A gas-liquid separation device for producing hydrogen by electrolysis of water

Abstract

A gas-liquid separation device for producing hydrogen by electrolysis of water, relates to the field of gas-liquid separation technology, comprises a separator housing, the separator housing is a square shell with upper and lower openings, the upper end of the separator housing is fixedly connected with an arc-shaped upper end cover, the lower end of the separator is fixedly connected with an arc-shaped lower end cover, and the separator housing is provided with a gravity sedimentation component, a centrifugal separation component, a baffle separation component and a microporous filtration component from bottom to top. The present invention solves the problems that the gas-liquid separator in the traditional technology is limited in function when used for producing hydrogen by electrolysis of water, cannot achieve diversified separation effects, and the separated droplets are not transferred in time and return to the gas phase, resulting in a reduced gas-liquid separation rate.

Description

Technical Field

[0001] The invention relates to the technical field of gas-liquid separation, and in particular to a gas-liquid separation device for producing hydrogen by electrolyzing water. Background Art

[0002] Hydrogen production by water electrolysis is a relatively convenient method for producing hydrogen. Direct current is passed into an electrolytic cell filled with electrolyte, and water molecules undergo electrochemical reactions on the electrodes, decomposing into hydrogen and oxygen.

[0003] There are three common technologies for producing hydrogen by electrolysis of water: alkaline electrolysis, proton membrane electrolysis and high temperature electrolysis. Different hydrogen production technologies have different advantages and disadvantages in terms of efficiency, energy consumption and cost. Due to its low cost, alkaline electrolysis technology is often used in large-scale processes for producing hydrogen by electrolysis of water.

[0004] The core component of alkaline electrolysis technology is the electrolytic cell, and the rest includes plates, frames, diaphragms, electrodes and BOP auxiliary systems. Among them, the BOP auxiliary system includes power supply system, control system, gas-liquid separation system, purification system, alkali system, water replenishment system, cooling and drying system and other auxiliary systems. The gas-liquid separation system includes gas-liquid separator, liquid collector, gas cooler, etc. Its main function is to filter out alkali in hydrogen and oxygen to reduce the workload of the drying system.

[0005] The main functional component of the gas-liquid separation system is the gas-liquid separator. Although there are many types of existing gas-liquid separators, due to design and structural defects, when used for gas-liquid separation in the process of electrolysis of water to produce hydrogen, the following problems often occur:

[0006] 1. The function of a single gas-liquid separator is limited during use, and it is impossible to achieve diversified separation effects according to actual separation requirements; when multiple gas-liquid separators are used in series, they occupy a large area, the gas-liquid separation process is too long, and the continuity of the work is poor. Hydrogen loss will occur during separation, resulting in a decrease in the output of hydrogen produced by water electrolysis.

[0007] 2. The gas-liquid separation rate is low. The separated droplets cannot be transferred in time and are easy to return to the gas phase, resulting in an increase in the gas-liquid separation cost.

[0008] In summary, the prior art obviously has inconveniences and defects in practical use, so it is necessary to improve it. Summary of the invention

[0009] In view of the defects in the prior art, the present invention provides a gas-liquid separation device for producing hydrogen by electrolysis of water, so as to solve the problems that the gas-liquid separator in the traditional technology is limited in function when used for producing hydrogen by electrolysis of water, cannot achieve diversified separation effects, and the separated droplets are not transferred in time and will return to the gas phase, resulting in a reduced gas-liquid separation rate.

[0010] To achieve the above object, the present invention provides the following technical solutions:

[0011] A gas-liquid separation device for producing hydrogen by electrolyzing water comprises a separator shell, wherein the separator shell is a square shell with upper and lower openings, an arc-shaped upper end cover is fixedly connected to the upper end of the separator shell, and an arc-shaped lower end cover is fixedly connected to the lower end of the separator, and a gravity sedimentation component, a centrifugal separation component, a baffle separation component and a microporous filtration component are respectively arranged in the separator shell from bottom to top.

[0012] As an optimized solution, the centrifugal separation assembly includes a cyclone cylinder, which is a conical cylinder with an opening at the lower end. A drain check valve is provided in the lower opening of the cyclone cylinder. A horizontal cyclone inlet pipe is fixedly connected to the outer peripheral wall of the cyclone cylinder near the lower end, and the cyclone inlet pipe passes through the transverse outer wall of the separator shell and extends to the outside thereof. A horizontal cyclone outlet pipe is fixedly connected to the outer peripheral wall of the cyclone cylinder near the upper end, and the cyclone outlet pipe passes through the transverse outer wall of the separator shell and extends to the outside thereof.

