A high-purity hydrogen purifier and its purification method

Abstract

The present invention relates to a high-purity hydrogen purifier and a purification method in the technical field of hydrogen purification, including a deoxidation tank. An inner cylinder is installed at the middle position of the deoxidation tank, and the inner cylinder is integrally composed of a round tube, a connecting tube, and a square tube from top to bottom. A heater is installed at the top of the round tube, and a heating tube inserted into the square tube is arranged at the bottom of the heater. Installation holes are arranged on both sides of the round tube, and an intake pipe is fixed to the inner wall of the installation hole. Air inlet holes are formed on both sides of the intake pipe, and the air inlet holes are designed to be elliptical. A gas blocking assembly for opening and closing the air inlet holes is arranged inside the intake pipe. In the present invention, hydrogen forms a complex turbulent flow path in the square tube, ensuring that the hydrogen can be fully heated, and driving the hydrogen to form a spiral flow path in the deoxidation tank. With the turbulent flow effect of the inner annular seat and the outer annular seat, the flow path of the hydrogen is further changed, enabling the hydrogen to come into more sufficient contact with the deoxidation catalyst and improving the deoxidation efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of hydrogen purification, and particularly relates to a high-purity hydrogen purifier and a purification method thereof. Background Art

[0002] Hydrogen purification is the process of removing impurities and contaminants from hydrogen to produce a high-purity, high-quality product. Hydrogen can be contaminated by a variety of impurities, including water vapor, carbon monoxide, and other gases. The hydrogen purification process involves using specialized equipment and technologies to remove these impurities to produce hydrogen that meets the required purity standards. In the existing hydrogen purification process, a deoxidizer is needed to purify the raw hydrogen. The raw hydrogen is introduced into the deoxidizer, and the raw hydrogen reacts with the deoxidation catalyst with the heat of the heat pipe. In the initial stage of using the existing deoxidizer, due to insufficient air pressure, heat cannot be carried away, resulting in dry burning of the inner cylinder.

[0003] To solve the problem of dry burning, a certain hydrogen purification device in the market adopts the design of first introducing a small amount of hydrogen and has a certain market share.

[0004] After retrieval, the invention patent with the authorized announcement number of Chinese Patent CN113753858B discloses a hydrogen purification method and its device. Its structure includes: an outer cylinder for defining the main body of the device, an inner cylinder nested inside the outer cylinder. The outer cylinder also includes a partition plate. The catalytic reaction layer is arranged in the area above the partition plate. A heat pipe for heating is arranged inside the inner cylinder. An outlet is arranged on the side of the inner cylinder and a pipe sealing plate is fixed. An air inlet pipe for air intake is arranged on the pipe sealing plate. A gas blocking component is arranged inside the connection part of the air inlet pipe and the inner cylinder. The gas blocking component includes a swelling and pushing component fixed at the lower end of the pipe sealing plate and a baffle plate fixed at the upper end of the swelling and pushing component. In the present invention, the heat pipe is first turned on for a period of time. After the air pressure of the hydrogen from the previous-stage equipment is sufficient, hydrogen is introduced into the deoxidizer. Through the gap of the baffle plate, only a small amount of hydrogen can enter the inner cylinder. At this time, hydrogen can not only carry heat into the catalytic reaction, but also make the hydrogen gas flow carry away the heat of the heat pipe, preventing the heat pipe with gradually increasing temperature from being damaged by dry burning.

[0005] Based on the above retrieval and combined with the existing technology, it is found that the existing hydrogen purification device adopts the method of first introducing a small amount of hydrogen to solve the problem of dry burning. However, in the process of hydrogen purification, due to factors such as unstable feed gas flow rate and system pressure change, and there is no good flow disturbance component inside the inner cylinder. When the gas flows normally, due to its fast flow rate, it cannot ensure that all the hydrogen entering the inner cylinder can be heated. Moreover, when the gas flow rate increases, its flow rate will be faster, and it is even more impossible to ensure that the hydrogen is completely heated. Therefore, a high-purity hydrogen purifier and a purification method thereof are proposed to improve the above problems. Summary of the Invention

[0006] In view of the above-mentioned prior art, the technical problem to be solved by the present invention is that it is impossible to ensure that all the hydrogen gas entering the inner cylinder can be heated.

