System and method for enhancing the inhibition of pipeline hydrogen embrittlement by coupling carbon monoxide and oxygen

Abstract

This application relates to the technical field of hydrogen transmission pipelines, and discloses a system and method for enhancing the inhibition of pipeline hydrogen embrittlement by coupling carbon monoxide and oxygen. Among them, the system includes: a monitoring module, which includes a monitoring unit and a user terminal; the monitoring unit is used to monitor the pre-regulation gas source concentration value matching the type of the gas source and the post-regulation gas source concentration value matching the type of the gas source; the monitoring module is used to determine the gas source concentration regulation range according to the pre-regulation gas source concentration value, the post-regulation gas source concentration value and the preset target gas source concentration value; a gas distribution regulation module, which includes a gas source unit, a buffer unit corresponding to the gas source unit, and a coupling regulation unit; the gas distribution regulation module is used to perform gas distribution regulation on the gas flow rate in the hydrogen transmission pipeline to be regulated based on the gas source concentration regulation range. The technical solution provided by this application utilizes the principle of the coupling effect of carbon monoxide and oxygen to enhance the inhibition of material hydrogen embrittlement, and can reduce the risk of hydrogen embrittlement of the pipe material.

Description

Technical Field

[0001] The present application relates to the technical field of hydrogen pipelines, and particularly to a system and method for suppressing pipeline hydrogen embrittlement by coupling and enhancing carbon monoxide and oxygen. Background Art

[0002] Hydrogen embrittlement is a major problem faced in hydrogen pipeline transportation. The interaction between hydrogen molecules and pipeline materials can lead to a decrease in material ductility and an increase in fatigue cracks, affecting the safety and lifespan of pipelines. Although there are some protective technologies such as gas inhibitors or specific operation steps, problems such as gas composition limitations, complex operations, and high costs are faced during implementation, making it still difficult to be widely applied.

[0003] The current technical problem that urgently needs to be solved is how to develop an efficient, low-cost, and easy-to-implement hydrogen embrittlement protection method to ensure the safety and stability of hydrogen pipeline transportation. Summary of the Invention

[0004] The present application provides a system and method for suppressing pipeline hydrogen embrittlement by coupling and enhancing carbon monoxide and oxygen, achieving the technical effect of reducing the risk of hydrogen embrittlement of pipe materials and ensuring the safety of hydrogen transportation.

[0005] To achieve the above object, the main technical solutions adopted in the present application include:

[0006] In a first aspect, an embodiment of the present application provides a system for suppressing pipeline hydrogen embrittlement by coupling and enhancing carbon monoxide and oxygen. The system includes:

[0007] A monitoring module, which includes a monitoring unit and a user terminal; one end of the monitoring unit is connected to the hydrogen pipeline to be regulated through a pipeline for monitoring the concentration value of the gas source before regulation that matches the type of the gas source, and the concentration value of the gas source after regulation that matches the type of the gas source; the other end of the monitoring unit is electrically connected to the user terminal; the monitoring module is used to determine the regulation amplitude of the gas source concentration according to the concentration value of the gas source before regulation, the concentration value of the gas source after regulation, and the preset target gas source concentration value;

[0008] A gas distribution and regulation module, which includes gas source units of at least two different gas source types, buffer units corresponding to the gas source units, and a coupling regulation unit; the gas outlet end of the gas source unit is connected to the gas inlet end of the buffer unit through a pipeline; the gas outlet end of the buffer unit is connected to the gas inlet end of the coupling regulation unit through a pipeline; the gas outlet end of the coupling regulation unit is connected to the hydrogen pipeline to be regulated through an elbow; the gas distribution and regulation module is used to perform gas distribution regulation on the gas flow rate in the hydrogen pipeline to be regulated based on the regulation amplitude of the gas source concentration; wherein, the gas source types include carbon monoxide and oxygen.

[0009] A system for enhancing the inhibition of pipeline hydrogen embrittlement by coupling carbon monoxide and oxygen provided in this embodiment realizes the precise monitoring and automatic regulation of the gas source concentration in the hydrogen transmission pipeline to be regulated through the collaborative work of a monitoring module and a gas distribution regulation module. The monitoring module monitors the gas source concentration in real time, compares the gas source concentration values before and after regulation with the preset target gas source concentration value, calculates the regulation range of the gas source concentration, and provides an adjustment basis for the gas distribution regulation module. The gas distribution regulation module automatically adjusts the gas flow rate and ratio by precisely controlling the gas source unit, the buffer unit, and the coupling regulation unit to ensure that the gas concentration meets the requirements. The system supports the flexible regulation of multiple gas source types, enhances the adaptability and operability, and at the same time improves the response speed and regulation accuracy of the system, ensuring the stability and consistency of the gas source concentration. This automated and precise regulation mechanism greatly improves the efficiency, stability, and reliability of the system.

[0010] In one embodiment, a first electro-pneumatic valve is connected to the pipeline between the gas source unit and the buffer unit for regulating the first flow rate of the gas source entering the buffer unit from the gas source unit;

[0011] A second electro-pneumatic valve is connected to the pipeline between the buffer unit and the coupling regulation unit for regulating the second flow rate of the gas source entering the coupling regulation unit from the buffer unit;

[0012] Wherein, the first flow rate is greater than a specified multiple of the second flow rate.

[0013] In this embodiment, by precisely regulating two electro-pneumatic valves, which are respectively located between the gas source unit and the buffer unit, and between the buffer unit and the coupling regulation unit, the gas source flow rate is adjusted, thereby ensuring the stability and accuracy of the air flow in the system. The first electro-pneumatic valve regulates the flow rate of the gas source flowing into the buffer unit to ensure the stable entry of the gas source; the second electro-pneumatic valve adjusts the flow rate of the gas source when it enters the coupling regulation unit to avoid uneven or too fast air flow. By setting the design that the first flow rate is greater than the second flow rate, the air flow impact can be effectively avoided, the smooth and uniform flow of the gas source can be maintained, and the control accuracy of the system can be improved. It not only improves the response speed and stability of the system, but also optimizes the regulation of the gas flow concentration, reduces the energy loss, and improves the efficiency and reliability of the overall system.

[0014] In one embodiment, the monitoring unit includes a regulating electro-pneumatic valve and a gas composition detector, wherein,

[0015] One end of the regulating electro-pneumatic valve is connected to the hydrogen transmission pipeline to be regulated through a pipeline for obtaining the regulating gas source, and the other end of the regulating electro-pneumatic valve is connected to the regulating gas composition detector through a pipeline for monitoring the regulating gas source concentration value matching the type of the gas source, and the regulating gas source concentration value after regulation matching the type of the gas source;

[0016] The other end of the regulating gas composition detector is electrically connected to the user terminal.

[0017] In this embodiment, by coordinating the operation of the electronically controlled pneumatic valve and the gas composition detector, precise regulation and real-time monitoring of the gas source concentration are achieved. The system can ensure the matching of the gas source concentration with the required gas source type, and transmit the gas concentration data to the user terminal through a real-time feedback mechanism, enabling the user to promptly grasp the gas source concentration change and make adjustments, thereby improving the controllability of the operation and the reliability of the system. In addition, the system can automatically monitor and adjust the gas source concentration, reducing human intervention and enhancing the intelligent control level. Overall, through precise gas regulation and real-time feedback, the system significantly improves the stability, safety, and efficiency of the system.

[0018] In a second aspect, an embodiment of the present application provides a method for enhancing the inhibition of pipeline hydrogen embrittlement by coupling carbon monoxide and oxygen, which is applied to the above-mentioned system. The method includes:

[0019] Obtain the hydrogen pipeline diameter and gas flow rate of the hydrogen pipeline to be regulated, as well as the elbow diameter for gas distribution regulation of the hydrogen pipeline to be regulated; wherein, the gas source for the gas distribution regulation includes carbon monoxide and oxygen;

[0020] Use the gas source to perform gas distribution regulation on the hydrogen pipeline to be regulated, and monitor the gas source concentration value before regulation and the gas source concentration value after regulation that match the type of the gas source;

[0021] Based on the hydrogen pipeline diameter, the gas flow rate, a preset target gas source concentration value, the gas source concentration value before regulation, the gas source concentration value after regulation, and the elbow diameter, determine a target regulation flow rate that matches the type of the gas source, so that the pressures in the hydrogen pipeline to be regulated and the elbow diameter are consistent.

[0022] The method for enhancing the inhibition of pipeline hydrogen embrittlement by coupling carbon monoxide and oxygen provided in this embodiment provides basic data for subsequent regulation by obtaining parameters such as the diameter, gas flow rate, and elbow diameter of the hydrogen pipeline to be regulated. Through flexible regulation of multiple gas sources, the system can adjust the gas concentration in real time according to the physical and chemical characteristics of different gas sources, and monitor the regulation effect to ensure the accurate achievement of the target gas source concentration. Further combining multiple factors such as the hydrogen pipeline diameter, gas flow rate, concentration value, and elbow diameter, the system can accurately calculate the target regulation flow rate, ensure stable gas flow in the pipeline, and maintain a consistent pressure distribution, thereby avoiding problems such as uneven gas flow or uneven mixing. This comprehensive regulation scheme not only improves the adaptability and flexibility of the system, but also significantly enhances the overall operation efficiency and reduces the probability of failures.

