CN117802535B - A safety monitoring method, device, system and equipment for electrolytic hydrogen production device - Google Patents
A safety monitoring method, device, system and equipment for electrolytic hydrogen production device Download PDFInfo
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Abstract
本申请涉及一种电解制氢装置的安全监控方法、装置、系统及设备，该方法包括获取电解制氢装置启动前和运行过程中的第一工作数据和第二工作数据；根据第一工作数据进行判断，确定是否对电解制氢装置执行一级保护，获得电解制氢装置的设备状态；若设备状态为电解制氢装置处于运行状态，根据第二工作数据进行判断，确定是否对电解制氢装置执行二级保护和/或三级保护。该方法通过采集电解制氢装置启动前和运行过程中的第一工作数据和第二工作数据对电解制氢装置进行安全监控；当第一工作数据或第二工作数据出现异常时，对电解制氢装置进行一级保护的禁止启动、二级保护的故障关机或三级保护的紧急关机操作，保证电解制氢装置安全可靠运行。
The present application relates to a safety monitoring method, device, system and equipment for an electrolytic hydrogen production device. The method includes obtaining first working data and second working data before the electrolytic hydrogen production device is started and during operation; judging based on the first working data, determining whether to perform primary protection on the electrolytic hydrogen production device, and obtaining the equipment status of the electrolytic hydrogen production device; if the equipment status is that the electrolytic hydrogen production device is in operation, judging based on the second working data, determining whether to perform secondary protection and/or tertiary protection on the electrolytic hydrogen production device. The method performs safety monitoring on the electrolytic hydrogen production device by collecting the first working data and the second working data before the electrolytic hydrogen production device is started and during operation; when the first working data or the second working data is abnormal, the electrolytic hydrogen production device is prohibited from starting with the primary protection, shut down with the secondary protection due to a fault, or shut down with the tertiary protection due to an emergency, to ensure the safe and reliable operation of the electrolytic hydrogen production device.
Description
Technical Field
The application relates to the technical field of hydrogen production safety control, in particular to a safety monitoring method, device, system and equipment of an electrolytic hydrogen production device.
Background
Before the electrolytic hydrogen production device is started or in the running process, when the conditions of out-of-range circulating water temperature, out-of-range circulating water tank liquid level, too low circulating water flow, unqualified water quality, too low cooling water pressure, ultrahigh working pressure of the hydrogen production system, ultrahigh electrolytic voltage, ultrahigh electrolytic current, abnormal environmental hydrogen concentration, emergency stop signal triggering and the like occur, the electrolytic tank hydrogen production device can be in an abnormal state, and the control system needs to respond to the corresponding treatment flow rapidly, reliably and stably so as to ensure that the hydrogen production device runs more safely, stably and reliably to produce hydrogen.
Disclosure of Invention
The embodiment of the application provides a safety monitoring method, device, system and equipment of an electrolytic hydrogen production device, which are used for solving the technical problem that the control system of the existing electrolytic hydrogen production device has potential safety hazards, so that the control system cannot safely, stably and reliably operate.
In order to achieve the above object, the embodiment of the present application provides the following technical solutions:
in one aspect, a method for monitoring safety of an electrolytic hydrogen production device is provided, comprising the following steps:
Acquiring first working data and second working data before starting and in the running process of the electrolytic hydrogen production device;
judging according to the first working data, determining whether to execute primary protection on the electrolytic hydrogen production device or not, and obtaining the equipment state of the electrolytic hydrogen production device;
If the equipment state is that the electrolytic hydrogen production device is in an operating state, judging according to the second working data, and determining whether to execute secondary protection and/or tertiary protection on the electrolytic hydrogen production device;
The method comprises the steps of determining that the first-stage protection is executed on the electrolytic hydrogen production device, and if the circulating water temperature of the first working data is not in a threshold range, the liquid level of a circulating water tank is not in an operation range, the water quality conductivity is unqualified, the hydrogen production working pressure is too high, the cooling water pressure is too low and/or the environmental hydrogen concentration is abnormal, executing the first-stage protection on the electrolytic hydrogen production device, and prohibiting the electrolytic hydrogen production device from being started.
Preferably, determining that the second-stage protection is performed on the electrolytic hydrogen production device comprises performing the second-stage protection on the electrolytic hydrogen production device if the circulating water temperature of the second working data is not within a threshold range, the liquid level of the circulating water tank is not within an operation range, the water quality conductivity is not qualified, the hydrogen production working pressure is too high, the cooling water pressure is too low and/or the environmental hydrogen concentration is low, and controlling the electrolytic hydrogen production device to perform load reduction shutdown.
Preferably, if the water quality conductivity of the first working data is greater than 5uS/cm, the water quality conductivity is not qualified, and if the water quality conductivity of the second working data is greater than 1.5uS/cm within two minutes, the water quality conductivity is not qualified.
