Two-way flow guide type exhaust smoke removal heat dissipation device for methanol generator

Abstract

The invention discloses a two-way flow guide type exhaust smoke removal heat dissipation device for a methanol generator, and relates to the technical field of energy-saving generators and generator sets, the two-way flow guide type exhaust smoke removal heat dissipation device comprises a methanol generator cabin, a methanol generator set is installed in the methanol generator cabin, and a smoke exhaust chamber is formed in the methanol generator cabin; the device further comprises a flow dividing mechanism for performing flow dividing treatment on flue gas; the flow dividing mechanism comprises an exhaust manifold fixedly connected to the inner wall of the smoke exhaust chamber, and one end of the exhaust manifold is fixedly connected with an engine cover of the methanol generator. The SMA torsion spring is adopted as a core driving element, is kept in a reset state at low temperature, guides all waste gas to enter a purification path, and drives the sealing ball to rotate and automatically distributes high-temperature waste gas to a waste heat recovery path when the temperature reaches a phase change interval, so that an external sensor, a control circuit or a power source is not needed in the waste gas flow channel conversion process; and the risks of high-temperature failure of electronic components and clamping stagnation of a mechanical valve are avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of energy-saving generators and generator sets, and particularly relates to a double-path flow-guiding type exhaust smoke-removing heat-dissipating device for a methanol generator. BACKGROUND

[0002] Methanol, as a clean and renewable hydrocarbon fuel, has a good application prospect in the fields of distributed power generation, standby power supply and mobile power.

[0003] Chinese patent CN120351058B discloses a methanol generator protection device for smoke removal and heat dissipation, which comprises a box container accommodating a methanol generator set. The box container is internally provided with a methanol fuel chamber, an exhaust chamber, a cabin chamber and a charging device chamber. The methanol fuel chamber is used for accommodating a methanol fuel tank. The cabin chamber is used for accommodating the methanol generator set. The exhaust chamber is used for exhausting flue gas generated by the methanol generator set and dissipating heat. The charging device chamber is used for supplying power to a power distribution device. The methanol fuel chamber is located at one end of the box container and is provided with a fuel maintenance door on the front surface. A methanol concentration sensor is installed in the methanol fuel chamber. A liquid nitrogen tank is also arranged in the methanol fuel chamber. A spray pipe is connected to the outlet of the liquid nitrogen tank. A spray head is arranged on the spray pipe. An electric valve is installed at the outlet of the liquid nitrogen tank. The methanol concentration sensor is electrically connected to the electric valve. When the methanol concentration sensor detects that the methanol concentration in the methanol fuel chamber is too high, the electric valve is controlled to be opened, so that the liquid nitrogen in the liquid nitrogen tank is sprayed out of the spray head through the spray pipe. In this way, the methanol fuel chamber is cooled, and inert gas is filled into the methanol fuel chamber, thereby preventing the leaked methanol from burning, and protecting the safety of the methanol generator set and the safety of the user.

[0004] According to the above-mentioned prior art, it is found that when the methanol generator is operated at high load, the exhaust temperature can be as high as 500°C or higher. The high-temperature exhaust gas contains a large amount of waste heat. The traditional treatment method is passive heat dissipation through heat dissipation fins or extended pipelines. This not only causes energy waste, but also consumes additional space and materials. In addition, directly passing the ultra-high-temperature exhaust gas into the catalytic converter can cause the catalyst carrier to sinter and deactivate due to overheating, thereby shortening the service life of the catalyst. SUMMARY