[0013] As an optimized solution, two upper and lower symmetrical limit clamps are fixedly connected to the inner circumferential wall of the cyclone cylinder, and each of the limit clamps supports a circular rotating plate, which is arranged close to the inner circumferential wall of the cyclone cylinder. A number of diversion tube bundles are fixed between the two circular rotating plates, and the inner diameter of each of the diversion tube bundles is arranged to gradually decrease from bottom to top in multiple stages.

[0014] As an optimized solution, a transmission bevel gear ring is fixedly connected to the upper surface of the circular rotating plate located below, and a transmission drive motor is fixedly connected to each lateral outer end face of the separator housing. The output shaft end of each transmission drive motor passes through the separator housing and the outer wall of the cyclone cylinder in turn and is fixedly connected to a bevel gear. The two bevel gears are respectively engaged with the transmission bevel gear ring for transmission.

[0015] As an optimized solution, the deflector separation assembly includes a deflector air inlet pipe, which is arranged directly above the swirl outlet pipe and fixed on a transverse outer wall of one side of the separator shell. The end of the deflector air inlet pipe extends into the separator shell and is fixedly connected to a diffusion end cover.

[0016] As an optimized solution, a rotating drive motor is fixedly connected to the lateral outer wall on the other side of the separator shell, and the rotating drive motor and the baffle inlet pipe are at the same horizontal height. The output shaft end of the rotating drive motor passes through the separator shell and is fixedly connected to a vertical square fixing plate, and a plurality of parallel baffles are fixedly connected to the lateral side end face of the square fixing plate.

[0017] As an optimized solution, a baffle exhaust pipe is fixedly connected to each longitudinal side wall of the separator shell, one end of each baffle exhaust pipe extends to the outside of the separator shell and is fixedly connected to a vacuum pump, and the other end extends to the inside of the separator shell and is fixedly connected to a corrugated connecting pipe.

[0018] As an optimized solution, an air collecting box is telescopically provided on each longitudinal side wall of the separator housing. The air collecting box and several of the baffles are at the same horizontal height. The air collecting box is a square box with a side opening. The end of the corrugated connecting pipe is fixedly connected to the closed side end face of the air collecting box, and a water-absorbing filler is fixed in the open end of the air collecting box.

[0019] As an optimized solution, a drain pipe is fixedly connected to the lower end of the arc-shaped lower end cover, a main drain valve is provided in the drain pipe, an exhaust pump is fixed to the upper surface of the arc-shaped upper end cover, and a plurality of centrally symmetrical supporting legs are fixedly connected to the circumferential outer wall of the separator housing near the lower end.

[0020] As an optimized solution, the gravity sedimentation assembly includes a sedimentation bend pipe, which is a U-shaped pipe. The two horizontal ports of the sedimentation bend pipe respectively pass through the lateral side walls of the separator shell and extend to the outside thereof. A liquid separation pipe is fixedly connected to the bottom outer peripheral wall of the sedimentation bend pipe, and a liquid separation valve is provided in the liquid separation pipe.

[0021] As an optimized solution, four centrally symmetrical electrically controlled telescopic cylinders are fixedly connected to the longitudinal side walls of the separator housing corresponding to each of the air collecting boxes, and the telescopic end of each of the electrically controlled telescopic cylinders is fixedly connected to the back of the air collecting box.

[0022] As an optimized solution, a horizontal isolation plate is provided above several of the baffles, and the isolation plate is fixed to the circumferential inner wall of the separator shell. Two symmetrical confluence bends are fixed on the isolation plate, and the ends of the two confluence bends extend to the bottom of the isolation plate and the openings are arranged opposite to each other.

[0023] As an optimized solution, the microporous filtration component includes a microporous filter element, and the microporous filter element includes two circular cardboards arranged in parallel, and a cylindrical folded microporous filter membrane is fixed between the two circular cardboards.

[0024] As an optimized solution, the upper end of the converging elbow is fixedly connected to the corresponding circular clamping plate.

