A purification device for PSA hydrogen production from coke oven gas with pressure protection

Abstract

The present invention discloses a purification device for PSA hydrogen production from coke oven gas with pressure protection, which relates to the technical field of PSA hydrogen production purification devices. It includes a base, on the top of the base there is a mounting plate, and between the top end of the base and the bottom end of the mounting plate there is a vibration implementation mechanism. The top end of the mounting plate is respectively fixedly connected with a first adsorption tank and a second adsorption tank, and inside both the first adsorption tank and the second adsorption tank there is a feeding mechanism. Through the arranged obstruction speed reduction mechanism and conduction discharge mechanism, when the pressure sensor detects that the internal pressure of the first adsorption tank is too high, it obstructs and reduces the speed of hydrogen feeding, adjusts the gas flow rate of the inlet gas, and at the same time drives some of the impurity gases adsorbed inside the first adsorption tank to be released outward, thereby reducing the pressure and maintaining pressure balance, playing a role of pressure protection, avoiding damage to the equipment caused by too high pressure, and ensuring its operation safety.

Description

Technical Field

[0001] The present invention relates to the technical field of PSA hydrogen production and purification equipment, and specifically to a purification equipment for PSA hydrogen production from coke oven gas with pressure protection. Background Art

[0002] The coke oven gas hydrogen production process can be roughly divided into the following processes: fine purification, pretreatment, compression, PSA hydrogen extraction, deoxidation drying, and product hydrogen storage and external supply, etc. During the PSA hydrogen purification process, the device uses a hydrogen-rich mixed gas as the raw material, and uses adsorbents such as activated carbon, alumina, silica gel, and molecular sieve to adsorb impurities under high pressure and desorb and regenerate under low pressure. Impurities are removed by changing the pressure, thereby purifying hydrogen.

[0003] Currently, PSA hydrogen production and purification mainly rely on the adsorption capacity differences of different gases on solid adsorbents to achieve gas separation and purification by changing the pressure conditions. And during the monitoring of the pressure change process, corresponding pressure regulation is required to achieve pressure protection. However, in the prior art, generally only a pressure relief valve is relied on for pressure relief, which is relatively slow and single, and it is easy to occur the situation of pipe explosion or pipe cracking, reducing the safety during PSA hydrogen production and purification. Therefore, the present invention proposes a purification equipment for PSA hydrogen production from coke oven gas 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 provide a purification equipment for PSA hydrogen production from coke oven gas with pressure protection.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A purification equipment for PSA hydrogen production from coke oven gas with pressure protection, including a base. The top of the base is provided with a mounting plate, and a vibration compacting mechanism is provided between the top end of the base and the bottom end of the mounting plate. The top end of the mounting plate is respectively fixedly connected with a first adsorption tank and a second adsorption tank, and a feeding mechanism is provided inside both the first adsorption tank and the second adsorption tank. An auxiliary vibrating material mechanism is provided between the outer walls of the first adsorption tank and the second adsorption tank and the top end of the mounting plate, and pressure sensors are provided inside both the first adsorption tank and the second adsorption tank. A gas guide pipe is fixedly connected between the first adsorption tank and the second adsorption tank, and a first control valve is fixedly connected to the outer wall of the gas guide pipe. One end of the first adsorption tank is fixedly connected with an air inlet pipe, and an obstruction deceleration mechanism and a conduction and discharge mechanism are respectively provided between the air inlet pipe and the top end of the first adsorption tank. The top end of the mounting plate is fixedly connected with a gas storage buffer tank through a pair of vertical plates, and a flow splitting and gas storage mechanism is provided between the air inlet pipe and the gas storage buffer tank. The top end of the second adsorption tank is fixedly connected with an exhaust pipe, and a second control valve is fixedly connected to the outer wall of the exhaust pipe.

[0006] As a preferred solution of the present invention, each of the pair of feeding mechanisms includes a feeding pipe. The bottom ends of the pair of feeding pipes are respectively fixedly connected to the tops of the first adsorption tank and the second adsorption tank. A third control valve is fixedly connected to the outer wall of the feeding pipe. Upper orifice plates that are in close contact with their inner walls are provided inside both the first adsorption tank and the second adsorption tank. A telescopic pipe 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 fixedly connected between the top ends of the pair of upper orifice plates and the inner tops of the first adsorption tank and the second adsorption tank respectively. The first electric telescopic rods are fixedly connected to pressure sensors. Lower orifice plates are fixedly connected to the inner walls of both the first adsorption tank and the second adsorption tank.

