Electric heat tracing device for customized processing of chemical pipelines or electrical equipment

Abstract

The utility model discloses an electric heat tracing device for customized processing of chemical pipelines or electrical equipment. The electric heat tracing device comprises an electric heat tracing wire. A conductor is arranged in the electric tracing wire, the outer surface of the conductor is wrapped with a heating resistor body, the outer surface of the heating resistor body is wrapped with an insulating layer, the insulating layer is wrapped with a shielding layer, the shielding layer is wrapped with a reinforcing layer, and the reinforcing layer is wrapped with a heat insulation layer. A heat conduction layer is arranged in the middle of the side, close to the pipeline, of the heat insulation layer, and the heat insulation layer is wrapped with a protection layer. According to the utility model, the reinforcing layer is arranged to increase the tensile property of the electric tracing wire, and the heat insulation layer and the heat conduction layer are matched for use, so that heat generated by the electric tracing wire can be directionally guided out, on one hand, the heat conduction efficiency of the electric tracing wire can be improved, and on the other hand, the electric quantity loss of the electric tracing wire in use can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of electric heating, in particular to an electric heating device used for customized processing of chemical pipelines or electrical equipment. Background Art

[0002] The electric heating cable is composed of a conductive polymer and two parallel metal wires and an insulating sheath. Its characteristics are that the conductive polymer has a very high positive temperature coefficient characteristic, and is connected in parallel with each other, and can automatically adjust the output power with the temperature change of the heated system, automatically limit the heating temperature, can be arbitrarily shortened or extended within a certain range, and allows multiple cross-overs without the worry of high-temperature hot spots and burning.

[0003] The Chinese patent number CN206100496U discloses an electric heating tape. The beneficial effects of the utility model are: the busbar is made of nickel-plated copper core wire, which has strong oxidation resistance, and a conductive paint layer is coated between the two busbars and the four conductive plastic wires, which greatly improves the adhesion between the metal and the plastic, effectively ensuring the firmness between the busbar and the conductive plastic wire, and the four spirally wound conductive plastic wires can clearly divide the power per meter of the electric heating tape to meet customers with different resistance requirements; the conductive plastic wire is made of Teflon, which can be used continuously at 150-180℃, with extremely low friction coefficient, good wear resistance and excellent chemical stability. In the process of using the existing technology, the heat is diffused to the surroundings, which is easy to cause a large amount of heat loss and reduce the efficiency of electric heating. Utility Model Content

[0004] The utility model aims to provide an electric heating device for custom processing of chemical pipelines or electrical equipment to solve the problems raised in the prior art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an electric heating device for customized processing of chemical pipelines or electrical equipment, comprising an electric heating wire; a conductor is arranged inside the electric heating wire, a heating resistor is wrapped on the outer surface of the conductor, an insulating layer is wrapped on the outer surface of the heating resistor, a shielding layer is wrapped on the outer side of the insulating layer, a reinforcing layer is wrapped on the outer side of the shielding layer, a heat insulating layer is wrapped on the outer side of the reinforcing layer, a heat conducting layer is arranged on the middle position of the heat insulating layer close to one side of the pipeline, and a protective layer is wrapped on the outer side of the heat insulating layer.

[0006] Preferably, a rubber pad is provided on the inner side of the electric heating cable, and the rubber pad is adhered to the inner side of the electric heating cable by adhesive.

[0007] Preferably, a waterproof layer is arranged outside the protective layer, and the waterproof layer is arranged as a waterproof coating layer.

[0008] Preferably, the reinforcement layer is configured as a carbon fiber layer.

[0009] Preferably, an anti-aging layer is provided on the outer side of the electric heating cable, and the anti-aging layer is configured as an anti-aging coating layer.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] 1. The reinforcement layer is used to increase the resistance and tensile strength of the electric heating cable. The combination of the heat insulation layer and the heat conductive layer can guide the heat generated by the electric heating cable in a directional manner. On the one hand, it can improve the thermal conductivity of the electric heating cable, and on the other hand, it can reduce the power loss of the electric heating cable when it is in use;

[0012] 2. The waterproof layer is used to increase the waterproof performance of the protective cover to prevent moisture from entering the interior of the electric heating cable during use;

[0013] 3. The carbon fiber layer used in the reinforcement layer has strong flexibility, which can increase the tensile and bending resistance of the electric heating cable;

[0014] 4. The setting of the anti-aging layer is used to increase the anti-aging performance of the electric heating cable, which can avoid the cracking of the outer surface of the electric heating cable during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the protective layer of the utility model;

[0018] Figure 3 This is a side view structural diagram of the protective layer of the utility model;

[0019] Figure 4 It is a side structural schematic diagram of the electric heating cable of the utility model.

