Circulating methanol combustion reforming hydrogen production integrated device

Abstract

The invention discloses a circulating methanol combustion reforming hydrogen production integrated device, which belongs to the technical field of methanol reforming hydrogen production, and comprises an air diversion mechanism, a coupling combustion mechanism, a fluid director, a reforming hydrogen production mechanism and an isolating membrane assembly which are sequentially integrated on a hydrogen production device body, fuel gasification mechanisms are arranged on the two sides of the coupling combustion mechanism, and the reforming hydrogen production mechanism comprises a reforming chamber and a heating chamber; the heating chamber is communicated with the fluid director; a reforming gasification mechanism is arranged in the heating chamber, the reforming gasification mechanism is communicated with the reforming chamber, a plurality of detachable porous catalyst modules are arranged in the reforming chamber, and the isolating membrane assembly is used for selectively outputting hydrogen and waste gas and introducing unreacted methanol gas into the circulating guide pipe to circulate to the circulating flow guide inlet for recycling. According to the device, the circulating flow guide device and the isolation device are additionally arranged, so that unutilized gas is recycled, the cyclic utilization of fuel gas is realized, and the hydrogen preparation purity rate is improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of methanol reforming hydrogen production, in particular to a circulating methanol combustion reforming hydrogen production integrated device. BACKGROUND

[0002] Hydrogen is a kind of pollution-free green new energy, which has the characteristics of high conversion rate, high energy density, environmental protection and no pollution. The whole reaction process of hydrogen energy supply has no pollutants, and the emission of carbon dioxide is zero. It can be used as a carrier in a new low-carbon energy supply system. At present, the main way to produce hydrogen is water electrolysis and methanol steam reforming hydrogen production. The cost of water electrolysis hydrogen production is too high and the impurities are too many. At the same time, the storage also needs supporting facilities, which is not suitable for small and medium-sized production equipment. The cost of methanol steam reforming hydrogen production is low and suitable for small mobile and high power density occasions, and the hydrogen production efficiency is relatively stable. In order to replace the existing kettle type reaction equipment, improve safety and production efficiency, reduce the emission of three wastes in the production process, and build a continuous hydrogenation reduction platform for enterprises to enhance the competitiveness of products; on this basis, reduce the safety risk of manual operation, reduce the safety of the working environment; improve the continuous operation time and increase the production capacity. The high efficiency of the micro-channel heat exchanger in the device is due to the internal structure that makes the fluid and solid fully contact, and the vortex and turbulent flow in the micro-channel enhance the heat transfer effect, thereby improving the heat transfer efficiency. Due to its high efficiency, the micro-channel heat exchanger requires less energy under the same heat transfer effect, which can achieve energy saving effect and improve the efficiency of the catalyst. In order to improve the hydrogen production efficiency of the reactor, a circulating methanol combustion reforming hydrogen production integrated device is needed. SUMMARY

[0003] In order to achieve the above purpose, the application adopts the following technical scheme: A circulating methanol combustion reforming hydrogen production integrated device, comprising: A hydrogen production device body, an air flow guide mechanism, a coupling combustion mechanism, a flow guide, a reforming hydrogen production mechanism and a separation membrane assembly are sequentially integrated in the internal cavity of the hydrogen production device body from front to back. The air flow guide mechanism is provided with an air inlet and a circulating flow guide inlet. The coupling combustion mechanism is provided with a fuel gasification mechanism on both sides, the fuel gasification mechanism is communicated with the air flow guide mechanism through a fuel gasification pipeline, and the flow guide is communicated with the coupling combustion mechanism. The reforming hydrogen production mechanism comprises a reforming chamber at the upper part and a heating chamber at the lower part; the heating chamber is communicated with the flow guide, and the combustion exhaust gas enters the heating chamber through the flow guide; a reforming gasification mechanism is arranged in the heating chamber, the reforming gasification mechanism is communicated with the reforming chamber through a reforming gasification pipeline, a plurality of detachable porous catalyst modules are arranged in the reforming chamber, the isolation film assembly is located between the reforming chamber and the gas outlet, and hydrogen, exhaust gas and unreacted methanol gas are selectively output and circulated to the circulating flow guide inlet through a circulating pipeline for recycling.

[0004] Further, the air flow guide mechanism comprises: a shell, one side of the shell being communicated with the air inlet and the other side being connected with the coupling combustion mechanism; a heat transfer inner container, the heat transfer inner container being arranged in the shell, and a fan blade being arranged at the center of the heat transfer inner container; a gas premixing chamber, the gas premixing chamber being arranged in the shell and arranged at the lower side of the heat transfer inner container, the gas premixing chamber being communicated with the inlet side of the heat transfer inner container, and the fuel gasification pipeline being communicated with the gas premixing chamber; a pre-flow chamber, the pre-flow chamber being arranged between the shell and the coupling combustion mechanism, one end of the pre-flow chamber being communicated with the outlet side of the heat transfer inner container, and the other end of the pre-flow chamber being communicated with the coupling combustion mechanism.

