Methanol hydrogen production unit

Abstract

The present application provides a methanol hydrogen production device, including a reforming module, provided with a reforming chamber and a first heat conduction chamber for heating the reforming chamber; a purification module, provided with a purification chamber connected to the reforming chamber, and a second heat conduction chamber for heating the purification chamber, the purification module is used to purify the hydrogen-rich gas after the reforming reaction to obtain pure hydrogen; a heating module, including an air supply device, a mixing chamber, a catalytic reaction module and a heat release chamber; the air supply device is used to blow the mixture in the mixing chamber to the catalytic reaction module for catalytic heat release; the heat release chamber is arranged on the side of the catalytic reaction module away from the mixing chamber and is connected to the first heat conduction chamber and the second heat conduction chamber; the reforming module, the purification module and the heating module are detachably connected. The methanol hydrogen production device provided by the present application has a small size, a high degree of modularization, low energy consumption, and stable heat release, thereby being able to greatly improve the hydrogen production efficiency.

Description

Technical Field

[0001] The present application belongs to the technical field of methanol hydrogen production, and more specifically, relates to a methanol hydrogen production device. Background Art

[0002] With the popularization and development of new energy technologies, the development of hydrogen fuel cells has become more and more perfect, and the related methanol hydrogen production technology has also become increasingly mature.

[0003] In the methanol-to-hydrogen process, high-temperature reforming of methanol is the most critical step in the entire hydrogen production process. This step requires a stable high-temperature environment to allow methanol to stably react with the catalyst to generate hydrogen-rich gas.

[0004] In the related art, in order to create a high-temperature hydrogen production environment, the heating of the reforming chamber in the methanol hydrogen production equipment adopts combustion heating or electric heating.

[0005] In the combustion heating method, the heat source is relatively concentrated, and it is impossible to achieve uniform heating of all parts of the reforming chamber; at the same time, there is a situation where the fire source is extinguished during the hydrogen production process, which further leads to uneven heating and affects the purity of hydrogen production; in addition, the combustion equipment is generally integrated with the reforming equipment, the equipment has a high degree of integration and a low degree of modularization, which makes the methanol hydrogen production equipment inconvenient to disassemble and assemble and difficult to maintain.

[0006] Compared with combustion heating, electric heating equipment is smaller in size and easier to implement modular design. However, due to the need for continuous heating, it not only consumes more energy, but also places higher demands on the stability of the output power of the power equipment. When the battery power decreases, the power will inevitably decrease, resulting in uneven heating. Summary of the invention

[0007] The purpose of the embodiments of the present application is to provide a methanol hydrogen production device to solve the technical problems of uneven heating, high heating energy consumption and low modularization in the methanol reforming hydrogen production process in the prior art.

[0008] To achieve the above purpose, the technical solution adopted in this application is: to provide a methanol hydrogen production device, comprising:

[0009] A reforming module, provided with a reforming chamber and a first heat conduction chamber for heating the reforming chamber;

[0010] A purification module, provided with a purification chamber connected to the reforming chamber, and a second heat conduction chamber for heating the purification chamber, the purification module is used to purify the hydrogen-rich gas after the reforming reaction to obtain pure hydrogen;

[0011] The heating module comprises an air supply device, a mixing chamber, a catalytic reaction module and a heat release chamber; the air supply device is used to blow the mixture in the mixing chamber to the catalytic reaction module for catalytic heat release; the heat release chamber is arranged on a side of the catalytic reaction module away from the mixing chamber and is connected to the first heat conduction chamber and the second heat conduction chamber;

[0012] The reforming module, the purification module and the heating module are detachably connected.

[0013] Optionally, the reforming module and the purification module are both made of metal material, and are arranged against each other; the first heat conduction chamber and the reforming chamber are integrally formed; and heat conduction fins are arranged on the side walls of the first heat conduction chamber and the second heat conduction chamber.

