A visual miniature experimental device

By using a transparent electrolysis chamber and cation exchange membrane in the chlor-alkali industrial electrolysis experimental device, combined with visual monitoring and tail gas treatment, the safety, intelligence, and environmental protection issues of traditional devices have been solved. This has enabled safe and reliable real-time monitoring and environmentally friendly treatment, thus improving teaching and research effectiveness.

CN224430737UActive Publication Date: 2026-06-30THE CHINESE UNIV OF HONG KONG (SHENZHEN)

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
THE CHINESE UNIV OF HONG KONG (SHENZHEN)
Filing Date
2026-05-08
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

Traditional chlor-alkali industrial electrolysis experimental devices suffer from high safety risks, low levels of intelligence, poor environmental performance, and lack of process monitoring, which affect teaching effectiveness and in-depth scientific research analysis.

Method used

A transparent electrolysis chamber separates the cathode and anode chambers, and a cation exchange membrane facilitates the directional movement of ions. Combined with a visual monitoring module and an exhaust gas treatment system, real-time monitoring and the collection of harmless gases are achieved.

Benefits of technology

It improved experimental safety, enhanced intelligent monitoring functions, enabled environmentally friendly gas treatment, and promoted intuitive teaching and in-depth understanding of scientific research.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a visualized micro-experimental device, including a transparent electrolysis chamber, two conductive electrodes, a visualization monitoring module, a transparent gas collecting bottle, a transparent tail gas absorption bottle, a first conduit, a second conduit, a third conduit, and a fourth conduit. The transparent electrolysis chamber is divided into a spatially isolated cathode chamber and an anode chamber. The two conductive electrodes are respectively inserted into the cathode chamber and the anode chamber. The visualization monitoring module is used for visualized qualitative and quantitative analysis of ion transfer. One end of the first conduit is inserted into the upper outlet of the anode chamber, and the other end is inserted into the upper inlet of the transparent gas collecting bottle. One end of the second conduit is inserted into the upper outlet of the transparent gas collecting bottle, and the other end is inserted into the bottom of the transparent tail gas absorption bottle. The third conduit is inserted into the upper outlet of the transparent tail gas absorption bottle. The fourth conduit is inserted into the upper outlet of the cathode chamber. This device solves the technical problems of high safety risks, low level of intelligence, poor environmental performance, and lack of process monitoring in traditional electrolysis experimental devices.
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Description

Technical Field

[0001] This utility model relates to the field of general chemical or physical laboratory equipment, specifically to a visualized micro-experimental device with intelligent monitoring function and environmental protection features, which is particularly suitable for teaching and research on the electrolysis process in the chlor-alkali industry. Background Technology

[0002] Electrolysis of saturated brine provides chlorine (Cl2) and caustic soda (NaOH), commonly known as the chlor-alkali industry. Traditional teaching methods for experimental setups in the chlor-alkali industry suffer from the following technical deficiencies:

[0003] 1. Safety issues: Traditional experimental apparatus lacks an ion exchange membrane. As the electrolysis reaction occurs, the H2 generated in the cathode region may come into contact with the Cl2 generated in the anode region, posing an explosion hazard. The NaOH generated in the cathode region may react with the Cl2 generated in the anode region to produce sodium hypochlorite (NaClO), reducing the purity and yield of NaOH.

[0004] 2. Insufficient intelligence: Traditional devices lack real-time monitoring methods. During the electrolysis of brine, it is difficult to observe and quantitatively analyze the directional transfer of microscopic particles in the solution, making it impossible to establish the connection between macroscopic phenomena and microscopic mechanisms, thus affecting teaching effectiveness.

[0005] 3. Lack of environmental friendliness: Traditional equipment lacks effective collection and treatment measures for harmful gases generated during the electrolysis process, which not only causes environmental pollution but also poses safety hazards, failing to meet the requirements of green chemistry and environmental protection.

[0006] 4. Lack of process monitoring: Traditional equipment cannot monitor and record key parameters of the electrolysis process in real time, making it difficult to conduct in-depth scientific research and teaching analysis.

