Electrolytic tank fatigue detection test device

Abstract

The utility model discloses a fatigue detection test device for an electrolytic cell, which relates to the technical field of electrodes and comprises a water bearing seat, the water bearing seat is used for collecting percolate in the detection process after the fatigue of the electrolytic cell, and a supporting structure with a through hole is welded at the top of the water bearing seat. One side of the electrolytic bath body is connected with a hydrogen and electrolyte discharge pipe, an oxygen discharge pipe and an electrolyte inlet pipe, one side of the supporting structure is connected with an electrolyte supply assembly, and one end of the hydrogen and electrolyte discharge pipe is connected with a condensation pipe. According to the utility model, hydrogen and electrolyte steam are introduced into the backflow channel through the hydrogen and electrolyte discharge pipe, the hydrogen rises into the gas collection bottle, the electrolyte steam is condensed and flows back into the water bearing seat, and the fatigue strength of the electrolytic cell can be obtained according to the detection result of the gas flowmeter by controlling the detection time and the chlorine ion content in the electrolyte. The detection steps of the fatigue of the electrolytic cell are simplified, and meanwhile the detection cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of electrodes, in particular to an electrolytic cell fatigue detection test device. Background Technique

[0002] Electrolytic cells usually produce hydrogen by electrolyzing water. According to the structure of the electrolytic cell, it can be divided into box-type electrolytic cells and filter-press electrolytic cells. Box-type electrolytic cells are mainly used in fields such as electroplating and refining, while filter-press electrolytic cells are mainly used for hydrogen production by electrolyzing water. Before use, several processes such as pre-tightening, cold-tightening, and hot-tightening need to be carried out on the electrolytic cell. Before hot-tightening the electrolytic cell, internal heat steaming of the electrolytic cell is required. Heat steaming usually involves introducing steam with a pressure of 0.2 MPa - 0.3 MPa into the electrolytic cell. During the heat steaming process, the chloride ion content in the heat steaming steam needs to be controlled. If the chloride ion content is too high, it will induce corrosion, resulting in electrolytic cell fatigue and reducing the service life of the electrolytic cell.

[0003] When analyzing the fatigue of an electrolytic cell, the existing electrolytic cell fatigue detection test device usually needs to cooperate with a metallographic microscope to observe the corrosion degree of the electrode surface. Its test steps are cumbersome, the operation difficulty is large, and the cost is high. Therefore, we propose an electrolytic cell fatigue detection test device that can simplify the detection steps and reduce the detection cost. Content of the Utility Model

[0004] The purpose of the utility model is to provide an electrolytic cell fatigue detection test device to solve the problems raised in the above background technique.

[0005] To achieve the above object, the present utility model provides the following technical solutions: An electrolytic cell fatigue detection test device includes a water receiving seat. The water receiving seat collects the exudate during the detection process after the electrolytic cell is fatigued, and the collected exudate converges inside the water receiving seat. After opening the check valve, it can be discharged through a water guide pipe. A support structure with through holes is welded to the top of the water receiving seat. The support structure is used to support and connect the electrolytic cell body to be detected. The top of the support structure is detachably connected to the electrolytic cell body, enabling multiple detections of the electrolytic cell body. One side of the electrolytic cell body is connected to a hydrogen and electrolyte discharge pipe, an oxygen discharge pipe, and an electrolyte inlet pipe. One side of the support structure is connected to an electrolyte supply assembly. The electrolyte supply assembly passes electrolyte into the electrolytic cell body through the electrolyte inlet pipe. One end of the hydrogen and electrolyte discharge pipe is connected to a condenser. The hydrogen and electrolyte discharge pipe is used to discharge the hydrogen generated by electrolysis and the electrolyte vapor carried by the hydrogen. The discharged hydrogen and electrolyte are discharged into the condenser through the hydrogen and electrolyte discharge pipe. One end of the condenser is connected to a reflux channel. The top of the reflux channel is connected to a gas collecting bottle through a valve and a gas flow meter. The lower end of the reflux channel is connected to a corrugated pipe. The top of the water receiving seat is penetrated and connected to a positioning pipe. The top of the positioning pipe is connected to the lower end of the corrugated pipe. An exhaust structure is connected to the surface of the reflux channel. A nitrogen cylinder is fixedly connected to one side of the support structure. One end of the nitrogen cylinder is connected to a trachea through a gas valve.