[0005] To solve the problems in the background art, the present application adopts the following technical solutions: A double-path flow-guiding type exhaust smoke-removing heat-dissipating device for a methanol generator, comprising a methanol generator cabin, wherein a methanol generator set is installed in the methanol generator cabin, and a smoke exhaust chamber is formed in the methanol generator cabin, and a shunt mechanism for shunting the flue gas is further included. The diversion mechanism includes an exhaust manifold fixedly connected to the inner wall of the smoke exhaust chamber. One end of the exhaust manifold is fixedly connected to the engine cover of the methanol generator, and the other end of the exhaust manifold is fixedly connected to a flexible metal corrugated pipe. An installation column is fixedly connected to the bottom of the smoke exhaust chamber, and a purification pipe is fixedly connected to the upper end of the installation column. One end of the purification pipe is fixedly connected to the flexible metal corrugated pipe, and a waste heat recovery pipe is fixedly connected to the side wall of the purification pipe. The other end of the waste heat recovery pipe is connected to the purification pipe, and an installation cylinder is fixedly connected to the lower end of the purification pipe. A rotating shaft is rotatably connected to the bottom of the installation cylinder, and a sealing ball is rotatably connected to the inner wall of the purification pipe. The upper end of the rotating shaft penetrates the inner wall of the purification pipe and is fixedly connected to the sealing ball. A three-way opening is provided inside the sealing ball, and an SMA torsion spring is fixedly sleeved on the side wall of the rotating shaft. The two ends of the SMA torsion spring are fixedly connected to the bottom and top of the installation cylinder, respectively.

[0006] Preferably, a catalyst assembly is fixedly connected to the inner wall of the purification pipe, and an oxidation catalyst and a catalytic filter are fixedly connected to the inner wall of the catalyst assembly.

[0007] Preferably, the oxidation catalyst uses an aluminum titanate honeycomb ceramic support, and the surface of the oxidation catalyst is coated with a Pt-Pd-Rh three-way catalyst. The catalytic filter uses a porous silicon carbide support, and the surface of the catalytic filter is coated with a Cu-Ce-Zr composite oxide.

[0008] Preferably, a cooling mechanism is installed on the waste heat recovery pipeline. The cooling mechanism includes a cooling ring pipe fixedly connected to the side wall of the waste heat recovery pipeline. A heat conduction cavity is opened in the side wall of the waste heat recovery pipeline. Multiple thermoelectric generators are fixedly embedded in the inner wall of the heat conduction cavity. The cold end of the thermoelectric generator extends into the cooling ring pipe, and the hot end of the thermoelectric generator extends into the heat conduction cavity. Multiple heat conduction columns are fixedly connected to the inner wall of the waste heat recovery pipeline. One end of each heat conduction column extends into the heat conduction cavity and is in contact with the hot end of the thermoelectric generator. Multiple heat conduction fins are fixedly connected to the side wall of each heat conduction column.

[0009] Preferably, the cooling mechanism further includes a liquid inlet pipe fixedly connected to the inner wall of the exhaust chamber, the liquid inlet pipe being connected to the cooling ring pipe through multiple branch pipes, and a liquid return pipe being fixedly connected to the inner wall of the exhaust chamber, the cooling ring pipe being connected to the liquid return pipe through multiple branch pipes.

[0010] Preferably, one end of the inlet pipe and one end of the return pipe are both connected to the cooling system pipes of the methanol generator.

[0011] Preferably, the thermoelectric generator is electrically connected to the control system of the methanol generator via wires.

[0012] Preferably, an adjustment mechanism is installed inside the liquid inlet pipe. The adjustment mechanism includes a rotating rod rotatably connected to the inner wall of the liquid inlet pipe. A valve plate is fixedly connected to the side wall of the rotating rod. The side wall of the valve plate is sealed and fitted to the inner wall of the liquid inlet pipe. A gear is fixedly connected to the upper end of the rotating rod through the upper end of the liquid inlet pipe. An installation plate is fixedly connected to the inner wall of the smoke exhaust chamber. An electric push rod is fixedly connected to the side wall of the installation plate. A rack is fixedly connected to the movable end of the electric push rod. The rack meshes with the gear.

[0013] Preferably, the adjustment mechanism further includes a temperature sensor fixedly connected to the inner wall of the purification pipe, and the temperature sensor is connected to the electric push rod through a PLC control circuit.

