A long-acting hydrogen power generation device and system using high-temperature methanol reforming

Abstract

This invention discloses a high-temperature methanol reforming hydrogen production long-term power generation device and system, comprising a base, a reactor fixedly installed in the middle of the rear top of the base, and a water supply mechanism fixedly installed on one side of the top of the base. This solution utilizes a heat exchange tank and spiral heat-conducting coils to recover waste heat from the reactor tail gas, heating water to generate high-pressure steam, achieving cascade utilization of the tail gas waste heat. The steam drives a pulse pressure cleaning module to automatically clean the filter screen, and can also be depressurized and added to the reactor as reforming feedstock, reducing methanol fuel consumption and improving energy efficiency. The device is equipped with two-stage filtration boxes before and after desulfurization, progressively intercepting foreign impurities and desulfurization-generated particles in methanol, protecting the desulfurization packing and the catalyst inside the furnace, avoiding equipment blockage and reduced desulfurization efficiency. Overall, it reduces manual maintenance. The filter screen is removable, allowing for convenient external discharge of impurities. Combined with the furnace waste heat preheating the feedstock water, the entire unit can operate stably and efficiently for long-term power generation.

Description

Technical Field

[0001] This invention relates to the field of power generation equipment technology, and in particular to a high-temperature methanol reforming hydrogen production long-term power generation device and system. Background Technology

[0002] The methanol-to-hydrogen coupled fuel cell power generation device produces hydrogen through methanol steam reforming reaction, and then converts hydrogen into electricity through fuel cell. It is mostly used for stationary distributed power supply and energy supply operations in field scenarios without grid power. The entire device uses liquid raw materials as reaction feedstock and is equipped with an integrated structure of combustion heating, feedstock heat exchange, desulfurization and purification, and hydrogen power generation. It uses the waste heat of the furnace to preheat the feedstock water and is suitable for small and medium-sized normalized continuous power generation operations.

[0003] Chinese Patent CN221662609U discloses a methanol-to-hydrogen reaction power generation device, including a base plate on which a reactor for producing hydrogen through a steam reforming reaction of methanol is mounted. A fuel cell for converting the hydrogen produced in the reactor into electrical energy is also mounted on the base plate. This invention uses an external water supply device to deliver water to a water pipe, which then flows into a heating chamber. The heat generated by the combustion reaction in the furnace is transferred to the heating chamber to heat the water. The heated water then flows through an inlet pipe, is pressurized by a booster pump, and is pumped into a feed pipe as raw material. This allows the device to utilize the waste heat from the methanol steam reforming reaction to preheat the raw water, enabling it to quickly reach the reaction temperature upon entering the reaction components, thus increasing the reaction rate and improving energy utilization efficiency.

[0004] Under normal continuous operation, the integrated methanol-to-hydrogen power generation unit of this type lacks a complete waste heat utilization system and methanol purification and filtration system. The unit relies solely on the heat transfer from the furnace wall of the combustion furnace to preheat the feed water once. The high-temperature exhaust gas generated by the combustion furnace is directly emitted, carrying a large amount of high-temperature heat energy without any heat exchange structure. This direct heat loss results in low overall energy utilization. Furthermore, the methanol feed passage only has a single desulfurization structure without a supporting multi-stage filtration system. Sediment and rust particles from methanol storage and transportation directly enter the desulfurization structure. Internally, the accumulated wear and tear on the desulfurization packing material and blockage of the desulfurization flow channels continuously reduce the desulfurization efficiency. Furthermore, the powder generated by the wear of activated carbon and zinc oxide packing during the desulfurization operation, as well as the zinc sulfide solid particles generated by the sulfidation reaction, will be directly carried into the interior of the liquid raw materials after desulfurization and enter the reactor pipeline and cavity structure. Long-term operation will block the feed pipeline, gasification distribution holes and the surface of the reforming catalyst, resulting in a series of chain problems such as poor methanol feeding, reduced reforming reaction conversion rate, and wear and tear of equipment parts. The overall stability of the machine operation and the maintenance cycle cannot be guaranteed. Summary of the Invention

[0005] The purpose of this invention is to provide a high-temperature methanol reforming hydrogen production long-term power generation device and system to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides a high-temperature methanol reforming hydrogen production long-term power generation device, including a base, a reactor fixedly installed in the middle of the rear top of the base, a water adding mechanism fixedly installed on one side of the top of the base, a methanol adding mechanism fixedly installed on the front top of the base, and a fuel cell generator set fixedly installed on the rear top of the base away from the water adding mechanism. A reformed gas exhaust pipe is provided on one side of the reactor, and the output end of the reformed gas exhaust pipe is connected to the input end of the fuel cell generator set.

[0007] The water supply mechanism includes an exhaust pipe, an outer insulation ring, an exhaust waste heat utilization pulse steam pressurization module, and a water supply module. The exhaust pipe is fixedly installed at the exhaust end of the reactor. The outer insulation ring is fixedly connected to the outer surface of the reactor. The inner side of the outer insulation ring is provided with a built-in furnace body external residual heat heating chamber. The water supply module is fixedly installed on the side of the base away from the fuel cell generator set. The water supply module is connected to the built-in furnace body external residual heat heating chamber and the exhaust waste heat utilization pulse steam pressurization module. The exhaust waste heat utilization pulse steam pressurization module is fixedly installed at the output end of the exhaust pipe and is connected to the methanol addition mechanism.

[0008] Furthermore, a fuel feed pipe is fixedly installed at the bottom input end of the reactor, and a connecting flange is provided at the input end of the fuel feed pipe. The fuel cell generator set is integrated with a controller.

[0009] Furthermore, the water supply module includes a water supply pump and an inlet pipe. The water supply pump is screwed to the top of the base on the side away from the fuel cell generator set. The output end of the water supply pump is fixedly installed with an inlet tee pipe. The two output ends of the inlet tee pipe are respectively connected to the built-in furnace external residual heat heating chamber and the tail gas waste heat utilization pulse steam pressurization module. The inlet pipe is fixedly connected to the top side of the outer insulation ring. The input end of the inlet pipe is connected to the built-in furnace external residual heat heating chamber. The output end of the inlet pipe is connected to the reactor. The input end of the water supply pump is provided with an external water supply pipe, and the input end of the external water supply pipe is also provided with a connecting flange.

