Hydrogen, oxygen and liquid separation device for preparing green hydrogen

Abstract

The invention discloses an oxyhydrogen gas-liquid separation device for preparing green hydrogen, and belongs to the technical field of oxyhydrogen gas-liquid separation. The separation device comprises a reaction kettle, a cover plate is arranged at the top of the reaction kettle, a proton exchange membrane is vertically and downwards mounted in the middle of the cover plate, and electrode plates are respectively arranged on two sides of the proton exchange membrane; a lifting mechanism is connected to the bottom in the reaction kettle; vibrating mechanisms are mounted on two side surfaces of the proton exchange membrane; the lifting mechanism comprises a lifting auger, a water guide barrel is installed on the outer side of the lifting auger, and water guide openings are formed in the lower end of the water guide barrel at equal intervals; a lifting water outlet is formed in the upper end of the water guide cylinder in the direction towards the electrode plate; according to the device, the proton exchange membrane can be cleaned, the oxyhydrogen gas-liquid separation and filtration efficiency is improved, and the problem that an existing oxyhydrogen gas-liquid separation device is low in efficiency is solved.

Description

Technical Field

[0001] The present invention belongs to the technical field of hydrogen-oxygen gas-liquid separation, and specifically relates to a hydrogen-oxygen gas-liquid separation device for green hydrogen production. Background Art

[0002] As a clean and efficient energy carrier, green hydrogen plays a crucial role in the global energy transition process. Its production is mainly achieved through electrolysis of water using renewable energy. In this process, water is decomposed into hydrogen and oxygen, and a large amount of mixed gas carrying hydrogen, oxygen, and water vapor is generated. Due to the requirements of subsequent application scenarios for hydrogen and oxygen, as well as the requirements for safe storage and transportation, it is necessary to efficiently separate hydrogen, oxygen, and liquid water in the mixed gas.

[0003] Early gas-liquid separation technologies were relatively simple, mostly using the principle of gravity sedimentation, relying on the density difference between gas and liquid to achieve preliminary separation. However, this method has a low separation efficiency and is difficult to effectively remove tiny liquid droplets, unable to meet the requirements for large-scale and high-purity production of green hydrogen. The existing hydrogen-oxygen gas-liquid separation devices for green hydrogen production use a separation technology with a filter medium. The mixed gas can pass through the fiber layer through the fiber filtration channel, and the gas-liquid separation is achieved by the interception and adsorption of liquid droplets by the fibers. However, when using this method, since the fibers are easily blocked, the anti-pollution ability of the membrane is reduced, and the filter medium needs to be frequently replaced; and due to the slow liquid flow rate, the separation efficiency is reduced. Summary of the Invention

[0004] The present invention overcomes the deficiencies of the prior art and provides a hydrogen-oxygen gas-liquid separation device for green hydrogen production; the present invention is realized through the following technical solutions: A hydrogen-oxygen gas-liquid separation device for green hydrogen production includes a reaction kettle. A cover plate is arranged at the top of the reaction kettle. A water inlet pipe and an oxygen discharge pipe are installed on one side side wall of the reaction kettle, and a hydrogen discharge pipe is installed on the other side side wall of the reaction kettle; a proton exchange membrane is vertically installed downward in the middle of the cover plate, and electrode plates are respectively arranged on both sides of the proton exchange membrane; a lifting mechanism is connected to the bottom inside the reaction kettle, and vibration mechanisms are installed on both side surfaces of the proton exchange membrane; the lifting mechanism includes a lifting auger, a water guide cylinder is installed outside the lifting auger, and water guide openings are equidistantly arranged at the lower end of the water guide cylinder; a lifting water outlet is arranged at the upper end of the water guide cylinder in the direction towards the electrode plate; The vibration mechanism includes a fixed plate, a moving plate, an impact rod, an impact plate, and a vibration plate; the bottom of the vibration plate is fixed, the top of the vibration plate is a free end, the vibration plate is attached to the proton exchange membrane, and there is a height difference between the two vibration plates on both sides; on both sides of the top of the proton exchange membrane, fixed plates are provided, and the top of the fixed plates is fixedly connected to the bottom surface of the cover plate; on the opposite sides of the two fixed plates, grooves are provided, and guide columns are fixedly connected along the vertical direction in the grooves. A moving plate is slidably sleeved on the guide columns. A telescopic spring is sleeved outside the guide columns above the moving plate. One end of the telescopic spring is connected to the inner wall of the groove, and the other end of the telescopic spring is connected to the moving plate; and one end of the moving plate extends out of the groove and is connected to a rolling ball in a rolling manner; on both sides of the proton exchange membrane, rotatable worm gears are provided. A sliding groove is provided on the worm gear to cooperate with the rolling ball. The sliding groove includes a coiled arc groove and a vertical straight groove. The top end of the arc groove is communicated with the top end of the straight groove, and the bottom end of the arc groove is communicated with the bottom end of the straight groove; the rolling ball is movably abutted in the sliding groove at the lower end of the worm gear. The moving plate is fixedly connected with an impact rod vertically downward. An impact plate is horizontally arranged below the impact rod. The inner edge of the impact plate is fixedly connected to the vibration plate on the same side; when the impact rod falls, the bottom of the impact rod contacts the outer edge of the impact plate.

