A safety monitoring method, device, system and equipment for electrolytic hydrogen production device

Abstract

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

[0001] The present application relates to the technical field of hydrogen production safety control, and in particular to a safety monitoring method, device, system and equipment for an electrolytic hydrogen production device. Background Art

[0002] Before the start-up or during the operation of the electrolytic hydrogen production device, when the circulating water temperature is out of range, the circulating water tank level is out of the operating range, the circulating water flow is too low, the water quality is unqualified, the cooling water pressure is too low, the hydrogen production system working pressure is too high, the electrolysis voltage is too high, the electrolysis current is too high, the ambient hydrogen concentration is abnormal, the emergency stop signal is triggered, etc., the electrolyzer hydrogen production equipment may be in an abnormal state, and the control system needs to respond quickly, reliably and stably to the corresponding processing flow to ensure that the hydrogen production device operates more safely, stably and reliably. Summary of the invention

[0003] The embodiments of the present application provide a safety monitoring method, device, system and equipment for an electrolytic hydrogen production device, which are used to solve the technical problem that the control system of the existing electrolytic hydrogen production device has potential safety hazards, resulting in the device being unable to operate safely, stably and reliably.

[0004] In order to achieve the above objectives, the embodiments of the present application provide the following technical solutions:

[0005] On the one hand, a safety monitoring method for an electrolytic hydrogen production device is provided, comprising the following steps:

[0006] Acquire first working data and second working data before startup and during operation of the electrolytic hydrogen production device;

[0007] Judging according to the first working data, determining whether to perform primary protection on the hydrogen production device by electrolysis, and obtaining the equipment status of the hydrogen production device by electrolysis;

[0008] If the device state is that the electrolysis hydrogen production device is in an operating state, judging according to the second working data to determine whether to perform secondary protection and / or tertiary protection on the electrolysis hydrogen production device;

[0009] Among them, the content of determining to perform the first-level protection on the hydrogen production device by electrolysis includes: if the circulating water temperature of the first working data is not within the threshold range, the circulating water tank liquid level is not within the 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 ambient hydrogen concentration is abnormal, then the first-level protection is performed on the hydrogen production device by electrolysis, and the start-up of the hydrogen production device by electrolysis is prohibited.

[0010] Preferably, the content of determining to perform secondary protection on the hydrogen production device by electrolysis includes: if the circulating water temperature of the second working data is not within the threshold range, the circulating water tank liquid level is not within the 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 ambient hydrogen concentration is abnormally low, then the secondary protection of the hydrogen production device is performed, and the hydrogen production device is controlled to perform load reduction and shutdown.

[0011] Preferably, if the water conductivity of the first working data is greater than 5uS / cm, the water conductivity is unqualified; if the water conductivity of the second working data is greater than 1.5uS / cm for two minutes, the water conductivity is unqualified.

[0012] Preferably, if the circulating water temperature of the first working data and the second working data is greater than 65°C or less than 5°C, the circulating water temperature is not within the 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 within the operating 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 ambient hydrogen concentration of the first working data and the second working data is not less than 25%LEL, the ambient hydrogen concentration is underreported abnormally; if the ambient hydrogen concentration of the first working data and the second working data is not less than 50%LEL, the ambient hydrogen concentration is overreported abnormally; the ambient hydrogen concentration abnormality includes ambient hydrogen concentration underreporting abnormality and ambient hydrogen concentration overreporting abnormality.

[0013] Preferably, the content of determining to perform the third-level protection on the hydrogen production electrolysis device includes: if the circulating water flow rate of the second working data is not within the threshold range, the hydrogen production electrolysis voltage is too high, the ambient hydrogen concentration is abnormally high and / or an emergency shutdown signal is issued, then the third-level protection is performed on the hydrogen production electrolysis device, and the hydrogen production electrolysis device is controlled to perform a load-off shutdown.

[0014] Preferably, the safety monitoring method for the electrolytic hydrogen production device includes: executing primary protection, secondary protection and tertiary protection according to the electrolytic hydrogen production device, issuing an alarm and saving the first working data or the second working data.

