JPH06264408A - Snow melting panel - Google Patents

Abstract

PURPOSE:To prevent heat from flowing downward and melt snow with better thermal efficiency by installing a heat generation pipe between an upper layer comprising asphalt or the like and a lower layer comprising an insulating foaming material or only into the upper layer. CONSTITUTION:A snow melting panel 3 is formed with an upper layer comprising concrete and asphalt or the like and a lower layer comprising an insulating foaming material, such as glass long fiber reinforced hard urethane foam or the like. Then, a heat generation pipe 4 is buried in the upper layer 1 or installed between the upper layer 1 and the lower layer 2. If necessary, a good thermal conducting sheet, such as an aluminum foil 6 is intervened on the surface of the lower layer 2. A heating medium, such as hot water is applied to the heat generation pipe 4, thereby melting snow on the surface of a road with the heat.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a snow melting panel used for snow melting on a road surface or a roof in a snowy area.

[0002]

2. Description of the Related Art Conventionally, as a snow melting panel used for snow melting on a road surface or a roof in a snowy area, for example, as shown in FIG. 3, a panel body 30 such as concrete or asphalt is used.
A snow melting panel in which a hot water pipe 31 and a reinforcing bar 32 are embedded is disclosed in JP-A-64-36803 and JP-A-64-3.
It is disclosed and known in the 6804 publication.

Further, as shown in FIG. 4, when an insulated electric wire 41 is passed through the steel pipe 40 having a ferromagnetism without being fixed and an alternating current is passed through the insulated electric wire 41, an alternating current is generated near the inner skin of the steel pipe 40. An induction skin current heating tube configured so that a secondary current having a current as a primary current flows in a concentrated manner and the secondary current does not practically flow outside the steel pipe, or an insulated wire 41 as shown in FIG. And a steel pipe 40 are connected in series to an AC power source, and a series skin current heating tube is constructed so that the electric current concentrates only near the inner skin of the steel pipe and does not practically flow outside the steel pipe. A concrete block with an electric snow melting device in which a plurality of concrete blocks are arranged in the concrete block is disclosed and known in Japanese Patent Laid-Open No. 57-6002.

[0004]

By the way, the snow melting panel has a hot water pipe 31 embedded in the panel body 30.
The concrete block with an electric snow melting device heats the road surface with the heat released by the heat medium, and the heat generated by the steel pipes arranged in the concrete block causes snow and freezing on the road surface. However, in any case, there is a problem that the heat efficiency is poor because there is a downward heat flow that does not require heating in addition to the heating of the road surface and the like.

The snow melting panel of the present invention has been made in view of the above problems, and an object of the present invention is to solve the above problems, prevent heat from flowing out downward, and improve the thermal efficiency of the snow melting panel.

[0006]

The snow melting panel of the present invention comprises:
A snow melting panel consisting of two layers, an upper layer made of concrete and asphalt, and a lower layer made of a foam material having heat insulating properties. A heating pipe for passing a heating medium for heating a road surface or the like is embedded in the upper layer or the upper and lower layers. It is characterized in that it is arranged between and.

In the snow melting panel of the present invention, a foam material such as long fiber reinforced rigid urethane foam and polystyrene foam can be preferably used as the foam material of the lower layer.

As the heat generating pipe, a copper pipe, a steel pipe, a stainless steel pipe, a crosslinked polyethylene pipe, a polybutene pipe, a metal reinforced crosslinked polyethylene pipe, etc. can be used.

Further, the upper layer and the lower layer can be connected to each other by bar arrangement or unevenness. It is desirable that the upper layer and the lower layer are connected to each other by bar arrangement or concave-convex fitting because the upper layer and the lower layer are tightly connected.

When the heat generating pipe is arranged between the upper layer and the lower layer, if a sheet having a high thermal conductivity, such as an aluminum foil sheet, is interposed on the surface of the lower layer, the heat of the heat generating pipe will reach the upper layer. It is desirable because it is easy to transmit on average.

