Heat exchange device and vehicle

Abstract

The utility model provides a heat exchange device and a vehicle. The heat exchange device comprises a methanol burner, a heat exchanger and a circulating liquid pipeline. Tail gas generated by methanol combustion of the methanol combustor flows to a gas flow channel of the heat exchanger, and circulating liquid before entering the methanol combustor flows to a liquid flow channel of the heat exchanger, so that heat exchange between the circulating liquid and the tail gas is realized in the heat exchanger, and the circulating liquid is heated in the first step; and the circulating liquid subjected to the first-step temperature rise flows to the methanol burner, so that the circulating liquid is subjected to second-step temperature rise under methanol combustion of the methanol burner. Compared with a traditional methanol heat exchange device, the methanol heat exchange device has the advantages that the heat exchanger is additionally arranged, heat in tail gas discharged by the methanol burner can be effectively recycled, consumption of methanol fuel in the methanol burner is reduced, the temperature rise time of circulating liquid is shortened, the temperature of a methanol engine assembly is rapidly increased to the proper temperature, and the heat exchange efficiency is improved. The methanol fuel of the methanol engine assembly is fully combusted, and the starting time is shortened.

Description

Technical Field

[0001] The present application relates to the field of heat exchange technology, and in particular to a heat exchange device, and also to a vehicle comprising the heat exchange device. Background Art

[0002] Methanol is a clean fuel whose main combustion products are carbon dioxide and water, making it more environmentally friendly than traditional fuel combustion. During cold start, the methanol engine assembly uses a methanol warming heat exchanger to heat the circulating fluid. This allows the high-temperature circulating fluid to exchange heat with the methanol engine assembly, thereby increasing the temperature of the methanol engine assembly. This can reduce incomplete combustion and pollutant emissions at low temperatures, making it more environmentally friendly. However, the exhaust gas generated by the methanol warming heat exchanger when burning methanol has a high heat content. In the existing technology, the exhaust gas generated by the methanol warming heat exchanger is often discharged directly into the outside atmosphere, without recovering the heat in the exhaust gas. Utility Model Content

[0003] In view of this, the purpose of the present application is to provide a heat exchange device that can recover and utilize the heat in the exhaust gas generated by the methanol burner while heating the methanol engine assembly through the methanol burner.

[0004] Another object of the present application is to provide a vehicle comprising the above-mentioned heat exchange device.

[0005] In order to achieve the above objectives, this application provides the following technical solutions:

[0006] A heat exchange device for heating a methanol engine assembly, comprising:

[0007] The methanol burner comprises a tail gas discharge port for discharging tail gas generated by combustion of the methanol burner, a first liquid inlet for inletting of circulating liquid, and a first liquid outlet for outlet of the circulating liquid;

[0008] A heat exchanger comprising an air inlet, an air outlet, a second liquid inlet, a second liquid outlet, a gas flow channel connecting the air inlet and the air outlet, and a liquid flow channel connecting the second liquid inlet and the second liquid outlet;

[0009] A circulating liquid pipeline for supplying the circulating liquid, including a liquid outlet pipeline and a liquid return pipeline;

[0010] Wherein, the tail gas discharge port is connected to the air inlet, and the liquid outlet pipeline is connected to the second liquid inlet;

[0011] The second liquid outlet is connected to the first liquid inlet;

[0012] The first liquid outlet is communicated with the liquid return pipeline.

[0013] Optionally, in the above heat exchange device,

[0014] The gas flow channel includes an inlet flow channel main channel connected to the air inlet, an outlet flow channel main channel connected to the air outlet, and a plurality of gas flow channel branches connected in parallel between the inlet flow channel main channel and the outlet flow channel main channel;

[0015] The liquid flow channel includes a main liquid inlet channel connected to the second liquid inlet, a main liquid outlet channel connected to the second liquid outlet, and a plurality of liquid flow channel branches connected in parallel between the main liquid inlet channel and the main liquid outlet channel;

[0016] Wherein, the gas flow channel branch and the liquid flow channel branch are arranged crosswise.

[0017] Optionally, in the above heat exchange device,

[0018] The gas flow channel branch is a corrugated gas flow channel; and / or,

[0019] The liquid flow channel branch is a corrugated liquid flow channel; and / or,

[0020] The extension direction of the gas flow channel branch is perpendicular to the extension direction of the liquid flow channel branch.

[0021] Optionally, in the above heat exchange device, the heat exchanger includes a heat exchange plate group, and the heat exchange plate group includes at least a first heat exchange plate, a second heat exchange plate, and a third heat exchange plate arranged in a stacked manner;

[0022] At least one of the two opposite side surfaces of the first heat exchange plate and the second heat exchange plate is provided with a first flow channel, and the first heat exchange plate is butted against the second heat exchange plate so that the first flow channel forms the circumferentially sealed gas flow channel;

[0023] At least one of the two side surfaces of the second heat exchange plate opposite to the third heat exchange plate is provided with a second flow channel. The second heat exchange plate is butted against the third heat exchange plate so that the second flow channel forms the circumferentially sealed liquid flow channel.