[0014] Optionally, the reforming chamber includes a third flow channel and a fourth flow channel, and the third flow channel and the fourth flow channel are both bent on different side walls of the reforming module, and the third flow channel and the fourth flow channel are interconnected; the third flow channel is connected to the methanol supply pipe; the fourth flow channel is provided with a catalyst for reforming catalytic reaction, and the fourth flow channel is communicated with the purification chamber.

[0015] Optionally, two heating modules are arranged side by side; the heat release chamber of one of the heating modules is connected to the first heat conduction chamber, and the mixing chamber, the heat release chamber and the first heat conduction chamber are arranged sequentially in the same axial direction; the heat release chamber of the other heating module is connected to the second heat conduction chamber, and the mixing chamber, the heat release chamber and the second heat conduction chamber are arranged sequentially in the same axial direction.

[0016] Optionally, the exhaust pipe of the purification chamber is connected to the mixing chamber, so that the high-temperature exhaust gas of the purification chamber can flow back to the mixing chamber and be used to heat the mixture.

[0017] Optionally, the heating module further comprises a liquid inlet channel arranged around the mixing chamber, and a plurality of liquid outlet holes are arranged at intervals on the liquid inlet channel, the liquid outlet holes are connected to the mixing chamber, the liquid inlet channel is used to transport mist or liquid reaction liquid to the mixing chamber; the air supply device is used to transport air to the mixing chamber.

[0018] Optionally, the reaction liquid is in liquid form; the heating module further includes at least one electric heating rod, which is used to preheat any one or more of the air, the reaction liquid or the mixture in the heating module to heat the mixture and completely atomize it.

[0019] Optionally, the heating module also includes a heating channel, one end of which is connected to an external liquid supply pipe and the other end is connected to the mixing chamber; one of the electric heating rods is used to preheat the reaction liquid in the heating channel so that the reaction liquid is heated and atomized.

[0020] Optionally, the heating flow channel includes at least a first flow channel and a second flow channel; the first flow channel is connected to the external liquid supply pipe, and a number of interfering flow columns are arranged at intervals in the axial extension direction of the first flow channel; the second flow channel is bent and connected to the mixing chamber.

[0021] Optionally, at least one temperature sensor is provided in the heating module, and the temperature sensor is used to monitor the temperature of the mixing chamber or the heat release chamber.

[0022] The methanol hydrogen production device provided in this application has at least the following beneficial effects:

[0023] Heating, reforming and purification are divided into three separate modules, each with independent functions and detachable design. In this way, the methanol hydrogen production device has a high degree of modularity and can be easily replaced with different modules according to needs. It has a simple structure and is easy to maintain.

[0024] The heating module uses catalytic reaction heat release to provide heat for the reforming module and the purification module, and the air supply device blows the mixture in the mixing chamber into the catalytic reaction module for catalytic heat release. In this way, through catalytic reaction heat release, compared with the heating methods of combustion heating and electric heating, the equipment required for catalytic reaction heat release is smaller in size, the heating energy consumption is low, and the heat release is more stable, and the methanol reforming and purification heating can be performed evenly and stably. In summary, the methanol hydrogen production device of the present application has a small size and a high degree of modularization, is easy to maintain, has low energy consumption, and has stable heat release, thereby greatly improving the efficiency of hydrogen production. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0026] Figure 1 A three-dimensional diagram of a methanol hydrogen production device in some embodiments of the present application;

[0027] Figure 2 A three-dimensional diagram of a methanol hydrogen production device from another perspective in some embodiments of the present application;

[0028] Figure 3An exploded view of a methanol-to-hydrogen device in some other embodiments of the present application;

[0029] Figure 4 This is a cross-sectional view of a methanol hydrogen production device in some embodiments of the present application;

[0030] Figure 5 A three-dimensional diagram of a reforming module in some embodiments of the present application;

[0031] Figure 6 A three-dimensional diagram of a reorganization module from another perspective in some embodiments of the present application;

[0032] Figure 7 A three-dimensional diagram of a gas flow divider in some embodiments of the present application;

[0033] Figure 8 This is a three-dimensional diagram of the heating module after the air supply device is hidden in some embodiments of the present application;

[0034] Fig. 9 A three-dimensional diagram from another perspective of the heating module after the air supply device is hidden in some embodiments of the present application;

[0035] Fig.10 This is a stereoscopic diagram from another perspective of the methanol hydrogen production device in some embodiments of the present application.

