides a hydrogen pipeline transportation technology test platform and its test method. Its advantages are as follows: This test platform constructs a full-scale hydrogen pipeline transportation technology test platform and test method covering hydrogen energy pipeline materials, components, equipment, and system safety. It can construct service environment conditions with different temperatures, pressures, and loads, enabling online detection and rapid location of cracks and hydrogen leaks in typical locations of test pipelines of different diameters and their key accessories under various actual operating conditions. It also collects data on lifespan reliability and quality influencing factors, providing support for ensuring the safe operation of hydrogen energy pipelines.

[0024] Other features and advantages of the present invention will be described in detail in the following detailed description section. Attached Figure Description

[0025] The above and other objects, features and advantages of the present invention will become more apparent from the more detailed description of exemplary embodiments of the invention in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments of the invention.

[0026] Figure 1 A schematic diagram of a hydrogen pipeline transportation technology test platform according to an embodiment of the present invention is shown.

[0027] Figure 2 A flowchart of a hydrogen pipeline transportation technology test method according to an embodiment of the present invention is shown.

[0028] Explanation of reference numerals in the attached figures:

[0029] 1. Main pipeline; 2. Branch pipeline; 3. Backup interface; 4. Metering skid; 5. Local environmental control system; 6. Online monitoring system; 7. Hydrogen compressor; 8. Buffer tank; 9. Data acquisition system; 10. Manifold; 11. Test pipeline valve; 12. Filter separator; 13. Main pipeline gas source valve; 14. Platform self-circulation valve; 15. Valve to main pipeline; 16. Check valve; 17. Main pipeline valve; 18. Sewage tank; 19. Fence; 20. Vent pipe. Detailed Implementation

[0030] Preferred embodiments of the invention will now be described in more detail. While preferred embodiments of the invention are described below, it should be understood that the invention can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that the invention will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

[0031] This invention provides a hydrogen pipeline transportation technology test platform, comprising:

[0032] The pipeline hydrogen transportation system includes a main pipeline and multiple branch pipelines. The main pipeline has a first branch point and a second branch point. Multiple branch pipelines are connected in parallel between the first branch point and the second branch point. The main pipeline is equipped with a hydrogen compressor and a platform self-circulation valve. Each branch pipeline is connected to the test pipeline through a test pipeline valve.

[0033] A local environmental control system is installed on each test pipeline. The local environmental control system includes a temperature control box and a composite load application device. The temperature control box is equipped with a detection system.

[0034] The data acquisition system is connected to the signal transmission of the detection system.

[0035] Specifically, the test platform mainly includes a pipeline hydrogen transportation system, a local environmental control system, a detection system, and a data acquisition system. The pipeline hydrogen transportation system provides multiple interfaces for connecting test pipelines along its various branch lines, and test pipeline valves are installed on each branch line. The test platform can conduct transportation tests and verifications on a single pipeline, or connect multiple test pipelines in parallel at reserved interfaces to conduct simultaneous testing and verification, enabling comparative testing of different pipe materials under the same conditions. The local environmental control system consists of a temperature control box and a composite load application device. These two components work together to control the temperature of the test environment and apply various types and intensities of simulated loads to the pipeline, thereby enabling the testing and verification of the safety and stability of the hydrogen pipeline under different environments. The detection system can monitor the pipeline's operating parameters and environmental conditions, as well as monitor cracks and leaks in the pipeline itself, transmitting this data in real time to the data acquisition system for online detection and analysis of the test results. The data acquisition system is used to collect various parameters from the test platform in real time and perform data processing and analysis.

[0036] Optionally, a manifold is provided at the first branch point, which connects the main pipeline to the inlet ends of multiple branch pipelines, and a main pipeline valve is provided at the end of the main pipeline near the first branch point.

[0037] Specifically, a manifold is installed at the first branch point of the main pipeline to transfer hydrogen from the main pipeline to each branch pipeline. Hydrogen with the same pressure and density can flow in different test pipelines, allowing multiple sets of tests to be conducted simultaneously. After the test is completed, the gas supply can be stopped through the main valve of the main pipeline, facilitating the replacement of the test pipeline.

[0038] Optionally, each pipeline branch is equipped with a filter separator, the sewage discharge outlet of all filter separators is connected to the sewage tank, and all pipeline branches and test pipelines are connected to the vent pipe.

[0039] Specifically, filter separators are installed on each pipeline branch to filter hydrogen impurities in the pipeline. Wastewater generated in the filter separators is collected in the sewage pool through the sewage valve and then subjected to unified subsequent treatment. Each pipeline branch is connected to the vent pipe to ensure the purity of the transported gas and the safe operation of the platform system.

[0040] Optionally, the temperature control chamber includes a chamber body and a heater, with the heater evenly distributed within the chamber body, and the composite load application device located on the test pipeline inside the chamber body.

