Sheet-type graphene heating device for vehicle methanol fuel and heating method of sheet-type graphene heating device

Abstract

The invention discloses a sheet type graphene heating device for vehicle methanol fuel and a heating method of the sheet type graphene heating device, and belongs to the technical field of heating devices.The sheet type graphene heating device for the vehicle methanol fuel comprises an oil tank used for containing the methanol fuel, the oil tank is sleeved with a protection box, and a plurality of graphene heating sheets making contact with the bottom face of the oil tank are installed on the inner bottom face of the protection box; the device further comprises a moving mechanism, two stirring mechanisms and a driving mechanism. According to the plate type graphene heating device for the vehicle methanol fuel, the graphene heating plates, the protection box, the moving mechanism and the stirring mechanism are arranged, the multiple graphene heating plates are started to heat the oil tank, then the methanol fuel in the oil tank is heated, and meanwhile, multiple stirring rods in the stirring mechanism rotate and move up and down in the oil tank, so that the methanol fuel in the oil tank is heated; methanol at the middle upper part of the oil tank is mixed to avoid temperature stratification with cold upper part and hot lower part.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of warmers, and particularly relates to a sheet type graphene warmer for vehicle methanol fuel and a warming method thereof. BACKGROUND

[0002] With the transformation of global energy structure and the tightening of environmental protection regulations, methanol fuel has become an important alternative to traditional fossil fuels for vehicles due to its low carbon emissions (about 20%-30% lower than traditional gasoline), controllable production cost and abundant resources, and its application in commercial vehicles and passenger vehicles is gradually expanding. However, the physicochemical properties of methanol fuel determine that its low-temperature performance has a significant shortcoming - in an environment below-10 DEG C, the viscosity of methanol will increase from 0.59 mPa s at 20 DEG C to more than 1.2 mPa s, and the flowability will decrease significantly, and trace water-absorbing impurities in the fuel will easily precipitate and freeze, resulting in difficult fuel injection atomization and engine start failure. Therefore, the low-temperature warming technology of vehicle methanol fuel has become a core bottleneck for its large-scale application.

[0003] In recent years, graphene materials have been introduced into the warming field due to their ultra-high thermal conductivity, and graphene-based heating devices have appeared. However, the existing graphene warmers still have the following shortcomings:

[0004] Firstly, the existing graphene warmers generally use traditional static heating, which cannot achieve uniform heating of methanol fuel in the fuel tank, resulting in coexistence of local overheating and low-temperature areas.

[0005] Secondly, although some graphene warmers are provided with stirring mechanisms, the stirring mechanisms can only realize horizontal stirring, and the disturbance effect on the methanol fuel in the fuel tank is insufficient, and most stirring mechanisms are driven by penetrating the fuel tank through a motor shaft, although a sealing rubber ring is used for sealing, but long-term vehicle vibration can easily cause sealing failure, which has serious safety hazards. SUMMARY

[0006] The application aims to provide a sheet type graphene warmer for vehicle methanol fuel and a warming method thereof, which solves the technical problem that some graphene warmers in the prior art are provided with stirring mechanisms, but the stirring mechanisms can only realize horizontal stirring and have insufficient disturbance effect on the methanol fuel in the fuel tank.

[0007] In order to achieve the above-mentioned purpose, the application adopts the following technical solutions:

[0008] The methanol fuel for vehicle is warmed by graphene heater, which comprises an oil tank for containing methanol fuel, a protective box is sleeved on the oil tank, a plurality of graphene heating sheets are installed on the inner bottom surface of the protective box and contact with the bottom surface of the oil tank, and a moving mechanism is located in the oil tank and comprises a moving plate, three groups of mounting plates are arranged on the bottom surface of the moving plate, a horizontal shaft is rotatably installed on each mounting plate, a moving wheel is installed on the horizontal shaft and contacts with the inner bottom surface of the oil tank, the moving wheel has magnetic property, two groups of stirring mechanisms are installed on the moving plate, each stirring mechanism comprises a reciprocating screw rod which is rotatably connected with the moving plate, a square inserting rod is installed on the upper end of the reciprocating screw rod, a second bevel gear is installed on the lower end of the reciprocating screw rod, the second bevel gear is meshingly connected with a first bevel gear which is installed on the middle horizontal shaft, a horizontal plate is slidably connected with the square inserting rod, a plurality of stirring rods are installed on the top surface of the horizontal plate, and a screw nut is sleeved on the reciprocating screw rod, a sliding rod is slidably connected with the moving plate and is installed on the outer side surface of the screw nut, the sliding rod is fixedly connected with the bottom surface of the horizontal plate, and a driving mechanism is used for driving the three moving wheels to move through magnetic transmission.