[0036] Among them, the reference numerals in the figure are:

[0037] 100. Reorganization module;

[0038] 110, reforming chamber; 111, third flow channel; 112, fourth flow channel; 120, first heat conduction chamber; 130, methanol liquid supply pipe;

[0039] 200. Purification module;

[0040] 210, purification chamber; 211, exhaust gas exhaust pipe; 212, pure hydrogen exhaust pipe; 220, second heat transfer chamber;

[0041] 300. Heating module;

[0042] 310, air supply device; 311, blower; 312, gas diverter; 3121, guide head; 3122, baffle; 3123, diverter; 320, mixing chamber; 330, catalytic reaction module; 340, heat release chamber; 350, electric heating rod; 361, liquid outlet; 362, first flow channel; 3621, spoiler column; 363, second flow channel; 370, external liquid supply pipe. DETAILED DESCRIPTION

[0043] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0044] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0045] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0046] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0047] It should be noted that, in the present application, the reaction liquid for the catalytic exothermic reaction is taken as methanol liquid.

[0048] The exothermic reaction equation of methanol catalytic reaction is:

[0049] 2CH3OH+3O2----2CO2+4H2O, the reaction conditions are copper-zinc catalyst environment.

[0050] The reaction equation for methanol reforming to produce hydrogen is:

[0051] CH3OH+H2O----CO2+3H2, the reaction conditions are high temperature and copper-zinc catalyst or precious metal catalyst.

[0052] Please also read Figures 1 to 10 , the methanol hydrogen production device provided in the embodiment of the present application is now described.

[0053] refer to Figures 1 to 3 The methanol-to-hydrogen device comprises a reforming module 100 , a purification module 200 and a heating module 300 .

[0054] Specifically:

[0055] The reforming module 100 is provided with a reforming chamber 110 and a first heat conduction chamber 120 for heating the reforming chamber 110. The reforming chamber 110 is filled with a reforming catalyst. The methanol liquid undergoes a reforming reaction with the reforming catalyst under a high temperature environment to generate hydrogen-rich gas.

[0056] The purification module 200 is provided with a purification chamber 210 connected to the reforming chamber 110 and a second heat conduction chamber 220 for heating the purification chamber 210. The purification module 200 is used to purify the hydrogen-rich gas after the reforming reaction to obtain pure hydrogen.

[0057] It can be understood that the outside of the reforming module 100 and the purification module 200 are both coated with a thermal insulation layer.

[0058] The heating module 300 includes a shell, an air supply device 310 and a catalytic reaction module 330. The shell is hollow, and the air supply device 310 and the catalytic reaction module 330 are arranged in the shell. A mixing chamber 320 is formed between the air supply device 310 and the catalytic reaction module 330. A heat release chamber 340 is formed in the shell and located on one side of the mixing chamber 320 in the yard of the catalytic reaction module 330. The heat release chamber 340 is connected to the first heat conduction chamber 120 and the second heat conduction chamber 220. The shell is made of metal material, such as aluminum alloy. A liquid inlet for supplying mist reaction liquid to the mixing chamber 320 is provided on the side wall of the shell corresponding to the mixing chamber 320, and the air supply device 310 is provided on one side of the mixing chamber 320 opposite to the catalytic reaction module 330. It can be understood that the air supply device 310 can be a blower 311, and the blower 311 draws air into the mixing chamber 320 so that the air and the reaction liquid are fully mixed, so that the oxygen in the air reacts with the reaction liquid. At the same time, the blower 311 is also used to blow the mixed mixture into the catalytic reaction module 330 for catalytic exothermic reaction, and to blow the high-temperature gas generated by the catalytic exothermic reaction into the heat release chamber 340, and the high-temperature gas flows to the first heat conduction chamber 120 and the second heat conduction chamber 220, thereby heating the reforming chamber 110 and the purification chamber 210.