Preferably, if the circulating water temperature of the first working data and the second working data is greater than 65 ℃ or less than 5 ℃, the circulating water temperature is not in a threshold range, if the circulating water liquid level of the first working data and the second working data is greater than 90% or less than 40%, the circulating water tank liquid level is not in an operation range, if the hydrogen production working pressure of the first working data and the second working data is greater than 32bar, the hydrogen production working pressure is too high, if the cooling water pressure of the first working data and the second working data is less than 0.5bar, the cooling water pressure is too low, if the environmental hydrogen concentration of the first working data and the second working data is not less than 25% LEL, the environmental hydrogen concentration is low, if the environmental hydrogen concentration of the first working data and the second working data is not less than 50% LEL, the environmental hydrogen concentration is high, the environmental hydrogen concentration is abnormal, and the environmental hydrogen concentration includes the environmental hydrogen concentration is low and the environmental hydrogen concentration is high.
Preferably, determining that the third-stage protection is performed on the electrolytic hydrogen production device comprises performing the third-stage protection on the electrolytic hydrogen production device and controlling the electrolytic hydrogen production device to perform the load-off shutdown if the circulating water flow of the second working data is not within a threshold range, the electrolytic hydrogen production voltage is too high, the environmental hydrogen concentration is high, and/or an emergency shutdown signal is generated.
Preferably, the safety monitoring method of the electrolytic hydrogen production device comprises the steps of executing primary protection, secondary protection and tertiary protection according to the electrolytic hydrogen production device, sending out an alarm and storing the first working data or the second working data.
In still another aspect, a safety monitoring device of an electrolytic hydrogen production device is provided, including a data acquisition module, a first judgment protection module and a second judgment protection module;
The data acquisition module is used for acquiring first working data and second working data before starting and in the running process of the electrolytic hydrogen production device;
The first judgment protection module is used for judging according to the first working data, determining whether to execute primary protection on the electrolytic hydrogen production device or not, and obtaining the equipment state of the electrolytic hydrogen production device;
The second judgment protection module is used for judging whether to execute secondary protection and/or tertiary protection on the electrolytic hydrogen production device according to the equipment state which is the running state of the electrolytic hydrogen production device and the second working data;
The first judgment protection module is further used for executing first-stage protection on the electrolytic hydrogen production device according to the condition that the circulating water temperature of the first working data is not in a threshold range, the liquid level of the circulating water tank is not in an operation range, the water quality conductivity is unqualified, the hydrogen production working pressure is too high, the cooling water pressure is too low and/or the environmental hydrogen concentration is abnormal, and starting of the electrolytic hydrogen production device is forbidden.
Preferably, the second judgment protection module is further used for executing secondary protection on the electrolytic hydrogen production device and controlling the electrolytic hydrogen production device to execute load-reducing shutdown according to the condition that the circulating water temperature of the second working data is not in a threshold range, the liquid level of the circulating water tank is not in an operation range, the water quality conductivity is unqualified, the hydrogen production working pressure is too high, the cooling water pressure is too low and/or the environmental hydrogen concentration is low and abnormality is reported, and/or
And according to the circulating water flow of the second working data which is not in the threshold range, the electrolytic hydrogen production voltage is too high, the environmental hydrogen concentration is reported to be abnormal and/or an emergency stop signal, three-stage protection is carried out on the electrolytic hydrogen production device, and the electrolytic hydrogen production device is controlled to carry out load-off stop.
In still another aspect, a safety monitoring system of an electrolytic hydrogen production device is provided, which comprises an acquisition module and a safety monitoring module connected with the acquisition module, wherein the acquisition module is used for acquiring working data before starting and in the running process of the electrolytic hydrogen production device, and the safety monitoring module is used for performing primary protection, secondary protection and tertiary protection on the electrolytic hydrogen production device according to the working data by adopting the safety monitoring method of the electrolytic hydrogen production device.
In yet another aspect, a terminal device is provided that includes a processor and a memory;
The memory is used for storing program codes and transmitting the program codes to the processor;
The processor is used for executing the safety monitoring method of the electrolytic hydrogen production device according to the instructions in the program codes.
The safety monitoring method comprises the steps of obtaining first working data and second working data before and during starting and running of the electrolytic hydrogen production device, judging whether to perform primary protection on the electrolytic hydrogen production device according to the first working data to obtain the equipment state of the electrolytic hydrogen production device, judging whether to perform secondary protection and/or tertiary protection on the electrolytic hydrogen production device according to the second working data if the equipment state is the electrolytic hydrogen production device in the running state, and determining that the primary protection is performed on the electrolytic hydrogen production device if the circulating water temperature of the first working data is not in a threshold range, the liquid level of a circulating water tank is not in the running range, the water quality conductivity is unqualified, the hydrogen production working pressure is too high, the cooling water pressure is too low and/or the environmental hydrogen concentration is abnormal, wherein the step of determining that the primary protection is performed on the electrolytic hydrogen production device is prohibited. According to the technical scheme, the safety monitoring method of the electrolytic hydrogen production device has the advantages that the safety monitoring is carried out on the electrolytic hydrogen production device according to the collected first working data and the collected second working data by collecting data before and during the operation of the electrolytic hydrogen production device, when the first working data or the second working data are abnormal, the corresponding operation of prohibiting the first-stage protection, the second-stage protection and the third-stage protection is carried out on the electrolytic hydrogen production device, the safe and reliable operation of the electrolytic hydrogen production device is ensured, and the technical problems that the control system of the conventional electrolytic hydrogen production device has potential safety hazards and cannot safely, stably and reliably operate are solved.
