Pressure swing adsorption type hydrogen purification equipment

Abstract

The invention discloses pressure swing adsorption type hydrogen purification equipment, and relates to the technical field of hydrogen purification, the pressure swing adsorption type hydrogen purification equipment comprises a first adsorption tower, a second adsorption tower and a treatment box, the first adsorption tower and the second adsorption tower are both communicated with a gas storage tank, a filter drum is rotatably arranged in an impurity removal chamber, a heating box is fixedly arranged in a heating chamber, and the filter drum is communicated with the gas storage tank. A cooling pipe is arranged in the cooling chamber, a dewatering pipe is arranged in the dewatering chamber, the output end of the dewatering pipe is communicated with the interior of the gas storage tank, a first dewatering mechanism is arranged in the cooling chamber, and a second dewatering mechanism is arranged in the second liquid discharging pipe. According to the invention, the filtering drum, the heating box, the cooling pipe and the second liquid discharge pipe are arranged in the treatment box, so that impurity removal, heating and two-time dehydration of gas are facilitated, gas treatment is set in a centralized manner, a plurality of parts do not need to be controlled to be linked during use, only a small number of devices need to be controlled to work, and the cost is reduced. And gas treatment can be completed.

Description

Technical Field

[0001] The invention relates to the technical field of hydrogen purification, in particular to a pressure swing adsorption type 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 the air, purifying carbon dioxide from industrial tail gas rich in carbon dioxide, purifying carbon monoxide from mixed gases rich in carbon monoxide, and purifying hydrogen from various hydrogen-rich mixed gases. Among them, hydrogen is an important industrial gas with large demand and wide application range. Therefore, the research and development of pressure swing adsorption technology for purifying hydrogen is more in-depth. The pressure swing adsorption process consists of a series of adsorption steps, pressure reduction steps and desorption regeneration steps. The improvement of the pressure swing adsorption process is mainly achieved by optimizing the steps that constitute the pressure swing adsorption cycle and optimizing the combination of these steps.

[0003] Before purifying hydrogen, the mixed gas to be treated needs to be filtered to remove water and solid particle impurities in the mixed gas. However, when removing impurities from the gas, most existing hydrogen purification devices first dry and freeze the gas, and then filter the particle impurities in the gas. This method causes solid particles to mix with liquid in the gas when the gas passes through the drying and freezing components, so that the solid particles are assisted in the transmission pipeline, thereby affecting the transmission of the gas. When filtering solid particles, filter elements are mostly used for filtering, so that in actual use, the filter elements need to be replaced frequently, which makes it more cumbersome to use. In addition, when removing impurities from the gas, existing pressure swing adsorption purification equipment needs to use multiple devices to work, so that the equipment is not centralized during use, and multiple different devices need to be controlled separately for coordinated work.

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

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

[0006] To achieve the above object, the present invention provides the following technical solutions: A pressure swing adsorption hydrogen purification device comprises a first adsorption tower, a second adsorption tower and a processing box, wherein the first adsorption tower and the second adsorption tower are connected to each other, and the first adsorption tower and the second adsorption tower are connected to a gas storage tank, a plurality of layered plates are arranged inside the processing box, and the plurality of layered plates divide the processing box into a decontamination chamber, a heating chamber, a cooling chamber and a dehydration chamber, a filter drum is rotatably arranged inside the decontamination chamber, a heating box is fixedly arranged inside the heating chamber, a cooling pipe is arranged inside the cooling chamber, a dehydration pipe is arranged inside the dehydration chamber, an output end of the dehydration pipe is connected to the inside of the gas storage tank, a filter cloth is fixedly arranged outside the filter drum, and one end of the filter drum rotates A partition plate is movably provided, and the partition plate is fixedly provided inside the impurity removal chamber. A movable plate is slidably provided on the filter drum, and one end of the movable plate is slidably provided in a rectangular through-hole on one side of the partition plate. A cleaning mechanism for cleaning the outside of the filter cloth is provided inside the impurity removal chamber. A rotating tube is rotatably provided at one end of the filter drum, and the rotating tube is connected with one end of the spiral tube. The spiral tube is fixedly provided inside the heating box, and a heating wire is provided inside the heating box. A first air inlet pipe is connected at both ends of the cooling tube. A first dehydration mechanism for the cooling tube to perform the first dehydration on the gas is provided inside the cooling chamber, and a second dehydration mechanism for performing the second dehydration on the gas is provided inside the dehydration tube.