[0059] Specifically, the reaction liquid is methanol liquid. Thus, the raw materials used for the catalytic exothermic reaction and the methanol reforming purification are both methanol liquid, that is, the two can use the same raw material supply device. Therefore, the methanol reforming device has a higher degree of integration and a smaller size.

[0060] Furthermore, the catalytic reaction module 330 may be a honeycomb catalyst containing a copper-zinc catalyst. By providing the catalytic reaction module 330, taking advantage of its stable heat release and small size, the mixture is continuously and stably blown to the honeycomb catalyst by the blower 311, so that the heating module 300 can continuously and stably deliver heat to the first heat conduction chamber 120 and the second heat conduction chamber 220.

[0061] Furthermore, the reforming module 100, the purification module 200 and the heating module 300 are detachably connected, for example, by bolts. In this way, the modules are easy to assemble and disassemble. When the catalyst in the reforming chamber 110 or the catalytic reaction device in the heating module 300 needs to be replaced, the modules can be disassembled, so maintenance is convenient; and modules of different sizes can be replaced according to the needs of the use scenario, so as to adapt to various operating conditions.

[0062] In summary, the methanol hydrogen production device of the present application has a small size and a high degree of modularity, is easy to maintain, has low heating energy consumption, stable heating, and has a simple structure and is easy to maintain.

[0063] It can be understood that the reforming module 100 and the purification module 200 are both made of metal materials, for example, aluminum alloy and other metal materials. In this way, the reforming module 100 and the purification module 200 have better thermal conductivity and can quickly and effectively transfer heat to the reforming chamber 110 and the purification chamber 210, which is beneficial to improve the hydrogen production efficiency and reduce the energy consumption of the heating device.

[0064] For further reference, Figure 2 , the reforming module 100 and the purification module 200 are arranged against each other. In this way, the two are arranged against each other so that the heat between them can be transferred to each other. When the temperature of any one of the reforming module 100 and the purification module 200 is lower than that of the other, the heat can be transferred to the module with lower temperature, thereby reducing temperature fluctuations, which is conducive to the continuous and stable reforming and purification of methanol, so as to effectively ensure the purity and efficiency of hydrogen production.

[0065] refer to Figure 3 , Figure 5 and Figure 6, the first heat conduction chamber 120 and the reforming chamber 110 are integrally formed. Specifically, the reforming module 100 is a long column, the first heat conduction chamber 120 is arranged on one side of the column of the reforming module 100, and the reforming chamber 110 is arranged on the other side of the column of the reforming module 100. In this way, the heat obtained in the first heat conduction chamber 120 can be effectively transferred to the reforming chamber 110, thereby reducing heat loss and improving hydrogen production efficiency. In addition, since the blowing speed of the blower 311 is relatively fast, that is, the flow speed of the high-temperature gas in the first heat conduction chamber 120 and the second heat conduction chamber 220 is relatively fast, in order to improve the heat acquisition efficiency of the first heat conduction chamber 120 and the second heat conduction chamber 220, reference Figure 5 and Fig.10 Heat conducting fins are disposed on the side walls of the first heat conducting chamber 120 and the second heat conducting chamber 220 , so that the utilization rate of heat in the first heat conducting chamber 120 and the second heat conducting chamber 220 can be increased.

[0066] For further reference, Figure 3 , Figure 5 , Figure 6 and Fig.10 In some embodiments of the present application, the reforming chamber 110 includes a third flow channel 111 and a fourth flow channel 112, which are bent and arranged on different side walls of the reforming module 100, and the third flow channel 111 and the fourth flow channel 112 are connected to each other. The third flow channel 111 is connected to the methanol supply pipe 130; the fourth flow channel 112 is provided with a catalyst, and the fourth flow channel 112 is connected to the purification chamber 210.

