Purification equipment with pressure protection for coke oven gas PSA (Pressure Swing Adsorption) hydrogen production

Abstract

The invention discloses coke oven gas PSA hydrogen production purification equipment with a pressure protection function, and relates to the technical field of PSA hydrogen production purification equipment.The coke oven gas PSA hydrogen production purification equipment comprises a base, a mounting plate is arranged at the top of the base, a vibration compaction mechanism is arranged between the top end of the base and the bottom end of the mounting plate, and the top end of the mounting plate is fixedly connected with a first adsorption tank and a second adsorption tank; according to the present invention, by arranging the speed reduction hindering mechanism and the discharge conduction mechanism, when the pressure sensor detects that the internal pressure of the first adsorption tank is too high, the hydrogen feeding speed is hindered and reduced, and the gas flow of the inlet gas is adjusted; meanwhile, part of impurity gas adsorbed in the first adsorption tank is driven to be released outwards, so that the pressure is reduced, the pressure balance is maintained, the pressure protection effect is achieved, damage to equipment due to too high pressure is avoided, and the operation safety of the equipment is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of PSA hydrogen production purification equipment, in particular to a coke oven gas PSA hydrogen production purification equipment with pressure protection. Background Art

[0002] The process of producing hydrogen from coke oven gas can be roughly divided into the following steps: fine purification, pretreatment, compression, PSA hydrogen extraction, deoxidation and drying, and product hydrogen storage and external supply. In the PSA hydrogen purification process, the device uses hydrogen-rich mixed gas as raw material, uses activated carbon, alumina, silica gel, molecular sieve and other adsorbents, adsorbs impurities under high pressure, desorbs and regenerates under low pressure, removes impurities through pressure changes, and thus purifies hydrogen.

[0003] At present, PSA hydrogen production and purification is mainly based on the difference in adsorption capacity of different gases on solid adsorbents. Gas separation and purification is achieved by changing pressure conditions. In the process of monitoring pressure changes, corresponding pressure regulation is required to achieve pressure protection. However, in the prior art, pressure relief is generally mainly carried out by relying on pressure relief valves, which is relatively slow and single, and is prone to pipe bursting or cracking, reducing the safety of PSA hydrogen production and purification. For this reason, the present invention proposes a coke oven gas PSA hydrogen production purification device with pressure protection. Summary of the invention

[0004] The purpose of the present invention is to make up for the deficiencies of the prior art and to provide a coke oven gas PSA hydrogen production purification device with pressure protection.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a purification device for coke oven gas PSA hydrogen production with pressure protection, comprising a base, a mounting plate is provided on the top of the base, and a vibration implementation mechanism is provided between the top of the base and the bottom of the mounting plate, the top of the mounting plate is respectively fixedly connected with a first adsorption tank and a second adsorption tank, and the first adsorption tank and the second adsorption tank are both provided with a feeding mechanism, an auxiliary vibration mechanism is provided between the outer wall of the first adsorption tank and the second adsorption tank and the top of the mounting plate, and the first adsorption tank and the second adsorption tank are both provided with a pressure sensor, an air guide pipe is fixedly connected between the first adsorption tank and the second adsorption tank, and the outer wall of the air guide pipe is fixedly connected with a first control valve, one end of the first adsorption tank is fixedly connected with an air intake pipe, and an obstruction and deceleration mechanism and a conduction and discharge mechanism are respectively provided between the air intake pipe and the top of the first adsorption tank, the top of the mounting plate is fixedly connected with a gas storage buffer tank through a pair of vertical plates, and a diversion gas storage mechanism is provided between the air intake pipe and the gas storage buffer tank, the top of the second adsorption tank is fixedly connected with an exhaust pipe, and the outer wall of the exhaust pipe is fixedly connected with a second control valve.

[0006] As a preferred solution of the present invention, a pair of the feeding mechanisms each include a feeding pipe, the bottom ends of the pair of the feeding pipes are respectively fixedly connected to the top ends of the first adsorption tank and the second adsorption tank, and the outer walls of the feeding pipes are fixedly connected to a third control valve, the interiors of the first adsorption tank and the second adsorption tank are each provided with an upper orifice plate in close contact with the inner wall thereof, and a telescopic tube is fixedly connected between the top end of the upper orifice plate and the bottom end of the feeding pipe, a pair of first electric telescopic rods are respectively fixedly connected between the top ends of the upper orifice plates and the inner top ends of the first adsorption tank and the second adsorption tank, and the first electric telescopic rods are fixedly connected to the pressure sensor, and the inner walls of the first adsorption tank and the second adsorption tank are both fixedly connected to a lower orifice plate.

[0007] As a preferred solution of the present invention, the vibration implementation mechanism includes a dual-axis motor fixedly connected to the top of the base, the top of the dual-axis motor is fixedly connected to a rotating rod, and the outer wall of the rotating rod is fixedly connected to a cam, the outer walls of a pair of the cams are in contact with the bottom end of the mounting plate, the bottom end of the mounting plate is fixedly connected to multiple pairs of sleeves, the top of the base is fixedly connected to multiple pairs of fixed rods, and the sleeves are sleeved on the outer walls of the fixed rods, the outer walls of the multiple pairs of fixed rods are sleeved with telescopic springs, and the two ends of the telescopic springs are respectively fixedly connected to the bottom end of the sleeve and the top of the base.