[0007] On the basis of the above technical solution, the present invention also provides the following optional technical solution: In an optional scheme: the cleaning mechanism includes a cleaning pipe, a plurality of bristles are symmetrically arranged on the upper end of the cleaning pipe, a spraying hole is arranged on the upper end of the cleaning pipe, a guide slide bar is symmetrically slidably arranged on one end of the cleaning pipe, the guide slide bar is fixedly arranged inside the impurity removal chamber, the cleaning pipe input end is connected with one end of the hose, the other end of the hose is connected with the output end of the liquid pump, the liquid pump is fixedly arranged on the outside of the processing box, the liquid pump input end is connected with the output end of the 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 a rotating seat is hinged at the other end of the connecting rod, the rotating seats are fixedly arranged on one side of the moving plate, one side of the moving plate is respectively 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 collecting box is arranged below the filter drum, a filter plate is arranged inside the collecting box, the collecting box is fixedly arranged at the bottom end of the impurity removal chamber, one end of the filter drum is fixedly connected with the output end of the first motor, the first motor is fixedly arranged on the outside of the processing box, and an air intake pipe is connected on the impurity removal chamber.

[0008] In an optional solution: a water suction roller is provided on one side of the cleaning tube, a squeezing roller is tightly provided on the water suction roller, and the rotating shafts at both ends of the water suction roller and the squeezing roller are rotatably provided on a rotating frame, and the rotating frame is fixedly provided on one side of the cleaning tube.

[0009] In an optional solution: a plurality of first magnets are provided in a circular array on one side of the movable plate, second magnets are provided at positions corresponding to the positions of the first magnets on one side of the partition plate, the first magnets and the second magnets are attracted to each other, a mounting hole is provided on the partition plate, an extrusion sensor is provided in the mounting hole, and the extrusion sensor is electrically connected to the liquid pump.

[0010] In an optional solution: the first dehydration mechanism includes an air distribution pipe, the air distribution pipe input end is connected to the spiral pipe output end, the air distribution pipe is fixedly arranged at the top of the cooling chamber, the bottom end of the air distribution pipe is provided with a plurality of exhaust holes, the bottom end of the air distribution pipe is arranged in an arc shape, a plurality of heat-conducting fins are arranged in a circular array on the cooling pipe, a sealing baffle is fixedly arranged on one side of the air distribution pipe, the sealing baffle is arranged coaxially with the cooling pipe, a fixing ring is arranged on the air distribution pipe and at both ends of the heat-conducting fin, one end of the heat-conducting fin is arranged tightly against the bottom end of the air distribution pipe and the inner side of the sealing baffle, and the heat-conducting fin The other end extends to the interior of the cooling pipe, and the two heat-conducting fins are combined with the bottom end of the air distribution pipe and the inner side of the sealing baffle to form a closed chamber. A fixed baffle is fixedly arranged at the bottom end of the cooling chamber, and the first air intake pipe is rotatably arranged in the rotating holes on both sides of the processing box. A first fixed fan is fixedly arranged inside the first air intake pipe, and a first gear ring is fixedly arranged on the first air intake pipe, and a gear is meshed on the first gear ring. The gear is fixedly arranged on the output end of the second motor, and the second motor is fixedly arranged on one side of the processing box. A drainage component is provided inside the cooling chamber to facilitate the discharge of condensed water.

[0011] In an optional scheme: the drainage assembly includes a first drainage pipe, the first drainage pipe is fixed in the mounting hole at the bottom end of the cooling chamber, the cooling chamber is connected with the dehydration chamber through the first drainage pipe, a plug is slidably provided in the drainage hole at the bottom end of the first drainage pipe, a support frame is slidably provided on the plug, the support frame is fixed inside the first drainage pipe, a floating plate is fixed at one end of the plug, the middle part of the floating plate is hollow, and a counterweight ring is fixed at the upper end of the floating plate.

