Separating tower for producing hydrogen from methanol

Abstract

The utility model provides a separation tower for methanol-to-hydrogen, which relates to the technical field of methanol-to-hydrogen and comprises a tower body, a gas inlet pipe is mounted at the lower end of one side of the tower body in a penetrating manner, an auxiliary mechanism is mounted at one end, positioned in the tower body, of the gas inlet pipe, and a plurality of adsorption blocks are mounted at the upper end in the tower body. A gas outlet pipe is mounted at the upper end of the tower body in a penetrating manner, and a plurality of waste gas pipes are mounted on one side of the tower body in a penetrating manner. Through the arrangement of the auxiliary mechanism, after methanol gas enters the gas inlet pipe, the methanol gas is accelerated by the trumpet-shaped hole of the compression pipe to push the fan blades to rotate, the fan blades drive the first rotating shaft to rotate, the second rotating shaft rotates through meshing connection of the first bevel gear and the second bevel gear, and the second rotating shaft drives the connecting pipe to rotate at the lower end in the tower body; the temporary storage groove between the connecting disc on the connecting pipe and the extension block can temporarily store gas, and the through holes in the upper end of the temporary storage groove can uniformly disperse the gas to the upper part of the tower body, so that methanol gas is prevented from being accumulated in a local area at the lower end of the tower body.

Description

Technical Field

[0001] This utility model relates to the field of methanol-to-hydrogen technology, and more specifically, to a separation tower for methanol-to-hydrogen production. Background Technology

[0002] In the methanol-to-hydrogen process, the separation tower is a core piece of equipment, and its performance directly affects the production efficiency and quality of hydrogen. However, in existing separation tower structures, methanol gas is usually directly introduced into the tower body through the inlet pipe. Due to the lack of effective gas dispersion measures, methanol gas easily accumulates in local areas at the bottom of the tower. As the key component of the separation tower for separating hydrogen from other impurity gases, the adsorption efficiency depends on sufficient contact with the gas. Therefore, when the gas accumulates, the adsorption block cannot contact the methanol gas evenly. Some areas of the adsorption block are overloaded due to excessively high gas concentration, while other areas cannot fully function due to insufficient gas supply, resulting in a significant reduction in overall adsorption efficiency and consequently affecting the purity and yield of hydrogen. Therefore, we propose a separation tower for methanol-to-hydrogen production to solve the above problems. Utility Model Content

[0003] The main objective of this invention is to provide a separation tower for methanol-to-hydrogen production. This addresses the problem in existing separation tower structures where methanol gas is typically introduced directly into the tower body through an inlet pipe. Due to a lack of effective gas dispersion measures, methanol gas easily accumulates in localized areas at the lower end of the tower. Since the adsorption block is a key component in the separation tower for separating hydrogen from other impurity gases, its adsorption efficiency depends on sufficient contact with the gas. Therefore, when gas accumulates, the adsorption block cannot maintain uniform contact with the methanol gas. Some areas of the adsorption block become overloaded due to excessively high gas concentrations, while others fail to function effectively due to insufficient gas supply. This significantly reduces the overall adsorption efficiency, thereby affecting the purity and yield of the produced hydrogen.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A separation tower for methanol-to-hydrogen production includes a tower body, an inlet pipe installed through the lower end of one side of the tower body, an auxiliary mechanism installed at the end of the inlet pipe inside the tower body, several adsorption blocks installed at the upper end of the interior of the tower body, an outlet pipe installed through the upper end of the tower body, several waste gas pipes installed through one side of the tower body, and a connecting pipe movably installed at the lower end of the interior of the tower body. The connecting pipe is engaged with the upper end of the inlet pipe inside the tower body, a connecting plate is fixedly installed at the upper end of the connecting pipe, several extension blocks are installed on the outer side of the connecting plate, a temporary storage groove is provided between the connecting plate and the extension blocks, the temporary storage groove is connected through the connecting pipe, and several through holes are provided through the upper end of the interior of the temporary storage groove.

[0006] Preferably, valves are installed inside the inlet pipe, exhaust pipe and outlet pipe respectively.

[0007] Preferably, a first support frame is installed at the lower end of the air intake pipe, a first rotating shaft is movably installed inside the first support frame, and a first bearing is installed between the first rotating shaft and the first support frame.

[0008] Preferably, a fan blade is installed at the end of the first rotating shaft near the valve, the fan blade is movably located inside the air intake pipe, and a compression pipe is installed inside the air intake pipe and at the end near the fan blade, the compression pipe having a funnel-shaped hole in the middle.

