Gas-liquid separation system of electrolytic bath test equipment

Abstract

The utility model relates to the technical field of gas-liquid separation, and discloses a gas-liquid separation system of electrolytic bath test equipment, which comprises a first-stage gas-liquid separation tank, an injection port is fixedly connected to the outer wall of the first-stage gas-liquid separation tank, a second-stage gas-liquid separation tank is arranged on the outer wall of the first-stage gas-liquid separation tank, and the injection port is fixedly connected to the injection port. A gas exhaust port is formed in the top of the second-stage gas-liquid separation tank, a drain valve is arranged at the bottom of the second-stage gas-liquid separation tank, the drain valve is provided with a drainage assembly, and the drainage assembly is used for discharging liquid water in the second-stage gas-liquid separation tank. According to the gas-liquid separation system, liquid enters the drainage system through the steam trap after passing through the gas-liquid separation tank, gas upwards passes through the gas exhaust port, and generated hydrogen and oxygen are subjected to gas cooling and water separation treatment through the first-stage gas-liquid separation system and the second-stage gas-liquid separation system of the system, so that the problem that the water content of a gas source is relatively high is solved, and the flow measurement precision is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of gas-liquid separation, in particular to a gas-liquid separation system for an electrolytic cell testing device. Background Technique

[0002] Electrochemistry is a scientific field that studies the relationship between chemical changes and the conversion of electrical energy. It covers the study of how substances undergo chemical changes under the action of an electric field during the electrolysis process, and conversely, how to use chemical reactions to generate electrical energy. The simulation and evaluation of electrochemical reactions are detected through an electrolytic cell testing system, which is usually used in the fields of research and development of new electrochemical materials, battery technologies, electrolysis process optimization, etc. An electrolytic cell is the main container for electrochemical reactions, which contains an electrolyte and electrodes (anode and cathode). The design of the electrolytic cell can vary according to specific application requirements and may have different shapes, materials, and volumes.

[0003] Traditional electrolytic cell testing equipment mainly provides an accurate and reliable testing system for PEM electrolytic cells. It can test multiple electrolytic cells simultaneously. The testing system consists of a deionized water circulation temperature regulation system, a nitrogen purging system, a gas-liquid separation system, a safety monitoring system, etc., to meet the testing of polarization curves, single-cell consistency, hydrogen production energy consumption efficiency, product life, etc. of multi-channel PEM electrolytic cells.

[0004] However, for traditional electrolytic cell testing equipment, the hydrogen and oxygen produced by the electrolytic cell are discharged through the anode and cathode. The produced hydrogen and oxygen carry liquid water and are at a relatively high temperature, with a high water content in the hydrogen and oxygen, which affects the accuracy of flow measurement. Therefore, a gas-liquid separation system for an electrolytic cell testing device is proposed to solve the above problems. Content of the Utility Model

[0005] In order to make up for the above deficiencies, the utility model provides a gas-liquid separation system for an electrolytic cell testing device, aiming to improve the problem that the water content of the gas source produced in the existing technology affects the detection accuracy.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] A gas-liquid separation system for an electrolytic cell testing device includes a primary gas-liquid separation tank. The outer wall of the primary gas-liquid separation tank is fixedly connected with an injection port. A secondary gas-liquid separation tank is arranged on the outer wall of the primary gas-liquid separation tank. A gas discharge port is arranged at the top of the secondary gas-liquid separation tank. A drain valve is arranged at the bottom of the secondary gas-liquid separation tank. The drain valve is provided with a drainage component, and the drainage component is used to discharge the liquid water in the secondary gas-liquid separation tank.

[0008] As a further description of the above technical solution:

[0009] The drainage component includes a liquid discharge port, and the liquid discharge port is fixedly connected to the bottom of the steam trap;

[0010] As a further description of the above technical solution:

[0011] Both ends of the primary gas-liquid separation tank are fixedly connected with heads, and a base is fixedly connected to the bottom of one of the heads;

[0012] As a further description of the above technical solution:

[0013] A connector is fixedly connected to the top of the other head, and a welding chuck is fixedly connected to the outer wall of the connector;

[0014] As a further description of the above technical solution:

[0015] A stainless steel pipe is fixedly connected inside the welding chuck, and the outer wall of the stainless steel pipe is fixedly connected to the outer wall of the secondary gas-liquid separation tank;

[0016] As a further description of the above technical solution:

[0017] Both ends of the secondary gas-liquid separation tank are fixedly connected with another head.