[0005] Further, the fuel gasification pipeline is a serpentine bending channel; the coupling combustion mechanism is internally provided with a coupling combustor, the coupling combustor is filled with a coupling combustion catalyst, a high-temperature resistant coating is contained between the coupling combustion catalyst and the coupling combustor, and the two side walls of the coupling combustor constitute a coupling combustion heat transfer member for supplying heat to the fuel gasification mechanism.

[0006] Further, the flow guide comprises: a flow guide sheet, the flow guide sheet being arranged on the side of the coupling combustor away from the pre-flow chamber and being communicated with the coupling combustor; a heat transfer sheet, the heat transfer sheet being arranged on the side of the flow guide sheet away from the coupling combustor, and a plurality of openings being arranged at the lower end of the heat transfer sheet and communicated with the heating chamber.

[0007] Further, the reforming hydrogen production mechanism further comprises: a reforming premixing chamber, the reforming premixing chamber being arranged between the reforming chamber and the heat transfer sheet, the outlet of the reforming gasification pipeline being communicated with the reforming premixing chamber, and the other end of the reforming premixing chamber being communicated with the reforming chamber; A reforming guide vane is arranged in the reforming chamber and located away from the reforming pre-mixing chamber, the reforming guide vane and the reforming chamber side wall form a reforming isolation chamber, the isolation membrane assembly is arranged between the reforming isolation chamber and the gas outlet, for selectively outputting hydrogen, waste gas and unreacted methanol gas to the circulating guide inlet through the circulating pipe for recycling, a plurality of detachable openings corresponding to the porous catalyst module are formed in the wall plate of the reforming chamber.

[0008] Further, the upper end of the air guide mechanism is provided with a first electric heater, and the upper end of the coupled combustion mechanism is provided with a second electric heater.

[0009] Further, a reaction heater is arranged in the heating chamber, the reaction heater is used for heating the reforming gasification pipe; the gasification inlet of the reforming gasification pipe and the fuel gasification inlet of the fuel gasification pipe are both nozzle structures formed on the side wall of the hydrogen production device body.

[0010] Further, the isolation membrane assembly comprises: A methanol isolation membrane is arranged in the reforming isolation chamber and located between the reforming isolation chamber and the first outlet, hydrogen directly passes through the methanol isolation membrane and is collected from the first outlet; A hydrogen isolation membrane is arranged between the reforming isolation chamber and the heating chamber, and unreacted methanol gas directly passes through the hydrogen isolation membrane and enters the lower heating chamber; A waste isolation membrane is arranged at the inlet of the circulating pipe, all unreacted methanol gas is introduced into the circulating pipe for recycling, and a methanol isolation membrane is arranged between the heating chamber and the second outlet, waste gas passes through the methanol isolation membrane and flows out of the reaction device through the second outlet.

[0011] Further, the pipe wall of the circulating pipe is integrated with a heat transfer structure; and a one-way nozzle is arranged at the circulating guide inlet of the circulating pipe.

[0012] The beneficial effects of the present application are: The device is arranged in the reforming chamber as a detachable porous catalyst plate type channel, and through the increase of the circulating guide device and the isolation device, the unutilized gas is recycled, the fuel gas is recycled, and the hydrogen production purity is improved. By arranging the nozzle at the inlet, the rapid gasification of the fuel and the reforming gas is increased, and the heat utilization rate of the device is increased.

[0013] The heat generated by coupling combustion is not only used for maintaining self-reaction, but also used for heating the fuel gasification mechanisms on both sides through the coupling combustion heat transfer member, and the high-temperature waste gas is guided into the heating chamber through the flow guide, so that a continuous heat source is provided for the reforming reaction and the reforming gasification, the heat loss is greatly reduced, and the overall heat utilization rate is greatly improved.

[0014] The detachable porous catalyst module design is used in the reforming chamber, the contact area of the catalyst and the reforming gas can be increased, the catalyst can be conveniently and timely replaced after deactivation, the whole reactor does not need to be replaced, the maintenance cost and time are greatly reduced, the service life of the device is prolonged, and the hydrogen production efficiency is ensured.

