JPH0420107Y2 - - Google Patents

Description

[Detailed explanation of the invention] [Industrial field of application] The present invention has a double-layered roof and blows warm air into the space between the lower roof member and the upper roof member to melt roof snow. This relates to a hot air type snow melting roof device that melts snow.

[Conventional technology]

Natural heat exhaust snow melting roof systems that have been developed in recent years and utilize the natural exhaust heat of buildings are economical because they do not require fuel costs such as oil or gas, but on the other hand, they suffer from severe winters due to the lack of thermal energy. It has the disadvantage that it cannot effectively remove snow during periods of heavy snowfall.

For this reason, recently it was developed about 15 years ago and
No. 49-31216, a hot air snow melting roof device that blows warm air into a double-layered roof to melt snow, is being reviewed.

[The problem that the idea aims to solve]

The present invention is an improvement of such a hot air type snow melting roof device, and an object thereof is to provide an economical hot air type snow melting roof device that has excellent thermal efficiency and can uniformly melt snow.

[Means to solve problems]

The gist of the present invention will be explained with reference to the accompanying drawings.

A hot air snow melting system that melts roof snow by sending hot air from the eaves into the space of a double structure roof having a roof where snow is distributed between a lower roof member a and an upper roof member b via a space. In a roofing system, a hot air passage 2 is formed by partitioning plate materials with partition ridges 1, through which hot air flows from the eaves to the ridge side, and the flow direction of the hot air is varied in the hot air passage 2 to increase the flow velocity of the hot air. Hot air passage forming member 5 forming a hot air speed suppressing member 3 that reduces the speed of hot air
Snow is distributed in the space between the lower roof member a and the upper roof member b so that the hot air passage 2 is perpendicular to the ridge, and the entire width of the eaves tip of the hot air passage 2 is heated. The present invention relates to a hot air type snow melting roof device characterized by being provided with a hot air outlet 12 for supplying wind.

[Effect]

Warm air is supplied through warm air vents 1 formed across the entire width of the eaves.
2 into the hot air passage 2, the hot air flows in a fixed place, that is, the hot air passage 2, and the inflow direction is varied by the hot air velocity suppressing member 3, and the hot air flows through the hot air passage 2 toward the ridge side at a low speed. Therefore, the snow on the upper roof member b is combed uniformly and effectively.

〔Example〕

2 shows a case where the hot air passage forming members 5 shown in FIG. 4 are arranged between the rafters 4, and FIG. 3 shows the hot air passage forming members 5 shown in FIG.
The diagram shows the case in which it is installed.

The hot air passage forming member 5 shown in FIG. 4 has partition protrusions 1 integrally formed on the left and right sides of a plate material.
The hot air passage forming member 5 shown in FIG. 5 is made by integrally forming four partition protrusions 1 on a plate material. In both types, a hot air passage 2 is formed between the partition protrusions 1, and the hot air passages 2 are formed between the partition protrusions 1. The figure shows a case in which a hot air velocity suppressing member 3 is integrally provided in the passageway 2 in a planar or shaped shape, with one end attached to the inner surface of the partition protrusion 1 and the other end being a free end.

The flow direction of the hot air is changed by the hot air passage forming member 5 shown in FIGS. 4 and 5, and the flow velocity is reduced.

FIG. 6 shows a case where the hot air passage forming member 5 shown in FIG. 8 is arranged between the rafters 4, and FIG. 7 shows a case where the hot air passage forming member 5 shown in FIG. 9 is arranged on the rafters 4. The diagram shows the case where

The hot air passage forming member 5 shown in FIGS. 8 and 9 has a rectangular shaped warm air velocity which is substantially orthogonal to the partition ridges 1 in a hot air passage 2 formed between the partition ridges 1 integrally formed on the plate material. The figure shows a case where a suppressing member 3 is installed and a ventilation hole 6 is formed between the lower surface of the hot air velocity suppressing member 3 and the hot air passage 2 (FIG. 8 shows a case where the hot air passage forming member 5 is installed). ).

With the hot air passage forming member 5 shown in FIGS. 8 and 9, the flow direction of the hot air is changed, and the flow velocity is reduced, similarly to the hot air passage forming member 5 shown in FIGS. 4 and 5. That is,
A portion of the hot air that hits the hot air velocity suppressing member 3 is decelerated and advances through the ventilation holes 6, and a portion of the hot air advances in the opposite direction and is decelerated.

