A kind of adsorption filtration device for hydrogen purification

Abstract

This invention belongs to the field of hydrogen purification technology, specifically an adsorption and filtration device for hydrogen purification, including a device base; a first purification box is fixedly connected to the top of the device base; an air inlet pipe is fixedly connected to the outside of the first purification box; by pulling out two push-pull boxes from the first and second purification boxes respectively, and then pulling out two sliding plates from the push-pull boxes, the used solid adsorbent can be quickly discharged. Subsequently, the bottom of multiple storage cylinders is sealed with the filter screen plate below, and new solid adsorbent is added into the multiple storage cylinders. With the filter screen plate above sealing the top of the multiple storage cylinders, the two push-pull boxes are pushed back into the first and second purification boxes, which can quickly replace the solid adsorbent, thereby reducing the losses caused by device downtime. By pressurizing the detection chamber of the sealing rubber, the sealing status at the push-pull box is determined by checking the pressure change in the detection chamber.

Description

Technical Field

[0001] The invention belongs to the technical field of hydrogen purification, in particular to an adsorption and filtering device for hydrogen purification. Background Art

[0002] Hydrogen purification technology is an indispensable part of modern industry. It is mainly used to promote the use of clean energy and improve the efficiency of chemical processes. It plays a vital role. Hydrogen purification is the application of pressure swing adsorption separation technology in hydrogen purification equipment.

[0003] A Chinese patent with publication number CN217188722U discloses a pressure swing adsorption device for hydrogen purification, including a pressure swing adsorption tower, a hydrogen purification tower, a mounting net, a metal palladium block layer, a sliding net, and a uniform distribution plate. This application can judge the amount of hydrogen adsorbed by the metal palladium block layer through the detector set up. When the gas flows into the hydrogen purification tower, the uniform distribution plate forces the hydrogen to flow out from the openings of the uniform distribution plate, thereby improving the adsorption effect.

[0004] The above-mentioned hydrogen purification adsorption device mainly relies on setting up a detector to judge the amount of hydrogen absorbed by the metal palladium block layer, so as to improve the adsorption effect. At present, the adsorption and filtration devices for hydrogen purification will add solid adsorbents for purification. The activity of the solid adsorbents gradually decreases after repeated use, resulting in a decrease in the adsorption capacity of the solid adsorbents. However, it is difficult to quickly replace the solid adsorbents in the adsorption and filtration devices for hydrogen purification, which causes the machine to be shut down for a long time and reduces production capacity.

[0005] To this end, the present invention provides an adsorption filtration device for purifying hydrogen. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve its technical problems is: an adsorption and filtration device for purifying hydrogen described in the present invention comprises a device base; a No. 1 purification box is fixedly connected to the top of the device base; an air intake pipe is fixedly connected to the outside of the No. 1 purification box; a No. 2 purification box is fixedly connected to the top of the device base and away from the No. 1 purification box; a gas storage pipe is fixedly connected to the outside of the No. 2 purification box and away from the No. 1 purification box; an exchange pipe rack is installed between the No. 1 purification box and the No. 2 purification box; the outsides of the No. 1 purification box and the No. 2 purification box are both fixedly connected to exhaust pipes; the interiors of the No. 1 purification box and the No. 2 purification box are both slidably connected to push-pull boxes; the interiors of the push-pull boxes are provided with an adsorption and filtration mechanism, which is used to purify hydrogen.

[0008] Preferably, the adsorption and filtering mechanism includes a fixed frame, a storage cylinder and a matching component; a plurality of the fixed frames are fixedly connected to the inner wall of the push-pull box; a plurality of the storage cylinders are fixedly connected to the outside of the fixed frames, and a plurality of air holes are opened on the outside of the storage cylinders; the matching component is arranged on the inner wall of the push-pull box, and the matching component is used to close the top and bottom ends of the storage cylinders.

[0009] Preferably, the mating component includes a sliding plate, a filter screen plate and an arc-shaped insert rod; the two sliding plates are symmetrically slidably connected to the inner wall of the push-pull box; the filter screen plate is fixed to the outside of the sliding plate, and the filter screen plate fits the surface of the storage cylinder; a plurality of limiting holes are opened on the outside of the sliding plate; and a plurality of the arc-shaped insert rods are inserted into the limiting holes of the sliding plate through a No. 1 elastic member.

