A single-sided heating methanol reforming hydrogen production reactor

Abstract

The present application relates to the technical field of hydrogen production by methanol reforming, and specifically discloses a single-side heating methanol reforming hydrogen production reactor, which comprises a reforming chamber and a burner, and the reforming chamber comprises a reforming chamber box, a first heat conduction plate is arranged in the reforming chamber box, the first heat conduction plate divides the reforming chamber box into a reforming gas cavity and a lower cavity, a surface of the first heat conduction plate facing the lower cavity is provided with a second heat conduction plate, the second heat conduction plate divides the lower cavity into a heat conduction medium flow channel and an evaporation flow channel, one side of the reforming chamber box is provided with a reforming methanol inlet pipe in communication with the evaporation flow channel, a through hole in communication with the evaporation flow channel and the reforming gas cavity is arranged on the first heat conduction plate, the through hole is arranged at one end of the evaporation flow channel away from the reforming methanol inlet pipe, and the reforming chamber box is further provided with a reforming gas outlet pipe in communication with the reforming gas cavity at one end close to the reforming methanol inlet pipe. The present application can improve the space utilization and thermal efficiency of the reforming hydrogen production reactor while realizing miniaturization.

Description

Technical Field

[0001] This invention relates to the field of methanol reforming for hydrogen production technology, and in particular to a single-sided heated methanol reforming reactor for hydrogen production. Background Technology

[0002] When fuel cell systems use methanol reforming to produce hydrogen-rich gas to meet power generation needs, the size of the fuel cell system also needs further adjustment and optimization due to the upgrading and popularization of mobile fuel cells. This places higher structural requirements on the methanol reforming hydrogen production reactor.

[0003] To ensure miniaturization and cost control of fuel cell systems, the hydrogen-rich gas from the methanol reforming hydrogen production reactor typically enters the fuel cell directly after its temperature is adjusted via a heat exchanger. To guarantee the fuel cell's voltage and lifespan, the composition of the hydrogen-rich gas mixture (H2, CO, CO2, etc.) entering the fuel cell is subject to strict requirements. To ensure the gas composition produced by the methanol reforming hydrogen production reactor meets system requirements, the conversion rate of methanol vapor must be guaranteed. However, improving the methanol vapor conversion rate usually involves increasing the amount of catalyst, which often increases the volume of the reforming hydrogen production reactor, making miniaturization difficult and increasing costs, thus failing to meet demand. Furthermore, since the methanol reforming reaction is endothermic, the hydrogen production process requires a continuous heat source. To improve the overall power generation efficiency of the methanol fuel cell, the reformer must have a very good thermal management structure. Summary of the Invention

[0004] The technical problem to be solved by this invention is: how to achieve stable control of the temperature of the reforming hydrogen production reactor through structural design, improve the conversion rate of methanol vapor, and at the same time improve the space utilization and thermal efficiency of the reforming hydrogen production reactor, thereby achieving miniaturization and cost reduction.

[0005] To address the aforementioned technical problems, this invention provides a single-sided heated methanol reforming hydrogen production reactor, comprising:

[0006] A reforming chamber includes a reforming chamber housing. A first heat-conducting plate is provided inside the reforming chamber housing, dividing the reforming chamber housing into a reformed gas chamber and a lower chamber. A second heat-conducting plate is provided on the surface of the first heat-conducting plate facing the lower chamber, dividing the lower chamber into a heat-conducting medium channel and an evaporation channel. A reformed methanol inlet pipe communicating with the evaporation channel is provided on one side of the reforming chamber housing. A through hole is provided on the first heat-conducting plate communicating with the evaporation channel and the reformed gas chamber, located at the end of the evaporation channel away from the reformed methanol inlet pipe. A reformed gas outlet pipe communicating with the reformed gas chamber is also provided at the end of the reforming chamber housing near the reformed methanol inlet pipe; and a burner is provided to heat the heat-conducting medium and then send it into the heat-conducting medium channel.