[0006] As a further solution of the present utility model: The water receiving seat is a steel box body with a hollow interior. A water guide pipe is penetrated and connected to the side surface of the water receiving seat. A check valve is fixed at the connection between the water guide pipe and the water receiving seat. The bottom surface of the water guide pipe is tangent to the inner bottom surface of the water receiving seat. By connecting the water guide pipe, the electrolyte collected in the water receiving seat can be discharged to the outside of the water receiving seat, reducing the water corrosion intensity inside the water receiving seat.

[0007] As a further solution of the present utility model: Transparent observation windows are penetrated and fixed on the surfaces of the water receiving seat and the electrolyte tank. A water supply pipe is connected to the top of the electrolyte tank. The observation window can observe the electrolyte content in the electrolyte tank.

[0008] As a further solution of the present utility model: The support structure includes a load-bearing plate and a lifting plate. The top of the load-bearing plate is integrally formed with the lifting plate. The top of the lifting plate is an arc surface. Through holes are penetrated and opened on the top of the lifting plate. Connecting plates are respectively fixed on both sides of the lifting plate. The lower ends of the two connecting plates are respectively vertically welded with support plates. The lifting plate can support the bottom of the electrolytic cell body, thereby improving the installation stability of the electrolytic cell body to be detected.

[0009] As a further solution of the utility model: Threaded holes are formed through both ends of the lifting plate, the lifting plates are linearly distributed in the middle of the support structure, a depression is formed between adjacent lifting plates, the electrolytic cell body includes end plates, screw rods passing through the end plates, and electrode assemblies. The electrode assembly includes a cathode plate, a thick gasket, a diaphragm, a thin gasket, and an anode plate. The lower end of the electrode assembly is connected to a cathode power supply terminal and an anode power supply terminal. The electrode assembly is mutually adapted to the lifting plate, and hydrogen and oxygen are generated by electrolyzing the electrolytic solution.

[0010] As a further solution of the utility model: The electrolyte supply assembly includes an electrolyte tank, the electrolyte tank is fixed to the top of the support plate, a lift pump is communicated with the top of the electrolyte tank, a delivery pipe is adhesively connected to the top of the lift pump, one end of the delivery pipe is communicated with the electrolyte inlet pipe, and when the lift pump is started, the lift pump can introduce the electrolyte into the interior of the electrolyte tank through the delivery pipe.

[0011] As a further solution of the utility model: The exhaust structure includes an exhaust pipe, a solenoid valve is installed at the connection between the exhaust pipe and the reflux channel, an exhaust and extraction machine is connected between the exhaust pipe and the solenoid valve, and the exhaust and extraction machine can exhaust the hydrogen in the gas collecting bottle after the detection is completed, which is convenient for the next measurement.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] 1. In the utility model, hydrogen and electrolyte vapor are introduced into the reflux channel through the hydrogen and electrolyte discharge pipe. The hydrogen rises into the gas collecting bottle, while the electrolyte vapor condenses and flows back into the water receiving seat. By controlling the detection duration and the chloride ion content in the electrolyte, the fatigue strength of the electrolytic cell can be obtained based on the detection results of the gas flowmeter, which not only simplifies the detection steps of the electrolytic cell fatigue, but also reduces the detection cost.