[0012] In an optional scheme: the second dehydration mechanism includes a spiral plate, which is fixedly arranged inside the dehydration pipe; the input end of the dehydration pipe is connected to a fixed pipe, one end of the fixed pipe is connected to the inside of the cooling chamber, a spiral plate is fixedly arranged inside the dehydration pipe, and the spiral plate is arranged in a conical spiral shape; the bottom end of the dehydration pipe is connected to a second drain pipe, a sliding plate is slidably arranged inside the second drain pipe, a sliding rod is fixedly arranged at the bottom end of the sliding plate, the sliding rod is slidably arranged in a sliding hole at the bottom end of the second drain pipe, a tension spring is arranged between one end of the sliding rod and the bottom end of the second drain pipe, a plurality of drainage holes are arranged on the second drain pipe below the initial position of the sliding plate, and a drain pipe is connected to the dehydration chamber.

[0013] In an optional solution: a rotating hole is provided on one side of the dehydration chamber, a second air inlet pipe is rotatably provided in the rotating hole, a second fixed fan is fixedly provided inside the second air inlet pipe, a second gear ring is fixedly provided at one end of the second motor, and the second gear ring is meshed with the first gear ring.

[0014] Compared with the prior art, the present invention has the following beneficial effects: The present invention arranges a filter drum, a heating box, a cooling pipe and a second drainage pipe inside the processing box, so that it is convenient to remove impurities, heat and dehydrate the gas twice, so that the gas processing is centrally arranged. When in use, there is no need to control multiple components separately for linkage. Only a small number of devices need to be controlled to work to complete the gas processing, and the outside of the filter cloth is cleaned by a cleaning mechanism to reduce the adhesion of solid impurities in the transmission pipeline. The present invention has a simple structure, and can complete impurities removal and dehydration by utilizing the flow of gas, and can also utilize the flow of gas to trigger the cleaning mechanism, thereby increasing the practicality of the pressure swing adsorption hydrogen purification equipment. At the same time, a plug is slidably arranged in the drainage hole at the bottom end of the first drainage pipe, a floating plate is arranged at one end of the plug, a sliding plate is slidably arranged in the second drainage pipe, and a tension spring is arranged at the bottom end of the second drainage pipe, so that when discharging condensed water, condensed water can be used for sealing to prevent gas from being discharged to the outside of the processing box. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the present invention.

[0016] Figure 2 This is a schematic diagram of the internal structure of the processing box of the present invention.

[0017] Figure 3 It is a schematic diagram of the structure of the filter drum of the present invention.

[0018] Figure 4 It is a schematic diagram of the structure of the partition plate and the movable plate of the present invention.

[0019] Figure 5 It is a schematic diagram of the heating box structure of the present invention.

[0020] Figure 6 This is a schematic diagram of the installation of the first fixed fan and the second fixed fan of the present invention.

[0021] Figure 7 It is a schematic diagram of the cooling tube structure of the present invention.

[0022] Figure 8 It is a schematic diagram of the spiral plate structure of the present invention.