[0007] Therefore, there is an urgent need to develop a visual micro-experimental device that integrates safety, intelligence, and environmental friendliness to meet the needs of modern chemical experimental teaching and research. Utility Model Content

[0008] The technical problem to be solved by this utility model is to provide a safe, reliable, intelligent, environmentally friendly, and visualized micro-experimental device that addresses the technical defects of traditional electrolysis experimental devices, such as high safety risks, low level of intelligence, poor environmental performance, and lack of process monitoring.

[0009] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0010] A visualization-enabled miniature experimental device includes: a transparent electrolysis chamber, two conductive electrodes, a visualization monitoring module, a transparent gas collecting bottle, a transparent tail gas absorption bottle, a first conduit, a second conduit, a third conduit, and a fourth conduit;

[0011] The transparent electrolysis chamber is divided into a spatially isolated cathode chamber and an anode chamber, with a cation exchange membrane between the two chambers. The cation exchange membrane is used to direct the cations in the solution in the anode chamber to the cathode chamber.

[0012] The two conductive electrodes are respectively inserted into the cathode chamber and the anode chamber, and are powered by an external power supply;

[0013] The visualization monitoring module is used to perform qualitative and quantitative analysis of the ion transfer in the transparent electrolysis chamber.

[0014] The first conduit has one end inserted into the upper outlet of the anode chamber and the other end inserted into the upper inlet of the transparent gas collecting bottle.

[0015] The second conduit has one end inserted into the upper outlet of the transparent gas collecting bottle and the other end inserted into the bottom of the transparent tail gas absorption bottle.

[0016] The third conduit is inserted into the upper outlet of the transparent tail gas absorption bottle and is connected to the atmosphere;

[0017] The fourth conduit is inserted into the upper air outlet of the cathode chamber and communicates with the atmosphere;

[0018] The device is suitable for experimental teaching and research on the electrolysis of saturated brine in the chlor-alkali industry.

[0019] Furthermore, the transparent electrolysis chamber is selected from H-type glass electrolysis cells or U-type glass electrolysis cells.

[0020] Furthermore, the cation exchange membrane is selected from one of the following: sulfonic acid type cation exchange membrane, carboxylic acid type cation exchange membrane, or phosphate type cation exchange membrane.

[0021] Furthermore, the visualization monitoring module includes: a pH meter and a conductivity meter; the pH meter is inserted into and fixed in the cathode chamber for quantitatively testing the pH value of the solution in the cathode chamber; the conductivity meter is placed in the anode chamber for quantitatively testing the conductivity of the solution in the anode chamber.

[0022] Furthermore, the pH tester is a pH meter or a pH sensor.

[0023] Furthermore, the conductivity tester uses a conductivity sensor.

[0024] Furthermore, the visualization monitoring module also includes an indicator injection module, used to inject an indicator into the transparent electrolysis chamber to monitor the acidity or alkalinity of the solution in different electrode chambers.

[0025] Furthermore, the volume of the transparent gas collecting bottle ranges from 1 to 1000 mL.

[0026] Furthermore, the volume of the transparent tail gas absorption bottle ranges from 1 to 1000 mL.

[0027] Furthermore, the diameter of the catheter ranges from 1 to 50 mm.

[0028] The beneficial effects of this utility model include:

[0029] 1. Enhanced Safety: The transparent electrolysis chamber is divided into a spatially isolated cathode and anode chambers, effectively preventing an explosion caused by the encounter of H2 generated in the cathode chamber and Cl2 generated in the anode chamber; the cation exchange membrane utilizes its selective passage of cations and anions, allowing sodium ions to move directionally to the cathode chamber to form NaOH, preventing Cl2 from being released. - Entering the cathode chamber and OH - Entering the anode chamber avoids the reaction of Cl2 with NaOH to form the byproduct NaClO, thus improving the purity and yield of caustic soda.

[0030] 2. Intelligent Monitoring Function: The visual monitoring module integrates a pH meter and a conductivity meter, enabling real-time monitoring and data acquisition of key parameters in the electrolysis process. The pH meter is located in the cathode chamber and can accurately monitor OH-. - Changes in concentration reflect the formation of NaOH; the conductivity meter, located in the anode chamber, monitors changes in the solution's conductivity, reflecting ion concentration and migration. Quantitative data analysis establishes a quantitative relationship between macroscopic experimental phenomena and microscopic ion transfer, promoting a deeper understanding of the fundamental principles of electrolysis.