[0010] Furthermore, the waste heat utilization pulse steam pressurization module for exhaust gas includes a heat exchange module and a steam pulse release module. The heat exchange module is fixedly connected to the output end of the exhaust gas discharge pipe, and the steam pulse release module is fixedly connected to the top of the heat exchange module.

[0011] Furthermore, the heat exchange module includes a heat exchange tank, which is fixedly installed at the output end of the exhaust pipe. A heat-conducting coil is fixedly installed on the inner side of the heat exchange tank. The input end of the heat-conducting coil is connected to the output end of the exhaust pipe. The heat-conducting coil is arranged in a spiral shape. An exhaust gas exhaust pipe is fixedly installed at the output end of the heat exchange tank. The input end of the exhaust gas exhaust pipe is connected to the output end of the heat-conducting coil. A connecting flange is also provided at the outer end of the exhaust gas exhaust pipe.

[0012] Furthermore, the steam pulse release module includes a pressure storage tank, which is fixedly installed on the top of the heat exchange tank. The bottom of the pressure storage tank is connected to the inside of the heat exchange tank. The input end of the pressure storage tank is connected to the other output end of the water inlet tee pipe away from the reactor. A pressure supply tee pipe is fixedly installed on the output end of the pressure storage tank and is connected to the top of the methanol addition mechanism. A pressure release pipe is fixedly installed on the top of the pressure storage tank, and the output end of the pressure release pipe is connected to the inside of the reactor.

[0013] Furthermore, the methanol addition mechanism includes a desulfurization device, which is fixedly installed on the top front side of the base. Filter modules are installed at both the input and output ends of the desulfurization device. A methanol addition pipe is fixedly installed at the outer end of the filter module at the input end, and a connecting conveying pipe is provided at the output end of the filter module at the output end. The connecting conveying pipe is connected to the reactor. A connecting flange is also provided at the input end of the methanol addition pipe. A pulse pressure cleaning module is fixedly installed on the top of each filter module. The input end of the pulse pressure cleaning module is connected to the two output ends of a pressure supply tee pipe. The bottom cleaning end of the pressure supply tee pipe is located at the... Inside the filter module, the filter pore size of the output filter module is smaller than that of the input filter module. The input filter module is used for coarse filtration of the liquid methanol material, while the output filter module is used for fine filtration of the desulfurized methanol material. This is because during the desulfurization process, some debris easily peels off from the desulfurization adsorbent material. The continuous flushing of the liquid raw material with granular zinc oxide and activated carbon adsorbent will generate a large amount of fine powder over long-term operation. H2S in methanol reacts with ZnO to form ZnS solid particles, which are suspended in the methanol liquid. All of these will affect subsequent treatment. Therefore, coarse filtration is required before desulfurization and fine filtration is required after desulfurization.

[0014] Furthermore, the filter module includes a filter box, which is fixedly installed at the input and output ends of the desulfurization unit. The methanol addition pipe is fixedly installed on the outside of the filter box at the input end of the desulfurization unit, and the connecting conveying pipe is fixedly installed on the outside of the filter box at the output end of the desulfurization unit. A filter screen mounting groove is provided in the middle of the filter box, and a filter screen is detachably installed inside the groove. A sealing plate is fixedly connected to the top of the filter screen, and side fixing plates are fixedly installed at both ends of the bottom of the sealing plate. A limit screw is threadedly connected to the bottom end of the side fixing plate. The end of the filter box is threadedly connected to the side fixing plate and the outside of the filter box. The bottom of the filter box is located below the filter screen and has a collection box. The top of the collection box is connected to the inside of the filter box. A sealing cap is threadedly connected to the lower end of the collection box. A connecting rod is rotatably connected to the rear side of the sealing cap. A scraper is fixedly connected to the outer end of the connecting rod. The surface of the scraper is in contact with the inner wall of the collection box. During use, the front opening of the collection box is opened by twisting the sealing cap. Then, by pulling the sealing cap, the connecting rod can be pulled forward to move the cleaning scraper, thereby discharging the cleaning impurities collected inside the collection box.

[0015] Furthermore, the pulse pressure cleaning module includes a piston tube, which is fixedly installed on the top of the filter box near the input end of the filter box. The bottom of the piston tube is connected to the filter surface of the filter screen inside the filter box. A piston plate is slidably connected inside the piston tube. The top of the piston tube is connected to the output end of the pressure supply tee. A return spring is fixedly connected to the bottom of the piston plate. The bottom of the return spring is fixedly connected to the bottom of the piston tube. A push-pull shaft is fixedly installed at the bottom of the piston plate. The bottom output end of the push-pull shaft extends into the filter box and a cleaning plate is fixedly installed. The cleaning surface of the cleaning plate is in contact with the filter surface of the filter screen. The cleaning plate is composed of any one of a scraper, a scraper blade, a metal brush, or a bristle brush.

[0016] A control system for long-term hydrogen production from high-temperature methanol reforming includes a control module, a high-temperature steam pressure sensor, a first on / off switching module, a liquid level sensor, a second on / off switching module, and a third on / off switching module. The first on / off switching module is located at the connection between the inlet pipe and the reactor. The second on / off switching module is located at the connection between the inlet tee pipe and the pressure storage tank. The third on / off switching module is located at the connection between the pressure storage tank and the pressure release pipe. The first, second, and third on / off switching modules are all composed of electromagnetic on / off valves. The bottom pressure measuring end of the high-temperature steam pressure sensor is located inside the pressure storage tank. The control module is located in the controller of the fuel cell generator set. The control module is electrically connected to the high-temperature steam pressure sensor, the second on / off switching module, the third on / off switching module, the water supply pump, and the fuel cell generator set. The liquid level sensor is located inside the pressure storage tank.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] Firstly, this invention utilizes a heat exchange tank and heat-conducting coil structure to recover the high-temperature heat energy carried by the reactor exhaust gas. The water inside the heat exchange tank is heated to generate high-pressure steam, effectively utilizing the waste heat from the exhaust gas that would otherwise be directly discharged. This solves the problem of existing methanol-to-hydrogen power generation units lacking a waste heat recovery structure and resulting in energy waste. The recovered waste heat is converted into high-pressure steam power to drive the pulse pressure cleaning module for automatic filter cleaning. Furthermore, excess steam is used to supplement the reactor as a reforming reaction feedstock, achieving cascade utilization of waste heat, reducing the overall methanol combustion heating consumption, and improving overall energy efficiency.