Drawings
In order to more clearly illustrate the embodiments of the application or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the application, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.
FIG. 1 is a flow chart of the steps of a method for monitoring safety of an electrolytic hydrogen plant according to an embodiment of the present application;
FIG. 2 is a schematic diagram of a safety monitoring device for an electrolytic hydrogen production device according to an embodiment of the present application;
FIG. 3 is a schematic flow chart of a safety monitoring system of an electrolytic hydrogen plant according to an embodiment of the present application;
Fig. 4 is a schematic diagram of a terminal device according to an embodiment of the present application.
Detailed Description
In order to make the objects, features and advantages of the present application more comprehensible, the technical solutions in the embodiments of the present application are described in detail below with reference to the accompanying drawings, and it is apparent that the embodiments described below are only some embodiments of the present application, but not all embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
In the description of embodiments of the present application, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the embodiments of the present application, the meaning of "plurality" is two or more, unless explicitly defined otherwise.
In the embodiments of the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured" and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected or integrally formed, mechanically connected or electrically connected, directly connected or indirectly connected through an intermediate medium, or in communication between two elements or in interaction with each other. The specific meaning of the above terms in the embodiments of the present application will be understood by those of ordinary skill in the art according to specific circumstances.
The embodiment of the application provides a safety monitoring method, device, system and equipment of an electrolytic hydrogen production device, which solve the technical problem that the control system of the existing electrolytic hydrogen production device has potential safety hazards, so that the control system cannot safely, stably and reliably operate.
Embodiment one:
FIG. 1 is a flow chart of the steps of a method for monitoring safety of an electrolytic hydrogen plant according to an embodiment of the present application.
As shown in fig. 1, the embodiment of the application provides a safety monitoring method of an electrolytic hydrogen production device, which comprises the following steps:
S1, acquiring first working data and second working data before starting and in the running process of the electrolytic hydrogen production device.
In step S1, working data of the electrolytic hydrogen production device before and during starting and operation is obtained, wherein the first working data includes a circulating water temperature, a circulating water tank liquid level, a water quality conductivity, a hydrogen production working pressure, a cooling water pressure, an environmental hydrogen concentration, and the like, and the second working data includes a circulating water temperature, a circulating water tank liquid level, a water quality conductivity, a hydrogen production working pressure, a cooling water pressure, an environmental hydrogen concentration, an electrolytic hydrogen production voltage, an electrolytic current, a circulating water flow, an emergency stop signal, and the like. In this embodiment, the electrolytic hydrogen production device includes an electrolytic tank, a circulating water tank and a cooling device, circulating water is placed in the circulating water tank, water quality conductivity refers to water quality conductivity at a water inlet of the electrolytic tank, hydrogen production working pressure refers to pressure of hydrogen production in the electrolytic tank, cooling water pressure refers to pressure of the cooling device, electrolytic hydrogen production voltage refers to voltage in a hydrogen production process of the electrolytic tank, and emergency stop signals include signals sent by an emergency stop button of the electrolytic hydrogen production device and signals sent by an external emergency stop device triggered.
In the embodiment of the application, the cooling water pressure of the electrolytic hydrogen production device is too low, which indicates that a cold water system in the electrolytic hydrogen production device is not started or fails. In the hydrogen production process of the electrolytic hydrogen production device, the temperature of the circulating water gradually rises, and if no cold water is cooled, the temperature of the circulating water continuously rises, so that the temperature of the circulating water is ultrahigh, and the hydrogen production of the electrolytic hydrogen production device is stopped. The electrolytic current detection is to protect the electrolytic tank of the electrolytic hydrogen production device, and the electrolytic voltage is high due to the excessively high electrolytic current, so that the hydrogen production amount of the electrolytic hydrogen production device is not consistent with the set hydrogen production flow. The high electrolysis voltage indicates that the electrolytic tank of the electrolytic hydrogen production device has higher single-chamber voltage, and the ultrahigh single-chamber voltage easily causes oxidation phenomenon of a diffusion layer in the electrolytic tank, so that the hydrogen production efficiency of the electrolytic hydrogen production device is reduced, and the service life of the electrolytic tank is seriously influenced. The environment hydrogen concentration of the electrolytic hydrogen production device is abnormal, which indicates that the hydrogen leakage possibly exists, the serious safety risk exists, and the hydrogen production is forbidden.
S2, judging according to the first working data, determining whether to execute primary protection on the electrolytic hydrogen production device, and obtaining the equipment state of the electrolytic hydrogen production device. The method comprises the steps of determining that the first-stage protection is performed on the electrolytic hydrogen production device if the circulating water temperature of first working data is not in a threshold range, the liquid level of a circulating water tank is not in an operation range, the water quality conductivity is unqualified, the hydrogen production working pressure is too high, the cooling water pressure is too low and/or the environmental hydrogen concentration is abnormal, performing the first-stage protection on the electrolytic hydrogen production device, and prohibiting the electrolytic hydrogen production device from being started.
