Safe emptying and flame arrester intelligent linkage system and emergency operation method

Abstract

The invention relates to the technical field of hydrogen production, in particular to a safe emptying and flame arrester intelligent linkage system and an emergency operation method. Comprising a hydrogen production device for producing hydrogen; the safety emptying pipeline is connected with the hydrogen production device and is used for emptying redundant hydrogen generated by the hydrogen production device; the flame arrester is arranged on the safe emptying pipeline and is used for preventing flame from spreading; the gas parameter monitoring module is mounted in the safe emptying pipeline and is used for monitoring pressure, temperature and concentration parameters of hydrogen in the safe emptying pipeline in real time; the central control module is respectively connected with the gas parameter monitoring module and the flame arrester, and the central control module receives the hydrogen pressure, temperature and concentration data transmitted by the gas parameter monitoring module and controls the on-off state of the flame arrester based on a preset threshold condition; according to the invention, hydrogen pressure, temperature and concentration parameters can be comprehensively monitored, and intelligent linkage control and accurate emergency operation are realized.

Description

Technical Field

[0001] The present invention relates to the technical field of hydrogen production, and in particular to a safe emptying and flame arrester intelligent linkage system and an emergency operation method. Background Art

[0002] In the field of hydrogen production technology, the safe discharge of hydrogen is crucial to ensuring production safety. However, existing technologies have significant defects, and innovative solutions are urgently needed to mitigate risks. In the industrial production process of hydrogen production, the safe discharge of hydrogen is a key link to ensure the stable operation of the production system and the safety of personnel. In existing hydrogen production systems, the control of safe discharge pipelines mostly relies on single parameter monitoring, such as only monitoring hydrogen pressure or concentration, which is difficult to fully reflect the safety status of the system. Due to the flammable and explosive characteristics of hydrogen, the changes in its pressure, temperature and concentration are interrelated and have a significant impact on safety. Single parameter monitoring can easily lead to misjudgment. For example, when the hydrogen concentration in the pipeline is within a safe range but the temperature rises abnormally, the existing system may not be able to respond in time, and there is a risk of flame spread and explosion. In addition, the traditional system lacks dynamic correlation analysis of various safety parameters, the control of flame arresters lacks a scientific basis, and emergency operations are difficult to implement accurately.

[0003] Therefore, there is an urgent need for a technical solution that can comprehensively monitor hydrogen pressure, temperature and concentration parameters and realize intelligent linkage control and precise emergency operation, so as to effectively improve the reliability and safety of safe emptying during the hydrogen production process. Summary of the Invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a safe emptying and flame arrester intelligent linkage system, comprising: A hydrogen production device for producing hydrogen; a safety exhaust pipe connected to the hydrogen production device and used to exhaust excess hydrogen generated by the hydrogen production device; a flame arrester, provided on the safety exhaust pipe, for preventing the spread of flames; A gas parameter monitoring module is installed in the safety exhaust pipe and is used to monitor the pressure, temperature and concentration parameters of hydrogen in the safety exhaust pipe in real time; a central control module, connected to the gas parameter monitoring module and the flame arrester, respectively, the central control module receiving the hydrogen pressure, temperature, and concentration data transmitted by the gas parameter monitoring module, and controlling the opening and closing state of the flame arrester based on preset threshold conditions; The emergency operation terminal is in communication with the central control module and is used to send emergency operation instructions to the central control module in an emergency to implement emergency intervention in operations related to the flame arrester and the safe emptying pipeline.

[0005] Preferably, the gas parameter monitoring module includes a pressure sensor, a temperature sensor and a concentration sensor. The pressure sensor is used to measure the pressure of the hydrogen in the safety exhaust pipe, the temperature sensor is used to measure the temperature of the hydrogen in the safety exhaust pipe, and the concentration sensor is used to measure the concentration of the hydrogen in the safety exhaust pipe.

[0006] Further preferably, the central control module includes a data processing unit and a control instruction generation unit, the data processing unit is used to analyze and process the hydrogen pressure, temperature and concentration data transmitted by the gas parameter monitoring module, and the control instruction generation unit generates an instruction for controlling the opening and closing state of the flame arrester based on the analysis results of the data processing unit and the preset threshold conditions.

[0007] Further preferably, the emergency operation terminal includes an operation panel and a communication module, the operation panel is provided with an operation button for inputting emergency operation instructions, and the communication module is used to transmit the emergency operation instructions input on the operation panel to the central control module.

[0008] Further preferably, the central control module determines whether to control the flame arrester to be closed based on the following formula: ; in, express The pressure measurement value for safely emptying the hydrogen in the pipeline at all times; Indicates the preset pressure threshold; express Temperature measurement to ensure safe evacuation of hydrogen from the pipeline at all times; Indicates standard temperature; The correction factor indicating the effect of temperature on the pressure threshold; express The concentration measurement of hydrogen in the pipeline is always safe to be emptied; Indicates standard concentration; The correction coefficient representing the effect of concentration on the pressure threshold. When the above formula is established, the central control module controls the flame arrester to close.

[0009] Further preferably, the central control module calculates the risk factor of hydrogen in the safe exhaust pipeline based on the following formula: : ; in, Indicates the normal pressure value for safely draining hydrogen from the pipeline; Indicates the maximum pressure value that the pipeline can withstand for safe emptying; Indicates the maximum temperature allowed for safe discharge of hydrogen from the pipeline; Indicates the maximum concentration of hydrogen allowed in the safe discharge pipeline; 、 、 are the risk coefficient weights corresponding to pressure, temperature, and concentration, respectively, and When the risk factor Reaching the preset risk factor threshold When the flame arrester is closed, the central control module controls the flame arrester to close and starts the emergency emptying procedure.