[0019] Secondly, in this invention, the technical solution sets up filter boxes at both the input and output ends of the desulfurization unit, forming a two-stage filtration and protection system. The input filter box performs coarse filtration of methanol, intercepting foreign solid impurities brought in during storage and transportation, preventing large particles from entering the desulfurization unit and eroding the adsorption packing, clogging the desulfurization flow channel, and stabilizing the processing efficiency of the desulfurization unit. The output filter box performs precision filtration of the methanol after desulfurization, retaining the packing powder and zinc sulfide solid particles generated in the desulfurization process, preventing solid impurities from entering the pipelines, gasification chamber, and reforming chamber inside the reactor with the methanol, and preventing impurities from clogging the feed channel, gasification distribution holes, and covering the catalyst surface. This solves the defects of existing units that lack a graded filtration structure and are prone to causing a decrease in desulfurization efficiency and a chain reaction of equipment blockage caused by impurities, thus extending the continuous operation time of the equipment.

[0020] Thirdly, in this invention, the technical solution relies on high-pressure steam generated from the waste heat of the exhaust gas to drive the pulse pressure cleaning module to clean impurities on the filter screen surface in an intermittent pulse manner. No additional electric drive mechanism is required, and the cleaning process is automatically linked with the steam pressurization process. The cleaning plate reciprocates and slides to peel away the scale accumulated on the filter screen surface, and the collection box collects the impurities, maintaining the filter screen's flow performance for a long time. Frequent shutdowns for manual cleaning of the filter screen are unnecessary, reducing equipment maintenance frequency and workload. This adapts to the long-term continuous operation requirements of the device, correspondingly improving the continuity of the entire power generation operation.

[0021] Fourthly, in this invention, the technical solution automatically controls the entire process of water replenishment, steam pressurization, pulse cleaning, and steam reuse by linking a control module with a high-temperature steam pressure sensor, a liquid level sensor, and three sets of on / off switching modules. No manual intervention is required, making it suitable for unattended continuous operation. An external insulation ring surrounds the reactor, forming a residual heat heating chamber outside the reactor to recover heat dissipated from the reactor body and preheat the raw material water. This also reduces heat loss from the reactor body to the external environment, further minimizing heat loss. The scraper and sealing cap structure of the collection box allow for internal impurity cleaning without disassembling the entire filter box, simplifying maintenance and reducing on-site operation time. The filter screen uses a detachable installation structure, flexibly adapting to different filtration precision requirements and facilitating replacement after screen wear. Attached Figure Description

[0022] Figure 1 This is an overall schematic diagram of the present invention;

[0023] Figure 2 This is a side view diagram of the structure in this invention.

[0024] Figure 3 This is a schematic diagram of the rear structure in this invention;

[0025] Figure 4 This is a schematic diagram of the water filling mechanism and its internal structure in the pressure storage tank of the present invention.

[0026] Figure 5 This is a schematic diagram of the overall structure of the methanol addition mechanism in this invention;

[0027] Figure 6 This is a schematic diagram of the methanol addition mechanism in the present invention in its split state.

[0028] Figure 7 This is a schematic diagram of the internal structure of the filter box and piston tube in this invention;

[0029] Figure 8 This is a system module diagram of the present invention.

[0030] In the diagram: 1. Base; 2. Reactor; 3. Water supply mechanism; 31. Tail gas discharge pipe; 32. External insulation ring; 33. Tail gas waste heat utilization pulse steam pressurization module; 331. Heat exchange module; 3311. Heat exchange tank; 3312. Heat transfer coil; 3313. Tail gas discharge outer pipe; 332. Steam pulse release module; 3321. Pressure storage tank; 3322. Pressure supply tee pipe; 3323. Pressure release pipe; 3224. High-temperature steam pressure sensor; 3225. Second on / off switching module; 3226. Third on / off switching module; 34. Water supply module; 341. Water supply pump; 342. Connecting pipe; 343. Water inlet tee pipe; 344. External... 345. Water supply pipe; 4. First on / off switching module; 5. Fuel cell generator set; 6. Reformer gas exhaust pipe; 7. Methanol addition mechanism; 8. Desulfurization device; 9. Filter module; 10. Filter box; 11. Filter screen mounting slot; 12. Filter screen; 13. Sealing plate; 14. Side fixing plate; 15. Limiting screw; 16. Collection box; 17. Sealing cap; 18. Connecting rod; 19. Scraper; 20. Methanol addition pipe; 21. Connecting conveying pipe; 22. Pulse pressure cleaning module; 23. Piston tube; 34. Piston plate; 45. Return spring; 56. Push-pull shaft; 77. Cleaning plate; 88. Fuel feed pipe. Detailed Implementation

[0031] Example

[0032] Please see Figures 1-8 In this embodiment of the invention, a high-temperature methanol reforming hydrogen production long-term power generation device includes a base 1, a reactor 2 fixedly installed in the middle of the rear top of the base 1, a water adding mechanism 3 fixedly installed on one side of the top of the base 1, a methanol adding mechanism 6 fixedly installed on the front top of the base 1, and a fuel cell generator set 4 fixedly installed on the rear top of the base 1 away from the water adding mechanism 3. A reformed gas exhaust pipe 5 is provided on one side of the reactor 2, and the output end of the reformed gas exhaust pipe 5 is connected to the input end of the fuel cell generator set 4.

