Desulfurization tank for hydrogen production

Abstract

The utility model relates to the technical field of hydrogen production equipment, and discloses a desulfurization tank for hydrogen production, which comprises a desulfurization cylinder, a material changing component for replacing a desulfurizing agent is arranged in an inner cavity of the desulfurization cylinder, and a connecting cover is arranged at the lower end of the outer side of the desulfurization cylinder. A desulfurization cavity and a sulfur storage cavity are formed in an inner cavity of the desulfurization cylinder through a material changing assembly, a semicircular hole and a storage hole are formed in the lower surface of the desulfurization cylinder, and an opening and closing assembly is arranged in the semicircular hole; through cooperation of the desulfurization cylinder and the material changing assembly, a first motor drives a first rotating shaft to drive a material separating turning plate to transfer a desulfurization agent stored in a sulfur storage cavity to a desulfurization cavity, so that the desulfurization agent after sulfur absorption is transferred to the sulfur storage cavity, the replacement efficiency of the desulfurization agent is improved, and desulfurization treatment can be carried out on hydrogen without interruption; the method for replacing the desulfurizing agent is simple and efficient, and the hydrogen desulfurization efficiency is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of hydrogen production equipment, in particular to a desulfurization tank used for hydrogen production. Background Art

[0002] Hydrogen is a highly flammable, colorless, transparent, odorless and tasteless gas. Hydrogen is the smallest known gas in the world. Its density is only 1 / 14 of that of air, that is, at 0°C and a standard atmospheric pressure, its density is 0.0899 g / L. Therefore, hydrogen can be used as a filling gas for airships and hydrogen balloons (due to its flammability and low safety, airships are now mostly filled with helium). Hydrogen is the substance with the smallest relative molecular mass and is mainly used as a reducing agent.

[0003] When hydrogen is produced, it needs to be desulfurized in a desulfurization tank. The desulfurization efficiency of traditional desulfurization tanks is relatively low, and it is easy to have problems with impure desulfurization.

[0004] In the prior art, the Chinese utility model with publication number: CN209442637U discloses a desulfurization tank for hydrogen production, including a desulfurization tank body, an air inlet pipe inserted in the desulfurization tank body, and a desulfurization cavity in the desulfurization tank body, an air inlet cavity in the desulfurization cavity, and an air inlet hole in communication with the desulfurization cavity in the air inlet cavity, the end of the air inlet pipe is in communication with the air inlet cavity, the second air outlet pipe is provided with an air hole, and a supporting partition is provided on the lower side of the second air outlet pipe, and a sewage pipe is provided at the bottom of the desulfurization tank body. The desulfurization tank for hydrogen production is provided with an independent desulfurization cavity in the desulfurization tank, and the air inlet pipe injects the hydrogen to be desulfurized into the air inlet cavity respectively, the induced draft fan accelerates the air intake efficiency, the through hole in the air inlet cavity allows the hydrogen to enter the desulfurization cavity evenly, and the second air outlet pipe can input the desulfurized hydrogen into the desulfurization cavity again for impact stirring to improve the hydrogen desulfurization efficiency;

[0005] Although the above technical solution improves the desulfurization effect of hydrogen, after a period of desulfurization, the desulfurization effect of the desulfurizer will gradually decrease due to the gradual increase of sulfur adsorbed on the desulfurizer. The replacement of the desulfurizer is relatively complicated. When replacing the desulfurizer, the hydrogen supply needs to be stopped, and the desulfurization effect of hydrogen needs to be further improved. Therefore, we need to propose a desulfurization tank for hydrogen production. Utility Model Content

[0006] The purpose of the utility model is to provide a desulfurization tank for hydrogen production, which is convenient and fast to replace the desulfurizer, improve the efficiency of replacing the desulfurizer, avoid the desulfurizer adsorbing too much sulfur in the hydrogen and reducing the desulfurization effect, and then improve the desulfurization efficiency of hydrogen, so as to solve the problems raised in the above background technology.

[0007] To achieve the above purpose, the utility model provides the following technical solution: a desulfurization tank for hydrogen production, comprising:

[0008] A desulfurization cylinder, wherein the inner cavity of the desulfurization cylinder is provided with a material changing assembly for replacing the desulfurizer, a connection cover is provided at the lower end of the outer side of the desulfurization cylinder, a desulfurization cavity and a sulfur storage cavity are formed in the inner cavity of the desulfurization cylinder through the material changing assembly, a semicircular hole and a receiving hole are provided on the lower surface of the desulfurization cylinder, an opening and closing assembly is provided in the semicircular hole, and a stirring assembly is provided inside the receiving hole;

[0009] The material changing assembly includes a first motor and a material partition flap. The first motor is installed in the middle of the upper surface of the desulfurization cylinder. The output shaft of the first motor is transmission-connected with a first rotating shaft. The lower end of the first rotating shaft passes through the desulfurization cylinder and is fixedly connected to the middle of the upper surface of the material partition flap.