[0007] More preferably, it also includes a plurality of baffles, which are arranged in parallel within the reforming gas chamber and connected to the first heat-conducting plate. The plurality of baffles divide the reforming gas chamber into a plurality of independent small chambers. Adjacent baffles are staggered with notches so that adjacent independent small chambers are connected in series to form a Z-shaped flow channel.

[0008] More preferably, it also includes a first heat-conducting unit, which is disposed in each of the small chambers and parallel to the baffle. The first heat-conducting unit is connected to the first heat-conducting plate, and there is a gap between the first heat-conducting unit and the inner wall of the reforming chamber.

[0009] More preferably, the heat-conducting medium channel is provided with a matrix arrangement of second heat-conducting units.

[0010] More preferably, the matrix-arranged second heat-conducting units form an air-retaining area near the through-hole.

[0011] More preferably, a third heat-conducting unit is provided in the evaporation channel.

[0012] More preferably, the first heat-conducting unit, the second heat-conducting unit, and the third heat-conducting unit are any one of heat-conducting fins or heat-conducting pillars.

[0013] More preferably, the reforming chamber housing is provided with a heat transfer medium inlet at one end away from the reformed methanol inlet pipe, and the burner is located at the end of the reforming chamber housing. The burner heats the heat transfer medium and then sends it into the heat transfer medium flow channel through the heat transfer medium inlet.

[0014] More preferably, the reforming chamber housing is provided with a heat-conducting medium outlet pipe at one end near the reforming methanol inlet pipe, and the heat-conducting medium outlet pipe is connected to the heat-conducting medium flow channel.

[0015] More preferably, the reformed gas outlet pipe is provided with a mesh-like catalyst baffle.

[0016] Compared with the prior art, the single-sided heated methanol reforming hydrogen production reactor of this invention has the following advantages:

[0017] This invention divides the reforming chamber into a reforming gas chamber, a heat-conducting medium channel, and an evaporation channel by installing a first and second heat-conducting plate inside the chamber. During the reforming process, the burner heats the heat-conducting medium and sends it into the heat-conducting medium channel. Room-temperature methanol-water enters the evaporation channel through the reforming methanol inlet pipe. The methanol-water is heated and atomized in the evaporation channel to form high-temperature methanol-water vapor. The high-temperature methanol-water vapor is then fully atomized through through-holes and enters the reforming gas chamber, where it diffuses evenly into the catalyst. Under the action of the catalyst, a reforming reaction occurs. The heat exchange between the reforming gas chamber and the heat-conducting medium can meet the large amount of heat required for the methanol reforming reaction. After fully reacting with the catalyst, the reformed gas flows out from the outlet pipe. After the temperature of the reformed gas is adjusted by the heat exchanger, it can directly enter the fuel cell for power generation. The present invention has a compact structure, a simple heat exchange channel, and stable and controllable temperature. While keeping the length of the reforming chamber unchanged, it extends the heat exchange path and improves the space utilization rate. This ensures that the methanol water vapor has sufficient heat to fully react with the catalyst, guaranteeing the conversion rate of methanol water vapor. It ensures that the reformed gas composition does not need to be purified and can directly meet the needs of the fuel cell. While improving the space utilization and thermal efficiency of the reforming hydrogen production reactor, it can also achieve miniaturization, reduce equipment costs, and is suitable for various mobile fuel cell application scenarios. Attached Figure Description

[0018] Figure 1 This is a perspective view of a single-sided heated methanol reforming hydrogen production reactor according to the present invention.

[0019] Figure 2 This is a top view of a single-sided heated methanol reforming hydrogen production reactor according to the present invention.

[0020] Figure 3 This is the present invention. Figure 2 A sectional view of section AA in the middle.

[0021] Figure 4 This is a side view of a single-sided heated methanol reforming hydrogen production reactor according to the present invention.

[0022] Figure 5 This is a schematic diagram of the internal structure of the reforming chamber described in this invention.

