A hydrogen and oxygen liquid separation device for green hydrogen production

Abstract

The present invention discloses a hydrogen and oxygen liquid-liquid separation device for green hydrogen preparation, which belongs to the technical field of hydrogen and oxygen liquid-liquid separation; the separation device comprises a reactor, a cover plate is provided on the top of the reactor, a proton exchange membrane is vertically installed downwardly in the middle of the cover plate, and electrode sheets are respectively provided on both sides of the proton exchange membrane; a lifting mechanism is connected to the bottom of the reactor, and a vibration mechanism is installed on both sides of the proton exchange membrane; the lifting mechanism comprises a lifting auger, a water guide cylinder is installed on the outer side of the lifting auger, and water guide ports are equidistantly provided at the lower end of the water guide cylinder; a lifting water outlet is provided at the upper end of the water guide cylinder towards the electrode sheets; the present invention can realize the cleaning of the proton exchange membrane, improve the efficiency of hydrogen and oxygen liquid-liquid separation and filtration, and solve the problem of low efficiency of existing hydrogen and oxygen liquid separation devices.

Description

Technical Field

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

[0002] As a clean and efficient energy carrier, green hydrogen plays a key role in the global energy transition. Its production is primarily achieved through the electrolysis of water using renewable energy. During this process, water is decomposed into hydrogen and oxygen, producing a large amount of mixed gas containing hydrogen, oxygen, and water vapor. Due to the subsequent application needs of hydrogen and oxygen, as well as the requirements for safe storage and transportation, the efficient separation of hydrogen, oxygen, and liquid water in this mixed gas is essential.

[0003] Early gas-liquid separation technologies were relatively simple, often employing gravity settling, relying on the density difference between gas and liquid to achieve initial separation. However, this method suffers from low separation efficiency and struggles to effectively remove tiny droplets, failing to meet the demands of large-scale, high-purity green hydrogen production. Existing hydrogen-oxygen-liquid separation devices for green hydrogen production utilize filter media separation technology. Fiber filtration channels allow the mixed gas to pass through a fiber layer, where the fibers intercept and adsorb droplets to achieve gas-liquid separation. However, this method is susceptible to fiber clogging, which reduces the membrane's anti-contamination ability and necessitates frequent filter media replacement. Furthermore, the slow liquid flow rate reduces separation efficiency. Summary of the Invention

[0004] The present invention overcomes the shortcomings of the prior art and proposes a hydrogen and oxygen liquid separation device for green hydrogen production. The present invention is achieved through the following technical solutions:

[0005] A hydrogen and oxygen liquid separation device for green hydrogen production includes a reactor, a cover plate is provided on the top of the reactor, a water inlet pipe and an oxygen exhaust pipe are installed on one side wall of the reactor, and a hydrogen exhaust pipe is installed on the other side wall of the reactor; a proton exchange membrane is installed vertically downward in the middle of the cover plate, and electrode sheets are respectively provided on both sides of the proton exchange membrane; a lifting mechanism is connected to the bottom of the reactor, and a vibration mechanism is installed on both sides of the proton exchange membrane; the lifting mechanism includes a lifting auger, a water guide cylinder is installed on the outside of the lifting auger, and water guide ports are equidistantly opened at the lower end of the water guide cylinder; a lifting water outlet is opened at the upper end of the water guide cylinder in the direction toward the electrode sheet;

[0006] The vibration mechanism includes a fixed plate, a movable 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 in contact with the proton exchange membrane, and there is a height difference between the vibration plates on both sides; fixed plates are provided on both sides of the top of the proton exchange membrane, and the top of the fixed plate is fixedly connected to the bottom surface of the cover plate; grooves are provided on the opposite sides of the two fixed plates, and a guide column is fixedly connected to the groove in a vertical direction, and a movable plate is slidably sleeved on the guide column, and a telescopic spring is sleeved on the outer side of the guide column above the movable 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 movable plate ; and one end of the movable plate extends out of the groove and is connected to a rolling ball; a rotatable worm is provided on both sides of the proton exchange membrane, and a sliding groove is provided on the worm to cooperate with the ball, and the sliding groove includes a spiral arc groove and a vertical straight groove, the top of the arc groove is connected to the top of the straight groove, and the bottom of the arc groove is connected to the bottom of the straight groove; the ball is movably abutted in the sliding groove at the lower end of the worm, and the movable plate is fixedly connected vertically downward with an impact rod, and an impact plate is horizontally arranged below the impact rod, and 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.