[0024] Optionally, in the above heat exchange device,

[0025] The heat exchange fin groups are provided in a plurality of groups, and at least some of the heat exchange fin groups are detachable, so that the number of the heat exchange fin groups provided in the heat exchanger can be adjusted;

[0026] and / or,

[0027] A honeycomb structure is formed on the surface of the heat exchange fins of the heat exchange fin group.

[0028] Optionally, in the above heat exchange device,

[0029] The exhaust port, the air inlet, and the air outlet are all standard interfaces;

[0030] and / or,

[0031] The first liquid inlet, the first liquid outlet, the second liquid inlet, the second liquid outlet, the port of the liquid outlet pipeline, and the port of the liquid return pipeline are all standard interfaces;

[0032] and / or,

[0033] The air inlet joint, air outlet joint, liquid inlet joint and liquid outlet joint in the heat exchange plate group of the heat exchanger are all standard joints.

[0034] Optionally, in the above-mentioned heat exchange device, the shell of the heat exchanger is covered with a heat insulation layer.

[0035] Optionally, in the above heat exchange device,

[0036] The thermal insulation layer is one of a ceramic fiber insulation layer, a mineral wool insulation layer, a glass wool insulation layer, a polyurethane foam insulation layer, and a polystyrene foam insulation layer;

[0037] and / or,

[0038] The thickness of the heat insulation layer is 10mm-20mm.

[0039] Optionally, in the above heat exchange device,

[0040] The heat exchange device includes a liquid pump for driving the circulating liquid to circulate, and the liquid pump is arranged on the liquid outlet pipeline or the liquid return pipeline;

[0041] and / or,

[0042] The methanol inlet of the methanol burner is communicated with the methanol storage chamber of the methanol engine assembly.

[0043] A vehicle includes a methanol engine assembly and a heat exchange device for heating the methanol engine assembly, wherein the heat exchange device is the heat exchange device described above.

[0044] In the heat exchange device and vehicle of the present application, a heat exchanger is added compared to the traditional methanol warming heat exchange device. The exhaust gas generated by the methanol burner burning methanol flows into the gas flow channel of the heat exchanger, and exchanges heat with the circulating liquid flowing into the liquid flow channel of the heat exchanger, thereby realizing the first step of heating the circulating liquid; the circulating liquid heated in the first step is then circulated to the methanol burner, and is directly heated by the methanol burner burning methanol, thereby realizing the second step of heating the circulating liquid; as described above, the heat in the exhaust gas discharged by the methanol burner is effectively recovered and reused. On the premise that the circulating liquid completes the first step of heating by the heat in the exhaust gas, the heating time of the circulating liquid by the methanol burner can be reduced accordingly, which not only reduces the consumption of methanol fuel and is more energy-saving and environmentally friendly, but also shortens the heating time of the circulating liquid, so that the methanol engine assembly can be quickly heated to a suitable temperature, the methanol fuel of the methanol engine assembly can be fully burned, and the start-up time is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without any creative work.

[0046] Figure 1 This is a schematic structural diagram of a heat exchange device according to an embodiment of the present application;

[0047] Figure 2 This is a schematic structural diagram of a heat exchanger according to an embodiment of the present application;

[0048] Figure 3 A schematic diagram of the distribution of gas flow channels according to an embodiment of the present application;

[0049] Figure 4 Schematic diagram of the distribution of liquid flow channels according to an embodiment of the present application.

[0050] superior Figure 1-4 middle:

[0051] 1. Methanol burner; 2. Heat exchanger; 3. Circulating liquid pipeline; 4. Heat exchanger assembly; 5. Liquid pump; 6. Methanol delivery pipeline; 7. Thermal insulation layer; 8. Methanol engine assembly;

[0052] 11. Tail gas discharge port; 12. First liquid inlet; 13. First liquid outlet; 14. Methanol inlet;

[0053] 21. Air inlet; 22. Air outlet; 23. Second liquid inlet; 24. Second liquid outlet; 25. Gas flow channel; 26. Liquid flow channel;

[0054] 31. Liquid outlet pipeline; 32. Liquid return pipeline;

[0055] 41. Air inlet connector; 42. Air outlet connector; 43. Liquid inlet connector; 44. Liquid outlet connector;

[0056] 251, inlet flow channel main route; 252, outlet flow channel main route; 253, gas flow channel branch route;

[0057] 261. Liquid inlet flow channel main route; 262. Liquid outlet flow channel main route; 263. Liquid flow channel branch route. DETAILED DESCRIPTION

[0058] The present application provides a heat exchange device and a vehicle.