[0023] In one embodiment, determining the target regulation flow rate matching the type of the gas source includes:

[0024] Determining the pre-regulation difference between the gas source concentration value before regulation and the target gas source concentration value;

[0025] Determining the post-regulation difference between the gas source concentration value after regulation and the target gas source concentration value;

[0026] Determining the regulation range of the gas source concentration according to the comparison between the pre-regulation difference and the post-regulation difference;

[0027] Performing gas distribution regulation on the gas flow rate according to the hydrogen transmission pipeline diameter, the elbow pipe diameter, and the regulation range of the gas source concentration to obtain the target regulation flow rate matching the type of the gas source.

[0028] In this embodiment, by calculating the difference between the gas source concentration value before regulation and the target concentration value, the system can clarify the deviation between the current gas concentration and the target concentration, providing data support for subsequent regulation. Then, by monitoring the difference between the gas source concentration value after regulation and the target concentration value, the system can evaluate the regulation effect in real time and determine whether further adjustment is needed. According to the concentration differences before and after regulation, the system determines the regulation range of the gas source concentration and adjusts the gas flow rate accordingly to ensure the matching of the flow rate and the concentration. Finally, based on the pipeline parameters and the regulation range, the system precisely adjusts the gas flow rate, thereby ensuring the precise matching of the gas mixing ratio. This series of operations realizes the precise ratio of the gas concentration and the flow rate, improves the regulation accuracy, stability, and efficiency of the conveying system, and optimizes the operation effect of the hydrogen transmission pipeline.

[0029] In one embodiment, by volume percentage, the target gas source concentration value corresponding to carbon monoxide is less than or equal to 3%, and the target gas source concentration value corresponding to oxygen is less than or equal to 0.5%.

[0030] In this embodiment, by controlling the concentrations of carbon monoxide and oxygen, the risk of hydrogen embrittlement can be effectively reduced. The carbon monoxide concentration is set to be less than or equal to 3%, which can reduce the adsorption and penetration of hydrogen atoms on the metal surface by competing for adsorption sites with hydrogen atoms, thereby inhibiting the diffusion of hydrogen. The oxygen concentration is set to be less than or equal to 0.5%, which can form a dense oxide film on the metal surface, further reducing the penetration of hydrogen, and at the same time avoiding oxidation corrosion caused by too high oxygen concentration. By strictly controlling the concentrations of carbon monoxide and oxygen, the safety and stability of metal materials in a hydrogen environment are significantly improved, the service life of the materials is extended, and accidents and losses caused by hydrogen embrittlement are reduced.

[0031] In one embodiment, when the target gas source concentration value corresponding to carbon monoxide is less than or equal to 0.1% and the target gas source concentration value corresponding to oxygen is less than or equal to 0.1% at the same time, the ratio between the target gas source concentration value corresponding to carbon monoxide and the target gas source concentration value corresponding to oxygen is 1:1.

[0032] In this embodiment, when the concentrations of carbon monoxide and oxygen are respectively controlled to be less than or equal to 0.1% and the concentration ratio of the two is maintained at 1:1, they can play a synergistic role in inhibiting the adsorption and permeation of hydrogen. At this ratio, carbon monoxide competes with hydrogen atoms for adsorption sites, effectively reducing the adsorption of hydrogen on the metal surface. At the same time, oxygen can form a dense oxide film on the metal surface to further inhibit the permeation of hydrogen. By maintaining the concentration ratio of carbon monoxide and oxygen at 1:1, the phenomenon of uneven adsorption caused by too high a concentration of a single gas can be avoided, thereby ensuring a more effective protective effect. The precise control of this gas concentration helps to minimize the risk of hydrogen embrittlement and improve the safety and durability of metal materials in a hydrogen environment.

[0033] In a third aspect, an embodiment of the present application provides a device for enhancing the inhibition of pipeline hydrogen embrittlement by coupling carbon monoxide and oxygen, which is applied to the above-mentioned system. The device includes:

[0034] An acquisition unit, configured to acquire the pipeline diameter and gas flow rate of the hydrogen transmission pipeline to be regulated, and the elbow pipeline diameter for gas distribution regulation of the hydrogen transmission pipeline to be regulated; wherein, the gas source for the gas distribution regulation includes carbon monoxide and oxygen;

[0035] A monitoring unit, configured to use the gas source to perform gas distribution regulation on the hydrogen transmission pipeline to be regulated, and monitor the pre-regulation gas source concentration value and the post-regulation gas source concentration value matching the type of the gas source;

[0036] A regulation unit, configured to determine a target regulation flow rate matching the type of the gas source based on the pipeline diameter of the hydrogen transmission pipeline, the gas flow rate, a preset target gas source concentration value, the pre-regulation gas source concentration value, the post-regulation gas source concentration value, and the elbow pipeline diameter, so as to make the pressures in the hydrogen transmission pipeline to be regulated and the elbow pipeline diameter consistent.

[0037] In a fourth aspect, an embodiment of the present application provides a computer device, including:

[0038] A memory and a processor, which are communicatively connected to each other. The memory stores computer instructions, and the processor executes the above-mentioned method for enhancing the inhibition of pipeline hydrogen embrittlement by coupling carbon monoxide and oxygen by executing the computer instructions.

[0039] Fifth aspect, an embodiment of the present application provides a computer-readable storage medium, on which computer instructions are stored, and the computer instructions are used to cause a computer to execute the method for enhancing the inhibition of pipeline hydrogen embrittlement by coupling carbon monoxide and oxygen as described above. Description of the Drawings

[0040] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0041] Figure 1 Schematic diagram of a system for enhancing the inhibition of pipeline hydrogen embrittlement by coupling carbon monoxide and oxygen provided by an embodiment of the present application;

[0042] Figure 2 Flowchart of a method for enhancing the inhibition of pipeline hydrogen embrittlement by coupling carbon monoxide and oxygen provided by an embodiment of the present application;

[0043] Figure 3 Flowchart of determining a target regulation flow rate matching the type of gas source provided by an embodiment of the present application;

[0044] Figure 4 Schematic diagram of a specific application scenario provided by an embodiment of the present application;

[0045] Figure 5 Experimental principle data diagram of fatigue crack growth rate provided by an embodiment of the present application;

[0046] Figure 6 Experimental principle data diagram of fracture toughness provided by an embodiment of the present application;

[0047] Figure 7 Block diagram of a device for enhancing the inhibition of pipeline hydrogen embrittlement by coupling carbon monoxide and oxygen provided by an embodiment of the present application;

[0048] Figure 8 Schematic diagram of the structure of a computer device provided by an embodiment of the present application.

[0049] Description of the Reference Numerals

[0050] Hydrogen pipeline to be regulated 1, elbow 2, first electro-controlled pneumatic valves 3, 3-1, 3-2, second electro-controlled pneumatic valves 4, 4-1, 4-2, regulating electro-controlled pneumatic valves 41, 41-1, 41-2, gas composition detectors 42, 42-1, 42-2, check valves 5, 5-1, 5-2, coupled regulating electro-controlled pneumatic valve 6, concentration alarm 7, carbon monoxide gas source cylinder 21-1, oxygen gas source cylinder 21-2, valves 22-1, 22-2, 34-1, 34-2, pressure gauges 23-1, 23-2, 32-1, 32-2, carbon monoxide buffer tank 31-1, oxygen buffer tank 31-2, booster pumps 33-1, 33-2. Detailed implementation manners

[0051] To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Apparently, the described embodiments are some, but not all, of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the protection scope of the present application.

[0052] As a clean, low-carbon and sustainable energy, hydrogen energy is increasingly becoming an important part of the global energy transformation. As one of the key technologies for large-scale, efficient and economic transportation of hydrogen energy, pipeline hydrogen transportation has gradually attracted attention. However, the physical and chemical properties of hydrogen are special. Especially in a hydrogen environment, hydrogen molecules will interact with pipeline materials, leading to the occurrence of hydrogen embrittlement. Hydrogen embrittlement is mainly manifested as a decrease in the ductility of pipeline materials, an increase in the propagation of fatigue cracks, and a decrease in fracture toughness. These phenomena seriously affect the safety and service life of pipelines. Therefore, how to effectively prevent or mitigate hydrogen embrittlement and ensure the safety of hydrogen pipeline transportation has become the focus of current research.

[0053] Hydrogen embrittlement occurs when hydrogen molecules are adsorbed on the surface of pipeline materials, dissociate into hydrogen atoms and diffuse into the material interior. These hydrogen atoms accumulate at defects such as dislocations and vacancies in the material interior, causing changes in the material structure and thus leading to embrittlement. Research shows that compared with an air or inert gas environment, the strength change of pipeline materials in a hydrogen environment is relatively small, but their ductility, fatigue resistance and fracture toughness and other indicators decrease significantly. These changes will cause pipeline materials to be more likely to rupture or suffer fatigue failure during hydrogen transportation, thus affecting the safe and stable operation of long-distance hydrogen pipelines.

[0054] In existing protection technologies, a common approach is to add gas inhibitors into the pipeline to slow down or inhibit the occurrence of hydrogen embrittlement. For example, some studies have proposed inhibiting hydrogen embrittlement by blending carbon monoxide. However, this method faces difficulties during implementation. According to the national standard GB / T 37124-2018, there are strict composition limits for carbon monoxide in long-distance natural gas pipelines, and the minimum addition amount proposed by this method exceeds this standard, making it difficult to be widely applied in practice. In addition, simply using gases such as oxygen to inhibit hydrogen embrittlement, its protection effect and the feasibility of actual operation are still limited, and this method does not clearly give the specific gas ratio and incorporation method, nor does it consider long-term stability.

