WO2017114331A1

WO2017114331A1 - Composite electric heating wire trace heated and thermally insulated plastic pipe

Info

Publication number: WO2017114331A1
Application number: PCT/CN2016/111973
Authority: WO
Inventors: 徐宝安
Original assignee: 淄博环能海臣环保技术服务有限公司; 徐宝安
Priority date: 2015-12-29
Filing date: 2016-12-25
Publication date: 2017-07-06
Also published as: CN106764215A

Abstract

A composite electric heating wire trace heated and thermally insulated plastic pipe, capable of using minimum electric power to electrically heat safely and rapidly the inner wall of the pipe for rapid and even deicing, thus constituting a liquid flow channel, and allowing hot water in the pipe to flow downstream through the entire pipe for rapid deicing. The power of a low-voltage power supply can be controlled by a control element, the heat generated by a lead can keep the thermally insulated pipe from freezing, and water in the pipe can be kept at a certain temperature by means of controlling the power supply, thus implementing the function of instant hot water supply upon opening a faucet. This has a mature and simple production process, greatly increases the strength of the pipe, because the phenomenon of overheating from electric heating is largely prevented with the presence of water in the pipe, implements controllable voltage by means of adjusting the voltage, and represents the direction for future developments for thermally insulated pipes.

Description

Description: A composite electric heating wire thermal insulation plastic tube

[0001] The present invention relates to a composite electric heating wire thermal insulation plastic tube, belonging to the field of heating pipes.

Background technique

[0002] At present, most known pipes for solar water heaters are aluminum-plastic composite pipes, plastic pipes, or materials such as metal pipes. In the winter, when the pipeline is poorly insulated, the pipeline is often frozen. Moreover, due to the expansion of the pipeline, the water and sewage pipelines are often frozen and cracked, which may result in failure to use normally. For some organic chemical products, the temperature is low and the delivery is more difficult. Since the pipe is insulated, even if the temperature rises, the ice inside the pipe is not easily degraded. In order to solve the above problems, it is common to prevent the upper and lower water pipes from freezing and cracking by means of a heating cable or emptying. Since the heating cable is installed on the outer wall of the pipeline, it cannot be in good contact with the pipeline, the thermal resistance is increased, and the heat utilization rate of the heating cable is low, so that the power consumption is large, the ice-making performance is poor, and the application effect is changed. Poor, and often a fire, not safe enough. However, the venting type antifreeze device has the possibility of storing water due to the installation of the pipeline, so that the drainage of the pipeline is not smooth, and the problem of the frozen plug still occurs, so that its application is greatly restricted.

technical problem

[0003] In the winter, when the pipeline is poorly insulated, the pipeline is often frozen. Moreover, due to the expansion of the pipeline, the water and sewage pipelines are often frozen and cracked, which may result in failure to use normally. For some organic chemicals, the temperature is low and the delivery is more difficult. Since the pipes are insulated, the ice inside the pipes is not easily degraded even if the temperature rises. In order to solve the above problems, it is common to prevent the upper and lower pipes from freezing and cracking by means of a heating cable or emptying.

Problem solution

Technical solution

[0004] In order to solve the above problems, a composite electric heating wire thermal insulation plastic tube is invented. It can improve the strength of the insulated plastic tube, improve the reliability of the insulation, use a small amount of electric energy to achieve rapid ice reduction of the entire pipeline, and can achieve heating and insulation of water and other liquid medium.

[0005] The technical solution adopted by the present invention to solve the technical problem thereof is: a composite electric heating wire thermal insulation plastic tube , including electrical insulation tube, electric heating wire, electrical connection wire electrode, plastic tube. A composite electric heating wire thermal insulation plastic tube has at least two wire electrodes on the outer wall of the electric insulating tube, and is symmetrically distributed and fixed on the outer tube wall of the electric insulating tube, and the electric heating wire is evenly distributed, wrapped and fixed On at least two of the wire electrodes, a heating wire that forms a good electrical connection between the heating wire and the wire electrode is wound around the tubular layer. The electric heating wire heating circuit is connected in parallel with the winding of the electric heating wire through at least two wire electrodes. Electrically connected to the wire electrode or coated with solder. The heating wire is wound around the tubular layer and the wire electrode, and at least an electrically insulating plastic tube manufactured by an extrusion process is compounded. The outer surface of the tubular electrothermal film layer and the wire electrode is at least tightly wrapped with an electrically insulating air interlayer insulating plastic tube manufactured by an extrusion process. The extruded electrically insulated air sandwich insulation plastic tube is a set of two tubes, and at least two symmetrically distributed positioning support ribs are disposed between the two tubes. The electric heating wire heat-insulating plastic tube is electrically insulated on the inner wall of the plastic tube or combined with other tubes, and the electric heating wire heat-heats the plastic tube to the outer hollow wall of the annular hollow interlayer air-insulation tube, or is composited with other materials.