[0005] Further, the lifting mechanism further includes a servo motor and a driving gear; the servo motor is vertically fixedly installed on the upper surface of the cover plate through bolts. The driving gear is located below the cover plate. The output end of the servo motor penetrates through the cover plate and is fixedly connected to the driving gear; and a lifting auger is vertically fixedly connected to the middle of the driving gear.

[0006] Further, electrode boxes are symmetrically installed at the upper end of the cover plate. Electrode columns are arranged in the electrode boxes. The two electrode columns are respectively located on both sides of the proton exchange membrane; the lower ends of the electrode columns penetrate through the cover plate and extend into the reaction kettle. The lower ends of the electrode columns are rotatably connected with conduction iron sheets. A plurality of electrode sheets are fixedly connected at equal intervals at the lower ends of the conduction iron sheets; a driven gear is fixedly connected to the outside of the conduction iron sheet, and the driven gear meshes with the driving gear.

[0007] Further, a driving motor is installed at the upper end of the cover plate through bolts. The output end of the driving motor is connected with a driving gear. Positioning wheels are meshed and installed on both sides of the driving gear. The two positioning wheels are fixedly connected to the corresponding worm gears.

[0008] Further, cleaning mechanisms are installed on both sides of the proton exchange membrane.

[0009] Further, the cleaning mechanism includes a reciprocating lead screw and a scraping plate; reciprocating lead screws are horizontally rotatably connected on both sides of the proton exchange membrane inside the reaction kettle. The worm gear meshes with the corresponding reciprocating lead screw. Reciprocating grooves are provided at both ends of the reciprocating lead screw. Round blocks are slidably clamped in the reciprocating grooves. The bottom of the round block is fixedly connected to the top end of the scraping plate. The sides of the two scraping plates close to each other are attached to the surface of the proton exchange membrane.

[0010] Further, symmetrically fixed connections are provided on both sides at the bottom of the proton exchange membrane with support frames, corresponding clamping grooves are provided on the inner wall of the reaction kettle, the support frames are inserted and clamped in the corresponding clamping grooves, and the support frames are fixedly connected with horizontal guide rods; the bottom end of the scraper is slidably clamped on the corresponding guide rods.

[0011] Further, the bottom of the vibrating plate is connected to the guide rod.

[0012] Further, the lower end of the scraper is hinged with a U-shaped collection block, and a torsion spring is provided between the U-shaped collection block and the scraper.