[0015] Due to the insufficient reaction, part of the residual reaction gas is left after the reaction, the hydrogen production efficiency and the heat utilization rate are improved through the isolation film assembly, and the methanol gas is recycled through the circulating pipe to form a circulating system, so that the heat utilization rate is improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 The whole structure of the circulating methanol combustion reforming hydrogen production integrated device is shown in the figure Figure One ; Figure 2 The whole structure of the circulating methanol combustion reforming hydrogen production integrated device is shown in the figure Figure Two ; Figure 3 The whole structure of the circulating methanol combustion reforming hydrogen production integrated device is shown in the figure Figure Three ; Figure 4 The whole structure of the circulating methanol combustion reforming hydrogen production integrated device is shown in the figure Figure Four ; Figure 5 The internal structure of the circulating methanol combustion reforming hydrogen production integrated device is shown in the figure Figure 6 The internal structure of the circulating methanol combustion reforming hydrogen production integrated device is shown in the figure Figure One ; Figure 7 The internal structure of the circulating methanol combustion reforming hydrogen production integrated device is shown in the figure Figure Two ; Figure 8 The internal structure of the circulating methanol combustion reforming hydrogen production integrated device is shown in the figure Figure Three ; Figure 9 The internal structure of the circulating methanol combustion reforming hydrogen production integrated device is shown in the figure Figure Four ; Figure 10Internal structure diagram of the integrated device for hydrogen production by circulating methanol combustion reforming according to the present application Figure Five ; Figure 11 Coupling combustion mechanism diagram of the integrated device for hydrogen production by circulating methanol combustion reforming according to the present application Figure One ; Figure 12 Coupling combustion mechanism diagram of the integrated device for hydrogen production by circulating methanol combustion reforming according to the present application Figure Two ; Figure 13 Combustion gasification mechanism diagram of the integrated device for hydrogen production by circulating methanol combustion reforming according to the present application Figure One ; Figure 14 Combustion gasification mechanism diagram of the integrated device for hydrogen production by circulating methanol combustion reforming according to the present application Figure Two ; Figure 15 Reforming hydrogen production mechanism diagram of the integrated device for hydrogen production by circulating methanol combustion reforming according to the present application Figure One ; Figure 16 Reforming hydrogen production mechanism diagram of the integrated device for hydrogen production by circulating methanol combustion reforming according to the present application Figure Two ; Figure 17 Reforming hydrogen production mechanism diagram of the integrated device for hydrogen production by circulating methanol combustion reforming according to the present application Figure Three ; Figure 18 Reforming hydrogen production mechanism diagram of the integrated device for hydrogen production by circulating methanol combustion reforming according to the present application Figure Four ; Figure 19 Reforming hydrogen production mechanism diagram of the integrated device for hydrogen production by circulating methanol combustion reforming according to the present application Figure Five ; Figure 20 Circulating conduit diagram of the integrated device for hydrogen production by circulating methanol combustion reforming according to the present application Figure 21 Simple system flow chart of the integrated device for hydrogen production by circulating methanol combustion reforming according to the present application

[0017] In the figure: 1, air guide mechanism; 1-1, air inlet; 1-2, fan blade; 1-3, heat transfer inner container; 1-4-1, first electric heater; 1-4-2, first electric heater opening; 1-4-3, front cover; 1-5, first heat transfer piece, 1-6, gas premixing chamber, 1-8, circulating guide port; 2, coupling combustion mechanism; 2-1, sealing gasket; 2-2, fuel gasification pipeline, 2-2-1, fuel gasification inlet; 2-2-3, gasification outlet; 2-3, second heat transfer piece; 2-4-1, second electric heater; 2-4-2, second electric heater opening; 2-4-3, upper cover; 2-5, coupling combustor; 2-5-1, coupling combustion catalyst; 2-5-2, coupling combustion heat transfer piece; 2-6, pre-flow chamber; 3, hydrogen production device body; 4, flow guide; 4-1, flow guide piece; 4-2, heat transfer piece; 5, reforming hydrogen production mechanism; 6, reforming chamber; 6-1, reforming premixing chamber; 6-1-1, flow guide module; 6-1-3, premixing chamber outlet; 6-2, porous catalyst module; 6-3, dismounting port; 6-4, reforming flow guide piece; 6-5, first outlet; 7, heating chamber; 7-1, reaction heat supply device; 7-1-1, reaction heat exchanger; 7-2, reforming gasification pipeline; 7-2-1, reforming gasification inlet; 7-3, second outlet; 8, isolation membrane assembly; 8-1, hydrogen isolation membrane; 8-2, methanol isolation membrane; 8-3, waste isolation membrane; 8-4, circulating conduit. DETAILED DESCRIPTION

[0018] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0019] This part will describe the specific embodiments of the present application in detail, the preferred embodiments of the present application are shown in the accompanying drawings, the role of the drawings is to supplement the description of the text part with figures, so that people can intuitively and visually understand each technical feature and the overall technical scheme of the present application, but it cannot be understood as a limitation on the protection scope of the present application.

[0020] In the description of the present application, it should be understood that the orientation description, such as the orientation or position relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and cannot be understood as indicating or implying that the indicated mechanism or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0021] In the description of the present application, the meaning of one or more is one or more, the meaning of multiple is more than two, greater than, less than, more than, etc. are understood as not including the number, above, below, within, etc. are understood as including the number. If it is described that the first, second is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the sequence of indicated technical features.

