Integrated device for hydrogen production from pure water, liquid hydrogen storage and hydrogen addition

Abstract

The present invention discloses an integrated device for pure water hydrogen production, liquid hydrogen storage and hydrogen addition, which relates to the technical field of hydrogen energy. It includes a hydrogen production structure and a hydrogen storage and hydrogen addition structure. A gas transmission pipeline and a pretreatment tank are arranged between the hydrogen production structure and the hydrogen storage and hydrogen addition structure. The hydrogen production structure, the pretreatment tank and the hydrogen storage and hydrogen addition structure are connected through the gas transmission pipeline. A working chamber is provided in the pretreatment tank to control the flow path and speed of hydrogen according to the inflow amount of hydrogen, effectively separate the droplets in the hydrogen. The rotation structure and the blocking structure of the first baffle and the displacement structure and the flipping structure of the second baffle cooperate with each other to change the size of the channel for hydrogen to flow through according to the flow rate and velocity of hydrogen, and at the same time, corresponding structural changes occur, prompting the hydrogen to flow in a bent manner, increasing the contact area between the hydrogen and the surface of the component, and effectively removing the droplets by means of inertia, collision and adsorption. After being processed by multiple groups of baffle components, it is filtered through a sieve component to obtain high-purity hydrogen.

Description

Technical Field

[0001] The present invention relates to the technical field of hydrogen energy, in particular to an integrated device for producing hydrogen from pure water and liquid hydrogen storage and hydrogen addition. Background Art

[0002] The traditional water electrolysis hydrogen production process is one of the more common hydrogen production methods. However, during the electrolysis process, the electrolyte is strongly agitated and splashed under the action of the electric field, and the hydrogen gas generated inevitably contains a large amount of electrolyte droplets. If these droplets are not effectively removed, it will bring many intractable problems to the subsequent hydrogen storage and hydrogen addition applications.

[0003] The Chinese patent application with the authorization announcement number CN109161917B discloses an integrated device for producing hydrogen from pure water and direct liquid hydrogen storage and hydrogen addition and its control method. The device includes a direct hydrogen addition electrolytic cell connected to a power supply, a deionized water circulation system, and a liquid organic hydrogen storage material circulation system; deionized water is provided on the anode side of the direct hydrogen addition electrolytic cell, and a liquid organic hydrogen storage material is provided on the cathode side. The direct hydrogen addition electrolytic cell is sequentially provided with a microporous titanium plate, an electrolyzed water catalytic layer, a proton exchange membrane, and a new proton / electron conductor catalytic layer from the anode to the cathode; the microporous titanium plate is connected to the deionized water circulation system, and the deionized water circulation system is sequentially connected by a temperature sensor, an oxygen gas-liquid separator, a deionized water tank, a water pump, a flow sensor, and a pressure sensor, and the temperature sensor and the pressure sensor are respectively connected to one end of the microporous titanium plate.

[0004] In terms of hydrogen addition, the hydrogenation process of impure hydrogen entering the hydrogen addition device requires precise control of the hydrogen flow rate and pressure. If there are droplets in the hydrogen and the flow rate is unstable, it will make the hydrogenation process difficult to accurately regulate, affecting the efficiency and quality of hydrogen addition and unable to meet the demand for precise hydrogen supply. From the perspective of existing hydrogen treatment technologies, the traditional hydrogen purification process is complex and cumbersome. It often requires multiple independent separation devices, such as gas-liquid separators, filters, etc., to work in series in sequence. This not only increases the floor area of the system and is not suitable for deployment in places with limited space, such as urban hydrogen refueling stations or distributed energy sites; but also the purchase, installation, and maintenance costs of the equipment are high, increasing the operating cost of the entire hydrogen industry chain.

[0005] Furthermore, the traditional hydrogen production process has obvious deficiencies in the recovery and treatment of the electrolyte. Due to the lack of an effective integrated recovery design, a large amount of electrolyte is difficult to be recycled and reused after being carried out with hydrogen, which not only causes waste of raw materials and increases the hydrogen production cost, but also pollutes the surrounding environment due to the random discharge of the electrolyte, having a negative impact on the ecological environment such as soil and water bodies, and not meeting the requirements of modern green energy development.

[0006] Therefore, the present invention proposes an integrated device for producing hydrogen from pure water and liquid hydrogen storage and hydrogen addition to solve the above problems. Summary of the Invention

[0007] In view of the problems existing in the above-mentioned prior art, the present invention is proposed.

[0008] To solve the above technical problems, the present invention provides the following technical solution: an integrated device for pure water hydrogen production and liquid hydrogen storage and hydrogenation, which includes a hydrogen production structure and a hydrogen storage and hydrogenation structure. A gas transmission pipeline and a pretreatment tank are provided between the hydrogen production structure and the hydrogen storage and hydrogenation structure. The hydrogen production structure, the pretreatment tank and the hydrogen storage and hydrogenation structure are connected through the gas transmission pipeline. A working chamber is provided in the pretreatment tank;

[0009] Among them, a plurality of sets of baffle components adapted to the working chamber are arranged along the axial direction of the working chamber of the pretreatment tank. A screw rod is provided between the plurality of sets of baffle components and connected through the screw rod. Each set of baffle components includes a first baffle member and a second baffle member. The first baffle member includes a rotating structure and a blocking structure. The second baffle member includes a displacement structure and a flipping structure. The blocking structure and the flipping structure are fixed to the inner wall of the pretreatment tank. The rotating structure and the displacement structure are arranged on the surface of the screw rod. The rotating structure is driven by the screw rod to rotate to drive the blocking structure to open or contract, so as to form a direct current channel or a slot channel for hydrogen to pass through. The displacement structure is driven by the screw rod to displace along the axial direction of the screw rod to pull or squeeze the flipping structure, so as to drive the flipping structure to flip along the axial direction of the screw rod, so as to form a notch or slit for hydrogen to pass through. The screw rod drives the rotating structure or the displacement structure to change the size of the flow channel for hydrogen to flow through to regulate the hydrogen flow rate, and at the same time changes the flow path of the hydrogen to drive the hydrogen to contact the first baffle member and the second baffle member, so as to separate the electrolyte droplets in the hydrogen.

[0010] As a preferred scheme of the integrated device for pure water hydrogen production and liquid hydrogen storage and hydrogenation of the present invention, wherein: the gas transmission pipeline includes a first transmission pipeline and a second transmission pipeline. The first transmission pipeline is used to connect the hydrogen production structure and the pretreatment tank, and introduce the hydrogen in the hydrogen production structure into the working chamber of the pretreatment tank. The second transmission pipeline is used to connect the pretreatment tank and the hydrogen storage and hydrogenation structure, and introduce the hydrogen in the working chamber of the pretreatment tank into the hydrogen storage and hydrogenation structure;

[0011] The working chamber of the pretreatment tank is arranged in a funnel shape. The first transmission pipeline is connected to the flared end of the pretreatment tank, and a set of electrolyte recovery pipes is connected to the flared end of the pretreatment tank. One end of the electrolyte recovery pipe passing through the hydrogen production structure is inserted into the electrolyte. The screw rod passes through the end face of the pretreatment tank far from the first transmission pipeline and is connected to a driving motor. The second transmission pipeline is connected to the constricted end of the pretreatment tank.

