Experimental platform for testing electrolysis cell

Abstract

The invention discloses an electrolysis cell test experiment platform, which comprises an inspection rack, and the inspection rack is provided with a locking system used for fixing and pressing a to-be-detected electrolysis cell; the power supply module is used for supplying power to the electrolysis cell to be detected, and the electrolyte is decomposed into hydrogen and oxygen in the electrolysis cell; the separation module is used for separating the hydrogen, the oxygen and the electrolytic solution discharged from the electrolysis cell to be detected and enabling the separated electrolyte to flow back to the electrolysis cell; the auxiliary module is used for providing electrolyte for the electrolysis cell to be detected and supplementing water into the separation module, and the auxiliary module is further used for storing hydrogen and providing cooling in the hydrogen production process; and the detection module is used for measuring working parameters of the electrolysis cell to be detected. The problems of high energy consumption, large alkali liquor pollution amount and low polar plate replacement efficiency caused by the fact that an existing electrolytic cell detection and evaluation system can only detect the whole electrolytic cell can be solved.

Description

Technical Field

[0001] The present invention relates to the technical field of hydrogen production by alkaline water. More specifically, the present invention relates to an electrolytic cell test experimental platform. Background Art

[0002] Hydrogen production by electrolyzing water is an important method for producing green hydrogen. The increase in the scale of hydrogen production by electrolyzing water has also rapidly increased the electrolytic cell market. In the equipment for hydrogen production by electrolyzing water, the electrolytic cell is one of the most important components in the whole device, which is composed of electrode plates, diaphragms, insulating seals, clamping devices and other accessories. The performance and quality of the electrolytic cell are important factors for hydrogen production.

[0003] In order to detect the performance of the electrolytic cell and make a comprehensive evaluation, an electrolytic cell detection and evaluation system is used to detect the performance of the electrolytic cell. However, when the existing electrolytic cell detection and evaluation system is detecting, the electrolytic cell is directly fixed to the test bench. The electrolytic cell is composed of multiple small cells, and the performance of each small cell is the same. If the performance of the whole electrolytic cell is detected, the test process has high energy consumption, a large amount of alkaline solution pollution, and low efficiency of electrode plate replacement. Therefore, it is necessary to establish an experimental platform suitable for the test of electrolytic small cells, which can not only detect the performance of the electrolytic cell and make a comprehensive evaluation, but also avoid high energy consumption and large pollution. Summary of the Invention

[0004] Another object of the present invention is to provide an electrolytic cell test experimental platform, which solves the problems of high energy consumption, large amount of alkaline solution pollution, and low efficiency of electrode plate replacement caused by the existing electrolytic cell detection and evaluation system that can only detect the whole electrolytic cell.

[0005] In order to achieve these objects and other advantages according to the present invention, there is provided an electrolytic cell test experimental platform, including a test bench, and the test bench is provided with: A locking system, which is used to fix and press the electrolytic small cell to be detected; A power supply module, which is used to supply power to the electrolytic small cell to be detected, and the electrolyte is decomposed into hydrogen and oxygen in the electrolytic small cell; A separation module, which is used to separate the hydrogen, oxygen and electrolytic solution discharged from the electrolytic small cell to be detected, and make the separated electrolyte flow back to the electrolytic small cell; An auxiliary module, which is used to provide electrolyte to the electrolytic small cell to be detected and make up water to the separation module. The auxiliary module is also used to store hydrogen and provide cooling during the hydrogen production process; A detection module, which is used to measure the working parameters of the electrolytic small cell to be detected.

[0006] Preferably, the locking system includes: A fixed end plate, a movable end plate and a cross beam are arranged side by side in sequence. The electrolysis cell is located between the fixed end plate and the movable end plate. Legs are provided at the bottoms of the fixed end plate and the cross beam. Two large beams are arranged oppositely. The two sides of the fixed end plate and the cross beam are respectively fixedly connected into one body through the two large beams. A guide rail is provided on any one of the large beams. The two ends of the movable end plate are slidably arranged on the two guide rails. A hydraulic cylinder is arranged on the cross beam. The piston rod of the hydraulic cylinder passes through the cross beam and is connected to the movable end plate. The movable end plate is pushed by the hydraulic cylinder to move so as to compress the electrolysis cell.

[0007] Preferably, the two ends of the electrolysis cell are respectively slidably arranged on the two guide rails.