[0033] The water supply mechanism 3 includes an exhaust pipe 31, an outer insulation ring 32, an exhaust waste heat utilization pulse steam pressurization module 33, and a water supply module 34. The exhaust pipe 31 is fixedly installed at the exhaust end of the reactor 2. The outer insulation ring 32 is fixedly connected to the outer surface of the reactor 2. The inner side of the outer insulation ring 32 is provided with a built-in furnace body external waste heat heating chamber. The water supply module 34 is fixedly installed on the side of the base 1 away from the fuel cell generator set 4. The water supply module 34 is connected to the built-in furnace body external waste heat heating chamber and the exhaust pipe 34. The waste heat recovery module 33 is connected to the pulse steam pressurization module 33, which is fixedly installed at the output end of the exhaust pipe 31. The waste heat recovery module 33 is also connected to the methanol addition mechanism 6. During the operation of this device, the water supply module 34 can divert and deliver water, with a portion of the water flowing into the internal residual heat heating chamber outside the furnace body, where it is directly heated by the heat emitted from the operation of the reactor 2. The water body is preheated to a higher temperature before being fed into the reactor 2. This reduces the energy consumption required for heating the water in the reactor 2 and accelerates the reforming reaction between methanol and water. Another portion of the water is fed into the waste heat utilization pulse steam pressurization module 33. The exhaust gas generated by the reactor 2 is introduced into the waste heat utilization pulse steam pressurization module 33 through the exhaust gas discharge pipe 31. The waste heat of the exhaust gas is used to heat the water and generate pressurized steam. The pressurized steam can be connected to the methanol addition mechanism 6 for linkage operation. The waste heat of the exhaust gas is used to complete the secondary energy utilization and reduce the external energy consumption of the device. At the same time, after the reactor 2 produces reformed gas, the reformed gas can be directly transported to the fuel cell generator set 4 through the reformed gas discharge pipe 5. This can directly complete the hydrogen energy conversion and power generation operation, simplifying the hydrogen energy power transmission process. The outer insulation ring 32 covers the outer wall of the reactor 2, which can prevent the furnace body heat from being directly lost to the outside and retain more furnace body heat to supply the internal furnace body external waste heat heating chamber for heat exchange, further improving the furnace body waste heat utilization rate.

[0034] Please see Figures 1-5 A fuel feed pipe 7 is fixedly installed at the bottom input end of the reactor 2, and a connecting flange is provided at the input end of the fuel feed pipe 7. The fuel cell generator set 4 is integrated with a controller. During the application of this device, by setting the fuel feed pipe 7 at the bottom input end of the reactor 2, the external methanol delivery pipeline can be quickly connected by means of the connecting flange at the end of the fuel feed pipe 7, which simplifies the assembly process of delivering methanol fuel into the reactor 2. The fuel cell generator set 4 is equipped with an integrated controller, which can be used to complete the unified control of the medium delivery process of each channel of the device.

[0035] Please see Figures 1-5The water supply module 34 includes a water supply pump 341 and an inlet pipe 342. The water supply pump 341 is screwed to the top of the base on the side away from the fuel cell generator set 4. The output end of the water supply pump 341 is fixedly installed with an inlet tee pipe 343. The two output ends of the inlet tee pipe 343 are respectively connected to the built-in furnace external residual heat heating chamber and the tail gas waste heat utilization pulse steam pressurization module 33. The inlet pipe 342 is fixedly connected to the top side of the outer insulation ring 32. The input end of the inlet pipe 342 is connected to the built-in furnace external residual heat heating chamber, and the output end of the inlet pipe 342 is connected to the reactor 2. The input end of the water supply pump 341 is provided with an external water supply pipe 344, and this external water supply... The input end of pipe 344 is also equipped with a connecting flange. During the application of this device, the water supply module 34 is set up to complete the water supply operation of the whole machine. When in use, the external water supply pipe 344 at the input end of the water supply pump 341 connects to the external water supply pipeline through the end connecting flange, which can easily complete the water source connection operation. After the water supply pump 341 draws water, it is divided into two paths through the inlet tee pipe 343. One path of water is sent into the internal furnace body waste heat heating chamber to receive the waste heat of the furnace body for heating. The heated water is sent into the reactor 2 through the inlet pipe 342 to serve as reforming raw material. The other path of water is sent into the tail gas waste heat and uses the pulse steam pressurization module 33 to receive the tail gas waste heat for heating, thereby improving the waste heat recovery effect.

[0036] Please see Figures 4-8 The waste heat utilization pulse steam pressurization module 33 includes a heat exchange module 331 and a steam pulse release module 332. The heat exchange module 331 is fixedly connected to the output end of the exhaust pipe 31, and the steam pulse release module 332 is fixedly connected to the top of the heat exchange module 331. During the application of this device, by splitting the waste heat utilization pulse steam pressurization module 33 into two independent structures, the heat exchange module 331 and the steam pulse release module 332, the exhaust gas is first completely passed into the heat exchange module 331 to complete the heat exchange operation. The heat exchange module 331 receives the high-temperature heat carried by the exhaust gas to complete the water heating. The steam generated by heating is directly transported upward to the steam pulse release module 332 at the top for storage and accumulation. The two-section structure is arranged vertically to separately complete the two processes of heat absorption and steam storage, which can prevent the high-temperature water vapor generated by heat exchange from being directly lost to the outside, and completely retain the high-pressure steam generated by exhaust gas heat exchange for subsequent processes.

[0037] Please see Figures 4-7The heat exchange module 331 includes a heat exchange tank 3311, which is fixedly installed at the output end of the exhaust pipe 31. A heat-conducting coil 3312 is fixedly installed inside the heat exchange tank 3311. The input end of the heat-conducting coil 3312 is connected to the output end of the exhaust pipe 31. The heat-conducting coil 3312 is arranged in a spiral shape. An exhaust gas discharge pipe 3313 is fixedly installed at the output end of the heat exchange tank 3311. The input end of the exhaust gas discharge pipe 3313 is connected to the output end of the heat-conducting coil 3312. A connecting flange is also provided at the outer end of the exhaust gas discharge pipe 3313. During the application of this device, it is connected by the heat exchange... The heat module 331 is equipped with a spiral heat-conducting coil 3312, which allows the high-temperature exhaust gas discharged from the reactor 2 to flow into the heat-conducting coil 3312 through the exhaust gas discharge pipe 31 during use. The spiral arrangement of the coil can increase the heat exchange area of ​​the exhaust gas, maximizing the transfer of heat from the exhaust gas to the water inside the heat exchange tank 3311, fully extracting the waste heat of the exhaust gas. After heat exchange and cooling, the exhaust gas can be discharged outward through the heat-conducting coil 3312 and the exhaust gas discharge outer pipe 3313. The connecting flange at the end of the exhaust gas discharge outer pipe 3313 can be connected to the exhaust gas treatment pipeline, which can be conveniently connected to the downstream exhaust gas treatment structure, improving the convenience of exhaust gas layout and connection.