[0007] To solve the above problems, the present invention provides a high-purity hydrogen purifier, including a deoxidation tank. An inner cylinder is installed at the middle position of the deoxidation tank, and the inner cylinder is integrally composed of a round tube, a connecting tube, and a square tube from top to bottom. A heater is installed at the top of the round tube, and a heating tube inserted into the square tube is arranged at the bottom of the heater. Installation holes are arranged on both sides of the round tube, and air inlet pipes are fixed to the inner walls of the installation holes. Air inlet holes are opened on both sides of the air inlet pipe, and the air inlet holes are designed to be elliptical. A gas blocking component for opening and closing the air inlet holes is arranged inside the air inlet pipe. A first flow disturbing component is arranged between the bottom of the gas blocking component and the inside of the square tube;

[0008] The first flow disturbing component includes a limiting groove opened on one side of the bottom of the air inlet pipe, and a movable plate passing through the limiting groove is arranged at the bottom of the gas blocking component. Vertically arranged flow disturbing flat plates are rotatably connected to both sides of the inner wall of the square tube, and the positions of adjacent two flow disturbing flat plates intersect. First clamping grooves are opened at the middle positions of the bottoms of the flow disturbing flat plates, and missing gears are fixed to the inner wall tops of the first clamping grooves. Multiple U-shaped sliding rails are fixed to the middle positions of the inner walls at both ends of the square tube, and sliders are slidably arranged on the inner walls of the U-shaped sliding rails. The same lifting frame is fixed between the sliders. Multiple rows of equally spaced tooth grooves are opened on both sides of the lifting frame, and the tooth grooves are meshed with the missing gears. A lifting seat is fixed to the top of the lifting frame, and connecting grooves for the movable plate to move are opened on both the lifting seat and the lifting frame. Oblique grooves are opened on both sides of the lifting seat, and driving wheels slidably arranged in the oblique grooves are rotatably connected to both sides of the movable plate;

[0009] A second flow disturbing component is arranged between the inside of the deoxidation tank and the outside of the inner cylinder.

[0010] The present invention is further arranged such that the gas blocking component includes a piston that fits on the inner wall of the air inlet pipe to adjust the aperture of the air inlet hole, and a movable disc is fixed to one end of the piston. A guiding hole is opened at one end of the air inlet pipe, and a movable column passing through the guiding hole is fixed to one end of the movable disc. A spring is installed between the outer wall of one end of the movable disc and the inner wall of one end of the air inlet pipe, and the spring is sleeved on the movable column. The cross-section of the movable column is designed to be T-shaped, and the bottom of one end of the movable disc is fixed to one end of the movable plate.

[0011] The present invention is further arranged such that second clamping grooves are opened on both sides of the bottom of the flow disturbing flat plate, and the positions of the second clamping grooves correspond to the positions of the heating tubes, and the positions of the first clamping grooves correspond to the positions of the lifting frame.

[0012] The present invention is further arranged such that a flow equalizing frame is installed at the bottom of the inner wall of the square tube, and the flow equalizing frame is designed to be a hollow quadrangular frustum shape, and a plurality of flow dividing holes are opened on the surface of the flow equalizing frame.

[0013] The present invention is further configured such that a feed pipe is fixed to one side of the deoxidation tank near the top, and a discharge pipe is fixed to the middle of the bottom of the deoxidation tank. Valves are installed at the bottom end of the discharge pipe and one end of the feed pipe. The interior of the deoxidation tank is filled with a deoxidation catalyst.

[0014] The present invention is further configured such that the second flow disturbing assembly includes a partition plate fixed to the top of the inner wall of the deoxidation tank and the bottom of the outer wall of the circular pipe. A bearing sleeve is installed at the bottom of the partition plate, a gear ring is installed on the inner wall of the bearing sleeve, a driving gear is meshed with the inner wall of the gear ring, and a driver for driving the driving gear to rotate is installed on the top of the deoxidation tank. A plurality of rotating columns are installed at the bottom of the gear ring, and a same spiral flow disturbing plate is installed at the bottom of the rotating columns. The spiral flow disturbing plate is located at the middle position of the gap between the inner wall of the deoxidation tank and the outer wall of the square pipe.

[0015] The present invention is further configured such that inner annular seats are installed on the outer wall of the square pipe at equidistant intervals, and outer annular seats are installed on the inner wall of the deoxidation tank at equidistant intervals. The positions of the outer annular seats correspond to the positions of the inner annular seats. The spiral flow disturbing plate passes through the gap between the inner annular seats and the outer annular seats, and the outer walls of the inner annular seats and the inner walls of the outer annular seats are both designed in a pointed V shape.

[0016] The present invention is further configured such that an air outlet pipe is fixed to the other side of the deoxidation tank near the top, and the position of the air outlet pipe is higher than the top surface of the deoxidation catalyst. A filtering assembly is provided at one end of the air outlet pipe.

[0017] The present invention is further configured such that the filtering assembly includes a filter net installed at one end of the air outlet pipe, and the filter net is designed in an arc shape. A cleaning scraper is installed on one side of the spiral flow disturbing plate, and the cleaning scraper is in contact with the filter net.

