A graphene heating module and heating device

Abstract

This invention discloses a graphene heating module and heating device, comprising a base and at least one graphene heating module. The base has a fluid channel, and the graphene heating module is fixedly connected to the base. The graphene heating module includes a high-temperature resistant frame with a flow channel in the middle. A grid-like graphene heating sheet is covered on the flow channel and fixedly connected to the high-temperature resistant frame. The graphene heating sheet comprises a grid-like fiber cloth with a graphene film disposed on it. The high-temperature resistant frame has electrodes electrically connected to the graphene film. This invention provides a graphene heating module and heating device, whose grid-like structure allows fluid to pass through each small hole, increasing the contact area between the fluid and the graphene heating sheet, thereby improving heating efficiency.

Description

Technical Field

[0001] This invention relates to the technical field of graphene heating, specifically a graphene heating module and heating device. Background Technology

[0002] Traditional heating devices for gases, liquids, and other fluids typically employ heating elements such as heating wires, ceramic heating elements, metal heating tubes, and heating films. With the development of graphene technology, graphene has become a significant direction for the development of heating devices. However, the application of graphene in the heating field still has shortcomings. On the one hand, existing graphene heating sheets are generally made by coating graphene powder, which leads to powder shedding during use, limiting their application areas. On the other hand, existing graphene heating sheets still follow the usage habits of traditional heating elements, employing a single-sheet structure, resulting in a small thermal contact area between the heated medium and the heating sheet, leading to lower heating efficiency. Summary of the Invention

[0003] The present invention aims to at least partially solve one of the technical problems in the related art: to provide a graphene heating module and heating device, wherein the grid structure adopted allows fluid to pass through each small hole, thereby increasing the contact area between the fluid and the graphene heating plate and thus improving the heating efficiency.

[0004] Therefore, one objective of this invention is to provide a graphene heating module, comprising a high-temperature resistant frame, a flow channel in the middle of the high-temperature resistant frame, and a grid-like graphene heating element covered on the flow channel. The graphene heating element is fixedly connected to the high-temperature resistant frame. The graphene heating element comprises a grid-like fiber cloth, on which a graphene film is formed. The high-temperature resistant frame has electrodes electrically connected to the graphene film. The substrate of this graphene heating element is a grid-like fiber cloth, on which a graphene film is formed. Due to the grid shape, fluid can pass through the grid holes of the fiber cloth. Heat transfer occurs between the graphene film and the fluid within the grid holes, thereby achieving the purpose of heating the fluid with high heating efficiency.

[0005] According to one embodiment of the present invention, the high-temperature resistant frame is recessed along the thickness direction at the location of the flow channel to form a mounting groove, and the graphene heating element is embedded in the mounting groove and covers the flow channel. The mounting groove facilitates the installation of the graphene heating element, so that the graphene heating element and the high-temperature resistant frame constitute a sheet-like graphene heating module.

[0006] According to one embodiment of the present invention, a pressure strip is provided in the mounting groove, and the pressure strip is detachably connected to the mounting groove. The graphene heating element is clamped between the pressure strip and the bottom of the mounting groove. By disassembling the pressure strip from the mounting groove, the graphene heating element can be easily installed.

[0007] According to one embodiment of the invention, the pressure strip is made of a conductive material, and one end of the pressure strip extends horizontally outside the high-temperature resistant frame. This extension of one end of the pressure strip outside the high-temperature resistant frame serves as a terminal for electrical connection to an external power source.

[0008] According to one example of the present invention, the graphene heating plate has a plurality of small holes for fluid to pass through, the diameter of which is 1mm to 10mm. Setting the diameter of the small holes to 1mm to 10mm can ensure good fluid permeability, while also ensuring the area of ​​the graphene film and improving heating efficiency.

