A pressure vessel apparatus for purifying hydrogen from a PSA

Abstract

The application discloses a kind of PSA purified hydrogen pressure vessel devices, it is related to pressure vessel technical field.This kind of PSA purified hydrogen pressure vessel device, including multiple pressure vessel bodies, gas outlet pipeline, gas inlet pipeline and gas extraction pipeline, the sidewall of pressure vessel body is connected with lifting ring by lifting mechanism, and the bottom of lifting ring is rotatably connected with rotating ring by drive mechanism, the bottom of rotating ring is fixedly connected with mounting plate, and the sidewall of mounting plate is connected with moving plate by telescopic mechanism, the sidewall of moving plate is fixedly connected with fixed cylinder, and ultrasonic probe is fixedly connected in fixed cylinder.This kind of PSA purified hydrogen pressure vessel device can ensure that the distance between ultrasonic probe and pressure vessel body is constant, which facilitates uniform application of coupling agent on the surface of pressure vessel body, is more convenient and efficient, ensures the efficiency and quality of detection, and facilitates recycling of coupling agent, reduces detection cost.

Description

Technical Field

[0001] This invention relates to the field of pressure vessel technology, specifically to a pressure vessel device for purifying hydrogen using PSA (Pressure Pressure Aerator). Background Technology

[0002] Pressure swing adsorption (PSA) hydrogen purification pressure vessel units are core equipment for the large-scale industrial production of high-purity hydrogen (purity up to 99.9%-99.999%). The core consists of an adsorption tower and supporting systems, suitable for hydrogen purification scenarios using feedstock gases such as natural gas reforming, methanol cracking, and refinery gas. The adsorption tower, a vertical cylindrical pressure vessel, is the main pressure vessel and core functional carrier, typically made of carbon steel or stainless steel. The tower is filled with an adsorbent bed (such as molecular sieves, activated carbon, or alumina) from top to bottom. A gas distributor is installed at the bottom of the bed to ensure uniform contact between the feedstock gas and the adsorbent. Filter layers are installed at the top and bottom to prevent adsorbent dust loss. The tower is equipped with safety valves, pressure gauges, differential pressure gauges, and other safety accessories, meeting pressure vessel specifications.

[0003] CN112758892B discloses a pressure swing adsorption (PSA) system and method for purifying hydrogen. When the product hydrogen requires strict control of CO, CO2, and CH4, nitrogen is added to the feed gas to adjust the proportion of various impurities in the feed gas. This ensures that the molar content of hydrogen in the product is above 99.9% while increasing the hydrogen recovery rate. For every 1% increase in nitrogen in the feed gas flow rate, the hydrogen recovery rate can increase by 0.3 to 2 percentage points. Compared with conventional PSA systems for purifying hydrogen, this method is suitable not only for new installations but also for retrofitting existing installations. Pressure vessels require regular ultrasonic testing during use. The core function is to use ultrasonic waves to penetrate the metal wall and accurately detect internal and surface defects generated during manufacturing or use, thus preventing safety accidents caused by vessel failure.

[0004] However, existing PSA hydrogen purification pressure vessel devices are inconvenient for ultrasonic testing of the pressure vessel during use. At the same time, it is inconvenient to apply coupling agent during testing, which affects the efficiency and quality of testing. Furthermore, it is inconvenient to recycle and reuse the applied coupling agent, resulting in waste of coupling agent and increased testing costs. Summary of the Invention

[0005] The purpose of this invention is to provide a pressure vessel device for purifying hydrogen using PSA (Pressure Pressure Aerator) to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a pressure vessel device for purifying hydrogen using PSA, comprising multiple pressure vessel bodies, an outlet pipe, an inlet pipe, and an extraction pipe. A lifting ring is connected to the side wall of each pressure vessel body via a lifting mechanism, and a rotating ring is rotatably connected to the bottom of the lifting ring via a driving mechanism. A mounting plate is fixedly connected to the bottom of the rotating ring, and a movable plate is connected to the side wall of the mounting plate via a telescopic mechanism. A fixed cylinder is fixedly connected to the side wall of the movable plate, and an ultrasonic probe is fixedly connected inside the fixed cylinder. Multiple ball bearings are provided at the end of the fixed cylinder. A coating mechanism for applying and recovering coupling agent to the surface of the pressure vessel body is provided on the side wall of the mounting plate.

