Electrolytic cell test platform

Abstract

The utility model discloses an electrolytic cell test platform, and relates to the technical field of electrolytic hydrogen production. The electrolytic bath test platform comprises a water tank, a preheater, a pretreatment assembly, a heating assembly and an electrolytic bath. The preheater is installed in the water tank and used for preheating electrolyzed water in the water tank, the water tank is connected with the electrolytic bath through the pretreatment assembly and the heating assembly in sequence, the pretreatment assembly is used for pretreating the electrolyzed water, the heating assembly is used for reheating the electrolyzed water, and the electrolytic bath is used for conducting electrolysis on the electrolyzed water to produce hydrogen. And the electrolytic bath is connected with the water tank and is also used for refluxing unelectrolyzed electrolyzed water to the water tank. Compared with the prior art, the electrolytic bath test platform provided by the utility model adopts the preheater arranged in the water tank and the heating assembly arranged between the pretreatment assembly and the electrolytic bath, so that secondary heating of electrolyzed water can be realized, the heating efficiency is improved, the temperature rising effect is enhanced, and the heating precision is improved; and the accuracy of performance test results is ensured.

Description

Technical Field

[0001] This utility model relates to the field of electrolytic hydrogen production technology, and more specifically, to an electrolytic cell testing platform. Background Technology

[0002] Currently, PEM (Polymer Electrolysis) for hydrogen production via water electrolysis suffers from the high cost of materials such as precious metal coatings on the membrane electrode surfaces, proton exchange membranes, electrodes, and gas-discharge polymer (GDL) electrodes. Therefore, the development of electrolyzers necessitates the use of an electrolyzer testing platform to perform performance tests on electrolyzer prototypes, including the GDL and membrane electrodes. Current electrolyzer testing platforms typically employ heating wires within the end plates (including the upper and lower end plates) of the electrolyzer. These heating wires heat the end plates, thereby raising the temperature of the water within the electrolyzer until it reaches a preset temperature. However, this two-end-to-middle heating method suffers from low efficiency, slow temperature rise, and difficulty in temperature control, resulting in poor heating precision.

[0003] Therefore, designing and manufacturing an electrolyzer testing platform with high heating efficiency and high heating accuracy is particularly important, especially in the electrolytic hydrogen production process. Utility Model Content

[0004] The purpose of this invention is to provide an electrolytic cell testing platform that can achieve secondary heating of electrolyzed water, improve heating efficiency, enhance temperature rise effect, improve heating accuracy, and ensure the accuracy of performance test results.

[0005] This utility model is achieved by the following technical solution.

[0006] An electrolytic cell testing platform includes a water tank, a preheater, a pretreatment component, a heating component, and an electrolytic cell. The preheater is installed inside the water tank and is used to preheat the electrolyzed water in the water tank. The water tank is connected to the electrolytic cell in sequence through the pretreatment component and the heating component. The pretreatment component is used to pretreat the electrolyzed water, and the heating component is used to reheat the electrolyzed water. The electrolytic cell is used to electrolyze the electrolyzed water to produce hydrogen. The electrolytic cell is connected to the water tank and is also used to return unelectrolyzed electrolyzed water to the water tank.

[0007] Optionally, the top of the water tank is provided with a water inlet and a return outlet, the water inlet being used to supply external electrolyzed water, and the return outlet being connected to the electrolytic cell; and / or, the bottom of the water tank is provided with a water outlet and a drain outlet, the water outlet being connected to the pretreatment component, and the drain outlet being used to discharge electrolyzed water.

[0008] Optionally, a liquid level sensor is installed inside the water tank to detect the liquid level of the electrolyzed water in the tank and to issue an alarm when the liquid level is lower than a preset height.

[0009] Optionally, the electrolytic cell test platform also includes a circulation pump, and the water tank, pretreatment components, heating components and electrolytic cell are connected end to end to form a circulation pipeline, with the circulation pump installed in the circulation pipeline.

[0010] Optionally, the preheater is an electric heating rod with external threads, and the water tank has a threaded hole, with the external threads engaging with the threaded hole.

[0011] Optionally, the pretreatment component includes an impurity filter and a deionization filter. The water tank is connected to the heating component in sequence through the impurity filter and the deionization filter. The impurity filter is used to remove particulate impurities from the electrolyzed water, and the deionization filter is used to remove cations from the electrolyzed water.

