External temperature monitoring device for water electrolysis hydrogen production device

Abstract

The utility model discloses an external temperature monitoring device for a water electrolysis hydrogen production device, which is characterized in that data acquisition is carried out on the external temperature of the hydrogen production device through an integrated sensor, the integrated sensor is arranged on an inspection device capable of controlling the movement of the integrated sensor along a preset external temperature inspection route, and the inspection device is provided with a moving part; the moving part is used for mounting the integrated sensor, and the inspection device drives the moving part to move to form external surrounding type detection on the electrolytic hydrogen production device; the modularized inspection device which can be independently installed outside the hydrogen production device is arranged, and the inspection device can select different temperature inspection routes according to different hydrogen production devices, so that the temperature detection of some hydrogen production device parts which are shielded at the inner side can be well coped with; and the external temperature detection stability and the long-term working reliability of the hydrogen production device are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of water electrolysis hydrogen production, in particular to an external temperature monitoring device for a water electrolysis hydrogen production device. Background Art

[0002] A water electrolysis hydrogen production system is a device that decomposes water into hydrogen and oxygen. Its core component is the electrolyzer. Depending on the electrolysis technology used, it can be divided into several main types: alkaline electrolysis, proton exchange membrane (PEM) electrolysis, and solid oxide electrolysis.

[0003] A filter-press water electrolyzer is a water electrolysis device that operates at high pressure. It splits water into hydrogen and oxygen through an electrochemical reaction. This type of electrolyzer is valued for its high efficiency and the high purity of hydrogen it produces. The filter-press water electrolyzer chamber is the fundamental component of the filter-press water electrolyzer. The effective combination and management of multiple chambers creates an efficient and stable water electrolysis hydrogen production system. In a filter-press water electrolyzer, a "chamber" (or "cell") is the basic unit of the entire electrolyzer. Multiple such chambers are stacked in a specific manner to form a complete electrolyzer system. Each filter-press water electrolyzer chamber is assembled from an anode, cathode, diaphragm, sealing gasket, and bipolar plates. Each chamber is an independent working unit. In practical applications, multiple chambers are stacked together to increase overall output. Each chamber is flanked by a bipolar plate: one serves as the cathode for the preceding chamber and the other as the anode for the following chamber, forming a series structure.

[0004] A filter-press water electrolyzer is a holistic system composed of multiple chambers (cells). Each chamber is responsible for performing a complete water electrolysis process, and the entire electrolyzer is the result of these chambers working together, offering excellent integration. The total capacity of the electrolyzer can be adjusted by adding or reducing the number of chambers to meet the needs of applications of varying scales, making it highly scalable. While each chamber can be considered an independent operating unit, the entire electrolyzer is managed by a unified control system, managing key parameters such as temperature, pressure, and power supply, resulting in excellent controllability.

[0005] Temperature control is crucial to the performance and lifespan of a filter-press water electrolyzer and its individual chambers. Correct temperature not only improves electrolysis efficiency but also ensures safe operation and extends the lifespan of the equipment. Appropriate temperature accelerates electrochemical reactions on the electrode surfaces, thereby improving water electrolysis efficiency. In alkaline electrolyzers, the operating temperature is typically set between 80°C and 100°C to optimize the production rates of hydrogen and oxygen. Increasing temperature reduces the amount of dissolved gas in water, facilitating faster gas release from solution and minimizing gas loss in the liquid phase. However, excessively high temperatures can accelerate the aging of electrode materials (such as nickel-based alloys) or diaphragm materials (such as asbestos-reinforced PVC), reducing their mechanical strength and chemical stability, and ultimately shortening the lifespan of the electrolyzer. High temperatures can also degrade sealing materials, increasing the risk of leakage. Furthermore, temperature fluctuations can affect the conductivity of the electrolyte solution. Both excessively high and low temperatures can cause a decrease in electrolyte conductivity, increasing resistance and reducing electrolysis efficiency.