[0013] Further, drain ports are provided on both sides at the lower end of the reaction kettle, one drain port is vertically and fixedly connected downward with a positive electrode chamber discharge pipe, and the other drain port is vertically and fixedly connected downward with a negative electrode chamber discharge pipe; the positive electrode chamber discharge pipe and the negative electrode chamber discharge pipe are respectively located on both sides of the proton exchange membrane; switch valves are installed on the positive electrode chamber discharge pipe, the negative electrode chamber discharge pipe, the water inlet pipe, the hydrogen discharge pipe and the oxygen discharge pipe; the upper ends of the positive electrode chamber discharge pipe and the negative electrode chamber discharge pipe located inside the reaction kettle are fixedly connected with U-shaped material guiding frames, and triangular discharging blocks are relatively fixedly connected on both sides of the vibrating plate above the U-shaped material guiding frames.

[0014] The beneficial effects of the present invention compared with the prior art are as follows: Through the mutual cooperation of the reciprocating lead screw and the scraper, the present invention can scrape off the pollutants on the proton exchange membrane, improve the anti-pollution ability of the proton exchange membrane, and further ensure that the mixed gas can stably pass through the proton exchange membrane; then through the mutual meshing of the driving gear and the driven gear, starting the servo motor to drive the electrode plate to rotate, thereby driving the hydrogen-oxygen gas-liquid to rotate, improving the efficiency of hydrogen-oxygen gas-liquid separation and filtration; through the mutual cooperation of the water guide cylinder and the lifting auger, it is convenient to lift the hydrogen-oxygen gas-liquid from the bottom, so that the hydrogen-oxygen gas-liquid is discharged to the electrode plate through the lifting water outlet, further improving the efficiency of hydrogen-oxygen gas-liquid separation; then through the mutual cooperation of the impact plate and the impact rod, driving the vibrating plate to vibrate through the impact plate, and then driving the proton exchange membrane to vibrate, assisting in cleaning the proton exchange membrane. Description of the Drawings

[0015] Figure 1 is a schematic three-dimensional structure of the whole of the present invention Figure 1 ; Figure 2 is a schematic three-dimensional structure of the whole of the present invention Figure 2 ; Figure 3 is a schematic view of the structure of the outer bottom of the reaction kettle; Figure 4 is a schematic side sectional view of the internal structure of the reaction kettle; Figure 5 is a schematic three-dimensional structure of the internal structure of the reaction kettle; Figure 6 isFigure 5 Enlarged schematic view of part B Figure 7 is Figure 4 Enlarged schematic view of part A Figure 8 is Figure 4 Enlarged schematic view of part C Figure 9 Schematic structural diagram of the fixing plate Figure 10 Schematic structural diagram of the positioning wheel Figure 11 Schematic structural diagram of the lifting auger Figure 12 Schematic structural diagram of the sliding groove

[0016] Numbers in the figure: 1, bottom plate; 2, support frame; 3, positioning ring; 4, fixing rod; 5, reaction kettle; 6, cover plate; 7, servo motor; 8, electrode box; 9, water inlet pipe; 11, hydrogen discharge pipe; 12, oxygen discharge pipe; 13, positive electrode cavity discharge pipe; 14, negative electrode cavity discharge pipe; 15, driving gear; 16, driven gear; 17, electrode column; 18, positioning wheel; 19, reciprocating lead screw; 20, proton exchange membrane; 21, water guide cylinder; 22, scraper; 23, vibrating plate; 24, electrode plate; 25, lifting auger; 26, worm; 27, impact plate; 28, impact rod; 29, fixing plate; 30, driving motor; 31, U-shaped collection block; 32, ball; 33, conduction iron sheet; 34, guide rod; 35, telescopic spring; 36, moving plate; 37, sliding groove; 38, triangular discharge block; 39, guide post; 40, U-shaped guide frame. Specific embodiments

[0017] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer and more understandable, the present invention will be further described in detail in combination with embodiments and drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention. The technical solutions of the present invention will be described in detail below in combination with embodiments and drawings, but the protection scope is not limited by this.