[0010] Preferably, a compressor is fixedly connected to the top of the base of the device and located between purification box No. 1 and purification box No. 2; two pressurized pipes are fixedly connected to the top of the compressor, and the two pressurized pipes are respectively connected to purification box No. 1 and purification box No. 2; sealing rubbers are fixedly connected to the outsides of purification box No. 1 and purification box No. 2, and a detection cavity is opened inside the sealing rubber, and the sealing rubber is located at the push-pull box; pressure-conducting pipes are fixedly connected to the outsides of the two pressurized pipes, and the pressurized pipes are connected to the detection cavity of the sealing rubber through the pressure-conducting pipes.

[0011] Preferably, a heater is installed inside the bottom end of the No. 1 purification box and the No. 2 purification box; a No. 1 solenoid valve is fixedly connected inside the No. 1 purification box and the No. 2 purification box and above the heater; a cooler is installed inside the top end of the No. 1 purification box and the No. 2 purification box; a No. 2 solenoid valve is fixedly connected inside the No. 1 purification box and the No. 2 purification box and below the cooler.

[0012] Preferably, the exteriors of the No. 1 purification box and the No. 2 purification box are both fixedly connected with recovery boxes; the recovery boxes are located below the push-pull box.

[0013] Preferably, a heat pipe is fixedly connected to the bottom end of the recovery box, and one end of the heat pipe away from the recovery box is connected to the interior of the No. 1 purification box; the end of the heat pipe away from the recovery box is located between the heater and the No. 1 solenoid valve.

[0014] Preferably, the interior of the No. 1 purification box and the No. 2 purification box are fixedly connected with fixing rods; the exterior of the fixing rods is slidably connected with sealing plates, which are attached to the ends of the recovery box and are located below the push-pull box.

[0015] Preferably, the interior of the No. 1 purification box and the No. 2 purification box are rotatably connected to two guide wheels, and the two guide wheels are located at the push-pull box; a pull rope is connected between the push-pull box and the sealing plate, and the pull rope is sleeved on the outside of the two guide wheels; the outside of the fixed rod is sleeved with a No. 2 elastic member.

[0016] Preferably, the recovery box is made of metal; a heat conducting plate is fixedly connected between the recovery box and the exhaust pipe.

[0017] The beneficial effects of the present invention are as follows:

[0018] 1. The adsorption and filtration device for purifying hydrogen described in the present invention can quickly discharge the used solid adsorbent by pulling out the two push-pull boxes from the interior of the No. 1 purification box and the No. 2 purification box respectively, and then extracting the two sliding plates from the push-pull boxes, and then using the lower filter screen to block the bottom ends of multiple storage cylinders, adding new solid adsorbents to the multiple storage cylinders, and cooperating with the upper filter screen to block the top ends of multiple storage cylinders, and pushing the two push-pull boxes into the interior of the No. 1 purification box and the No. 2 purification box again, so as to quickly replace the solid adsorbent, thereby reducing the loss caused by the shutdown of the device, and using sealing rubber to block the push-pull boxes after replacing the solid adsorbent to reduce the leakage of gas inside the No. 1 purification box, and at the same time pressurizing the detection cavity of the sealing rubber, and judging the sealing state of the push-pull boxes by checking the pressure change in the detection cavity, and relying on the cooperation of the heater and the cooler to adjust the temperature change, the efficiency of regeneration of the solid adsorbent is improved.

[0019] 2. The adsorption and filtration device for hydrogen purification described in the present invention is fixed at the lower position of the push-pull box by the recovery box set, and the recovery box collects the solid adsorbent after use, so as to recycle the old solid adsorbent. The recovery box is installed to the heater inside the No. 1 purification box through the heat conduction pipe, and part of the heat generated by the heater is introduced into the interior of the recovery box to heat and regenerate the solid adsorbent after use, so as to assist in the heating and screening of waste materials. The sealing plate is slid to the top of the recovery box for sealing, so as to improve the desorption effect of the solid adsorbent. At the same time, the interior of the No. 1 purification box is separated by the sealing plate, so that the solid adsorbent can be replaced without stopping the machine. The push-pull box and the sealing plate are connected by a pull rope. When the push-pull box is pulled out of the No. 1 purification box, the sealing plate slides in the opposite direction, so as to synchronously pull and control the sealing plate to seal the interior of the No. 1 purification box. The heat conduction plate is used to absorb part of the heat discharged to the outside and conduct it to the metal recovery box, so as to improve the desorption effect of the solid adsorbent after use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below in conjunction with the accompanying drawings.

[0021] Figure 1 is a stereogram of the present invention;

[0022] Figure 2 It is a structural schematic diagram of the exchange tube rack in the present invention;

[0023] Figure 3 It is a partial structural cross-sectional view of the No. 1 purification box in the present invention;

[0024] Figure 4 It is a schematic diagram of the structure of the heat conducting plate in the present invention;

[0025] Figure 5 It is a structural schematic diagram of the storage cylinder in the present invention.