[0006] A composite electric heating wire thermal insulation plastic tube, comprising an electric insulating tube, a heating wire, an electrical connecting wire electrode, and a plastic tube. A composite electric heating wire thermal insulation plastic tube is coated with an adhesive film layer on the outer wall of the electric insulating tube. At least two wire electrodes are arranged, symmetrically distributed and fixed on the outer tube wall of the plastic tube coated with the adhesive film layer, the electric heating wire is evenly distributed, wrapped and fixed on at least two wire electrodes to form a heating wire and The electric wire of the wire electrode that is well electrically connected is wound around the tubular layer. The electric heating wire heating circuit is connected in parallel with the winding of the electric heating wire through at least two wire electrodes. Electrically connected to the wire electrode or coated with solder. The heating wire is wound around the tubular layer and the wire electrode, and at least an electric insulating plastic tube manufactured by an extrusion process is compounded. The outer surface of the tubular electrothermal film layer and the wire electrode is at least tightly wrapped with an electrically insulating air sandwich insulating plastic tube manufactured by an extrusion process. The extruded electrically insulated air sandwich insulation plastic tube is a set of two tubes, and at least two symmetrically distributed positioning support ribs are arranged between the two tubes. The inner wall of the electric insulating tube of the electric heating wire is heated or insulated with other tubes, and the electric heating wire heats the plastic tube to the outer tube wall of the annular hollow interlayer air-insulation tube, or is composited with other materials.

[0007] A composite electric heating wire thermal insulation plastic tube, comprising an electric insulating tube, a heating wire, an electrical connecting wire electrode, and a plastic tube. A composite electric heating wire heat-insulating plastic tube has at least two wire electrodes on the outer wall of the electric insulating tube, and is symmetrically distributed and fixed on the outer tube wall of the electric insulating tube, and the heating wire is evenly distributed. The wrapping package is fixed on at least two wire electrodes to form a heating wire wound tubular layer in which the heating wire is electrically connected to the wire electrode. The electric heating wire heating circuit is connected in parallel with the winding of the electric heating wire through at least two wire electrodes. Electrically connected to the wire electrode or coated with solder. The heating wire is wound around the tubular layer and the wire electrode, and is laminated with an adhesive film layer. The adhesive film layer is compounded with at least an electrically insulating plastic tube manufactured by an extrusion process. The outer surface of the tubular electrothermal film layer and the wire electrode is at least tightly wrapped with an electrically insulating air interlayer insulating plastic tube manufactured by an extrusion process. The extruded electrically insulated air sandwich insulation plastic tube is a set of two tubes, and at least two symmetrically distributed positioning support ribs are disposed between the two tubes. The electric heating wire heat-insulating plastic tube is electrically insulated on the inner wall of the plastic tube or combined with other tubes, and the electric heating wire heat-heats the plastic tube to the outer hollow wall of the annular hollow interlayer air-insulation tube, or is composited with other materials.

[0008] A composite electric heating wire thermal insulation plastic tube, comprising an electric insulating tube, a heating wire, an electrical connecting wire electrode, and a plastic tube. A composite electric heating wire thermal insulation plastic tube is coated with an adhesive film layer on the outer wall of the electric insulating tube. At least two wire electrodes are arranged, symmetrically distributed and fixed on the outer tube wall of the plastic tube coated with the adhesive film layer, the electric heating wire is evenly distributed, wrapped and fixed on at least two wire electrodes to form a heating wire and The electric wire of the wire electrode that is well electrically connected is wound around the tubular layer. The electric heating wire heating circuit is connected in parallel with the winding of the electric heating wire through at least two wire electrodes. Electrically connected to the wire electrode or coated with solder. The heating wire is wound around the tubular layer and the wire electrode, and is laminated with an adhesive film layer. The adhesive film layer is compounded with at least an electrically insulating plastic tube manufactured by an extrusion process. The outer surface of the tubular electrothermal film layer and the wire electrode is at least tightly wrapped with an electrically insulating air sandwich insulating plastic tube manufactured by an extrusion process. The extruded electrically insulated air sandwich insulation plastic tube is a set of two tubes. Between the two tubes, at least two symmetrically distributed positioning support ribs are provided. The electric heating wire heat-insulating plastic tube is insulated on the inner wall of the plastic tube or has other tubes, and the electric heating wire heat-heats the plastic tube to the outer wall of the annular hollow interlayer air-insulation tube, or is composited with other materials.