[0018] See Figures 1 to 12, this embodiment proposes a hydrogen-oxygen gas-liquid separation device for green hydrogen production, which includes a bottom plate 1, a support frame 2 fixedly installed on the bottom plate 1, a positioning ring 3 provided at the top of the support frame 2, a reaction kettle 5 provided on the positioning ring 3, and a cover plate 6 provided at the top of the reaction kettle 5; an arc-shaped groove is provided inside the positioning ring 3, and the annular groove of the positioning ring 3 is closely attached to the outer wall of the reaction kettle 5, and positioning mechanisms are vertically installed around the reaction kettle 5; in this embodiment, the positioning mechanism includes fixing rods 4 vertically and fixedly connected to the four sides of the positioning ring 3, fixing bolt holes are provided at the upper ends of the fixing rods 4, and the inner sides of the fixing rods 4 are closely attached to the outer wall of the reaction kettle 5, and the cover plate 6 is fixedly connected to the upper ends of the fixing rods 4 through fixing bolts, so that the reaction kettle 5 and the cover plate 6 are closely attached and fixed through the fixing rods 4 and the fixing bolts; through the bottom plate 1 and the support frame 2, it is convenient to keep the reaction kettle 5 at a certain height from the ground, thereby preventing foreign objects from interfering with the reaction kettle 5.

[0019] A water inlet pipe 9 and an oxygen discharge pipe 12 are installed on one side wall of the reaction kettle 5, and the oxygen discharge pipe 12 is located above the water inlet pipe 9; a hydrogen discharge pipe 11 is installed on the other side wall of the reaction kettle 5; through the oxygen discharge pipe 12 and the hydrogen discharge pipe 11, the separated hydrogen and oxygen after the reaction are respectively collected. A proton exchange membrane 20 is vertically installed downward in the middle of the cover plate 6, and the hydrogen discharge pipe 11 and the oxygen discharge pipe 12 are respectively located on both sides of the proton exchange membrane 20.

[0020] A lifting mechanism is connected to the inner bottom of the reaction kettle 5, and cleaning mechanisms and vibration mechanisms are installed on both sides of the proton exchange membrane 20.

[0021] The lifting mechanism includes a servo motor 7, a driving gear 15 and a lifting auger 25; the servo motor 7 is vertically and fixedly installed on the upper surface of the cover plate 6 through bolts, the driving gear 15 is located below the cover plate 6, and the output end of the servo motor 7 passes through the cover plate 6 and is fixedly connected to the driving gear 15; and a lifting auger 25 is vertically and fixedly connected to the middle of the driving gear 15, a water guide cylinder 21 is installed outside the lifting auger 25, the bottom of the water guide cylinder 21 is fixedly connected to the inner bottom of the reaction kettle 5, and a reasonable gap (usually 0.1~1mm) is set between the lifting auger 25 and the inner wall of the water guide cylinder 21 according to the working conditions (such as medium viscosity, rotation speed, temperature), and a transition fit (such as H7 / g6) or a small clearance fit is adopted to ensure both fitting and non-jamming; water guide openings are equally spaced at the lower end of the water guide cylinder 21, and through the water guide cylinder 21 and the lifting auger 25, it is convenient to lift the hydrogen-oxygen gas-liquid from bottom to top, thereby improving the separation efficiency of the hydrogen-oxygen gas-liquid.

[0022] On the upper end of the cover plate 6, electrode boxes 8 are symmetrically installed. Electrode columns 17 are arranged inside the electrode boxes 8. The two electrode columns 17 are respectively located on both sides of the proton exchange membrane 20. The lower ends of the electrode columns 17 penetrate through the cover plate 6 and extend into the interior of the reaction kettle 5. The lower ends of the electrode columns 17 are rotatably connected with conduction iron sheets 33. A plurality of electrode sheets 24 are equidistantly and fixedly connected to the lower ends of the conduction iron sheets 33. A driven gear 16 is fixedly connected to the outside of the conduction iron sheet 33. The driven gear 16 meshes with the driving gear 15. A lifting water outlet is arranged at the upper end of the water guide cylinder 21 in the direction towards the electrode sheet 24. When the driving gear 15 rotates, the driven gear 16 drives the conduction iron sheet 33 to rotate. The lifted hydrogen-oxygen gas-liquid is sent from the lifting water outlet to the rotating electrode sheet 24, thereby increasing the contact area between the electrode sheet 24 and the hydrogen-oxygen gas-liquid, and further improving the separation reaction efficiency.