[0007] Preferably, the coating mechanism includes a storage tank fixedly connected to the side wall of the mounting plate, and a micro pump is fixedly connected to the side wall of the storage tank. The outlet of the micro pump is connected to a rubber cover via a hose, and a lifting block is connected to the top of the moving plate via a lifting module. The rubber cover is fixed to the lifting block via a connecting frame. The side wall of the storage tank is provided with a recycling component for recycling the coupling agent after coating.

[0008] Preferably, the recycling component includes a scraper hood, the bottom of which is connected to a storage tank via a fixed pipe. A one-way valve is installed inside the fixed pipe, and a stop block is fixedly connected to the bottom of the scraper hood. A squeezing plate is inserted into the top of the scraper hood, and the squeezing plate is fixed to the side wall of the lifting block via a connecting block. A filter membrane is installed inside the storage tank.

[0009] Preferably, the side wall of the movable plate is provided with a cleaning mechanism for cleaning the surface of the pressure vessel body. The cleaning mechanism includes a lifting plate, and multiple brushes are fixedly connected to the side wall of the lifting plate. The lifting plate is connected to the top of the movable plate through a lifting assembly.

[0010] Preferably, the lifting assembly includes two T-shaped guide rods fixedly connected to the top of the movable plate, and a slider is sleeved on the side wall of the T-shaped guide rod. The slider is fixed to the side wall of the lifting plate, and two first springs are sleeved on the side wall of each T-shaped guide rod. An L-shaped frame is fixedly connected to the side wall of the lifting block, and a spring telescopic sleeve rod is fixedly connected to the side wall of the L-shaped frame. Multiple triangular blocks are fixedly connected to the side wall of the lifting plate, and the end of the spring telescopic sleeve rod can slide on the side wall of the triangular blocks.

[0011] Preferably, the telescopic mechanism includes two sleeves fixedly connected to the side wall of the mounting plate, and a moving rod is inserted into each sleeve. The other end of the moving rod is fixed to the side wall of the moving plate, and a second spring is sleeved on the side wall of each sleeve. A detection component is provided between the moving plate and the mounting plate, and the detection component is used to detect the distance between the moving plate and the mounting plate.

[0012] Preferably, the detection component includes scale markings on the side wall of the mounting plate, and a mounting bracket is fixedly connected to the side wall of the mounting plate. A vision sensor is fixedly connected to the side wall of the mounting bracket, and a pointer is rotatably connected to the side wall of the mounting plate via a pivot. The rotation of the pointer is driven by a pushing component.

[0013] Preferably, the pushing component includes a groove formed on the side wall of the pointer, and a connecting plate is fixedly connected to the side wall of the moving plate. A pushing pin is fixedly connected to the side wall of the connecting plate, and the pushing pin is inserted into the groove.

[0014] Preferably, the lifting mechanism includes multiple sets of first fixing blocks fixedly connected to the top of the lifting ring, and each set of first fixing blocks has two blocks. A first motor is fixedly connected to the side wall of each first fixing block, and a first rubber wheel is fixedly connected to the output end of the first motor. The first rubber wheel abuts against the side wall of the pressure vessel body.

[0015] Preferably, the driving mechanism includes a second fixing block fixedly connected to the side wall of the lifting ring, and a second motor fixedly connected to the top of the second fixing block. A second rubber wheel is fixedly connected to the output end of the second motor, and the second rubber wheel abuts against the side wall of the rotating ring.

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

[0017] This pressure vessel device for purifying hydrogen using PSA, through the inclusion of a coating mechanism, ensures a constant distance between the ultrasonic probe and the pressure vessel body. Furthermore, it facilitates the even application of coupling agent to the surface of the pressure vessel body before testing, making the process more convenient and efficient, ensuring both testing efficiency and quality. Additionally, it allows for easy recycling and reuse of the coupling agent after testing, reducing testing costs. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the overall structure of the lifting ring in this invention;

[0020] Figure 3 This is a schematic diagram of the overall structure of the mounting plate in this invention;

[0021] Figure 4 This is a schematic diagram showing the location of the recycling mechanism in this invention;

[0022] Figure 5 This is a schematic diagram of the triangular block structure in this invention;

[0023] Figure 6 This is a schematic diagram of the scraper cover in this invention;

[0024] Figure 7 This is a schematic diagram of the lifting mechanism in this invention;

[0025] Figure 8 This is a schematic diagram of the detection component in this invention.