[0018] A method for purifying high-purity hydrogen, which is applied to a high-purity hydrogen purifier, includes the following steps:

[0019] Step 1: Fill the deoxidation catalyst into the gap between the inner wall of the deoxidation tank and the outer wall of the inner cylinder through the feed pipe;

[0020] Step 2: The hydrogen to be purified is introduced through the inlet pipe. A gas blocking assembly is provided at the elliptical inlet holes on both sides of the inlet pipe, and its piston can adjust the aperture of the inlet holes. When hydrogen enters, the pressure change will cause the piston to move and change the size of the inlet holes;

[0021] Step 3: When the piston moves, the first flow disturbing component starts to function, causing the movable plate to move along with the air blocking component. The lifting seat and the lifting frame move up and down through the cooperation of the driving wheel and the inclined groove, and the flow disturbing flat plate rotates under the meshing action of the tooth grooves and the missing gear. The greater the intake air flow, the greater the rotation amplitude of the flow disturbing flat plate, which makes the hydrogen form a complex flow disturbing path in the square tube. Finally, the hydrogen is ejected through the diversion holes on the surface of the flow equalizing frame and comes into full contact with the deoxidation catalyst for the deoxidation reaction;

[0022] Step 4: During the process of Step 3, the second flow disturbing component is started synchronously. The driver drives the driving gear to rotate, and then the gear ring rotates. The spiral flow disturbing plate installed at the bottom of the gear ring rotates accordingly. The spiral flow disturbing plate pushes the hydrogen to form a spiral flow path in the deoxidation tank, and also agitates the deoxidation catalyst. With the cooperation of the flow disturbing effects of the inner annular seat and the outer annular seat, the hydrogen comes into full contact with the deoxidation catalyst in the tank, improving the deoxidation efficiency;

[0023] Step 5: The deoxygenated hydrogen continues to rise and reaches the position of the air outlet pipe. The hydrogen is filtered through the filter screen installed at one end of the air outlet pipe to remove the fragmented deoxidation catalyst carried by it. And when the spiral flow disturbing plate rotates, it drives the cleaning scraper to scrape and clean the filter screen to prevent the filter screen from being blocked. The filtered high-purity hydrogen is discharged through the air outlet pipe;

[0024] Step 6: When the deoxidation catalyst needs to be replaced, the valve is opened. The driver drives the spiral flow disturbing plate to rotate, pushing the deoxidation catalyst downward to quickly discharge it.

[0025] In summary, after adopting the above structure, compared with the prior art, the present invention has the following advantages:

[0026] 1. In the present invention, through the arranged air blocking component, at the initial stage of hydrogen introduction, a small amount of hydrogen can enter the inner cylinder along the small opening of the air inlet hole. This part of hydrogen can not only carry heat for the catalytic deoxidation reaction, but also take away the heat of the inner cylinder, preventing the problem of dry burning of the inner cylinder caused by the gradual increase in temperature. Its structure is simpler and the working process is more convenient. It can adjust the aperture of the air inlet hole according to the pressure change when hydrogen enters, realizing the control of the intake air flow. At the same time, the movement of the air blocking component will drive the first flow disturbing component to work, making the flow disturbing flat plate rotate, and the greater the intake air flow, the greater the rotation amplitude, making the hydrogen form a complex flow disturbing path in the square tube, ensuring that the hydrogen can be fully heated and improving the effect and efficiency of the deoxidation reaction.

[0027] 2. In the present invention, in the second spoiler assembly, the driver drives the drive gear to rotate, causing the toothed ring to rotate, and then making the spiral spoiler rotate, promoting the formation of a spiral flow path of hydrogen in the deoxidation tank. Together with the spoiler effect of the inner annular seat and the outer annular seat, the flow path of hydrogen is further changed. This not only enables hydrogen to come into fuller contact with the deoxidation catalyst but also agitates the deoxidation catalyst, further enhancing the deoxidation efficiency.

[0028] 3. In the present invention, the flow equalizing frame provided at the bottom of the inner wall of the square tube, which is designed as a hollow quadrangular frustum and has a plurality of diversion holes on its surface, can make the hydrogen flowing out of the square tube spray out more uniformly, come into fuller contact with the deoxidation catalyst, and improve the uniformity and effect of the reaction.

[0029] 4. In the present invention, the filter screen provided at one end of the outlet pipe can effectively filter the fragmented deoxidation catalyst carried in the deoxidized hydrogen, ensuring the purity of the output hydrogen. At the same time, when the spiral spoiler rotates, it can drive the cleaning scraper to scrape and clean the filter screen, preventing the filter screen from being blocked and ensuring the filtering effect and the normal operation of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 is a three-dimensional structural schematic diagram of a high-purity hydrogen purifier according to the present invention;

[0031] Figure 2 is a three-dimensional sectional view of a high-purity hydrogen purifier according to the present invention;

[0032] Figure 3 is a front view of the deoxidation tank and the inner cylinder of a high-purity hydrogen purifier according to the present invention;

[0033] Figure 4 is a structural schematic diagram of the inner annular seat of a high-purity hydrogen purifier according to the present invention;

[0034] Figure 5 is a structural schematic diagram of the second spoiler assembly of a high-purity hydrogen purifier according to the present invention;

[0035] Figure 6 is a front sectional view of the inner cylinder of a high-purity hydrogen purifier according to the present invention;

[0036] Figure 7 is a side sectional view of the inner cylinder of a high-purity hydrogen purifier according to the present invention;

