A graphene heating tube
By combining a spiral-wound graphene heating component with an inner tube turbulent flow structure, the problems of low heating efficiency and uneven fluid flow in traditional fluid heating tubes are solved, achieving efficient and safe fluid heating.
Patent Information
- Application Number
- CN202521940670.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-10
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-09-10
AI Technical Summary
Traditional fluid heating tubes have low heating efficiency, high energy consumption, and uneven heating of the fluid, posing safety hazards. The application of graphene in the field of fluid heating is not yet mature.
The heating element is made of helically wound graphene and combined with an inner tube. The outer wall of the inner tube has a turbulent flow structure. The electrode wire insulation design is optimized and combined with heat insulation materials to improve heating uniformity and safety.
It significantly improves heating efficiency, reduces energy consumption, enhances fluid heating uniformity, improves safety performance, and reduces fluid flow resistance.
Smart Images

Figure CN224684385U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fluid heating equipment technology, specifically a graphene heating tube. Background Technology
[0002] Traditional fluid heating tubes typically use resistance wires or heating films as heating elements, which suffer from low heating efficiency, high energy consumption, and uneven heating. Resistance wire heating is prone to generating localized high temperatures, shortening the lifespan of the heating tube and even posing safety hazards. Furthermore, the simple structural design of traditional heating tubes allows for laminar flow of fluid within the tube, resulting in low heat transfer efficiency and further impacting heating performance. Graphene, as a novel nanomaterial, possesses excellent electrical and thermal conductivity, but its application in fluid heating still faces technical bottlenecks, such as how to achieve efficient integration of the graphene heating element with the tube body, how to solve electrode insulation problems, and how to optimize fluid heating uniformity.
[0003] Therefore, there is a need to provide a new type of graphene heating tube to address the aforementioned shortcomings. Utility Model Content
[0004] The purpose of this invention is to provide a graphene heating tube to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A graphene heating tube includes an inner tube through which a fluid to be heated flows; characterized in that: a graphene heating component is spirally wound around the outer wall of the inner tube, and an outer tube is wrapped around the graphene heating component, the outer tube being made of heat-insulating material for heat preservation of the graphene heating component; the graphene heating component includes a graphene heating element and two positive and negative electrode wires, the graphene heating element being spirally wound and fitted along the outer wall of the inner tube, the two positive and negative electrode wires being respectively embedded and electrically connected to both sides of the graphene heating element, and the ends of the two positive and negative electrode wires being led out and electrically connected to a power source.
[0007] Preferably, the distance between two adjacent turns of positive and negative electrode wires in the graphene heating assembly is 3mm to 10mm to achieve insulation between the positive and negative electrode wires.
[0008] Preferably, both the positive and negative electrode wires are conductors made of copper.
[0009] Preferably, the inner wall of the inner tube forms a turbulent structure, which is used to agitate and disrupt the fluid to be heated flowing in the tube, thereby improving the uniformity of heating.
[0010] Preferably, the turbulent structure is a spiral guide fluid formed in the inner wall of the inner tube, and the side of the spiral guide fluid facing the inflow of the fluid to be heated forms a concave arc surface.
[0011] Preferably, one end of the inner tube is detachably provided with an inlet quick-connect nozzle, and the other end is detachably provided with an outlet quick-connect nozzle.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] 1. This invention uses a spirally wound graphene heating element as the heating component. The high electrical and thermal conductivity of graphene significantly improves heating efficiency while greatly reducing energy consumption. Two positive and negative electrode wires are embedded on both sides of the graphene heating element and are integrated with the outer wall of the inner tube through a spiral winding method, further optimizing the heat transfer path and making heating more uniform. In addition, the distance between two adjacent turns of electrode wire is designed to be 3mm to 10mm, effectively avoiding the risk of short circuits between electrodes and improving insulation and safety performance.
[0014] 2. This invention incorporates a turbulent flow structure on the inner wall of the inner tube, which agitates and disrupts the fluid flowing through the tube, breaking the laminar flow state and significantly improving the uniformity of fluid heating. The optimized spiral fluid guide design further optimizes the fluid flow path, and combined with the concave arc surface of the cross-section, reduces fluid flow resistance, achieving a perfect combination of high-efficiency heating and low energy consumption. Attached Figure Description
[0015] Figure 1 This is a partial sectional view of the three-dimensional structure of this utility model;
[0016] Figure 2 for Figure 1 A magnified view of part A in the image;
[0017] Figure 3 This is a front half-sectional view of the present invention;
[0018] Figure 4 for Figure 3 A magnified view of part B in the image.
