High-temperature-resistant and oxidation-resistant composite coating electric heating wire

Abstract

The utility model provides a kind of high-temperature-resistant antioxidation composite coating electric heating wire, comprising: electric heating body, the surface of electric heating body is provided with composite coating mechanism, composite coating mechanism is used to strengthen the high-temperature resistance and antioxidation performance of electric heating body, tightness adjusting mechanism includes winding piece, winding piece is used to the winding and relaxation of electric heating body, tensioning mechanism includes elastic piece, elastic piece is used to offset the relaxation and deformation of electric heating body under high temperature, protective layer is used to block high temperature and temperature resistance, reinforcing layer is used to enhance the protection of electric heating body, optimization layer optimizes the performance of electric heating body.The utility model provides a kind of high-temperature-resistant antioxidation composite coating electric heating wire by coating composite coating mechanism outside electric heating body, increase the high-temperature resistance and antioxidation performance of electric heating body, while, by setting tightness adjusting mechanism and electric heating body at the both ends of electric heating body, can adjust the pitch of electric heating body according to the temperature change of electric heating body, while, reduce the deformation and fracture of electric heating body under high temperature.

Description

Technical Field

[0001] This utility model relates to the field of heating wire design technology, and in particular to a high-temperature resistant and oxidation-resistant composite coating heating wire. Background Technology

[0002] Heating wire is a component that converts electrical energy into heat energy. It is widely used in heating equipment, household appliances, industrial furnaces and other fields. According to its shape and use, it can be divided into spiral heating wire, corrugated heating wire, bag heating wire and composite heating wire.

[0003] Spiral heating wires are made by winding the wire into a spiral shape to increase the heat dissipation area and improve thermal efficiency. However, spiral heating wires will generate radial and axial stresses due to thermal expansion at high temperatures. In particular, stress concentration in parts with a small radius of curvature can easily lead to plastic deformation or breakage of the wire.

[0004] Therefore, it is necessary to provide a high-temperature resistant and oxidation-resistant composite coated heating wire to solve the above-mentioned technical problems. Utility Model Content

[0005] This invention provides a high-temperature resistant and antioxidant composite coated heating wire, which solves the problem of deformation and breakage caused by thermal expansion and contraction.

[0006] To solve the above-mentioned technical problems, this utility model provides a high-temperature resistant and oxidation-resistant composite coating heating wire, comprising: a heating element, wherein a composite coating mechanism is provided on the surface of the heating element, the composite coating mechanism being used to enhance the high-temperature resistance and oxidation resistance of the heating element;

[0007] A tension adjustment mechanism, comprising a winding member for winding and unwinding the heating element;

[0008] The tensioning mechanism includes an elastic element, which is used to counteract the relaxation and deformation of the heating element at high temperatures.

[0009] Preferably, the composite coating structure includes a protective layer, a reinforcing layer, and an optimizing layer. The protective layer is used to block and resist high temperatures, the reinforcing layer is used to enhance the protective properties of the heating element, and the optimizing layer optimizes the performance of the heating element.

[0010] Preferably, one end of the heating element is connected to a protective cover, one end of the winding member is connected to a driving member, and the surface of the protective cover is connected to a circuit connector.

[0011] Preferably, the protective cover is used to protect the heating element, the driving component is used to drive the winding component to rotate to complete the winding and unwinding of the heating element, and the circuit connector is used to connect the heating element to external devices.

[0012] Preferably, the other end of the heating element is connected to a tensioning connector, and a protective member is connected to the outer surface of the tensioning connector. The tensioning connector is used for connecting the transmission, and the protective member is used for limiting and protecting the movement of the tensioning connector.

[0013] Compared with related technologies, the high-temperature resistant and oxidation-resistant composite coating heating wire provided by this utility model has the following beneficial effects:

[0014] This invention provides a high-temperature resistant and oxidation-resistant composite-coated heating wire. By coating the outside of the heating element with a composite coating mechanism, the high-temperature resistance and oxidation resistance of the heating element are increased. At the same time, by setting a tension adjustment mechanism and the heating element at both ends of the heating element, the pitch of the heating element can be adjusted according to the temperature change of the heating element, thereby reducing the deformation and breakage of the heating element at high temperatures. Attached Figure Description

[0015] Figure 1 A schematic diagram of a preferred embodiment of a high-temperature resistant and oxidation-resistant composite coated heating wire provided by this utility model;

[0016] Figure 2 for Figure 1 The diagram shows the connection structure between the heating element and the composite coating mechanism.