[0009] Preferably, the moving mechanism further comprises six gears which are fixedly sleeved on both ends of the three horizontal shafts and are meshingly connected with the two racks respectively, and six stabilizing wheels which are fixedly connected with the three horizontal shafts and are located in the two mounting frames respectively.

[0010] Preferably, the moving mechanism further comprises six gears which are fixedly sleeved on both ends of the three horizontal shafts and are meshingly connected with the two racks respectively, and six stabilizing wheels which are fixedly connected with the three horizontal shafts and are located in the two mounting frames respectively.

[0011] Preferably, a groove is formed in the inner bottom surface of the protective box, and the three moving wheels are located above the groove.

[0012] Preferably, the driving mechanism comprises a motor which is installed in the groove, a screw rod which is fixedly connected with the power output shaft of the motor and has a first screw nut sleeved thereon, and a magnet block which is slidably connected with the groove and is fixedly sleeved on the first screw nut.

[0013] Preferably, the moving mechanism further comprises six spiral blades which are installed on the three horizontal shafts respectively.

[0014] Preferably, a plurality of disturbance mechanisms are further included, and the disturbance mechanism comprises a cylinder which is installed on the moving plate and an impeller which is located in the cylinder and is rotatably connected with the moving plate.

[0015] Preferably, the magnet block is an N52 type neodymium iron boron magnet, the wheel core of the moving wheel is made of N52 type neodymium iron boron permanent magnet material, the rim of the moving wheel is wrapped with a composite layer with a thickness of 2 mm, and the composite layer is a composite material of graphene reinforced nylon.

[0016] The heating method of the sheet type graphene heater for vehicle methanol fuel includes the following steps: step one, starting the multiple graphene heating sheets installed on the inner bottom surface of the protection box to heat the oil tank shell, and then heat the methanol fuel in the oil tank; step two, starting the motor to drive the screw rod to rotate synchronously, and then drive the magnet block to slide along the groove; the magnet block is attracted to the moving wheel on the inner bottom surface of the oil tank by magnetic force, and the moving magnet block will drive the moving wheel to move along the inner bottom surface of the oil tank synchronously; step three, when the moving wheel moves, the cross shaft moves synchronously, the gear is driven to rotate by the meshing action of the rack, and then drives the cross shaft to rotate around its own axis; step four, when the middle cross shaft rotates, the two first bevel gears fixedly installed thereon rotate synchronously, the first bevel gear meshes with the second bevel gear installed at the lower end of the reciprocating screw rod, and then drives the reciprocating screw rod to rotate around its own axis; the rotation of the reciprocating screw rod transmits torque through the square inserting rod, drives the horizontal plate and the multiple stirring rods installed on the top surface of the horizontal plate to rotate synchronously, and the rotating stirring rods stir the methanol fuel in the upper region of the oil tank; at the same time, the screw nut sleeved on the reciprocating screw rod moves up and down along the axial direction of the reciprocating screw rod, and then drives the horizontal plate and the stirring rods to move up and down synchronously through the slide rod, so that the stirring rods cover the methanol fuel at different heights in the oil tank; step five, with the rotation of the three cross shafts, the six spiral blades rotate synchronously, push the methanol fuel deposited at the bottom of the oil tank, and drive the methanol fuel deposited at the bottom to move; step six, when the moving plate moves, the four groups of disturbance mechanisms installed on the two side surfaces of the moving plate move synchronously, and the methanol fuel in the edge region of the oil tank is disturbed by the impeller, so as to supplement the stirring blind area of the stirring rods and the spiral blades, and ensure that the methanol fuel in the oil tank is heated uniformly.

[0017] In summary, due to the adoption of the above technical scheme, the present application has the following advantages:

[0018] 1、The sheet type graphene heater for vehicle methanol fuel in the present application heats the oil tank by starting the multiple graphene heating sheets, and then heats the methanol fuel in the oil tank, and at the same time, the multiple stirring rods in the stirring mechanism rotate and move up and down in the oil tank to mix the methanol in the upper region of the oil tank, so as to avoid temperature stratification of cold upper and hot lower.