[0012] Optionally, the heating assembly includes a housing, a heating element, and a temperature sensor. The housing has an inlet and an outlet. The inlet is connected to the pretreatment assembly, and the outlet is connected to the electrolytic cell. The heating element and the temperature sensor are both installed in the housing, with the heating element positioned near the inlet and the temperature sensor positioned near the outlet.

[0013] Optionally, the electrolytic cell test platform also includes a cooling component and a controller. The cooling component is connected to the water tank and is used to cool the electrolyzed water in the water tank. The controller is also electrically connected to the cooling component, the preheater, and the heating component.

[0014] Optionally, the cooling assembly includes a water pump, an inlet pipe, an outlet pipe, and an air-cooled radiator. One end of the air-cooled radiator is connected to the water tank via the inlet pipe, and the other end is connected to the water tank via the outlet pipe. The water pump is installed on either the inlet pipe or the outlet pipe.

[0015] Optionally, there are multiple heating components and multiple electrolytic cells, with multiple electrolytic cells arranged side by side, and each electrolytic cell connected to a heating component.

[0016] The electrolytic cell testing platform provided by this utility model has the following beneficial effects:

[0017] The electrolytic cell testing platform provided by this utility model includes a preheater installed inside a water tank to preheat the electrolyzed water. The water tank is connected to the electrolytic cell via a pretreatment component and a heating component. The pretreatment component pre-treats the electrolyzed water, and the heating component reheats it. The electrolytic cell electrolyzes the water to produce hydrogen. The electrolytic cell is connected to the water tank and also serves to return un-electrolyzed water to the water tank. Compared to existing technologies, the electrolytic cell testing platform provided by this utility model, due to the use of a preheater installed inside the water tank and a heating component positioned between the pretreatment component and the electrolytic cell, enables secondary heating of the electrolyzed water, improving heating efficiency, enhancing temperature rise, increasing heating accuracy, and ensuring the accuracy of performance test results. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 A schematic diagram of the structure of the electrolytic cell testing platform provided in this embodiment of the utility model;

[0020] Figure 2 This is a schematic diagram of the water tank in the electrolytic cell testing platform provided in this embodiment of the utility model;

[0021] Figure 3 This is a schematic diagram of the heating assembly in the electrolytic cell testing platform provided in this embodiment of the utility model;

[0022] Figure 4 A schematic diagram of the pipeline connection of the electrolytic cell testing platform provided in this embodiment of the utility model.

[0023] Icons: 100-Electrolytic cell test platform; 110-Water tank; 111-Water inlet; 112-Return outlet; 113-Water outlet; 114-Drain outlet; 115-Level sensor; 120-Preheater; 130-Pretreatment component; 131-Impurity filter; 132-Deionization filter; 140-Heating component; 141-Shell; 142-Heating element; 143-Temperature sensor; 144-Inlet; 145-Outlet; 150-Electrolytic cell; 160-Circulation pump; 170-Circulation pipeline; 180-Cooling component; 181-Water pump; 182-Inlet pipe; 183-Outlet pipe; 184-Air-cooled radiator; 190-Controller. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0025] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0026] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0027] In the description of this utility model, it should be noted that the terms "inner," "outer," "upper," "lower," "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0028] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "connected," "installed," and "connected" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] The following detailed description of some embodiments of the present invention is provided in conjunction with the accompanying drawings. Unless otherwise specified, the features in the following embodiments can be combined with each other.

[0030] Please refer to the reference. Figures 1 to 4 This utility model embodiment provides an electrolytic cell testing platform 100 for performing performance tests on an electrolytic cell 150. It enables secondary heating of electrolyzed water, improving heating efficiency, enhancing temperature rise, increasing heating precision, and ensuring the accuracy of performance test results.

