JPH0291370A - Roof surface snow melting device at building - Google Patents

Abstract

PURPOSE:To melt snow surely, by forming on the roof surface of a building an introduction space whose upper surface is closed with shelter members, and also, providing a steam supply means supplying steam within the introduction space. CONSTITUTION:When steam is led into a supply pipe passage 5 by starting a boiler, steam jets through the jetting hole of the passage 5, and reaches a ridge side opening portion S1 as it melts accumulated snow W, and enters within an introduction space S. Also, accumulated snow W accumulated on heated shelter plates 4 is melted, and hollows are formed on the upper sides of respective shelter plates. And melted snow accumulation W becomes water, and flows on a roof surface 1 and drops from the eaves via an eaves side opening portion S2.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a snow melting device on the roof of a building, and more particularly, to a device for melting snow on the roof of a building such as a factory or private house and removing it from the roof. It is.

[Prior art 1] Conventionally, this type of snow melting device was developed by the Japanese Patent Publication No. 61-3949.
There is a device described in the @ gazette. As shown in Fig. 11, this snow melting system installs a supply pipe 5 along the eaves of the roof 1 of a building, and a large number of blowholes 5a are installed in the supply pipe 5 toward the line side. They are lined up.

When a large amount of snow has fallen on the roof surface 1, high-temperature steam is introduced into the supply pipe 5 and the steam ejected from the ejection hole 5a melts the snow.

[Problem to be solved by the invention] However, if the amount of snow on the roof surface 1 decreases or
If the slope is small, the steam ejected from the nozzle 5a may escape upwards before melting the snow, as shown by the arrow in FIG. 11, and the snow may not be melted sufficiently.

The object of the present invention is to provide a snow melting device for the roof of a building that can reliably melt and remove snow at any time, regardless of conditions such as the amount of snow that has fallen on the roof and the shape of the roof. It is about providing.

[Means for Solving the Problems] The first invention forms a guidance space on the roof of a building whose top surface is closed with a shielding member, and includes a steam supply means for supplying steam into the guidance space. The gist of this is a snow melting device installed on the roof of a building.

The second invention forms a guidance space on the roof of a building whose upper surface is closed by a shielding member, and provides a steam supply means for supplying steam into the guidance space and above the shielding member. The gist of this paper is a snow melting device for the roof of a building.

A third invention is to arrange a shielding plate on the roof of a building so as to form a guiding space between the roof and the roof, and to supply steam into the guiding space and above the shielding plate. The gist of the present invention is to provide a snow melting device for a roof surface of a building, in which a steam supply means is provided at a position spaced apart from one end of the shielding plate.

[Function] The effect of the first invention is that even if snow falls on the roof surface, a snow-free guiding space is secured on the roof surface by the shielding member. The steam supplied into the space by the steam supply means uniformly heats the shielding member and melts the snow from below. Since the snow is always in contact with the shielding member, heat from the shielding plate is efficiently transferred. Since the steam is guided by the shielding member, it does not escape upward through the snow.

The effects of the second and third inventions are such that even if snow falls on the roof surface, a snow-free guiding space is ensured on the roof surface by the shielding member such as the shielding plate. The steam supplied into the space by the steam supply means heats the shielding member, melts the snow around it, and forms a cavity around it. Although the cavity makes it difficult for heat from the shielding member to be transferred to the snow, the steam supplied into the cavity by the steam supply means directly melts the snow and quickly removes the snow on the roof surface.

Since the steam is guided by the shielding member, it does not escape upward through the snow.

[Example] An example embodying the present invention will be described below with reference to FIGS. 1 to 4.