[0019] 2、The sheet type graphene heater for vehicle methanol fuel in the present application adopts the non-contact transmission mode of external magnet and internal magnetic moving wheel by setting the driving mechanism and the moving wheel with magnetism, without the need to open transmission holes on the oil tank, avoiding the sealing leak of the traditional penetrating type driving, adapting to the characteristics of methanol flammability and volatility, and ensuring that the sealing performance of the oil tank meets the vehicle safety standards.

[0020] 3. The stirring mechanism in this invention is equipped with spiral blades. When the three horizontal shafts rotate, they will drive the spiral blades to rotate synchronously. When the spiral blades rotate, they will generate a thrust on the methanol fuel at the bottom of the tank, causing the methanol fuel deposited at the bottom to mix with the methanol fuel at the top, ensuring that the methanol fuel at the bottom is at the same temperature as the overall tank.

[0021] 4. The disturbance mechanism in this invention is provided with a cylinder and an impeller. When the moving plate moves, it will drive the disturbance mechanism to move synchronously. In turn, the impeller will disturb and stir the methanol fuel in the tank, ensuring that the methanol fuel temperature is uniform throughout the tank and avoiding the methanol at the edge from affecting the overall fuel supply quality due to excessively low temperature. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a perspective view of the plate-type graphene heater for automotive methanol fuel in this invention;

[0024] Figure 2 This is a perspective view of the fuel tank in this invention;

[0025] Figure 3 This is a schematic diagram of the internal structure of the protective box in this invention;

[0026] Figure 4 This is a schematic diagram of the internal structure of the fuel tank in this invention;

[0027] Figure 5 This is a schematic diagram of the assembly structure of the guiding mechanism, moving mechanism, stirring mechanism and disturbance mechanism in this invention;

[0028] Figure 6 In this invention Figure 5 Enlarged schematic diagram of part A;

[0029] Figure 7 This is a schematic diagram of the assembly structure of the moving mechanism and the disturbance mechanism in this invention;

[0030] Figure 8 In this invention Figure 7 Enlarged schematic diagram of part B;

[0031] Figure 9 In this invention Figure 7 Enlarged schematic diagram of part C;

[0032] Figure 10The assembly structure diagram of the stirring mechanism, the horizontal shaft and the spiral blade in the application is shown in the figure.

[0033] Figure 11 The perspective view of the disturbance mechanism in the application is shown in the figure.

[0034] The figure shows: 100, oil tank; 200, protection tank; 201, graphene heating sheet; 202, groove; 210, guiding mechanism; 211, mounting frame; 212, rack; 220, moving mechanism; 221, moving plate; 222, mounting plate; 223, horizontal shaft; 224, moving wheel; 225, first bevel gear; 226, gear; 227, stabilizing wheel; 228, spiral blade; 230, stirring mechanism; 231, reciprocating lead screw; 232, second bevel gear; 233, square insertion rod; 234, horizontal plate; 235, stirring rod; 236, lead screw nut; 237, sliding rod; 240, disturbance mechanism; 241, cylinder; 242, impeller; 250, driving mechanism; 251, motor; 252, lead screw; 253, magnet block. DETAILED DESCRIPTION

[0035] In order to make the above-mentioned objects, features and advantages of the application more obvious and easy to understand, the specific embodiments of the application will be described in detail below in conjunction with the drawings of the specification. Obviously, the described embodiments are part of the embodiments of the application, rather than all the embodiments. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative labor should belong to the protection scope of the application.

[0036] In the following description, many specific details are set forth in order to provide a thorough understanding of the application. However, the application can be practiced without the specific details that are set forth in the following description, in other manners that are consistent with the spirit of the application. Accordingly, the application is not limited to the embodiments described in the following disclosure.

[0037] Secondly, the "one embodiment" or "embodiment" referred to herein means that the specific features, structures or characteristics can be included in at least one implementation of the application. "In one embodiment" appearing in different places in the specification does not mean the same embodiment, nor is it an independent or alternative embodiment that excludes other embodiments.

[0038] The application is described in detail in conjunction with the drawings of the specification. In the detailed description of the embodiments of the application, the cross-sectional view of the device structure is partially enlarged without the general proportion for the convenience of description, and the drawings of the specification are only examples, which should not limit the protection scope of the application here. In addition, the three-dimensional spatial dimensions including length, width and depth should be included in the actual manufacture.

[0039] Meanwhile, in the description of the present application, it should be noted that the terms "first, second or third" are only for the purpose of description and cannot be understood as indicating or implying relative importance.