[0023] Figure 6 This is a schematic diagram of the internal structure of the reforming chamber described in this invention from another perspective.

[0024] Figure 7 This is a bottom view of a single-sided heated methanol reforming hydrogen production reactor according to the present invention.

[0025] Figure 8 This is a top view of the reforming chamber described in this invention.

[0026] In the picture:

[0027] 100. Reforming chamber; 101. Reforming chamber housing; 102. Reformed gas outlet pipe; 1021. Catalyst baffle; 103. Heat transfer medium outlet pipe; 104. Reformed methanol inlet pipe; 105. First heat-conducting plate; 106. Reformed gas chamber; 107. Baffle; 108. Notch; 109. First heat-conducting unit; 110. Heat transfer medium inlet; 111. Second heat-conducting plate; 112. Heat transfer medium flow channel; 113. Evaporation flow channel; 114. Second heat-conducting unit; 115. Third heat-conducting unit; 116. Voided area; 117. Through hole;

[0028] 200. Burner;

[0029] The dashed lines with arrows in the diagram represent: L1, the flow trajectory of reformed methanol in the evaporation channel;

[0030] L2, the flow trajectory of the heat-conducting medium; L3, the flow trajectory of reformed methanol in the reforming gas chamber. Detailed Implementation

[0031] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and are not intended to limit the scope of the invention.

[0032] In the description of this invention, it should be understood that the terms "upper," "lower," "inner," "outer," "top," "bottom," "between," "near," "far from," "one side / end," "the other side / end," "parallel," "vertical," "end," "sidewall," "opposite," "horizontal," and "edge," etc., used to indicate orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0033] The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first," "second," or "third" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0034] Furthermore, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0035] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0036] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0037] like Figure 1 This embodiment provides a single-sided heated methanol reforming hydrogen production reactor, including a reforming chamber 100 and a burner 200.

[0038] In a specific implementation, refer to Figures 1-6The reforming chamber 100 includes a reforming chamber housing 101. A first heat-conducting plate 105 is provided inside the reforming chamber housing 101, dividing the reforming chamber housing 101 into a reformed gas chamber 106 and a lower chamber. A second heat-conducting plate 111 is provided on the surface of the first heat-conducting plate 105 facing the lower chamber, dividing the lower chamber into a heat-conducting medium flow channel 112 and an evaporation flow channel 113. One side of the reforming chamber housing 101 is provided with a connection to the evaporation flow channel 113. The reformed methanol inlet pipe 104 has a through hole 117 on the first heat-conducting plate 105 that connects the evaporation channel 113 and the reformed gas chamber 106. The through hole 117 is located at the end of the evaporation channel 113 away from the reformed methanol inlet pipe 104. The reforming chamber body 101 is also provided with a reformed gas outlet pipe 102 that connects to the reformed gas chamber 106 at the end near the reformed methanol inlet pipe 104. The burner 200 is used to heat the heat-conducting medium and send it into the heat-conducting medium channel 112.

[0039] In the above embodiment, by setting a first heat-conducting plate 105 and a second heat-conducting plate 111 inside the reforming chamber 101, the interior of the reforming chamber 101 is divided into a reformed gas chamber 106, a heat-conducting medium flow channel 112, and an evaporation flow channel 113. This ensures efficient heat transfer while making full use of space. During the reforming process, the burner 200 heats the heat-conducting medium and sends it into the heat-conducting medium flow channel 112. Room temperature methanol-water enters the evaporation flow channel 113 through the reformed methanol inlet pipe 104. The methanol is heated and atomized in the evaporation flow channel 113 to form high-temperature methanol-water vapor. The high-temperature methanol-water vapor is then fully atomized through the through hole 117 and enters the reformed gas chamber 106 to diffuse evenly. In the catalyst, a reforming reaction occurs under the action of the catalyst. The heat exchange between the reforming gas chamber 106 and the heat-conducting medium can meet the large amount of heat required for the methanol reforming reaction. After the reformed gas reacts fully with the catalyst, it flows out from the reformed gas outlet pipe 102. After the temperature of the reformed gas is adjusted by the heat exchanger, it can directly enter the fuel cell for power generation. The present invention has a compact structure, a simple heat exchange channel, and a stable and controllable temperature. While keeping the length of the reforming chamber box 101 unchanged, the heat exchange path is extended, so that the methanol water vapor has enough heat to fully react with the catalyst, ensuring the conversion rate of methanol water vapor. It can achieve miniaturization while improving the space utilization and thermal efficiency of the reforming hydrogen production reactor.