[0008] As a preferred solution of the present invention, the auxiliary vibration mechanism includes two pairs of side straight plates fixedly connected to the top of the base, a pair of side straight plates are fixedly connected to the opposite sides thereof with multiple pairs of T-shaped rods, and a movable sleeve plate is sleeved between the outer walls of a pair of T-shaped rods, and the ends of the multiple pairs of movable sleeve plates that are close to each other are fixedly connected with movable protruding rods, and one end of the movable protruding rods is respectively in contact with the outer walls of the first adsorption tank and the second adsorption tank, a spring sheet is fixedly connected between the movable sleeve plate and the side straight plates, and the outer walls of the first adsorption tank and the second adsorption tank are sleeved with multiple rings.

[0009] As a preferred scheme of the present invention, the speed reduction mechanism includes a second electric telescopic rod fixedly connected to the top end of the intake pipe, the top end of the second electric telescopic rod is fixedly connected to a lifting straight plate, and the bottom end of the lifting straight plate is fixedly connected to an extrusion rod, the top end of the intake pipe is fixedly connected to a top-connected straight cylinder, and a piston is slidably connected inside the top-connected straight cylinder, a circular hole is drilled at the top end of the top-connected straight cylinder, and the bottom end of the extrusion rod passes through the circular hole and is fixedly connected to the top end of the piston, an inner tube is fixedly connected between the top-connected straight cylinder and the intake pipe, and a pair of rubber sealing sheets are rotatably connected inside the inner tube, the bottom end of the inner tube is fixedly connected to an internal resistance sac, and the internal resistance sac is located in the intake pipe.

[0010] As a preferred solution of the present invention, the conductive discharge mechanism includes a release tube fixedly connected to the top of the first adsorption tank, and the inner wall of the release tube is provided with a sealing round block in close contact with the release tube, the outer wall of the release tube is fixedly connected to a side connection tube, and a rotating long rod is rotatably connected between the side connection tube and the release tube, one end of the rotating long rod is fixedly connected to the outer wall of the sealing round block, the outer wall of the rotating long rod is sleeved with a gear, and the outer wall of the gear is meshingly connected with a rack plate, and the bottom end of the rack plate is fixedly connected to the top of the lifting straight plate.

[0011] As a preferred scheme of the present invention, the diversion and air storage mechanism includes a fixed straight plate fixedly connected to the top of the base, one end of the fixed straight plate is rotatably connected to a pair of pulleys, and a transmission belt is transmission-connected between the pair of pulleys, the outer wall of the transmission belt is fixedly connected to a first L-shaped plate with one end of the lifting straight plate, and the outer wall of the transmission belt is fixedly connected to a second L-shaped plate, the bottom end of the second L-shaped plate is fixedly connected to a connecting rod, and the top of the air storage buffer tank is drilled with a through hole, the bottom end of the connecting rod passes through the through hole and is fixedly connected to a porous circular plate, the outer wall of the porous circular plate is in contact with the inner wall of the air storage buffer tank, and the bottom end of the porous circular plate is fixedly connected to a round blocking block, an embedded tube is fixedly connected between the bottom end of the air storage buffer tank and the top of the air intake pipe, and the outer wall of the round blocking block is in close contact with the inner wall of the embedded tube.

[0012] As a preferred solution of the present invention, an exhaust pipe is embedded in the outer wall of the gas storage buffer tank, an exhaust fan is fixedly connected to the outer wall of the gas storage buffer tank, and one end of the exhaust pipe is fixedly connected to one end of the exhaust fan, and an exhaust pipe is fixedly connected between the other end of the exhaust fan and the outer wall of the first adsorption tank.

[0013] As a preferred solution of the present invention, one end of the first L-shaped plate and the second L-shaped plate are fixedly connected to a sliding rod, one end of the fixed straight plate is formed with a pair of sliding grooves, and one end of the sliding rod is located in the sliding groove and slidably connected thereto.

[0014] Compared with the prior art, the coke oven gas PSA hydrogen production purification equipment with pressure protection has the following beneficial effects: 1. The present invention can drive the adsorbent to be added into the first adsorption tank and the second adsorption tank by setting up a feeding mechanism, a vibrating implementation mechanism and an auxiliary vibrating mechanism, and continuously vibrate during the adding process, so that the adsorbent is filled more compactly and evenly, avoiding the powdering phenomenon caused by incomplete filling when the adsorbent is added, thereby ensuring its feeding effect.

[0015] 2. The present invention, through the obstruction and deceleration mechanism and the conduction discharge mechanism, when the pressure sensor detects that the internal pressure of the first adsorption tank is too high, obstructs and reduces the speed of hydrogen feeding, adjusts the gas flow of the intake, and at the same time drives part of the impurity gas adsorbed in the first adsorption tank to be released to the outside, thereby reducing the pressure, maintaining the pressure balance, playing a role of pressure protection, avoiding damage to the equipment due to excessive pressure, and ensuring its operational safety.

