Methanol hydrogen production equipment

Abstract

The utility model relates to equipment for producing hydrogen from methanol, in particular to equipment for producing hydrogen from methanol, which is high in hydrogen production efficiency and methanol cracking rate, and comprises methanol gasification tanks, a heat exchange device, a cracking device and a condensation separation tank, discharge ports of the methanol gasification tanks are connected with methanol gas inlet ends of the corresponding heat exchange devices through gas pipes, methanol gas outlet ends of the heat exchange devices are connected with a gas inlet main pipe of the cracking device through gas pipes, and a gas outlet main pipe of the cracking device is connected with hydrogen gas inlet ends of the heat exchange devices through gas pipes. A hydrogen outlet end of the heat exchange device is connected with a hydrogen inlet of the condensation separation tank through a gas pipe; a hydrogen outlet for outputting hydrogen is formed in the condensation separation tank; the cracking device comprises a heating box and a plurality of groups of reaction pipes arranged in the heating box, the reaction pipes are arranged in the heating box side by side, the inlet ends of the reaction pipes are connected with the gas inlet main pipe, the outlet ends of the reaction pipes are connected with the gas outlet main pipe, and the reaction pipes are filled with a methanol cracking catalyst.

Description

Technical Field

[0001] The utility model relates to the field of hydrogen production equipment, in particular to methanol hydrogen production equipment. Background Art

[0002] As a recognized clean energy, hydrogen energy is emerging as a low-carbon and zero-carbon energy in today's society. At present, in industrial production, methanol cracking is generally used to prepare hydrogen. For example, the patent document with publication number CN116899495A discloses a hydrogen-rich gas generating device, including a steam generator, a superheater and a hydrogen reactor, wherein the steam generator is used to prepare steam, and the steam generated by the steam generator is transported to the superheater, and the superheater is used to heat the steam prepared by the steam generator. The steam further heated by the superheater is transported to the hydrogen reactor, and finally the purpose of hydrogen production is achieved. The disadvantage of this scheme is that the hydrogen reactor of this scheme has poor temperature control effect on hydrogen, so the efficiency of preparing hydrogen is low and the methanol conversion rate is low. Moreover, this scheme heats methanol gas by exhaust gas combustion. Because there are few combustible substances in the exhaust gas, although some heat can be utilized, the thermal efficiency is low and the heating effect of methanol gas is poor, so it needs to be improved. Summary of the Invention

[0003] The purpose of the utility model is to provide a methanol hydrogen production device to address the problems of low hydrogen production efficiency, low methanol conversion rate, poor heating effect of methanol gas, etc. in the existing hydrogen production equipment described in the background technology.

[0004] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0005] A methanol hydrogen production device includes a methanol vaporizer, a heat exchanger, a cracking device, and a condensation separation tank. There are two groups of methanol vaporizers and heat exchangers. A balancing pipe is provided between the two groups of methanol vaporizers for balancing the gas pressure and temperature in the two groups of methanol vaporizers. The discharge port of the methanol vaporizer is connected to the methanol gas inlet end of the corresponding heat exchanger through an air pipe. The methanol gas outlet end of the heat exchanger is connected to the main air inlet of the cracking device through an air pipe. The main air outlet of the cracking device is connected to the hydrogen inlet end of the heat exchanger through an air pipe. The hydrogen outlet end of the heat exchanger is connected to the hydrogen inlet of the condensation separation tank through an air pipe. The condensation separation tank is provided with a hydrogen outlet for outputting hydrogen.

[0006] The cracking device includes a heating box and multiple groups of reaction tubes arranged in the heating box. The reaction tubes are arranged side by side in the heating box. The inlet ends of the reaction tubes are connected to the air inlet main pipe, and the outlet ends of the reaction tubes are connected to the air outlet main pipe. The reaction tubes are filled with methanol cracking catalyst.

