A pressure swing adsorption hydrogen purification device

Abstract

The present invention discloses a pressure swing adsorption hydrogen purification device, which relates to the technical field of hydrogen purification, and includes a first adsorption tower, a second adsorption tower and a treatment box. The first adsorption tower and the second adsorption tower are both connected to a gas storage tank. A filter rotating cylinder is rotatably arranged inside the impurity removal chamber, a heating box is fixedly arranged inside the heating chamber, a cooling pipe is arranged inside the cooling chamber, a water removal pipe is arranged inside the dehydration chamber, and the output end of the water removal pipe is communicated with the inside of the gas storage tank. A first water removal mechanism is arranged inside the cooling chamber, and a second water removal mechanism is arranged inside the second drain pipe. By arranging a filter rotating cylinder, a heating box, a cooling pipe and a second drain pipe inside the treatment box, the present invention facilitates the impurity removal, heating and two-stage water removal of the gas, enables the centralized setting of the gas treatment, and does not require separately controlling the linkage of multiple components during use. Only by controlling a small number of devices to work can the gas treatment be completed.

Description

Technical Field

[0001] The present invention relates to the technical field of hydrogen purification, and specifically to a pressure swing adsorption hydrogen purification device. Background Art

[0002] Pressure swing adsorption technology is widely used in the separation of various mixed gases, such as purifying oxygen and nitrogen from air, purifying carbon dioxide from industrial tail gases rich in carbon dioxide, purifying carbon monoxide from mixed gases rich in carbon monoxide, and purifying hydrogen from various mixed gases rich in hydrogen. Among them, hydrogen, as an important industrial gas, has a large demand and a wide range of applications. Therefore, the research and development of pressure swing adsorption hydrogen purification technology are more in-depth. The pressure swing adsorption process consists of a series of adsorption steps, pressure reduction steps, and desorption and regeneration steps. The improvement of the pressure swing adsorption process is mainly achieved by optimizing the steps that make up the pressure swing adsorption cycle and the combination method of these steps.

[0003] Before hydrogen purification, it is necessary to filter the mixed gas to be treated to remove water and solid particle impurities in the mixed gas. However, in the existing hydrogen purification devices, when removing impurities from the gas, most of them first dry and freeze the gas, and then filter the particle impurities in the gas. This method causes solid particles to mix with the liquid in the gas when the gas passes through the drying and freezing components, making the solid particles adhere to the inner part of the transmission pipeline, thus affecting the gas transmission. And when filtering the solid particles, most use filter cores for filtration, which makes it necessary to frequently replace the filter cores during actual use, making it more cumbersome in use. Moreover, when the existing pressure swing adsorption purification equipment treats the gas for impurity removal, it needs to use a variety of equipment to work, resulting in non-concentration of the equipment during use, and it is necessary to separately control a variety of different equipment to work in coordination.

[0004] Based on this, a pressure swing adsorption hydrogen purification device is now provided, which can eliminate the drawbacks of the existing devices. Summary of the Invention

[0005] The purpose of the present invention is to provide a pressure swing adsorption hydrogen purification device to solve the problem that solid impurities are easily attached to the inner part of the transmission pipeline in the background art.

[0006] To achieve the above purpose, the present invention provides the following technical solutions:

[0007] A pressure swing adsorption hydrogen purification device, comprising a first adsorption tower, a second adsorption tower and a treatment box. The first adsorption tower and the second adsorption tower are connected to each other. Both the first adsorption tower and the second adsorption tower are connected to a gas storage tank. Inside the treatment box, there are several layered plates, which divide the treatment box into an impurity removal chamber, a heating chamber, a cooling chamber and a dehydration chamber. Inside the impurity removal chamber, a filtering rotary drum is rotatably arranged. Inside the heating chamber, a heating box is fixedly arranged. Inside the cooling chamber, a cooling pipe is arranged. Inside the dehydration chamber, a dehydration pipe is arranged. The output end of the dehydration pipe is communicated with the inside of the gas storage tank. A filtering cloth is fixedly arranged on the outer side of the filtering rotary drum. One end of the filtering rotary drum is rotatably provided with a partition plate, and the partition plate is fixedly arranged inside the impurity removal chamber. A moving plate is slidably arranged on the filtering rotary drum, and one end of the moving plate is slidably arranged in a rectangular through hole on one side of the partition plate. Inside the impurity removal chamber, there is a cleaning mechanism for cleaning the outer side of the filtering cloth. One end of the filtering rotary drum is rotatably provided with a rotating pipe, and the rotating pipe is communicated with one end of a spiral pipe. The spiral pipe is fixedly arranged inside the heating box. Inside the heating box, there is a heating wire. Both ends of the cooling pipe are communicated with a first air inlet pipe. Inside the cooling chamber, there is a first dehydration mechanism for dehydrating the gas for the first time. Inside the dehydration pipe, there is a second dehydration mechanism for dehydrating the gas for the second time.

