Active hydrogen removal device for electrolyzer

Abstract

The present application discloses an active hydrogen discharge device applied to an electrolyzer, which includes an electrolyzer body, an active hydrogen discharge pipe is connected on the top wall of the electrolyzer body, a liquid storage tank body is arranged below the electrolyzer body, a discharge pipe is connected between the liquid storage tank body and the electrolyzer body, a blower is arranged on one side of the liquid storage tank body, a blast pipe is connected between the air outlet of the blower and the side wall of the liquid storage tank body, the blast pipe extends into the liquid storage tank body and extends below the liquid surface, an auxiliary hydrogen discharge pipe is connected on the top wall of the liquid storage tank body, and one end of the auxiliary hydrogen discharge pipe away from the liquid storage tank body is connected to the active hydrogen discharge pipe. The technical effect of the present application is: the entire process of discharging hydrogen makes the hydrogen not contact with the blower, thereby reducing the risk of explosion and improving safety.

Description

Technical Field

[0001] The present application relates to the field of electrolyzers, and in particular to an active hydrogen discharge device applied to an electrolyzer. Background Art

[0002] As an important clean energy source, hydrogen has broad application prospects. However, when hydrogen is mixed with oxygen, it is flammable and explosive when exposed to open flames. Therefore, there are certain safety hazards in the use of hydrogen.

[0003] At present, hydrogen is mostly produced by electrolysis of water. In the electrolyzer, direct current is applied to the electrolyte, and the following reactions occur at the cathode and anode respectively:

[0004] (1) Cathode reaction. H+ (produced after water ionization) in the electrolyte is attracted by the cathode and moves to the cathode, accepting electrons and releasing hydrogen. The discharge reaction is: 4e+4H2O=2H2↑+4OH-;

[0005] (2) Anode reaction. OH- in the electrolyte is attracted by the anode and moves to the anode, finally releasing electrons to become water and oxygen. The discharge reaction is: 4OH-=2H2O+O2↑+4e;

[0006] Therefore, the total reaction equation of the anode and cathode is: 2H2O=2H2↑+O2↑.

[0007] After hydrogen is produced in the electrolytic cell, it will float upward due to its light specific gravity. In order to quickly and conveniently discharge the hydrogen from the electrolytic cell, an exhaust fan is usually used to extract the hydrogen. Since hydrogen is mixed with oxygen, and a large amount of external air is mixed into the hydrogen during the exhaust process, the oxygen concentration increases. When passing through the exhaust fan, it is very easy to explode when encountering electric sparks, posing certain safety hazards. Summary of the invention

[0008] The purpose of the present application is to provide an active hydrogen discharge device for an electrolyzer, which has the advantages that the hydrogen does not come into contact with the blower during the entire hydrogen discharge process, thereby reducing the risk of explosion and improving safety.

[0009] The above technical purpose of the present application is achieved through the following technical solutions: an active hydrogen discharge device applied to an electrolytic cell, comprising an electrolytic cell body, the top wall of the electrolytic cell body being connected to an active hydrogen discharge pipe, a liquid storage tank body being arranged below the electrolytic cell body, a discharge pipe being connected between the liquid storage tank body and the electrolytic cell body, a blower being arranged on one side of the liquid storage tank body, a blast pipe being connected between the air outlet of the blower and the side wall of the liquid storage tank body, the blast pipe extending into the liquid storage tank body and extending below the liquid surface, an auxiliary hydrogen discharge pipe being connected to the top wall of the liquid storage tank body, and an end of the auxiliary hydrogen discharge pipe away from the liquid storage tank body being connected to the active hydrogen discharge pipe.

[0010] Through the above technical scheme, part of the hydrogen prepared in the electrolytic cell body is actively discharged from the active hydrogen discharge pipe, and part of the prepared hydrogen is mixed in the electrolyte and discharged into the liquid storage tank body through the discharge pipe together with the electrolyte. During this process, the blower starts to work and continuously blows air into the liquid storage tank body through the blower pipe. The air enters below the liquid level inside the liquid storage tank body and will continuously disturb the electrolyte, which helps the hydrogen mixed in the electrolyte to quickly precipitate from the electrolyte and gather together with the air in the space above the liquid level inside the liquid storage tank body, and finally be discharged from the auxiliary hydrogen discharge pipe together with the air. For the entire process of discharging hydrogen, the hydrogen does not contact the blower, thereby reducing the risk of explosion and improving safety.