[0010] Further preferably, the central control module adjusts the emergency emptying flow based on the following formula : ; in, Indicates the emptying flow rate for safely emptying the pipeline under normal circumstances; Indicates the adjustment coefficient of the hazard factor to the emptying flow rate.

[0011] An emergency operation method based on the safe evacuation and flame arrester intelligent linkage system described in any one of the above items, comprising: S1: When the emergency operation terminal receives the emergency operation instruction, it transmits the emergency operation instruction to the central control module; S2: After receiving the emergency operation instruction, the central control module controls the flame arrester to perform corresponding opening and closing operations according to the instruction content, and / or adjusts the emptying flow of the safety emptying pipeline; S3: The central control module feeds back the system status information after the emergency operation to the emergency operation terminal for display.

[0012] Further preferably, the emergency operation instructions include an emergency flame arrester closure instruction, an emergency increase in emptying flow instruction, and an emergency decrease in emptying flow instruction. When an emergency flame arrester closure instruction is received, the central control module immediately controls the flame arrester to close; when an emergency increase in emptying flow instruction is received, the central control module increases the emptying flow of the safety emptying pipe according to a preset increase ratio; when an emergency decrease in emptying flow instruction is received, the central control module reduces the emptying flow of the safety emptying pipe according to a preset decrease ratio.

[0013] Further preferably, the central control module continuously receives the hydrogen pressure, temperature and concentration data transmitted by the gas parameter monitoring module, and re-judges whether it is necessary to further adjust the flame arrester status and the emptying flow of the safe emptying pipeline.

[0014] Technical effect: This invention achieves real-time, comprehensive monitoring of hydrogen pressure, temperature, and concentration by constructing an intelligent, interconnected system comprising a gas parameter monitoring module and a central control module. The central control module controls the flame arrester based on dynamic correlation analysis of multiple parameters, resolving the misjudgment issues associated with single-parameter monitoring in existing technologies and avoiding safety risks associated with unrecognized temperature or concentration anomalies. The emergency operation terminal enables precise emergency intervention, improves the reliability of safe evacuation, effectively prevents flame spread, and reduces explosion risks, providing a scientific and intelligent solution for hydrogen production safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is the block diagram of the safe evacuation and flame arrester intelligent linkage system for this application; Figure 2 This is a flow chart of the application and emergency operation method. DETAILED DESCRIPTION

[0016] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0017] See also Figure 1-Figure 2 Traditional solutions, for example, face the following technical challenges: Safe hydrogen discharge and flame isolation are crucial during hydrogen production. Traditional methods lack comprehensive monitoring and intelligent control of multiple parameters during hydrogen discharge, making them unable to promptly address safety hazards arising from changes in parameters such as pressure, temperature, and concentration. They also struggle to quickly and effectively intervene in emergencies.

[0018] Based on this, this embodiment provides a safe evacuation and flame arrester intelligent linkage system, including: A hydrogen production device for producing hydrogen; a safety exhaust pipe connected to the hydrogen production device and used to exhaust excess hydrogen generated by the hydrogen production device; a flame arrester, provided on the safety exhaust pipe, for preventing the spread of flames; A gas parameter monitoring module is installed in the safety exhaust pipe and is used to monitor the pressure, temperature and concentration parameters of hydrogen in the safety exhaust pipe in real time; a central control module, connected to the gas parameter monitoring module and the flame arrester, respectively, the central control module receiving the hydrogen pressure, temperature, and concentration data transmitted by the gas parameter monitoring module, and controlling the opening and closing state of the flame arrester based on preset threshold conditions; The emergency operation terminal is in communication with the central control module and is used to send emergency operation instructions to the central control module in an emergency to implement emergency intervention in operations related to the flame arrester and the safe emptying pipeline.

[0019] This embodiment aims to solve the problem of how to monitor key parameters in the hydrogen emission process in real time and intelligently control the flame arrester based on these parameters. At the same time, it provides effective emergency operation means to ensure the safety of hydrogen exhaust during the hydrogen production process and prevent flame spread and accidents.

[0020] It's worth mentioning that this embodiment builds a complete intelligent linkage system for safe venting and flame arresters, clearly applying the system to hydrogen production technology. It covers core components such as the hydrogen production unit, safe venting pipeline, flame arrester, gas parameter monitoring module, central control module, and emergency operation terminal. The hydrogen production unit is responsible for producing hydrogen, and excess hydrogen is discharged through the safe venting pipeline; the flame arrester is installed on the pipeline to prevent the spread of flames; the gas parameter monitoring module monitors the pressure, temperature, and concentration of hydrogen in the pipeline in real time; the central control module receives monitoring data and controls the opening and closing of the flame arrester based on preset threshold conditions; and the emergency operation terminal implements emergency intervention in the system in an emergency. These components work together to form an intelligent safety protection system.

[0021] The technical effects achieved by the above embodiments include: through this system, all-round monitoring and intelligent control of the hydrogen emission process are achieved. The gas parameter monitoring module collects data in real time, enabling the central control module to accurately judge the system status, timely control the opening and closing of the flame arrester, effectively prevent the spread of flames, and reduce the risk of fire and explosion. The setting of the emergency operation terminal ensures that human intervention can be carried out in an emergency, improves the system's ability to respond to emergencies, and ensures the safety of personnel and equipment. The construction of the entire system has greatly improved the reliability and safety of the safe emptying and flame arrester linkage during the hydrogen production process, and reduced the probability of safety accidents.