[0007] In the above scheme, the methanol vaporizer includes a tank body, a feed port is provided at the bottom of the tank body, a discharge port is provided at the top of the tank body, a heating device is provided inside the tank body, a main feed pipe is connected between the feed ports of the two groups of methanol vaporizers, and the discharge port is connected to the methanol gas inlet end of the corresponding heat exchange device through an air pipe; the said balancing pipe includes two groups, the two ends of one group of balancing pipes are respectively connected to the middle of the two groups of methanol vaporizers, and the two ends of the other group of balancing pipes are respectively connected to the top of the two groups of methanol vaporizers. Through this arrangement, the two groups of methanol vaporizers can be used to vaporize methanol, and the temperature of methanol is heated to 90°C, and the pressure of methanol gas reaches a preset pressure. The two groups of methanol vaporizers are fed through the main feed pipe, which can balance the feed of the two groups of methanol vaporizers. By providing two sets of balancing pipes, the temperature and pressure of the methanol gas in the two groups of methanol vaporizers can be more balanced and stable, which is beneficial to the subsequent cracking reaction of the methanol gas.

[0008] In the above embodiment, a liquid level gauge mounting pipe is provided on the upper portion of the methanol vaporizer, which is connected to the side wall of the methanol vaporizer via the liquid level gauge mounting pipe. The installation of the liquid level gauge facilitates monitoring of the amount of methanol in the methanol vaporizer and facilitates controlling the addition of methanol liquid to the methanol vaporizer by the feeding device.

[0009] In the above scheme, the heat exchange device includes a cylindrical housing, with a methanol gas inlet and a hydrogen gas outlet provided at the lower portion of the cylindrical housing, and a methanol gas outlet and a hydrogen gas inlet provided at the upper portion of the cylindrical housing. Heat exchange pipes for hydrogen and methanol gases are provided within the heat exchange device. With this arrangement, methanol gas enters the heat exchange device through the methanol gas inlet at the lower portion and exits through the methanol gas outlet at the upper portion of the heat exchange device, while hot hydrogen output from the cracking device enters the hydrogen gas inlet at the upper portion of the heat exchange device and exits through the hydrogen gas outlet at the lower portion of the heat exchange device. As a result, methanol and hydrogen flow in opposite directions within corresponding pipes within the heat exchange device, improving heat exchange efficiency and enabling heat transfer from the hot hydrogen gas to the methanol gas. This reduces the temperature of the hydrogen gas output from the cracking device from 280°C to 130-150°C, while increasing the temperature of the methanol gas from 90°C to 130-150°C. This reduced hydrogen temperature facilitates subsequent condensation and separation of the hydrogen gas.

[0010] In the above embodiment, the cracking device includes a housing, within which are disposed two sets of heating boxes, both of which are electric heating boxes. Each heating box is provided with multiple sets of heating medium inlets and outlets, and each of the heating boxes houses several sets of reaction tubes. This arrangement allows both sets of electric heating boxes to simultaneously crack methanol gas, improving production efficiency. Using the electric heating boxes to provide heat energy for the methanol cracking reaction ensures a more stable heat supply and a more complete cracking reaction.

[0011] In the above scheme, each group of reaction tubes includes four vertical tubes and three sets of connecting elbows. The vertical tubes are vertically arranged in the heating box at a set interval in the front-to-back direction. The three sets of connecting elbows are used to connect the four vertical tubes. The inlet main pipe and the outlet main pipe are both arranged at the top of the heating box. The inlet main pipe is arranged on the side near the air inlet of the reaction tube, and the outlet main pipe is arranged on the side near the air outlet of the reaction tube. The inlet main pipe includes a main pipe, an inlet pipe, and a branch pipe. The air inlet of each reaction tube is respectively connected to the branch pipe of the inlet main pipe. The outlet main pipe includes a main pipe, an outlet pipe, and a branch pipe. The air outlet of each reaction tube is respectively connected to the branch pipe of the outlet main pipe. Through this arrangement, methanol gas is transmitted through the curved channel in the reaction tube, which can more fully contact with the cracking catalyst, so that the cracking reaction of methanol gas can be more complete, the methanol reaction rate is improved, and the hydrogen production efficiency is improved.