[0007] As a preferred solution of the present invention, the vibration implementation mechanism includes a double-shaft motor fixedly connected to the top of the base. Rotating rods are fixedly connected to the top ends of the double-shaft motor. Cams are fixedly connected to the outer walls of the rotating rods. The outer walls of the pair of cams are in contact with the bottom end of the mounting plate. A plurality of pairs of sleeves are fixedly connected to the bottom end of the mounting plate. A plurality of pairs of fixed rods are fixedly connected to the top of the base. The sleeves are sleeved on the outer walls of the fixed rods. A plurality of pairs of telescopic springs are sleeved on the outer walls of the fixed rods. 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 vibrating material mechanism includes two pairs of side connecting straight plates fixedly connected to the top of the base. A plurality of pairs of T-shaped rods are fixedly connected to the opposite sides of a pair of side connecting straight plates. A moving sleeve plate is sleeved between the outer walls of the pair of T-shaped rods. A plurality of pairs of moving sleeve plates are fixedly connected to the ends close to each other with movable convex rods. One end of each movable convex rod is in contact with the outer walls of the first adsorption tank and the second adsorption tank respectively. A spring piece is fixedly connected between the moving sleeve plate and the side connecting straight plate. A plurality of rings are sleeved on the outer walls of both the first adsorption tank and the second adsorption tank.

[0009] As a preferred solution of the present invention, the blocking and speed-reducing mechanism includes a second electric telescopic rod fixedly connected to the top of the air inlet pipe. The top end of the second electric telescopic rod is fixedly connected to a lifting straight plate. An extrusion rod is fixedly connected to the bottom end of the lifting straight plate. A top connecting straight cylinder is fixedly connected to the top of the air inlet pipe. A piston is slidably connected inside the top connecting straight cylinder. A round hole is drilled at the top of the top connecting straight cylinder. The bottom end of the extrusion rod passes through the round hole and is fixedly connected to the top end of the piston. An internal pipe is fixedly connected between the top connecting straight cylinder and the air inlet pipe. A pair of rubber sealing pieces are rotatably connected inside the internal pipe. An internal resistance bladder is fixedly connected to the bottom end of the internal pipe. The internal resistance bladder is located inside the air inlet 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:

[0015] 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.

[0016] Second, through the provided blocking and speed - reducing mechanism and conducting and discharging mechanism, when the pressure sensor detects that the internal pressure of the first adsorption tank is too high, the speed of hydrogen feeding is blocked and reduced, the gas flow rate of the inlet gas is adjusted, and at the same time, part of the impurity gas adsorbed inside the first adsorption tank is driven to be released outward, thereby reducing the pressure, maintaining pressure balance, playing a role in pressure protection, avoiding damage to the equipment caused by excessive pressure, and ensuring its operation safety.

[0017] Third, through the provided shunt gas - storage mechanism, when the pressure is too high, part of the hydrogen is shunted and temporarily stored in the gas - storage buffer tank to relieve the situation of excessive pressure. When the pressure is too low, the hydrogen inside the gas - storage buffer tank is discharged into the first adsorption tank to supplement the hydrogen supply and maintain the normal operating pressure of PSA hydrogen production and purification, further playing a role in pressure protection.

[0018] Other advantages, objectives, and features of the present invention will be described to some extent in the subsequent description, and to some extent, will be obvious to those skilled in the art based on the study of the following text, or can be taught from the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is the overall three - dimensional structure schematic diagram of the present invention;

[0020] Figure 2 is the partial sectional structure schematic diagram of the second adsorption tank and the feeding mechanism in the present invention;

[0021] Figure 3 is the partial sectional structure schematic diagram of the mounting plate and the vibrating and implementing mechanism in the present invention;

[0022] Figure 4 is the partial sectional structure schematic diagram of the auxiliary vibrating material mechanism in the present invention;

