Novel hydrogen recovery adsorption tower for absorbing hydrogen impurities

Abstract

The invention relates to the field of molecular sieve adsorption towers, in particular to a novel hydrogen recovery adsorption tower for absorbing hydrogen impurities, which comprises a recovery adsorption tower body, a molecular sieve storage cavity, a partition plate, a molecular sieve inlet, a molecular sieve outlet, a water storage cavity, a gas inlet, a gas outlet, a cleaning brush and a water spray distribution head, the lower end of the inner side of the recovery adsorption tower body is fixedly connected with a partition plate; the upper end of the partition plate is provided with a molecular sieve storage cavity for storing molecular sieve raw materials; a molecular sieve feeding hole is formed in the top end of the recovery adsorption tower body; the gas inlet and outlet of the adsorption tower are designed on the side surface, the inlet and outlet of the molecular sieve are designed on the top and the side lower part of the tank body, the whole structure realizes that pipeline installation and molecular sieve replacement do not influence each other, the molecular sieve is separated by using the pore plate, the effect of isolating the molecular sieve from adsorbed water is ingeniously realized, and after accumulation for a period of time, the adsorption effect is greatly improved. Water can be discharged through a bottom ball valve.

Description

Technical Field

[0001] The present invention relates to a novel hydrogen recovery adsorption tower for absorbing hydrogen impurities. Background Art

[0002] The structure of domestic molecular sieve adsorption tower is generally designed in the form of an air inlet and a molecular sieve inlet in the same channel, the interior is filled with molecular sieves, and the structure is relatively simple.

[0003] The hydrogen recovery adsorption tower with this structure has the problem of being inconvenient to replace the molecular sieve, which requires shutdown and disassembly of the front and rear pipes. At the same time, the molecular sieve adsorption tower structure has serious defects in drainage. The water adsorbed by the molecular sieve can only be discharged through the valve of the bottom ventilation pipe after re-liquefaction. The water and the molecular sieve cannot be effectively isolated, and it is also very difficult to operate during subsequent processing.

[0004] Therefore, in order to solve the problem that the molecular sieve is inconvenient to replace after its use period and the attached tower cannot reasonably discharge the moisture adsorbed by the molecular sieve, a new hydrogen recovery adsorption tower for absorbing hydrogen impurities can be designed. Summary of the invention

[0005] In order to overcome the problem that the molecular sieve is inconvenient to replace after its use cycle, and the attached tower cannot reasonably discharge the moisture adsorbed by the molecular sieve.

[0006] The technical solution of the present invention is: a new type of hydrogen recovery adsorption tower for absorbing hydrogen impurities, comprising a recovery adsorption tower body, a molecular sieve storage chamber, a partition, a molecular sieve inlet, a molecular sieve outlet, a water storage chamber, an air inlet, an air outlet, a cleaning brush, and a water spray distribution head; a partition is fixedly connected to the lower end of the inner side of the recovery adsorption tower body; the upper end of the partition is set as a molecular sieve storage chamber for storing molecular sieve raw materials; a molecular sieve inlet is installed at the top of the recovery adsorption tower body; a molecular sieve outlet for discharging molecular sieve raw materials is fixedly connected to the lower side of the right end of the recovery adsorption tower body; the lower end of the partition is set as a water storage chamber for storing water liquefied after molecular sieve adsorption; an air inlet is fixedly connected to the lower side of the front end of the recovery adsorption tower body; an air outlet is fixedly connected to the upper side of the front end of the recovery adsorption tower body; a cleaning brush for cleaning the inner side of the molecular sieve storage chamber during maintenance is installed inside the molecular sieve storage chamber; a water spray distribution head for flushing the inner wall is installed at the top of the inner side of the molecular sieve storage chamber.