[0022] Traditional technical solutions present the following technical issues: During the hydrogen evacuation process, pressure, temperature, and concentration are key parameters affecting safety. Without accurate information on these parameters, the central control module struggles to make correct decisions, and flame arrester control may be delayed or misjudged, failing to effectively ensure system safety. To address this, the gas parameter monitoring module includes a pressure sensor, a temperature sensor, and a concentration sensor. The pressure sensor measures the pressure of the hydrogen within the safety evacuation pipeline, the temperature sensor measures the temperature of the hydrogen within the safety evacuation pipeline, and the concentration sensor measures the concentration of the hydrogen within the safety evacuation pipeline.

[0023] This embodiment solves the problem of how to accurately measure key parameters in the hydrogen emission process and provide reliable data support for subsequent intelligent control, ensuring that the system can respond promptly according to actual conditions and avoiding safety risks caused by inaccurate parameter monitoring.

[0024] It's worth noting that the present invention further refines the gas parameter monitoring module described in the aforementioned embodiment, specifying that it consists of a pressure sensor, a temperature sensor, and a concentration sensor. The pressure sensor precisely measures the pressure of hydrogen within the safe evacuation pipeline, the temperature sensor monitors the hydrogen temperature in real time, and the concentration sensor accurately measures the hydrogen concentration. These sensors, each performing their respective functions, convert the collected physical quantities into electrical or other transmittable signals, providing accurate monitoring data to the central control module and forming the foundation for intelligent system control.

[0025] The technical effects achieved by the above-described embodiments include: utilizing a combination of pressure sensors, temperature sensors, and concentration sensors to achieve high-precision measurement of key hydrogen emission parameters. Accurate parameter measurement enables the central control module to more precisely determine system status and promptly and accurately control the opening and closing of the flame arrester based on preset threshold conditions, thereby improving the system's ability to identify and respond to potential safety hazards. For example, if the pressure sensor detects an abnormally high pressure, the central control module can quickly control the flame arrester to close, preventing accidents caused by pipeline rupture or hydrogen leakage, thereby enhancing the safety and stability of the system.

[0026] Traditional technical solutions present the following technical issues: Simply acquiring parameter data during the hydrogen emission process is insufficient; this data must also be effectively processed and analyzed to make reasonable control decisions. Traditional control systems may be unable to comprehensively analyze multiple parameters, resulting in untimely or unreasonable flame arrester control and an inability to fully guarantee system safety. To address this, the central control module includes a data processing unit and a control instruction generation unit. The data processing unit is configured to analyze and process the hydrogen pressure, temperature, and concentration data transmitted by the gas parameter monitoring module. The control instruction generation unit generates instructions for controlling the opening and closing states of the flame arrester based on the analysis results of the data processing unit and preset threshold conditions.

[0027] This embodiment solves the problem of how to scientifically process and analyze the collected hydrogen emission parameter data and accurately generate flame arrester control instructions based on the analysis results, ensuring that the flame arrester can perform correct actions at the appropriate time and improving the safety and reliability of the system.

[0028] It is worth mentioning that this embodiment analyzes the central control module of the above embodiment and points out that it includes a data processing unit and a control instruction generation unit. The data processing unit receives hydrogen pressure, temperature, and concentration data transmitted by the gas parameter monitoring module and performs analysis and processing, such as data filtering, calculations, and comparison with preset thresholds. The control instruction generation unit generates instructions for controlling the opening and closing status of the flame arrester based on the analysis results of the data processing unit and according to preset threshold conditions, thus realizing intelligent control of the flame arrester. It is the core decision-making part of the entire system to achieve intelligent linkage.

[0029] The technical effects achieved by the above-mentioned embodiments include: through the collaborative work of the data processing unit and the control instruction generation unit, efficient processing and accurate decision-making of hydrogen emission parameter data are achieved. The data processing unit analyzes and processes the data, eliminating interference factors and improving the accuracy and reliability of the data; the control instruction generation unit generates instructions based on the processed results, so that the flame arrester can respond in a timely manner according to the actual situation of hydrogen emissions. For example, when the data processing unit analyzes and finds that the hydrogen pressure, temperature and concentration exceed the threshold value at the same time, the control instruction generation unit quickly generates an instruction to close the flame arrester, effectively preventing the further development of the dangerous situation, enhancing the system's ability to cope with complex working conditions, and ensuring the safe operation of the hydrogen production process.

[0030] For example, traditional technical solutions have the following technical problems: various emergencies may occur during the hydrogen production process. Relying solely on the system's automatic control may not be able to meet all safety requirements, and human emergency intervention is required. However, traditional emergency operation methods may have problems such as untimely instruction transmission and inconvenient operation, resulting in an inability to effectively respond to emergencies. Based on this, the emergency operation terminal includes an operation panel and a communication module. The operation panel is provided with an operation button for inputting emergency operation instructions, and the communication module is used to transmit the emergency operation instructions input on the operation panel to the central control module.

[0031] It's worth mentioning that the emergency operation terminal in the aforementioned embodiment, described in detail, consists of an operation panel and a communication module. The operation panel is equipped with buttons specifically for entering emergency operation commands. Operators can use these buttons to input commands in emergency situations, such as emergency flame arrester shutdown and exhaust flow adjustment. The communication module is responsible for transmitting emergency operation commands entered on the operation panel to the central control module, enabling information exchange between the operator and the central control module. This ensures that emergency operation commands are transmitted promptly and accurately, allowing the system to adjust according to the operator's intent in emergency situations.