[0059] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0060] like Figures 1-4As shown, an embodiment of the present application provides a heat exchange device for increasing the temperature of a methanol engine assembly. The heat exchange device includes a methanol burner 1, a heat exchanger 2, and a circulating liquid pipeline 3. The circulating liquid flows into the methanol burner 1 through a first liquid inlet 121, where it is directly heated by the methanol burner 1 through the combustion of methanol. The heated circulating liquid then flows out of the methanol burner 1 through a first liquid outlet 13. The heat exchanger 2 includes an air inlet 21, an air outlet 22, a second liquid inlet 23, a second liquid outlet 24, a gas flow channel 25 connecting the air inlet 21 and the air outlet 22, and a liquid flow channel 26 connecting the second liquid inlet 23 and the second liquid outlet 24. The circulating liquid pipeline 3 is used to supply circulating liquid and includes a liquid outlet pipeline 31 and a liquid return pipeline 32. The liquid outlet pipeline 31, the heat exchanger 2, the methanol burner 1, and the liquid return pipeline 32 are interconnected to form a closed loop path for circulating circulating liquid. The tail gas discharge port 11 is connected to the air inlet 21, allowing the tail gas generated by the methanol combustion in the methanol burner 1 to flow into the gas flow channel 25. The gas outlet 22 is connected to the outside atmosphere. The liquid outlet pipeline 31 is connected to the second liquid inlet 23, allowing the circulating liquid flowing out of the liquid outlet pipeline 31 to flow into the liquid flow channel 26. The circulating liquid in the liquid flow channel 26 exchanges heat with the tail gas in the gas flow channel 25, thereby increasing the temperature of the circulating liquid in the first step, thereby obtaining preheated circulating liquid. The second liquid outlet 24 is connected to the first liquid inlet 12, allowing the preheated circulating liquid flowing out of the heat exchanger 2 to flow into the methanol burner 1. The methanol burner 1 burns the methanol, thereby increasing the temperature of the circulating liquid in the second step, thereby obtaining high-temperature circulating liquid. The first liquid outlet 13 is connected to the liquid return line 32, so that the high-temperature circulating liquid flowing out of the methanol burner 1 after two-step heating flows to the liquid return line 32. The liquid return line 32 transports the high-temperature circulating liquid to the vicinity of the methanol engine assembly 8, completing the heat exchange between the high-temperature circulating liquid and the low-temperature methanol engine assembly 8, so that the methanol engine assembly 8 is heated and the cold start of the methanol engine assembly 8 is avoided.

[0061] It should be noted that a heat exchange coil structure can be provided near the methanol engine assembly 8. The heat exchange coil structure can be part of the liquid outlet pipeline 31 and / or the liquid return pipeline 32. The heat exchange coil structure can also be a separate structure provided independently of the liquid outlet pipeline 31 and the liquid return pipeline 32. In this case, the heat exchange coil structure is connected between the liquid outlet pipeline 31 and the liquid return pipeline 32. The methanol engine assembly 8 includes at least a methanol engine and a fuel supply system. The fuel supply system includes a methanol storage structure having a methanol storage chamber. Starting the methanol engine assembly 8 is equivalent to starting the methanol engine.

[0062] Compared with the traditional methanol warming heat exchange device, the embodiment of the present application adds a heat exchanger 2. The exhaust gas generated by the methanol burner 1 burning methanol flows into the gas flow channel 25 of the heat exchanger 2, and exchanges heat with the circulating liquid flowing into the liquid flow channel 26 of the heat exchanger 2, thereby realizing the first step of heating the circulating liquid; the circulating liquid heated in the first step is then circulated into the methanol burner 1, and is directly heated by burning methanol through the methanol burner 1, thereby realizing the second step of heating the circulating liquid. As described above, the heat in the exhaust gas emitted by the methanol burner 1 is effectively recovered and reused, and the heat that would have been wasted is reused, which effectively improves the efficiency of thermal energy utilization, reduces waste, and saves a lot of energy costs. Under the premise that the heat in the exhaust gas completes the first step of heating the circulating fluid, the heating time of the circulating fluid by the methanol burner 1 can be reduced accordingly, which not only reduces the consumption of methanol fuel, but also is more energy-saving and environmentally friendly. It also shortens the heating time of the circulating fluid, allowing the methanol engine assembly 8 to quickly heat up to a suitable temperature, reducing the start-up time and avoiding long waiting times for the driver. After the methanol engine assembly 8 is heated, the methanol fuel is fully burned, reducing greenhouse gas emissions and playing a positive role in environmental protection. Reusing the heat from the exhaust gas after methanol combustion is a cleaner and more sustainable way of utilizing energy.

[0063] It should be further explained that in some embodiments, please refer to the attached Figure 1 The exhaust gas discharge port 11, the first liquid inlet 12, and the first liquid outlet 13 are communication ports respectively provided on the shell of the methanol burner 1. The exhaust gas discharge port 11 can be connected to the exhaust gas discharge joint pipe, the first liquid inlet 12 can be connected to the first liquid inlet joint pipe, and the first liquid outlet 13 can be connected to the first liquid outlet joint pipe. In some parallel embodiments, the shell of the methanol burner 1 is provided with multiple communication ports, and the multiple communication ports are sequentially connected to the exhaust gas discharge joint pipe, the first liquid inlet joint pipe, and the first liquid outlet joint pipe. The opening of the exhaust gas discharge joint pipe away from the communication port is the exhaust gas discharge port 11, the opening of the first liquid inlet joint pipe away from the communication port is the first liquid inlet 12, and the opening of the first liquid outlet joint pipe away from the communication port is the first liquid outlet 13.