[0008] Preferably, the locking system further includes two separating mechanisms which are arranged oppositely on the outer sides of the two large beams. Any one of the separating mechanisms includes a movable end plate pull rod arm and a fixed end plate pull rod arm which are respectively fixedly connected to the corresponding sides of the movable end plate and the fixed end plate, an inner pull rod and an outer pull rod connecting the movable end plate pull rod arm and the fixed end plate pull rod arm, an inner separating arm and an outer separating arm respectively arranged on the inner pull rod and the outer pull rod. One end of the inner pull rod is fixedly connected to the fixed end plate pull rod arm, and the other end is slidably connected to the movable end plate pull rod arm relatively. One end of the outer pull rod is fixedly connected to the movable end plate pull rod arm, and the other end is slidably connected to the fixed end plate pull rod arm relatively. The inner separating arm is slidably arranged on the inner pull rod, and the outer separating arm is slidably arranged on the outer pull rod.

[0009] Preferably, one-way locking lock heads and springs are arranged in both the inner separating arm and the outer separating arm to realize the sliding or locking of the inner separating arm and the outer separating arm on the inner pull rod and the outer pull rod.

[0010] Preferably, a thread is provided on the piston rod, and a locking mechanism is arranged thereon. The locking mechanism includes a hollow shell. A lock nut is arranged inside the hollow shell. The lock nut is sleeved on the thread of the piston rod. A worm gear is sleeved on the outer periphery of the lock nut. A worm is cooperatively arranged on the worm gear. One end of the worm penetrates out of the outside of the hollow shell and is connected to a hydraulic motor. Wherein, one side of the lock nut facing the cross beam protrudes out of the outside of the hollow shell.

[0011] Preferably, stoppers are symmetrically arranged at both ends of any one of the large beams and respectively abut against the cross beam and the fixed end plate.

[0012] Preferably, a strain gauge is provided at one end of the piston rod close to the movable end, which is used to monitor the pressing force of the hydraulic cylinder on the electrolysis cell, and a displacement sensor is provided on the movable end plate, which is used to monitor the displacement of the movable end plate.

[0013] Preferably, it further includes a control cabinet, which is electrically connected to the power supply module, the separation module, the auxiliary module, the detection module, the hydraulic cylinder, the hydraulic motor, the strain gauge and the displacement sensor, and data is transmitted between them.

[0014] The present invention has at least the following beneficial effects: 1. Before the electrolytic cell is assembled, the electrolysis cell is locked by the locking system for performance testing. Compared with the existing electrolytic cell detection and evaluation system that can only detect the entire electrolytic cell, the problems of high energy consumption and large amount of alkali solution pollution are solved; 2. The test experimental platform of the present invention provides the pressing force on the electrolysis cell through the hydraulic cylinder. This pressing method provides a uniform pressing force for each single plate of the electrode plate, reduces the risk of damage to each single plate of the electrode plate, ensures the accuracy of the test results, and locks the electrolysis cell through the hydraulic cylinder. The locking process is simple and rapid, the assembly efficiency is high, and the electrode plates of different sizes and quantities can be installed, so as to realize the detection of electrolysis cells of different sizes, and can evaluate the influence of key components such as electrode plates and diaphragms of different materials and structures on the hydrogen production efficiency, which is convenient for horizontal comparison; 3. When the test experimental platform of the present invention performs performance testing on the electrolysis cell, if a faulty electrode plate is found, it is not necessary to remove the entire electrolysis cell. The faulty electrode plate can be separately separated and replaced through the separation mechanism without removing other electrode plates, reducing the maintenance cost.

[0015] Other advantages, objectives and features of the present invention will be partially reflected by the following description, and partially will be understood by those skilled in the art through the research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic structural diagram of the test experimental platform of the present invention; Figure 2 It is a schematic structural diagram of the locking system of the present invention; Figure 3 It is a schematic structural diagram of the separation mechanism of the present invention; Figure 4 It is an enlarged schematic structural diagram of the separation mechanism of the present invention; Figure 5 It is a schematic structural diagram of the locking mechanism of the present invention; Explanation of the reference numerals in the drawings: 1. Fixed end plate, 2. Movable end plate, 3. Cross beam, 4. Electrolysis cell, 5. Girder, 6. Hydraulic cylinder, 7. Piston rod, 8. Thread, 9. Locking mechanism, 91. Hollow housing, 92. Hydraulic motor, 93. Worm, 94. Worm gear, 95. Lock nut, 10. Lifting lug, 11. Stop block, 12. Leg, 13. Separation mechanism, 131. Movable end plate pull rod arm, 132. Fixed end plate pull rod arm, 133. Inner pull rod, 134. Outer pull rod, 1345. Inner separation arm, 136. Outer separation arm, 137. Lock head. Detailed implementation manner

[0017] The following further describes the present invention in detail with reference to the drawings, so that those skilled in the art can implement it according to the description in the specification.

