Water replenishing device for water electrolysis normal pressure test system

Abstract

The application provides a water replenishing device for an electrolysis water normal pressure test system, and belongs to the electrolysis water test field.The water replenishing device comprises a liquid level detection device, a pure water tank and a water pump device.The liquid level detection device is arranged on the electrolysis water test device and is used for detecting the water level of the electrolysis water test device.The one end of the water pump device is connected with the pure water tank through a water pipe, and the other end of the water pump device is connected with the electrolysis water test device through a pipeline.The purpose is to solve the problems of low water replenishing precision, easy parameter fluctuation and dry burning and the like.The technical effect is that the dry burning risk is reduced, the water replenishing device effectively realizes high-precision trace water replenishing, avoids system parameter fluctuation and reduces the occurrence of dry burning risk, and the safety performance is improved.

Description

Technical Field

[0001] This invention relates to the field of water electrolysis testing technology, and in particular to a water replenishment device for an atmospheric pressure water electrolysis testing system. Background Technology

[0002] In existing atmospheric pressure electrolysis water testing systems, the pure water in the electrolyzer is continuously consumed during electrolysis, causing the liquid level to drop. Currently, there are two common practices: First, manual intermittent water replenishment. Researchers need to periodically observe the level gauge and manually open the valve to replenish water. This not only increases the operational burden but, more seriously, causes significant data fluctuations. Before and after water replenishment, the electrolyte concentration, temperature, and liquid level in the electrolyzer change significantly, leading to jumps in key test parameters such as current density and cell voltage, making it impossible to obtain continuous and stable test curves. Secondly, the test cannot be automated; the entire testing process cannot achieve unattended, long-term continuous operation (such as lifespan testing), severely limiting testing efficiency. Furthermore, manual intermittent water replenishment also poses safety risks. For example, negligence during manual operation may cause the electrolyzer to dry out, damaging expensive membrane electrodes and even leading to safety accidents. The second method is simple float valve replenishment, similar to the principle of a toilet tank. While it can maintain the liquid level, its accuracy is low, and the replenishment action is abrupt, also causing minor fluctuations in system parameters, making it unsuitable for high-precision scientific research testing. Summary of the Invention

[0003] This invention provides a water replenishment device for an electrolytic water atmospheric pressure testing system to solve the above-mentioned problems in the prior art.

[0004] This invention provides a water replenishment device for an electrolytic water atmospheric pressure testing system, comprising a liquid level detection device, a pure water tank, and a water pump device. The liquid level detection device is installed on the electrolytic water testing device and is used to detect the water level of the electrolytic water testing device. One end of the water pump device is connected to the pure water tank through a water pipe, and the other end of the water pump device is connected to the electrolytic water testing device through a pipeline.

[0005] In addition, the water replenishment device for an electrolytic water atmospheric pressure testing system according to the present invention may also have the following additional technical features:

[0006] In some embodiments of the present invention, a buffer tank is also included, one end of which is connected to a water pump device via a water pipe, and the other end of which is connected to an electrolytic water testing device via a pipeline.

[0007] In some embodiments of the present invention, a first liquid level switch and a second liquid level switch are also included, the first liquid level switch and the second liquid level switch being installed alternately on the water electrolysis test device, with the first liquid level switch located below the second liquid level switch.

[0008] In some embodiments of the present invention, the liquid level detection device includes a liquid level sensor, which is mounted on the water electrolysis testing device.

[0009] In some embodiments of the present invention, the liquid level detection device includes a pressure sensor, which is installed inside the water electrolysis test device and located at the bottom of the water electrolysis test device.

[0010] In some embodiments of the present invention, the liquid level detection device includes an electronic scale, which is disposed at the bottom of the water electrolysis testing device.

[0011] In some embodiments of the present invention, the water pump device includes a first water pump, one end of which is connected to a pure water tank via a water pipe, and the other end of which is connected to an electrolytic water testing device via a pipeline.