[0009] Therefore, one object of the present invention is to provide a graphene heating device, comprising a base and at least one graphene heating module. The base has a fluid channel, and the graphene heating module is fixedly connected to the base, with the fluid channel on the base communicating with the flow channel in the graphene heating module. The base can be easily connected to external devices, and fluid is fed into the flow channel through the fluid channel, where heating is completed. Multiple graphene heating modules can be stacked sequentially according to heating needs, thereby improving the overall heating efficiency.

[0010] According to one example of the present invention, there are multiple graphene heating modules, each graphene heating module is stacked sequentially along the thickness direction, and the entire flow channel formed by the flow channels on each graphene heating module is connected to the fluid channel.

[0011] According to one embodiment of the present invention, the top of the base is provided with a positioning element for limiting the position of the first graphene heating module. The positioning element facilitates the positioning of the first graphene heating module and the base, and facilitates the matching of fluid channels and flow paths during installation.

[0012] According to one example of the present invention, the spacing between any two adjacent graphene heating sheets is 5 mm to 100 mm.

[0013] According to one embodiment of the present invention, the base is provided with conductive sheets, which are electrically connected to the electrodes in each graphene heating module. By electrically connecting the electrodes in each graphene heating module through the conductive sheets, an external power source can provide electrical energy to each graphene heating module via the conductive sheets.

[0014] According to one example of the present invention, the graphene film is a continuous graphene film prepared on a fiber cloth by graphene growth. The graphene film grown directly on the surface of the fiber cloth has strong adhesion, avoiding the problem of easy detachment during use.

[0015] The above technical solution has the following advantages or beneficial effects: First, by using a mesh-like fiber cloth as the substrate, graphene is prepared on the fiber cloth to form a mesh-like graphene film. The resulting mesh-like graphene heating plate allows fluid to pass through each mesh hole. During this process, the graphene film is energized to heat the fluid. The contact area between the fluid and the graphene film is large, resulting in high heating efficiency, low energy consumption, and good overall temperature uniformity. Second, multiple graphene heating modules can be stacked and fixed on the base in a layered manner. This allows the number of graphene heating modules to be increased or decreased arbitrarily according to the actual heating power requirements, making it highly versatile. Finally, one end of the pressure plate in each graphene heating module is led out and fixed to the conductive sheet with silver paste to form a stable electrical connection, facilitating connection with an external power source to supply the electrical energy required for heating each graphene heating module.

[0016] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the graphene heating module of the present invention.

[0018] Figure 2 for Figure 1 An exploded diagram of the graphene heating module.

[0019] Figure 3 This is a schematic diagram of the graphene heating device of the present invention.

[0020] Figure 4 for Figure 3 A schematic diagram of the internal structure of the graphene heating device.

[0021] Figure 5 for Figure 3 A schematic diagram of the explosion of a graphene heating device.

[0022] Figure 6 for Figure 3 A top view of the graphene heating device.

[0023] Figure 7 for Figure 6 A cross-sectional view along the "AA" direction.

[0024] Figure 8for Figure 7 A three-dimensional schematic diagram of the mid-section view.

[0025] Figure 9 This is an enlarged schematic diagram of the internal structure of the graphene heating element.

[0026] The components include: 1. High-temperature resistant frame; 1.1 Mounting groove; 2. Flow channel; 3. Graphene heating element; 3.1 Fiber cloth; 3.2 Graphene film; 3.3 Small hole; 4. Electrode; 5. Pressure strip; 6. Base; 7. Fluid channel; 8. Positioning component; 9. Conductive sheet; 9.1 Insert; 10. Slot; 11. Long bolt. Detailed Implementation

[0027] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0028] A graphene heating module and heating device according to an embodiment of the present invention will now be described in detail with reference to the accompanying drawings.

[0029] by Figure 6 The plane formed by the width and length of the high-temperature resistant frame 1 shown is a horizontal plane, and all directions on this horizontal plane are horizontal directions, perpendicular to... Figure 6 The paper shown is in the thickness direction or the height direction.