In step S2, the first working data of the electrolytic hydrogen production device before starting is collected according to step S1 to determine whether to start the first-stage protection. If the collected first working data does not meet the first-stage protection of starting, the electrolytic hydrogen production device can be started normally to work, and the equipment state of the electrolytic hydrogen production device is in an operating state. In this embodiment, the first-level protection is determined based on the first working data collected before the electrolytic hydrogen production device is started, and when it is determined that the first-level protection is performed on the electrolytic hydrogen production device, it is indicated that the electrolytic hydrogen production device is in an abnormal state, and the electrolytic hydrogen production device is prohibited from being started. If the electrolytic hydrogen production device is not provided with the primary protection, the electrolytic hydrogen production device is directly started, secondary and tertiary protection stopping can be triggered after the starting under the condition that the operation condition is not met, the electrolytic hydrogen production device is frequently started and stopped, the service lives of an electrolytic tank and an electrolytic water circulating water pump of the electrolytic hydrogen production device can be reduced, and the electrolytic tank and other internal parts of the electrolytic hydrogen production device can be damaged when serious. Further, when the circulating water temperature is too low, the pipeline may have icing phenomenon, and starting the electrolytic hydrogen production device may cause risks such as damage to the electrolytic water circulating pump, pipeline damage, dry burning of the electrolytic tank and the like. When the circulating water temperature is too high (exceeds the design temperature), membrane electrodes inside the electrolytic cell may be expanded, sealing layers and the like may be deformed, thereby reducing the life of the electrolytic cell or damaging the electrolytic cell. Poor conductivity of water quality can reduce the life of the electrolytic cell because water of low purity can cause scale accumulation in the electrolytic cell, affect conductivity and thus the life of the electrolytic cell, and in severe cases, other impurities can damage the electrolytic cell. The hydrogen production working pressure is too high to exceed the design pressure. Too low a cooling water pressure indicates that the cold water system is not started or fails, and does not reach the operating conditions, failing to meet the circulating water cooling requirements. When the concentration of the environmental hydrogen is abnormal, serious risks exist, and hydrogen production is forbidden. The safety monitoring method of the electrolytic hydrogen production device firstly carries out the first-stage protection judgment, which is a precondition for the operation of the electrolytic hydrogen production device to produce hydrogen and is also an important protection step of the electrolytic hydrogen production device. After the primary protection is arranged, the control system of the electrolytic hydrogen production device can effectively protect parts such as an electrolytic tank, a water pump, a pipeline and the like in the electrolytic hydrogen production device, prolong the service life and improve the safety performance.
S3, if the equipment state is that the electrolytic hydrogen production device is in an operating state, judging according to the second working data, and determining whether to execute secondary protection and/or tertiary protection on the electrolytic hydrogen production device.
In step S3, the electrolytic hydrogen production device is judged according to the second working data collected during the operation of the electrolytic hydrogen production device under the condition that the electrolytic hydrogen production device is in the operation state based on the device state, and whether the electrolytic hydrogen production device performs the secondary protection and/or the tertiary protection during the hydrogen production process is determined.
According to the safety monitoring method of the electrolytic hydrogen production device, the data of the electrolytic hydrogen production device before starting and in the running process are collected, the electrolytic hydrogen production device is monitored safely according to the collected first working data and second working data, and when the first working data or the second working data are abnormal, the electrolytic hydrogen production device is correspondingly prohibited from being started in a first-stage protection mode, the electrolytic hydrogen production device is shut down in a second-stage protection mode and the electrolytic hydrogen production device is shut down in a third-stage protection mode in an emergency mode, so that the electrolytic hydrogen production device is guaranteed to run safely and reliably.
The safety monitoring method of the electrolytic hydrogen production device controls the electrolytic hydrogen production device to operate, simplifies the control flow, and realizes integrated safety monitoring by PLC main control, multiple safety monitoring inputs and multiple protection flow outputs. The purpose of higher integration, safer, more stable and more reliable hydrogen production of the electrolytic hydrogen production device can also be achieved. The electrolytic hydrogen production device can respond to the corresponding fault exception processing flow rapidly, reliably and stably, so as to realize the comprehensive protection of the electrolytic hydrogen production device. The operation of the electrolytic hydrogen production device is controlled by the safety monitoring method of the electrolytic hydrogen production device, and the method is also an important unattended component for realizing the electrolytic hydrogen production device.