[0007] Preferably, in the first step, the molecular sieve is loaded into the molecular sieve storage chamber through the molecular sieve input port, and after the use cycle is over, it is discharged through the molecular sieve outlet, and the gas enters through the air inlet and is discharged from the air outlet on the upper part of the recovery adsorption tower body; In the second step, the adsorption tower cover is fixed at the gas outlet to prevent the molecular sieve from entering the pipeline. The molecular sieve is separated by a partition on the inner side of the recovery adsorption tower body. The water storage cavity under the partition stores the water liquefied after the molecular sieve adsorbs it. After accumulating for a period of time, the drain valve of the drain pipe is opened to discharge it, thus perfectly isolating the molecular sieve replacement from the pipeline installation, and isolating the molecular sieve from the water liquefied after adsorption. The third step is to drain the molecular sieve and draw out the water stored at the lower end of the water spray distribution head to flush the inner wall of the recovery adsorption tower during the overall inspection of the recovery adsorption tower. At the same time, the cleaning brush moves up and down to clean the inner wall of the recovery adsorption tower. The inner wall of the recovery adsorption tower can be quickly maintained. After the treatment, the cleaning effect is good and the maintenance downtime is reduced.

[0008] Preferably, the outer surface of the partition is distributed with through circular holes with the same hole spacing; the partition is designed to be inclined toward one end of the molecular sieve outlet; the water liquefied after adsorption by the molecular sieve passes through the through circular holes of the partition and is centrally stored in the water storage chamber.

[0009] Preferably, the air inlet and the air outlet are both located on the same straight line in the vertical direction and aligned up and down.

[0010] Preferably, both the gas outlet and the gas inlet pipes are "L"-shaped pipes; an adsorption tower cover is installed at the upper end of the gas outlet to prevent the molecular sieve from entering the pipe.

[0011] Preferably, a drain pipe is installed at the rear end of the recovery adsorption tower body in the water storage chamber area; a drain valve for controlling the switch of the drain pipe is arranged inside the drain pipe.

[0012] Preferably, one end of the cleaning brush close to the inner wall is fixedly connected to a movable seat; the end of the movable seat is fixedly connected to a threaded sleeve; the inner side of the threaded sleeve is threadedly connected to a threaded rod; the upper end of the threaded rod is equipped with a driving motor located at the top of the recovery adsorption tower body; the driving motor controls the threaded rod at the lower end to start running, and links the outer threaded sleeve and the cleaning brush to move up and down along the inner wall.

[0013] Preferably, the shape of the support plate of the cleaning brush matches the shape of the molecular sieve storage chamber; bristles are distributed on one end of the cleaning brush close to the inner wall of the molecular sieve storage chamber; the bristles clean the inner wall of the recovery adsorption tower.

[0014] Preferably, a water pump is placed inside the water storage chamber; a water supply pipe is installed on the upper end of the water pump; a water spray distribution head whose shape matches the shape of the molecular sieve storage chamber is installed on the upper end of the water supply pipe; the lower end of the water spray distribution head is connected to circular and equidistantly distributed water spray pipes; the water spray distribution head draws water from the water storage chamber through the water pump connected to the water supply pipe, and the water spray pipe flushes the inner wall of the recovery adsorption tower.

[0015] Beneficial effects of the present invention: Compared with the traditional molecular sieve adsorption tower, the air inlet and the molecular sieve inlet are the same. After a period of use, the molecular sieve needs to be replaced by disassembling the pipeline. The present invention designs the air inlet and outlet of the adsorption tower on the side, and the inlet and outlet of the molecular sieve are designed on the top and the lower side of the tank. An adsorption tower cover is also designed at the air outlet of the upper adsorption tower to prevent the poured molecular sieve from entering the gas pipeline. The overall structure realizes that the pipeline installation and the molecular sieve replacement do not affect each other. The present invention utilizes a perforated plate to separate the molecular sieve, which ingeniously achieves the effect of isolating the molecular sieve from the adsorbed water. After accumulating for a period of time, the water can be discharged through the bottom ball valve. After using the structure of the present invention, the molecular sieve adsorption tower equipment can achieve faster and more convenient maintenance, greatly improving the work efficiency of employees; During subsequent maintenance, the water spray distribution head is used in conjunction with the cleaning brush to clean the inner wall of the recovery adsorption tower. The inner wall of the recovery adsorption tower can be quickly maintained. After treatment, the cleaning effect is good and the maintenance downtime is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Shown is a schematic diagram of the three-dimensional structure of the hydrogen recovery adsorption tower of the present invention; Figure 2 Shown is a schematic diagram of the internal distribution diagram of the molecular sieve of the hydrogen recovery adsorption tower of the present invention; Figure 3 Shown is a schematic diagram of the cross-sectional structure of the hydrogen recovery adsorption tower of the present invention; Figure 4 Shown is a partial schematic diagram of the upper section of the hydrogen recovery adsorption tower of the present invention; Figure 5 Shown is a schematic diagram of the upper cross-sectional structure of the hydrogen recovery adsorption tower of the present invention.