[0031] The electrolyzer test platform 100 includes a water tank 110, a preheater 120, a pretreatment component 130, a heating component 140, and an electrolyzer 150. The preheater 120 is installed inside the water tank 110 and is used to preheat the electrolyzed water in the water tank 110 to achieve initial heating of the electrolyzed water. The water tank 110 is connected to the electrolyzer 150 sequentially through the pretreatment component 130 and the heating component 140. The pretreatment component 130 is used to pretreat the electrolyzed water, and the heating component 140 is used to reheat the electrolyzed water. The electrolyzer 150 is used to electrolyze the electrolyzed water to produce hydrogen. The electrolyzer 150 is connected to the water tank 110 and is also used to return unelectrolyzed electrolyzed water to the water tank 110 to achieve the reuse of the electrolyzed water. In this way, the electrolyzed water can be preheated by the preheater 120 and reheated by the heating component 140, thereby achieving secondary heating of the electrolyzed water, improving heating efficiency, enhancing the temperature rise effect, improving heating accuracy, and ensuring the accuracy of performance test results.

[0032] It should be noted that by adding a preheater 120 inside the water tank 110, the electrolyzed water can be preheated. During the flow of the preheated electrolyzed water, some heat will be lost. Therefore, the temperature of the electrolyzed water reaching the heating component 140 is lower than the temperature of the electrolyzed water in the water tank 110, but higher than the ambient temperature. At this time, the heating component 140 is used to reheat the electrolyzed water to make the temperature of the electrolyzed water reach the preset temperature, ensuring heating accuracy. Moreover, since the initial temperature of the electrolyzed water is higher (higher than the ambient temperature) during the reheating process, the reheating time is shorter and the heating efficiency is higher. This enables rapid heating of large flow rates of electrolyzed water, meeting the flow rate requirements of the electrolysis cell 150 test.

[0033] Furthermore, the top of the water tank 110 is provided with a water inlet 111 and a return outlet 112. The water inlet 111 is used to supply external electrolyzed water to replenish the electrolyzed water. The return outlet 112 is connected to the electrolytic cell 150, and the unelectrolyzed electrolyzed water in the electrolytic cell 150 flows back to the water tank 110 through the return outlet 112. The bottom of the water tank 110 is provided with a water outlet 113 and a drain outlet 114. The water outlet 113 is connected to the pretreatment component 130, and the electrolyzed water in the water tank 110 flows to the pretreatment component 130 through the water outlet 113 for pretreatment and subsequent electrolysis. The drain outlet 114 is used to discharge the electrolyzed water to completely empty the electrolyzed water in the water tank 110, thereby facilitating inspection and maintenance.

[0034] Preferably, a liquid level sensor 115 is installed in the water tank 110. The liquid level sensor 115 is used to detect the liquid level of the electrolyzed water in the water tank 110 and to issue an alarm when the liquid level is lower than a preset height, so as to prompt the staff to add electrolyzed water to the water tank 110 through the water inlet 111.

[0035] It should be noted that the electrolytic cell test platform 100 also includes a circulation pump 160. The water tank 110, pretreatment component 130, heating component 140 and electrolytic cell 150 are connected end to end and form a circulation pipeline 170. The circulation pump 160 is installed in the circulation pipeline 170. The circulation pump 160 is used to generate negative pressure to extract the electrolyzed water in the water tank 110 and sequentially enter the electrolytic cell 150 through the pretreatment component 130 and the heating component 140. The unelectrolyzed electrolyzed water in the electrolytic cell 150 also flows back to the water tank 110 through the circulation pipeline 170.

[0036] In this embodiment, the preheater 120 is an electric heating rod with external threads. The water tank 110 has a threaded hole, and the external threads mate with the threaded hole to achieve a detachable connection between the preheater 120 and the water tank 110, facilitating maintenance and upkeep. Specifically, the preheater 120 can be in direct contact with the electrolyzed water, in which case the preheater 120 directly heats the electrolyzed water when energized; alternatively, the preheater 120 can not be in direct contact with the electrolyzed water, in which case the preheater 120 transfers heat to the shell of the water tank 110 when energized, thus indirectly heating the electrolyzed water.

[0037] The pretreatment component 130 includes an impurity filter 131 and a deionization filter 132. The water tank 110 is connected to the heating component 140 in sequence through the impurity filter 131 and the deionization filter 132. The impurity filter 131 is used to remove particulate impurities from the electrolyzed water, and the deionization filter 132 is used to remove cations from the electrolyzed water. The impurity filter 131 and the deionization filter 132 work together to ensure the electrolysis effect.

