Methanol hydrogen production generator set

Abstract

According to the methanol-to-hydrogen generator set, a power generation assembly is arranged on the inner wall of the top end of a rack, and the power generation assembly comprises a proton exchange membrane fuel cell; the liquid supply assembly is arranged on the inner wall of the bottom end of the rack and located below the power generation assembly, an interlayer is arranged in the liquid supply assembly, the proton exchange membrane fuel cell is communicated with the interlayer, and the preheating assembly is arranged between the power generation assembly and the liquid supply assembly and is communicated with the proton exchange membrane fuel cell and the liquid supply assembly. A refrigeration sheet assembly is arranged on the side, close to the proton exchange membrane fuel cell, of the preheating assembly, the cold end of the refrigeration sheet assembly is close to one side of the proton exchange membrane fuel cell, and the hot end of the refrigeration sheet assembly is arranged on the surface of one side of the preheating assembly and used for conducting auxiliary heating on methanol in the preheating assembly while refrigerating the proton exchange membrane fuel cell. A heating piece is arranged in the preheating assembly and used for heating methyl alcohol and conducting auxiliary heating on the interlayer at the same time.

Description

Technical Field

[0001] The present application relates to the technical field of power generation, and in particular to a methanol-to-hydrogen generator set. Background Art

[0002] With the development of clean energy, miniaturized and efficient energy conversion devices have become a research hotspot. Although the existing hydrogen fuel cells and traditional internal combustion engine power generation technologies can achieve a certain degree of energy conversion, the former is limited by the safety and cost of hydrogen storage, and the latter is gradually being eliminated due to serious environmental pollution. Methanol, as a liquid fuel, has a high energy density and is easy to store and transport. Therefore, methanol reforming hydrogen production technology has gradually attracted attention.

[0003] Currently, common methanol-to-hydrogen power generation technologies mainly include high-temperature steam reforming, partial oxidation and catalytic cracking. Among them, high-temperature steam reforming is a technology that uses methanol and water vapor to undergo a reforming reaction through a catalyst at high temperature to produce hydrogen. The reaction temperature is relatively high (usually greater than 200°C), the catalyst activity is high, and the hydrogen purity is good. The produced hydrogen then undergoes an electrochemical reaction through a proton exchange membrane fuel cell to generate high-temperature water vapor while generating and storing electrical energy.

[0004] In the existing methanol to hydrogen production process using steam reforming, it takes a long time to heat the methanol to a suitable reaction temperature, so it takes a long time to start the generator set and the energy consumption is high. Summary of the invention

[0005] The present application provides a methanol-to-hydrogen generator set, which can solve the problem of a long time for heating methanol and high energy consumption in the existing methanol-to-hydrogen generator set.

[0006] The technical solution of the present application is as follows: A methanol hydrogen production generator set, comprising: A frame, wherein a power generation assembly is disposed on the inner wall of the top end of the frame, and the power generation assembly includes a proton exchange membrane fuel cell; A methanol liquid supply component is provided inside, the liquid supply component is arranged on the inner wall of the bottom end of the frame and is located below the power generation component, and is used to pump methanol into the power generation component for power generation. An interlayer is provided inside the liquid supply component, and the proton exchange membrane fuel cell is connected to the interlayer, and is used to pass water vapor generated by the proton exchange membrane fuel cell into the interlayer and preheat the methanol; A preheating component, wherein the preheating component is arranged between the power generation component and the liquid supply component, and is respectively connected to the proton exchange membrane fuel cell and the liquid supply component. A refrigeration plate component is provided on the side of the preheating component close to the proton exchange membrane fuel cell, the cold end of the refrigeration plate component is close to the side of the proton exchange membrane fuel cell, and the hot end of the refrigeration plate component is arranged on the surface of one side of the preheating component, and is used for cooling the proton exchange membrane fuel cell while auxiliary heating the methanol in the preheating component. A heating element is provided inside the preheating component, which is used for heating the methanol and auxiliary heating the interlayer at the same time.