[0037] Figure 8 is a structural schematic diagram of the tooth grooves and sliders of a high-purity hydrogen purifier according to the present invention;

[0038] Figure 9 is a structural schematic diagram of the inclined grooves and connecting grooves of a high-purity hydrogen purifier according to the present invention;

[0039] Figure 10Schematic diagram of the flow equalizing frame structure of a high-purity hydrogen purifier according to the present invention;

[0040] Figure 11 Schematic diagram of the gas blocking component structure of a high-purity hydrogen purifier according to the present invention;

[0041] Figure 12 Cross-sectional view of the inlet pipe of a high-purity hydrogen purifier according to the present invention;

[0042] Figure 13 Schematic diagram of the flow disturbing plate and the missing gear structure of a high-purity hydrogen purifier according to the present invention.

[0043] Description of the reference numerals in the figure:

[0044] 1. Deoxidation tank; 2. Feed pipe; 3. Second flow disturbing component; 301. Driver; 302. Bearing sleeve; 303. Ring gear; 304. Rotating column; 305. Spiral flow disturbing plate; 306. Driving gear; 4. Inner cylinder; 401. Round pipe; 402. Connecting pipe; 403. Square pipe; 5. Heater; 6. Inlet pipe; 7. Outlet pipe; 8. Valve; 9. First flow disturbing component; 901. U-shaped slide rail; 902. Flow disturbing plate; 903. Lifting frame; 904. Lifting seat; 905. Movable plate; 906. Tooth groove; 907. Slide block; 908. Inclined groove; 909. Connecting groove; 910. Driving wheel; 911. Limiting groove; 912. Missing gear; 913. First clamping groove; 914. Second clamping groove; 10. Inner annular seat; 11. Gas blocking component; 1101. Piston; 1102. Movable disc; 1103. Spring; 1104. Movable column; 12. Partition plate; 13. Filter screen; 14. Cleaning scraper; 15. Outer annular seat; 16. Deoxidation catalyst; 17. Flow equalizing frame; 18. Air inlet hole; 19. Heating pipe. Detailed implementation manners

[0045] The following describes in detail the embodiments of the present application. The examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the present application and should not be construed as a limitation to the present application.

[0046] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0047] In the description of the present application, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", "linkage", and "setting" should be understood in a broad sense. For example, it can be fixedly connected and set, or detachably connected and set, or integrally connected and set. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0048] Referring to Figures 1-13 , the present invention provides a high-purity hydrogen purifier, which includes a deoxidation tank 1. An inner cylinder 4 is installed at the middle position of the deoxidation tank 1, and the inner cylinder 4 is integrally composed of a round tube 401, a connecting tube 402, and a square tube 403 from top to bottom. A heater 5 is installed at the top of the round tube 401. A heating tube 19 inserted into the square tube 403 is arranged at the bottom of the heater 5. Installation holes are arranged on both sides of the round tube 401, and an intake pipe 6 is fixed to the inner wall of the installation hole. Air inlet holes 18 are formed on both sides of the intake pipe 6. The air inlet holes 18 are designed in an elliptical shape. A gas blocking assembly 11 for opening and closing the air inlet holes 18 is arranged inside the intake pipe 6. A first flow disturbing assembly 9 is arranged between the bottom of the gas blocking assembly 11 and the inside of the square tube 403;

[0049] The first spoiler assembly 9 includes a limiting groove 911 formed on one side of the bottom of the intake pipe 6, and a movable plate 905 passing through the limiting groove 911 is provided at the bottom of the air blocking assembly 11. The air blocking assembly 11 includes a piston 1101 that fits against the inner wall of the intake pipe 6 to adjust the aperture of the air inlet hole 18. The piston 1101 does not completely close the air inlet hole 18, leaving a small opening in the air inlet hole 18. One end of the piston 1101 is fixed with a movable disc 1102. A guiding hole is formed at one end of the intake pipe 6. One end of the movable disc 1102 is fixed with a movable column 1104 passing through the guiding hole. A spring 1103 is installed between the outer wall of one end of the movable disc 1102 and the inner wall of one end of the intake pipe 6, and the spring 1103 is sleeved on the movable column 1104. The cross-section of the movable column 1104 is designed in a T shape. One end of the bottom of the movable disc 1102 is fixed to one end of the movable plate 905. Turbulence flat plates 902 in a vertical state are rotatably connected to both sides of the inner wall of the square pipe 403, and the positions of adjacent two turbulence flat plates 902 intersect. A first clamping groove 913 is formed in the middle of the bottom of each turbulence flat plate 902, and an incomplete gear 912 is fixed to the top of the inner wall of each first clamping groove 913. A plurality of U-shaped sliding rails 901 are fixed to the middle of the inner walls of both ends of the square pipe 403, and sliders 907 are slidably arranged on the inner walls of the U-shaped sliding rails 901. The same lifting frame 903 is fixed between the sliders 907. A plurality of rows of equally spaced tooth grooves 906 are formed on both sides of the lifting frame 903, and the tooth grooves 906 are engaged with the incomplete gears 912. Second clamping grooves 914 are formed on both sides of the bottom of each turbulence flat plate 902, and the positions of the second clamping grooves 914 correspond to the positions of the heating pipes 19. The positions of the first clamping grooves 913 correspond to the positions of the lifting frame 903. A lifting seat 904 is fixed to the top of the lifting frame 903, and connecting grooves 909 for the movable plate 905 to move are formed on both the lifting seat 904 and the lifting frame 903. Oblique grooves 908 are formed on both sides of the lifting seat 904, and driving wheels 910 that are rotatably connected to both sides of the movable plate 905 and slide in the oblique grooves 908 are provided. The movement of the air blocking assembly 11 drives the first spoiler assembly 9 to work, causing the turbulence flat plates 902 to rotate, and the greater the intake air flow rate, the greater the rotation amplitude, so as to form a complex turbulent flow path of hydrogen in the square pipe 403, ensuring that the hydrogen can be fully heated and improving the effect and efficiency of the deoxidation reaction;