[0009] A composite electric heating wire thermal insulation plastic tube, wherein the electrical connection wire electrode comprises a copper wire and an aluminum wire, and the electrical connection wire electrode comprises a single-strand wire, a multi-strand wire, a ribbon wire, and a copper-steel multi-strand composite Wire, copper-steel ribbon composite wire.

[0010] A composite electric heating wire thermal insulation plastic tube, the bonding glue is a conventional adhesive or oxygen barrier adhesive.

[0011] A composite electric heating wire thermal insulation plastic tube, the electrical insulation tube is a plastic tube, a glass steel tube, a glass tube or ceramic pipe. The oxygen barrier adhesive is applied to the junction between the at least one tube of the electric heating composite plastic heating pipe

[0012] A composite electric heating wire thermal insulation plastic tube, the inner wall of the electric insulation tube is composited with a metal tube, a glass tube, a ceramic tube, a cement tube, and a glass steel tube. The oxygen barrier adhesive is applied to the junction between the electric heating compound plastic heating tube and at least one of the tubes.

[0013] A composite electric heating wire thermal insulation plastic tube, the electric heating wire electric heating and insulating plastic tube annular hollow interlayer air insulation tube between the inner and outer tube interlayer, filled with other insulation materials. On the outer surface of the annular hollow sandwich air-insulation tube of the electric heat-treating plastic composite pipe, other tubes are tightly packed. The other tube is a foam material insulation tube, and the outer surface of the foam material insulation tube is self-skinning or a composite skin. The outer surface of the outer tube of the annular hollow interlayer air insulation tube is provided with a reflective film, or the outer surface of the outer surface of the annular hollow interlayer air insulation tube is provided with a reflective film, or the outer surface of the outer surface of the heat insulating material tube is provided with a reflective film. . Or at least one of the outer surface of the annular hollow interlayer air heat insulating tube, the outer surface of the foamed material heat insulating tube, and the outer surface of the composite skin is laminated with a reflective film. Or a reflective film is laminated on the outer skin of each layer of pipe.

Advantageous effects of the invention

Beneficial effect

[0014] A composite electric heating wire thermal insulation plastic tube can quickly and evenly heat the inner wall of the pipeline along the electric heating wire with a small amount of electric energy to form a liquid flow path, so that the hot water in the pipeline is along the whole The pipeline is rapidly flowing down the ice, and the control component can control the power of the low-voltage power supply, so that the heat generated by the wire can keep the insulation pipe from freezing, and the water in the pipeline can be maintained at a certain temperature by controlling the power supply, so that the water nozzle is heated. The function of water. The production process is mature and simple, and the strength of the pipeline is greatly improved. Because there is water in the pipeline, the electric heating is not easy to generate overheating. By adjusting the voltage, the power is controllable, which represents the future development direction of the thermostat.

Brief description of the drawing

DRAWINGS

[0015] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0016] In the figure: 1 electric insulation tube, 2 wire electrode, 3 electric heating wire, 4 insulation tube inner tube, 5 positioning support rib, 6 insulation tube outer tube, 7 electric heating film, 8 reflection film, 9 metal tube, 10 insulation Tube layer [0017] In the first embodiment of the composition of FIG. 1 and FIG. 2: a composite electric heating wire thermal insulation plastic tube, comprising an electric insulation tube 1, a heating wire 3, an electrical connection wire electrode 2, an inner tube 4 of the insulation tube, and a heat preservation tube The outer tube 6 is provided with at least two wire electrodes 2 on the outer wall of the electric insulating tube 1, and is symmetrically distributed and fixed on the outer tube wall of the electric insulating tube 1. The heating wire 3 is evenly distributed, and the winding and wrapping are fixed at at least two. On the wire electrode 2, a heating wire 3 which forms a good electrical connection between the heating wire 3 and the wire electrode 2 is wound around the tubular layer; a winding electric heating wire heating circuit which constitutes the heating wire 3 through at least two wire electrodes 2; a tubular electric heating film layer and The outer surface of the wire electrode is at least tightly wrapped with an electrically insulating air interlayer insulating plastic tube manufactured by an extrusion process; the extruded electrically insulating air interlayer insulating plastic tube is a heat insulating tube inner tube 4 and a heat insulating tube outer tube 6 two tube set Together, at least two symmetrically distributed positioning support ribs 5 are provided between the two tubes.