[0023] Figure 5 is the partial sectional structure schematic diagram of the feeding pipe and the blocking and speed - reducing mechanism in the present invention;

[0024] Figure 6 of the present invention Figure 5 is the enlarged structure schematic diagram at A in;

[0025] Figure 7 is the partial sectional structure schematic diagram of the conducting and discharging mechanism in the present invention;

[0026] Figure 8 is the partial sectional structure schematic diagram of the gas - storage buffer tank and the shunt gas - storage mechanism in the present invention;

[0027] Figure 9 of the present invention Figure 8 is the enlarged structure schematic diagram at B in;

[0028] Figure 10 This is a partial three-dimensional structural schematic diagram of another perspective of the first adsorption tank and the shunt gas storage mechanism in the present invention.

[0029] In the figure: 1, base; 2, mounting plate; 3, first adsorption tank; 4, second adsorption tank; 5, intake pipe; 6, 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; 1101, double-shaft motor; 1102, rotating rod; 1103, cam; 1104, sleeve; 1105, fixed rod; 1106, telescopic spring; 12, auxiliary vibrating material mechanism; 1201, side connection straight plate; 1202, T-shaped rod; 1203, moving sleeve plate; 1204, spring piece; 1205, movable convex rod; 1206, ring; 13, blocking and decelerating mechanism; 1301, second electric telescopic rod; 1302, lifting straight plate; 1303, top connection straight cylinder; 1304, piston; 1305, extrusion rod; 1306, built-in pipe; 1307, rubber sealing piece; 1308, internal resistance bladder; 14, conduction and discharge mechanism; 1401, release pipe; 1402, sealing round block; 1403, side connection cylinder; 1404, rotating long rod; 1405, gear; 1406, rack plate; 15, gas storage buffer tank; 16, shunt 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, porous round plate; 1608, embedded pipe; 1609, round plug; 16010, air extractor; 16011, air extraction pipe; 16012, outlet pipe; 16013, sliding rod; 16014, chute; 17, pressure sensor. Detailed implementation manners

[0030] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0031] Such as Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 、 Figure 9and Figure 10 As shown in the figure, the present invention provides a technical solution: a purification device for PSA hydrogen production from coke oven gas with pressure protection, including a base 1. An installation plate 2 is provided on the top of the base 1, and a vibration implementation mechanism 11 is provided between the top end of the base 1 and the bottom end of the installation plate 2. The top end of the installation plate 2 is fixedly connected with a first adsorption tank 3 and a second adsorption tank 4 respectively. Feed mechanisms 10 are provided inside both the first adsorption tank 3 and the second adsorption tank 4. An auxiliary vibration material mechanism 12 is provided between the outer walls of the first adsorption tank 3 and the second adsorption tank 4 and the top end of the installation plate 2. Pressure sensors 17 are provided inside both the first adsorption tank 3 and the second adsorption tank 4. A gas guide pipe 6 is fixedly connected between the first adsorption tank 3 and the second adsorption tank 4, and a first control valve 7 is fixedly connected to the outer wall of the gas guide pipe 6. One end of the first adsorption tank 3 is fixedly connected with an air inlet pipe 5, and an obstruction speed reduction mechanism 13 and a conduction and discharge mechanism 14 are respectively provided between the air inlet pipe 5 and the top end of the first adsorption tank 3. The top end of the installation plate 2 is fixedly connected with a gas storage buffer tank 15 through a pair of vertical plates, and a flow splitting and gas storage mechanism 16 is provided between the air inlet pipe 5 and the gas storage buffer tank 15. The top end of the second adsorption tank 4 is fixedly connected with an exhaust pipe 8, and a second control valve 9 is fixedly connected to the outer wall of the exhaust pipe 8.

[0032] According to the overall structure of the device, the first adsorption tank 3 and the second adsorption tank 4 are respectively used for adsorption and regeneration. Then, an adsorbent is added through the feed mechanism 10, and through the vibration of the vibration implementation mechanism 11 and the auxiliary vibration material mechanism 12, the adsorbent is filled more tightly and evenly. During the PSA hydrogen production and purification process, when the pressure changes, too high or too low, the obstruction speed reduction mechanism 13 and the conduction and discharge mechanism 14 cooperate with the flow splitting and gas storage mechanism 16 to drive the pressure to be adjusted accordingly to maintain pressure balance and ensure its operation safety.