[0040] In other embodiments, the through holes 117 are uniformly arrayed small circular holes. These small circular holes not only serve as conductors but also as flow restrictors. They ensure that the methanol water, after being atomized into high-temperature methanol water vapor, can be fully atomized when it enters the reforming gas chamber 106 through the flow restrictor. It should be noted that the high-temperature methanol water vapor enters the reforming gas chamber 106 through the flow restrictor, is fully atomized, and diffuses evenly into the catalyst. Under the action of the catalyst, a reforming reaction occurs. The reforming reaction requires a large amount of heat absorption. At this time, the reforming gas chamber 106 exchanges a large amount of heat with the heat-conducting medium to ensure the heat required for the reforming reaction.

[0041] In some embodiments, a heat transfer medium outlet pipe 103 is provided at one end of the reforming chamber housing 101 near the methanol reforming inlet pipe 104. The heat transfer medium outlet pipe 103 is connected to the heat transfer medium flow channel 112 so that the heat transfer medium can be discharged from the reformer after heat exchange and cooling in the heat transfer medium flow channel 112. The heat exchange flow channel is simple, ensuring that the temperature of the reforming chamber is stable and controllable.

[0042] In some embodiments, multiple baffles 107 are also included. The multiple baffles 107 are arranged in parallel within the reformed gas chamber 106 and are connected to the first heat-conducting plate 105. The multiple baffles 107 divide the reformed gas chamber 106 into multiple independent small chambers. The adjacent two baffles 107 are staggered with notches 108 so that the adjacent two independent small chambers are connected in series to form a Z-shaped flow channel. In this way, by setting baffles 107 and staggering notches 108 on the baffles 107, the multiple independent small chambers form a Z-shaped flow channel, thereby extending the reaction path of the reformed gas and the catalyst. After the reformed gas chamber 106 exchanges heat with the heat-conducting medium, the reformed gas fully reacts with the catalyst through the Z-shaped flow channel and is finally discharged through the reformed gas outlet pipe 102. After the temperature of the reformed gas is adjusted by the heat exchanger, it can directly enter the fuel cell to react and generate electricity. The Z-shaped flow channel design improves the space utilization of the reforming chamber box 101.

[0043] In some embodiments, a first heat-conducting unit 109 is also included. The first heat-conducting unit 109 is disposed in each small chamber and parallel to the baffle 107. The first heat-conducting unit 109 is connected to the first heat-conducting plate 105. There is a gap between the first heat-conducting unit 109 and the inner side wall of the reforming chamber box 101. By setting the first heat-conducting unit 109, the contact area between the heat-conducting medium and the catalyst can be increased, thereby improving the heat transfer efficiency and enabling the reformed gas to fully react with the catalyst through the Z-shaped flow channel.

[0044] In the above embodiments, the arrangement of the baffle 107 and the first heat-conducting unit 109 can also prevent the catalyst from sinking and causing cavities during the reforming process, effectively avoid the problem of incomplete reaction between methanol water vapor and the catalyst, and ensure that the catalyst in the entire reforming gas chamber 106 can be heated quickly and evenly.

[0045] In other embodiments, the baffle 107 can also serve as the heat conduction unit 109.

