CN218450572U - Composite heating water pipe - Google Patents

Abstract

The utility model discloses a composite heating water pipe, which comprises a metal pipe, an insulating layer, a heating wire and a graphene layer; the insulating layer is coated on the outer surface of the metal pipe; the heating wire is wound on the outer surface of the insulating layer; the graphene layer is coated on the outer surfaces of the insulating layer and the heating wire. Insulating layer coating plays insulating effect on the metal tube outer surface, prevents that the water in metal tube and the metal tube is electrically conductive, guarantees the security, and the heater winding plays the effect of heating at the insulating layer surface, and graphite alkene layer coating is at the surface of insulating layer and heater, and during the circular telegram, heat is conducted to graphite alkene layer from the heater, and graphite alkene layer conducts the received heat to the insulating layer surface of whole root metal tube rapidly. In addition, in a certain temperature range, the resistance of the graphene is reduced along with the rise of the working temperature, and the power tends to rise, so that the power attenuation of the heating wire part caused by the rise of the temperature is compensated, and the smooth characteristic of the power utilization is realized.

Description

Composite heating water pipe

Technical Field

The utility model relates to a heating pipe field, in particular to compound heating water pipe.

Background

The process used at present for heating the water pipe generally is to sinter an insulating material on stainless steel, then cover a heating body on the basis of the insulating layer, and then cover the heat-insulating material, and has the advantages of simple process and obvious PTC effect, wherein the heat of the heating pipe is conducted by the contact area, and the area utilization rate of the heating body is less than 50 percent due to the conductive interval, so that the unit power density is increased, and the resistance is increased along with the increase of the working temperature, and the power is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a compound heating water pipe can increase heat conduction area, realizes simultaneously that power consumption's is smooth-going, and it is effectual to heat.

The utility model provides a technical scheme that its technical problem adopted is:

a composite heating water pipe comprising: the device comprises a metal tube, an insulating layer, a heating wire and a graphene layer; the insulating layer is coated on the outer surface of the metal pipe; the heating wire is wound on the outer surface of the insulating layer; the graphene layer is coated on the outer surfaces of the insulating layer and the heating wire.

According to the utility model discloses compound heating water pipe has following beneficial effect at least: insulating layer coating plays insulating effect at the metal tube outside surface, prevent that the water in metal tube and the metal tube is electrically conductive, guarantee the security, the heater winding plays the effect of heating at the insulating layer surface, graphite alkene layer coating is at the surface of insulating layer and heater, during the circular telegram, heat is conducted to graphite alkene layer from the heater, because the plane direction heat conductivity of graphite alkene is up to 5300W/mK, graphite alkene layer is received heat, conduct the insulating layer surface of whole root metal tube rapidly, throw away the creepage distance part that remains, make the heat conduction area of whole root metal tube be greater than 95%, when making the thermoelectric conversion efficiency of metal tube improve, effectively reduce the surface power density of heater. In addition, the resistance value of the graphene layer is properly adjusted according to the resistance sheet resistance characteristic, the graphene layer and the existing winding heating wire form a working resistor connected in parallel, and because the graphene has high-temperature superconductivity and NTC change characteristics, the resistance of the graphene is reduced along with the rise of the working temperature in a certain temperature interval, and the power tends to rise, so that the power attenuation of the heating wire part due to the rise of the temperature is compensated, and the smooth characteristic of the power utilization is realized.

According to some embodiments of the utility model, the both ends of tubular metal resonator all are equipped with and are used for fixing the hasp of heater.

The beneficial results are: therefore, the heating wire is fixed, the installation is stable, and the disassembly is convenient.

According to some embodiments of the invention, the catch is a metal ring provided with a notch, the notch being provided at both ends with a first tab and a second tab standing upright.

The beneficial results are: the hasp sets up the becket of banding breach, and convenient to use when needing fixed heater, only needs open first lug and second lug, makes the becket internal diameter grow, then embolias the becket both ends and loosen first lug and second lug again, makes the becket internal diameter diminish to press from both ends clamp of heater tightly fix to the becket both ends.