When the heating pipe is arranged between the upper layer and the lower layer, if the groove for burying the heating pipe is formed on the surface of the lower layer, the heating pipe can be easily arranged on the surface of the lower layer. Moreover, after the pipe is arranged in the groove, it is possible to fix the pipe on the pipe with aluminum tape or the like, and it is not necessary to bind the pipe to the bar arrangement, which is desirable.

[0012]

The snow melting panel of the present invention is a snow melting panel consisting of two layers, an upper layer made of concrete and asphalt, and a lower layer made of a foam material having a heat insulating property, in which a heat generating medium for heating a road surface is contained. Since the heating pipe to be passed is embedded in the upper layer or arranged between the upper layer and the lower layer, when the heating medium is passed through the heating pipe to heat the road surface, etc.,
Heat does not move to the lower side where heating is not required, and the thermal efficiency of the snow melting panel is improved. The upper layer also serves to protect the heat generating pipe.

[0013]

EXAMPLE An example of the snow melting panel of the present invention will be described with reference to the drawings. FIG. 1 is a sectional view showing an example of the snow melting panel of the present invention, and FIG. 2 is a sectional view showing another example of the snow melting panel of the present invention.

1 and 2, 3 is a snow melting panel,
Reference numeral 1 is an upper layer of the snow melting panel 3, 2 is a lower layer of the snow melting panel 3, upper layer 1 is concrete, and lower layer 2 is glass long fiber reinforced hard urethane foam. Reference numeral 4 denotes a heat generating pipe, and the heat generating pipe 4 is either embedded in the upper layer 1 (FIG. 1) or arranged on a groove 5 provided in the lower layer 2 (FIG. 2). An aluminum foil sheet 6 is arranged between the upper layer 1 and the lower layer 2 and between the heat generating pipe 4 and the groove 5. 7 is a reinforcing bar for reinforcing and connecting the upper layer 1 and the lower layer 2, and 8 is an upper layer 1 and the lower layer 2
The concavo-convex portion 8 is composed of a convex portion 81 provided on the upper layer 1 and a concave portion 82 provided on the lower layer 2, and the convex portion 81 is closely fitted to the concave portion 82. The concaves and convexes of the upper layer 1 and the lower layer 2 of the unevenness 8 may be reversed. That is, the upper layer 1 may be provided with a concave portion and the lower layer 2 may be provided with a convex portion.

A heat generating pipe 4 using the snow melting panel 3 described above.
When the snow is melted on the road surface through the heat generating medium, the heat of the heat generating pipe 4 does not flow downward because the lower layer is made of a heat insulating material, and the heat is transferred only upward.

In the snow melting panel of the present invention, the upper and lower two
It is a snow melting panel consisting of layers, the upper layer is concrete,
The asphalt and the lower layer are made of a heat insulating foam material, and a heat generating pipe for passing a heat generating medium for heating the road surface or the like is embedded in the upper layer or arranged between the upper layer and the lower layer. When heating the road surface etc. through the medium, heat transfer to the lower side that does not require heating is prevented,
Thereby, the thermal efficiency of the snow melting panel can be improved. Further, the heat generating pipe can be protected by the upper layer.

[Brief description of drawings]

FIG. 1 is a sectional view showing an example of a snow melting panel of the present invention.

FIG. 2 is a cross-sectional view showing another example of the snow melting panel of the present invention.

FIG. 3 is a plan view showing an example of a conventional snow melting panel.

FIG. 4 is a perspective view showing another example of a conventional snow melting panel.

FIG. 5 is a perspective view showing still another example of a conventional snow melting panel.

[Explanation of symbols]

 1 Upper layer 2 Lower layer 3 Snow melting panel 4 Heating pipe 5 Groove 6 Aluminum foil 7 Reinforcing bar 8 Unevenness

Claims (1)

[Claims] 1. A snow melting panel consisting of upper and lower two layers,
The upper layer is made of concrete, asphalt, the lower layer is made of a foamed material having heat insulation properties, and a heat-generating pipe for passing a heat-generating medium for heating the road surface or the like is embedded in the upper layer or arranged between the upper layer and the lower layer. .