一种碱性水电解槽安全运行控制装置

Abstract

本实用新型公开了及一种碱性水电解槽安全运行控制装置，包括在碱性水电解槽上设置能够监测极板沿径向一侧凸出量的凸出量监测仪器，以用于监测所述极板的径向变形移位，并提供电解槽安全运行控制信号来源。本实用新型提供一种能实时、精确监测碱性水电解槽运行过程中极板凸出距离（凸出量），并在凸出量超过安全阈值时自动触发报警或安全连锁动作（如降负荷、停机）的方法及装置，以预防密封失效、泄漏、结构破坏等严重事故，保障设备安全和稳定运行，提高碱性水电解槽的使用寿命。

Claims

1. A device for safe operation control of an alkaline water electrolyzer, characterized by, The device includes a protrusion monitoring instrument installed on an alkaline water electrolyzer, capable of monitoring the amount of protrusion of the electrode plate along one radial side, and the protrusion monitoring instrument is connected to the control system of the alkaline water electrolyzer.

2. A device for safe operation control of an alkaline water electrolyzer according to claim 1, characterized in that, The protrusion monitoring instrument includes one or more monitoring sensors selected from infrared ranging sensors, laser ranging sensors, ultrasonic ranging sensors, and radar ranging sensors.

3. A device for safe operation control of an alkaline water electrolyzer according to claim 1, characterized in that, The protrusion monitoring instrument uses a limit switch, proximity switch, or other instrument that can be used to measure the protrusion of the electrode plate.

4. A device for safe operation control of an alkaline water electrolyzer according to claim 3, characterized in that, When the protrusion monitoring instrument uses a limit switch or a proximity switch, the contact of the limit switch or the sensing head of the proximity switch is located near the outer edge of the electrode plate.

5. A device for safe operation control of an alkaline water electrolyzer according to claim 2, characterized in that, Multiple monitoring sensors are installed on the alkaline water electrolyzer at circumferential intervals near the contact points between the end pressure plate and the end electrode plate, thereby forming a circumferentially arranged monitoring sensor array. In the circumferentially arranged monitoring sensor array, the extension line of the probe center axis of each monitoring sensor is parallel to the axial direction of the alkaline water electrolyzer and close to the outer edge surface of the electrode plate.

6. The device for safe operation control of an alkaline water electrolyzer according to claim 5, characterized in that, A sensor mounting bracket is provided at the contact point between the end pressure plate and the end electrode plate on the alkaline water electrolysis cell, and the monitoring sensor is mounted on the sensor mounting bracket.

7. A device for safe operation control of an alkaline water electrolyzer according to claim 6, characterized by, The outer edge of the end plate has a local recess near the monitoring sensor to avoid the monitoring sensor, so that after the monitoring sensor is installed, the extension line of the probe center axis of the monitoring sensor is close to the outer edge surface of the end plate.

8. A device for safe operation control of an alkaline water electrolyzer according to claim 5, characterized in that, A sensor mounting hole is provided on the end plate of the alkaline water electrolysis cell, and the monitoring sensor is installed on the sensor mounting hole of the end plate.

9. A device for safe operation control of an alkaline water electrolyzer according to claim 2, characterized by, Multiple monitoring sensors are installed on one side of the alkaline water electrolysis cell in an axial arrangement and spaced apart along the axial direction to form an axially arranged monitoring sensor array; the probe of each monitoring sensor in the axially arranged monitoring sensor array points to the outer edge surface of the electrode plate at the corresponding position.

10. The device for safe operation control of an alkaline water electrolyzer according to claim 9, characterized in that, The axially arranged monitoring sensor array includes a long strip substrate disposed on one side of the alkaline water electrolyzer and parallel to the axis of the alkaline water electrolyzer, and a number of monitoring sensors disposed at intervals along the axis of the alkaline water electrolyzer on the long strip substrate, with the probe of each monitoring sensor pointing to the outer edge surface of the electrode plate at the corresponding position.

11. A device for safe operation control of an alkaline water electrolyzer according to claim 10, characterized by, The axially arranged monitoring sensor array is further equipped with an electrode axial displacement monitoring compensator for adaptively displacing the electrode plates along the axial direction due to thermal expansion and contraction in the alkaline water electrolyzer. The electrode axial displacement monitoring compensator includes a slide rail disposed on the elongated substrate and a number of sliders movably disposed on the slide rail. Each monitoring sensor is mounted on the slider, and a tension spring is connected between adjacent sliders. At the same time, a pair of electrode axial displacement compensation brackets are fixed on the end pressure plates at both ends of the alkaline water electrolyzer, and the sliders located at both ends of the slide rail are correspondingly connected to the pair of electrode axial displacement compensation brackets.

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