WO2021177708A1

WO2021177708A1 - Snow melting system

Info

Publication number: WO2021177708A1
Application number: PCT/KR2021/002579
Authority: WO
Inventors: 이창항
Original assignee: 이창항
Priority date: 2020-03-02
Filing date: 2021-03-02
Publication date: 2021-09-10
Also published as: KR102280829B1

Abstract

The present invention relates to a snow melting system comprising: a heating unit printed on the surface of a road so as to generate heat; at least one recessed unit provided to be recessed at a predetermined depth from the surface of the road in one direction; a power supply unit inserted into the recessed unit so as to supply a current; and a power transfer unit connected to one end of the power supply unit so as to transmit, to the heating unit, the power supplied from the power supply unit, wherein the heating unit is a carbon nanotube (CNT).

Description

Snowmelting system

The present invention relates to a snowmelting system where icing protection is desired.

In general, as a prior art related to a heating cable for removing ice on the road surface due to snowfall in winter or a temperature difference, there is Patent Registration No. 10-1157187 "Cable for snowmelting". A road snowmelting cable with an improved structure that can prevent damage and have a semi-permanent lifespan, and has significantly improved thermal insulation. The wound-type conductor is wound, a heating wire composed of an insulating inner shell installed to surround the outer peripheral surface of the wire-wound conductor, and the power wire and the heating wire are wound along the outer peripheral surface to form an air layer therein, and heat generated from the heating wire A diffusion banding part configured to diffuse, one or more reinforcing wires disposed in the air layer and provided with a steel wire to improve tensile force and strength, and the diffusion banding part coated on the outer surface of the power wire, heating wire and diffusion banding A cable for snowmelting road including a metal coating layer configured to protect the part and to diffuse heat transferred through the diffusion bending part to the outside is provided.

Furthermore, as a prior art, there is a registered utility model No. 20-0307204 "heating wire", in which the prior art is a heater wire that generates heat according to the flow of current in the insulating coating, and a lead wire having a role of a current passage is the length of the insulating coating. They are arranged parallel to each other along the direction, and one terminal of the power wire is connected to one end of the heater wire, the other terminal of the power wire is connected to one end of the lead, and the other end of the heat wire and the lead wire are connected to each other. A heating wire in which current flows in opposite directions to a heater wire and a lead wire adjacent to the heater wire, and electromagnetic waves generated from the heater wire and electromagnetic waves generated in the opposite direction from the lead wire are canceled and extinguished.

However, the two prior arts relate to a heating cable (heating wire), and when the heating cable is buried, a means for fixing the heating cable in place is not provided, so it cannot be accurately fixed at a desired position, and the heating cable is fixed on the road surface. Even if there is a means to make it available, there was an inconvenience of paving the asphalt concrete in order not to expose the heating cable to the road surface.

Furthermore, since the heating cable consumes a large amount of electricity per heating wire area, there is a problem in that the power efficiency is not good.

An object of the present invention is to provide a snowmelting system that solves the inconvenience in the process caused by using the existing heating cable when constructing the snowmelting system on the road surface as described above.

In addition, the present invention aims to solve the problem of providing a snowmelting system with increased power efficiency by reducing the amount of electricity consumed per area of the heating wire.

In order to solve the above problems, the present invention provides a heating part that is printed on the surface of a road to generate heat, at least one or more recessed parts provided to be recessed to a predetermined depth from the surface along one direction of the road, and the current is inserted into the recessed part a power supply unit for supplying Providing a system is a means of solving the problem.

In addition, the power transmission unit provides a snowmelting system comprising a first power transmission unit connected to the positive pole of the power supply unit and a second power transmission unit connected to the negative pole of the power supply unit as a means of solving the problem.

In addition, the first power transmission unit is provided on one side along the traveling direction of the road, and the second power transmission unit is provided on the other side along the traveling direction of the road. do it with

In addition, the heating unit Snow characterized in that it comprises at least one first heating unit provided to be in surface contact with the power transmission unit and at least one or more second heating units provided to be in surface contact with the first heating unit. It is taken as a means to solve the problem to provide a melting system.

