A methanol reforming hydrogen reactor

Abstract

The present application relates to the technical field of hydrogen production by methanol reforming, and specifically discloses a hydrogen production by methanol reforming reactor, which comprises a reforming chamber box, a reforming cavity is formed in the reforming chamber box, a baffle is arranged in the reforming cavity to divide the reforming cavity into multiple independent cavities, a heat conducting medium flow channel is arranged on the side wall of the reforming chamber box, a heat conducting medium inlet and a heat conducting medium outlet are arranged at two ends of the reforming chamber box and communicate with the heat conducting medium flow channel, an evaporation flow channel is arranged on the upper edge of the reforming chamber box, a reforming methanol shunt inlet is arranged at one end of the reforming chamber box close to the heat conducting medium outlet and communicates with the evaporation flow channel, a blind hole is arranged at one end of the reforming chamber box close to the heat conducting medium inlet and communicates the evaporation flow channel and the reforming cavity, and a reforming gas outlet is further arranged at one end of the reforming chamber box close to the heat conducting medium outlet and communicates with the reforming cavity. The present application can improve the thermal efficiency of the hydrogen production by reforming reactor, and realize miniaturization and cost reduction.

Description

Technical Field

[0001] This invention relates to the field of methanol reforming for hydrogen production technology, and in particular to a methanol reforming for hydrogen production reactor. 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 methanol reforming hydrogen production reactor, comprising a reforming chamber housing. A reforming chamber is formed within the reforming chamber housing, and baffles within the reforming chamber divide it into multiple independent chambers. Adjacent baffles have staggered flow guide holes to allow communication between adjacent independent chambers. A heat-conducting medium channel is provided on the side wall of the reforming chamber housing. A heat-conducting medium inlet and a heat-conducting medium confluence outlet channel, respectively, are provided at both ends of the reforming chamber housing. An evaporation channel is provided on the upper edge of the reforming chamber housing. A reformed methanol diversion inlet, communicating with the evaporation channel, is provided at the end of the reforming chamber housing near the heat-conducting medium confluence outlet channel. A blind hole, connecting the evaporation channel and the reforming chamber, is provided at the end of the reforming chamber housing near the heat-conducting medium inlet. A reformed gas confluence outlet channel, communicating with the reforming chamber, is also provided at the end of the reforming chamber housing near the heat-conducting medium confluence outlet channel.

[0006] More preferably, it also includes a partition, which is horizontally disposed in the reforming chamber to divide the reforming chamber into an upper chamber and a lower chamber, both of which are connected to the blind hole and the reforming gas manifold outlet channel.

[0007] More preferably, the partition plate has a connecting hole for connecting the upper chamber and the lower chamber, and the connecting hole is located in each of the independent chambers.

[0008] More preferably, the inner wall of the reforming chamber housing is provided with a through hole connecting the blind hole and the reforming chamber. The through hole includes an upward-sloping through hole and a downward-sloping through hole. The upward-sloping through hole communicates with the upper chamber, and the downward-sloping through hole communicates with the lower chamber.

[0009] More preferably, the evaporation channel is provided with a first heat-conducting fin matrix along the flow direction of reformed methanol.

[0010] More preferably, the heat-conducting medium channel is located directly below the evaporation channel, and multiple sets of second heat-conducting fins are arranged in a matrix along the flow direction of the heat-conducting medium in the heat-conducting medium channel, with each set of second heat-conducting fins having an air-retaining area near the evaporation channel.

[0011] More preferably, the reformed methanol diversion inlet and the blind hole are arranged diagonally on the reforming chamber housing, so that the evaporation channel forms an L-shaped structure.

[0012] More preferably, it also includes a connecting end plate, which is located at one end of the reforming chamber housing near the reformed methanol diversion inlet, and the connecting end plate is sealed to the reforming chamber housing by a sealing gasket.