[0007] By adopting the above scheme, the preheating component is arranged between the liquid supply component and the power generation component, so that the cold end and the hot end of the refrigeration plate component can be used to synchronously cool the power generation component and preheat the methanol, so that when the methanol is heated to the reaction temperature inside the preheating component, it can have a certain temperature, thereby reducing the energy consumption of the heating element. In addition, by passing the high-temperature water vapor discharged by the proton exchange membrane fuel cell into the interlayer of the liquid supply component and heating it in a water bath, the methanol inside the liquid supply component has a certain temperature.

[0008] In one embodiment of the present application, the power generation component further includes: A methanol hydrogen reformer, used for producing hydrogen from methanol, the methanol hydrogen reformer is mounted on the inner wall of the top end of the rack and is located on one side of the proton exchange membrane fuel cell; A purifier component, one end of which is connected to the methanol-to-hydrogen reformer, and the other end of which is connected to the proton exchange membrane fuel cell, is used to filter the hydrogen and pass it into the proton exchange membrane fuel cell.

[0009] By adopting the above scheme, the heated methanol vapor enters the methanol hydrogen reformer, and undergoes a catalytic reaction of the catalyst inside the methanol hydrogen reformer to form hydrogen, carbon dioxide and a trace amount of carbon monoxide, which is then purified by the purifier component to obtain pure hydrogen to ensure the efficiency of the proton exchange membrane fuel cell in converting electrical energy.

[0010] In one embodiment of the present application, the purifier assembly comprises: Purifier body; An air intake pipe, one end of which is sleeved with a sliding joint, one end of which is threadedly connected to one end of the purifier body, and the other end of which is connected to the methanol-to-hydrogen reformer; An air outlet pipe, one end of which is threadedly connected to the other end of the purifier body, and the other end of which is communicated with the proton exchange membrane fuel cell.

[0011] By adopting the above solution, an air inlet pipe with a sliding joint is provided, and one end of the air inlet pipe and the air outlet pipe are threadedly connected to the purifier body, so that the purifier body can be replaced more quickly and conveniently when it needs to be replaced.

[0012] In one embodiment of the present application, the liquid supply assembly includes: An outer box, one side of which is provided with a drain pipe and is connected to the proton exchange membrane fuel cell through the drain pipe, and one side of the bottom end of the outer box is provided with a drain pipe connected to the outer box; An inner box, the inner box is arranged inside the outer box, the interlayer is formed between the inner wall of the outer box and the outer wall of the inner box, and the inner box is filled with the methanol; A liquid pump is arranged on the frame and located at one side of the outer box. The water inlet of the liquid pump is connected to the inner box through a liquid inlet pipe, and the water outlet of the liquid pump is connected to the preheating component through a liquid outlet pipe.

[0013] By adopting the above scheme, methanol is arranged in the inner box, and an outer box is simultaneously arranged outside the inner box, so that the device can use the high-temperature water vapor generated by the proton exchange membrane combustion cell when preparing electric energy, pass it into the interlayer, and perform water bath heating on the methanol inside the inner box, so that the methanol has a certain temperature before entering the preheating component, thereby reducing the energy consumption of the heating element during heating.

[0014] In one embodiment of the present application, the preheating component includes: A preheating plate with a hollow interior, wherein a serpentine tube is provided inside the preheating plate, one end of the serpentine tube is connected to the liquid outlet pipe, and the other end is connected to the methanol hydrogen reformer, and a heat-conducting medium is provided inside the preheating plate; The heating elements are provided in plurality and are fixedly assembled inside the preheating tray.

[0015] By adopting the above scheme, a preheating plate is provided with a heat-conducting medium inside the preheating plate, and the methanol inside the serpentine tube is heated by a heating element until it is heated to a preset reaction temperature. The methanol is heated more evenly and quickly by using the heat-conducting medium.