The application provides a safety monitoring method of an electrolytic hydrogen production device, which comprises the steps of obtaining first working data and second working data before and during starting and running of the electrolytic hydrogen production device, judging whether to execute first-level protection on the electrolytic hydrogen production device according to the first working data to obtain the equipment state of the electrolytic hydrogen production device, judging whether to execute second-level protection and/or third-level protection on the electrolytic hydrogen production device according to the second working data if the equipment state is in the running state of the electrolytic hydrogen production device, wherein the content of determining to execute the first-level protection on the electrolytic hydrogen production device comprises that if the circulating water temperature of the first working data is not in a threshold range, the liquid level of a circulating water tank is not in the running range, the water conductivity is unqualified, the hydrogen production working pressure is too high, the cooling water pressure is too low and/or the environmental hydrogen concentration is abnormal, executing the first-level protection on the electrolytic hydrogen production device, and prohibiting the starting of the electrolytic hydrogen production device. The safety monitoring method of the electrolytic hydrogen production device comprises the steps of collecting data before and during starting and running of the electrolytic hydrogen production device, and carrying out safety monitoring on the electrolytic hydrogen production device according to the collected first working data and second working data, when the first working data or the second working data are abnormal, carrying out corresponding forbidden starting, fault shutdown and three-level protection emergency shutdown operation on the electrolytic hydrogen production device, so as to ensure safe and reliable running of the electrolytic hydrogen production device, and solve the technical problems that the control system of the existing electrolytic hydrogen production device has potential safety hazards and cannot be operated safely, stably and reliably.
In one embodiment of the application, determining that the second-stage protection is performed on the electrolytic hydrogen production device comprises performing the second-stage protection on the electrolytic hydrogen production device and controlling the electrolytic hydrogen production device to perform load-reducing shutdown if the circulating water temperature of the second working data is not within a threshold value range, the liquid level of the circulating water tank is not within an operating range, the water quality conductivity is unacceptable, the hydrogen production working pressure is too high, the cooling water pressure is too low and/or the environmental hydrogen concentration is low.
It should be noted that, determining that the electrolytic hydrogen production device performs the secondary protection is based on the second working data collected during the hydrogen production process of the electrolytic hydrogen production device. Specifically, as long as the circulating water temperature is not in the threshold range, the liquid level of the circulating water tank is not in the operation range, the water quality conductivity is unqualified, the hydrogen production working pressure is too high, the cooling water pressure is too low, the environmental hydrogen concentration is low, and the like, any information appears, which indicates that the electrolytic hydrogen production device cannot be continuously operated in the current operation state and needs to automatically carry out load reduction and stop to enter secondary protection.
In the embodiment of the application, if the water quality conductivity of the first working data is greater than 5uS/cm, the water quality conductivity is not qualified, and if the water quality conductivity of the second working data is greater than 1.5uS/cm within two minutes, the water quality conductivity is not qualified. The method comprises the steps of determining the temperature of circulating water of first working data and second working data, determining the temperature of the circulating water to be higher than 65 ℃ or lower than 5 ℃, determining the temperature of the circulating water to be not in a threshold range, determining the liquid level of a circulating water tank to be not in an operation range if the liquid level of the circulating water of the first working data and the second working data is higher than 90% or lower than 40%, determining the pressure of hydrogen production working pressure to be too high if the pressure of hydrogen production working of the first working data and the second working data is higher than 32bar, determining the pressure of cooling water to be too low if the pressure of cooling water of the first working data and the second working data is lower than 0.5bar, determining the concentration of environmental hydrogen to be low if the concentration of the environmental hydrogen of the first working data and the second working data is not lower than 25% LEL, determining the concentration of environmental hydrogen to be high if the concentration of the environmental hydrogen of the first working data and the second working data is not lower than 50% LEL, and determining the concentration of the environmental hydrogen to be high.
It is to be noted that, according to the comparison between the collected working data and the corresponding threshold value, it is determined whether the circulating water temperature of the working data is within the threshold value range, whether the circulating water tank liquid level is within the operation range, whether the water quality conductivity is unqualified, whether the hydrogen production working pressure is too high, whether the cooling water pressure is too low, whether the environmental hydrogen concentration is abnormal, etc.
In one embodiment of the application, determining that the third-level protection is performed on the electrolytic hydrogen production device comprises performing the third-level protection on the electrolytic hydrogen production device and controlling the electrolytic hydrogen production device to perform the off-load shutdown if the circulating water flow of the second working data is not within a threshold range, the electrolytic hydrogen production voltage is too high, the environmental hydrogen concentration is high, and/or an emergency shutdown signal is generated.
It should be noted that, determining that the electrolytic hydrogen production device performs three-stage protection is based on the second working data collected during the hydrogen production process of the electrolytic hydrogen production device. Specifically, as long as the circulating water flow is not in the threshold range, the electrolytic hydrogen production voltage is too high, the environmental hydrogen concentration is reported to be abnormal, an emergency stop signal and other information appear, the electrolytic hydrogen production device is in an emergency state in the current running state, and the electrolytic hydrogen production device needs to automatically adopt a load-off stop to enter three-stage protection. In the embodiment, if the circulating water flow rate of the second working data is smaller than 1.2m3/h or larger than 3m3/h, the circulating water flow rate is not in the threshold range, if the electrolytic hydrogen production voltage of the second working data is larger than 60V, the electrolytic hydrogen production voltage is too high, and the emergency stop signal is a signal sent by triggering an emergency stop button of the electrolytic hydrogen production device and a signal sent by triggering an external emergency stop device.