[0015] In yet another aspect, a safety monitoring device for an electrolytic hydrogen production device is provided, comprising a data acquisition module, a first judgment and protection module, and a second judgment and protection module;

[0016] The data acquisition module is used to acquire the first working data and the second working data before the start-up and during the operation of the electrolytic hydrogen production device;

[0017] The first judgment protection module is used to judge according to the first working data to determine whether to perform primary protection on the electrolysis hydrogen production device and obtain the equipment status of the electrolysis hydrogen production device;

[0018] The second judgment protection module is used to determine whether to perform secondary protection and / or tertiary protection on the electrolysis hydrogen production device according to the second working data based on the equipment status that the electrolysis hydrogen production device is in an operating state;

[0019] Among them, the first judgment protection module is also used to perform primary protection on the electrolytic hydrogen production device and prohibit starting the electrolytic hydrogen production device according to the circulating water temperature of the first working data not being within the threshold range, the circulating water tank liquid level not being within the operating range, the water quality conductivity being unqualified, the hydrogen production working pressure being too high, the cooling water pressure being too low and / or the ambient hydrogen concentration being abnormal.

[0020] Preferably, the second judgment protection module is further used to perform secondary protection on the electrolytic hydrogen production device and control the electrolytic hydrogen production device to perform load reduction and shutdown according to the circulating water temperature of the second working data being not within a threshold range, the circulating water tank liquid level being not within an operating range, the water quality conductivity being unqualified, the hydrogen production working pressure being too high, the cooling water pressure being too low and / or the ambient hydrogen concentration being low reporting abnormality; and / or

[0021] According to the circulating water flow rate of the second working data being out of the threshold range, the electrolysis hydrogen production voltage being too high, the ambient hydrogen concentration being abnormally high and / or the emergency shutdown signal, the electrolysis hydrogen production device is subjected to the third-level protection, and the electrolysis hydrogen production device is controlled to perform load-off shutdown.

[0022] On the other hand, a safety monitoring system for an electrolytic hydrogen production device is provided, comprising an acquisition module and a safety monitoring module connected to the acquisition module, wherein the acquisition module is used to collect working data of the electrolytic hydrogen production device before startup and during operation, and the safety monitoring module is used to perform primary protection, secondary protection, and tertiary protection on the electrolytic hydrogen production device according to the working data using the safety monitoring method for the electrolytic hydrogen production device described above.

[0023] In another aspect, a terminal device is provided, comprising a processor and a memory;

[0024] The memory is used to store program codes and transmit the program codes to the processor;

[0025] The processor is used to execute the safety monitoring method of the electrolysis hydrogen production device according to the instructions in the program code.

[0026] The safety monitoring method, device, system and equipment of the hydrogen electrolysis device, the safety monitoring method comprises obtaining the first working data and the second working data of the hydrogen electrolysis device before starting and during operation; judging according to the first working data, determining whether to perform the first-level protection on the hydrogen electrolysis device, and obtaining the equipment status of the hydrogen electrolysis device; if the equipment status is that the hydrogen electrolysis device is in operation, judging according to the second working data, determining whether to perform the second-level protection and / or the third-level protection on the hydrogen electrolysis device; wherein, the content of determining to perform the first-level protection on the hydrogen electrolysis device comprises: if the circulating water temperature of the first working data 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 unqualified, the hydrogen production working pressure is too high, the cooling water pressure is too low and / or the ambient hydrogen concentration is abnormal, then the first-level protection is performed on the hydrogen electrolysis device, and the start-up of the hydrogen electrolysis device is prohibited. It can be seen from the above technical scheme that the embodiments of the present application have the following advantages: the safety monitoring method of the hydrogen production electrolysis device collects data before the start-up and during the operation of the hydrogen production electrolysis device, and the hydrogen production electrolysis device is safety monitored according to the collected first working data and second working data; when the first working data or the second working data is abnormal, the hydrogen production electrolysis device is correspondingly prohibited from starting up by the first level protection, shut down by the fault of the second level protection, and shut down by the emergency of the third level protection, so as to ensure the safe and reliable operation of the hydrogen production electrolysis device; the technical problem that the control system of the existing hydrogen production electrolysis device has potential safety hazards and cannot operate safely, stably and reliably is solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0028] Figure 1 A flow chart of the steps of the safety monitoring method of the electrolytic hydrogen production device described in the embodiment of the present application;

[0029] Figure 2 A schematic diagram of the framework of a safety monitoring device for an electrolytic hydrogen production device according to an embodiment of the present application;