[0016] In one embodiment of the present application, the preheating tray comprises: A disk body, wherein an opening is formed on a side of the disk body close to the liquid supply assembly; A metal heat conducting plate, one side of which is embedded in the opening, and the other side of which is in contact with the top surface of the outer box.

[0017] By adopting the above solution, a metal heat conducting plate is arranged below the preheating plate. When heating the methanol reaching inside the preheating component, the high temperature inside the preheating plate can be transferred to the top of the outer box through the metal heat conducting plate, so that part of the redundant heat is transferred to the interlayer inside the outer box to assist in heating the methanol inside the inner box.

[0018] In one embodiment of the present application, the thermoelectric cooler assembly includes: A plurality of thermoelectric coolers, and the plurality of thermoelectric coolers are arranged at intervals in a rectangular array on the upper surface of the main body of the disk; A heat insulation pad, the heat insulation pad is assembled on the top surface of the main body of the disk, and the heat insulation pad is provided with a plurality of empty slots arranged at intervals in a rectangular array, and the plurality of thermoelectric coolers are correspondingly arranged in the plurality of empty slots one by one.

[0019] By adopting the above solution, a plurality of thermoelectric coolers arranged in a rectangular array are provided, and the thermoelectric coolers are embedded in the heat insulation pad. The heat insulation pad can ensure that the heat of the preheating component will not be transferred to the proton exchange membrane fuel cell, and at the same time, the thermoelectric coolers can quickly and efficiently cool the proton exchange membrane fuel cell, and at the same time transfer the heat to the preheating component for auxiliary heating.

[0020] In one embodiment of the present application, the inner box is an annular member, and an annular cavity is provided inside the inner box, and the water inlet of the liquid pump is communicated with the cavity through a liquid inlet pipe.

[0021] By adopting the above solution, the box body is set as an annular member with a cavity inside, so as to increase the heat exchange area between the inner box and the high-temperature water vapor, and further improve the heat exchange efficiency of the inner box.

[0022] In one embodiment of the present application, the metal heat conducting plate is arranged at the opening, the side surface of the metal heat conducting plate is slidably connected with the main body of the disk in the vertical direction, and the bottom end of the metal heat conducting plate is fixedly connected with the top of the outer box.

[0023] By adopting the above solution, when heating the heat conducting medium, by slidably connecting the metal heat conducting plate with the main body of the disk, the heat conducting medium expands after being heated and drives the main body of the disk to rise a certain distance on the metal heat conducting plate, shortening the distance between the thermoelectric cooler and the proton exchange membrane fuel cell, so that the cooling effect is better.

[0024] In one embodiment of the present application, the depth h of the empty slot and the thickness d of the thermoelectric cooler satisfy: d < h, and the top surface of the heat insulation pad is in contact with the proton exchange membrane fuel cell.

[0025] By adopting the above scheme, the depth of the empty groove and the thickness of the cooling plate are limited, so that under normal conditions, that is, when the cooling plate is not heated by the preheating component, there is a certain gap between the cooling plate and the proton exchange membrane fuel cell, thereby avoiding long-term contact between the proton exchange membrane fuel cell and the cooling plate, and damage to the cooling plate during vibration.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: 1. By setting a refrigeration plate assembly, setting the refrigeration plate assembly on the upper surface of the preheating assembly, and setting a proton exchange membrane fuel cell above the preheating assembly, the refrigeration plate assembly can utilize its heat absorption at one end and heat release at the other end to absorb the heat of the proton exchange membrane fuel cell, thereby cooling the battery temperature and transferring the heat to the preheating assembly to assist the preheating assembly in heating methanol, thereby saving energy consumption of the heating component.

[0027] 2. By setting up a preheating component and a liquid supply component below the preheating component, when the preheating component heats methanol, the temperature of the preheating component itself can be effectively transferred to the liquid supply component to heat the high-temperature water vapor produced by the proton exchange membrane fuel cell, thereby achieving heat transfer to the methanol inside the inner box and assisting in preheating.