In addition, as a means of solving the problem, the second heat generating unit is provided in a region where the wheel part of the vehicle and the road come into contact along the movement path of the wheel of the vehicle running on the road. .

In addition, as a means of solving the problem, the second heating unit provides a snowmelting system characterized in that it is provided to be perpendicular to the movement path of the wheels of the vehicle running on the road.

In addition, the power transmission unit inserted into the recess is provided to be electrically connected to the power supply, and between the outer peripheral surface of the power transmission unit and the power supply and the inner circumferential surface of the recessed part is a crack or void inside the recess. To provide a snowmelting system, characterized in that provided with a thermosetting resin for filling the problem as a means of solving the problem.

The present invention can provide a snowmelting system that solves the inconvenience in the process caused by using the existing heating cable when constructing the snowmelting system on the road surface as described above.

In addition, the present invention can provide a snowmelting system with increased power efficiency by reducing the amount of electricity consumed per area of the heating wire.

1 is a schematic diagram of a snowmelting system according to an embodiment of the present invention.

2 is a diagram illustrating an arrangement structure of a heat generating unit according to an embodiment of the present invention.

3 shows a depression according to an embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings, embodiments of the present invention will be described in detail so that those of ordinary skill in the art can easily implement them. However, the present invention may be embodied in various different forms and is not limited to the embodiments described herein. And in order to clearly explain the present invention in the drawings, parts irrelevant to the description are omitted, and similar reference numerals are attached to similar parts throughout the specification.

Throughout the specification, when a part "includes" a certain component, it means that other components may be further included, rather than excluding other components, unless otherwise stated. In addition, parts indicated with the same reference numerals throughout the specification mean the same components.

Since the size and thickness of each component shown in the drawings are arbitrarily indicated for convenience of description, the present invention is not necessarily limited to the bar shown in the drawings, and the thickness is enlarged to clearly express various parts and regions.

And throughout the specification, when a part "includes" a certain component, this means that other components may be further included, rather than excluding other components, unless otherwise stated.

In addition, terms such as "... unit", "... means", "... means the unit of

Referring to FIG. 1 , the snowmelting system according to an embodiment of the present invention includes at least a heating part 210 that is printed on one side of a road to generate heat, and is provided to be depressed by a predetermined depth from the surface along one direction of the road. One or more depressions 310, a power supply 250 inserted into the depression to supply current, and a power transmission unit connected to one end of the power supply to transfer the power supplied from the power supply to the heating unit ( 230) and the control unit 100 for supplying and controlling power to the power supply unit 250 may be provided.

The control unit 100 may be provided to provide power to the snowmelting system of the present invention and to control under what conditions it operates.

In relation to power supply, the control unit 100 may be provided to receive power directly from an existing power source, and a solar heat collecting plate is provided to operate the present snowmelting system using power generated using solar heat. have.

On the other hand, the control unit 100 may be provided to include a moisture sensor, and the snowmelting system of the present invention applies heat to the road when it snows or rains in winter, so that slippery ice is generated on the surface of the road or snow is accumulated. In order to prevent this, it is necessary to be able to measure the situation of snow or rain.

Therefore, it is possible to measure snow or rain due to the moisture sensor provided in the control unit 100, thereby having an effect of determining whether the snowmelting system is in operation.

The power transmission unit 230 may be provided to include a first power transmission unit 231 connected to the positive pole of the power supply unit and a second power transmission unit 233 connected to the negative pole of the power supply unit. In addition, the first power transmission unit 231 may be provided on one side along the traveling direction of the road, and the second power transmission unit 233 may be provided on the other side along the traveling direction of the road.

The power transmission unit 230 may be made of an inert metal having high thermal conductivity, such as copper or nickel.

Since the snowmelting system of the present invention assumes snow or rain, the power transmission unit 230 has no choice but to be exposed to the liquid. can be prevented with

The heating unit 210 includes at least one first heating unit 211 provided to be in surface contact with the power transmission unit 230 and at least one or more second heating units provided to be in surface contact with the first heating unit 211 . It may be provided to include two heat generating units 213 .