[0030] Figure 3 A schematic diagram of a safety monitoring system for an electrolytic hydrogen production device according to an embodiment of the present application;

[0031] Figure 4 A schematic diagram of a terminal device described in an embodiment of the present application. DETAILED DESCRIPTION

[0032] In order to make the purpose, features, and advantages of the invention of this application more obvious and easy to understand, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the embodiments described below are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0033] In the description of the embodiments of the present application, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0034] In the embodiments of the present application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0035] The embodiments of the present application provide a safety monitoring method, device, system and equipment for an electrolytic hydrogen production device, which solves the technical problem that the control system of the existing electrolytic hydrogen production device has potential safety hazards, causing it to be unable to operate safely, stably and reliably.

[0036] Embodiment 1:

[0037] Figure 1 This is a flow chart of the steps of the safety monitoring method of the electrolytic hydrogen production device described in an embodiment of the present application.

[0038] like Figure 1 As shown, the embodiment of the present application provides a safety monitoring method for an electrolytic hydrogen production device, comprising the following steps:

[0039] S1. Acquire first working data and second working data of the hydrogen production device before startup and during operation.

[0040] It should be noted that in step S1, the working data of the electrolytic hydrogen production device before startup and during operation are obtained. The first working data includes circulating water temperature, circulating water tank level, water conductivity, hydrogen production working pressure, cooling water pressure and ambient hydrogen concentration, etc. The second working data includes circulating water temperature, circulating water tank level, water conductivity, hydrogen production working pressure, cooling water pressure, ambient hydrogen concentration, electrolytic hydrogen production voltage, electrolysis current, circulating water flow and emergency stop signal, etc. In this embodiment, the electrolytic hydrogen production device includes an electrolyzer, a circulating water tank and a cooling device. Circulating water is placed in the circulating water tank. The water conductivity refers to the water conductivity at the water inlet of the electrolyzer. The hydrogen production working pressure refers to the pressure of hydrogen production in the electrolyzer. The cooling water pressure refers to the pressure of the cooling device. The electrolytic hydrogen production voltage refers to the voltage during the hydrogen production process of the electrolyzer. The emergency stop signal includes a signal sent by the emergency stop button of the electrolytic hydrogen production device being triggered and a signal sent by the external emergency stop device being triggered.

[0041] In the embodiment of the present application, the cooling water pressure of the electrolytic hydrogen production device is too low, indicating that the cooling water system in the electrolytic hydrogen production device is not started or fails. During the hydrogen production process of the electrolytic hydrogen production device, the temperature of the circulating water gradually rises. If there is no cold water cooling, the circulating water temperature will continue to rise, resulting in an excessively high circulating water temperature, which will then cause the electrolytic hydrogen production device to stop. Electrolysis current detection is to protect the electrolytic cell of the electrolytic hydrogen production device. Excessive electrolysis current may cause high electrolysis voltage, and the hydrogen production of the electrolytic hydrogen production device is inconsistent with the set hydrogen production flow rate. The electrolysis voltage is too high, indicating that the electrolytic cell of the electrolytic hydrogen production device has a higher single-chamber voltage. The ultra-high single-chamber voltage is likely to cause oxidation in the diffusion layer of the electrolytic cell, which reduces the hydrogen production efficiency of the electrolytic hydrogen production device, thereby seriously affecting the life of the electrolytic cell. The environmental hydrogen concentration of the electrolytic hydrogen production device is abnormal, indicating that there may be hydrogen leakage, there is a serious safety risk, and hydrogen production is prohibited.

[0042] S2. Determine whether to perform primary protection on the electrolytic hydrogen production device based on the first working data, and obtain the equipment status of the electrolytic hydrogen production device. The content of determining whether to perform primary protection on the electrolytic hydrogen production device includes: if the circulating water temperature of the first working data is not within the threshold range, the circulating water tank liquid level is not within the 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 ambient hydrogen concentration is abnormal, then the electrolytic hydrogen production device is performed with primary protection, and the electrolytic hydrogen production device is prohibited from starting.