[0026] In the figure: 1. Device base; 11. No. 1 purification box; 12. Inlet pipe; 13. No. 2 purification box; 14. Gas storage pipe; 15. Exchange pipe rack; 16. Exhaust pipe; 17. Push-pull box; 2. Fixed frame; 21. Storage cylinder; 3. Sliding plate; 31. Filter screen; 32. Arc-shaped plug rod; 4. Compressor; 41. Pressurizing pipe; 42. Sealing rubber; 43. Pressure pipe; 5. Heater; 51. No. 1 solenoid valve; 52. Cooler; 53. No. 2 solenoid valve; 6. Recovery box; 7. Heat transfer pipe; 8. Fixed rod; 81. Sealing plate; 9. Guide wheel; 91. Pull rope; 92. No. 2 elastic member; 93. Heat transfer plate. DETAILED DESCRIPTION

[0027] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0028] like Figures 1 to 5As shown, an adsorption filtration device for purifying hydrogen according to an embodiment of the present invention comprises a device base 1; a first purification box 11 is fixedly connected to the top of the device base 1; an air inlet pipe 12 is fixedly connected to the outside of the first purification box 11; a second purification box 13 is fixedly connected to the top of the device base 1 and away from the first purification box 11; a gas storage pipe 14 is fixedly connected to the outside of the second purification box 13 and away from the first purification box 11; an exchange pipe rack 15 is installed between the first purification box 11 and the second purification box 13; the outsides of the first purification box 11 and the second purification box 13 are connected to the air inlet pipe 12; the outsides of the first purification box 11 and the second purification box 13 are connected to the air inlet pipe 14; the outsides of the first purification box 11 and the second purification box 13 are connected to the air inlet pipe 15; the outsides of the first purification box 11 and the second purification box 13 are connected to the air inlet pipe 15; the outsides of the first purification box 11 and the second purification box 13 are connected to the air inlet pipe 16 ... The first purification box 11 and the second purification box 13 are fixedly connected with an exhaust pipe 16; the interiors of the first purification box 11 and the second purification box 13 are slidably connected with a push-pull box 17; the interiors of the push-pull box 17 are provided with an adsorption filtering mechanism, which is used to purify hydrogen; when using the adsorption filtering device to purify hydrogen, the top of the device base 1 is respectively installed with the first purification box 11 and the second purification box 13, and the first purification box 11 and the second purification box 13 can be operated alternately through the exchange pipe rack 15. First, the air inlet pipe 12 is connected to the air duct, and the gas is first injected into the first purification box 11 from the air inlet pipe 12, and the adsorption filtering mechanism is used to purify the hydrogen. The structure is installed on the push-pull box 17 and loaded with solid adsorbent. At this time, the interior of the No. 1 purification box 11 is pressurized, and the solid adsorbent selectively adsorbs the injected gas. Subsequently, part of the gas inside the No. 1 purification box 11 is exchanged through the exchange tube rack 15 and sent to the No. 2 purification box 13, and the interior of the No. 2 purification box 13 is pressurized, and the solid adsorbent inside the No. 2 purification box 13 adsorbs again. At this time, the exhaust pipe 16 is opened to reduce the pressure inside the No. 1 purification box 11, and the solid adsorbent inside the No. 1 purification box 11 is desorbed and discharged from the exhaust pipe 16. The interiors of the No. 1 purification box 11 and the No. 2 purification box 13 are exchanged. After the circulation and purification, the purified hydrogen is discharged from the gas storage pipe 14 into the storage tank for temporary storage. It should be noted that many pipelines on the device need to be installed with electric valves to control the opening and closing to achieve automation. When the solid adsorbent is used for a long time, the device is shut down first, and then the push-pull boxes 17 are pulled out from the inside of the No. 1 purification box 11 and the No. 2 purification box 13 respectively, and the solid adsorbent in the push-pull boxes 17 is directly replaced. Finally, the two push-pull boxes 17 are pushed into the interior of the No. 1 purification box 11 and the No. 2 purification box 13 respectively, which can play a role in quickly replacing the solid adsorbent and reduce the loss caused by the shutdown of the device.