[0026] In the diagram: 101, Pressure vessel body; 102, Outlet pipe; 103, Inlet pipe; 104, Extraction pipe; 201, Sleeve; 202, Moving rod; 203, Second spring; 301, Scale marking; 302, Mounting bracket; 303, Vision sensor; 304, Rotating shaft; 305, Pointer; 401, Slide groove; 402, Push pin; 403, Connecting plate; 501, Storage tank; 502, Micro pump; 503, Rubber cover; 504, Lifting module; 505, Lifting block; 506, Connecting frame; 507, Hoses; 601, Fixed pipe; 602, Scraper cover; 603, Stop; 604, Extrusion Plate; 605, Connecting Block; 701, Lifting Plate; 702, Brush; 801, T-shaped Guide Rod; 802, Slider; 803, First Spring; 804, L-shaped Frame; 805, Spring Telescopic Sleeve Rod; 806, Triangular Block; 901, First Fixed Block; 902, First Motor; 903, First Rubber Wheel; 1001, Second Fixed Block; 1002, Second Motor; 1003, Second Rubber Wheel; 11, Lifting Ring; 12, Rotating Ring; 13, Mounting Plate; 14, Moving Plate; 15, Fixed Cylinder; 16, Ultrasonic Probe; 17, Ball Bearing. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] Please see Figures 1-8This invention provides a pressure vessel device for purifying hydrogen using PSA, comprising multiple pressure vessel bodies 101, an outlet pipe 102, an inlet pipe 103, and an extraction pipe 104. A lifting ring 11 is connected to the side wall of each pressure vessel body 101 via a lifting mechanism. A rotating ring 12 is rotatably connected to the bottom of the lifting ring 11 via a driving mechanism. A mounting plate 13 is fixedly connected to the bottom of the rotating ring 12. A movable plate 14 is connected to the side wall of the mounting plate 13 via a telescopic mechanism. A fixed cylinder is fixedly connected to the side wall of the movable plate 14. 15, and an ultrasonic probe 16 is fixedly connected inside the fixed cylinder 15. Multiple balls 17 are provided at the end of the fixed cylinder 15. The side wall of the mounting plate 13 is provided with a coating mechanism for applying and recycling coupling agent to the surface of the pressure vessel body 101. This ensures that the distance between the ultrasonic probe 16 and the pressure vessel body 101 is constant, making it easier to apply the coupling agent evenly to the surface of the pressure vessel body 101. This is more convenient and faster, ensuring the efficiency and quality of the test. Furthermore, it facilitates the recycling and reuse of the coupling agent, reducing the test cost.

[0029] Please see Figure 3 and Figure 4 The coating mechanism includes a storage tank 501 fixedly connected to the side wall of the mounting plate 13, and a micro pump 502 fixedly connected to the side wall of the storage tank 501. The outlet of the micro pump 502 is connected to a rubber cover 503 via a hose 507. The top of the moving plate 14 is connected to a lifting block 505 via a lifting module 504. The rubber cover 503 is fixed to the lifting block 505 via a connecting frame 506. The side wall of the storage tank 501 is provided with a recovery component for recovering the coupling agent after coating. When the micro pump 502 is started, the coupling agent temporarily stored in the storage tank 501 can enter the rubber cover 503 through the hose 507 and then be coated on the surface of the pressure vessel body 101. The lifting module 504 can drive the lifting block 505 to move up and down, and the connecting frame 506 can drive the rubber cover 503 to move up and down, so that the coupling agent can be evenly coated on the surface of the pressure vessel body 101, which is more convenient and faster, and ensures the accuracy of subsequent ultrasonic probe 16 detection.

