JPS609630B2 - Solar heat collection roof structure - Google Patents

Description

[Detailed description of the invention] The present invention relates to a solar heat collecting roof structure.

Conventionally, solar water heaters have been installed on the slope of the roof near the roof ridge, but because they are exposed to the outside, they look unsightly.

On the other hand, the conventional ridge structure is that roof tiles are covered with roofing boards through waterproof roofing, and the ridge is covered with a layer of Kasagi along the length of the roof. It was fixed to the rafters with long nails that penetrated through it, and the ridge wrapping covered the cap and was fixed with nails. As a result, there is almost no space inside the ridge wrapper, making it impossible to install a storage tank in this area.Also, with this structure, strong winds can cause rainwater to enter the cape and cause it to rot, and construction takes a long time. There were drawbacks such as the need for skill due to the use of nails. The present invention eliminates the above-mentioned drawbacks and provides a roof structure in which a heat pipe for collecting solar heat is installed in a roof tile. An embodiment of the present invention will be described below based on the drawings. In Figs. 1 and 2, it has a longitudinal cross section in which a valley-like notch 2a is formed at the base of a chevron-shaped pentagon on the upper surface, spanning both sides of the ridge on the roof board 1,
A plurality of girders 2 which are symmetrical with respect to a vertical plane on the center line of the ridge are placed at intervals in the direction of the ridge so that their top ridgelines are within the vertical plane on the center line of the ridge. The girder 2 is fixed to the roof board 1 by driving nails 8a diagonally inward and downward from the outside of the vertical side surfaces 21, 21 on both lower end sides of the roof. The angle formed by the intersecting bottom surfaces of the valley-shaped notch 2a is set smaller than the apex angle formed by the left and right roof panels 1 and 11 of the roof. On both inclined shoulder surfaces 22, 22 sandwiching the top ridgeline of the spar material 2, there are upper frame materials 3a, 3a, each made of noble material and having a long rectangular cross section.
, 21, side frame members 3b, 3b, each having substantially the same shape as the upper frame member, are successively attached along the ridge length direction and fixed to the spar 2 with nails 8b, 8c. The upper frame member 3a overhangs from the girder 2 downward on both sides of the ridge, and its overhanging outer end is flush with the outer end of the side frame member 3b. These roof boards 1 and frame materials 3
The left and right roofing panels 4 and 4 cover roofing boards 1 and 3b.
Both roofing beams 2 are continuously stretched from above.
Duplicated above.

Tile materials 5 and B are placed on the roofing board 1 and close to the side frame material 3 via the roofing. The upper end of the tile material is fixed with nails 8d. Then, a ridge cover 6 made of a metal plate is attached to cover the upper part of the upper surface of the tile material 5B and the roofings 4, 4 surrounding the frame material 3. In order to cover the tile materials 6, B, the ridge wrapping 6 has a downwardly bent contact piece 61 at the lower end of the leg portion 6a along the slope of the tile material. The corresponding piece 61 and the tile material 5 are made watertight by the caulking material 7. and,
The ridge wrapper 6 is fixed to the spar 2 from the outside of the side with nails 8e via the side frame members 3b. As shown in the third figure, the space of the frame 3 formed between the pieces of wood 2 along the length of the ridge inside the ridge wrapper 6 has a width that is approximately the same as that of the pieces of wood 2 placed in front on the ridge. A water heater storage tank 9 having a horizontal bottom surface is installed.

The outer surface of the hot water storage tank 9 is covered with a heat insulating material, and the hot water storage tank 9 is placed in a saddle frame on the roofing boards 1 on both sides of the gantry. In addition, a heat pipe 32 embedded in the tile B is connected to the hot water storage tank 9 as described below, and a hot water pipe 12 and a water supply pipe 13 are connected to the roofing board 1, the roofing 4, or the ridge wrapping 6, respectively. connected through. Next, tiles B with embedded heat pipes that absorb solar heat are placed on the roof.

FIG. 4 shows a state in which the tiles B are arranged in a staggered arrangement. The tile B is constructed as follows. The heat insulating main body 31 is formed from a heat insulating material such as rock wool or asbestos cement, and has a rectangular flat plate shape that has the strength of a normal roof tile. On the lower surface of the front part of the main body, there is a front positioning step 3 along its front edge.
11 is provided to protrude downward, and a rear positioning step 312 is provided to protrude upward from the upper surface of the rear of the main body at the same height as the step 311 along the rear edge. A plurality (four) of heat pipes 32 are embedded in the main body 31 in parallel along the roof inclination direction.

A portion of their outer circumferential surfaces are exposed along the surface of the main body 31. Moreover, these plurality of tiles are arranged at symmetrical positions with respect to the center line along the roof inclination direction of the tiles. The heating part of the heat pipe is installed at the bottom, and the cooling part is installed at the top. The cooling part of the heat pipe 32 is protruded rearward from the rear end surface of the tile B, and the heat dissipation fin 3
2a is provided, and is injected into the circulation waterway branch pipe 11b via a heat insulating material/sealant R. The branch pipe 11b is provided behind the tile B and below the upper tile along the ridge, and both ends of the branch pipe 11b on the roof side are connected to the circulation waterway main pipe 11a.
connected to.