[0011] The present application is further configured as follows: the liquid discharge pipe is connected to a hydrogen evolution pipe inclined upward, and one end of the hydrogen evolution pipe away from the liquid discharge pipe is connected to an auxiliary hydrogen discharge pipe.

[0012] Through the above technical solution, in the process of the electrolyte being discharged from the electrolytic cell body to the liquid storage cell body through the discharge pipe, part of the hydrogen mixed in the electrolyte will be precipitated from the electrolyte when passing through the hydrogen evolution tube and discharged into the auxiliary hydrogen discharge tube through the hydrogen evolution tube, thereby improving the hydrogen discharge efficiency.

[0013] The present application is further configured as follows: a partition is provided in the auxiliary hydrogen exhaust pipe to seal the auxiliary hydrogen exhaust pipe, the partition is flush with the inner bottom wall of the active hydrogen exhaust pipe, the partition is hingedly arranged on the inner wall of the connecting portion of the auxiliary hydrogen exhaust pipe and the active hydrogen exhaust pipe, and a limiting arc plate is arranged on the peripheral side of the partition;

[0014] When the partition closes the auxiliary hydrogen exhaust pipe, the side of the limiting arc plate facing away from the partition contacts the inner wall of the auxiliary hydrogen exhaust pipe;

[0015] When the partition is lifted up by the airflow and turned upward, the end wall of the limiting arc plate away from the partition hits the inner wall around the connecting part of the auxiliary hydrogen exhaust pipe and the active hydrogen exhaust pipe;

[0016] The limiting arc plate is provided with a through hydrogen discharge hole for hydrogen flow.

[0017] Through the above technical scheme, when the blower does not start working, the hydrogen prepared in the electrolyzer body is discharged only through the active hydrogen exhaust pipe, and the partition flips downward under the action of gravity, and closes the auxiliary hydrogen exhaust pipe, thereby reducing the hydrogen from being discharged into the liquid storage tank body through the auxiliary hydrogen exhaust pipe; and when the blower starts working, the partition is lifted up and flipped upward under the action of the airflow. At this time, the partition will stably maintain an inclined state due to the restriction of the limiting arc plate, thereby playing a good role in guiding flow, reducing the airflow in the auxiliary hydrogen exhaust pipe from rushing into the active hydrogen exhaust pipe, causing the hydrogen discharged from the active hydrogen exhaust pipe to be blown back into the electrolyzer body.

[0018] The present application is further configured as follows: a balancing sheet is provided on the side of the tube wall of the auxiliary hydrogen exhaust pipe which is located away from the hinge point of the partition, the balancing sheet is located below the partition, the balancing sheet penetrates the tube wall of the auxiliary hydrogen exhaust pipe, and the balancing sheet is hingedly provided with the tube wall of the auxiliary hydrogen exhaust pipe;

[0019] When the balance piece is in a natural state, the balance piece maintains a horizontal state;

[0020] When the partition seals the auxiliary hydrogen exhaust pipe, the partition is placed on the balance sheet, and the portion of the balance sheet located outside the auxiliary hydrogen exhaust pipe is tilted upward.

[0021] Through the above technical solution, when the partition flips downward under the action of gravity and closes the auxiliary hydrogen exhaust pipe, the partition is placed on the balance sheet and presses the balance sheet downward, causing the part of the balance sheet outside the auxiliary hydrogen exhaust pipe to tilt upward; when the airflow lifts the partition, the balance sheet will remain in a horizontal state, so that personnel can accurately know whether the partition is lifted by the airflow by observing the state of the balance sheet, so that the hydrogen in the auxiliary hydrogen exhaust pipe can be discharged smoothly; and when the blower has been working for a period of time, it is observed that the balance sheet is still in a tilted state, which proves that the partition is not lifted by the airflow. At this time, the partition may be stuck. During this process, personnel can move the balance sheet to move the partition so that the partition can be smoothly flipped upward.