[0032] The technical effects achieved by the above-mentioned embodiments include: the design of the operation panel and communication module of the emergency operation terminal provides operators with a convenient and efficient emergency operation method. In an emergency, the operator can quickly input emergency operation instructions through the buttons on the operation panel, and the communication module ensures that the instructions are transmitted to the central control module in a timely and accurate manner, enabling the system to respond quickly. For example, in an emergency such as a fire, the operator presses the emergency flame arrester shutdown button. Upon receiving the instruction, the central control module immediately closes the flame arrester to prevent the spread of flames. At the same time, the exhaust flow rate can be adjusted as needed, effectively reducing the risk of accidents and improving the safety and controllability of the system in emergency situations.

[0033] For example, traditional technical solutions have the following technical problems: in the hydrogen exhaust phase of the hydrogen production process, the flame arrester is controlled to close based solely on pressure, temperature, or concentration parameters, which cannot fully reflect the safety status of the system and is prone to misjudgment or omission. For example, based solely on pressure, the flame arrester may not be closed in time when the temperature and concentration are abnormal, resulting in safety hazards. Based on this, the central control module determines whether to control the flame arrester to close based on the following formula: ; in, express The pressure measurement value for safely emptying the hydrogen in the pipeline at all times; Indicates the preset pressure threshold; express Temperature measurement to ensure safe evacuation of hydrogen from the pipeline at all times; Indicates standard temperature; The correction factor indicating the effect of temperature on the pressure threshold; express The concentration measurement of hydrogen in the pipeline is always safe to be emptied; Indicates standard concentration; The correction coefficient representing the effect of concentration on the pressure threshold. When the above formula is established, the central control module controls the flame arrester to close.

[0034] This formula, used by the central control module to determine whether to close the flame arrester, is one of the key decision-making formulas for achieving intelligent safety protection in the entire system. In the field of hydrogen production technology, hydrogen emission safety is crucial. A single pressure criterion cannot meet safety requirements under complex operating conditions. This formula provides a scientific basis for flame arrester closing decisions by comprehensively considering three key factors: pressure, temperature, and concentration.

[0035] :represent The pressure measurement value of hydrogen in the pipeline is always safely emptied. During the hydrogen production process, the production, transportation and discharge of hydrogen will cause the pressure in the pipeline to change constantly. It can reflect the current pressure status in real time and is the basic data for system judgment.

[0036] : Represents the preset pressure threshold, which is a pre-set safety pressure limit based on factors such as the material of the safe evacuation pipeline, its designed pressure capacity, and the hydrogen production process requirements. When the pressure in the pipeline exceeds this threshold, the system must take measures to ensure safety.

[0037] :refer to Temperature measurement ensures safe evacuation of hydrogen from pipelines at all times. Temperature changes can affect the physical and chemical properties of hydrogen. High temperatures can cause hydrogen to expand, increase pipeline pressure, and even trigger dangerous reactions, making temperature a crucial parameter to consider.

[0038] : It is the standard temperature. Usually, a standard reference temperature value commonly used in the industry or set according to actual working conditions is selected to normalize and compare the current temperature.

[0039] : It is the correction coefficient of the effect of temperature on the pressure threshold. This coefficient reflects the degree of influence of temperature change on the pressure safety threshold. The influence of temperature on pressure safety varies under different pipeline materials, hydrogen characteristics and environmental conditions. It can be obtained through experiments or theoretical calculations to accurately reflect the effect of temperature factors.

[0040] :represent The concentration of hydrogen in the pipeline is measured to ensure it is safely vented at all times. Hydrogen concentration is directly related to its flammability and explosiveness. Excessive concentration can greatly increase the risk of fire and explosion, so concentration is also a key indicator for determining system safety.

[0041] : Indicates standard concentration, which is also a concentration value used as a reference benchmark.

[0042] : is the correction coefficient of the influence of concentration on the pressure threshold, which is used to quantify the correction effect of concentration change on the pressure safety threshold. Similarly, its value needs to be determined according to actual conditions.

[0043] In the formula, This part uses temperature and concentration to preset pressure thresholds Correction is performed to obtain a dynamic pressure safety limit. When the value is greater than or equal to this dynamic safety limit, the central control module determines that the system is in a dangerous state, and then controls the flame arrester to close to prevent the flame from spreading and ensure system safety.

[0044] This embodiment solves the problem of how to comprehensively consider multiple parameters such as pressure, temperature and concentration during the hydrogen emission process to establish a scientific and reasonable flame arrester closing judgment model, so that the central control module can more accurately determine when to close the flame arrester and improve system safety.

[0045] It is worth mentioning that: the formula for the central control module to determine whether to control the flame arrester to close is given .in, for The pressure measurement value of the hydrogen in the pipeline is always safely emptied, is the preset pressure threshold, express Temperature measurement value for safe exhaust of hydrogen in the pipeline at all times, is the standard temperature, is the correction coefficient for the effect of temperature on the pressure threshold, for The concentration of hydrogen in the pipeline can be measured at any time. is the standard concentration, is the correction factor for the effect of concentration on the pressure threshold. This formula comprehensively considers the impact of pressure, temperature, and concentration on the flame arrester closing decision. When the pressure measurement meets the formula conditions, the central control module controls the flame arrester to close.