[0030] Please see Figure 4 and Figure 6The recycling assembly includes a scraper hood 602, the bottom of which is connected to a storage tank 501 via a fixing pipe 601. A one-way valve is installed inside the fixing pipe 601. A stop block 603 is fixedly connected to the bottom of the scraper hood 602. A squeezing plate 604 is inserted into the top of the scraper hood 602, and the squeezing plate 604 is fixed to the side wall of a lifting block 505 via a connecting block 605. A filter membrane is installed inside the storage tank 501. After testing, the scraper hood 602 can scrape off the coupling agent from the surface of the pressure vessel body 101. Furthermore, when the lifting block 505 is raised or lowered, it can drive the extrusion plate 604 to be raised or lowered via the connecting block 605. When the extrusion plate 604 moves downward, it can push the coupling agent scraped out in the scraper hood 602 downward. When it moves to the bottom of the scraper hood 602, under the action of the stop block 603, the extrusion plate 604 can squeeze the coupling agent. At the same time, the one-way valve opens, allowing the scraped coupling agent to enter the storage tank 501 through the fixed pipe 601 and be filtered through the filter membrane, thereby facilitating the recycling and reuse of the coupling agent and reducing the testing cost.

[0031] As a supplement, a small transfer pump (such as a micro gear pump or peristaltic pump) is also provided on the fixed pipe 601. The small transfer pump can transport the coupling agent recovered at the stop 603 along the fixed pipe 601 to the storage tank 501, thereby ensuring that the coupling agent is reliably recovered to the storage tank 501.

[0032] Please see Figure 3 and Figure 5 The side wall of the movable plate 14 is provided with a cleaning mechanism for cleaning the surface of the pressure vessel body 101. The cleaning mechanism includes a lifting plate 701, and multiple brushes 702 are fixedly connected to the side wall of the lifting plate 701. The lifting plate 701 is connected to the top of the movable plate 14 through a lifting assembly. During testing, the brushes 702 can clean the surface of the pressure vessel body 101, making the test results more accurate. At the same time, the lifting assembly makes the lifting plate 701 and the brushes 702 move up and down reciprocally, making the cleaning more efficient and effective.

[0033] Please see Figures 3-5The lifting assembly includes two T-shaped guide rods 801 fixedly connected to the top of the movable plate 14, and a slider 802 is sleeved on the side wall of the T-shaped guide rod 801. The slider 802 is fixed to the side wall of the lifting plate 701, and two first springs 803 are sleeved on the side wall of each T-shaped guide rod 801. An L-shaped frame 804 is fixedly connected to the side wall of the lifting block 505, and a spring telescopic sleeve rod 805 is fixedly connected to the side wall of the L-shaped frame 804. A plurality of triangular blocks 806 are fixedly connected to the side wall of the lifting plate 701, and the end of the spring telescopic sleeve rod 805 can reach the triangular block 806. The side wall slides, and the lifting module 504 drives the lifting block 505 to move downward, and the L-shaped frame 804 drives the spring telescopic sleeve 805 to move downward. When the spring telescopic sleeve 805 abuts against the triangular block 806, it can push the lifting plate 701 to move downward. The first spring 803 deforms. When the spring telescopic sleeve 805 retracts and passes the triangular block 806, the lifting plate 701 can move upward and reset under the action of the first spring 803. This process is repeated so that the lifting plate 701 drives the brush 702 to move up and down, making the cleaning efficiency higher and the effect better.

[0034] Please see Figure 3 The telescopic mechanism includes two sleeves 201 fixedly connected to the side wall of the mounting plate 13, and a moving rod 202 is inserted into each sleeve 201. The other end of the moving rod 202 is fixed to the side wall of the moving plate 14, and a second spring 203 is sleeved on the side wall of each sleeve 201. A detection component is provided between the moving plate 14 and the mounting plate 13, and the detection component is used to detect the distance between the moving plate 14 and the mounting plate 13. When the rotating ring 12 rotates, it can drive the mounting plate 13 to rotate, and drive the moving plate 14 to rotate through the telescopic mechanism. Then, it drives the ultrasonic probe 16 to rotate through the fixed cylinder 15. The ball 17 can roll on the surface of the air outlet pipe 102. Under the action of the second spring 203, the ball 17 can always be in contact with the surface of the pressure vessel body 101, ensuring that the distance between the ultrasonic probe 16 and the pressure vessel body 101 is constant, which is more convenient and faster, and can improve the efficiency and effect of detection.