[0009] Preferably, a second support frame is installed at the upper end of the air intake pipe, a second rotating shaft is movably installed inside the second support frame, a second bearing is installed between the second rotating shaft and the second support frame, a second helical gear is installed at the lower end of the second rotating shaft, a first helical gear is installed at the end of the first rotating shaft near the second rotating shaft, and the first helical gear and the second helical gear are meshed together.

[0010] Preferably, the upper end of the second rotating shaft is located inside the connecting pipe, and several fixing plates are installed between the second rotating shaft and the connecting pipe. The lower surface of the connecting pipe is provided with an annular sliding groove, and the upper surface of the air intake pipe is provided with an annular rotating block. The annular rotating block is engaged and installed inside the annular sliding groove.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] (1) In this utility model, an auxiliary mechanism is set up so that after the methanol gas enters the inlet pipe, it is accelerated through the funnel-shaped hole of the compression pipe, which drives the fan blade to rotate. The fan blade drives the first rotating shaft to rotate. Through the meshing connection of the first helical gear and the second helical gear, the second rotating shaft is rotated. The second rotating shaft drives the connecting pipe to rotate at the lower end of the tower body. The temporary storage groove between the connecting plate and the extension block on the connecting pipe can temporarily store the gas. The through hole at the upper end of the temporary storage groove can evenly disperse the gas to the upper part of the tower body, avoiding the accumulation of methanol gas in a local area at the lower end of the tower body. This allows the adsorption block to contact the methanol gas more evenly, effectively preventing some adsorption blocks from being overloaded due to excessive gas concentration or from not being able to fully play their role due to insufficient gas supply, thereby significantly improving the overall adsorption efficiency. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of a separation tower for methanol-to-hydrogen production according to the present invention.

[0014] Figure 2 This is a front view schematic diagram of a separation tower for methanol-to-hydrogen production according to the present invention.

[0015] Figure 3 This is a side view of the separation tower for methanol-to-hydrogen production according to the present invention.

[0016] Figure 4 This utility model relates to a separation tower for methanol-to-hydrogen production. Figure 2 Schematic diagram of the cross-sectional structure at point AA;

[0017] Figure 5 This utility model relates to a separation tower for methanol-to-hydrogen production. Figure 3 Schematic diagram of the cross-sectional structure at point BB;

[0018] Figure 6 This utility model relates to a separation tower for methanol-to-hydrogen production. Figure 4 Enlarged structural diagram at point C;

[0019] Figure 7 This utility model relates to a separation tower for methanol-to-hydrogen production. Figure 5 Enlarged structural diagram at point D;

[0020] Figure 8 This utility model relates to a separation tower for methanol-to-hydrogen production. Figure 5 Enlarged structural diagram at point E in the middle.

[0021] In the diagram: 1. Tower body; 2. Inlet pipe; 3. Exhaust pipe; 4. Outlet pipe; 5. Auxiliary mechanism; 501. Compression pipe; 502. First support frame; 503. First bearing; 504. First rotating shaft; 505. Fan blade; 506. First helical gear; 507. Second rotating shaft; 508. Second helical gear; 509. Second support frame; 510. Second bearing; 511. Connecting pipe; 512. Annular rotating block; 513. Fixing plate; 514. Annular groove; 515. Connecting plate; 516. Extension block; 517. Temporary storage groove; 518. Through hole; 6. Adsorption block. Detailed Implementation

[0022] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0023] like Figures 1 to 8As shown in the figure, this utility model embodiment proposes a separation tower for methanol-to-hydrogen production, including a tower body 1. An inlet pipe 2 is installed through the lower end of one side of the tower body 1. An auxiliary mechanism 5 is installed at one end of the inlet pipe 2 inside the tower body 1. Several adsorption blocks 6 are installed at the upper end of the interior of the tower body 1. An outlet pipe 4 is installed through the upper end of the tower body 1. Several waste gas pipes 3 are installed through the side of the tower body 1. The auxiliary mechanism 5 includes a connecting pipe 511, which is movably installed at the lower end of the interior of the tower body 1. The connecting pipe 511 is engaged with the upper end of the inlet pipe 2 inside the tower body 1. A connecting plate 515 is fixedly installed at the upper end of the connecting pipe 511. Several extension blocks 516 are installed on the outside of the connecting plate 515. A temporary storage groove 517 is provided between the connecting plate 515 and the extension blocks 516. The temporary storage groove 517 is connected through the connecting pipe 511. Several through holes 518 are provided through the upper end of the interior of the temporary storage groove 517.