[0046] The technical effects achieved by the above-mentioned embodiments include: through this formula, a multi-parameter comprehensive judgment of the flame arrester closing decision is realized. Taking into account the correction of the pressure threshold by temperature and concentration, the safety status of the system under different working conditions can be more realistically reflected. For example, when the temperature rises or the concentration increases, the pressure threshold will be adjusted accordingly to avoid misjudgment or missed judgment due to a single pressure factor. When the actual pressure, temperature and concentration parameters meet the formula conditions, the central control module will close the flame arrester in time, effectively preventing the spread of flames and further development of dangerous situations, greatly improving the system's ability to cope with complex working conditions and enhancing the safety and reliability of hydrogen exhaust during the hydrogen production process.

[0047] For example, the traditional technical solution has the following technical problems: During the hydrogen production process, the safety of hydrogen emissions is affected by many factors and is difficult to accurately evaluate through a single parameter. The traditional method lacks a comprehensive quantitative evaluation of multiple parameters and cannot fully and timely understand the degree of danger of the system, which may lead to the inability to take effective countermeasures in time when a dangerous situation occurs. Based on this, the central control module calculates the risk coefficient of hydrogen in the safe exhaust pipeline based on the following formula : ; in, Indicates the normal pressure value for safely draining hydrogen from the pipeline; Indicates the maximum pressure value that the pipeline can withstand for safe emptying; Indicates the maximum temperature allowed for safe discharge of hydrogen from the pipeline; Indicates the maximum concentration of hydrogen allowed in the safe discharge pipeline; 、 、 are the risk coefficient weights corresponding to pressure, temperature, and concentration, respectively, and When the risk factor Reaching the preset risk factor threshold When the flame arrester is closed, the central control module controls the flame arrester to close and starts the emergency emptying procedure.

[0048] This formula is used by the central control module to calculate the risk factor for safely evacuating hydrogen from the pipeline. By comprehensively quantifying the three parameters of pressure, temperature and concentration, the safety status of the system is converted into a measurable numerical indicator, so as to more comprehensively and accurately assess the degree of danger of the system and provide a basis for subsequent emergency decision-making.

[0049] 、 、 :Respectively The pressure, temperature and concentration measurement values ​​of hydrogen at all times reflect the current operating parameter status of the system in real time.

[0050] : Indicates the normal pressure value for safely draining hydrogen from the pipeline, and is the pressure reference standard for the system when it is in a stable and safe operating state.

[0051] : Represents the maximum pressure value that a safe drain pipeline can withstand, which is determined by the material, structure and design standards of the pipeline and is the absolute safety upper limit of pressure.

[0052] :This part of the calculation is to convert the current pressure With normal pressure The difference, relative to the maximum pressure of the pipeline With normal pressure The ratio of the difference is used to measure the degree to which the current pressure deviates from the normal state, and the result is between 0 and 1.

[0053] : Standard temperature, used as a reference for comparing the current temperature. : Indicates the maximum temperature allowed for safe discharge of hydrogen in the pipeline, which is the safety upper limit of the temperature.

[0054] :The calculation method is similar to pressure, the current temperature With standard temperature The difference, relative to the maximum allowable temperature With standard temperature The ratio of the difference is used to quantify how dangerous the current temperature is.

[0055] : It is the standard concentration, which serves as the concentration reference benchmark. : Represents the maximum concentration of hydrogen allowed in the safe exhaust pipeline, which is the safety upper limit of the concentration.

[0056] :The current concentration is also With standard concentration The difference, relative to the maximum allowable concentration With standard concentration The ratio of the difference is a measure of how dangerous the current concentration is.

[0057] 、 、 : are the risk coefficient weights corresponding to pressure, temperature, and concentration, respectively, and These weight coefficients are determined based on the characteristics of the hydrogen production process, equipment characteristics, and actual operating experience, and are used to reflect the relative importance of different parameters in affecting the degree of system hazard. For example, in some temperature-sensitive hydrogen production processes, The weight may be relatively large.

[0058] The formula obtains a comprehensive risk coefficient by weighted summation of the risk levels of the three parameters: pressure, temperature, and concentration. .when Reaching the preset risk factor threshold When the central control module determines that the system danger level is too high, it controls the flame arrester to close and starts the emergency emptying program to eliminate the danger in time and ensure system safety.

[0059] This embodiment solves the problem of how to comprehensively consider multiple parameters such as pressure, temperature and concentration during hydrogen emission to establish a scientific risk factor assessment model so that the central control module can accurately judge the risk level of the system and promptly initiate corresponding safety protection measures.

[0060] It is worth mentioning that: this embodiment proposes that the central control module calculates the risk factor of hydrogen in the safe emptying pipeline Formula .in, 、 、 They are The pressure, temperature and concentration of hydrogen at all times, It is the normal pressure value for safely draining hydrogen from the pipeline. is the maximum pressure the pipeline can withstand, is the standard temperature, is the maximum temperature allowed for hydrogen. is the standard concentration, is the maximum concentration allowed for hydrogen. 、 、 are the risk coefficient weights corresponding to pressure, temperature and concentration respectively. When the risk factor Reaching the preset risk factor threshold When the flame arrester is closed, the central control module controls the flame arrester to close and initiates the emergency evacuation procedure. This formula calculates the system's danger level through comprehensive quantitative calculation of pressure, temperature, and concentration.