According to some embodiments of the utility model, first lug is equipped with first bolt hole, the second lug is equipped with corresponding second bolt hole, first bolt hole with the second bolt hole is used for the holding bolt to pass through fixedly.

The beneficial results are: through setting up first bolt hole and second bolt hole, reuse bolt fastening can further fix the heater, guarantees that the working process heater can not loosen.

According to some embodiments of the present invention, the metal tube is made of 430 stainless steel, 443 stainless steel, 444 stainless steel or 445 stainless steel.

The beneficial results are: 430 stainless steel, 443 stainless steel, 444 stainless steel and 445 stainless steel all have better corrosion resistance and high-temperature oxidation resistance, and are suitable for being used as materials of metal pipes.

According to some embodiments of the invention, the insulating layer has a thickness of 80 to 150 microns.

The beneficial results are: the insulating layer of thickness has better insulating effect like this, prevents that the water in metal pipe and the metal pipe is electrically conductive.

According to some embodiments of the present invention, the heating wire is made of 0Cr25Al5 or 0Cr21Al4.

The beneficial results are: both 0Cr25Al5 and 0Cr21Al4 have high oxidation resistance, heat resistance and positive temperature coefficient, and are suitable for being used as materials of heating wires.

According to some embodiments of the present invention, the thickness of the graphene layer is 1.6 to 3.4 nanometers.

The beneficial results are: the graphene layer with the thickness is provided with 5-10 single-layer graphene, the thickness is appropriate, and the graphene layer has good heat-conducting property.

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.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a front view of the other side of FIG. 1;

fig. 3 is an enlarged view of a portion a in fig. 2.

Reference numerals are as follows: the metal tube 100, the insulating layer 110, the heater 120, the graphene layer 130, the latch 140, the notch 150, the first tab 160, the second tab 170, the first bolt hole 180, and the second bolt hole 190.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are exemplary only for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the directional descriptions, such as the directions or positional relationships indicated by upper, lower, front, rear, left, right, etc., are based on the directions or positional relationships shown in the drawings, and are only for convenience of description and simplification of the description, but not for indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present invention.

In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless there is an explicit limitation, the terms such as setting, installing, connecting, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meaning of the terms in the present invention by combining the specific contents of the technical solution.

A composite heating water pipe will be described in detail in a specific embodiment with reference to fig. 1 to 3. It is to be understood that the following description is illustrative only and is not intended as a specific limitation on the invention.

As shown in fig. 1 to 3, a composite heating water pipe includes: metal tubes 100, insulating layer 110, heating wires 120, and graphene layer 130.

Wherein, the insulating layer 110 is coated on the outer surface of the metal tube 100; the heating wire 120 is wound on the outer surface of the insulating layer 110; the graphene layer 130 is coated on outer surfaces of the insulating layer 110 and the heating wire 120. Insulating layer 110 coating plays insulating effect at the 100 surface of tubular metal resonator, prevent that the water in tubular metal resonator 100 and the tubular metal resonator 100 from electrically conducting, guarantee the security, the winding of heater 120 plays the effect of heating at the 110 surface of insulating layer, graphene layer 130 coats the surface at insulating layer 110 and heater 120, during the circular telegram, the heat conducts to graphene layer 130 from heater 120, because the plane direction thermal conductivity of graphite alkene is up to 5300W/mK, graphene layer 130 is received heat, conduct the insulating layer 110 surface of whole tubular metal resonator 100 rapidly, throw away the creepage distance part that remains, make the heat conduction area of whole tubular metal resonator 100 be greater than 95%, when making the thermoelectric conversion efficiency of tubular metal resonator 100 improve, effectively reduce the surface power density of heater 120. In addition, the resistance value of the graphene layer 130 is properly adjusted according to the resistance sheet resistance characteristic, and the graphene has a working resistance connected in parallel with the existing winding heating wire 120, because the graphene has high-temperature superconductivity and NTC change characteristics, the resistance of the graphene is reduced along with the rise of the working temperature in a certain temperature interval, and the power tends to rise, so that the power attenuation of the heating wire 120 due to the rise of the temperature is compensated, and the smooth characteristic of the power utilization is realized.