The main pipe 11a has multiple rows of branch pipes 11b for each of the upper and lower tiles.
are gathered together, and one end thereof is closed in the wound storage tank 9. These wound storage tank 9, main pipe 11a, and branch pipe 11b form a circulation waterway 11 having a forced circulation pump 11c in the middle. Heat pipes are made of good thermal conductors such as copper, aluminum, and iron, and are highly corrosion resistant.

Water, ammonia, etc. are used as a heat medium for the heat pipe. A heat receiving plate 33 is fixed to the main body 31 through an adhesive layer 34 between the heat pipe and the main body 31, and is in contact with the outer peripheral surface of the upper surface of the heat pipe.

The heat receiving plate 33 is made of a material having good thermal conductivity and excellent insect resistance, such as copper, aluminum, colored iron plate, or stainless steel. According to the conventional roofing method, the roof tiles described above are first laid in a plurality of tiles in the lower layer adjacent to each other in a horizontal straight line, as shown in Fig. 4, and then the upper tiles are shifted by 1'2 of the horizontal length. Similarly, they are arranged horizontally in a straight line. At this time, the lower layer tile and the upper layer tile are the front and rear step portions 31 1, 3 of the main body, as shown in FIG.
12 are engaged with each other to determine the position in the roof inclination direction. In the above structure, when the heat pipe 32 receives solar heat during the day, a slight temperature difference occurs between the heating section and the cooling section of the heat pipe 32.

The heating medium condensed at the lower end of the heat pipe 32 due to the heat received by the heating section evaporates and rises, reaching the cooling section at the upper end.
Heat is radiated from the surface of the fin 32a for heat dissipation, thereby warming the water in the circulation waterway branch pipe 11b. Thereby,
The steam in the heat pipe 32 condenses and liquefies again, and returns to the lower end along the roof slope by gravity. Then, the hot water in the branch pipe 11b is transferred to the wound storage tank 9 via the main pipe 11a. In the evening, when solar heat decreases and the roof tiles become cold, and the water temperature becomes lower than the water temperature in the flaw storage tank 9, the pump 11c is automatically stopped (it does not need to be stopped) and the circulating flow is stopped.

At this time, the heat medium in the heat pipe 32 remains in a liquid state at the lower end of the pipe due to gravity, and the hot water storage tank 9
The phenomenon of heat flowing back from the roof to the tiles does not occur. Note that instead of the heat receiving plate 33 of the roof tile, a heat receiving layer filled with a thermally conductive inorganic material formed by bonding metal powder, metal fibers, etc. with an easily fusible metal such as solder may be used.

Furthermore, ``In the above embodiment, two pieces of roofing 4 were used on the left and right sides, but it is of course possible to cover the girders 2 and the frame materials 3a and 3b with one piece of roofing. Even short nails can be firmly fixed to the roof board 1 by driving the nails 8a substantially perpendicularly to the intersecting bottom surfaces of the valley-shaped notches 2a to the extent that the nail heads are buried. Since the materials 3a and 3b are covered by the roofing 4, rainwater will not enter and corrode them.Furthermore, the gap between the ridge cover 6 and the tile material 5 is made watertight by caulking material 7, which further blocks water. Furthermore, the ridge wrapper 6 is formed into a negative body, and the exterior is made beautiful by heat-coating.

As described above, the present invention incorporates a heat pipe into a special roof tile.
Since the water in the circulation waterway is heated by the heat pipe, the series of hot water supply and heat collection equipment is not exposed on the roof and has a good appearance, and hot water can be obtained efficiently and easily. , it also had a great effect on energy conservation.

[Brief explanation of the drawing]

Fig. 1 is a longitudinal sectional view perpendicular to the ridge, showing an embodiment of the present invention, Fig. 2 is a longitudinal sectional view along the ridge, and Fig. 3 is a vertical sectional view taken along m-
m sectional view, Figure 4 is a plan view of the roof, Figure 5 is V in Figure 4.
-V sectional view, FIG. 6 is a sectional view of W- in FIG. 1... Field board, 2... Girder wood, 2a.
... Valley-shaped notch, 3a ... Upper frame material, 3
b... Side frame material, 6... Kawara village, B...
...Special tile material, 31...Insulating body, 32.
... Heat pipe, 33 ... Heat receiving plate, 6 ...
...Wrap the ridge, 9...Wound storage tank, 11...
Circulation waterway, 12...Hot water pipe, 13...
Water pipe. Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6

Claims (1)

[Claims] 1 Heat pipes are arranged in parallel at intervals along the roof inclination direction and are buried in the tile with the heating part at the bottom and the cooling part at the top, and the cooling part of the heat pipe protrudes from the rear end surface of the tile. A solar heat collection roof characterized in that it is immersed in a circulation waterway branch pipe, the branch pipe is connected to a circulation waterway main pipe having one end opened in a hot water storage tank, and a circulation waterway is formed by the hot water storage tank, the branch pipe and the main pipe. structure.