[0030] The present invention provides a graphene heating plate 3, comprising a mesh-like fiber cloth 3.1, the fiber cloth 3.1 having a plurality of small holes 3.3 for fluid to pass through, all the small holes 3.3 being uniformly arranged on the fiber cloth 3.1, and a graphene film 3.2 prepared on the fiber cloth 3.1 being located on the surface of the fiber cloth, thereby forming a mesh-like graphene heating plate 3 with small holes 3.3.

[0031] The fluids in the above embodiments include, but are not limited to, gases and liquids. The gases may be air or non-conductive gases.

[0032] In the above embodiment, the graphene heating plate 3 is mesh-shaped, and the mesh-shaped graphene heating plate 3 has a number of small holes 3.3 for fluid to pass through. The small holes 3.3 are evenly arranged on the graphene heating plate 3 in the horizontal direction.

[0033] Preferably, the aperture of the small hole 3.3 is 1mm to 10mm.

[0034] Preferably, the mesh-like fiber cloth 3.1 is an inorganic fiber cloth, which includes, but is not limited to, glass fiber, quartz fiber, mica fiber, basalt fiber, alumina ceramic fiber, and boron nitride fiber (BN fiber). The thickness of the fiber cloth 3.1 is 0.1 mm to 1 mm. Preferably, the thickness of the fiber cloth 3.1 is 0.1 mm or 0.2 mm.

[0035] Based on one of the preferred examples of the graphene film 3.2 on the fiber cloth 3.1 in the above embodiments:

[0036] A mesh-like fiber cloth 3.1 is selected as the substrate of the graphene heating element 3. Graphene slurry is sprayed onto the fiber cloth 3.1 to form a graphene film 3.2. The fiber cloth 3.1 and the graphene film 3.2 on the fiber cloth 3.1 constitute the graphene heating element 3.

[0037] A second preferred example based on the graphene film 3.2 on the fiber cloth 3.1 in the above embodiments:

[0038] A mesh-like fiber cloth 3.1 is selected as the substrate of the graphene heating element 3. A graphene film 3.2 is grown on the fiber cloth 3.1 by graphene growth. The graphene film 3.2 is a continuous graphene film 3.2. The fiber cloth 3.1 and the continuous graphene film 3.2 on the fiber cloth 3.1 constitute the graphene heating element 3. Compared with one of the preferred examples above, the graphene film formed by the graphene growth method has a continuous layered structure, and the graphene film growth process does not block the pores in the mesh-like fiber cloth 3.1, especially for the fiber cloth 3.1 with small pore diameters.

[0039] Specifically, in this embodiment, the continuous graphene film 3.2 prepared on the fiber cloth 3.1 by graphene growth refers to the formation of one or more continuous graphene films on the fiber cloth 3.1 by graphene growth. The growth methods for this continuous graphene film include chemical vapor deposition, epitaxial growth, and scanning electromagnetic induction ultrafast growth, etc., to form continuous single-layer or multi-layer graphene film layers on the surface of the fiber cloth 3.1. The thickness of this continuous graphene film is between a few nanometers and tens of nanometers. Since the graphene is formed by growth, the layered graphene film formed on the fiber cloth 3.1 is continuous, hence it is called a nanometer-thickness continuous graphene film, or a nanometer-scale continuous graphene film 3.2. Preferably, the preparation method disclosed in CN113840801A is used to form a nanometer-scale continuous graphene film 3.2 on the surface of the fiber cloth 3.1. This nanoscale continuous graphene film 3.2 differs from graphene slurry layers formed by the aforementioned spraying or existing thick-film coating processes. Graphene slurry layers produced by spraying or scraping are typically millimeter-thick. Furthermore, because these slurry layers are formed by first mixing graphene powder with a solvent to form a slurry, and then coating the slurry onto a substrate, although they also have a layered structure, their thickness is considerable, and the graphene particles are not continuous. Additionally, graphene films formed by slurry coating require the addition of adhesives and other solvents, leading to powder shedding as the temperature increases. In this embodiment, however, since the graphene film 3.2 is a continuous graphene film formed through graphene growth, it does not experience powder shedding with increasing temperature. This embodiment is particularly suitable for applications requiring high heating temperatures.