The structure of the heat generating part 210 of the present invention will be described in more detail later with reference to FIG. 2 .

The heating part 210 may be provided with carbon nanotubes (CNT).

A carbon nanotube is a new material in which hexagons made of 6 carbons are connected to each other to form a tubular shape. Since the diameter of the tube is only a few to several tens of nanometers, it has come to be called a carbon nanotube.

The electrical conductivity is similar to that of copper, the thermal conductivity is like diamond, the best in nature, and the strength is 100 times greater than that of steel.

Carbon fibers break even when only 1% strain is deformed, whereas carbon nanotubes can withstand even 15% strain.

In addition, the carbon nanotube (CNT) used in the heat generating part 210 may be provided as a carbon nanotube doped with a metal.

The paste to which the metal-carbon nanotube is applied has almost zero coefficient of temperature resistance, and there is no change in resistance value even after repeated use, so it is easy to secure reliability and improves current flow.

On the other hand, as described above, in the prior art, in order to construct a snowmelting system, a heating cable is buried in the ground and covered with a packaging material again, so that the construction is complicated and takes a long time.

However, since the heating part 210 according to an embodiment of the present invention is provided with carbon nanotubes that can be solidified after printing in liquid form, a road is cut to bury the heating cable in the ground, and the heating cable is buried after There is an effect that the construction procedure is simplified and the construction time is shortened because there is no need to cover again with the pavement material, and the heating part 210 is printed on the surface of the road and then solidified.

Furthermore, in the case of the existing heating cable, since it is bulky, it had to be buried inside the road so as not to interfere with the operation of cars.

Accordingly, more power was consumed to maintain the surface temperature of the road at the target temperature because heat had to be generated from the inside of the road and transferred to the surface of the road.

However, since the heating part 210 according to the present invention is printed on the road surface, the power consumed to maintain the surface temperature of the road at the target temperature can be reduced by 50% or more compared to the case of using a conventional heating cable. It works.

Referring to FIG. 2 , the heating unit 210 according to an embodiment of the present invention includes at least one first heating unit 211 and the first heating unit ( 213) and may be provided to include at least one second heat generating part 213 provided to be in surface contact.

More specifically, referring to FIG. 2A , at least one of the first heating part 211 and the second heating part 213 may be provided in the same direction as the traveling direction of the vehicle, and the second heating part ( 213) may be provided in a region where a wheel portion of the vehicle and the road come into contact along a movement path of the wheel of the vehicle running on the road.

For this reason, since it is possible to melt snow or ice on the road in the portion in contact with the wheel part of the vehicle with an appropriate amount of electric power, energy efficiency is significantly increased compared to the conventional snowmelting system.

In addition, as shown in FIG. 2B , the second heat generating part 213 may be provided to be perpendicular to the movement path of the wheels of the running vehicle.

Due to this, it is possible to melt all the snow or ice accumulated on the road, and as described above, the heating part of the present invention is not a method of conducting heat from a heating cable buried in the interior of the road to the surface of the road, but on the surface of the road. Since heat is supplied in a way that generates heat directly, energy efficiency is about twice or more higher than that of the conventional snowmelting system even if it is provided to cover all the drawings in the manner shown in FIG. 2(b).

Since the calculation of such energy efficiency is a part that can be clearly derived by those of ordinary skill in the art, an additional description thereof will be omitted.

On the other hand, the arrangement structure of the heat generating unit shown in FIGS. 2 (a) and 2 (b) is shown as an example for convenience of explanation, and it is used to melt snow or ice accumulated on the road by supplying heat to the surface of the road. If the arrangement is sufficient, it is not intended to limit the scope of the present invention.

3 shows a depression according to an embodiment of the present invention.

Referring to FIG. 3 , the recessed part 310 of the present invention is provided so that a part of the power transmission unit 230 can be inserted, and the power transmission unit 230 is electrically connected to the power supply unit 250 . It can be provided so that

The power transmission unit 230 and the power supply unit 250 may be provided to be directly electrically connected, or may be provided to be electrically connected to the inside of the connector 400 as shown in FIG. 3 .