[0031] 3. Excellent Environmental Performance: The device is equipped with a complete exhaust gas collection and treatment system. Cl2 generated at the anode is collected in a transparent gas collection bottle through a conduit system. Uncollected exhaust gas enters a transparent exhaust gas absorption bottle for chemical absorption treatment, preventing toxic gases from being directly emitted into the environment. H2 generated at the cathode is safely discharged through a fourth conduit. The entire process achieves zero emissions of harmful gases, meeting the requirements of green chemistry and environmental protection.

[0032] 4. Visualized teaching: The electrolysis chamber, gas collecting bottle, and tail gas absorption bottle are all designed with transparency. With the indicator injection module, the color changes, gas generation, ion migration and other phenomena during the electrolysis process can be observed intuitively, realizing the qualitative visualization of ion transfer and enhancing the intuitiveness and interest of teaching.

[0033] 5. High versatility: The device is not only suitable for electrolysis experiments in the chlor-alkali industry, but can also be widely used in other electrolysis experiments for teaching and scientific research, such as water electrolysis, electroplating, and electrolytic refining, and has good application value. Attached Figure Description

[0034] Figure 1This is a schematic diagram of the structure of a visualized micro-experimental device in one embodiment of this utility model.

[0035] List of components and reference numerals: 1. Cathode chamber, 2. Anode chamber, 3. Cation exchange membrane, 4. Conductive electrode, 5. pH meter, 6. Conductivity meter, 7. Transparent gas collection bottle, 8. Transparent tail gas absorption bottle, 9. Conduit, 10. Spare gas outlet, 11. Power supply. Detailed Implementation

[0036] The present application is described in detail below with reference to the embodiments, but the present application is not limited to these embodiments.

[0037] This application provides a visualization micro-experimental device, including: a transparent electrolysis chamber, two conductive electrodes 4, a visualization monitoring module, a transparent gas collecting bottle 7, a transparent tail gas absorption bottle 8, and four conduits 9.

[0038] The transparent electrolysis chamber is divided into a spatially isolated cathode chamber 1 and anode chamber 2, with a cation exchange membrane 3 between the two chambers. The cation exchange membrane is used to direct the cations in the solution in the anode chamber to the cathode chamber.

[0039] The two conductive electrodes 4 are respectively inserted into the cathode chamber and the anode chamber, and are powered by an external power supply 11;

[0040] The visualization monitoring module is used to perform qualitative and quantitative analysis of the ion transfer in the transparent electrolysis chamber.

[0041] The four catheters are designated as catheter 1, catheter 2, catheter 3, and catheter 4, respectively.

[0042] The first conduit has one end inserted into the upper outlet of the anode chamber and the other end inserted into the upper inlet of the transparent gas collecting bottle.

[0043] The second conduit has one end inserted into the upper outlet of the transparent gas collecting bottle and the other end inserted into the bottom of the transparent tail gas absorption bottle.

[0044] The third conduit is inserted into the upper outlet of the transparent tail gas absorption bottle and is connected to the atmosphere;

[0045] The fourth conduit is inserted into the upper air outlet of the cathode chamber and communicates with the atmosphere.

[0046] In one embodiment, the material of the transparent electrolytic cell includes, but is not limited to: ordinary glass, borosilicate glass, quartz glass, plexiglass, such as polymethyl methacrylate (PMMA), polycarbonate (PC), polyvinyl chloride (PVC), transparent resin, and other plexiglasses with light-transmitting properties.

[0047] In one embodiment, the transparent electrolytic cell may be in the shape of an H-shaped electrolytic cell, a U-shaped electrolytic cell, or the like.

[0048] In one embodiment, the volume of the transparent electrolytic cell ranges from 1 mL to 10,000 mL.

[0049] In a preferred embodiment, the transparent electrolytic cell is configured as a 60 mL H-type ordinary glass electrolytic cell.

[0050] In one embodiment, the cation exchange membrane includes, but is not limited to, sulfonic acid type cation exchange membranes, carboxylic acid type cation exchange membranes, and phosphoric acid type cation exchange membranes.

[0051] In a preferred embodiment, the cation exchange membrane is configured as a sulfonic acid type cation exchange membrane.