[0016] 3. The present invention has a shunt gas storage mechanism, which can divert part of the hydrogen to the gas buffer tank for temporary storage when the pressure is too high, so as to alleviate the situation of excessive pressure. When the pressure is too low, the hydrogen inside the gas buffer tank is discharged into the first adsorption tank to supplement the hydrogen supply, maintain the normal operating pressure of PSA hydrogen production and purification, and further play a role in pressure protection.

[0017] Other advantages, objectives and features of the present invention will be set forth in part in the following description and, in part, will be apparent to those skilled in the art based on an examination of the following or may be taught from the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 It is a partial cross-sectional structural schematic diagram of the second adsorption tank and the feeding mechanism in the present invention; Figure 3 It is a partial cross-sectional structural schematic diagram of the mounting plate and the vibration implementation mechanism in the present invention; Figure 4 It is a partial cross-sectional structural schematic diagram of the auxiliary material vibration mechanism in the present invention; Figure 5 It is a schematic diagram of the partial cross-section structure of the feed pipe and the speed reduction blocking mechanism in the present invention; Figure 6 For the present invention Figure 5 The enlarged structural diagram at A in the middle; Figure 7 It is a partial cross-sectional structural schematic diagram of the conduction and discharge mechanism in the present invention; Figure 8 It is a partial cross-sectional structural schematic diagram of the gas storage buffer tank and the split flow gas storage mechanism in the present invention; Fig. 9 For the present invention Figure 8 The enlarged structural diagram at B in the middle; Fig.10 It is a partial three-dimensional structural schematic diagram of the first adsorption tank and the split flow gas storage mechanism in the present invention from another perspective.

[0019] In the figure: 1, base; 2, mounting plate; 3, first adsorption tank; 4, second adsorption tank; 5, air inlet pipe; 6, air guide pipe; 7, first control valve; 8, exhaust pipe; 9, second control valve; 10, feeding mechanism; 1001, feeding pipe; 1002, third control valve; 1003, telescopic pipe; 1004, upper orifice plate; 1005, lower orifice plate; 1006, first electric telescopic rod; 11, vibration implementation mechanism; 110 1. Double-axis motor; 1102. Rotating rod; 1103. Cam; 1104. Sleeve; 1105. Fixed rod; 1106. Telescopic spring; 12. Auxiliary vibration mechanism; 1201. Side straight plate; 1202. T-shaped rod; 1203. Moving sleeve plate; 1204. Spring sheet; 1205. Active convex rod; 1206. Ring; 13. Obstruction deceleration mechanism; 1301. Second electric telescopic rod; 1302. Lifting straight plate; 1303, top-connected straight cylinder; 1304, piston; 1305, extrusion rod; 1306, built-in tube; 1307, rubber sealing sheet; 1308, internal resistance capsule; 14, conduction discharge mechanism; 1401, release tube; 1402, sealing round block; 1403, side-connected cylinder; 1404, rotating long rod; 1405, gear; 1406, rack plate; 15, gas storage buffer tank; 16, split gas storage mechanism; 1601. Fixed straight plate; 1602. Pulley; 1603. Transmission belt; 1604. First L-shaped plate; 1605. Second L-shaped plate; 1606. Connecting rod; 1607. Perforated circular plate; 1608. Embedded tube; 1609. Round blocking block; 16010. Vacuum pump; 16011. Vacuum pipe; 16012. Exhaust pipe; 16013. Sliding rod; 16014. Slide groove; 17. Pressure sensor. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 and Fig.10As shown, the present invention provides a technical solution: a coke oven gas PSA hydrogen production purification device with pressure protection, comprising a base 1, a mounting plate 2 is provided on the top of the base 1, and a vibration implementation mechanism 11 is provided between the top of the base 1 and the bottom of the mounting plate 2, a first adsorption tank 3 and a second adsorption tank 4 are respectively fixedly connected to the top of the mounting plate 2, and a feeding mechanism 10 is provided inside the first adsorption tank 3 and the second adsorption tank 4, an auxiliary vibration mechanism 12 is provided between the outer wall of the first adsorption tank 3 and the second adsorption tank 4 and the top of the mounting plate 2, and a pressure sensor is provided inside the first adsorption tank 3 and the second adsorption tank 4. Device 17, an air guide pipe 6 is fixedly connected between the first adsorption tank 3 and the second adsorption tank 4, and the outer wall of the air guide pipe 6 is fixedly connected to the first control valve 7, one end of the first adsorption tank 3 is fixedly connected to the air intake pipe 5, and an obstruction deceleration mechanism 13 and a conduction emission mechanism 14 are respectively provided between the air intake pipe 5 and the top of the first adsorption tank 3, the top of the mounting plate 2 is fixedly connected to an air storage buffer tank 15 through a pair of vertical plates, and a diversion air storage mechanism 16 is provided between the air intake pipe 5 and the air storage buffer tank 15, the top of the second adsorption tank 4 is fixedly connected to the exhaust pipe 8, and the outer wall of the exhaust pipe 8 is fixedly connected to the second control valve 9.

