Distributed methanol hydrogen production device

Abstract

The utility model belongs to the technical field of hydrogen production equipment, and particularly relates to a distributed methanol hydrogen production device which comprises a heater, a purifier is sleeved outside the heater, and a hydrogen outlet is formed in the purifier; the reformer is sleeved outside the purifier, the evaporator is sleeved outside the reformer, and a methanol inlet is formed in the evaporator; a first communicating vessel communicated with the reformer is arranged on the evaporator, and a second communicating vessel communicated with the purifier is arranged on the reformer; a spiral plate for guiding flow of hydrogen is arranged in the purifier, and through holes are uniformly distributed in the spiral plate; the distributed methanol hydrogen production device effectively solves the problem that the existing distributed methanol hydrogen production device is poor in purification effect.

Description

Technical Field

[0001] The utility model belongs to the technical field of hydrogen production equipment, and specifically relates to a distributed methanol hydrogen production device. Background Art

[0002] Methanol-to-hydrogen is a technological route for hydrogen production. China is the world's largest methanol producer, accounting for 60% of global methanol production capacity. Methanol is abundant, inexpensive, and easy to store and transport as a liquid at room temperature and pressure. Compared to other hydrogen production methods, such as industrial hydrogen production, methanol-to-hydrogen has lower energy consumption and costs.

[0003] The methanol-water evaporator, reformer, and purifier are key components in a hydrogen production system. Within a commonly used ratio range, the required temperature for methanol-water evaporation is generally 70-80°C, the reforming reaction temperature is generally 200-300°C, and the purifier operating temperature is generally 400°C. All three units are endothermic. To minimize external energy consumption, a rational layout of these three units is necessary.

[0004] For example, the Chinese invention patent with authorization number: CN114436210B discloses an efficient integrated distributed methanol reforming hydrogen production and purification system, including: a methanol-water solution evaporator, a methanol steam reformer, a hydrogen purifier, a first diverter device and a second diverter device; the first diverter device is used to divide the methanol steam into at least two parts and introduce them into the methanol steam reformer respectively; the second diverter device is used to merge the reformed gas produced by the at least one methanol steam reformer and transport it to the at least one hydrogen purifier; the hydrogen purifier is equipped with a heating module, the methanol-water solution evaporator completely or partially covers the methanol steam reformer, and the methanol steam reformer completely or partially covers the hydrogen purifier; the efficient integrated distributed methanol reforming hydrogen production and purification system solves the problems of long preheating time, slow startup, less compact system structure and low energy utilization efficiency of small distributed methanol-water reforming hydrogen production devices.

[0005] Although the above application can highly integrate the methanol-water solution evaporator, reformer and purifier to make the hydrogen preparation and purification process more efficient; however, in actual use, since the hydrogen is purified directly through the pipeline when passing through the purifier, no corresponding flow guide components are provided in the middle, the flow path of the hydrogen is short, and a larger purifier is required to achieve the hydrogen purification effect. Utility Model Content

[0006] In view of the above situation, in order to overcome the defects of the existing technology, the utility model provides a distributed methanol hydrogen production device, which effectively solves the problem of poor purification effect of the existing distributed methanol hydrogen production device.

[0007] To achieve the above objectives, the present invention adopts the following technical solutions: a distributed methanol hydrogen production device, comprising a heater, a purifier is provided outside the heater, and a hydrogen outlet is provided on the purifier; a reformer is provided outside the purifier, an evaporator is provided outside the reformer, and a methanol inlet is provided on the evaporator; a first communicating vessel connected to the reformer is provided on the evaporator, and a second communicating vessel connected to the purifier is provided on the reformer; a spiral plate for guiding hydrogen is provided in the purifier, and the spiral plate is evenly distributed with perforations.

[0008] Furthermore, the evaporator includes a sleeve sleeved on the outer periphery of the heater, and the sleeve is provided with a receiving cavity corresponding to the heater.

[0009] Furthermore, the inner wall of the sleeve is provided with a palladium membrane structure for purifying hydrogen.

[0010] Furthermore, the outer wall of the sleeve is fixedly connected with partitions evenly arranged along the circumference, and the reformer is arranged between adjacent partitions.

[0011] Furthermore, a support tube is provided between the reformer and the evaporator, and an elastic clamping plate corresponding to the reformer is fixedly connected to the inner wall of the support tube.

[0012] Furthermore, a limiting block corresponding to the partition is fixedly connected to the inner wall of the support tube, and a limiting groove corresponding to the partition is provided on the limiting block.

[0013] Furthermore, the inner wall of the reformer is provided with heat exchange fins.

[0014] Furthermore, both the first communicating vessel and the second communicating vessel are provided with flow regulating valves.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] When the utility model is in use, the heater, purifier, reformer and evaporator are arranged in layers, so that the application is highly integrated, meeting the different temperature requirements of each and achieving maximum energy utilization; in addition, the spiral plate is set to guide the reformed gas, improve the flow path of the reformed gas, and purify the reformed gas to high-purity hydrogen. The volume of the required purifier is smaller, thereby improving the purification effect of the application. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is the first cross-sectional view of the present utility model;

[0018] Figure 2 This is a second cross-sectional view of the present invention;

[0019] Figure 3 For this utility model Figure 2 A magnified schematic diagram of area A in the middle;

[0020] In the figure: 1. Evaporator, 2. Reformer, 3. Purifier, 4. Spiral plate, 5. Heater, 6. First communicating vessel, 7. Second communicating vessel, 8. Hydrogen outlet, 9. Perforation, 10. Partition, 11. Support tube, 12. Elastic splint, 13. Heat exchange fin, 14. Limit block. DETAILED DESCRIPTION

[0021] A distributed methanol hydrogen production device, such as Figure 1-3 As shown, it includes a heater 5, which is arranged on the outer surface of the purifier 3, and the purifier 3 is provided with a hydrogen outlet 8; the purifier 3 is arranged on the outer surface of the reformer 2, and the reformer 2 is provided with an evaporator 1, and the evaporator 1 is provided with a methanol inlet; the evaporator 1 is provided with a first communicating vessel 6 connected to the reformer 2, and the reformer 2 is provided with a second communicating vessel 7 connected to the purifier 3; the purifier 3 is provided with a spiral plate 4 for guiding hydrogen, and the spiral plate 4 is evenly distributed with perforations 9.