A thermosetting resin 330 may be provided between the outer peripheral surface of the power transmission unit 230 and the power supply unit 250 and the inner peripheral surface of the depression 310 to fill cracks or voids inside the depression.

In order for the power transmission unit 230 and the power supply unit 250 to be buried in a part of the road, a cutting process of excavating a part of the road is essentially accompanied.

In the existing cutting process, it was common to use cement mortar to refill the cut area, but since it is used only for filling without a separate compaction operation, the power transmission unit 230 or There was a problem in that voids were generated around the power supply unit 250 .

When these voids occur, foreign substances such as rainwater penetrate and deteriorate the durability of the power transmission unit 230 or the power supply unit 250, resulting in damage.

There is a problem that fatigue fracture may occur due to continuous stress due to vibration of a vehicle moving on the road.

Therefore, the snowmelting system according to an embodiment of the present invention is between the outer peripheral surface of the power transmission unit 230 and the power supply unit 250 and the inner peripheral surface of the depression 310, cracks or voids inside the depression. A thermosetting resin 330 is provided to fill it, and it is possible to prevent the occurrence of microcracks in the recessed portion or voids around the power transmission unit 230 and the power supply unit 250, thereby increasing durability. .

On the other hand, as an example of the thermosetting resin 330, low-viscosity polyurethane may be used.

In the case of low-viscosity polyurethane, the curing time from liquid to solid phase is very short, about 15 minutes, and since the elasticity is high, all of the above-described effects can be achieved.

However, the above-described low-viscosity polyurethane is given as an example for convenience of explanation, and the user may use other resinous materials other than low-viscosity polyurethane as necessary, which does not limit the scope of the present invention.

The above description of the present invention is for illustration, and those of ordinary skill in the art to which the present invention pertains can understand that it can be easily modified into other specific forms without changing the technical spirit or essential features of the present invention. will be. Therefore, it should be understood that the embodiments described above are illustrative in all respects and not restrictive. For example, each component described as a single type may be implemented in a dispersed form, and likewise components described as distributed may be implemented in a combined form.

The scope of the present invention is indicated by the following claims, and all changes or modifications derived from the meaning and scope of the claims and their equivalent concepts should be construed as being included in the scope of the present invention.

The present invention relates to a snowmelting system, and has applicability in the industries of civil engineering and construction.

Claims

a heating part that is printed on the surface of the road to generate heat;

at least one depression provided to be depressed by a predetermined depth from the surface along one direction of the road;

a power supply unit inserted into the depression to supply a current;

a power transmission unit connected to one end of the power supply unit to transfer the power supplied from the power supply unit to the heating unit;

The snow melting system, characterized in that the heating part is a carbon nanotube (CNT).
The method of claim 1,

The power transmission unit,

a first power transmission unit connected to the positive pole of the power supply unit; and

Snowmelting system, characterized in that it comprises a second power transmission unit connected to the negative pole of the power supply unit.
3. The method of claim 2,

The first power transmission unit is provided on one side along the traveling direction of the road,

The snowmelting system, characterized in that the second power transmission unit is provided on the other side along the traveling direction of the road.
The method of claim 1,

The heat generating unit,

at least one first heating unit provided to be in surface contact with the power transmission unit; and

Snowmelting system, characterized in that it comprises at least one second heating part provided to be in surface contact with the first heating part.
5. The method of claim 4,

The snowmelting system, characterized in that the second heat generating unit is provided in a region where the wheel portion of the vehicle and the road come into contact along a movement path of the wheel of the vehicle running on the road.
5. The method of claim 4,

The snowmelting system, characterized in that the second heating part is provided to be perpendicular to the movement path of the wheels of the vehicle running on the road.
The method of claim 1,

The power transmission unit inserted into the recess is provided to be electrically connected to the power supply unit,

A snowmelting system, characterized in that a thermosetting resin for filling cracks or voids inside the depression is provided between the outer peripheral surface of the power transmission part and the power supply part and the inner peripheral surface of the depression part.