[0046] In some embodiments, a heat transfer medium inlet 110 is provided at the end of the reforming chamber housing 101 away from the reformed methanol inlet pipe 104. A burner 200 is located at the end of the reforming chamber housing 101. The burner 200 heats the heat transfer medium and then sends it into the heat transfer medium flow channel 112 through the heat transfer medium inlet 110. The function of the burner 200 is to provide sufficient heat to the methanol reforming hydrogen production reactor, ensuring that the methanol vapor has enough heat to fully react with the catalyst, thus ensuring that the reformed gas components directly meet the needs of the fuel cell without purification.

[0047] In other embodiments, temperature sensors can be arranged on the side wall of the reforming chamber 101 to monitor the temperature of each chamber and each inlet and outlet in real time, effectively improving the control of thermal efficiency.

[0048] In some embodiments, to further improve the heat exchange efficiency between the catalyst layer and the heat-conducting medium, a matrix of second heat-conducting units 114 are provided in the heat-conducting medium flow channel 112 along the flow direction of the heat-conducting medium. That is, the second heat-conducting units 114 are parallel to the second heat-conducting plate 111. The cooperation between the second heat-conducting units 114 and the second heat-conducting plate 111 can improve the heat transfer efficiency, thereby improving the heat exchange efficiency between the catalyst layer and the heat-conducting medium and ensuring the uniformity of heat in the heat-conducting flow channel.

[0049] In other embodiments, the matrix-arranged second heat-conducting units 114 form an air-retaining region 116 near the through hole 117. By setting the air-retaining region 116, the heat transfer area between the heat-conducting medium and the reforming gas chamber 106 at this location is reduced, ensuring that sufficient heat can be transferred to the evaporation channel 113 via the second heat-conducting plate 111. This allows the high-temperature methanol water vapor at this location to be fully atomized and enter the reforming gas chamber 106 through the through hole 117, and then evenly diffuse into the catalyst layer to achieve a catalytic reaction.

[0050] In the above embodiment, the through hole 117 is provided at one end of the reforming chamber housing 101, while the reforming gas outlet pipe 102 and the reforming methanol inlet pipe 104 are provided at the other end of the reforming chamber housing 101. Under the premise of ensuring that the length of the reforming chamber housing 101 remains unchanged, the reaction path between the reforming gas and the catalyst is extended, ensuring efficient heat transfer and full catalysis.

[0051] In some embodiments, to further improve the heat exchange efficiency between methanol-water and the heat transfer medium, a third heat transfer unit 115 parallel to the second heat transfer plate 111 is provided in the evaporation channel 113. The heat of the heat transfer medium can be quickly transferred to the methanol-water in the evaporation channel 113 through the second heat transfer plate 111 and the third heat transfer unit 115, thereby improving the heat transfer efficiency and allowing it to be fully heated and atomized to form high-temperature methanol-water vapor, ensuring that the methanol-water vapor enters the reforming chamber 100 in a gaseous state.

[0052] In the above embodiments, the first heat-conducting unit 109, the second heat-conducting unit 114 and the third heat-conducting unit 115 are any one of heat-conducting fins or heat-conducting columns; the heat exchange between the heat-conducting medium flow channel 112 and the reforming gas chamber 106 or the evaporation flow channel 113 can be adjusted by adjusting the number, size and other parameters of the heat-conducting fins or heat-conducting columns.

[0053] In some embodiments, a mesh-like catalyst baffle 1021 is provided on the reformed gas outlet pipe 102 to provide a certain back pressure, so that the reformed gas and the catalyst can be in full contact in the reformed gas chamber 106, so that the reformed gas flowing out through the reformed gas outlet pipe 102 can completely undergo catalytic reaction, so as to ensure that the reformed gas can directly enter the fuel cell for reaction and power generation after the temperature is adjusted by the heat exchanger.

[0054] In other examples, the burner 200 can use heat transfer mediums such as heat transfer oil or high-temperature air as a heat source. The burner 200 can be a catalytic burner, a flame burner, or other heat transfer oil-introduced heating device. High-temperature air can be generated by a flame burner or a catalytic burner; in this embodiment, a catalytic burner is preferred.

[0055] In some examples, the reforming chamber 100 can be manufactured by methods such as die casting or machining and assembled into a whole by welding.