[0014] 2. In the utility model, by introducing nitrogen into the electrolytic cell body, the oxygen and air in the electrolytic cell body can be discharged, weakening the air oxidation intensity in the electrolytic cell body to protect the electrolytic cell body. By connecting a water guide pipe, the electrolyte collected in the water receiving seat can be discharged to the outside of the water receiving seat, reducing the water corrosion intensity in the water receiving seat. Description of the Drawings

[0015] Figure 1 is the three-dimensional structure diagram of the utility model;

[0016] Figure 2 is the utility model Figure 1 the enlarged view of A in;

[0017] Figure 3 is the connection diagram of the support structure of the utility model;

[0018] Figure 4This is the structural diagram of the electrolyte supply component of the present utility model.

[0019] In the figure: 1, water receiving base; 2, water guiding pipe; 3, check valve; 4, load-bearing plate; 5, observation window; 6, connecting plate; 7, support plate; 8, lifting plate; 9, threaded hole; 10, through hole; 11, screw rod; 12, end plate; 13, electrode assembly; 14, hydrogen and electrolyte discharge pipe; 15, condensing pipe; 16, reflux channel; 17, gas collecting bottle; 18, valve; 19, solenoid valve; 20, exhaust pipe; 201, exhaust and intake machine; 21, corrugated pipe; 22, positioning pipe; 23, electrolyte tank; 24, lifting pump; 25, delivery pipe; 26, water supply pipe; 27, nitrogen cylinder; 28, oxygen discharge pipe; 29, electrolyte inlet pipe; 30, gas flow meter; 31, gas valve; 32, air pipe. Specific embodiments

[0020] 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.

[0021] Please refer to Figures 1-4 , the present utility model provides a technical solution: an electrolytic cell fatigue detection test device, including a water receiving base 1. The water receiving base 1 collects the exudate during the detection process after the fatigue of the electrolytic cell, and the collected exudate converges inside the water receiving base 1. After opening the check valve 3, it can be discharged through the water guiding pipe 2. A support structure with a through hole 10 is welded to the top of the water receiving base 1. The support structure is used to support and connect the electrolytic cell body to be detected. The top of the support structure is detachably connected to the electrolytic cell body, and the electrolytic cell body can be detected multiple times. The support structure includes a load-bearing plate 4 and a lifting plate 8, and the top of the load-bearing plate 4 is integrally formed with the lifting plate 8.

[0022] One side of the electrolytic cell body is connected with a hydrogen and electrolyte discharge pipe 14, an oxygen discharge pipe 28, and an electrolyte inlet pipe 29. One side of the support structure is connected with an electrolyte supply component. The electrolyte supply component supplies electrolyte into the electrolytic cell body through the electrolyte inlet pipe 29. The electrolyte supply component includes an electrolyte tank 23. The electrolyte tank 23 is fixed to the top of the support plate 7. The top of the electrolyte tank 23 is communicated with a lifting pump 24. The top of the lifting pump 24 is adhesively connected with a delivery pipe 25. One end of the delivery pipe 25 is communicated with the electrolyte inlet pipe 29. By starting the lifting pump 24, the lifting pump 24 can supply electrolyte into the electrolyte tank 23 through the delivery pipe 25.

[0023] One end of the hydrogen and electrolyte discharge pipe 14 is connected to a condenser pipe 15. The hydrogen and electrolyte discharge pipe 14 is used to discharge the hydrogen generated by electrolysis and the electrolyte vapor carried by the hydrogen. The discharged hydrogen and electrolyte are discharged into the condenser pipe 15 through the hydrogen and electrolyte discharge pipe 14. One end of the condenser pipe 15 is communicated with a reflux channel 16. The top of the reflux channel 16 is communicated with a gas collecting bottle 17 through a valve 18 and a gas flow meter 30. The lower end of the reflux channel 16 is communicated with a corrugated pipe 21. The top of the water receiving seat 1 is penetrated and communicated with a positioning pipe 22. The top of the positioning pipe 22 is connected to the lower end of the corrugated pipe 21. The surface of the reflux channel 16 is connected with an exhaust structure. The exhaust structure includes an exhaust pipe 20. An electromagnetic valve 19 is installed at the connection of the exhaust pipe 20 and the reflux channel 16. A suction and exhaust machine 201 is connected between the exhaust pipe 20 and the electromagnetic valve 19. The suction and exhaust machine 201 can discharge the hydrogen in the gas collecting bottle 17 after the detection is completed, which is convenient for the next measurement. One side of the support structure is fixedly connected with a nitrogen gas cylinder 27. One end of the nitrogen gas cylinder 27 is connected with an air pipe 32 through a gas valve 31.

