JPH0552065A - Snow melting device for roof face of building - Google Patents

Abstract

PURPOSE:To provide a snow melting device for the roof faces of a building having excellent thermal efficiency, capable of quickly melting snow, and easy to operate. CONSTITUTION:Many branch pipes 8 of a steam pipe are arranged over the whole roof faces 1a, 1b of a building to be extended in the direction connecting the ridge and the eaves, and many steam blowout ports 13 opened to the roof faces 1a, 1b side or opened along the roof faces 1a, 1b are provided on the branch pipes 8. The roof faces 1a, 1b are constituted of roof tiles 9, the branch pipes 8 are arranged along the one side section L1 of the valley side of the roof tiles 9, and the steam blowout ports 13 may be opened toward the other side section L2 of the ridge side of the roof tiles 9. The steam blowout ports 13 may be provided at positions corresponding to the roof tiles 9.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a snow-melting device for a roof surface for melting and removing snow accumulated on the roof surface of a building such as a roof of a private house or a roof of a factory.

[0002]

2. Description of the Related Art Conventionally, the following apparatus by the applicant of the present application is known as a device for melting snow on the roof surface of a building (Japanese Patent Laid-Open No. 2-91370). That is, FIG.
As shown in 0, the upper and lower supply pipelines 22 and 23 are vertically arranged along the ridge of the roof surface 21 of the building, and the upper supply pipeline 22 has a large number of ejection holes toward the eaves. 24 are arranged in a row. In addition, a large number of metal pipes 25 are provided on the roof surface 21 along the direction of inclination thereof.
The eaves side is open and the ridge side is connected to the lower supply pipeline 23.

First, steam is supplied to the lower supply pipe line 23 to send the steam into the pipes 25, and the heat of the steam melts the snow around the pipes 25 to form a cavity in the accumulated snow. Form. Next, steam is supplied to the upper supply pipe line 22 and steam is ejected from the ejection holes 24 into the respective cavities to expand the cavities and melt the snow.

[0004]

However, in the above-mentioned prior art, snow melting must be performed by two-step operation. That is, in the first stage, steam is sent into the pipes 25, and the heat of the steam melts the snow around each pipe 25 to form a cavity. At this time, snow is melted by the heat transmitted from the pipe 25, so it takes time to form the cavity. Then, in the second stage, the upper supply line 22 is inserted into the cavity.
The steam is jetted from the spout hole 24 of the No. 2 to expand the cavity and melt the snow.

However, it is difficult to blow steam from the jet holes 24 of the upper supply conduit 22 into the entire cavity formed from the ridge to the eaves, and the steam blown from the jet holes 24 escapes above the snow cover. Occurs, and the heat of steam cannot be used effectively. As described above, the conventional technique has a problem in that the snow on the roof surface 21 cannot be quickly and efficiently melted and the two-step operation is troublesome.

The present invention has been made in order to solve the above-mentioned problems, and its purpose is to have excellent thermal efficiency, to quickly melt snow, and to melt snow on a roof surface of a building which is easy to operate. To provide a device.

[0007]

In order to achieve the above object, according to the first aspect of the invention, a large number of steam pipes are provided over the entire roof surface of a building so as to extend in the direction connecting the ridge and the eaves. Along with the arrangement, the steam pipe intersects with the direction of extension of the steam pipe and opens on the roof surface side, or on the roof surface of a building with a large number of steam outlets opened along the roof surface. Its main point is a snow melting device.

In a second invention, in the first invention, the roof surface is constituted by a roof tile, the steam pipe is arranged along one side of the roof tile on the valley side, and the outlet is provided. The gist is a snow melting device for the roof surface of a building that opens to the other side of the roof tile on the mountain side.

In a third aspect of the invention, the gist of the second aspect of the invention is a snow melting device for a roof surface of a building in which the air outlet is provided at a position corresponding to each roof tile.

[0010]

In the first aspect of the invention, a large number of steam pipes are arranged on the roof surface over the entire roof surface so as to extend in the direction connecting the ridge and the eaves, and the steam piping is opened toward the roof surface side. Or, a large number of steam outlets that are open along the roof surface are provided. Therefore, the steam blown from the steam outlet directly melts the snow accumulated on it, or raises the temperature of the roof surface to indirectly melt the snow on the roof surface. In this way, the heat of the steam blown out from the steam outlet is effectively used, so the thermal efficiency is good and the snow can be quickly melted by the latent heat of the steam.

In the second invention, the roof surface is made of roof tile, the steam pipe is arranged along one side of the roof tile on the valley side, and the steam outlet is on the mountain side of the roof tile. Since it is open to the other side, steam from the steam outlet is blown out to the other side of the roof tile on the mountain side, and one side of the roof tile on the valley side and the adjacent roof overlapping it. There is no risk of steam entering the gaps between the roof tiles. The steam directly melts the snow on the roof surface and heats the roof tiles to indirectly melt the snow on the roof tiles, thereby efficiently melting the snow.