[0056] In some examples, to improve the heat exchange of the heat transfer medium, the components of the reforming chamber 100 are preferably made of aluminum or aluminum alloy; in other embodiments, other heat transfer materials, such as iron alloys, stainless steel, etc., may also be used.

[0057] In some examples, to avoid heat waste caused by heat exchange between the outer wall of the reforming chamber 100 and the outside environment during the heat exchange process, the entire outer wall of the reforming chamber 100 is wrapped with a heat insulation layer. This can not only prevent the high temperature during the reformer reaction from having an adverse effect on the surrounding components, but also effectively improve the heat utilization rate of the reformer.

[0058] The working process of this invention is as follows: Figures 1-8As shown, during the reforming process, the burner 200 heats the heat transfer medium and then sends it into the heat transfer medium channel 112 through the heat transfer medium inlet 110 (the flow trajectory of the heat transfer medium in the heat transfer medium channel is as follows). Figure 7 (As shown by the dashed arrow L2), part of the heat from the heat-conducting medium is transferred to the first heat-conducting unit 109 and the baffle 107 through the second heat-conducting unit 114 and the first heat-conducting plate 105, causing the catalyst in the reformed gas chamber 106 to heat up. Another part of the heat from the heat-conducting medium is transferred to the third heat-conducting unit 115 through the second heat-conducting plate 111 and the first heat-conducting plate 105. When room-temperature methanol-water enters the evaporation channel 113 through the reformed methanol inlet pipe 104 (the flow trajectory of reformed methanol in the evaporation channel is as shown in the image),... Figure 7 (As shown by the dashed arrow L1), methanol-water is heated and atomized in the evaporation channel 113 to form high-temperature methanol-water vapor. This high-temperature methanol-water vapor then passes through the through-hole 117 for flow restriction and full atomization before entering the reforming gas chamber 106 and uniformly diffusing into the catalyst. After passing through the zigzag flow channel, it undergoes a complete reforming reaction with the catalyst (the flow trajectory of reformed methanol in the reforming gas chamber is shown in the image). Figure 8 As shown by the dashed arrow L3, the reformed gas and catalyst react fully and then flow out from the reformed gas outlet pipe 102. Since the reformed gas outlet pipe 102 is equipped with a mesh catalyst baffle 1021, a certain back pressure is provided, so that the reformed gas and catalyst can fully contact each other in the reformed gas chamber 106. Therefore, it can be ensured that the reformed gas flowing out through the reformed gas outlet pipe 102 can completely undergo catalytic reaction, so that the reformed gas can directly enter the fuel cell to generate electricity after the temperature is adjusted by the heat exchanger.

[0059] In summary, this invention provides a single-sided heated methanol reforming hydrogen production reactor. The reforming chamber 101 is divided into a reforming gas chamber 106, a heat-conducting medium channel 112, and an evaporation channel 113 by a first heat-conducting plate 105 and a second heat-conducting plate 111 within the reforming chamber housing 101. During the reforming process, the burner 200 heats the heat-conducting medium and sends it into the heat-conducting medium channel 112. Room-temperature methanol-water enters the evaporation channel 113 through the reforming methanol inlet pipe 104. The methanol is heated and atomized in the evaporation channel 113 to form high-temperature methanol-water vapor. This high-temperature methanol-water vapor is then fully atomized through the through-hole 117 and enters the reforming gas chamber 106, uniformly diffusing into the catalyst. After passing through the zigzag channel, it undergoes a complete reforming reaction with the catalyst. The heat exchange between the reforming chamber 106 and the heat-conducting medium can meet the large amount of heat required for the methanol reforming reaction. After the reformed gas reacts fully with the catalyst, it flows out from the reformed gas outlet pipe 102. After the temperature of the reformed gas is adjusted by the heat exchanger, it can directly enter the fuel cell for power generation. The present invention has a compact structure, a simple heat exchange channel, and a stable and controllable temperature. While keeping the length of the reforming chamber 101 unchanged, the heat exchange path is extended, so that the methanol water vapor has enough heat to fully react with the catalyst, ensuring the conversion rate of methanol water vapor. This ensures that the reformed gas composition does not need to be purified and can directly meet the needs of the fuel cell. While improving the space utilization and thermal efficiency of the reforming hydrogen production reactor, it can also achieve miniaturization, reduce equipment costs, and is suitable for various mobile fuel cell application scenarios.