[0006] At present, the temperature monitoring method of electrolyzer hydrogen production equipment adopts internal temperature measurement method, and thermocouple temperature sensors are installed in key nodes of the equipment, such as installing thermocouples in the liquid inlet and outlet, and installing thermocouple temperature measurement at the cable connection. Although these temperature monitoring methods can monitor the temperature of specific nodes, they cannot monitor the specific temperature of the electrolyzer. Since the electrolyzer is formed by stacking several small chambers, the temperature of each small chamber is different due to its different position. For example, the end plates at the head and tail of the electrolyzer have a larger area, heat dissipation is faster, and the temperature is relatively low, but the temperature at other positions is relatively high, especially in the middle position. When heat accumulates at intermediate positions, it is easy to cause the temperature regulation to get out of control during operation, exceeding the rated operating temperature and burning the diaphragm inside the electrolytic cell. Therefore, it is necessary not only to monitor the temperature inside specific nodes, but also to measure and monitor the temperature of the entire electrolytic cell externally. Moreover, the current monitoring of the electrolytic cell temperature only stays at the measurement of temperature, and does not combine temperature monitoring with process control. The present utility model detects and controls the overall temperature of the equipment externally, aiming to synchronize and regulate the internal temperature of the electrolytic cell in advance. For example, the control of parameters such as heating power, cooling water flow, and pneumatic valve movement amount can achieve the effect of controlling the electrolytic cell temperature in advance.

[0007] In view of the above, it is necessary to propose an external temperature monitoring device for a water electrolysis hydrogen production device to solve the above problems. Utility Model Content

[0008] The purpose of the utility model is to overcome the defects in the prior art and provide an external temperature monitoring device for a water electrolysis hydrogen production device.

[0009] To achieve the above objectives, the technical solution of the present invention is as follows: a device for monitoring the external temperature of a water electrolysis hydrogen production device, which collects data on the external temperature of the hydrogen production device through an integrated sensor. The integrated sensor is disposed on a patrol device that can control its movement along a preset external temperature patrol route. The patrol device is provided with a moving portion for mounting the integrated sensor. The patrol device drives the moving portion to move to form a surround-type detection of the external surface of the electrolysis hydrogen production device.

[0010] The inspection device includes a track end plate arranged at both ends of the cylindrical hydrogen production device, the inner circle of the track end plate is provided with a second mounting ear hole matching the first mounting ear hole, a circular track is provided on one end surface of the track end plate, and the two track end plates are close to each other and the circular tracks are arranged opposite to each other on one end surface, an axial guide rod is set between the two circular tracks, and the moving part is arranged on the axial guide rod.

[0011] Furthermore, a circumferential operation driving part is provided on the two rail end plates, which drives the guide rod to rotate around the axis of the filter press water electrolyzer body. The moving part is also arranged to move along the axis of the guide rod. The inspection device is also provided with an axial movement driving part that drives the moving part to move axially.

[0012] Furthermore, the integrated sensor adopts one or more of a thermocouple sensor, a resistance temperature detector, a thermistor sensor, an infrared thermometer, and a light temperature sensor.

[0013] Furthermore, the hydrogen production device includes a filter press water electrolyzer body, the surface of the alkali solution inlet pipe, the surface of the electrolyzer gas outlet pipe, and the surface of the cable connecting the electrolyzer. The inspection device is modularly and independently arranged on the hydrogen production device.

[0014] Furthermore, a guide rod is provided between the track end plates on both sides, the guide rod is parallel to the axis of the hydrogen production device, and a moving part is provided on the guide rod.

[0015] Furthermore, the inspection route moves from one end of the hydrogen production device to the other end in a spiral line around the hydrogen production device.

[0016] Furthermore, the inspection route moves axially between the two ends of the hydrogen production device and moves circumferentially around the hydrogen production device to form a continuous zigzag route between the two ends of the hydrogen production device.

[0017] Furthermore, a guide rod is provided between the rail end plates on both sides. The guide rod is parallel to the axis of the hydrogen production device. The guide rod is controlled by the circumferential operation drive unit to rotate around the axis. A plurality of moving parts are provided on the guide rod, and the plurality of moving parts are evenly spaced. The inspection route is a multi-ring route formed by the multi-point detection points moving around the hydrogen production device.

[0018] Furthermore, a guide rod is provided between the first mounting ear holes at both ends of the hydrogen production device, and the guide rod is arranged parallel to the axis of the hydrogen production device. At least three guide rods are distributed circumferentially around the hydrogen production device, and each guide rod is provided with a moving part. The moving part is moved axially by the axial movement driving part, and the integrated sensors on the multiple circumferentially arranged moving parts detect the axial movement of the hydrogen production device to form a full coverage route of the outer periphery of the hydrogen production device; the integrated sensor has an angle detection range of not less than 90° in the horizontal direction.