[0012] In the above embodiment, the upper and lower portions of the heating box are each provided with a positioning plate to support and position the reaction tube. Each positioning plate has a positioning hole through which the reaction tube passes. The inlet and outlet main pipes are both mounted on the upper positioning plate, with the inlet main pipe located at the rear side of the positioning plate and the outlet main pipe located at the front side. This arrangement supports and positions the reaction tube, ensuring a more stable assembly of the reaction tube within the heating box.

[0013] In the above embodiment, the condensation separation tank is provided with a hydrogen inlet at its lower portion for inputting hydrogen, a hydrogen outlet at its upper portion for outputting hydrogen, and a condensate medium input port and a condensate medium output port on its sidewall. This arrangement allows the produced hydrogen to be cooled and unreacted methanol to be liquefied and separated, thereby improving the purity of the produced hydrogen.

[0014] The utility model has positive effects: 1) The methanol hydrogen production equipment of the utility model can make the gas pressure and temperature of the methanol gas in the two groups of methanol gasification tanks more balanced and stable by setting two groups of methanol gasification tanks and balancing pipes, so as to improve the subsequent methanol cracking efficiency; 2) The methanol hydrogen production equipment of the utility model can heat the methanol gas by using the hydrogen prepared by methanol cracking through the heat exchange device, so that the temperature of the 280°C hot hydrogen output by the cracking device drops rapidly, so as to facilitate the subsequent condensation and separation of the uncracked methanol in the hydrogen, and at the same time the heat of the hydrogen is released by the heat exchange device. The heat exchange is transferred to the methanol gas, so that the temperature of the methanol gas delivered by the methanol vaporization tank rises from 90°C to 130-150°C, so that the methanol gas delivered to the cracking device can be heated to the cracking temperature of methanol more quickly, thereby improving the cracking rate of methanol and improving the production efficiency of hydrogen; 3) The methanol hydrogen production equipment of the present invention is provided with multiple groups of reaction tubes arranged side by side in the cracking device, and the methanol gas in the reaction tube is heated by a heating box. The methanol gas is split and enters each reaction tube for cracking reaction. This arrangement improves the cracking efficiency of the methanol gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural schematic diagram of the methanol hydrogen production equipment of the present invention.

[0016] Figure 2 This is a structural schematic diagram of the methanol hydrogen production equipment of the present invention (the shell of the cracking device is not shown).

[0017] Figure 3 This is a schematic diagram of the rear structure of the methanol hydrogen production equipment of the present invention (the shell of the cracking device is not shown).

[0018] Figure 4 This is a structural diagram of the methanol hydrogen production equipment of the present invention (the cracking device heating box is not shown).

[0019] Figure 5 This is a schematic diagram of the connection structure of the methanol vaporization tank, heat exchange device and condensation separation tank.

[0020] Figure 6 This is a schematic diagram of the left side connection structure of the methanol vaporization tank, heat exchange device and condensation separation tank.

[0021] Figure 7 This is a schematic diagram of the rear connection structure of the methanol vaporization tank, heat exchange device and condensation separation tank.

[0022] The accompanying drawings are marked as follows: methanol gasification tank 1, feed port 11, main feed pipeline 12, discharge port 13, balance pipe 14, liquid level gauge installation pipe 15, heat exchange device 2, methanol gas inlet end 21, hydrogen gas outlet end 22, methanol gas outlet end 23, hydrogen gas inlet end 24, cracking device 3, shell 31, heating box 32, reaction tube 33, vertical pipe 331, connecting elbow 332, positioning installation plate 34, gas inlet main pipe 35, gas outlet main pipe 36, heating medium inlet 37, heating medium outlet 38, condensation separation tank 4, hydrogen gas inlet 41, hydrogen gas outlet 42, condensing medium input port 43, condensing medium output port 44. DETAILED DESCRIPTION

[0023] The following examples clearly and completely describe the technical solutions of the present invention. Obviously, the examples described are only a portion of the embodiments of the present invention, not all of them. Based on the examples of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0024] like Figure 1-7 As shown, the methanol hydrogen production equipment of the present invention includes a methanol vaporization tank 1, a heat exchange device 2, a cracking device 3 and a condensation separation tank 4.