[0022] In the description of the present application, unless otherwise explicitly limited, the words such as setting, installing, connecting, etc. should be broadly understood, and those skilled in the art can reasonably determine the specific meaning of the above words in the present application in combination with the specific content of the technical scheme.

[0023] Embodiment 1

[0024] Reference Figures 1 to 21 A circulating methanol combustion reforming hydrogen production integrated device, comprising: The internal cavity of the hydrogen production device body 3 is sequentially integrated with an air flow guide mechanism 1, a coupling combustion mechanism 2, a flow guide 4, a reforming hydrogen production mechanism 5 and a separation membrane assembly 8 from front to back. In specific implementation, a cavity is formed on the hydrogen production device body 3, the air flow guide mechanism 1, the coupling combustion mechanism 2, the flow guide 4 and the reforming hydrogen production mechanism 5 are sequentially installed in the cavity and constitute an integral whole, and after installation is completed, the gaps are sealed with carbon paper.

[0025] The air flow guide mechanism 1 is provided with an air inlet 1-1 and a circulating flow guide inlet; In this embodiment, the air flow guide mechanism 1 comprises: A shell, one side of the shell is in communication with the air inlet 1-1, and the other side is connected with the coupling combustion mechanism 2; A heat transfer inner container 1-3 is arranged in the shell, and the center of the heat transfer inner container 1-3 is provided with a fan blade 1-2; the fan blade 1-2 serves to fully mix and heat the gas and fully guide it into the pre-flow chamber 2-6.

[0026] A gas premixing chamber 1-6 is arranged in the shell and located at the lower side of the heat transfer inner container 1-3, the gas premixing chamber 1-6 is in communication with the inlet side of the heat transfer inner container 1-3, and a fuel gasification pipeline 2-2 is in communication with the gas premixing chamber 1-6; In the embodiment, the air guide mechanism 1 is sequentially installed in the order of the air inlet 1-1, the front cover 1-4-3, the first electric heater 1-4-1, the heat transfer inner container 1-3, the first heat transfer member 1-5, and the fan blade 1-2, and the front cover 1-4-3 is welded and sealed with the air guide mechanism 1. The air inlet 1-1 is connected to the air supply device such as a fan or the like to supply air, and the circulating gas flows into the gas premixing chamber 1-6 through the circulating guide port 1-8, the fuel gas flows into the gas premixing chamber 1-6 through the gasification outlet 2-2-3, the gas premixing chamber 1-6 contains the first heat transfer member 1-5 to preheat the gas, and then the gas and the air flow into the heat transfer inner container 1-3 and the fan blade 1-2 under the action of the fan to be uniformly mixed and heated.

[0027] Preferably, the circulating guide port 1-8 is designed as a single-way nozzle to prevent the fuel gas from flowing back into the circulating pipe 8-4, and the circulating guide port 1-8 functions to recycle the gas that has not been catalytically reacted to improve the heat utilization rate of the device.

[0028] In the embodiment, the gas premixing chamber 1-6 contains the first heat transfer member 1-5, the circulating fuel and the gasification fuel are premixed in the fuel premixing chamber, and then introduced into the upper part to be premixed and heated with the air. In the embodiment, the upper end of the heat transfer inner container 1-3 in the air guide mechanism 1 contains the first electric heater 1-4-1, the first electric heater 1-4-1 is installed in the first electric heater opening 1-4-2, and the device body contains a mounting cover for installation, which functions to provide heat to the gas in the air guide mechanism 1 and preheat the gas, and is sealed and mounted through the upper cover 2-4-3. The air guide mechanism 1 and the coupling combustion mechanism 2 are connected and sealed by a sealing gasket, and the air guide mechanism 1 and the hydrogen production device body 3 are connected and sealed by a screw and a gasket.

[0029] In the embodiment, a pre-flow chamber 2-6 is formed in the space between the air guide mechanism 1 and the coupling combustion mechanism 2, specifically, the pre-flow chamber 2-6 is arranged between the shell and the coupling combustion mechanism 2, and one end thereof communicates with the outlet side of the heat transfer inner container 1-3, and the other end thereof communicates with the coupling combustion mechanism 2, which functions to prevent the mixed gas from directly flowing into the coupling combustor 2-5, so that the coupling combustion catalyst on the coupling combustor 2-5 is uniformly reacted.

[0030] In the embodiment, fuel gasification pipelines 2-2 are arranged on both sides of the coupling combustion mechanism 2, and the fuel gasification pipelines 2-2 communicate with the air guide mechanism 1 through the fuel gasification pipelines 2-2.

[0031] In the embodiment, the coupling combustion mechanism 2 is located in the middle cavity of the hydrogen production device body 3, and fuel gasification pipes 2-2 are installed on both sides of the coupling combustion mechanism 2. The gasification outlets 2-2-3 of the fuel gasification pipes 2-2 are connected with the gas premixing chamber 1-6 of the air flow guide mechanism 1.