[0008] On the basis of the above technical solution, the present invention also provides the following optional technical solutions:

[0009] In an optional solution: The cleaning mechanism includes a cleaning pipe. Several brush hairs are symmetrically arranged at the upper end of the cleaning pipe. A spraying hole is arranged at the upper end of the cleaning pipe. Two guiding sliding rods are symmetrically and slidably arranged at one end of the cleaning pipe, and the guiding sliding rods are fixedly arranged inside the impurity removal chamber. The input end of the cleaning pipe is communicated with one end of a hose, and the other end of the hose is communicated with the output end of a liquid pump. The liquid pump is fixedly arranged outside the treatment box. The input end of the liquid pump is communicated with the output end of an external liquid supply component. A fixing rod is fixedly arranged at the bottom end of the cleaning pipe. Connecting rods are hinged at both ends of the fixing rod, and the other ends of the connecting rods are hinged with rotating seats. The rotating seats are fixedly arranged on one side of the moving plate. One side of the moving plate is fixedly connected with the output ends of two tension spring telescopic rods. The tension spring telescopic rods are fixedly arranged inside the impurity removal chamber. A collection box is arranged below the filtering rotary drum. A filter plate is arranged inside the collection box. The collection box is fixedly arranged at the bottom end inside the impurity removal chamber. One end of the filtering rotary drum is fixedly connected with the output end of a first motor. The first motor is fixedly arranged outside the treatment box. An air inlet pipe is communicated with the impurity removal chamber.

[0010] In an optional solution: A water absorption roller is arranged on one side of the cleaning pipe. A pressing roller is tightly pressed on the water absorption roller. The rotating shafts at both ends of the water absorption roller and the pressing roller are rotatably arranged on a rotating frame. The rotating frame is fixedly arranged on one side of the cleaning pipe.

[0011] In an alternative solution: A number of first magnets are circularly arrayed on one side of the moving plate, second magnets are provided at positions corresponding to the first magnets on one side of the partition plate, the first magnets and the second magnets adsorb each other, an installation hole is provided on the partition plate, a pressure sensor is provided in the installation hole, and the pressure sensor is electrically connected to the liquid pump.

[0012] In an alternative solution: The first dehydration mechanism includes a gas distribution pipe, the input end of the gas distribution pipe is communicated with the output end of the spiral pipe, the gas distribution pipe is fixedly arranged at the inner top end of the cooling chamber, a number of exhaust holes are provided at the bottom end of the gas distribution pipe, the bottom end of the gas distribution pipe is arc-shaped, a number of heat conduction fins are circularly arrayed on the cooling pipe, a sealing baffle is fixedly arranged on one side of the gas distribution pipe, the sealing baffle is coaxially arranged with the cooling pipe, fixing rings are provided at both ends of the heat conduction fins on the gas distribution pipe, one end of the heat conduction fin is closely attached to the bottom end of the gas distribution pipe and the inner side of the sealing baffle, the other end of the heat conduction fin extends into the cooling pipe, a closed chamber is formed by combining the two heat conduction fins with the bottom end of the gas distribution pipe and the inner side of the sealing baffle, a fixed baffle is fixedly arranged at the bottom end of the cooling chamber, the first air inlet pipe is rotatably arranged in the rotation holes on both sides of the processing box, a first fixed fan is fixedly arranged inside each first air inlet pipe, a first toothed ring is fixedly arranged on one of the first air inlet pipes, a gear is meshed with the first toothed ring, the gear is fixedly arranged on the output end of the second motor, the second motor is fixedly arranged on one side of the processing box, and a liquid drainage component for facilitating the drainage of condensed water is arranged inside the cooling chamber.

[0013] In an alternative solution: The liquid drainage component includes a first liquid drainage pipe, the first liquid drainage pipe is fixedly arranged in the installation hole at the bottom end of the cooling chamber, the cooling chamber is communicated with the dehydration chamber through the first liquid drainage pipe, a plug column is slidably arranged in the drainage hole at the bottom end of the first liquid drainage pipe, a support frame is slidably arranged on the plug column, the support frame is fixedly arranged inside the first liquid drainage pipe, a floating plate is fixedly arranged at one end of the plug column, the middle of the floating plate is hollow, and a counterweight ring is fixedly arranged at the upper end of the floating plate.

[0014] In an alternative solution: The second dehydration mechanism includes a spiral plate, the spiral plate is fixedly arranged inside the dehydration pipe, the input end of the dehydration pipe is communicated with a fixed pipe, one end of the fixed pipe is communicated with the inside of the cooling chamber, the spiral plate is arranged in a conical spiral shape, the bottom end of the dehydration pipe is communicated with a second liquid drainage pipe, a sliding plate is slidably arranged inside the second liquid drainage pipe, a sliding rod is fixedly arranged at the bottom end of the sliding plate, the sliding rod is slidably arranged in the sliding hole at the bottom end of the second liquid drainage pipe, a tension spring is arranged between one end of the sliding rod and the bottom end of the second liquid drainage pipe, a number of drainage holes are provided on the second liquid drainage pipe at a position below the initial position of the sliding plate, and a drainage pipe is communicated with the dehydration chamber.