[0055] Another solution protects against hydrogen embrittlement by designing specific operating procedures, but this method requires multiple inflations and emptyings of the pipeline, increasing the time and cost during transportation. In practical applications, such frequent operations cannot be easily carried out during the service process of the pipeline, which makes it quite difficult to apply this protection measure in practice.

[0056] Generally speaking, although some existing technical methods have made progress to a certain extent, they still face problems such as implementation difficulties, high costs, and limited effects. Therefore, in order to promote the large-scale application of hydrogen pipeline transportation, it is necessary to develop a more safe, effective, and highly feasible method for protecting against hydrogen embrittlement. This method should not only be able to reduce the interaction between hydrogen and pipeline materials, but also have the characteristics of simple operation, low cost, and long-lasting effect to ensure the safety and stability of the hydrogen energy transportation system.

[0057] To solve the above technical problems, in this embodiment, a system for enhancing the inhibition of pipeline hydrogen embrittlement by coupling carbon monoxide and oxygen is provided. Figure 1 The following is a schematic diagram of a system for enhancing the inhibition of pipeline hydrogen embrittlement by coupling carbon monoxide and oxygen provided by an embodiment of the present application, as Figure 1 shown. This system includes:

[0058] A monitoring module, which includes a monitoring unit and a user terminal; one end of the monitoring unit is connected to the hydrogen transmission pipeline 1 to be regulated through a pipeline for monitoring the pre-regulation gas source concentration value matching the type of gas source and the post-regulation gas source concentration value matching the type of gas source; the other end of the monitoring unit is electrically connected to the user terminal; the monitoring module is used to determine the gas source concentration regulation range according to the pre-regulation gas source concentration value, the post-regulation gas source concentration value, and the preset target gas source concentration value; wherein, the gas source types include carbon monoxide and oxygen.

[0059] The monitoring unit is the core part of the monitoring module and is responsible for the actual gas concentration detection. The monitoring unit is connected to the hydrogen transmission pipeline 1 to be regulated through a pipeline and can monitor the gas source concentration values before and after regulation. The gas source concentration value before regulation is the initial concentration before adjusting the gas source concentration. The gas source concentration value after regulation is the actual concentration after adjusting the gas source concentration. The measurement of these concentration values can be completed by a mass spectrometer, a chromatograph, an infrared gas component detector, etc., and can be measured continuously or intermittently at different positions of the hydrogen transmission pipeline 1 to be regulated. The other end of the monitoring unit is electrically connected to the user terminal, which can be a computer, a tablet or a dedicated display device, and is used to receive the data transmitted by the monitoring unit and perform display and analysis. Through data transmission, the monitoring unit can not only transmit the concentration value to the user terminal, but also realize remote monitoring and control of the data.

[0060] Specifically, the detection device in the monitoring unit monitors the gas concentrations in the hydrogen transmission pipeline 1 to be regulated in real time, and obtains the gas source concentration value before regulation and the gas source concentration value after regulation. The monitoring unit transmits the collected concentration data to the user terminal through electrical connection. The transmission method can be wired transmission, such as through a cable connection, or wireless transmission, such as through Wi-Fi or Bluetooth, etc. After receiving the data, the user terminal calculates the gas source concentration regulation range according to the preset target gas source concentration value. And calculates the target regulation flow rate corresponding to the gas source according to the gas source concentration regulation range. Once the gas source concentration regulation is completed, the monitoring unit continues to collect the concentration values after regulation and transmits these data back to the user terminal. The user terminal will compare the difference between the gas source concentration value after regulation and the target gas source concentration value. If the gas source concentration after regulation still does not reach the target gas source concentration, the system will automatically adjust and recalculate the gas source concentration regulation range. For example, if the hydrogen concentration after regulation is still lower than the target value, the user terminal will instruct to increase the flow rate or pressure, and vice versa, it may be necessary to reduce the flow rate or take other regulation measures.

[0061] The gas distribution regulation module includes a gas source unit of at least two different gas source types, a buffer unit corresponding to the gas source unit, and a coupling regulation unit; the gas outlet end of the gas source unit is connected to the gas inlet end of the buffer unit through a pipeline; the gas outlet end of the buffer unit is connected to the gas inlet end of the coupling regulation unit through a pipeline; the gas outlet end of the coupling regulation unit is connected to the hydrogen transmission pipeline 1 to be regulated through an elbow 2; the gas distribution regulation module is used to perform gas distribution regulation on the gas flow rate in the hydrogen transmission pipeline 1 to be regulated based on the gas source concentration regulation range.

[0062] The purpose of the gas distribution regulation module is to accurately regulate the gas flow rate in the hydrogen transmission pipeline 1 to be regulated based on the gas source concentration regulation range. The core function of this module is to adjust the mixing ratio of different types of gas sources, so as to achieve precise control of the target gas concentration.

[0063] Specifically, the gas source unit includes at least two different types of gas source units. These units can be the supply sources of different gases such as hydrogen, carbon monoxide, carbon dioxide, sulfur dioxide, etc. Each gas source unit is responsible for providing a specific type of gas. The buffer unit is connected to the gas source unit and is used to stabilize the gas pressure and flow rate output by the gas source unit. The buffer unit can reduce the fluctuations in the output of the gas source unit and ensure that the gas is in a stable state before entering the coupling and regulation unit. The coupling and regulation unit mixes and regulates the gases from different buffer units to achieve the required gas concentration and flow rate. The coupling and regulation unit precisely controls the flow rate ratio of each gas source to achieve precise regulation of the composition of the mixed gas. The elbow 2, as a part connecting the coupling and regulation unit and the hydrogen transmission pipeline 1 to be regulated, is used to realize the gas transmission and ensure the conversion of the flow direction.

[0064] A system for enhancing the inhibition of pipeline hydrogen embrittlement by coupling carbon monoxide and oxygen provided in this embodiment realizes precise monitoring and automatic regulation of the gas source concentration in the hydrogen transmission pipeline to be regulated through the collaborative work of the monitoring module and the gas distribution and regulation module. The monitoring module monitors the gas source concentration in real time, compares the gas source concentration values before and after regulation with the preset target gas source concentration value, calculates the regulation range of the gas source concentration, and provides a basis for adjustment for the gas distribution and regulation module. The gas distribution and regulation module automatically adjusts the gas flow rate and ratio by precisely controlling the gas source unit, the buffer unit, and the coupling and regulation unit to ensure that the gas concentration meets the requirements. The system supports flexible regulation of multiple gas source types, enhances adaptability and operability, and at the same time improves the response speed and regulation accuracy of the system, ensuring the stability and consistency of the gas source concentration. This automated and precise regulation mechanism greatly improves the efficiency, stability, and reliability of the system.

[0065] In some embodiments, a first electro-pneumatic valve 3 is connected to the pipeline between the gas source unit and the buffer unit and is used to regulate the first flow rate of the gas source from the gas source unit into the buffer unit;

[0066] A second electro-pneumatic valve 4 is connected to the pipeline between the buffer unit and the coupling and regulation unit and is used to regulate the second flow rate of the gas source from the buffer unit into the coupling and regulation unit;

[0067] Among them, the first flow rate is greater than a specified multiple of the second flow rate.

[0068] Specifically, the first electro-pneumatic valve 3 is located on the pipeline between the gas source unit and the buffer unit and is used to regulate the first flow rate of the gas source from the gas source unit into the buffer unit. By adjusting the opening degree of the valve, the flow rate and velocity of the gas source can be controlled to ensure that the gas source reaches the required flow rate before entering the buffer unit. The second electro-pneumatic valve 4 is located on the pipeline between the buffer unit and the coupling and regulation unit and is used to regulate the second flow rate of the gas source from the buffer unit into the coupling and regulation unit. Similarly, by adjusting the opening degree of the valve, the flow rate and velocity of the gas source are controlled.

[0069] The first flow rate is greater than a specified multiple of the second flow rate. Preferably, the first flow rate > 2 × the second flow rate. This is to ensure that the gas source is sufficiently stable and uniform within the buffer unit. Before entering the coupling regulation unit, the flow rate must be reduced to prevent air flow impact and non-uniform mixing. When the flow rate of the gas source is too fast, before entering the coupling regulation unit, the role of the buffer unit is to absorb the impact force that such a fast air flow may bring. By making the multiple of the first flow rate greater than the second flow rate, the buffer unit can effectively reduce the air flow impact and ensure that the gas source is in a stable and uniform state before entering the coupling regulation unit, thereby improving the regulation accuracy and mixing effect of the entire system.

[0070] In this embodiment, by precisely regulating two electro-pneumatic valves, which are respectively located between the gas source unit and the buffer unit, and between the buffer unit and the coupling regulation unit, the gas source flow rate is adjusted to ensure the stability and accuracy of the air flow within the system. The first electro-pneumatic valve regulates the flow rate of the gas source flowing into the buffer unit to ensure the stable entry of the gas source; the second electro-pneumatic valve adjusts the flow rate when the gas source enters the coupling regulation unit to avoid uneven or too fast air flow. By setting the design that the first flow rate is greater than the second flow rate, air flow impact can be effectively avoided, the smoothness and uniformity of the gas source flow can be maintained, and the control accuracy of the system can be improved. It not only improves the system response speed and stability, but also optimizes the regulation of the gas flow concentration, reduces energy loss, and improves the efficiency and reliability of the overall system.

[0071] In some embodiments, the monitoring unit includes a regulating electro-pneumatic valve 41 and a gas component detector 42, wherein,

[0072] One end of the regulating electro-pneumatic valve 41 is connected to the hydrogen pipeline 1 to be regulated through a pipeline for obtaining the regulating gas source, and the other end of the regulating electro-pneumatic valve 41 is connected to the regulating gas component detector 42 through a pipeline for monitoring the regulating gas source concentration value matching the type of the gas source, and the regulated gas source concentration value matching the type of the gas source;

[0073] The other end of the regulating gas component detector 42 is electrically connected to the user terminal.