[0050] A second flow disturbing component 3 is arranged inside the deoxidation tank 1 and outside the inner cylinder 4. The second flow disturbing component 3 includes a partition plate 12 fixed to the top of the inner wall of the deoxidation tank 1 and the bottom of the outer wall of the round tube 401. A bearing sleeve 302 is installed at the bottom of the partition plate 12. A gear ring 303 is installed on the inner wall of the bearing sleeve 302. A driving gear 306 is engaged with the inner wall of the gear ring 303. A driver 301 for driving the driving gear 306 to rotate is installed at the top of the deoxidation tank 1. A plurality of rotating columns 304 are installed at the bottom of the gear ring 303. The same spiral flow disturbing plate 305 is installed at the bottom of the rotating column 304. The spiral flow disturbing plate 305 is located at the middle position of the gap between the inner wall of the deoxidation tank 1 and the outer wall of the square tube 403. Inner annular seats 10 are installed on the outer wall of the square tube 403 at equal intervals. Outer annular seats 15 are installed on the inner wall of the deoxidation tank 1 at equal intervals. The positions of the outer annular seats 15 correspond to the positions of the inner annular seats 10. The spiral flow disturbing plate 305 passes through the gap between the inner annular seats 10 and the outer annular seats 15. The outer walls of the inner annular seats 10 and the inner walls of the outer annular seats 15 are both designed into a pointed V shape, as Figure 2 , Figure 4 and Figure 5 shown. The second flow disturbing component 3 is used to push the hydrogen to form a spiral flow path in the deoxidation tank 1. With the flow disturbing effect of the inner annular seats 10 and the outer annular seats 15, the flow path of the hydrogen is further changed. This can not only make the hydrogen contact the deoxidation catalyst 16 more fully, but also agitate the deoxidation catalyst 16, further improving the deoxidation efficiency.

[0051] Specifically, a flow equalizing frame 17 is installed at the bottom of the inner wall of the square tube 403. The flow equalizing frame 17 is designed into a hollow quadrangular frustum shape. A plurality of flow dividing holes are formed on the surface of the flow equalizing frame 17, as Figure 2 , Figure 4 , Figure 6 , Figure 7 and Figure 10 shown. The hydrogen is fully divided through the flow dividing holes on the surface of the flow equalizing frame 17, so that it can contact the deoxidation catalyst 16 fully.

[0052] Specifically, a feed pipe 2 is fixed to one side of the deoxidation tank 1 near the top. A discharge pipe is fixed at the middle of the bottom of the deoxidation tank 1. Valves 8 are installed at the bottom ends of the discharge pipe and one end of the feed pipe 2. The inside of the deoxidation tank 1 is filled with a deoxidation catalyst 16, as Figure 3 shown, which is convenient for adding and removing the deoxidation catalyst 16.

[0053] Specifically, an air outlet pipe 7 is fixed to the other side of the deoxidation tank 1 near the top. The position of the air outlet pipe 7 is higher than the top surface of the deoxidation catalyst 16. A filtering component is arranged at one end of the air outlet pipe 7. The filtering component includes a filter net 13 installed at one end of the air outlet pipe 7. The filter net 13 is designed into an arc shape. A cleaning scraper 14 is installed on one side of the spiral flow disturbing plate 305. The cleaning scraper 14 is attached to the filter net 13, asFigure 2 , Figure 3 and Figure 5 As shown in Figure 2 , Figure 3 and Figure 5 , hydrogen is filtered through the filter screen 13 to remove the fragmented deoxidation catalyst 16 it carries. When the spiral spoiler 305 rotates, it drives the cleaning scraper 14 to scrape and clean the filter screen 13 to prevent the filter screen 13 from being blocked.