[0022] The present application is further configured as follows: the drain pipe is connected to a gas-liquid separation pipe having a diameter larger than that of the drain pipe, a valve is installed at the portion of the drain pipe below the gas-liquid separation pipe, and the hydrogen evolution pipe is connected to the upper portion of the side wall of the gas-liquid separation pipe.

[0023] Through the above technical solution, when the electrolyte is discharged from the electrolytic cell body to the liquid storage tank body through the drain pipe, the personnel briefly closes the valve so that a certain amount of electrolyte can be stored in the gas-liquid separation tube. Thereafter, the personnel opens the valve again. As a result, the electrolyte will continue to stay in the gas-liquid separation tube for a period of time during the process of passing through the drain pipe, so that hydrogen can be precipitated from the electrolyte and discharged into the auxiliary hydrogen discharge pipe through the hydrogen evolution pipe, thereby effectively improving the hydrogen emission efficiency.

[0024] The present application is further configured as follows: a monitoring rod is arranged inside the gas-liquid separation tube in the vertical direction, a through hole is opened on the top wall of the gas-liquid separation tube for the monitoring rod to extend out, a limiting plate is arranged on the end of the monitoring rod extending out of the gas-liquid separation tube, the diameter of the limiting plate is larger than the aperture of the through hole, and the limiting plate is arranged in contact with the top wall of the gas-liquid separation tube, and a floating plate is arranged on the end of the monitoring rod located in the gas-liquid separation tube, and the floating plate is flush with the inner bottom wall of the hydrogen evolution tube.

[0025] Through the above technical solution, when the valve is closed and the electrolyte is stored in the gas-liquid separation tube, the personnel can accurately know the amount of electrolyte currently stored in the gas-liquid separation tube by observing whether the monitoring rod is lifted up due to the buoyancy of the floating plate by the liquid surface. Once the monitoring rod is observed to be lifted up, the valve is opened immediately to prevent the electrolyte from blocking the hydrogen evolution tube and affecting the normal discharge of hydrogen.

[0026] The present application is further configured as follows: a dispersing device for dispersing the electrolytic solution is provided at a portion of the liquid discharge pipe located above the gas-liquid separation pipe and in communication with the gas-liquid separation pipe.

[0027] Through the above technical solution, the electrolyte is dispersed during the process of the electrolyte flowing through the dispersion device, thereby facilitating the better precipitation of hydrogen mixed in the electrolyte, thereby improving the efficiency of hydrogen precipitation.

[0028] The present application is further configured as follows: the dispersion device includes a horizontally arranged rotating shaft and impellers evenly arranged around the rotating shaft, and both ends of the rotating shaft are rotatably arranged on the inner walls of both sides of the discharge pipe.

[0029] Through the above technical solution, when the electrolyte is discharged from the drain pipe to the gas-liquid separation pipe, it flows through the dispersion device. When the electrolyte continues to hit the impeller, it will drive the shaft to rotate. In this process, the electrolyte is dispersed, thereby facilitating better precipitation of hydrogen mixed in the electrolyte, thereby improving the efficiency of hydrogen precipitation.

[0030] The present application is further configured as follows: a blowing pipe is connected between the gas-liquid separation pipe and the blast pipe, the connecting portion between the blowing pipe and the gas-liquid separation pipe is located above the liquid level inside the gas-liquid separation pipe, and a stop valve is installed on the blowing pipe.

[0031] Through the above technical solution, the stop valve is used to control the circulation of the blowing pipe. When discharging hydrogen, the personnel can open the stop valve. At this time, the air blown in the blast pipe will be blown into the gas-liquid separation pipe through the blowing pipe, so as to quickly blow the hydrogen released in the gas-liquid separation pipe into the hydrogen evolution pipe for discharge.

[0032] The present application is further configured as follows: the bottom wall of the blower pipe located on the side of the blower pipe facing the blower is connected to a safety pipe, and mutually staggered wind shielding plates are arranged in the safety pipe.

[0033] Through the above technical scheme, the wind shields staggered in the safety tube are used to block the air to reduce the amount of air blown in the blower pipe leaking out of the safety tube, and when the liquid level of the electrolyte inside the gas-liquid separation tube overflows the blower pipe, the electrolyte will pass through the blower pipe and the blower pipe and be discharged from the safety tube, thereby reducing the electrolyte flowing to the blower, causing the blower to be damaged by water.