[0023] Notes on figure numbers: 11 first adsorption tower, 12 second adsorption tower, 13 air storage tank, 14 processing box, 15 air inlet pipe, 16 filter drum, 17 filter cloth, 18 first motor, 19 partition plate, 20 movable plate, 21 tension spring telescopic rod, 22 connecting rod, 23 cleaning pipe, 24 liquid pump, 25 collecting box, 26 filter plate, 27 water absorption roller, 28 extrusion sensor, 29 second magnet, 30 spiral tube, 31 heating box, 32 air distribution pipe, 33 cooling pipe, 34 heat conducting fin, 35 first air inlet pipe, 36 first fixed fan, 37 first gear ring, 38 second motor, 39 fixed baffle, 40 first drainage pipe, 41 plug column, 42 floating plate, 43 dehydration pipe, 44 spiral plate, 45 second drainage pipe, 46 sliding plate, 47 tension spring, 48 second air inlet pipe, 49 second gear ring, 50 second fixed fan. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0025] In one embodiment, Figure 1-Figure 8 As shown, a pressure swing adsorption hydrogen purification equipment comprises 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, a plurality of layered plates are arranged inside the processing box 14, and the plurality of layered plates divide the processing box 14 into a decontamination chamber, a heating chamber, a cooling chamber and a dehydration chamber, a filter drum 16 is rotatably arranged inside the decontamination chamber, a heating box 31 is fixedly arranged inside the heating chamber, a cooling pipe 33 is arranged inside the cooling chamber, a dehydration pipe 43 is arranged inside the dehydration chamber, and an output end of the dehydration pipe 43 is connected to the inside of the gas storage tank 13, a filter cloth 17 is fixedly arranged on the outside of the filter drum 16, a partition plate 19 is rotatably arranged at one end of the filter drum 16, and the partition plate 19 is fixedly arranged inside the decontamination chamber, A movable plate 20 is slidably provided on the filter drum 16, and one end of the movable plate 20 is slidably provided 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 provided at one end of the filter drum 16, and the rotating tube is communicated with one end of the spiral tube 30. The spiral tube 30 is fixedly provided inside the heating box 31, and a heating wire is provided inside the heating box 31. Both ends of the cooling tube 33 are communicated with a first air inlet pipe 35. A first dehydration mechanism for the cooling tube 33 to perform a first dehydration on the gas is provided inside the cooling chamber, and a second dehydration mechanism for performing a second dehydration on the gas is provided inside the dehydration tube 43. The cleaning mechanism facilitates the cleaning of impurities adsorbed on the outside of the filter cloth 17. The first dehydration mechanism facilitates the first dehydration of the gas, and the second dehydration mechanism facilitates the second dehydration of the gas. 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 internal gas pushes the moving plate 20 to move during impurity removal. When the moving plate 20 moves, 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.

[0026] A suction roller 27 is provided on one side of the cleaning tube 23, and a squeezing roller is tightly pressed on the suction roller 27. The rotating shafts at both ends of the suction roller 27 and the squeezing roller are rotatably arranged on a rotating frame, and the rotating frame is fixedly arranged on one side of the cleaning tube 23. When in use, when the cleaning tube 23 moves, the cleaning tube 23 drives the suction roller 27 and the squeezing roller to move, so that the suction roller 27 is in close contact with the outer side of the filter cloth 17. After the cleaning tube 23 cleans the filter cloth 17, the suction roller 27 can absorb the excess cleaning liquid on the filter cloth 17. At the same time, the suction roller 27 is in close contact with the filter cloth 17 so that the suction roller 27 rotates, and the squeezing roller can squeeze out the excess cleaning liquid inside the suction 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.

[0027] A plurality of first magnets are provided in a circular array on one side of the movable plate 20, and a second magnet 29 is provided at a position corresponding to the position of the first magnet on one side of the partition plate 19. The first magnet and the second magnet 29 are attracted to each other. A mounting hole is provided on the partition plate 19, and a squeeze sensor 28 is provided in the mounting hole. The squeeze sensor 28 is electrically connected to the liquid pump 24. When in use, when the pressure inside the impurity removal chamber increases and causes the movable plate 20 to move, the movable plate 20 drives the plurality of first magnets to move. When the first magnet approaches the second magnet 29, the first magnet and the second magnet 29 are attracted to each other, so that the movable plate 20 is fixed. At the same time, the movable plate 20 squeezes the squeeze sensor 28. The squeeze sensor 28 is electrically connected to the external control component, so that the external control component controls the liquid pump 24 to start. When the outside of the filter cloth 17 is cleaned, the gas inside the impurity removal chamber no longer acts on the movable plate 20, so that the movable plate 20 returns to the initial position, and the liquid pump 24 stops.