[0061] The technical effects achieved by the above-mentioned embodiments include: the formula provides a comprehensive and scientific hazard factor assessment method for the central control module. By normalizing and weighting the pressure, temperature, and concentration, parameters of different dimensions are converted into a unified hazard factor index, which intuitively reflects the degree of danger of the system. Based on the comparison of the hazard factor with the preset threshold, the central control module can make timely and accurate decisions such as closing the flame arrester and initiating the emergency emptying procedure. For example, when the hazard factor approaches or reaches the threshold, the system takes measures in advance to avoid the deterioration of the dangerous situation, effectively ensuring the safe operation of the hydrogen emptying system during the hydrogen production process and reducing the possibility of accidents.

[0062] For example, the traditional technical solution has the following technical problems: in the hydrogen emptying link of the hydrogen production process, the traditional emptying flow control method is often fixed and cannot be flexibly adjusted according to the actual dangerous conditions of the system. When the system is in different levels of danger, the fixed emptying flow may not be able to effectively eliminate the danger, or cause unnecessary waste of hydrogen when the danger level is low. Based on this, the central control module adjusts the emergency emptying flow based on the following formula : ; in, Indicates the emptying flow rate for safely emptying the pipeline under normal circumstances; Indicates the adjustment coefficient of the hazard factor to the emptying flow rate.

[0063] This formula is used by the central control module to calculate the system risk factor. Adjust the emergency drain flow , aims to achieve dynamic intelligent control of the emptying flow, so that the system can reasonably adjust the hydrogen emission rate according to the actual degree of danger, which not only ensures safety but also avoids waste of resources. It is an important decision-making basis in the emergency response link. : Represents the emergency exhaust flow, that is, the hydrogen emission flow of the system under emergency conditions. It is the calculation result of the formula and also the target parameter of the system control.

[0064] : Represents the emptying flow rate of the pipeline under normal circumstances and is the standard for routine discharge flow when the system is in a stable and safe operating state.

[0065] : is the risk factor for safely draining hydrogen from the pipeline calculated by formula 2, reflecting the current risk level of the system.

[0066] : It is the adjustment coefficient of the risk factor to the emptying flow rate. This coefficient reflects the impact of the change in the risk factor on the adjustment of the emptying flow rate. The value of needs to be determined based on factors such as the performance of the hydrogen production equipment, pipeline transportation capacity, and safety standards. For example, in a scenario where the risk factor has a greater impact on the emptying flow rate, A larger value will be taken so that the emptying flow can be adjusted more sensitively as the risk factor changes.

[0067] In the formula, It is an adjustment factor based on the normal emptying flow. When it is 0, the system is in a completely safe state. , the emptying flow rate remains at a normal level; as the risk factor Increase, the adjustment factor increases, the emergency emptying flow also increased, and the rate of increase was In this way, the system can dynamically adjust the exhaust flow rate according to the actual risk level, avoiding excessive hydrogen discharge and waste when the risk level is low, and quickly discharge dangerous hydrogen when the risk level is high, reducing the risk level of the system and ensuring the safe and stable operation of the hydrogen production process.

[0068] This embodiment solves the problem of how to establish a scientific and reasonable emergency emptying flow adjustment model according to the danger level of the system, and realize dynamic and intelligent control of the emptying flow to improve system safety and resource utilization efficiency.

[0069] It is worth mentioning that: this embodiment provides the central control module to adjust the emergency emptying flow Formula .in, It is the emptying flow rate for safely emptying the pipeline under normal circumstances. is the adjustment coefficient of the risk factor to the emptying flow rate, The hazard factor for safely evacuating hydrogen from the pipeline is calculated using the formula in claim 6. This formula dynamically adjusts the emergency evacuation flow rate based on the system's hazard factor, enabling intelligent control of the evacuation flow rate and enabling the system to reasonably adjust the hydrogen discharge rate under different hazard levels.

[0070] The technical effects achieved by the above embodiments include: through this formula, intelligent dynamic adjustment of the emergency evacuation flow rate is achieved. When the system risk factor is low, the emergency evacuation flow rate is slightly increased on the basis of the normal flow rate, which can both ensure safety and avoid excessive hydrogen emissions; when the risk factor is high, the emergency evacuation flow rate is greatly increased, quickly evacuating dangerous hydrogen and reducing the risk level of the system. This method of adjusting the evacuation flow rate in real time according to the risk factor effectively improves the system's ability to cope with different dangerous conditions, ensures the safe and stable operation of the hydrogen production process, and rationally utilizes hydrogen resources and reduces unnecessary waste.

[0071] For example, the traditional technical solution has the following technical problems: when an emergency occurs during the hydrogen production process, a set of standardized and effective emergency operation procedures are needed to guide the system's emergency handling to ensure the safety of personnel and equipment. However, the traditional emergency operation method may have problems such as unclear operation procedures and poor information exchange, resulting in low emergency handling efficiency and inability to control the situation in a timely and effective manner. This claim solves the problem of how to design a complete and scientific emergency operation method so that the system can respond quickly according to the established process in an emergency, achieve effective control of the flame arrester and the emptying flow, and provide timely feedback of the system status information. Based on this, this embodiment provides an emergency operation method based on the safe emptying and flame arrester intelligent linkage system described in any of the above items, including: S1: When the emergency operation terminal receives the emergency operation instruction, it transmits the emergency operation instruction to the central control module; S2: After receiving the emergency operation instruction, the central control module controls the flame arrester to perform corresponding opening and closing operations according to the instruction content, and / or adjusts the emptying flow of the safety emptying pipeline; S3: The central control module feeds back the system status information after the emergency operation to the emergency operation terminal for display.