[0033] As Figure 1 and Figure 2 shown, a pair of feed mechanisms 10 both include feed pipes 1001. The bottom ends of the pair of feed pipes 1001 are respectively fixedly connected to the top ends of the first adsorption tank 3 and the second adsorption tank 4, and a third control valve 1002 is fixedly connected to the outer wall of the feed pipe 1001. Upper orifice plates 1004 that are in close contact with the inner walls are provided inside both the first adsorption tank 3 and the second adsorption tank 4. A telescopic pipe 1003 is fixedly connected between the top end of the upper orifice plate 1004 and the bottom end of the feed 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 respectively, and the first electric telescopic rods 1006 are fixedly connected to the pressure sensors 17. Lower orifice plates 1005 are fixedly connected to the inner walls of both the first adsorption tank 3 and the second adsorption tank 4.

[0034] By setting up the feeding mechanism 10, open the third control valve 1002, and add the adsorbent into the first adsorption tank 3 and the second adsorption tank 4 through the feed pipe 1001 and the telescopic pipe 1003 respectively, where the adsorbent is located between the upper orifice plate 1004 and the lower orifice plate 1005. The diameter of the adsorbent is larger than the aperture diameters of the upper orifice plate 1004 and the lower orifice plate 1005, so as to facilitate the adsorption and purification of hydrogen.

[0035] As Figure 1 and Figure 3 As shown in the figure, the vibration implementation mechanism 11 includes a double-shaft motor 1101 fixedly connected to the top end of the base 1. Rotating rods 1102 are fixedly connected to the top ends of the double-shaft motor 1101, and cams 1103 are fixedly connected to the outer walls of the rotating rods 1102. The outer walls of a pair of cams 1103 are in contact with the bottom end of the mounting plate 2. A plurality of pairs of sleeves 1104 are fixedly connected to the bottom end of the mounting plate 2. A plurality of pairs of fixed rods 1105 are fixedly connected to the top end of the base 1, and the sleeves 1104 are sleeved on the outer walls of the fixed rods 1105. A plurality of pairs of telescopic springs 1106 are sleeved on the outer walls of the fixed rods 1105, and the two ends of the telescopic springs 1106 are fixedly connected to the bottom end of the sleeve 1104 and the top end of the base 1 respectively.

[0036] By setting up the vibration implementation mechanism 11, the double-shaft motor 1101 drives a pair of cams 1103 to rotate, so that the convex ends of the pair of cams 1103 repeatedly squeeze the first adsorption tank 3 and the second adsorption tank 4 to move upward. After the extrusion ends, 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, prompting the first adsorption tank 3 and the second adsorption tank 4 to move up and down repeatedly, so as to achieve continuous vibration, make the filling of the adsorbent more compact and uniform, avoid the phenomenon of powdering due to uneven filling when adding the adsorbent, and ensure its feeding effect.

[0037] As Figure 1 and Figure 4 As shown in the figure, the auxiliary vibration material mechanism 12 includes two pairs of side connection straight plates 1201 fixedly connected to the top end 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 connection straight plates 1201, and a movable sleeve plate 1203 is sleeved between the outer walls of a plurality of pairs of T-shaped rods 1202. The closer ends of the plurality of pairs of movable sleeve plates 1203 are fixedly connected with movable convex rods 1205, and one ends of the movable convex rods 1205 are in contact with the outer walls of the first adsorption tank 3 and the second adsorption tank 4 respectively. Spring pieces 1204 are fixedly connected between the movable sleeve plate 1203 and the side connection straight plate 1201. A plurality of rings 1206 are sleeved on the outer walls of the first adsorption tank 3 and the second adsorption tank 4.