[0015] In an alternative solution: a rotating hole is provided on one side of the dehydration chamber, a second intake pipe is rotatably provided in the rotating hole, a second fixed fan is fixedly provided inside the second intake pipe, one end of the second motor is fixedly provided with a second gear ring, and the second gear ring meshes with the first gear ring.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] By providing a filter rotating cylinder, a heating box, a cooling pipe and a second drain pipe inside the processing box, the present invention facilitates the impurity removal, heating and two-stage dehydration of the gas, enabling the centralized setting of the gas treatment. During use, there is no need to separately control multiple components for linkage. Only a small number of devices need to be controlled to work, and the gas treatment can be completed. Moreover, the cleaning mechanism is used to clean the outside of the filter cloth, reducing the attachment of solid impurities in the transmission pipeline. The structure of the present invention is simple, and the impurity removal and dehydration can be completed by utilizing the gas flow. Additionally, the cleaning mechanism can be triggered by the gas flow, thereby increasing the practicality of the pressure swing adsorption hydrogen purification equipment. At the same time, by slidably arranging a plug column in the drain hole at the bottom of the first drain pipe, a floating plate is arranged at one end of the plug column, a sliding plate is slidably arranged inside the second drain pipe, and a tension spring is arranged at the bottom end of the second drain pipe, it is possible to use the condensed water for sealing when discharging the condensed water, preventing the gas from being discharged outside the processing box. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic structural diagram of the present invention.

[0019] Figure 2 It is a schematic diagram of the internal structure of the processing box of the present invention.

[0020] Figure 3 It is a schematic diagram of the structure of the filter rotating cylinder of the present invention.

[0021] Figure 4 It is a schematic diagram of the structure of the partition plate and the moving plate of the present invention.

[0022] Figure 5 It is a schematic diagram of the structure of the heating box of the present invention.

[0023] Figure 6 It is a schematic diagram of the installation of the first fixed fan and the second fixed fan of the present invention.

[0024] Figure 7 It is a schematic diagram of the structure of the cooling pipe of the present invention.

[0025] Figure 8 It is a schematic diagram of the structure of the spiral plate of the present invention.

[0026] Annotation of reference numerals: 11 first adsorption tower, 12 second adsorption tower, 13 gas storage tank, 14 treatment box, 15 intake pipe, 16 filter drum, 17 filter cloth, 18 first motor, 19 partition plate, 20 moving plate, 21 tension spring telescopic rod, 22 connecting rod, 23 cleaning pipe, 24 liquid pump, 25 collection box, 26 filter plate, 27 water absorption roller, 28 extrusion sensor, 29 second magnet, 30 spiral pipe, 31 heating box, 32 air distribution pipe, 33 cooling pipe, 34 heat conduction fin, 35 first intake pipe, 36 first fixed fan, 37 first toothed ring, 38 second motor, 39 fixed baffle, 40 first drain pipe, 41 plug column, 42 floating plate, 43 dehydrating pipe, 44 spiral plate, 45 second drain pipe, 46 sliding plate, 47 tension spring, 48 second intake pipe, 49 second toothed ring, 50 second fixed fan. Detailed implementation manners

[0027] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0028] In one embodiment, as Figures 1-8 shown, a pressure swing adsorption type hydrogen purification device includes a first adsorption tower 11, a second adsorption tower 12 and a treatment box 14. The first adsorption tower 11 and the second adsorption tower 12 are communicated with each other. The first adsorption tower 11 and the second adsorption tower 12 are both communicated with a gas storage tank 13. A plurality of layered plates are arranged inside the treatment box 14, and the plurality of layered plates divide the treatment box 14 into an impurity removal chamber, a heating chamber, a cooling chamber and a dehydration chamber. A filter drum 16 is rotatably arranged inside the impurity removal chamber, a heating box 31 is fixedly arranged inside the heating chamber, a cooling pipe 33 is arranged inside the cooling chamber, and a dehydrating pipe 43 is arranged inside the dehydration chamber. The output end of the dehydrating pipe 43 is communicated with the inside of the gas storage tank 13. A filter cloth 17 is fixedly arranged on the outer side of the filter drum 16. One end of the filter drum 16 is rotatably provided with a partition plate 19, and the partition plate 19 is fixedly arranged inside the impurity removal chamber. A moving plate 20 is slidably arranged on the filter drum 16, and one end of the moving plate 20 is slidably arranged inside a rectangular through hole on one side of the partition plate 19. A cleaning mechanism for cleaning the outer side of the filter cloth 17 is arranged inside the impurity removal chamber. One end of the filter drum 16 is rotatably provided with a rotating pipe, and the rotating pipe is communicated with one end of a spiral pipe 30. The spiral pipe 30 is fixedly arranged inside the heating box 31, and a heating wire is arranged inside the heating box 31. Both ends of the cooling pipe 33 are communicated with a first intake pipe 35. A first dehydration mechanism for performing primary dehydration on the gas is arranged inside the cooling chamber, and a second dehydration mechanism for performing secondary dehydration on the gas is arranged inside the dehydrating pipe 43. The cleaning mechanism facilitates cleaning of impurities adsorbed on the outer side of the filter cloth 17. The first dehydration mechanism facilitates primary dehydration of the gas, and the second dehydration mechanism facilitates secondary dehydration of the gas;