[0064] Further, in some embodiments, please refer to the attached Figure 1 The air inlet 21, the air outlet 22, the second liquid inlet 23, and the second liquid outlet 24 are communication ports respectively provided on the shell of the heat exchanger 2. The air inlet 21 can be connected to an air inlet joint pipe, the air outlet 22 can be connected to an air outlet joint pipe, the second liquid inlet 23 can be connected to a second liquid inlet joint pipe, and the second liquid outlet 24 can be connected to a second liquid outlet joint pipe. In some parallel embodiments, please refer to the attached Figure 2The shell of the heat exchanger 2 is provided with a plurality of connecting ports, which are connected in sequence with an air inlet joint pipe, an air outlet joint pipe, a second liquid inlet joint pipe, and a second liquid outlet joint pipe. The opening of the air inlet joint pipe away from the connecting port is the air inlet 21, the opening of the air outlet joint pipe away from the connecting port is the air outlet 22, the opening of the second liquid inlet joint pipe away from the connecting port is the second liquid inlet 23, and the opening of the second liquid outlet joint pipe away from the connecting port is the second liquid outlet 24.

[0065] In some embodiments of this application, please refer to the attached Figure 3 The gas flow channel 25 includes an inlet flow channel main channel 251 communicating with the gas inlet 21, an outlet flow channel main channel 252 communicating with the gas outlet 22, and a plurality of gas flow channel branches 253 connected in parallel between the inlet flow channel main channel 251 and the outlet flow channel main channel 252. Figure 4 The liquid flow channel 26 includes a main liquid inlet channel 261 connected to the second liquid inlet 23, a main liquid outlet channel 262 connected to the second liquid outlet 24, and a plurality of liquid flow channel branches 263 connected in parallel between the main liquid inlet channel 261 and the main liquid outlet channel 262. Figure 2-4 The gas flow branch 253 and the liquid flow branch 263 are arranged crosswise.

[0066] It should be noted that the multiple gas flow branch paths 253 extend in the same direction, and the multiple liquid flow branch paths 263 extend in the same direction. The "extension direction of the gas flow branch path 253" refers to the direction from the end of the gas flow branch path 253 connected to the inlet flow channel main path 251 to the end of the gas flow branch path 253 connected to the outlet flow channel main path 252, and is irrelevant to whether the exhaust gas flow path within the gas flow branch path 253 is reciprocating and undulating. The "extension direction of the liquid flow branch path 263" refers to the direction from the end of the liquid flow branch path 263 connected to the inlet flow channel main path 261 to the end of the liquid flow branch path 263 connected to the outlet flow channel main path 262, and is irrelevant to whether the circulation path of the circulating liquid within the liquid flow branch path 263 is reciprocating and undulating.

[0067] As described above, the contact area between the gas flow channel 25 and the liquid flow channel 26 is greatly increased, so that the exhaust gas located in the multiple gas flow channel branches 253 and the circulating liquid located in the multiple liquid flow channel branches 263 have sufficient heat exchange area, thereby improving the heat exchange efficiency, ensuring the heat exchange effect, and making full use of the waste heat in the exhaust gas.

[0068] Please see the attached Figure 2-4 In certain embodiments of the present application, the gas flow channel branch 253 is a corrugated gas flow channel. Furthermore, the liquid flow channel branch 263 is a corrugated liquid flow channel.

[0069] As described above, the exhaust gas flow path within gas flow branch 253 and the circulating liquid flow path within liquid flow branch 263 are significantly increased, thereby increasing the heat exchange time between the exhaust gas within gas flow branch 253 and the circulating liquid within liquid flow branch 263. This improves heat exchange efficiency, ensures heat exchange effects, and fully utilizes the waste heat in the exhaust gas. Furthermore, the gas flow path of the corrugated gas flow channel is smooth and unobstructed, facilitating the flow of exhaust gas; the liquid flow path of the corrugated liquid flow channel is smooth and unobstructed, facilitating the flow of circulating liquid.

[0070] Please see the attached Figure 2 In some embodiments, the extension direction of the gas flow branch 253 is perpendicular to the extension direction of the liquid flow branch 263.

[0071] As described above, not only does it make the design and manufacturing of the workpiece simpler and more standardized, reducing complex design and manufacturing processes and improving production efficiency, but it also helps to form gas flow branch paths 253 and liquid flow branch paths 263 that are evenly arranged and highly consistent.

[0072] Please see the attached Figure 2-4 In certain embodiments of the present application, the heat exchanger 2 includes a heat exchange fin assembly 4, which includes at least a first heat exchange fin, a second heat exchange fin, and a third heat exchange fin arranged in a stacked manner. A first flow channel is defined on at least one of the two opposing side surfaces of the first heat exchange fin and the second heat exchange fin. The first heat exchange fin and the second heat exchange fin are butted together, so that the first flow channel forms a circumferentially sealed gas flow channel 25. A second flow channel is defined on at least one of the two opposing side surfaces of the second heat exchange fin and the third heat exchange fin. The second heat exchange fin and the third heat exchange fin are butted together, so that the second flow channel forms a circumferentially sealed liquid flow channel 26.