[0040] Based on the graphene heating element 3 in the above embodiments, the present invention provides a graphene heating module, such as... Figure 1 and Figure 2 As shown, the system includes a high-temperature resistant frame 1 with a central channel at its horizontal midpoint. This central channel serves as a flow channel 2 for fluid passage. The flow channel 2 extends through the upper and lower surfaces of the high-temperature resistant frame 1 along its thickness direction. The aforementioned grid-like graphene heating sheet 3 covers the flow channel 2, and its outer edge is fixedly connected to the high-temperature resistant frame 1. The high-temperature resistant frame 1 is provided with electrodes 4 that are electrically connected to the graphene film 3.2 in the graphene heating sheet 3. In this embodiment, the high-temperature resistant frame 1 has a sheet-like structure.

[0041] Preferably, the high-temperature resistant frame 1 is made of insulating and heat-resistant materials such as plastic and acrylic.

[0042] Preferably, the graphene heating element 3 is entirely a mesh structure, or the area of ​​the graphene heating element 3 corresponding to the flow channel 2 is a mesh structure.

[0043] like Figure 2 As shown, the high-temperature resistant frame 1 is recessed in the thickness direction at the location of the flow channel 2 to form an installation groove 1.1, and the graphene heating plate 3 is embedded in the installation groove 1.1 and covers the flow channel 2.

[0044] Furthermore, the mounting groove 1.1 is provided with a pressure strip 5, which is detachably connected to the mounting groove 1.1. The graphene heating element 3 is clamped between the pressure strip 5 and the bottom of the mounting groove 1.1. Specifically, there are two pressure strips 5, which are symmetrically arranged on both sides of the graphene heating element 3. Each pressure strip 5 is fixed to the bottom of the mounting groove 1.1 by screw threads, thereby fixing the positions of both sides of the graphene heating element 3 to the mounting groove 1.1 by the pressure strips 5. The graphene heating element 3 covers the flow channel 2 and remains taut.

[0045] To supply power to the graphene heating element 3, an electrode 4 is provided on the graphene heating element 3. The electrode 4 is a sheet-like electrode sheet, which is stacked on the graphene heating element 3 and pressed together by a pressure strip 5. An external power source supplies power to the graphene film 3.2 on the graphene heating element 3 through an electrical connection with the electrode 4. Furthermore, the pressure strip 5 is made of a conductive material, and one end of the pressure strip 5 extends horizontally outside the high-temperature resistant frame 1. The portion of the pressure strip 5 exposed outside the high-temperature resistant frame 1 serves as a terminal for electrical connection to an external power source.

[0046] Based on the preferred embodiment of the graphene heating module described above, the present invention provides a graphene heating device, including a base 6 and at least one graphene heating module. The base 6 has a fluid channel 7, the graphene heating module is fixedly connected to the base 6, and the fluid channel 7 on the base 6 communicates with the flow channel 2 in the graphene heating module.

[0047] Furthermore, the graphene heating module comprises multiple modules, each stacked sequentially along its thickness direction. The flow channels 2 on any two adjacent graphene heating modules correspond along the thickness direction, thus forming a complete flow channel along the thickness direction. The entire flow channel 2 formed by the flow channels 2 of all graphene heating modules is connected to the fluid channel 7. Therefore, the fluid fed from the fluid channel 7 of the base 6 is heated by the graphene film 3.2 as it passes through the flow channels 2 of the graphene heating module. Each layer of graphene film 3.2 on the graphene heating module heats the fluid.

[0048] Specifically, the graphene heating modules are in the form of two, three, four, five, six, seven, eight, nine, or ten units.