[0067] In this way, since the first heat conduction chamber 120, the third flow channel 111 and the fourth flow channel 112 are integrally formed on the column of the reforming module 100, that is, the third flow channel 111 and the fourth flow channel 112 are heated by the first heat conduction chamber 120 simultaneously; and the reforming catalytic reaction of the methanol liquid is only carried out in the fourth flow channel 112, the third flow channel 111 is not the place for the reforming catalytic reaction, that is, the third flow channel 111 has a pre-heating function for the methanol liquid flowing into the fourth flow channel 112. More specifically, the width of the third flow channel 111 is much smaller than the width of the fourth flow channel 112. Thus, when the methanol liquid enters the third flow channel 111 from the methanol inlet, the methanol liquid is fully heated and atomized in the third flow channel 111 during the process of flowing toward the fourth flow channel 112. When the methanol liquid reaches the fourth flow channel 112, the methanol liquid has been heated to a temperature close to that required for the reforming catalytic reaction. Thus, it can be ensured that the methanol liquid has been fully heated before the reforming catalytic reaction occurs, which is beneficial for the reforming catalytic reaction to be fully and effectively carried out, thereby improving the hydrogen production efficiency.

[0068] For further reference, Figure 5 and Figure 6The third flow channel 111 and the fourth flow channel 112 are both bent. In this way, the lengths of the third flow channel 111 and the fourth flow channel 112 can be effectively increased. Specifically, for the third flow channel 111, the preheating length of the methanol liquid can be increased so that the methanol liquid can be fully heated before entering the fourth flow channel 112; and for the fourth flow channel 112, increasing its length can increase the contact area between the methanol liquid and the reforming catalyst, thereby increasing the output of the hydrogen-rich gas.

[0069] Understandably, reference Figure 2 and Figure 3 In some embodiments of the present application, two heating modules 300 are arranged side by side; the heat release chamber 340 of one heating module 300 is connected to the first heat conduction chamber 120, and the heat release chamber 340 of the other heating module 300 is connected to the second heat conduction chamber 220.

[0070] In this way, the first heat conduction chamber 120 and the second heat conduction chamber 220 each have a separate heating module 300 to provide heat for them, so that the heat supply is more sufficient, and the heating module 300 heats the reforming module 100 and the purification module 200 more stably, which is beneficial to improving the efficiency of methanol reforming and hydrogen-rich gas purification.

[0071] Specifically, the mixing chamber 320 and the heat release chamber 340 in one of the heating modules 300, and the first heat conduction chamber 120 in the reforming module 100 are located in the same axial direction; at the same time, the mixing chamber 320 and the heat release chamber 340 in another heating module 300, and the second heat conduction chamber 220 in the purification module 200 are located in the same axial direction, that is, the first heat conduction chamber 120 and the second heat conduction chamber 220 are arranged side by side and the openings at the same end thereof are facing the heat release chamber 340, and the heat release chamber 340 and the mixing chamber 320 in the heating module 300 are on the same axis.

[0072] In this way, after the mixture in the mixing chamber 320 is blown by the blower 311 into the honeycomb catalyst for catalytic exothermic reaction, the high-temperature gas generated by the reaction can smoothly enter the first heat conduction chamber 120 or the second heat conduction chamber 220 through the heat release chamber 340, and the flow direction of the high-temperature gas will not undergo a significant change. Therefore, the high-temperature gas can quickly flow through the first heat conduction chamber 120 or the second heat conduction chamber 220 before the heat is lost, and the heat is transferred to the reforming chamber 110 and the purification chamber 210 in time, which is beneficial to improve the thermal efficiency of the methanol reforming device.

[0073] For further reference, Figure 1 and Figure 2In some embodiments of the present application, the exhaust pipe 211 of the purification chamber 210 is connected to the mixing chamber 320, so that the high-temperature exhaust gas generated by the reaction in the purification chamber 210 can flow back to the mixing chamber 320, thereby providing auxiliary heating for the mixture in the mixing chamber 320.