[0012] In some embodiments of the present invention, the water pump device includes a second water pump, one end of which is connected to a pure water tank via a water pipe, and the other end of which is connected to an electrolyzed water testing device via a pipeline. The flow rate of the second water pump is less than that of the first water pump.

[0013] In some embodiments of the present invention, a first solenoid valve is also included, which is installed on the water pipe between the first water pump and the electrolytic water testing device.

[0014] In some embodiments of the present invention, a second solenoid valve is also included, which is installed on the water pipe between the second water pump and the electrolytic water testing device.

[0015] In summary, this application includes the following beneficial technical effects: the liquid level detection device can accurately monitor the water level in the electrolytic water testing device, thereby reducing the risk of dry burning; the water pump device enables smooth and continuous micro-water replenishment, eliminating the water hammer effect and disturbance to the electrolytic water testing device; in summary, this water replenishment device effectively achieves high-precision micro-water replenishment while avoiding fluctuations in system parameters, reducing the risk of dry burning, and increasing safety performance. Attached Figure Description

[0016] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0017] Figure 1 A schematic diagram of the first structure of a water replenishment device for an electrolytic water atmospheric pressure testing system according to some embodiments of the present invention is shown.

[0018] Figure 2A schematic diagram of a second structure of a water replenishment device for an electrolytic water atmospheric pressure testing system according to some embodiments of the present invention is shown.

[0019] Figure 3 A schematic diagram of a third structure of a water replenishment device for an electrolytic water atmospheric pressure testing system according to some embodiments of the present invention is shown.

[0020] Figure label:

[0021] 1. Water pump unit; 101. First water pump; 102. Second water pump; 2. Controller; 3. Buffer tank; 4. Pure water tank; 5. Liquid level sensor; 6. Electrolyzed water testing device; 7. First liquid level switch; 8. Second liquid level switch; 9. Host computer; 10. Electronic scale; 11. Pressure sensor; 12. Solenoid valve group; 121. First solenoid valve; 122. Second solenoid valve. Detailed Implementation

[0022] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

[0023] It should be understood that the terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms such as “a,” “an,” and “” used herein may also indicate the inclusion of the plural forms. The terms “comprising,” “including,” “containing,” and “having” are inclusive and therefore indicate the presence of the stated features, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein are not construed as requiring them to be performed in a specific order described or illustrated, unless the order of performance is explicitly indicated. It should also be understood that additional or alternative steps may be used.

[0024] Although terms such as first, second, third, etc., may be used in this document to describe multiple elements, components, regions, layers, and / or segments, these elements, components, regions, layers, and / or segments should not be limited by these terms. These terms may be used only to distinguish one element, component, region, layer, or segment from another. Unless the context clearly indicates otherwise, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence. Therefore, the first element, component, region, layer, or segment discussed below may be referred to as the second element, component, region, layer, or segment without departing from the teachings of the exemplary embodiments.

[0025] For ease of description, spatial relative terms may be used in the text to describe the relationship of one element or feature relative to another element or feature, as shown in the figure. These relative terms include, for example, "inside," "outside," "middle," "outer," "below," "below," "above," "over," etc. Such spatial relative terms are intended to include different orientations of the device in use or operation, other than those depicted in the figure. For example, if the device in the figure is flipped, an element described as "below other elements or features" or "below other elements or features" would subsequently be oriented "above other elements or features" or "above other elements or features." Therefore, the example term "below" can include both upper and lower orientations. The device may also be rotated 90 degrees or in other orientations, and the spatial relative descriptors used in the text will be interpreted accordingly.

[0026] like Figures 1 to 3 As shown in the embodiment of the first aspect of the present invention, a water replenishment device for an electrolytic water atmospheric pressure testing system is proposed, comprising a liquid level detection device, a pure water tank 4 and a water pump device 1. The liquid level detection device is disposed on the electrolytic water testing device 6 and is used to detect the water level of the electrolytic water testing device 6. One end of the water pump device 1 is connected to the pure water tank 4 through a water pipe, and the other end of the water pump device 1 is connected to the electrolytic water testing device 6 through a pipeline.