[0025] As an optimized solution, a partition mechanism is provided between the centrifugal separation component and the baffle separation component, and the partition mechanism includes two symmetrically arranged fixed partitions, the ends of each of the fixed partitions are respectively fixedly connected to the transverse inner wall of the separator shell, and a telescopic partition is provided below each of the fixed partitions. Two horizontal telescopic cylinders are respectively fixedly connected to the transverse inner wall of the separator shell corresponding to each of the telescopic partitions, and the telescopic ends of the horizontal telescopic cylinders are fixedly connected to the transverse end faces of the telescopic partitions.

[0026] As an optimized solution, a vacuum pump is fixedly connected to the transverse outer wall of the separator housing, and the vacuum pump is arranged below the rotating drive motor and above the transmission drive motor, and the vacuum pump is connected to the separator housing.

[0027] As an optimized solution, a first diverter pipe is fixedly connected between the sedimentation bend pipe and the swirl inlet pipe, the first diverter pipe is a three-way pipe, and a first diverter valve is provided in the first diverter pipe; a second diverter pipe is fixedly connected between the swirl outlet pipe and the deflection inlet pipe, the second diverter pipe is a three-way pipe, and a second diverter valve is provided in the second diverter pipe.

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] The present invention provides a variety of gas-liquid separation methods including gravity sedimentation, centrifugal separation, baffle separation, packing separation and microporous filtration separation, and can achieve diversified separation effects through the organic combination of different separation methods to achieve different separation requirements. Specifically, if the separation requirements are relatively low, gravity sedimentation separation can be selected; if the separation requirements are general, baffle separation or centrifugal separation can be selected; if the separation requirements are relatively high, packing separation can be selected; if the separation requirements are very high, microporous filtration separation can be selected.

[0030] The gravity sedimentation component provided in the present invention can realize preliminary gas-liquid separation according to the difference in specific gravity between gas and liquid and the separation tendency of liquid and gas in the gravity field. Specifically, the gravity sedimentation component includes a sedimentation bend. When the gas-liquid mixture flows through the sedimentation bend, the liquid settles and collects at the bottom of the sedimentation bend, and the gas continues to flow along the inner wall of the sedimentation bend, thereby achieving the effect of preliminary separation. After gravity sedimentation separation, according to the separation requirements, by switching the first diverter valve, the gas can be controlled to be directly discharged or to enter the separator housing through the cyclone inlet pipe for secondary separation.

[0031] The centrifugal separation component provided in the present invention can realize further separation of the gas-liquid mixture. Specifically, the centrifugal separation component includes two circular rotating plates, which are rotatably mounted in the cyclone tube and can rotate around the axis under the drive of the transmission drive motor to provide centrifugal force for gas-liquid separation; further, a plurality of shunt tube bundles are fixed between the two circular rotating plates, and the inner diameter of the shunt tube bundle is set in a multi-stage tapered manner to form a special flow channel. When the fluid passes through the shunt tube bundle, it will collide with its inner wall multiple times quickly, so that the flow direction of the fluid changes. During the flow direction change process, the liquid in the shunt tube bundle will follow the rotation. Due to the effect of surface tension, the liquid will aggregate on the inner wall of the shunt tube bundle. As the amount of gathered liquid increases, more and more liquid will slide down the shunt tube bundle into the cyclone tube and then be discharged; after the centrifugal separation is completed, according to the separation requirements, by switching the second shunt valve, the gas can be controlled to be discharged directly or enter the separator housing through the deflection inlet pipe to perform three separations.

[0032] The baffle separation assembly provided in the present invention can simultaneously realize the baffle reversal and filler separation of the gas-liquid mixture. Specifically, the baffle separation assembly includes a plurality of baffles arranged in parallel, the ends of which are fixedly connected to the square fixed plate. By starting the rotating drive motor to drive the square fixed plate to rotate, the baffle can be driven to switch between the horizontal and vertical states, thereby converting the gas introduced horizontally into the longitudinal or vertical state; the gas flowing longitudinally passes through the water-absorbing filler and enters the gas collecting box, the liquid mixed in the gas is absorbed by the water-absorbing filler, and then the gas is extracted by the vacuum pump; the gas flowing vertically first collides with the square fixed plate to reverse direction, so that the liquid adheres to the inner wall of the square fixed plate, and then the gas flows upward and the liquid flows downward, thereby realizing the separation of gas and liquid.

