KR100394555B1 - Device for prohibit road freezing - Google Patents

Abstract

The present invention relates to a road surface freezing prevention device using geothermal heat to prevent the freezing of the road surface by using geothermal heat in the ground, which can promote safe driving in winter. The structure of the present invention is perpendicular to the ground layer 22 of the road. The body 12 is provided with a hollow portion 14 is buried and the heat transfer medium flows therein, and a heat dissipation portion is provided to heat dissipation heat flowing through the heat transfer medium through the hollow portion 14, concrete and asphalt and It consists of a plurality of heat dissipation fins arranged horizontally below the same pavement layer.

Description

DEEPICE FOR PROHIBIT ROAD FREEZING}

The present invention relates to a device for preventing road ice using geothermal heat, and more particularly, to prevent freezing of road surface by using ground heat in the ground, to prevent freezing of slopes and corners, and to promote safe operation in winter. It relates to a road surface freezing prevention device used.

A road surface defrosting device has been developed to prevent freezing of road surfaces in winter and promote safe driving. As an example, Korean Laid-Open Patent Publication No. 2000-30642 discloses a road surface freezing prevention system and its construction method. The road surface frost prevention system includes an internal heating element and an external heating element with a built-in heating wire, an artificial intelligence sensor connected to these internal and external heating elements by connecting wires, and sensing the environment of the road and transmitting it to the central computer, and by the instructions of the central computer. It is composed of a central voltage regulator for automatically adjusting the heating wire.

Such a heating method takes a lot of installation and maintenance costs, and in particular has a drawback of high power consumption.

In addition, Japanese Patent Laid-Open No. 56-77405 discloses an apparatus for preventing road freezing using geothermal heat. The apparatus described in this publication embeds a heating pipe in which the upper end is disposed near the road surface. Moreover, the radiator fin which is wider than this heating pipe was connected to the lower end part of the heating pipe located in the ground. And, even in winter, the ground is maintained at a somewhat high temperature, but the heat in the ground is transferred to the road surface by a heating pipe, thereby preventing snow from accumulating on the road surface. However, the apparatus described in this publication requires a large number of radiator pins, and the overall structure is complicated and maintenance costs are high.

In addition, Japanese Patent Application Laid-open No. Hei 6-16700 discloses a road surface freezing prevention device using antifreeze. This is to circulate the antifreeze by natural convection to collect geothermal heat to prevent freezing of the road surface, and has a complex structure consisting of a heat exchanger buried in the ground, a heat storage tank or a heat pipe bent along the road surface. In addition, since the system itself needs to be assembled on site at the time of construction, a lot of work time is required and maintenance costs are increased.

The present invention for solving such a problem is to provide a simple device, low construction and maintenance costs, economical road surface frost prevention device using geothermal.

1 is a perspective view showing the configuration of a road surface ice prevention device according to an embodiment of the present invention,

Figure 2 is a cross-sectional view showing the installation state of the road surface ice prevention device shown in FIG.

Figure 3 is a cross-sectional view showing an installation state of the road surface ice prevention device according to another embodiment of the present invention.

♣ Explanation of symbols for main part of drawing ♣

10: heating pipe 12: main body

14: hollow part 16: heat radiation fin

18: heat dissipation part 20: packaging layer

22: strata

In order to achieve the above object, the road surface freezing prevention device using geothermal heat of the present invention includes a main body having a hollow portion vertically embedded in the ground layer of the road and having a heat transfer medium therein, and a heat transfer medium heated through the hollow portion. It is provided with a heat dissipation unit is introduced and radiated heat, characterized in that consisting of a plurality of heat dissipation fins arranged horizontally below the pavement layer, such as concrete and asphalt.

Hereinafter, a road surface freezing prevention apparatus using geothermal heat according to a preferred embodiment of the present invention with reference to the accompanying drawings will be described in detail.

1 is a perspective view showing the configuration of the road surface frost protection device according to an embodiment of the present invention, Figure 2 is a cross-sectional view showing the installation state of the road surface frost protection device shown in FIG.

First, as shown in Figure 1, in the preferred embodiment of the present invention, as an example of the road surface freezing prevention device, the heating pipe 10 of the "b" shape having a plurality of radiating fins 16 are formed radially on the top Illustrated. The heating pipe 10 has a hollow portion formed therein, and the hollow portion is a vacuum tube type in which a heat transfer medium is contained. The heat transfer medium uses a liquid having a high thermal conductivity such as water or alcohol, and a gas such as ammonia or a refrigerant. Can also be used. On one side of each of the heat radiation fins 16, a plurality of projections 16a are formed to increase the heat radiation area.

Here, the radiating fins 16 have a structure in which a plurality of radiating fins 16 are disposed radially on the upper circumferential surface of the main body 12. By arranging the heat dissipation fins 16 in this way, the heat introduced from the main body 12 can be intensively dispersed in the heat of the heat exchange medium to the concrete or asphalt pavement layer 20 above.

