Air discharge pipe structure for melting snow on road surface, road surface material for melting snow, and system for melting snow on road surface

Abstract

Provided are: an air discharge pipe structure for melting snow on a road surface, the air discharge pipe structure being configured so that the air discharge pipe structure can more evenly discharge snow melting air into an area underneath the road surface on which the snow to be melted is present than conventional structures to prevent the uneven melting of the snow, so that the air discharge pipe structure can be built more easily, and so that the air discharge pipe structure can be built in a reduced time and at reduced cost; a road surface material for melting snow; and a system for melting snow on a road surface. An air discharge pipe structure for melting snow on a road surface is provided with: perforated pipes (7, 7, ...) which have air ejection holes (6) formed therein and which are laid in a predetermined area underneath the road surface (5) on which the snow to be melted is present; a pair of connection pipes (8, 8) for air flow, connecting the opposite ends of each of the perforated pipes (7, 7, ...) in a pneumatically communicable manner; and an air supply pipe (9) which connects one end of each of the connection pipes (8, 8) for air flow in a pneumatically communicable manner and which is provided with an air supply opening (11) for supplying air. The other end (81) of each of the pair of connection pipes (8, 8) for air flow is connected to each other in a closed state or is connected to each other by an end air-flow pipe (10) in a pneumatically communicable manner.

Description

technical field [0001] The present invention relates to a road surface snow-melting exhaust pipe structure, a snow-melting road surface member, and a road surface snow-melting system that heat the road surface by discharging snow-melting air below the snow-melting target road surface to melt snow. Background technique [0002] Conventionally, various inventions have been proposed regarding a road surface snow melting system, which discharges snow-melting air using waste heat or the like below a road surface to be snow-melted, and heats the road surface with the heat of the air to melt snow. [0003] For example, in Japanese Patent Application Laid-Open No. 2005-36622, a warm-air snow-melting device is proposed, which shields both ends of a cylindrical structure with openings formed on its peripheral surface by a soil shield to form a convective space. The heat supply pipe and the low temperature pipe equipped with an exhaust fan are inserted into the convection space in the ...

AI Technical Summary

Problems solved by technology

However, in each of the inventions described in the aforementioned Patent Document 1 to Patent Document 3, they do not focus on solving the problem of uneven snowmelt on the road surface, and neither describe nor suggest it.

For example, in Patent Document 1, there is the following problem: in the vicinity of the opening end of the heat supply pipe that feeds air into the cylindrical structure, and in the vicinity of the soil retaining plate on the back side of the cylindrical structure, the air discharged from the opening air volume makes a big difference

Therefore, the road surface to be melted cannot be heated uniformly, resulting in uneven melting of snow and low melting efficiency.

[0012] In addition, in the invention described in Patent Document 1, in order to form the convective space, it is necessary to dig deep under the road surface, making construction difficult, and there is also a problem of increasing construction time and construction cost.

[0013] In addition, the invention described in Patent Document 2 also supplies air from the air blower to the exhaust pipe in one direction, and does not particularly consider the unevenness of snowmelt. uneven snowmelt

[0014] Furthermore, in Patent Document 3, there is no description or hint about the arrangement structure etc. in consideration of uneven snowmelt with respect to the piping provided with the discharge holes.

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