[0033] The microporous filter assembly provided in the present invention can achieve very high requirements for gas-liquid separation. Specifically, the microporous filter assembly includes a microporous filter element, the microporous filter element is externally connected to two converging elbows, the lower port of the converging elbow passes through the isolation plate and extends to the bottom thereof, the gas that has completed the baffle separation enters the microporous filter element through the converging elbow, and by starting the exhaust pump to change the internal air pressure of the separator housing, the gas entering the microporous filter element can be forced to pass through the folded microporous filter membrane to achieve efficient separation of gas and liquid.

[0034] Each component provided in the present invention can realize the separate transfer of gas and liquid after the gas-liquid separation is completed, and collect and discharge the liquid separated in each link in real time, thereby avoiding the separated liquid returning to the gas phase, resulting in a reduced gas-liquid separation rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the specific embodiments or the description of the prior art. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual scale.

[0036] Figure 1 It is a schematic cross-sectional view of the internal structure of each component in the present invention in the main viewing direction;

[0037] Figure 2 It is a schematic cross-sectional view of the internal structure of each component in the present invention in the side view direction;

[0038] Figure 3 It is a schematic cross-sectional view of the internal structure of the gravity settling assembly in the present invention in a top view direction;

[0039] Figure 4 It is a schematic cross-sectional view of the internal structure of the centrifugal separation assembly in the present invention when viewed from above;

[0040] Figure 5 It is a schematic cross-sectional view of the internal structure of the baffle separation assembly in the present invention in a top view direction;

[0041] Figure 6 It is a schematic cross-sectional view of the internal structure of the microporous filtration component in the present invention when viewed from above;

[0042] Figure 7 It is a schematic diagram of the external overall structure of the present invention in the main viewing direction.

[0043] In the figure: 1- separator housing, 2- arc-shaped upper end cover, 3- arc-shaped lower end cover, 4- discharge pipe, 5- discharge main valve, 6- exhaust pump, 7- support bracket, 8- sedimentation elbow, 9- liquid separation pipe, 10-liquid separation valve, 11- swirl cylinder, 12- discharge stop valve, 13- swirl air inlet pipe, 14- swirl air outlet pipe, 15- limit clamp ring, 16- circular rotating plate, 17- diverter pipe bundle, 18- transmission bevel gear ring, 19- transmission drive motor, 20- bevel gear, 21- baffle air inlet pipe, 22- expansion end cover, 23-rotating drive motor, 24-square fixed plate, 25-baffle, 26-baffle exhaust pipe, 27-vacuum pump, 28-corrugated connecting pipe, 29-gas collecting box, 30-water-absorbing filler, 31-electrically controlled telescopic cylinder, 32-isolation plate, 33-merging elbow, 34-circular card plate, 35-folded microporous filter membrane, 36-fixed partition, 37-telescopic partition, 38-horizontal telescopic cylinder, 39-vacuum pump, 40-first diverter pipe, 41-first diverter valve, 42-second diverter pipe, 43-second diverter valve. DETAILED DESCRIPTION

[0044] The following embodiments of the technical solution of the present invention are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and are therefore only used as examples, and cannot be used to limit the protection scope of the present invention.

[0045] like Figures 1 to 7 As shown, a gas-liquid separation device for producing hydrogen by electrolyzing water includes a separator housing 1. The separator housing 1 is a square shell with upper and lower openings. An arc-shaped upper end cover 2 is fixedly connected to the upper end of the separator housing 1, and an arc-shaped lower end cover 3 is fixedly connected to the lower end of the separator. A gravity sedimentation component, a centrifugal separation component, a baffle separation component and a microporous filtration component are respectively arranged in the separator housing 1 from bottom to top.

[0046] A drain pipe 4 is fixedly connected to the lower end of the arc-shaped lower end cover 3, and a drain main valve 5 is arranged in the drain pipe 4. An exhaust pump 6 is fixed to the upper surface of the arc-shaped upper end cover 2. A plurality of centrally symmetrical supporting legs 7 are fixedly connected to the circumferential outer wall of the separator housing 1 near the lower end.

[0047] The gravity sedimentation assembly includes a sedimentation elbow 8, which is a U-shaped tube. The two horizontal ports of the sedimentation elbow 8 respectively pass through the lateral side walls of the separator shell 1 and extend to the outside thereof. A liquid separation pipe 9 is fixedly connected to the bottom peripheral wall of the sedimentation elbow 8, and a liquid separation valve 10 is provided in the liquid separation pipe 9.

