JPH0150744B2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention is a thermal circulation snow melting system, and more specifically, the heat retained in the air after indoor heating is used to melt snow on the roof, so that heating and snow melting can be performed in the same system. Regarding the thermal circulation snow melting system.

Conventionally, various devices such as mechanical snow removal, water sprinkling, and heating have been developed to melt snow from roofs.
It was treated as a separate field from heating. In other words, the idea for heating loads is heat storage and insulation, and for snow melting loads, heat radiation is the main focus, so both are treated independently, resulting in wasteful energy consumption.

Therefore, the purpose of the present invention is to solve the above-mentioned conventional problems, minimize the load on the heat exchanger by using the air after heating, and provide a thermal circulation snow melting system that can perform heating and snow melting in one. The goal is to provide a system.

That is, the thermal circulation snow melting system according to the present invention incorporates a heat exchanger, and covers the air duct provided at the top of the roof along the ridge direction of the roof with an air gap between the air ducts and the outside air. A hood whose surface is exposed and is heated by heat from the air duct, and warm air heated by a heat exchanger in the air duct is supplied into the room, and the room is heated from an opening of the air duct. It consists of a blower that sucks in and circulates the used air.

Hereinafter, one embodiment of the thermal circulation snow melting system according to the present invention will be described with reference to FIGS. 1 to 5.

FIG. 1 shows the overall appearance of a house equipped with a thermal circulation snow melting system according to the present invention. In the figure, reference numeral 1 denotes a roof, and a steel plate hood 2 having a cross-sectional shape of palms is fixed to the top of the roof 1. In this embodiment, the apex angle of the hood 2 is 60 degrees, which is much larger than the normal roof slope, so it has the appearance of a two-tiered roof with a varying slope. Inside this hood 2, a heat exchange duct (air duct) 3 made of a copper plate with an equilateral cross-sectional shape is provided as shown in FIG. 2, and between the inner surface of the hood 2 and the outer surface of the heat exchange duct 3. A heat radiation space 4 for snow melting is formed. Note that this figure shows the case where this system is installed on an existing roof surface, so the installation fastener A is used, but in the case of a newly built house, it can be directly attached to the main body without using a fastener.

Furthermore, as shown in FIGS. 2 and 3, a frame 5 is provided inside the heat exchange duct 3 between the inlet 3a and the outlet 3b, and copper pipes 6 are mounted on this frame 5 at equal intervals. It is supported so that it steers in parallel. The starting end and the terminal end of the copper tube 6 are connected to a heating device 7 consisting of a heater, a pump, etc., and a heat carrying fluid is heated by the heating device 7 and circulated through the copper tube 6. In the present invention, a fluid containing ethylene glycol as a main ingredient and additives is used as the heat transfer fluid.

As shown in FIGS. 4 and 5, the warm air heated in the heat exchange tact 3 passes through the air supply duct 9 from the outlet 3b, is energized by the air supply fan 10, and enters the room from the indoor air outlet 8. Supplied. The warm air after heating the room is guided from the indoor air suction port 11 through the return air duct 12 to the heat radiation space 4 for melting snow in the hood 2, and radiates heat from the surface of the hood 2 to melt the snow. The indoor air outlet 8 and the inlet 11 are positioned diagonally on the ceiling surface of each room.

As is clear from the above description, according to the present invention, a hood is provided at the top of the roof to allow warm air after indoor heating to rise into the hood, and a copper plate heat exchange duct incorporating a heat exchanger is installed in this hood. Since it is installed inside the hood, the room is heated by warm air heated by the heat exchanger, and the amount of heat radiated from the copper plate heat exchange duct is combined with the amount of heat held in the hot air after heating the room, so there is no wastage of energy. Snow melting can be performed efficiently on the roof. Furthermore, since a special heat transfer fluid is used in the heat exchanger, highly efficient heat exchange can be performed.

[Brief explanation of drawings]

FIG. 1 is a perspective view of a house in which a thermal circulation snow melting system according to the present invention is implemented. FIG. 2 is a sectional view of the main part. FIG. 3 is a side sectional view of FIG. 2. Fourth
FIG. 5 and FIG. 5 are explanatory diagrams showing the operating state of the entire system. 2...Hood, 3...Heat exchange duct (air duct),
6...Copper pipe, 8...Blowout port, 11...Suction port.

Claims (1)

[Scope of Claims] 1. A heat exchanger is incorporated, and the air duct is installed at the top of the roof along the ridge direction of the roof, and the air duct is covered with an air gap so that the surface is not exposed to the outside air. and a hood that is heated by heat from the air duct, and a heat exchanger in the air duct that supplies warm air into the room and air that is used for heating the room from the opening of the air duct. A thermal circulation snow melting system consisting of a blower that sucks in and circulates snow. 2. The thermal circulation snow melting system according to claim 1, wherein the air passage is made of a copper plate, and the hood is made of an iron plate. 3. The thermal circulation snow melting system according to claim 1, wherein the air passage has a triangular cross-sectional shape. 4. The thermal circulation snow melting system according to claim 1, wherein the heat transfer fluid used in the heat exchanger is a fluid containing ethylene glycol as a main ingredient and additives added thereto.