[0012] As a preferred embodiment of the integrated device for pure water hydrogen production, liquid hydrogen storage and hydrogen addition according to the present invention, wherein: sieve components and three-way components are respectively provided at both ends of the working chamber in the pretreatment tank. The three-way component is configured with a first flow channel and a second flow channel for hydrogen to flow through. The hydrogen transmitted through the first transmission pipeline passes through the first flow channel or the second flow channel, and is deflected and separated by the first baffle and the second baffle, and then flows to the sieve component for secondary sieving and separation.

[0013] As a preferred embodiment of the integrated device for pure water hydrogen production, liquid hydrogen storage and hydrogen addition according to the present invention, wherein: the three-way component includes a three-way plate, a left sealing member and a right sealing member. A circular through-hole is formed at the center of the three-way plate to form the first flow channel, and a plurality of rectangular through-grooves are annularly penetrated on the surface of the three-way plate at equal intervals to form the second flow channel. The left sealing member is used to seal the first flow channel, and the right sealing member is used to seal the second flow channel;

[0014] Both the left sealing member and the right sealing member are threadedly connected to the screw rod, and the screw rod drives the left sealing member and the right sealing member to perform synchronous and co-directional linear displacement.

[0015] As a preferred embodiment of the integrated device for pure water hydrogen production, liquid hydrogen storage and hydrogen addition according to the present invention, wherein: a plurality of limiting plates are further fixed on the inner wall of the pretreatment tank. The screw rod driving displacement structure linearly displaces along the limiting plates. The displacement structure includes a lining sleeve, and a retaining piece and a limiting frame clamped in the limiting plates are respectively fixed at both ends of the lining sleeve. A traction rope is connected to the side of the retaining piece facing away from the limiting frame, and the retaining piece is connected to a flipping structure through the traction rope;

[0016] The screw rod drives the retaining piece to move away from the flipping structure through the lining sleeve and the limiting frame, so that the traction rope pulls the flipping structure to deflect away from the driving motor. The screw rod drives the retaining piece to move towards the flipping structure through the lining sleeve and the limiting frame, so that the retaining piece abuts against the flipping structure, so that the flipping structure deflects towards the driving motor.

[0017] As a preferred embodiment of the integrated device for pure water hydrogen production, liquid hydrogen storage and hydrogen addition according to the present invention, wherein: the number of flipping structures in each set of baffle components is four. The flipping structure includes a connecting seat fixed on the inner wall of the pretreatment tank. A flipping plate is rotatably connected to the surface of the connecting seat. The bottom of the flipping plate is concave in a semi-circular shape. A circular notch for hydrogen to pass through is formed at the center of the semi-circular concave parts of the four flipping plates. The aperture of the circular notch is smaller than the diameter of the retaining piece.

[0018] The four flipping plates are located in the same horizontal plane, and two adjacent flipping plates are mutually attached. The four flipping plates form a sealing plate with a central through-hole.

[0019] As a preferred embodiment of the integrated device for pure water hydrogen production, liquid hydrogen storage and hydrogen addition of the present invention, wherein: the plugging structure includes a circular through plate fixed to the inner wall of the pretreatment tank. The circular through plate is concavely formed with a square through groove, and arc-shaped grooves are provided outward on the four sides of the square through groove. Vertical plates are inserted into the arc-shaped grooves, and the rotating structure opens and closes along the vertical plates. The circular through plate is provided with a plurality of diversion ports at the positions of the arc-shaped grooves.

[0020] As a preferred embodiment of the integrated device for pure water hydrogen production, liquid hydrogen storage and hydrogen addition of the present invention, wherein: the rotating structure includes a rotating unit and a opening and closing unit. The rotating unit includes a sleeve threadedly connected to the surface of a screw rod. The edge of the sleeve extends outward and is lengthened. The opening and closing unit includes four groups of triangular arc plates. Four vertical plates are inserted into the four groups of triangular arc plates. A driving plate is connected between the triangular arc plates and the sleeve. Two positioning pins are respectively nested at both ends of the driving plate. One positioning pin is fixed to the surface of the triangular arc plate, and the other positioning pin is fixed to the lengthened edge of the sleeve.

[0021] As a preferred embodiment of the integrated device for pure water hydrogen production, liquid hydrogen storage and hydrogen addition of the present invention, wherein: the sieving assembly is arranged inside the reduced diameter end of the working chamber and nested with the screw rod. The connecting rod body part between the screw rod and the sieving assembly is arranged as a smooth rod. The sieving assembly includes a central cylinder and a sieving mesh plate fixed to the outer surface of the central cylinder. A plurality of diversion holes are formed on the surface of the part of the central cylinder between the sieving mesh plate and the end face of the pretreatment tank;

[0022] One end of the second transmission pipe passing through the pretreatment tank is arranged inside the central cylinder.

[0023] As a preferred embodiment of the integrated device for pure water hydrogen production, liquid hydrogen storage and hydrogen addition of the present invention, wherein: the left sealing member includes a left threaded cylinder and a left sealing plate connected to the surface of the left threaded cylinder. A plurality of telescopic rods are connected to the left sealing plate. A plurality of round holes are formed on the upper surface of the tee plate. The hole diameters and depths of the plurality of round holes are the same as the shortest height of the telescopic rods;

[0024] The right sealing member includes a right threaded cylinder. A plurality of skeletons are connected to the surface of the right threaded cylinder. The right threaded cylinder is connected with a right sealing plate through the plurality of skeletons. A plurality of long straight plates are connected to the right sealing plate. The plurality of long straight plates penetrate through the tee plate; the number of the right sealing plates is two groups. One group of the right sealing plates far from the tee plate is connected with the skeletons, and the other group of the right sealing plates is connected with the long straight plates. A plurality of elastic rods are connected between the two groups of the right sealing plates. One group of the right sealing plates far from the tee plate acts on the other group of the right sealing plates through the elastic rods so that the right sealing plate seals the second flow channel.