[0048] The centrifugal separation assembly includes a cyclone cylinder 11, which is fixedly mounted on the inner circumferential wall of the separator housing 1. The cyclone cylinder 11 is a conical cylinder with an opening at the lower end. A drain check valve 12 is provided in the lower opening of the cyclone cylinder 11. A horizontal cyclone air inlet pipe 13 is fixedly connected to the outer circumferential wall of the cyclone cylinder 11 near the lower end. The cyclone air inlet pipe 13 passes through the lateral outer wall of the separator housing 1 and extends to the outside thereof. A horizontal cyclone air outlet pipe 14 is fixedly connected to the outer circumferential wall of the cyclone cylinder 11 near the upper end. The cyclone air outlet pipe 14 passes through the lateral outer wall of the separator housing 1 and extends to the outside thereof.

[0049] Two upper and lower symmetrical limit clamps 15 are fixedly connected to the inner circumferential wall of the cyclone cylinder 11, and each limit clamp 15 supports a circular rotating plate 16. The circular rotating plate 16 is arranged close to the inner circumferential wall of the cyclone cylinder 11. A plurality of shunt tube bundles 17 are fixed between the two circular rotating plates 16, and the inner diameter of each shunt tube bundle 17 is arranged to gradually decrease from bottom to top in multiple stages.

[0050] A transmission bevel gear ring 18 is fixedly connected to the upper surface of the circular rotating plate 16 located below, and a transmission drive motor 19 is fixedly connected to each lateral outer end surface of the separator housing 1. The output shaft end of each transmission drive motor 19 passes through the separator housing 1 and the outer wall of the cyclone cylinder 11 in turn and is fixedly connected to a bevel gear 20. The two bevel gears 20 are respectively engaged with the transmission bevel gear ring 18 for transmission.

[0051] The baffle separation assembly includes a baffle inlet pipe 21, which is arranged directly above the swirl outlet pipe 14 and fixed on a side lateral outer wall of the separator shell 1. The end of the baffle inlet pipe 21 extends into the separator shell 1 and is fixedly connected to a flow expansion end cover 22.

[0052] A rotating drive motor 23 is fixedly connected to the lateral outer wall on the other side of the separator housing 1. The rotating drive motor 23 and the baffle inlet pipe 21 are at the same horizontal height. The end of the output shaft of the rotating drive motor 23 passes through the separator housing 1 and is fixedly connected to a vertical square fixing plate 24. A plurality of parallel baffles 25 are fixedly connected to the lateral side end surface of the square fixing plate 24.

[0053] A baffle exhaust pipe 26 is fixedly connected to each longitudinal side wall of the separator housing 1. One end of each baffle exhaust pipe 26 extends to the outside of the separator housing 1 and is fixedly connected to an exhaust pump 27, and the other end extends to the inside of the separator housing 1 and is fixedly connected to a corrugated connecting pipe 28.

[0054] An air collecting box 29 is telescopically provided on each longitudinal side wall of the separator housing 1. The air collecting box 29 and the plurality of baffles 25 are at the same horizontal height. The air collecting box 29 is a square box with a side opening. The end of the corrugated connecting pipe 28 is fixedly connected to the closed side end surface of the air collecting box 29. A water-absorbing filler 30 is fixed in the open end of the air collecting box 29.

[0055] Four centrally symmetrical electric telescopic cylinders 31 are fixedly connected to the longitudinal side walls of the separator housing 1 corresponding to each air collecting box 29 , and the telescopic end of each electric telescopic cylinder 31 is fixedly connected to the back side of the air collecting box 29 .

[0056] A horizontal partition plate 32 is provided above the plurality of baffles 25. The partition plate 32 is fixedly connected to the circumferential inner wall of the separator housing 1. Two symmetrical confluence elbows 33 are fixed on the partition plate 32. The ends of the two confluence elbows 33 extend to the bottom of the partition plate 32 and the openings are arranged opposite to each other.

[0057] The microporous filtration component comprises a microporous filter element, which comprises two circular clamping plates 34 arranged in parallel, and a cylindrical folded microporous filter membrane 35 is fixed between the two circular clamping plates 34 .