[0040] Unless otherwise explicitly defined and limited, the terms "mounting, connecting, connecting" in the present application should be understood broadly, for example: it can be fixed connection, detachable connection or integral connection; it can also be mechanical connection, electrical connection or direct connection, it can also be indirectly connected through intermediate medium, or the internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0041] Embodiment 1: as Figure 1 、 Figure 2 、 Figure 4 、 Figure 5 and Figures 7-10 The sheet type graphene heater for vehicle methanol fuel includes an oil tank 100 for containing methanol fuel. The area of the bottom surface of the oil tank 100 corresponding to the groove 202 is made of non-magnetic material, specifically non-magnetic glass fiber reinforced PP material, with a thickness of 3mm.

[0042] The oil tank 100 is sleeved with a protective box 200. The inner bottom surface of the protective box 200 is installed with multiple graphene heating sheets 201 in contact with the bottom surface of the oil tank 100. Specifically, the graphene heating sheets 201 are rectangular sheet structures with a power of 50W. The graphene heating sheets 201 are pasted to the inner bottom surface of the protective box 200 by high-temperature resistant graphene heat-conducting glue, and the multiple graphene heating sheets 201 are connected in series.

[0043] The protective box 200 is composed of three layers of inner, middle and outer layers. The inner and outer layers are modified PP engineering plastics, which have good weather resistance, deformation resistance and low thermal conductivity, and can play a certain heat insulation and heat preservation role. The middle layer is a glass fiber insulation material. The protective box 200 designed in this way can play the roles of heat preservation and protection.

[0044] The sheet type graphene heater for vehicle methanol fuel further includes a moving mechanism 220, two groups of stirring mechanisms 230 and a driving mechanism 250. A battery box is also installed on the side of the protective box 200. The battery box is used to supply power to the multiple graphene heating sheets 201. The battery box is built-in 12V / 24V adaptive vehicle lithium battery, and the output end is connected in series with a 10A overload protection switch.

[0045] The moving mechanism 220 is located in the oil tank 100, and the moving mechanism 220 comprises a moving plate 221, the bottom surface of the moving plate 221 is provided with three groups of mounting plates 222, each group comprises two mounting plates 222, the three groups of mounting plates 222 are all rotationally installed with a horizontal shaft 223, the horizontal shaft 223 is installed with a moving wheel 224 in contact with the inner bottom surface of the oil tank 100, the moving wheel 224 is located directly below the moving plate 221, the wheel core of the moving wheel 224 is made of N52 neodymium-iron-boron permanent magnet material, the surface magnetic field strength thereof is greater than or equal to 5000Gs, the rim is wrapped with a composite layer with a thickness of 2mm, and the composite layer is a graphene reinforced nylon composite material. Two first bevel gears 225 are installed on the middle horizontal shaft 223.

[0046] The two groups of stirring mechanisms 230 are both installed on the moving plate 221, and the stirring mechanism 230 comprises a reciprocating lead screw 231, a horizontal plate 234 and a lead screw nut 236.

[0047] The reciprocating lead screw 231 penetrates through the moving plate 221 and is rotationally connected with the moving plate 221, the upper end of the reciprocating lead screw 231 is installed with a square insertion rod 233, the lower end of the reciprocating lead screw 231 is installed with a second bevel gear 232, the second bevel gear 232 is meshingly connected with the first bevel gear 225; the bottom surface of the horizontal plate 234 is provided with a square insertion slot matched with the square insertion rod 233, the horizontal plate 234 is axially slidably connected with the square insertion rod 233 through the square insertion slot, so that the horizontal plate 234 can move along the length direction of the square insertion rod 233, and the square insertion rod 233 can transmit torque to drive the horizontal plate 234 to synchronously rotate; a plurality of stirring rods 235 are installed on the top surface of the horizontal plate 234; the lead screw nut 236 is sleeved on the reciprocating lead screw 231, the outer side surface of the lead screw nut 236 is installed with a sliding rod 237, the sliding rod 237 penetrates through the moving plate 221 and is vertically slidably connected with the moving plate 221, and the upper end of the sliding rod 237 is fixedly connected with the bottom surface of the horizontal plate 234.

[0048] The driving mechanism 250 is used for driving the three moving wheels 224 to move.

[0049] Specifically, when the methanol fuel in the oil tank 100 needs to be heated, the oil tank 100 is heated by starting the plurality of graphene heating sheets 201, so as to heat the methanol fuel in the oil tank 100.