[0022] According to the overall structure of the device, the first adsorption tank 3 and the second adsorption tank 4 are used for adsorption and regeneration respectively, and then the adsorbent is added through the feeding mechanism 10, and the adsorbent is filled more compactly and evenly through the vibration action of the vibration implementation mechanism 11 and the auxiliary vibration mechanism 12. In the process of PSA hydrogen production and purification, the pressure changes. When it is too high or too low, the pressure is adjusted accordingly by hindering the speed reduction mechanism 13 and the discharge conduction mechanism 14 in cooperation with the diversion gas storage mechanism 16 to maintain the pressure balance and ensure its operation safety.

[0023] like Figure 1 and Figure 2 As shown, a pair of feeding mechanisms 10 each include a feeding pipe 1001, the bottom ends of the pair of feeding pipes 1001 are respectively fixedly connected to the top ends of the first adsorption tank 3 and the second adsorption tank 4, and the outer wall of the feeding pipe 1001 is fixedly connected with a third control valve 1002, the interiors of the first adsorption tank 3 and the second adsorption tank 4 are both provided with an upper orifice plate 1004 in close contact with the inner wall thereof, and a telescopic tube 1003 is fixedly connected between the top end of the upper orifice plate 1004 and the bottom end of the feeding pipe 1001, a pair of first electric telescopic rods 1006 are fixedly connected between the top ends of the pair of upper orifice plates 1004 and the inner top ends of the first adsorption tank 3 and the second adsorption tank 4, and the first electric telescopic rods 1006 are fixedly connected to the pressure sensor 17, and the inner walls of the first adsorption tank 3 and the second adsorption tank 4 are both fixedly connected with a lower orifice plate 1005.

[0024] Through the setting of the feeding mechanism 10, the third control valve 1002 is opened, and the adsorbent is added into the first adsorption tank 3 and the second adsorption tank 4 respectively through the feeding pipe 1001 and the telescopic tube 1003, and is located between the upper orifice plate 1004 and the lower orifice plate 1005, wherein the diameter of the adsorbent is larger than the aperture of the upper orifice plate 1004 and the lower orifice plate 1005, so as to facilitate the adsorption and purification of hydrogen.

[0025] like Figure 1 and Figure 3 As shown, the vibration implementation mechanism 11 includes a dual-axis motor 1101 fixedly connected to the top of the base 1, the top of the dual-axis motor 1101 is fixedly connected to a rotating rod 1102, and the outer wall of the rotating rod 1102 is fixedly connected to a cam 1103, the outer walls of a pair of cams 1103 are in contact with the bottom end of the mounting plate 2, the bottom end of the mounting plate 2 is fixedly connected to multiple pairs of sleeves 1104, the top of the base 1 is fixedly connected to multiple pairs of fixed rods 1105, and the sleeves 1104 are sleeved on the outer walls of the fixed rods 1105, the outer walls of the multiple pairs of fixed rods 1105 are sleeved with telescopic springs 1106, and the two ends of the telescopic springs 1106 are respectively fixedly connected to the bottom end of the sleeve 1104 and the top of the base 1.

[0026] Through the setting of the vibration implementation mechanism 11, the dual-axis motor 1101 drives a pair of cams 1103 to rotate, so that the raised ends of the pair of cams 1103 repeatedly squeeze the first adsorption tank 3 and the second adsorption tank 4 to move upward, and after the squeezing is completed, the elastic action of the telescopic spring 1106 drives the first adsorption tank 3 and the second adsorption tank 4 to reset downward, prompting the first adsorption tank 3 and the second adsorption tank 4 to move up and down repeatedly, thereby realizing continuous vibration, making the adsorbent filling more compact and uniform, avoiding the powdering phenomenon caused by incomplete filling when adding the adsorbent, and ensuring its feeding effect.

[0027] like Figure 1 and Figure 4 As shown, the auxiliary vibration mechanism 12 includes two pairs of side straight plates 1201 fixedly connected to the top of the base 1, a plurality of pairs of T-shaped rods 1202 are fixedly connected to the opposite sides of a pair of side straight plates 1201, and a movable sleeve plate 1203 is sleeved between the outer walls of a pair of T-shaped rods 1202, and the ends of the plurality of pairs of movable sleeve plates 1203 that are close to each other are fixedly connected with movable protruding rods 1205, and one end of the movable protruding rods 1205 are respectively in contact with the outer walls of the first adsorption tank 3 and the second adsorption tank 4, a spring sheet 1204 is fixedly connected between the movable sleeve plate 1203 and the side straight plates 1201, and the outer walls of the first adsorption tank 3 and the second adsorption tank 4 are sleeved with a plurality of circular rings 1206.

