JPH0714402Y2 - Warm air heating device for snow melting - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present application is to provide a warm-air heating device for snow melting having a novel structure.

[0002]

2. Description of the Related Art Heretofore, in this type, the following has been done. Although heating is performed by using electric power, hot water, etc., a pipe having a small diameter (a thin pipe) is piped, and electric power and hot water are used for this.

[0003]

The problems described in the prior art have the following problems. Therefore, a large amount of heat cannot be sent at one time. Also, the heat reaches the end pipes slowly. Further, by using a thin tube, the heat transfer area on the surface of the tube is small, so the heat transfer rate to the surroundings is slow. In snowy areas, snow removal around houses (passages, parking lots) is a great burden. Especially, the labor becomes a problem in the future aging society.

The present application has been made in view of the above problems of the prior art, and an object of the present application is to provide the following. By using the warm air heating device for snow melting of the present application, the ground surface is warmed and snowfall does not melt on the surface of the ground, and snow accumulation does not occur.

[0005]

[Means for Solving the Problems] In order to achieve the above object, the present invention is as follows. That is, in the present application, the excavated portion 1 excavated at a predetermined depth on the desired snow melting ground, the cut gravel 2 laid inside the excavated portion 1 and the urethane laid on the cut gravel 2 Insulation material 3 such as foam board, sand 4 such as river sand laid and spread on the insulation material such as urethane foam board, steel pipe ventilation pipe 5 piped in the sand 4 such as river sand in a meandering state, steel The steel pipe ventilation pipe 5 is a warm air heating device for snow melting, which is composed of an asphalt pavement 6 formed on the upper surface of the pipe ventilation pipe 5 and the like, and the steel pipe ventilation pipe 5 is connected to a warm air boiler 7.

[0006]

EXAMPLES Examples will be described with reference to the drawings. A
Is a warm air heating device for snow melting of the present invention. Reference numeral 1 is an excavation portion excavated at a predetermined depth on the desired snow melting ground. Reference numeral 2 is a cut gravel laid in the excavated portion 1 and compacted. The cut gravel 2 plays a role of ground stabilization and drainage. Reference numeral 3 is a heat insulating material such as a urethane foam plate laid on the cut gravel 2 for preventing underground freezing.

Reference numeral 4 is sand such as river sand laid and leveled on a heat insulating material such as a urethane foam plate. The sand 4 such as river sand absorbs heat quickly and is maintained at a certain temperature. In addition,
Do not use sea sand as it has salt content and damages the pipe. Reference numeral 5 denotes a steel pipe ventilation pipe that is piped in a sand 4 such as river sand in a meandering state. In the figure, 5A is a steel pipe ventilation pipe outlet, and 5B is a steel pipe ventilation pipe exhaust port. The steel pipe ventilation pipe 5 is used because it has a high heat transfer rate and is strong against pressure. In this case, the area around the steel pipe ventilation pipe 5 is filled with sand 4 such as river sand.

Reference numeral 6 is an asphalt pavement formed on the upper surface of the steel pipe ventilation pipe 5 or the like. The asphalt pavement 6 is used because it has high heat absorption and is suitable for road surface maintenance. A hot air boiler 7 is connected to the steel pipe ventilation pipe 5 by a steel pipe ventilation pipe outlet 5A and a steel pipe ventilation pipe exhaust port 5B. 8 is an oil tank.

The dimensions of each part are as follows with reference to FIG. The excavation depth a is about 360 mm. Distance between steel pipes and ventilation pipes in a meandering state is 300 m
It is about m. The thickness c of the cut gravel 2 is about 150 mm. The thickness of the heat insulating material 3 such as urethane foam plate is 30 m
It is about m. The thickness of the asphalt pavement 6 is 30mm
It is a degree. The thickness between the upper surface of the heat insulating material 3 such as a urethane foam plate and the lower surface of the steel pipe ventilation pipe is about 50 mm. The diameter of the steel pipe ventilation pipe is about 100 mm. The thickness of the sand 4 such as river sand is about 150 mm.

The operation is as follows. Hot air boiler 7
Is used to ventilate the inside of the steel pipe ventilation pipe 5 from the steel pipe ventilation pipe outlet 5A and to exhaust it from the steel pipe ventilation pipe exhaust port 5B. By sending warm air into the steel pipe ventilation pipe 5, the steel pipe ventilation pipe 5 is warmed up, and gradually the sand 4 such as river sand and the asphalt pavement 6 enclosing the steel pipe ventilation pipe 5 are heated to thaw the snowfall. I won't.

[0011]

Since the present invention is constructed as described above, it has the following effects. Currently, heating is performed with electricity, hot water, etc., but the features of this application are: Easy to install and inexpensive. 2. The heat transfer to the surface of the earth is fast. That is, the feature of the present invention is that hot air is used instead of the conventional use of electric power and hot water. The advantage of using warm air is that, unlike hot water, hot air is used, so it is possible to use one with a large pipe diameter (thick pipe). Therefore, a large amount of heat can be sent at one time. In addition, since heat reaches the end pipe, heat reaches faster than hot water.
Further, by using a thick tube, the heat transfer area on the surface of the tube is large, so that the heat transfer rate to the surroundings is high. 3. There are few breakdowns and maintenance costs are low.

[Brief description of drawings]

FIG. 1 is a plan view with a part omitted.

FIG. 2 is a side view in which a portion is sectioned.

FIG. 3 is an enlarged sectional view of a main part taken along line XX.

[Explanation of symbols]

 A Hot-air heating device for snow melting 1 Excavation part 2 Cut gravel 3 Insulation material such as urethane foam plate 4 Sand such as river sand 5 Steel pipe ventilation pipe 5A Steel pipe ventilation pipe outlet 5B Steel pipe ventilation pipe exhaust port 6 Asphalt pavement 7 hot air boiler

Claims (1)

[Scope of utility model registration request] 1. An excavation part (1) excavated at a predetermined depth on a desired snow melting ground, a cut gravel (2) laid inside the excavation part (1) and a cut gravel (2). ) Insulating material such as urethane foam plate (3) laid on top, sand such as river sand (4) spread over the insulating material such as urethane foam plate, and meandering in sand (4) such as river sand The steel pipe ventilation pipe (5) and the asphalt pavement (6) formed on the upper surface of the steel pipe ventilation pipe (5) and the like, and the steel pipe ventilation pipe (5) is a hot air boiler (7). ) Is connected to the hot air heating device for snow melting.