[0024] Preferably, as Figure 1 shown, the water receiving seat 1 is a steel box body with a hollow interior. A water guide pipe 2 is penetrated and communicated with the side surface of the water receiving seat 1. A check valve 3 is fixed at the connection of the water guide pipe 2 and the water receiving seat 1. The bottom surface of the water guide pipe 2 is tangent to the inner bottom surface of the water receiving seat 1. By connecting the water guide pipe 2, the electrolyte collected in the water receiving seat 1 can be discharged to the outside of the water receiving seat 1, reducing the water corrosion intensity in the water receiving seat 1.

[0025] Preferably, as Figure 3 shown, transparent observation windows 5 are penetrated and fixed on the surfaces of the water receiving seat 1 and the electrolyte tank 23. A water supply pipe 26 is connected to the top of the electrolyte tank 23. The observation window 5 can observe the electrolyte content in the electrolyte tank 23.

[0026] Preferably, as Figure 3 shown, the top of the lifting plate 8 is an arc surface. A through hole 10 is penetrated and opened on the top of the lifting plate 8. Connecting plates 6 are respectively fixed on both sides of the lifting plate 8. The lower ends of the two connecting plates 6 are respectively vertically welded with support plates 7. The lifting plate 8 can support the bottom of the electrolytic cell body, thereby improving the installation stability of the detected electrolytic cell body.

[0027] Preferably, as Figure 3 shown, threaded holes 9 are penetrated and opened at both ends of the lifting plate 8. The lifting plates 8 are linearly distributed in the middle of the support structure. A depression is formed between adjacent lifting plates 8. The electrolytic cell body includes end plates 12, a screw 11 penetrating the end plates 12, and an electrode assembly 13. The electrode assembly 13 includes a cathode plate, a thick gasket, a diaphragm, a thin gasket, and an anode plate. The lower end of the electrode assembly 13 is connected with a cathode power supply end box and an anode power supply end. The electrode assembly 13 and the lifting plate 8 are mutually adapted. The electrode assembly 13 generates hydrogen and oxygen by electrolyzing the electrolyte.

[0028] Working principle: During detection, detection electrolyte is introduced into the electrolyte tank 23 through the water supply pipe 26. The delivery pipe 25 is connected to the electrolyte inlet pipe 29, and the lift pump 24 is started to deliver the electrolyte to the inside of the electrolytic cell body. The detection electrolyte can be pure water or water with a certain chloride ion content. The external power supply is connected, and a water electrolysis reaction occurs inside the electrolytic cell body. The generated hydrogen carries a certain amount of water vapor into the inside of the hydrogen and electrolyte discharge pipe 14. The hydrogen will rise into the gas collecting bottle 17, and the electrolyte vapor will condense and flow back to be collected in the water receiving seat 1. By controlling the reaction time, when the electrolysis reaction stops, the valve 18 is closed. The hydrogen flow rate result is displayed by the gas flow meter 30. By comparing the detection result with the preset standard result, the difference generated after the comparison can be used to judge the fatigue degree of the electrolytic cell. Under the condition that the reaction conditions such as reaction time, reaction temperature, and electrolyte quality are the same, the more hydrogen is generated, the smaller the fatigue strength of the electrolytic cell. By comparing the standard reaction result or the data of past detection results, on the one hand, the fatigue degree of the electrolytic cell can be judged, and on the other hand, the change rate of the fatigue of the electrolytic cell can be judged, providing a basis for the daily inspection and maintenance of the electrolytic cell;

[0029] After the detection is completed, by introducing nitrogen into the electrolytic cell body, the air oxidation intensity inside the electrolytic cell body can be weakened to protect the electrolytic cell body.