[0049] Preferably, the fluid is air, and the fluid channel 7 on the base 6 is the air inlet channel. The heating area of ​​a single graphene heating element 3 in each graphene heating module is 100×100mm. With five graphene heating modules and a spacing of 20mm between the graphene heating elements in adjacent modules, when the airflow velocity in the fluid channel 7 on the base 6 is 8m / s, the air temperature at the outlet after passing through each graphene heating module can rise to 50℃ within 130s (the stable temperature during long-term use is 45-50℃), and the overall power of the heating element is 300W. This power value is significantly lower than the power required in existing technologies using resistance wire to heat an equivalent airflow to a comparable temperature.

[0050] In the above embodiment, the flow channel 2 on the graphene heating module needs to be aligned with the fluid channel 7. Therefore, the improvement in this embodiment is that the top of the base 6 is provided with a positioning element 8 for limiting the position of the first graphene heating module. Specifically, as shown... Figure 5 As shown, the positioning component 8 includes several baffles on the top surface of the base 6. The baffles together form an installation space for embedding the graphene heating module, thereby enabling the first graphene heating module to be embedded in the installation space, so that the flow channel 2 on the first graphene heating module is accurately aligned with the fluid channel 7.

[0051] Each graphene heating module has several bolt holes on its high-temperature resistant frame 1. The graphene heating modules are stacked along the thickness direction and are fastened together by long bolts 11.

[0052] In the above embodiments, the thickness of the high-temperature resistant frame 1 is adjusted and / or the spacing between two adjacent high-temperature resistant frames 1 is changed so that the spacing between any two adjacent graphene heating sheets 3 is 5mm to 500mm, where mm is the unit of millimeters. Preferably, the spacing between two adjacent graphene heating sheets 3 is any one of 5mm, 10mm, 20mm, 30mm, 40mm, 50mm, 60mm, 70mm, 80mm, 90mm, 100mm, 150mm, 200mm, 250mm, 300mm, 350mm, 400mm, 450mm, and 500mm.

[0053] The base 6 is provided with a conductive sheet 9, which is a copper sheet. The conductive sheet 9 is electrically connected to the electrodes 4 in each graphene heating module. Specifically, the pressure strip 5 is made of a conductive material. The pressure strip 5 presses the electrode sheet and the graphene film 3.2 together, so that the graphene film 3.2, the electrode 4 and the pressure strip 5 are electrically connected. One end of the pressure strip 5 extends horizontally outside the high-temperature frame 1. The part of the pressure strip 5 exposed outside the high-temperature frame 1 is bent to form a terminal. The conductive sheet 9 is fixed and electrically connected to the terminal on each pressure strip 5 by silver paste. The conductive sheet 9 is configured to be electrically connected to an external power source. In this embodiment, the pressure strip 5 is made of stainless steel.

[0054] Based on the preferred embodiment of the conductive sheet 9, the portion of the pressure strip 5 exposed outside the high-temperature frame 1 in the horizontal direction is bent downward to form a terminal block. A slot 10 is provided between the terminal block and the outer wall of the high-temperature frame 1. Each conductive sheet 9 is provided with a insert 9.1 at the position corresponding to each slot 10. The insert 9.1 and the conductive sheet 9 are an integral structure. Each insert 9.1 is inserted into its corresponding slot 10 in the horizontal direction.

[0055] It should be understood that the graphene heating element used in the above embodiments is prepared by growing a graphene film layer with a nanometer-thickness on a substrate. If the temperature of the graphene heating element exceeds 110°C after continuous heating, further anti-oxidation measures for the graphene film layer need to be considered. However, at temperatures below 110°C, especially in heating scenarios slightly above room temperature, this anti-oxidation measure can be disregarded or considered less. In the graphene heating device of the above embodiments, the target heating temperature is 50°C. Under this operating scenario, anti-oxidation of the graphene heating element is not considered. However, when the fluid supplied by the fan stops, the fluid flow in the space where the graphene heating element is located decreases or even stops. At this time, the local temperature in the space where the graphene heating element is located will rise rapidly, easily causing oxidation of the graphene heating element. Therefore, based on the graphene heating module and graphene heating device in the above embodiments, this invention proposes a control method for the heating device:

[0056] Before the fan equipment used to supply air stops, the graphene heating module is powered off and stops heating before the fan equipment stops. This interval can be a preset interval. The fan equipment and the graphene heating element are electrically connected to the controller. After the controller receives the stop working command, it controls the graphene heating element to be powered off and stop heating. After the timing module inside the controller reaches the interval, the controller controls the fan equipment to stop.