[0024] like Figures 4 to 8 As shown, in another embodiment of this utility model, valves are respectively installed inside the bodies of the intake pipe 2, exhaust pipe 3, and outlet pipe 4. A first support frame 502 is installed at the lower end of the intake pipe 2. A first rotating shaft 504 is movably installed inside the first support frame 502. A first bearing 503 is installed between the first rotating shaft 504 and the first support frame 502. A fan blade 505 is installed at the end of the first rotating shaft 504 near the valve. The fan blade 505 is movably located inside the intake pipe 2. A compression pipe 501 is installed inside the intake pipe 2 and at the end near the fan blade 505. A flared hole is provided in the middle of the inside of the compression pipe 501. A second support frame 509 is installed at the upper end of the intake pipe 2. The internal movement is connected by a second rotating shaft 507. A second bearing 510 is installed between the second rotating shaft 507 and the second support frame 509. A second helical gear 508 is installed at the lower end of the second rotating shaft 507. A first helical gear 506 is installed at the end of the first rotating shaft 504 near the second rotating shaft 507. The first helical gear 506 and the second helical gear 508 are meshed together. The upper end of the second rotating shaft 507 is located inside the connecting pipe 511. Several fixing plates 513 are installed between the second rotating shaft 507 and the connecting pipe 511. An annular groove 514 is provided on the lower surface of the connecting pipe 511. An annular rotating block 512 is installed on the upper surface of the air intake pipe 2. The annular rotating block 512 is engaged inside the annular groove 514.

[0025] Methanol gas enters through the inlet pipe 2. When the gas flows through the compression pipe 501 near the fan blade 505 inside the inlet pipe 2, the gas is accelerated at this point because the compression pipe 501 has a funnel-shaped hole in the middle. The accelerated gas has greater kinetic energy, which drives the fan blade 505 to rotate. The special structure of the compression pipe 501 is used to accelerate the gas and provide power for the operation of a series of components. Compared with directly introducing gas, the accelerated gas can drive the fan blade 505 more efficiently, which enhances the automation capability of the device.

[0026] Then, when the fan blade 505 rotates, it drives the first rotating shaft 504 to rotate. A first helical gear 506 is installed at one end of the first rotating shaft 504 near the second rotating shaft 507, and a second helical gear 508 is installed at the lower end of the second rotating shaft 507. The first helical gear 506 and the second helical gear 508 mesh together to make the second rotating shaft 507 rotate. The upper end of the second rotating shaft 507 is located inside the connecting pipe 511, and several fixing plates 513 are installed between the second rotating shaft 507 and the connecting pipe 511. Therefore, the rotation of the second rotating shaft 507 will drive the connecting pipe 511 to rotate at the lower end inside the tower body 1.

[0027] Then, methanol gas enters the temporary storage tank 517 through the connecting pipe 511. As the connecting pipe 511 rotates, the temporary storage tank 517 also rotates. Several through holes 518 are provided through the upper part of the interior of the temporary storage tank 517. During the rotation, the gas in the temporary storage tank 517 is evenly dispersed to the upper part of the tower body 1 through the through holes 518. The temporary storage tank 517 can temporarily store the gas and avoid the gas from rushing into the upper part of the tower body 1 in a large amount, which would cause uneven distribution. The rotation of the connecting pipe 511, together with the through holes 518, can evenly disperse the gas to the upper part of the tower body 1, so that the adsorption block 6 at the upper part of the tower body 1 can contact the methanol gas more evenly. This effectively prevents some adsorption blocks 6 from being overloaded due to excessive gas concentration or from not being able to fully play their role due to insufficient gas supply. It significantly improves the overall adsorption efficiency, thereby improving the purity and yield of hydrogen production.

[0028] The adsorption block 6 at the upper end of the tower body 1 adsorbs and separates the dispersed methanol gas, separating hydrogen from other impurity gases. The separated hydrogen is discharged from the gas outlet pipe 4 installed through the upper end of the tower body 1, while the separated waste gas is discharged from several waste gas pipes 3 installed through the side of the tower body 1. The clear gas emission channel design allows hydrogen and waste gas to be discharged smoothly, ensuring the smooth flow of gas in the separation tower, which is conducive to the continuous separation of methanol to hydrogen and improves production efficiency.