[0029] The adsorption and filtration mechanism includes a fixed frame 2, a storage tube 21 and a matching component; multiple fixed frames 2 are fixedly connected to the inner wall of the push-pull box 17; multiple storage tubes 21 are fixedly connected to the outside of the fixed frame 2, and multiple air holes are opened on the outside of the storage tube 21; the matching component is arranged on the inner wall of the push-pull box 17, and the matching component is used to close the top and bottom ends of the storage tube 21; when the solid adsorbent is replaced, the push-pull box 17 is pulled out, and the matching component is pulled out from the inside of the push-pull box 17, and the used solid adsorbent falls from the inside of the multiple storage tubes 21 fixed on the fixed frame 2, and then the matching component is used to close the bottom end of the storage tube 21, and new solid adsorbent is added to the inside of the multiple storage tubes 21, and then the top end of the storage tube 21 is closed, and the push-pull box 17 is directly pushed into the inside of the No. 1 purification box 11 to complete the replacement. The multiple air holes on the storage tube 21 are used to assist the ventilation and adsorption of the solid adsorbent, which plays a role in rapid replacement of the solid adsorbent.

[0030] The matching components include a sliding plate 3, a filter screen plate 31 and an arc-shaped plug rod 32; the two sliding plates 3 are symmetrically slidably connected to the inner wall of the push-pull box 17; the filter screen plate 31 is fixedly connected to the outside of the sliding plate 3, and the filter screen plate 31 fits the surface of the storage cylinder 21; a plurality of limiting holes are opened on the outside of the sliding plate 3; a plurality of arc-shaped plug rods 32 are plugged into the limiting holes of the sliding plate 3 through a No. 1 elastic member; when adding solid adsorbent to the inside of the storage cylinder 21, the sliding plate 3 below the push-pull box 17 is first pushed into the inside of the push-pull box 17, and the filter screen plate 31 then fits the bottom ends of the plurality of storage cylinders 21 and slides to close them, and the sliding plate 3 is The plate 3 squeezes the arc-shaped plug rod 32 to slide into the push-pull box 17, and the No. 1 elastic member contracts and is stressed. When the arc-shaped plug rod 32 corresponds to the limiting hole, the No. 1 elastic member squeezes the arc-shaped plug rod 32 and inserts it into the limiting hole to fix the position of the sliding plate 3. The solid adsorbent is added to the interior of multiple storage tubes 21, and then the sliding plate 3 above the push-pull box 17 is pushed into the push-pull box 17. The filter screen plate 31 slides against the top of the multiple storage tubes 21 to close it. The sliding plate 3 is also fixed and limited by the arc-shaped plug rod 32 to seal the solid adsorbent. Then the push-pull box 17 is pushed into the interior of the No. 1 purification box 11 to start hydrogen purification.

[0031] A compressor 4 is fixedly connected to the top of the device base 1 and located between the No. 1 purification box 11 and the No. 2 purification box 13; two pressurized pipes 41 are fixedly connected to the top of the compressor 4, and the two pressurized pipes 41 are connected to the No. 1 purification box 11 and the No. 2 purification box 13 respectively; the outsides of the No. 1 purification box 11 and the No. 2 purification box 13 are fixedly connected with sealing rubber 42, and the inside of the sealing rubber 42 is provided with a detection cavity, and the sealing rubber 42 is located at the push-pull box 17; the outsides of the two pressurized pipes 41 are fixedly connected with a pressure pipe 43, and the pressure pipe 41 is connected to the pressure pipe 41 through the guide pipe. The pressure pipe 43 is connected to the detection cavity of the sealing rubber 42; when the solid adsorbent inside the No. 1 purification box 11 is adsorbed, the compressor 4 is used to increase the pressure inside the No. 1 purification box 11 through the pressure pipe 41, so that the solid adsorbent adsorbs part of the gas, and the sealing rubber 42 seals the push-pull box 17 after the solid adsorbent is replaced, thereby reducing the leakage of gas inside the No. 1 purification box 11. At the same time, the pressure pipe 43 is used to increase the pressure in the detection cavity of the sealing rubber 42, and the sealing state of the push-pull box 17 is judged by checking the pressure change in the detection cavity.