In one embodiment of the application, the safety monitoring method of the electrolytic hydrogen production device comprises the steps of executing primary protection, secondary protection and tertiary protection according to the electrolytic hydrogen production device, sending out an alarm and storing first working data or second working data.
The safety monitoring method of the electrolytic hydrogen production device automatically executes the forbidden start of the first-stage protection, the fault shutdown of the second-stage protection or the emergency shutdown of the third-stage protection according to the abnormal condition of the real-time monitoring working data, sends out an alarm, displays alarm information on an upper computer interface and stores the monitoring working data. The alarm prompt mode comprises an audio prompt, a light prompt, an interface prompt and a user terminal prompt bound with a user, and the alarm can be released by a manual confirmation party.
Embodiment two:
FIG. 2 is a schematic diagram of a safety monitoring device for an electrolytic hydrogen production device according to an embodiment of the present application.
As shown in fig. 2, an embodiment of the present application provides a safety monitoring device of an electrolytic hydrogen production device, including a data acquisition module 10, a first judgment protection module 20 and a second judgment protection module 30;
The data acquisition module 10 is used for acquiring first working data and second working data before starting and in the running process of the electrolytic hydrogen production device;
a first judgment protection module 20, configured to judge according to the first working data, determine whether to perform first-stage protection on the electrolytic hydrogen production device, and obtain a device state of the electrolytic hydrogen production device;
a second judgment protection module 30, configured to determine whether to perform secondary protection and/or tertiary protection on the electrolytic hydrogen production device according to the equipment status being that the electrolytic hydrogen production device is in an operating state and according to second working data;
The first judgment protection module 20 is further configured to perform a first-stage protection on the electrolytic hydrogen production device according to the first working data, that is, the circulating water temperature is not within the threshold range, that the circulating water tank liquid level is not within the operation range, that the water quality conductivity is not acceptable, that the hydrogen production working pressure is too high, that the cooling water pressure is too low, and/or that the environmental hydrogen concentration is abnormal, and prohibit starting the electrolytic hydrogen production device.
In the embodiment of the present application, the second judgment protection module 30 is further configured to perform a second-stage protection on the electrolytic hydrogen production device according to the second working data, wherein the temperature of the circulating water is not within the threshold range, the liquid level of the circulating water tank is not within the operation range, the water quality conductivity is not qualified, the hydrogen production working pressure is too high, the cooling water pressure is too low, and/or the environmental hydrogen concentration is too low, and control the electrolytic hydrogen production device to perform load-reducing shutdown, and/or
And according to the circulating water flow of the second working data which is not in the threshold range, the electrolytic hydrogen production voltage is too high, the environmental hydrogen concentration is reported to be abnormal and/or an emergency stop signal, three-stage protection is carried out on the electrolytic hydrogen production device, and the electrolytic hydrogen production device is controlled to carry out load-off stop.
It should be noted that, the content of the module in the second apparatus corresponds to the content of the step of the method in the first apparatus. The content of the safety monitoring method of the electrolytic hydrogen production device is described in the first embodiment, and the detailed description of the module content of the safety monitoring device of the electrolytic hydrogen production device is omitted in this embodiment.
Embodiment III:
FIG. 3 is a schematic flow chart of a safety monitoring system of an electrolytic hydrogen plant according to an embodiment of the present application.
As shown in fig. 3, the embodiment of the application provides a safety monitoring system of an electrolytic hydrogen production device, which comprises an acquisition module and a safety monitoring module connected with the acquisition module, wherein the acquisition module is used for acquiring working data before starting and in the running process of the electrolytic hydrogen production device, and the safety monitoring module is used for carrying out primary protection, secondary protection and tertiary protection on the electrolytic hydrogen production device according to the working data by adopting the safety monitoring method of the electrolytic hydrogen production device.
The content of the safety monitoring method of the electrolytic hydrogen production device is described in the first embodiment, and the content of the safety monitoring method of the electrolytic hydrogen production device is not described in detail in this embodiment. In this embodiment, the collection module includes temperature sensor, pressure sensor, level sensor, water flowmeter and conductivity appearance etc. temperature sensor is used for detecting circulating water's temperature, and pressure sensor is used for detecting hydrogen manufacturing operating pressure, cooling water's pressure, and level sensor is used for detecting circulating water's liquid level, and the water flow meter is used for detecting circulating water's flow, and the conductivity appearance is used for detecting water quality conductivity. The acquisition module can acquire the abnormality of the low report of the environmental hydrogen concentration or the abnormality of the high report of the environmental hydrogen concentration through the environmental hydrogen concentration alarm. The acquisition module acquires an emergency stop signal. The acquisition module can also acquire the current and the voltage of the electrolytic cell. The electrolytic hydrogen production device is linked with the safety monitoring system of the electrolytic hydrogen production device through the digital acquisition (I/O port) of the PLC, so that the external emergency stop function is realized. The safety monitoring system of the electrolytic hydrogen production device collects analog quantity signals, digital quantity signals and emergency stop signals of the electrolytic hydrogen production device through the collecting module, inputs the analog quantity signals, the digital quantity signals and the emergency stop signals into the safety monitoring module, and the safety monitoring module processes collected working data according to the safety monitoring method of the electrolytic hydrogen production device so as to realize the safety monitoring of the whole electrolytic hydrogen production device.