[0013] More preferably, the connecting end plate is respectively provided with a reforming chamber inlet pipe, a heat transfer medium outlet pipe and a reforming chamber outlet pipe, the reforming chamber inlet pipe is connected to the reformed methanol diversion inlet, the heat transfer medium outlet pipe is connected to the heat transfer medium confluence outlet channel and the reforming chamber outlet pipe is connected to the reforming chamber.

[0014] More preferably, it also includes a burner, which is located at one end of the reforming chamber housing near the inlet of the heat transfer medium. The burner is used to heat the heat transfer medium and then deliver it to the heat transfer medium channel through the inlet of the heat transfer medium.

[0015] The methanol reforming hydrogen production reactor provided by this invention has the following advantages compared with the prior art:

[0016] This invention utilizes baffles within the reforming chamber to divide it into multiple independent chambers. Staggered flow guide holes on adjacent baffles create a V-shaped flow path between the chambers, extending the reaction path between the reformed gas and the catalyst. Furthermore, a heat-conducting medium flow channel is located on the side wall of the reforming chamber, allowing the heat-conducting medium to enter from the inlet and exit from the outlet. Heat from the heat-conducting medium is transferred to both the reforming chamber and the evaporation channel. An evaporation channel is located at the upper edge of the reforming chamber. During reforming, room-temperature methanol-water mixtures pass through the reformed methanol inlet and enter the evaporation channel. The methanol is heated and atomized in the evaporation channel to form high-temperature methanol-water vapor. This high-temperature methanol-water vapor is then fully atomized through blind holes and enters the reforming chamber, where it diffuses evenly to the catalyst. In this invention, a reforming reaction occurs under the action of a catalyst. The heat exchange between the reforming chamber and the heat-conducting medium can meet the large amount of heat required for the methanol reforming reaction. After the reformed gas fully reacts with the catalyst through the Z-shaped flow channel, it flows out from the reformed gas outlet channel. 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 flow channel, and a stable and controllable temperature. While keeping the length of the reforming chamber unchanged, the heat exchange stroke 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 can directly meet the needs of the fuel cell without purification. While improving the thermal efficiency of the reforming hydrogen production reactor, it can also achieve miniaturization and reduce equipment costs. This methanol reforming hydrogen production reactor is suitable for various mobile fuel cell application scenarios. Attached Figure Description

[0017] Figure 1 This is a perspective view of a methanol reforming hydrogen production reactor according to the present invention.

[0018] Figure 2 This is a top view of a methanol reforming hydrogen production reactor according to the present invention.

[0019] Figure 3 This is the present invention. Figure 2 A sectional view of section AA in the middle.

[0020] Figure 4 This is a schematic diagram of the internal structure of a methanol reforming hydrogen production reactor according to the present invention.

[0021] Figure 5 This is the present invention. Figure 4 A structural diagram from another perspective.

[0022] Figure 6 This is a schematic diagram of the arrangement of the end flow channel of the reforming chamber box described in this invention.

[0023] Figure 7 This is a side view of a methanol reforming hydrogen production reactor according to the present invention.

[0024] Figure 8 This is the present invention. Figure 5 The main view.

[0025] Figure 9 This is the present invention. Figure 5 Top view.

[0026] Figure 10 This is the present invention. Figure 9 Sectional view of section BB.

[0027] Figure 11 This is a schematic diagram of the assembly of the burner and the reforming chamber housing described in this invention.

[0028] In the picture:

[0029] 100. Reforming chamber housing; 101. Reforming chamber; 1011. Upper chamber; 1012. Lower chamber; 102. Baffle; 1021. Flow guide hole; 103. Partition; 1031. Connection hole; 104. Evaporation channel; 105. First heat-conducting fin; 106. Blind hole; 1061. Through hole; 107. Heat-conducting medium inlet; 108. Heat-conducting medium channel; 109. Second heat-conducting fin; 110. Refrigeration zone; 111. Temperature sensor mounting hole; 112. Heat-conducting medium manifold outlet channel; 113. Reformed gas manifold outlet channel; 114. Sealing gasket; 115. Reformed methanol diversion inlet;

[0030] 200. Connecting end plate; 201. Reforming chamber inlet pipe; 202. Heat transfer medium outlet pipe; 203. Reforming chamber outlet pipe;

[0031] 300. Burner;

[0032] The dashed lines with arrows in the diagram represent: L1, the flow trajectory of the heat-conducting medium; L2, the flow trajectory of reformed methanol in the reforming chamber; and L3, the flow trajectory of reformed methanol in the evaporation channel. Detailed Implementation

[0033] 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.