[0029] The cleaning mechanism includes a cleaning tube 23, a plurality of bristles are symmetrically arranged on the upper end of the cleaning tube 23, a spray hole is arranged on the upper end of the cleaning tube 23, a guide slide bar is symmetrically slidably arranged on one end of the cleaning tube 23, and the guide slide bar is fixedly arranged inside the impurity removal chamber, the input end of the cleaning tube 23 is connected with one end of the hose, and the other end of the hose is connected with the output end of the liquid pump 24, and the liquid pump 24 is fixedly arranged outside the processing box 14, and the input end of the liquid pump 24 is connected with the output end of the external liquid supply component, and a fixing rod is fixedly arranged on the bottom end of the cleaning tube 23, and connecting rods 22 are hinged at both ends of the fixing rod. The other end of the connecting rod 22 is hinged with a rotating seat, and the rotating seat is fixedly arranged on one side of the moving plate 20. One side of the moving plate 20 is fixedly connected with the output ends of two tension spring telescopic rods 21 respectively, and the tension spring telescopic rods 21 are fixedly arranged inside the impurity removal chamber. A collecting box 25 is provided below the filter drum 16, and a filter plate 26 is provided inside the collecting box 25. The collecting box 25 is fixedly arranged at the bottom end of the impurity removal chamber. One end of the filter drum 16 is fixedly connected to the output end of the first motor 18. The first motor 18 is fixedly arranged outside the processing box 14. The impurity removal chamber is connected to the upper An air inlet pipe 15 is provided. When in use, when hydrogen purification is required, the external gas delivery component delivers the compressed gas to the interior of the impurity removal chamber through the air inlet pipe 15, and then the gas passes through the filter cloth 17 and enters the interior of the filter drum 16. At the same time, the output end of the first motor 18 drives the filter drum 16 to rotate slowly, and the filter cloth 17 filters the impurities and oil in the gas. When the filter cloth 17 works for a long time and the outer side is blocked by oil and solid particles, the gas entering the impurity removal chamber cannot be discharged, so that the gas inside the impurity removal chamber pushes the moving plate 20 to move. When the moving plate 20 moves, it passes through the connecting rod 2 2 drives the cleaning pipe 23 to move. When the brush on the cleaning pipe 23 is in close contact with the outer side of the filter cloth 17, the liquid pump 24 extracts the cleaning liquid and transports it to the inside of the cleaning pipe 23. The cleaning pipe 23 sprays the liquid onto the filter cloth 17 through the spray hole. The cleaning liquid can decompose the oil stains on the filter cloth 17. At the same time, the brush can clean the solid particles and impurities on the outer side of the filter cloth 17. The used cleaning liquid falls into the collecting box 25 for collection. When the outer side of the filter cloth 17 is unblocked, the movable plate 20 returns to the initial position under the action of the tension spring telescopic rod 21, and the cleaning pipe 23 is away from the filter cloth 17.

[0030] On one side of the cleaning pipe 23, there is a water absorption roller 27. A squeezing roller is tightly pressed on the water absorption roller 27. The rotating shafts at both ends of the water absorption roller 27 and the squeezing roller are rotatably arranged on the rotating frame. The rotating frame is fixedly arranged on one side of the cleaning pipe 23. During use, when the cleaning pipe 23 moves, the cleaning pipe 23 drives the water absorption roller 27 and the squeezing roller to move, so that the water absorption roller 27 is closely attached to the outer side of the filter cloth 17. After the cleaning pipe 23 cleans the filter cloth 17, the water absorption roller 27 can adsorb the excess cleaning liquid on the filter cloth 17. At the same time, the close attachment of the water absorption roller 27 to the filter cloth 17 causes the water absorption roller 27 to rotate, and the squeezing roller can squeeze out the excess cleaning liquid inside the water absorption roller 27. The filter cloth 17 is in a wet state after being cleaned, which can better make solid particle impurities adhere to the filter cloth 17.