[0035] Please see Figure 3 and Figure 8The detection component includes a scale mark 301 disposed on the side wall of the mounting plate 13, and a mounting bracket 302 is fixedly connected to the side wall of the mounting plate 13. A vision sensor 303 is fixedly connected to the side wall of the mounting bracket 302, and a pointer 305 is rotatably connected to the side wall of the mounting plate 13 via a rotating shaft 304. The rotation of the pointer 305 is driven by a pushing component. When there are dents and bulges on the surface of the pressure vessel body 101, the moving plate 14 can be moved, the distance between the moving plate 14 and the mounting plate 13 changes, and the pointer 305 is driven to rotate along the rotating shaft 304 by the pushing component. The change of the scale mark 301 indicated by the pointer 305 can be observed by the vision sensor 303.

[0036] Please see Figure 8 The pushing component includes a groove 401 formed on the side wall of the pointer 305, and a connecting plate 403 is fixedly connected to the side wall of the moving plate 14. A pushing pin 402 is fixedly connected to the side wall of the connecting plate 403, and the pushing pin 402 is inserted into the groove 401. When the distance between the moving plate 14 and the mounting plate 13 changes, the pushing pin 402 can be driven to slide in the groove 401 through the connecting plate 403, thereby pushing the pointer 305 to rotate along the rotating shaft 304.

[0037] Please see Figure 7 The lifting mechanism includes multiple sets of first fixing blocks 901 fixedly connected to the top of the lifting ring 11, and each set of first fixing blocks 901 has two blocks. A first motor 902 is fixedly connected to the side wall of each first fixing block 901, and a first rubber wheel 903 is fixedly connected to the output end of the first motor 902. The first rubber wheel 903 abuts against the side wall of the pressure vessel body 101. When the first motor 902 is started, the rotation of the first motor 902 drives the rotation of the first rubber wheel 903, thereby driving the lifting ring 11 to rise and fall along the side wall of the pressure vessel body 101.

[0038] Please see Figure 7 The driving mechanism includes a second fixing block 1001 fixedly connected to the side wall of the lifting ring 11, and a second motor 1002 fixedly connected to the top of the second fixing block 1001. A second rubber wheel 1003 is fixedly connected to the output end of the second motor 1002, and the second rubber wheel 1003 abuts against the side wall of the rotating ring 12. When the second motor 1002 is started, the second rubber wheel 1003 is driven to rotate, which in turn drives the rotating ring 12 to rotate at the bottom of the lifting ring 11. When the rotating ring 12 rotates, it can drive the mounting plate 13 to rotate, and drive the moving plate 14 to rotate through the telescopic mechanism, which in turn drives the ultrasonic probe 16 to rotate through the fixed cylinder 15.

[0039] Working principle: When it is necessary to inspect the pressure vessel body 101 during use, the first motor 902 is started. The rotation of the first motor 902 drives the rotation of the first rubber wheel 903, which in turn drives the lifting ring 11 to rise and fall along the side wall of the pressure vessel body 101.

[0040] At the same time, the second motor 1002 is started, driving the second rubber wheel 1003 to rotate, which in turn drives the rotating ring 12 to rotate at the bottom of the lifting ring 11. When the rotating ring 12 rotates, it can drive the mounting plate 13 to rotate, and through the telescopic mechanism, it can drive the moving plate 14 to rotate, which in turn drives the ultrasonic probe 16 to rotate through the fixed cylinder 15. The ball 17 can roll on the surface of the air outlet pipe 102. Under the action of the second spring 203, the ball 17 can always be in contact with the surface of the pressure vessel body 101, ensuring that the distance between the ultrasonic probe 16 and the pressure vessel body 101 is constant, which is more convenient and faster, and can improve the efficiency and effect of detection.

[0041] During testing, the brush 702 cleans the surface of the pressure vessel body 101, making the test results more accurate. At the same time, the lifting module 504 drives the lifting block 505 to move downward, and the L-shaped frame 804 drives the spring telescopic sleeve 805 to move downward. When the spring telescopic sleeve 805 abuts against the triangular block 806, it can push the lifting plate 701 to move downward, and the first spring 803 deforms. When the spring telescopic sleeve 805 retracts and passes the triangular block 806, the lifting plate 701 can move upward and reset under the action of the first spring 803. This process is repeated so that the lifting plate 701 drives the brush 702 to move up and down, making the cleaning more efficient and effective.