As shown in FIGS. 1 to 3, the roof surface 1 on which the snow melting device of this embodiment is installed is made of Japanese tiles, and the line side of the roof surface 1,
On the eaves side and in the middle thereof, snow catchers 2 are arranged in a row in a direction perpendicular to the direction of inclination of the roof surface 1. A metal shielding plate 4 as a shielding member having a convexly curved upper surface is disposed on the roof surface 1 so as to extend from the line side to the eaves side, and is held inside the snow stopper 2, respectively. As a result, the spaces formed between each of the shielding plates 4 and the roof tiles are defined as guidance spaces S, and the openings between the line side and the eaves side of the spaces S are defined as line side openings S1 and eave side openings, respectively. It is designated as S2.

A supply pipe line 5 as a steam supply means is installed along the roof surface 1, one end of the pipe line 5 is closed, and the other end is connected to a boiler (not shown) by a pipe. A jet hole 5a is provided through the supply pipe line 5 so as to correspond to each line-side opening S1 of the guide space S, so that steam from the boiler passes through the supply pipe line 5 and is jetted out from each injection hole 5a. It has become. Supply pipe line 5 and the line side opening S1
Since there is a certain distance between the nozzle and the nozzle 5a, and the nozzle 5a opens slightly downward toward the roof surface 1, as shown by the arrow in FIG. The ejected steam is reflected on the roof surface 1, and approximately half of it enters the guide space S from the line side opening S1, and the other half is guided above the shielding plate 4.

Next, the snow melting device configured as described above is used to melt the snow.
The case of melting will be explained with reference to FIGS. 4(a) to (d).

As shown in FIG. 4(a), even if snow accumulates on the roof surface 1, the shielding plate 4 prevents the snow from entering the guiding space S, and the M guiding space S is always hollow.

When the boiler is started and steam is introduced into the supply pipe line 5, the steam is ejected from each of the jet holes 5a and reaches the line side opening S1 while melting the snow W, as shown in FIG. 4(b). , enters the guidance space S.

As shown in FIG. 4(C), since the "a" shielding plate 4 is made of metal, it easily becomes heated by the heat of the steam, and this heat spreads the snow W accumulated on the shielding plate 4. It melts and forms a cavity above each shielding plate 4.Meanwhile, the melted snow W
turns into water, flows down the roof surface 1, passes through the eaves side opening S2, and falls from the eaves.

The formation of the cavity makes it difficult for the heat from the shielding plate 4 to be transferred to the snow, but as shown in FIG. Directly melt the snow W and quickly expand the cavity. Snowfall W
Since the snow is prevented from sliding on the roof surface 1 by the snow stopper 2, most of it is melted on the roof surface 1 and removed. Therefore, the snow W that has slipped from the roof surface 1 to the ground does not remain unmelted and become a hindrance to traffic.

In this way, according to the snow melting device of this embodiment, the snow accumulation W on the roof surface 1 can be removed without any human intervention.

Furthermore, even if the amount of v4gW on the roof surface 1 is small or the slope of the roof surface 1 is small, the steam ejected from the nozzle 5a is guided to the shielding plate 4 and escapes upward through the snow W. Never. Therefore, the snow W can be melted by effectively utilizing the heat of the steam.

Furthermore, as shown in FIG. 4(d), even if the cavity collapses due to the weight of snow W when enlarging the cavity on the shielding plate 4 with steam, the guiding space S is secured by the shielding plate 4. Therefore, a cavity can be quickly formed again by the steam in the space S, and the snow melting operation can be continued.

On the other hand, the above-mentioned guiding space S on the roof surface 1 serves as a heat insulator, so that heat inside the building is not released to the outside in winter, and in summer, the roof surface 1 can be prevented from being burnt by direct sunlight.

The snow melting device of this embodiment forms a cavity above each plate 4 using the heat of the shielding plate 4 heated by steam, and the steam is sent into each cavity to expand the cavity and melt the snow W. Depending on the number and arrangement of the shielding plates 4, the snow W is melted uniformly from the bottom, so that no cavity may be formed in some cases. In this case, since the snowfall W is always in contact with the shielding plate 4,
The snow can be efficiently melted using just the heat of the snow. Therefore, it is not necessary to eject the steam toward the upper side of the shielding plate 4 as in this embodiment, and the direction of the ejection holes 5a may be set so as to eject the steam only into the guide space S.