According to the third aspect of the invention, since the steam outlet is provided at a position corresponding to each roof tile, the snow on each roof tile can be surely thawed. Therefore, the snow on the roof surface melts almost uniformly over the entire roof surface.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment embodying the present invention will be described below with reference to FIGS. As shown in Figs. 1 and 2, a pair of steam is formed along the direction of the ridge (left-right direction in Fig. 2) in the ridge portion of the roof surface 1a made of Japanese roof tiles facing north and the roof surface 1b facing south. The main pipe 2 is laid. On the other hand, a steam supply pipe 5 is attached and fixed to a side wall 3 of the house by a fitting 4, and an upper end portion thereof is connected to an end portion of the steam main pipe 2 by an elbow 6. The other end of the steam supply pipe 5 is connected to a boiler (not shown) as a steam supply source. A valve 7 is attached to the lower portion of the steam supply pipe 5, and the amount of steam supplied from the boiler can be adjusted by rotating the valve 7.

A large number of branch pipes 8 as steam pipes are provided on the roof surfaces 1a and 1b along one side portion (right side in FIG. 2) L ₁ of each roof tile 9 on the valley side (from the ridge to the eaves side (see FIG. 2)). 2), and the upper ends thereof are connected to the steam mains 2. The branch pipe 8 has a cylindrical shape with a diameter of about 10 to 20 mm and is made of copper having good heat conductivity. As shown in FIG. 4, the branch pipe 8 is attached and fixed to the roof tile 9 by winding a copper wire 11 attached to the roof nail 9 of the roof tile 9. On the eaves side of the roof surfaces 1a and 1b, a snow stopper 1 for preventing the snow accumulated on the roof surfaces from falling at once.
2 are lined up.

As shown in FIG. 3, a roof tile 9 is attached to the branch pipe 8.
A steam outlet 13 is provided toward the other side portion L ₂ on the mountain side, that is, in the left lateral direction in the drawing. One steam outlet 13 is provided at a position corresponding to each roof tile 9. Therefore, the snow on each roof tile 9 can be directly melted and each roof tile 9 can be efficiently heated. The diameter of these steam outlets 13 is 1-2 mm. The steam blown out from the steam outlet 13 blows out from one side portion L ₁ on the valley side of the roof tile 9 toward the other side L ₂ on the mountain side of the roof tile 9 along the upper surface of the roof tile 9, The roof tile 9 is prevented from being blown between one side portion L ₁ on the valley side and the other side portion L _{2 on} the mountain side of the roof tile 9 that overlaps the roof side tile ₁ .

As shown in FIG. 5, a drain discharge port 14 having a diameter of 1 to 2 mm is opened at the lower end of the branch pipe 8 so that the drain accumulated in this part is discharged downward. The operation and effect of the snow melting apparatus configured as above will be described.

When there is snow on the roof surfaces 1a, 1b, the valve 7 attached to the steam supply pipe 5 is pivotally operated to adjust the valve opening to a predetermined amount, so that the steam supply pipe 5 is removed from the boiler. After that, a constant amount of steam is supplied to the steam main pipe 2. At this time, when the amount of snow on the roof surface 1a facing the north side is larger than that on the roof surface 1b facing the south side, the opening degree of the valve 7 for inducing steam to the roof surface 1a on the north side is increased to increase the amount of snow. The opening of the valve 7 that guides steam to the roof surface 1b is reduced. Alternatively, the openings of both valves 7 may be the same, and the opening time of the valves 7 may be adjusted so that the former is longer than the latter. This steam flows from the steam supply pipe 5 to the branch pipe 8 via the steam main pipe 2. Then, the steam that has entered the branch pipe 8 is blown out from each steam outlet 13.

As shown in FIG. 6, when the roof tile 9 is covered with snow 15, steam is blown from the steam outlet 13. Then, as shown in FIG. 7, this steam flows along the roof tile 9 to the other side portion L ₂ . At this time, the snow 15 accumulated on it is directly melted by the heat of the steam, and the roof tile 9 is heated. When the roof tile 9 is heated, the radiant heat melts the snow 15 on the roof tile 9.
In addition, the branch pipe 8 extending along one side L ₁ of the roof tile 9
The radiant heat of the snow melts the snow 15 around it. Therefore,
The snow accumulated on the roof surfaces 1a and 1b can be almost uniformly melted on the entire roof surfaces 1a and 1b.