[0043] It should be noted that in step S2, a judgment is made based on the first working data of the electrolytic hydrogen production device collected before starting in step S1 to determine whether to start the first level protection. If the collected first working data does not meet the requirements for starting the first level protection, it means that the electrolytic hydrogen production device can be started normally to work, which means that the equipment state of the electrolytic hydrogen production device is in operation. In this embodiment, the first level protection is determined based on the first working data collected before the electrolytic hydrogen production device is started. When it is determined that the first level protection is performed on the electrolytic hydrogen production device, it means that the electrolytic hydrogen production device is in an abnormal state and the electrolytic hydrogen production device is prohibited from starting. If the electrolytic hydrogen production device is not provided with the first level protection, the electrolytic hydrogen production device is started directly. If the operating conditions are not met, the second level and third level protection shutdown may be triggered after starting. The electrolytic hydrogen production device is frequently started and stopped, which may reduce the life of the electrolytic cell and the electrolytic water circulation pump of the electrolytic hydrogen production device; in severe cases, the electrolytic cell and other internal components of the electrolytic hydrogen production device may be damaged. Furthermore, when the circulating water temperature is too low, the pipeline may freeze. Starting the electrolytic hydrogen production device may cause risks such as damage to the electrolytic water circulating water pump, damage to the pipeline, and dry burning of the electrolyzer. When the circulating water temperature is too high (exceeding the design temperature), the membrane electrode inside the electrolyzer may expand, and the sealing layer may deform, thereby reducing the life of the electrolyzer or damaging the electrolyzer. Unqualified water conductivity will reduce the life of the electrolyzer, because low-purity water may cause scale accumulation inside the electrolyzer, affecting the conductivity and thus the life of the electrolyzer; in severe cases, there are other impurities that may damage the electrolyzer. The hydrogen production working pressure is too high and exceeds the design pressure. Low cooling water pressure indicates that the cold water system has not started or failed, has not reached the operating conditions, and cannot meet the circulating water cooling requirements. When the ambient hydrogen concentration is abnormal, there will be serious risks and hydrogen production is prohibited. The safety monitoring method of the electrolytic hydrogen production device first makes a first-level protection judgment, which is a prerequisite for the operation of the electrolytic hydrogen production device and an important protection step for the electrolytic hydrogen production device. After setting the first-level protection, the control system of the electrolytic hydrogen production device can more effectively protect the electrolytic cell, water pump, pipeline and other components inside the electrolytic hydrogen production device, extend the service life and improve the safety performance.

[0044] S3. If the device status is that the electrolytic hydrogen production device is in operation, a judgment is made based on the second working data to determine whether to perform secondary protection and / or tertiary protection on the electrolytic hydrogen production device.

[0045] It should be noted that in step S3, based on the equipment status, the hydrogen production electrolysis equipment is in an operating state, and a judgment is made based on the second working data collected during the operation of the hydrogen production electrolysis device to determine whether the hydrogen production electrolysis device performs secondary protection and / or tertiary protection during the hydrogen production process.

[0046] In an embodiment of the present application, the safety monitoring method of the electrolytic hydrogen production device collects data before the start-up and during the operation of the electrolytic hydrogen production device, and performs safety monitoring on the electrolytic hydrogen production device based on the collected first working data and the second working data; when the first working data or the second working data is abnormal, the electrolytic hydrogen production device is correspondingly prohibited from starting up by the first level protection, shut down by the fault by the second level protection, and shut down by the emergency by the third level protection, so as to ensure the safe and reliable operation of the electrolytic hydrogen production device.

[0047] It should be noted that the safety monitoring method of the electrolytic hydrogen production device controls the operation of the electrolytic hydrogen production device, simplifies the control process, and realizes integrated safety monitoring with PLC main control, multiple safety monitoring inputs, and multiple protection process outputs. It can also achieve the purpose of more integrated, safer, more stable, and more reliable hydrogen production of the electrolytic hydrogen production device. The electrolytic hydrogen production device is made to respond quickly, reliably, and stably to the corresponding fault abnormality handling process to achieve comprehensive protection of the electrolytic hydrogen production device. Controlling the operation of the electrolytic hydrogen production device through the safety monitoring method of the electrolytic hydrogen production device is also an important part of realizing the unmanned operation of the electrolytic hydrogen production device.

