Large-scale hydrogen purification production device with built-in heater

Abstract

The utility model relates to the technical field of hydrogen purification production, in particular to a large-scale hydrogen purification production device with a built-in heater. Comprising a first treatment structure, a second treatment structure and a third treatment structure, the first treatment structure comprises a gas-water separator A, a deoxidation tower, a drying tower A, a drying tower B, a drying tower C, a hydrogen filter A and a hydrogen filter B, and the second treatment structure comprises a cooler A, a cooler B and a cooler C. The molecular sieve regeneration device has the beneficial effects that 1, the molecular sieve in the drying tower is regenerated by a method of arranging the heater in the drying tower, an additional heat exchanger is not added, and the whole equipment investment of the process is small; meanwhile, the heater is arranged in the drying tower, so that the heating efficiency is improved; and 2, a method for heating, regenerating and drying the molecular sieve is built in the device, so that the device is easy to implement and industrialize on a large scale, and a feasible purification process is provided for a hydrogen purification system of a large-scale thousand-square four-in-one device.

Description

Technical Field

[0001] The utility model relates to the technical field of hydrogen purification production, in particular to a large-scale hydrogen purification production device with a built-in heater. Background Art

[0002] The use of hydrogen energy is seen as a sustainable energy utilization method that is parallel to the clean and low-carbon utilization of traditional petrochemical fuels and the large-scale utilization of renewable energy. In order to improve the downstream application channels of hydrogen, the purity of hydrogen is crucial. At present, the large-scale purification process of hydrogen production by electrolysis of water mostly adopts catalytic deoxygenation, cooling separation and drying adsorption processes. Depending on the number of drying towers, it can be divided into a two-tower process and a three-tower process. At the same time, the energy consumption, safety and stability of the hydrogen production purification process by electrolysis of water determine whether hydrogen energy can be used on a large scale. A large-scale, low-energy consumption and highly stable hydrogen purification system is the cornerstone of the high-quality development of hydrogen energy in China.

[0003] At present, the stability of hydrogen-enhanced regeneration and the energy utilization rate of regeneration need to be further improved. Utility Model Content

[0004] The purpose of this utility model is to solve the shortcomings of the existing technology and propose a large-scale hydrogen purification production device with a built-in heater. The technical solution adopted by this utility model is:

[0005] A large-scale hydrogen purification production device with a built-in heater includes a processing structure 1, a processing structure 2, and a processing structure 3. The processing structure 1 includes a gas-water separator A, a deoxygenation tower, a drying tower A, a drying tower B, a drying tower C, a hydrogen filter A, and a hydrogen filter B. The processing structure 2 includes a cooler A, a cooler B, a cooler C, and a cooler D. The processing structure 3 includes a gas-water separator B, a gas-water separator C, a gas-water separator D, a gas-water separator E, a water collector, and a water seal tank. The processing structure 1 is arranged on the top of the processing structure 2, and the processing structure 2 is arranged on the top of the processing structure 3.

[0006] As an improvement, the treatment structure 1 includes an air-water separator A and a deoxygenation tower, the deoxygenation tower is arranged on one side of the air-water separator A, and the deoxygenation tower is connected to the air-water separator A. A drying tower C is provided on one side of the deoxygenation tower, and the drying tower C is provided on the side of the deoxygenation tower away from the air-water separator A. A drying tower A is provided on one side of the drying tower C, and the drying tower A is provided between the deoxygenation tower and the drying tower C. A drying tower B is provided on one side of the drying tower C, and the drying tower B is provided between the drying tower A and the drying tower C. A hydrogen filter A is provided on one side of the drying tower C, and the hydrogen filter A is connected to the drying tower A, the drying tower B and the drying tower C. A hydrogen filter B is provided on one side of the hydrogen filter A, and the hydrogen filter B is connected to the hydrogen filter A.

[0007] As an improvement, the treatment structure 2 includes a cooler A, which is connected to the deoxygenation tower. A cooler D is provided on one side of the cooler A, and the cooler D is connected to the drying tower C. A cooler B is provided on one side of the cooler A, and the cooler B is arranged between cooler A and cooler D, and the cooler B is connected to the drying tower A. A cooler C is provided on one side of the cooler A, and the cooler C is arranged between cooler B and cooler D, and the cooler C is connected to the drying tower B.

[0008] As an improvement, the processing structure three includes an air-water separator B, and the air-water separator B is connected to the cooler A. An air-water separator C is provided on one side of the air-water separator B, and the air-water separator C is connected to the cooler B. An air-water separator D is provided on the side of the air-water separator C away from the air-water separator B, and the air-water separator D is connected to the cooler C. An air-water separator E is provided on the side of the air-water separator D away from the air-water separator C, and the air-water separator E is connected to the cooler D. A water seal tank is provided on one side of the air-water separator B, and a water collector is provided on one side of the water seal tank, and the water seal tank is connected to the air-water separator A, air-water separator B, air-water separator C, air-water separator D and air-water separator E through the water collector.