[0023] On both sides of the bottom of the proton exchange membrane 20, support frames are symmetrically and fixedly connected. Corresponding clamping grooves are arranged on the inner wall of the reaction kettle 5. The support frames are inserted and clamped in the corresponding clamping grooves. The support frames are fixedly connected with horizontal guide rods 34.

[0024] The cleaning mechanism includes a driving motor 30, a worm 26, a reciprocating lead screw 19, and a scraper 22. The driving motor 30 is installed on the upper end of the cover plate 6 through bolts. The output end of the driving motor 30 is connected with a driving gear. Positioning wheels 18 are meshed and installed on both sides of the driving gear. The two positioning wheels 18 are fixedly connected with the worm 26. The worm 26 vertically penetrates through the cover plate 6. Inside the reaction kettle 5 and on both sides of the proton exchange membrane 20, the reciprocating lead screws 19 are horizontally rotatably connected. The worm 26 meshes with the corresponding reciprocating lead screw 19. Reciprocating grooves are arranged at both ends of the reciprocating lead screw 19. Round blocks are slidably clamped in the reciprocating grooves. The bottom of the round block is fixedly connected with the top end of the scraper 22. The bottom end of the scraper 22 is slidably clamped on the corresponding guide rod 34. The surfaces of the two scrapers 22 close to each other are both attached to the surface of the proton exchange membrane 20. And a U-shaped collecting block 31 is hinged to the lower end of the scraper 22. A torsion spring is arranged between the U-shaped collecting block 31 and the scraper 22. The torsion spring facilitates the reset of the scraper 22 driving the U-shaped collecting block 31 to move after the material is poured. Through the reciprocating lead screw 19 and the scraper 22, it is convenient to scrape the dirt on both surfaces of the proton exchange membrane 20.

[0025] The vibration mechanism includes a fixed plate 29, a moving plate 36, an impact rod 28, an impact plate 27, and a vibration plate 23. The bottom of the vibration plate 23 is connected to the middle of the guide rod 34. The vibration plate 23 is arranged vertically upward, and the top of the vibration plate 23 is a free end. The vibration plate 23 is attached to the proton exchange membrane 20, and there is a certain height difference between the two side vibration plates 23. Fixing plates 29 are arranged on both sides of the top of the proton exchange membrane 20, and the top of the fixing plate 29 is fixedly connected to the bottom surface of the cover plate 6. Grooves are provided on the opposite sides of the two fixing plates 29. Guide columns 39 are fixedly connected along the vertical direction in the grooves. A moving plate 36 is slidably sleeved on the guide column 39. A telescopic spring 35 is sleeved outside the guide column 39 above the moving plate 36. One end of the telescopic spring 35 is connected to the inner wall of the groove, and the other end of the telescopic spring 35 is connected to the moving plate 36. And one end of the moving plate 36 extends out of the groove and is rotatably connected with a ball 32. A sliding groove 37 is provided on the worm 26 to cooperate with the ball 32. The sliding groove 37 includes a coiled arc groove and a vertical straight groove. The top end of the arc groove is communicated with the top end of the straight groove, and the bottom end of the arc groove is communicated with the bottom end of the straight groove. The ball 32 is movably abutted in the sliding groove 37 at the lower end of the worm 26. The impact rod 28 is fixedly connected vertically downward to the moving plate 36. An impact plate 27 is horizontally arranged below the impact rod 28. The inner edge of the impact plate 27 is fixedly connected to the vibration plate 23 on the same side. When the impact rod 28 drops, the bottom of the impact rod 28 contacts the outer edge of the impact plate 27.