[0032] In the embodiment, the fuel gasification pipes 2-2 are serpentine channels. The fuel gasification pipes 2-2 can increase the heat transfer amount by increasing the fuel contact area, so that the gas can be rapidly gasified.

[0033] In the embodiment, the coupling combustion mechanism 2 is internally provided with a coupling combustor 2-5, and the coupling combustor 2-5 is filled with a coupling combustion catalyst 2-5-1. The coupling combustion catalyst 2-5-1 and the coupling combustor 2-5 are provided with a high-temperature resistant coating. The high-temperature resistant coating is used to prevent the coupling combustion catalyst 2-5-1 from being damaged due to expansion under high-temperature reaction. The two side walls of the coupling combustor 2-5 form a coupling combustion heat transfer member 2-5-2 for supplying heat to the fuel gasification pipes 2-2. The coupling combustion heat transfer member 2-5-2 provides heat to the fuel gasification pipes 2-2, so that the gas can be gasified. A second electric heater 2-4-1 and a second heat transfer member 2-3 are arranged above the coupling combustor 2-5. The second electric heater 2-4-1 is arranged in a second electric heater opening 2-4-2, and the hydrogen production device body is provided with an upper cover 2-4-3 for mounting the second electric heater 2-4-1. The second electric heater 2-4-1 provides heat for the combustion reaction.

[0034] Preferably, the coupling combustion mechanism 2 is designed in the shape of a cuboid.

[0035] In the embodiment, the coupling combustion mechanism 2 is internally provided with a coupling combustion mechanism 2.

[0036] In the embodiment, in the initial stage of the reaction, the second electric heater 2-4-1 provides heat for the fuel gasification. After the reaction is normally carried out, the second electric heater 2-4-1 is closed, and the coupling combustion heat transfer member 2-5-2 provides heat for the fuel gasification pipes 2-2, so that the fuel can be continuously gasified. The coupling combustion heat transfer member 2-5-2 and the hydrogen production device body 3 are connected by a carbon paper gasket and a screw.

[0037] In the embodiment, the air flow guide mechanism 1 is used for premixing and preheating the gas. The hot flow gas indirectly preheats the coupling combustion catalyst 2-5-1 in the coupling combustion mechanism 2 (the purpose of preheating the catalyst is to increase the temperature of the catalyst in the coupling combustion device, so that the reaction can be carried out).

[0038] In the embodiment, the flow guide 4 is in communication with the coupling combustion mechanism 2. In the embodiment, the flow guide 4 comprises: A flow guide plate 4-1 is arranged on the side of the coupling combustor 2-5 away from the pre-flow chamber 2-6, and is in communication with the coupling combustor 2-5. The heat transfer fin 4-2 is arranged on the side of the flow guide fin 4-1 away from the coupling combustor 2-5, and the lower end of the heat transfer fin 4-2 is provided with a plurality of openings for communication with the heating chamber 7.

[0039] In specific implementation, the reforming hydrogen production mechanism 5 is installed in the rear end cavity of the hydrogen production device body 3.

[0040] In this embodiment, the reforming hydrogen production mechanism 5 includes an upper reforming chamber 6 and a lower heating chamber 7; the heating chamber 7 is in communication with the flow guide 4, and the combustion exhaust gas enters the heating chamber 7 through the flow guide 4; the heating chamber 7 is provided with a reforming gasification mechanism, which is in communication with the reforming chamber 6 through a reforming gasification pipeline 7-2; a plurality of detachable porous catalyst modules 6-2 are arranged in the reforming chamber 6; a separation membrane assembly 8 is arranged between the reforming chamber 6 and the gas outlet, which is used for selectively outputting hydrogen and exhaust gas and circulating unreacted methanol gas to the circulating guide inlet through a circulating pipeline 8-4 for recycling.

[0041] In this embodiment, the heating chamber 7 is also provided with a reaction heater 7-1, which is used for heating the reforming gasification pipeline 7-2; the reforming gasification inlet 7-2-1 of the reforming gasification pipeline 7-2 and the fuel gasification inlet 2-2-1 of the fuel gasification pipeline 2-2 are both arranged on the side wall of the hydrogen production device body 3 in the form of nozzles, which can atomize the methanol liquid and improve the gasification rate of the liquid.

[0042] In specific implementation, the fuel gasification inlet 2-2-1 of the fuel gasification pipeline 2-2 is arranged on both sides of the coupling combustion mechanism 2, and is designed in the form of a nozzle to increase the contact area of the liquid (methanol aqueous solution). The methanol aqueous solution (liquid) is introduced into the fuel gasification pipeline 2-2 at the fuel gasification inlet 2-2-1, and is changed into gas under the heating of the second electric heater 2-4-1, the second heat transfer member 2-3 and the coupling combustion heat exchanger. Then, the gas is introduced into the gas mixing chamber at the gasification outlet 2-2-3 to wait for further heating and mixing. After the completion of mixing and preheating of the combustion gas in the air flow guide mechanism 1, the combustion gas is introduced into the pre-flow chamber 2-6, and then further introduced into the coupling combustor 2-5, which is heated by the coupling combustion catalyst 2-5-1 to produce flameless combustion and heat for the coupling gasification mechanism 2-2.