[0010] Preferably, an air outlet pipe communicating with the desulfurization cavity is provided on the upper surface of the desulfurization cylinder, and a plurality of air inlet holes communicating with the connection cover and the desulfurization cavity are provided on the lower outer end of the desulfurization cylinder.

[0011] Preferably, one side of the connecting cover is connected to an air inlet pipe, and an induced draft fan is provided at one end of the inner cavity of the air inlet pipe close to the connecting cover.

[0012] Preferably, the opening and closing assembly includes a second electric push rod and an opening and closing plate, the opening and closing plate is rotatably connected to one end of the inner cavity of the semicircular hole, and the telescopic end of the second electric push rod is rotatably connected to a hinge seat fixedly connected to the lower surface of the opening and closing plate.

[0013] Preferably, a support plate is fixedly connected to the lower surface of the desulfurization cylinder, a base is fixedly connected to the lower surface of the support plate, and a mounting groove for rotatably connecting the second electric push rod is opened on one side of the support plate.

[0014] Preferably, the stirring assembly includes a protective cover and a second motor, the second motor is mounted on the lower surface of the protective cover, the output shaft of the second motor is transmission-connected to a second rotating shaft, and the upper end of the second rotating shaft is fixedly connected to a stirring blade.

[0015] Preferably, the stirring assembly also includes a first electric push rod arranged on the upper surface of the base, the telescopic end of the first electric push rod is arranged at one end of the lower surface of the protective cover, a bellows is arranged along the edge of the upper surface of the protective cover, the upper end of the bellows is connected to the storage hole, and the stirring fan blades are arranged in the inner cavity of the bellows.

[0016] Preferably, a feeding pipe connected to the sulfur storage cavity is provided on the upper surface of the desulfurization cylinder, and the feeding pipe is arranged directly above the semicircular hole.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] 1. The utility model mainly realizes the cooperation between the desulfurization cylinder and the material replacement component. The first motor drives the first rotating shaft to drive the material partition flap to transfer the desulfurizer stored in the sulfur storage cavity to the desulfurization cavity, and then the desulfurizer after absorbing sulfur is transferred to the sulfur storage cavity, thereby improving the replacement efficiency of the desulfurizer, being able to desulfurize hydrogen without interruption, and the method of replacing the desulfurizer is simple and efficient, further improving the desulfurization efficiency of hydrogen.

[0019] 2. The utility model cooperates between the opening and closing component and the stirring component, and facilitates lifting the protective cover to the storage groove through the first electric push rod, thereby compressing the bellows and making the stirring blades located at the bottom of the desulfurization cavity. The second motor drives the second rotating shaft to drive the stirring blades to stir the desulfurizer at the bottom, thereby improving the desulfurization effect of the desulfurizer on hydrogen. At the same time, the second electric push rod drives the opening and closing plate to flip, thereby facilitating the discharge of the replaced desulfurizer, so as to facilitate the storage of the desulfurizer for the next replacement, thereby improving practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;

[0022] Figure 3 This is a schematic diagram of the air intake pipe structure of the utility model;

[0023] Figure 4 This is a schematic diagram of the structure of the stirring component of the utility model.

[0024] In the figure: 1. desulfurization cylinder; 2. connecting cover; 3. air inlet pipe; 4. induced draft fan; 5. air inlet hole; 6. air outlet pipe; 7. feeding pipe; 8. material changing assembly; 81. first motor; 82. first rotating shaft; 83. material partition flap; 9. support plate; 10. base; 11. stirring assembly; 111. first electric push rod; 112. protective cover; 113. second motor; 114. second rotating shaft; 115. stirring blade; 116. bellows; 12. mounting groove; 13. opening and closing assembly; 131. second electric push rod; 132. hinge seat; 133. opening and closing plate; 14. semicircular hole; 15. desulfurization cavity; 16. storage hole; 17. sulfur storage cavity. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-4 The utility model provides a technical solution: a desulfurization tank for hydrogen production, comprising:

[0027] A desulfurization cylinder 1, wherein the inner cavity of the desulfurization cylinder 1 is provided with a material changing assembly 8 for replacing the desulfurizer, a connection cover 2 is provided at the lower end of the outer side of the desulfurization cylinder 1, a desulfurization cavity 15 and a sulfur storage cavity 17 are formed in the inner cavity of the desulfurization cylinder 1 through the material changing assembly 8, a semicircular hole 14 and a receiving hole 16 are provided on the lower surface of the desulfurization cylinder 1, an opening and closing assembly 13 is provided in the semicircular hole 14, and a stirring assembly 11 is provided inside the receiving hole 16;

[0028] The material changing assembly 8 includes a first motor 81 and a material separating flap 83. The first motor 81 is installed in the middle of the upper surface of the desulfurization cylinder 1. The output shaft of the first motor 81 is transmission-connected to a first rotating shaft 82. The lower end of the first rotating shaft 82 passes through the desulfurization cylinder 1 and is fixedly connected to the middle of the upper surface of the material separating flap 83.

[0029] The upper surface of the desulfurization cylinder 1 is provided with an outlet pipe 6 connected to the desulfurization cavity 15, and the lower end of the outer side of the desulfurization cylinder 1 is provided with multiple groups of air inlet holes 5 connecting the connecting cover 2 and the desulfurization cavity 15. The multiple groups of air inlet holes 5 expand the contact range between hydrogen and the desulfurizer, thereby improving the separation effect of hydrogen.

[0030] One side of the connecting cover 2 is connected with an air inlet pipe 3, and an induced draft fan 4 is provided at one end of the inner cavity of the air inlet pipe 3 close to the connecting cover 2, so that hydrogen can be easily introduced through the air inlet pipe 3, and then the hydrogen is filled into the connecting cover 2 through the induced draft fan 4, so that the hydrogen is concentrated and then enters and leaves the cavity through the air inlet hole 5.

[0031] The opening and closing assembly 13 includes a second electric push rod 131 and an opening and closing plate 133. The opening and closing plate 133 is rotatably connected to one end of the inner cavity of the semicircular hole 14. The telescopic end of the second electric push rod 131 is rotatably connected to a hinge seat 132 fixedly connected to the lower surface of the opening and closing plate 133. The opening and closing plate 133 is driven by the second electric push rod 131 to open and close, thereby facilitating the discharge of the replaced desulfurizer in the sulfur storage cavity 17 and facilitating the storage of unreacted desulfurization, so as to facilitate continuous desulfurization treatment of hydrogen.

[0032] A support plate 9 is fixedly connected to the lower surface of the desulfurization cylinder 1, and a base 10 is fixedly connected to the lower surface of the support plate 9. A mounting groove 12 for rotatably connecting the second electric push rod 131 is provided on one side of the support plate 9. The stability of the desulfurization cylinder 1 is improved by the base 10.

[0033] The stirring assembly 11 includes a protective cover 112 and a second motor 113, the second motor 113 is installed on the lower surface of the protective cover 112, the output shaft of the second motor 113 is drivingly connected to the second rotating shaft 114, the upper end of the second rotating shaft 114 is fixedly connected to a stirring blade 115, the second motor 113 drives the second rotating shaft 114 to drive the stirring blade 115 to stir the desulfurizer at the bottom, thereby improving the desulfurization effect of the desulfurizer on hydrogen.

[0034] The stirring assembly 11 also includes a first electric push rod 111 arranged on the upper surface of the base 10, the telescopic end of the first electric push rod 111 is arranged at one end of the lower surface of the protective cover 112, a bellows 116 is arranged along the edge of the upper surface of the protective cover 112, the upper end of the bellows 116 is connected to the storage hole 16, and the stirring blades 115 are arranged in the inner cavity of the bellows 116. The first electric push rod 111 drives the protective cover 112 to descend, so that the bellows 116 is unfolded, which is convenient for storing the stirring blades 115, and then it is convenient for the material replacement assembly 8 to replace the desulfurizer.

[0035] The upper surface of the desulfurization cylinder 1 is provided with a feeding pipe 7 connected to the sulfur storage cavity 17. The feeding pipe 7 is arranged directly above the semicircular hole 14. The feeding pipe 7 is used to conveniently feed new desulfurizer into the sulfur storage cavity 17 from which the used desulfurizer is discharged.