[0054] A high-purity hydrogen purification method is applied to a high-purity hydrogen purifier, and includes the following steps:

[0055] Step 1: Fill the deoxidation catalyst 16 into the gap between the inner wall of the deoxidation tank 1 and the outer wall of the inner cylinder 4 through the feed pipe 2;

[0056] Step 2: The hydrogen to be purified is introduced through the intake pipe 6. The air-blocking components 11 are provided at the elliptical intake holes 18 on both sides of the intake pipe 6, and its piston 1101 can adjust the aperture of the intake hole 18. When hydrogen enters, the pressure change will cause the piston 1101 to move, changing the size of the intake hole 18;

[0057] Step 3: When the piston 1101 moves, the first spoiler assembly 9 starts to function, causing the movable plate 905 to move with the air-blocking component 11. Through the cooperation of the driving wheel 910 and the inclined groove 908, the lifting seat 904 and the lifting frame 903 move up and down, and under the meshing action of the tooth groove 906 and the missing gear 912, the spoiler flat plate 902 rotates. The greater the intake flow rate, the greater the rotation amplitude of the spoiler flat plate 902. This makes the hydrogen form a complex turbulent flow path in the square pipe 403. Finally, the hydrogen is ejected through the diversion holes on the surface of the flow equalizing frame 17 and comes into full contact with the deoxidation catalyst 16 for deoxidation reaction;

[0058] Step 4: During the process of Step 3, the second spoiler assembly 3 is started synchronously. The driver 301 drives the driving gear 306 to rotate, and then the gear ring 303 rotates. The spiral spoiler 305 installed at the bottom of the gear ring 303 rotates accordingly. The spiral spoiler 305 pushes the hydrogen to form a spiral flow path in the deoxidation tank 1, and also agitates the deoxidation catalyst 16, and cooperates with the spoiler action of the inner annular seat 10 and the outer annular seat 15, so that the hydrogen is in full contact with the deoxidation catalyst 16 in the tank, improving the deoxidation efficiency;

[0059] Step 5: The deoxidized hydrogen continues to rise to the position of the outlet pipe 7. The hydrogen is filtered through the filter screen 13 installed at one end of the outlet pipe 7 to remove the fragmented deoxidation catalyst 16 it carries. When the spiral spoiler 305 rotates, it drives the cleaning scraper 14 to scrape and clean the filter screen 13 to prevent the filter screen 13 from being blocked. The filtered high-purity hydrogen is discharged through the outlet pipe 7;

[0060] Step 6: When the deoxidation catalyst 16 needs to be replaced, open the valve 8, drive the spiral spoiler 305 to rotate through the driver 301, and push the deoxidation catalyst 16 downward to quickly discharge it.

[0061] In summary, the working principle of the present invention: The deoxidation catalyst 16 is filled into the gap between the inner wall of the deoxidation tank 1 and the outer wall of the inner cylinder 4 through the feed pipe 2 to provide reaction substances for subsequent deoxidation reactions;

[0062] The hydrogen to be purified is introduced through the inlet pipe 6. Since the air blocking components 11 are provided at the elliptical air inlet holes 18 on both sides of the inlet pipe 6, at the initial stage of hydrogen entry, the hydrogen flow rate is small and the flow velocity is slow. At this time, this small part of hydrogen will enter the inner cylinder 4 along the small openings of the air inlet holes 18, carry the heat in the inner cylinder 4 to carry out catalytic deoxidation reactions, and prevent the inner cylinder 4 from dry burning. When the hydrogen flow rate gradually becomes normal, the air blocking component 11 will cause the piston 1101 to move under the action of pressure, drive the spring 1103 to deform, and thus change the size of the air inlet hole 18 to adjust the intake air flow rate;

[0063] When the piston 1101 moves, it will drive the movable plate 905 in the first spoiler component 9 to move along with the air blocking component 11. Through the cooperation of the driving wheel 910 and the inclined groove 908, the lifting seat 9-04 and the lifting frame 903 are driven to rise. Since the tooth groove 906 meshes with the missing gear 912, the spoiler plate 902 rotates. The greater the intake air flow rate, the greater the rotation amplitude of the spoiler plate 902, so that the hydrogen forms a complex turbulent flow path in the square pipe 403. Finally, after the hydrogen is ejected through the diversion holes on the surface of the flow equalizing frame 17, it comes into full contact with the deoxidation catalyst 16 to carry out deoxidation reactions;

[0064] While the first spoiler component 9 is working, the second spoiler component 3 is started synchronously. The driver 301 drives the driving gear 306 to rotate, and then the toothed ring 303 rotates. The spiral spoiler 305 installed at the bottom of the toothed ring 303 rotates accordingly. The spiral spoiler 305 pushes the hydrogen to form a spiral flow path in the deoxidation tank 1, not only making the hydrogen come into full contact with the deoxidation catalyst 16, but also agitating the deoxidation catalyst 16. At the same time, the inner annular seat 10 and the outer annular seat 15 also play a role in disturbing the flow, further improving the contact effect between the hydrogen and the deoxidation catalyst 16 and enhancing the deoxidation efficiency;

[0065] The deoxidized hydrogen continues to rise to the position of the outlet pipe 7, and the hydrogen is filtered through the filter screen 13 to remove the fragmented deoxidation catalyst 16 it carries. When the spiral spoiler 305 rotates, it drives the cleaning scraper 14 to scrape and clean the filter screen 13 to prevent the filter screen 13 from being blocked. The filtered high-purity hydrogen is discharged through the outlet pipe 7;

[0066] When the deoxidation catalyst 16 needs to be replaced, open the valve 8, drive the spiral spoiler 305 to rotate through the driver 301, push the deoxidation catalyst 16 downward, and discharge it quickly for replacement.