[0041] Specifically, the temperature control box has an external box-like structure, with the test pipeline running through it. During testing, the ambient temperature of the test pipeline can be adjusted using a heater to test its performance at different temperatures. Furthermore, a composite load application device applies loads of varying magnitudes to the test pipeline in circumferential, axial, and radial directions. Combined with adjustments to the hydrogen pressure and flow rate by the hydrogen compressor, different temperature, pressure, and load conditions are created, enabling flexible simulation of various actual operating conditions of the hydrogen pipeline.

[0042] Optionally, the detection system includes a metering skid and an online detection system. The metering skid includes a temperature transmitter, a pressure transmitter, and a flow transmitter. The online detection system includes a metal crack monitoring device, a hydrogen leak detector, and a fiber optic leak detector.

[0043] Specifically, the metering skid can monitor operating parameters such as gas temperature, pressure, and flow rate in each test pipeline in real time. At the same time, the online monitoring system can also monitor and alarm for phenomena such as surface cracks and leaks in the test pipeline.

[0044] Optionally, the manifold is also connected to a backup interface.

[0045] Specifically, when it is necessary to test pipelines with different pipe materials and diameters, the test pipeline can be connected to a spare interface. This allows hydrogen gas with the same parameters to be sent to the test pipeline, enabling comparative analysis under the same test conditions.

[0046] Optionally, a main gas source valve and a valve leading to the main gas line are installed on the main pipeline.

[0047] Specifically, a main gas source valve is set up to control the gas intake of the pipeline hydrogen transportation system, and a valve leading to the main line is set up to control the gas output of the pipeline hydrogen transportation system. Before testing the test pipeline on this test platform, hydrogen is first introduced into the pipeline hydrogen transportation system, and the two valves are opened. When the hydrogen purity and gas volume in the pipeline hydrogen transportation system reach the set requirements, the two valves are then closed, and the test pipeline can then be tested.

[0048] Optionally, it also includes a buffer tank, the outlet of which is connected to the inlet of the hydrogen compressor, and a check valve is installed on the pipeline main, which is located between the second fulcrum and the valve leading to the main line.

[0049] Specifically, the buffer tank ensures stable inlet pressure for the hydrogen compressor, enabling its smooth operation; the check valve ensures the correct flow direction of hydrogen in the main pipeline, preventing hydrogen flowing out from the second fulcrum from flowing back into the branch pipeline and affecting the test results.

[0050] Optionally, it also includes a safety system, which includes a hydrogen leak detector, a fire detection and extinguishing system, a safety valve, an automatic pressure relief device, an explosion-proof wall, and a fence.

[0051] Specifically, the test platform is isolated from the surrounding environment through a safety system, which facilitates separate handling in the event of hydrogen leaks, fires, or other accidents, thus preventing damage to surrounding property and personnel.

[0052] This invention also provides a hydrogen pipeline transportation technology testing method, utilizing the aforementioned hydrogen pipeline transportation technology testing platform. The testing method includes:

[0053] Test hydrogen is introduced into the pipeline hydrogen transmission system. Once the detection system detects that the purity of the test hydrogen meets the requirements, the introduction of test hydrogen is stopped.

[0054] The hydrogen compressor is turned on, and the pressurized test hydrogen enters the test pipeline. The local environmental control system applies load and transfers heat to the test pipeline and test hydrogen according to the test requirements, and the detection system monitors the test pipeline and test hydrogen in real time.

[0055] Specifically, during testing, the test platform first installs the pipeline to be tested onto a branch line, then injects hydrogen into the platform. Once the hydrogen purity and volume meet the requirements, the injection is stopped. A hydrogen compressor is then used to apply pressure to the hydrogen, causing it to circulate within the pipeline's hydrogen transport system. A local environmental control system then applies force and temperature to the test pipeline and the hydrogen within it to bring the pipeline to the required testing conditions. Finally, a monitoring system tracks the pipeline's operation to obtain test data, facilitating data analysis.

[0056] Example 1

[0057] like Figure 1 As shown, the present invention provides a hydrogen pipeline transportation technology test platform, comprising:

[0058] The pipeline hydrogen transportation system includes a main pipeline 1 and multiple pipeline branches 2. The main pipeline 1 is equipped with a first branch point and a second branch point. The multiple pipeline branches 2 are connected in parallel between the first branch point and the second branch point. The main pipeline 1 is equipped with a hydrogen compressor 7 and a platform self-circulation valve 14. Each pipeline branch 2 is connected to the test pipeline through a test pipeline valve 11.

[0059] Local environmental control system 5 is installed on each test pipeline. Local environmental control system 5 includes a temperature control box and a composite load application device. The temperature control box is equipped with a detection system.

[0060] Data acquisition system 9 is connected to the signal transmission of the detection system.