[0073] Optionally, a first flow channel groove is formed on the first heat exchange plate, a surface of the second heat exchange plate adjacent to the first flow channel groove is flat, and the second heat exchange plate is butted against the first heat exchange plate to close the first flow channel groove, thereby forming a circumferentially closed gas flow channel 25. In some parallel embodiments, a first flow channel groove is formed on the second heat exchange plate, a surface of the first heat exchange plate adjacent to the first flow channel groove is flat, and the first heat exchange plate is butted against the second heat exchange plate to close the first flow channel groove, thereby forming a circumferentially closed gas flow channel 25. In some other parallel embodiments, first flow channel grooves are formed in opposing regions of the first and second heat exchange plates, and the first heat exchange plate is butted against the second heat exchange plate to seal the opposing first flow channel grooves, thereby forming a circumferentially closed gas flow channel 25.

[0074] Optionally, a second flow channel groove is provided on the third heat exchange plate, and the side surface of the second heat exchange plate close to the second flow channel groove is a plane, and the second heat exchange plate and the third heat exchange plate are butted together to close the second flow channel groove, forming a circumferentially closed liquid flow channel 26. In some parallel embodiments, a second flow channel groove is provided on the second heat exchange plate, and the side surface of the third heat exchange plate close to the second flow channel groove is a plane, and the third heat exchange plate and the second heat exchange plate are butted together to close the second flow channel groove, forming a circumferentially closed liquid flow channel 26. In some other parallel embodiments, second flow channel grooves are provided in the opposite areas of the second heat exchange plate and the third heat exchange plate, and the second heat exchange plate and the third heat exchange plate are butted together to seal the two opposite second flow channel grooves, forming a circumferentially closed liquid flow channel 26.

[0075] It should be noted that the heat exchanger assembly 4 may further include a fourth heat exchanger fin, located on the side of the first heat exchanger fin away from the second heat exchanger fin, wherein at least one of the two opposing sides of the first heat exchanger fin and the fourth heat exchanger fin also has a second flow channel groove, and the first heat exchanger fin and the fourth heat exchanger fin are connected so that the second flow channel groove forms another circumferentially sealed liquid flow channel 26. Similarly, the heat exchanger fin assembly 4 may further include a fifth heat exchanger fin, located on the side of the third heat exchanger fin away from the second heat exchanger fin, wherein at least one of the two opposing sides of the third heat exchanger fin and the fifth heat exchanger fin also has a first flow channel groove, and the third heat exchanger fin and the fifth heat exchanger fin are connected so that the first flow channel groove forms another circumferentially sealed gas flow channel 25. Similarly, the number of heat exchanger fins provided in the heat exchanger fin assembly 4 may be greater, as long as the gas flow channels 25 and liquid flow channels 26 formed by the connection of adjacent heat exchanger fins are arranged in a cyclical order of one gas flow channel 25 and one liquid flow channel 26.

[0076] As described above, by forming the first flow channel groove and the second flow channel groove on the heat exchanger in the heat exchanger group 4, the gas flow channel 25 and the liquid flow channel 26 can be obtained accordingly. The gas flow channel 25 and the liquid flow channel 26 can be made by stamping, laser cutting, CNC milling, chemical etching, casting and other processes, which are convenient for processing and molding, and save manufacturing costs. Furthermore, the heat of the exhaust gas in the gas flow channel 25 diffuses into the heat exchanger, and the heat is transferred to the circulating liquid in the liquid flow channel 26 through the heat exchanger for heat exchange. The heat exchanger has a sufficiently large heat exchange area, which greatly improves the heat exchange efficiency of the exhaust gas and the circulating liquid. In addition, the structure of the stacked heat exchanger is compact and can be modularly designed to adjust the heat exchange area by increasing or decreasing the number of stacked heat exchangers to adapt to the displacement or requirements of different methanol engine assemblies 8. At the same time, the heat exchanger can be easily disassembled and cleaned, which facilitates the maintenance and replacement of the heat exchanger group 4.

[0077] Please see the attached Figure 2-4In certain embodiments of the present application, multiple heat exchange plate groups 4 are provided, and at least some of the heat exchange plate groups 4 are detachable, so that the number of heat exchange plate groups 4 provided in the heat exchanger 2 can be adjusted.

[0078] It should be noted that there are multiple groups of heat exchange fin groups 4 arranged at intervals, and the interval arrangement direction of the heat exchange fin groups 4 is perpendicular to the stacking arrangement direction of the multiple heat exchange fins in the heat exchange fin group 4.