[0032] like Figures 1 to 3 As shown, a heater 5 is installed inside the bottom of the No. 1 purification box 11 and the No. 2 purification box 13; a No. 1 solenoid valve 51 is fixedly connected inside the No. 1 purification box 11 and the No. 2 purification box 13 and located above the heater 5; a cooler 52 is installed inside the top of the No. 1 purification box 11 and the No. 2 purification box 13; a No. 2 solenoid valve 53 is fixedly connected inside the No. 1 purification box 11 and the No. 2 purification box 13 and located below the cooler 52; when the solid adsorbent inside the No. 1 purification box 11 and the No. 2 purification box 13 is regenerated, the heating is used The heater 5 generates heat, and then the No. 1 solenoid valve 51 is opened, and the heat reaches the solid adsorbent. By utilizing the effect of temperature on physical adsorption equilibrium, the adsorption amount of the substance is reduced by increasing the temperature, so that the adsorbed components are separated from the surface of the adsorbent and discharged. After the discharge, the No. 1 solenoid valve 51 is closed, and the cooler 52 generates cold air, and then the No. 2 solenoid valve 53 is opened, and the cooling air is blown to the solid adsorbent to cool it down, thereby restoring the adsorption of the solid adsorbent. Increasing the temperature change under the premise of voltage change can improve the efficiency of regeneration of the solid adsorbent.

[0033] like Figures 1 to 4As shown, the outside of the No. 1 purification box 11 and the No. 2 purification box 13 are fixedly connected with a recovery box 6; the recovery box 6 is located below the push-pull box 17; when the solid adsorbent is replaced after being used for a long time, due to the high cost of the solid adsorbent, directly discarding the used solid adsorbent is likely to cause economic losses. The recovery box 6 is fixed at the bottom of the push-pull box 17, and after the bottom ends of the multiple storage tubes 21 are opened, the solid adsorbents inside the multiple storage tubes 21 fall into the internal temporary storage of the recovery box 6. When the new solid adsorbent is replaced, the push-pull box 17 is pushed into the No. 1 purification box 11 for use, and then the solid adsorbent temporarily stored in the recovery box 6 is screened, which plays a role in waste recycling.

[0034] A heat pipe 7 is fixedly connected to the bottom end of the recovery box 6, and the end of the heat pipe 7 away from the recovery box 6 is connected to the interior of the No. 1 purification box 11; the end of the heat pipe 7 away from the recovery box 6 is located between the heater 5 and the No. 1 solenoid valve 51; when the used solid adsorbent is recovered, the recovery box 6 is installed to connect the heater 5 inside the No. 1 purification box 11 through the heat pipe 7. The heater 5 generates heat when it works, and part of the heat can be introduced into the interior of the recovery box 6 through the heat pipe 7, so as to heat and regenerate the used solid adsorbent, so as to facilitate the screening of the solid adsorbent that can continue to be used, thereby playing a role in heating and assisting the screening of waste materials.

[0035] The interiors of the No. 1 purification box 11 and the No. 2 purification box 13 are both fixedly connected with fixed rods 8; the exterior of the fixed rods 8 is slidably connected with a sealing plate 81, which is attached to the end of the recovery box 6 and is located below the push-pull box 17; when the used solid adsorbent is heated, the sealing plate 81 is slid to the top of the recovery box 6 for sealing, so that the heat transmitted by the heat pipe 7 can be temporarily stored inside the recovery box 6, thereby improving the desorption effect of the solid adsorbent. At the same time, when the solid adsorbent inside the No. 1 purification box 11 is replaced without stopping the machine, the sealing plate 81 can be slid on the exterior of the fixed rod 8, and the sealing plate 81 can separate the interior of the No. 1 purification box 11, temporarily store part of the gas under the sealing plate 81, and quickly pull out the push-pull box 17 to replace the solid adsorbent. After the replacement, the sealing plate 81 can be pulled out, so that the solid adsorbent can be replaced without stopping the machine.

[0036] like Figures 1 to 4As shown, the interiors of the No. 1 purification box 11 and the No. 2 purification box 13 are both rotatably connected to two guide wheels 9, and the two guide wheels 9 are located at the push-pull box 17; a pull rope 91 is connected between the push-pull box 17 and the blocking plate 81, and the pull rope 91 is sleeved on the outside of the two guide wheels 9; the outside of the fixed rod 8 is sleeved with a No. 2 elastic member 92; when the solid adsorbent inside the No. 1 purification box 11 is replaced without stopping the machine, the push-pull box 17 is first pulled out of the interior of the No. 1 purification box 11, and the push-pull box 17 pulls the pull rope 91 connected to the The sealing plate 81 slides in the opposite direction, and the two guide wheels 9 guide the angle of the pull rope 91. The sealing plate 81 slides in the opposite direction into the interior of the No. 1 purification box 11 and separates and seals it. At this time, the No. 2 elastic member 92 is squeezed and contracted by the sealing plate 81. After the solid adsorbent inside the push-pull box 17 is replaced, the push-pull box 17 is assisted to be pushed into the interior of the No. 1 purification box 11. The No. 2 elastic member 92 elastically squeezes the sealing plate 81 to return to its original position on the recovery box 6 for sealing, thereby playing the role of synchronously pulling and controlling the sealing plate 81 to seal the interior of the No. 1 purification box 11.