[0009] The beneficial effects of the utility model are:

[0010] The utility model discloses a large-scale hydrogen purification production device with a built-in heater.

[0011] 1. This utility model patent uses a method of building a heater into the drying tower to regenerate the molecular sieve in the drying tower without adding an additional heat exchanger. The overall equipment investment of this process is small. At the same time, the method of building a heater into the drying tower improves the heating efficiency.

[0012] 2. The utility model patent has a built-in heating regeneration drying molecular sieve method, which is easy to implement and industrialize on a large scale, providing a practical purification process for the large-scale Qianfang four-in-one device hydrogen purification system. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural diagram of the present utility model.

[0014] Reference table of accompanying symbols:

[0015] 1. Gas-water separator A; 2. Deoxidation tower; 3. Cooler A; 4. Gas-water separator B; 5. Gas-water separator C; 6. Gas-water separator D; 7. Gas-water separator E; 8. Cooler B; 9. Cooler C; 10. Cooler D; 11. Drying tower A; 12. Drying tower B; 13. Drying tower C; 14. Hydrogen filter A; 15. Hydrogen filter B; 16. Water collector; 17. Water seal tank. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0017] In order to solve the technical problems in the background technology, a large-scale hydrogen purification production device with a built-in heater is provided as follows:

[0018] Combine Figure 1As shown, the utility model provides a large-scale hydrogen purification production device with a built-in heater, including a processing structure 1, a processing structure 2 and a processing structure 3. The processing structure 1 includes a gas-water separator A1, a deoxidation tower 2, a drying tower A11, a drying tower B12, a drying tower C13, a hydrogen filter A14, and a hydrogen filter B15. The processing structure 2 includes a cooler A3, a cooler B8, a cooler C9, and a cooler D10. The processing structure 3 includes a gas-water separator B4, a gas-water separator C5, a gas-water separator D6, a gas-water separator E7, a water collector 16 and a water seal tank 17. The processing structure 1 is arranged on the top of the processing structure 2, and the processing structure 2 is arranged on the top of the processing structure 3. Structure 1 includes a gas-water separator A1 and a deoxidation tower 2. The deoxidation tower 2 is arranged on one side of the gas-water separator A1 and is communicated with the gas-water separator A1. A drying tower C13 is provided on one side of the deoxidation tower 2. The drying tower C13 is arranged on the side of the deoxidation tower 2 away from the gas-water separator A1. A drying tower A11 is provided on one side of the drying tower C13, and the drying tower A11 is arranged between the deoxidation tower 2 and the drying tower C13. A drying tower B12 is provided on one side of the drying tower C13, and the drying tower B12 is arranged between the drying tower A11 and the drying tower C13. A hydrogen filter A14 is provided on one side of the drying tower C13, and the hydrogen filter A14 is communicated with the drying tower A11, the drying tower B12 and the drying tower C13. A hydrogen filter B15 is provided on one side of the gas filter A14, and the hydrogen filter B15 is connected to the hydrogen filter A14. The treatment structure 2 includes a cooler A3, which is connected to the deoxidation tower 2. A cooler D10 is provided on one side of the cooler A3, and the cooler D10 is connected to the drying tower C13. A cooler B8 is provided on one side of the cooler A3, and the cooler B8 is arranged between the cooler A3 and the cooler D10, and the cooler B8 is connected to the drying tower A11. A cooler C9 is provided on one side of the cooler A3, and the cooler C9 is arranged between the cooler B8 and the cooler D10, and the cooler C9 is connected to the drying tower B12. The treatment structure 3 includes a gas-water separator B4, and the gas-water separator The air-water separator B4 is connected with the cooler A3, an air-water separator C5 is provided on one side of the air-water separator B4, and the air-water separator C5 is connected with the cooler B8, an air-water separator D6 is provided on the side of the air-water separator C5 away from the air-water separator B4, and the air-water separator D6 is connected with the cooler C9, an air-water separator E7 is provided on the side of the air-water separator D6 away from the air-water separator C5, and the air-water separator E7 is connected with the cooler D10, a water seal tank 17 is provided on one side of the air-water separator B4, a water collector 16 is provided on one side of the water seal tank 17, and the water seal tank 17 is connected with the air-water separator A1, the air-water separator B4, the air-water separator C5, the air-water separator D6 and the air-water separator E7 through the water collector 16.