[0038] The heating assembly 140 includes a housing 141, a heating element 142, and a temperature sensor 143. The housing 141 has an inlet 144 and an outlet 145. The inlet 144 is connected to the pretreatment assembly 130, and the outlet 145 is connected to the electrolytic cell 150. The heating element 142 and the temperature sensor 143 are both mounted on the housing 141, with the heating element 142 positioned near the inlet 144 and the temperature sensor 143 positioned near the outlet 145. Specifically, electrolyzed water enters the housing 141 through the inlet 144 and flows out to the electrolytic cell 150 through the outlet 145. During this process, the heating element 142 heats the electrolyzed water entering the housing 141, and the temperature sensor 143 detects the temperature of the electrolyzed water flowing out of the housing 141 to ensure that the temperature of the electrolyzed water flowing out of the electrolytic cell 150 reaches the preset temperature, thus improving heating accuracy.

[0039] In this embodiment, the heating element 142 is an electric heating rod. The connection method between the heating element 142 and the outer shell 141 is the same as the connection method between the preheater 120 and the water tank 110, so as to facilitate maintenance and upkeep. Specifically, the heating element 142 can be in direct contact with the electrolyzed water, in which case the preheater 120 directly heats the electrolyzed water when energized; or the heating element 142 can not be in direct contact with the electrolyzed water, in which case the preheater 120 transfers heat to the outer shell 141 when energized, and then indirectly heats the electrolyzed water.

[0040] Preferably, the electrolytic cell test platform 100 further includes a cooling component 180 and a controller 190. The cooling component 180 is connected to the water tank 110 and is used to cool the electrolyzed water in the water tank 110. The controller 190 is electrically connected to the cooling component 180, the preheater 120, and the heating component 140. Specifically, the controller 190 is electrically connected to the temperature sensor 143, the heating element 142, the preheater 120, and the cooling component 180. The temperature sensor 143 is used to detect the temperature of the electrolyzed water flowing out of the electrolytic cell 150 and send the detected temperature data to the controller 190. The controller 190 is used to control the heating element 142, the preheater 120, and the cooling component 180 (turn them on, turn them off, or adjust their power) according to the temperature data to ensure that the temperature of the electrolyzed water flowing out of the electrolytic cell 150 is the preset temperature.

[0041] It should be noted that the voltage of the electrolytic cell 150 during the electrolysis process generates heat. After long-term operation, the heat accumulates and flows back to the water tank 110 with the returning electrolyzed water, causing the temperature of the electrolyzed water in the water tank 110 to rise and exceed the preset temperature. Therefore, it is necessary to cool down the electrolyzed water in the water tank 110. During the cooling process, the preheater 120 and the heating element 142 are turned off (or the power of the preheater 120 and the heating element 142 is reduced), and the cooling component 180 is started to achieve rapid cooling of the electrolyzed water.

[0042] The cooling assembly 180 includes a water pump 181, an inlet pipe 182, an outlet pipe 183, and an air-cooled radiator 184. One end of the air-cooled radiator 184 is connected to the water tank 110 via the inlet pipe 182, and the other end is connected to the water tank 110 via the outlet pipe 183. The water pump 181 is installed on either the inlet pipe 182 or the outlet pipe 183. The water pump 181 is used to draw electrolyzed water from the water tank 110 to the air-cooled radiator 184. The air-cooled radiator 184 is used to cool the electrolyzed water to reduce its temperature. Afterward, the electrolyzed water flows back to the water tank 110, thus achieving the cooling function of the entire water tank 110.

[0043] Preferably, there are multiple heating components 140 and multiple electrolytic cells 150 arranged side by side, with each electrolytic cell 150 connected to a heating component 140. That is, the electrolytic cell test platform 100 can simultaneously perform performance tests on multiple electrolytic cells 150. The current and water temperature of each electrolytic cell 150 are controllable (adjusted by the heating component 140), and it can be tested under pressure, so as to simultaneously test the electrolytic cells 150 under different conditions, reduce test time, and improve test efficiency.

[0044] In this embodiment, the number of heating components 140 and electrolytic cells 150 is four, but it is not limited to this. In other embodiments, the number of heating components 140 and electrolytic cells 150 can be two or six. The number of heating components 140 and electrolytic cells 150 is not specifically limited.