[0028] Through the setting of the auxiliary vibration mechanism 12, when the first adsorption tank 3 and the second adsorption tank 4 move up and down, multiple rings 1206 are driven to move synchronously, and the movable protruding rod 1205 and the movable sleeve plate 1203 are squeezed to move along the T-shaped rod 1202 toward the side straight plate 1201, and separated from the outer walls of the first adsorption tank 3 and the second adsorption tank 4, and the extrusion of the ring 1206 is completed and separated from it, and the movable protruding rod 1205 and the movable sleeve plate 1203 are reset by the elastic action of the spring sheet 1204, so that the movable protruding rod 1205 contacts and collides with the outer walls of the first adsorption tank 3 and the second adsorption tank 4, and this is repeated to generate vibration, which further makes the adsorbent filling more compact and uniform, thereby avoiding the powdering phenomenon caused by incomplete filling when the adsorbent is added, and further ensuring its feeding effect.

[0029] like Figure 1 , Figure 5 and Figure 6 As shown, the speed reduction mechanism 13 includes a second electric telescopic rod 1301 fixedly connected to the top of the air intake pipe 5, the top of the second electric telescopic rod 1301 is fixedly connected to a lifting straight plate 1302, and the bottom end of the lifting straight plate 1302 is fixedly connected to an extrusion rod 1305, the top of the air intake pipe 5 is fixedly connected to a top-connected straight cylinder 1303, and the top of the top-connected straight cylinder 1303 is slidably connected with a piston 1304, the top of the top-connected straight cylinder 1303 is drilled with a circular hole, and the bottom end of the extrusion rod 1305 passes through the circular hole and is fixedly connected to the top of the piston 1304, an inner tube 1306 is fixedly connected between the top-connected straight cylinder 1303 and the air intake pipe 5, and a pair of rubber sealing sheets 1307 are rotatably connected inside the inner tube 1306, the bottom end of the inner tube 1306 is fixedly connected to an internal resistance capsule 1308, and the internal resistance capsule 1308 is located in the air intake pipe 5.

[0030] By setting up the obstruction deceleration mechanism 13, when the pressure sensor 17 detects that the internal pressure of the first adsorption tank 3 is too high, the second electric telescopic rod 1301 pulls the extrusion rod 1305 and the piston 1304 downward through the lifting straight plate 1302, so that the piston 1304 squeezes the air inside the top-connected straight cylinder 1303 to push open a pair of rubber sealing sheets 1307, and enters the internal resistance sac 1308 through the built-in tube 1306, causing the internal resistance sac 1308 to expand, occupy the air inside the intake pipe 5, obstruct the intake hydrogen, slow down its feeding speed, adjust the intake gas flow, relieve the pressure inside the first adsorption tank 3, and maintain pressure balance.

[0031] like Figure 1 and Figure 7As shown, the conduction discharge mechanism 14 includes a release tube 1401 fixedly connected to the top of the first adsorption tank 3, and the inner wall of the release tube 1401 is provided with a sealing round block 1402 in close contact therewith, the outer wall of the release tube 1401 is fixedly connected to a side connection tube 1403, and a rotating long rod 1404 is rotatably connected between the side connection tube 1403 and the release tube 1401, one end of the rotating long rod 1404 is fixedly connected to the outer wall of the sealing round block 1402, the outer wall of the rotating long rod 1404 is sleeved with a gear 1405, and the outer wall of the gear 1405 is meshingly connected with a rack plate 1406, and the bottom end of the rack plate 1406 is fixedly connected to the top of the lifting straight plate 1302.

[0032] By setting up the discharge mechanism 14, when the lifting straight plate 1302 moves downward, it drives the rack plate 1406 to move downward. The rack plate 1406 drives the gear 1405 to rotate through the meshing transmission action. The gear 1405 drives the sealing round block 1402 to rotate by rotating the long rod 1404, thereby canceling the seal on the release tube 1401, causing part of the impurity gas adsorbed inside the first adsorption tank 3 to be released outward, reducing the pressure, maintaining the pressure stable, playing the role of pressure protection, avoiding damage to the equipment due to excessive pressure, and ensuring its operation safety.