[0014] The present invention has the following beneficial effects: 1. Using SMA torsion springs as the core driving element, it remains in the reset state at low temperatures, guiding all the exhaust gas into the purification path. When the temperature reaches the phase change range, it deforms and drives the sealing ball to rotate, automatically diverting the high-temperature exhaust gas to the waste heat recovery path. This eliminates the need for external sensors, control circuits, or power sources during the exhaust gas flow channel conversion process, avoiding the risks of high-temperature failure of electronic components and mechanical valve jamming. The system has a simple structure, reliable operation, and long service life. 2. The purification path is equipped with two-stage treatment units: an oxidation catalyst and a catalytic filter. The former efficiently oxidizes CO, HCHO and unburned methanol, while the latter physically intercepts and catalytically oxidizes trace particulate matter, achieving synergistic deep removal of gaseous and solid pollutants and ensuring clean emissions. Through forced cooling via the waste heat recovery path, the ultra-high temperature exhaust gas under high load can be reduced to the optimal operating temperature range of the catalyst before being sent to the catalyst. This not only prevents the catalyst from overheating and sintering, but also ensures that it always operates within the high efficiency window, balancing purification effect and catalyst life. 3. In the waste heat recovery path, a thermoelectric generator is integrated. It efficiently captures the heat of the exhaust gas through heat-conducting columns and heat-conducting fins, and directly converts it into electrical energy using the Seebeck effect. The generated energy can be used in the generator's own control system, effectively recovering the exhaust energy that was traditionally wasted, improving the net output efficiency of the whole machine, and meeting the requirements of energy conservation and environmental protection. 4. By setting up a control system consisting of a temperature sensor, PLC and adjustable valve plate, the temperature of the exhaust gas entering the catalyst is monitored in real time. The cooling intensity of the thermoelectric generator is dynamically controlled by adjusting the coolant flow rate, thereby accurately stabilizing the flue gas temperature near the optimal ignition temperature of the catalyst. This allows the system to not only cope with large changes in operating conditions, but also to make fine adjustments, achieving an intelligent and seamless balance between ensuring purification and maximizing power generation. Attached Figure Description

[0015] Figure 1This is a schematic diagram of the structure of a dual-flow exhaust smoke removal and heat dissipation device for a methanol generator proposed in this invention. Figure 2 This is a schematic diagram of the smoke exhaust chamber in this invention; Figure 3 for Figure 2 Schematic diagram of the central flow distribution mechanism and cooling mechanism; Figure 4 for Figure 3 Cross-sectional view of the central purification pipeline; Figure 5 for Figure 4 Enlarged schematic diagram of the structure at point A; Figure 6 for Figure 3 A cross-sectional view of the central purification pipeline from another angle; Figure 7 for Figure 3 Cross-sectional schematic diagram of the waste heat recovery pipeline and liquid inlet pipe; Figure 8 for Figure 7 Enlarged schematic diagram of the structure at point B; Figure 9 for Figure 7 Enlarged schematic diagram of the structure at point C.

[0016] In the diagram: 1. Methanol generator compartment; 2. Exhaust manifold; 3. Flexible metal bellows; 4. Purification pipe; 5. Waste heat recovery pipe; 6. Mounting cylinder; 7. Rotating shaft; 8. Sealing ball; 9. T-junction; 10. SMA torsion spring; 11. Mounting column; 12. Catalyst assembly; 13. Oxidation catalyst; 14. Catalytic filter; 15. Cooling ring pipe; 16. Heat conduction chamber; 17. Thermoelectric generator; 18. Heat conduction column; 19. Heat conduction fins; 20. Liquid inlet pipe; 21. Diverter pipe one; 22. Liquid return pipe; 23. Diverter pipe two; 24. Rotating rod; 25. Valve plate; 26. Mounting plate; 27. Electric push rod; 28. Rack; 29. ​​Gear; 30. Temperature sensor; 31. Smoke chamber. Detailed Implementation