[0022] When the present application is in use, the methanol-water solution evaporates into methanol-water vapor under the action of the evaporator 1, and the methanol-water vapor enters the reformer 2 through the first communicating vessel 6 for reforming; a reforming catalyst is provided in the reformer 2, and the methanol-water vapor generates reformed gas under the action of the reforming catalyst; the reformed gas enters the purifier 3 through the second communicating vessel 7, and the reformed gas is guided in the purifier 3 under the action of the spiral plate 4 to make the flow path of the reformed gas longer, so that the reformed gas is purified into high-purity hydrogen under the action of the purifier 3, and the high-purity hydrogen flows out through the hydrogen outlet 8; through the arrangement of the spiral plate 4, the reformed gas is guided, the flow path of the reformed gas is improved, and the reformed gas is purified to high-purity hydrogen, the required volume of the purifier 3 is smaller, and the purification effect of the present application is improved.

[0023] Furthermore, the evaporator 1 includes a sleeve sleeved on the outer periphery of the heater 5, the sleeve is provided with a receiving cavity corresponding to the heater 5, and the heater 5 uniformly heats the sleeve through the receiving cavity; the inner wall of the sleeve is provided with a palladium membrane structure for purifying hydrogen.

[0024] Furthermore, the outer wall of the sleeve is fixed with partitions 10 evenly arranged along the circumference, and the reformer 2 is arranged between adjacent partitions 10; the partitions 10 allow the heat on the sleeve to be dissipated outward more quickly, heating the reformer 2 and the evaporator 1.

[0025] Furthermore, a support tube 11 is provided between the reformer 2 and the evaporator 1, and an elastic clamp 12 corresponding to the reformer 2 is fixed to the inner wall of the support tube 11; the reformer 2 is fixed by the elastic clamp 12 to improve the stability of the reformed gas; the evaporator 1 is spirally sleeved on the support tube 11.

[0026] Furthermore, a limit block 14 corresponding to the partition 10 is fixed to the inner wall of the support tube 11, and a limit groove corresponding to the partition 10 is provided on the limit block 14; the limit groove on the limit block 14 cooperates with the partition 10 to improve the stability of the support tube 11 and the sleeve of the evaporator 1.

[0027] Furthermore, heat exchange fins 13 are provided on the inner wall of the reformer 2 to improve the heat exchange effect of the reformer 2.

[0028] Furthermore, the first communicating vessel 6 and the second communicating vessel 7 are both provided with flow regulating valves, and the flow of the present application is regulated by the flow regulating valves, thereby improving the convenience of the present application.

Claims

1. A distributed methanol hydrogen production device, characterized by: The invention comprises a heater (5), a purifier (3) is provided on the outer jacket of the heater (5), and a hydrogen outlet (8) is provided on the purifier (3); a reformer (2) is provided on the outer jacket of the purifier (3), an evaporator (1) is provided on the outer jacket of the reformer (2), and a methanol inlet is provided on the evaporator (1); a first connecting vessel (6) communicating with the reformer (2) is provided on the evaporator (1), and a second connecting vessel (7) communicating with the purifier (3) is provided on the reformer (2); a spiral plate (4) for guiding hydrogen is provided in the purifier (3), and perforations (9) are uniformly distributed on the spiral plate (4).

2. The distributed methanol-to-hydrogen device according to claim 1, characterized in that: The evaporator (1) comprises a sleeve sleeved on the outer periphery of the heater (5), and a receiving cavity corresponding to the heater (5) is provided on the sleeve.

3. The distributed methanol-to-hydrogen device according to claim 2, characterized in that: The inner wall of the sleeve is provided with a palladium membrane structure for purifying hydrogen.

4. The distributed methanol-to-hydrogen device according to claim 2, characterized in that: The outer wall of the sleeve is fixedly connected with partitions (10) evenly arranged along the circumference, and the reformer (2) is arranged between adjacent partitions (10).

5. The distributed methanol-to-hydrogen device according to claim 4, characterized in that: A support cylinder (11) is provided between the reformer (2) and the evaporator (1), and an elastic clamping plate (12) corresponding to the reformer (2) is fixedly connected to the inner wall of the support cylinder (11).

6. The distributed methanol-to-hydrogen device according to claim 5, characterized in that: A limiting block (14) corresponding to the partition (10) is fixedly connected to the inner wall of the support cylinder (11), and a limiting groove corresponding to the partition (10) is provided on the limiting block (14).

7. The distributed methanol-to-hydrogen device according to claim 1, characterized in that: The inner wall of the reformer (2) is provided with heat exchange fins (13).

8. The distributed methanol-to-hydrogen device according to claim 1, characterized in that: The first communicating vessel (6) and the second communicating vessel (7) are both provided with flow regulating valves.

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