[0037] The recycling box 6 is made of metal; a heat conducting plate 93 is fixedly connected between the recycling box 6 and the exhaust pipe 16; when the solid adsorbent is heated and desorbed, the desorbed components are discharged from the exhaust pipe 16 with heat, and the heat conducting plate 93 absorbs part of the heat discharged to the outside, and conducts part of the heat to the recycling box 6 made of metal. After the recycling box 6 is heated, the desorption effect of the used solid adsorbent is improved, thereby facilitating the subsequent screening and recovery of the used solid adsorbent.

[0038] Working process: When using the adsorption filtration device to purify hydrogen, the top of the device base 1 is respectively installed with a No. 1 purification box 11 and a No. 2 purification box 13. The No. 1 purification box 11 and the No. 2 purification box 13 can be operated alternately through the exchange tube rack 15. First, the air intake pipe 12 is connected to the air duct, and the gas is first injected into the No. 1 purification box 11 through the air intake pipe 12. The adsorption filtration mechanism is installed on the push-pull box 17 and loaded with solid adsorbent. At this time, the interior of the No. 1 purification box 11 is pressurized, and the solid adsorbent selectively adsorbs the injected gas. Subsequently, part of the gas inside the No. 1 purification box 11 is exchanged through the exchange tube rack 15 and sent to the No. 2 purification box 13. The interior of the No. 2 purification box 13 is pressurized, and the solid adsorbent inside the No. 2 purification box 13 absorbs the gas again. Attached, at this time, open the exhaust pipe 16 to reduce the pressure inside the No. 1 purification box 11, and the solid adsorbent inside the No. 1 purification box 11 is desorbed and discharged from the exhaust pipe 16. After the interiors of the No. 1 purification box 11 and the No. 2 purification box 13 are alternately circulated and purified, the purified hydrogen is discharged from the gas storage pipe 14 into the storage tank for temporary storage. It should be noted that many pipelines on the device need to be installed with electric valves to control the opening and closing to achieve automation. When the solid adsorbent has been used for a long time, the device is shut down first, and then the push-pull boxes 17 are pulled out from the No. 1 purification box 11 and the No. 2 purification box 13 respectively, and the solid adsorbent in the push-pull boxes 17 is directly replaced. Finally, the two push-pull boxes 17 are pushed into the interiors of the No. 1 purification box 11 and the No. 2 purification box 13 respectively, so as to quickly replace the solid adsorbent. The function of replacement is to reduce the loss caused by the shutdown of the device; when the solid adsorbent is replaced, the push-pull box 17 is pulled out, and the matching component is pulled out from the inside of the push-pull box 17, and the used solid adsorbent falls from the inside of the multiple storage tubes 21 fixed on the fixed frame 2, and then the matching component is used to close the bottom end of the storage tube 21, and the new solid adsorbent is added to the inside of the multiple storage tubes 21, and then the top end of the storage tube 21 is closed, and the push-pull box 17 is directly pushed into the inside of the No. 1 purification box 11 to complete the replacement. The multiple air holes on the storage tube 21 are used to assist the ventilation and adsorption of the solid adsorbent, which plays a role in quickly replacing the solid adsorbent; when adding solid adsorbent to the inside of the storage tube 21, first push the sliding plate 3 under the push-pull box 17 After the push-pull box 17 is put into the push-pull box 17, the filter screen plate 31 slides with the bottom ends of the multiple storage tubes 21 to close it, and the sliding plate 3 squeezes the arc-shaped plug rod 32 to slide into the push-pull box 17. The No. 1 elastic member contracts and is stressed. When the arc-shaped plug rod 32 corresponds to the limiting hole, the No. 1 elastic member squeezes the arc-shaped plug rod 32 and inserts it into the limiting hole to fix the position of the sliding plate 3. The solid adsorbent is added into the multiple storage tubes 21, and then the sliding plate 3 above the push-pull box 17 is pushed into the push-pull box 17. The filter screen plate 31 slides with the top ends of the multiple storage tubes 21 to close it. Similarly, the sliding plate 3 is fixed and limited by the arc-shaped plug rod 32 to seal the solid adsorbent. Then the push-pull box 17 is pushed into the No. 1 purification box 11 to start hydrogen purification.