[0007] Furthermore, the lifting mechanism also includes a servo motor and a driving gear; the servo motor is vertically fixed on the upper surface of the cover plate by bolts, the driving gear is located below the cover plate, and the output end of the servo motor passes through the cover plate and is fixedly connected to the driving gear; and a lifting auger is vertically fixed downward in the middle of the driving gear.

[0008] Furthermore, an electrode box is symmetrically installed on the upper end of the cover plate, and an electrode column is arranged in the electrode box, and the two electrode columns are respectively located on both sides of the proton exchange membrane; the lower end of the electrode column passes through the cover plate and extends into the interior of the reactor, the lower end of the electrode column is rotatably connected to a conductive iron sheet, and the lower end of the conductive iron sheet is fixedly connected to multiple electrode sheets at equal intervals; a driven gear is fixedly connected to the outer side of the conductive iron sheet, and the driven gear is meshed with the driving gear.

[0009] Furthermore, a driving motor is installed on the upper end of the cover plate through bolts, and the output end of the driving motor is connected to a driving gear. Positioning wheels are meshed and installed on both sides of the driving gear, and the positioning wheels on both sides are fixedly connected to the corresponding worm gears.

[0010] Furthermore, cleaning mechanisms are installed on both sides of the proton exchange membrane.

[0011] Furthermore, the cleaning mechanism includes a reciprocating screw and a scraper; a reciprocating screw is horizontally connected to both sides of the proton exchange membrane inside the reactor, the worm is engaged with the corresponding reciprocating screw, and a reciprocating groove is provided at both ends of the reciprocating screw. Round blocks are slidably engaged in the reciprocating grooves, and the bottom of the round block is fixedly connected to the top of the scraper. The sides of the two scrapers that are close to each other are both in contact with the surface of the proton exchange membrane.

[0012] Furthermore, support frames are symmetrically fixedly connected on both sides of the bottom of the proton exchange membrane, and corresponding snap-in grooves are provided on the inner wall of the reactor. The support frames are inserted and snap-into the corresponding snap-in grooves, and the support frames are fixedly connected to horizontal guide rods; the bottom end of the scraper is slidably snap-into the corresponding guide rods.

[0013] Furthermore, the bottom of the vibration plate is connected to the guide rod.

[0014] Furthermore, a U-shaped collecting block is hinged at the lower end of the scraper, and a torsion spring is provided between the U-shaped collecting block and the scraper.

[0015] Furthermore, drain outlets are provided on both sides of the lower end of the reactor, one drain outlet is fixedly connected vertically downward to the positive electrode cavity discharge pipe, and the other drain outlet is fixedly connected vertically downward to the negative electrode cavity discharge pipe; the positive electrode cavity discharge pipe and the negative electrode cavity discharge pipe are respectively located on both sides of the proton exchange membrane; the positive electrode cavity discharge pipe, the negative electrode cavity discharge pipe, the water inlet pipe, the hydrogen discharge pipe and the oxygen discharge pipe are all installed with switch valves; the upper ends of the positive electrode cavity discharge pipe and the negative electrode cavity discharge pipe are located inside the reactor and are fixedly connected to a U-shaped material guide frame, and triangular discharge blocks are relatively fixedly connected to both sides of the vibration plate above the U-shaped material guide frame.