[0017] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0018] Reference Figures 1-9A dual-flow exhaust and smoke removal heat dissipation device for methanol generators includes a methanol generator compartment 1, in which a methanol generator set is installed, and a smoke exhaust chamber 31 is provided in the methanol generator compartment 1. It also includes a diversion mechanism for diverting the flue gas. The diversion mechanism includes an exhaust manifold 2 fixedly connected to the inner wall of the exhaust chamber 31. One end of the exhaust manifold 2 is fixedly connected to the engine cover of the methanol generator, and the other end of the exhaust manifold 2 is fixedly connected to a flexible metal corrugated pipe 3. An installation column 11 is fixedly connected to the bottom of the exhaust chamber 31. A purification pipe 4 is fixedly connected to the upper end of the installation column 11. One end of the purification pipe 4 is fixedly connected to the flexible metal corrugated pipe 3. A waste heat recovery pipe 5 is fixedly connected to the side wall of the purification pipe 4. The other end of the waste heat recovery pipe 5 is connected to the purification pipe 4. An installation cylinder 6 is fixedly connected to the lower end of the purification pipe 4. A rotating shaft 7 is rotatably connected to the bottom of the installation cylinder 6. A sealing ball 8 is rotatably connected to the inner wall of the purification pipe 4. Both the rotating shaft 7 and the sealing ball 8 are made of materials with good thermal conductivity. The upper end of the rotating shaft 7 penetrates the inner wall of the purification pipe 4 and is fixedly connected to the sealing ball 8. A three-way port 9 is opened in the sealing ball 8. An SMA torsion spring 10 is fixedly sleeved on the side wall of the rotating shaft 7. The two ends of the SMA torsion spring 10 are fixedly connected to the bottom and top of the installation cylinder 6, respectively.

[0019] It should be noted that the engine of the methanol generator will vibrate during operation. If the rigid pipeline is directly connected, the vibration will be transmitted to the entire device, causing weld cracks, loose joints and air leaks. Therefore, the flexible metal bellows 3 can provide a flexible connection, absorb vibration, and protect valuable components such as the subsequent catalyst assembly 12.

[0020] It should be noted that the SMA torsion spring 10 is a torsion spring made of nickel-titanium shape memory alloy, which can deform according to temperature changes. When the temperature reaches 200-250 degrees Celsius, the SMA torsion spring 10 will deform. When the temperature reaches 250 degrees Celsius, the deformation of the SMA torsion spring 10 reaches its maximum. When the temperature is below 200 degrees Celsius, it will reverse to twist and return to its original position.

[0021] Furthermore, when the methanol generator set is working, the combustion of methanol will produce flue gas, which will be discharged from the engine of the methanol generator set and enter the exhaust manifold 2. Then the flue gas will enter the purification pipe 4 through the flexible metal corrugated pipe 3.

[0022] A catalyst assembly 12 is fixedly connected to the inner wall of the purification pipe 4, and an oxidation catalyst 13 and a catalytic filter 14 are fixedly connected to the inner wall of the catalyst assembly 12.

[0023] The oxidation catalyst 13 uses an aluminum titanate honeycomb ceramic support and is coated with a Pt-Pd-Rh three-way catalyst. The catalytic filter 14 uses a porous silicon carbide support and is coated with a Cu-Ce-Zr composite oxide.

[0024] Furthermore, initially, the methanol generator starts cold and is under low load, resulting in relatively low exhaust gas temperature. The exhaust gas flows through the three-way port 9 into the purification pipe 4 and then towards the catalyst assembly 12. The oxidation catalyst 13 oxidizes the carbon monoxide, formaldehyde, and unburned methanol produced by methanol combustion into carbon dioxide and water, while the catalytic filter 14 traps fine particulate matter in the exhaust gas. This purifies the exhaust gas produced after methanol combustion, ensuring it meets emission standards and does not cause environmental pollution. It can handle not only gaseous pollutants but also potentially formed microparticles, resulting in more thorough purification. The catalytic coating promotes the oxidation of captured pollutants and can automatically clean itself during normal high-load engine operation, greatly extending the system's lifespan.