[0019] Furthermore, the inspection device includes a spacing control mechanism that controls the distance between the integrated sensor and the surface of the hydrogen production device. The spacing control mechanism is arranged on the end surface of the movable part facing the hydrogen production device. The spacing control mechanism is also integrated with an imaging component that monitors the moving position of the integrated sensor.

[0020] The advantages and beneficial effects of the utility model are:

[0021] First, the utility model provides an external temperature monitoring device for a water electrolysis hydrogen production device. By arranging an integrated sensor on the outside of the water electrolysis hydrogen production device, and using a data acquisition module to detect, control and collect data on the integrated sensor, real-time online monitoring of the external temperature of the water electrolysis hydrogen production device is achieved, and the accuracy of external temperature monitoring of the water electrolysis hydrogen production device is improved. Through accurate real-time detection of the external temperature of the hydrogen production device, it is beneficial to make early judgments on the operating conditions of the system, and the temperature changes in the electrolytic cell can be adjusted in advance, reducing the increase in energy consumption caused by abnormal temperature.

[0022] Second, the utility model provides a device for monitoring the external temperature of a water electrolysis hydrogen production device, which provides a variety of design methods for the external temperature monitoring device of the hydrogen production device, and is not limited to the use of contact temperature sensors, such as thermocouples, resistance temperature detectors, thermistor sensors, etc.; and non-contact infrared thermometers, etc.; it provides a good design concept for real-time monitoring of the external temperature of the hydrogen production device.

[0023] Third, the utility model provides an external temperature monitoring device for a water electrolysis hydrogen production device with a modular inspection device that can be independently installed on the outside of the hydrogen production device. The inspection device can select different temperature inspection routes according to the different hydrogen production devices, so that it can also cope with the temperature detection of some hydrogen production device components that are blocked on the inside, thereby improving the stability of the external temperature detection of the hydrogen production device and the reliability of long-term operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the overall principle of a method for monitoring the external temperature of a water electrolysis hydrogen production device in the present utility model;

[0025] Figure 2This is a schematic diagram of the installation of external temperature monitoring for the utility model's reclaimed water electrolysis hydrogen production device;

[0026] Figure 3 This is an exploded view of the external temperature monitoring of the water electrolysis hydrogen production device of the utility model;

[0027] Figure 4 This is a schematic diagram of the first embodiment of the inspection route in the utility model;

[0028] Figure 5 This is a schematic diagram of a second embodiment of the inspection route in the present utility model;

[0029] Figure 6 This is a schematic diagram of the third embodiment of the inspection route in the present utility model;

[0030] Figure 7 This is a schematic diagram of the fourth embodiment of the inspection route in the present utility model;

[0031] In the figure: 1. Integrated sensor; 2. Data acquisition module; 3. PLC control system; 4. Human-computer interface; 5. Actuator; 6. Inspection device; 7. Moving part; 8. Spacing control mechanism; 9. Imaging component; 10. Electrolytic cell chamber; 12. Electrolytic cell end plate; 13. Tensioning screw; 14. First mounting ear hole; 15. Track end plate; 16. Second mounting ear hole; 17. Annular track; 18. Guide rod; 19. Electric telescopic rod; 20. Camera; 21. Inspection route. DETAILED DESCRIPTION

[0032] The following embodiments are used to further describe the specific embodiments of the present invention in conjunction with the accompanying drawings and examples. The following embodiments are only used to more clearly illustrate the technical solutions of the present invention and are not intended to limit the scope of protection of the present invention.

[0033] like Figure 1-7The figure shows an embodiment of a method for monitoring the external temperature of a water electrolysis hydrogen production device according to the present invention. Temperature monitoring of the electrolyzer is a key link in ensuring its efficient and safe operation. Effective temperature monitoring can help maintain optimal working conditions, improve electrolysis efficiency, and extend the life of the equipment. The external temperature of the hydrogen production device is collected by an integrated sensor 1. The collected data is collected by a data acquisition module 2 to form a historical temperature history database. The real-time monitoring data of the data acquisition module 2 can be called as a process control parameter on the hydrogen production device PLC control system 3 and stored in registers or variables within the PLC control system 3. The external temperature monitoring system of the hydrogen production device is linked to the PLC control system 3 in the process flow of water electrolysis hydrogen production to ensure efficient and stable operation of the water electrolysis hydrogen production process. This linkage control can not only optimize temperature management, but also improve the automation level and safety of the overall process.