[0048] The present application provides a safety monitoring method for an electrolytic hydrogen production device, comprising obtaining first working data and second working data before the start-up and during the operation of the electrolytic hydrogen production device; 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 an operating state, judging based on the second working data, determining whether to perform secondary protection and / or tertiary protection on the electrolytic hydrogen production device; wherein, determining the content of performing primary protection on the electrolytic hydrogen production device includes: if the circulating water temperature of the first working data is not within a threshold range, the liquid level of the circulating water tank is not within 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 ambient hydrogen concentration is abnormal, then performing primary protection on the electrolytic hydrogen production device, and prohibiting the start-up of the electrolytic hydrogen production device. The safety monitoring method of the electrolytic hydrogen production device collects data before the electrolytic hydrogen production device is started and during operation, and performs 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 is abnormal, the electrolytic hydrogen production device is correspondingly prohibited from starting up by the first level protection, shut down by the fault of the second level protection, and shut down by the emergency of the third level protection, so as to ensure the safe and reliable operation of the electrolytic hydrogen production device; and solves the technical problem that the control system of the existing electrolytic hydrogen production device has potential safety hazards, resulting in the inability to operate safely, stably and reliably.

[0049] In one embodiment of the present application, the content of determining the execution of secondary protection for the electrolytic hydrogen production device includes: if the circulating water temperature of the second working data is not within the threshold range, the circulating water tank liquid level is not within the 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 ambient hydrogen concentration is abnormally low, then the secondary protection of the electrolytic hydrogen production device is executed, and the electrolytic hydrogen production device is controlled to execute load reduction and shutdown.

[0050] It should be noted that the determination of the execution of the secondary protection of the electrolytic hydrogen production device is based on the second working data collected by the electrolytic hydrogen production device during the hydrogen production process. Specifically, as long as any of the information such as the circulating water temperature is not within the threshold range, the circulating water tank level is not within the operating range, the water quality conductivity is unqualified, the hydrogen production working pressure is too high, the cooling water pressure is too low, and the ambient hydrogen concentration is low and abnormal appears, it means that the electrolytic hydrogen production device cannot continue in the current operating state and needs to automatically reduce the load and shut down to enter the secondary protection.

[0051] In the embodiment of the present application, if the water conductivity of the first working data is greater than 5uS / cm, the water conductivity is unqualified; if the water conductivity of the second working data is greater than 1.5uS / cm for two minutes, the water conductivity is unqualified. If the circulating water temperature of the first working data and the second working data is greater than 65°C or less than 5°C, the circulating water temperature is not within the threshold range; if the circulating water level of the first working data and the second working data is greater than 90% or less than 40%, the circulating water tank level is not within the operating 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 abnormally 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 abnormally high; the environmental hydrogen concentration abnormality includes the environmental hydrogen concentration low report abnormality and the environmental hydrogen concentration high report abnormality.

[0052] It should be noted that by comparing the collected working data with the corresponding threshold value, it is determined whether the circulating water temperature of the working data is within the threshold range, whether the liquid level in the circulating water tank is within the operating range, whether the water conductivity is unqualified, whether the hydrogen production working pressure is too high, whether the cooling water pressure is too low, whether the ambient hydrogen concentration is abnormal, etc.

[0053] In one embodiment of the present application, the content of determining the execution of the third-level protection for the hydrogen production electrolysis device includes: if the circulating water flow rate of the second working data is not within the threshold range, the hydrogen production electrolysis voltage is too high, the ambient hydrogen concentration is abnormally high and / or an emergency shutdown signal is issued, then the third-level protection is executed on the hydrogen production electrolysis device, and the hydrogen production electrolysis device is controlled to execute a load-off shutdown.

[0054] It should be noted that the determination of the execution of the third-level protection of the electrolytic hydrogen production device is based on the second working data collected by the electrolytic hydrogen production device during the hydrogen production process. Specifically, as long as any of the information such as the circulating water flow rate is not within the threshold range, the electrolytic hydrogen production voltage is too high, the ambient hydrogen concentration is abnormally high, and the emergency shutdown signal appears, it means that the electrolytic hydrogen production device is in an emergency state in the current operating state, and it is necessary to automatically take the load-off shutdown to enter the third-level protection. In this embodiment, if the circulating water flow rate of the second working data is less than 1.2m3 / h or greater than 3m3 / h, the circulating water flow rate is not within the threshold range; if the electrolytic hydrogen production voltage of the second working data is greater than 60V, the electrolytic hydrogen production voltage is too high; the emergency shutdown signal is the signal sent by the emergency stop button of the electrolytic hydrogen production device being triggered and the signal sent by the external emergency shutdown device being triggered.