[0028] 3. By setting high-temperature steam, the high-temperature steam produced by the proton exchange membrane is passed into the interlayer to achieve the purpose of water bath heating of the methanol inside the inner box, so that the methanol in the inner box can have a certain temperature before passing into the preheating component, so that the heating element consumes less electricity to heat the methanol to the reaction temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a front view of a methanol-to-hydrogen generator set provided in the first embodiment of the present application; Figure 2 It is a top cross-sectional view of a preheating assembly of a methanol-to-hydrogen generator set provided in the first embodiment of the present application; Figure 3 This is a front cross-sectional view of a liquid supply assembly of a methanol-to-hydrogen generator set provided in the first embodiment of the present application; Figure 4 This is a front view of a purifier assembly of a methanol-to-hydrogen generator set provided in the first embodiment of the present application; Figure 5 This is a front view of a liquid supply assembly of a methanol-to-hydrogen generator set provided in the second embodiment of the present application; Figure 6 This is a front view of a thermal insulation pad for a methanol-to-hydrogen generator set provided in the third embodiment of the present application; Figure 7It is a front cross-sectional view of a thermal insulation pad of a methanol-to-hydrogen generator set provided in the third embodiment of the present application.

[0030] Explanation of the reference numerals: 1. frame; 2. power generation assembly; 21. proton exchange membrane fuel cell; 22. methanol to hydrogen reformer; 23. purifier assembly; 231. purifier body; 232. air inlet pipe; 2321. sliding joint; 233. air outlet pipe; 3. liquid supply assembly; 31. interlayer; 32. methanol; 33. outer box; 331. drain pipe; 332. liquid discharge pipe; 34. inner box; 35. liquid pump; 351. liquid inlet pipe; 352. liquid outlet pipe; 4. preheating assembly; 41. refrigeration plate assembly; 411. refrigeration plate; 412. thermal insulation pad; 4121. empty slot; 42. heating element; 43. preheating disk; 431. heat transfer medium; 432. disk body; 4321. opening; 433. metal heat transfer plate; 44. serpentine tube. DETAILED DESCRIPTION

[0031] The following is combined with Figure 1-7 A methanol-to-hydrogen generator set provided in the present application is further described in detail.

[0032] Example 1 A methanol-to-hydrogen generator set provided in an embodiment of the present application includes: a frame 1, a liquid supply component 3 and a preheating component 4.

[0033] See also Figure 1 A power generation assembly 2 is provided on the inner wall at the top end of the frame 1, and the power generation assembly 2 includes a proton exchange membrane fuel cell 21. The liquid supply assembly 3 is provided on the inner wall at the bottom end of the frame 1 and is located below the power generation assembly 2, and is used to pump methanol 32 into the power generation assembly 2 for power generation; See also Figure 1 and Figure 3 The liquid supply component 3 is provided with an interlayer 31 inside, and the proton exchange membrane fuel cell 21 is connected to the interlayer 31, which is used to pass the water vapor generated by the proton exchange membrane fuel cell 21 into the interlayer 31 and preheat the methanol 32. The preheating component 4 is arranged between the power generation component 2 and the liquid supply component 3, and is respectively connected to the proton exchange membrane fuel cell 21 and the liquid supply component 3; See also Figure 1 , Figure 2 and Figure 3A cooling plate assembly 41 is provided on a side of the preheating component 4 close to the proton exchange membrane fuel cell 21, and a cold end of the cooling plate assembly 41 is close to a side of the proton exchange membrane fuel cell 21. A hot end of the cooling plate assembly 41 is provided on a side surface of the preheating component 4, and is used to cool the proton exchange membrane fuel cell 21 while auxiliary heating the methanol 32 in the preheating component 4. A heating element 42 is provided inside the preheating component 4, and is used to heat the methanol 32 and auxiliary heating the interlayer 31 at the same time. By providing the cooling plate assembly 41 and utilizing the principle that one end of the cooling plate assembly 41 absorbs heat and the other end releases heat, the positional relationship between the proton exchange membrane fuel cell 21, the preheating component 4 and the liquid supply component 3 is arranged, so that the cooling plate assembly 41 can reduce the operating temperature of the proton exchange membrane fuel cell 21, and at the same time, the methanol 32 solution can have a certain temperature before entering the preheating component 4, thereby reducing the energy consumption of the preheating component 4.