[0061] In this embodiment, a manifold 10 is provided at the first branch point, which connects the main pipeline 1 to the inlet ends of multiple branch pipelines 2. A main pipeline valve 17 is provided at one end of the main pipeline 1 near the first branch point.

[0062] In this embodiment, each pipeline branch 2 is equipped with a filter separator 12, the sewage discharge port of all filter separators 12 is connected to the sewage tank 18, and all pipeline branches 2 and test pipelines are connected to the vent pipe 20.

[0063] In this embodiment, the temperature control box includes a box body and a heater. The heater is evenly distributed inside the box body, and the composite load application device is installed on the test pipeline located inside the box body.

[0064] In this embodiment, the detection system includes a metering skid 4 and an online detection system 6. The metering skid 4 includes a temperature transmitter, a pressure transmitter, and a flow transmitter. The online detection system 6 includes a metal crack monitoring device, a hydrogen leak detector, and an optical fiber leak detector.

[0065] In this embodiment, the manifold 10 is also connected to a spare interface 3.

[0066] In this embodiment, the main pipeline 1 is equipped with a main pipeline gas source valve 13 and a main pipeline valve 15.

[0067] In this embodiment, a buffer tank 8 is also included. The outlet of the buffer tank 8 is connected to the inlet of the hydrogen compressor 7. A check valve 16 is also provided on the pipeline trunk line 1. The check valve 16 is located between the second fulcrum and the valve 15 leading to the trunk line.

[0068] In this embodiment, a safety system is also included, which includes a hydrogen leak detector, a fire detection and extinguishing system, a safety valve, an automatic pressure relief device, an explosion-proof wall, and a fence 19.

[0069] In summary, this hydrogen pipeline transportation technology test platform consists of a pipeline hydrogen transportation system, a local environmental control system 5, a detection system, a data acquisition system 9, and a safety system. The pipeline hydrogen transportation system is the core component of this test platform. It comprises a hydrogen compressor 7, a main pipeline 1, a manifold 10, branch pipelines 2, a filter separator 12, a check valve 16, a buffer tank 8, a vent pipe 20, and a sewage treatment tank 18. The filter separators 12 on each branch pipeline 2 are connected to the sewage treatment tank 18, which not only filters the hydrogen but also facilitates the recycling of wastewater. Connecting the vent pipe 20 to all branch pipelines 2 ensures the safety of the hydrogen transportation process. When testing the test pipeline on this experimental platform, a temperature control chamber can create a localized ambient temperature within the chamber, ensuring that the pipeline and internal gas reach the set temperature. A composite load application device applies loads of varying magnitudes in the circumferential, axial, and radial directions to the pipeline. Simultaneously, combined with the hydrogen compressor 7 adjusting the gas delivery pressure and flow rate, different temperature, pressure, and load operating conditions can be constructed, enabling flexible simulation of various actual operating conditions of the hydrogen pipeline. The detection system uses a metering skid 4 to monitor the temperature, pressure, flow rate, and other operating parameters of the hydrogen in the test pipeline in real time. An online detection system 6 also monitors for metal cracks and hydrogen leaks in the pipeline. The data acquisition system 9 includes a data acquisition card, signal conditioning module, data acquisition software, and a computer system, enabling real-time acquisition, display, and storage of various parameters detected by the detection system, as well as subsequent data processing and analysis.

[0070] Example 2

[0071] like Figure 2 As shown, the present invention also provides a hydrogen pipeline transportation technology testing method, utilizing the aforementioned hydrogen pipeline transportation technology testing platform. This testing method includes:

[0072] Test hydrogen is introduced into the pipeline hydrogen transmission system. Once the detection system detects that the purity of the test hydrogen meets the requirements, the introduction of test hydrogen is stopped.

[0073] The hydrogen compressor 7 is turned on, and the pressurized test hydrogen enters the test pipeline. The local environmental control system 5 applies load and transfers heat to the test pipeline and test hydrogen according to the test requirements. The detection system monitors the test pipeline and test hydrogen in real time.

[0074] In summary, the experimental process is as follows:

[0075] In independent operation mode, after gas replacement, sufficient test hydrogen is first injected into the test platform system. Once the purity of the circulating gas reaches the required level, the main gas source valve 13 and the valve leading to the main line 15 are closed, and the platform self-circulation valve 14 is opened. At the start of the test, the hydrogen compressor 7 is turned on, and the load of the hydrogen compressor 7 is adjusted according to the test pressure requirements to change the hydrogen delivery pressure. The temperature within the test environment is adjusted by adjusting the local environmental control system 5, and the required composite load is applied to the test pipeline section. Hydrogen flows from the outlet of the hydrogen compressor 7 through the main valve 17, manifold 10, test pipeline valve 11, filter separator 12, metering skid 4, buffer tank 8, and other equipment back to the inlet of the hydrogen compressor 7, realizing circulation within the platform. The data acquisition system 9 monitors the operating parameters such as gas temperature, pressure, and flow rate in the platform pipeline in real time, and simultaneously monitors online for accidents such as metal cracks and hydrogen leaks in the test pipeline section and issues alarms.