[0045] The electrolytic cell test platform 100 provided in this embodiment of the utility model has a preheater 120 installed in a water tank 110. The preheater 120 is used to preheat the electrolyzed water in the water tank 110. The water tank 110 is connected to the electrolytic cell 150 in sequence through a pretreatment component 130 and a heating component 140. The pretreatment component 130 is used to pretreat the electrolyzed water, and the heating component 140 is used to reheat the electrolyzed water. The electrolytic cell 150 is used to electrolyze the electrolyzed water to produce hydrogen. The electrolytic cell 150 is connected to the water tank 110 and is also used to return unelectrolyzed electrolyzed water to the water tank 110. Compared with the prior art, the electrolytic cell test platform 100 provided by this utility model adopts a preheater 120 installed in the water tank 110 and a heating component 140 set between the pretreatment component 130 and the electrolytic cell 150, so it can realize secondary heating of electrolyzed water, improve heating efficiency, enhance temperature rise effect, improve heating accuracy, and ensure the accuracy of performance test results.

[0046] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An electrolyzer test platform, characterized by, The device includes a water tank, a preheater, a pretreatment component, a heating component, and an electrolytic cell. The preheater is installed inside the water tank and is used to preheat the electrolyzed water in the water tank. The water tank is connected to the electrolytic cell in sequence through the pretreatment component and the heating component. The pretreatment component is used to pretreat the electrolyzed water, and the heating component is used to reheat the electrolyzed water. The electrolytic cell is used to electrolyze the electrolyzed water to produce hydrogen. The electrolytic cell is connected to the water tank and is also used to return unelectrolyzed electrolyzed water to the water tank.

2. The electrolyzer test platform of claim 1, wherein, The top of the water tank is provided with a water inlet and a return outlet. The water inlet is used to supply external electrolyzed water, and the return outlet is connected to the electrolysis cell. And / or, the bottom of the water tank is provided with a water outlet and a drain outlet, the water outlet being connected to the pretreatment component, and the drain outlet being used for electrolytic water discharge.

3. The electrolyzer test platform of claim 1, wherein, The water tank is equipped with a liquid level sensor, which is used to detect the liquid level of the electrolyzed water in the water tank and to issue an alarm when the liquid level is lower than a preset height.

4. The electrolyzer test platform of claim 1, wherein, The electrolytic cell test platform also includes a circulation pump. The water tank, the pretreatment component, the heating component, and the electrolytic cell are connected end to end to form a circulation pipeline, and the circulation pump is installed in the circulation pipeline.

5. The electrolyzer test platform of claim 1, wherein, The preheater is an electric heating rod with external threads, and the water tank has a threaded hole, with the external threads engaging with the threaded hole.

6. The electrolyzer test platform of claim 1, wherein, The pretreatment component includes an impurity filter and a deionization filter. The water tank is connected to the heating component in sequence through the impurity filter and the deionization filter. The impurity filter is used to remove particulate impurities from the electrolyzed water, and the deionization filter is used to remove cations from the electrolyzed water.

7. The electrolyzer test platform of claim 1, wherein, The heating assembly includes a housing, a heating element, and a temperature sensor. The housing has an inlet and an outlet. The inlet is connected to the pretreatment assembly, and the outlet is connected to the electrolytic cell. The heating element and the temperature sensor are both installed in the housing. The heating element is positioned near the inlet, and the temperature sensor is positioned near the outlet.

8. The electrolyzer test platform of claim 1, wherein, The electrolytic cell test platform also includes a cooling component and a controller. The cooling component is connected to the water tank and is used to cool the electrolyzed water in the water tank. The controller is electrically connected to the cooling component, the preheater, and the heating component.

9. The electrolyzer test platform of claim 8, wherein, The cooling assembly includes a water pump, an inlet pipe, an outlet pipe, and an air-cooled radiator. One end of the air-cooled radiator is connected to the water tank through the inlet pipe, and the other end is connected to the water tank through the outlet pipe. The water pump is installed on either the inlet pipe or the outlet pipe.

10. The electrolyzer test platform of claim 1, wherein, There are multiple heating components and multiple electrolytic cells arranged side by side, and each electrolytic cell is connected to one heating component.

Images