JPH11256540A - Road surface anti-freezing and snow melting method utilizing sewage pipeline - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the cost for anti-freezing and improve the anti-freezing efficiency by providing a radiating fin reaching right under the road surface on the outer surface of a sewage force-feed pipeline to transmit the sewage residual heat right under the road surface. SOLUTION: A radiating fin 3 made of metal having good thermal conductivity is provided on the outer surface 2A of a sewage force-feed pipeline 2 buried along the road surface 1, and the tip of the fin 3 is made reach right under the road surface. Secondly, sewage flowing through the pipeline 2 has often water temperature of about 15 deg.C even in a cold district in winter, and sewage flows in the full state through the pipeline 2. Accordingly, the residual heat of the sewage is transmitted from the pipe wall of the pipeline 2 to the fin 3, and radiated to the ground bed right under the road surface, so that heat of melting is supplied to frost and snow coverage to be melted. Thus, heat energy can be utilized very effectively so that the cost for antifreezing of the road surface and snow-melting can be remarkably reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for preventing freezing of a road surface using a sewer pipe and a method for melting snow, and more particularly to a method for preventing freezing of a road surface using residual heat energy of sewage and a method for melting snow.

[0002]

2. Description of the Related Art As a method of preventing freezing of a road surface in a cold region and melting snow, a method of removing snow or spraying an anti-freezing agent using a work vehicle, a method of constantly spraying hot water or the like on a road surface to thaw, and a method of reducing nighttime electric power. Conventionally, a method of burying a heat source such as a used heat storage heater under a road surface and melting the heat source has been generally adopted.

[0003]

However, of the above methods, the method using a work vehicle requires a worker, and requires a snow removing device and an anti-freezing agent, resulting in a huge cost. Was.

[0004] Furthermore, since the antifreezing agent melts in the melted water and flows, it may contaminate the surrounding soil, and may pose a problem on the natural environment such that it may affect the harvest of agricultural products.

[0005] In the case of hot water spraying, a hot water pipe must be provided, and since water is constantly sprayed, there is a drawback that water pools are easily formed in the surroundings and walking may be difficult. Melting by a heater requires that the heater be buried under the road surface only for prevention of freezing and melting of snow, resulting in a problem that the equipment cost is considerably increased, the power consumption is large, and the economic cost is considerably increased.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and has been made to implement a low-cost and efficient road surface freezing prevention and snow melting method.

[0007]

In order to achieve this object, the present invention utilizes the residual heat of the sewage pumping pipe to radiate heat to the outer surface of the sewage pumping pipe buried along the road surface to reach just below the road surface. The fins are provided integrally, and the residual heat of the sewage is transferred to the area immediately below the road surface through the heat radiation fins to prevent the road surface from freezing and melt the snow.

[0008] With this configuration, it is possible to effectively use the heat of the sewage pressure feed pipe, and it is possible to prevent the road surface from freezing and to melt snow without particularly preparing a heat source. In addition, in the present invention, the sewer pipe serving as a heat source is used as the sewage pressure feed pipe in the case of a natural flow sewer pipe, in which the pipe material is often made of concrete, and the sewage is also formed at the inner bottom of the pipe. It is difficult to use it as a heat source because of the fact that it flows along the road and is often buried deep from the road surface.On the other hand, ducts made of ductile cast iron are usually used for the sewage pipeline and the burial depth is also underground. This is because it is shallow, about 1.2m, and the sewage flowing inside flows in a fully filled state in the pipe, so that it can be effectively used as a heat source.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
An embodiment of the snow melting method will be described. FIG. 1 is a front sectional view of an embodiment of the present invention, and FIG. 2 is a side sectional view of the embodiment.

According to the present invention, a method for preventing freezing of a road surface using a sewage pipe and a method for melting snow are provided in such a manner that radiation fins 3 extending directly below the road surface are integrally provided on an outer surface 2A of a sewage pressure feed pipe 2 buried along the road surface 1. It is configured.

In the above description, the radiation fins 3 are made of a metal having good heat conductivity, and for example, metals such as copper alloy, aluminum light alloy, cast iron and steel are preferably used. As means for integrally providing the radiating fins 3 with the sewage pipe 2, the radiating fins 3 can be directly welded to the outer surface 2 </ b> A of the sewage pipe, as shown in FIG.
As shown in FIG. 2, a radiation fin 3 is integrally attached to a half-tubular saddle 3A in a front view by welding or the like.
A may be attached by fixing A on the sewer pipe 2 using the bands 3B... 3B.

The radiating fins 3 may be provided along the entire length of the pipe line 2 below the road surface, or may be provided at important points as shown in FIG. Next, the principle of the road surface freezing prevention and snow melting method of the present invention will be described.

[0013] Sewer pipes are often buried under public roads. The sewage flowing through the sewage pipeline often has a water temperature of about 15 ° C. even in winter in a cold region.

As described above, the sewage flows in the sewage pressure pipeline 2 in a full state. Accordingly, the residual heat of the sewage is transmitted from the pipe wall of the pumping line 2 to the radiating fins 3, and is eventually radiated to the ground immediately below the road surface to supply heat of melting ice and snow on the road surface.

Further, since the sewage having residual heat described above is sequentially pumped by a pump, the sewage side is less affected by heat radiation, and specifically, there is no sewage pipe freezing due to excessive heat radiation.

Therefore, it is possible to prevent the road surface from freezing and to melt snow without particularly burying a heat source such as an electric heater.

[0017]

As described above, according to the method of the present invention, the residual heat of the sewage flowing in the sewer pipe is transmitted to the road surface to prevent freezing of the road surface and to melt snow. Energy can be used very effectively, and there is an effect that extremely economical road surface freezing prevention and snow melting can be performed.

[Brief description of the drawings]

FIG. 1 is a front sectional view of an embodiment of the present invention.

FIG. 2 is a side view of a main part of one embodiment of the present invention.

FIG. 3 is a side view of a main part of one embodiment of the invention.

[Description of Signs] 1 Road surface 2 Sewage pressure pipeline 2A Outer surface 3 Radiation fin 3A Half-tubular saddle 3B Band

Claims (1)

[Claims] 1. A radiating fin extending directly below the road surface is integrally provided on an outer surface of a sewage pressure feed pipe buried along a road surface, and the residual heat of sewage is transferred directly below the road surface via the radiating fin. Road surface freezing prevention using sewage pipeline,
Snow melting method.