[0034] The heating element 42 may be an electric heating rod.

[0035] In this embodiment, a controller is also included, and the preheating component 4, the power generation component 2 and the liquid supply component 3 are all electrically connected through the controller.

[0036] See also Figure 1 The power generation component 2 also includes: a methanol hydrogen reformer 22 and a purifier component 23. The methanol hydrogen reformer 22 is used to produce hydrogen from methanol 32. The methanol hydrogen reformer 22 is assembled on the inner wall of the top of the frame 1 and is located on one side of the proton exchange membrane fuel cell 21. One end of the purifier component 23 is connected to the methanol hydrogen reformer 22, and the other end is connected to the proton exchange membrane fuel cell 21. It is used to filter the hydrogen and pass it into the proton exchange membrane fuel cell 21. By setting the purifier component 23, the hydrogen generated inside the methanol hydrogen reformer 22 can be filtered and purified by the purifier component 23, and impurities are removed, so that the purity is higher.

[0037] In this embodiment, the purifier component 23 may be a combination of activated carbon and molecular sieves, and the purifier component 23 includes a filter housing, and activated carbon and molecular sieves are sequentially arranged inside the filter housing along the air inlet direction, and the activated carbon and molecular sieves can be used to absorb and filter carbon monoxide and carbon dioxide in hydrogen; The methanol-to-hydrogen reformer 22 may be a tubular reactor.

[0038] See also Figure 4The purifier assembly 23 includes: a purifier body 231, an air inlet pipe 232 and an air outlet pipe 233, one end of the air inlet pipe 232 is externally sleeved with a sliding joint 2321, one end of the sliding joint 2321 is threadedly connected to one end of the purifier body 231, the other end of the air inlet pipe 232 is connected to the methanol hydrogen reformer 22, one end of the air outlet pipe 233 is threadedly connected to the other end of the purifier body 231, and the other end of the air outlet pipe 233 is connected to the proton exchange membrane fuel cell 21 is connected, and by providing an air inlet pipe 232 with a sliding joint 2321, when the purifier body 231 needs to be removed, the purifier body 231 can be rotated so that the other end of the purifier body 231 is away from the air outlet pipe 233, and the sliding joint 2321 is driven to rotate on the air inlet pipe 232 at the same time. When the other end of the purifier body 231 is disengaged from the threaded engagement with the air outlet pipe 233, the sliding joint 2321 is held by hand and removed from the sliding joint 2321 at one end of the purifier body 231.

[0039] See also Figure 3 The liquid supply assembly 3 includes: an outer box 33, an inner box 34 and a liquid pump 35. A drainage pipe 331 is provided on one side of the outer box 33, and the outer box 33 is connected to the proton exchange membrane fuel cell 21 through the drainage pipe 331. A drainage pipe 332 is provided on one side of the bottom end of the outer box 33, which is connected to the outer box 33. The inner box 34 is arranged inside the outer box 33, and the interlayer 31 is formed between the inner wall of the outer box 33 and the outer wall of the inner box 34. The inner box 34 is filled with the methanol 32. The liquid pump 35 is arranged on the inner wall of the outer box 33. The liquid supply assembly 3 is provided with an interlayer 31, and the proton exchange membrane fuel cell 21 is connected with the interlayer 31, so that the high-temperature water vapor in the proton exchange membrane fuel cell 21 can pass into the interlayer 31, thereby achieving the purpose of water bath heating of the methanol 32 in the inner box 34.