[0017] Explanation of the reference numerals in the accompanying drawings: 1. Recovery adsorption tower body; 2. Molecular sieve storage chamber; 3. Partition; 4. Molecular sieve inlet; 5. Molecular sieve outlet; 6. Water storage chamber; 7. Air inlet; 8. Air outlet; 9. Adsorption tower cover; 10. Drain pipe; 11. Drain valve; 12. Cleaning brush; 13. Water spray distribution head; 14. Driving motor; 15. Threaded rod; 16. Threaded sleeve; 18. Brush; 19. Water pump; 20. Water supply pipe; 21. Through-hole; 22. Moving seat; 24. Water spray pipe. DETAILED DESCRIPTION

[0018] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0019] See also Figure 1-5The present invention provides an embodiment: a novel hydrogen recovery adsorption tower for absorbing hydrogen impurities, comprising a recovery adsorption tower body 1, a molecular sieve storage chamber 2, a partition 3, a molecular sieve inlet 4, a molecular sieve outlet 5, a water storage chamber 6, an air inlet 7, an air outlet 8, a cleaning brush 12, and a water spray distribution head 13; the inner side of the recovery adsorption tower body 1 is fixedly connected to the partition 3 at the lower end; the upper end of the partition 3 is set as a molecular sieve storage chamber 2 for storing molecular sieve raw materials; the top of the recovery adsorption tower body 1 is equipped with a molecular sieve inlet 4; the right end of the recovery adsorption tower body 1 is fixedly connected to the lower side A molecular sieve outlet 5 is used to discharge the molecular sieve raw material; the lower end of the partition 3 is set as a water storage chamber 6 for storing water liquefied after adsorption by the molecular sieve; an air inlet 7 is fixedly connected to the lower side of the front end of the recovery adsorption tower body 1; an air outlet 8 is fixedly connected to the upper side of the front end of the recovery adsorption tower body 1; a cleaning brush 12 is installed on the inner side of the molecular sieve storage chamber 2 for cleaning the inner side of the molecular sieve storage chamber 2 during maintenance; a water spray distribution head 13 is installed on the top of the inner side of the molecular sieve storage chamber 2 for flushing the inner wall; the air inlet 7 and the air outlet 8 are both located on the same straight line in the vertical direction and aligned up and down.

[0020] See also Figure 2 In this embodiment, both the air outlet 8 and the air inlet 7 pipes are "L"-shaped pipes; an adsorption tower cover 9 for preventing the molecular sieve from entering the pipe is installed at the upper end of the air outlet 8; a drain pipe 10 is installed at the rear end of the recovery adsorption tower body 1 in the water storage chamber 6 area; a drain valve 11 for controlling the switch of the drain pipe 10 is arranged inside the drain pipe 10.

[0021] See also Figure 4 In this embodiment, a moving seat 22 is fixedly connected to one end of the cleaning brush 12 near the inner wall; a threaded sleeve 16 is fixedly connected to the end of the moving seat 22; a threaded rod 15 is threadedly connected to the inner side of the threaded sleeve 16; a driving motor 14 located at the top of the recovery adsorption tower body 1 is installed on the upper end of the threaded rod 15; the driving motor 14 controls the threaded rod 15 at the lower end to start running, and the threaded sleeve 16 and the cleaning brush 12 at the outer side are linked to move up and down along the inner wall; the shape of the supporting plate of the cleaning brush 12 matches the shape of the molecular sieve storage chamber 2; bristles 18 are distributed on one end of the cleaning brush 12 near the inner wall of the molecular sieve storage chamber 2; the bristles 18 clean the inner wall of the recovery adsorption tower.