[0055] In one embodiment of the present application, the safety monitoring method of the electrolytic hydrogen production device includes: performing primary protection, secondary protection and tertiary protection according to the electrolytic hydrogen production device, issuing an alarm and saving first working data or second working data.

[0056] It should be noted that the safety monitoring method of the electrolytic hydrogen production device automatically executes the first-level protection of prohibiting startup, the second-level protection of fault shutdown or the third-level protection of emergency shutdown according to the abnormal situation of the real-time monitoring working data, issues an alarm and displays the alarm information on the upper computer interface, and stores the monitoring working data. The ways of issuing the alarm prompt include sound prompt, light prompt, interface prompt, and user terminal prompt bound to the user, and the alarm must be manually confirmed before it can be released.

[0057] Embodiment 2:

[0058] Figure 2 This is a schematic diagram of the framework of the safety monitoring device for the electrolytic hydrogen production device described in an embodiment of the present application.

[0059] like Figure 2 As shown, the embodiment of the present application provides a safety monitoring device for an electrolytic hydrogen production device, including a data acquisition module 10, a first judgment and protection module 20 and a second judgment and protection module 30;

[0060] The data acquisition module 10 is used to acquire the first working data and the second working data before the start-up and during the operation of the electrolytic hydrogen production device;

[0061] The first judgment protection module 20 is used to judge according to the first working data to determine whether to perform the first-level protection on the electrolytic hydrogen production device and obtain the equipment status of the electrolytic hydrogen production device;

[0062] The second judgment protection module 30 is used to judge whether to perform secondary protection and / or tertiary protection on the electrolytic hydrogen production device according to the second working data according to the device status that the electrolytic hydrogen production device is in an operating state;

[0063] Among them, the first judgment protection module 20 is also used to perform primary protection on the electrolytic hydrogen production device and prohibit starting the electrolytic hydrogen production device according to the circulating water temperature of the first working data being not within the threshold range, the circulating water tank liquid level being not within the operating range, the water quality conductivity being unqualified, the hydrogen production working pressure being too high, the cooling water pressure being too low and / or the ambient hydrogen concentration being abnormal.

[0064] In the embodiment of the present application, the second judgment protection module 30 is also used to perform secondary protection on the electrolytic hydrogen production device and control the electrolytic hydrogen production device to perform load reduction and shutdown according to the circulating water temperature of the second working data being not within the threshold range, the circulating water tank liquid level being not within the operating range, the water quality conductivity being unqualified, the hydrogen production working pressure being too high, the cooling water pressure being too low and / or the ambient hydrogen concentration being low.

[0065] According to the second working data, if the circulating water flow rate is not within the threshold range, the electrolysis hydrogen production voltage is too high, the ambient hydrogen concentration is abnormally high and / or an emergency shutdown signal is sent, the electrolysis hydrogen production device is subjected to the third-level protection and the electrolysis hydrogen production device is controlled to perform load-off shutdown.

[0066] It should be noted that the content of the module in the device of Example 2 corresponds to the step content of the method in Example 1. The content of the safety monitoring method of the electrolytic hydrogen production device has been described in Example 1, and the module content of the safety monitoring device of the electrolytic hydrogen production device will not be described in detail in this embodiment.

[0067] Embodiment three:

[0068] Figure 3 This is a schematic flow chart of the safety monitoring system of the electrolytic hydrogen production device described in an embodiment of the present application.

[0069] like Figure 3 As shown, an embodiment of the present application provides a safety monitoring system for an electrolytic hydrogen production device, including an acquisition module and a safety monitoring module connected to the acquisition module, the acquisition module being used to collect working data of the electrolytic hydrogen production device before startup and during operation, and the safety monitoring module being used to perform primary protection, secondary protection, and tertiary protection on the electrolytic hydrogen production device according to the working data using the above-mentioned safety monitoring method for the electrolytic hydrogen production device.