The hot air velocity suppressing member 3 is preferably made of synthetic resin material (rigid foamed urethane) or rubber material (synthetic rubber), etc., which have excellent heat insulation properties, and asphalt felt, aluminum craft, plywood, etc. are used on the front and back surfaces to further improve heat insulation properties. You can also use the one that is pasted.

The upper roof member b is preferably made of a copper material, a galvanized iron plate, an aluminum plate, etc., and the roof structure is preferably a flat roof, a long tile roof, a folded roof, etc.

By using a heat insulating material for the lower roof member a, the hot air is not cooled from the outside, so the temperature of the hot air does not drop, so there is no wastage of thermal energy.
Economical.

The drawing also shows that the front and back sides of the eaves are surrounded by an eaves cover 8 connected to the upper roof member b, the tip of the eaves cover 8 is in contact with the exterior wall material 9, and the hot air outlet is placed on the top of the exterior wall material 9. 10 are formed at regular intervals,
The indoor exhaust heat is sent out from this warm air outlet 10,
The figure shows a case in which hot air is passed through the inside of the eaves cover 8 and sent into the hot air passage 2 from the eaves.

Further, an obstruction plate 11 is vertically installed under the eaves so that warm air can be uniformly sent out.

Although a heat pump is the most desirable method for supplying hot air, heating devices such as fan heaters and stoves may also be used, or central heating may also be used.

In the figure, numeral 7 is a field board, and 13 is a drainage gutter.

[Effect of idea]

Since the present invention is configured as described above, when indoor exhaust heat and warm air are sent from the entire width of the eave tip into the space between the lower roof member and the upper roof member, the surface of the upper roof member is heated and the upper roof member is heated. Accumulated snow on the roof members is melted and removed.

In this case, simply forming a space does not determine where the hot air will pass, so the entire roof will not be evenly heated, and snow cannot be removed uniformly.

Moreover, since the hot air passes through the space quickly, the upper roof member is not heated properly, which reduces the snow-blowing ability and wastes thermal energy, which is uneconomical.

In this regard, in the present invention, a hot air passage forming member, which is partitioned at regular intervals by partition protrusions to form hot air passages, is disposed in the space.The hot air flows through the hot air passage, and the place where it passes is determined. Therefore, the upper roof member is heated uniformly.

Moreover, since the hot air velocity suppressing member is provided in the hot air passage, the hot air passes through the hot air velocity suppressing member while colliding with the hot air velocity suppressing member, so that the flow direction of the hot air can be varied.
The speed of the hot air is suppressed and the hot air passes through the hot air passage more slowly, which in turn warms the upper roof members better, and can be expected to have snow-melting power.

It should be noted that if a hot air circulation system is adopted in which the hot air is heated again after use, it will be more effective and economical, and will have excellent practical effects.

[Brief explanation of the drawing]

Figure 1 is a slope view of a part of this device, Figures 2 and 3 are front sectional views of the roof, Figures 4 and 5 are slope views of the hot air passage forming member, and Figures 6 and 7 are roof side views of another example. The sectional view and FIGS. 8 and 9 are oblique views of another example of a hot air passage forming member. a... Lower roof member, b... Upper roof member, 1...
Partition protrusion, 2... Hot air passage, 3... Hot air speed suppressing member, 5... Hot air passage forming member, 12... Hot air outlet.

Claims (1)

[Scope of utility model registration request] A hot air snow melting system that melts roof snow by sending hot air from the eaves into the space of a double structure roof having a roof where snow is distributed between a lower roof member a and an upper roof member b via a space. In a roofing system, a hot air passage 2 is formed by partitioning plate materials with partition ridges 1, through which hot air flows from the eaves to the ridge side, and the flow direction of the hot air is varied in the hot air passage 2 to increase the flow velocity of the hot air. Hot air passage forming member 5 forming a hot air speed suppressing member 3 that reduces the speed of hot air
Snow is distributed in the space between the lower roof member a and the upper roof member b so that the hot air passage 2 is perpendicular to the ridge, and the entire width of the eaves tip of the hot air passage 2 is heated. A hot air type snow melting roof device characterized by being provided with a hot air outlet 12 for supplying wind.