[0016] The beneficial effects of the present invention compared to the prior art are:

[0017] The present invention can scrape off the pollutants on the proton exchange membrane by cooperating with the reciprocating screw and the scraper, thereby improving the anti-pollution ability of the proton exchange membrane and ensuring that the mixed gas can stably pass through the proton exchange membrane; then, the driving gear and the driven gear are engaged with each other, and the servo motor is started to drive the electrode sheet to rotate, thereby driving the hydrogen and oxygen liquid to rotate, thereby improving the efficiency of hydrogen, oxygen and liquid separation and filtration; through the cooperation of the water guide cylinder and the lifting auger, it is convenient to lift the hydrogen and oxygen liquid from the bottom, so that the hydrogen and oxygen liquid is discharged to the electrode sheet through the lifting water outlet, further improving the efficiency of hydrogen, oxygen and liquid separation; then, through the cooperation of the impact plate and the impact rod, the vibration plate is driven by the impact plate to vibrate, thereby driving the proton exchange membrane to vibrate, thereby assisting in cleaning the proton exchange membrane. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The three-dimensional structure of the present invention is shown as follows Figure 1 ;

[0019] Figure 2 The three-dimensional structure of the present invention is shown as follows Figure 2 ;

[0020] Figure 3 Schematic diagram of the outer bottom structure of the reactor;

[0021] Figure 4 Schematic diagram of the internal side cross-sectional structure of the reactor;

[0022] Figure 5 Schematic diagram of the internal three-dimensional structure of the reactor;

[0023] Figure 6 for Figure 5 A magnified schematic diagram of part B in the middle;

[0024] Figure 7 for Figure 4 A magnified schematic diagram of part A in the middle;

[0025] Figure 8 for Figure 4 A magnified schematic diagram of the middle C part;

[0026] Figure 9 is a structural diagram of the fixed plate;

[0027] Figure 10 Schematic diagram of the structure of the positioning wheel;

[0028] Figure 11 It is a structural diagram of the lifting auger;

[0029] Figure 12 Schematic diagram of the structure of the sliding groove.

[0030] Serial numbers in the figure: 1, bottom plate; 2, support frame; 3, positioning ring; 4, fixing rod; 5, reactor; 6, cover plate; 7, servo motor; 8, electrode box; 9, water inlet pipe; 11, hydrogen discharge pipe; 12, oxygen discharge pipe; 13, positive electrode chamber discharge pipe; 14, negative electrode chamber discharge pipe; 15, driving gear; 16, driven gear; 17, electrode column; 18, positioning wheel; 19, reciprocating screw; 20, proton exchange membrane; 21 , water guide tube; 22, scraper; 23, vibration plate; 24, electrode plate; 25, lifting auger; 26, worm; 27, impact plate; 28, impact rod; 29, fixed plate; 30, drive motor; 31, U-shaped collecting block; 32, ball bearing; 33, conductive iron sheet; 34, guide rod; 35, telescopic spring; 36, moving plate; 37, sliding groove; 38, triangular discharge block; 39, guide column; 40, U-shaped guide frame. DETAILED DESCRIPTION

[0031] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail with reference to the embodiments and the accompanying drawings. It should be understood that the specific embodiments described herein are merely for explaining the present invention and are not intended to limit the present invention. The technical solutions of the present invention will be described in detail below with reference to the embodiments and the accompanying drawings, but the scope of protection is not limited thereto.

[0032] See also Figures 1 to 12, this embodiment proposes a hydrogen and oxygen liquid separation device for green hydrogen production, comprising a base plate 1, a support frame 2 fixedly mounted on the base plate 1, a positioning ring 3 provided on the top of the support frame 2, a reactor 5 provided on the positioning ring 3 and a cover plate 6 provided on the top of the reactor 5; an arc groove is provided on the inner side of the positioning ring 3, and the annular groove of the positioning ring 3 is tightly fitted into the outer wall of the reactor 5, and a positioning mechanism is vertically installed around the reactor 5; in this embodiment, the positioning mechanism includes a fixing rod 4 vertically fixedly connected to the four sides of the positioning ring 3, a fixing bolt hole is provided on the upper end of the fixing rod 4, and the inner side of the fixing rod 4 is tightly fitted into the outer wall of the reactor 5, and the cover plate 6 is fixedly connected to the upper end of the fixing rod 4 by a fixing bolt, and the reactor 5 and the cover plate 6 are tightly fitted and fixed by the fixing rod 4 and the fixing bolt; the base plate 1 and the support frame 2 facilitate the reactor 5 to be kept at a certain height from the ground, thereby preventing foreign matter from interfering with the reactor 5.