[0072] It's worth noting that this embodiment describes an emergency operation method based on the system described in any of the above embodiments. The specific steps are: when the emergency operation terminal receives an emergency operation command, it transmits the command to the central control module; after receiving the command, the central control module controls the flame arrester to perform corresponding opening and closing operations and / or adjusts the evacuation flow of the safety evacuation pipeline based on the command content; finally, the central control module feeds back the system status information after the emergency operation to the emergency operation terminal for display. This method clarifies the information exchange and action execution process between the various components during the emergency operation process, ensuring the orderly execution of the emergency operation.

[0073] The technical effects achieved by the above-described embodiments include: the emergency operation method provides clear guidance for system operation in emergency situations, ensuring the accuracy and efficiency of emergency operations. Through standardized command transmission, operation execution, and information feedback processes, operators can quickly and accurately perform emergency interventions on the system. The central control module promptly responds to commands and adjusts the system status, effectively reducing accident losses. At the same time, system status information after emergency operations is fed back to the operator, allowing them to understand the system status in real time, facilitating further decision-making and processing, and improving the safety and controllability of the system in emergency situations.

[0074] For example, the traditional technical solution has the following technical problems: during the emergency operation process, if the definition and execution method of the emergency operation instructions are not clear, it may cause confusion in the operation of the operator, the central control module to execute errors, and it will be unable to effectively respond to the emergency. Traditional emergency operations may lack detailed regulations on instructions, making it difficult to accurately convey and execute the operator's intentions in an emergency, affecting the emergency treatment effect. Based on this, the emergency operation instructions include an emergency flame arrester closure instruction, an emergency increase in emptying flow instruction, and an emergency decrease in emptying flow instruction. When the emergency flame arrester closure instruction is received, the central control module immediately controls the flame arrester to close; when the emergency increase in emptying flow instruction is received, the central control module increases the emptying flow of the safety emptying pipe according to a preset increase ratio; when the emergency decrease in emptying flow instruction is received, the central control module reduces the emptying flow of the safety emptying pipe according to a preset decrease ratio.

[0075] This embodiment solves the problem of how to clearly define emergency operation instructions and clarify the execution actions of the central control module corresponding to each instruction, so as to make emergency operations more standardized and accurate and improve emergency handling efficiency.

[0076] It's worth noting that this embodiment further refines the emergency operation instructions in the above-mentioned embodiments, explicitly including instructions for emergency flame arrester closure, emergency drain flow increase, and emergency drain flow decrease. When the central control module receives an emergency flame arrester closure instruction, it immediately controls the flame arrester to close. Upon receiving an emergency drain flow increase instruction, it increases the drain flow of the safety drain pipe by a preset increase ratio. Upon receiving an emergency drain flow decrease instruction, it decreases the drain flow of the safety drain pipe by a preset decrease ratio. This solution specifies the actions that the central control module must execute in response to different emergency operation instructions, enhancing the operability and accuracy of emergency operations.

[0077] The technical effects achieved by the above embodiments include: by clarifying various emergency operation instructions and their corresponding execution actions, emergency operations are made more standardized and normalized. Operators can accurately select the corresponding emergency operation instructions according to the actual emergency situation, and the central control module can also execute the instructions quickly and accurately, avoiding erroneous operations caused by unclear instructions. For example, in an emergency situation such as a fire, the operator quickly issues an emergency flame arrester closure instruction, and the central control module immediately responds to close the flame arrester, effectively preventing the spread of flames; according to the on-site situation, the hydrogen discharge rate can also be adjusted by increasing or decreasing the emptying flow instruction to further control the danger, thereby improving the system's emergency handling capabilities and safety in emergency situations.

[0078] Traditional solutions present a technical challenge: After emergency operations, if the system fails to promptly adjust emergency response measures based on changing circumstances, the danger may recur or overreact, impacting the system's normal operation and safety. Traditional emergency operations often lack follow-up monitoring and adjustments after execution, making them ineffective in responding to complex and changing circumstances. To address this, the central control module continuously receives hydrogen pressure, temperature, and concentration data from the gas parameter monitoring module and reassesses whether further adjustments are needed to the flame arrester status and the safe venting pipe's discharge flow rate.

[0079] This embodiment solves the problem of how to continuously monitor the system status after an emergency operation, and re-evaluate and adjust emergency response measures based on monitoring data and established models to ensure safe and stable operation of the system.

[0080] It's worth noting that this embodiment supplements the emergency operation method in the previous embodiment by stipulating that after executing the emergency operation, the central control module continuously receives hydrogen pressure, temperature, and concentration data transmitted by the gas parameter monitoring module and, based on the formulas in the previous embodiment, re-determines whether further adjustments need to be made to the flame arrester status and the evacuation flow rate of the safe evacuation pipeline. This solution emphasizes continuous monitoring and dynamic adjustments after emergency operations, enabling the system to promptly optimize emergency response measures based on actual conditions and ensure that the system remains safe at all times.

[0081] The technical effects achieved by the above-described embodiments include: through a continuous monitoring and dynamic adjustment mechanism after emergency operations, the system can track its own status in real time and flexibly adjust the flame arrester status and exhaust flow rate based on actual conditions. For example, after executing an emergency operation to increase the exhaust flow rate, if the monitoring data shows that the risk factor has decreased to a certain level, the central control module can re-evaluate and appropriately reduce the exhaust flow rate based on a formula to avoid excessive hydrogen emissions and waste. If the risk factor remains high, the emergency response measures can be maintained or further adjusted to ensure that the system remains safe and controllable, thereby improving the system's flexibility and controllability in responding to emergencies.