[0022] See also Figure 5In the present embodiment, a water pump 19 is placed inside the water storage chamber 6; a water supply pipe 20 is installed on the upper end of the water pump 19; a water spray distribution head 13 whose shape matches the shape of the molecular sieve storage chamber 2 is installed on the upper end of the water supply pipe 20; the lower end of the water spray distribution head 13 is connected with a ring-shaped equidistantly distributed water spray pipe 24; the water spray distribution head 13 extracts water from the water storage chamber 6 through the water pump 19 connected to the water supply pipe 20, and the water spray pipe 24 flushes the inner wall of the recovery adsorption tower; in the present embodiment, the outer surface of the partition 3 is distributed with through circular holes 21 with the same hole spacing; the partition 3 adopts an inclined design toward one end of the molecular sieve outlet 5; the water liquefied after the molecular sieve adsorbs passes through the through circular holes 21 of the partition 3 and is centrally stored in the water storage chamber 6.

[0023] During operation, in the first step, the molecular sieve is loaded into the molecular sieve storage chamber 2 through the molecular sieve input port 4, and after the use cycle is over, it is discharged through the molecular sieve outlet 5, and the gas enters through the air inlet 7 and is discharged through the air outlet 8 on the upper part of the recovery adsorption tower body 1.

[0024] In the second step, the adsorption tower cover 9 is fixed at the position of the air outlet 8 to prevent the molecular sieve from entering the pipeline. The molecular sieve is separated by the partition 3 on the inner side of the recovery adsorption tower body 1. The water liquefied after the molecular sieve adsorbs passes through the through circular hole 21 of the partition 3 and is stored in the water storage chamber 6. After accumulating for a period of time, the drain valve 11 of the drain pipe 10 is opened to discharge it, thereby perfectly isolating the molecular sieve replacement from the pipeline installation and isolating the molecular sieve from the water liquefied after adsorption.

[0025] In the third step, when the recovery adsorption tower is overhauled as a whole, the molecular sieve can be emptied, the water spray distribution head 13 draws water from the water storage chamber 6 through the water pump 19 connected to the upper water pipe 20, and the water spray pipe 24 flushes the inner wall of the recovery adsorption tower. At the same time, the driving motor 14 controls the threaded rod 15 at the lower end to start running, and the threaded sleeve 16 and the cleaning brush 12 on the outside are linked to move up and down along the inner wall, and the bristles 18 clean the inner wall of the recovery adsorption tower, and the inner wall of the recovery adsorption tower is quickly maintained.

[0026] Through the above steps, the air inlet and outlet of the adsorption tower are designed on the side, the inlet and outlet of the molecular sieve are designed on the top and lower side of the tank body, and an adsorption tower cover 9 is also designed at the air outlet of the upper adsorption tower to prevent the poured molecular sieve from entering the gas pipeline. The overall structure realizes that the pipeline installation and the molecular sieve replacement do not affect each other; The present invention utilizes a perforated plate to separate the molecular sieve, which ingeniously achieves the effect of isolating the molecular sieve from the adsorbed water. After accumulating for a period of time, the water can be discharged through the bottom ball valve. After using the structure of the present invention, the molecular sieve adsorption tower equipment can achieve faster and more convenient maintenance, greatly improving the work efficiency of employees; During subsequent maintenance, the water spray distribution head 13 is used in conjunction with the cleaning brush 12 to clean the inner wall of the recovery adsorption tower, and the inner wall of the recovery adsorption tower is quickly maintained. After the treatment, the cleaning effect is good, and the maintenance downtime is reduced.