[0034] 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.

[0035] The terms "first" and "second" 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" or "second" 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.

[0036] 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.

[0037] 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.

[0038] 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.

[0039] like Figures 1-10 As shown, this embodiment provides a methanol reforming hydrogen production reactor, including a reforming chamber housing 100. The reforming chamber housing 100 contains a reforming chamber 101. Within the reforming chamber 101, baffles 102 divide the reforming chamber 101 into multiple independent chambers. Adjacent baffles 102 have staggered flow guide holes 1021 to connect adjacent independent chambers in series, forming a V-shaped flow channel. The sidewalls of the reforming chamber housing 100 are provided with heat-conducting medium flow channels 108. Both ends of the reforming chamber housing 100 are respectively provided with heat-conducting medium inlets communicating with the heat-conducting medium flow channels 108. The reforming chamber 100 has an evaporation channel 104 at its upper edge, a reforming methanol diversion inlet 115 connected to the evaporation channel 104 at one end of the reforming chamber 100 near the heat transfer medium outlet channel 112, a blind hole 106 connecting the evaporation channel 104 and the reforming chamber 101 at one end of the reforming chamber 100 near the heat transfer medium inlet 107, and a reforming gas outlet channel 113 connected to the reforming chamber 101 at one end of the reforming chamber 100 near the heat transfer medium outlet channel 112.

[0040] In the above example, multiple independent chambers are formed into a U-shaped flow channel by baffle 102 to extend the reaction path between the reformed gas and the catalyst. The heat transfer medium can enter the heat transfer medium flow channel 108 from the heat transfer medium inlet 107 and flow out from the heat transfer medium confluence outlet channel 112. The heat of the heat transfer medium is transferred to the reforming chamber 101 and the evaporation channel 104 through heat transfer. Because the evaporation channel 104 is provided on the upper edge of the reforming chamber box 100, during the reforming process, room temperature methanol-water enters the evaporation channel 108 through the reformed methanol diversion inlet 115. Inside the 4th chamber, methanol is heated and atomized in the evaporation channel 104 to form high-temperature methanol water vapor. The high-temperature methanol water vapor is then fully atomized through the blind hole 106 and enters the reforming chamber 101 to diffuse evenly into the catalyst. Under the action of the catalyst, a reforming reaction occurs. The heat exchange between the reforming chamber 101 and the heat-conducting medium can meet the large amount of heat required for the methanol reforming reaction. After the reformed gas fully reacts with the catalyst through the Z-shaped channel, it flows out from the reformed gas confluence outlet channel 113. 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.

[0041] The methanol reforming hydrogen production reactor provided in this embodiment has a compact structure, a simple heat exchange channel, and a stable and controllable temperature. While keeping the length of the reforming chamber 100 unchanged, the heat exchange stroke 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 components do not need to be purified and can directly meet the needs of fuel cells. While improving the thermal efficiency of the reforming hydrogen production reactor, it can also achieve miniaturization and reduce equipment costs.

[0042] In some examples, the reformed methanol split inlet 115 and the blind hole 106 are arranged diagonally on the reforming chamber housing 100, and there are two reformed methanol split inlets 115. There are also two evaporation channels 104, which extend along the upper edge of the reforming chamber housing 100 to the blind hole 106. In this example, the reforming chamber housing 100 is preferably a cuboid structure so that the evaporation channel 104 forms an L-shaped structure, which extends the path of evaporation heat exchange and ensures that methanol can be fully atomized to form high-temperature methanol water vapor before entering the reforming chamber 101 through the blind hole 106.