[0058] The upper end of the confluence elbow 33 is fixedly connected to the corresponding circular clamping plate 34 .

[0059] A partition mechanism is provided between the centrifugal separation component and the baffle separation component, and the partition mechanism includes two symmetrically arranged fixed partitions 36. The ends of each fixed partition 36 are respectively fixedly connected to the transverse inner wall of the separator shell 1, and a telescopic partition 37 is provided below each fixed partition 36. Two horizontal telescopic cylinders 38 are respectively fixedly connected to the transverse inner wall of the separator shell 1 corresponding to each telescopic partition 37, and the telescopic ends of the horizontal telescopic cylinders 38 are fixedly connected to the transverse end faces of the telescopic partitions 37.

[0060] A vacuum pump 39 is fixedly connected to the transverse outer wall of the separator housing 1 . The vacuum pump 39 is arranged below the rotating drive motor 23 and above the transmission drive motor 19 . The vacuum pump 39 is connected to the separator housing 1 .

[0061] A first diverter pipe 40 is fixedly connected between the settling bend 8 and the swirl inlet pipe 13. The first diverter pipe 40 is a three-way pipe. A first diverter valve 41 is provided in the first diverter pipe 40. A second diverter pipe 42 is fixedly connected between the swirl outlet pipe 14 and the deflection inlet pipe 21. The second diverter pipe 42 is a three-way pipe. A second diverter valve 43 is provided in the second diverter pipe 42.

[0062] When the present invention is in use: first, the vacuum pump 39 is turned on to evacuate the inside of the device, and then the gas-liquid mixture to be separated is passed from the open end into the sedimentation bend 8, and the gas-liquid mixture flows along the sedimentation bend 8. Due to the different specific gravities of gas and liquid, the liquid and gas tend to separate in the gravity field. During the flow, the liquid is subjected to a greater gravity effect, which will produce a downward speed, while the gas still flows in the original direction, so that most of the liquid adheres to the inner wall surface of the sedimentation bend 8 and gathers together. The liquid separator 10 is opened, and the liquid is discharged through the liquid separator 9; the first diverter valve 41 is opened, and the gas containing a small amount of liquid enters the cyclone cylinder 11 through the first diverter pipe 40 and the cyclone inlet pipe 13, and the two transmission drive motors are turned on respectively. The transmission drive motor 19 drives the bevel gear 20 to rotate, and through the transmission of the transmission bevel gear ring 18, drives the two circular rotating plates 16 and a plurality of shunt tube bundles 17 to rotate around the axis. Since the inner diameter of the shunt tube bundle 17 is set in a multi-stage tapered manner, a special flow channel is formed, so that when the fluid passes through, it will have multiple rapid collisions with the inner wall of the shunt tube bundle 17 to change the flow direction, so that the kinetic energy is reduced. Further, the liquid in the shunt tube bundle 17 will follow the rotation. As the kinetic energy of the liquid decreases, the rotation radius decreases. Due to the surface tension, the liquid collides with the inner surface of the shunt tube bundle 17 and agglomerates. The accumulated liquid becomes larger and larger, separates from the gas, and is adsorbed on the inner circumferential wall of the shunt tube bundle 17; open the discharge check valve 12, and the liquid flows along the shunt tube bundle 17. The tube bundle 17 slides down into the cyclone tube 11 and is discharged from the lower end opening of the cyclone tube 11; the rotation drive motor 23 is started, and the rotation drive motor 23 drives the square fixed plate 24 and a plurality of baffles 25 to rotate; when the baffles 25 are turned to a horizontal state, the gas-liquid filler can be separated. Specifically, the electric control telescopic cylinder 31 is controlled to extend, and the two gas collecting boxes 29 are driven to move in opposite directions and respectively engage on both sides of a plurality of baffles 25; the second diverter valve 43 is opened, and the gas containing very little liquid enters the cyclone outlet pipe 14 from the upper end of the diverter tube bundle 17, and then enters the baffle inlet pipe 21 through the second diverter pipe 42, and after the expansion of the expansion end cover 22, enters between the plurality of baffles 25, and is diverted through the baffles 25 to turn the gas into the horizontal direction. The gas in the longitudinal direction is transformed into the longitudinal direction. The gas flowing in the longitudinal direction passes through the water-absorbing filler 30, enters the gas collecting box 29 after drying, and is then extracted by the vacuum pump 27; when the baffle 25 is turned to the vertical state, the gas-liquid microporous filtration separation can be performed. Specifically, the gas is expanded by the expansion end cover 22 and then transformed from the horizontal direction to the vertical direction in a number of baffles 25. The gas introduced horizontally will collide with the side wall of the square fixed plate 24, so that the residual liquid therein is collected and discharged under the action of gravity, and the gas continues to flow upward and enters the microporous filter element through the converging elbow 33; the exhaust pump 6 is turned on. Due to the action of air pressure, the gas entering the microporous filter element passes through the folded microporous filter membrane 35, so that the residual liquid in the gas is retained by the folded microporous filter membrane 35, thereby achieving the purpose of efficient separation;After the gas-liquid separation is completed, the horizontal telescopic cylinder 38 is controlled to shorten, and the telescopic partition 37 is driven to open, so that the liquid above the fixed partition 36 flows downward and enters the separator housing 1. After all the liquids are converged in the separator housing 1, the main drain valve 5 is opened to discharge the liquid from the drain pipe 4. ;