Furthermore, in the snow melting device of this embodiment, the guiding space S is formed by arranging the elongated shielding plates 4 on the roof surface 1 made of Japanese tiles, but the present invention is not limited to this, and for example, as shown in FIG. As shown, the guiding space S may be formed by mounting a corrugated plate 8 or a folded plate having a corrugated cross section on a flat roof surface 7 to which the tile rods 6 are fixed. Further, as shown in FIG. 6, a flat plate 9 is placed on the tile bar 6.
Alternatively, as shown in FIG. 7, a large number of bent portions 9a projecting downward in a concave shape may be formed on the flat plate 9, and each bent portion 9a may be placed on the roof surface. 7 may be brought into contact with it. In this way, each bent portion 9a can support the flat plate 9, so the weight of the snowfall W can cause the flat plate 9 between the tile rods 6 to
can be prevented from bending downward, and a sufficient guiding space S can be formed. Furthermore, as shown in Figure 8, Section 6.7
An angle 10 may be fixed on the flat plate 9 shown in the figure in a direction perpendicular to the slope of the roof surface 7 to serve as a snow stopper.

Furthermore, although the snow melting device of this actual machining injects steam from the ridge side to the eaves side of the roof surface 1, the injection direction is not limited to this.
It may be sprayed obliquely upward from the eave side to the ridge side, or it may be sprayed in a direction perpendicular to the direction of inclination of the roof surface 1.

On the other hand, the snow melting device of this embodiment has a line side opening S of the guiding space S.
1, a supply pipe 5 was provided at a constant interval so that the steam ejected from the ejection hole 5a of the pipe 5 was guided into the guide space S and above the shielding plate 4. The point is that it is sufficient to supply steam to the inside of the induction space S and its surroundings, so the following configuration may be used. As shown in Figure 9.10,
Lower and upper supply pipes 1 are installed along the ridge on the roof surface 11.
2.13 are installed above and below, and a large number of jet holes 13a are arranged in the upper supply conduit 13 toward the eaves side. Also, roof surface 1
1, there are many metal vibrators 14 along the inclination direction.
The eaves side of each pipe 14 is opened, and the line side is connected to the lower supply section 12.

In the snow melting device configured in this way, first, steam is supplied from the boiler to the lower supply pipe line 12 and each pipe 1
4, and the heat melts the snow W around each vibrator 14 to form a cavity. Next, steam is supplied to the upper supply pipe 13, and the steam is ejected from the spout hole "t3a" into each cavity, expanding the cavity and melting the snow W. In this case, the inside of the pipe 14 Since the steam is guided to the vibrator 14 in the induction space S, the heat can be used effectively without penetrating the snow W and escaping upward.

Moreover, in the snow melting apparatus of the embodiment shown in FIGS. 1 to 4, steam is ejected all at once from the ejection holes 5a of the supply pipe line 5 to reduce the amount of accumulated snow.
However, the timing of ejection from each ejection hole 5a is not limited to this, and for example, steam may be ejected sequentially from several ejection holes 5a at one end of the supply pipe 5.

Even if the capacity of the boiler is not sufficient and there is insufficient space between the steam to blow out the steam from all the blow-off holes 5a all at once, snow melting work can be carried out effectively in this way.

[Effects of the Invention] As detailed above, according to the snow melting device on the roof of a building according to the present invention, the snow melting device on the roof of a building according to the present invention can melt snow at any time, regardless of the conditions such as the gap between snow accumulated on the roof and the shape of the roof. It has the excellent effect of being able to reliably dissolve and remove.