[0052] In one embodiment, the conductive electrode includes, but is not limited to: stone rod electrode, graphite sheet electrode, platinum wire electrode, platinum sheet electrode, gold-plated copper rod electrode, gold-plated copper sheet electrode, etc.

[0053] In one embodiment, the visualization monitoring module includes: a pH meter 5 and a conductivity meter 6;

[0054] The pH meter 5 is inserted into and fixed in the cathode chamber for quantitatively testing the pH value of the solution in the cathode chamber; the conductivity meter 6 is placed in the anode chamber for quantitatively testing the conductivity of the solution in the anode chamber.

[0055] In one embodiment, the pH meter is capable of accurately measuring H in the solution. + Concentration, including but not limited to: pH meters, pH sensors, etc.

[0056] In one embodiment, the conductivity meter is capable of accurately testing the conductivity of a solution, including but not limited to conductivity sensors.

[0057] In one embodiment, the visualization monitoring module further includes an indicator injection module for injecting an indicator into the transparent electrolysis chamber to monitor the acidity or alkalinity of the solution in different electrode chambers.

[0058] In one embodiment, the indicator includes phenolphthalein solution, litmus solution, etc.

[0059] In one embodiment, the volume of the transparent gas collecting bottle ranges from 1 to 1000 mL.

[0060] In one embodiment, the transparent gas collecting bottle is made of materials including but not limited to: ordinary glass, borosilicate glass, quartz glass, plexiglass, such as polymethyl methacrylate (PMMA), polycarbonate (PC), polyvinyl chloride (PVC), transparent resin, and other plexiglasses with light-transmitting properties.

[0061] In one embodiment, the volume of the transparent tail gas absorption bottle ranges from 1 to 1000 mL.

[0062] In one embodiment, the material of the transparent exhaust gas absorption bottle includes, but is not limited to: ordinary glass, borosilicate glass, quartz glass, plexiglass, such as polymethyl methacrylate (PMMA), polycarbonate (PC), polyvinyl chloride (PVC), transparent resin, and other plexiglasses with light transmission properties.

[0063] In a preferred embodiment, the transparent gas collecting bottle and the transparent tail gas absorption bottle can be set as 100mL transparent ordinary glass bottles.

[0064] In one embodiment, the diameter of the catheter ranges from 1 to 50 mm.

[0065] In one embodiment, the conduit includes, but is not limited to, glass conduit, polytetrafluoroethylene conduit, rubber conduit, etc.

[0066] In a preferred embodiment, the conduit may be configured as a glass conduit with a diameter of 5 mm and a rubber conduit with a diameter of 5 mm.

[0067] In one embodiment, the cathode chamber and the anode chamber are further provided with a spare gas outlet 10 for exporting chlorine or hydrogen gas generated by the electrodes to the electrolysis system.

[0068] Example 1

[0069] The transparent electrolysis chamber uses a 60 mL H-type ordinary glass electrolysis cell, spatially divided into a cathode chamber 1 and an anode chamber 2. A cation exchange membrane 3 is installed between the two chambers; in this embodiment, a sulfonic acid type cation exchange membrane is selected. This cation exchange membrane has selective permeability, allowing only cations (such as Na+) to pass through. + ) passes through, while preventing anions (such as Cl) from passing through. - OH - )pass.

[0070] Working principle explanation:

[0071] When saturated brine is electrolyzed, in anode chamber 2, Cl... - It loses electrons and is oxidized to form Cl2: 2Cl - - 2e - → Cl2↑; In cathode chamber 1, H2O gains electrons and is reduced to produce H2 and OH-.- 2H₂O + 2e - → H2↑ + 2OH - The placement of cation exchange membrane 3 allows Na to pass through the anode chamber 2. + Under the influence of the electric field, they migrate directionally to cathode chamber 1 and react with OH-. - Combined to form NaOH, while simultaneously preventing Cl from forming. - Entering cathode chamber 1 and OH - The caustic soda enters anode chamber 2. This avoids the reaction between Cl2 and NaOH to form the byproduct NaClO (Cl2 + 2NaOH → NaCl + NaClO + H2O), thereby improving the purity and yield of caustic soda. This is the key technical feature that produces the beneficial effects of this invention.