[0043] In specific implementation, the heating chamber 7 is also provided with a reaction heater 7-1, which is used for heating the reforming gasification pipeline 7-2; the reforming gasification inlet 7-2-1 of the reforming gasification pipeline 7-2 and the fuel gasification inlet 2-2-1 of the fuel gasification pipeline 2-2 are both arranged on the side wall of the hydrogen production device body 3 in the form of nozzles, which can atomize the methanol liquid and improve the gasification rate of the liquid.

[0044] In the embodiment, the combustion gas is introduced into the heating chamber 7, and the heat generated by the combustion gas is transferred to the reforming gasification pipeline 7-2 through the reaction heat exchanger 7-1 to gasify the gas, and then introduced into the reforming premixing chamber 6-1.

[0045] In the embodiment, the reforming fuel is introduced into the reforming gasification pipeline 7-2 at the reforming gasification inlet 7-2-1, and the fuel is gasified in the reforming gasification pipeline 7-2 and then introduced into the reforming premixing chamber 6-1. The front of the reforming premixing chamber 6-1 is the flow guide 4, which contains the flow guide blade 4-1 and the heat transfer blade 4-2. The high-temperature gas generated by the combustion reaction is uniformly guided into the heating chamber 7 through the flow guide blade 4-1, and the heat transfer blade 4-2 is used for the secondary preheating of the gas in the reforming premixing chamber 6-1. The internal passage of the reforming chamber 6 is designed as a plate-type parallel passage. In order to increase the catalyst base area, the plate-type passage is designed with an elliptical protrusion and uniformly perforated. The passage plate contains a porous copper-based catalyst coating 6-2. In order to increase the reaction rate and sustainability, the reforming chamber is designed with a detachable port 6-3 for timely replacement and update of the passage plate, and a carbon paper gasket is designed to seal it. The reforming hydrogen production mechanism 5 is sealed by a gasket; the reforming gasification pipeline 7-2 is sealed by a gasket.

[0046] In the embodiment, the reforming gasification pipeline 7-2 and the reaction heat exchanger 7-1 are located at the bottom of the reforming hydrogen production mechanism 5, and the reaction heat exchanger 7-1-1 is located inside the reaction heat exchanger 7-1.

[0047] In the embodiment, the fuel gas is introduced into the heating chamber 7 after the reaction in the coupled combustion mechanism 2. The heat contained in the gas will provide the reforming reaction in the reforming chamber 6 and the fuel gasification in the reforming gasification pipeline 7-2 under the action of the reaction heat exchanger 7-1, and then the fuel reaction gas flows out of the reaction device through the second outlet 7-3. The reforming fuel flows into the reforming gasification pipeline 7-2 at the reforming gasification inlet 7-2-1, which is located on both sides of the heating chamber 7, and the inlet is designed as a nozzle-type inlet to facilitate the rapid gasification of the fuel and improve the heat utilization rate. The gasified reaction gas is introduced into the reforming premixing chamber 6-1, which is uniformly heated under the action of the heat transfer blade 4-2 and the flow guide module 6-1-1, and then introduced into the reforming chamber 6 through the premixing chamber outlet 6-1-3. The reforming chamber 6 is filled with a porous granular copper-based catalyst in the plate-type passage, and the detachable plate contains a porous granular copper-based catalyst coating. The increased plate-type perforation and elliptical protrusion will increase the contact area of the reaction gas and the catalyst and increase the vortex flow of the flow field, thereby increasing the hydrogen production. The carbon paper is used to smooth the catalyst and evenly heat it to prevent the catalyst from swelling. The reaction heat exchanger 7-1 is sealed by a carbon paper gasket; the reforming gasification pipeline 7-2 is sealed by a carbon paper gasket; the reaction heat exchanger 7-1, the reforming hydrogen production mechanism 5, and the hydrogen production device body 3 are sealed and connected by gaskets and screws.

[0048] In the embodiment, the hydrogen reforming mechanism 5 further comprises: The reforming premixing chamber 6-1 is arranged between the reforming chamber 6 and the heat transfer sheet 4-2, the outlet of the reforming gasification pipeline 7-2 is communicated with the reforming premixing chamber 6-1, and the other end of the reforming premixing chamber 6-1 is communicated with the reforming chamber 6. In the embodiment, the reforming premixing chamber 6-1 is arranged in front of the reforming chamber 6, and a flow guide module 6-1-1 is arranged in the reforming premixing chamber 6-1, which is used to heat the reforming gas for the second time and guide the reforming gas into the reforming reaction chamber.