[0025] It is worth mentioning that, since the catalysts in the oxidation catalyst 13 and the catalytic filter 14 have a certain ignition temperature, the catalysts in the oxidation catalyst 13 and the catalytic filter 14 can only achieve the best purification effect when the flue gas temperature reaches 200-250 degrees Celsius. The phase change temperature of the SMA torsion spring 10 is between 200-250 degrees Celsius. When the flue gas temperature reaches 200 degrees Celsius, it reaches the phase change temperature of the SMA torsion spring 10, and the SMA torsion spring 10 begins to function with slight deformation. When the flue gas temperature reaches 250 degrees Celsius, the SMA torsion spring 10 is fully activated, causing the rotating shaft 7 to deflect 90 degrees, which in turn drives the sealing ball 8 to rotate 90 degrees. This causes one end of the three-way port 9 to face the flexible metal bellows 3, the other end to face the waste heat recovery pipe 5, and the last end to abut against the inner wall of the purification pipe 4 (e.g., Figure 6 (As shown).

[0026] A cooling mechanism is installed on the waste heat recovery pipe 5. The cooling mechanism includes a cooling ring pipe 15 fixedly connected to the side wall of the waste heat recovery pipe 5. The surface of the cooling ring pipe 15 is coated with an anti-corrosion coating. A heat conduction cavity 16 is opened in the side wall of the waste heat recovery pipe 5. Multiple thermoelectric generators 17 are fixedly embedded in the inner wall of the heat conduction cavity 16. The cold end of the thermoelectric generator 17 extends into the cooling ring pipe 15, and the hot end of the thermoelectric generator 17 extends into the heat conduction cavity 16. Multiple heat conduction columns 18 are fixedly connected to the inner wall of the waste heat recovery pipe 5. One end of the multiple heat conduction columns 18 extends into the heat conduction cavity 16 and is in contact with the hot end of the thermoelectric generator 17. Multiple heat conduction fins 19 are fixedly connected to the side wall of the heat conduction columns 18. The heat conduction fins 19 can increase the contact area with the flue gas and play a role in rapid heat conduction, thereby rapidly cooling the flue gas.

[0027] It should be noted that the density of the thermoelectric generators 17 decreases from left to right (e.g., ...). Figure 7As shown in the diagram, the initial flue gas temperature entering the waste heat recovery pipe 5 is high, and the thermoelectric generators 17 are arranged more densely to achieve rapid cooling. Furthermore, the high initial flue gas temperature creates a significant temperature difference between the hot and cold ends of the thermoelectric generators 17, enabling efficient power generation. Therefore, maximizing power generation efficiency by arranging a high density of thermoelectric generators 17 at the front end is crucial. Subsequently, the flue gas temperature decreases, and the density of the thermoelectric generators 17 decreases, which slows down the cooling rate and prevents excessive cooling that could cause the flue gas temperature to drop below the catalyst ignition temperature, thus affecting subsequent catalyst ignition.

[0028] It should be noted that the thermoelectric generator 17 uses high-temperature thermoelectric materials, and its hot end needs to withstand operating temperatures exceeding 500 degrees Celsius for a long time.

[0029] The cooling mechanism also includes an inlet pipe 20 fixedly connected to the inner wall of the exhaust chamber 31. The inlet pipe 20 is connected to the cooling ring pipe 15 through multiple branch pipes 21. A return pipe 22 is fixedly connected to the inner wall of the exhaust chamber 31. The cooling ring pipe 15 is connected to the return pipe 22 through multiple branch pipes 23.