[0025] Advantages of the present invention: The present invention controls the flow path and speed of hydrogen according to the amount of hydrogen introduced. Effectively separates the droplets in hydrogen. The rotating structure and blocking structure of the first baffle and the displacement structure and flipping structure of the second baffle cooperate with each other, change the size of the channel for hydrogen flow according to the hydrogen flow rate and velocity, and at the same time undergo corresponding structural changes, prompting the hydrogen to flow in a bent manner, increasing the contact area between hydrogen and the surface of components, and effectively removing droplets by means of inertia, collision and adsorption. After being processed by multiple sets of baffle components and then finely filtered by the sieve component, the droplet residue is greatly reduced, and high-purity hydrogen is obtained, providing a stable and reliable guarantee for hydrogen storage and hydrogenation applications, and avoiding problems in subsequent hydrogen loading caused by poor hydrogen purity; Secondly, the screw, as the core driving element, synchronously drives the first baffle and the second baffle to accurately control the hydrogen flow rate to meet the requirements of hydrogen flow rate and velocity under different working conditions. Secondly, the special structural design of the pretreatment tank realizes the recycling of electrolyte resources, reduces production costs, reduces the demand for fresh electrolyte, and avoids environmental pollution that may be caused by the random discharge of electrolyte, meeting the concept of sustainable development. Description of the Drawings

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to these drawings. Among them:

[0027] Figure 1 Schematic diagram of the overall structure of the integrated device for pure water hydrogen production and liquid hydrogen storage and hydrogenation;

[0028] Figure 2 Schematic diagram of a partial structure of the integrated device for pure water hydrogen production and liquid hydrogen storage and hydrogenation;

[0029] Figure 3 Partial structure sectional view of the integrated device for pure water hydrogen production and liquid hydrogen storage and hydrogenation;

[0030] Figure 4 Partial structure sectional view of the integrated device for pure water hydrogen production and liquid hydrogen storage and hydrogenation;

[0031] Figure 5 Schematic diagram of the internal structure of the pretreatment tank in the present invention;

[0032] Figure 6 Structural detail diagram at the sieve component of the present invention;

[0033] Figure 7 Structural detail diagram at the baffle component of the present invention;

[0034] Figure 8 Schematic structural diagram of the first baffle in the present invention;

[0035] Figure 9 Schematic structural diagram of the drive plate in the present invention;

[0036] Figure 10 Front structural detail diagram of the tee component in the present invention;

[0037] Figure 11 Back structural detail diagram of the tee component in the present invention;

[0038] Figure 12 Overall structural schematic diagram of the baffle component in the present invention;

[0039] Figure 13 Schematic structural diagram of the second baffle in the present invention.

[0040] Reference numerals: 100, hydrogen production structure; 200, hydrogen storage and hydrogenation structure; 300, gas transmission pipeline; 310, first transmission pipeline; 320, second transmission pipeline; 400, pretreatment tank; 410, electrolyte recovery pipe; 420, limiting plate; 500, baffle component; 510, first baffle; 511, rotating structure; 5111, sleeve; 5112, triangular arc plate; 5113, drive plate; 5114, positioning pin; 512, blocking structure; 5121, circular through plate; 5122, arc-shaped groove; 5123, vertical plate; 5124, diversion port; 520, second baffle; 521, displacement structure; 5211, lining sleeve; 5212, retaining piece; 5213, limiting frame; 5214, towing rope; 522, flipping structure; 5221, connecting seat; 5222, flipping plate; 600, screw; 610, drive motor; 620, motor support plate; 700, screening component; 710, central cylinder; 720, screening mesh plate; 730, diversion hole; 800, tee component; 810, first flow channel; 820, second flow channel; 830, tee plate; 831, round hole; 840, left sealing member; 841, left threaded cylinder; 842, left sealing plate; 843, telescopic rod; 850, right sealing member; 851, right threaded cylinder; 852, skeleton; 853, right sealing plate; 854, long straight plate; 855, elastic rod. Detailed implementation manners

[0041] To make the above objects, features, and advantages of the present invention more obvious and understandable, the following detailed description of the specific implementation manners of the present invention is made in conjunction with the accompanying drawings of the specification.

[0042] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, the present invention may be practiced in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0043] Secondly, as used herein, "an embodiment" or "embodiments" refers to specific features, structures, or characteristics that may be included in at least one implementation of the present invention. The phrase "in an embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it an individual or alternative embodiment that is mutually exclusive with other embodiments.

[0044] Referring to Figures 1 - 13 As shown, the present invention provides an integrated device for pure water hydrogen production and liquid hydrogen storage and hydrogenation, including a hydrogen production structure 100 and a hydrogen storage and hydrogenation structure 200. The hydrogen production structure 100 is used to produce hydrogen;

[0045] The hydrogen storage and hydrogenation structure 200 is used to receive hydrogen and store it under pressure. A gas transmission pipeline 300 and a pretreatment tank 400 are provided between the hydrogen production structure 100 and the hydrogen storage and hydrogenation structure 200. The hydrogen production structure 100, the pretreatment tank 400, and the hydrogen storage and hydrogenation structure 200 are connected through the gas transmission pipeline 300. A working chamber is provided inside the pretreatment tank 400;

[0046] Among them, a plurality of sets of baffle components 500 adapted to the working chamber are arranged along the axial direction of the working chamber of the pretreatment tank 400. A screw 600 is provided between the plurality of sets of baffle components 500 and connected through the screw 600. Each set of baffle components 500 includes a first baffle member 510 and a second baffle member 520. The first baffle member 510 includes a rotating structure 511 and a blocking structure 512. The second baffle member 520 includes a displacement structure 521 and a flipping structure 522. The blocking structure 512 and the flipping structure 522 are fixed to the inner wall of the pretreatment tank 400. The rotating structure 511 and the displacement structure 521 are arranged on the surface of the screw 600. The rotating structure 511 is driven by the screw 600 to rotate to drive the blocking structure 512 to open or contract, so as to form a direct current channel or a slot channel for hydrogen to pass through. The displacement structure 521 is driven by the screw 600 to displace along the axial direction of the screw 600 to pull or squeeze the flipping structure 522, so as to drive the flipping structure 522 to flip along the axial direction of the screw 600, so as to form a notch or slit for hydrogen to pass through. The screw 600 drives the rotating structure 511 or the displacement structure 521 to change the size of the flow channel for hydrogen to flow through to regulate the hydrogen flow rate, and at the same time change the flow path of hydrogen to drive hydrogen to contact the first baffle member 510 and the second baffle member 520, so as to separate the electrolyte droplets in hydrogen.

[0047] The pitch sizes of the thread keyways provided on the thread segments where the screw rod 600 contacts multiple groups of baffle components 500 are different, and the different opening degrees of the baffle components 500 are adjusted based on different pitch ratio relationships.