[0074] In this way, after the hydrogen-rich gas is purified in the purification chamber 210, the pure hydrogen is discharged to the external hydrogen collecting device through the pure hydrogen exhaust pipe 212 of the purification chamber 210. The exhaust gas generated during the purification of the hydrogen-rich gas has a relatively high temperature. Therefore, the high-temperature exhaust gas of the purification chamber 210 is utilized. In this way, on the one hand, the temperature of the mixture to be reacted can be stabilized, which is conducive to the stable and efficient catalytic exothermic reaction. On the other hand, if the methanol reforming device is provided with an electric heating rod 350 (see the embodiment below for details), then during the entire methanol reforming purification process, the power requirement for the electric heating rod 350 is relatively low, which can improve the thermal efficiency of the methanol reforming device and reduce energy consumption.

[0075] It can be understood that in some embodiments of the present application, in order to improve the mixing uniformity of air and methanol liquid in the mixing chamber 320, so that the mixture and the catalyst can fully react and the heating efficiency of the heating module 300 is improved, the methanol liquid inlet of the air supply device 310 and the mixing chamber 320 are arranged as follows.

[0076] refer to Figures 2 to 4 ,as well as Figure 7 In terms of the air supply device 310, the air supply device 310 includes a blower 311 and a gas diverter 312. The gas diverter 312 is arranged on one side of the gas-liquid mixing chamber 320 and is connected to the air supply channel of the blower 311, so as to disperse and divert the air. Furthermore, the gas diverter 312 includes a guide head 3121 arranged directly opposite to the air supply channel of the blower 311, a baffle 3122 arranged at the bottom of the guide head 3121, and a diverter sheet 3123 arranged around the guide head 3121 and arranged in a divergent shape; each diverter sheet 3123 is extended from the side wall of the gas diverter 312 toward the guide head 3121 but is not connected to each other, and the end of each diverter sheet 3123 is connected to the baffle 3122.

[0077] In this way, when the air blown by the blower 311 is guided by the guide head 3121 and collides with the side walls of each diverter plate 3123, the air flow after the collision changes its flow direction and collides with the sealing plate, and then changes its flow direction again to collide with the baffle plate 3122. In this process, the air blown continuously by the blower 311 is mixed with the air that has changed its flow direction many times in the gas diverter 312, and finally flows into the mixing chamber 320. At this time, the air flowing into the mixing chamber 320 has been fully dispersed and diverted, thereby increasing the contact area between the air and the methanol liquid to ensure that the two can be fully mixed.

[0078] refer to Figure 3 , Figure 4 and Figure 8 In terms of the mixing chamber 320, a liquid inlet channel is provided in the heating module 300 and around the mixing chamber 320. Specifically, the liquid inlet channel is provided on the side wall of the shell, and a plurality of liquid outlet holes 361 are provided at intervals on the liquid inlet channel. The liquid outlet holes 361 are connected to the mixing chamber 320. The liquid inlet channel is used to transport the reaction liquid in a mist or liquid form to the mixing chamber 320. In this way, when the methanol liquid is transported to the mixing chamber 320, the methanol liquid in a mist form can be evenly sprayed in the mixing chamber 320, so as to be fully mixed with the air.

[0079] Understandably, reference Figure 2 and Figure 3 In some embodiments of the present application, an electric heating rod 350 is provided in the heating module 300, which is used to heat the methanol liquid, air or a mixture of the two in the heating module 300. In this way, the methanol liquid can be quickly heated and atomized, eliminating the need to configure atomization equipment such as a high-pressure atomization device in the methanol reforming device to reduce the volume of the methanol reforming device. The temperature of the mixture can also be increased, so that the catalytic exothermic reaction proceeds more rapidly, thereby improving the heat release efficiency.

[0080] It is understood that the electric heating rod 350 can atomize the methanol liquid and make the mixture have a certain initial temperature (for example, 100° C.). The electric heating rod 350 can heat only the external liquid supply pipe 370; it can also heat the mixing chamber 320; or it can heat the air blown by the blower 311.

[0081] It can be understood that when the electric heating rod 350 is used to heat the air blown by the blower 311, the gas diverter 312 is made of aluminum alloy, and the electric heating rod 350 is arranged in the gas diverter 312. In this way, after the electric heating rod 350 heats the gas diverter 312, when the air flows through the gas diverter 312, the heat on the gas diverter 312 can be fully transferred to the air, thereby achieving heating of the air.