[0040] See also Figure 2 and Figure 3The preheating assembly 4 includes: a preheating disk 43 with a hollow interior and a heating element 42. A serpentine tube 44 is provided inside the preheating disk 43. One end of the serpentine tube 44 is connected to the liquid outlet pipe 352, and the other end is connected to the methanol hydrogen reformer 22. A heat-conducting medium 431 is provided inside the preheating disk 43. A plurality of heating elements 42 are provided and fixedly assembled inside the preheating disk 43. By using the preheating disk 43 and the heating element 42 and arranging the serpentine tube 44, the time when the methanol 32 stays inside the preheating disk 43 is increased, thereby increasing the effective heating time of the methanol 32. The heat-conducting medium 431 is heated by the heating rod, so that the heating of the methanol 32 is more comprehensive and sufficient.

[0041] In this embodiment, the heat conducting medium 431 may be water.

[0042] See also Figure 3 The preheating disk 43 includes: a disk body 432 and a metal heat conductive plate 433. The disk body 432 is provided with an opening 4321 on one side close to the liquid supply component 3. One side of the metal heat conductive plate 433 is embedded in the opening 4321, and the other side is in contact with the top surface of the outer box 33. By arranging the metal heat conductive plate 433, when the preheating component 4 heats the methanol 32, the metal heat conductive plate 433 can transfer the redundant heat of the internal part to the outer box 33 below through the metal heat conductive plate 433, and then can heat the water vapor in the inner interlayer 31 of the outer box 33, so as to assist in preheating the methanol 32 in the inner box 34.

[0043] Please continue reading Figure 3 The refrigeration plate assembly 41 includes: a refrigeration plate 411 and a thermal insulation pad 412, wherein a plurality of refrigeration plates 411 are provided, wherein the plurality of refrigeration plates 411 are arranged in a rectangular array at intervals on the upper surface of the disk body 432, and the thermal insulation pad 412 is assembled on the top surface of the disk body 432, wherein the thermal insulation pad 412 is provided with a plurality of empty grooves 4121 arranged in a rectangular row at intervals, and the plurality of refrigeration plates 411 are arranged in the plurality of empty grooves 4121 in a one-to-one correspondence, and by utilizing the refrigeration plates 411 and the thermal insulation pad 412, through the plurality of refrigeration plates 411 arranged in a rectangular array, when the refrigeration plates 411 cool the proton exchange membrane fuel cell 21, the cooling is more uniform and the effect is better, and at the same time, the thermal insulation pad 412 can reduce the heat generated by the disk body 432 during heating and transferred back to the proton exchange membrane fuel cell 21, thereby improving the safety of electricity use.

[0044] In this embodiment, the thermal insulation pad 412 may be a sheet-like component made of rock wool.

[0045] Example 2 The basic structure of Example 2 is the same as that of Example 1, except that: Please refer to Figure 5 wherein the inner box 34 is an annular member, an annular cavity is formed inside the inner box 34, and the water inlet of the liquid pump 35 is communicated with the cavity through a liquid inlet pipe 351. By optimizing the shape of the inner box 34, when the inner box 34 is inside the outer box 33, the heat exchange area with high-temperature water vapor is wider and the heat exchange efficiency is higher.

[0046] Embodiment 3 Embodiment 3 has the same basic structure as Embodiment 1, and the difference lies in that: Please refer to Figure 6 wherein the metal heat conduction plate 433 is arranged at the opening 4321, the side surface of the metal heat conduction plate 433 is slidably connected with the disc body 432 in the vertical direction, and the bottom end of the metal heat conduction plate 433 is fixedly connected with the top end of the outer box 33. By arranging the metal heat conduction plate 433 to be slidably connected at the opening 4321, when the heat conduction medium 431 inside the disc body 432 is heated, the expansion generated after the heat conduction medium 431 is heated can push the disc body 432 upward, so that it can drive the refrigerating sheet 411 to be close to the lower surface of the proton exchange membrane fuel cell 21, strengthening the cooling effect on the proton exchange membrane fuel cell 21.