[0028] The first dehydration mechanism includes an air distribution pipe 32, the input end of the air distribution pipe 32 is connected to the output end of the spiral tube 30, the air distribution pipe 32 is fixedly arranged at the top of the cooling chamber, the bottom end of the air distribution pipe 32 is provided with a plurality of exhaust holes, the bottom end of the air distribution pipe 32 is arranged in an arc shape, a plurality of heat-conducting fins 34 are arranged in a circular array on the cooling pipe 33, a sealing baffle is fixedly arranged on one side of the air distribution pipe 32, the sealing baffle is arranged coaxially with the cooling pipe 33, a fixing ring is arranged at both ends of the air distribution pipe 32 and the heat-conducting fins 34, and the heat-conducting fins 34 are arranged in a circular array on the cooling pipe 33. One end is tightly arranged 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 extends into the interior of the cooling pipe 33. The two heat-conducting fins 34 and the bottom end of the air distribution pipe 32 and the inner side of the sealing baffle are combined to form a closed chamber. A fixed baffle 39 is fixedly arranged at the bottom of the cooling chamber. The first air inlet pipe 35 is rotatably arranged in the rotating holes on both sides of the processing box 14. The first air inlet pipe 35 is fixedly provided with a first fixed fan 36. A first air inlet pipe 35 is fixedly provided with a first gear ring 37. The first gear ring 37 is meshed with a The gear is fixed on the output end of the second motor 38, and the second motor 38 is fixed on one side of the processing box 14. When in use, after the impurity-removed gas enters the heating box 31 through the spiral tube 30, the heating wire inside the heating box 31 starts to work, so that the inside of the heating box 31 is heated, thereby heating the gas inside the spiral tube 30, and then the heated gas is discharged through the gas distribution pipe 32, so that the gas enters the closed chamber, and at the same time, the output end of the second motor 38 drives the gear to rotate, and the gear meshes with the first gear ring 37. The cooling tube 33 and the first air inlet tube 35 are combined to rotate. When the first air inlet tube 35 rotates, the first fixed fan 36 is driven to rotate, so that external air enters the cooling tube 33. Since the cross-sectional diameter of the cooling tube 33 is smaller than the cross-sectional diameter of the first air inlet tube 35, the air flow speed in the middle of the cooling tube 33 is increased, so that the heated air is cooled, thereby condensing the water in the gas. When the heat conducting fins 34 are separated from the sealing baffle, the condensed water falls to the bottom of the cooling chamber. A drainage component is provided inside the cooling chamber to facilitate the discharge of the condensed water.

[0029] The drainage assembly includes a first drainage pipe 40, which is fixed in a mounting hole at the bottom end of the cooling chamber. The cooling chamber is connected to the dehydration chamber through the first drainage pipe 40. A plug 41 is slidably provided in the drainage hole at the bottom end of the first drainage pipe 40. A support frame is slidably provided on the plug 41. The support frame is fixedly provided inside the first drainage pipe 40. A floating plate 42 is fixedly provided at one end of the plug 41. The middle part of the floating plate 42 is hollow. A counterweight ring is fixedly provided at the upper end of the floating plate 42. When in use, when condensed water inside the cooling chamber enters the first drainage pipe 40, the drainage hole is blocked by the plug 41, so that the condensed water gathers inside the first drainage pipe 40. When the liquid level inside the first drainage pipe 40 exceeds the support frame, the floating plate 42 floats on the liquid surface because the inside of the floating plate 42 is hollow. At the same time, the floating plate 42 drives the plug 41 to move. When the plug 41 is separated from the drainage hole, the condensed water flows into the dehydration chamber.

[0030] The second dehydration mechanism includes a spiral plate 44, which is fixedly arranged inside the dehydration pipe 43. The input end of the dehydration pipe 43 is connected to a fixed pipe, one end of the fixed pipe is connected to the inside of the cooling chamber, the dehydration pipe 43 is fixedly provided with a spiral plate 44, and the spiral plate 44 is arranged in a conical spiral. The bottom end of the dehydration pipe 43 is connected to a second drainage pipe 45, and a sliding plate 46 is slidably arranged inside the second 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 a sliding hole at the bottom end of the second drainage pipe 45. A tension spring 47 is arranged between one end of the sliding rod and the bottom end of the second drainage pipe 45. A plurality of drainage holes are arranged on the second drainage pipe 45 below the initial position of the sliding plate 46. The dehydration chamber is connected to a drain pipe. When in use, when the liquid after the first dehydration enters the dehydration pipe After entering the interior of 43, the gas flows along the spiral channel formed by the spiral plate 44 and the inner side of the dehydration pipe 43. Since the spiral channel is arranged in a conical spiral, the water in the gas is dehydrated for a second time under the action of centrifugal force. Then the gas enters the gas storage tank 13 for standby, and is alternately pressurized by the first adsorption tower 11 and the second adsorption tower 12 to purify the hydrogen, and the separated liquid falls into the second drainage pipe 45. When the liquid level in the second drainage pipe 45 increases, the sliding plate 46 slides in the second drainage pipe 45. When the upper end position of the sliding plate 46 exceeds the drainage hole, the liquid flows into the bottom of the dehydration chamber. It is worth noting that the first adsorption tower 11, the second adsorption tower 12 and the gas storage tank 13 in the present application are all conventional components, and the technology is relatively mature. They are not explained in detail in the present application, and the specific structure and working principle are not repeated here.