[0034] In actual operation, the integrated sensor 1 can be designed to continuously monitor the external temperature of the hydrogen production device and store the data in the data acquisition module 2. As another embodiment, the PLC control system 3 can also be designed to send a temperature detection instruction to the data acquisition module 2, and then the data acquisition module 2 collects the external temperature data of the hydrogen production device at a fixed time and location, or follows a preset inspection route 21.

[0035] The integrated sensor 1 may be a contact temperature sensor or a non-contact temperature sensor, which specifically includes but is not limited to one or more of a thermocouple sensor, a resistance temperature detector, a thermistor sensor, an infrared thermometer, and a light temperature sensor.

[0036] The PLC control system 3 compares the monitored data with the preset temperature thresholds of the corresponding control nodes according to a preset algorithm and process flow, and sends control signals to the actuators 5 in the process flow based on the comparison results. Code is written in the PLC program to periodically read temperature values ​​from the temperature sensor and compare the corresponding temperature values ​​with a preset temperature value, which is the optimal temperature range or a specific temperature set point required for the water electrolysis hydrogen production process. A PID control algorithm is implemented using a proportional-integral-derivative (PID) control method to automatically adjust the output of the heating or cooling device of the actuator 5 based on the deviation between the actual temperature and the set temperature.

[0037] The device further comprises a human-machine interface 4 formed by a touch screen or a computer interface, which provides a user-friendly interface so that an operator can easily monitor the current temperature status, modify the set point, and view alarm information.

[0038] Process control personnel can access and view the external temperature curve of the hydrogen production unit, read PLC alarm records, or perform real-time temperature monitoring at designated locations outside the hydrogen production unit through the human-computer interface 4. The PLC can record temperature data and other relevant process parameters for subsequent analysis and optimization. A graphical interface displays temperature trends over time, helping operators better understand process status. Furthermore, a safety and alarm mechanism is included. When the infrared thermometer compares the temperature to a preset threshold, if it exceeds the preset temperature, the PLC control system 3 generates a high-temperature warning signal and emits an audible and visual alarm, prompting process control personnel to take timely action.

[0039] The human-machine interface 4, via a network connection, allows process control personnel to remotely monitor and control the external temperature of the hydrogen production unit. This network connection facilitates remote measurement by process control personnel. Furthermore, to enhance system reliability and safety, the integrated sensor 1 is redundant. This increases the number of temperature sensors installed, allowing them to serve as a reference. Installing redundant integrated sensors 1 outside the hydrogen production unit improves the reliability of external temperature monitoring. If a faulty integrated sensor 1 at one location generates a false alarm, a nearby redundant integrated sensor 1 can be used as a reference to avoid misjudgment.

[0040] As an embodiment of a non-contact integrated sensor 1, the integrated sensor 1 includes at least one infrared thermometer, the data acquisition module 2 includes an infrared temperature measurement host, the infrared temperature measurement host is connected to the infrared thermometer component, the infrared thermometer is arranged on the inspection device 6 for receiving the detection control instructions sent by the infrared temperature measurement host, the infrared temperature measurement host converts the infrared radiation field energy emitted from the surface of the electrolytic cell into an array image signal and transmits the signal to the PLC control system 3 to form a temperature field thermal image for the human-computer interaction interface 4 to call and display.

[0041] When automatically detecting or monitoring the external temperature of a water electrolysis hydrogen production device, the temperature measurement range includes the filter press water electrolyzer body, the surface of the alkali solution inlet pipe, the surface of the electrolyzer gas outlet pipe, and the surface of the cable connecting the electrolyzer. The inspection device 6 is modularly and independently arranged on the hydrogen production device. Since the filter press water electrolyzer body is basically cylindrical and has an alkali solution inlet pipe, an electrolyzer gas outlet pipe, and a cable connecting the electrodes at its ends, when monitoring the external temperature, taking the filter press water electrolyzer body as an example, when monitoring the temperature on one side, the other side is the back. If a non-contact integrated sensor 1 is used, multiple sensors need to be installed to form a surrounding arrangement around the electrolyzer body, thereby achieving temperature monitoring without blind spots. As for the monitoring of the surface of the alkali liquid inlet pipe, the surface of the electrolytic cell outlet pipe, and the surface of the cable connecting the electrolytic cell, since they are usually arranged at one end of the electrolytic cell, it is easy to cause mutual obstruction. For example, when a non-contact integrated sensor 1 is used for temperature monitoring from the outside, it will first collect the temperature of the external device, and the temperature monitoring of the device blocked on the inside is inconvenient, which makes it inconvenient to perform targeted external temperature detection on a certain component.