Embodiment four:
Fig. 4 is a schematic diagram of a terminal device according to an embodiment of the present application.
As shown in fig. 4, an embodiment of the present application provides a terminal device, including a processor and a memory;
A memory for storing program code and transmitting the program code to the processor;
And the processor is used for executing the safety monitoring method of the electrolytic hydrogen production device according to the instructions in the program codes.
It should be noted that the processor is configured to execute the steps in the foregoing embodiment of the method for monitoring safety of an electrolytic hydrogen production device according to the instructions in the program code. Or the processor, when executing the computer program, performs the functions of the modules/units in the system/device embodiments described above.
For example, a computer program may be split into one or more modules/units, which are stored in a memory and executed by a processor to perform the present application. One or more of the modules/units may be a series of computer program instruction segments capable of performing specific functions for describing the execution of the computer program in the terminal device.
The terminal device may be a computing device such as a desktop computer, a notebook computer, a palm computer, a cloud server, etc. The terminal device may include, but is not limited to, a processor, a memory. It will be appreciated by those skilled in the art that the terminal device is not limited and may include more or less components than those illustrated, or may be combined with certain components, or different components, e.g., the terminal device may also include input and output devices, network access devices, buses, etc.
The Processor may be a central processing unit (Centrdl Processing Unit, CPU), other general purpose Processor, digital signal Processor (DIGITDL SIGNDL Processor, DSP), application specific integrated Circuit (dpplicdtion SPECIFIC INTEGRDTED Circuit, dSIC), off-the-shelf programmable gate array (Field-Progrdmmdble GDTE DRRDY, FPGd) or other programmable logic device, discrete gate or transistor logic device, discrete hardware components, or the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
The memory may be an internal storage unit of the terminal device, such as a hard disk or a memory of the terminal device. The memory may also be an external storage device of the terminal device, such as a plug-in hard disk provided on the terminal device, a smart memory card (SMDRT MEDID CDRD, SMC), a secure digital (Secure Digitdl, SD) card, a flash memory card (FLDSH CDRD), etc. Further, the memory may also include both an internal storage unit of the terminal device and an external storage device. The memory is used for storing computer programs and other programs and data required by the terminal device. The memory may also be used to temporarily store data that has been output or is to be output.
It will be clear to those skilled in the art that, for convenience and brevity of description, specific working procedures of the above-described systems, apparatuses and units may refer to corresponding procedures in the foregoing method embodiments, which are not repeated herein.
In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of the units is merely a logical function division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other forms.
The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in the embodiments of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.
The integrated units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application may be embodied essentially or in part or all of the technical solution or in part in the form of a software product stored in a storage medium, including instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present application. The storage medium includes a U disk, a removable hard disk, a read-Only Memory (ROM), a random access Memory (RdM, rdndom dccess Memory), a magnetic disk or an optical disk, and other various media capable of storing program codes.
While the application has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that the foregoing embodiments may be modified or equivalents may be substituted for some of the features thereof, and that the modifications or substitutions do not depart from the spirit and scope of the embodiments of the application.
Claims (7)
1. The safety monitoring method of the electrolytic hydrogen production device is characterized by comprising the following steps of:
Acquiring first working data and second working data before starting and in the running process of the electrolytic hydrogen production device;
judging according to the first working data, determining whether to execute primary protection on the electrolytic hydrogen production device or not, and obtaining the equipment state of the electrolytic hydrogen production device;
If the equipment state is that the electrolytic hydrogen production device is in an operating state, judging according to the second working data, and determining whether to execute secondary protection and/or tertiary protection on the electrolytic hydrogen production device;
Determining that the first-stage protection is performed on the electrolytic hydrogen production device comprises performing the first-stage protection on the electrolytic hydrogen production device if the circulating water temperature of the first working data is not in a threshold range, the liquid level of a circulating water tank is not in an operation range, the water quality conductivity is unqualified, the hydrogen production working pressure is too high, the cooling water pressure is too low and/or the environmental hydrogen concentration is abnormal, and prohibiting the electrolytic hydrogen production device from being started;
determining that the second-stage protection is performed on the electrolytic hydrogen production device comprises performing the second-stage protection on the electrolytic hydrogen production device if the circulating water temperature of the second working data is not in a threshold range, the liquid level of a circulating water tank is not in an operating range, the water quality conductivity is unqualified, the hydrogen production working pressure is too high, the cooling water pressure is too low and/or the environmental hydrogen concentration is low, and controlling the electrolytic hydrogen production device to perform load reduction and shutdown;
determining that the third-stage protection is performed on the electrolytic hydrogen production device comprises performing the third-stage protection on the electrolytic hydrogen production device if the circulating water flow of the second working data is not in a threshold range, the electrolytic hydrogen production voltage is too high, the environmental hydrogen concentration is reported to be abnormal and/or an emergency stop signal is generated, and controlling the electrolytic hydrogen production device to perform the off-load stop.