[0031] On one side of the moving plate 20, a number of first magnets are circularly arrayed. At positions corresponding to the first magnets on one side of the partition plate 19, second magnets 29 are provided. The first magnets and the second magnets 29 adsorb each other. An installation hole is provided on the partition plate 19, and a squeezing sensor 28 is arranged in the installation hole. The squeezing sensor 28 is electrically connected to the liquid pump 24. During use, when the pressure inside the impurity removal chamber increases and causes the moving plate 20 to move, the moving plate 20 drives a number of first magnets to move. When the first magnets approach the second magnets 29, the first magnets and the second magnets 29 adsorb each other, so as to fix the moving plate 20. At the same time, the moving plate 20 squeezes the squeezing sensor 28. The squeezing sensor 28 is electrically connected to an external control component, so that the external control component controls the liquid pump 24 to start. After the outer side of the filter cloth 17 is cleaned, the gas inside the impurity removal chamber no longer acts on the moving plate 20, so that the moving plate 20 returns to its initial position, and at the same time the liquid pump 24 stops.

[0032] The first dehydration mechanism includes a gas distribution pipe 32. The input end of the gas distribution pipe 32 is communicated with the output end of the spiral pipe 30. The gas distribution pipe 32 is fixedly arranged at the inner top end of the cooling chamber. A number of exhaust holes are provided at the bottom end of the gas distribution pipe 32. The bottom end of the gas distribution pipe 32 is arc-shaped. A number of heat conduction fins 34 are circularly arranged on the cooling pipe 33. A sealing baffle is fixedly arranged on one side of the gas distribution pipe 32. The sealing baffle is coaxially arranged with the cooling pipe 33. Fixing rings are provided at both ends of the heat conduction fin 34 on the gas distribution pipe 32. One end of the heat conduction fin 34 is closely attached to the bottom end of the gas distribution pipe 32 and the inner side of the sealing baffle. The other end of the heat conduction fin 34 extends into the cooling pipe 33. A closed chamber is formed by combining the two heat conduction fins 34 with the bottom end of the gas distribution pipe 32 and the inner side of the sealing baffle. A fixing baffle 39 is fixedly arranged at the bottom end of the cooling chamber. The first air inlet pipe 35 is rotatably arranged in the rotation holes on both sides of the processing box 14. A first fixed fan 36 is fixedly arranged inside each of the first air inlet pipes 35. A first gear ring 37 is fixedly arranged on one of the first air inlet pipes 35. A gear is meshed with the first gear ring 37. The gear is fixedly arranged on the output end of the second motor 38. The second motor 38 is fixedly arranged on one side of the processing box 14. During use, when the gas after impurity removal enters the heating box 31 through the spiral pipe 30, the heating wire inside the heating box 31 starts to work, heating the inside of the heating box 31, thereby heating the gas inside the spiral pipe 30. Subsequently, the heated gas is discharged through the gas distribution pipe 32, enabling the gas to enter the closed chamber. At the same time, the output end of the second motor 38 drives the gear to rotate. The gear is meshed with the first gear ring 37, driving the cooling pipe 33 and the first air inlet pipe 35 to rotate. When the first air inlet pipe 35 rotates, it drives the first fixed fan 36 to rotate, allowing external air to enter the cooling pipe 33. Since the cross-sectional diameter of the cooling pipe 33 is smaller than that of the first air inlet pipe 35, the air flow velocity in the middle of the cooling pipe 33 increases, cooling the heated air and thus condensing the water in the gas. When the heat conduction fin 34 detaches from the sealing baffle, the condensed water drops to the bottom end of the cooling chamber. A liquid discharge assembly for facilitating the discharge of the condensed water is provided inside the cooling chamber.

[0033] The liquid drainage assembly includes a first liquid drainage pipe 40, which is fixedly arranged in the mounting hole at the bottom end of the cooling chamber. The cooling chamber is communicated with the dehydration chamber through the first liquid drainage pipe 40. A plug column 41 is slidably arranged in the liquid drainage hole at the bottom end of the first liquid drainage pipe 40. A support frame is slidably arranged on the plug column 41, and the support frame is fixedly arranged inside the first liquid drainage pipe 40. One end of the plug column 41 is fixedly provided with a floating plate 42. The middle part of the floating plate 42 is hollow. A counterweight ring is fixedly arranged at the upper end of the floating plate 42. During use, when the condensed water inside the cooling chamber enters the inside of the first liquid drainage pipe 40, since the liquid drainage hole is blocked by the plug column 41, the condensed water accumulates inside the first liquid drainage pipe 40. When the liquid level inside the first liquid drainage pipe 40 exceeds the support frame, due to the hollow inside the floating plate 42, the floating plate 42 floats on the liquid surface. At the same time, the floating plate 42 drives the plug column 41 to move. When the plug column 41 disengages from the liquid drainage hole, the condensed water flows into the inside of the dehydration chamber.