[0082] Thus, since the electric heating rod 350 is small in size, fast in starting speed, high in heating efficiency, and can be inserted into the side wall of the shell, it can heat the air, methanol liquid or mixture inside the shell.

[0083] Further, in order to facilitate the heating of the methanol solution, refer to Figure 3 , Figure 8 and Fig. 9A heating channel is also provided on the side wall of the shell, one end of the heating channel is connected to the external liquid supply pipe 370, and the other end is connected to the liquid inlet channel; one of the electric heating rods 350 is used to preheat the methanol liquid in the heating channel so that the methanol liquid is heated and atomized.

[0084] Specifically, the electric heating rod 350 is arranged in the side wall of the shell. Since the shell is made of metal material, the shell has good thermal conductivity. When the electric heating rod 350 is started, it can not only efficiently heat the heating flow channel in the side wall of the shell, but also transfer heat to the inside of the shell, thereby also heating the mixing chamber 320 and the catalytic reaction module 330, so as to further improve the catalytic reaction rate of the methanol liquid.

[0085] In this way, after the methanol liquid is heated and atomized in the heating flow channel, the methanol liquid is in a mist form, so that it can be fully mixed with the air after entering the mixing chamber 320. Compared with only preheating the air, the air transfers heat to the methanol liquid, so that the temperature and mixing uniformity of the air and methanol liquid can be further improved, thereby providing favorable conditions for the catalytic exothermic reaction.

[0086] For heated flow channels, refer to Figure 8 and Fig. 9 Specifically, the heating channel includes at least a first channel 362 and a second channel 363; the first channel 362 is connected to the external liquid supply pipe 370, and a number of interfering flow columns 3621 are arranged at intervals in the axial extension direction of the first channel 362; the second channel 363 is bent and connected to the liquid delivery channel.

[0087] By arranging the spoiler column 3621 in the axial extension direction of the first flow channel 362, when the methanol liquid flows into the first flow channel 362 from the external liquid supply pipe 370, the flow direction of the methanol liquid is disrupted to form a turbulent flow under the flow disturbance effect of the spoiler column 3621, so that the methanol liquid can fill the first flow channel 362. Further, a plurality of spoiler columns 3621 are arranged at intervals, so that the disrupting effect on the methanol liquid can be further improved.

[0088] The second flow channel 363 is arranged behind the first flow channel 362, and the second flow channel 363 is arranged in a curved manner, so that the space of the side wall of the shell can be fully utilized to extend the length of the second flow channel 363 as much as possible. Since one of the electric heating rods 350 is arranged in the shell, the second flow channel 363 is arranged in this way, and the methanol liquid can completely fill the second flow channel 363 after being fully dispersed and disturbed by the first flow channel 362, so that the heat on the side wall of the shell can be fully transferred to the methanol liquid to heat it, thereby improving the heating efficiency and making the methanol liquid fully atomized.

[0089] It is understandable that in some embodiments of the present application, at least one temperature sensor (not shown in the figure) is provided in the heating module 300 , and the temperature sensor is used to monitor any one or more temperatures in the mixing chamber 320 or the heat release chamber 340 .

[0090] Specifically, only one temperature sensor may be provided, which is disposed in the heat release chamber 340, so as to monitor whether the temperature of the high-temperature gas generated by the catalytic reaction meets the temperature requirements of the reforming reaction and the purification reaction; or, two temperature sensors may be provided, one of which is disposed in the heat release chamber 340 and the other is disposed in the mixing chamber 320, so as to monitor the initial temperature of the mixture, thereby controlling the heating temperature of the gas diverter 312 and the heating channel by the electric heating rod 350; or, three temperature sensors may be provided, which are respectively disposed in the heat release chamber 340, the gas diverter 312 and the heating channel, so as to detect the temperature of the air, methanol liquid and the high-temperature gas generated by the catalytic reaction, so as to realize precise temperature adjustment, thereby improving the reaction efficiency of methanol reforming and purification.