2 is a view showing a state in which the heating pipe 10 according to the present invention is installed on the road, a plurality of heating pipe 10 is buried at a suitable interval on the road is expected to freeze. The process of freezing the road surface using the heating pipe 10 according to the present invention with reference to this.

As shown here, the main body 12 constituting the heating pipe 10 is formed of a long cylindrical shape having a long "a" shape extending up and down, the hollow portion 14 containing a heat transfer medium therein. Is formed. The hollow part 14 communicates with the heat radiating part 18 formed inside the heat radiating fin 16 of the upper portion, thereby enabling movement of the heat transfer medium. In the present embodiment, the plurality of heat dissipation fins 16 forming the upper portion of the heating pipe 10 is disposed at a position adjacent to the concrete or asphalt pavement layer 20. Although not shown, it is also possible to embed the heat radiation fin 16 in the concrete or asphalt pavement layer 20 according to the road conditions. In addition, the lower end of the heating pipe 10 is mainly buried in the ground it is preferable to make a cone shape of the pointed shape in order to facilitate the buried work.

In general, in the cold winter, even though the temperature of the atmosphere is low, the temperature of the strata 22 is always maintained at a certain level or higher. Therefore, the heat of the ground layer 22 is transferred to the lower part of the main body 12 which forms the heating pipe 10, so that the heat transfer medium contained in the hollow part 14 of the main body 12 is heated warmly. The heated heat transfer medium is raised by natural convection in the main body 12, as shown by the arrow P, and diffuses into the heat dissipation unit 18 formed on the upper part of the main body 12.

As such, the heat transferred to the heat dissipation unit 18 is transferred to the lower portion of the concrete or asphalt pavement layer 20 through the heat dissipation fins 16, thereby accumulating snow or water on the road surface above the pavement layer 20. Even if there is a freezing phenomenon is prevented.

On the other hand, the heat transfer medium that radiates heat from the heat dissipation unit 18 and descends along the arrow Q returns to the lower part of the main body 12. In this way, the convection inside the main body 12 continues, and the heat dissipation through the heat dissipation fin 16 is continuously performed, thereby allowing the paving layer 20 to be continuously heated, thereby preventing freezing of the road surface.

Next, Figure 3 is a cross-sectional view showing the installation state of the road surface freezing prevention apparatus according to another embodiment of the present invention, in the present embodiment, the heat radiation fin (16 ') has a structure that extends vertically continuously. . As described above, the plurality of heat dissipation fins 16 ′ are continuously arranged at equal intervals vertically along the longitudinal direction of the main body 12, so that a wider area can be continuously heated.

The alternative structure and principle of operation are almost the same as described in FIG. That is, the heat of the ground layer 22 'is transferred to the lower part of the main body 12' which forms the heating pipe 10 ', so that the heat transfer medium contained in the hollow portion 14' of the main body 12 'is heated warmly. do. The heated heat transfer medium is raised by natural convection in the body 12 ', as shown by arrow P', and diffuses into the heat dissipating portion 18 'formed on the top of the body 12'.

As such, the heat transferred to the heat dissipation unit 18 'is transferred to the lower portion of the concrete or asphalt pavement layer 20' through the heat dissipation fins 16 'extending vertically at equal intervals, thereby paving the layer 20 ') This prevents freezing even if snow or water accumulates on the upper road surface.

The heating pipes 10 and 10 'of the present invention having such a configuration do not need to be used in combination with other complicated devices, so that the structure is simple and can be simply installed at low cost.

In a preferred embodiment of the present invention described so far as a road surface anti-freezing device exemplified radially arranged circular heating pipe having a plurality of heat dissipation fins on the top, if the person of ordinary skill in the art It will be understood that various modifications, changes, additions, and the like can be made without departing from the spirit of the invention. For example, it is also possible to configure the heating pipe or the heat radiation fin into a polygonal shape such as a circle or a square to increase the heat transfer efficiency.

According to the present invention described above, the construction and the overall structure is simpler than the conventional apparatus, the maintenance cost is low, and by providing a road surface freezing prevention device using geothermal heat, there is an advantage that can achieve safe driving in winter.

Claims (3)

The body 12 which is buried perpendicular to the ground layer 22 of the road and has a hollow portion 14 through which the heat transfer medium flows, and the heat transfer medium heated through the hollow portion 14 flows in and radiates. In the road surface anti-freezing device having a heat dissipation portion (18, 18 ') arranged horizontally below the pavement layer, such as concrete and asphalt, The heat dissipation unit (18, 18 ') is a ground heat prevention device using geothermal heat, characterized in that consisting of a plurality of heat dissipation fins (16, 16') formed on the surface a plurality of projections (16a) for increasing the heat dissipation area. The method of claim 1, The heat dissipation fin (16) has a shape extending horizontally long and the road surface freezing prevention device using geothermal heat, characterized in that arranged radially on the upper portion. The method of claim 1, The heat dissipation fin (16 ') is a road surface freezing prevention device using geothermal heat, characterized in that extending vertically continuously.