[0050] Meanwhile, the three moving wheels 224 are driven to move by the driving mechanism 250, so as to drive the three horizontal shafts 223 to rotate, when the middle horizontal shaft 223 rotates, the two first bevel gears 225 are driven to rotate, so as to drive the second bevel gear 232 to rotate, and then drive the reciprocating lead screw 231 to rotate.

[0051] When the reciprocating screw 231 rotates, the square connecting rod 233 drives the horizontal plate 234 and the plurality of stirring rods 235 to rotate, and the rotating stirring rods 235 stir the methanol fuel, so that the methanol fuel in the fuel tank 100 is uniformly heated.

[0052] When the reciprocating screw 231 rotates, the screw nut 236 moves up and down, and then drives the horizontal plate 234 and the stirring rod 235 to move up and down through the slide rod 237, so that the stirring rod 235 stirs the methanol fuel at different heights, and further heats the methanol fuel in the fuel tank 100 uniformly.

[0053] As shown in Figures 5-8 The sheet type graphene heater for vehicle methanol fuel further comprises two sets of guide mechanisms 210, which are respectively installed on the inner walls of the two sides of the fuel tank 100. The guide mechanism 210 comprises a mounting frame 211 and a rack 212. The mounting frame 211 is fixedly connected with the inner wall of the fuel tank 100, and the rack 212 is installed on the mounting frame 211.

[0054] The moving mechanism 220 further comprises six gears 226 and six stabilizing wheels 227. The six gears 226 are respectively fixedly sleeved on both ends of the three horizontal shafts 223, and the six gears 226 are respectively in meshing connection with the two racks 212. The six stabilizing wheels 227 are respectively fixedly connected with the three horizontal shafts 223, and the six stabilizing wheels 227 are respectively located in the two mounting frames 211.

[0055] Specifically, when the moving wheel 224 moves, the horizontal shaft 223 drives the two gears 226 to move. Since the gears 226 are in meshing connection with the racks 212, the gears 226 rotate under the influence of the racks 212, and drive the horizontal shaft 223 to rotate.

[0056] The stabilizing wheel 227 is in contact with the inner top surface of the mounting frame 211. By arranging the stabilizing wheel 227, the gears 226 can be prevented from being separated from the racks 212.

[0057] As shown in Figure 3 The inner bottom surface of the protection box 200 is provided with a groove 202, and the three moving wheels 224 are located directly above the groove 202. The driving mechanism 250 comprises a motor 251, a screw 252 and a magnet block 253. The motor 251 is installed in the groove 202. The screw 252 is fixedly connected with the power output shaft of the motor 251, and a first screw nut is sleeved on the screw 252. The magnet block 253 is in sliding connection with the groove 202, and the magnet block 253 is fixedly sleeved on the first screw nut. The magnet block 253 is an N52 type neodymium iron boron magnet, and the surface magnetic field strength is ≥8000Gs.

[0058] Specifically, by starting the motor 251, the power output shaft of the motor 251 drives the screw rod 252 to rotate, the first screw nut on the screw rod 252 moves axially along the screw rod 252, thereby driving the magnet block 253 to slide along the groove 202. The magnet block 253 is attracted and driven by magnetic force to move the moving wheel 224 synchronously.

[0059] As shown in Figure 7 , the moving mechanism 220 further includes six helical blades 228, and the six helical blades 228 are respectively installed on the three cross shafts 223. The helical blades 228 installed on the same cross shaft 223 are in the same direction and have a gradually decreasing pitch from the middle to the ends, and when rotating, they drive the methanol fuel deposited at the bottom of the fuel tank 100.

[0060] When the moving wheel 224 rotates, the three cross shafts 223 also rotate, thereby driving the six helical blades 228 to rotate. The rotating helical blades 228 will stir the methanol fuel, thereby making the temperature of the methanol fuel in the fuel tank 100 uniform.

[0061] As shown in Figure 7 and Figure 11 , the sheet-type graphene heater for vehicle methanol fuel further includes a plurality of disturbance mechanisms 240. In this embodiment, the number of disturbance mechanisms 240 is four, and the four disturbance mechanisms 240 are respectively installed on the two side surfaces of the moving plate 221. The disturbance mechanism 240 includes a cylinder 241 and an impeller 242. The cylinder 241 is installed on the moving plate 221, and the impeller 242 is located in the cylinder 241. The impeller 242 is rotationally connected with the moving plate 221. The number of blades of the impeller 242 is seven, and the blade inclination angle is 45°, thereby reducing the resistance required for the rotation of the impeller 242.