[0063] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents, and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and specification of the present invention.

Claims

1. A gas-liquid separation device for producing hydrogen by electrolysis of water, characterized in that: The separator shell (1) comprises a square shell with upper and lower openings, an arc-shaped upper end cover (2) being fixedly connected to the upper end of the separator shell (1), and an arc-shaped lower end cover (3) being fixedly connected to the lower end of the separator shell (1), and a gravity sedimentation component, a centrifugal separation component, a baffle separation component and a microporous filtration component are respectively arranged in the separator shell (1) from bottom to top; The centrifugal separation assembly comprises a cyclone cylinder (11), the cyclone cylinder (11) being a conical cylinder with an opening at the lower end, a liquid discharge check valve (12) being arranged in the lower end opening of the cyclone cylinder (11), a horizontal cyclone air inlet pipe (13) being fixedly connected to an outer peripheral wall of the cyclone cylinder (11) near the lower end, the cyclone air inlet pipe (13) passing through a transverse outer wall of the separator housing (1) and extending to the outside thereof, and a horizontal cyclone air outlet pipe (14) being fixedly connected to an outer peripheral wall of the cyclone cylinder (11) near the upper end, the cyclone air outlet pipe (14) passing through a transverse outer wall of the separator housing (1) and extending to the outside thereof; Two upper and lower symmetrical limiting clamps (15) are fixedly connected to the inner peripheral wall of the cyclone cylinder (11); each limiting clamp (15) is supported by a circular rotating plate (16); the circular rotating plate (16) is arranged in close contact with the inner peripheral wall of the cyclone cylinder (11); a plurality of flow dividing tube bundles (17) are fixed between the two circular rotating plates (16); the inner diameter of each flow dividing tube bundle (17) is arranged to gradually decrease in multiple stages from bottom to top; A transmission bevel gear ring (18) is fixedly connected to the upper surface of the circular rotating plate (16) located at the bottom, and a transmission drive motor (19) is fixedly connected to each lateral outer end surface of the separator housing (1), and the output shaft end of each transmission drive motor (19) passes through the separator housing (1) and the outer wall of the cyclone cylinder (11) in sequence and is fixedly connected to a bevel gear (20), and the two bevel gears (20) are respectively engaged with the transmission bevel gear ring (18) for transmission; The baffle separation assembly comprises a baffle inlet pipe (21), the baffle inlet pipe (21) being arranged directly above the swirl outlet pipe (14) and fixed to a transverse outer wall of one side of the separator housing (1), the end of the baffle inlet pipe (21) extending into the separator housing (1) and being fixedly connected to a flow expansion end cover (22); A rotary drive motor (23) is fixedly connected to the lateral outer wall of the other side of the separator housing (1); the rotary drive motor (23) and the baffled air inlet pipe (21) are at the same level; the output shaft end of the rotary drive motor (23) passes through the separator housing (1) and is fixedly connected to a vertical square fixing plate (24); a plurality of baffles (25) arranged in parallel are fixedly connected to the lateral side end surface of the square fixing plate (24); A baffled exhaust pipe (26) is fixedly connected to each longitudinal side wall of the separator housing (1); one end of each baffled exhaust pipe (26) extends to the outside of the separator housing (1) and is fixedly connected to an air pump (27), and the other end extends to the inside of the separator housing (1) and is fixedly connected to a corrugated connecting pipe (28); An air collecting box (29) is telescopically provided on each longitudinal side wall of the separator housing (1), the air collecting box (29) and the plurality of baffles (25) are at the same level, the air collecting box (29) is a square box with a side opening, the end of the corrugated connecting pipe (28) is fixedly connected to the closed side end surface of the air collecting box (29), and a water-absorbing filler (30) is fixed in the open end of the air collecting box (29); The gravity sedimentation assembly comprises a sedimentation elbow (8), the sedimentation elbow (8) being a U-shaped tube, the two horizontal ports of the sedimentation elbow (8) respectively passing through the lateral side walls of the separator housing (1) and extending to the outside thereof, a liquid separation pipe (9) being fixedly connected to the outer peripheral wall of the bottom of the sedimentation elbow (8), and a liquid separation valve (10) being provided in the liquid separation pipe (9); A first flow divider (40) is fixedly connected between the settling bend (8) and the swirl air inlet pipe (13), and a second flow divider (42) is fixedly connected between the swirl air outlet pipe (14) and the baffle air inlet pipe (21).