[0049] The reforming flow guide sheet 6-4 is arranged in the reforming chamber 6 and located on the side away from the reforming premixing chamber 6-1, the reforming flow guide sheet 6-4 and the side wall of the reforming chamber 6 form a reforming isolation chamber, the isolation membrane assembly 8 is arranged between the reforming isolation chamber and the gas outlet, and is used to selectively output hydrogen and waste gas and pass unreacted methanol gas to the circulating guide inlet for circulation and use, a plurality of detachable openings 6-3 corresponding to the porous catalyst module 6-2 are arranged on the wall plate of the reforming chamber 6.

[0050] Preferably, the reforming chamber 6 is internally designed as a porous plate type channel, the channel front contains a flow guide module 6-1-1, and the reforming chamber 6 is designed with a detachable porous catalyst module, so as to increase the hydrogen production rate by increasing the turbulent flow and the contact area.

[0051] In the embodiment, the reforming device mechanism 5 internally forms a gas recycling system through the design of the reforming flow guide sheet at the rear end of the reforming hydrogen production mechanism 5 and the isolation membrane assembly 8.

[0052] In the embodiment, the isolation membrane assembly 8 comprises: The methanol isolation membrane 8-2 is arranged in the reforming isolation chamber and located between the reforming isolation chamber and the first outlet, hydrogen directly passes through the methanol isolation membrane 8-2, is collected from the first outlet 6-5, and is collected. The hydrogen isolation membrane 8-1 is arranged between the reforming isolation chamber and the heating chamber 7, and unreacted methanol gas directly passes through the hydrogen isolation membrane 8-1 and enters the lower heating chamber 7. The waste isolation membrane 8-3 is arranged at the inlet of the circulating guide pipe 8-4, and the heating chamber and the second outlet are also provided with the methanol isolation membrane 8-2, all unreacted methanol gas is passed into the circulating guide pipe 8-4 for recycling, and waste gas passes through the methanol isolation membrane 8-2 and flows out of the reaction device through the second outlet 7-3.

[0053] In the embodiment, the heat transfer structure is integrated in the pipe wall of the circulating pipe 8-4; the circulating pipe 8-4 and the circulating flow inlet are provided with a one-way nozzle.

[0054] The hydrogen production device body 3 is provided with a separation membrane at the rear end, the separation membrane and the circulating pipe constitute a circulating system, the methanol gas is recycled, and the heat utilization rate is improved.

[0055] In the embodiment, the heat transfer structure is integrated in the pipe wall of the circulating pipe 8-4; the circulating pipe 8-4 and the circulating flow inlet are provided with a one-way nozzle.

[0056] In the embodiment, the heat transfer structure is integrated in the pipe wall of the circulating pipe 8-4; the circulating pipe 8-4 and the circulating flow inlet are provided with a one-way nozzle.

[0057] In the embodiment, the heat transfer structure is integrated in the pipe wall of the circulating pipe 8-4; the circulating pipe 8-4 and the circulating flow inlet are provided with a one-way nozzle.

[0058] In the embodiment, the structure of the reforming reactor is generally sealed by welding. The catalyst in the reactor cannot be replaced, and the performance of the catalyst will decrease and the hydrogen production performance will decrease after a period of reaction. The carbon paper gasket and the dismounting port are added, and the cover screw is used for sealing, so that the reaction device is convenient to dismount and install, and the catalyst is convenient to replace. The carbon paper is added inside to flatten the catalyst and reduce the hydrogen escape. The carbon paper is added to increase the contact area of the catalyst and increase the hydrogen production. The design of the internal circulation system promotes the multi-stage utilization of the high-temperature gas and improves the heat utilization rate of the whole device.

[0059] In the embodiment, in order to improve the heat utilization rate of the device and increase the hydrogen production, the high-temperature gas separated in the palladium membrane separator is circulated into the fan to improve the heat utilization rate. The waste gas may contain carbon monoxide and water vapor. The water vapor conversion reactor can convert the carbon monoxide in the reaction product into hydrogen. The reaction waste gas is introduced into the water vapor conversion reactor to increase the hydrogen production.

[0060] The above only describes the preferred embodiments of the present application and is not used to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the present application is included in the protection scope of the present application.

Claims

1. A cyclic methanol combustion reforming hydrogen production integrated device, characterized in that, The application relates to a hydrogen production device, which comprises a hydrogen production device body, an air flow guide mechanism, a coupling combustion mechanism, a flow guide, a reforming hydrogen production mechanism and a separation membrane assembly which are sequentially arranged in the internal cavity of the hydrogen production device body from front to back. The air flow guide mechanism is provided with an air inlet and a circulating flow guide inlet. The coupling combustion mechanism is provided with a fuel gasification mechanism on both sides, the fuel gasification mechanism is communicated with the air flow guide mechanism through a fuel gasification pipeline, the flow guide is communicated with the coupling combustion mechanism. The reforming hydrogen production mechanism comprises a reforming chamber at the upper part and a heating chamber at the lower part, the heating chamber is communicated with the flow guide, the combustion waste gas enters the heating chamber through the flow guide, the heating chamber is provided with a reforming gasification mechanism, the reforming gasification mechanism is communicated with the reforming chamber through a reforming gasification pipeline, a plurality of detachable porous catalyst modules are arranged in the reforming chamber, and the separation membrane assembly is arranged between the reforming chamber and a gas outlet and used for selectively outputting hydrogen and waste gas and feeding unreacted methanol gas to the circulating pipeline to be circulated to the circulating flow guide inlet for recycling. The air flow guide mechanism comprises:

2. The cyclic methanol combustion reforming integrated device according to claim 1, wherein, a shell, one side of the shell being communicated with the air inlet and the other side being connected with the coupling combustion mechanism; a heat transfer inner container, the heat transfer inner container being arranged in the shell, and a fan blade being arranged at the center of the heat transfer inner container; a gas premixing chamber, the gas premixing chamber being arranged in the shell and at the lower side of the heat transfer inner container, the gas premixing chamber being communicated with the inlet side of the heat transfer inner container, and the fuel gasification pipeline being communicated with the gas premixing chamber; a pre-flow chamber, the pre-flow chamber being arranged between the shell and the coupling combustion mechanism, one end of the pre-flow chamber being communicated with the outlet side of the heat transfer inner container, and the other end of the pre-flow chamber being communicated with the coupling combustion mechanism. The fuel gasification pipeline is a serpentine bending channel, the coupling combustion mechanism is internally provided with a coupling combustor, the coupling combustor is filled with a coupling combustion catalyst, a high-temperature resistant coating is arranged between the coupling combustion catalyst and the coupling combustor, and the two side walls of the coupling combustor form a coupling combustion heat transfer piece for supplying heat to the fuel gasification mechanism.

3. The cyclic methanol combustion reforming integrated device according to claim 2, wherein The flow guide comprises:

4. The cyclic methanol combustion reforming integrated device according to claim 3, characterized in that, a flow guide piece, the flow guide piece being arranged on the side of the coupling combustor away from the pre-flow chamber and being communicated with the coupling combustor; a heat transfer piece, the heat transfer piece being arranged on the side of the flow guide piece away from the coupling combustor, and a plurality of openings being arranged at the lower end of the heat transfer piece and being communicated with the heating chamber. The reforming hydrogen production mechanism further comprises:

5. The cyclic methanol combustion reforming integrated device according to claim 4, characterized in that, a reforming premixing chamber, the reforming premixing chamber being arranged between the reforming chamber and the heat transfer piece, the outlet of the reforming gasification pipeline being communicated with the reforming premixing chamber, and the other end of the reforming premixing chamber being communicated with the reforming chamber. ​ The reforming guide vane is arranged in the reforming chamber and is located away from one side of the reforming pre-mixing chamber, the reforming guide vane and the reforming chamber side wall form a reforming isolation chamber, the isolation membrane assembly is arranged between the reforming isolation chamber and the gas outlet, and is used for selectively outputting hydrogen, waste gas and unreacted methanol gas to the circulating guide inlet to be circulated to the circulating guide inlet for recycling, and a plurality of detachable openings corresponding to the porous catalyst module are formed in the wall plate of the reforming chamber.

6. The cyclic methanol combustion reforming integrated device according to claim 5, wherein, The upper end of the air guide mechanism is provided with a first electric heater, and the upper end of the coupled combustion mechanism is provided with a second electric heater.

7. The cyclic methanol combustion reforming integrated device according to claim 6, characterized in that, The heating chamber is further provided with a reaction heater, which is used for heating the reforming gasification pipeline; the gasification inlet of the reforming gasification pipeline and the fuel gasification inlet of the fuel gasification pipeline are both nozzle structures formed on the side wall of the hydrogen production device body.

8. The cyclic methanol combustion reforming integrated device according to claim 5, wherein, The isolation membrane assembly comprises: A methanol isolation membrane is arranged in the reforming isolation chamber and located between the reforming isolation chamber and the first outlet, hydrogen directly passes through the methanol isolation membrane, is collected from the first outlet and is collected; A hydrogen isolation membrane is arranged between the reforming isolation chamber and the heating chamber, and unreacted methanol gas directly passes through the hydrogen isolation membrane and enters the lower heating chamber; A waste isolation membrane is arranged at the inlet of the circulating pipeline, all unreacted methanol gas is introduced into the circulating pipeline for recycling, a methanol isolation membrane is arranged between the heating chamber and the second outlet, waste gas passes through the methanol isolation membrane and flows out of the reaction device through the second outlet.

9. The cyclic methanol combustion reforming integrated device according to claim 1, wherein, The circulating pipeline is integrated with a heat transfer structure in the pipeline wall, and the circulating pipeline and the circulating guide inlet are provided with a one-way nozzle.

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