[0074] Specifically, one end of the regulated electro-pneumatic valve 41 is connected to the hydrogen pipeline 1 to be regulated through a pipeline, for obtaining the gas source from this pipeline. The gas source provided by the hydrogen pipeline 1 to be regulated may have fluctuations in parameters such as concentration and flow rate. Therefore, the function of the regulated electro-pneumatic valve 41 is to adjust its opening degree according to actual needs to control the gas flow rate and velocity. By precisely controlling the opening degree of the valve, the gas flow is regulated to make it reach the conditions suitable for monitoring and further processing. The adjustment of the valve opening degree ensures the stability of the gas flow rate, avoids the influence caused by gas flow fluctuations, and thus guarantees the accuracy of subsequent detection and regulation operations. One end of the gas composition detector 42 is connected to the regulated electro-pneumatic valve 41 through a pipeline, for receiving the gas source before or after being regulated by the regulated electro-pneumatic valve 41. The main function of the gas composition detector 42 is to monitor the gas concentration in real time, especially the concentration value of the regulated gas source. The detector can identify various gas components, such as hydrogen, oxygen, etc., and detect the gas concentration in real time according to the feedback data of the gas composition detector 42. It can provide the accurate value of the gas source concentration to ensure that the gas composition meets the predetermined requirements. During the operation of the system, the gas composition detector 42 detects the gas source concentration in real time, and transmits the detected gas concentration data to the user terminal through electrical connection. The user terminal is usually a computer, a display device or other devices for data analysis and monitoring. Through this device, the user can view the gas concentration change situation in real time and adjust the system parameters according to actual needs. The user can also perform analysis through the terminal to evaluate whether the gas concentration meets the production or experimental requirements, and promptly discover and handle abnormal situations.

[0075] In this embodiment, through the coordinated operation of the regulated electro-pneumatic valve and the gas composition detector, precise regulation and real-time monitoring of the gas source concentration are achieved. The system can ensure the matching of the gas source concentration and the required gas source type, and transmit the gas concentration data to the user terminal through the real-time feedback mechanism, enabling the user to promptly grasp the gas source concentration change and make adjustments, thereby improving the controllability of the operation and the reliability of the system. In addition, the system can automatically monitor and adjust the gas source concentration, reducing human intervention and enhancing the intelligent control level. Overall, through precise gas regulation and real-time feedback, this system significantly improves the stability, safety and efficiency of the system.

[0076] In some embodiments, corresponding valves and pressure gauges are provided on the pipeline, and a check valve 5 is also provided on the connecting pipeline between the buffer unit and the coupling regulation unit.

[0077] Specifically, the valve can adjust the gas flow rate in the pipeline and control the gas velocity and flow rate by changing the valve opening. For example, between the gas source unit and the buffer unit, the valve can adjust the gas flow rate entering the buffer unit to meet different process requirements. The valve can also be used to cut off or connect the gas flow in the pipeline. When it is necessary to stop the gas flow or perform maintenance, the corresponding valve can be closed to ensure the safety and stability of the system. The pressure gauge is used to monitor the gas pressure in the pipeline in real time and provide intuitive pressure information for the operator. By observing the reading of the pressure gauge, it can be judged whether the pressure in the pipeline is normal, and abnormal pressure conditions can be detected in a timely manner. The reading of the pressure gauge can be used as a basis for adjusting the valve opening. For example, between the buffer unit and the coupling control unit, the valve opening can be adjusted according to the reading of the pressure gauge to maintain the pressure stability in the pipeline. When the reading of the pressure gauge exceeds the set safety range, the alarm system can be triggered to remind the operator to take corresponding safety measures to prevent equipment damage or safety accidents caused by too high or too low pressure. The one-way valve 5 is arranged on the connecting pipeline between the buffer unit and the coupling control unit to ensure that the gas can only flow from the buffer unit to the coupling control unit and prevent gas backflow. This helps to maintain the stability and safety of the system and avoid gas composition confusion or equipment damage caused by backflow.

[0078] In this embodiment, by setting a valve and a pressure gauge on the pipeline and installing a one-way valve between the buffer unit and the coupling control unit, the system realizes the precise control of gas flow rate and pressure. The valve can adjust the gas flow rate and velocity to ensure stable supply; the pressure gauge monitors the gas pressure in the pipeline in real time to ensure that the system operates within a suitable pressure range. The one-way valve prevents gas backflow, ensures the correct gas flow direction, and avoids pressure instability or equipment damage caused by backflow. It not only improves the safety and stability of gas supply, but also optimizes the response speed of the system, reduces human intervention, realizes automatic and intelligent control, and thus improves the reliability and efficiency of the system.

[0079] In some embodiments, the coupling control unit includes a coupling control electro-pneumatic valve 6, and a concentration alarm 7 is also arranged on the hydrogen transmission pipeline 1 to be controlled.

[0080] Specifically, the coupled control electro-pneumatic valve 6 is the core component of the coupled control unit and is used to control the mixing and blending processes of different gas sources. By adjusting the valve opening, the flow rate ratio of each gas source entering the mixing area can be precisely controlled, thereby achieving precise control of the composition of the mixed gas. The concentration alarm 7 is installed on the hydrogen transmission pipeline 1 to be regulated and is used to monitor the concentration of specific gas components in the pipeline in real time. For example, it monitors the concentration of gases such as oxygen. When the monitored gas concentration exceeds the set safety threshold (such as when the oxygen concentration exceeds 0.5%), the concentration alarm will immediately send an alarm signal to remind the operator or the automatic control system to take corresponding safety measures. In an emergency, the concentration alarm 7 is linked with the coupled control electro-pneumatic valve 6 to achieve an emergency cut-off of the blending process. When the concentration alarm 7 detects that the gas concentration exceeds the standard, it will trigger the coupled control electro-pneumatic valve 6 to close and stop the blending process. This can quickly cut off the source of dangerous gases, prevent the continued entry of over-standard gases into the pipeline, and reduce safety risks. After the concentration alarm 7 triggers an emergency cut-off, the system will continuously monitor the gas concentration in the pipeline. When the concentration drops to the safe range, the coupled control electro-pneumatic valve 6 will reopen to resume the blending process. This can maintain the normal operation of the system while ensuring safety and avoid long-term shutdowns caused by over-standard concentrations.

[0081] In this embodiment, through the design of the coupled control electro-pneumatic valve and the concentration alarm, precise adjustment of the gas flow rate and real-time monitoring of the hydrogen concentration are achieved. The coupled control electro-pneumatic valve can automatically adjust the gas flow rate and pressure according to the system requirements to ensure the stability and flexibility during the gas transmission process, while the concentration alarm continuously monitors the gas concentration to ensure that the system is always within the safe range. When the concentration is abnormal, the alarm can promptly send an alarm to effectively prevent safety hazards caused by leakage or excessive concentration. This intelligent control mechanism not only improves the efficiency of gas transmission but also enhances the safety and reliability of the system, and can quickly respond and take corresponding emergency measures in case of abnormalities. Through precise flow control and real-time concentration monitoring, the system can ensure normal operation while effectively coping with emergencies and enhancing the overall safety guarantee of operation.

[0082] In some embodiments, the distance L between the coupled control electro-pneumatic valve 6 and the control electro-pneumatic valve 41 in the monitoring unit for monitoring the concentration value of the regulated gas source is greater than or equal to 10 times the hydrogen transmission pipeline diameter d of the hydrogen transmission pipeline 1 to be regulated 0 .

[0083] Specifically, after gas mixing at the coupled control electro-pneumatic valve 6, a certain distance is required for the gas to mix thoroughly. If the distance is too short, it may lead to uneven mixing, affecting the accurate monitoring of the gas source concentration value after regulation by the monitoring unit. If the distance is too short, the mixed gas may not reach a uniform state, resulting in a large deviation in the monitoring results. After a certain distance from the coupled control electro-pneumatic valve 6, the gas flow pattern will gradually tend to be stable, which is conducive to the monitoring unit more accurately monitoring the gas concentration. After ten times the diameter of the hydrogen transmission pipeline, the gas flow pattern is more likely to reach a laminar state. In the laminar state, the gas flow is more stable, the mixing effect is better, which is conducive to subsequent monitoring and regulation.

[0084] In this embodiment, the distance between the coupled control electro-pneumatic valve and the monitoring unit is set to be more than 10 times the diameter of the hydrogen transmission pipeline to be regulated, which can effectively avoid the influence of disturbances during gas flow on the concentration monitoring results. The longer distance allows the gas to mix more evenly during transportation, avoiding local fluctuations caused by valve regulation, ensuring that the gas concentration monitored is more stable, and improving the accuracy and reliability of monitoring. In addition, the regulation process of gas flow and pressure is optimized, reducing the influence of local concentration changes, thereby improving the system's response speed, regulation effect and safety, and ensuring the efficient and stable operation of the entire gas transportation process.

[0085] According to the embodiments of the present application, an embodiment of a method for suppressing pipeline hydrogen embrittlement by coupling and enhancing with carbon monoxide and oxygen is provided. It should be noted that the steps shown in the flowchart of the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions, and although the logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in a different order than here.