[0025] like Figure 5-7 As shown, there are two groups of methanol vaporizers 1. Both groups include a tank body with a feed port 11 at the bottom. A main feed pipe 12 is connected between the feed ports 11 of the two groups of methanol vaporizers 1. Feeding is carried out through the main feed pipe 12, ensuring balanced feeding of the two groups of methanol vaporizers 1. A discharge port 13 is provided at the top of the tank body. The discharge port 13 of the methanol vaporizer 1 is connected to the methanol gas inlet 21 of the corresponding heat exchange device 2 via an air pipe. A heating device is provided within the tank body. The two groups of methanol vaporizers 1 are used to vaporize methanol, heating the methanol to a temperature of 90°C and maintaining the methanol gas pressure at a preset pressure.

[0026] A balancing pipe 14 is connected between the two sets of methanol vaporization tanks 1. Preferably, two sets of balancing pipes 14 are provided, with the ends of one set of balancing pipes 14 connected to the middle of the two sets of methanol vaporization tanks 1, and the ends of the other set of balancing pipes 14 connected to the tops of the two sets of methanol vaporization tanks 1. Providing two sets of balancing pipes 14 can ensure a more balanced and stable temperature and pressure of the methanol gas in the two sets of methanol vaporization tanks 1, which is beneficial for the subsequent cracking reaction of the methanol gas.

[0027] In order to facilitate monitoring of the amount of methanol in the methanol vaporization tank 1 , a liquid level gauge mounting pipe 15 is provided on the upper portion of the methanol vaporization tank 1 , and the liquid level gauge is connected to the side wall of the methanol vaporization tank 1 through the liquid level gauge mounting pipe 15 .

[0028] like Figure 5-7 As shown, there are two sets of heat exchangers 2, each connected to a corresponding set of methanol vaporizers 1. The heat exchangers 2 comprise a cylindrical housing, with a methanol gas inlet 21 and a hydrogen gas outlet 22 located at the bottom, and a methanol gas outlet 23 and a hydrogen gas inlet 24 located at the top. Heat exchangers 2 are provided within the heat exchangers 2 for hydrogen and methanol. Through this arrangement, methanol gas enters from the methanol gas inlet end 21 at the lower part of the heat exchanger 2 and is output from the methanol gas outlet end 23 at the upper part of the heat exchanger 2, while the hot hydrogen output from the cracking device 3 enters from the hydrogen gas inlet end 24 at the upper part of the heat exchanger 2 and is output from the hydrogen gas outlet end 22 at the lower part of the heat exchanger 2. Therefore, methanol and hydrogen flow in corresponding pipes in opposite directions in the heat exchanger, thereby improving the heat exchange efficiency and allowing the heat of the hot hydrogen to be transferred to the methanol gas. As a result, the temperature of the hydrogen transported from the cracking device 3 into the heat exchanger 2 is reduced from 280°C when entering the heat exchanger 2 to 130-150°C when leaving the heat exchanger 2, while the temperature of the methanol gas rises from 90°C to 130-150°C. The reduction in the hydrogen temperature makes it easier to subsequently condense and separate the hydrogen.

[0029] The methanol gas inlet 21 of the heat exchanger 2 is connected to the discharge port 13 of the methanol vaporizer 1 via a gas pipe. The methanol gas outlet 23 of the heat exchanger 2 is connected to the gas inlet main 35 of the cracking unit 3 via a gas pipe. The hydrogen gas inlet 24 of the heat exchanger 2 is connected to the gas outlet main 36 of the cracking unit 3. The hydrogen gas outlet 22 of the heat exchanger 2 is connected to the hydrogen gas inlet 41 on the condensation separation tank 4 via a gas pipe.