[0048] Exemplarily, in the present invention, three groups of baffle components 500 are arranged in sequence from the reduced-diameter end to the enlarged-diameter end of the pretreatment tank 400. The three groups of baffle components 500 are all arranged in a threaded connection with the screw rod 600. And as the screw rod 600 rotates, the three groups of baffle components 500 move a certain distance along the axial direction of the pretreatment tank 400 on the surface of the screw rod 600. The pitch sizes of the rod body surfaces where the screw rod 600 contacts the three groups of baffle components 500 are arranged in proportion. Among them, the pitch of the rod body surface of the screw rod 600 close to the reduced-diameter end of the pretreatment tank 400: the pitch of the rod body surface of the screw rod 600 in the middle reduced-diameter end: the pitch of the rod body surface of the screw rod 600 far from the reduced-diameter end of the pretreatment tank 400 is 1:2:4.

[0049] The thread keyways with different pitches enable the screw rod 600 to drive the displacement structure 521 to move at different rates when rotating. In the part with a smaller pitch, when the screw rod 600 rotates by the same angle, the displacement amount of the displacement structure 521 is relatively small, so that a more refined regulation of the hydrogen gas flow rate and the flow path can be achieved. In the area with a larger pitch, when the screw rod 600 rotates rapidly, the displacement structure 521 can generate a larger amplitude of movement, quickly changing the size and path of the hydrogen gas flow channel to meet the requirements of hydrogen gas pretreatment under different working conditions.

[0050] As Figure 3 and Figure 4 shown, the gas transmission pipeline 300 includes a first transmission pipeline 310 and a second transmission pipeline 320. The first transmission pipeline 310 is used to connect the hydrogen production structure 100 and the pretreatment tank 400, and introduce the hydrogen gas in the hydrogen production structure 100 into the working cavity of the pretreatment tank 400. The second transmission pipeline 320 is used to connect the pretreatment tank 400 and the hydrogen storage and hydrogenation structure 200, and introduce the hydrogen gas in the working cavity of the pretreatment tank 400 into the hydrogen storage and hydrogenation structure 200;

[0051] The working cavity of the pretreatment tank 400 is arranged in a funnel shape. The first transmission pipeline 310 is connected to the enlarged-diameter end of the pretreatment tank 400, and a set of electrolyte recovery pipe 410 is communicated at the enlarged-diameter end of the pretreatment tank 400. One end of the electrolyte recovery pipe 410 passes through the hydrogen production structure 100 and is inserted into the electrolyte. The screw rod 600 passes through the end face of the pretreatment tank 400 far from the first transmission pipeline 310 and is connected with a driving motor 610. The second transmission pipeline 320 is connected to the reduced-diameter end of the pretreatment tank 400.

[0052] The outer surface of the pretreatment tank 400 is a tank structure with the same outer diameter up and down, and is horizontally arranged above the hydrogen production structure 100.

[0053] When the pretreatment tank 400 is placed horizontally, the inner wall of the pretreatment tank 400 is in an inclined slope shape. After the liquid at the necked end of the pretreatment tank 400 slides down along the inner wall of the pretreatment tank 400 to the flared end of the pretreatment tank 400, it is introduced into the hydrogen production structure 100 through the electrolyte recovery pipe 410 and merges with the original electrolyte in the hydrogen production structure 100 to participate in the reaction again.

[0054] A vibrator is installed on the outer wall of the pretreatment tank 400, and the vibration generated by the vibrator is used to increase the sliding speed and efficiency of the droplets, ensuring that more residual electrolyte can quickly flow from the necked end to the flared end of the pretreatment tank 400.

[0055] Specifically, the bottom of the driving motor 610 is supported by a motor support plate 620 fixed to the outer surface of the pretreatment tank 400. The motor support plate 620 is used to support the driving motor 610 and fix the position of the driving motor 610. The driving motor 610 is connected to a screw rod 600 and drives the screw rod 600 to rotate in the inner cavity of the pretreatment tank 400.

[0056] As Figure 5 shown, a sieving assembly 700 and a tee assembly 800 are respectively provided at both ends of the working chamber in the pretreatment tank 400. The tee assembly 800 is configured with a first flow channel 810 and a second flow channel 820 for hydrogen to flow through. The hydrogen transmitted through the first transmission pipe 310 passes through the first flow channel 810 or the second flow channel 820, and is deflected and separated by the first baffle 510 and the second baffle 520, and then flows to the sieving assembly 700 for secondary sieving and separation.

[0057] As Figure 10 and Figure 11 shown, the tee assembly 800 includes a tee plate 830, a left sealing member 840, and a right sealing member 850. A circular through hole is formed in the center of the tee plate 830 to form the first flow channel 810, and a plurality of rectangular through grooves are annularly penetrated through the surface of the tee plate 830 at equal intervals to form the second flow channel 820. The left sealing member 840 is used to seal the first flow channel 810, and the right sealing member 850 is used to seal the second flow channel 820;

[0058] Both the left sealing member 840 and the right sealing member 850 are threadedly connected to the screw rod 600, and the screw rod 600 drives the left sealing member 840 and the right sealing member 850 to perform synchronous and co-directional linear displacement.

[0059] As Figure 10 and Figure 11As shown, the left seal 840 includes a left threaded cylinder 841 and a left seal plate 842 connected to the surface of the left threaded cylinder 841. A plurality of telescopic rods 843 are connected to the left seal plate 842. A plurality of round holes 831 are formed in the upper surface of the three-way plate 830, and the aperture depth of the plurality of round holes 831 is the same as the shortest height of the telescopic rods 843;

[0060] The right seal 850 includes a right threaded cylinder 851. A plurality of skeletons 852 are connected to the surface of the right threaded cylinder 851. The right threaded cylinder 851 is connected to a right seal plate 853 through a plurality of skeletons 852. A plurality of long straight plates 854 are connected to the right seal plate 853, and the plurality of long straight plates 854 penetrate through the three-way plate 830; The number of the right seal plates 853 is two groups. One group of right seal plates 853 away from the three-way plate 830 is connected to the skeletons 852, and the other group of right seal plates 853 is connected to the long straight plates 854. A plurality of elastic rods 855 are connected between the two groups of right seal plates 853. One group of right seal plates 853 away from the three-way plate 830 acts on the other group of right seal plates 853 through the elastic rods 855, so that the right seal plates 853 seal the second flow channel 820.

[0061] As Figure 7 shown, a plurality of limiting plates 420 are also fixed on the inner wall of the pretreatment tank 400. The screw 600 drives the displacement structure 521 to linearly displace along the limiting plates 420. The displacement structure 521 includes a bushing 5211. A retaining piece 5212 and a limiting frame 5213 clamped in the limiting plates 420 are respectively fixed at both ends of the bushing 5211. A traction rope 5214 is connected to the side of the retaining piece 5212 facing away from the limiting frame 5213, and the retaining piece 5212 is connected to the flipping structure 522 through the traction rope 5214;

[0062] The screw 600 drives the retaining piece 5212 to move away from the flipping structure 522 through the bushing 5211 and the limiting frame 5213, so that the traction rope 5214 pulls the flipping structure 522 to deflect away from the driving motor 610. The screw 600 drives the retaining piece 5212 to move towards the flipping structure 522 through the bushing 5211 and the limiting frame 5213, so that the retaining piece 5212 abuts against the flipping structure 522, so that the flipping structure 522 deflects towards the driving motor 610.