[0018] It should be noted that in the description of the present invention, the orientation or positional relationship indicated by the terms "horizontal", "longitudinal", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0019] In order to solve the problems in the background technology, before the electrolytic cell is assembled, one of the electrolysis cells is detected by using the electrolysis cell test experiment platform of the present invention, so as to solve the problems of high energy consumption, large amount of alkali solution pollution, and low efficiency of plate replacement caused by the existing electrolytic cell detection and evaluation system that can only detect the entire electrolytic cell.

[0020] As Figure 1 shown, the present invention provides an electrolysis cell test experiment platform, including an inspection bench, and the inspection bench is provided with: A locking system, which is used to fix and compress the electrolysis cell 4 to be detected; A power supply module, which is used to supply power to the electrolysis cell 4 to be detected, and the electrolyte is decomposed into hydrogen and oxygen in the electrolysis cell 4; A separation module, which is used to separate the hydrogen, oxygen and electrolytic solution discharged from the electrolysis cell 4 to be detected, and make the separated electrolyte flow back into the electrolysis cell 4; An auxiliary module, which is used to supply electrolyte to the electrolysis cell 4 to be detected and replenish water to the separation module. The auxiliary module is also used to store hydrogen and provide cooling during the hydrogen production process; A detection module, which is used to measure the working parameters of the electrolysis cell 4 to be detected.

[0021] In the above technical solution, the test bench is used to fix and install the test experiment platform; for hydrogen production by electrolyzing water, direct current is introduced into the electrolysis cell 4 filled with electrolyte, and water molecules undergo electrochemical reactions on the electrodes to decompose into hydrogen and oxygen. After the electrolysis cell 4 is fixed and pressed through the locking system, direct current is provided to the electrolysis cell 4 through the power supply module to decompose the electrolyte into hydrogen and oxygen. The separation module includes a separator and a scrubber. After the hydrogen, oxygen, and electrolytic solution discharged from the electrolysis cell 4 are separated by the separator, oxygen is directly released, and hydrogen is recovered through the scrubber after being washed and cooled by the auxiliary module. The auxiliary module also replenishes water into the scrubber. The replenished water enters the separator and mixes with the electrolyte, and then returns to the electrolysis cell 4 through cooling circulation. The auxiliary module includes a water and alkali tank, a water replenishing pump, a chiller, and a buffer tank. The water and alkali tank provides electrolyte to the electrolysis cell 4 and replenishes water into the scrubber through the water replenishing pump. The chiller is used to provide cooling to the separation module during the hydrogen production process, and the buffer tank is used to store hydrogen; the detection module is an integration of electrical components such as an oxygen-in-hydrogen analyzer, a hydrogen-in-oxygen analyzer, a hydrogen gas detector, a pressure transmitter, a temperature sensor, and a flow meter, and is used to detect multiple parameters such as voltage, current, power consumption, current density, and gas production during the hydrogen production process to obtain the performance parameters of the electrolysis cell 4; the present invention fixes the electrolysis cell 4 through the locking system to facilitate subsequent performance detection, and solves the problems of high energy consumption and large amount of alkali solution pollution caused by the existing electrolytic cell detection and evaluation system that can only detect the entire electrolytic cell.

[0022] In another technical solution, the locking system includes: A fixed end plate 1, a movable end plate 2, and a cross beam 3, which are arranged side by side in sequence. The electrolysis cell 4 is located between the fixed end plate 1 and the movable end plate 2. Legs 12 are provided at the bottoms of the fixed end plate 1 and the cross beam 3; Two girders 5, which are arranged oppositely. The two sides of the fixed end plate 1 and the cross beam 3 are respectively fixedly connected into one body through the two girders 5. A guide rail is provided on any one of the girders 5, and the two ends of the movable end plate 2 are slidably arranged on the two guide rails; A hydraulic cylinder 6, which is provided on the cross beam 3. The piston rod 7 of the hydraulic cylinder 6 passes through the cross beam 3 and is connected to the movable end plate 2. The movable end plate 2 is pushed by the hydraulic cylinder 6 to move so as to press the electrolysis cell 4.