[0033] A water inlet pipe 9 and an oxygen outlet pipe 12 are mounted on one sidewall of the reactor 5, with the oxygen outlet pipe 12 positioned above the water inlet pipe 9. A hydrogen outlet pipe 11 is mounted on the other sidewall of the reactor 5. These two pipes collect the hydrogen and oxygen gases after the separation reaction. A proton exchange membrane 20 is mounted vertically downward in the middle of the cover plate 6, with the hydrogen outlet pipe 11 and oxygen outlet pipe 12 positioned on either side of the proton exchange membrane 20.

[0034] The bottom of the reactor 5 is connected to a lifting mechanism, and both sides of the proton exchange membrane 20 are installed with a cleaning mechanism and a vibration mechanism.

[0035] The lifting mechanism includes a servo motor 7, a driving gear 15 and a lifting auger 25; the servo motor 7 is vertically fixedly mounted on the upper surface of the cover plate 6 by 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 the middle part of the driving gear 15 is vertically fixedly connected to the lifting auger 25 downward, and a water guide cylinder 21 is installed on the outside of the lifting auger 25. The bottom of the water guide cylinder 21 is fixedly connected to the bottom of the reactor 5. 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, speed, and temperature), and a transition fit (such as H7 / g6) or a small gap fit is adopted to ensure fit without getting stuck; water guide ports are equidistantly opened at the lower end of the water guide cylinder 21, and the water guide cylinder 21 and the lifting auger 25 are used to facilitate the lifting of hydrogen and oxygen liquid from bottom to top, thereby improving the separation efficiency of hydrogen and oxygen liquid.

[0036] An electrode box 8 is symmetrically mounted on the upper end of the cover plate 6. An electrode column 17 is provided in the electrode box 8. Two electrode columns 17 are located on both sides of the proton exchange membrane 20. The lower end of the electrode column 17 extends through the cover plate 6 into the interior of the reactor 5. The lower end of the electrode column 17 is rotatably connected to a conductive iron sheet 33. The lower end of the conductive iron sheet 33 is fixedly connected to multiple electrode sheets 24 at equal intervals. A driven gear 16 is fixedly connected to the outer side of the conductive iron sheet 33, and the driven gear 16 is meshed with the driving gear 15. A lifting water outlet is opened at the upper end of the water guide cylinder 21 toward the electrode sheet 24. When the driving gear 15 rotates, the driven gear 16 drives the conductive iron sheet 33 to rotate, and the lifted hydrogen and oxygen 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 and oxygen liquid, thereby improving the separation reaction efficiency.

[0037] Support frames are symmetrically fixedly connected to both sides of the bottom of the proton exchange membrane 20. The inner wall of the reactor 5 is provided with corresponding clamping grooves, and the support frames are inserted and clamped in the corresponding clamping grooves. The support frames are fixedly connected to horizontal guide rods 34.

[0038] The cleaning mechanism includes a drive motor 30, a worm 26, a reciprocating screw 19, and a scraper 22; the drive motor 30 is installed on the upper end of the cover plate 6 by bolts, and the output end of the drive motor 30 is connected to a drive gear, and positioning wheels 18 are meshed and installed on both sides of the drive gear. The positioning wheels 18 on both sides are fixedly connected to the worm 26, and the worm 26 vertically penetrates the cover plate 6 downward. The inside of the reactor 5 and the two sides of the proton exchange membrane 20 are horizontally rotated and connected to the reciprocating screw 19. The worm 26 is meshed with the corresponding reciprocating screw 19. Reciprocating grooves are provided at both ends of the reciprocating screw 19, and round blocks are slidably engaged in the reciprocating grooves. The bottom of the round block is fixedly connected to the top of the scraper 22, and the bottom end of the scraper 22 is slidably engaged on the corresponding guide rod 34. The close sides of the two scrapers 22 are both in contact with the surface of the proton exchange membrane 20. A U-shaped collecting block 31 is hinged at the lower end of the scraper 22, and a torsion spring is provided between the U-shaped collecting block 31 and the scraper 22. The torsion spring allows the scraper 22 to drive the U-shaped collecting block 31 to move and reset after the material is unloaded. The reciprocating screw 19 and the scraper 22 facilitate the scraping of dirt on both sides of the proton exchange membrane 20.