[0034] The second dehydration mechanism includes a spiral plate 44, which is fixedly arranged inside the water drainage pipe 43. The input end of the water drainage pipe 43 is communicated with a fixed pipe, and one end of the fixed pipe is communicated with the inside of the cooling chamber. The spiral plate 44 is arranged in a conical spiral shape. The bottom end of the water drainage pipe 43 is communicated with a second liquid drainage pipe 45. A sliding plate 46 is slidably arranged inside the second liquid drainage pipe 45. A sliding rod is fixedly arranged at the bottom end of the sliding plate 46, and the sliding rod is slidably arranged in the sliding hole at the bottom end of the second liquid drainage pipe 45. A tension spring 47 is arranged between one end of the sliding rod and the bottom end of the second liquid drainage pipe 45. A plurality of liquid drainage holes are arranged on the second liquid drainage pipe 45 at a position below the initial position of the sliding plate 46. The dehydration chamber is communicated with a drain pipe. During use, when the liquid after the first dehydration enters the inside of the water drainage pipe 43, the gas flows along the spiral channel formed by the spiral plate 44 and the inner side of the water drainage pipe 43. Since the spiral channel is arranged in a conical spiral shape, the water in the gas is dehydrated for the second time under the action of centrifugal force. Then the gas enters the inside of the gas storage tank 13 for standby. By alternately changing the pressure of the first adsorption tower 11 and the second adsorption tower 12, the hydrogen is purified. The separated liquid drops into the inside of the second liquid drainage pipe 45. When the liquid level inside the second liquid drainage pipe 45 increases, the sliding plate 46 slides inside the second liquid drainage pipe 45. When the upper end position of the sliding plate 46 exceeds the liquid drainage hole, the liquid flows into the bottom end of the dehydration chamber. It should be noted that the first adsorption tower 11, the second adsorption tower 12 and the gas storage tank 13 in this application are all conventional components and the technology is relatively mature, so they are not described in detail in this application. The specific structure and working principle are not elaborated here.

[0035] A rotating hole is provided on one side of the dehydration chamber, and a second air inlet pipe 48 is rotatably provided in the rotating hole. A second fixed fan 50 is fixedly provided inside the second air inlet pipe 48. A second gear ring 49 is fixedly provided at one end of the second motor 38, and the second gear ring 49 is meshed with the first gear ring 37. When in use, when the first gear ring 37 rotates, the first gear ring 37 meshes with the second gear ring 49, thereby driving the second air inlet pipe 48 to rotate. When the second air inlet pipe 48 rotates, it also drives the second fixed fan 50 to rotate, so that external air enters the dehydration chamber, thereby cooling the gas inside the dehydration pipe 43.

[0036] The above embodiment discloses a pressure swing adsorption hydrogen purification equipment, wherein when hydrogen purification is required, the external gas delivery component delivers the compressed gas to the interior of the impurity removal chamber through the air inlet pipe 15, and then the gas passes through the filter cloth 17 and enters the interior of the filter drum 16. At the same time, the output end of the first motor 18 drives the filter drum 16 to rotate slowly, and the filter cloth 17 filters the impurities and oil in the gas. When the filter cloth 17 works for a long time and the outer side is blocked by oil and solid particles, the gas entering the impurity removal chamber cannot be discharged, so that the gas inside the impurity removal chamber pushes the moving plate 20 to move. When the moving plate 20 moves, it drives the cleaning pipe 23 to move through the connecting rod 22. When the first magnet and the second magnet 29 are attracted to each other, the moving plate 20 is fixed, and at the same time, the moving plate 20 squeezes the extrusion sensor 28. The extrusion sensor 28 is electrically connected to the external control component, so that the external control component controls the liquid When the pump 24 is started, when the brush on the cleaning pipe 23 is in close contact with the outer side of the filter cloth 17, the liquid pump 24 extracts the cleaning liquid and transports it to the inside of the cleaning pipe 23. The cleaning pipe 23 sprays the liquid onto the filter cloth 17 through the spray hole. The cleaning liquid can decompose the oil stains on the filter cloth 17. At the same time, the brush can clean the solid particle impurities on the outer side of the filter cloth 17. The water suction roller 27 can absorb the excess cleaning liquid on the filter cloth 17. At the same time, the water suction roller 27 is in close contact with the filter cloth 17 so that the water suction roller 27 rotates. The squeezing roller can squeeze out the excess cleaning liquid inside the water suction roller 27. The used cleaning liquid falls into the collecting box 25 for collection. When the outer side of the filter cloth 17 is unblocked and cleaned, the gas inside the impurity removal chamber no longer acts on the movable plate 20. At the same time, the liquid pump 24 stops. Under the action of the tension spring telescopic rod 21, the movable plate 20 returns to the initial position, and the cleaning pipe 23 is away from the filter cloth 17.