[0038] With the aid of the auxiliary vibrating material mechanism 12, when the first adsorption tank 3 and the second adsorption tank 4 move up and down, they drive the synchronous movement of a plurality of rings 1206, squeezing the movable convex rod 1205 and the movable sleeve plate 1203 to move along the T-shaped rod 1202 towards the side connecting straight plate 1201, separating from the outer walls of the first adsorption tank 3 and the second adsorption tank 4. And when the extrusion of the ring 1206 ends and it separates from them, the elastic action of the spring piece 1204 drives the movable convex rod 1205 and the movable sleeve plate 1203 to reset, making the movable convex rod 1205 contact and collide with the outer walls of the first adsorption tank 3 and the second adsorption tank 4. Repeating this way, vibration is generated, further making the adsorbent packed more tightly and evenly, thus avoiding the phenomenon of powdering due to uneven packing when adding the adsorbent, and further ensuring its feeding effect.

[0039] As Figure 1 , Figure 5 and Figure 6 shown, the speed reduction hindrance mechanism 13 includes a second electric telescopic rod 1301 fixedly connected to the top end of the intake pipe 5. The top end of the second electric telescopic rod 1301 is fixedly connected with a lifting straight plate 1302, and the bottom end of the lifting straight plate 1302 is fixedly connected with a pressing rod 1305. The top end of the intake pipe 5 is fixedly connected with a top connecting straight cylinder 1303, and a piston 1304 is slidably connected inside the top connecting straight cylinder 1303. A round hole is drilled at the top end of the top connecting straight cylinder 1303, and the bottom end of the pressing rod 1305 passes through the round hole and is fixedly connected with the top end of the piston 1304. A built-in pipe 1306 is fixedly connected between the top connecting straight cylinder 1303 and the intake pipe 5, and a pair of rubber sealing pieces 1307 are rotatably connected inside the built-in pipe 1306. The bottom end of the built-in pipe 1306 is fixedly connected with an internal resistance bladder 1308, and the internal resistance bladder 1308 is located inside the intake pipe 5.

[0040] With the aid of the speed reduction hindrance mechanism 13, when the pressure sensor 17 detects that the pressure inside the first adsorption tank 3 is too high, the second electric telescopic rod 1301 pulls the pressing rod 1305 and the piston 1304 downward through the lifting straight plate 1302, making the piston 1304 squeeze the air inside the top connecting straight cylinder 1303 to push open a pair of rubber sealing pieces 1307, and enter the internal resistance bladder 1308 through the built-in pipe 1306, prompting the internal resistance bladder 1308 to expand, occupying the air inside the intake pipe 5, hindering the intake of hydrogen, slowing down its feeding speed, regulating the gas flow rate of the intake air, relieving the pressure inside the first adsorption tank 3, and maintaining pressure balance.

[0041] As Figure 1 and Figure 7As shown in the figure, the conduction and discharge mechanism 14 includes a release pipe 1401 fixedly connected to the top end of the first adsorption tank 3. A sealing round block 1402 in close contact with the inner wall of the release pipe 1401 is provided on the inner wall of the release pipe 1401. A side connection cylinder 1403 is fixedly connected to the outer wall of the release pipe 1401. A rotating long rod 1404 is rotatably connected between the side connection cylinder 1403 and the release pipe 1401. One end of the rotating long rod 1404 is fixedly connected to the outer wall of the sealing round block 1402. A gear 1405 is sleeved on the outer wall of the rotating long rod 1404. A rack plate 1406 is meshed with the outer wall of the gear 1405. The bottom end of the rack plate 1406 is fixedly connected to the top end of the lifting straight plate 1302.

[0042] Through the setting of the conduction and 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. The gear 1405 drives the sealing round block 1402 to rotate through the rotating long rod 1404, canceling the sealing of the release pipe 1401, promoting the release of some impurity gases adsorbed inside the first adsorption tank 3 to the outside, reducing the pressure, maintaining the pressure stability, playing a role in pressure protection, avoiding damage to the equipment caused by excessive pressure, and ensuring its operation safety.

[0043] Such as Figure 1 , Figure 8 , Figure 9 and Figure 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.

[0044] 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.