[0042] Specifically, when the lifting module 504 moves the lifting block 505 and the L-shaped frame 804 fixed thereto downwards, the spring telescopic sleeve 805 moves downwards accordingly. When the end of the spring telescopic sleeve 805 contacts the inclined surface of a triangular block 806, the contact force can be decomposed into two components due to the effect of the inclined surface: one component perpendicular to the downward slope, which pushes the triangular block 806 and the lifting plate 701 fixed thereto to overcome the elastic force of the first spring 803 and move downwards, compressing the first spring 803 to store elastic potential energy; the other component is a transverse force parallel to the inclined surface, which causes the spring telescopic sleeve 805 to contract itself to adapt to the change of the inclined surface.

[0043] As the L-shaped frame 804 continues to descend, the end of the spring telescopic sleeve 805 slides along the inclined plane of the triangular block 806 until it passes its apex. Once past the apex, the spring telescopic sleeve 805 separates from the triangular block 806, and its downward thrust on the lifting plate 701 instantly disappears. At this moment, the compressed first spring 803 releases its stored elastic potential energy, pushing the lifting plate 701 along with the brush 702 to quickly move upward and reset.

[0044] Because the L-shaped frame 804 moves continuously in one direction (downward or upward) driven by the lifting block 505, and multiple triangular blocks 806 are provided on the side wall of the lifting plate 701, the spring telescopic sleeve 805 will repeatedly perform the above-mentioned "contact, press down, separate, reset" cycle with the multiple triangular blocks 806 during the descent. Each cycle corresponds to the brush 702 completing one rapid downward sweep and upward reciprocating motion. This design, using a simple mechanical structure and spring cooperation, realizes continuous and automatic up-and-down reciprocating cleaning of the brush 702 during the inspection process, significantly improving the cleaning efficiency and cleaning effect on the surface of the pressure vessel body 101, and providing a cleaner surface condition for subsequent ultrasonic testing.

[0045] During testing, the micro pump 502 is activated, allowing the coupling agent temporarily stored in the storage tank 501 to enter the rubber cover 503 through the hose 507. Then, it is applied to the surface of the pressure vessel body 101. Furthermore, the lifting module 504 drives the lifting block 505 to rise and fall, and the connecting frame 506 drives the rubber cover 503 to rise and fall, so that the coupling agent can be evenly applied to the surface of the pressure vessel body 101, which is more convenient and faster, and ensures the accuracy of subsequent ultrasonic probe 16 testing.

[0046] After the test is completed, the scraper 602 can scrape off the coupling agent on the surface of the pressure vessel body 101. When the lifting block 505 moves up and down, it can drive the extrusion plate 604 to move up and down through the connecting block 605. When the extrusion plate 604 moves downward, it can push the coupling agent scraped off in the scraper 602 downward. When it moves to the bottom of the scraper 602, under the action of the stop block 603, the extrusion plate 604 can extrude the coupling agent. At the same time, the one-way valve opens, allowing the scraped coupling agent to enter the storage tank 501 through the fixed pipe 601 and be filtered through the filter membrane, thereby facilitating the recycling and reuse of the coupling agent and reducing the test cost.

[0047] All standard parts used in this invention can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0048] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the invention, such designs should fall within the protection scope of the present invention.