[0034] In summary, this application has the following beneficial effects:

[0035] 1. During the entire process of hydrogen emission, hydrogen does not come into contact with the blower, thereby reducing the risk of explosion and improving safety;

[0036] 2. When the electrolyte passes through the hydrogen evolution tube, part of the hydrogen mixed in the electrolyte will be precipitated from the electrolyte and discharged into the auxiliary hydrogen discharge pipe through the hydrogen evolution tube, thereby improving the hydrogen discharge efficiency;

[0037] 3. The partition is lifted up under the action of the airflow, so that the partition can be stably maintained in an inclined state, thereby playing a good role in guiding the flow, reducing the airflow in the auxiliary hydrogen exhaust pipe from rushing into the active hydrogen exhaust pipe, causing the hydrogen discharged from the active hydrogen exhaust pipe to blow back into the electrolyzer body. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 It is a schematic diagram of the overall structure of the first embodiment.

[0039] Figure 2 It is a schematic diagram of the overall structure of the second embodiment.

[0040] Figure 3 It is a schematic diagram of the structure of the partition inside the auxiliary hydrogen exhaust pipe according to the second embodiment.

[0041] Figure 4 This is a schematic diagram of the structure of the gas-liquid separation tube according to the second embodiment.

[0042] Figure 5 This is a schematic diagram of the structure of the safety tube in the second embodiment.

[0043] Figure numerals: 1. electrolytic cell body; 2. active hydrogen discharge pipe; 3. liquid storage tank body; 4. liquid discharge pipe; 5. blower; 6. blast pipe; 7. auxiliary hydrogen discharge pipe; 8. hydrogen evolution pipe; 9. partition; 10. limit arc plate; 11. hydrogen discharge hole; 12. balance plate; 13. gas-liquid separation tube; 14. valve; 15. monitoring rod; 16. perforation; 17. limit plate; 18. floating plate; 19. dispersion device; 191. rotating shaft; 192. impeller; 20. blowing pipe; 21. stop valve; 22. safety pipe; 23. wind shield; 24. steel structure platform. DETAILED DESCRIPTION

[0044] The present application is further described in detail below in conjunction with the accompanying drawings.

[0045] Example 1: An active hydrogen discharge device for an electrolyzer, referring to Figure 1 , including an electrolytic cell body 1, the inner cavity of the electrolytic cell body 1 is in a closed state when in working state, the electrolytic cell body 1 is erected above the ground through a steel structure platform 24 with a ladder, and an active hydrogen exhaust pipe 2 is connected to the top wall of the electrolytic cell body 1.

[0046] Reference Figure 1 A liquid storage tank body 3 is arranged below the electrolytic tank body 1, a drain pipe 4 is connected between the lower part of the side wall of the electrolytic tank body 1 and the top wall of the liquid storage tank body 3, a blower 5 is arranged on one side of the liquid storage tank body 3, a blast pipe 6 is connected between the air outlet of the blower 5 and the upper part of the side wall of the liquid storage tank body 3, the blast pipe 6 extends into the liquid storage tank body 3, and bends downward to extend below the liquid surface inside the liquid storage tank body 3, an auxiliary hydrogen discharge pipe 7 is connected to the top wall of the liquid storage tank body 3, one end of the auxiliary hydrogen discharge pipe 7 away from the liquid storage tank body 3 is connected to the active hydrogen discharge pipe 2, and a hydrogen evolution pipe 8 is connected between the drain pipe 4 and the auxiliary hydrogen discharge pipe 7, and the hydrogen evolution pipe 8 is arranged upward from the drain pipe 4 to the auxiliary hydrogen discharge pipe 7.