[0030] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variation thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0031] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An electrolytic cell fatigue detection test device, including a water-bearing seat (1), characterized in that, A support structure with a through-hole (10) is welded to the top of the water receiving base (1). The top of the support structure is detachably connected to the electrolytic cell body. One side of the electrolytic cell body is connected to a hydrogen and electrolyte discharge pipe (14), an oxygen discharge pipe (28), and an electrolyte inlet pipe (29). One side of the support structure is connected to an electrolyte supply assembly. The electrolyte supply assembly passes electrolyte into the electrolytic cell body through the electrolyte inlet pipe (29). One end of the hydrogen and electrolyte discharge pipe (14) is connected to a condenser tube (15). One end of the condenser tube (15) communicates with a reflux channel (16). The top of the reflux channel (16) is connected to a gas flowmeter (30) through a valve (18) and is connected to a gas collecting bottle (17). The lower end of the reflux channel (16) communicates with a corrugated pipe (21). The top of the water receiving base (1) is penetrated and communicated with a positioning pipe (22). The top of the positioning pipe (22) is connected to the lower end of the corrugated pipe (21). An exhaust structure is connected to the surface of the reflux channel (16). One side of the support structure is fixedly connected to a nitrogen gas cylinder (27). One end of the nitrogen gas cylinder (27) is connected to an air pipe (32) through a gas valve (31).

2. The electrolytic cell fatigue detection test device according to claim 1, wherein: The water receiving base (1) is a steel box body with a hollow interior. A water guide pipe (2) penetrates and communicates with the side surface of the water receiving base (1). A check valve (3) is fixed at the connection between the water guide pipe (2) and the water receiving base (1). The bottom surface of the water guide pipe (2) is tangent to the inner bottom surface of the water receiving base (1).

3. An electrolytic cell fatigue detection test device according to claim 1, characterized in that: Observation windows (5) made of transparent materials are fixedly penetrated on the surfaces of the water receiving base (1) and the electrolyte tank (23). A water supply pipe (26) is connected to the top of the electrolyte tank (23).

4. An electrolytic cell fatigue detection test device according to claim 1, characterized in that: The support structure includes a load-bearing plate (4) and a lifting plate (8). The top of the load-bearing plate (4) is integrally formed with the lifting plate (8). The top of the lifting plate (8) is an arc surface. The through-hole (10) is penetrated and opened on the top of the lifting plate (8). Connecting plates (6) are respectively fixed on both sides of the lifting plate (8). The lower ends of the two connecting plates (6) are respectively vertically welded with support plates (7).

5. An electrolytic cell fatigue detection test device according to claim 4, characterized in that: Threaded holes (9) are penetrated and opened at both ends of the lifting plate (8). The lifting plates (8) are linearly distributed in the middle of the support structure. A depression is formed between adjacent lifting plates (8). The electrolytic cell body includes end plates (12), a screw rod (11) penetrating the end plates (12), and an electrode assembly (13). The electrode assembly (13) includes a cathode plate, a thick gasket, a diaphragm, a thin gasket, and an anode plate. The lower end of the electrode assembly (13) is connected to a cathode power supply terminal and an anode power supply terminal. The electrode assembly (13) is mutually adapted to the lifting plate (8).

6. The electrolytic cell fatigue detection test device according to claim 5, characterized in that: The electrolyte supply assembly includes an electrolyte tank (23). The electrolyte tank (23) is fixed to the top of the support plate (7). A lifting pump (24) is communicated with the top of the electrolyte tank (23). A delivery pipe (25) is glued and connected to the top of the lifting pump (24). One end of the delivery pipe (25) is communicated with the electrolyte inlet pipe (29).

7. An electrolytic cell fatigue detection test device according to claim 6, characterized in that: The exhaust structure includes an exhaust pipe (20). A solenoid valve (19) is installed at the connection between the exhaust pipe (20) and the reflux channel (16). An exhaust pump (201) is connected between the exhaust pipe (20) and the solenoid valve (19).

Images