Hydrogen recovery device for indigo blue production

Abstract

The utility model discloses a hydrogen recovery device for indigo production, which relates to the technical field of indigo production and comprises a base and a separation barrel positioned on the upper side of the base, a first barrel cover is arranged on the upper side of the separation barrel, a first air pump is arranged in the middle of the upper side of the first barrel cover, and an air inlet of the first air pump is connected with a first air suction pipe. An air outlet of the first air pump is connected with a first exhaust pipe, the outer side of the first exhaust pipe is sleeved with a plurality of first separation ring discs, an inner ring plate is arranged at the inner bottom of the separation barrel, the inner side wall of the inner ring plate is in threaded connection with a plurality of second separation ring discs, a booster pump is arranged on the upper side of the first barrel cover, and a water inlet of the booster pump is connected with a water pumping pipe. The device has the advantages that mixed gas produced by indigo blue production can be efficiently separated, the recovery purity of separated hydrogen is ensured, and the function of step-by-step splitting of internal parts of the separation barrel is realized, so that subsequent barrier-free cleaning and maintenance are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of indigo production, in particular to a hydrogen recovery device for indigo production. Background Art

[0002] A hydrogen recovery unit for indigo production is used to recover excess hydrogen generated during the indigo reduction reaction. In industrial production, indigo is typically converted via a reduction reaction, using hydrogen as a reducing agent to convert indigo to indigo white. However, due to the complexity of the chemical reaction and the instability of hydrogen supply, the indigo reduction reaction often produces excess hydrogen. If this excess hydrogen is discharged untreated, it not only wastes energy but also poses potential safety risks. Therefore, the role of a hydrogen recovery unit is crucial.

[0003] Patent publication number CN213679817U discloses a hydrogen recovery system for indigo production. This system recovers the hydrogen produced by the sodium ammonia reactor and unreacted ammonia, and uses the recovered hydrogen to provide the energy required to heat the dehydration reactor. This reduces the energy required for indigo production and improves resource utilization during the production process. However, during use, the hydrogen recovery device for indigo production has a relatively short ammonia treatment time, resulting in a small amount of ammonia remaining in the separated hydrogen, resulting in a low purity of the recovered hydrogen. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a hydrogen recovery device for indigo production. When the existing hydrogen recovery device for indigo production is used, its ammonia processing time is relatively short, resulting in a small amount of ammonia still remaining in the separated hydrogen, and the recovered hydrogen purity is relatively low.

[0005] In order to solve the above technical problems, the technical solution of the present utility model is as follows: a hydrogen recovery device for indigo production, comprising a base, and a separation barrel located on the upper side of the base, a first barrel cover is provided on the upper side of the separation barrel, a first air pump is provided in the middle position of the upper side of the first barrel cover, an air inlet of the first air pump is connected to a first air extraction pipe, and an air outlet of the first air pump is connected to a first exhaust pipe;

[0006] The outer side of the first exhaust pipe is sleeved with a plurality of first separation ring discs, the inner bottom of the separation barrel is provided with an inner ring plate, and the inner side wall of the inner ring plate is threadedly connected with a plurality of second separation ring discs;

[0007] A booster pump is provided on the upper side of the first barrel cover, a water inlet of the booster pump is connected to a water pumping pipe, and a water outlet of the booster pump is connected to a drain pipe.

[0008] As a further solution of the present invention: the first exhaust pipe passes through the first barrel cover and is connected to the first vacuum pump, and the lower end of the first exhaust pipe is located at the inner bottom of the separation barrel, and the first vacuum pipe is designed as a hose.

[0009] As a further solution of the present invention: a plurality of groups of the first separation ring discs are distributed on the first exhaust pipe at equal intervals, and a plurality of groups of the second separation ring discs are distributed on the inner ring plate at equal intervals.

[0010] As a further solution of the present invention: several groups of the first separating ring discs and several groups of the second separating ring discs are arranged alternately, and the lower surfaces of the several groups of the first separating ring discs and the several groups of the second separating ring discs are arranged in an inclined manner.

[0011] As a further solution of the present invention: the water suction pipe passes through the first barrel cover and is clamped with the booster pump, and the drainage pipe passes through the bottom and base of the separation barrel and is clamped with the booster pump.