[0027] In the above embodiments, it should be noted that the water pump device 1 can be a metering pump; the electrolyzed water testing device is the testing device of an existing electrolyzed water atmospheric pressure testing system, and its specific structure will not be discussed in detail here; the pure water tank 4 is used to store makeup water, which can be deionized water, and is connected to the inlet of the water pump device 1 through a water pipe. The water pump device 1, as the core power source, adopts a precision metering pump driven by a stepper motor or servo motor. Its advantages are that the flow rate is accurately controllable, the output is stable, and there are no pulses or tiny pulses, enabling the replenishment of tiny flow rates at the milliliter per minute level.

[0028] The technical effects achieved by the above embodiments are as follows: the water level in the electrolytic water testing device 6 can be accurately monitored by setting the liquid level detection device, thereby reducing the risk of dry burning; the water pump device enables smooth and continuous micro-water replenishment, eliminating the water hammer effect and disturbance to the electrolytic water testing device 6; in summary, this water replenishment device effectively achieves high-precision micro-water replenishment while avoiding fluctuations in system parameters, reducing the risk of dry burning, and increasing safety performance.

[0029] Optional, such as Figures 1 to 3 As shown, it also includes a buffer tank 2. One end of the buffer tank 2 is connected to the water pump device 1 through a water pipe, and the other end of the buffer tank 2 is connected to the electrolyzed water testing device 6 through a pipeline.

[0030] In the above optional embodiments, it should be noted that the buffer tank 2 can be an existing liquid buffer tank, and the specific structure will not be discussed in detail here.

[0031] The beneficial effect of the above optional embodiments is that the stability of water replenishment can be increased by setting buffer tank 2.

[0032] Optional, such as Figures 1 to 3 As shown, it also includes a first liquid level switch 7 and a second liquid level switch 8. The first liquid level switch 7 and the second liquid level switch 8 are installed alternately on the electrolysis water testing device 6, with the first liquid level switch 7 located below the second liquid level switch 8.

[0033] In the above optional embodiments, it should be noted that the first liquid level switch 7 is installed on the electrolysis cell of the water electrolysis test device, located near the bottom wall of the electrode cell, and the first liquid level switch 7 is installed on the electrolysis cell of the water electrolysis test device, located near the top of the electrode cell.

[0034] Specifically, the first liquid level switch 7 is set at the lower limit or safety critical point of the allowable liquid level range of the electrolytic cell, serving as a safety alarm. When the liquid level abnormally drops to this position, the switch signal is triggered, indicating that the test system is in a dangerous state.

[0035] The second liquid level switch 8 is located near the upper limit of the allowable liquid level range in the electrolyzer as a redundant protection. When the liquid level abnormally rises to this position, the switch signal is triggered.

[0036] Optional, such as Figures 1 to 3 As shown, the liquid level detection device includes a liquid level sensor 5, which is installed on the electrolytic water testing device 6.

[0037] In the above optional embodiments, it should be noted that the liquid level sensor 5 is a hydrostatic, capacitive, or laser rangefinder liquid level sensor, used to continuously and accurately measure the liquid level in the electrolysis cell of the water electrolysis test device 6, and provide an accurate liquid level feedback signal; the liquid level sensor 5 can also be an ultrasonic liquid level gauge or a radar liquid level gauge, installed on the top of the electrolysis cell of the water electrolysis test device 6, emitting ultrasonic waves or radar waves to the liquid surface, and calculating the distance by receiving the echo time.

[0038] Optional, such as Figures 1 to 3 As shown, the liquid level detection device includes a pressure sensor 11, which is installed inside the electrolyzed water testing device 6 and located at the bottom of the electrolyzed water testing device 6.

[0039] In the above optional embodiments, it should be noted that the pressure sensor 11 can be inside the electrolytic cell of the electrolytic water testing device 6, or it can be installed on the water inlet pipe of the electrolytic cell of the electrolytic water testing device 6, and the liquid level height can be calculated by measuring the input static pressure.