[0043] In the above example, in order to improve the thermal efficiency of each of the two evaporation channels 104, the heat transfer medium channels 108 should be symmetrically arranged on both sides of the reforming chamber housing 100, so that the heat transfer area is doubled, the heat transfer efficiency is improved, and the response time of the reformer is reduced.

[0044] In other examples, a trapezoidal structure for the reforming chamber 100 can achieve a similar effect, and this is not a limitation here.

[0045] In some examples, to further improve heat exchange efficiency, the baffle 102 can also act as a heat-conducting fin. In addition, the baffle 102 divides the reforming chamber 101 into multiple independent chambers to form a Z-shaped flow channel, which can also prevent the catalyst from sinking and causing cavities during the reforming process, and effectively avoid the problem of incomplete reaction between methanol water vapor and the catalyst. In addition, the side wall of the reforming chamber 101 can also act as a heat-conducting fin to ensure that the catalyst in the entire reforming chamber 101 can be heated quickly and uniformly.

[0046] In the above example, to facilitate the processing of the chambers and channels within the reforming chamber housing 100, the reforming chamber housing 100 also includes a top plate, side plates, and a connecting end plate 200. The top plate is sealed and welded to the top of the reforming chamber housing 100, so that the reforming chamber 101 and the evaporation channel 104 respectively form sealed spaces. The side plates are welded to the sides of the reforming chamber housing 100, so that the heat transfer medium channel 108 also forms a sealed space. This simplifies assembly and prevents leakage of the heat transfer medium, reformed methanol, and reformed gas. The connecting end plate 200 is located at one end of the reforming chamber housing 100 near the reformed methanol diversion inlet 115. The connecting end plate 200 is sealed to the reforming chamber housing 100 by a sealing gasket 114. The top plate, side plates, and connecting end plate 200 also facilitate subsequent maintenance of the interior of the reforming chamber housing 100.

[0047] In a preferred embodiment, the connecting end plate 200 is respectively provided with a reforming chamber inlet pipe 201, a heat transfer medium outlet pipe 202, and a reforming chamber outlet pipe 203. The reforming chamber inlet pipe 201 is connected to the reformed methanol branch inlet 115, the heat transfer medium outlet pipe 202 is connected to the heat transfer medium confluence outlet channel 112, and the reforming chamber outlet pipe 203 is connected to the reforming chamber 101. During the reforming process, room temperature methanol-water enters different reformed methanol branch inlets 115 through the reforming chamber inlet pipe 201, and is then guided by the reformed methanol branch inlets 115 to the corresponding evaporation channels 104. Methanol is heated and atomized in the evaporation channels 104 to form high temperature methanol. The methanol water vapor, at high temperature, is fully atomized through blind hole 106 and enters the reforming chamber 101, where it diffuses evenly into the catalyst. Under the action of the catalyst, a reforming reaction occurs. The heat exchange between the reforming chamber 101 and the heat transfer medium can meet the large amount of heat required for the methanol reforming reaction. After the reformed gas fully reacts with the catalyst through the Z-shaped flow channel, it flows from the reformed gas confluence outlet channel 113 to the reforming chamber outlet pipe 203. The heat transfer medium enters the heat transfer medium flow channel 108 through the heat transfer medium inlet 107. After heat exchange, the heat transfer medium in the heat transfer medium flow channels 108 on both sides gathers into the heat transfer medium outlet pipe 202.

[0048] In some embodiments, a mesh-like catalyst baffle is also provided on the reforming chamber outlet pipe 203 to ensure that the reformed gas flowing out of the reforming chamber outlet pipe 203 can directly enter the fuel cell for power generation after the temperature is adjusted by the heat exchanger.