[0018] The utility model has the following beneficial effects:

[0019] 1. In the utility model, the gas source enters the gas-liquid separation system. First, it passes through the primary gas-liquid separation tank and then enters the secondary gas-liquid separation tank. The liquid enters the drainage system through the steam trap, and the gas passes upward through the gas discharge port. Through the primary and secondary gas-liquid separation systems of this system, the generated hydrogen and oxygen are cooled in gas and the water is separated, solving the problem of high water content in the gas source and improving the flow measurement accuracy.

[0020] 2. In the utility model, the device is mainly composed of several parts such as stainless steel pipes, heads, and welding chucks, forming a closed tank body. The tank body plays a role in gas buffering and cooling. The diameter of the tank body is several times larger than that of the pipeline, playing a role in gas-liquid separation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a three-dimensional schematic diagram of a gas-liquid separation system of an electrolytic cell test device proposed by the utility model;

[0022] Figure 2 is a structural schematic diagram of a secondary gas-liquid separation tank of a gas-liquid separation system of an electrolytic cell test device proposed by the utility model;

[0023] Figure 3 is a structural schematic diagram of a steam trap of a gas-liquid separation system of an electrolytic cell test device proposed by the utility model;

[0024] Figure 4 This is a flowchart of the gas-liquid separation system of an electrolytic cell testing device proposed by the present utility model.

[0025] Legend description:

[0026] 1. Injection port; 2. Primary gas-liquid separation tank; 3. Connector; 4. Welding chuck; 5. Gas discharge port; 6. Stainless steel pipe; 7. Secondary gas-liquid separation tank; 8. Steam trap; 9. Liquid discharge port; 10. Base; 11. Head. Specific implementation mode

[0027] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0028] Referring to Figure 1 and Figure 4 , an embodiment provided by the present utility model: a gas-liquid separation system of an electrolytic cell testing device includes a primary gas-liquid separation tank 2. A injection port 1 is fixedly connected to the outer wall of the primary gas-liquid separation tank 2. A secondary gas-liquid separation tank 7 is arranged on the outer wall of the primary gas-liquid separation tank 2. A gas discharge port 5 is arranged at the top of the secondary gas-liquid separation tank 7. A steam trap 8 is arranged at the bottom of the secondary gas-liquid separation tank 7. The steam trap 8 is provided with a drainage assembly, and the drainage assembly is used to discharge the liquid water in the secondary gas-liquid separation tank 7.

[0029] Specifically, the gas enters through the injection port 1, and then is separated and cooled through the primary gas-liquid separation tank 2 and the secondary gas-liquid separation tank 7, and then the gas is discharged through the gas discharge port 5. The liquid enters the steam trap 8. Through effective gas-liquid separation and gas treatment steps, it is ensured that the hydrogen and oxygen generated by electrolysis are properly cooled and dried before flow measurement, thus ensuring the accuracy and stability of flow measurement. And this device can be flexibly assembled in a self-made manner, achieving the gas-liquid separation effect while taking into account the production cost. The drainage system at the bottom end of the secondary gas-liquid separation tank 7 adopts automatic drainage. When the amount of separated liquid water reaches a certain amount, it automatically drains water, and at the same time ensures that the gas in the pipeline cannot be discharged.

[0030] Referring to Figure 1 and Figure 2 , the drainage assembly includes a liquid discharge port 9, and the liquid discharge port 9 is fixedly connected to the bottom of the steam trap 8.

[0031] Specifically, these liquid waters are discharged from the system through the liquid discharge port 9, which can prevent water from accumulating in the system or affecting subsequent processing steps.