[0042] As a preferred solution for automatic detection of water electrolysis hydrogen production device, the integrated sensor 1 is arranged on an inspection device 6 that can control its movement along a preset external temperature inspection route 21. The inspection device 6 is provided with a moving part 7, and the moving part 7 is used to install the integrated sensor 1. The inspection device 6 drives the moving part 7 to move to form an external surround detection of the electrolysis hydrogen production device.

[0043] The modular inspection device 6 includes a track end plate 15 arranged at both ends of the cylindrical hydrogen production device. In this embodiment, the filter press water electrolyzer body is taken as an example. The filter press water electrolyzer includes a plurality of stacked electrolytic cell chambers 10. The electrolytic cell chambers 10 at the two ends of the outermost ends are assembled through the electrolytic cell end plates 12. The electrolytic cell end plates 12 at both ends are circumferentially penetrated by tightening screws 13, thereby forming a filter press water electrolyzer similar to a cylindrical shape composed of a plurality of stacked electrolytic cell chambers 10. In order to facilitate the installation of the modular inspection device 6, a first mounting ear hole 14 is provided on the outer periphery of the electrolytic cell end plate 12, and a second mounting ear hole 16 that matches the first mounting ear hole 14 is provided on the inner ring of the track end plate 15. An annular end surface of one side of the track end plate 15 is provided. Track 17, two track end plates 15 are close to each other and annular tracks 17 are arranged relative to each other on one side end surface. An axial guide rod 18 is set between the two annular tracks 17, and the movable part 7 is arranged on the axial guide rod 18. It can be understood that the track end plate 15 is fixedly set on the filter press water electrolyzer body, and a circumferential operation driving part that drives the axial guide rod 18 to rotate around the axis of the filter press water electrolyzer body is set on the two track end plates 15. When the guide rod 18 rotates around the axis, the movable part 7 can be rotated around the axis of the electrolyzer. Specifically, a planetary gear structure can be used as a circumferential operation driving part that drives one end of the guide rod 18 to rotate around the axis. During specific implementation, the planetary gear structures at both ends should maintain synchronous action, thereby controlling the guide rod 18 to rotate around the axis.

[0044] Furthermore, the movable part 7 is also configured to move along the axial direction of the guide rod 18, and the inspection device 6 is also provided with an axial movement drive part for driving the movable part 7 to move axially; specifically, the axial movement drive part can adopt a principle similar to that of a linear motor, and use the movable part 7 as the movable part 7 of the linear motor, thereby controlling the integrated sensor 1 installed on the movable part 7 to move to the desired axial position.

[0045] As an embodiment of the inspection route 21, it moves in a spiral line from one end of the hydrogen production device to the other end; during actual control, the circumferential operation drive unit controls the guide rod 18 to perform a circular motion, and at the same time the axial movement drive unit also controls the moving part 7 to move along the axial direction, so that the integrated sensor 1 forms a full-coverage inspection route 21 that surrounds the outer periphery of the filter press water electrolyzer body like a spiral line.

[0046] As another embodiment, the movable part 7 moves axially between the two ends of the hydrogen production device and moves circumferentially around the hydrogen production device to form a continuous zigzag route between the two ends of the hydrogen production device; the structure of the inspection device 6 in this embodiment is the same as that of the aforementioned embodiment, the difference lies in the control method of the movable part 7. Specifically, the axial movement drive part first controls the movable part 7 to move along the axial direction, so that the integrated sensor 1 provided thereon passes through the outside of each electrolytic cell chamber 10 in turn and collects temperature data. When the movable part 7 moves from one end to the other end, the axial movement drive part stops moving; then the circumferential operation drive part is activated to rotate the guide rod 18 around the axis by a certain angle, and then the circumferential operation drive part stops moving, and then switches to the axial movement drive part to move the movable part 7 to the other end. Repeated switching operations make the movable part 7 form a continuous zigzag route that moves axially and circumferentially around the hydrogen production device.