[0049] In some examples, to further prevent catalyst settling and create cavities, and to ensure sufficient contact and reaction between the reformed gas and the catalyst, the methanol reforming hydrogen production reactor also includes a partition 103. The partition 103 is horizontally disposed within the reforming chamber 101 to divide the reforming chamber 101 into an upper chamber 1011 and a lower chamber 1012. Both the upper chamber 1011 and the lower chamber 1012 are connected to the blind hole 106 and the reformed gas confluence outlet channel 113. By setting the partition 103 to further divide the independent chamber into smaller chambers, it is possible to further prevent catalyst settling and create cavities within the reforming chamber 101, and to avoid the problem of incomplete reaction between methanol water vapor and the catalyst.

[0050] In the above example, the inner wall of the reforming chamber 100 is provided with a through hole 1061 connecting the blind hole 106 and the reforming chamber 101. The through hole 1061 includes an upward-sloping through hole and a downward-sloping through hole. The upward-sloping through hole is connected to the upper chamber 1011, and the downward-sloping through hole is connected to the lower chamber 1012, so that the fully atomized methanol vapor can enter the upper chamber 1011 and the lower chamber 1012 through the upward-sloping through hole and the downward-sloping through hole, respectively. The through hole 1061 also acts as a flow restrictor, which can ensure that the methanol water can be fully atomized when it enters the reforming chamber 101 after being atomized into high-temperature methanol water vapor through the flow restrictor.

[0051] It should be noted that high-temperature methanol water vapor enters both the upper chamber 1011 and the lower chamber 1012 simultaneously through the flow limiting valve, is fully atomized and evenly diffused into the catalyst, and undergoes a reforming reaction under the action of the catalyst. The reforming reaction requires a large amount of heat absorption. At this time, the reforming chamber exchanges a large amount of heat with the heat transfer medium in the heat transfer medium channel 108 to ensure the heat required for the reforming reaction.

[0052] In some examples, the partition 103 has a connection hole 1031 for connecting the upper chamber 1011 and the lower chamber 1012. The connection hole 1031 is located in each independent chamber to ensure that the reformed gas is evenly diffused throughout the reforming chamber.

[0053] In the above example, the multi-turn flow channel design greatly increases the reaction path of the reformed gas. The reformed gas turns multiple times in the catalyst, which improves the thermal efficiency. Finally, it flows out of the reformer through the reforming chamber outlet pipe 203. After the temperature of the reformed gas is adjusted by the heat exchanger, it can directly enter the fuel cell to generate electricity.

[0054] In some examples, the partition 103 should be positioned in the middle of the reforming chamber outlet pipe 203 to ensure that the outlet areas of the upper chamber 1011 and the lower chamber 1012 are the same.

[0055] In some examples, to further improve the heat exchange efficiency between methanol-water and the heat transfer medium, the evaporation channel 104 is positioned directly above the heat transfer medium channel 108, and the evaporation channel 104 is provided with first heat transfer fins 105 in the matrix along the flow direction of reformed methanol.

[0056] In some examples, to further improve the heat exchange efficiency between the catalyst layer and the heat transfer medium, the heat transfer medium channel 108 is positioned directly below the evaporation channel 104. Multiple sets of second heat transfer fins 109 are arranged in the heat transfer medium channel 108 along the flow direction of the heat transfer medium to improve the heat exchange efficiency between the catalyst layer and the heat transfer medium and ensure uniform heat distribution in the heat transfer channel. Each set of second heat transfer fins 109 has an air-retaining area 110 near the evaporation channel 104 to reduce the heat exchange efficiency at that location, ensuring that more heat can be transferred to the methanol-water mixture in the evaporation channel 104 through the first heat transfer fins 105. The remaining second heat transfer fins 109 ensure sufficient heat exchange between the heat transfer medium and the catalyst layer.

[0057] In other examples, the heat exchange with the evaporation channel 104 and the reforming chamber 101 can be adjusted by adjusting parameters such as the number and size of the heat-conducting fins / pillars.

[0058] In other examples, the first heat-conducting fin 105 and the second heat-conducting fin 109 can also be replaced with heat-conducting pillars. The heat-conducting fins and heat-conducting pillars have similar effects, the only difference being the arrangement. The heat-conducting fins need to be arranged along a direction parallel to the flow channel, while the heat-conducting pillars can be arranged in a matrix.