[0067] Combined with the current actual needs, the above implementation manner adopted in this application, the protection scope is not limited to this. Within the knowledge scope of those skilled in the art, various changes made without departing from the concept of this application still fall within the protection scope of the present invention.

Claims

1. A high-purity hydrogen purifier, comprising a deoxidation tank (1), characterized in that: An inner cylinder (4) is installed at the middle position of the deoxidation tank (1), and the inner cylinder (4) is integrally composed of a circular pipe (401), a connecting pipe (402) and a square pipe (403) from top to bottom. A heater (5) is installed at the top of the circular pipe (401), and a heating pipe (19) inserted into the square pipe (403) is arranged at the bottom of the heater (5). Installation holes are arranged on both sides of the circular pipe (401), and an air inlet pipe (6) is fixed to the inner wall of the installation hole. Air inlet holes (18) are arranged on both sides of the air inlet pipe (6), and the air inlet holes (18) are designed to be elliptical. A gas blocking component (11) for opening and closing the air inlet holes (18) is arranged inside the air inlet pipe (6). A first flow disturbing component (9) is arranged at the bottom of the gas blocking component (11) and inside the square pipe (403). The gas blocking component (11) includes a piston (1101) attached to the inner wall of the air inlet pipe (6) for adjusting the aperture of the air inlet hole (18), and one end of the piston (1101) is fixed with a movable disk (1102). One end of the bottom of the movable disk (1102) is fixed to one end of a movable plate (905). The first flow disturbing component (9) includes a limiting groove (911) arranged on one side of the bottom of the air inlet pipe (6), and a movable plate (905) passing through the limiting groove (911) is arranged at the bottom of the gas blocking component (11). Vertically arranged flow disturbing flat plates (902) are rotatably connected to both sides of the inner wall of the square pipe (403), and the positions of adjacent two flow disturbing flat plates (902) are staggered. First clamping grooves (913) are arranged at the middle of the bottom of the flow disturbing flat plates (902), and missing gears (912) are fixed to the top of the inner walls of the first clamping grooves (913). A plurality of U-shaped sliding rails (901) are fixed to the middle of the inner walls at both ends of the square pipe (403), and sliders (907) are slidably arranged on the inner walls of the U-shaped sliding rails (901). The sliders (907) are fixed with the same lifting frame (903). A plurality of rows of equally spaced tooth grooves (906) are arranged on both sides of the lifting frame (903), and the tooth grooves (906) are meshed with the missing gears (912). A lifting seat (904) is fixed to the top of the lifting frame (903), and connecting grooves (909) for the movable plate (905) to move are arranged on the lifting seat (904) and the lifting frame (903). Oblique grooves (908) are arranged on both sides of the lifting seat (904), and driving wheels (910) slidably arranged in the oblique grooves (908) are rotatably connected to both sides of the movable plate (905). A second flow disturbing component (3) is arranged inside the deoxidation tank (1) and outside the inner cylinder (4).

2. The high-purity hydrogen purifier according to claim 1, wherein: A guiding hole is arranged at one end of the air inlet pipe (6), and a movable column (1104) passing through the guiding hole is fixed to one end of the movable disk (1102). A spring (1103) is installed between the outer wall of one end of the movable disk (1102) and the inner wall of one end of the air inlet pipe (6), and the spring (1103) is sleeved on the movable column (1104). The cross section of the movable column (1104) is designed to be T-shaped.

3. The high-purity hydrogen purifier according to claim 2, characterized in that: Both sides of the bottom of the spoiler flat plate (902) are provided with second card slots (914), and the positions of the second card slots (914) correspond to the positions of the heating pipes (19), and the positions of the first card slots (913) correspond to the positions of the lifting frames (903).

4. The high-purity hydrogen purifier according to claim 3, wherein: A flow equalizing frame (17) is installed at the bottom of the inner wall of the square pipe (403), and the flow equalizing frame (17) is designed in the shape of a hollow quadrangular frustum, and a plurality of flow dividing holes are formed on the surface of the flow equalizing frame (17).

5. A high-purity hydrogen purifier according to claim 4, characterized in that: One side of the deoxidation tank (1) near the top is fixed with a feed pipe (2), and the middle of the bottom of the deoxidation tank (1) is fixed with a discharge pipe. Valves (8) are installed at the bottom ends of the discharge pipe and one end of the feed pipe (2), and a deoxidation catalyst (16) is filled inside the deoxidation tank (1).