The branch pipe 8 is located between the roof tile 9 and the accumulated snow 15, and the heat of the steam blown from the steam outlet 13 is sandwiched between the snow 15 and the roof surfaces 1a and 1b. Since there is no escape, the snow 15 can be directly melted or the snow 15 can be melted through the roof tile 9, so that the snow 15 can be efficiently melted. Therefore, unlike the conventional case, there is no possibility that the heat of the steam will be blown out onto the snow and the heat will be lost. Moreover, the latent heat of vaporization (vaporization heat) of water vapor is 539 cal /
g is high, that is, when the water vapor is changed to water, that much heat is released and used for snow melting, so the snow 15 can be melted very efficiently.

As described above, the heat of the steam blown out from the steam outlet 13 is effectively utilized in both the upper and lower directions, so that the thermal efficiency is high and the snow 15 can be quickly thawed by the latent heat of the steam. You can

Further, as in the prior art, steam is sent into the pipe in the first stage, and the heat of the steam melts the snow around each pipe to form a cavity. In the second stage, the upper supply pipe is inserted into this cavity. There is no need to perform snow melting by the two-step operation of blowing steam from the jet holes of the road to melt the snow, and therefore the operation becomes easy. Further, since it is not necessary to provide the upper supply pipe line, the device can be simplified accordingly. The branch pipes 8 are arranged in order from the ridge to the eaves along one side L ₁ of the roof tile 9 which is slightly lower on the valley side.
There is little danger of spoiling the aesthetics of.

The present invention is not limited to the above embodiments, but may be configured as follows, for example, without departing from the spirit of the invention. (1) The steam outlet 13 of the branch pipe 8 may be provided so as to open downward or obliquely downward, or may be provided at a plurality of locations, for example, laterally and downwardly. Further, the steam outlet 13 may not be right next to the steam outlet 13 and may be slightly open toward the ridge or the eaves. Furthermore, it is not necessary to correspond to one roof tile 9, and one roof tile 9 may be provided for two roof tiles 9. (2) The position at which the branch pipe 8 is laid does not have to be one side portion on the valley side of each roof tile 9, and may be provided near the center of the roof tile 9, as shown in FIG. 8, for example. In this case, steam outlet 1
Open 3 downward. Then, since the steam blown out from the steam outlet 13 hits the roof tile 9, the roof tile 9 is heated and the steam flows to the left and right to melt the snow. (3) The laying position of the steam main pipe 2 does not have to be at the position of the ridge, and may be at any position above or below, or at the center.

[0023]

As described in detail above, according to the first aspect of the present invention, there are excellent effects that thermal efficiency is excellent, snow can be quickly melted, and operation is easy.

According to the second invention, in addition to the effect of the first invention, steam enters the gap between one side of the roof tile on the valley side and the mountain portion of the adjacent roof tile overlapping therewith. The effect is that there is no fear.

Further, according to the third invention, in addition to the effect of the second invention, the snow on each roof tile can be surely melted, and the snow on the roof surface is almost entirely covered. The effect is that it can be solved uniformly.

[Brief description of drawings]

FIG. 1 is a perspective view showing a roof surface and an outer wall according to an embodiment of the present invention.

FIG. 2 is a partial perspective view showing the roof surface of the same.

FIG. 3 is a cross-sectional view showing a state in which a branch pipe is laid on a roof tile.

FIG. 4 is a perspective view showing a state where a branch pipe is attached to a roof tile.

FIG. 5 is a perspective view showing a lower end portion of a branch pipe.

FIG. 6 is a cross-sectional view showing a state in which snow is accumulated on the roof surface.

FIG. 7 is a cross-sectional view showing a state in which steam is blown out from the outlet of the branch pipe.

FIG. 8 is a sectional view showing another example of the present invention.

FIG. 9 is a schematic partial side view showing a conventional snow melting device for a roof surface.

FIG. 10 is a schematic perspective view showing a conventional snow melting device for a roof surface.

[Explanation of symbols]

1a ... a roof surface facing north, 1b ... a roof surface facing south, 8
... branch pipe as steam piping, 9 ... roof tiles, 13 ... steam outlet, one side of L ₁ ... valley, L ₂ ... the other side of the mountain side.

Claims (3)

[Claims] 1. A large number of steam pipes (8) are provided on the roof surface (1a, 1b) of a building so as to extend in the direction connecting the building and the eaves over the roof surface (1a, 1b). , The roof surface (1a, 1b) on the steam pipe (8)
A snow-melting device for a roof surface in a building, which is provided with a large number of steam outlets (13) which are open to the side or along the roof surfaces (1a, 1b). 2. The roof surface (1a, 1b) is composed of a roof tile (9), and the steam pipe (8) is arranged along one side (L ₁ ) of a valley side of the roof tile (9). In addition, the steam outlet (13) is installed on the other side (L side) of the roof tile (9) on the mountain side.
The snow melting device for a roof surface of a building according to claim 1, wherein the snow melting device is opened toward ₂ ). 3. The snow melting device for a roof surface of a building according to claim 2, wherein the steam outlet (13) is provided at a position corresponding to each roof tile (9).