[0030] One end of the liquid inlet pipe 20 and one end of the liquid return pipe 22 are both connected to the cooling system pipes of the methanol generator.

[0031] Furthermore, as the methanol generator continues to operate under high load, the exhaust gas temperature gradually increases. When the exhaust gas temperature exceeds 250 degrees Celsius, the heat from the exhaust gas is transferred to the SMA torsion spring 10 through the sealing ball 8 and the rotating shaft 7, causing the SMA torsion spring 10 to fully deform. This causes the rotating shaft 7 to deflect 90 degrees, which in turn causes the sealing ball 8 to rotate 90 degrees, making the sealing ball 8 connected to the waste heat recovery pipe 5. The exhaust gas entering from the flexible metal bellows 3 enters the waste heat recovery pipe 5 through the three-way port 9, where it flows. Meanwhile, some of the coolant from the methanol generator's cooling system enters the first branch pipe 21 through the inlet pipe 20, then enters the cooling ring pipe 15, and finally enters the return pipe 22 through the second branch pipe 23, from where it flows back to the methanol generator. In the machine's cooling system, the flue gas completes the circulation. When the flue gas flows in the waste heat recovery pipe 5, the heat-conducting column 18 and heat-conducting fins 19 transfer the heat in the flue gas to the hot end of the thermoelectric generator 17. Then, the heat is transferred to the cold end of the thermoelectric generator 17. Finally, the heat is absorbed by the coolant, thereby cooling the flue gas in the waste heat recovery pipe 5. The cooled flue gas will re-enter the purification pipe 4, and then be discharged after being treated by the oxidation catalyst 13 and the catalytic filter 14. At this time, the temperature of the cooled flue gas will be maintained at about 250 degrees Celsius. When flowing through the catalyst assembly 12, it can ensure that the temperature of the flue gas is within the optimal treatment range of the catalyst, thereby ensuring the best purification effect on the flue gas. By using the temperature of the flue gas to passively and automatically switch the flow path of the flue gas, the purification treatment and heat dissipation of the flue gas are graded to avoid interference.

[0032] It should be noted that the coolant used is an aqueous solution of ethylene glycol (ethylene glycol to deionized water in a 1:1 ratio).

[0033] The thermoelectric generator 17 is electrically connected to the control system of the methanol generator via wires. The circuit consisting of the thermoelectric generator 17 and the control system of the methanol generator is equipped with a converter, a voltage regulator circuit and a capacitor. The electrical energy generated by the thermoelectric generator 17 is processed by the converter and the voltage regulator circuit and stored in the capacitor, thereby supplying power to the control system of the methanol generator.

[0034] Furthermore, since a temperature difference will be generated between the hot and cold ends of the thermoelectric generator 17, the thermoelectric generator 17 will convert thermal energy into DC power. This power, after processing, can be directly used as the reserve power for the methanol generator control system and used for the operation of the methanol generator control system. This can realize the recovery and utilization of excess heat from the flue gas, achieving the effect of energy saving and environmental protection.

[0035] An adjustment mechanism is installed inside the liquid inlet pipe 20. The adjustment mechanism includes a rotating rod 24 rotatably connected to the inner wall of the liquid inlet pipe 20. A valve plate 25 is fixedly connected to the side wall of the rotating rod 24. The side wall of the valve plate 25 is sealed and fitted to the inner wall of the liquid inlet pipe 20. The upper end of the rotating rod 24 passes through the upper end of the liquid inlet pipe 20 and is fixedly connected to a gear 29. An installation plate 26 is fixedly connected to the inner wall of the smoke exhaust chamber 31. An electric push rod 27 is fixedly connected to the side wall of the installation plate 26. A rack 28 is fixedly connected to the movable end of the electric push rod 27. The rack 28 meshes with the gear 29.

[0036] The regulating mechanism also includes a temperature sensor 30 fixedly connected to the inner wall of the purification pipe 4. The temperature sensor 30 is connected to the electric push rod 27 through a PLC control circuit.