[0033] like Figure 1 , Figure 8 , Fig. 9 and Fig.10As shown, the diversion gas storage mechanism 16 includes a fixed straight plate 1601 fixedly connected to the top of the base 1, one end of the fixed straight plate 1601 is rotatably connected to a pair of pulleys 1602, and a transmission belt 1603 is transmission-connected between the pair of pulleys 1602, the outer wall of the transmission belt 1603 and one end of the lifting straight plate 1302 are fixedly connected to a first L-shaped plate 1604, and the outer wall of the transmission belt 1603 is fixedly connected to a second L-shaped plate 1605, the bottom end of the second L-shaped plate 1605 is fixedly connected to a connecting rod 1606, and the top of the gas storage buffer tank 15 is drilled with a through hole, the bottom end of the connecting rod 1606 passes through the through hole and is fixedly connected to a porous circular plate 1607, the outer wall of the porous circular plate 1607 is in contact with the inner wall of the gas storage buffer tank 15, and the bottom end of the porous circular plate 1607 is fixedly connected to a round blocking block 1 609, an embedded tube 1608 is fixedly connected between the bottom end of the gas storage buffer tank 15 and the top end of the air inlet pipe 5, and the outer wall of the round block 1609 is in close contact with the inner wall of the embedded tube 1608, an exhaust pipe 16011 is embedded and connected to the outer wall of the gas storage buffer tank 15, an exhaust fan 16010 is fixedly connected to the outer wall of the gas storage buffer tank 15, and one end of the exhaust pipe 16011 is fixedly connected to one end of the exhaust fan 16010, an exhaust pipe 16012 is fixedly connected between the other end of the exhaust fan 16010 and the outer wall of the first adsorption tank 3, a sliding rod 16013 is fixedly connected to one end of the first L-shaped plate 1604 and the second L-shaped plate 1605, a pair of sliding grooves 16014 are cut at one end of the fixed straight plate 1601, and one end of the sliding rod 16013 is located in the sliding groove 16014 and is slidably connected thereto.

[0034] By setting the split air storage mechanism 16, the lifting straight plate 1302 moves downward, driving the first L-shaped plate 1604 to move downward, and the first L-shaped plate 1604 drives the transmission belt 1603 to move with the assistance of a pair of pulleys 1602, and drives the second L-shaped plate 1605 on the other side to move upward, so that the second L-shaped plate 1605 drives the porous circular plate 1607 and the circular blocking block 1609 to move upward through the connecting rod 1606, canceling the blockage of the embedded pipe 1608, and promoting the intake pipe 5 Part of the hydrogen is diverted into the embedded tube 1608, and then enters the gas buffer tank 15 after being dispersed and buffered by the porous circular plate 1607 for temporary storage to relieve the situation of excessive pressure. When the pressure is too low, the vacuum fan 16010 extracts the hydrogen in the gas buffer tank 15 through the vacuum pipe 16011 and discharges it into the first adsorption tank 3 through the outlet pipe 16012 to supplement the hydrogen supply, maintain the normal operating pressure of the PSA hydrogen production and purification, and further play a role in pressure protection.