[0012] As a further solution of the present invention: a collecting bucket is provided on the upper side of the base, a second bucket cover is clamped on the lower side of the collecting bucket, a second air pump is installed on the upper side of the first bucket cover, the air inlet of the second air pump is clamped connected to the second air pump pipe passing through the first bucket cover, the air outlet of the second air pump is clamped connected to the second exhaust pipe passing through the top of the collecting bucket, and the second exhaust pipe is designed as a hose.

[0013] As a further solution of the present invention: the lower ends of several groups of the first separation ring disks are fixedly connected with internal thread rings, and the edge position of the lower surface of the first barrel cover is fixedly connected with an external thread ring plate.

[0014] As a further solution of the present invention: several groups of the internal threaded rings are all threadedly connected to the first exhaust pipe, and the external threaded ring plate is threadedly connected to the top of the separation barrel.

[0015] Compared with the prior art, the beneficial effects of the present invention include: by starting the first air pump on the upper side of the first barrel cover, hydrogen and ammonia are pumped into the water in the separation barrel through the first air suction pipe and the first exhaust pipe, and then the mixed gas is brought into contact with the water for a long time through the cooperation of several groups of first separation ring disks and several groups of second separation ring disks. At the same time, the booster pump on the upper surface of the first barrel cover is started to circulate the water in the separation barrel through the water suction pipe and the drain pipe, so that the ammonia in the mixed gas reacts fully with the water, and the mixed gas produced by indigo can be efficiently separated, thereby ensuring the recovery purity of the separated hydrogen.

[0016] Compared with the prior art, the beneficial effects of the present invention include: the first barrel cover is separated from the separation barrel through the threaded connection between the external threaded ring plate and the separation barrel, and then the drain pipe is moved out from the inside of the separation barrel. At this time, the inner ring plate can be brought out at the same time, and then several groups of first separation ring plates are separated from the drain pipe through the threaded connection between the internal threaded ring and the drain pipe, and then several groups of second separation ring plates are spirally removed from the inside of the inner ring plate, realizing the step-by-step disassembly function of the internal components of the separation barrel for subsequent barrier-free cleaning and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of a hydrogen recovery device for indigo production in an embodiment of the present utility model;

[0018] Figure 2 This is a schematic diagram of the connection structure of the first bucket cover in an embodiment of the present utility model;

[0019] Figure 3 This is a partial cross-sectional structural diagram of a hydrogen recovery device for indigo production in an embodiment of the present utility model;

[0020] Figure 4 This is a front view of a hydrogen recovery device for indigo production in an embodiment of the present utility model.

[0021] In the figure: 1. Base; 2. Separation barrel; 3. First barrel cover; 4. First vacuum pump; 5. First vacuum pipe; 6. First exhaust pipe; 7. First separation ring plate; 8. Inner ring plate; 9. Second separation ring plate; 10. Booster pump; 11. Suction pipe; 12. Drain pipe; 13. Second vacuum pump; 14. Second vacuum pipe; 15. Second exhaust pipe; 16. Collection barrel; 17. Second barrel cover; 18. Internally threaded ring; 19. Externally threaded ring plate. DETAILED DESCRIPTION

[0022] The following further describes specific embodiments of the present invention in conjunction with the accompanying drawings. It should be noted that the descriptions of these embodiments are intended to aid understanding of the present invention and do not constitute limitations on the present invention. Furthermore, the technical features involved in the various embodiments of the present invention described below may be combined with one another as long as they do not conflict with one another.

[0023] Example 1, please refer to Figures 1-4A hydrogen recovery device for indigo production includes a base 1 and a separation barrel 2 located on the upper side of the base 1, a first barrel cover 3 is provided on the upper side of the separation barrel 2, a first air pump 4 is provided in the middle position of the upper side of the first barrel cover 3, the air inlet of the first air pump 4 is connected to the first air pump 5, the air outlet of the first air pump 4 is connected to the first exhaust pipe 6, the outer side of the first exhaust pipe 6 is sleeved with several groups of first separating ring disks 7, the inner bottom of the separation barrel 2 is provided with an inner ring plate 8, the inner side wall of the inner ring plate 8 is threadedly connected with several groups of second separating ring disks 9, a booster pump 10 is provided on the upper side of the first barrel cover 3, the water inlet of the booster pump 10 is connected to the water pumping pipe 11, and the water outlet of the booster pump 10 is connected to the drain pipe 12.