[0057] Alternatively, a temperature sensor for detecting the temperature of the space where the graphene heating element is located can be provided on the graphene heating module and / or graphene heating device. The temperature sensor is communicatively connected to the controller, and the fan and the graphene heating element are electrically connected to the controller. After the controller receives a stop working command, it controls the graphene heating element to cut off the power and stop heating. If the temperature sensor is higher than the set standard temperature, the fan continues to work. If the temperature sensor drops to the set standard temperature, the controller receives the detection signal from the temperature sensor and controls the fan to stop.

[0058] It should be noted that in the description of this invention, the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0059] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0060] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0061] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0062] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0063] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

[0064] For those skilled in the art, various changes and modifications will undoubtedly be apparent after reading the above description. Therefore, the appended claims should be construed as covering all changes and modifications that encompass the true intent and scope of the invention. Any and all equivalent scope and content within the scope of the claims should be considered to remain within the intent and scope of the invention.

Claims

1. A graphene heating module, characterized by: The graphene heating module comprises a high-temperature-resistant frame (1), a flow channel (2) for fluid passing through the middle position of the high-temperature-resistant frame (1), and a grid-shaped graphene heating sheet (3) covering the flow channel (2), wherein the outer edge of the graphene heating sheet (3) is fixedly connected with the high-temperature-resistant frame (1), the graphene heating sheet (3) comprises a grid-shaped fiber cloth (3.1) provided with a graphene film (3.2), and the high-temperature-resistant frame (1) is provided with an electrode (4) electrically connected with the graphene film (3.2). The graphene film (3.2) is a continuous graphene film (3.2) prepared on the fiber cloth (3.1) in a graphene growth manner. The graphene heating sheet (3) is provided with a plurality of small holes (3.3) for fluid passing through, and the aperture of the small holes (3.3) is 1mm-10mm.

2. The graphene heating module of claim 1, wherein: The high-temperature-resistant frame (1) is recessed in the thickness direction at the position of the flow channel (2) to form a mounting groove (1.1), and the graphene heating sheet (3) is embedded in the mounting groove (1.1) and covers the flow channel (2).

3. The graphene heating module of claim 2, wherein: The mounting groove (1.1) is provided with a pressing strip (5) which is detachably connected with the mounting groove (1.1), and the graphene heating sheet (3) is clamped between the pressing strip (5) and the groove bottom of the mounting groove (1.1).

4. The graphene heating module of claim 3, wherein: The pressing strip (5) is made of a conductive material, and one end of the pressing strip (5) extends to the outside of the high-temperature-resistant frame (1) in the horizontal direction.

5. A graphene heating device, characterized by: The graphene heating module comprises a base (6) and at least one graphene heating module according to any one of claims 1-4, wherein the base (6) is provided with a fluid channel (7), the graphene heating module is fixedly connected with the base (6), and the fluid channel (7) on the base (6) is in communication with the flow channel (2) in the graphene heating module.

6. The graphene heating device of claim 5, wherein: The graphene heating module comprises a plurality of graphene heating modules which are sequentially stacked in the thickness direction, and the entire flow channel (2) formed by the flow channels (2) on the graphene heating modules is in communication with the fluid channel (7).

7. The graphene heating device of claim 6, wherein: The top of the base (6) is provided with a positioning member (8) for limiting the position of the first graphene heating module.

8. The graphene heating device of claim 7, wherein: The spacing between any two adjacent graphene heating sheets (3) is 5mm-100mm.

9. The graphene heating device of claim 7, wherein: The base (6) is provided with a conductive sheet (9) which is electrically connected with the electrode (4) in each graphene heating module.

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