[0059] In some examples, the baffle 102 is provided with a temperature sensor mounting hole 111. By setting the temperature sensor mounting hole 111 as the mounting point of the reforming chamber temperature sensor, the reaction temperature of the catalyst in the reforming chamber 101 can be accurately detected, effectively improving the control of thermal efficiency.

[0060] In some examples, such as Figure 11 As shown, the methanol reforming hydrogen production reactor also includes a burner 300, which is located at one end of the reforming chamber 100 near the heat transfer medium inlet 107. The burner 300 is used to heat the heat transfer medium and then transport it through the heat transfer medium inlet 107 to the heat transfer medium flow channel 108. The function of the burner 300 is to provide heat to the methanol reforming hydrogen production reactor, so that the methanol water vapor has enough heat to fully react with the catalyst, ensuring that the reformed gas components do not need to be purified and can directly meet the needs of the fuel cell.

[0061] In other examples, the burner 300 can use heat transfer mediums such as heat transfer oil or high-temperature air as a heat source. The burner 300 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.

[0062] In some examples, the reforming chamber housing 100 can be manufactured by methods such as die casting or machining and assembled into a whole by welding.

[0063] In some examples, to improve the heat exchange of the heat transfer medium, the components of the reforming chamber housing 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.

[0064] 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, a heat insulation layer is wrapped around the outer wall of the entire reforming chamber 100. 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.

[0065] The working principle of this embodiment is as follows: During the reforming process, the heat transfer medium is heated by the burner 300 and enters the heat transfer medium flow channel 108 from the heat transfer medium inlet 107. Part of the heat from the heat transfer medium is transferred to the first heat transfer fin 105 in the evaporation flow channel 104 through the reforming chamber housing 100 itself, and another part of the heat is transferred to the catalyst layer of the reforming chamber 101 through the second heat transfer fin 109 and the reforming chamber housing 100 itself. The heat-exchanged heat transfer medium flows out from the heat transfer medium confluence outlet channel 112, and room temperature methanol-water enters the evaporation flow channel 104 through the reformed methanol diversion inlet 115. Inside, methanol is heated and atomized in the evaporation channel 104 to form high-temperature methanol water vapor. The high-temperature methanol water vapor is then fully atomized through the through hole 1061 on the side of the blind hole 106 and enters the reforming chamber 101 to diffuse evenly into the catalyst. The methanol water vapor undergoes a reforming reaction under the action of the catalyst. The heat exchange between the reforming chamber 101 and the heat-conducting medium can meet the large amount of heat required for the methanol reforming reaction. After the reformed gas fully reacts with the catalyst through the zigzag series flow channels, it flows out from the reformed gas confluence outlet channel 113. 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.

[0066] In summary, this invention provides a methanol reforming hydrogen production reactor, which divides the reforming chamber 101 into multiple independent chambers by installing baffles 102 within the reforming chamber 101. Staggered flow guide holes 1021 are provided on adjacent baffles 102, forming a V-shaped flow channel among the multiple independent chambers to extend the reaction path between the reformed gas and the catalyst. Furthermore, a heat-conducting medium flow channel 108 is provided on the side wall of the reforming chamber 100, allowing the heat-conducting medium to flow from the heat-conducting medium inlet 1... 07 enters the heat transfer medium flow channel 108 and flows out from the heat transfer medium outlet channel 112. The heat of the heat transfer medium is transferred to the reforming chamber 101 and the evaporation channel 104 through heat transfer. The evaporation channel 104 is provided on the upper edge of the reforming chamber 100. During the reforming process, room temperature methanol-water enters the evaporation channel 104 through the reformed methanol diversion inlet 115. The methanol is heated and atomized in the evaporation channel 104 to form high-temperature methanol-water vapor. Methanol water vapor is fully atomized through blind holes 106 and enters the reforming chamber 101, where it diffuses evenly into the catalyst. Under the action of the catalyst, a reforming reaction occurs. The heat exchange between the reforming chamber 101 and the heat-conducting medium can meet the large amount of heat required for the methanol reforming reaction. After the reformed gas fully reacts with the catalyst through the Z-shaped flow channel, it flows out from the reformed gas outlet channel 113. 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 flow channel, and a stable and controllable temperature. With the length of the reforming chamber box 100 remaining unchanged, the heat exchange stroke 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 and ensuring that the reformed gas composition can directly meet the needs of the fuel cell without purification. While improving the thermal efficiency of the reforming hydrogen production reactor, it can also achieve miniaturization and reduce equipment costs. This methanol reforming hydrogen production reactor is suitable for various mobile fuel cell application scenarios.