[0023] In this technical solution, as Figure 2As shown in the figure, the locking system is mounted on the inspection bench through the legs 12 provided at the bottom of the fixed end plate 1 and the cross beam 3. The fixed end plate 1 and the cross beam 3 are fixedly arranged on two large beams 5 to form the skeleton structure of the locking system. Both sides of the movable end plate 2 are respectively slidably arranged on the guide rails of the two large beams 5 through two sliders. A hydraulic cylinder 6 is fixedly installed on the cross beam 3. The piston rod 7 of the hydraulic cylinder 6 passes through the cross beam 3 and is fixedly connected to the movable end plate 2. The electrolysis cell 4 is installed between the movable end plate 2 and the fixed end plate 1. Under the thrust of the hydraulic cylinder 6, the piston rod 7 drives the movable end plate 2 to move towards the fixed end plate 1, and cooperates with the fixed end plate 1 to tightly press the electrolysis cell 4, so as to achieve the purpose of fixing the electrolysis cell 4 on the inspection bench. The hydraulic cylinder 6 is provided with the driving hydraulic oil required for operation by a hydraulic station; the test experiment platform of the present invention provides a pressing force on the electrolysis cell 4 through the hydraulic cylinder 6. This pressing method provides a uniform pressing force for each single plate of the electrode plate, reduces the risk of damage to each single plate of the electrode plate, ensures the accuracy of the test results, and locks the electrolysis cell 4 through the hydraulic cylinder 6. The locking process is simple and rapid, the assembly efficiency is high, and different sizes and numbers of electrode plates can be installed, so as to realize the detection of electrolysis cells 4 of different sizes, and can evaluate the influence of key components such as electrode plates and diaphragms of different materials and structures on the hydrogen production efficiency, which is convenient for horizontal comparison.

[0024] In another technical solution, both ends of the electrolysis cell 4 are respectively slidably arranged on the two guide rails.

[0025] In this technical solution, lifting lugs 10 are arranged on both sides of several insert-type single electrode plates included in the electrolysis cell 4. The electrolysis cell 4 is slidably connected to the guide rails of the large beam 5 through the lifting lugs 10, which is convenient for movement when being pressed by the hydraulic cylinder 6.

[0026] In another technical solution, the locking system further includes two separating mechanisms 13, which are oppositely arranged on the outer sides of the two large beams 5. Any one of the separating mechanisms 13 includes a movable end plate pull rod arm 131 and a fixed end plate pull rod arm 132 respectively fixedly connected to the corresponding sides of the movable end plate 2 and the fixed end plate 1, an inner pull rod 133 and an outer pull rod 134 connecting the movable end plate pull rod arm 131 and the fixed end plate pull rod arm 132, and an inner separating arm 135 and an outer separating arm 136 respectively arranged on the inner pull rod 133 and the outer pull rod 134; one end of the inner pull rod 133 is fixedly connected to the fixed end plate pull rod arm 132, and the other end is relatively slidably connected to the movable end plate pull rod arm 131; one end of the outer pull rod 134 is fixedly connected to the movable end plate pull rod arm 131, and the other end is relatively slidably connected to the fixed end plate pull rod arm 132; the inner separating arm 135 is slidably arranged on the inner pull rod 133, and the outer separating arm 136 is slidably arranged on the outer pull rod 134; One-way locking lock heads 137 and springs are provided in both the inner separation arm 135 and the outer separation arm 136 to enable the inner separation arm 135 and the outer separation arm 136 to slide or lock onto the inner pull rod 133 and the outer pull rod 134.