[0040] Optional, such as Figures 1 to 3 As shown, the liquid level detection device includes an electronic scale 10, which is located at the bottom of the water electrolysis test device 6.

[0041] In the above optional embodiments, it should be noted that the electrolysis cell of the water electrolysis test device 6 is placed on a high-precision electronic scale 10, and the water consumption is indirectly and accurately calculated by the change in total weight, thereby obtaining the liquid level height.

[0042] Optional, such as Figures 1 to 3 As shown, the water pump device 1 includes a first water pump 101. One end of the first water pump 101 is connected to the pure water tank 4 through a water pipe, and the other end of the first water pump 101 is connected to the electrolyzed water testing device 6 through a pipeline.

[0043] In the above optional embodiments, it should be noted that the first water pump 101 is a metering pump.

[0044] The advantages of the above optional embodiments are that the first water pump 101 can effectively control the supply of makeup water from the pure water tank 4 to the water tank of the electrolytic water testing device 6.

[0045] Optional, such as Figures 1 to 3 As shown, the water pump device 1 includes a second water pump 102. One end of the second water pump 102 is connected to the pure water tank 4 through a water pipe, and the other end of the second water pump 102 is connected to the electrolyzed water testing device 6 through a pipeline. The flow rate of the second water pump 102 is less than the flow rate of the first water pump 101.

[0046] In the above optional embodiments, it should be noted that the second water pump 102 is a metering pump; the water pipe connecting the first water pump 101 to the electrolyzed water testing device 6 and the water pipe connecting the first water pump 102 to the electrolyzed water testing device 6 are both connected to the buffer tank 2.

[0047] The advantages of the above optional embodiments are as follows: the second water pump 102 can work in coordination with the first water pump 101. When rapid water replenishment is needed, the first water pump 101 and the second water pump 102 start simultaneously. When the target liquid level is approached, the first water pump 101 stops, and only the second water pump 102 performs fine micro-replenishment, thereby ensuring the accuracy of water replenishment.

[0048] Optional, such as Figures 1 to 3 As shown, it also includes a first solenoid valve 121, which is installed on the water pipe between the first water pump 101 and the electrolytic water testing device 6.

[0049] In the above optional embodiments, it should be noted that the first solenoid valve 121 is a proportional valve.

[0050] The advantages of the above optional embodiments are: the flow rate of the first water pump 101 can be controlled by setting the first solenoid valve 121, and the speed at which the replenished water enters the water tank of the electrolytic water testing device 6 can be effectively regulated.

[0051] Optional, such as Figures 1 to 3 As shown, it also includes a second solenoid valve 122, which is installed on the water pipe between the second water pump 102 and the electrolytic water testing device 6.

[0052] In the above optional embodiments, it should be noted that the second solenoid valve 122 is a proportional valve; the first solenoid valve 121 and the second solenoid valve 122 are combined to form a solenoid valve group 12.

[0053] It also includes controller 2 and host computer 9. Host computer 9 and controller 2 are electrically connected. First solenoid valve 121, second solenoid valve 122, first water pump 101, second water pump 102, liquid level detection device, first liquid level switch 7 and second liquid level switch 8 are all electrically connected to controller 2.

[0054] Controller 2 is electrically connected to host computer 9 to achieve bidirectional data exchange. The host computer can remotely set the target liquid level, control parameters, and alarm thresholds, and receive data such as liquid level, water replenishment status, and fault codes in real time.

[0055] The water replenishment process for this device is as follows:

[0056] Initialization: The system is powered on, controller 2 is initialized, and the target liquid level value, parameters and alarm threshold are read from the host computer 9.

[0057] The liquid level detection device continuously collects real-time liquid level data of the electrolytic cell of the electrolytic water testing device 6, and the first liquid level switch 7 and the second liquid level switch 8 monitor the liquid level limit position in real time.