[0047] Please refer to Figure 7 wherein the depth h of the empty groove 4121 and the thickness d of the refrigerating sheet 411 satisfy: d < h, and the top surface of the heat insulation pad 412 is in contact with the proton exchange membrane fuel cell 21. By limiting the thickness of the refrigerating sheet 411 and the depth of the empty groove 4121, when the disc body 432 rises to抵触 the lower surface of the proton exchange membrane fuel cell 21, the heat insulation pad 412 can first抵住 the proton exchange membrane fuel cell 21 and bear the acting force generated during extrusion to protect the refrigerating sheet 411.

[0048] In summary, when it is necessary to use the device for methanol hydrogen production and power generation, first, the liquid pump 35 pumps the methanol 32 inside the inner box 34 to the preheating disc 43 through the liquid inlet pipe 351 and the liquid outlet pipe 352. At this time, the heating element 42 heats the methanol 32, and at the same time, the refrigerating sheet 411 works. The cold end can efficiently cool the proton exchange membrane fuel cell 21, the hot end releases heat, and the heat is导出 to the preheating disc 43 through the heat conduction metal plate, thereby assisting in heating the methanol 32 in the preheating disc 43 and shortening the heating time; The heated methanol 32 enters the methanol hydrogen reformer 22 to react, and the generated hydrogen is filtered by the purifier component 23 and enters the proton exchange membrane fuel cell 21 to realize the electrochemical reaction of hydrogen and oxygen, thereby storing electrical energy. The high-temperature water vapor generated by the reaction is then passed into the interlayer 31 to preheat the methanol 32 in the inner box 34 in a water bath, so that the methanol 32 has a certain temperature before entering the preheating plate 43, so as to reduce the energy consumption required for the heating element 42 to heat the methanol 32.

[0049] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A methanol-to-hydrogen generator set, characterized in that: include: A frame (1), wherein a power generation assembly (2) is provided on the inner wall of the top end of the frame (1), and the power generation assembly (2) comprises a proton exchange membrane fuel cell (21); A liquid supply component (3) containing methanol (32) is provided inside the liquid supply component (3), the liquid supply component (3) is arranged on the inner wall of the bottom end of the frame (1) and is located below the power generation component (2), and is used to pump the methanol (32) into the power generation component (2) for generating electricity; an interlayer (31) is provided inside the liquid supply component (3), and the proton exchange membrane fuel cell (21) is connected to the interlayer (31), and is used to pass water vapor generated by the proton exchange membrane fuel cell (21) into the interlayer (31), and preheat the methanol (32); A preheating component (4) is provided between the power generation component (2) and the liquid supply component (3), and is respectively connected to the proton exchange membrane fuel cell (21) and the liquid supply component (3); a refrigeration plate component (41) is provided on a side of the preheating component (4) close to the proton exchange membrane fuel cell (21); a cold end of the refrigeration plate component (41) is close to a side of the proton exchange membrane fuel cell (21); a hot end of the refrigeration plate component (41) is provided on a surface of one side of the preheating component (4), and is used for cooling the proton exchange membrane fuel cell (21) while auxiliary heating the methanol (32) in the preheating component (4); a heating element (42) is provided inside the preheating component (4), and is used for heating the methanol (32) and auxiliary heating the interlayer (31) at the same time.

2. A methanol-to-hydrogen generator set according to claim 1, characterized in that: The power generation component (2) also includes: A methanol hydrogen production reformer (22) for producing hydrogen from methanol (32), wherein the methanol hydrogen production reformer (22) is mounted on the inner wall of the top end of the frame (1) and is located on one side of the proton exchange membrane fuel cell (21); A purifier component (23), one end of which is connected to the methanol-to-hydrogen reformer (22), and the other end of which is connected to the proton exchange membrane fuel cell (21), and is used to filter hydrogen and pass it into the proton exchange membrane fuel cell (21).