[0038] Please see Figures 4-8 The steam pulse release module 332 includes a pressure storage tank 3321, which is fixedly installed on the top of the heat exchange tank 3311. The bottom of the pressure storage tank 3321 is connected to the inside of the heat exchange tank 3311. The input end of the pressure storage tank 3321 is connected to the other output end of the water inlet tee pipe 343 away from the reactor 2. A pressure supply tee pipe 3322 is fixedly installed on the output end of the pressure storage tank 3321 and is connected to the top of the methanol addition mechanism 6. A pressure release pipe 3323 is fixedly installed on the top of the pressure storage tank 3321 and is connected to the inside of the reactor 2. During the application of this device, by connecting the pressure storage tank 3321 to the top of the heat exchange tank 3311, the water inlet tee pipe 343 is connected to the top of the reactor 2. Water can be supplied to the pressure storage tank 3321 independently. The pressure storage tank 3321 is interconnected with the heat exchange tank 3311. After the water in the heat exchange tank 3311 is heated and vaporized, it can directly enter the pressure storage tank 3321 to accumulate pressure and stably accumulate high-pressure steam. The high-pressure steam accumulated in the pressure storage tank 3321 can be transported to the methanol addition mechanism 6 through the pressure supply tee pipe 3322, which can provide stable steam power for the internal cleaning structure of the methanol addition mechanism 6. The pressure release pipe 3323 connected to the top of the pressure storage tank 3321 can be connected to the inside of the reactor 2. After the pressure in the pressure storage tank 3321 reaches the standard, the excess high-pressure steam can be released and sent into the reactor 2 as a reforming reaction raw material. The steam flow can be reasonably distributed to simultaneously meet the two usage needs of filter cleaning and furnace steam replenishment.

[0039] Please see Figures 5-8 The methanol addition mechanism 6 includes a desulfurization device 61, which is fixedly installed on the top front side of the base 1. Filter modules 62 are installed at both the input and output ends of the desulfurization device 61. A methanol addition pipe 63 is fixedly installed at the outer end of the filter module 62 at the input end, and a connecting conveying pipe 64 is provided at the output end of the filter module 62 at the output end. The connecting conveying pipe 64 is connected to the reactor 2. A connecting flange is also provided at the input end of the methanol addition pipe 63. A pulse pressure cleaning module 65 is fixedly installed on the top of each filter module 62. The input end of the pulse pressure cleaning module 65 is connected to the two output ends of the pressure supply tee pipe 3322. The bottom cleaning end of the pressure supply tee pipe 3322 is located inside the filter module 62. During the operation of this device, its flow... By installing filter modules 62 at both ends of the desulfurization unit 61, during use, the methanol addition pipe 63 can quickly complete the liquid methanol feeding connection by connecting the methanol supply pipeline to the external methanol supply pipeline through the end connection flange. The liquid methanol is first pretreated by the input end filter module 62 and then sent into the desulfurization unit 61 for desulfurization. After desulfurization, the liquid methanol is then filtered a second time by the output end filter module 62. The filtered clean methanol is transported to the reactor 2 through the connecting conveying pipe 64 to participate in the reforming reaction. The pressure supply tee pipe 3322 splits into two steam lines to connect to two sets of pulse pressure cleaning modules 65 respectively, which can independently provide steam power for the two filter modules 62. It can selectively clean impurities from the input end and the output end filter modules 62 respectively, ensuring that the methanol feeding path is unobstructed throughout the process.

[0040] Please see Figures 5-8The filter module 62 includes a filter box 621, which is fixedly installed at the input and output ends of the desulfurization unit 61. A methanol addition pipe 63 is fixedly installed on the outside of the filter box 621 at the input end of the desulfurization unit 61. A connecting conveying pipe 64 is fixedly installed on the outside of the filter box 621 at the output end of the desulfurization unit 61. A filter screen mounting groove 622 is provided in the middle of the filter box 621. A filter screen 623 is detachably installed inside the filter screen mounting groove 622. A sealing plate 624 is fixedly connected to the top of the filter screen 623. The bottom of the sealing plate 624 has two... Each end is fixedly installed with a side fixing plate 625. The bottom end of the side fixing plate 625 is threadedly connected to a limit screw 626. The end of the limit screw 626 passes through the side fixing plate 625 and is threadedly connected to the outside of the filter box 621. The bottom of the filter box 621 is provided with a collection box 627 located below the filter surface of the filter screen 623. The top of the collection box 627 is connected to the inside of the filter box 621. A sealing cap 628 is threadedly connected to one side of the lower end of the collection box 627. A connecting rod 629 is rotatably connected to the rear side of the sealing cap 628. A scraper is fixedly connected to the outer end of the connecting rod 629. 6210, the surface of the scraper 6210 is attached to the inner wall of the collection box 627. During the application of this device, it is composed of a filter module 62 by setting a split structure, so that the filter screen 623 can be embedded in the filter screen placement groove 622 to complete the positioning filtration operation. The sealing plate 624 blocks the top opening of the filter box 621, which can prevent external debris from entering the filter box 621 and contaminating the methanol fluid. The side fixing plate 625, together with the limiting screw 626, locks and fixes the sealing plate 624 and the filter screen 623, which can stabilize the working position of the filter screen 623. The filter screen 623 can be removed by unscrewing the limit screw 626, which allows for convenient filter screen maintenance and replacement. The impurities scraped off by the filter screen can fall directly into the collection box 627 connected below for centralized storage. The sealing cap 628 closes the slag discharge position of the collection box 627, which can ensure that the filter box 621 is sealed and leak-proof. After removing the sealing cap 628, the sealing cap 628 can be pulled to drive the connecting rod 629 to slide the scraper 6210 along the inner wall of the collection box 627, which can directly scrape off the impurities accumulated on the inner wall of the collection box 627, making it convenient for personnel to complete the slag discharge operation on the spot.