[0030] like Figure 1-4 As shown, the cracking device 3 includes a shell 31, a heating box 32 and multiple groups of reaction tubes 33 arranged in the heating box 32. The heating box 32 is arranged in the shell 31. Preferably, two groups of heating boxes 32 are arranged in the shell 31. The heating boxes 32 are preferably electric heating boxes. Multiple groups of reaction tubes 33 are arranged side by side in each group of heating boxes. Multiple groups of heating medium inlets 37 and heating medium outlets 38 are respectively provided on the heating boxes 32.

[0031] like Figure 4 As shown, the upper and lower portions of the heating box 32 are each provided with positioning plates 34 to support and position the reaction tube 33. Positioning holes are defined in the positioning plates 34, through which the reaction tube 33 passes. This arrangement supports and positions the reaction tube 33, ensuring a more stable assembly of the reaction tube 33 within the heating box 32.

[0032] The structure of the reaction tube 33 can be set as needed, for example, Figure 4In the embodiment shown, each group of reaction tubes includes four vertical tubes 331 and three groups of connecting elbows 332. The vertical tubes 331 are vertically arranged in the heating box 32 at a set interval in the front-to-back direction. The three groups of connecting elbows 332 are used to connect the four vertical tubes 331. One connecting elbow 332 is connected between the lower ends of the first vertical tube and the second vertical tube, another connecting elbow 332 is connected between the second vertical tube and the upper ends of the third vertical tube, and the third connecting elbow 332 is connected between the lower ends of the third vertical tube and the fourth vertical tube. Through this arrangement, the upper tube opening of the first vertical tube serves as the air inlet of the reaction tube 33, and the upper tube opening of the fourth vertical tube serves as the air outlet of the reaction tube 33.

[0033] The reaction tube 33 is filled with a methanol cracking catalyst. In order to improve the efficiency of the methanol cracking reaction, a high-efficiency methanol cracking catalyst may be filled in the reaction tube 33 .

[0034] Inside both heating boxes 32, an upper positioning mounting plate 34 is provided with an air inlet pipe 35 and an air outlet pipe 36. The air inlet pipe 35 is located on the side close to the air inlet of the reaction tube 33 and is located at the rear side of the positioning mounting plate 34. The air outlet pipe 36 is located on the side close to the air outlet of the reaction tube 33 and is located at the front side of the positioning mounting plate 34.

[0035] The air intake main pipe 35 includes a main pipe, an air intake pipe and a branch pipe. The air inlet of each reaction tube 33 is respectively connected to the branch pipe of the air intake main pipe 35. The air intake pipe is used to connect to the methanol gas outlet end 23 of the heat exchange device 2.

[0036] The gas outlet main pipe 36 includes a main pipe, a gas outlet pipe and a branch pipe. The gas outlets of each reaction tube 33 are respectively connected to the branch pipes of the gas outlet main pipe 36. The gas outlet pipe is used to connect to the hydrogen inlet end 24 of the heat exchange device 2.

[0037] The air inlet main pipes 35 and the air outlet main pipes 36 in the two groups of heating boxes 32 are respectively connected to the methanol gas outlet end 23 and the hydrogen gas inlet end 24 of the two groups of heat exchange devices 2.

[0038] Through this arrangement, the methanol gas is transmitted through the curved channel in the reaction tube 33 and can come into more complete contact with the cracking catalyst, which can make the cracking reaction of the methanol gas more complete, improve the methanol reaction rate, and improve the hydrogen production efficiency.