[0076] When using the parallel connection mode with pipeline branch 2, after gas replacement treatment, sufficient test hydrogen is first injected into the test platform system. Once the purity of the circulating gas meets the requirements, the main gas source valve 13 and the valve leading to the main line 15 are opened, and the platform self-circulation valve 14 is closed. At the start of the test, the hydrogen compressor 7 is turned on. The main gas source flows through the buffer tank 8 and is pressurized by the hydrogen compressor 7. The load of the hydrogen compressor 7 is adjusted according to the test pressure requirements to change the hydrogen delivery pressure. The temperature within the test environment is adjusted by regulating the local environmental control system 5, and the required composite load is applied to the test pipeline section. Hydrogen flows from the outlet of the hydrogen compressor 7 through the main valve 17, manifold 10, test pipeline valve 11, filter separator 12, metering skid 4, buffer tank 8, and other equipment back to the inlet of the hydrogen compressor 7, achieving circulation within the platform. The data acquisition system 9 monitors the operating parameters of the gas in the platform pipeline in real time, such as temperature, pressure, and flow rate, and simultaneously monitors and alarms for accidents such as metal cracks and hydrogen leaks in the test pipeline section. Depending on the experimental needs, tests can be conducted simultaneously on multiple pipelines to achieve comparative analysis under the same experimental conditions.

[0077] The various embodiments of the present invention have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments.

Claims

1. A hydrogen pipeline transportation technology test platform, characterized in that, include: A pipeline hydrogen transportation system includes a main pipeline and multiple branch pipelines. The main pipeline has a first branch point and a second branch point. The multiple branch pipelines are connected in parallel between the first branch point and the second branch point. The main pipeline is equipped with a hydrogen compressor and a platform self-circulation valve. Each branch pipeline is connected to a test pipeline through a test pipeline valve. A local environmental control system is installed on each of the test pipelines. The local environmental control system includes a temperature control box and a composite load application device. The temperature control box is equipped with a detection system. The data acquisition system is connected to the detection system for signal transmission.

2. The hydrogen pipeline transportation technology test platform according to claim 1, characterized in that, A manifold is provided at the first branch point, which connects the main pipeline to the inlet ends of multiple branch pipelines. A main valve is provided at the end of the main pipeline near the first branch point.

3. The hydrogen pipeline transportation technology test platform according to claim 1, characterized in that, Each of the pipeline branches is equipped with a filter separator, the sewage discharge outlet of all the filter separators is connected to the sewage tank, and all the pipeline branches and the test pipeline are connected to the vent pipe.

4. The hydrogen pipeline transportation technology test platform according to claim 1, characterized in that, The temperature control chamber includes a chamber body and a heater, the heater being evenly distributed within the chamber body, and the composite load application device being disposed on the test pipeline located within the chamber body.

5. The hydrogen pipeline transportation technology test platform according to claim 4, characterized in that, The detection system includes a metering skid and an online detection system. The metering skid includes a temperature transmitter, a pressure transmitter, and a flow transmitter. The online detection system includes a metal crack monitoring device, a hydrogen leak detector, and an optical fiber leak detector.

6. The hydrogen pipeline transportation technology test platform according to claim 2, characterized in that, The manifold is also connected to a backup interface.

7. The hydrogen pipeline transportation technology test platform according to claim 1, characterized in that, The main pipeline is equipped with a main pipeline gas source valve and a valve leading to the main pipeline.

8. The hydrogen pipeline transportation technology test platform according to claim 7, characterized in that, It also includes a buffer tank, the outlet of which is connected to the inlet of the hydrogen compressor, and a check valve is also installed on the pipeline, which is located between the second fulcrum and the valve leading to the main pipeline.

9. The hydrogen pipeline transportation technology test platform according to claim 1, characterized in that, It also includes a safety system, which includes a hydrogen leak detector, a fire detection and extinguishing system, a safety valve, an automatic pressure relief device, an explosion-proof wall, and a fence.

10. A method for testing hydrogen pipeline transportation technology, utilizing the hydrogen pipeline transportation technology testing platform according to any one of claims 1-9, characterized in that, The experimental method includes: Test hydrogen is introduced into the pipeline hydrogen transportation system. Once the detection system detects that the purity of the test hydrogen meets the requirements, the introduction of test hydrogen is stopped. The hydrogen compressor is turned on, and the pressurized test hydrogen enters the test pipeline. The local environmental control system applies load and transfers heat to the test pipeline and test hydrogen according to the test requirements. The detection system monitors the test pipeline and test hydrogen in real time.

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