[0091] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A methanol hydrogen production device, characterized in that: include: A reforming module, provided with a reforming chamber and a first heat conduction chamber for heating the reforming chamber; A purification module, provided with a purification chamber connected to the reforming chamber, and a second heat conduction chamber for heating the purification chamber, the purification module is used to purify the hydrogen-rich gas after the reforming reaction to obtain pure hydrogen; The heating module comprises an air supply device, a mixing chamber, a catalytic reaction module and a heat release chamber; the air supply device is used to blow the mixture in the mixing chamber to the catalytic reaction module for catalytic heat release, and the catalytic reaction module is a honeycomb catalyst containing a copper-zinc catalyst; the mixing chamber is used to fully mix the mixture, the mixture is air and a reaction liquid, and the reaction liquid is a methanol liquid, and the heat release chamber is arranged on a side of the catalytic reaction module away from the mixing chamber and is connected to the first heat conduction chamber and the second heat conduction chamber; The reforming module, the purification module and the heating module are detachably connected; The heating module further comprises a liquid inlet channel arranged around the mixing chamber, and a plurality of liquid outlet holes are arranged at intervals on the liquid inlet channel, the liquid outlet holes are connected to the mixing chamber, and the liquid inlet channel is used to transport the reaction liquid in a mist or liquid form to the mixing chamber; The air delivery device is used to deliver air to the mixing chamber; The heating modules are arranged in two parallel rows; The heat release chamber of one of the heating modules is connected to the first heat conduction chamber, and the mixing chamber, the heat release chamber and the first heat conduction chamber are arranged in sequence in the same axial direction; The heat release chamber of the other heating module is communicated with the second heat conduction chamber, and the mixing chamber, the heat release chamber and the second heat conduction chamber are arranged in sequence in the same axial direction.

2. The methanol-to-hydrogen device according to claim 1, characterized in that: The reforming module and the purification module are both made of metal material, and are arranged against each other; the first heat conduction chamber and the reforming chamber are integrally formed; and heat conduction fins are arranged on the side walls of the first heat conduction chamber and the second heat conduction chamber.

3. The methanol-to-hydrogen device according to claim 2, characterized in that: The reforming chamber comprises a third flow channel and a fourth flow channel, the third flow channel and the fourth flow channel are both bent and arranged on different side walls of the reforming module, and the third flow channel and the fourth flow channel are connected to each other; The third flow channel is connected to the methanol liquid supply pipe; The fourth flow channel is provided with a catalyst for reforming catalytic reaction, and the fourth flow channel is communicated with the purification chamber.

4. The methanol-to-hydrogen device according to any one of claims 1 to 3, characterized in that: The exhaust gas pipe of the purification chamber is communicated with the mixing chamber, so that the high-temperature exhaust gas of the purification chamber can flow back to the mixing chamber and be used to heat the mixture.

5. The methanol-to-hydrogen device according to claim 1, characterized in that: The reaction liquid is in liquid form; the heating module further comprises at least one electric heating rod, which is used to preheat any one or more of the air, the reaction liquid or the mixture in the heating module so as to heat the mixture and completely atomize it.

6. The methanol-to-hydrogen device according to claim 5, characterized in that: The heating module also includes a heating channel, one end of which is connected to an external liquid supply pipe and the other end is connected to the mixing chamber; one of the electric heating rods is used to preheat the reaction liquid in the heating channel so that the reaction liquid is heated and atomized.

7. The methanol-to-hydrogen device according to claim 6, characterized in that: The heating flow channel at least includes a first flow channel and a second flow channel; the first flow channel is connected to the external liquid supply pipe, and a plurality of interfering flow columns are arranged at intervals in the axial extension direction of the first flow channel; the second flow channel is bent and connected to the mixing chamber.

8. The methanol-to-hydrogen device according to claim 1, characterized in that: At least one temperature sensor is arranged in the heating module, and the temperature sensor is used to monitor the temperature of the mixing chamber or the heat release chamber.

Images