[0039] When the solid adsorbent inside the No. 1 purification box 11 is adsorbed, the compressor 4 is used to increase the pressure inside the No. 1 purification box 11 through the pressure pipe 41, so that the solid adsorbent adsorbs part of the gas, and the sealing rubber 42 is used to seal the push-pull box 17 after the solid adsorbent is replaced, so as to reduce the leakage of gas inside the No. 1 purification box 11. At the same time, the pressure pipe 43 is used to increase the pressure in the detection cavity of the sealing rubber 42, and the sealing state of the push-pull box 17 is judged by checking the pressure change in the detection cavity;

[0040] When the solid adsorbent inside the No. 1 purification box 11 and the No. 2 purification box 13 is regenerated, the heater 5 is used to generate heat, and then the No. 1 solenoid valve 51 is opened, and the heat reaches the solid adsorbent. By utilizing the effect of temperature on physical adsorption equilibrium, the adsorption amount of the substance is reduced by increasing the temperature, so that the adsorbed components are separated from the surface of the adsorbent and discharged. After the discharge is completed, the No. 1 solenoid valve 51 is closed, and the cooler 52 is operated to generate cold air, and then the No. 2 solenoid valve 53 is opened, and the cooling air is blown to the solid adsorbent to cool it down and restore the adsorption of the solid adsorbent. Increasing the temperature change under the premise of variable pressure can improve the efficiency of regenerating the solid adsorbent. When the solid adsorbent is replaced after a long period of use, due to the cost of the solid adsorbent, The recycling box 6 is fixed at the lower position of the push-pull box 17. After the bottom ends of the plurality of storage tubes 21 are opened, the solid adsorbents in the plurality of storage tubes 21 fall into the recycling box 6 for temporary storage. The new solid adsorbent is replaced and the push-pull box 17 is pushed into the No. 1 purification box 11 for use. Then, the solid adsorbent temporarily stored in the recycling box 6 is screened, which plays a role in waste recycling. When the used solid adsorbent is recovered, the recycling box 6 is used to install a heater 5 connected to the No. 1 purification box 11 through a heat pipe 7. The heater 5 generates heat when it works, and part of the heat can be introduced into the interior of the recycling box 6 through the heat pipe 7, so as to recycle the used solid adsorbent. Heating regeneration makes it easy to screen out solid adsorbents that can be used again, and plays a role in assisting the screening of waste materials by heating; when the used solid adsorbent is heated, the sealing plate 81 is used to slide to the top of the recovery box 6 for sealing, and the heat transmitted by the heat pipe 7 can be temporarily stored inside the recovery box 6, thereby improving the desorption effect of the solid adsorbent. At the same time, when the solid adsorbent inside the No. 1 purification box 11 is replaced without stopping the machine, the sealing plate 81 can be used to slide on the outside of the fixed rod 8, and the sealing plate 81 can separate the interior of the No. 1 purification box 11, and temporarily store part of the gas under the sealing plate 81, and quickly pull out the push-pull box 17 to replace the solid adsorbent. After the replacement, the sealing plate 81 can be pulled out, which can regenerate the solid adsorbent. The agent is replaced without stopping the machine; when the solid adsorbent inside the No. 1 purification box 11 is replaced without stopping, first pull the push-pull box 17 out of the No. 1 purification box 11, the push-pull box 17 pulls the sealing plate 81 connected to the pull rope 91 to slide in the opposite direction, the two guide wheels 9 guide the angle of the pull rope 91, and the sealing plate 81 slides in the opposite direction into the No. 1 purification box 11 and separates and blocks it. At this time, the No. 2 elastic member 92 is squeezed and contracted by the sealing plate 81. After the solid adsorbent inside the push-pull box 17 is replaced, the push-pull box 17 is assisted to be pushed into the No. 1 purification box 11. The No. 2 elastic member 92 elastically squeezes the sealing plate 81 to return to the recovery box 6 for sealing, which plays a role in synchronously pulling and controlling the sealing plate 81 to block the inside of the No. 1 purification box 11;

[0041] When the solid adsorbent is heated and desorbed, the desorbed components are discharged from the exhaust pipe 16 with the heat, and the heat conduction plate 93 absorbs part of the heat discharged to the outside, and conducts part of the heat to the metal recovery box 6. After the recovery box 6 is heated, the desorption effect of the used solid adsorbent is improved, thereby facilitating the subsequent screening and recovery of the used solid adsorbent.