2. The method for monitoring the safety of an electrolytic hydrogen production device according to claim 1, wherein if the water quality conductivity of the first working data is greater than 5uS/cm, the water quality conductivity is not qualified, and if the water quality conductivity of the second working data is greater than 1.5uS/cm within two minutes, the water quality conductivity is not qualified.
3. The safety monitoring method of an electrolytic hydrogen production apparatus according to claim 1, wherein if the circulating water temperature of the first operation data and the second operation data is greater than 65 ℃ or less than 5 ℃, the circulating water temperature is not within a threshold range, if the circulating water level of the first operation data and the second operation data is greater than 90% or less than 40%, the circulating water tank level is not within an operation range, if the hydrogen production operation pressure of the first operation data and the second operation data is greater than 32bar, the hydrogen production operation pressure is too high, if the cooling water pressure of the first operation data and the second operation data is less than 0.5bar, the cooling water pressure is too low, if the environmental hydrogen concentration of the first operation data and the second operation data is not less than 25% lel, if the environmental hydrogen concentration of the first operation data and the second operation data is not less than 50% lel, the environmental hydrogen concentration is high, and the environmental hydrogen concentration includes abnormal environmental hydrogen concentration and abnormal environmental hydrogen concentration is high.
4. The method for monitoring the safety of an electrolytic hydrogen production device according to claim 1, comprising performing primary protection, secondary protection, and tertiary protection according to the electrolytic hydrogen production device, issuing an alarm and saving the first operation data or the second operation data.
5. The safety monitoring device of the electrolytic hydrogen production device is characterized by comprising a data acquisition module, a first judgment protection module and a second judgment protection module;
The data acquisition module is used for acquiring first working data and second working data before starting and in the running process of the electrolytic hydrogen production device;
The first judgment protection module is used for judging according to the first working data, determining whether to execute primary protection on the electrolytic hydrogen production device or not, and obtaining the equipment state of the electrolytic hydrogen production device;
The second judgment protection module is used for judging whether to execute secondary protection and/or tertiary protection on the electrolytic hydrogen production device according to the equipment state which is the running state of the electrolytic hydrogen production device and the second working data;
The first judgment protection module is further used for executing first-stage protection on the electrolytic hydrogen production device according to the condition that the circulating water temperature of the first working data is not in a threshold range, the liquid level of the circulating water tank is not in an operation range, the water quality conductivity is unqualified, the hydrogen production working pressure is too high, the cooling water pressure is too low and/or the environmental hydrogen concentration is abnormal, and prohibiting the electrolytic hydrogen production device from being started;
The second judgment protection module is also used for executing secondary protection on the electrolytic hydrogen production device and controlling the electrolytic hydrogen production device to execute load reduction and stop according to the condition that the circulating water temperature of the second working data is not in the threshold range, the liquid level of the circulating water tank is not in the operation range, the water quality conductivity is unqualified, the hydrogen production working pressure is too high, the cooling water pressure is too low and/or the environmental hydrogen concentration is low and abnormal, and/or
And according to the circulating water flow of the second working data which is not in the threshold range, the electrolytic hydrogen production voltage is too high, the environmental hydrogen concentration is reported to be abnormal and/or an emergency stop signal, three-stage protection is carried out on the electrolytic hydrogen production device, and the electrolytic hydrogen production device is controlled to carry out load-off stop.
6. The safety monitoring system of the electrolytic hydrogen production device is characterized by comprising an acquisition module and a safety monitoring module connected with the acquisition module, wherein the acquisition module is used for acquiring working data before starting and in the running process of the electrolytic hydrogen production device, and the safety monitoring module is used for carrying out primary protection, secondary protection and tertiary protection on the electrolytic hydrogen production device according to the working data by adopting the safety monitoring method of the electrolytic hydrogen production device as claimed in any one of claims 1-4.
7. A terminal device comprising a processor and a memory;
The memory is used for storing program codes and transmitting the program codes to the processor;
The processor is configured to execute the safety monitoring method of the electrolytic hydrogen production device according to any one of claims 1 to 4 according to the instructions in the program code.
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| CN211645406U (en) * | 2020-03-17 | 2020-10-09 | 益生瑞(上海)生物科技有限公司 | Intelligent monitoring system for hydrogen production equipment |
| CN112226787B (en) * | 2020-10-21 | 2022-04-08 | 阳光电源股份有限公司 | Control method, device and system for startup and shutdown of hydrogen production system and storage medium |
| JP7564029B2 (en) * | 2021-03-17 | 2024-10-08 | 株式会社豊田中央研究所 | Control device, water electrolysis system, operation method of water electrolysis device, and program |
| CN113279002B (en) * | 2021-04-29 | 2022-08-16 | 全球能源互联网研究院有限公司 | Control method and system for multi-tank parallel electrolysis hydrogen production |
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