[0062] Specifically, when the moving plate 221 moves, the cylinder 241 moves relative to the methanol fuel. The methanol fuel enters from one end of the cylinder 241 and flows out from the other end, forming fluid flow. According to the law of conservation of momentum, the flowing methanol fuel will impact the blades of the impeller 242, generating torque to drive the impeller 242 to rotate slowly. The rotating impeller 242 will stir the methanol fuel, thereby further making the temperature of the methanol fuel in the fuel tank 100 uniform.

[0063] Working principle: in specific use, when it is necessary to heat the methanol fuel in the fuel tank 100, the plurality of graphene heating sheets 201 are started to heat the fuel tank 100, thereby heating the methanol fuel in the fuel tank 100.

[0064] Meanwhile, by starting the motor 251, the power output shaft of the motor 251 drives the screw rod 252 to rotate, the first screw nut on the screw rod 252 moves axially along the screw rod 252, thereby driving the magnet block 253 to slide along the groove 202. The magnet block 253 is attracted and driven by magnetic force to move the moving wheel 224 synchronously.

[0065] When the three moving wheels 224 move, they will drive the moving plate 221 to move, which in turn will drive the horizontal shaft 223 and the gear 226 to move. Since the gear 226 is meshed with the rack 212, the gear 226 will rotate under the influence of the rack 212, which will drive the horizontal shaft 223 to rotate.

[0066] When the horizontal shaft 223 in the middle rotates, it drives the two first bevel gears 225 to rotate, which in turn drives the second bevel gear 232 to rotate, which in turn drives the reciprocating screw 231 to rotate. When the reciprocating screw 231 rotates, it drives the horizontal plate 234 and multiple stirring rods 235 to rotate through the square insert rod 233. The rotating stirring rods 235 will stir the methanol fuel.

[0067] Furthermore, when the reciprocating screw 231 rotates, the screw nut 236 moves up and down reciprocally, which in turn drives the horizontal plate 234 and the stirring rod 235 to move up and down reciprocally via the slide rod 237. This causes the stirring rod 235 to stir the methanol fuel at different heights, further ensuring that the methanol fuel in the fuel tank 100 is heated evenly. The rotating and moving stirring rod 235 can cover the upper part of the fuel tank 100, achieving mixing of methanol fuel at different heights and avoiding temperature differences between the top and bottom.

[0068] Furthermore, when the three horizontal shafts 223 rotate, they will drive the six spiral blades 228 to rotate. The rotating spiral blades 228 will stir the methanol fuel, causing the methanol fuel deposited at the bottom of the fuel tank 100 to move and eliminate the low-temperature deposit area at the bottom.

[0069] When the moving plate 221 moves, the cylinder 241 and the methanol fuel move relative to each other. The methanol fuel enters from one end of the cylinder 241 and flows out from the other end, forming a fluid flow. According to the law of conservation of momentum, the flowing methanol fuel will impact the blades of the impeller 242, generating a torque to drive the impeller 242 to rotate. The rotating impeller 242 will stir the methanol fuel, thereby disturbing the methanol in the edge area of ​​the oil tank 100, replenishing the stirring blind zone, and further making the temperature of the methanol fuel in the oil tank 100 uniform.

[0070] Example 2: Figures 1-11 As shown, while all other parts are the same as in Example 1, the difference between this example and Example 1 is that:

[0071] The heating method for a plate-type graphene heater for methanol fuel in vehicles includes the following steps:

[0072] Step 1: Activate the multiple graphene heating elements 201 installed on the bottom surface of the protective box 200. The graphene heating elements 201 conduct heat to the shell of the fuel tank 100 through direct contact with the bottom surface of the fuel tank 100, and then heat the methanol fuel contained inside the fuel tank 100 through the heat transfer effect of the fuel tank 100 shell.

[0073] Step two, start the motor 251 installed in the bottom groove 202 of the protection box 200, the power output shaft of the motor 251 drives the fixed connection with the screw rod 252 synchronous rotation, the first screw nut along the axial direction of the screw rod 252 linear movement, in turn drive the magnet block 253 along the groove 202 sliding;

[0074] The magnet block 253 is attracted to the moving wheel 224 on the bottom surface of the oil tank 100 by magnetic force, and the moving magnet block 253 will drive the moving wheel 224 to move along the bottom surface of the oil tank 100; The moving wheel 224 is installed on the cross shaft 223, and the cross shaft 223 is rotatably installed on the bottom surface of the moving plate 221 through three groups of mounting plates 222. The movement of the moving wheel 224 drives the moving plate 221 and the whole moving mechanism 220 to move along the length direction of the oil tank 100;

