JPH0241243Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial field of application This invention relates to a snow melting panel for melting snow accumulated on a roof, and in particular to a snow melting panel that is unitized to be attached to the roof of an existing house.

Conventional Technology It is well known that large amounts of snow in cold regions have a major impact on social life. For example, snow accumulated on roofs can cause houses to collapse.
When the amount of snow reaches a certain level, it is necessary to remove the snow, which increases the economic and physical burden associated with this. Conventionally, in order to solve this problem, electric snow melting equipment that melts snow by energizing a planar heating element installed on the roof to generate heat, and hot water pipes installed on the existing roof. At the same time, a new roof is constructed to cover the hot water pipes, and a hot water circulation type snow melting device has been devised that melts the heat of the hot water that flows into the hot water pipes from the snow that has accumulated on the new roof. Conventionally, it has also been considered to change the structure of the house itself, to guide indoor heat to the back of the roof by natural convection, and to melt snow using the so-called domestic waste heat, without using any special equipment.

Problems that the invention aims to solve: However, although electric snow melting equipment is easy to supply and control energy, it has a high risk of electrical leakage because it is placed directly in the natural environment, and it is difficult to use. Because the unit cost of energy is high,
There was a problem with high running costs.

On the other hand, hot water circulation type snow melting equipment involves the construction of a new roof, which requires large-scale construction work and increases equipment costs.In addition, the temperature of the hot water decreases due to heat being taken away by the snow. As the temperature gradually decreases and the temperature reaches the downstream side, the snow melting ability gradually decreases in the direction of flow of hot water, creating a problem in which uniform snow melting cannot be achieved.

Furthermore, with the above-mentioned methods that utilize domestic waste heat, the snow melting capacity is often insufficient, and the structure of the house is unique, so it is not only difficult to apply it to existing houses. However, there was a problem in that the equipment cost was high, and in particular, it was not effective in melting snow at the eaves because heat could not be supplied to the eaves.

Also, if snow can be effectively melted from houses, a large amount of snow melt water will be generated, but in areas with heavy snowfall, roofs often do not have gutters, and even if gutters are installed, they do not function effectively. As snowmelt water flows down from the eaves, this can cause icicles to form. Therefore, when melting snow from roofs, it is desirable to take precautions to prevent icicles.

This invention was made against the background of the above-mentioned circumstances, and the purpose is to provide a snow melting panel for roofs that can melt snow on roofs and effectively prevent the formation of icicles.

Means for Solving the Problems According to this invention, the above object is to sandwich the heat insulating material disposed on the roof surface and the heat pipe disposed on the upper surface between metal plates, and to sandwich one end of the heat pipe. The projecting end of the heat pipe is curved in a direction approaching the roof surface, and a high-temperature fluid pipe is connected to the edge of the metal plate for flowing high-temperature fluid to the tip of the projecting end. This is achieved by arranging the mounting so that it is almost parallel to the .

Function The snow melting panel of this invention is used by installing it on the roof surface so that the high temperature fluid pipe is located on the eaves side. If a high-temperature fluid such as hot water or high-temperature waste gas is flowed through the high-temperature fluid pipe in this state, the protruding end of the heat pipe from the metal plate becomes a heating part, and the part sandwiched between the metal plates becomes a heating part. The heat pipe carries the heat of the high-temperature fluid to the entire roof surface, resulting in snow melting. Snowmelt water generated by melting snow flows along the roof surface toward the eaves, and the high-temperature fluid pipe is attached to the protruding end of the heat pipe that curves in the direction approaching the roof surface, so that it approaches or comes into contact with the roof surface on the eaves side. As a result, the snowmelt water receives heat from the high-temperature fluid pipes at the eaves and is warmed, so the snowmelt water does not freeze into icicles.

Example Next, an example of this invention will be described.

Figures 1 and 2 show the snow melting panel 1 of this invention.
These figures show an example, and as shown in these figures, the snow melting panel 1 includes a heat insulating material 2 and two heat pipes 3.
are sandwiched and fixed between metal plates of an upper plate 4 and a lower plate 5. That is, the heat insulating material 2 is a rectangular flat plate made of glass wool, expanded polystyrene, or the like, and two heat pipes 3 are arranged on the upper surface of the heat pipe 3 at a constant interval along the longitudinal direction. The upper plate 4 and the lower plate 5 are made of a metal plate such as a galvanized steel plate or a galvanized steel plate, and the upper plate 4 has a substantially semicircular shape that wraps and fixes the heat pipe 3. A protrusion 6 in cross section is formed. Further, on the lower plate 5, a pair of protrusions 7 serving as legs for supporting the heat pipe 3 are provided.
They are formed along the longitudinal direction of the lower plate 5 at substantially the same spacing as the mutual spacing. These upper plate 4 and lower plate 5 sandwich the heat insulating material 2 and heat pipe 3 in close contact with them, and
It is integrated by joining the left and right edges of each by folding. The edge-folded portion serves as a flange 8.