Specifically, both ends of the metal tube 100 are provided with latches 140 for fixing the heating wire 120. Thus, the heating wire 120 is fixed, the installation is stable, and the disassembly is convenient.

As shown in fig. 1 and 2, the latch 140 is a metal ring provided with a notch 150 having a first tab 160 and a second tab 170 upstanding at opposite ends thereof. The latch 140 is arranged to be a metal ring with a notch 150, so that the use is convenient, when the heating wire 120 needs to be fixed, only the first lug 160 and the second lug 170 need to be opened, the inner diameter of the metal ring is increased, then the metal ring is sleeved in two ends of the metal tube 100, and then the first lug 160 and the second lug 170 are loosened, so that the inner diameter of the metal ring is decreased, and therefore two ends of the heating wire 120 are clamped and fixed to two ends of the metal tube 100.

Accordingly, the first tab 160 is provided with a first bolt hole 180 and the second tab 170 is provided with a corresponding second bolt hole 190, the first and second bolt holes 180, 190 being adapted to receive bolts for fastening therethrough. Through setting up first bolt hole 180 and second bolt hole 190, reuse bolt fastening can further fix heater 120, guarantees that work process heater 120 can not loosen.

The material of the metal pipe 100 is 430 stainless steel, 443 stainless steel, 444 stainless steel, or 445 stainless steel. 430 stainless steel, 443 stainless steel, 444 stainless steel and 445 stainless steel all have better corrosion resistance and high temperature oxidation resistance, and are suitable for being used as the material of the metal pipe 100.

The thickness of the insulating layer 110 is 80 to 150 μm. The insulating layer 110 having such a thickness has a good insulating effect, and prevents the metal pipe 100 and water in the metal pipe 100 from conducting electricity.

The material of the heating wire 120 is 0Cr25Al5 or 0Cr21Al4. Both 0Cr25Al5 and 0Cr21Al4 have high oxidation resistance, heat resistance and positive temperature coefficient, and are suitable as materials of the heating wire 120.

Further, the thickness of the graphene layer 130 is 1.6 to 3.4 nm. The graphene layer 130 with the thickness is provided with 5-10 single-layer graphene, and has proper thickness and better heat conduction performance.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims (8)

1. A composite heating water pipe, comprising:

a metal tube (100);

an insulating layer (110) coated on an outer surface of the metal pipe (100);

the heating wire (120) is wound on the outer surface of the insulating layer (110);

and the graphene layer (130) is coated on the outer surfaces of the insulating layer (110) and the heating wire (120).

2. The composite heating water pipe according to claim 1, wherein both ends of the metal pipe (100) are provided with a locking buckle (140) for fixing the heating wire (120).

3. A composite heating water pipe according to claim 2, wherein the locking buckle (140) is a metal ring provided with a notch, and the notch (150) is provided with a first raised tab (160) and a second raised tab (170) at two ends.

4. A composite heating water pipe according to claim 3, characterized in that the first tab (160) is provided with a first bolt hole (180), the second tab (170) is provided with a corresponding second bolt hole (190), the first bolt hole (180) and the second bolt hole (190) are adapted to receive a bolt for fastening therethrough.

5. A composite heating water pipe according to claim 1, wherein the metal pipe (100) is made of 430 stainless steel, 443 stainless steel, 444 stainless steel or 445 stainless steel.

6. A composite heating water pipe according to claim 1, wherein the thickness of the insulating layer (110) is 80 to 150 μm.

7. The composite heating water pipe according to claim 1, wherein the heating wire (120) is made of 0Cr25Al5 or 0Cr21Al4.

8. A composite heating water pipe according to claim 1, characterized in that the thickness of the graphene layer (130) is 1.6-3.4 nm.

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