[0037] After the gas after impurity removal enters the interior of the heating box 31 through the spiral tube 30, the heating wire inside the heating box 31 starts to work, heating the interior of the heating box 31, thereby heating the gas inside the spiral tube 30. Subsequently, the heated gas is discharged through the air distribution pipe 32, enabling the gas to enter the closed chamber. At the same time, the output end of the second motor 38 drives the gear to rotate, and the gear meshes with the first toothed ring 37, driving the cooling tube 33 and the first intake pipe 35 to rotate. When the first intake pipe 35 rotates, it drives the first fixed fan 36 to rotate, allowing external air to enter the interior of the cooling tube 33. Since the cross-sectional diameter of the cooling tube 33 is smaller than that of the first intake pipe 35, the air flow velocity in the middle of the cooling tube 33 increases, cooling the heated air and thus condensing the water in the gas. When the heat-conducting fin 34 detaches from the sealing baffle, the condensed water drops to the bottom end of the cooling chamber. When the condensed water inside the cooling chamber enters the first drain pipe 40, since the drain hole is blocked by the plug 41, the condensed water accumulates inside the first drain pipe 40. When the liquid level inside the first drain pipe 40 exceeds the support frame, since the floating plate 42 is hollow inside, the floating plate 42 floats on the liquid surface. At the same time, the floating plate 42 drives the plug 41 to move. When the plug 41 detaches from the drain hole, the condensed water flows into the dehydration chamber. After the liquid after the first dehydration enters the dehydrating pipe 43, the gas flows along the spiral channel formed by the spiral plate 44 and the inner side of the dehydrating pipe 43. Since the spiral channel is arranged in a conical spiral shape, the water in the gas is dehydrated secondarily under the action of centrifugal force. At the same time, the first toothed ring 37 meshes with the second toothed ring 49, driving the second intake pipe 48 to rotate. When the second intake pipe 48 rotates, it drives the second fixed fan 50 to rotate, allowing external air to enter the dehydration chamber, cooling the gas inside the dehydrating pipe 43. Subsequently, the gas enters the gas storage tank 13 for standby. Through the first adsorption tower 11 and the second adsorption tower 12 for alternating pressure change, the hydrogen is purified, and the separated liquid drops into the second drain pipe 45. When the liquid level inside the second drain pipe 45 increases, the sliding plate 46 slides inside the second drain pipe 45. When the upper position of the sliding plate 46 exceeds the drain hole, the liquid flows into the bottom end of the dehydration chamber.

[0038] The above is only the specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present application can easily think of changes or substitutions, which should all be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A pressure swing adsorption hydrogen purification device, comprising a first adsorption tower (11), a second adsorption tower (12) and a processing box (14), wherein the first adsorption tower (11) and the second adsorption tower (12) are connected to each other, and the first adsorption tower (11) and the second adsorption tower (12) are connected to a gas storage tank (13), and a plurality of layered plates are arranged inside the processing box (14), characterized in that: A plurality of the layered plates divide the processing box (14) into a cleaning chamber, a heating chamber, a cooling chamber and a dehydration chamber. A filter drum (16) is rotatably provided inside the cleaning chamber. A heating box (31) is fixedly provided inside the heating chamber. A cooling pipe (33) is provided inside the cooling chamber. A dehydration pipe (43) is provided inside the dehydration chamber. The output end of the dehydration pipe (43) is communicated with the inside of the gas storage tank (13). A filter cloth (17) is fixedly provided on the outside of the filter drum (16). A partition plate (19) is rotatably provided at one end of the filter drum (16). The partition plate (19) is fixedly provided inside the cleaning chamber. A movable plate (20) is slidably provided on the filter drum (16). One end of the movable plate (20) is slidably arranged in a rectangular perforation on one side of the partition plate (19); a cleaning mechanism for cleaning the outside of the filter cloth (17) is provided inside the impurity removal chamber; a rotating tube is rotatably arranged at one end of the filter drum (16); the rotating tube is connected to one end of the spiral tube (30); the spiral tube (30) is fixedly arranged inside the heating box (31); a heating wire is provided inside the heating box (31); both ends of the cooling tube (33) are connected to a first air inlet pipe (35); a first dehydration mechanism for performing a first dehydration on the gas is provided inside the cooling chamber; a second dehydration mechanism for performing a second dehydration on the gas is provided inside the dehydration tube (43); The cleaning mechanism comprises a cleaning tube (23), a plurality of bristles are symmetrically arranged at the upper end of the cleaning tube (23), a spray hole is arranged at the upper end of the cleaning tube (23), a guide slide bar is symmetrically slidably arranged at one end of the cleaning tube (23), the guide slide bar is fixedly arranged inside the impurity removal chamber, the input end of the cleaning tube (23) is connected to one end of a hose, the other end of the hose is connected to the output end of a liquid pump (24), the liquid pump (24) is fixedly arranged outside the processing box (14), the input end of the liquid pump (24) is connected to the output end of an external liquid supply component, a fixing rod is fixedly arranged at the bottom end of the cleaning tube (23), both ends of the fixing rod are hinged with connecting rods (22), the connecting rod (22) ) are hingedly provided with a rotating seat at the other end, and the rotating seat is fixedly arranged on one side of the movable plate (20). One side of the movable plate (20) is fixedly connected to the output ends of two tension spring telescopic rods (21), respectively. The tension spring telescopic rods (21) are fixedly arranged inside the impurity removal chamber. A collecting box (25) is provided below the filter drum (16), and a filter plate (26) is provided inside the collecting box (25). The collecting box (25) is fixedly arranged at the bottom end of the impurity removal chamber. One end of the filter drum (16) is fixedly connected to the output end of the first motor (18), and the first motor (18) is fixedly arranged on the outside of the processing box (14). An air intake pipe (15) is connected to the impurity removal chamber.