[0041] Please see Figures 6-8The pulse pressure cleaning module 65 includes a piston tube 651, which is fixedly installed on the top of the filter box 621 near the input end of the filter box 621. The bottom of the piston tube 651 is connected to the filter surface of the filter screen 623 inside the filter box 621. A piston plate 652 is slidably connected inside the piston tube 651. The top of the piston tube 651 is connected to the output end of the pressure supply tee pipe 3322. A return spring 653 is fixedly connected to the bottom of the piston plate 652. The bottom of the return spring 653 is fixedly connected to the bottom of the piston tube 651. A push-pull shaft 654 is fixedly installed at the bottom of the piston plate 652. The bottom output end of the push-pull shaft 654 extends into the filter box 621 and a cleaning plate 655 is fixedly installed thereon. The cleaning surface of the cleaning plate 655 is in contact with the filter surface of the filter screen 623. During application, by assembling a pulse pressure cleaning module 65 on the top of the filter box 621, high-pressure steam is continuously supplied to the top of the piston tube 651 through the pressure supply tee 3322. The steam pressure pushes the piston plate 652 downward to compress the return spring 653. The piston plate 652 simultaneously drives the push-pull shaft 654 and the cleaning plate 655 to slide downward against the filter screen surface, which can directly scrape off the solid impurities attached to the surface of the filter screen 623. After the steam inside the pressure storage box 3321 is depressurized, the return spring 653 rebounds and drives the piston plate 652, push-pull shaft 654 and cleaning plate 655 to return upward, waiting for the next round of high-pressure steam input to complete the scraping operation again. The entire process relies on steam pressure and spring force to complete the reciprocating motion of the cleaning plate 655, which can continuously maintain the flow channel of the filter screen 623.

[0042] A high-temperature methanol reforming hydrogen production long-term power generation device and system includes a control module, a high-temperature steam pressure sensor 3224, a first on / off switching module 345, a liquid level sensor, a second on / off switching module 3225, and a third on / off switching module 3226. The first on / off switching module 345 is located at the connection between the inlet pipe 342 and the reactor 2. The second on / off switching module 3225 is located at the connection between the inlet tee pipe 343 and the pressure storage tank 3321. The third on / off switching module 3226 is located between the pressure storage tank 3321 and the pressure relief pipe 3323. At the connection point, the first on / off switching module 345, the second on / off switching module 3225, and the third on / off switching module 3226 are all composed of electromagnetic on / off switching valves. The bottom pressure measuring end of the high-temperature steam pressure sensor 3224 is located inside the pressure storage tank 3321. The control module is located in the controller of the fuel cell generator set 4. The control module is electrically connected to the high-temperature steam pressure sensor 3224, the second on / off switching module 3225, the third on / off switching module 3226, the water supply pump 341, and the fuel cell generator set 4. The connection is made so that the liquid level sensor is located inside the pressure tank 3321. During the application of this device, it forms a complete control system through the control module and various sensors and on / off components. This allows the high-temperature steam pressure sensor 3224 and the liquid level sensor installed inside the pressure tank 3321 to collect real-time data on the steam pressure and water level in the chamber. The data is transmitted to the control module integrated into the controller of the fuel cell generator set 4. The control module regulates the on / off switching module composed of three electromagnetic on / off valves based on the collected data. The second on / off... The switching module 3225 controls the passage of water from the inlet tee pipe 343 to the pressure tank 3321. When the liquid level is low, the passage can be opened to replenish water. The first switching module 345 controls the flow rate of preheated raw material water sent to the reactor 2 through the inlet pipe 342. The third switching module 3226 controls the passage of excess high-pressure steam from the pressure release pipe 3323 to the reactor 2. The control module synchronously controls the operation and start-up of the water supply pump 341 and the fuel cell generator set 4, and can synchronously coordinate the operation rhythm of the entire process of water supply, pressure storage, steam replenishment and power generation.

[0043] The working principle of this invention is as follows: During application, the water supply pump 341 draws external water through the external water supply pipe 344. The water is divided into two streams via the inlet tee pipe 343. The first stream of water is controlled by the first on / off switching module 345 and transported to the internal residual heat heating chamber of the built-in furnace body inside the outer insulation ring 32. The heat conducted outward during the operation of the reactor 2 is transferred to the internal residual heat heating chamber of the built-in furnace body to preheat the water in the chamber. The heated water is then transported to the interior of the reactor 2 through the inlet pipe 342 as methanol heavy metal. The raw material water for the entire reaction is supplied to the pressure storage tank 3321 through the second on / off switching module 3225, which controls the flow of the water. This water serves as the water supply medium for the waste heat recovery and pressure storage system. The pressure storage tank 3321 is equipped with a liquid level sensor to detect the liquid level in the chamber in real time. When the liquid level drops to the set lower limit, the control module controls the second on / off switching module 3225 to open and replenish the pressure storage tank 3321 with water. When the liquid level rises to the set upper limit, the second on / off switching module 3225 closes and stops replenishing the water.

[0044] Liquid raw materials are transported to the filter box 621 at the input end of the desulfurization unit 61 through the methanol addition pipe 63. When the liquid raw materials flow through the filter screen 623, the filter screen 623 intercepts large solid impurities such as mud, sand, and metal rust particles carried by the methanol fluid, completing the coarse filtration treatment. The coarsely filtered liquid raw materials enter the desulfurization unit 61. The adsorption packing material filled inside the desulfurization unit 61 reacts with the sulfides in the methanol, and at the same time adsorbs and removes dissolved organic sulfur impurities in the methanol, completing the desulfurization and purification. The desulfurized liquid raw materials are transported to the filter box 621 at the output end of the desulfurization unit 61. The filter pore size of the filter screen 623 in the filter box 621 is smaller than that of the filter screen 623 at the input end. When the liquid raw materials flow through the filter screen 623, the packing powder that falls off during the desulfurization process and the zinc sulfide solid particles generated by the sulfidation reaction are intercepted, completing the precision filtration. The clean liquid raw materials after two-stage filtration and desulfurization treatment are transported to the reactor 2 through the connecting conveying pipe 64.

[0045] Clean liquid raw materials and preheated raw water are mixed at the feed end of reactor 2 to form a methanol-water mixture. The mixture enters the vaporization chamber inside reactor 2, absorbs heat from the furnace, and completes vaporization to form a methanol-water vapor mixture. The mixture flows through the heat exchange chamber and the reforming chamber in sequence. Under the action of the catalyst in the reforming chamber, methanol and water vapor undergo a steam reforming reaction to generate reformed gas containing hydrogen and carbon dioxide. The reformed gas is transported to the fuel cell generator set 4 through the reformed gas exhaust pipe 5. The hydrogen in the reformed gas participates in the electrochemical reaction in the fuel cell, converting chemical energy into electrical energy for external output.