3 and FIG. 4, in the second embodiment, the electric insulating tube 1 is provided with an electric heating film 7 on the outer surface, and the other is equivalent to FIG. 1 and FIG.

[0019] In the third embodiment of the composition of FIG. 5 and FIG. 6, the inner surface of the electrically insulating plastic tube 4 is provided with a reflective film 8, and the other is equivalent to FIG. 1 and FIG.

[0020] In the fourth embodiment of the composition of FIG. 7 and FIG. 8, the inner wall of the electrically insulating tube 1 is compounded with a metal tube 9, and the other is equivalent to FIG. 1 and FIG.

[0021] In the fifth embodiment of the composition of FIG. 9 and FIG. 10: On the outer surface of the outer tube 4 of the heat insulating tube, a protective tube layer 10 of other materials is compounded. Others are equivalent to Figure 1 and Figure 2.

[0022] In the sixth embodiment of the composition of FIG. 11 and FIG. 12: the inner wall of the electric insulating tube 1 is compounded with a metal tube 9, and the outer surface of the outer tube 4 of the insulating tube is laminated with a protective tube layer 10 of other materials, and the like. Equivalent to Figure 1, Figure 2.

Claims

Claim

[Claim 1] A composite electric heating wire heat-insulating plastic tube, comprising an electric insulating tube, a heating wire, an electric connecting wire electrode, and a plastic tube, wherein: at least two wires are disposed on an outer wall of the electric insulating tube The electrode is symmetrically distributed and fixed on the outer tube wall of the electric insulating tube, and the electric heating wire is evenly distributed, and is wrapped and fixed on at least two wire electrodes to form a heating wire winding tubular layer with good electrical connection between the heating wire and the wire electrode; A heating wire heating circuit is connected in parallel with the winding of the heating wire through at least two wire electrodes; an electrode is electrically connected to the wire electrode, or is coated with solder; the heating wire is wound around the tubular layer and the wire electrode, and at least is compounded by an extrusion process. Electrically insulated plastic tube; on the outer surface of the tubular electric heating film layer and the wire electrode, at least tightly wrapped with an electrically insulating air interlayer insulating plastic tube manufactured by an extrusion process; the extruded electrically insulating air interlayer insulating plastic tube is a two-tube set Together, there are at least two symmetrically distributed positioning support ribs between the two tubes; The electric insulating tube of the electric heating and heat-insulating plastic tube is combined with other tubes on the inner wall, and the electric heating wire heat-heating and insulating the plastic tube is arranged on the outer tube wall of the annular hollow interlayer air-insulated tube, or is composited with other materials.

[Claim 2] A composite electric heating wire thermal insulation plastic tube, comprising an electric insulation tube, a heating wire, an electrical connection wire electrode, an adhesive glue, a plastic tube, and the like: on the outer wall of the electric insulation tube, coating There is a bonding film layer; at least two wire electrodes are arranged, symmetrically distributed and fixed on the outer tube wall of the plastic tube coated with the adhesive film layer, the heating wire is evenly distributed, and the wire is wrapped and fixed on at least two wires. On the electrode, a heating wire forming a heating wire and a wire electrode is electrically connected to the tubular layer; forming a heating wire heating circuit through at least two wire electrodes and a winding of the heating wire; electrically connecting the wire electrode, or being coated with solder The electric heating wire is wound around the tubular layer and the wire electrode, and at least is combined with an electrically insulating plastic tube manufactured by an extrusion process; the outer surface of the tubular electrothermal film layer and the wire electrode is at least tightly wrapped and electrically insulated by an extrusion process. Air sandwich insulation plastic tube; extruded electrically insulated air sandwich insulation plastic tube for two tubes together, between two tubes, at least two Symmetrically evenly distributed positioning support ribs; electric heating wire electrically insulated plastic tube inner wall of electrical insulating tube or composite with other tubes, electric heating wire electric heating plastic tube annular hollow interlayer air insulation tube outer tube wall, or composite Insulation tube layer for other materials.