[0026] Drain ports are provided on both sides of the lower end of the reaction kettle 5. A positive electrode chamber discharge pipe 13 is fixedly connected vertically downward to one drain port, and a negative electrode chamber discharge pipe 14 is fixedly connected vertically downward to the other drain port. The positive electrode chamber discharge pipe 13 and the negative electrode chamber discharge pipe 14 are respectively located on both sides of the proton exchange membrane 20. Switch valves are installed on the positive electrode chamber discharge pipe 13, the negative electrode chamber discharge pipe 14, the water inlet pipe 9, the hydrogen discharge pipe 11, and the oxygen discharge pipe 12. U-shaped material guide frames 40 are fixedly connected to the upper ends of the positive electrode chamber discharge pipe 13 and the negative electrode chamber discharge pipe 14 inside the reaction kettle 5. Triangular discharge blocks 38 are fixedly connected relatively on both sides of the vibration plate 23 above the U-shaped material guide frame 40. Through the positive electrode chamber discharge pipe 13, the negative electrode chamber discharge pipe 14, the hydrogen discharge pipe 11, and the oxygen discharge pipe 12, it is convenient to discharge hydrogen, oxygen, and hydrogen-oxygen liquid from the separation device through different pipelines.

[0027] In this embodiment, a method for using a hydrogen-oxygen liquid separation device for green hydrogen production includes the following steps: Step 1: First, open the water inlet pipe 9 to discharge the hydrogen-oxygen gas-liquid into the reaction kettle 5. Then, start the electrode box 8, so that the positive electrode and the negative electrode are respectively conducted to the conduction iron sheet 33 inside the cover plate 6 through the electrode column 17, and then the positive electrode and the negative electrode are conducted from the conduction iron sheet 33 to each electrode sheet 24. Since a part of water can pass through the proton exchange membrane 20 through mechanisms such as osmotic diffusion and electrodialysis drag, there will also be some water on the other side of the proton exchange membrane 20.

[0028] Step 2: Then, drive the driving gear 15 to rotate through the output shaft of the servo motor 7, so that the lifting auger 25 rotates, thereby transporting the hydrogen-oxygen gas-liquid in the reaction kettle 5 upward from the bottom of the water guide cylinder 21, and then discharging it through the lifting water outlet, so that the hydrogen-oxygen gas-liquid is sprayed onto the electrode sheet 24 with a certain power, increasing the contact area between the electrode sheet 24 and the hydrogen-oxygen gas-liquid, thereby improving the separation efficiency.

[0029] And the driving gear 15 rotates to drive the driven gear 16 to rotate, thereby driving the conduction iron sheet 33 and the electrode sheet 24 to rotate, stirring the hydrogen-oxygen gas-liquid in the reaction kettle 5, so that the separation reaction can be better carried out. The hydrogen and oxygen generated on both sides of the proton exchange membrane 20 are respectively discharged through the hydrogen discharge pipe 11 and the oxygen discharge pipe 12.

[0030] Step 3: After the device has been used for a certain period of time, the excess liquid in the reaction kettle 5 can be discharged by opening the positive electrode chamber discharge pipe 13 and the negative electrode chamber discharge pipe 14.

[0031] Start the drive motor 30. Through the drive motor 30 and the positioning wheel 18, drive the worm 26 to rotate. Through the worm 26, drive the reciprocating lead screw 19 to rotate, so that the scrapers 22 at both ends of the reciprocating lead screw 19 reciprocate to clean the surface of the proton exchange membrane 20. And during the cleaning process, through the rotation of the worm 26, drive the ball 32 in the sliding groove 37 to move, so that the impact rod 28 moves upward. When it moves to the uppermost end, the moving plate 36, under the action of the telescopic spring 35, makes the impact rod 28 move downward rapidly and fall on the impact plate 27, generating a downward pressing force on the impact plate 27; drive the vibrating plate 23 to vibrate through the impact plate 27, and then drive the proton exchange membrane 20 to vibrate, assisting in cleaning the proton exchange membrane 20. And through the torsion spring at the lower end of the scraper 22 and the U-shaped collecting block 31, it is convenient to collect the impurities cleaned by the scraper 22. And when the scraper 22 moves to the middle, through the triangular discharge block 38, make the U-shaped collecting block 31 tilt downward, so as to pour the impurities into the U-shaped guide frame 40 on the positive electrode chamber discharge pipe 13 and the negative electrode chamber discharge pipe 14, so as to facilitate the discharge of the impurities out of the device.