[0058] The controller 2 compares the real-time liquid level with the target liquid level, calculates the required water replenishment flow rate through an algorithm, and outputs a corresponding control signal to the water pump device 1. At the same time, the controller 2 receives the real-time electrolysis current signal sent by the host computer 9 and dynamically adjusts the parameters to adapt to different water consumption rates. The water pump device 1 operates at a precisely calculated speed according to the received control signal, and smoothly pumps the water in the pure water tank 4 into the electrolysis cell of the electrolyzed water test device 6 through the buffer tank 2.

[0059] If the first liquid level switch 7 is triggered, the controller 2 immediately sends a high-level alarm to the host computer 9 and executes an emergency strategy, forcing the water pump device 1 to replenish water at the maximum rate, and suggesting that the host computer 9 reduce the electrolysis current or suspend the test.

[0060] If the second liquid level switch 8 is triggered, the controller 2 will immediately stop the water pump device 2 and issue an alarm to prevent overflow.

[0061] Throughout the entire test process, data such as liquid level curves, water replenishment flow rates, and alarm events were recorded and transmitted in real time to the host computer 2 via a communication interface for subsequent data analysis and report generation.

[0062] The advantages of the above optional embodiments are: by setting the second solenoid valve 122, the water supply speed and flow rate of the second water pump 102 can be further controlled, thereby improving the water supply accuracy.

[0063] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A water replenishment device for an electrolytic water atmospheric pressure testing system, characterized in that, It includes a liquid level detection device, a pure water tank (4) and a water pump device (1). The liquid level detection device is installed on the electrolyzed water test device (6) and is used to detect the water level of the electrolyzed water test device (6). One end of the water pump device (1) is connected to the pure water tank (4) through a water pipe, and the other end of the water pump device (1) is connected to the electrolyzed water test device (6) through a pipeline.

2. The water replenishment device for an electrolytic water atmospheric pressure testing system according to claim 1, characterized in that, It also includes a buffer tank (2), one end of which is connected to the water pump device (1) via a water pipe, and the other end of which is connected to the electrolyzed water testing device (6) via a pipeline.

3. The water replenishment device for an electrolytic water atmospheric pressure testing system according to claim 1, characterized in that, It also includes a first liquid level switch (7) and a second liquid level switch (8), which are installed at intervals on the electrolytic water testing device (6), with the first liquid level switch (7) located below the second liquid level switch (8).

4. A water replenishment device for an electrolytic water atmospheric pressure testing system according to claim 1, characterized in that, The liquid level detection device includes a liquid level sensor (5), which is installed on the electrolytic water testing device (6).

5. A water replenishment device for an electrolytic water atmospheric pressure testing system according to claim 1, characterized in that, The liquid level detection device includes a pressure sensor (11), which is installed inside the electrolyzed water test device (6) and located at the bottom of the electrolyzed water test device (6).

6. A water replenishment device for an electrolytic water atmospheric pressure testing system according to claim 1, characterized in that, The liquid level detection device includes an electronic scale (10), which is located at the bottom of the electrolyzed water testing device (6).

7. A water replenishment device for an electrolytic water atmospheric pressure testing system according to claim 1, characterized in that, The water pump device (1) includes a first water pump (101), one end of which is connected to the pure water tank (4) via a water pipe, and the other end of which is connected to the electrolytic water testing device (6) via a pipeline.

8. A water replenishment device for an electrolytic water atmospheric pressure testing system according to claim 7, characterized in that, The water pump device (1) includes a second water pump (102), one end of which is connected to the pure water tank (4) via a water pipe, and the other end of which is connected to the electrolytic water testing device (6) via a pipeline. The flow rate of the second water pump (102) is less than that of the first water pump (101).

9. A water replenishment device for an electrolytic water atmospheric pressure testing system according to claim 7, characterized in that, It also includes a first solenoid valve (121), which is installed on the water pipe between the first water pump (101) and the electrolytic water testing device (6).

10. A water replenishment device for an electrolytic water atmospheric pressure testing system according to claim 8, characterized in that, It also includes a second solenoid valve (122), which is installed on the water pipe between the second water pump (102) and the electrolytic water test device (6).

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