[0047] The implementation methods of the above-mentioned two inspection devices 6 are both to control a guide rod 18 and a moving part 7, so that the integrated sensor 1 forms different inspection routes 21. As a third embodiment, the inspection route 21 in this embodiment is a multi-ring route formed by the multi-point detection point moving around the hydrogen production device; specifically, in this embodiment, a circumferential operation drive part is provided, and the circumferential operation drive part controls the guide rod 18 to rotate around the axis. The difference is that, in this embodiment, multiple integrated sensors 1 are evenly spaced on the guide rod 18, and each integrated sensor 1 detects the external temperature around a specific position. Multiple integrated sensors 1 are simultaneously driven by the guide rod 18 to rotate around the axis to form a multi-ring inspection route 21.

[0048] As a fourth embodiment, the inspection route 21 is a route that fully covers the periphery of the hydrogen production device, formed by multiple detection points moving along the axial direction of the hydrogen production device. As a preferred embodiment, this embodiment has a relatively simple structure and does not require a large number of integrated sensors 1. A small number of integrated sensors 1, such as three or four, are arranged around the periphery of the filter press water electrolyzer body and control the axial movement of the integrated sensors 1 to form a fully covered inspection route 21. Specifically, this embodiment eliminates the provision of a circumferentially rotating drive unit, and can only provide an axially movable drive unit. In this embodiment, the ends of the guide rod 18 are not disposed within the annular track 17, but are instead directly mounted on the first mounting ear holes 14. The four first mounting ear holes 14 shown in the figure correspond to four guide rods 18, each of which is provided with an integrated sensor 1. The horizontal detection angle range of each integrated sensor 1 can be set to be no less than 90°, thereby enabling the four integrated sensors 1 to fully cover the exterior of the hydrogen production device. Alternatively, three guide rods 18 can be provided. In this case, the horizontal detection angle range of each integrated sensor 1 is no less than 120°, ensuring full coverage. This configuration can be selected based on specific implementation circumstances. Similarly, the axial movement drive controls the axial movement of the movable portion 7 on each guide rod 18, coordinating with the scanning angle range of each integrated sensor 1. This ensures that the axially moving inspection route 21 of the multiple integrated sensors 1 fully covers the perimeter of the hydrogen production device.

[0049] Furthermore, in the first two embodiments of the inspection route 21, a non-contact integrated sensor 1 can be used to monitor the external temperature. However, when a contact sensor is applied to the above scenario, since the axial and circumferential movement is not convenient for contact temperature data collection, as an adaptive improvement, the inspection device 6 includes a spacing control mechanism 8 for controlling the distance between the integrated sensor 1 and the surface of the hydrogen production device. In this embodiment, the spacing control mechanism 8 can adopt an electric telescopic rod 19 structure. The root of the electric telescopic rod 19 is fixed to the movable part 7, and the integrated sensor 1 is provided at its free end. The spacing control mechanism 8 is provided on the end surface of the movable part 7 facing the hydrogen production device. The integrated sensor 1 is controlled by the telescopic movement of the electric telescopic rod 19 to be attached to the outside of the hydrogen production device for temperature collection. It can be understood that at this time, the movable part 7 should be controlled by the axial movement drive unit and the circumferential operation drive unit to perform jogging. After the movable part 7 moves to the temperature collection position, the axial movement drive unit and the circumferential operation drive unit stop moving, and then the electric telescopic rod 19 in the spacing control mechanism 8 is extended, so that the integrated sensor 1 provided at its end is attached to the outer surface of the hydrogen production device for external temperature measurement. As an improvement, the spacing control mechanism 8 is also integrated with an imaging component 9, which can be set as a camera 20. The imaging component 9 monitors the moving position of the integrated sensor 1, and can also facilitate the observation of the actual situation of the surface of the hydrogen production device. The surface state of the hydrogen production device is collected to form an image and transmitted in the form of data to a register or variable that can be called by the PLC control system 3, so that the process operator can remotely observe the appearance of a specific position; in actual use, a pressure sensor can be set at the telescopic end of the electric telescopic rod 19. When the integrated sensor 1 is attached to the surface of the hydrogen production device, the pressure sensor will sense the increase in pressure. When the pressure increases to a certain level, the electric telescopic rod 19 is controlled to stop moving, thereby maintaining a better pressure fit between the integrated sensor 1 and the surface of the hydrogen production device, which is convenient for temperature monitoring.