Claims

1. A novel hydrogen recovery adsorption tower for absorbing hydrogen impurities, comprising a recovery adsorption tower body (1); characterized in that: The recovery adsorption tower also comprises a molecular sieve storage chamber (2), a partition (3), a molecular sieve input port (4), a molecular sieve outlet (5), a water storage chamber (6), an air inlet (7), an air outlet (8), a cleaning brush (12), and a water spray distribution head (13); the partition (3) is fixedly connected to the lower end of the inner side of the recovery adsorption tower body (1); the upper end of the partition (3) is provided as a molecular sieve storage chamber (2) for storing molecular sieve raw materials; the molecular sieve input port (4) is installed at the top of the recovery adsorption tower body (1); a water storage chamber (6) is fixedly connected to the lower side of the right end of the recovery adsorption tower body (1) for discharging the molecular sieve raw materials; A molecular sieve outlet (5) for discharging molecular sieve raw materials; a water storage chamber (6) is provided at the lower end of the partition (3) for storing water liquefied after adsorption by the molecular sieve; an air inlet (7) is fixedly connected to the lower side of the front end of the recovery adsorption tower body (1); an air outlet (8) is fixedly connected to the upper side of the front end of the recovery adsorption tower body (1); a cleaning brush (12) is installed inside the molecular sieve storage chamber (2) for cleaning the inside of the molecular sieve storage chamber (2) during maintenance; and a water spray distribution head (13) is installed at the top of the inner side of the molecular sieve storage chamber (2) for flushing the inner wall.

2. The novel hydrogen recovery adsorption tower for absorbing hydrogen impurities according to claim 1 is characterized in that: The outer surface of the partition (3) is provided with through circular holes (21) with the same hole spacing; the partition (3) is designed to be inclined toward one end of the molecular sieve outlet (5).

3. The novel hydrogen recovery adsorption tower for absorbing hydrogen impurities according to claim 1 is characterized in that: The air inlet (7) and the air outlet (8) are both located on the same straight line in the vertical direction and aligned up and down.

4. The novel hydrogen recovery adsorption tower for absorbing hydrogen impurities according to claim 1 is characterized in that: The gas outlet (8) and the gas inlet (7) pipelines are both "L"-shaped pipelines; an adsorption tower cover (9) is installed at the upper end of the gas outlet (8) to prevent the molecular sieve from entering the pipeline.

5. The novel hydrogen recovery adsorption tower for absorbing hydrogen impurities according to claim 1 is characterized in that: A drainage pipe (10) is installed at the rear end of the recovery adsorption tower body (1) in the water storage chamber (6); a drainage valve (11) for controlling the opening and closing of the drainage pipe (10) is provided inside the drainage pipe (10).

6. The novel hydrogen recovery adsorption tower for absorbing hydrogen impurities according to claim 1 is characterized in that: One end of the cleaning brush (12) close to the inner wall is fixedly connected to a movable seat (22); the end of the movable seat (22) is fixedly connected to a threaded sleeve (16); the inner side of the threaded sleeve (16) is threadedly connected to a threaded rod (15); and the upper end of the threaded rod (15) is mounted with a driving motor (14) located at the top of the recovery adsorption tower body (1).

7. The novel hydrogen recovery adsorption tower for absorbing hydrogen impurities according to claim 1 is characterized in that: The shape of the support plate of the cleaning brush (12) matches the shape of the molecular sieve storage cavity (2); and bristles (18) are distributed at one end of the cleaning brush (12) close to the inner wall of the molecular sieve storage cavity (2).

8. The novel hydrogen recovery adsorption tower for absorbing hydrogen impurities according to claim 1 is characterized in that: A water pump (19) is placed inside the water storage chamber (6); a water supply pipe (20) is installed at the upper end of the water pump (19); a water spray distribution head (13) whose shape matches the shape of the molecular sieve storage chamber (2) is installed at the upper end of the water supply pipe (20); and the lower end of the water spray distribution head (13) is connected to annular equidistantly distributed water spray pipes (24).

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