[0070] It should be noted that the content of the safety monitoring method of the electrolytic hydrogen production device has been described in Example 1, and the content of the safety monitoring method of the electrolytic hydrogen production device is no longer described in detail in this embodiment. In this embodiment, the acquisition module includes a temperature sensor, a pressure sensor, a liquid level sensor, a water flow meter and a conductivity meter, etc. The temperature sensor is used to detect the temperature of the circulating water, the pressure sensor is used to detect the hydrogen production working pressure and the pressure of the cooling water, the liquid level sensor is used to detect the liquid level of the circulating water tank, the water flow meter is used to detect the flow of the circulating water, and the conductivity meter is used to detect the water quality conductivity. The acquisition module can obtain whether the environmental hydrogen concentration is low or high through the environmental hydrogen concentration alarm. The acquisition module collects emergency shutdown signals. The acquisition module can also collect the current and voltage of the electrolyzer. The electrolytic hydrogen production device is linked to the safety monitoring system of the electrolytic hydrogen production device through the digital quantity acquisition (I / O port) of the PLC to realize the external emergency shutdown function. The safety monitoring system of the electrolytic hydrogen production device collects analog signals, digital signals, and emergency shutdown signals of the electrolytic hydrogen production device through an acquisition module, and inputs them into the safety monitoring module. The safety monitoring module processes the collected working data according to the safety monitoring method of the electrolytic hydrogen production device to achieve safety monitoring of the entire electrolytic hydrogen production device.

[0071] Embodiment 4:

[0072] Figure 4 A schematic diagram of a terminal device described in an embodiment of the present application.

[0073] like Figure 4 As shown, an embodiment of the present application provides a terminal device, including a processor and a memory;

[0074] A memory, used for storing program codes and transmitting the program codes to a processor;

[0075] The processor is used to execute the safety monitoring method of the electrolytic hydrogen production device according to the instructions in the program code.

[0076] It should be noted that the processor is used to execute the steps in the above-mentioned safety monitoring method embodiment of an electrolytic hydrogen production device according to the instructions in the program code. Alternatively, the processor implements the functions of each module / unit in the above-mentioned system / device embodiments when executing the computer program.

[0077] Exemplarily, the computer program may be divided into one or more modules / units, one or more modules / units are stored in a memory and executed by a processor to complete the present application. One or more modules / units may be a series of computer program instruction segments capable of completing a specific function, and the instruction segments are used to describe the execution process of the computer program in a terminal device.

[0078] The terminal device may be a computing device such as a desktop computer, a notebook, a PDA, or a cloud server. The terminal device may include, but is not limited to, a processor and a memory. Those skilled in the art will appreciate that this does not constitute a limitation on the terminal device, and may include more or fewer components than shown in the figure, or a combination of certain components, or different components. For example, the terminal device may also include input and output devices, network access devices, buses, etc.

[0079] The processor may be a central processing unit (CPU), other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (dSIC), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor or any conventional processor, etc.

[0080] The memory may be an internal storage unit of the terminal device, such as a hard disk or 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 equipped on the terminal device, a smart memory card (SmdrtMedid 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 to store 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.

[0081] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0082] In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interfaces, devices or units, which can be electrical, mechanical or other forms.

[0083] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple 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.

[0084] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0085] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions to enable a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Redd-Only Memory), random access memory (RdM, Random Access Memory), disk or optical disk and other media that can store program codes.

[0086] As described above, the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A safety monitoring method for an electrolytic hydrogen production device, characterized in that: The following steps are involved: Acquire first working data and second working data before startup and during operation of the electrolytic hydrogen production device; Judging according to the first working data, determining whether to perform primary protection on the hydrogen production device by electrolysis, and obtaining the equipment status of the hydrogen production device by electrolysis; If the device state is that the electrolysis hydrogen production device is in an operating state, judging according to the second working data to determine whether to perform secondary protection and / or tertiary protection on the electrolysis hydrogen production device; The content of determining to perform the first-level protection on the electrolytic hydrogen production device includes: if the circulating water temperature of the first working data is not within the threshold range, the circulating water tank liquid level is not within the 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 ambient hydrogen concentration is abnormal, then the electrolytic hydrogen production device is performed with the first-level protection, and the electrolytic hydrogen production device is prohibited from starting; Determining the content of performing secondary protection on the electrolytic hydrogen production device includes: if the circulating water temperature of the second working data is not within the threshold range, the circulating water tank liquid level is not within the 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 ambient hydrogen concentration is abnormally low, then the secondary protection is performed on the electrolytic hydrogen production device, and the electrolytic hydrogen production device is controlled to perform load reduction and shutdown; The content of determining to perform the third-level protection on the hydrogen production electrolysis device includes: if the circulating water flow rate of the second working data is not within the threshold range, the hydrogen production electrolysis voltage is too high, the ambient hydrogen concentration is abnormally high and / or an emergency shutdown signal is issued, then the third-level protection is performed on the hydrogen production electrolysis device, and the hydrogen production electrolysis device is controlled to perform load-off shutdown.