[0060] The above description is merely a preferred embodiment of the present invention. It should be noted that those skilled in the art can make various improvements and substitutions without departing from the technical principles of the present invention, and these improvements and substitutions should also be considered within the scope of protection of the present invention. The basic principles, main features, and advantages of the present invention have been shown and described above. It is obvious to those skilled in the art that the present invention is not limited to the details of the above preferred embodiments. The embodiments should be considered exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the foregoing description. Therefore, it is intended that all changes falling within the meaning and scope of the equivalents of the claims be included within the present invention.

[0061] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in the embodiments can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A single-sided heated methanol reforming hydrogen production reactor, characterized in that, include: A reforming chamber, comprising a reforming chamber housing, wherein a first heat-conducting plate is disposed within the reforming chamber housing, dividing the reforming chamber housing into a reformed gas chamber and a lower chamber; a second heat-conducting plate is disposed on the surface of the first heat-conducting plate facing the lower chamber, dividing the lower chamber into a heat-conducting medium channel and an evaporation channel; a reformed methanol inlet pipe communicating with the evaporation channel is disposed on one side of the reforming chamber housing; a through hole is disposed on the first heat-conducting plate communicating with the evaporation channel and the reformed gas chamber, the through hole being located at the end of the evaporation channel away from the reformed methanol inlet pipe; and a reformed gas outlet pipe communicating with the reformed gas chamber is also disposed at the end of the reforming chamber housing near the reformed methanol inlet pipe. A burner, used to heat the heat transfer medium and then send it into the heat transfer medium channel; It also includes multiple baffles, which are arranged in parallel within the reforming gas chamber and connected to the first heat-conducting plate. The multiple baffles divide the reforming gas chamber into multiple independent small chambers. Adjacent baffles are staggered with notches so that adjacent independent small chambers are connected in series to form a Z-shaped flow channel. It also includes a first heat-conducting unit, which is disposed in each of the small chambers and parallel to the baffle. The first heat-conducting unit is connected to the first heat-conducting plate, and there is a gap between the first heat-conducting unit and the inner wall of the reforming chamber. The heat-conducting medium channel is provided with a matrix arrangement of second heat-conducting units; The second heat-conducting unit, arranged in a matrix, forms an air-retaining area near the through hole.

2. The single-sided heated methanol reforming hydrogen production reactor according to claim 1, characterized in that, The evaporation channel is equipped with a third heat conduction unit.

3. The single-sided heated methanol reforming hydrogen production reactor according to claim 2, characterized in that, The first heat-conducting unit, the second heat-conducting unit, and the third heat-conducting unit are any one of heat-conducting fins or heat-conducting pillars.

4. The single-sided heated methanol reforming hydrogen production reactor according to claim 1, characterized in that, The reforming chamber housing is provided with a heat transfer medium inlet at one end away from the reformed methanol inlet pipe. The burner is located at the end of the reforming chamber housing. The burner heats the heat transfer medium and then sends it into the heat transfer medium flow channel through the heat transfer medium inlet.

5. A single-sided heated methanol reforming hydrogen production reactor according to claim 4, characterized in that, The reforming chamber housing is provided with a heat-conducting medium outlet pipe at one end near the reforming methanol inlet pipe, and the heat-conducting medium outlet pipe is connected to the heat-conducting medium flow channel.

6. A single-sided heated methanol reforming hydrogen production reactor according to claim 1, characterized in that, The reformed gas outlet pipe is equipped with a perforated catalyst baffle.

Images