[0079] Please see the attached Figure 3-4 The heat exchanger fin group 4 is formed with an air inlet connector 41, an air outlet connector 42, a liquid inlet connector 43, and a liquid outlet connector 44. The "detachable arrangement of the heat exchanger fin group 4" means that the air outlet connector 42 of the preceding heat exchanger fin group 4 is detachably connected to the air inlet connector 41 of the succeeding heat exchanger fin group 4, and the liquid outlet connector 44 of the preceding heat exchanger fin group 4 is detachably connected to the liquid inlet connector 43 of the succeeding heat exchanger fin group 4. Furthermore, the air outlet connector 42 of the preceding heat exchanger fin group 4 and the air inlet connector 41 of the succeeding heat exchanger fin group 4 can be connected via a stainless steel bellows, and the liquid outlet connector 44 of the preceding heat exchanger fin group 4 and the liquid inlet connector 43 of the succeeding heat exchanger fin group 4 can be connected via a methanol-resistant hose.

[0080] In some embodiments, only one heat exchange plate group 4 is provided in the heat exchanger 2; in this case, the air inlet connector 41 is connected to the air inlet 21, the air outlet connector 42 is connected to the air outlet 22, the liquid inlet connector 43 is connected to the second liquid inlet 23, and the liquid outlet connector 44 is connected to the second liquid outlet 24. In some parallel embodiments, two, three or more heat exchange plate groups 4 are provided in the heat exchanger 2; at this time, the air inlet connector 41 of the first heat exchange plate group 4 is connected to the air inlet 21, and the liquid inlet connector 43 is connected to the second liquid inlet 23; the air outlet connector 42 of the last heat exchange plate group 4 is connected to the air outlet 22, and the liquid outlet connector 44 is connected to the second liquid outlet 24; the air outlet connector 42 of the previous heat exchange plate group 4 in adjacent heat exchange plate groups 4 is connected to the air inlet connector 41 of the next heat exchange plate group 4, and the liquid outlet connector 44 of the previous heat exchange plate group 4 is connected to the liquid inlet connector 43 of the next heat exchange plate group 4; as above, an S-shaped reciprocating movement of the exhaust gas and the circulating liquid is formed between the multiple heat exchange plate groups 4, thereby extending the heat exchange time of the exhaust gas and the circulating liquid.

[0081] As mentioned above, the number of heat exchanger fin groups 4 in the heat exchanger 2 can be increased or decreased according to the displacement and demand of the methanol engine assembly 8, while facilitating regular inspection and maintenance, and timely detection and treatment of corrosion problems.

[0082] In some embodiments, a honeycomb structure is formed on the surface of the heat exchange fins of the heat exchange fin group 4 .

[0083] It should be noted that the surface of each heat exchange fin forming the gas flow channel 25 or liquid flow channel 26 is provided with a honeycomb structure. The honeycomb structure formed on the surface of the heat exchange fins can be made of corrosion-resistant stainless steel or copper to achieve methanol corrosion resistance and high-temperature durability within the heat exchanger 2. Forming a honeycomb structure on the surface of the heat exchange fins increases the heat exchange area, optimizes the flow of exhaust gas and circulating liquid, and improves sealing performance. The design and application of the honeycomb structure significantly improves the heat transfer efficiency and performance of the heat exchanger 2.

[0084] In certain embodiments of the present application, the exhaust gas outlet 11, the air inlet 21, and the air outlet 22 are all standard interfaces; further, the diameter of each standard interface for circulating exhaust gas is 65 mm.

[0085] In some embodiments, the first liquid inlet 12, the first liquid outlet 13, the second liquid inlet 23, the second liquid outlet 24, the port of the liquid outlet line 31, and the port of the liquid return line 32 are all standard interfaces. Furthermore, the diameter of each of these standard interfaces for circulating liquid is 35 mm. "Standard interfaces" refers to a series of standardized connection interfaces developed to ensure compatibility and interchangeability.

[0086] As described above, the standard interface connection of the methanol burner 1, the heat exchanger 2, the liquid outlet pipeline 31, and the liquid return pipeline 32 is realized, which improves the compatibility and scalability of the system and can be combined and configured according to actual needs.

[0087] In some embodiments, the air inlet connector 41, air outlet connector 42, liquid inlet connector 43, and liquid outlet connector 44 of the heat exchanger fin assembly 4 of the heat exchanger 2 are all standard connectors. Furthermore, the diameter of each standard connector for exhaust gas is 65 mm, and the diameter of each standard connector for circulating liquid is 35 mm. "Standard connectors" refer to a series of standardized connectors developed to ensure compatibility and interchangeability.

[0088] As described above, a modular structural design of the heat exchanger 2 is realized, which facilitates the detachable setting of the heat exchange plate group 4, facilitates installation, maintenance and upgrading, improves the compatibility and scalability of the heat exchanger 2, and can be combined and configured according to actual needs.

[0089] Please see the attached Figure 2 In certain embodiments of the present application, the shell of the heat exchanger 2 is covered with a thermal insulation layer 7; the thermal insulation layer 7 is made of a thermal insulation material.