[0047] Reference Figure 1 When hydrogen is prepared in the electrolytic cell body 1, part of the prepared hydrogen will be actively discharged from the active hydrogen discharge pipe 2, and part of the prepared hydrogen will be mixed in the electrolyte and discharged into the liquid storage tank body 3 through the discharge pipe 4 together with the electrolyte. In this process, the blower 5 starts to work and continuously blows air into the liquid storage tank body 3 through the blast pipe 6. After the air enters below the liquid level inside the liquid storage tank body 3, it will continuously disturb the electrolyte, which helps the hydrogen mixed in the electrolyte to quickly precipitate from the electrolyte, and gather together with the air in the space above the liquid level inside the liquid storage tank body 3, and finally be discharged from the auxiliary hydrogen discharge pipe 7 together with the air; and in the process of the electrolyte flowing through the discharge pipe 4, when passing through the hydrogen evolution pipe 8, part of the hydrogen mixed in the electrolyte will be precipitated from the electrolyte, and then discharged into the auxiliary hydrogen discharge pipe 7 through the hydrogen evolution pipe 8, and discharged together with the air flow in the auxiliary hydrogen discharge pipe 7.

[0048] Reference Figure 1 The hydrogen emission efficiency can be effectively improved by jointly emitting hydrogen through the active hydrogen emission pipe 2, the auxiliary hydrogen emission pipe 7 and the hydrogen evolution pipe 8. In addition, during the entire hydrogen emission process, the hydrogen does not contact the blower 5, thereby reducing the risk of explosion and improving safety.

[0049] Working principle: part of the hydrogen prepared in the electrolytic cell body 1 will be actively discharged from the active hydrogen discharge pipe 2, and part of the prepared hydrogen will be mixed in the electrolyte and discharged into the liquid storage tank body 3 through the discharge pipe 4 together with the electrolyte. During this process, the blower 5 starts to work and continuously blows air into the liquid storage tank body 3 through the blower pipe 6. After the air enters below the liquid level inside the liquid storage tank body 3, it will continuously disturb the electrolyte, which helps the hydrogen mixed in the electrolyte to quickly precipitate from the electrolyte, and gather together with the air in the space above the liquid level inside the liquid storage tank body 3, and finally be discharged from the auxiliary hydrogen discharge pipe 7 together with the air.

[0050] Example 2: An active hydrogen discharge device for an electrolyzer, referring to Figure 2 and Figure 3 A partition plate 9 is arranged inside the auxiliary hydrogen exhaust pipe 7. The partition plate 9 is circular and is hingedly arranged on the inner wall of the connecting portion of the auxiliary hydrogen exhaust pipe 7 and the active hydrogen exhaust pipe 2. When the partition plate 9 is in a horizontal state, the partition plate 9 closes the auxiliary hydrogen exhaust pipe 7, and at this time the partition plate 9 is flush with the inner bottom wall of the active hydrogen exhaust pipe 2.

[0051] Reference Figure 3 , a limiting arc plate 10 is fixedly arranged around the upper end surface of the partition 9. When the partition 9 is in a horizontal state and closes the auxiliary hydrogen discharge pipe 7, the side of the limiting arc plate 10 away from the partition 9 hits the inner wall of the auxiliary hydrogen discharge pipe 7, thereby limiting the partition 9 from continuing to rotate downward, so that the partition 9 can stably close the auxiliary hydrogen discharge pipe 7; and when the partition 9 is lifted up by the airflow and turned upward, the end wall of the limiting arc plate 10 away from the partition 9 hits the inner wall around the connecting part of the auxiliary hydrogen discharge pipe 7 and the active hydrogen discharge pipe 2, thereby blocking the partition 9 from continuing to rotate toward the active hydrogen discharge pipe 2, so as to prevent the partition 9 from closing the active hydrogen discharge pipe 2, causing the hydrogen inside the active hydrogen discharge pipe 2 to be unable to be discharged normally. In addition, a through hydrogen discharge hole 11 is opened on the limiting arc plate 10 for hydrogen flow, so as to prevent the limiting arc plate 10 from blocking the active hydrogen discharge pipe 2.

[0052] Reference Figure 2 and Figure 3Therefore, when the blower 5 does not start working, the hydrogen prepared in the electrolytic cell body 1 is discharged only through the active hydrogen discharge pipe 2. At this time, the partition 9 flips downward under the action of gravity and closes the auxiliary hydrogen discharge pipe 7, thereby reducing the situation where the hydrogen is discharged back into the liquid storage tank body 3 through the auxiliary hydrogen discharge pipe 7; and when the blower 5 starts working, the partition 9 is lifted up and flipped upward under the action of the airflow. At this time, the partition 9 will stably maintain an inclined state due to the restriction of the limiting arc plate 10, thereby playing a good role in guiding the flow, reducing the airflow in the auxiliary hydrogen discharge pipe 7 from rushing into the active hydrogen discharge pipe 2, causing the hydrogen discharged from the active hydrogen discharge pipe 2 to be blown back into the electrolytic cell body 1.