[0063] As Figure 7 、 Figure 12 and Figure 13As shown, the number of flipping structures 522 in each group of baffle components 500 is four. The flipping structure 522 includes a connecting seat 5221 fixed to the inner wall of the pretreatment tank 400. A flipping plate 5222 is rotatably connected to the surface of the connecting seat 5221. The bottom of the flipping plate 5222 is semicircularly concave. A circular gap for hydrogen to pass through is formed at the center of the semicircular concavities of the four flipping plates 5222. The aperture of the circular gap is smaller than the diameter of the baffle 5212.

[0064] The four flipping plates 5222 are located in the same horizontal plane, and two adjacent flipping plates 5222 are in contact with each other. The four flipping plates 5222 form a sealing plate with a central through-hole.

[0065] Specifically, when the screw 600 rotates, the lining sleeve 5211 and the limiting frame 5213 threadedly connected to the surface of the screw 600 are displaced along the axis of the screw 600 under the restriction of the limiting plate 420 to drive the baffle 5212. The flipping plate 5222 is in a drooping state under the action of gravity. At this time, the towing rope 5214 is in a slack state. Multiple flipping plates 5222 droop naturally to form a circular hole, which is the circular gap mentioned above. Hydrogen passes through the limiting frame 5213, passes through the baffle 5212 and the flipping plate 5222, and enters the circular gap or the center of the first baffle member 510.

[0066] When the screw 600 rotates, the baffle 5212 moves towards the flipping plate 5222, and the distance between the baffle 5212 and the flipping plate 5222 decreases. Hydrogen flows through the slit between the baffle 5212 and the flipping plate 5222. As the baffle 5212 continues to move towards the flipping plate 5222, the distance between the baffle 5212 and the flipping plate 5222 continues to decrease until the baffle 5212 abuts against the flipping plate 5222. At this time, the baffle 5212 seals the circular gap between the flipping plates 5222. When hydrogen accumulates to a certain amount, it acts on the flipping plate 5222 to cause the flipping plate 5222 to deflect by itself, and hydrogen passes through the slit between the flipping plate 5222 and the baffle 5212; the baffle 5212 continues to move towards the flipping plate 5222, and the flipping plate 5222 rotates along the center of the connecting seat 5221 under the extrusion force, and the slit formed between the flipping plate 5222 and the baffle 5212 gradually increases with the displacement of the baffle 5212.

[0067] As Figure 8 and Figure 9As shown, the plugging structure 512 includes a circular through plate 5121 fixed to the inner wall of the pretreatment tank 400. The circular through plate 5121 is recessed to form a square through groove, and arc-shaped grooves 5122 are provided outward on the four sides of the square through groove. Vertical plates 5123 are inserted into the arc-shaped grooves 5122, and the rotating structure 511 opens and closes along the vertical plates 5123. The circular through plate 5121 is provided with a plurality of diversion openings 5124 at the positions of the arc-shaped grooves 5122, and the diversion openings 5124 form a slot channel for hydrogen to pass through.

[0068] As Figure 8 and Figure 9 shown, the rotating structure 511 includes a rotating unit and an opening and closing unit. The rotating unit includes a sleeve 5111 threadedly connected to the surface of the screw rod 600. The edge of the sleeve 5111 extends outward and is lengthened. The opening and closing unit includes four groups of triangular arc plates 5112. The four groups of vertical plates 5123 are inserted into the four groups of triangular arc plates 5112. A driving plate 5113 is connected between the triangular arc plates 5112 and the sleeve 5111. Two positioning pins 5114 are respectively nested at both ends of the driving plate 5113. One positioning pin 5114 is fixed to the surface of the triangular arc plate 5112, and the other positioning pin 5114 is fixed to the lengthened edge of the sleeve 5111.

[0069] Among them, the bottoms of the four groups of triangular arc plates 5112 are arc-shaped, and the channel formed by the four groups of triangular arc plates 5112 for hydrogen gas to flow through is a direct current channel.

[0070] The sieving assembly 700 is arranged in the reduced-diameter end of the working chamber and nests the screw rod 600. The connecting rod body part between the screw rod 600 and the sieving assembly 700 is arranged as a smooth rod. The sieving assembly 700 includes a central cylinder 710 and a sieving mesh plate 720 fixed to the outer surface of the central cylinder 710. A plurality of diversion holes 730 are formed on the partial surface of the central cylinder 710 between the sieving mesh plate 720 and the end face of the pretreatment tank 400;

[0071] The second transmission pipeline 320 penetrates through one end of the pretreatment tank 400 and is arranged in the central cylinder 710.

[0072] Working principle: When the electrolysis reaction of water occurs, the electrolyte will be stirred and splashed under the action of the electric field. When hydrogen is generated, it will inevitably entrain some electrolyte droplets, and these droplets will be transported out together with the hydrogen. The hydrogen with droplets is input into the flared end in the pretreatment tank 400 through the first transmission pipeline 310, passes through the first flow channel 810 or the second flow channel 820 of the three-way assembly 800 and enters the working area where multiple sets of baffle components 500 are located. The hydrogen with droplets moves under the guidance of the first baffle 510 and the second baffle 520. The droplets contained in the hydrogen are adsorbed on the surfaces of the first baffle 510 and the second baffle 520, and the hydrogen is preliminarily separated from the electrolyte. The droplets on the surfaces of the first baffle 510 and the second baffle 520 accumulate to form large particles and drip into the interior of the pretreatment tank 400 under the action of gravity. The droplets slide along the inner wall of the pretreatment tank 400 to the flared end of the pretreatment tank 400 under the action of gravity, and then are introduced into the cathode chamber of the electrolytic cell through the electrolyte recovery pipe 410, where they are fused with the original electrolyte in the cathode chamber and participate in the reaction again to realize the recycling of resources.

[0073] After the hydrogen passes through the working area where multiple sets of baffle components 500 are located, the sieving component 700 further filters out the trace electrolyte droplets carried in the hydrogen to improve the purity of the hydrogen.

[0074] The specific process is as follows: First, the three-way assembly 800 is the key inlet component for the hydrogen to enter the baffle area of the pretreatment tank 400 for gas-liquid separation.