2. A pressure swing adsorption hydrogen purification equipment according to claim 1, characterized in that: A water suction roller (27) is provided on one side of the cleaning tube (23), a squeezing roller is tightly mounted on the water suction roller (27), and the rotating shafts at both ends of the water suction roller (27) and the squeezing roller are rotatably mounted on a rotating frame, and the rotating frame is fixedly mounted on one side of the cleaning tube (23).

3. A pressure swing adsorption hydrogen purification equipment according to claim 2, characterized in that: A plurality of first magnets are arranged in a circular array on one side of the movable plate (20), and second magnets (29) are arranged at positions corresponding to the positions of the first magnets on one side of the partition plate (19). The first magnets and the second magnets (29) are attracted to each other. A mounting hole is arranged on the partition plate (19), and a squeeze sensor (28) is arranged in the mounting hole. The squeeze sensor (28) is electrically connected to the liquid pump (24).

4. A pressure swing adsorption hydrogen purification equipment according to claim 1, characterized in that: The first dehydration mechanism comprises an air distribution pipe (32), the input end of the air distribution pipe (32) being connected to the output end of the spiral tube (30), the air distribution pipe (32) being fixedly arranged at the top end of the cooling chamber, the bottom end of the air distribution pipe (32) being provided with a plurality of exhaust holes, the bottom end of the air distribution pipe (32) being arranged in an arc shape, a plurality of heat-conducting fins (34) being arranged in a circular array on the cooling pipe (33), a sealing baffle being fixedly arranged on one side of the air distribution pipe (32), the sealing baffle being arranged coaxially with the cooling pipe (33), fixing rings being arranged on the air distribution pipe (32) and at both ends of the heat-conducting fins (34), one end of the heat-conducting fin (34) being arranged in close contact with the bottom end of the air distribution pipe (32) and the inner side of the sealing baffle, and the other end of the heat-conducting fin (34) being arranged The cooling tube (33) extends to the interior of the cooling tube (33), and the two heat-conducting fins (34) are combined with the bottom end of the air distribution tube (32) and the inner side of the sealing baffle to form a closed chamber. A fixed baffle (39) is fixedly provided at the bottom end of the cooling chamber. The first air intake pipe (35) is rotatably arranged in the rotating holes on both sides of the processing box (14). The first air intake pipe (35) is fixedly provided with a first fixed fan (36). A first gear ring (37) is fixedly provided on the first air intake pipe (35). A gear is meshed on the first gear ring (37). The gear is fixedly provided on the output end of the second motor (38). The second motor (38) is fixedly provided on one side of the processing box (14). A drainage component is provided inside the cooling chamber to facilitate the discharge of condensed water.

5. A pressure swing adsorption hydrogen purification equipment according to claim 4, characterized in that: The drainage assembly comprises a first drainage pipe (40), the first drainage pipe (40) being fixedly arranged in a mounting hole at the bottom end of the cooling chamber, the cooling chamber being connected to the dehydration chamber through the first drainage pipe (40), a plug column (41) being slidably arranged in the drainage hole at the bottom end of the first drainage pipe (40), a support frame being slidably arranged on the plug column (41), the support frame being fixedly arranged inside the first drainage pipe (40), a floating plate (42) being fixedly arranged at one end of the plug column (41), the middle part of the floating plate (42) being hollow, and a counterweight ring being fixedly arranged at the upper end of the floating plate (42).

6. A pressure swing adsorption hydrogen purification equipment according to claim 5, characterized in that: The second dehydration mechanism comprises a spiral plate (44), the spiral plate (44) being fixedly arranged inside the dehydration pipe (43), the input end of the dehydration pipe (43) being connected to a fixed pipe, one end of the fixed pipe being connected to the interior of the cooling chamber, the spiral plate (44) being arranged in a conical spiral, the bottom end of the dehydration pipe (43) being connected to a second drainage pipe (45), a sliding plate (46) being slidably arranged inside the second drainage pipe (45), a sliding rod being fixedly arranged at the bottom end of the sliding plate (46), the sliding rod being slidably arranged in a sliding hole at the bottom end of the second drainage pipe (45), a tension spring (47) being arranged between one end of the sliding rod and the bottom end of the second drainage pipe (45), a plurality of drainage holes being arranged on the second drainage pipe (45) below the initial position of the sliding plate (46), and a drainage pipe being connected to the dehydration chamber.

7. A pressure swing adsorption hydrogen purification equipment according to claim 6, characterized in that: A rotating hole is provided at one side of the dehydration chamber, a second air inlet pipe (48) is rotatably provided in the rotating hole, a second fixed fan (50) is fixedly provided inside the second air inlet pipe (48), a second gear ring (49) is fixedly provided at one end of the second motor (38), and the second gear ring (49) is meshed with the first gear ring (37).

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