[0053] Reference Figure 3 A balance sheet 12 is provided on the wall of the auxiliary hydrogen discharge pipe 7 on the side of the partition 9 away from the hinge point. The balance sheet 12 is located below the partition 9, and the balance sheet 12 penetrates the wall of the auxiliary hydrogen discharge pipe 7 and is hinged to the wall of the auxiliary hydrogen discharge pipe 7. When the balance sheet 12 is in a natural state and is not pressed by an external force, the balance sheet 12 will stably maintain a horizontal state, and when the partition 9 is flipped downward to close the auxiliary hydrogen discharge pipe 7, the partition 9 will be placed on the balance sheet 12. At this time, the part of the balance sheet 12 located in the auxiliary hydrogen discharge pipe 7 is pressed by the partition 9 and rotates downward. In this process, the part of the balance sheet 12 located outside the auxiliary hydrogen discharge pipe 7 will tilt upward, so that personnel can accurately know whether the partition 9 is lifted by the airflow by observing the state of the balance sheet 12, so that the hydrogen in the auxiliary hydrogen discharge pipe 7 can be discharged smoothly.

[0054] Reference Figure 2 and Figure 3 After the blower 5 has been working for a period of time, the personnel observe that the balance sheet 12 is still in a tilted state, which proves that the partition 9 is not lifted up by the airflow. At this time, the partition 9 may be stuck. Then the personnel can move the balance sheet 12 to move the partition 9 so that the partition 9 can be lifted up by the airflow and flipped upward smoothly.

[0055] Reference Figure 2 A gas-liquid separation tube 13 is connected to the discharge pipe 4. The diameter of the gas-liquid separation tube 13 is larger than that of the discharge pipe 4, and the gas-liquid separation tube 13 is coaxially arranged with the discharge pipe 4. The hydrogen evolution tube 8 is connected to the upper part of the side wall of the gas-liquid separation tube 13. A manual valve 14 is installed on the part of the discharge pipe 4 below the gas-liquid separation tube 13. The valve 14 is manually controlled to improve safety and reduce the risk of explosion caused by hydrogen encountering electric sparks.

[0056] Reference Figure 4In addition, a monitoring rod 15 is arranged in the vertical direction inside the gas-liquid separation tube 13, and a through hole 16 is opened on the top wall of the gas-liquid separation tube 13 for the top end of the monitoring rod 15 to pass through. A limiting piece 17 with a diameter larger than the aperture of the through hole 16 is fixedly arranged on the end of the monitoring rod 15 passing through the gas-liquid separation tube 13, and a floating plate 18 is fixedly arranged on the end of the monitoring rod 15 located in the gas-liquid separation tube 13. Under the action of gravity, the monitoring rod 15 falls downward, so that the limiting piece 17 is placed on the top wall of the gas-liquid separation tube 13, and at this time, the floating plate 18 is flush with the inner bottom wall of the lower end of the hydrogen evolution tube 8.

[0057] Reference Figure 2 and Figure 4 When the electrolyte is discharged from the electrolytic cell body 1 to the liquid storage tank body 3 through the drain pipe 4, the personnel close the valve 14 briefly so that the electrolyte can be stored in the gas-liquid separation tube 13. During this process, the personnel need to observe the dynamics of the monitoring rod 15 at all times. Once the monitoring rod 15 is observed to be lifted up, it indicates that the liquid level of the electrolyte stored in the gas-liquid separation tube 13 has reached the position of the floating plate 18, that is, the position of the lowest end of the hydrogen evolution tube 8. The personnel immediately open the valve 14 to prevent the electrolyte from continuing to rise and blocking the hydrogen evolution tube 8, affecting the normal discharge of hydrogen. By setting the gas-liquid separation tube 13, the electrolyte is allowed to stay in the gas-liquid separation tube 13 for a period of time during the process of passing through the drain pipe 4, so that hydrogen can be precipitated from the electrolyte and discharged into the auxiliary hydrogen discharge tube 7 through the hydrogen evolution tube 8, thereby effectively improving the discharge efficiency of hydrogen.