[0032] The above content is a further detailed description of the present invention in combination with specific preferred embodiments. It cannot be determined that the specific embodiments of the present invention are limited thereto. For those of ordinary skill in the technical field to which the present invention pertains, without departing from the present invention, several simple deductions or substitutions can still be made, and all should be regarded as falling within the scope of patent protection determined by the claims submitted for the present invention.

Claims

1. A hydrogen-oxygen gas-liquid separation device for green hydrogen production, comprising a reaction kettle (5), a cover plate (6) is arranged at the top of the reaction kettle (5), a water inlet pipe (9) and an oxygen discharge pipe (12) are installed on one side side wall of the reaction kettle (5), and a hydrogen discharge pipe (11) is installed on the other side side wall of the reaction kettle (5); a proton exchange membrane (20) is vertically and downwardly installed in the middle of the cover plate (6), and electrode plates (24) are respectively arranged on both sides of the proton exchange membrane (20); characterized in that, At the inner bottom of the reaction kettle (5), a lifting mechanism is connected, and vibration mechanisms are installed on both sides of the proton exchange membrane (20); the lifting mechanism includes a lifting auger (25), a water guide cylinder (21) is installed outside the lifting auger (25), and water guide openings are equidistantly arranged at the lower end of the water guide cylinder (21); a lifting water outlet is arranged at the upper end of the water guide cylinder (21) towards the direction of the electrode plate (24). The vibration mechanism includes a fixing plate (29), a moving plate (36), an impact rod (28), an impact plate (27), and a vibrating plate (23); the bottom of the vibrating plate (23) is fixed, the top of the vibrating plate (23) is a free end, the vibrating plate (23) is attached to the proton exchange membrane (20), and there is a height difference between the vibrating plates (23) on both sides; fixing plates (29) are arranged on both sides of the top of the proton exchange membrane (20), and the top of the fixing plate (29) is fixedly connected to the bottom surface of the cover plate (6); grooves are opened on the opposite sides of the two fixing plates (29), a guide post (39) is fixedly connected along the vertical direction in the groove, a moving plate (36) is slidably sleeved on the guide post (39), a telescopic spring (35) is sleeved outside the guide post (39) above the moving plate (36), one end of the telescopic spring (35) is connected to the inner wall of the groove, and the other end of the telescopic spring (35) is connected to the moving plate (36); and one end of the moving plate (36) extends out of the groove and is rotatably connected with a ball (32); worms (26) that can rotate are arranged on both sides of the proton exchange membrane (20), and a sliding groove (37) is opened on the worm (26) to cooperate with the ball (32), the sliding groove (37) includes a coiled arc groove and a vertical straight groove, the top of the arc groove is communicated with the top of the straight groove, and the bottom of the arc groove is communicated with the bottom of the straight groove; the ball (32) is movably abutted in the sliding groove (37) at the lower end of the worm (26), an impact rod (28) is fixedly connected vertically downward to the moving plate (36), an impact plate (27) is horizontally arranged below the impact rod (28), and the inner edge of the impact plate (27) is fixedly connected to the vibrating plate (23) on the same side; when the impact rod (28) drops, the bottom of the impact rod (28) contacts the outer edge of the impact plate (27).

2. The hydrogen-oxygen gas-liquid separation device for green hydrogen production according to claim 1, wherein, The lifting mechanism further includes a servo motor (7) and a driving gear (15); the servo motor (7) is vertically fixedly installed on the upper surface of the cover plate (6) through bolts, the driving gear (15) is located below the cover plate (6), and the output end of the servo motor (7) penetrates through the cover plate (6) and is fixedly connected to the driving gear (15); and a lifting auger (25) is vertically fixedly connected to the middle of the driving gear (15).