[0032] Refer to Figure 1 , Figure 2 and Figure 3 , both ends of the primary gas-liquid separation tank 2 are fixedly connected with the heads 11. A base 10 is fixedly connected to the bottom of one head 11, and a connecting piece 3 is fixedly connected to the top of the other head 11. A welding chuck 4 is fixedly connected to the outer wall of the connecting piece 3. A stainless steel pipe 6 is fixedly connected inside the welding chuck 4. The outer wall of the stainless steel pipe 6 is fixedly connected to the outer wall of the secondary gas-liquid separation tank 7. Both ends of the secondary gas-liquid separation tank 7 are fixedly connected with another head 11.

[0033] Specifically, this system is flexibly assembled and consists of several parts such as the stainless steel pipe 6, the head 11, the welding chuck 4, and the connecting piece 3. All materials are made of stainless steel. The stainless steel pipe 6 and the head 11 are welded together to form a closed tank body. The tank body plays a role in gas buffering and cooling. The diameter of the tank body is several times larger than that of the pipeline, which can ensure that the gas has enough time to flow inside the tank body, thereby playing a role in gas-liquid separation. Connection joints are designed on the outside of the tank body, mainly using the welding chuck 4, and matching parts can be flexibly selected. Through a simple isolation structure, the high-temperature and high-humidity gas flows in a specific direction, and gravity separation is carried out using the density difference between water and gas. The high-temperature gas is cooled, and the separated condensed water is discharged from the drain port, thereby ensuring the temperature reduction of the discharged gas and the effect of water separation, and thus ensuring the measurement accuracy and long-term stable measurement of the flowmeter.

[0034] Working principle: The gas source enters the interior of the fixedly connected primary gas-liquid separation tank 2 through the injection port 1. Since both ends of the primary gas-liquid separation tank 2 are fixedly connected to the heads 11, the device is in a closed state, causing the gas source to cool down. Then the gas source is transmitted through the stainless steel pipe 6 and the connecting piece 3 and enters the interior of the fixedly connected secondary gas-liquid separation tank 7. Similarly, both ends of the secondary gas-liquid separation tank 7 are fixedly connected to the heads 11 to form a closed state, and the gas source is cooled and separated for the second time. Then the separated gas is discharged through the gas discharge port 5 fixedly connected to the top of the secondary gas-liquid separation tank 7, and thus it is detected. The liquid enters the steam trap 8. When the amount of liquid inside the steam trap 8 reaches a certain amount, it automatically drains water through the liquid discharge port 9, and at the same time, it ensures that the gas in the pipeline cannot be discharged.

[0035] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An air-liquid separation system for an electrolytic cell testing device, comprising a primary air-liquid separation tank (2), characterized in that: The outer wall of the primary gas-liquid separation tank (2) is fixedly connected with an injection port (1). The outer wall of the primary gas-liquid separation tank (2) is provided with a secondary gas-liquid separation tank (7). The top of the secondary gas-liquid separation tank (7) is provided with a gas discharge port (5). The bottom of the secondary gas-liquid separation tank (7) is provided with a steam trap (8). The steam trap (8) is provided with a drainage assembly, and the drainage assembly is used to discharge the liquid water in the secondary gas-liquid separation tank (7).

2. The gas-liquid separation system of an electrolytic cell testing device according to claim 1, characterized in that: The drainage assembly includes a liquid discharge port (9), and the liquid discharge port (9) is fixedly connected to the bottom of the steam trap (8).

3. The gas-liquid separation system of an electrolytic cell test device according to claim 2, characterized in that: Both ends of the primary gas-liquid separation tank (2) are fixedly connected with end caps (11), and a base (10) is fixedly connected to the bottom of one of the end caps (11).

4. The gas-liquid separation system of an electrolytic cell testing device according to claim 3, characterized in that: A connecting piece (3) is fixedly connected to the top of the other end cap (11), and a welding chuck (4) is fixedly connected to the outer wall of the connecting piece (3).

5. The gas-liquid separation system of an electrolytic cell testing device according to claim 4, characterized in that: A stainless steel pipe (6) is fixedly connected inside the welding chuck (4), and the outer wall of the stainless steel pipe (6) is fixedly connected to the outer wall of the secondary gas-liquid separation tank (7).

6. The gas-liquid separation system of an electrolytic cell test device according to claim 5, characterized in that: Both ends of the secondary gas-liquid separation tank (7) are fixedly connected with another end cap (11).

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