[0037] Furthermore, since a temperature sensor 30 is installed at the connection between the exhaust port of the waste heat recovery pipe 5 and the purification pipe 4, the temperature of the flue gas entering the purification pipe 4 after cooling can be monitored in real time. If the temperature sensor 30 detects that the flue gas temperature is below 250 degrees Celsius, it indicates that the flue gas has been excessively cooled in the waste heat recovery pipe 5. At this time, the temperature of the discharged flue gas cannot reach the optimal treatment temperature of the catalyst. At this time, the temperature sensor 30 sends a signal, which controls the electric push rod 27 to shorten through the PLC control circuit, thereby driving the rack 28 to move, driving the gear 29 to rotate, and driving the rotating rod 24 to rotate, thereby driving the valve plate 25 to rotate, reducing the opening and closing angle of the valve plate 25, thereby reducing the flow rate of the coolant in the inlet pipe 20, thereby reducing the flow rate of the coolant in the cooling ring pipe 15, and thus reducing the heat... The increased temperature at the cold end of the thermoelectric generator 17 reduces the temperature difference between the cold and hot ends, decreasing the cooling efficiency of the flue gas and raising the exhaust gas temperature until it stabilizes at around 250 degrees Celsius. This allows the catalyst to quickly reach its ignition temperature, ensuring effective flue gas purification. When the exhaust gas temperature exceeds 250 degrees Celsius, the temperature sensor 30 detects the temperature and sends a signal. The PLC control circuit then controls the electric push rod 27 to extend, causing the rotating rod 24 to rotate in the opposite direction. This, in turn, causes the valve plate 25 to rotate in the opposite direction, fully opening and closing the valve plate 25. At this point, the coolant flow rate in the inlet pipe 20 is at its maximum, maximizing the temperature difference between the cold and hot ends of the thermoelectric generator 17 and achieving high-efficiency power generation. Therefore, the system can intelligently and seamlessly switch between rapid purification and high-efficiency power generation based on real-time operating conditions.

[0038] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A double-path flow guide type exhaust smoke removal and heat dissipation device for a methanol generator, comprising a methanol generator cabin (1), a methanol generator set is installed in the methanol generator cabin (1), and an exhaust smoke chamber (31) is formed in the methanol generator cabin (1), characterized in that, The shunt mechanism is used for shunting treatment of flue gas. The shunt mechanism comprises an exhaust manifold (2) fixedly connected to the inner wall of the flue gas chamber (31), one end of the exhaust manifold (2) is fixedly connected to the engine cover of the methanol generator, the other end of the exhaust manifold (2) is fixedly connected with a flexible metal bellows (3), the inner bottom of the flue gas chamber (31) is fixedly connected with a mounting column (11), the upper end of the mounting column (11) is fixedly connected with a purification pipeline (4), one end of the purification pipeline (4) is fixedly connected with the flexible metal bellows (3), the side wall of the purification pipeline (4) is fixedly connected with a waste heat recovery pipeline (5), the other end of the waste heat recovery pipeline (5) is communicated with the purification pipeline (4), the lower end of the purification pipeline (4) is fixedly connected with a mounting cylinder (6), the inner bottom of the mounting cylinder (6) is rotatably connected with a rotating shaft (7), the inner wall of the purification pipeline (4) is sealingly rotatably connected with a sealing ball (8), the upper end of the rotating shaft (7) penetrates through the inner wall of the purification pipeline (4) and is fixedly connected with the sealing ball (8), a three-way port (9) is formed in the sealing ball (8), the side wall of the rotating shaft (7) is fixedly sleeved with an SMA torsional spring (10), the two ends of the SMA torsional spring (10) are fixedly connected with the inner bottom and the inner top of the mounting cylinder (6) respectively.