[0039] The vibration mechanism includes a fixed plate 29, a movable 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, the top of the vibration plate 23 is a free end, the vibration plate 23 is fitted with the proton exchange membrane 20, and there is a certain height difference between the vibration plates 23 on both sides; fixed plates 29 are provided on both sides of the top of the proton exchange membrane 20, and the top of the fixed plate 29 is fixedly connected to the bottom surface of the cover plate 6; grooves are provided on the opposite sides of the two fixed plates 29, and a guide rod is fixedly connected to the groove along the vertical direction. A movable plate 36 is slidably mounted on the guide post 39. A telescopic spring 35 is mounted on the outer side of the guide post 39 above the movable 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 movable plate 36. One end of the movable plate 36 extends out of the groove and is rotatably coupled to a ball bearing 32. A sliding groove 37 is defined on the worm 26 to accommodate the ball bearing 32. The sliding groove 37 comprises a spiral arcuate groove and a vertical linear groove. The top of the arcuate groove communicates with the top of the linear groove, and the bottom of the arcuate groove communicates with the bottom of the linear groove. The ball bearing 32 movably abuts the sliding groove 37 at the lower end of the worm 26. An impact rod 28 is fixedly mounted vertically downward on the movable plate 36. Below the impact rod 28 is a horizontal impact plate 27, the inner edge of which is fixedly coupled to the vibrating plate 23 on the same side. When the impact rod 28 falls, the bottom of the impact rod 28 contacts the outer edge of the impact plate 27.

[0040] Drains are provided on either side of the lower end of the reactor 5. One drain is vertically and downwardly fixedly connected to the positive electrode chamber drain pipe 13, and the other drain is vertically and downwardly fixedly connected to the negative electrode chamber drain pipe 14. The positive and negative electrode chamber drain pipes 13 and 14 are located on either side of the proton exchange membrane 20. On-off valves are installed on the positive and negative electrode chamber drain pipes 13 and 14, as well as the water inlet pipe 9, the hydrogen discharge pipe 11, and the oxygen discharge pipe 12. The upper ends of the positive and negative electrode chamber drain pipes 13 and 14 are fixedly connected to a U-shaped material guide frame 40 within the reactor 5. Triangular discharge blocks 38 are fixedly connected to opposite sides of the vibration plate 23 above the U-shaped material guide frame 40. The positive and negative electrode chamber drain pipes 13, 14, hydrogen discharge pipe 11, and oxygen discharge pipe 12 facilitate the discharge of hydrogen, oxygen, and hydrogen-oxygen liquid from the separation device through different pipes.

[0041] In this embodiment, a method for using a hydrogen-oxygen liquid separation device for producing green hydrogen includes the following steps:

[0042] In step 1, the hydrogen and oxygen liquid is first discharged into the reactor 5 by opening the water inlet pipe 9. Then, by activating the electrode cartridge 8, the positive and negative electrodes are respectively transferred to the conductive iron sheet 33 inside the cover plate 6 through the electrode column 17. The positive and negative electrodes are then transferred from the conductive iron sheet 33 to each electrode sheet 24. Because some water can pass through the proton exchange membrane 20 through mechanisms such as osmotic diffusion and electrodialysis drag, some water will also be present on the other side of the proton exchange membrane 20.

[0043] In step 2, the output shaft of the servo motor 7 drives the driving gear 15 to rotate, so that the lifting auger 25 rotates, thereby transporting the hydrogen and oxygen liquid in the reactor 5 upward from the bottom of the water guide cylinder 21, and then discharged through the lifting water outlet, so that the hydrogen and oxygen liquid is sprayed onto the electrode sheet 24 with a certain power, increasing the contact area between the electrode sheet 24 and the hydrogen and oxygen liquid, thereby improving the separation efficiency.