[0036] When in use, hydrogen enters the air inlet pipe 3, and under the action of the induced draft fan 4, enters the desulfurization cavity 15 containing the desulfurizer through the air inlet hole 5, and then the second motor 113 drives the second rotating shaft 114 to drive the stirring blades 115 to stir the desulfurizer at the bottom, thereby improving the desulfurization efficiency of the hydrogen. After a period of desulfurization, the first electric push rod 111 contracts and drives the protective cover 112 to descend, thereby causing the stirring blades to be stored in the bellows 116 below the storage hole 16, and the first motor 81 drives the first rotating shaft 82 to drive the partition flap 83 to transfer the new desulfurizer in the sulfur storage cavity 17 to the desulfurizer. The desulfurizer is transferred to the desulfurization cavity 15, and the used desulfurizer in the original desulfurization cavity 15 is transferred to the sulfur storage cavity 17. The first electric push rod 111 drives the protective cover 112 to be embedded in the storage hole 16, so that the stirring blades stir the new desulfurizer to continuously desulfurize the hydrogen. The telescopic end of the second electric push rod 131 contracts, thereby causing the opening and closing plate 133 to flip over to discharge the used desulfurizer in the sulfur storage cavity 17, and then new desulfurizer is added into the storage cavity through the feeding pipe 7, waiting for the next replacement, thereby improving the replacement efficiency of the desulfurizer and thereby improving the separation efficiency of the hydrogen.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A desulfurization tank for hydrogen production, characterized in that: include: A desulfurization cylinder (1), wherein the inner cavity of the desulfurization cylinder (1) is provided with a material replacement component (8) for replacing a desulfurizing agent, a connection cover (2) is provided at the lower end of the outer side of the desulfurization cylinder (1), the inner cavity of the desulfurization cylinder (1) is formed with a desulfurization cavity (15) and a sulfur storage cavity (17) through the material replacement component (8), a semicircular hole (14) and a receiving hole (16) are provided on the lower surface of the desulfurization cylinder (1), an opening and closing component (13) is provided in the semicircular hole (14), and a stirring component (11) is provided inside the receiving hole (16); The material changing assembly (8) comprises a first motor (81) and a material separating flap (83), wherein the first motor (81) is mounted in the middle of the upper surface of the desulfurization cylinder (1), and the output shaft of the first motor (81) is transmission-connected to a first rotating shaft (82), wherein the lower end of the first rotating shaft (82) passes through the desulfurization cylinder (1) and is fixedly connected to the middle of the upper surface of the material separating flap (83).

2. A desulfurization tank for hydrogen production according to claim 1, characterized in that: The upper surface of the desulfurization cylinder (1) is provided with an air outlet pipe (6) connected to the desulfurization cavity (15), and the lower end of the outer side of the desulfurization cylinder (1) is provided with a plurality of groups of air inlet holes (5) connected to the connection cover (2) and the desulfurization cavity (15).

3. A desulfurization tank for hydrogen production according to claim 2, characterized in that: One side of the connection cover (2) is connected to an air intake pipe (3), and an induced draft fan (4) is provided at one end of the inner cavity of the air intake pipe (3) close to the connection cover (2).

4. A desulfurization tank for hydrogen production according to claim 3, characterized in that: The opening and closing assembly (13) comprises a second electric push rod (131) and an opening and closing plate (133); the opening and closing plate (133) is rotatably connected to one end of the inner cavity of the semicircular hole (14); the telescopic end of the second electric push rod (131) is rotatably connected to a hinge seat (132) fixedly connected to the lower surface of the opening and closing plate (133).

5. A desulfurization tank for hydrogen production according to claim 4, characterized in that: A support plate (9) is fixedly connected to the lower surface of the desulfurization cylinder (1), a base (10) is fixedly connected to the lower surface of the support plate (9), and a mounting groove (12) for rotationally connecting a second electric push rod (131) is provided on one side of the support plate (9).

6. A desulfurization tank for hydrogen production according to claim 5, characterized in that: The stirring assembly (11) comprises a protective cover (112) and a second motor (113), wherein the second motor (113) is mounted on the lower surface of the protective cover (112), an output shaft of the second motor (113) is transmission-connected to a second rotating shaft (114), and an upper end of the second rotating shaft (114) is fixedly connected to a stirring blade (115).

7. A desulfurization tank for hydrogen production according to claim 6, characterized in that: The stirring assembly (11) further comprises a first electric push rod (111) arranged on the upper surface of the base (10); the telescopic end of the first electric push rod (111) is arranged at one end of the lower surface of the protective cover (112); a bellows (116) is arranged along the edge of the upper surface of the protective cover (112); the upper end of the bellows (116) is connected to the storage hole (16); and the stirring blade (115) is arranged in the inner cavity of the bellows (116).

8. A desulfurization tank for hydrogen production according to claim 7, characterized in that: The upper surface of the desulfurization cylinder (1) is provided with a feeding pipe (7) which is connected to the sulfur storage cavity (17); the feeding pipe (7) is arranged directly above the semicircular hole (14).

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