[0086] In this embodiment, a method for suppressing pipeline hydrogen embrittlement by coupling and enhancing with carbon monoxide and oxygen is provided, which can be used in the above system. Figure 2 The flowchart of a method for suppressing pipeline hydrogen embrittlement by coupling and enhancing with carbon monoxide and oxygen provided by the embodiments of the present application is as Figure 2 shown, and this process includes the following steps:

[0087] Step S1, obtain the diameter of the hydrogen transmission pipeline and the gas flow rate of the hydrogen transmission pipeline to be regulated, as well as the diameter of the elbow pipe for gas distribution regulation of the hydrogen transmission pipeline to be regulated; wherein, the gas sources for gas distribution regulation include carbon monoxide and oxygen.

[0088] Specifically, the pipe diameter and gas flow rate of the hydrogen pipeline to be regulated directly affect the stability of gas flow, the flow rate, and their mixing degree. If the pipe diameter of the hydrogen pipeline is too small or the flow rate is too large, it may lead to unstable air flow and affect subsequent concentration regulation. The gas flow at the elbow is easily affected by turbulence and pressure drop. Therefore, the elbow diameter plays an important role in ensuring uniform gas distribution during the flow process. By precisely controlling the elbow diameter, concentration fluctuations caused by uneven local air flow can be avoided.

[0089] Step S3: Use the gas source to perform gas distribution regulation on the hydrogen pipeline to be regulated, and monitor the gas source concentration value before regulation and the gas source concentration value after regulation that match the type of the gas source.

[0090] Specifically, the system will use multiple gas sources to precisely mix the gases in the hydrogen pipeline to be regulated. This step requires real-time knowledge of the flow rates and concentrations of different gas sources to ensure that the mixed gas reaches the preset target gas source concentration. The matching between the gas source type and the regulation target is crucial. Therefore, efficient sensors and real-time monitoring devices are needed to accurately record the concentrations before and after regulation.

[0091] Step S5: Based on the pipe diameter of the hydrogen pipeline, the gas flow rate, the preset target gas source concentration value, the gas source concentration value before regulation, the gas source concentration value after regulation, and the elbow diameter, determine the target regulation flow rate that matches the type of the gas source to make the pressures in the hydrogen pipeline to be regulated and the elbow diameter consistent.

[0092] Specifically, calculate the target regulation flow rate through the pipeline parameters and gas source concentration data. Different structures of the hydrogen pipeline to be regulated and the elbow may lead to uneven pressure distribution. Therefore, by regulating the flow rate to make the pressures of the gas in the hydrogen pipeline to be regulated and the elbow consistent, stable gas flow in the pipeline can be ensured, and local pressure fluctuations or gas accumulation can be avoided, which is crucial for the accuracy of gas mixing.

[0093] A method for enhancing the inhibition of pipeline hydrogen embrittlement by coupling carbon monoxide and oxygen provided in this embodiment provides basic data for subsequent regulation by obtaining parameters such as the pipe diameter, gas flow rate, and elbow diameter of the hydrogen pipeline to be regulated. Through the flexible regulation of multiple gas sources, the system can adjust the gas concentration in real time according to the physical and chemical characteristics of different gas sources, and monitor the regulation effect to ensure the accurate achievement of the target gas source concentration. Further combining multiple factors such as the pipe diameter, gas flow rate, concentration value, and elbow diameter of the hydrogen pipeline, the system can accurately calculate the target regulation flow rate, ensure stable gas flow in the pipeline, and maintain a consistent pressure distribution, thereby avoiding problems such as uneven air flow or uneven mixing. This comprehensive regulation scheme not only improves the adaptability and flexibility of the system, but also significantly enhances the overall operation efficiency and reduces the probability of failures.

[0094] Figure 3 The flowchart for determining the target regulation flow rate matching the type of gas source provided by the embodiments of the present application may include the following steps:

[0095] Step S51: Determine the pre-regulation difference between the gas source concentration value before regulation and the target gas source concentration value;

[0096] Step S53: Determine the post-regulation difference between the gas source concentration value after regulation and the target gas source concentration value;

[0097] Step S55: Determine the regulation range of the gas source concentration according to the comparison of the pre-regulation difference and the post-regulation difference;

[0098] Step S57: Perform gas flow rate regulation and matching according to the hydrogen transmission pipeline diameter, elbow diameter and the regulation range of the gas source concentration to obtain the target regulation flow rate matching the type of gas source.

[0099] Specifically, the pre-regulation difference between the gas source concentration value f 0 before regulation and the target gas source concentration value x is x - f 0 , and the post-regulation difference between the gas source concentration value f 1 after regulation and the target gas source concentration value x is f 1 - x. It should be noted that the concentration value here is calculated as a percentage. According to the comparison of the pre-regulation difference and the post-regulation difference, the regulation range of the gas source concentration is determined. This range reflects the magnitude of the adjustment required for the gas source concentration to reach the target gas source concentration. The regulation range of the gas source concentration = (x - f 0 ) - (f 1 - x). According to the formula v 1 = d 0 2 × v 0 ×{(x - f 0 ) - (f 1 - x)} / d 1 2 the target regulation flow rate is calculated, where v 1 is the target regulation flow rate, v 0 is the gas flow rate, d 0 is the hydrogen transmission pipeline diameter, d 1 is the elbow diameter, f 0 is the gas source concentration value before regulation, f 1 is the gas source concentration value after regulation, and x is the target gas source concentration value. By accurately calculating the regulation range of the gas source concentration and the target regulation flow rate, the mixing uniformity and pressure balance of the gas in the pipeline can be ensured, and the stability and safety of the system can be improved.

[0100] In this embodiment, by calculating the difference between the gas source concentration value before regulation and the target concentration value, the system can clarify the deviation between the current gas concentration and the target concentration, providing data support for subsequent regulation. Then, by monitoring the difference between the gas source concentration value after regulation and the target concentration value, the system evaluates the regulation effect in real time to determine whether further adjustment is needed. According to the concentration differences before and after regulation, the system determines the regulation range of the gas source concentration and adjusts the gas flow rate accordingly to ensure the matching of the flow rate and the concentration. Finally, based on the pipeline parameters and the regulation range, the system precisely adjusts the gas flow rate to ensure the precise matching of the gas mixing ratio. This series of operations achieves the precise ratio of gas concentration and flow rate, improving the regulation accuracy, stability, and efficiency of the conveying system and optimizing the operation effect of the hydrogen pipeline.

[0101] In some embodiments, when the gas source includes carbon monoxide and oxygen, by volume percentage, the target gas source concentration value corresponding to carbon monoxide is less than or equal to 3%, and the target gas source concentration value corresponding to oxygen is less than or equal to 0.5%.

[0102] Specifically, carbon monoxide has a strong adsorption ability on the metal surface and can compete with hydrogen atoms for adsorption sites, thereby reducing the adsorption and penetration of hydrogen atoms on the metal surface. By setting the target concentration value of carbon monoxide to be less than or equal to 3%, the penetration of hydrogen can be inhibited to a certain extent, reducing the risk of hydrogen embrittlement. The oxide film formed by oxygen on the metal surface can prevent the penetration of hydrogen. The adsorption ability of oxygen is stronger than that of hydrogen, and a dense oxide film can be formed on the metal surface to reduce the adsorption and penetration of hydrogen. By setting the target concentration value of oxygen to be less than or equal to 0.5%, while maintaining the effect of the oxide film, other problems caused by too high oxygen concentration (such as oxidation corrosion) can be avoided. By strictly controlling the concentrations of carbon monoxide and oxygen, the penetration and diffusion of hydrogen are reduced, thereby reducing the risk of hydrogen embrittlement. This setting helps to improve the safety and stability of metal materials in a hydrogen environment, extend the service life of the materials, and reduce accidents and losses caused by hydrogen embrittlement.

[0103] In this embodiment, by controlling the concentrations of carbon monoxide and oxygen, the risk of hydrogen embrittlement can be effectively reduced. The concentration of carbon monoxide is set to be less than or equal to 3%, which can compete with hydrogen atoms for adsorption sites, reduce the adsorption and penetration of hydrogen atoms on the metal surface, and thus inhibit the diffusion of hydrogen. The concentration of oxygen is set to be less than or equal to 0.5%, which can form a dense oxide film on the metal surface to further reduce the penetration of hydrogen, while avoiding oxidation corrosion caused by too high oxygen concentration. By strictly controlling the concentrations of carbon monoxide and oxygen, the safety and stability of metal materials in a hydrogen environment are significantly improved, the service life of the materials is extended, and accidents and losses caused by hydrogen embrittlement are reduced.

[0104] In some embodiments, when the target gas source concentration value corresponding to carbon monoxide is less than or equal to 0.1% and the target gas source concentration value corresponding to oxygen is less than or equal to 0.1%, the ratio between the target gas source concentration value corresponding to carbon monoxide and the target gas source concentration value corresponding to oxygen is 1:1.

[0105] Specifically, maintaining the ratio of carbon monoxide to oxygen at 1:1 allows them to play a synergistic role in inhibiting hydrogen adsorption and permeation. At this ratio, carbon monoxide and oxygen can more effectively compete for hydrogen adsorption sites and form a stable oxide film, jointly reducing the risk of hydrogen embrittlement. This balance helps avoid uneven adsorption caused by too high a concentration of a single gas, thus more effectively inhibiting hydrogen adsorption and permeation.