[0017] Numbered in the diagram: 1. Heating element,

[0018] 2. Composite coating structure, 21. Protective layer, 22. Reinforcing layer, 23. Optimizing layer,

[0019] 3. Tension adjustment mechanism; 31. Protective cover; 32. Winding component; 33. Drive component; 34. Circuit connector.

[0020] 4. Tensioning mechanism; 41. Tensioning connector; 42. Protective component; 43. Elastic component. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Please refer to the following: Figure 1 and Figure 2 ,in, Figure 1 A schematic diagram of a preferred embodiment of a high-temperature resistant and oxidation-resistant composite coated heating wire provided by this utility model; Figure 2 for Figure 1 The diagram shows the connection structure between the heating element 1 and the composite coating mechanism 2. A high-temperature resistant and oxidation-resistant composite coated heating wire includes: a heating element 1, wherein the surface of the heating element 1 is provided with a composite coating mechanism 2, the composite coating mechanism 2 being used to enhance the high-temperature resistance and oxidation resistance of the heating element 1;

[0023] The tension adjustment mechanism 3 includes a winding member 32, which is used to wind and unwind the heating element 1.

[0024] Tensioning mechanism 4, which includes elastic element 43, is used to counteract the relaxation and deformation of heating element 1 at high temperature.

[0025] The function of the tension adjustment mechanism 3 is to adjust the spacing of the heating element 1 according to the temperature of the heating element 1 to increase the heating density of the heating element 1. The winding member 32 is cylindrical and one end of the heating element 1 can be wound onto the surface of the winding member 32. By rotating the winding member 32, the heating element 1 can be wound and unwound, thereby changing the pitch of the heating element 1. The function of the tensioning mechanism 4 is to counteract the thermal deformation of the heating element 1. The elastic member 43 can be a spring, a sheet, etc., preferably a spring.

[0026] The composite coating structure 2 includes a protective layer 21, a reinforcing layer 22, and an optimization layer 23. The protective layer 21 is used to block and resist high temperatures, the reinforcing layer 22 is used to enhance the protection of the heating element 1, and the optimization layer 23 optimizes the performance of the heating element 1.

[0027] The protective layer 21 can be made of alumina (Al2O3), silicon dioxide (SiO2), zirconium oxide (ZrO2), etc., all of which have melting points exceeding 1500℃ and can withstand the high temperatures during the operation of the heating element 1. The metal phase of the reinforcing layer 22 can be high-temperature resistant metals such as nickel (Ni), chromium (Cr), and molybdenum (Mo), while the ceramic phase can be silicon carbide (SiC), boron carbide (B4C), silicon nitride (Si3N4), etc. The combination of the ductility of the metal phase and the high-temperature resistance of the ceramic phase alleviates the problem of cracking and peeling of the coating caused by sudden temperature changes (such as starting and stopping heating). Some metal ceramics (such as Ni-SiC) can balance thermal conductivity and protection, avoiding the decrease in heat dissipation efficiency caused by excessive coating thickness.

[0028] One end of the heating element 1 is connected to a protective cover 31, one end of the winding member 32 is connected to a driving member 33, and a circuit connector 34 is connected to the surface of the protective cover 31.

[0029] The protective cover 31 is square in shape and is movably connected to the other end of the heating element 1. The winding member 32 is rotatably connected to the inside of the protective cover 31. The driving member 33 can be a motor, electric motor, etc., preferably an electric motor.

[0030] The protective cover 31 is used to protect the heating element 1, the driving component 33 is used to drive the winding component 32 to rotate to complete the winding and unwinding of the heating element 1, and the circuit connector 34 is used to connect the heating element 1 to external devices.