Further, end plates (not shown) having a U-shaped cross section are attached to both ends of the upper plate 4 and the lower plate 5 in the longitudinal direction, so that the heat insulating material 2 is connected to the upper plate 4 and the lower plate 5. sealed between.

As is well known, the heat pipe 3 substantially encloses only a condensable fluid and is provided with a capillary pressure internally as necessary, so that the condensable fluid transports heat as its latent heat. One end of this heat pipe 3 is connected to the upper plate 4.
and protrudes from one end side in the longitudinal direction of the lower plate 5, and its protruding end is curved downward according to the thickness of the heat insulating material 2 and the height of the protrusion 7. A hot fluid tube 9 is attached that is oriented in a direction parallel to the edge of the metal plate. Therefore, the hot fluid pipe 9 is located approximately on the same plane as the lower surface of the metal plate. This high-temperature fluid pipe 9 is for giving the heat of the high-temperature fluid flowing inside it to the heat pipe 3, and the connection structure between this high-temperature fluid pipe 9 and the heat pipe 3 is the same as that of the heat pipe 3. A configuration in which a jacket is attached to the outer periphery of the high-temperature fluid pipe 9 and the heat pipe 3 is communicated with the jacket, or a configuration in which the end of the heat pipe 3 is simply inserted into the inside of the high-temperature fluid pipe 9 can be adopted. .

The installation state of the snow melting panel 1 described above is as shown in FIG. Install it between the tile rods so that they are aligned. In that case, since the ridges 7 formed on the lower plate 5 support the snow melting panel 1, a gap is formed between the roof surface 11 and the snow melting panel 1. In this state, the snow melting panel 1 is fixed to the roof.

If a high-temperature fluid such as hot water, steam, or high-temperature exhaust gas is allowed to flow inside the high-temperature fluid pipe 9 during snowfall with the installation as described above, the portion of the heat pipe 3 that is in contact with the high-temperature fluid pipe 9 will become a heating section. At the same time, the part sandwiched between the metal plates is cooled by the snow and becomes a heat radiating part. That is, the condensable fluid in the heat pipe 3 receives heat from the high-temperature fluid in the heating section and evaporates, the vapor gives heat to the snow in the heat radiation section and condenses, and the liquefied condensable fluid returns to the heating section again. do. Therefore, the heat possessed by the high-temperature fluid is carried by the heat pipe 3 and applied to the snow, and as a result, the snow is melted. In that case,
Due to its characteristics, the entire heat pipe 3 has a uniform temperature, so snow melting is performed uniformly in the axial direction of the heat pipe 3, and the presence of the heat insulating material 2 below the heat pipe 3 allows heat to be used for snow melting. It can be used effectively. Further, the snow melting water flows toward the eaves through the upper surface of the upper plate 4 and the gap between the snow melting panel 1 and the roof surface 11, and the high-temperature fluid pipe 9 is located at the eaves side in a state where it is almost in contact with the roof surface. The melting snow water receives heat from the high-temperature fluid pipe 9 and is warmed just before it falls from the eaves. As a result, the temperature of the melted snow water falling from the eaves becomes higher, which effectively prevents the melted snow water from freezing and turning into icicles. Furthermore, since the gap is formed sufficiently wide by the protrusion 7, it is possible to prevent snowmelt water, dirt, etc. from accumulating in the gap, and as a result, damage such as corrosion to the roof surface 11 can be reduced.

Effects of the invention As is clear from the above explanation, the snow melting panel of this invention can melt snow using the heat of the high-temperature fluid pipe, and at the same time allows the snow melting water generated by snow melting to fall from the eaves. Since it can be heated immediately before using the heat from the high-temperature fluid pipe, it is possible to effectively prevent melted snow water from freezing and forming icicles. Furthermore, according to this invention, since heat is supplied to the snow through the heat pipe, uniform snow melting can be achieved.Furthermore, since a heat insulating material is placed below the heat pipe, the high temperature fluid pipe can be heated. The heat supplied through the snow can be effectively used for snow melting, improving thermal efficiency.

[Brief explanation of the drawing]

Fig. 1 is a partially omitted perspective view showing the snow melting panel of this invention, Fig. 2 is an enlarged cross-sectional view taken along the - line in Fig. 1, and Fig. 3 is a schematic side view showing the installed state of the snow melting panel. be. 1...Snow melting panel, 2...Insulating material, 3...Heat pipe, 4...Upper plate, 5...Lower plate, 7...Protrusion, 9...High temperature fluid pipe, 10...Eaves, 11... …
roof surface.

Claims (1)

[Scope of utility model registration request] A heat insulating material placed on the roof surface and a heat pipe placed on the top surface are sandwiched between metal plates, one end of the heat pipe is made to protrude from the metal plate, and the protruding end of the heat pipe is placed on the roof. A snow-melting panel for a roof, characterized in that it is curved in a direction approaching a surface, and furthermore, a high-temperature fluid pipe for flowing high-temperature fluid is attached to the tip of the protruding end so as to be substantially parallel to the edge of the metal plate.