[0106] In this embodiment, by controlling the concentrations of carbon monoxide and oxygen to be less than or equal to 0.1% respectively and maintaining the concentration ratio of the two at 1:1, they can play a synergistic role in inhibiting hydrogen adsorption and permeation. At this ratio, carbon monoxide competes with hydrogen atoms for adsorption sites, effectively reducing the adsorption of hydrogen on the metal surface, while oxygen can form a dense oxide film on the metal surface to further inhibit the permeation of hydrogen. By maintaining the concentration ratio of carbon monoxide to oxygen at 1:1, the phenomenon of uneven adsorption caused by too high a concentration of a single gas can be avoided, thus ensuring a more effective protective effect. This precise control of gas concentrations helps to minimize the risk of hydrogen embrittlement and improve the safety and durability of metal materials in a hydrogen environment.

[0107] The following describes the specific implementation of the present invention in combination with a specific application scenario. Refer to Figure 4 , the principle of using the coupling effect of carbon monoxide and oxygen to enhance the inhibition of hydrogen embrittlement of materials is first proposed, and experimental data are given for verification:

[0108] It consists of a monitoring module and a gas distribution control module, specifically including: The monitoring module includes two monitoring units and a user terminal. The monitoring unit includes a regulating electro-pneumatic valve 41-1, a regulating electro-pneumatic valve 41-2, a gas composition detector 42-1, and a gas composition detector 42-2. The gas distribution control module includes two gas source units, two buffer units, and a coupling control unit. The gas source unit includes a carbon monoxide gas source bottle 21-1, an oxygen gas source bottle 21-2, valves 22-1, 22-2, pressure gauges 23-1, 23-2. The buffer unit includes a carbon monoxide buffer tank 31-1, an oxygen buffer tank 31-2, pressure gauges 32-1, 32-2, booster pumps 33-1, 33-2, valves 34-1, 34-2. The coupling control unit includes a coupling control electro-pneumatic valve 6. And the first electro-pneumatic valves 3-1, 3-2, the second electro-pneumatic valves 4-1, 4-2, check valves 5-1, 5-2, and a concentration alarm 7 on the connecting pipes.

[0109] The carbon monoxide gas source bottle 21-1 provides carbon monoxide, and the oxygen gas source bottle 21-2 provides oxygen. The pressure range in the gas source bottle is 0-25 MPa. The valves 22-1, 22-2, pressure gauges 23-1, 23-2 control the valve switches and view the pressure readings. The pressure in the bottle is used as the initial pressure and recorded as the input quantity.

[0110] The carbon monoxide gas source bottle 21-1 is connected to the carbon monoxide buffer tank 31-1 through a pipeline. The first electro-pneumatic valve 3-1 in the connecting pipeline controls the gas flow rate, velocity, and pressure. The gas cylinder needs to be refilled and replaced in a timely manner according to the decrease in the pressure reading at the gas cylinder mouth. The booster pump 33-1 is used to boost the pressure of the carbon monoxide buffer tank 31-1 to reach the working pressure of the hydrogen pipeline 1 to be regulated. The oxygen gas source bottle 21-2 is connected to the oxygen buffer tank 31-2 through a pipeline. The first electro-pneumatic valve 3-2 in the connecting pipeline controls the gas flow rate, velocity, and pressure. The gas cylinder needs to be refilled and replaced in a timely manner according to the decrease in the pressure reading at the gas cylinder mouth. The booster pump 33-2 is used to boost the pressure of the oxygen buffer tank 31-2 to reach the working pressure of the hydrogen pipeline 1 to be regulated.

[0111] The main function of the gas composition detector 42-1 is to detect the content of carbon monoxide and oxygen in the hydrogen pipeline 1 to be regulated before the addition of carbon monoxide and oxygen, which is used as the input quantity. The user terminal is responsible for controlling the input quantity program. The main function of the gas composition detector 42-2 is to detect the content of carbon monoxide and oxygen in the hydrogen pipeline 1 to be regulated after the addition of carbon monoxide and oxygen, which is used as the input quantity. The user terminal is responsible for controlling the output quantity program.

[0112] The gas composition detector 42-1 is connected to the upstream of the hydrogen transmission pipeline 1 to be regulated, and the gas composition detector 42-2 is connected to the downstream of the hydrogen transmission pipeline 1 to be regulated. The signal terminal is connected to the user terminal. Several electro-pneumatic valves in the gas distribution regulation module are connected to the user terminal of the monitoring module by means of wireless or wired signal connection lines.

[0113] The regulation electro-pneumatic valve 41-1 is connected to the upstream of the hydrogen transmission pipeline 1 to be regulated through a pipeline, and a part of the gas in the hydrogen transmission pipeline 1 to be regulated is led out and connected to the gas composition detector 42-1 of the monitoring module to detect and obtain the concentrations of carbon monoxide and oxygen f 41-1-1 =C(CO)1, f 41-1-2 =C(O 2 )1.

[0114] The regulation electro-pneumatic valve 41-2 is connected to the downstream of the hydrogen transmission pipeline 1 to be regulated through a pipeline, and a part of the gas in the hydrogen transmission pipeline 1 to be regulated is led out and connected to the gas composition detector 42-2 of the monitoring module to detect and obtain the concentrations of carbon monoxide and oxygen f 41-2-1 =C(CO)6, f 41-2-2 =C(O 2 )6.

[0115] The first electro-pneumatic valve 3-1 connects to control the flow rate, velocity, and pressure of carbon monoxide gas in the gas source transported to the carbon monoxide buffer tank 31-1, and the velocity is: f 3-1 =V(CO)2.

[0116] The first electro-pneumatic valve 3-2 connects to control the flow rate, velocity, and pressure of oxygen gas in the gas source transported to the oxygen buffer tank 31-2, and the velocity is: f 3-2 =V(O 2 )3.

[0117] The second electro-pneumatic valve 4-2 connects to control the flow rate, velocity, and pressure of oxygen gas flowing out of the oxygen buffer tank 31-2, and the velocity is: f 4-2 =V(O 2 )4.

[0118] The second electro-pneumatic valve 4-1 connects to control the flow rate, velocity, and pressure of carbon monoxide gas flowing out of the carbon monoxide buffer tank 31-1, and the velocity is: f 4-1 =V(CO)5.

[0119] The coupling regulation electro-pneumatic valve 6 connects to control the confluence of the carbon monoxide buffer tank 31-1 and the oxygen buffer tank 31-2, as well as the flow rate, velocity, and pressure of the hydrogen transmission pipeline 1 to be regulated.

[0120] In order to keep the pressures in the hydrogen transmission pipeline 1 to be regulated and the elbow 2 consistent, the target regulation velocity of the coupling regulation electro-pneumatic valve 6 matching the type of the gas source is:

[0121] v 1 (CO)=d 0 2 ×v 0 ×{(x(CO)-f 41-1-1 )-(f 41-2-1 -x(CO))} / d 1 2

[0122] v 1 (O 2 )=d 0 2 ×v 0 ×{(x(O 2 )-f 41-1-2 )-(f 41-2-2 -x(O 2 ))} / d 1 2

[0123] Among them, v 1 is the target regulated flow rate, v 0 is the gas flow rate, d 0 is the diameter of the hydrogen transmission pipeline, d 1 is the diameter of the elbow pipe, and x is the target gas source concentration value.

[0124] The main functions of the booster pumps 33-1 and 33-2 are to boost the pressure of carbon monoxide and oxygen in the buffer tank to the pressure level in the hydrogen transmission pipeline 1 to be regulated.

[0125] The carbon monoxide buffer tank 31-1 and the oxygen buffer tank 31-2 are mainly used to pre-mix the gas at the pressure level of the hydrogen transmission pipeline 1 to be regulated. The gas at the unified pressure level is input into the hydrogen transmission pipeline 1 to be regulated through the elbow pipe 2 to ensure no backflow. With the pressure and diameter being certain, only by regulating the flow rate in the elbow pipe 2 can the mixing ratio be regulated.

[0126] The main functions of the one-way valves 5-1 and 5-2 are to prevent the gas in the pipeline from flowing back to the buffer tank.

[0127] The concentration alarm 7 is mainly used to detect that the oxygen concentration in the pipeline does not exceed 0.5%. Once it exceeds, it immediately transmits a signal to the user terminal to stop the mixing input of the coupled regulated electro-pneumatic valve 6.

[0128] When the diameter d 1 of the elbow pipe in the mixing pipe section and the diameter d 0 of the hydrogen transmission pipeline 1 to be regulated are certain, by keeping the pressures of the two pipe sections consistent, the mixing ratio can be controlled by regulating the flow rate.

[0129] The length L of the mixing pipe section from the coupling control electro-pneumatic valve 6 to the downstream of the hydrogen transmission pipeline 1 to be regulated must be greater than ten times the pipe diameter d of the hydrogen transmission pipeline 0 , that is, L≥10×d 0 , because after mixing, ten times the pipe diameter d of the hydrogen transmission pipeline 0 is required to ensure uniform mixing and reach the laminar flow state.

[0130] Step S1001: First, the carbon monoxide in the carbon monoxide gas source bottle 21-1 and the oxygen in the oxygen gas source bottle 21-2 are replenished to 0-25 MPa. Turn on the monitoring module and connect it to each electro-pneumatic valve and the concentration alarm of the gas distribution control module. Set up the above system on one side of the hydrogen transmission pipeline 1 to be regulated, access the signal, and debug the seven electro-pneumatic valves and the gas component detector. Record the pipe diameter d 0 , pressure P and gas flow velocity v 0 of the hydrogen transmission pipeline in the area as the input constant quantity.

[0131] Step S1002: Read the regulating electro-pneumatic valve 41-1, and the user terminal obtains the input quantity: f 41-1-1 =C(CO)1, f 41-1-2 =C(O 2 )1.