2. A gas-liquid separation device for producing hydrogen by electrolysis of water according to claim 1, characterized in that: A liquid discharge pipe (4) is fixedly connected to the lower end of the arc-shaped lower end cover (3), a liquid discharge main valve (5) is arranged in the liquid discharge pipe (4), an exhaust pump (6) is fixedly connected to the upper surface of the arc-shaped upper end cover (2), and a plurality of centrally symmetrical supporting legs (7) are fixedly connected to the circumferential outer wall of the separator housing (1) near the lower end.

3. A gas-liquid separation device for producing hydrogen by electrolysis of water according to claim 1, characterized in that: Four centrally symmetrical electrically controlled telescopic cylinders (31) are fixedly connected to the longitudinal side walls of the separator housing (1) corresponding to each of the air collecting boxes (29), and the telescopic ends of each of the electrically controlled telescopic cylinders (31) are fixedly connected to the back side of the air collecting box (29).

4. A gas-liquid separation device for producing hydrogen by electrolysis of water according to claim 1, characterized in that: A horizontal isolation plate (32) is provided above the plurality of baffles (25), the isolation plate (32) being fixedly connected to the circumferential inner wall of the separator housing (1), and two symmetrical converging bends (33) being fixed on the isolation plate (32), the ends of the two converging bends (33) extending to the bottom of the isolation plate (32) and the openings being arranged opposite to each other; The microporous filtration assembly comprises a microporous filter element, the microporous filter element comprises two circular cardboards (34) arranged in parallel, and a cylindrical folded microporous filter membrane (35) is fixed between the two circular cardboards (34); The upper end of the converging elbow (33) is fixedly connected to the corresponding circular clamping plate (34).

5. A gas-liquid separation device for producing hydrogen by electrolysis of water according to claim 1, characterized in that: A partition mechanism is provided between the centrifugal separation component and the baffle separation component, the partition mechanism comprising two symmetrically arranged fixed partitions (36), the ends of each of the fixed partitions (36) being fixedly connected to the transverse inner wall of the separator housing (1), a telescopic partition (37) being provided below each of the fixed partitions (36), two horizontal telescopic cylinders (38) being fixedly connected to the transverse inner wall of the separator housing (1) corresponding to each of the telescopic partitions (37), the telescopic ends of the horizontal telescopic cylinders (38) being fixedly connected to the transverse end faces of the telescopic partitions (37).

6. A gas-liquid separation device for producing hydrogen by electrolysis of water according to claim 1, characterized in that: A vacuum pump (39) is fixedly connected to the transverse outer wall of the separator housing (1). The vacuum pump (39) is arranged below the rotary drive motor (23) and above the transmission drive motor (19). The vacuum pump (39) is connected to the separator housing (1).

7. A gas-liquid separation device for producing hydrogen by electrolysis of water according to claim 1, characterized in that: The first flow diverter pipe (40) is a three-way pipe, and a first flow diverter valve (41) is provided in the first flow diverter pipe (40); the second flow diverter pipe (42) is a three-way pipe, and a second flow diverter valve (43) is provided in the second flow diverter pipe (42).

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