[0075] When the amount of hydrogen entering through the first transmission pipeline 310 is relatively large and the flow rate of the hydrogen is relatively fast, the driving motor 610 drives the screw 600 to rotate in the reverse direction. Since both the left sealing member 840 and the right sealing member 850 are threadedly connected to the screw 600, the left sealing member 840 and the right sealing member 850 move synchronously and in the same direction towards the driving motor 610 under the drive of the screw 600, so that the left sealing member 840 slightly moves away from the three-way plate 830, while the right sealing member 850 presses on the three-way plate 830, and the elastic rod 855 is in a slightly compressed state. The hydrogen flows out through the first flow channel 810 to achieve the first gas-liquid separation of the hydrogen.

[0076] At this time, the baffle 5212 slightly moves away from the turning plate 5222. At this time, the turning plate 5222 is in a drooping state under the action of gravity. The hydrogen flows through the gap between the baffle 5212 and the turning plate 5222. When the hydrogen passes through the baffle 5212 and the turning plate 5222, it collides with the baffle 5212 and the turning plate 5222, and thus some of the electrolyte droplets in the hydrogen are adsorbed due to the collision, realizing the second gas-liquid separation of the hydrogen;

[0077] Since the sleeve 5111 is also threadedly connected to the surface of the screw rod 600, the sleeve 5111 rotates as the screw rod 600 rotates. The rotating sleeve 5111 acts on the driving plate 5113 to drive the four groups of triangular arc plates 5112 to move along the vertical plate 5123 in an opening and closing manner. At this time, the triangular arc plates 5112 are slightly closed together, but the extended edge of the sleeve 5111 blocks the DC channel opened and closed by the triangular arc plates 5112. Hydrogen flows along the triangular arc plates 5112, and some electrolyte droplets in the hydrogen are adsorbed due to collision. The hydrogen gas flows through the plurality of diversion ports 5124 of the circular through plate 5121, realizing the third aerosol separation of hydrogen. Since the channel through which the hydrogen flows is narrow during this process, the flow rate of the hydrogen can be controlled to control the speed and amount of hydrogen entering the second transmission pipeline 320, so that the hydrogen enters the second transmission pipeline 320 at a constant speed. At the same time, by the way of deflecting the hydrogen, the hydrogen can have a sufficient contact surface to adsorb the droplets;

[0078] As the hydrogen continues to flow, due to the slow flow rate and the preliminary droplet separation, the amount of droplets carried by the hydrogen is significantly reduced. Then it enters the sieving assembly 700. The sieving mesh plate 720 outside the central cylinder 710 finely filters the hydrogen to remove the remaining trace droplets, obtaining relatively pure hydrogen. Finally, it enters the hydrogen storage and hydrogenation structure 200 through the second transmission pipeline 320 for subsequent pressurized storage operation.

[0079] When the amount of hydrogen entering through the first transmission pipeline 310 is small and the flow rate of the hydrogen is relatively slow, the driving motor 610 drives the screw rod 600 to rotate forward. Since both the left sealing member 840 and the right sealing member 850 are threadedly connected to the screw rod 600, the left sealing member 840 and the right sealing member 850 move synchronously and in the same direction away from the driving motor 610 under the drive of the screw rod 600, causing the right sealing member 850 to slightly move away from the three-way plate 830, while the left sealing member 840 presses on the three-way plate 830, and the elastic rod 855 is in a natural elongation state. After the hydrogen flows out through the gap between the right sealing member 850 and the three-way plate 830, it flows out through the second flow channel 820. The number of the second flow channels 820 on the surface of the three-way plate 830 is multiple, and the channel area of the second flow channel 820 available for the hydrogen to flow through is much larger than the channel area of the first flow channel 810 available for the hydrogen to flow through; the hydrogen flows through the gap between the right sealing member 850 and the three-way plate 830 and intercepts the droplets of the hydrogen, realizing the first aerosol separation of the hydrogen.

[0080] At this time, the baffle 5212 moves slightly away from the flip plate 5222. A traction rope 5214 is connected to the side of the baffle 5212 facing away from the limit frame 5213. The flip plate 5222 is pulled to flip through the traction rope 5214, forming a relatively wide slit channel between the flip plate 5222 and the baffle 5212. Hydrogen passes through this slit channel at a relatively slow but stable speed. Since the flip plate 5222 is deflected at a certain angle, hydrogen enters the slit channel between the flip plate 5222 and the baffle 5212 along the flip plate 5222. Some electrolyte droplets adhere to the flip plate 5222 due to collision and adsorption, achieving the second aerosol separation of hydrogen.

[0081] Since the sleeve 5111 of the rotating unit is threadedly connected to the surface of the screw 600, as the screw 600 rotates forward, the sleeve 5111 rotates and drives the four triangular arc plates 5112 to open and close along the vertical plate 5123 through the driving plate 5113. At this time, the triangular arc plates 5112 open, forming a relatively wide DC channel. Hydrogen passes through this DC channel. Since the movement speed of hydrogen itself is relatively slow, the flip plate 5222 and the baffle 5212 can effectively intercept the droplets in hydrogen to ensure the effective separation of hydrogen.

[0082] As hydrogen continues to flow, after multiple steps of preliminary droplet separation in the previous steps, the amount of droplets carried by hydrogen is significantly reduced, and then it enters the sieving assembly 700. The sieving mesh plate 720 outside the central cylinder 710 of the sieving assembly 700 finely filters hydrogen, further removing the residual trace droplets in hydrogen, thereby obtaining relatively pure hydrogen. Finally, the pure hydrogen enters the hydrogen storage and hydrogenation structure 200 through the second transmission pipeline 320 for subsequent pressurized storage operations, providing a high-quality gas source guarantee for subsequent hydrogen applications, ensuring that the entire pure water hydrogen production and liquid hydrogen storage and hydrogenation integrated device can operate stably and efficiently, and meeting the requirements for hydrogen quality and supply under different working conditions.

[0083] The device demonstrates extremely strong electrolyte droplet separation ability, significantly improving the purity of hydrogen. Starting from the tee component 800, regardless of whether the hydrogen quantity is large or small, its unique structure and operation mode can conduct preliminary aerosol separation of hydrogen. When the hydrogen quantity is large, the coordinated movement of the left seal 840 and the right seal 850 enables hydrogen to flow out through specific gaps and impact the tee component 800, achieving preliminary interception of droplets. In the baffle component 500, the cooperation between the triangular arc plate 5112 and the circular through plate 5121 in the first baffle 510, and the cooperation between the baffle 5212 and the flip plate 5222 in the second baffle 520, can, under different hydrogen flow rates and velocities, greatly increase the contact area between hydrogen and the surfaces of various components by changing the hydrogen channels and making hydrogen flow in a bent manner, and the electrolyte droplets are effectively removed under the combined effects of inertia, collision, and adsorption. After being processed by multiple groups of baffle components 500, the amount of droplets carried by hydrogen is significantly reduced. After passing through the fine filtration of the sieve component 700, the residual trace droplets in hydrogen can be further removed, and finally high-purity hydrogen is obtained. This highly efficient purification effect provides a solid guarantee for the subsequent storage and application of hydrogen in the hydrogen storage and hydrogenation structure 200, ensuring the stability and reliability of hydrogen in various usage scenarios. For example, in applications such as fuel cells that have extremely high requirements for hydrogen purity, it can effectively avoid problems such as performance degradation or equipment damage caused by impurities.