[0132] Step S1003: Read the regulating electro-pneumatic valve 41-2, and the user terminal obtains the input quantity: f 41-2-1 =C(CO)6, f 41-2-2 =C(O 2 )6. At this time, the coupling control electro-pneumatic valve 6 is not opened, that is, when mixing has not started, f 41-1-1 =f 41-2-1 , f 41-1-2 =f 41-2-2 .

[0133] Step S1004: At this time, according to the gas flow velocity of the hydrogen transmission pipeline 1 to be regulated, adjust the flow velocity f of the first electro-pneumatic valve 3-1 3-1 =V(CO)2 and the flow velocity f of the first electro-pneumatic valve 3-2 3-2 =V(O 2 )3 to ensure that the pressure of the gas buffer tank remains the same as that of the hydrogen transmission pipeline 1 to be regulated, and increase the flow velocity for timely replenishment.

[0134] Step S1005: Then, according to the flow rates of the second electro-pneumatic valve 4-1 and the second electro-pneumatic valve 4-2, which are f 4-1 =V(CO)5, f 4-2 =V(O 2 )4 respectively, control f 3-1 >2×f 4-1 , f 3-2 >2×f4-2 ; Meanwhile, refer to f 41-1-1 =C(CO)1, f 41-1-2 =C(O 2 )1, regulate f 4-1 =V(CO)5, f 4-2 =V(O 2 )4's flow rate. For example, when there is already a certain amount of carbon monoxide in the pipeline, at this time f 4-1 =V(CO)5 will decrease according to f 41-1-1 =C(CO)1, but f 4-2 =V(O 2 )4 remains unchanged, and then regulate the flow rate entering the coupled regulation electro-pneumatic valve 6. At this time, the difference in pipe diameters at these two places needs to be calculated and taken into account for control.

[0135] Step S1006: The input for controlling the flow rate of the coupled regulation electro-pneumatic valve 6 is:

[0136] v 1 (CO)=d 0 2 ×v 0 ×{(x(CO)-f 41-1-1 )-(f 41-2-1 -x(CO))} / d 1 2

[0137] v 1 (O 2 )=d 0 2 ×v 0 ×{(x(O 2 )-f 41-1-2 )-(f 41-2-2 -x(O 2 ))} / d 1 2

[0138] Wherein, v 1 is the target regulated flow rate, v 0 is the gas flow rate, d 0 is the hydrogen pipeline diameter, d 1 is the elbow pipe diameter, and x is the target gas source concentration value.

[0139] Step S1007: When opening each valve for proportioning, pay attention to the changes in f 41-2-1 and f 41-2-2 in a timely manner, and adjust v 1 (CO) and v 1 (O 2 ) in a timely manner according to the changes. Ensure that the concentration blending is accurately controlled at x(CO) and x(O2) through the above steps.

[0140] Step S1008: If the concentration alarm 7 alarms, that is, the oxygen concentration in the pipeline exceeds 0.5%, the coupling control electro-pneumatic valve 6 is urgently cut off to stop blending. After the concentration drops, blending resumes.

[0141] Step S1009: If the pressure and flow rate in the pipeline change, monitor in real time and repeat the above steps 1001 - 1007 to adjust the blending scheme.

[0142] According to the above blending scheme, combined with the typical pipe diameters of existing pipelines, assuming f 41-1-1 = C(CO)1 = 0.02%, f 41-1-2 = C(O 2 )1 = 0, when the final blending target for the two gases is x(CO) = 1000 ppm and x(O 2 ) = 1000 ppm, the following Table 1 gives the reference values for blending inputs:

[0143] Table 1 Example Table of Input Quantities for the Gas Mixture Blending Method

[0144]

[0145] Please refer to Figure 5 the experimental principle data graph of fatigue crack growth rate provided by the embodiment of the present application. As shown in the figure, at the same concentration, compared with the hydrogen environment without impurities, in the hydrogen environment doped with carbon monoxide or oxygen alone at the same higher ΔK value, the fatigue crack growth rate of the X80 pipeline steel material can only be reduced by about 60%; while when carbon monoxide and oxygen are used in combination, the reduction effect can be increased to about 90%. Therefore, the principle of using the gas coupling effect to enhance the inhibition of material hydrogen embrittlement in this implementation scheme is supported by the fatigue crack growth experiment.

[0146] Please refer to Figure 6 the experimental principle data graph of fracture toughness provided by the embodiment of the present application. As shown in the figure, at the same concentration, compared with the hydrogen environment without impurities, the fracture toughness J integral of the X80 pipeline steel material can be increased from 40 kJ / m² to about 180 kJ / m² in the hydrogen environment doped with carbon monoxide or oxygen alone; while when carbon monoxide and oxygen are used in combination, the J integral can be increased to about 222 kJ / m². Therefore, the principle of using the gas coupling effect to enhance the inhibition of material hydrogen embrittlement in this implementation scheme is supported by the fracture toughness experiment.

[0147] Correspondingly, please refer to Figure 7 the block diagram of a device for enhancing the inhibition of pipeline hydrogen embrittlement by coupling carbon monoxide and oxygen provided by the embodiment of the present application, which is applied to the above system. The device includes:

[0148] An acquisition unit 101 is configured to acquire the hydrogen pipeline diameter and gas flow rate of the hydrogen pipeline to be regulated, and the elbow diameter for gas distribution regulation of the hydrogen pipeline to be regulated; wherein, the gas sources for gas distribution regulation include carbon monoxide and oxygen;

[0149] A monitoring unit 103 is configured to perform gas distribution regulation on the hydrogen pipeline to be regulated by using the gas source, and monitor the pre-regulation gas source concentration value and the post-regulation gas source concentration value that match the type of the gas source;

[0150] A regulation unit 105 is configured to determine a target regulation flow rate that matches the type of the gas source based on the hydrogen pipeline diameter, gas flow rate, preset target gas source concentration value, pre-regulation gas source concentration value, post-regulation gas source concentration value, and elbow diameter, so as to make the pressures in the hydrogen pipeline to be regulated and the elbow diameter consistent.

[0151] In some optional embodiments, the regulation unit 105 includes:

[0152] Determine the pre-regulation difference between the pre-regulation gas source concentration value and the target gas source concentration value;

[0153] Determine the post-regulation difference between the post-regulation gas source concentration value and the target gas source concentration value;

[0154] Determine the gas source concentration regulation range according to the comparison of the pre-regulation difference and the post-regulation difference;

[0155] Perform gas distribution regulation on the gas flow rate according to the hydrogen pipeline diameter, elbow diameter, and gas source concentration regulation range to obtain a target regulation flow rate that matches the type of the gas source.

[0156] In some optional embodiments, when the gas source includes carbon monoxide and oxygen, by volume percentage, the target gas source concentration value corresponding to carbon monoxide is less than or equal to 3%, and the target gas source concentration value corresponding to oxygen is less than or equal to 0.5%.

[0157] In some optional embodiments, when the target gas source concentration value corresponding to carbon monoxide is less than or equal to 0.1% and the target gas source concentration value corresponding to oxygen is less than or equal to 0.1% at the same time, the ratio between the target gas source concentration value corresponding to carbon monoxide and the target gas source concentration value corresponding to oxygen is 1:1.

[0158] The further function descriptions of the above-mentioned various modules and units are the same as those in the corresponding above embodiments, and will not be elaborated here.

[0159] In this embodiment, a device for enhancing the inhibition of pipeline hydrogen embrittlement by coupling carbon monoxide and oxygen is presented in the form of functional units. Here, the unit refers to an ASIC (Application Specific Integrated Circuit) circuit, a processor and a memory that execute one or more software or fixed programs, and / or other devices that can provide the above functions.

[0160] Please refer to Figure 8 , Figure 8 which is a schematic structural diagram of a computer device provided by an embodiment of the present application. As Figure 8 shown, the computer device includes: one or more processors 10, a memory 20, and interfaces for connecting various components, including high-speed interfaces and low-speed interfaces. Each component communicates with each other using different buses and can be installed on a common motherboard or installed in other ways as needed. The processor can process instructions executed within the computer device, including instructions stored in the memory or on the memory to display graphical information of the GUI on an external input / output device (such as a display device coupled to the interface). In some alternative embodiments, if necessary, multiple processors and / or multiple buses can be used together with multiple memories and multiple memories. Similarly, multiple computer devices can be connected, and each device provides some necessary operations (for example, as a server array, a set of blade servers, or a multi-processor system). Figure 8 Here, one processor 10 is taken as an example.

[0161] The processor 10 can be a central processing unit, a network processor, or a combination thereof. Among them, the processor 10 can further include a hardware chip. The above hardware chip can be an application specific integrated circuit, a programmable logic device, or a combination thereof. The above programmable logic device can be a complex programmable logic device, a field programmable gate array, a generic array logic, or any combination thereof.

[0162] Among them, the memory 20 stores instructions executable by at least one processor 10, so that the at least one processor 10 executes the method shown in the above embodiment.

[0163] The memory 20 may include a program storage area and a data storage area. The program storage area may store an operating system and application programs required for at least one function. The data storage area may store data created according to the use of the computer device and the like. In addition, the memory 20 may include high-speed random access memory and may also include non-transitory memory, such as at least one magnetic disk storage device, a flash memory device, or other non-transitory solid-state storage devices. In some alternative embodiments, the memory 20 may optionally include a memory remotely disposed relative to the processor 10, and these remote memories may be connected to the computer device through a network. Examples of the above network include but are not limited to the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0164] The memory 20 may include volatile memory, such as random access memory; the memory may also include non-volatile memory, such as flash memory, a hard disk, or a solid-state drive; the memory 20 may further include a combination of the above types of memory.