[0020] In the figure: 1. Electric heating cable; 2. Conductor; 3. Heating resistor; 4. Insulation layer; 5. Shielding layer; 6. Reinforcement layer; 7. Heat insulation layer; 8. Heat conductive layer; 9. Anti-aging layer; 10. Rubber pad; 11. Protective layer; 12. Waterproof layer. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 In an embodiment of the utility model, an electric heating device for customized processing of chemical pipelines or electrical equipment includes an electric heating cable 1; a conductor 2 is arranged inside the electric heating cable 1, and a heating resistor 3 is wrapped on the outer surface of the conductor 2, and an insulating layer 4 is wrapped on the outer surface of the heating resistor 3. A shielding layer 5 is wrapped on the outer side of the insulating layer 4, and a reinforcing layer 6 is wrapped on the outer side of the shielding layer 5. A heat insulating layer 7 is wrapped on the outer side of the reinforcing layer 6, and a heat conducting layer 8 is arranged on the middle position of the heat insulating layer 7 near one side of the pipeline, and a protective layer 11 is wrapped on the outer side of the heat insulating layer 7.

[0023] Furthermore, a rubber pad 10 is provided on the inner side of the electric heating cable 1. The rubber pad 10 is adhered to the inner side of the electric heating cable 1 by adhesive. The rubber pad 10 is relatively soft. When the electric heating cable 1 is wrapped around the outside of the pipe, the rubber pad 10 will be compressed and deformed, which can increase the friction and contact area between the rubber pad 10 and the pipe.

[0024] Furthermore, a waterproof layer 12 is arranged outside the protective layer 11. The waterproof layer 12 is arranged as a waterproof coating layer. The waterproof layer 12 is arranged to increase the waterproof performance of the protective cover to prevent moisture from entering the electric heating cable 1 during use.

[0025] Furthermore, the reinforcing layer 6 is configured as a carbon fiber layer. The carbon fiber layer used in the reinforcing layer 6 has strong flexibility and can increase the tensile and bending resistance of the electric heating cable 1 .

[0026] Furthermore, an anti-aging layer 9 is provided on the outside of the electric heating cable 1. The anti-aging layer 9 is provided as an anti-aging coating layer. The setting of the anti-aging layer 9 is used to increase the anti-aging performance of the electric heating cable 1 and can avoid cracking of the outer surface of the electric heating cable 1 during use.

[0027] The working principle and use process of the utility model are as follows: when in use, the electric heating cable 1 is wound around the outside of the pipeline, the electric heating cable 1 is turned on by a switch, and power is supplied to the electric heating cable 1. When the current inside the electric heating cable 1 passes through, the heating resistor 3 will generate heat. The setting of the bonding layer is used to increase the insulation effect of the electric heating cable 1, and the setting of the reinforcement layer 6 is used to increase the resistance and tensile strength of the electric heating cable 1. The coordinated use of the heat insulation layer 7 and the heat conductive layer 8 can guide the heat generated by the electric heating cable 1 in a directionally directed manner. On the one hand, it can improve the thermal conductivity efficiency of the electric heating cable 1, and on the other hand, it can reduce the power loss of the electric heating cable 1 when in use.

[0028] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An electric heating device for custom processing of chemical pipelines or electrical equipment, comprising an electric heating cable (1); characterized in that: The electric heating cable (1) is provided with a conductor (2) inside, the outer surface of the conductor (2) is wrapped with a heating resistor (3), the outer surface of the heating resistor (3) is wrapped with an insulating layer (4), the outer side of the insulating layer (4) is wrapped with a shielding layer (5), the outer side of the shielding layer (5) is wrapped with a reinforcing layer (6), the outer side of the reinforcing layer (6) is wrapped with a heat insulating layer (7), the heat insulating layer (7) is provided with a heat conducting layer (8) at a middle position close to one side of the pipeline, and the outer side of the heat insulating layer (7) is wrapped with a protective layer (11).

2. The electric heating device for custom processing of chemical pipelines or electrical equipment according to claim 1, characterized in that: A rubber pad (10) is arranged on the inner side of the electric heating cable (1), and the rubber pad (10) is adhered to the inner side of the electric heating cable (1) by adhesive.

3. The electric heating device for custom processing of chemical pipelines or electrical equipment according to claim 1, characterized in that: A waterproof layer (12) is arranged outside the protective layer (11), and the waterproof layer (12) is arranged as a waterproof coating layer.

4. The electric heating device for custom processing of chemical pipelines or electrical equipment according to claim 1, characterized in that: The reinforcement layer (6) is configured as a carbon fiber layer.

5. The electric heating device for custom processing of chemical pipelines or electrical equipment according to claim 1, characterized in that: An anti-aging layer (9) is arranged on the outer side of the electric heating cable (1), and the anti-aging layer (9) is arranged as an anti-aging coating layer.

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