[0031] 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.

[0032] 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 internal gas pushes the moving plate 20 to move during impurity removal. When the moving plate 20 moves, the cleaning pipe 23 is driven 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. After the impurity-free gas enters the heating box 31 through the spiral tube 30, the heating wire inside the heating box 31 starts to work, so that the inside of the heating box 31 is heated, thereby heating the gas inside the spiral tube 30. Then the heated gas is discharged through the air distribution pipe 32, so that the gas enters the closed chamber. At the same time, the output end of the second motor 38 drives the gear to rotate, and the gear is engaged with the first gear ring 37, so that the cooling tube 33 and the first air intake pipe 35 are driven to rotate. When the first air intake pipe 35 rotates, it drives the first fixed fan 36 to rotate, so that the external air The cooling fin 33 is cooled by the heat transfer fin 34, and the cooling fin 33 is cooled by the heat transfer fin 34. The cooling fin 34 is cooled by the heat transfer fin 34, and the water in the air is condensed. When the heat transfer fin 34 is separated from the sealing baffle, the condensed water falls to the bottom of the cooling chamber. When the condensed water in the cooling chamber enters the first drain pipe 40, the drain hole is blocked by the plug 41, so that the condensed water gathers in the first drain pipe 40. When the liquid level in the first drain pipe 40 exceeds the support frame, the floating The interior of the plate 42 is hollow, so that the floating plate 42 floats on the liquid surface, and the floating plate 42 drives the plug 41 to move. When the plug 41 is separated from the drain hole, the condensed water flows into the dehydration chamber. After the liquid after the first dehydration enters the dehydration pipe 43, the gas flows along the spiral channel formed by the spiral plate 44 and the inner side of the dehydration pipe 43. Since the spiral channel is arranged in a conical spiral, the water in the gas is dehydrated for a second time under the action of centrifugal force. At the same time, the first gear ring 37 is meshed with the second gear ring 49, so that the second air inlet pipe 48 is driven to rotate, and the first gear ring 37 is meshed with the second gear ring 49. When the second air inlet pipe 48 rotates, it drives the second fixed fan 50 to rotate, so that external air enters the dehydration chamber, so that the gas inside the dehydration pipe 43 is cooled, and then the gas enters the gas storage tank 13 for standby, and is alternately pressurized by the first adsorption tower 11 and the second adsorption tower 12 to purify the hydrogen, and the separated liquid falls into the second drain pipe 45. When the liquid level in the second drain pipe 45 increases, the sliding plate 46 slides inside the second drain pipe 45. When the upper end of the sliding plate 46 exceeds the drain hole, the liquid flows into the bottom of the dehydration chamber.

[0033] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on 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). The movable plate (20) one end is slidably arranged in a rectangular through-hole on one side of the partition plate (19), a cleaning mechanism for cleaning the outside of the filter cloth (17) is arranged 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 arranged 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 the cooling tube (33) to perform a first dehydration on the gas is arranged inside the cooling chamber, and a second dehydration mechanism for performing a second dehydration on the gas is arranged 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) is connected to a fixed pipe, one end of the fixed pipe is connected to the inside of the cooling chamber; the spiral plate (44) is fixedly arranged inside the dehydration pipe (43), the spiral plate (44) is arranged in a conical spiral shape; the bottom end of the dehydration pipe (43) is connected to a second drainage pipe (45); a sliding plate (46) is slidably arranged inside the second drainage pipe (45); a sliding rod is fixedly arranged at the bottom end of the sliding plate (46), the sliding rod is slidably arranged in a sliding hole at the bottom end of the second drainage pipe (45); a tension spring (47) is arranged between one end of the sliding rod and the bottom end of the second drainage pipe (45); a plurality of drainage holes are arranged on the second drainage pipe (45) below the initial position of the sliding plate (46); and a drainage pipe is 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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