[0165] The computer device further includes a communication interface 30 for communicating the computer device with other devices or a communication network.

[0166] The embodiments of the present application further provide a computer-readable storage medium. The methods according to the embodiments of the present application may be implemented in hardware, firmware, or may be implemented as computer code recorded on a storage medium, or may be implemented as computer code originally stored in a remote storage medium or a non-transitory machine-readable storage medium and downloaded through a network and to be stored in a local storage medium, so that the methods described herein may be stored in such software processes on a storage medium using a general-purpose computer, a dedicated processor, or programmable or dedicated hardware. Among them, the storage medium may be a magnetic disk, an optical disk, a read-only memory, a random access memory, a flash memory, a hard disk, or a solid-state drive, etc.; further, the storage medium may further include a combination of the above types of memory. It can be understood that a computer, a processor, a microprocessor controller, or programmable hardware includes a storage component that can store or receive software or computer code, and when the software or computer code is accessed and executed by the computer, the processor, or the hardware, the methods shown in the above embodiments are implemented.

[0167] The systems, devices, modules, or units illustrated in the above embodiments may be specifically implemented by a computer chip or an entity, or by a product having a certain function. A typical implementation device is a computer. Specifically, the computer may be, for example, a personal computer, a laptop computer, a cellular phone, a camera phone, a smart phone, a personal digital assistant, a media player, a navigation device, an email device, a game console, a tablet computer, a wearable device, or any combination of these devices.

[0168] For convenience of description, when describing the above device, various units are described separately according to their functions. Of course, when implementing the present application, the functions of each unit can be implemented in one or more software and / or hardware.

[0169] Those skilled in the art should understand that the embodiments of the present application can be provided as a method, a system, or a device. Therefore, the present application can take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware aspects. Moreover, the present application can take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0170] The present application is described with reference to the flowcharts and / or block diagrams of methods, devices, and systems according to the embodiments of the present application. It should be understood that each flow and / or block in the flowchart and / or block diagram can be implemented by computer program instructions, and the combination of the flows and / or blocks in the flowchart and / or block diagram can also be implemented by computer program instructions. These computer program instructions can be provided to the processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing devices to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing devices generate a device for implementing the specified functions in Figure 1 one flow or multiple flows and / or blocks Figure 1 one block or multiple blocks.

[0171] These computer program instructions can also be stored in a computer-readable memory that can direct a computer or other programmable data processing device to work in a specific manner, so that the instructions stored in the computer-readable memory generate a manufactured article including an instruction device, and the instruction device implements the specified functions in Figure 1 one flow or multiple flows and / or blocks Figure 1 one block or multiple blocks.

[0172] These computer program instructions can also be loaded onto a computer or other programmable data processing device, so that a series of operation steps are executed on the computer or other programmable device to generate a computer-implemented process, and the instructions executed on the computer or other programmable device provide steps for implementing the specified functions in Figure 1 one flow or multiple flows and / or blocks Figure 1 one block or multiple blocks.

[0173] It should also be noted that the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, such that a process, method, commodity or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, commodity or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, commodity or device comprising said element.

[0174] Each embodiment in this specification is described in a progressive manner, and the same or similar parts among the embodiments can be referred to each other. The key point of each embodiment is to illustrate the differences from other embodiments. In particular, for the system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the description of the method embodiment.

[0175] The above are only the embodiments of the present application and are not intended to limit the present application. For those skilled in the art, various modifications and changes can be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included within the scope of the claims of the present application.

[0176] Although the embodiments of the present application are described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present application, and such modifications and variations fall within the scope defined by the appended claims.

Claims

1. A system for inhibiting pipeline hydrogen embrittlement by coupling carbon monoxide and oxygen, characterized in that: The system comprises: A monitoring module, the monitoring module comprising a monitoring unit and a user terminal; one end of the monitoring unit is connected to the hydrogen transmission pipeline to be regulated through a pipeline to monitor the gas source concentration value before regulation that matches the type of the gas source, and the gas source concentration value after regulation that matches the type of the gas source; the other end of the monitoring unit is electrically connected to the user terminal; the monitoring module is used to determine the gas source concentration regulation amplitude according to the gas source concentration value before regulation, the gas source concentration value after regulation and a preset target gas source concentration value; A gas distribution control module, the gas distribution control module includes at least two gas source units of different gas source types and a buffer unit corresponding to the gas source unit, and a coupling control unit; the gas outlet end of the gas source unit is connected to the gas inlet end of the buffer unit through a pipeline; the gas outlet end of the buffer unit is connected to the gas inlet end of the coupling control unit through a pipeline; the gas outlet end of the coupling control unit is connected to the hydrogen pipeline to be regulated through a bend pipe; the gas distribution control module is used to perform gas distribution control on the gas flow rate in the hydrogen pipeline to be regulated based on the gas source concentration control amplitude; wherein the gas source types include carbon monoxide and oxygen; A first electrically controlled pneumatic valve is connected to the pipeline between the gas source unit and the buffer unit, and is used to adjust a first flow rate of the gas source entering the buffer unit from the gas source unit; A second electrically-controlled pneumatic valve is connected to the pipeline between the buffer unit and the coupling regulation unit, and is used to regulate a second flow rate of the gas source entering the coupling regulation unit from the buffer unit; Wherein, the first flow rate is greater than a specified multiple of the second flow rate.

2. The system according to claim 1, characterized in that The monitoring unit includes a regulating electric-controlled pneumatic valve and a gas composition detector, wherein: One end of the regulating electric-controlled pneumatic valve is connected to the hydrogen pipeline to be regulated through a pipeline for obtaining a regulating gas source, and the other end of the regulating electric-controlled pneumatic valve is connected to the gas composition detector through a pipeline for monitoring a gas source concentration value before regulation that matches the type of the gas source, and a gas source concentration value after regulation that matches the type of the gas source; The other end of the gas composition detector is electrically connected to the user terminal.

3. A method for inhibiting pipeline hydrogen embrittlement by coupling carbon monoxide and oxygen, characterized in that: Applied to the system of claim 1, the method comprises: Obtaining the diameter of the hydrogen pipeline and the gas flow rate of the hydrogen pipeline to be regulated, and the diameter of the elbow for gas distribution regulation of the hydrogen pipeline to be regulated; wherein the gas source for gas distribution regulation includes carbon monoxide and oxygen; Using the gas source to perform gas distribution control on the hydrogen transmission pipeline to be regulated, and monitoring the gas source concentration value before and after the control that matches the type of the gas source; Based on the diameter of the hydrogen pipeline, the gas flow rate, the preset target gas source concentration value, the gas source concentration value before regulation, the gas source concentration value after regulation and the diameter of the elbow, a target regulation flow rate matching the type of the gas source is determined to make the pressure in the hydrogen pipeline to be regulated and the diameter of the elbow consistent.

4. The method according to claim 3, characterized in that The determining of a target regulating flow rate matching the type of the gas source comprises: Determine the difference before regulation between the gas source concentration value before regulation and the target gas source concentration value; Determine a post-regulation difference between the post-regulation gas source concentration value and the target gas source concentration value; Determining the gas source concentration control range according to the comparison between the difference before control and the difference after control; The gas flow rate is regulated according to the diameter of the hydrogen transmission pipeline, the diameter of the elbow and the gas source concentration control range to obtain the target regulated flow rate that matches the type of the gas source.

5. The method according to claim 3, characterized in that: Calculated by volume percentage, the target gas source concentration value corresponding to the carbon monoxide is less than or equal to 3%, and the target gas source concentration value corresponding to the oxygen is less than or equal to 0.5%.

6. The method according to claim 5, characterized in that When the target gas source concentration value corresponding to carbon monoxide is less than or equal to 0.1% and the target gas source concentration value corresponding to oxygen is less than or equal to 0.1%, the ratio between the target gas source concentration value corresponding to carbon monoxide and the target gas source concentration value corresponding to oxygen is 1:

1.

7. A device for inhibiting pipeline hydrogen embrittlement by coupling carbon monoxide and oxygen, characterized in that: Applied to the system of claim 1, the device comprises: An acquisition unit is used to acquire the diameter of the hydrogen pipeline to be regulated and the gas flow rate of the hydrogen pipeline to be regulated, and the diameter of the elbow for gas distribution regulation of the hydrogen pipeline to be regulated; wherein the gas source for gas distribution regulation includes carbon monoxide and oxygen; A monitoring unit, used to use the gas source to perform gas distribution control on the hydrogen transmission pipeline to be regulated, and monitor the gas source concentration value before and after the control that matches the type of the gas source; The control unit is used to determine the target control flow rate that matches the type of the gas source based on the diameter of the hydrogen pipeline, the gas flow rate, the preset target gas source concentration value, the gas source concentration value before control, the gas source concentration value after control and the diameter of the elbow, so as to make the pressure in the hydrogen pipeline to be regulated and the diameter of the elbow consistent.

8. A computer device, characterized in that: include: A memory and a processor, wherein the memory and the processor are communicatively connected to each other, the memory stores computer instructions, and the processor executes the method for enhancing the inhibition of pipeline hydrogen embrittlement by coupling carbon monoxide and oxygen as described in any one of claims 3 to 6 by executing the computer instructions.

9. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer instructions, and the computer instructions are used to enable a computer to execute the method for enhancing the inhibition of pipeline hydrogen embrittlement by coupling carbon monoxide and oxygen as described in any one of claims 3 to 6.

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