[0027] In this technical solution, the electrolytic cell 4 is composed of a number of single plates connected in series. The single plates are pressed and locked by a hydraulic cylinder 6. When a single plate fails, it needs to be replaced. The faulty plate needs to be separated from the plates on both sides to achieve the replacement of the faulty plate. The movable end plate pull rod arm 131 is installed on both sides of the movable end plate 2, and the fixed end plate pull rod arm 132 is installed on both sides of the fixed end plate 1. One end of the inner pull rod 133 is fixedly connected to the fixed end plate pull rod arm 132, and the other end is slidable relative to the movable end plate pull rod arm 131. One end of the outer pull rod 134 is fixedly connected to the movable end plate pull rod arm 131, and the other end is slidable relative to the fixed end plate pull rod arm 132. The inner separation arm 135 is installed on the inner pull rod 133 and can slide axially relative to the inner pull rod 133. The outer separation arm 136 is installed on the outer pull rod 134 and can slide axially relative to the outer pull rod 134. One-way locking lock heads 137 and springs are installed in both the inner separation arm 135 and the outer separation arm 136.

[0028] During the locking process of the electrolytic cell 4, such as Figure 5As shown, the inner separation arm 135 and the outer separation arm 136 are not connected to the single plate of the electrode in the electrolysis cell 4, which does not affect the locking action. When a single plate of the electrode fails and needs to be replaced, the inner separation arm 135 and the outer separation arm 136 are respectively connected to the corresponding single plate of the electrode. The detachable connection can be achieved through the tooling block and bolts. The right side of this application refers to the side of the fixed end plate 1. Among them, the inner separation arm 135 is connected to the right electrode plate of the faulty electrode, and the outer separation arm 136 is connected to the left electrode plate of the faulty electrode. The inner lock head 137 in the separation arm falls into the lock groove on the pull rod under the action of the spring pressure. The inner separation arm 135 cannot move to the right, and the outer separation arm 136 cannot move to the left. When the movable end plate 2 moves to the left driven by the piston rod 7, the movable end plate pull rod arm 131 pulls the outer pull rod 134 to move to the left together, thereby driving the left electrode plate of the faulty electrode to move towards the cross beam 3 side. The right electrode plate of the faulty electrode is connected to the inner separation arm 135 and does not generate displacement through the pull rod and the fixed end plate pull rod arm 132. Through the movement of the left electrode plate of the faulty electrode, the separation of the faulty electrode from other electrodes is realized, and further maintenance of the faulty electrode can be completed. The lock head 137 can be set as a lock pin, on which a spring is sleeved. Through the rotation of the lock pin rod, the lock pin slides or locks the inner separation arm 135 and the outer separation arm 136 on the inner pull rod 133 and the outer pull rod 134. When the test experiment platform of the present invention performs performance testing on the electrolysis cell 4, if a faulty electrode is found, it is not necessary to completely remove the electrolysis cell 4. Through the separation mechanism 13, the faulty electrode can be separately separated and replaced without removing other electrodes, reducing the maintenance cost.

[0029] In another technical solution, a thread 8 is provided on the piston rod 7, and a locking mechanism 9 is provided thereon. The locking mechanism 9 includes a hollow housing 91. A lock nut 95 is arranged inside the hollow housing 91. The lock nut 95 is sleeved on the thread 8 of the piston rod 7. A worm gear 94 is sleeved on the outer periphery of the lock nut 95. A worm 93 is cooperatively arranged on the worm gear 94. One end of the worm 93 passes through the outside of the hollow housing 91 and is connected to a hydraulic motor 92. Among them, one side of the lock nut 95 facing the cross beam 3 protrudes outside the hollow housing 91.

[0030] In this technical solution, after the hydraulic cylinder 6 is tightened and locked, the pressure is generally not directly maintained by the hydraulic oil. In addition, the hydraulic oil may leak or release pressure. For example, the sealing ring, valve, etc. are damaged, resulting in a reduction in the pressing force and pressure relief. Therefore, by setting the locking mechanism 9, mechanical locking is achieved after the pressing is completed. As Figure 3 、 Figure 4As shown, the surface of the piston rod 7 is processed with a thread 8, and the thread 8 cooperates with the locking mechanism 9. The locking mechanism 9 can reciprocate along the axial direction of the piston rod 7 through the thread 8. When the piston rod 7 moves forward and is tightened, the locking mechanism 9 moves forward together. When the locking mechanism 9 is basically in contact with the side of the crossbeam 3, even if the pressure is released and the piston rod 7 retracts, it cannot rotate on the thread 8 of the piston rod 7 due to the obstruction of the locking mechanism 9, thereby blocking the retraction of the piston rod 7 and avoiding the removal of the pressing force.