[0075] When the moving wheel 224 moves, the cross shaft 223 moves synchronously, and the gear 226 fixedly sleeved on both ends of the cross shaft 223 is engaged with the rack 212 of the guide mechanism 210 on the inner wall of the oil tank 100. During the movement, the gear 226 is rotated by the meshing action of the rack 212, thereby driving the cross shaft 223 to rotate around its axis. At the same time, the stabilizing wheel 227 installed on the cross shaft 223 can avoid the disengagement of the gear 226 and the rack 212, and ensure the stable rotation of the cross shaft 223;

[0076] When the cross shaft 223 located in the middle rotates, the two first bevel gears 225 fixedly installed thereon rotate synchronously, and the first bevel gears 225 are engaged with the second bevel gears 232 installed at the lower end of the reciprocating screw rod 231, thereby driving the reciprocating screw rod 231 to rotate around its axis.

[0077] The square insertion rod 233 installed at the upper end of the reciprocating screw rod 231 is inserted into the square insertion slot in the bottom surface of the cross plate 234. The rotation of the reciprocating screw rod 231 transmits torque through the square insertion rod 233, drives the cross plate 234 and the plurality of stirring rods 235 installed on the top surface of the cross plate 234 to rotate synchronously, and the rotating stirring rods 235 stir the methanol fuel in the upper region of the oil tank 100, break the static state of the fuel, and make the methanol fuel in different regions fully mixed to avoid local overheating or low temperature.

[0078] When the reciprocating screw 231 rotates, the screw nut 236 sleeved thereon moves up and down along the axial direction of the reciprocating screw 231; the sliding rod 237 installed on the outer side of the screw nut 236 penetrates the moving plate 221 and is connected with the moving plate 221 in the vertical direction, the upper end of the sliding rod 237 is fixedly connected with the bottom surface of the horizontal plate 234, and the reciprocating movement of the screw nut 236 drives the horizontal plate 234 and the stirring rod 235 to move up and down synchronously, so that the stirring rod 235 covers the methanol fuel at different heights in the oil tank 100, further improves the mixing uniformity, and ensures that the fuel is heated uniformly.

[0079] In step five, with the rotation of the three horizontal shafts 223, the six spiral blades 228 installed on the horizontal shafts 223 rotate synchronously; when the spiral blades 228 rotate, the methanol fuel deposited at the bottom of the oil tank 100 is pushed to move, further making the temperature of the methanol fuel in the oil tank 100 uniform.

[0080] In step six, when the moving plate 221 moves, the four groups of disturbance mechanisms 240 installed on the two side surfaces thereof move synchronously; the cylinder 241 of the disturbance mechanism 240 moves relative to the methanol fuel in the oil tank 100, the methanol fuel enters from one end of the cylinder 241 and flows out from the other end, forms fluid flow, and then disturbs the methanol fuel in the edge region of the oil tank 100 through the impeller 242, supplements the stirring blind area of the stirring rod 235 and the spiral blade 228, and ensures that the methanol fuel in the whole region of the oil tank 100 is heated uniformly.

[0081] The above is only a preferred embodiment of the present application, but the protection scope of the present application is not limited to this, any person skilled in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

[0082] The preferred embodiments of the present application disclosed above are only used to help explain the present application. The preferred embodiments do not describe all the details, and the present application is not limited to the specific embodiments. Obviously, many modifications and changes can be made according to the content of the present application. The embodiments are selected and described in the present specification in order to better explain the principles and practical applications of the present application, so that the person skilled in the art can well understand and utilize the present application. The present application is limited by the claims and the whole scope and equivalents thereof.

Claims

1. A graphene heating element for methanol fuel in vehicles, comprising a fuel tank for holding methanol fuel, a protective casing fitted over the fuel tank, and a plurality of graphene heating elements in contact with the bottom surface of the protective casing, characterized in that, Also includes: The moving mechanism, located within the fuel tank, includes: The movable plate has three sets of mounting plates on its bottom surface. Each of the three sets of mounting plates is rotatably mounted with a horizontal shaft. The horizontal shaft is equipped with a movable wheel that contacts the bottom surface of the oil tank. The movable wheel is magnetic. Two sets of stirring mechanisms are mounted on the movable plate, and the stirring mechanisms include: A reciprocating lead screw is rotatably connected to the moving plate. A square plug rod is installed at its upper end, and a second bevel gear is installed at its lower end. The second bevel gear meshes with a first bevel gear installed on the middle horizontal shaft. A horizontal plate is slidably connected to the square insert rod, and multiple stirring rods are installed on its top surface; A lead screw nut is sleeved on the reciprocating lead screw, and a slide rod that is slidably connected to the moving plate is installed on its outer side. The slide rod is fixedly connected to the bottom surface of the horizontal plate. A drive mechanism is used to move the three moving wheels by means of magnetic transmission.