[0044] The driving gear 15 rotates to drive the driven gear 16 to rotate, thereby driving the conductive iron sheet 33 and the electrode sheet 24 to rotate, so that the hydrogen and oxygen liquid in the reactor 5 is stirred, 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 discharged through the hydrogen exhaust pipe 11 and the oxygen exhaust pipe 12 respectively.

[0045] Step 3: After the device has been used for a certain period of time, the excess liquid in the reactor 5 can be discharged by opening the positive electrode chamber discharge pipe 13 and the negative electrode chamber discharge pipe 14 .

[0046] The drive motor 30 is started, and the worm 26 is driven to rotate through the drive motor 30 and the positioning wheel 18, and the reciprocating screw 19 is driven to rotate through the worm 26, so that the scrapers 22 at both ends of the reciprocating screw 19 move back and forth to clean the surface of the proton exchange membrane 20, and during the cleaning process, the worm 26 rotates, driving 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, causes the impact rod 28 to move downward rapidly, and falls on the impact plate 27 to exert a downward pressure on the impact plate 27; the vibration plate 23 is driven to vibrate through the impact plate 27, thereby driving the proton exchange membrane 20 to vibrate, thereby assisting in cleaning the proton exchange membrane 20. The torsion spring at the lower end of the scraper 22 and the U-shaped collecting block 31 facilitate the collection of impurities cleaned by the scraper 22. When the scraper 22 moves to the middle, the triangular discharge block 38 causes the U-shaped collecting block 31 to tilt downward, thereby pouring 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, thereby facilitating the discharge of impurities outside the device.

[0047] The above content is a further detailed description of the present invention in combination with a specific preferred embodiment. It cannot be considered that the specific embodiments of the present invention are limited to this. For ordinary technicians in the technical field to which the present invention belongs, they can make several simple deductions or substitutions without departing from the present invention, which should be regarded as belonging to the scope of patent protection determined by the submitted claims of the present invention.

Claims

1. A hydrogen and oxygen liquid separation device for preparing green hydrogen, comprising a reactor (5), a cover plate (6) being provided on the top of the reactor (5), a water inlet pipe (9) and an oxygen outlet pipe (12) being installed on one side wall of the reactor (5), and a hydrogen outlet pipe (11) being installed on the other side wall of the reactor (5); a proton exchange membrane (20) being vertically installed downwardly in the middle of the cover plate (6), and electrode sheets (24) being provided on both sides of the proton exchange membrane (20); characterized in that: The bottom of the reactor (5) is connected to a lifting mechanism, and both sides of the proton exchange membrane (20) are equipped with a vibration mechanism; the lifting mechanism includes a lifting auger (25), and a water guide cylinder (21) is installed outside the lifting auger (25), and water guide ports are equidistantly provided at the lower end of the water guide cylinder (21); and a lifting water outlet is provided at the upper end of the water guide cylinder (21) in the direction toward the electrode sheet (24); The vibration mechanism comprises a fixed plate (29), a movable plate (36), an impact rod (28), an impact plate (27), and a vibration plate (23); the bottom of the vibration plate (23) is fixed, the top of the vibration plate (23) is a free end, the vibration plate (23) is in contact with the proton exchange membrane (20), and there is a height difference between the vibration plates (23) on both sides; fixed plates (29) are provided on both sides of the top of the proton exchange membrane (20), and the top of the fixed plate (29) is fixedly connected to the bottom surface of the cover plate (6); grooves are provided on opposite sides of the two fixed plates (29), and a guide column (39) is fixedly connected in the vertical direction in the groove. The movable plate (36) is slidably sleeved on the guide column (39), and a telescopic spring (35) is sleeved on the outer side of the guide column (39) above the movable plate (36), and 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 movable plate (36). The movable plate (36) is connected; and one end of the movable plate (36) extends out of the groove and is rollingly connected with a ball (32); a rotatable worm (26) is provided on both sides of the proton exchange membrane (20), and a sliding groove (37) is provided on the worm (26) to cooperate with the ball (32), and the sliding groove (37) includes a spiral arc groove and a vertical straight groove, the top of the arc groove is connected to the top of the straight groove, and the bottom of the arc groove is connected to 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), and the movable plate (36) is vertically fixedly connected to the impact rod (28), and an impact plate (27) is horizontally provided below the impact rod (28), and 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) falls, the bottom of the impact rod (28) contacts the outer edge of the impact plate (27).