[0019] In the diagram: 1-Inner tube; 2-Graphene heating component; 21-Graphene heating element; 22-Positive electrode wire; 23-Negative electrode wire; 3-Outer tube; 4-Turbulent flow structure; 41-Spiral guide fluid; 42-Cross-section concave arc surface; 5-Inlet quick connector; 6-Outlet quick connector. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0021] like Figures 1 to 4 As shown, this utility model is a graphene heating tube used to heat fluids, primarily common water or air. Figure 1 and Figure 2 As shown, the graphene heating tube includes an inner tube 1 for flowing the fluid to be heated. The inner tube 1 is made of a material with good thermal conductivity, such as copper. Specifically, as... Figure 2 , Figure 3 and Figure 4 As shown, a graphene heating component 2 is spirally wound around the outer wall of the inner tube 1. The graphene heating component 2 is wrapped with an outer tube 3 made of heat-insulating material. Therefore, the outer tube 3 can effectively reduce heat loss and improve heating efficiency. The graphene heating component 2 includes a graphene heating element 21 and two positive and negative electrode wires 22 and 23. The graphene heating element 21 is spirally wound around the outer wall of the inner tube 1 and tightly fitted. The two positive and negative electrode wires 22 and 23 are respectively embedded in and electrically connected to both sides of the graphene heating element 21. Preferably, the positive and negative electrode wires 22 and 23 are conductors made of copper, which have good conductivity and corrosion resistance. The ends of the two electrode wires are led out and connected to a power source to supply power to the graphene heating element 21.
[0022] Further optimizations, such as Figure 2 , Figure 3 and Figure 4 As shown, the distance between two adjacent loops of positive electrode wire 22 and negative electrode wire 23 in the graphene heating component 2 is 3mm to 10mm, preferably 5mm. This distance ensures that a short circuit will not occur between the positive electrode wire 22 and the negative electrode wire 23, achieving not only insulation between the electrodes but also optimizing heating uniformity. Figure 2 and Figure 4 The positive electrode line 22 and the negative electrode line 23 shown are electrically connected to both sides of the graphene heating element 21 and extend in a spiral winding manner with the graphene heating element 21. In this way, when the positive electrode line 22 and the negative electrode line 23 are connected to the power supply, the voltage formed on both sides of the graphene heating element 21 is very uniform, so that the heating is also uniform.
[0023] like Figure 3 and Figure 4As shown, the inner wall of the inner tube 1 forms a turbulent flow structure 4. Specifically, the turbulent flow structure 4 is a spiral guide fluid 41 spirally formed in the inner wall of the inner tube 1, and the side of the spiral guide fluid 41 facing the inflow of the fluid to be heated forms a concave arc surface 42. Therefore, this flow structure 4 can agitate and disrupt the fluid flowing through the tube, breaking the laminar flow state and significantly improving the heating uniformity of the fluid. At the same time, the concave arc surface 42 reduces the fluid flow resistance, further optimizing the heating efficiency.
[0024] In addition, one end of the inner tube 1 is detachably equipped with an inlet quick-connect nozzle 5, and the other end is detachably equipped with an outlet quick-connect nozzle 6. Specifically, the optimized design of the quick-connect nozzles is to facilitate installation and disassembly, maintenance and replacement, that is, to easily achieve quick connection between the fluid source and the water outlet terminal through the inlet quick-connect nozzle 5 and the outlet quick-connect nozzle 6 respectively.
[0025] When using this graphene heating tube, the fluid to be heated flows into the inner tube 1 from the inlet quick-connect nozzle 5. As it flows through the turbulent flow structure 4, it is agitated, achieving uniform heating. Simultaneously, the graphene heating element 2 is energized, and the graphene heating element 21 rapidly generates heat, which is then transferred to the fluid through the inner tube 1 wall. The insulation material of the outer tube 3 effectively reduces heat loss, further improving heating efficiency. After heating, the fluid flows out from the outlet quick-connect nozzle 6, completing the heating process.
[0026] The graphene heating tube of this invention has a simple structure, high heating efficiency, and low energy consumption, making it suitable for various fluid heating scenarios.
[0027] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A graphene heating tube, comprising an inner tube (1) through which a fluid to be heated flows; characterized in that: The inner tube (1) is spirally wound with a graphene heating component (2) on its outer wall. The graphene heating component (2) is wrapped with an outer tube (3) made of heat insulation material for heat preservation of the graphene heating component (2). The graphene heating component (2) includes a graphene heating element (21) and two positive and negative electrode lines (22, 23). The graphene heating element (21) is spirally wound and attached to the outer wall of the inner tube (1). The two positive and negative electrode lines (22, 23) are respectively embedded and electrically connected to the two sides of the graphene heating element (21). The two positive and negative electrode lines (22, 23) are led out at their ends and electrically connected to the power supply.
2. The graphene heating tube according to claim 1, characterized in that: The distance between two adjacent turns of positive electrode line (22) and negative electrode line (23) in the graphene heating component (2) is 3mm to 10mm, so as to achieve insulation between positive electrode line (22) and negative electrode line (23).
3. A graphene heating tube according to claim 1, characterized in that: The positive and negative electrode lines (22, 23) are both conductors made of copper.
4. A graphene heating tube according to claim 1, characterized in that: The inner wall of the inner tube (1) forms a turbulent structure (4), which is used to agitate and disrupt the fluid to be heated flowing in the tube, thereby improving the uniformity of heating.
5. A graphene heating tube according to claim 4, characterized in that: The turbulent structure (4) is a spiral guide fluid (41) formed spirally in the inner wall of the inner tube (1), and the spiral guide fluid (41) forms a concave arc surface (42) on the side facing the flow of the fluid to be heated.
6. A graphene heating tube according to claim 1, characterized in that: One end of the inner tube (1) is detachably provided with an inlet quick connector (5), and the other end is detachably provided with an outlet quick connector (6).