[0045] 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 through the feed pipe 1001 and the telescopic pipe 1003 respectively, which is located between the upper orifice plate 1004 and the lower orifice plate 1005. At the same time, the biaxial motor 1101 drives a pair of cams 1103 to rotate, so that the convex ends of the pair of cams 1103 repeatedly squeeze the first adsorption tank 3 and the second adsorption tank 4 to move upward. After the squeezing ends, 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, prompting the first adsorption tank 3 and the second adsorption tank 4 to vibrate continuously. When the first adsorption tank 3 and the second adsorption tank 4 move up and down, they drive a plurality of rings 1206 to move synchronously, squeezing the movable convex rod 1205 and the movable sleeve plate 1203 to move along the T-shaped rod 1202 in the direction of the side connection straight plate 1201, separating from the outer walls of the first adsorption tank 3 and the second adsorption tank 4. When the rings 1206 finish squeezing and separate from them, the movable convex rod 1205 and the movable sleeve plate 1203 perform a reset movement under the elastic action of the spring piece 1204, prompting the movable convex rod 1205 to contact and collide with the outer walls of the first adsorption tank 3 and the second adsorption tank 4. Repeating like this, vibrations are generated, cooperating with the first electric telescopic rod 1006 to drive the adsorbent to be tightly and evenly loaded. Then, hydrogen enters the first adsorption tank 3 through the inlet pipe 5, enters the adsorbent through the lower orifice plate 1005, enabling the adsorbent to adsorb the impurity gas therein, and then is discharged upward through the upper orifice plate 1004, enters the second adsorption tank 4 through the guide pipe 6 and the first control valve 7, prompting the hydrogen to be adsorbed and purified under the adsorption and regeneration use effects of the first adsorption tank 3 and the second adsorption tank 4. Among them, 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 extrusion rod 1305 to move downward, driving the piston 1304 to squeeze the air inside the top connection straight tube 1303 to push open a pair of rubber sealing pieces 1307, enter the internal resistance bladder 1308 through the built-in pipe 1306, prompting the internal resistance bladder 1308 to expand, occupying the air inside the inlet pipe 5, hindering the incoming hydrogen, slowing down its feeding speed, and regulating the gas flow rate of the incoming gas. At the same time, 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, and the gear 1405 drives the sealing round block 1402 to rotate through the rotating long rod 1404, canceling the sealing of the release pipe 1401, prompting some of the impurity gas adsorbed inside the first adsorption tank 3 to be released outward, reducing the pressure. Moreover, when the lifting straight plate 1302 moves downward, it drives 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 belt pulleys 1602, and drives the second L-shaped plate 1605 on the other side to move upward, enabling the second L-shaped plate 1605 to drive the porous round plate 1607 and the round plug 1609 to move upward through the connecting rod 1606.The blockage of the embedded pipe 1608 is removed, prompting a part of the hydrogen in the intake pipe 5 to be diverted into the embedded pipe 1608. After being dispersed and buffered by the porous circular plate 1607, it enters the gas storage buffer tank 15 for temporary storage to relieve the situation of excessive pressure. When the pressure is too low, the air extractor 16010 extracts the hydrogen in the gas storage buffer tank 15 through the extraction 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 outward through the exhaust pipe 8.,

[0046] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. 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 first adsorption tank (3) and the outer wall of the air guide pipe (6) is fixedly connected to a first control valve (7); one end of the first adsorption tank (3) is fixedly connected to an air intake pipe (5), and an obstruction deceleration mechanism (13) and a conduction discharge 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 the outer wall of the exhaust pipe (8) is fixedly connected to a second control valve (9); 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), and 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), and a piston (1304) is slidably connected inside the top-connected straight cylinder (1303); a circular hole is drilled at the top of the top-connected straight cylinder (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-connected 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); the bottom end of the internal tube (1306) is fixedly connected to the top of the air intake pipe (5); The first adsorption tank (3) is fixedly connected to an internal resistance sac (1308), and the internal resistance sac (1308) is located in the air intake pipe (5); the conduction discharge mechanism (14) comprises a release tube (1401) fixedly connected to the top of the first adsorption tank (3); 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); 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); a gear (1405) is sleeved on the outer wall of the rotating long rod (1404); and the outer wall of the gear (1405) is meshingly connected to a rack plate (1406); the bottom end of the rack plate (1406) is fixedly connected to the top of the lifting straight plate (1302).

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 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).

6. The coke oven gas PSA hydrogen production purification equipment with pressure protection according to claim 5, characterized in that: 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).

7. The coke oven gas PSA hydrogen production purification equipment with pressure protection according to claim 5, 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