[0058] Reference Figure 4 A dispersion device 19 is provided at the position where the electrolyte flows into the gas-liquid separation tube 13 through the discharge pipe 4, so as to disperse the electrolyte. The dispersion device 19 includes a horizontally arranged rotating shaft 191 and impellers 192 evenly arranged around the rotating shaft 191. The two ends of the rotating shaft 191 are respectively rotatably arranged on the inner walls on both sides of the discharge pipe 4. Therefore, when the electrolyte flows from the discharge pipe 4 through the gas-liquid separation tube 13, the electrolyte continuously hits the impeller 192, which will drive the rotating shaft 191 to rotate. In this process, the electrolyte is dispersed, so as to facilitate the better precipitation of hydrogen mixed in the electrolyte, so as to improve the efficiency of hydrogen precipitation.

[0059] Reference Figure 2A blowing pipe 20 is connected between the gas-liquid separation pipe 13 and the blast pipe 6. The connecting portion between the blowing pipe 20 and the gas-liquid separation pipe 13 is located above the liquid level inside the gas-liquid separation pipe 13. The connecting portion between the blowing pipe 20 and the blast pipe 6 is located at a position where the blast pipe 6 is placed outside the liquid storage tank body 3. A manual stop valve 21 is installed on the blowing pipe 20. The manual stop valve 21 is used to control the circulation of the blowing pipe 20. When hydrogen is discharged from the liquid storage tank body 3, the personnel can open the stop valve 21. At this time, the air blown in the blast pipe 6 will be blown into the gas-liquid separation pipe 13 through the blowing pipe 20, so that the hydrogen precipitated from the electrolyte in the gas-liquid separation pipe 13 can be quickly blown into the hydrogen evolution pipe 8, so that the hydrogen can be quickly discharged.

[0060] Reference Figure 2 and Figure 5 In addition, a safety tube 22 is connected to the bottom wall of the blast tube 6. The safety tube 22 is located on the side of the blowing tube 20 facing the blower 5. A plurality of wind shields 23 are arranged at intervals in the safety tube 22. The wind shields 23 are used to block the air to reduce the leakage of the air blown in the blast tube 6 from the safety tube 22; and when the liquid level of the electrolyte in the gas-liquid separation tube 13 overflows the blowing tube 20, the electrolyte passes through the blowing tube 20 and the blast tube 6 and is discharged from the safety tube 22, thereby reducing the electrolyte from flowing to the blower 5, causing the blower 5 to be damaged by moisture.

[0061] The embodiments of this specific implementation method are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. Therefore, all equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An active hydrogen discharge device for an electrolytic cell, comprising an electrolytic cell body (1), characterized in that: The top wall of the electrolytic cell body (1) is connected to an active hydrogen discharge pipe (2); a liquid storage tank body (3) is arranged below the electrolytic cell body (1); a liquid discharge pipe (4) is connected between the liquid storage tank body (3) and the electrolytic cell body (1); a blower (5) is arranged on one side of the liquid storage tank body (3); a blast pipe (6) is connected between the air outlet of the blower (5) and the side wall of the liquid storage tank body (3); the blast pipe (6) extends into the liquid storage tank body (3) and extends below the liquid surface; an auxiliary hydrogen discharge pipe (7) is connected to the top wall of the liquid storage tank body (3); and one end of the auxiliary hydrogen discharge pipe (7) away from the liquid storage tank body (3) is connected to the active hydrogen discharge pipe (2); A partition plate (9) is arranged inside the auxiliary hydrogen exhaust pipe (7) to seal the auxiliary hydrogen exhaust pipe (7); the partition plate (9) is flush with the inner bottom wall of the active hydrogen exhaust pipe (2); the partition plate (9) is hingedly arranged on the inner wall of the connecting portion between the auxiliary hydrogen exhaust pipe (7) and the active hydrogen exhaust pipe (2); and a limiting arc plate (10) is arranged on the peripheral side of the partition plate (9); When the partition (9) closes the auxiliary hydrogen exhaust pipe (7), the side of the limiting arc plate (10) facing away from the partition (9) contacts the inner wall of the auxiliary hydrogen exhaust pipe (7); When the partition (9) is lifted up by the airflow and turned upward, the end wall of the limiting arc plate (10) facing away from the partition (9) abuts against the inner wall around the connecting part of the auxiliary hydrogen exhaust pipe (7) and the active hydrogen exhaust pipe (2); The limiting arc plate (10) is provided with a through hydrogen discharge hole (11) for hydrogen gas to flow; A balancing sheet (12) is provided on the side of the tube wall of the auxiliary hydrogen exhaust pipe (7) which is located away from the hinge point of the partition (9); the balancing sheet (12) is located below the partition (9); the balancing sheet (12) penetrates the tube wall of the auxiliary hydrogen exhaust pipe (7); and the balancing sheet (12) is hingedly arranged with the tube wall of the auxiliary hydrogen exhaust pipe (7); When the balance sheet (12) is in a natural state, the balance sheet (12) maintains a horizontal state; When the partition (9) closes the auxiliary hydrogen exhaust pipe (7), the partition (9) is placed on the balance sheet (12), and the portion of the balance sheet (12) located outside the auxiliary hydrogen exhaust pipe (7) is tilted upward.