[0072] The two conductive electrodes 4 are respectively inserted into the cathode chamber 1 and the anode chamber 2. In this embodiment, graphite electrodes are used and powered by an external power supply 11. Graphite electrodes have good conductivity and chemical stability, making them suitable for electrolysis experiments.

[0073] The visualization monitoring module includes: a pH meter 5, a conductivity meter 6, and an indicator injection module.

[0074] pH meter 5 uses a pH sensor, which is inserted and fixed in cathode chamber 1 for real-time quantitative measurement of the pH value of the solution in cathode chamber 1. As the electrolysis reaction proceeds, the OH- in cathode chamber 1... - As the concentration increases, the pH value gradually rises. The pH meter 5 can accurately monitor this change and quantitatively reflect the formation of NaOH. This real-time monitoring function allows experimenters to establish a correlation between macroscopic pH changes and microscopic OH concentrations. - Quantitative relationships between concentration increases are crucial for a deeper understanding of the essence of the electrolysis process.

[0075] The conductivity meter 6 uses a conductivity sensor placed inside the anode chamber 2 to quantitatively measure the conductivity of the solution within the anode chamber 2 in real time. As the electrolysis reaction proceeds, the Na in the anode chamber 2... + The ions continuously migrate to cathode chamber 1, leading to a decrease in ion concentration and conductivity in anode chamber 2; simultaneously, Cl... - Changes in concentration also affect conductivity. The conductivity meter 6 can monitor these changes and quantitatively reflect ion migration and concentration variations.

[0076] The indicator injection module is used to inject an indicator (such as phenolphthalein solution) into the transparent electrolysis chamber to monitor the acidity or alkalinity of the solutions in different electrode chambers. When phenolphthalein solution is injected into cathode chamber 1, as the electrolysis reaction proceeds, the OH- in cathode chamber 1... -As the concentration increases, the solution changes from colorless to red. This color change directly reflects the formation of alkaline substances, enabling qualitative visualization of ion transfer. This qualitative observation, combined with quantitative testing using a pH meter 5, allows experimenters to comprehensively understand the electrolysis process from both qualitative and quantitative perspectives.

[0077] The four catheters 9 are referred to as the first catheter, the second catheter, the third catheter, and the fourth catheter, respectively. In this embodiment, a combination of glass catheters and rubber catheters with a diameter of 5 mm is selected.

[0078] The first conduit has one end inserted into the upper outlet of the anode chamber 2 and the other end inserted into the upper inlet of the transparent gas collecting bottle 7. Cl2 generated in the anode chamber 2 is collected in the transparent gas collecting bottle 7 through the first conduit.

[0079] The second conduit is inserted at one end into the upper outlet of the transparent gas collecting bottle 7 and at the other end into the bottom of the transparent tail gas absorption bottle 8. When the transparent gas collecting bottle 7 is full of Cl2, the excess Cl2 enters the bottom of the transparent tail gas absorption bottle 8 through the second conduit, where it comes into full contact with the absorption liquid (such as NaOH solution) for chemical absorption: Cl2 + 2NaOH → NaCl + NaClO + H2O, achieving the harmless treatment of the tail gas. This complete gas collection and tail gas treatment system ensures that the toxic gas Cl2 is not directly emitted into the environment, demonstrating the environmental performance of the device.

[0080] The third conduit is inserted into the upper outlet of the transparent tail gas absorption bottle 8 and connected to the atmosphere for discharging harmless gas after absorption treatment.

[0081] The fourth conduit is inserted into the upper air outlet of the cathode chamber 1 and connected to the atmosphere for discharging the H2 generated in the cathode chamber 1. Since H2 is non-toxic but flammable, it can be directly discharged into a well-ventilated environment through the fourth conduit.

[0082] The transparent electrolytic cell is made of ordinary glass, which has good transparency and chemical stability.

[0083] Both the transparent gas collecting bottle 7 and the transparent tail gas absorption bottle 8 are 100 mL transparent ordinary glass bottles. The transparent design allows the experimenter to directly observe the collection of Cl2 and the tail gas absorption process, enhancing the visualization effect of the experiment.

[0084] The cathode chamber 1 and anode chamber 2 are also provided with a spare gas outlet 10, which is used to remove chlorine or hydrogen generated by the electrodes from the electrolysis system when needed, providing operational flexibility.