[0031] The hydraulic motor 92 drives the worm 93 to rotate, driving the worm wheel 94 to rotate. The worm wheel 94 is fixed with the lock nut 95, and the lock nut 95 is connected with the piston rod 7 thread 8. The lock nut 95 can realize rotating movement on the piston rod 7, and stops when it moves close to the cross beam 3. The hydraulic cylinder 6 can release pressure, and the piston rod 7 will not retract when it is locked. The contact between the lock nut 95 and the cross beam 3 realizes the compression force state required for locking the electrolytic cell. The end face of the lock nut 95 protrudes outside the hollow shell 91 of the locking mechanism 9, and the hollow shell 91 does not contact the cross beam 3. A guide rod is provided between the hollow shell 91 and the cross beam 3 to guide the movement process of the locking structure.

[0032] In another technical solution, stoppers 11 are symmetrically provided at both ends of any beam 5 , which abut against the cross beam 3 and the fixed end plate 1 respectively.

[0033] In this technical solution, when the piston rod 7 pushes the movable end plate 2 to move, the cross beam 3 will be subjected to a force toward the left, and the fixed end plate 1 will be subjected to a force toward the right. This force will be transferred to the main beam 5 through four blocks 11 on both sides and absorbed by the main beam 5, thereby ensuring the stability of the entire experimental platform during operation.

[0034] In another technical solution, a strain gauge is provided at one end of the piston rod 7 close to the movable end, which is used to monitor the clamping force of the hydraulic cylinder 6 on the electrolysis chamber 4, and a displacement sensor is provided on the movable end plate 2, which is used to monitor the displacement of the movable end plate 2.

[0035] In the present technical solution, the clamping force of the hydraulic cylinder 6 on the electrolysis chamber 4 is monitored in real time through a strain gauge, so that the on-site operator can determine whether the designed locking force has been reached, thereby controlling whether the hydraulic cylinder 6 stops working. At the same time, a displacement sensor is provided on the movable end plate 2 to detect the displacement value of the movable end plate 2 to avoid damage to the strain gauge. The displacement sensor corresponding to the movable end plate 2 can also be monitored to ensure that it does not exceed the designed displacement limit position, so as to ensure the smooth progress of the test, while also avoiding damage to the electrolysis chamber 4 due to excessive clamping force.

[0036] In another technical solution, it further includes a control cabinet, which is electrically connected to the power module, the separation module, the auxiliary module, the detection module, the hydraulic cylinder 6, the hydraulic motor 92, the strain gauge and the displacement sensor, and data is transmitted therebetween.

[0037] In this technical solution, the automatic operation of the performance test process of the electrolytic cell 4 is realized through the control cabinet to reduce the work burden of the operator, which is specifically as follows: The control cabinet is provided with a target value of the pressing force and a target value of the displacement of the movable end plate 2. When the electrolytic cell 4 is locked, the control cabinet drives the piston rod 7 of the hydraulic cylinder 6 to push the movable end plate 2 to move to cooperate with the fixed end plate 1 to press the electrolytic cell 4. During the pressing process, the control cabinet receives the data monitored by the strain gauge and the data monitored by the displacement sensor in real time and compares them with the corresponding target values. When the data transmitted by the strain gauge or the displacement sensor reaches the target value, the control cabinet controls the hydraulic cylinder 6 to stop operating. During the pressing process of the electrolytic cell 4 by the hydraulic cylinder 6, the control cabinet drives the hydraulic motor 92 to work to achieve mechanical locking after pressing is completed, and finally realizes the locking effect on the electrode chamber; during the hydrogen production process, the control cabinet also monitors the pressure, liquid level, temperature and other data in the separation module and the auxiliary module in real time. When the temperature exceeds the upper limit, the hydrogen liquid level exceeds the upper or lower limit, the oxygen liquid level exceeds the upper or lower limit, the electrolyte circulation volume exceeds the lower limit, or the water-alkali tank liquid level exceeds the lower limit during the hydrogen production process, the entire power supply is cut off.

[0038] Although the embodiments of the present invention have been disclosed as above, it is not limited to the applications listed in the specification and the embodiments. It can be fully applied to various fields suitable for the present invention. For those familiar with the field, additional modifications can be easily made. Therefore, without departing from the general concept defined by the claims and the equivalent scope, the present invention is not limited to the specific details and the illustrated and described examples here.