[0029] The working principle of a separation tower for methanol-to-hydrogen production:

[0030] In use, methanol gas first enters through the intake pipe 2. When the gas flows through the compression pipe 501 near the fan blade 505 inside the intake pipe 2, the gas is accelerated at this point because the compression pipe 501 has a funnel-shaped hole in the middle. The accelerated gas has greater kinetic energy, which drives the fan blade 505 to rotate. Then, when the fan blade 505 rotates, it drives the first shaft 504 to rotate. The first shaft 504 is equipped with a first helical gear 506 near the second shaft 507, and the second shaft 507 is equipped with a second helical gear 508 at the lower end. The second shaft 507 rotates through the meshing connection between the first helical gear 506 and the second helical gear 508. The upper end of the second rotating shaft 507 is located inside the connecting pipe 511, and several fixing plates 513 are installed between the second rotating shaft 507 and the connecting pipe 511. Therefore, the rotation of the second rotating shaft 507 will drive the connecting pipe 511 to rotate at the lower end inside the tower body 1. Then, the methanol gas enters the temporary storage tank 517 through the connecting pipe 511. As the connecting pipe 511 rotates, the temporary storage tank 517 also rotates. Several through holes 518 are provided through the upper end of the temporary storage tank 517. During the rotation, the gas in the temporary storage tank 517 is evenly dispersed to the upper part of the tower body 1 through the through holes 518, so that the adsorption block 6 at the upper end of the tower body 1 can contact the methanol gas more evenly. Finally, the adsorption block 6 at the upper end of the tower body 1 adsorbs and separates the dispersed methanol gas, separating the hydrogen gas from other impurity gases. The separated hydrogen gas is discharged from the gas outlet pipe 4 installed through the upper end of the tower body 1, while the separated waste gas is discharged from several waste gas pipes 3 installed through the side of the tower body 1.

[0031] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. For those skilled in the art, other variations or modifications can be made based on the above description. It is impossible to exhaustively list all the implementation methods here. Any obvious variations or modifications derived from the technical solutions of this utility model are still within the protection scope of this utility model.

Claims

1. A separation tower for methanol-to-hydrogen production, comprising a tower body (1), characterized in that: An air inlet pipe (2) is installed through the lower end of one side of the tower body (1). An auxiliary mechanism (5) is installed at one end of the air inlet pipe (2) inside the tower body (1). Several adsorption blocks (6) are installed at the upper end of the interior of the tower body (1). An air outlet pipe (4) is installed through the upper end of the tower body (1). Several waste gas pipes (3) are installed through one side of the tower body (1). The auxiliary mechanism (5) includes a connecting pipe (511). The connecting pipe (511) is movably installed at the lower end of the interior of the tower body (1). The connecting pipe (511) and the air inlet pipe (2) are connected at the upper end inside the tower body (1). A connecting plate (515) is fixedly installed at the upper end of the connecting pipe (511). Several extension blocks (516) are installed on the outside of the connecting plate (515). A temporary storage groove (517) is provided between the connecting plate (515) and the extension blocks (516). The temporary storage groove (517) is connected to the connecting pipe (511). Several through holes (518) are provided through the upper end of the interior of the temporary storage groove (517).

2. The separation tower for methanol-to-hydrogen production according to claim 1, characterized in that: Valves are installed inside the inlet pipe (2), exhaust pipe (3) and outlet pipe (4).

3. A separation tower for methanol-to-hydrogen production according to claim 1, characterized in that: The lower end of the air intake pipe (2) is equipped with a first support frame (502), and a first rotating shaft (504) is movably installed inside the first support frame (502). A first bearing (503) is installed between the first rotating shaft (504) and the first support frame (502).

4. A separation tower for methanol-to-hydrogen production according to claim 3, characterized in that: The first rotating shaft (504) has a fan blade (505) installed at one end near the valve. The fan blade (505) is located inside the air intake pipe (2). A compression pipe (501) is installed inside the air intake pipe (2) at one end near the fan blade (505). The compression pipe (501) has a horn-shaped hole in the middle of its interior.

5. A separation tower for methanol-to-hydrogen production according to claim 4, characterized in that: The upper part of the air intake pipe (2) is equipped with a second support frame (509). A second rotating shaft (507) is movably installed inside the second support frame (509). A second bearing (510) is installed between the second rotating shaft (507) and the second support frame (509). A second helical gear (508) is installed at the lower end of the second rotating shaft (507). A first helical gear (506) is installed at the end of the first rotating shaft (504) near the second rotating shaft (507). The first helical gear (506) and the second helical gear (508) are meshed together.

6. A separation tower for methanol-to-hydrogen production according to claim 5, characterized in that: The upper end of the second rotating shaft (507) is located inside the connecting pipe (511). Several fixing plates (513) are installed between the second rotating shaft (507) and the connecting pipe (511). The lower surface of the connecting pipe (511) is provided with an annular sliding groove (514). The upper surface of the air intake pipe (2) is provided with an annular rotating block (512). The annular rotating block (512) is engaged and installed inside the annular sliding groove (514).

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