[0019] The working principle and use process of this utility model:

[0020] In use: crude hydrogen first enters the gas-water separator A1 to separate hydrogen and trace water, and then enters the deoxidation tower 2 for deoxidation under the action of the catalyst. Under the action of the catalyst, trace oxygen and hydrogen react to form water. The hydrogen with oxygen removed enters the cooler A3 for cooling, and after cooling, enters the gas-water separator B4. The hydrogen out of the top of the gas-water separator enters the three-tower drying tower for dehydration. The hydrogen can first enter the gas-water separator C5, gas-water separator D6 or gas-water separator E7, and then enter the cooler B8, cooler C9 or cooler D10, and finally enter the drying tower A11, drying tower B12 or drying tower C13 for dehydration. Most of the dried hydrogen passes through the hydrogen filter A14 or hydrogen filter B15 to exit the system, and a small part of the dried hydrogen enters the drying tower as regeneration gas. Drying tower A11, drying tower B12 or drying tower C13 is first heated to the temperature required for regeneration by a built-in heater. Then, after the gas reaches the bottom of the drying tower, it is heated and purged to remove the water adsorbed by the molecular sieve. The regenerated water enters cooler B8, cooler C9 or cooler D10, and then enters gas-water separator C5, gas-water separator D6 or gas-water separator E7. Finally, it enters drying tower A11, drying tower B12 or drying tower C13 again to adsorb the regenerated gas and merge it with the working gas to exit the system. Drying tower A11, drying tower B12 and drying tower C13 are used for working, regeneration and regeneration gas adsorption respectively. The water at the bottom of gas-water separator B4, gas-water separator C5, gas-water separator D6 and gas-water separator E7 is discharged to water collector 16 through an automatic valve and exits the system through water seal tank 17.

[0021] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0022] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A large-scale hydrogen purification production device with a built-in heater, characterized in that: The invention comprises a treatment structure 1, a treatment structure 2 and a treatment structure 3, wherein the treatment structure 1 comprises a gas-water separator A (1), a deoxidation tower (2), a drying tower A (11), a drying tower B (12), a drying tower C (13), a hydrogen filter A (14) and a hydrogen filter B (15); the treatment structure 2 comprises a cooler A (3), a cooler B (8), a cooler C (9) and a cooler D (10); the treatment structure 3 comprises a gas-water separator B (4), a gas-water separator C (5), a gas-water separator D (6), a gas-water separator E (7), a water collector (16) and a water seal tank (17); the treatment structure 1 is arranged on the top of the treatment structure 2, and the treatment structure 2 is arranged on the top of the treatment structure 3.

2. A large-scale hydrogen purification production device with a built-in heater according to claim 1, characterized in that: The treatment structure 1 includes a gas-water separator A (1) and a deoxidation tower (2), wherein the deoxidation tower (2) is arranged on one side of the gas-water separator A (1) and is communicated with the gas-water separator A (1), a drying tower C (13) is arranged on one side of the deoxidation tower (2), and the drying tower C (13) is arranged on a side of the deoxidation tower (2) away from the gas-water separator A (1), a drying tower A (11) is arranged on one side of the drying tower C (13), and the drying tower A (11) is arranged between the deoxidation tower (2) and the drying tower C (13). A drying tower B (12) is provided on one side of the drying tower C (13), and the drying tower B (12) is arranged between the drying tower A (11) and the drying tower C (13). A hydrogen filter A (14) is provided on one side of the drying tower C (13), and the hydrogen filter A (14) is communicated with the drying tower A (11), the drying tower B (12) and the drying tower C (13). A hydrogen filter B (15) is provided on one side of the hydrogen filter A (14), and the hydrogen filter B (15) is communicated with the hydrogen filter A (14).

3. A large-scale hydrogen purification production device with a built-in heater according to claim 2, characterized in that: The treatment structure 2 includes a cooler A (3), the cooler A (3) is connected to the deoxidation tower (2), a cooler D (10) is provided on one side of the cooler A (3), and the cooler D (10) is connected to the drying tower C (13), a cooler B (8) is provided on one side of the cooler A (3), the cooler B (8) is arranged between the cooler A (3) and the cooler D (10), and the cooler B (8) is connected to the drying tower A (11), a cooler C (9) is provided on one side of the cooler A (3), the cooler C (9) is arranged between the cooler B (8) and the cooler D (10), and the cooler C (9) is connected to the drying tower B (12).

4. A large-scale hydrogen purification production device with a built-in heater according to claim 3, characterized in that: The treatment structure three includes an air-water separator B (4), and the air-water separator B (4) is connected to the cooler A (3), an air-water separator C (5) is provided on one side of the air-water separator B (4), and the air-water separator C (5) is connected to the cooler B (8), and an air-water separator D (6) is provided on the side of the air-water separator C (5) away from the air-water separator B (4), and the air-water separator D (6) is connected to the cooler C (9), and the air-water separator D (6) is away from the air An air-water separator E (7) is provided on one side of the water separator C (5), and the air-water separator E (7) is communicated with the cooler D (10). A water seal tank (17) is provided on one side of the air-water separator B (4), and a water collector (16) is provided on one side of the water seal tank (17), and the water seal tank (17) is communicated with the air-water separator A (1), the air-water separator B (4), the air-water separator C (5), the air-water separator D (6) and the air-water separator E (7) through the water collector (16).

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