[0024] The first exhaust pipe 6 passes through the first barrel cover 3 and is connected to the first air pump 4, and the lower end of the first exhaust pipe 6 is located at the inner bottom of the separation barrel 2. The first air extraction pipe 5 is designed as a hose.

[0025] In this embodiment, the first exhaust pipe 5 and the first exhaust pipe 6 cooperate to pump hydrogen produced by indigo and excess ammonia into the separation barrel 2 .

[0026] Several groups of the first separating ring disks 7 are distributed at equal intervals on the first exhaust pipe 6, several groups of the second separating ring disks 9 are distributed at equal intervals on the inner ring plate 8, several groups of the first separating ring disks 7 and several groups of the second separating ring disks 9 are staggered, and the lower surfaces of several groups of the first separating ring disks 7 and several groups of the second separating ring disks 9 are all inclined.

[0027] In this embodiment, the mixed gas is in contact with the water for a long time by cooperating with a plurality of groups of first separating ring disks 7 and a plurality of groups of second separating ring disks 9 .

[0028] The water pumping pipe 11 passes through the first barrel cover 3 and is clamped with the booster pump 10 , and the drainage pipe 12 passes through the bottom of the separation barrel 2 and the base 1 and is clamped with the booster pump 10 .

[0029] In this embodiment, the water in the separation barrel 2 is circulated by the cooperation of the water pumping pipe 11 and the drainage pipe 12 .

[0030] A collecting barrel 16 is provided on the upper side of the base 1, and a second barrel cover 17 is clamped on the lower side of the collecting barrel 16. A second air pump 13 is installed on the upper side of the first barrel cover 3. The air inlet of the second air pump 13 is clamped and connected to a second air extraction pipe 14 that passes through the first barrel cover 3, and the air outlet of the second air pump 13 is clamped and connected to a second exhaust pipe 15 that passes through the top of the collecting barrel 16, and the second exhaust pipe 15 is designed as a hose.

[0031] In this embodiment, the second air extraction pipe 14 and the second exhaust pipe 15 cooperate to transport hydrogen.

[0032] Specifically, by starting the first vacuum pump 4 on the upper side of the first barrel cover 3, hydrogen and ammonia are pumped into the water in the separation barrel 2 through the first vacuum pipe 5 and the first exhaust pipe 6, and then the mixed gas is brought into contact with the water for a long time through the cooperation of several groups of first separation ring disks 7 and several groups of second separation ring disks 9. At the same time, the booster pump 10 on the upper surface of the first barrel cover 3 is started, and the water in the separation barrel 2 is circulated through the water suction pipe 11 and the drain pipe 12, so that the ammonia in the mixed gas reacts fully with the water, and the mixed gas produced by indigo production can be efficiently separated, thereby ensuring the recovery purity of the separated hydrogen.

[0033] Example 2, please refer to Figures 1-4 A hydrogen recovery device for indigo production includes a base 1 and a separation barrel 2 located on the upper side of the base 1, a first barrel cover 3 is provided on the upper side of the separation barrel 2, a first air pump 4 is provided in the middle position of the upper side of the first barrel cover 3, the air inlet of the first air pump 4 is connected to the first air pump 5, the air outlet of the first air pump 4 is connected to the first exhaust pipe 6, the outer side of the first exhaust pipe 6 is sleeved with several groups of first separating ring disks 7, the inner bottom of the separation barrel 2 is provided with an inner ring plate 8, the inner side wall of the inner ring plate 8 is threadedly connected with several groups of second separating ring disks 9, a booster pump 10 is provided on the upper side of the first barrel cover 3, the water inlet of the booster pump 10 is connected to the water pumping pipe 11, and the water outlet of the booster pump 10 is connected to the drain pipe 12.

[0034] The lower ends of several groups of the first separating ring plates 7 are fixedly connected with internal threaded rings 18, and the edge of the lower surface of the first barrel cover 3 is fixedly connected with external threaded ring plates 19. Several groups of the internal threaded rings 18 are threadedly connected to the first exhaust pipe 6, and the external threaded ring plates 19 are threadedly connected to the top of the separation barrel 2.