[0067] 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.

[0068] 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 methanol reforming hydrogen production reactor, characterized in that, The system includes a reforming chamber housing, within which a reforming chamber is formed. Within the reforming chamber, baffles divide the reforming chamber into multiple independent chambers. Adjacent baffles have staggered flow guide holes to allow communication between adjacent independent chambers. The sidewalls of the reforming chamber housing have heat-conducting medium channels. Both ends of the reforming chamber housing have heat-conducting medium inlets and heat-conducting medium outlet channels, respectively, communicating with the heat-conducting medium channels. The upper edge of the reforming chamber housing has an evaporation channel. The end of the reforming chamber housing near the heat-conducting medium outlet channel has a reformed methanol diversion inlet communicating with the evaporation channel. The end of the reforming chamber housing near the heat-conducting medium inlet has a blind hole connecting the evaporation channel and the reforming chamber. The end of the reforming chamber housing near the heat-conducting medium outlet channel also has a reformed gas outlet channel communicating with the reforming chamber. It also includes a partition, which is horizontally disposed in the reforming chamber to divide the reforming chamber into an upper chamber and a lower chamber, both of which are connected to the blind hole and the reforming gas manifold outlet channel; The evaporation channel is provided with a first heat-conducting fin matrix along the flow direction of reformed methanol. The heat-conducting medium channel is located directly below the evaporation channel. Multiple sets of second heat-conducting fins are arranged in a matrix along the flow direction of the heat-conducting medium in the heat-conducting medium channel. Each set of second heat-conducting fins has an air-proof area near the evaporation channel. The partition plate has connecting holes for connecting the upper chamber and the lower chamber, and the connecting holes are located in each of the independent chambers.

2. The methanol reforming hydrogen production reactor according to claim 1, characterized in that, The inner wall of the reforming chamber is provided with a through hole connecting the blind hole and the reforming chamber. The through hole includes an upward-sloping through hole and a downward-sloping through hole. The upward-sloping through hole communicates with the upper chamber, and the downward-sloping through hole communicates with the lower chamber.

3. The methanol reforming hydrogen production reactor according to claim 1, characterized in that, The reformed methanol diversion inlet and blind hole are arranged diagonally on the reforming chamber housing so that the evaporation channel forms an L-shaped structure.

4. The methanol reforming hydrogen production reactor according to claim 1, characterized in that, It also includes a connecting end plate, which is located at one end of the reforming chamber housing near the reformed methanol diversion inlet, and the connecting end plate is sealed to the reforming chamber housing by a sealing gasket.

5. A methanol reforming hydrogen production reactor according to claim 4, characterized in that, The connecting end plate is respectively provided with a reforming chamber inlet pipe, a heat transfer medium outlet pipe and a reforming chamber outlet pipe. The reforming chamber inlet pipe is connected to the reformed methanol diversion inlet, the heat transfer medium outlet pipe is connected to the heat transfer medium confluence outlet channel, and the reforming chamber outlet pipe is connected to the reforming chamber.

6. A methanol reforming hydrogen production reactor according to claim 1, characterized in that, It also includes a burner, which is located at one end of the reforming chamber housing near the inlet of the heat transfer medium. The burner is used to heat the heat transfer medium and then deliver it to the heat transfer medium channel through the inlet of the heat transfer medium.

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