Claims

1. A pressure vessel device for purifying hydrogen using PSA, comprising multiple pressure vessel bodies (101), an outlet pipe (102), an inlet pipe (103), and an extraction pipe (104), characterized in that: The side wall of the pressure vessel body (101) is connected to a lifting ring (11) via a lifting mechanism, and the bottom of the lifting ring (11) is rotatably connected to a rotating ring (12) via a driving mechanism. The bottom of the rotating ring (12) is fixedly connected to a mounting plate (13), and the side wall of the mounting plate (13) is connected to a moving plate (14) via a telescopic mechanism. The side wall of the moving plate (14) is fixedly connected to a fixed cylinder (15), and an ultrasonic probe (16) is fixedly connected inside the fixed cylinder (15). The end of the fixed cylinder (15) is provided with multiple balls (17), and the side wall of the mounting plate (13) is provided with a coating mechanism for applying and recovering coupling agent on the surface of the pressure vessel body (101). The coating mechanism includes a storage tank (501) fixedly connected to the side wall of the mounting plate (13), and a micro pump (502) fixedly connected to the side wall of the storage tank (501). The outlet of the micro pump (502) is connected to a rubber cover (503) through a hose (507). The top of the moving plate (14) is connected to a lifting block (505) through a lifting module (504). The rubber cover (503) is fixed to the lifting block (505) through a connecting frame (506). The side wall of the storage tank (501) is provided with a recycling component for recycling the coupling agent after coating. The recycling assembly includes a scraper hood (602), and the bottom of the scraper hood (602) is connected to the storage tank (501) through a fixed pipe (601). A one-way valve is provided in the fixed pipe (601), and a stop block (603) is fixedly connected to the bottom of the scraper hood (602). A squeezing plate (604) is inserted into the top of the scraper hood (602), and the squeezing plate (604) is fixed to the side wall of the lifting block (505) through a connecting block (605). A filter membrane is provided in the storage tank (501). The side wall of the movable plate (14) is provided with a cleaning mechanism for cleaning the surface of the pressure vessel body (101). The cleaning mechanism includes a lifting plate (701), and multiple brushes (702) are fixedly connected to the side wall of the lifting plate (701). The lifting plate (701) is connected to the top of the movable plate (14) through a lifting assembly. The lifting assembly includes two T-shaped guide rods (801) fixedly connected to the top of the movable plate (14), and a slider (802) is sleeved on the side wall of the T-shaped guide rod (801). The slider (802) is fixed to the side wall of the lifting plate (701), and two first springs (803) are sleeved on the side wall of each T-shaped guide rod (801). An L-shaped frame (804) is fixedly connected to the side wall of the lifting block (505), and a spring telescopic sleeve rod (805) is fixedly connected to the side wall of the L-shaped frame (804). A plurality of triangular blocks (806) are fixedly connected to the side wall of the lifting plate (701), and the end of the spring telescopic sleeve rod (805) can slide on the side wall of the triangular block (806). The telescopic mechanism includes two sleeves (201) fixedly connected to the side wall of the mounting plate (13), and a moving rod (202) is inserted in each sleeve (201). The other end of the moving rod (202) is fixed to the side wall of the moving plate (14), and a second spring (203) is sleeved on the side wall of each sleeve (201). A detection component is provided between the moving plate (14) and the mounting plate (13), and the detection component is used to detect the distance between the moving plate (14) and the mounting plate (13). The detection component includes a scale mark (301) set on the side wall of the mounting plate (13), and a mounting bracket (302) is fixedly connected to the side wall of the mounting plate (13). A vision sensor (303) is fixedly connected to the side wall of the mounting bracket (302), and a pointer (305) is rotatably connected to the side wall of the mounting plate (13) via a rotating shaft (304). The rotation of the pointer (305) is driven by a pushing component.

2. The pressure vessel device for PSA hydrogen purification according to claim 1, characterized in that: The pushing component includes a groove (401) formed on the side wall of the pointer (305), and a connecting plate (403) is fixedly connected to the side wall of the moving plate (14). A push pin (402) is fixedly connected to the side wall of the connecting plate (403), and the push pin (402) is inserted into the groove (401).

3. The pressure vessel device for PSA hydrogen purification according to claim 1, characterized in that: The lifting mechanism includes multiple sets of first fixing blocks (901) fixedly connected to the top of the lifting ring (11), and each set of first fixing blocks (901) has two blocks. A first motor (902) is fixedly connected to the side wall of each first fixing block (901), and a first rubber wheel (903) is fixedly connected to the output end of the first motor (902). The first rubber wheel (903) abuts against the side wall of the pressure vessel body (101).

4. A pressure vessel device for purifying hydrogen using PSA according to claim 1, characterized in that: The driving mechanism includes a second fixed block (1001) fixedly connected to the side wall of the lifting ring (11), and a second motor (1002) fixedly connected to the top of the second fixed block (1001). A second rubber wheel (1003) is fixedly connected to the output end of the second motor (1002), and the second rubber wheel (1003) abuts against the side wall of the rotating ring (12).

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