[0085] How to use:

[0086] 1. Add saturated saline solution to anode chamber 2 and saturated saline solution to cathode chamber 1, keeping the liquid levels in both chambers consistent;

[0087] 2. Insert the pH meter 5 into the cathode chamber 1 and the conductivity meter 6 into the anode chamber 2, and record the initial data;

[0088] 3. Add a few drops of phenolphthalein solution to cathode chamber 1;

[0089] 4. Add an appropriate amount of NaOH solution to the transparent tail gas absorption bottle 8 as the absorption liquid;

[0090] 5. Connect all tubing to ensure unobstructed airflow;

[0091] 6. Connect power supply 11 to begin electrolysis;

[0092] 7. Observe and record the experimental phenomena: The solution in cathode chamber 1 gradually turns red and the pH value gradually increases; the conductivity in anode chamber 2 gradually decreases; yellow-green Cl2 gas is collected in transparent gas collecting bottle 7; H2 gas is produced in cathode chamber 1.

[0093] 8. After the experiment, turn off the power, record the final data, and analyze the experimental results.

[0094] Example 2

[0095] The difference between this embodiment and Embodiment 1 is that:

[0096] The transparent electrolysis chamber uses an 80 mL U-shaped glass electrolysis cell. The two vertical arms of the U-shaped glass electrolysis cell serve as the cathode chamber 1 and the anode chamber 2, respectively, and the bottom connecting part is equipped with a cation exchange membrane 3.

[0097] The cation exchange membrane 3 is a carboxylic acid type cation exchange membrane. Compared with sulfonic acid type cation exchange membranes, carboxylic acid type cation exchange membranes have better selective permeability and can more effectively prevent anions from passing through, thereby further improving product purity.

[0098] The conductive electrode 4 is a platinum electrode. Platinum electrodes have better catalytic activity and chemical stability, which can improve electrolysis efficiency and extend electrode life.

[0099] The pH meter 5 is selected as the pH tester. Compared with pH sensors, pH meters have higher measurement accuracy and can provide more accurate pH data, making them suitable for scientific research-level experiments.

[0100] The transparent gas collecting bottle 7 and the transparent tail gas absorption bottle 8 are made of 200 mL high borosilicate glass. High borosilicate glass has better corrosion resistance and heat resistance, making it suitable for larger-scale or longer-term experiments.

[0101] The conduit 9 is made of polytetrafluoroethylene (PTFE) with a diameter of 8 mm. PTFE has excellent corrosion resistance and can resist the erosion of corrosive gases such as Cl2, thus extending the service life of the conduit.

[0102] Working principle explanation:

[0103] The working principle of this embodiment is basically the same as that of Embodiment 1. However, due to the use of a U-shaped glass electrolytic cell and a carboxylic acid cation exchange membrane, the ion migration path is shorter and the selective permeability is better, resulting in higher electrolysis efficiency and higher product purity.

[0104] During electrolysis, the carboxylic acid cation exchange membrane 3 utilizes its carboxyl group (-COO) - The electrostatic repulsion of ) more effectively prevents Cl - and OH - Only Na is allowed. + This method more thoroughly avoids side reactions, resulting in higher purity NaOH in cathode chamber 1 and more complete collection of Cl2 in anode chamber 2.

[0105] The use of platinum electrodes further improves electrolysis efficiency. Platinum has a good catalytic effect on the electrolysis of water, which can reduce the overpotential required for electrolysis, resulting in a larger electrolysis current and a faster reaction rate at the same voltage.

[0106] The use of pH meter 5 provides more accurate pH measurement, accurate to 0.01 pH units, making experimental data more reliable and more suitable for quantitative research on ion migration rate, electrolysis efficiency and other scientific research topics.

[0107] This embodiment, through optimized structural design, further improves the performance and reliability of the device while maintaining all the advantages of Embodiment 1, making it more suitable for high-level scientific research.