[0050] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A device for monitoring the external temperature of a water electrolysis hydrogen production device, characterized in that: Data on the external temperature of the hydrogen production device is collected by an integrated sensor. The integrated sensor is mounted on a patrol device that can be controlled to move along a preset external temperature patrol route. The patrol device is provided with a moving portion for mounting the integrated sensor. The patrol device drives the moving portion to move to perform a surround detection of the exterior of the electrolytic hydrogen production device. The inspection device includes a track end plate arranged at both ends of the cylindrical hydrogen production device, the inner circle of the track end plate is provided with a second mounting ear hole matching the first mounting ear hole, a circular track is provided on one end surface of the track end plate, and the two track end plates are close to each other and the circular tracks are arranged opposite to each other on one end surface, an axial guide rod is set between the two circular tracks, and the moving part is arranged on the axial guide rod.

2. The external temperature monitoring device of a water electrolysis hydrogen production device according to claim 1, characterized in that: A circumferential operation driving part is provided on the two track end plates, which drives the guide rod to rotate around the axis of the filter press water electrolyzer body. The moving part is also arranged to move along the axis of the guide rod. The inspection device is also provided with an axial movement driving part which drives the moving part to move axially.

3. The external temperature monitoring device of a water electrolysis hydrogen production device according to claim 2, characterized in that: The integrated sensor is one or more of a thermocouple sensor, a resistance temperature detector, a thermistor sensor, an infrared thermometer, and a light temperature sensor.

4. The external temperature monitoring device of a water electrolysis hydrogen production device according to claim 1, characterized in that: The hydrogen production device includes a filter press water electrolyzer body, an alkali solution inlet pipe surface, an electrolyzer gas outlet pipe surface, and a cable surface connecting the electrolyzer. The inspection device is modularly and independently arranged on the hydrogen production device.

5. The external temperature monitoring device of a water electrolysis hydrogen production device according to claim 2, characterized in that: A guide rod is provided between the track end plates on both sides. The guide rod is parallel to the axis of the hydrogen production device, and a moving part is provided on the guide rod.

6. The external temperature monitoring device of a water electrolysis hydrogen production device according to claim 5, characterized in that: The inspection route moves from one end of the hydrogen production device to the other end in a spiral shape around the hydrogen production device.

7. The external temperature monitoring device of a water electrolysis hydrogen production device according to claim 5, characterized in that: The inspection route moves axially between the two ends of the hydrogen production device and moves circumferentially around the hydrogen production device to form a continuous return route between the two ends of the hydrogen production device.

8. The external temperature monitoring device of a water electrolysis hydrogen production device according to claim 2, characterized in that: A guide rod is arranged between the track end plates on both sides. The guide rod is parallel to the axis of the hydrogen production device. The guide rod is controlled by the circumferential operation drive unit to rotate around the axis. A plurality of moving parts are arranged on the guide rod, and the plurality of moving parts are evenly spaced. The inspection route is a multi-ring route formed by the multi-point detection points moving around the hydrogen production device.

9. The external temperature monitoring device of a water electrolysis hydrogen production device according to claim 2, characterized in that: A guide rod is provided between the first mounting ear holes at both ends of the hydrogen production device. The guide rod is arranged parallel to the axis of the hydrogen production device. At least three guide rods are distributed circumferentially around the hydrogen production device. Each guide rod is provided with a moving part. The moving part is moved axially by an axial movement driving part. The integrated sensors on the multiple circumferentially arranged moving parts detect the axial movement of the hydrogen production device to form a route that fully covers the outer periphery of the hydrogen production device; the integrated sensors have an angular detection range of not less than 90° in the horizontal direction.

10. The external temperature monitoring device of a water electrolysis hydrogen production device according to claim 2, characterized in that: The inspection device includes a spacing control mechanism that controls the distance between the integrated sensor and the surface of the hydrogen production device. The spacing control mechanism is arranged on the end surface of the moving part facing the hydrogen production device. The spacing control mechanism is also integrated with an imaging component that monitors the moving position of the integrated sensor.

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