2. The safety monitoring method for the electrolytic hydrogen production device according to claim 1, characterized in that: If the water conductivity of the first working data is greater than 5uS / cm, the water conductivity is unqualified; if the water conductivity of the second working data is greater than 1.5uS / cm for two consecutive minutes, the water conductivity is unqualified.

3. The safety monitoring method for the electrolytic hydrogen production device according to claim 1, characterized in that: If the circulating water temperature of the first working data and the second working data is greater than 65°C or less than 5°C, the circulating water temperature is not within the 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 within the operating 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 ambient hydrogen concentration of the first working data and the second working data is not less than 25%LEL, the ambient hydrogen concentration is underreported abnormally; if the ambient hydrogen concentration of the first working data and the second working data is not less than 50%LEL, the ambient hydrogen concentration is overreported abnormally; the ambient hydrogen concentration abnormality includes ambient hydrogen concentration underreporting abnormality and ambient hydrogen concentration overreporting abnormality.

4. The safety monitoring method for the electrolytic hydrogen production device according to claim 1, characterized in that: include: According to the electrolytic hydrogen production device, primary protection, secondary protection and tertiary protection are performed, an alarm is issued and the first working data or the second working data is saved.

5. A safety monitoring device for an electrolytic hydrogen production device, characterized in that: It includes a data acquisition module, a first judgment and protection module, and a second judgment and protection module; The data acquisition module is used to acquire the first working data and the second working data before the start-up and during the operation of the electrolytic hydrogen production device; The first judgment protection module is used to judge according to the first working data to determine whether to perform primary protection on the electrolysis hydrogen production device and obtain the equipment status of the electrolysis hydrogen production device; The second judgment protection module is used to determine whether to perform secondary protection and / or tertiary protection on the electrolysis hydrogen production device according to the second working data based on the equipment status that the electrolysis hydrogen production device is in an operating state; The first judgment protection module is further used to perform primary protection on the electrolytic hydrogen production device and prohibit starting the electrolytic hydrogen production device according to the circulating water temperature of the first working data not being within a threshold range, the circulating water tank liquid level not being within an operating range, the water quality conductivity being unqualified, the hydrogen production working pressure being too high, the cooling water pressure being too low and / or the ambient hydrogen concentration being abnormal; The second judgment protection module is further used to perform secondary protection on the electrolytic hydrogen production device and control the electrolytic hydrogen production device to perform load reduction and shutdown according to the circulating water temperature of the second working data being not within a threshold range, the circulating water tank liquid level being not within an operating range, the water quality conductivity being unqualified, the hydrogen production working pressure being too high, the cooling water pressure being too low and / or the ambient hydrogen concentration being low. And / or According to the circulating water flow rate of the second working data being out of the threshold range, the electrolysis hydrogen production voltage being too high, the ambient hydrogen concentration being abnormally high and / or the emergency shutdown signal, the electrolysis hydrogen production device is subjected to the third-level protection, and the electrolysis hydrogen production device is controlled to perform load-off shutdown.

6. A safety monitoring system for an electrolytic hydrogen production device, characterized in that: It includes an acquisition module and a safety monitoring module connected to the acquisition module, the acquisition module is used to collect working data of the electrolytic hydrogen production device before startup and during operation, and the safety monitoring module is used to perform primary protection, secondary protection and tertiary protection on the electrolytic hydrogen production device according to the working data using the safety monitoring method for the electrolytic hydrogen production device as described in any one of claims 1 to 4.

7. A terminal device, characterized in that: including a processor and a memory; The memory is used to store program codes and transmit the program codes to the processor; The processor is used to execute the safety monitoring method for the electrolysis hydrogen production device as described in any one of claims 1-4 according to the instructions in the program code.

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