[0039] like Figure 5-7As shown, a hydrogen inlet 41 for inputting hydrogen is provided at the lower portion of the condensation separation tank 4, a hydrogen outlet 42 for outputting hydrogen is provided at the upper portion of the condensation separation tank 4, and a condensation medium input port 43 and a condensation medium output port 44 are provided on the side wall of the condensation separation tank 4. This arrangement allows the produced hydrogen to be cooled and the unreacted methanol gas therein to be liquefied and separated, thereby improving the purity of the produced hydrogen.

[0040] The methanol hydrogen production equipment of the utility model adds liquid methanol to two groups of methanol vaporization tanks from a main feed pipeline during production. The heating device in the methanol vaporization tank heats the liquid methanol to raise the temperature to 90° C., thereby vaporizing the liquid methanol. During this process, the temperature and pressure of the methanol gas in the two methanol vaporization tanks are balanced by a balance pipe connected between the two methanol vaporization tanks, so that the temperature and pressure of the output methanol gas are balanced and stable. The methanol gas output from the methanol vaporizer enters the heat exchanger. The high-temperature hydrogen output from the cracking unit is input into the hydrogen inlet of the heat exchanger. The heat carried by the high-temperature hydrogen is transferred to the methanol gas through the heat exchange pipe installed in the heat exchanger, reducing the temperature of the high-temperature hydrogen from 280°C to 130-150°C and increasing the temperature of the methanol gas from 90°C to 130-150°C. The heated methanol gas is transported to the cracking unit and distributed into each reaction tube through the inlet main pipe. Under the heating action of the heating box of the cracking unit, the temperature in the reaction tube continues to rise to 270-280°C. The methanol cracking reaction generates hydrogen. The generated hydrogen is transported to the heat exchanger through the outlet main pipe. The temperature of the hydrogen drops from 280°C to 130-150°C. The hydrogen is then transported to the condensation separation tank for further cooling and liquefaction and separation of unreacted methanol gas in the hydrogen. The hydrogen is output from the hydrogen outlet of the condensation separation tank.

[0041] The methanol hydrogen production equipment of the present invention can make the gas pressure and temperature of the methanol gas in the two groups of methanol gasification tanks more balanced and stable by arranging two groups of methanol gasification tanks, thereby improving the subsequent methanol cracking efficiency.

[0042] The methanol hydrogen production equipment of the present invention is provided with a heat exchange device, and utilizes the hydrogen prepared by methanol cracking to heat the methanol gas, so that the temperature of the 280°C hot hydrogen output by the cracking device drops rapidly, so as to facilitate the subsequent condensation and separation of the uncracked methanol in the hydrogen. At the same time, the heat of the hydrogen is transferred to the methanol gas through heat exchange, so that the temperature of the methanol gas delivered by the methanol vaporization tank rises from 90°C to 130-150°C, so that the methanol gas delivered to the cracking device can be heated to the cracking temperature of methanol more quickly, thereby improving the cracking rate of methanol and improving the production efficiency of hydrogen.

[0043] The methanol hydrogen production equipment of the present invention has multiple groups of reaction tubes arranged side by side in the cracking device, and the methanol gas in the reaction tubes is heated by a heating box. The methanol gas is split and enters each reaction tube for cracking reaction. This arrangement improves the cracking efficiency of the methanol gas.

[0044] 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 methanol hydrogen production device, characterized in that: It includes a methanol vaporizer, a heat exchanger, a cracking device and a condensation separation tank. There are two groups of methanol vaporizers and heat exchangers. A balance pipe for balancing the air pressure and temperature in the two groups of methanol vaporizers is provided between the two groups of methanol vaporizers. The discharge port of the methanol vaporizer is connected to the methanol gas inlet end of the corresponding heat exchanger through an air pipe. The methanol gas outlet end of the heat exchanger is connected to the main air inlet of the cracking device through an air pipe. The main air outlet end of the cracking device is connected to the hydrogen inlet end of the heat exchanger through an air pipe. The hydrogen outlet end of the heat exchanger is connected to the hydrogen inlet of the condensation separation tank through an air pipe. The condensation separation tank is provided with a hydrogen outlet for outputting hydrogen. The cracking device includes a heating box and multiple groups of reaction tubes arranged in the heating box. The reaction tubes are arranged side by side in the heating box. The inlet ends of the reaction tubes are connected to the air inlet main pipe, and the outlet ends of the reaction tubes are connected to the air outlet main pipe. The reaction tubes are filled with methanol cracking catalyst.