2. A hydrogen and oxygen liquid separation device for green hydrogen production according to claim 1, characterized in that: The lifting mechanism further comprises a servo motor (7) and a driving gear (15); the servo motor (7) is vertically fixedly mounted on the upper surface of the cover plate (6) by means of bolts, the driving gear (15) is located below the cover plate (6), 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 fixedly connected vertically downward to the middle of the driving gear (15).

3. A hydrogen and oxygen liquid separation device for green hydrogen production according to claim 2, characterized in that: An electrode box (8) is symmetrically mounted on the upper end of the cover plate (6), and an electrode column (17) is arranged in the electrode box (8), and the two electrode columns (17) are respectively located on both sides of the proton exchange membrane (20); the lower end of the electrode column (17) penetrates the cover plate (6) and extends into the interior of the reactor (5); the lower end of the electrode column (17) is rotatably connected to a conductive iron sheet (33), and the lower end of the conductive iron sheet (33) is fixedly connected to a plurality of electrode sheets (24) at equal intervals; the outer side of the conductive iron sheet (33) is fixedly connected to a driven gear (16), and the driven gear (16) is meshed with the driving gear (15).

4. A hydrogen and oxygen liquid separation device for green hydrogen production according to claim 1, characterized in that: A driving motor (30) is mounted on the upper end of the cover plate (6) via bolts. The output end of the driving motor (30) is connected to a driving gear. Positioning wheels (18) are meshed and mounted on both sides of the driving gear. The positioning wheels (18) on both sides are fixedly connected to corresponding worms (26).

5. A hydrogen and oxygen liquid separation device for green hydrogen production according to claim 4, characterized in that: Cleaning mechanisms are installed on both sides of the proton exchange membrane (20).

6. A hydrogen and oxygen liquid separation device for green hydrogen production according to claim 5, characterized in that: The cleaning mechanism includes a reciprocating screw (19) and a scraper (22); the reciprocating screw (19) is horizontally rotatably connected to both sides of the proton exchange membrane (20) inside the reactor (5), the worm (26) and the corresponding reciprocating screw (19) are meshed with each other, and reciprocating grooves are provided at both ends of the reciprocating screw (19), and round blocks are slidably engaged in the reciprocating grooves, and the bottom of the round block is fixedly connected to the top of the scraper (22), and the sides of the two scrapers (22) that are close to each other are in contact with the surface of the proton exchange membrane (20).

7. A hydrogen and oxygen liquid separation device for green hydrogen production according to claim 6, characterized in that: Support frames are symmetrically fixedly connected to both sides of the bottom of the proton exchange membrane (20), and the inner wall of the reactor (5) is provided with corresponding clamping grooves. 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 and oxygen liquid separation device for green hydrogen production according to claim 7, characterized in that: The bottom of the vibration plate (23) is connected to the guide rod (34).

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

10. A hydrogen and oxygen liquid separation device for green hydrogen production according to claim 9, characterized in that: Drainage outlets are provided on both sides of the lower end of the reactor (5), one drainage outlet is vertically downwardly fixedly connected to the positive electrode cavity discharge pipe (13), and the other drainage outlet is vertically downwardly fixedly connected to the negative electrode cavity discharge pipe (14); the positive electrode cavity discharge pipe (13) and the negative electrode cavity discharge pipe (14) are respectively located on both sides of the proton exchange membrane (20); the positive electrode cavity discharge pipe (13), the negative electrode cavity discharge pipe (14), the water inlet pipe (9), the hydrogen discharge pipe (11) and the oxygen discharge pipe (12) are all installed with switch valves; the upper ends of the positive electrode cavity discharge pipe (13) and the negative electrode cavity discharge pipe (14) are located inside the reactor (5) and are fixedly connected to a U-shaped material guide frame (40), and triangular discharge blocks (38) are relatively fixedly connected to the two sides of the vibration plate (23) above the U-shaped material guide frame (40).

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