6. The high-purity hydrogen purifier according to claim 5, wherein: The second spoiler assembly (3) includes a partition plate (12) fixed to the top of the inner wall of the deoxidation tank (1) and the bottom of the outer wall of the round pipe (401), and a bearing sleeve (302) is installed at the bottom of the partition plate (12). A gear ring (303) is installed on the inner wall of the bearing sleeve (302), and a driving gear (306) is engaged with the inner wall of the gear ring (303). A driver (301) for driving the driving gear (306) to rotate is installed at the top of the deoxidation tank (1). A plurality of rotating columns (304) are installed at the bottom of the gear ring (303), and the same spiral spoiler plate (305) is installed at the bottom of the rotating columns (304). The spiral spoiler plate (305) is located at the middle position of the gap between the inner wall of the deoxidation tank (1) and the outer wall of the square pipe (403).

7. The high-purity hydrogen purifier according to claim 6, wherein: Inner annular seats (10) are installed on the outer wall of the square pipe (403) at equal intervals, and outer annular seats (15) are installed on the inner wall of the deoxidation tank (1) at equal intervals. The positions of the outer annular seats (15) correspond to the positions of the inner annular seats (10). The spiral spoiler plate (305) passes through the gap between the inner annular seat (10) and the outer annular seat (15), and the outer wall of the inner annular seat (10) and the inner wall of the outer annular seat (15) are both designed in a pointed V shape.

8. A high-purity hydrogen purifier according to claim 7, characterized in that: An air outlet pipe (7) is fixed to the other side of the deoxidation tank (1) near the top, and the position of the air outlet pipe (7) is higher than the top surface of the deoxidation catalyst (16). A filtering component is arranged at one end of the air outlet pipe (7).

9. The high-purity hydrogen purifier according to claim 8, wherein: The filtering component includes a filter screen (13) installed at one end of the air outlet pipe (7), and the filter screen (13) is designed in an arc shape. A cleaning scraper (14) is installed on one side of the spiral spoiler plate (305), and the cleaning scraper (14) is attached to the filter screen (13).

10. A high-purity hydrogen purification method, applied to a high-purity hydrogen purifier as described in claim 9, characterized in that, Including the following steps: Step 1: Fill the deoxidation catalyst (16) into the gap between the inner wall of the deoxidation tank (1) and the outer wall of the inner cylinder (4) through the feed pipe (2); Step 2: The hydrogen to be purified is introduced through the inlet pipe (6). A gas blocking component (11) is arranged at the elliptical air inlet holes (18) on both sides of the inlet pipe (6), and its piston (1101) can adjust the aperture of the air inlet holes (18). When hydrogen enters, the pressure change will cause the piston (1101) to move and change the size of the air inlet holes (18); Step 3: When the piston (1101) moves, the first flow disturbance assembly (9) starts to function, causing the movable plate (905) to move with the air blocking assembly (11). The lifting seat (904) and the lifting frame (903) move up and down through the cooperation of the driving wheel (910) and the inclined groove (908), and the flow disturbance flat plate (902) rotates under the meshing action of the tooth groove (906) and the missing gear (912). The greater the intake air flow, the greater the rotation amplitude of the flow disturbance flat plate (902), which makes the hydrogen form a complex flow disturbance path in the square pipe (403). Finally, the hydrogen is ejected through the diversion holes on the surface of the flow equalizing frame (17) and comes into full contact with the deoxidation catalyst (16) for deoxidation reaction; Step 4: During the process of Step 3, the second flow disturbance assembly (3) is started synchronously. The driver (301) drives the driving gear (306) to rotate, and then the gear ring (303) rotates. The spiral flow disturbance plate (305) installed at the bottom of the gear ring (303) rotates accordingly. The spiral flow disturbance plate (305) pushes the hydrogen to form a spiral flow path in the deoxidation tank (1), also agitates the deoxidation catalyst (16), and cooperates with the flow disturbance effects of the inner annular seat (10) and the outer annular seat (15), so that the hydrogen comes into full contact with the deoxidation catalyst (16) in the tank, improving the deoxidation efficiency; Step 5: The deoxidized hydrogen continues to rise to the position of the outlet pipe (7). The hydrogen is filtered through the filter screen (13) installed at one end of the outlet pipe (7) to remove the fragmented deoxidation catalyst (16) it carries. And when the spiral flow disturbance plate (305) rotates, it drives the cleaning scraper (14) to scrape and clean the filter screen (13) to prevent the filter screen (13) from being blocked. The filtered high-purity hydrogen is discharged through the outlet pipe (7); Step 6: When the deoxidation catalyst (16) needs to be replaced, the valve (8) is opened, and the spiral flow disturbance plate (305) is driven to rotate by the driver (301) to push the deoxidation catalyst (16) downward to quickly discharge it.

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