[0035] Working principle: First, open the third control valve 1002, and add the adsorbent into the first adsorption tank 3 and the second adsorption tank 4 respectively through the feed pipe 1001 and the telescopic tube 1003, which are located between the upper orifice plate 1004 and the lower orifice plate 1005. At the same time, the dual-axis motor 1101 drives a pair of cams 1103 to rotate, so that the raised ends of the pair of cams 1103 repeatedly squeeze the first adsorption tank 3 and the second adsorption tank 4 to move upward, and after the squeezing is completed, the first adsorption tank 3 and the second adsorption tank 4 are driven to reset downward by the elastic action of the telescopic spring 1106, so that the first adsorption tank 3 and the second adsorption tank 4 are continuously vibrated, and when the first adsorption tank 3 and the second adsorption tank 4 move up and down, they drive multiple rings 1206 to move synchronously, squeezing the movable convex The rod 1205 and the movable sleeve plate 1203 move along the T-shaped rod 1202 toward the side straight plate 1201, separate from the outer walls of the first adsorption tank 3 and the second adsorption tank 4, and end the extrusion at the ring 1206 and separate from it. The movable protruding rod 1205 and the movable sleeve plate 1203 perform a reset movement under the elastic action of the spring sheet 1204, causing the movable protruding rod 1205 to contact and collide with the outer walls of the first adsorption tank 3 and the second adsorption tank 4, and repeat this process to generate vibration, and cooperate with the first electric telescopic rod 1006 to drive the adsorbent to be compactly and evenly filled, and then the hydrogen enters the first adsorption tank 3 through the intake pipe 5, and enters the adsorbent through the lower orifice plate 1005, so that the adsorbent absorbs the impurity gas therein, and then moves upward from the upper orifice plate 1004. The hydrogen is discharged through the air guide pipe 6 and the first control valve 7 into the second adsorption tank 4, so that the hydrogen is adsorbed and purified under the adsorption and regeneration effect of the first adsorption tank 3 and the second adsorption tank 4. When the pressure sensor 17 detects that the internal pressure of the first adsorption tank 3 is too high, the second electric telescopic rod 1301 pulls the lifting straight plate 1302 and the squeezing rod 1305 to move downward, driving the piston 1304 to squeeze the air inside the top-connected straight cylinder 1303 to push open a pair of rubber sealing sheets 1307, and enter the internal resistance capsule 1308 through the built-in tube 1306, so that the internal resistance capsule 1308 expands, occupies the air inside the intake pipe 5, hinders the intake hydrogen, slows down its feeding speed, adjusts the intake gas flow, and at the same time lifts the straight plate 1302. When it moves downward, it drives the rack plate 1406 to move downward. The rack plate 1406 drives the gear 1405 to rotate through meshing transmission. The gear 1405 drives the sealing round block 1402 to rotate by rotating the long rod 1404, cancels the seal of the release tube 1401, and causes part of the impurity gas adsorbed inside the first adsorption tank 3 to be released outward, reducing the pressure. The lifting straight plate 1302 moves downward, driving the first L-shaped plate 1604 to move downward. The first L-shaped plate 1604 drives the transmission belt 1603 to move with the assistance of a pair of pulleys 1602, and drives the second L-shaped plate 1605 on the other side to move upward, so that the second L-shaped plate 1605 drives the porous circular plate 1607 and the round block 1609 to move upward through the connecting rod 1606.The blockage of the embedded tube 1608 is cancelled, so that part of the hydrogen in the inlet pipe 5 is diverted into the embedded tube 1608, and then enters the gas storage buffer tank 15 after being dispersed and buffered by the porous circular plate 1607 for temporary storage to relieve the situation of excessive pressure. When the pressure is too low, the exhaust fan 16010 extracts the hydrogen in the gas storage buffer tank 15 through the exhaust pipe 16011 and discharges it into the first adsorption tank 3 through the outlet pipe 16012 to supplement the hydrogen supply and maintain the normal operating pressure of the PSA hydrogen production and purification. Then the purified hydrogen is discharged to the outside through the exhaust pipe 8.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A coke oven gas PSA hydrogen production purification device with pressure protection, comprising a base (1), characterized in that: A mounting plate (2) is provided on the top of the base (1), and a vibration implementation mechanism (11) is provided between the top of the base (1) and the bottom of the mounting plate (2); the top of the mounting plate (2) is respectively fixedly connected to the first adsorption tank (3) and the second adsorption tank (4), and a feeding mechanism (10) is provided inside the first adsorption tank (3) and the second adsorption tank (4); an auxiliary vibration mechanism (12) is provided between the outer wall of the first adsorption tank (3) and the second adsorption tank (4) and the top of the mounting plate (2), and a pressure sensor (17) is provided inside the first adsorption tank (3) and the second adsorption tank (4); An air guide pipe (6) is fixedly connected between the two adsorption tanks, and a first control valve (7) is fixedly connected to the outer wall of the air guide pipe (6); one end of the first adsorption tank (3) is fixedly connected to an air intake pipe (5), and a speed-reducing mechanism (13) and a discharge-conducting mechanism (14) are respectively provided between the top of the air intake pipe (5) and the top of the first adsorption tank (3); the top of the mounting plate (2) is fixedly connected to an air storage buffer tank (15) via a pair of vertical plates, and a flow-dividing air storage mechanism (16) is provided between the air intake pipe (5) and the air storage buffer tank (15); the top of the second adsorption tank (4) is fixedly connected to an exhaust pipe (8), and a second control valve (9) is fixedly connected to the outer wall of the exhaust pipe (8); 2. The coke oven gas PSA hydrogen production purification equipment with pressure protection according to claim 1 is characterized by: The pair of feeding mechanisms (10) each comprises a feeding pipe (1001), the bottom ends of the pair of feeding pipes (1001) are respectively fixedly connected to the top ends of the first adsorption tank (3) and the second adsorption tank (4), and the outer wall of the feeding pipe (1001) is fixedly connected to a third control valve (1002), the interior of the first adsorption tank (3) and the second adsorption tank (4) are each provided with an upper orifice plate (1004) in close contact with the inner wall thereof, and a telescopic tube (1003) is fixedly connected between the top end of the upper orifice plate (1004) and the bottom end of the feeding pipe (1001), a pair of first electric telescopic rods (1006) are respectively fixedly connected between the top ends of the pair of upper orifice plates (1004) and the inner top ends of the first adsorption tank (3) and the second adsorption tank (4), and the first electric telescopic rods (1006) are fixedly connected to a pressure sensor (17), and the inner walls of the first adsorption tank (3) and the second adsorption tank (4) are each fixedly connected to a lower orifice plate (1005).

3. The coke oven gas PSA hydrogen production purification equipment with pressure protection according to claim 1, characterized in that: The vibration implementation mechanism (11) comprises a dual-axis motor (1101) fixedly connected to the top of the base (1); the top of the dual-axis motor (1101) is fixedly connected to a rotating rod (1102); the outer wall of the rotating rod (1102) is fixedly connected to a cam (1103); the outer walls of a pair of cams (1103) are in contact with the bottom end of the mounting plate (2); the bottom end of the mounting plate (2) is fixedly connected to a plurality of pairs of sleeves (1104); the top of the base (1) is fixedly connected to a plurality of pairs of fixed rods (1105); the sleeves (1104) are sleeved on the outer walls of the fixed rods (1105); the outer walls of the plurality of pairs of fixed rods (1105) are sleeved with telescopic springs (1106); and the two ends of the telescopic springs (1106) are respectively fixedly connected to the bottom end of the sleeves (1104) and the top of the base (1).