[0090] It should be noted that the exhaust port 11 is connected to the air inlet 21 through a gas pipeline. The connection parts between the exhaust port 11 and the gas pipeline, and the connection parts between the air inlet 21 and the gas pipeline, are all covered with thermal insulation materials to enhance thermal insulation and ensure that heat can be effectively transferred to the circulating fluid. Furthermore, the shell of the heat exchanger 2 can be made of thermal insulation materials, and the thermal insulation material used to make the shell of the heat exchanger 2 is ceramic fiber. As described above, the shell of the heat exchanger 2 and the thermal insulation layer 7 work together to reduce the loss of exhaust heat to the outside of the heat exchanger 2, fully ensuring the heat exchange effect between the high-temperature exhaust gas and the low-temperature circulating fluid.

[0091] In certain embodiments of the present application, the thermal insulation layer 7 is one of a ceramic fiber insulation layer made of ceramic fiber material, a mineral wool insulation layer made of mineral wool, a glass wool insulation layer made of mineral wool, a polyurethane foam insulation layer made of polyurethane foam, a polystyrene foam insulation layer made of polystyrene foam, etc. Preferably, the thermal insulation layer 7 is a thermal insulation layer such as a mineral wool insulation layer or a glass wool insulation layer.

[0092] As mentioned above, the thermal insulation layer 7 made of the above-mentioned material has low cost, good thermal insulation effect and is easy to obtain; the material of the thermal insulation layer 7 can be selected according to actual needs and has strong flexibility and applicability.

[0093] Furthermore, the thickness of the thermal insulation layer 7 is 10 mm to 20 mm; for example, the thickness of the thermal insulation layer 7 is any one of 10 mm, 12 mm, 15 mm, 18 mm, 20 mm, etc.

[0094] As described above, the thickness of the heat insulation layer 7 is limited. On the premise of ensuring the heat insulation effect, the thickness is not too thick, thereby avoiding unnecessary waste of material and preventing the structural size of the heat exchanger 2 from being too large and occupying a large space.

[0095] Please see the attached Figure 1 In certain embodiments of the present application, the heat exchange device includes a liquid pump 5 for driving the circulation of the circulating liquid. The liquid pump 5 is disposed on the liquid outlet pipe 31 or the liquid return pipe 32. Preferably, the liquid pump 5 is disposed on the liquid return pipe 32. As described above, the provision of the liquid pump 5 provides circulation power for the circulating liquid, allowing the circulating liquid to flow smoothly in the closed circulation path of the heat exchange device.

[0096] In some embodiments, the methanol inlet 14 of the methanol burner 1 is connected to the methanol storage chamber of the methanol engine assembly 8. As described above, the need for an independent methanol storage structure for the methanol burner 1 is eliminated, simplifying the structure of the heat exchange device and reducing the space occupied.

[0097] Furthermore, the methanol inlet 14 is connected to the methanol storage chamber through the methanol delivery pipeline 6; a control valve is provided on the methanol delivery pipeline 6.

[0098] In summary, the present application further provides a vehicle, which includes a methanol engine assembly 8 and a heat exchange device for heating the methanol engine assembly 8, wherein the heat exchange device is the heat exchange device described above.

[0099] Since the vehicle of the present application includes the heat exchange device described above, the beneficial effects of the heat exchange device on the vehicle can be found above and will not be repeated here.

[0100] The basic principles of the present application have been described above in conjunction with specific embodiments. However, it should be noted that the advantages, strengths, and effects mentioned in this application are merely illustrative and not restrictive, and it should not be assumed that these advantages, strengths, and effects are required of each embodiment of this application. In addition, the specific details disclosed above are merely illustrative and facilitating understanding, and are not restrictive. The above details do not limit this application to necessarily being implemented using the above specific details.

[0101] The block diagrams of the devices, devices, equipment, and systems involved in this application are merely illustrative examples and are not intended to require or imply that they must be connected, arranged, or configured in the manner shown in the block diagrams. As will be appreciated by those skilled in the art, these devices, devices, equipment, and systems can be connected, arranged, or configured in any manner. Words such as "include," "comprise," "have," and the like are open-ended words, meaning "including but not limited to," and can be used interchangeably therewith. The words "or" and "and" used herein refer to the words "and / or" and can be used interchangeably therewith, unless the context clearly indicates otherwise. The word "such as" used herein refers to the phrase "such as but not limited to," and can be used interchangeably therewith.

[0102] It should also be noted that in the apparatus, device, and method of the present application, each component or each step can be decomposed and / or recombined, and such decomposition and / or recombination should be regarded as equivalent solutions of the present application.

[0103] The above description of the disclosed aspects is provided to enable any person skilled in the art to make or use the present application. Various modifications to these aspects will be readily apparent to those skilled in the art, and the general principles defined herein may be applied to other aspects without departing from the scope of the present application. Therefore, the present application is not intended to be limited to the aspects shown herein, but rather to be accorded the widest scope consistent with the principles and novel features disclosed herein.

[0104] It should be understood that the qualifiers "first", "second", "third", "fourth", "fifth" and "sixth" used in the description of the embodiments of the present application are only used to more clearly illustrate the technical solutions and cannot be used to limit the scope of protection of the present application.