2. The active hydrogen discharge device for electrolyzer according to claim 1, characterized in that: The liquid discharge pipe (4) is connected to a hydrogen evolution pipe (8) which is inclined upward, and one end of the hydrogen evolution pipe (8) which is away from the liquid discharge pipe (4) is connected to an auxiliary hydrogen discharge pipe (7).

3. The active hydrogen discharge device for electrolyzer according to claim 2, characterized in that: The liquid discharge pipe (4) is connected to a gas-liquid separation pipe (13) having a diameter greater than that of the liquid discharge pipe (4); a valve (14) is installed at a portion of the liquid discharge pipe (4) located below the gas-liquid separation pipe (13); and the hydrogen evolution pipe (8) is connected to an upper portion of a side wall of the gas-liquid separation pipe (13).

4. The active hydrogen discharge device for electrolyzer according to claim 3 is characterized in that: A monitoring rod (15) is arranged inside the gas-liquid separation tube (13) in a vertical direction; a through hole (16) for the monitoring rod (15) to extend out is provided on the top wall of the gas-liquid separation tube (13); a limiting plate (17) is arranged on the end of the monitoring rod (15) extending out of the gas-liquid separation tube (13); the diameter of the limiting plate (17) is larger than the aperture of the through hole (16); and the limiting plate (17) is arranged to abut against the top wall of the gas-liquid separation tube (13); a floating plate (18) is arranged on the end of the monitoring rod (15) located inside the gas-liquid separation tube (13); and the floating plate (18) is flush with the inner bottom wall of the hydrogen evolution tube (8).

5. The active hydrogen discharge device for electrolyzer according to claim 3 is characterized in that: A dispersing device (19) for dispersing the electrolytic solution is provided at a portion of the liquid discharge pipe (4) located above the gas-liquid separation pipe (13) and in communication with the gas-liquid separation pipe (13).

6. The active hydrogen discharge device for electrolyzer according to claim 5, characterized in that: The dispersion device (19) comprises a horizontally arranged rotating shaft (191) and impellers (192) evenly arranged around the rotating shaft (191), and the two ends of the rotating shaft (191) are rotatably arranged on the inner walls of the two sides of the discharge pipe (4).

7. The active hydrogen discharge device for electrolyzer according to claim 3 is characterized in that: A blowing pipe (20) is connected between the gas-liquid separation pipe (13) and the blast pipe (6); the connecting portion between the blowing pipe (20) and the gas-liquid separation pipe (13) is located above the liquid level inside the gas-liquid separation pipe (13); and a stop valve (21) is installed on the blowing pipe (20).

8. The active hydrogen discharge device for electrolyzer according to claim 7, characterized in that: The bottom wall of the blast pipe (6) located on the side of the blowing pipe (20) facing the blower (5) is connected to a safety pipe (22), and mutually staggered wind shielding pieces (23) are arranged in the safety pipe (22).

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