4. The coke oven gas PSA hydrogen production purification equipment with pressure protection according to claim 1, characterized in that: The auxiliary material vibrating mechanism (12) comprises two pairs of side straight plates (1201) fixedly connected to the top of the base (1); a plurality of pairs of T-shaped rods (1202) are fixedly connected to the opposite sides of a pair of the side straight plates (1201); a movable sleeve plate (1203) is sleeved between the outer walls of the pair of T-shaped rods (1202); a movable protruding rod (1205) is fixedly connected to the adjacent ends of the plurality of pairs of the movable sleeve plates (1203); one end of the movable protruding rod (1205) is respectively in contact with the outer walls of the first adsorption tank (3) and the second adsorption tank (4); a spring sheet (1204) is fixedly connected between the movable sleeve plate (1203) and the side straight plates (1201); and a plurality of circular rings (1206) are sleeved on the outer walls of the first adsorption tank (3) and the second adsorption tank (4).

5. The coke oven gas PSA hydrogen production purification equipment with pressure protection according to claim 1, characterized in that: The deceleration blocking mechanism (13) comprises a second electric telescopic rod (1301) fixedly connected to the top of the air intake pipe (5); the top of the second electric telescopic rod (1301) is fixedly connected to a lifting straight plate (1302); the bottom of the lifting straight plate (1302) is fixedly connected to an extrusion rod (1305); the top of the air intake pipe (5) is fixedly connected to a top-connected straight cylinder (1303); the top of the top-connected straight cylinder (1303) is slidably connected to a piston (1304); the top-connected straight cylinder (1303) is fixedly connected to a piston (1304) in a sliding manner; A circular hole is drilled at the top of the piston (1303), and the bottom end of the extrusion rod (1305) passes through the circular hole and is fixedly connected to the top of the piston (1304). An internal tube (1306) is fixedly connected between the top straight cylinder (1303) and the air intake pipe (5), and a pair of rubber sealing sheets (1307) are rotatably connected inside the internal tube (1306). An internal resistance capsule (1308) is fixedly connected to the bottom end of the internal tube (1306), and the internal resistance capsule (1308) is located in the air intake pipe (5).

6. The coke oven gas PSA hydrogen production purification equipment with pressure protection according to claim 5, characterized in that: The conduction discharge mechanism (14) comprises a release tube (1401) fixedly connected to the top of the first adsorption tank (3), and the inner wall of the release tube (1401) is provided with a sealing round block (1402) in close contact with the release tube, the outer wall of the release tube (1401) is fixedly connected to a side connection tube (1403), and a rotating long rod (1404) is rotatably connected between the side connection tube (1403) and the release tube (1401), one end of the rotating long rod (1404) is fixedly connected to the outer wall of the sealing round block (1402), the outer wall of the rotating long rod (1404) is sleeved with a gear (1405), and the outer wall of the gear (1405) is meshingly connected with a rack plate (1406), and the bottom end of the rack plate (1406) is fixedly connected to the top of the lifting straight plate (1302).

7. The coke oven gas PSA hydrogen production purification equipment with pressure protection according to claim 5, characterized in that: The flow-dividing gas storage mechanism (16) comprises a fixed straight plate (1601) fixedly connected to the top of the base (1); one end of the fixed straight plate (1601) is rotatably connected to a pair of pulleys (1602); a transmission belt (1603) is transmission-connected between the pair of pulleys (1602); an outer wall of the transmission belt (1603) and one end of the lifting straight plate (1302) are fixedly connected to a first L-shaped plate (1604); and an outer wall of the transmission belt (1603) is fixedly connected to a second L-shaped plate (1605); and the bottom end of the second L-shaped plate (1605) is fixedly connected to A connecting rod (1606) is provided, and a through hole is drilled at the top of the gas storage buffer tank (15). The bottom end of the connecting rod (1606) passes through the through hole and is fixedly connected to a porous circular plate (1607). The outer wall of the porous circular plate (1607) is in contact with the inner wall of the gas storage buffer tank (15), and a round blocking block (1609) is fixedly connected to the bottom end of the porous circular plate (1607). An embedded tube (1608) is fixedly connected between the bottom end of the gas storage buffer tank (15) and the top end of the air inlet pipe (5), and the outer wall of the round blocking block (1609) is in close contact with the inner wall of the embedded tube (1608).

8. The coke oven gas PSA hydrogen production purification equipment with pressure protection according to claim 7 is characterized by: An exhaust pipe (16011) is embedded in the outer wall of the gas storage buffer tank (15), and an exhaust fan (16010) is fixedly connected to the outer wall of the gas storage buffer tank (15), and one end of the exhaust pipe (16011) is fixedly connected to one end of the exhaust fan (16010), and an exhaust pipe (16012) is fixedly connected between the other end of the exhaust fan (16010) and the outer wall of the first adsorption tank (3).

9. The coke oven gas PSA hydrogen production purification equipment with pressure protection according to claim 7, characterized in that: One end of the first L-shaped plate (1604) and the second L-shaped plate (1605) are fixedly connected to a sliding rod (16013), one end of the fixed straight plate (1601) is formed with a pair of sliding grooves (16014), and one end of the sliding rod (16013) is located in the sliding groove (16014) and is slidably connected thereto.

Images