Claims

1. An electrolytic cell test experimental platform, including an inspection bench, characterized in that, The test bench is provided with: a locking system for fixing and pressing the electrolytic cell to be detected; a power supply module for supplying power to the electrolytic cell to be detected, and the electrolyte is decomposed into hydrogen and oxygen in the electrolytic cell; a separation module for separating hydrogen, oxygen and electrolytic solution discharged from the electrolytic cell to be detected, and returning the separated electrolyte back to the electrolytic cell; an auxiliary module for supplying electrolyte to the electrolytic cell to be detected and replenishing water to the separation module, and the auxiliary module is also used for storing hydrogen and providing cooling during the hydrogen production process; a detection module for measuring the working parameters of the electrolytic cell to be detected.

2. The electrolytic cell test experimental platform according to claim 1, wherein The locking system includes: a fixed end plate, a movable end plate and a cross beam, which are arranged side by side in sequence. The electrolytic cell is located between the fixed end plate and the movable end plate, and legs are provided at the bottoms of the fixed end plate and the cross beam; two large beams, which are arranged oppositely. The two sides of the fixed end plate and the cross beam are respectively fixedly connected into one body through the two large beams. A guide rail is provided on any one of the large beams, and the two ends of the movable end plate are slidably arranged on the two guide rails; a hydraulic cylinder, which is arranged on the cross beam. The piston rod of the hydraulic cylinder passes through the cross beam and is connected to the movable end plate. The movable end plate is pushed by the hydraulic cylinder to move so as to press the electrolytic cell.

3. The electrolytic cell test experimental platform according to claim 2, characterized in that The two ends of the electrolytic cell are respectively slidably arranged on the two guide rails.

4. The electrolytic cell test experimental platform according to claim 2, characterized in that, The locking system further includes two separation mechanisms, which are arranged oppositely on the outer sides of the two large beams. Any one of the separation mechanisms includes a movable end plate pull rod arm and a fixed end plate pull rod arm respectively fixedly connected to the corresponding sides of the movable end plate and the fixed end plate, an inner pull rod and an outer pull rod connecting the movable end plate pull rod arm and the fixed end plate pull rod arm, an inner separation arm and an outer separation arm respectively arranged on the inner pull rod and the outer pull rod; one end of the inner pull rod is fixedly connected to the fixed end plate pull rod arm, and the other end is slidably connected to the movable end plate pull rod arm; one end of the outer pull rod is fixedly connected to the movable end plate pull rod arm, and the other end is slidably connected to the fixed end plate pull rod arm; the inner separation arm is slidably arranged on the inner pull rod, and the outer separation arm is slidably arranged on the outer pull rod.

5. The electrolytic cell test experimental platform according to claim 4, characterized in that, One-way locking lock heads and springs are arranged in both the inner separation arm and the outer separation arm to enable the inner separation arm and the outer separation arm to slide or lock on the inner pull rod and the outer pull rod.

6. The electrolytic cell test experimental platform according to claim 2, characterized in that, Threads are provided on the piston rod, and a locking mechanism is arranged thereon. The locking mechanism includes a hollow housing, a lock nut is arranged inside the hollow housing, the lock nut is sleeved on the threads of the piston rod, a worm gear is sleeved on the outer periphery of the lock nut, a worm is engaged with the worm gear, and one end of the worm passes out of the outside of the hollow housing and is connected to a hydraulic motor; Wherein, one side of the lock nut facing the cross beam protrudes out of the outside of the hollow housing.

7. The electrolytic cell test experimental platform according to claim 2, characterized in that, Blocks are symmetrically arranged at both ends of any one of the large beams, and they respectively abut against the cross beam and the fixed end plate.

8. The electrolytic cell test experimental platform according to claim 6, characterized in that, One end of the piston rod close to the movable end is provided with a strain gauge for monitoring the pressing force of the hydraulic cylinder on the electrolytic cell, and a displacement sensor is arranged on the movable end plate for monitoring the displacement of the movable end plate.

9. The electrolytic cell test experimental platform according to claim 8, wherein, It further includes a control cabinet which is electrically connected to the power supply module, the separation module, the auxiliary module, the detection module, the hydraulic cylinder, the hydraulic motor, the strain gauge and the displacement sensor, and data transmission is carried out between them.

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