[0084] Secondly, as the core driving element, the screw 600 realizes precise and flexible regulation of the hydrogen flow rate. When the hydrogen quantity entering the first transmission pipeline 310 is large, the screw 600 rotates reversely, driving the left seal 840 and the right seal 850 to move, adjusting the flow rate and velocity of hydrogen entering the flow channel of the tee component 800. At the same time, the triangular arc plates 5112 of the first baffle 510 slightly come together, making hydrogen flow in a narrow and specific channel, and precisely controlling the hydrogen velocity and quantity entering the second transmission pipeline 320 by restricting the hydrogen flow-through amount, enabling it to enter the subsequent links at a constant speed. When the hydrogen quantity is small, the screw 600 rotates forward, providing a wider flow channel for hydrogen to flow at a relatively slow but stable speed, which not only ensures the smooth transmission of hydrogen but also meets the requirements for hydrogen flow rate and velocity under different working conditions. This precise and flexible regulation ability enables the device to quickly respond when facing situations such as fluctuations in hydrogen production during the hydrogen production process, optimize the hydrogen transmission and processing process, improve the operating efficiency of the entire device, reduce energy waste, and can accurately adjust the input parameters of hydrogen according to the real-time state of the hydrogen storage and hydrogenation structure 200, such as hydrogen storage pressure, hydrogenation demand, etc., to ensure the stable and coordinated operation of the entire system.

[0085] The special structural design of the pretreatment tank 400 and the electrolyte recovery pipe 410 connected thereto constitute an efficient resource recovery system. During the hydrogen treatment process, large particles formed by the accumulation of electrolyte droplets dripping from the surfaces of the first baffle 510 and the second baffle 520 due to gravity will slide down along the inner wall of the pretreatment tank 400 to the flared end, and then be introduced into the hydrogen production structure 100 by the electrolyte recovery pipe 410 to fuse with the original electrolyte and participate in the reaction again. This process not only realizes the recycling of electrolyte resources, reduces production costs, and reduces the demand for fresh electrolyte, but also avoids the possible environmental pollution caused by the random discharge of electrolyte, which conforms to the concept of sustainable development. At the same time, the vibrator installed on the outer wall of the pretreatment tank 400 further improves the sliding speed and efficiency of the droplets, ensuring that more residual electrolyte can be recovered and further improving the resource recovery utilization rate.

[0086] Of course, the above content is only the preferred embodiment of the present invention and cannot be used to artificially limit the scope of the embodiments of the present invention. The present invention is not limited to the above examples. Equivalent changes and improvements made by those of ordinary skill in the art within the essence of the present invention shall fall within the scope covered by the patent of the present invention.

[0087] Finally, several points should be noted: First, in the description of the present application, it should be noted that unless otherwise specified and defined, the terms "installation", "connection", and "connection" should be understood in a broad sense, which can be mechanical connection or electrical connection, or the communication inside two components, and can be directly connected. "Up", "down", "left", "right", etc. are only used to represent the relative position relationship. When the absolute position of the object being described changes, the relative position relationship may change.

[0088] Second, in the drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments are involved. Other structures can refer to the general design. Without conflict, the same embodiment and different embodiments of the present invention can be combined with each other.

[0089] Finally: The above is only the preferred embodiment of the present invention and is not used to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An integrated device for hydrogen production from pure water and liquid hydrogen storage and hydrogenation, comprising a hydrogen production structure (100) and a hydrogen storage and hydrogenation structure (200), characterized in that: A gas transmission pipeline (300) and a pretreatment tank (400) are provided between the hydrogen production structure (100) and the hydrogen storage and hydrogenation structure (200). The hydrogen production structure (100), the pretreatment tank (400), and the hydrogen storage and hydrogenation structure (200) are connected through the gas transmission pipeline (300). A working chamber is provided inside the pretreatment tank (400); Among them, a plurality of baffle components (500) adapted to the working chamber are arranged along the axial direction of the working chamber of the pretreatment tank (400). A screw rod (600) is provided between the plurality of baffle components (500) and connected by the screw rod (600). Each group of baffle components (500) includes a first baffle member (510) and a second baffle member (520). The first baffle member (510) includes a rotating structure (511) and a blocking structure (512). The second baffle member (520) includes a displacement structure (521) and a flipping structure (522). The blocking structure (512) and the flipping structure (522) are fixed to the inner wall of the pretreatment tank (400). The rotating structure (511) and the displacement structure (521) are arranged on the surface of the screw rod (600). The rotating structure (511) is driven by the screw rod (600) to rotate to drive the blocking structure (512) to open or contract, so as to form a direct current channel or a slot channel for hydrogen to pass through. The displacement structure (521) is driven by the screw rod (600) to displace along the axial direction of the screw rod (600) to pull or squeeze the flipping structure (522), so as to drive the flipping structure (522) to flip along the axial direction of the screw rod (600), so as to form a notch or a slit for hydrogen to pass through. The screw rod (600) drives the rotating structure (511) or the displacement structure (521) to change the size of the flow channel for hydrogen to flow through to regulate the hydrogen flow rate, and at the same time change the flow path of the hydrogen to drive the hydrogen to contact the first baffle member (510) and the second baffle member (520), so as to separate the electrolyte droplets in the hydrogen.

2. The integrated device for pure water hydrogen production, liquid hydrogen storage and hydrogen addition according to claim 1, characterized in that: The gas transmission pipeline (300) includes a first transmission pipeline (310) and a second transmission pipeline (320). The first transmission pipeline (310) is used to connect the hydrogen production structure (100) and the pretreatment tank (400), and introduce the hydrogen in the hydrogen production structure (100) into the working chamber of the pretreatment tank (400). The second transmission pipeline (320) is used to connect the pretreatment tank (400) and the hydrogen storage and hydrogenation structure (200), and introduce the hydrogen in the working chamber of the pretreatment tank (400) into the hydrogen storage and hydrogenation structure (200); The working chamber of the pretreatment tank (400) is arranged in a funnel shape, the first transmission pipeline (310) is connected to the flared end of the pretreatment tank (400), and a group of electrolyte recovery pipes (410) are connected to the flared end of the pretreatment tank (400), the electrolyte recovery pipe (410) passes through one end of the hydrogen production structure (100) and is inserted into the electrolyte, the screw (600) passes through the end face of the pretreatment tank (400) away from the first transmission pipeline (310) and is connected to a driving motor (610), and the second transmission pipeline (320) is connected to the contracted end of the pretreatment tank (400).