[Claim 3] A composite electric heating wire thermal insulation plastic tube, comprising an electric insulation tube, a heating wire, an electric connection wire electrode, an adhesive glue, a plastic tube, and the like: on the outer wall of the electric insulation tube, at least There are two wire electrodes, which are symmetrically distributed and fixed on the outer tube wall of the electric insulating tube. The heating wire is evenly distributed, and is wrapped and fixed on at least two wire electrodes to form a heating wire wound with a good electrical connection between the heating wire and the wire electrode. a tubular layer; is formed by at least two wire electrodes, and a heating wire heating circuit in parallel with the winding of the heating wire; electrically connecting the wire electrode or coated with solder; the heating wire is wound around the tubular layer and the wire electrode, and the bonding glue is composited a film layer; at least a composite of an electrically insulating plastic tube manufactured by an extrusion process; and an outer surface of the tubular electrothermal film layer and the wire electrode, at least tightly wrapped and electrically insulated by an extrusion process Sandwich insulation plastic tube; extruded electrically insulated air sandwich insulation plastic tube for two tubes together, between the two tubes, at least There are two symmetrical and evenly distributed positioning support ribs; the electric heating wire electrically heats the inner wall of the insulating tube of the plastic tube or is combined with other tubes, and the electric heating wire heats the plastic tube to the outer hollow wall of the annular hollow interlayer air insulation tube. , or a composite insulation layer with other materials.

[Claim 4] A composite electric heating wire thermal insulation plastic tube, comprising an electric insulation tube, a heating wire, an electrical connection wire electrode, an adhesive glue, a plastic tube, and the like: on the outer wall of the electric insulation tube, coating There is a bonding film layer; at least two wire electrodes are arranged, symmetrically distributed and fixed on the outer tube wall of the plastic tube coated with the adhesive film layer, the heating wire is evenly distributed, and the wire is wrapped and fixed on at least two wires. On the electrode, a heating wire forming a heating wire and a wire electrode is electrically connected to the tubular layer; forming a heating wire heating circuit through at least two wire electrodes and a winding of the heating wire; electrically connecting the wire electrode, or being coated with solder The electric heating wire is wound on the tubular layer and the wire electrode, and is combined with an adhesive film layer; the adhesive film layer is at least combined with an electrically insulating plastic tube manufactured by an extrusion process; the outer surface of the tubular electric heating film layer and the wire electrode Above, at least tightly wrapped with an electrically insulating air sandwich insulation plastic tube manufactured by an extrusion process; extruded electrically insulated air sandwich insulation plastic tube is a two-tube set Together, there are at least two symmetrically distributed positioning support ribs between the two tubes; the electric heating wire electrically heats the inner wall of the insulating tube of the plastic tube or is compounded with other tubes, and the electric heating wire heats the plastic tube. Annular hollow sandwich air insulation tube on the outer tube wall, or composite insulation layer with other materials. The composite electric heating wire thermal insulation plastic tube according to claim 1, 2, 3 or 4, wherein: the electrical connection wire electrode comprises a copper wire and an aluminum wire, and the electrical connection wire electrode comprises a single-strand wire and a plurality of strands. Conductor, strip conductor, copper-steel multi-strand composite conductor, copper-steel ribbon composite conductor.

A composite electric heating wire thermal insulation plastic tube according to claim 1, 2, 3 or 4, wherein: the adhesive is a conventional adhesive or an oxygen barrier adhesive.

A composite electric heating wire thermal insulation plastic tube according to claim 1, 2, 3 or 4, wherein: the electrical insulating tube is a plastic tube, a glass tube, a glass tube or a ceramic tube; and the oxygen barrier adhesive coating Replicating at the junction between at least one layer of tubes of the electric heating composite plastic heating pipe. A composite electric heating wire thermal insulation plastic pipe according to claim 1, 2, 3 or 4, characterized in that: the inner wall of the electric insulating pipe is composited with a metal pipe, a glass pipe, a ceramic pipe, a cement pipe, a glass pipe The oxygen barrier adhesive is applied to the junction between at least one layer of the electric heating plastic heating pipe.

A composite electric heating wire thermal insulation plastic tube according to claim 1, 2, 3 or 4, characterized in that: the electric heating wire electrically heats the plastic tube between the inner and outer tube interlayers of the annular hollow interlayer air insulation tube. The filling composite has other thermal insulation materials; the outer surface of the annular hollow interlayer air insulation pipe of the electric heat tracing plastic composite pipe is tightly compounded with other pipes; the other pipe is a foaming material insulation pipe, and the outer surface of the foaming material insulation pipe is Self-skinning, or composite skin; annular hollow interlayer air insulation tube on the outer tube surface is provided with a reflective film, or annular hollow interlayer air insulation tube outer surface composite insulation material tube is provided with a reflective film, or insulation material tube a reflective film is disposed on the outer surface composite skin; or an outer surface of the annular hollow interlayer air heat insulating tube, an outer surface of the foamed material heat insulating tube, and an outer surface of the composite skin are composited with a reflective film; or each layer The outer skin of the pipe is compounded with a reflective film.