[0046] The high-temperature exhaust gas generated by methanol combustion in reactor 2 is transported through exhaust gas discharge pipe 31 to the heat-conducting coil 3312 inside the heat exchange tank 3311. The heat-conducting coil 3312 is spirally arranged and has a large heat exchange surface area. During the flow of the exhaust gas inside the coil, the high-temperature heat carried is transferred through the coil wall to the water inside the heat exchange tank 3311. After heat exchange, the low-temperature exhaust gas is discharged to the outside through exhaust gas discharge pipe 3313. The heat exchange tank 3311 is connected to the pressure storage tank 3321 at the top. After absorbing the heat of the exhaust gas, the water continuously evaporates to produce water vapor. The water vapor rises into the sealed pressure storage tank 3321. As heat exchange continues, the steam pressure inside the pressure storage tank 3321 and the heat exchange tank 3311 gradually increases. A high-temperature steam pressure sensor 3224 is installed at the top of the pressure storage tank 3321 to collect the steam pressure value inside the chamber in real time and transmit it to the control module.

[0047] High-pressure steam is delivered to the pulse pressure cleaning module 65 at the top of the two filter boxes 621. The high-pressure steam enters the top chamber of the piston tube 651, pushing the piston plate 652 downward. The piston plate 652 compresses the return spring 653 to contract, and at the same time drives the push-pull shaft 654 to move downward synchronously. The cleaning plate 655 at the bottom of the push-pull shaft 654 slides downward against the surface of the filter screen 623, peeling off the solid impurities accumulated on the surface of the filter screen 623. Simultaneously, when the steam pressure inside the pressure storage tank 3321 rises to the set upper limit value, the control module controls the corresponding passage of the pressure supply three-way pipe 3322 to open. The control module controls the third on / off switching module 3226 to open. The excess high-pressure steam inside the pressure storage tank 3321 is delivered to the reactor 2 through the pressure release pipe 3323 as supplementary steam feedstock for the methanol reforming reaction.

[0048] As high-pressure steam is released, the steam pressure inside the pressure storage tank 3321 gradually decreases. When the pressure drops to the set lower limit, the return spring 653 rebounds and resets, pushing the piston plate 652 upward. Simultaneously, the push-pull shaft 654 and the cleaning plate 655 move upward and reset. At the same time, the control module controls the third on / off switching module 3226 to close, cutting off the steam passage of the pressure release pipe 3323. The heat exchange tank 3311 and the pressure storage tank 3321 re-enter the steam accumulation process. When the pressure rises to the upper limit again, the above process of steam release, filter cleaning, and steam replenishment to the reactor 2 is repeated, forming an intermittent pulse-type cleaning and steam supply mode.

[0049] Solid impurities detached from the surface of the filter screen 623 by the cleaning plate 655 settle downwards under gravity and fall into the collection box 627 at the bottom of the filter box 621 for storage. When it is necessary to clean the impurities accumulated inside the collection box 627, twist the sealing cap 628 to remove it from the end of the collection box 627. Pull the sealing cap 628 outwards, which will drive the connecting rod 629 to move outwards in sync. The scraper plate 6210 at the end of the connecting rod 629 slides against the inner wall of the collection box 627, cleaning the box. Solid impurities accumulated inside are pushed to the opening for discharge. After cleaning, push the sealing cap 628 to reset and tighten the seal. When the filter screen 623 needs to be replaced, unscrew the limiting screw 626 to release the connection between the side fixing plate 625 and the filter box 621. Pull the sealing plate 624 upward to pull the filter screen 623 out of the filter screen placement groove 622 to complete the replacement or maintenance operation. After replacement, put the filter screen 623 into the groove and tighten the limiting screw 626 to complete the fixation.

Claims

1. A high-temperature methanol reforming hydrogen production long-term power generation device, characterized in that, The system includes a base (1), a reactor (2) is fixedly installed on the middle of the rear side of the top of the base (1), a water adding mechanism (3) is fixedly installed on one side of the top of the base (1), a methanol adding mechanism (6) is fixedly installed on the front side of the top of the base (1), and a fuel cell generator set (4) is fixedly installed on the rear side of the top of the base (1) away from the water adding mechanism (3). A reforming gas discharge pipe (5) is provided on one side of the reactor (2), and the output end of the reforming gas discharge pipe (5) is connected to the input end of the fuel cell generator set (4). The water supply mechanism (3) includes a tail gas discharge pipe (31), an outer heat insulation ring (32), a tail gas waste heat utilization pulse steam pressurization module (33), and a water supply module (34). The tail gas discharge pipe (31) is fixedly installed at the tail gas discharge end of the reactor (2). The outer heat insulation ring (32) is fixedly connected to the outer surface of the reactor (2). The inner side of the outer heat insulation ring (32) is provided with a built-in furnace body external waste heat heating chamber. The water supply module (34) is fixedly installed on the side of the base (1) away from the fuel cell generator set (4). The water supply module (34) is connected to the built-in furnace body external waste heat heating chamber and the tail gas waste heat utilization pulse steam pressurization module (33). The tail gas waste heat utilization pulse steam pressurization module (33) is fixedly installed at the output end of the tail gas discharge pipe (31). The tail gas waste heat utilization pulse steam pressurization module (33) is connected to the methanol addition mechanism (6).

2. The high-temperature methanol reforming hydrogen production long-term power generation device according to claim 1, characterized in that, The bottom input end of the reactor (2) is fixedly equipped with a fuel feed pipe (7), and the input end of the fuel feed pipe (7) is provided with a connecting flange. The fuel cell generator set (4) is integrated with a controller.

3. The high-temperature methanol reforming hydrogen production long-term power generation device according to claim 1, characterized in that, The water supply module (34) includes a water supply pump (341) and an inlet pipe (342). The water supply pump (341) is installed on the top of the base away from the fuel cell generator set (4) by screws. The output end of the water supply pump (341) is fixedly installed with an inlet tee pipe (343). The two output ends of the inlet tee pipe (343) are respectively connected to the built-in furnace body external residual heat heating chamber and the tail gas waste heat utilization pulse steam pressurization module (33). The inlet pipe (342) is fixedly connected to the top side of the outer insulation ring (32). The input end of the inlet pipe (342) is connected to the built-in furnace body external residual heat heating chamber. The output end of the inlet pipe (342) is connected to the reactor (2). The input end of the water supply pump (341) is provided with an external water supply pipe (344), and the input end of the external water supply pipe (344) is also provided with a connecting flange.