[Brief explanation of drawings]

Figures 1 to 4 show embodiments embodying the present invention; Figure 1 is a sectional view of a roof surface on which a snow melting device is installed; Figure 2 is a perspective view of a building similarly equipped with a snow melting device; The figure is a partially enlarged front view showing the tiles and shielding board seen from the eaves side, Figure 4 (a) -
(d) is an explanatory diagram showing the order of snow melting by the snow melting device,
Fig. 5 is a partial front view showing a guiding space formed using a corrugated plate, Fig. 6 is a partial front view showing a guiding space formed using a flat plate, and Fig. 7 is a partial front view showing a guiding space formed using a flat plate. Fig. 8 is a side view showing the case where an angle is used as a snow stopper, Fig. 9 is a side view of the roof surface where a snow melting device using a pipe is installed, and Fig. 10 is a side view showing the case where an angle is used as a snow stopper. FIG. 11 is a perspective view of the building shown in the figure, and FIG. 11 is a sectional view of the roof surface on which a conventional snow melting device is installed. 1 is a roof surface, 4 is a shielding plate as a shielding member, 5 is a supply pipe as a steam supply means, and S is a guiding space. Patent applicant: Kurado T! ! Kuramado Jōyo, Patent Attorney On 1) Hironobu 13 Figure 5rJA Figure 6 7 Figure 1, Incident Display Patent Application No. 243220 of 1988 Snow Melting Device for Roof Surface of Building 3, Person Making Amendment Relationship to the case: Patent applicant address: 1, 73 Tsurumi-cho, Ogaki City, Gifu Prefecture Address: Name 4, Furabe Address: 2, 73-2 Tsurumi-cho, Ogaki City, Gifu Prefecture Shino Kurado 500 2, Hatazume-cho, Ogaki City, Gifu Prefecture Address 0582 (65) -1810 (齽) 5, Detailed explanation of the invention column 6 of the specification to be amended, Contents of the amendment (1) The description in lines 6 to 10 on page 9 of the specification is as follows: to correct. [However, since the specific gravity of steam is light, if the amount of snow on the roof 1 is small or the slope of the roof 1 is small, the steam ejected from the nozzle 5a will drop as shown by the arrow in Figure 11. They may escape upwards before the snow melts. In addition, since the steam injected from the injection hole 5a creates a spindle-shaped cavity in the snow pile, if the maximum diameter of the cavity exceeds the thickness of the snow pile, the steam will escape upwards as in the case described above. . For this reason, a problem arises in that the snow cannot be sufficiently melted. ” (2) Page 9, lines 6 to 10 of the specification [Therefore,... may be set. ” has been amended as follows. Therefore, it is no longer necessary to blow out the steam toward the upper side of the shielding plate 4 as in this embodiment, and even if the direction of the blowout hole 5a is set so as to blow out the steam only into the induction space S. For example, the roof surface 1 can be covered with a plate-shaped shielding plate 4 to form the guidance space S, and a drain hole can be formed through the eave side of the shielding plate 4 to communicate the inside of the guidance space S with the outside. However, the supply pipe line 5 can also be provided within this induction space S. In this case, the steam injected from the injection hole 5a of the supply pipe line 5 heats the shielding plate 1 and the Snow can be melted by heat. On the other hand, the steam injected into the induction space S is condensed into water by heating the shielding plate 1, and is discharged to the outside of the induction space S from the drain hole. becomes.

Claims (1)

[Claims] 1. A guiding space (S) whose upper surface is closed with a shielding member (4) is formed on the roof surface (1) of the building;
) A snow melting device for the roof surface of a building equipped with a steam supply means (5) for supplying steam into the interior of the building. 2. A guidance space (S) whose top surface is closed with a shielding member (4) is formed on the roof surface (1) of the building;
) and above the shielding member (4). 3. A shielding plate (4) is arranged on the roof surface (1) of the building so as to form a guidance space (S) between the roof surface (1) and the inside of the guidance space (S). A snow melting device for a roof surface of a building, wherein a steam supply means (5) is provided at a position spaced apart from one end of the shielding plate (4) in order to supply steam to the upper side of the shielding plate (4).