2. The double-path flow guide type exhaust smoke removing and heat radiating device for a methanol engine according to claim 1, characterized in that, The inner wall of the purification pipeline (4) is fixedly connected with a catalytic converter assembly (12), the inner wall of the catalytic converter assembly (12) is fixedly connected with an oxidation catalytic converter (13) and a catalytic filter (14).

3. The double-path flow guide type exhaust smoke removing and heat radiating device for a methanol engine according to claim 2, characterized in that, The oxidation catalytic converter (13) adopts an aluminum titanate honeycomb ceramic carrier, and the surface of the oxidation catalytic converter (13) is coated with a Pt-Pd-Rh three-way catalyst, the catalytic filter (14) adopts a porous silicon carbide carrier, and the surface of the catalytic filter (14) is coated with a Cu-Ce-Zr composite oxide.

4. The double-path flow guide type exhaust smoke removing and heat radiating device for a methanol engine according to claim 1, characterized in that, The waste heat recovery pipeline (5) is provided with a cooling mechanism, the cooling mechanism comprises a cooling ring pipe (15) fixedly connected to the side wall of the waste heat recovery pipeline (5), a heat conduction cavity (16) is formed in the side wall of the waste heat recovery pipeline (5), a plurality of thermoelectric generators (17) are fixedly embedded in the inner wall of the heat conduction cavity (16), the cold end of the thermoelectric generator (17) extends into the cooling ring pipe (15), the hot end of the thermoelectric generator (17) extends into the heat conduction cavity (16), a plurality of heat conduction columns (18) are fixedly connected to the inner wall of the waste heat recovery pipeline (5), one end of the heat conduction column (18) extends into the heat conduction cavity (16) and is attached to the hot end of the thermoelectric generator (17), and the side wall of the heat conduction column (18) is fixedly connected with a plurality of heat conduction fins (19).

5. The double-path flow guide type exhaust smoke removing and heat radiating device for a methanol engine according to claim 4, characterized in that, The cooling mechanism further comprises an inlet pipe (20) fixedly connected to the inner wall of the flue gas chamber (31), the inlet pipe (20) is communicated with the cooling ring pipe (15) through a plurality of shunt pipes (21), and the inner wall of the flue gas chamber (31) is fixedly connected with a return pipe (22), the cooling ring pipe (15) is communicated with the return pipe (22) through a plurality of shunt pipes (23).

6. The double-path flow guide type exhaust smoke removing and heat radiating device for a methanol engine according to claim 5, characterized in that, One end of the inlet pipe (20) and one end of the return pipe (22) are communicated with the cooling system pipeline of the methanol generator.

7. The double-path flow guide type exhaust smoke removing and heat radiating device for a methanol engine according to claim 4, characterized in that, The thermoelectric generator (17) is electrically connected with the control system of the methanol generator through a wire.

8. The double-path flow guide type exhaust smoke removing and heat radiating device for a methanol engine according to claim 5, characterized in that, The adjusting mechanism is installed in the liquid inlet pipe (20), and the adjusting mechanism comprises a rotating rod (24) which is rotatably connected to the inner wall of the liquid inlet pipe (20), a valve plate (25) which is fixedly connected to the side wall of the rotating rod (24) and is sealingly attached to the inner wall of the liquid inlet pipe (20), and a gear (29) which penetrates through the upper end of the liquid inlet pipe (20) and is fixedly connected to the upper end of the rotating rod (24); the inner wall of the smoke exhaust chamber (31) is fixedly connected with a mounting plate (26), the side wall of the mounting plate (26) is fixedly connected with an electric push rod (27), the movable end of the electric push rod (27) is fixedly connected with a rack (28), and the rack (28) is in meshing connection with the gear (29).

9. The double-path flow guide type exhaust smoke removing and heat radiating device for a methanol engine according to claim 8, characterized in that, The adjusting mechanism further comprises a temperature sensor (30) which is fixedly connected to the inner wall of the purification pipeline (4), and the temperature sensor (30) is connected with the electric push rod (27) through a PLC control circuit.

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