[0082] The above are merely preferred embodiments of the present invention and do not limit the present invention in any other form. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention shall still fall within the scope of protection of the technical solution of the present invention.

Claims

1. A safe emptying and flame arrester intelligent linkage system, characterized in that: include: A hydrogen production device for producing hydrogen; a safety exhaust pipe connected to the hydrogen production device and used to exhaust excess hydrogen generated by the hydrogen production device; a flame arrester, provided on the safety exhaust pipe, for preventing the spread of flames; A gas parameter monitoring module is installed in the safety exhaust pipe and is used to monitor the pressure, temperature and concentration parameters of hydrogen in the safety exhaust pipe in real time; a central control module, connected to the gas parameter monitoring module and the flame arrester, respectively, the central control module receiving the hydrogen pressure, temperature, and concentration data transmitted by the gas parameter monitoring module, and controlling the opening and closing state of the flame arrester based on preset threshold conditions; The emergency operation terminal is in communication with the central control module and is used to send emergency operation instructions to the central control module in an emergency to implement emergency intervention in operations related to the flame arrester and the safe emptying pipeline.

2. The safe evacuation and flame arrester intelligent linkage system according to claim 1 is characterized in that: The gas parameter monitoring module includes a pressure sensor, a temperature sensor and a concentration sensor. The pressure sensor is used to measure the pressure of hydrogen in the safety exhaust pipeline, the temperature sensor is used to measure the temperature of hydrogen in the safety exhaust pipeline, and the concentration sensor is used to measure the concentration of hydrogen in the safety exhaust pipeline.

3. The safe evacuation and flame arrester intelligent linkage system according to claim 1 is characterized in that: The central control module includes a data processing unit and a control instruction generation unit. The data processing unit is used to analyze and process the hydrogen pressure, temperature, and concentration data transmitted by the gas parameter monitoring module. The control instruction generation unit generates instructions for controlling the opening and closing states of the flame arrester based on the analysis results of the data processing unit and preset threshold conditions.

4. The safe evacuation and flame arrester intelligent linkage system according to claim 1 is characterized in that: The emergency operation terminal includes an operation panel and a communication module. The operation panel is provided with operation buttons for inputting emergency operation instructions. The communication module is used to transmit the emergency operation instructions input on the operation panel to the central control module.

5. The safe evacuation and flame arrester intelligent linkage system according to claim 1 is characterized in that: The central control module determines whether to control the flame arrester to close based on the following formula: ； in, express The pressure measurement value for safely emptying the hydrogen in the pipeline at all times; Indicates the preset pressure threshold; express Temperature measurement to ensure safe evacuation of hydrogen from the pipeline at all times; Indicates standard temperature; The correction factor indicating the effect of temperature on the pressure threshold; express The concentration measurement of hydrogen in the pipeline is always safe to be emptied; Indicates standard concentration; The correction coefficient representing the effect of concentration on the pressure threshold. When the above formula is established, the central control module controls the flame arrester to close.

6. The safe evacuation and flame arrester intelligent linkage system according to claim 5 is characterized in that: The central control module calculates the risk factor for safely evacuating hydrogen from the pipeline based on the following formula: : ； in, Indicates the normal pressure value for safely draining hydrogen from the pipeline; Indicates the maximum pressure value that the pipeline can withstand for safe emptying; Indicates the maximum temperature allowed for safe discharge of hydrogen from the pipeline; Indicates the maximum concentration of hydrogen allowed in the safe discharge pipeline; 、 、 are the risk coefficient weights corresponding to pressure, temperature, and concentration, respectively, and When the risk factor Reaching the preset risk factor threshold When the flame arrester is closed, the central control module controls the flame arrester to close and starts the emergency emptying procedure.

7. The safe evacuation and flame arrester intelligent linkage system according to claim 6 is characterized in that: The central control module adjusts the emergency emptying flow based on the following formula : ； in, Indicates the emptying flow rate for safely emptying the pipeline under normal circumstances; Indicates the adjustment coefficient of the hazard factor to the emptying flow rate.

8. An emergency operation method based on the safe evacuation and flame arrester intelligent linkage system according to any one of claim 17, characterized in that: include: S1: When the emergency operation terminal receives the emergency operation instruction, it transmits the emergency operation instruction to the central control module; S2: After receiving the emergency operation instruction, the central control module controls the flame arrester to perform corresponding opening and closing operations according to the instruction content, and / or adjusts the emptying flow of the safety emptying pipeline; S3: The central control module feeds back the system status information after the emergency operation to the emergency operation terminal for display.

9. The emergency operation method according to claim 8, characterized in that: The emergency operation instructions include an emergency flame arrester closure instruction, an emergency increase in emptying flow instruction, and an emergency decrease in emptying flow instruction. When an emergency flame arrester closure instruction is received, the central control module immediately controls the flame arrester to close; when an emergency increase in emptying flow instruction is received, the central control module increases the emptying flow of the safety emptying pipe according to a preset increase ratio; when an emergency decrease in emptying flow instruction is received, the central control module reduces the emptying flow of the safety emptying pipe according to a preset decrease ratio.

10. The emergency operation method according to claim 8, characterized in that: After executing the emergency operation, the central control module continuously receives the hydrogen pressure, temperature and concentration data transmitted by the gas parameter monitoring module, and re-judges whether it is necessary to further adjust the flame arrester status and the emptying flow of the safe emptying pipeline.

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