3. The integrated device for pure water hydrogen production, liquid hydrogen storage and hydrogen addition according to claim 2, characterized in that: A screening assembly (700) and a three-way assembly (800) are respectively provided at both ends of the working chamber in the pretreatment tank (400). The three-way assembly (800) is configured with a first flow channel (810) and a second flow channel (820) for hydrogen to flow. The hydrogen transmitted via the first transmission pipeline (310) passes through the first flow channel (810) or the second flow channel (820), and is deflected and separated by the first deflector (510) and the second deflector (520), and flows to the screening assembly (700) for secondary screening and separation.

4. The integrated device for pure water hydrogen production, liquid hydrogen storage and hydrogen addition according to claim 3, wherein: The three-way assembly (800) comprises a three-way plate (830), a left-position sealing member (840) and a right-position sealing member (850); a circular through hole is provided at the center of the three-way plate (830) to form a first flow channel (810); a plurality of rectangular through grooves are circumferentially penetrated at equal intervals on the surface of the three-way plate (830) to form a second flow channel (820); the left-position sealing member (840) is used to seal the first flow channel (810), and the right-position sealing member (850) is used to seal the second flow channel (820); The left-side sealing member (840) and the right-side sealing member (850) are both threadedly connected to the screw rod (600), and the screw rod (600) drives the left-side sealing member (840) and the right-side sealing member (850) to synchronously and linearly displace in the same direction.

5. The integrated device for pure water hydrogen production, liquid hydrogen storage and hydrogen addition according to claim 4, characterized in that: A plurality of limit plates (420) are also fixed to the inner wall of the pretreatment tank (400); the screw rod (600) drives the displacement structure (521) to linearly displace along the limit plates (420); the displacement structure (521) comprises a bushing (5211); baffles (5212) and a limit frame (5213) engaged in the limit plates (420) are respectively fixed at two ends of the bushing (5211); a traction rope (5214) is connected to the side of the baffle (5212) away from the limit frame (5213); and the baffle (5212) is connected to the flip structure (522) via the traction rope (5214); The screw rod (600) drives the baffle (5212) to move away from the flipping structure (522) through the bushing sleeve (5211) and the limiting frame (5213), so that the traction rope (5214) pulls the flipping structure (522) to deflect away from the driving motor (610). The screw rod (600) drives the baffle (5212) to move towards the flipping structure (522) through the bushing sleeve (5211) and the limiting frame (5213), so that the baffle (5212) abuts against the flipping structure (522), and the flipping structure (522) deflects towards the driving motor (610).

6. The integrated device for pure water hydrogen production, liquid hydrogen storage and hydrogen addition according to claim 5, characterized in that: The number of flipping structures (522) in each group of baffle components (500) is four. The flipping structure (522) includes a connecting seat (5221) fixed to the inner wall of the pretreatment tank (400). A flipping plate (5222) is rotatably connected to the surface of the connecting seat (5221). The bottom of the flipping plate (5222) is concave in a semi-circular shape. A circular notch for hydrogen to pass through is formed at the center semi-circular concave part of the four flipping plates (5222). The aperture of the circular notch is smaller than the diameter of the baffle (5212). The four flipping plates (5222) are located in the same horizontal plane, and two adjacent flipping plates (5222) are in contact with each other. The four flipping plates (5222) form a sealing plate with a central through hole.

7. The integrated device for pure water hydrogen production and liquid hydrogen storage and hydrogenation according to claim 6, characterized in that: The sealing structure (512) includes a circular through plate (5121) fixed to the inner wall of the pretreatment tank (400). The circular through plate (5121) is concave to form a square through groove, and arc-shaped grooves (5122) are provided outward on the four sides of the square through groove. A vertical plate (5123) is inserted into the arc-shaped grooves (5122). The rotating structure (511) opens and closes along the vertical plate (5123). A plurality of diversion openings (5124) are formed in the circular through plate (5121) at the position of the arc-shaped grooves (5122).

8. The integrated device for pure water hydrogen production, liquid hydrogen storage and hydrogen addition according to claim 7, wherein: The rotating structure (511) includes a rotating unit and a opening and closing unit. The rotating unit includes a sleeve (5111) threadedly connected to the surface of the screw rod (600). The edge of the sleeve (5111) extends outward and is lengthened. The opening and closing unit includes four triangular arc plates (5112). The four vertical plates (5123) are inserted into the four triangular arc plates (5112). A driving plate (5113) is connected between the triangular arc plates (5112) and the sleeve (5111). Two positioning pins (5114) are respectively nested at both ends of the driving plate (5113). One positioning pin (5114) is fixed to the surface of the triangular arc plate (5112), and the other positioning pin (5114) is fixed to the lengthened edge of the sleeve (5111).

9. The integrated device for pure water hydrogen production, liquid hydrogen storage and hydrogen addition according to claim 8, wherein: The sieving assembly (700) is arranged inside the necking end of the working chamber and nests the screw rod (600). The connecting rod body part between the screw rod (600) and the sieving assembly (700) is arranged as a smooth rod. The sieving assembly (700) includes a central cylinder (710) and a sieving mesh plate (720) fixed on the outer surface of the central cylinder (710). A plurality of diversion holes (730) are formed on a part of the surface of the central cylinder (710) located between the sieving mesh plate (720) and the end face of the pretreatment tank (400). The second transfer pipeline (320) penetrates through one end of the pretreatment tank (400) and is arranged inside the central cylinder (710).

10. The integrated device for pure water hydrogen production and liquid hydrogen storage and hydrogenation as claimed in claim 9, wherein: The left sealing member (840) includes a left threaded cylinder (841) and a left sealing plate (842) connected to the surface of the left threaded cylinder (841). A plurality of telescopic rods (843) are connected to the left sealing plate (842). A plurality of circular holes (831) are formed on the upper surface of the tee plate (830). The aperture depth of the plurality of circular holes (831) is the same as the shortest height of the telescopic rods (843). The right sealing member (850) includes a right threaded cylinder (851). A plurality of skeletons (852) are connected to the surface of the right threaded cylinder (851). The right threaded cylinder (851) is connected to a right sealing plate (853) through the plurality of skeletons (852). A plurality of long straight plates (854) are connected to the right sealing plate (853). The plurality of long straight plates (854) penetrate through the tee plate (830). The number of the right sealing plates (853) is two groups. One group of the right sealing plates (853) away from the tee plate (830) is connected to the skeletons (852), and the other group of the right sealing plates (853) is connected to the long straight plates (854). A plurality of elastic rods (855) are connected between the two groups of the right sealing plates (853). One group of the right sealing plates (853) away from the tee plate (830) acts on the other group of the right sealing plates (853) through the elastic rods (855) so that the right sealing plate (853) seals the second flow channel (820).

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