[0105] The above description has been provided for the purpose of illustration and description. Furthermore, this description is not intended to limit the embodiments of the present application to the forms disclosed herein. Although a number of example aspects and embodiments have been discussed above, those skilled in the art will recognize certain variations, modifications, alterations, additions, and sub-combinations thereof.

Claims

1. A heat exchange device, characterized in that: Used to warm up the methanol engine assembly, including: A methanol burner (1) comprises an exhaust gas discharge port (11) for discharging exhaust gas generated by combustion of the methanol burner (1), a first liquid inlet (12) for inletting circulating liquid, and a first liquid outlet (13) for outlet of the circulating liquid; A heat exchanger (2), comprising an air inlet (21), an air outlet (22), a second liquid inlet (23), a second liquid outlet (24), a gas flow channel (25) connecting the air inlet (21) and the air outlet (22), and a liquid flow channel (26) connecting the second liquid inlet (23) and the second liquid outlet (24); A circulating liquid pipeline (3) for supplying the circulating liquid, comprising a liquid outlet pipeline (31) and a liquid return pipeline (32); Wherein, the tail gas discharge port (11) is connected to the air inlet (21), and the liquid outlet pipeline (31) is connected to the second liquid inlet (23); The second liquid outlet (24) is in communication with the first liquid inlet (12); The first liquid outlet (13) is in communication with the liquid return pipeline (32).

2. The heat exchange device according to claim 1, characterized in that: The gas flow channel (25) comprises an inlet flow channel main path (251) communicating with the gas inlet (21), an outlet flow channel main path (252) communicating with the gas outlet (22), and a plurality of gas flow channel branches (253) connected in parallel between the inlet flow channel main path (251) and the outlet flow channel main path (252); The liquid flow channel (26) comprises a main liquid flow channel (261) communicating with the second liquid inlet (23), a main liquid flow channel (262) communicating with the second liquid outlet (24), and a plurality of liquid flow channel branches (263) connected in parallel between the main liquid flow channel (261) and the main liquid flow channel (262). Wherein, the gas flow channel branch (253) and the liquid flow channel branch (263) are arranged crosswise.

3. The heat exchange device according to claim 2, characterized in that: The gas flow channel branch (253) is a corrugated gas flow channel; and / or, The liquid flow channel branch (263) is a corrugated liquid flow channel; and / or, The extension direction of the gas flow channel branch (253) is perpendicular to the extension direction of the liquid flow channel branch (263).

4. The heat exchange device according to claim 1, characterized in that The heat exchanger (2) comprises a heat exchange fin group (4), wherein the heat exchange fin group (4) comprises at least a first heat exchange fin, a second heat exchange fin, and a third heat exchange fin arranged in a stacked manner; At least one of the two opposite side surfaces of the first heat exchange plate and the second heat exchange plate is provided with a first flow channel groove, and the first heat exchange plate and the second heat exchange plate are butted against each other so that the first flow channel groove forms the circumferentially sealed gas flow channel (25); At least one of the two side surfaces of the second heat exchange plate opposite to the third heat exchange plate is provided with a second flow channel groove, and the second heat exchange plate is butted against the third heat exchange plate so that the second flow channel groove forms the circumferentially sealed liquid flow channel (26).

5. The heat exchange device according to claim 4, characterized in that: The heat exchange fin groups (4) are provided in a plurality of groups, and at least some of the heat exchange fin groups (4) are detachably provided, so that the number of the heat exchange fin groups (4) provided in the heat exchanger (2) is adjustable; and / or, The heat exchange fins of the heat exchange fin group (4) are formed with a honeycomb structure on their surfaces.

6. The heat exchange device according to claim 1, characterized in that: The tail gas discharge port (11), the air inlet (21), and the air outlet (22) are all standard interfaces; and / or, The first liquid inlet (12), the first liquid outlet (13), the second liquid inlet (23), the second liquid outlet (24), the port of the liquid outlet pipeline (31), and the port of the liquid return pipeline (32) are all standard interfaces; and / or, The air inlet joint, air outlet joint, liquid inlet joint, and liquid outlet joint in the heat exchange plate group (4) of the heat exchanger (2) are all standard joints.

7. The heat exchange device according to claim 1, characterized in that: The shell of the heat exchanger (2) is coated with a heat insulation layer.

8. The heat exchange device according to claim 7, characterized in that: The thermal insulation layer is one of a ceramic fiber insulation layer, a mineral wool insulation layer, a glass wool insulation layer, a polyurethane foam insulation layer, and a polystyrene foam insulation layer; and / or, The thickness of the heat insulation layer is 10mm-20mm.

9. The heat exchange device according to any one of claims 1 to 8, characterized in that: The heat exchange device comprises a liquid pump (5) for driving the circulating liquid to circulate, and the liquid pump (5) is arranged on the liquid outlet pipeline (31) or the liquid return pipeline (32); and / or, The methanol inlet (14) of the methanol burner (1) is in communication with the methanol storage chamber of the methanol engine assembly.

10. A vehicle comprising a methanol engine assembly and a heat exchange device for heating the methanol engine assembly, characterized in that: The heat exchange device is the heat exchange device according to any one of claims 1 to 9.

Images