2. The methanol-to-hydrogen equipment according to claim 1, characterized in that: The methanol gasification tank includes a tank body, a feed port is provided at the lower part of the tank body, a discharge port is provided at the upper part of the tank body, a heating device is provided in the tank body, a main feed pipeline is connected between the feed ports of the two groups of methanol gasification tanks, and the discharge port is connected to the methanol gas inlet end of the corresponding heat exchange device through an air pipe; the balance pipe includes two groups, the two ends of one group of balance pipes are respectively connected to the middle part of the two groups of methanol gasification tanks, and the two ends of the other group of balance pipes are respectively connected to the top of the two groups of methanol gasification tanks.

3. The methanol-to-hydrogen equipment according to claim 1, characterized in that: A liquid level gauge installation pipe is provided on the upper portion of the methanol vaporization tank, and the liquid level gauge is connected to the side wall of the methanol vaporization tank through the liquid level gauge installation pipe.

4. The methanol-to-hydrogen equipment according to claim 1, characterized in that: The heat exchange device includes a cylindrical shell, a methanol gas inlet end and a hydrogen gas outlet end are provided at the lower part of the cylindrical shell, a methanol gas outlet end and a hydrogen gas inlet end are provided at the upper part of the cylindrical shell, and a heat exchange pipe for hydrogen and methanol gas is provided in the heat exchange device.

5. The methanol-to-hydrogen equipment according to claim 1, characterized in that: The cracking device includes a shell, and a heating box is arranged in the shell. There are two groups of heating boxes, both of which are electric heating boxes. The heating boxes are respectively provided with multiple groups of heating medium inlets and heating medium outlets, and several groups of reaction tubes are respectively arranged in the heating boxes.

6. The methanol-to-hydrogen equipment according to claim 1, characterized in that: Each group of reaction tubes includes four vertical tubes and three groups of connecting elbows. The vertical tubes are vertically arranged in the heating box at a set interval in the front-to-back direction. The three groups of connecting elbows are used to connect the four vertical tubes. The air inlet main pipe and the air outlet main pipe are both arranged at the top of the heating box. The air inlet main pipe is arranged on the side close to the air inlet of the reaction tube, and the air outlet main pipe is arranged on the side close to the air outlet of the reaction tube. The air inlet main pipe includes a main pipe, an air inlet pipe and a branch pipe. The air inlet of each reaction tube is respectively connected to the branch pipe of the air inlet main pipe. The air outlet main pipe includes a main pipe, an air outlet pipe and a branch pipe. The air outlet of each reaction tube is respectively connected to the branch pipe of the air outlet main pipe.

7. The methanol-to-hydrogen equipment according to claim 1, characterized in that: The upper and lower parts of the heating box are respectively provided with positioning mounting plates for supporting and positioning the reaction tubes. Positioning holes are respectively provided on the positioning mounting plates, and the reaction tubes pass through the positioning holes. The air inlet pipe and the air outlet pipe are both arranged on the upper positioning mounting plate, the air inlet pipe is arranged on the rear side of the positioning mounting plate, and the air outlet pipe is arranged on the front side of the positioning mounting plate.

8. The methanol-to-hydrogen equipment according to claim 1, characterized in that: The lower part of the condensation separation tank is provided with a hydrogen inlet for inputting hydrogen, the upper part of the condensation separation tank is provided with a hydrogen outlet for outputting hydrogen, and the side wall of the condensation separation tank is provided with a condensation medium input port and a condensation medium output port.

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