[0108] Comparison of the two embodiments:

[0109] Both embodiments fully embody the core structural features of this utility model:

[0110] 1) The electrolysis chamber adopts a compartmentalized structure, with a cation exchange membrane between the cathode chamber and the anode chamber, forming a spatially isolated dual-chamber configuration;

[0111] 2) The monitoring system adopts a modular design. The pH meter is fixed in the cathode chamber, the conductivity meter is placed in the anode chamber, and the indicator injection module is set outside the electrolysis chamber. The positions of each component are clear and the installation is convenient.

[0112] 3) The gas treatment system adopts a series connection structure, with transparent gas collection bottles and transparent tail gas absorption bottles connected in sequence through conduits to form a complete gas collection and treatment channel;

[0113] 4) The conduit system is reasonably laid out. The first conduit connects the anode chamber to the gas collecting bottle, the second conduit connects the gas collecting bottle to the tail gas absorption bottle, and the third and fourth conduits connect the tail gas absorption bottle and the cathode chamber to the atmosphere, respectively. The functions of each conduit are clear and the connections are reliable.

[0114] The rational configuration of the above-mentioned structural features makes the device of this utility model compact, complete, and easy to operate, and has better safety, visibility and environmental protection compared with traditional electrolysis experimental devices.

[0115] The above description is merely a few embodiments of this application and is not intended to limit this application in any way. Although this application discloses preferred embodiments as described above, it is not intended to limit this application. Any changes or modifications made by those skilled in the art without departing from the scope of the technical solution of this application using the disclosed technical content are equivalent to equivalent implementation cases and fall within the scope of the technical solution.

Claims

1. A visual microscale laboratory device, characterized by, include: Transparent electrolysis chamber, two conductive electrodes, visual monitoring module, transparent gas collecting bottle, transparent tail gas absorption bottle, first conduit, second conduit, third conduit, and fourth conduit; The transparent electrolysis chamber is divided into a spatially isolated cathode chamber and an anode chamber, with a cation exchange membrane between the two chambers. The cation exchange membrane is used to direct the cations in the solution in the anode chamber to the cathode chamber. The two conductive electrodes are respectively inserted into the cathode chamber and the anode chamber, and are powered by an external power supply; The visualization monitoring module is used to perform qualitative and quantitative analysis of the ion transfer in the transparent electrolysis chamber. The first conduit has one end inserted into the upper outlet of the anode chamber and the other end inserted into the upper inlet of the transparent gas collecting bottle. The second conduit has one end inserted into the upper outlet of the transparent gas collecting bottle and the other end inserted into the bottom of the transparent tail gas absorption bottle. The third conduit is inserted into the upper outlet of the transparent tail gas absorption bottle and is connected to the atmosphere; The fourth conduit is inserted into the upper air outlet of the cathode chamber and communicates with the atmosphere.

2. The visualization micro-experimental device according to claim 1, characterized in that, The transparent electrolysis chamber is selected from H-type glass electrolysis cells or U-type glass electrolysis cells.

3. The visualization micro-experimental device according to claim 1, characterized in that, The cation exchange membrane is selected from at least one of sulfonic acid type cation exchange membrane, carboxylic acid type cation exchange membrane, and phosphate type cation exchange membrane.

4. The visualization micro-experimental device according to claim 1, characterized in that, The visualization monitoring module includes a pH meter and a conductivity meter; The pH meter is inserted into and fixed in the cathode chamber for quantitative testing of the pH value of the solution inside the cathode chamber. The conductivity meter is placed in the anode chamber and is used to quantitatively test the conductivity of the solution in the anode chamber.

5. The visualization micro-experimental device according to claim 4, characterized in that, The pH tester is selected from a pH meter or a pH sensor.

6. The visualization micro-experimental device according to claim 4, characterized in that, The conductivity tester uses a conductivity sensor.

7. The visualization micro-experimental device according to claim 1, characterized in that, The visualization monitoring module further includes an indicator injection module, used to inject an indicator into the transparent electrolysis chamber to monitor the acidity and alkalinity of the solution in different electrode chambers.

8. The visualization micro-experimental device according to claim 1, characterized in that, The volume of the transparent gas collecting bottle ranges from 1 to 1000 mL.

9. The visualization micro-experimental device according to claim 1, characterized in that, The volume of the transparent tail gas absorption bottle ranges from 1 to 1000 mL.

10. The visualization micro-experimental device according to claim 1, characterized in that, The diameter of the catheter ranges from 1 to 50 mm.