3. A methanol-to-hydrogen generator set according to claim 2, characterized in that: The purifier assembly (23) comprises: Purifier body (231); An air intake pipe (232), wherein a sliding joint (2321) is sleeved on one end of the air intake pipe (232), one end of the sliding joint (2321) is threadedly connected to one end of the purifier body (231), and the other end of the air intake pipe (232) is connected to the methanol-to-hydrogen reformer (22); An air outlet pipe (233), one end of which is threadedly connected to the other end of the purifier body (231), and the other end of which is in communication with the proton exchange membrane fuel cell (21).

4. A methanol-to-hydrogen generator set according to claim 1, characterized in that: The liquid supply component (3) comprises: An outer box (33), wherein a drainage pipe (331) is provided on one side of the outer box (33) and is connected to the proton exchange membrane fuel cell (21) through the drainage pipe (331); Inner box (34), the inner box (34) is arranged inside the outer box (33), a sandwich layer (31) is formed between the inner wall of the outer box (33) and the outer wall of the inner box (34), methanol (32) is filled inside the inner box (34), and a drain pipe (332) communicating with itself is arranged on one side of the bottom end of the outer box (33); Liquid pump (35), the liquid pump (35) is arranged on the frame (1) and is located on one side of the outer box (33). The water inlet of the liquid pump (35) is communicated with the inner box (34) through a liquid inlet pipe (351), and the water outlet of the liquid pump (35) is communicated with the preheating assembly (4) through a liquid outlet pipe (352).

5. A methanol-to-hydrogen generator set according to claim 4, characterized in that: The preheating assembly (4) includes: A preheating plate (43) with a hollow interior, a serpentine tube (44) is arranged inside the preheating plate (43), one end of the serpentine tube (44) is communicated with the liquid outlet pipe (352), the other end is communicated with the methanol steam reformer (22), and a heat-conducting medium (431) is arranged inside the preheating plate (43); A plurality of heating elements (42) are provided and fixedly assembled inside the preheating plate (43).

6. A methanol-to-hydrogen generator set according to claim 5, characterized in that: The preheating plate (43) includes: A plate body main body (432), an opening (4321) is formed on one side of the plate body main body (432) close to the liquid supply assembly (3); A metal heat-conducting plate (433), one side of the metal heat-conducting plate (433) is embedded at the opening (4321), and the other side is in contact with the top surface of the outer box (33).

7. A methanol-to-hydrogen generator set according to claim 6, characterized in that: The Peltier module assembly (41) includes: A plurality of Peltier elements (411), the plurality of Peltier elements (411) are arranged at intervals in a rectangular array on the upper surface of the plate body main body (432); A heat insulation pad (412), the heat insulation pad (412) is assembled on the top surface of the plate body main body (432), the heat insulation pad (412) is provided with a plurality of empty slots (4121) arranged at intervals in a rectangular array, and the plurality of Peltier elements (411) are correspondingly arranged in the plurality of empty slots (4121).

8. A methanol-to-hydrogen generator set according to claim 4, characterized in that: The inner box (34) is an annular member, an annular cavity is formed inside the inner box (34), and the water inlet of the liquid pump (35) is communicated with the cavity through a liquid inlet pipe (351).

9. A methanol-to-hydrogen generator set according to claim 7, characterized in that: The metal heat-conducting plate (433) is arranged at the opening (4321), the side surface of the metal heat-conducting plate (433) is slidably connected with the plate body main body (432) in the vertical direction, and the bottom end of the metal heat-conducting plate (433) is fixedly connected with the top end of the outer box (33).

10. A methanol-to-hydrogen generator set according to claim 9, characterized in that: The depth h of the empty slot (4121) and the thickness d of the Peltier element (411) satisfy: d < h, and the top surface of the heat insulation pad (412) is in contact with the proton exchange membrane fuel cell (21).

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