[0042] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An adsorption filtration device for hydrogen purification, characterized in that: The device comprises a device base (1); a first purification box (11) is fixedly connected to the top of the device base (1); an air intake pipe (12) is fixedly connected to the outside of the first purification box (11); a second purification box (13) is fixedly connected to the top of the device base (1) and away from the first purification box (11); a gas storage pipe (14) is fixedly connected to the outside of the second purification box (13) and away from the first purification box (11); an exchange pipe rack (15) is installed between the first purification box (11) and the second purification box (13); an exhaust pipe (16) is fixedly connected to the outside of the first purification box (11) and the second purification box (13); a push-pull box (17) is slidably connected to the inside of the first purification box (11) and the second purification box (13); an adsorption filtering mechanism is arranged inside the push-pull box (17), and the adsorption filtering mechanism is used to purify hydrogen; The adsorption and filtering mechanism comprises a fixing frame (2), a storage cylinder (21) and a matching component; a plurality of the fixing frames (2) are fixedly connected to the inner wall of the push-pull box (17); a plurality of the storage cylinders (21) are fixedly connected to the outside of the fixing frames (2), and a plurality of air holes are provided on the outside of the storage cylinders (21); the matching component is arranged on the inner wall of the push-pull box (17), and is used to close the top and bottom ends of the storage cylinders (21); The first purification box (11) and the second purification box (13) are both fixedly connected to the outside with a recovery box (6); the recovery box (6) is located below the push-pull box (17); The interior of the No. 1 purification box (11) and the No. 2 purification box (13) are both fixedly connected with a fixing rod (8); the exterior of the fixing rod (8) is slidably connected with a blocking plate (81), the blocking plate (81) is attached to the end of the recovery box (6), and the blocking plate (81) is located below the push-pull box (17); The interior of the No. 1 purification box (11) and the No. 2 purification box (13) are both rotatably connected to two guide wheels (9), and the two guide wheels (9) are located at the push-pull box (17); a pull rope (91) is connected between the push-pull box (17) and the blocking plate (81), and the pull rope (91) is sleeved on the outside of the two guide wheels (9); the outside of the fixing rod (8) is sleeved with a No. 2 elastic member (92).

2. The adsorption filtration device for hydrogen purification according to claim 1, characterized in that: The mating assembly comprises a sliding plate (3), a filter screen plate (31) and an arc-shaped plug rod (32); the two sliding plates (3) are symmetrically slidably connected to the inner wall of the push-pull box (17); the filter screen plate (31) is fixed to the outside of the sliding plate (3), and the filter screen plate (31) fits the surface of the storage cylinder (21); a plurality of limiting holes are opened on the outside of the sliding plate (3); and a plurality of the arc-shaped plug rods (32) are plugged into the limiting holes of the sliding plate (3) through a No. 1 elastic member.

3. The adsorption filtration device for hydrogen purification according to claim 1, characterized in that: A compressor (4) is fixedly connected to the top of the device base (1) and located between the No. 1 purification box (11) and the No. 2 purification box (13); two pressurizing pipes (41) are fixedly connected to the top of the compressor (4), and the two pressurizing pipes (41) are respectively connected to the No. 1 purification box (11) and the No. 2 purification box (13); the outsides of the No. 1 purification box (11) and the No. 2 purification box (13) are fixedly connected to sealing rubber (42), and a detection cavity is opened inside the sealing rubber (42), and the sealing rubber (42) is located at the push-pull box (17); the outsides of the two pressurizing pipes (41) are fixedly connected to pressure-conducting pipes (43), and the pressurizing pipes (41) are connected to the detection cavity of the sealing rubber (42) through the pressure-conducting pipes (43).

4. The adsorption filtration device for hydrogen purification according to claim 2, characterized in that: A heater (5) is installed inside the bottom of the No. 1 purification box (11) and the No. 2 purification box (13); a No. 1 solenoid valve (51) is fixedly connected inside the No. 1 purification box (11) and the No. 2 purification box (13) and located above the heater (5); a cooler (52) is installed inside the top of the No. 1 purification box (11) and the No. 2 purification box (13); and a No. 2 solenoid valve (53) is fixedly connected inside the No. 1 purification box (11) and the No. 2 purification box (13) and located below the cooler (52).

5. The adsorption filtration device for hydrogen purification according to claim 1, characterized in that: A heat conducting pipe (7) is fixedly connected to the bottom end of the recovery box (6), and one end of the heat conducting pipe (7) away from the recovery box (6) is connected to the interior of the first purification box (11); and one end of the heat conducting pipe (7) away from the recovery box (6) is located between the heater (5) and the first solenoid valve (51).

6. The adsorption filtration device for hydrogen purification according to claim 1, characterized in that: The recovery box (6) is made of metal; a heat conducting plate (93) is fixedly connected between the recovery box (6) and the exhaust pipe (16).

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