[0031] The drive component 33 is connected to one end of the winding component 32, which can drive the winding component 32 to rotate in the positive direction, thereby tightening and loosening the heating element 1. The circuit connector 34 is connected to the other end of the heating element 1. By connecting to the plug of an external power source, current can be transmitted to complete the heating of the heating element 1. The winding component 32 is made of high temperature resistant insulating material.

[0032] The other end of the heating element 1 is connected to a tensioning connector 41, and a protective member 42 is connected to the outer surface of the tensioning connector 41. The tensioning connector 41 is used for connecting the transmission, and the protective member 42 is used for limiting and protecting the movement of the tensioning connector 41.

[0033] The protective component 42 is a hollow cylinder. The tensioning connector 41 is connected to the other end of the heating element 1 and is slidably embedded inside the protective component 42. It is also connected to one end of the elastic component 43. This can counteract the relaxation deformation of the heating element 1 at high temperature, maintain a constant resistance value, and reduce stress concentration that could easily lead to plastic deformation or breakage of the wire.

[0034] The working principle of the high-temperature resistant and oxidation-resistant composite coated heating wire provided by this utility model is as follows:

[0035] During operation, the protective layer 21 forms a dense oxide film, isolating the heating wire from corrosive media in the air and withstanding the high temperature during the operation of the heating wire. The combination of the ductility of the metallic phase and the high temperature resistance of the ceramic phase in the reinforcing layer 22 alleviates the cracking and peeling of the coating caused by sudden temperature changes. The optimization layer 23 inhibits the coarsening of the coating grains at high temperatures, maintaining the stability of the coating structure. When the heating element 1 expands under high temperature, the elastic element 43 provides a thrust to the tensioning connector 41, thereby resisting the radial expansion force of the heating element 1. The winding element 32 can also be driven to rotate by the driving element 33 to tighten or loosen the heating element 1, change the pitch of the heating element 1, and increase the heating density of the heating element 1.

[0036] Compared with related technologies, the high-temperature resistant and oxidation-resistant composite coating heating wire provided by this utility model has the following beneficial effects:

[0037] This utility model provides a high-temperature resistant and antioxidant composite coating heating wire. By coating the outside of the heating element 1 with a composite coating mechanism 2, the high-temperature resistance and antioxidant performance of the heating element 1 are increased. At the same time, by setting a tension adjustment mechanism 3 and the heating element 1 at both ends of the heating element 1 respectively, the pitch of the heating element 1 can be adjusted according to the temperature change of the heating element 1, while reducing the deformation and breakage of the heating element 1 at high temperature.

[0038] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A high-temperature resistant and oxidation-resistant composite coated heating wire, characterized in that, include: A heating element, the surface of which is provided with a composite coating mechanism, the composite coating mechanism being used to enhance the high temperature resistance and oxidation resistance of the heating element; A tension adjustment mechanism, comprising a winding member for winding and unwinding the heating element; The tensioning mechanism includes an elastic element, which is used to counteract the relaxation and deformation of the heating element at high temperatures.

2. The high-temperature resistant and oxidation-resistant composite coated heating wire according to claim 1, characterized in that, The composite coating structure includes a protective layer, a reinforcing layer, and an optimization layer. The protective layer is used to block and resist high temperatures, the reinforcing layer is used to enhance the protective properties of the heating element, and the optimization layer optimizes the performance of the heating element.

3. The high-temperature resistant and oxidation-resistant composite coated heating wire according to claim 1, characterized in that, One end of the heating element is connected to a protective cover, one end of the winding component is connected to a driving component, and the surface of the protective cover is connected to a circuit connector.

4. The high-temperature resistant and oxidation-resistant composite coated heating wire according to claim 3, characterized in that, The protective cover is used to protect the heating element, the driving component is used to drive the winding component to rotate to complete the winding and unwinding of the heating element, and the circuit connector is used to connect the heating element to external devices.

5. The high-temperature resistant and oxidation-resistant composite coated heating wire according to claim 1, characterized in that, The other end of the heating element is connected to a tensioning connector, and a protective component is connected to the outer surface of the tensioning connector. The tensioning connector is used for connecting the transmission, and the protective component is used for limiting and protecting the movement of the tensioning connector.

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