4. The high-temperature methanol reforming hydrogen production long-term power generation device according to claim 1, characterized in that, The waste heat utilization pulse steam pressurization module (33) includes a heat exchange module (331) and a steam pulse release module (332). The heat exchange module (331) is fixedly connected to the output end of the exhaust pipe (31), and the steam pulse release module (332) is fixedly connected to the top of the heat exchange module (331).

5. A high-temperature methanol reforming hydrogen production long-term power generation device according to claim 4, characterized in that, The heat exchange module (331) includes a heat exchange tank (3311), which is fixedly installed at the output end of the exhaust pipe (31). A heat-conducting coil (3312) is fixedly installed on the inner side of the heat exchange tank (3311). The input end of the heat-conducting coil (3312) is connected to the output end of the exhaust pipe (31). The heat-conducting coil (3312) is arranged in a spiral shape. An exhaust gas discharge outer pipe (3313) is fixedly installed at the output end of the heat exchange tank (3311). The input end of the exhaust gas discharge outer pipe (3313) is connected to the output end of the heat-conducting coil (3312). A connecting flange is also provided at the outer end of the exhaust gas discharge outer pipe (3313).

6. A high-temperature methanol reforming hydrogen production long-term power generation device according to claim 5, characterized in that, The steam pulse release module (332) includes a pressure storage tank (3321), which is fixedly installed on the top of the heat exchange tank (3311). The bottom of the pressure storage tank (3321) is connected to the inside of the heat exchange tank (3311). The input end of the pressure storage tank (3321) is connected to the other output end of the water inlet tee pipe (343) away from the reactor (2). The output end of the pressure storage tank (3321) is fixedly installed with a pressure supply tee pipe (3322), which is connected to the top of the methanol addition mechanism (6). The top of the pressure storage tank (3321) is fixedly installed with a pressure release pipe (3323), and the output end of the pressure release pipe (3323) is connected to the inside of the reactor (2).

7. A high-temperature methanol reforming hydrogen production long-term power generation device according to claim 6, characterized in that, The methanol addition mechanism (6) includes a desulfurization device (61), which is fixedly installed on the top front side of the base (1). A filter module (62) is installed at both the input and output ends of the desulfurization device (61). A methanol addition pipe (63) is fixedly installed at the outer end of the filter module (62) at the input end. A connecting conveying pipe (64) is provided at the output end of the filter module (62) at the output end. The connecting conveying pipe (64) is connected to the reactor (2). A connecting flange is also provided at the input end of the methanol addition pipe (63). A pulse pressure cleaning module (65) is fixedly installed on the top of the filter module (62). The input end of the pulse pressure cleaning module (65) is connected to the two output ends of the pressure supply tee pipe (3322). The bottom cleaning end of the pressure supply tee pipe (3322) is located inside the filter module (62).

8. A high-temperature methanol reforming hydrogen production long-term power generation device according to claim 7, characterized in that, The filter module (62) includes a filter box (621), which is fixedly installed at the input and output ends of the desulfurization device (61). The methanol addition pipe (63) is fixedly installed on the outside of the filter box (621) at the input end of the desulfurization device (61), and the connecting conveying pipe (64) is fixedly installed on the outside of the filter box (621) at the output end of the desulfurization device (61). The filter box (621) has a filter screen placement groove (622) in the middle. A filter screen (623) is detachably installed inside the filter screen placement groove (622). A sealing plate (624) is fixedly connected to the top of the filter screen (623), and side fixing plates (625) are fixedly installed at both ends of the bottom of the sealing plate (624). The bottom end of the side fixing plate (625) is threadedly connected to a limiting screw (626). The end of the limiting screw (626) passes through the side fixing plate (625) and is threadedly connected to the outside of the filter box (621). The bottom of the filter box (621) is located below the filter surface of the filter screen (623) and a collection box (627) is provided. The top of the collection box (627) is connected to the inside of the filter box (621). A sealing cap (628) is threadedly connected to one side of the lower end of the collection box (627). A connecting rod (629) is rotatably connected to the rear side of the sealing cap (628). A scraper (6210) is fixedly connected to the outer end of the connecting rod (629). The surface of the scraper (6210) is in contact with the inner wall of the collection box (627).

9. A high-temperature methanol reforming hydrogen production long-term power generation device according to claim 8, characterized in that, The pulse pressure cleaning module (65) includes a piston tube (651), which is fixedly installed on the top of the filter box (621) near the input end of the filter box (621). The bottom of the piston tube (651) is connected to the filter surface of the filter screen (623) inside the filter box (621). A piston plate (652) is slidably connected inside the piston tube (651). The top of the piston tube (651) is connected to the output end of the pressure supply tee (3322). The piston plate (652) is connected to a return spring (653) at its bottom. The bottom of the return spring (653) is fixedly connected to the bottom of the piston tube (651). A push-pull shaft (654) is fixedly installed at the bottom of the piston plate (652). The bottom output end of the push-pull shaft (654) extends into the filter box (621) and a cleaning plate (655) is fixedly installed thereon. The cleaning surface of the cleaning plate (655) is in contact with the filter surface of the filter screen (623).

10. A control system for high-temperature methanol reforming to produce hydrogen for long-term power generation, employing the high-temperature methanol reforming to produce hydrogen for long-term power generation device according to any one of claims 1-9, characterized in that, The system includes a control module, a high-temperature steam pressure sensor (3224), a first on / off switching module (345), a liquid level sensor, a second on / off switching module (3225), and a third on / off switching module (3226) installed in the controller of the fuel cell generator set (4). The first on / off switching module (345) is installed at the connection between the inlet pipe (342) and the reactor (2). The second on / off switching module (3225) is installed at the connection between the water inlet tee pipe (343) and the pressure storage tank (3321). The third on / off switching module (3226) is installed between the pressure storage tank (3321) and the pressure relief pipe (3323). At the connection point, the first on / off switching module (345), the second on / off switching module (3225), and the third on / off switching module (3226) are all composed of electromagnetic on / off switching valves. The bottom pressure measuring end of the high-temperature steam pressure sensor (3224) is located inside the pressure storage tank (3321). The control module is electrically connected to the high-temperature steam pressure sensor (3224), the second on / off switching module (3225), the third on / off switching module (3226), the water supply pump (341), and the fuel cell generator set (4). The liquid level sensor is located inside the pressure storage tank (3321).

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