3. The hydrogen-oxygen gas-liquid separation device for green hydrogen production according to claim 2, wherein, On the upper end of the cover plate (6), electrode boxes (8) are symmetrically installed. Electrode columns (17) are arranged inside the electrode boxes (8), and the two electrode columns (17) are respectively located on both sides of the proton exchange membrane (20); the lower ends of the electrode columns (17) penetrate through the cover plate (6) and extend into the interior of the reaction kettle (5). The lower ends of the electrode columns (17) are rotatably connected with conduction iron sheets (33), and a plurality of electrode sheets (24) are equidistantly and fixedly connected to the lower ends of the conduction iron sheets (33); a driven gear (16) is fixedly connected to the outside of the conduction iron sheet (33), and the driven gear (16) meshes with the driving gear (15).

4. A hydrogen-oxygen gas-liquid separation device for green hydrogen production according to claim 1, characterized in that, A driving motor (30) is installed on the upper end of the cover plate (6) through bolts. The output end of the driving motor (30) is connected with a driving gear, and positioning wheels (18) are meshingly installed on both sides of the driving gear. The positioning wheels (18) on both sides are fixedly connected with the corresponding worm gears (26).

5. The hydrogen-oxygen gas-liquid separation device for green hydrogen production according to claim 4, characterized in that, Cleaning mechanisms are installed on both side surfaces of the proton exchange membrane (20).

6. The hydrogen-oxygen gas-liquid separation device for green hydrogen production according to claim 5, characterized in that, The cleaning mechanism includes a reciprocating lead screw (19) and a scraper (22); the reciprocating lead screws (19) are horizontally rotatably connected inside the reaction kettle (5) and on both sides of the proton exchange membrane (20). The worm gears (26) mesh with the corresponding reciprocating lead screws (19). Reciprocating grooves are opened at both ends of the reciprocating lead screw (19), and round blocks are slidably clamped in the reciprocating grooves. The bottom of the round block is fixedly connected to the top end of the scraper (22). The sides of the two scrapers (22) close to each other are attached to the surface of the proton exchange membrane (20).

7. The hydrogen-oxygen gas-liquid separation device for green hydrogen production according to claim 6, characterized in that, Support frames are symmetrically and fixedly connected to both sides of the bottom of the proton exchange membrane (20). Corresponding clamping grooves are arranged on the inner wall of the reaction kettle (5), and the support frames are inserted and clamped in the corresponding clamping grooves. A horizontal guide rod (34) is fixedly connected to the support frame; the bottom end of the scraper (22) is slidably clamped on the corresponding guide rod (34).

8. A hydrogen-oxygen gas-liquid separation device for green hydrogen production according to claim 7, characterized in that, The bottom of the vibrating plate (23) is connected to the guide rod (34).

9. A hydrogen-oxygen gas-liquid separation device for green hydrogen production according to claim 7, characterized in that, The lower end of the scraper (22) is hinged with a U-shaped collecting block (31), and a torsion spring is arranged between the U-shaped collecting block (31) and the scraper (22).

10. The hydrogen-oxygen gas-liquid separation device for green hydrogen production according to claim 9, wherein, Drain ports are opened on both sides of the lower end of the reaction kettle (5). A positive electrode chamber discharge pipe (13) is fixedly connected vertically downward to one drain port, and a negative electrode chamber discharge pipe (14) is fixedly connected vertically downward to the other drain port; the positive electrode chamber discharge pipe (13) and the negative electrode chamber discharge pipe (14) are respectively located on both sides of the proton exchange membrane (20); switch valves are installed on the positive electrode chamber discharge pipe (13), the negative electrode chamber discharge pipe (14), the water inlet pipe (9), the hydrogen discharge pipe (11) and the oxygen discharge pipe (12); U-shaped material guiding frames (40) are fixedly connected to the upper ends of the positive electrode chamber discharge pipe (13) and the negative electrode chamber discharge pipe (14) inside the reaction kettle (5). Triangular discharge blocks (38) are relatively fixedly connected to both sides of the vibrating plate (23) above the U-shaped material guiding frame (40).

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