[0035] In this embodiment, the internal threaded ring 18 is threadedly connected to the first exhaust pipe 6 so as to install several groups of first separation ring plates 7 .

[0036] Specifically, the first barrel cover 3 is separated from the separation barrel 2 through the threaded connection between the external threaded ring plate 19 and the separation barrel 2, and then the first exhaust pipe 6 is moved out from the interior of the separation barrel 2. At this time, the inner ring plate 8 is brought out at the same time, and then the internal threaded ring 18 is threadedly connected to the first exhaust pipe 6 so that several groups of first separation ring plates 7 are separated from the first exhaust pipe 6, and then several groups of second separation ring plates 9 are spirally removed from the interior of the inner ring plate 8, thereby realizing the step-by-step disassembly function of the internal components of the separation barrel 2 for subsequent barrier-free cleaning and maintenance.

[0037] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It is apparent to those skilled in the art that various changes, modifications, substitutions, and variations to these embodiments may be made without departing from the principles and spirit of the present invention, and these changes and modifications still fall within the scope of protection of the present invention.

Claims

1. A hydrogen recovery device for indigo production, comprising a base (1), characterized in that: It also includes a separation barrel (2) located on the upper side of the base (1), a first barrel cover (3) is provided on the upper side of the separation barrel (2), a first air pump (4) is provided at the middle position of the upper side of the first barrel cover (3), an air inlet of the first air pump (4) is connected to a first air pumping pipe (5), and an air outlet of the first air pump (4) is connected to a first exhaust pipe (6); The outer side of the first exhaust pipe (6) is sleeved with a plurality of first separation ring discs (7), the inner bottom of the separation barrel (2) is provided with an inner ring plate (8), and the inner side wall of the inner ring plate (8) is threadedly connected with a plurality of second separation ring discs (9); A booster pump (10) is provided on the upper side of the first barrel cover (3), a water inlet of the booster pump (10) is connected to a water pumping pipe (11), and a water outlet of the booster pump (10) is connected to a drain pipe (12).

2. The hydrogen recovery device for indigo production according to claim 1, characterized in that: The first exhaust pipe (6) passes through the first barrel cover (3) and is connected to the first air pump (4), and the lower end of the first exhaust pipe (6) is located at the inner bottom of the separation barrel (2). The first air extraction pipe (5) is designed as a hose.

3. The hydrogen recovery device for indigo production according to claim 2, characterized in that: Several groups of the first separation ring discs (7) are distributed at equal intervals on the first exhaust pipe (6), and several groups of the second separation ring discs (9) are distributed at equal intervals on the inner ring plate (8).

4. The hydrogen recovery device for indigo production according to claim 3, characterized in that: Several groups of the first separation ring discs (7) and several groups of the second separation ring discs (9) are arranged alternately, and the lower surfaces of the several groups of the first separation ring discs (7) and the several groups of the second separation ring discs (9) are all arranged in an inclined surface.

5. The hydrogen recovery device for indigo production according to claim 1, characterized in that: The water pumping pipe (11) passes through the first barrel cover (3) and is clamped to the booster pump (10), and the drainage pipe (12) passes through the bottom of the separation barrel (2) and the base (1) and is clamped to the booster pump (10).

6. The hydrogen recovery device for indigo production according to claim 1, characterized in that: A collecting barrel (16) is provided on the upper side of the base (1), a second barrel cover (17) is clamped on the lower side of the collecting barrel (16), a second air pump (13) is installed on the upper side of the first barrel cover (3), an air inlet of the second air pump (13) is clamped and connected to a second air extraction pipe (14) passing through the first barrel cover (3), an air outlet of the second air pump (13) is clamped and connected to a second exhaust pipe (15) passing through the top of the collecting barrel (16), and the second exhaust pipe (15) is designed as a hose.

7. The hydrogen recovery device for indigo production according to claim 1, characterized in that: The lower ends of the plurality of groups of the first separation ring disks (7) are all fixedly connected with an internal threaded ring (18), and the edge of the lower surface of the first barrel cover (3) is fixedly connected with an external threaded ring plate (19).

8. The hydrogen recovery device for indigo production according to claim 7, characterized in that: Several groups of the internal threaded rings (18) are all threadedly connected to the first exhaust pipe (6), and the external threaded ring plate (19) is threadedly connected to the top of the separation barrel (2).

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