2. The plate graphene heater for automotive methanol fuel according to claim 1, characterized in that, It also includes two sets of guiding mechanisms, which are respectively installed on the inner walls of both sides of the oil tank. The guiding mechanisms include: The mounting frame is fixedly connected to the inner wall of the fuel tank; A rack is mounted on the mounting frame.

3. The plate graphene heater for automotive methanol fuel according to claim 2, characterized in that, The mobile mechanism also includes: Six gears are fixedly sleeved at both ends of the three horizontal shafts and respectively mesh with the two racks; Six stabilizing wheels are fixedly connected to the three horizontal axes respectively, and are located in the two mounting frames respectively.

4. The plate graphene heater for automotive methanol fuel according to claim 1, characterized in that, The inner bottom surface of the protective box has a groove, and the three wheels are all located directly above the groove.

5. The plate graphene heater for automotive methanol fuel according to claim 4, characterized in that, The drive mechanism includes: The motor is installed in the groove; A lead screw is fixedly connected to the power output shaft of the motor, and a first lead screw nut is fitted on it; The magnet block is slidably connected to the groove and fixedly sleeved on the first lead screw nut.

6. The plate graphene heater for automotive methanol fuel according to claim 3, characterized in that, The moving mechanism also includes: Six helical blades are mounted on the three horizontal axes respectively.

7. The plate graphene heater for automotive methanol fuel according to claim 6, characterized in that, It also includes multiple sets of disturbance mechanisms, the disturbance mechanisms including: A cylinder is mounted on the movable plate; The impeller is located inside the cylinder and is rotatably connected to the moving plate.

8. The plate graphene heater for automotive methanol fuel according to claim 5, characterized in that, The magnet block is an N52 type neodymium iron boron magnet, the wheel core of the moving wheel is made of N52 type neodymium iron boron permanent magnet material, and the rim of the moving wheel is wrapped with a 2mm thick composite layer, which is a graphene-reinforced nylon composite material.

9. The heating method of the sheet graphene heater for automotive methanol fuel according to any one of claims 1-8, characterized in that, Includes the following steps: Step 1: Activate the multiple graphene heating elements installed on the bottom of the protective box to heat the fuel tank shell, thereby heating the methanol fuel contained inside the fuel tank. Step 2: Start the motor to drive the lead screw to rotate synchronously, which in turn causes the magnet to slide along the groove; The magnetic block is attracted to the moving wheels on the bottom surface of the oil tank by magnetic force. The moving magnetic block will drive the moving wheels to move along the bottom surface of the oil tank in sync. Step 3: When the moving wheel moves, it will drive the horizontal shaft to move synchronously. The gear will rotate due to the meshing action of the rack, which in turn will drive the horizontal shaft to rotate around its own axis. Step 4: When the horizontal shaft in the middle rotates, it drives the two first bevel gears fixedly installed on it to rotate synchronously. The first bevel gears mesh with the second bevel gear installed at the lower end of the reciprocating screw, thereby driving the reciprocating screw to rotate around its own axis. The rotation of the reciprocating screw transmits torque through the square insert rod, which drives the horizontal plate and multiple stirring rods installed on the top surface of the horizontal plate to rotate synchronously. The rotating stirring rods stir the methanol fuel in the upper part of the oil tank. As the reciprocating screw rotates, the screw nut fitted on it moves up and down along the axis of the reciprocating screw, which in turn drives the cross plate and the stirring rod to move up and down synchronously through the slide rod, so that the stirring rod covers the methanol fuel at different heights in the oil tank. Step 5: As the three horizontal shafts rotate, they will drive the six spiral blades to rotate synchronously, which will push the methanol fuel that is easily deposited at the bottom of the fuel tank and move the methanol fuel deposited at the bottom. Step 6: When the moving plate moves, it drives the four sets of disturbance mechanisms installed on its two sides to move synchronously, and disturbs the methanol fuel in the edge area of ​​the oil tank through the impeller, supplementing the stirring blind area of ​​the stirring rod and the spiral blade, and ensuring that the methanol fuel in the entire oil tank is heated evenly.

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