JPS592826B2 - solar water heater - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a low-floor solar water heater that can be used as a roofing material such as roof tiles and can supply a large amount of hot water (in addition, the construction cost is significant).

A conventional solar water heater consists of a hot water storage tank and a heat collecting part.
This is designed to be installed on the roof.

However, such solar water heaters have an unsightly appearance, are easily exposed to wind, and are therefore at a high risk of damage, and the amount of hot water that can be supplied is limited, making it impossible to supply hot water continuously for long periods of time. It also had various other problems.

The present invention has been made in view of the above circumstances, and aims to provide a solar water heater that can be used as a roofing material, has an outstanding aesthetic appearance, can supply a large amount of hot water, and has a low construction cost.

An example of a solar water heater according to the present invention will be explained below based on the drawings.

In FIG. 1, reference numeral 1 denotes a solar water heater that also serves as a roofing material for a building 2 such as a house.

As shown in FIGS. 2 and 3, this water heater 1 is made up of a large number of water heater forming members 5 each having a receiving portion 4 and a heat collecting channel 6.

This water heater forming material 5 has a heat collecting passageway 6 which is closed at both ends by bending the lower part of a long stainless steel tube metal plate, applying a force meter, and welding. The receiving portion 4 supporting the heat collecting passage 6 of the material 5 is curved in a concentric manner with the heat collecting passage 6.

When constructing this, first, a reinforcing material 8 such as wood having a substantially triangular cross section is fixed in a corrugated manner on the roofing board 7 of the house, and a vinyl sheet 9 is further laid on the top surface for heat insulation.

Next, the heat collection channel 6 is placed on the lowermost end, and the upper part 4 is positioned in the valley 10 between the reinforcing members 8 and fixed with nails 11. The heat collection channel 6 of the next water heater forming material 5 is placed on top, and the receiving part 4 of the water heater forming material 5 is fixed with nails 11 in the same manner as described above, and each hot water The vessel forming material 5 is laid from the lower end of the shedding board 7 toward the top.

In addition to the nails 11, various methods may be used for fixing each of the water heater forming members 5.

The heat collection channels 6 of each water heater forming member 5 are connected in series through a water pipe 12 and a ventilation pipe 13.

In this case, the water pipes 12 communicate the lower portions of the heat collecting channels 6 with each other, and the ventilation pipes 13 communicate the upper portions of the heat collecting channels 6 with each other.

The heat collection channel 6 at the top has an air vent pipe 1 that opens to the outside.
4, and a heat collection passageway 6 between the top and bottom ends of this
At the same time, draw-out pipes 15 and 16 for supplying water or hot water are installed, and a hot water filling pipe 17 for snowfall is installed at the heat collection passageway 6 located approximately in the middle.

When the outside temperature is low, such as during winter, it is advisable to place a translucent vinyl sheet 18 over the water heater 1 as shown in FIG.

The extraction pipe 15 has a hot water supply pipe 20 equipped with a hot water tap 19.
Further, a water supply 22 is connected via a water supply tap 21, and the filling pipe 17 is connected to the water supply 22 via a filling tap 32, and the main draw-out pipe 150 is connected to the boiler 23. .

On the other hand, the extraction pipe 16 includes not only the boiler 23 but also
A water supply 25 having a faucet 24, a hot water pipe 27 having a hot water tap 26, and a drain pipe 29 having a drain plug 28 are connected.

Note that the filling pipe 17 and the boiler 23 do not necessarily have to be used (and may be omitted, especially in regions where the temperature is warm and the amount of heat received is large).

Therefore, when using a large amount of hot water continuously, only the water supply tap 24 and the hot water supply valve 19 are opened, and water is supplied from the water supply 25 through the water supply tap 24 and the extraction pipe 16 into the heat collection channel 6 at the lowest end. Water is supplied to the heat collecting passageway 6 located above through the water pipe 12 using the water pressure.

At the time of this water supply, the air in each heat collection passageway 6 is also sequentially discharged to the outside from the air vent pipe 14 via the ventilation pipe 13 and the heat collection passageway 6.

As the water flows from the lowermost end to the uppermost heat collecting channel 6, it receives solar heat and becomes hot water, and is supplied from the extraction pipe 15 through the hot water tap 19 and the hot water pipe 20 for use.

During such continuous use, if the roof area is wide, hot water with a fairly high temperature can be obtained, but when the temperature is low or when hot water with an even higher temperature is required, the hot water tap 19
is closed, hot water from the drawer pipe 15 is introduced into the boiler 23, heated to a predetermined temperature, and then hot water is supplied via the hot water tap 32 and the hot water pipe 30.

Next, when the amount of hot water to be used is small, the ζ water tap 21 is opened and water is supplied into the water heater 1 through the extraction pipe 15.

After the water supply faucet 21 is closed and the water is heated by solar heat, the hot water supply faucet 26 is opened to supply a predetermined amount of hot water to a common source such as a bath.

In this case as well, if the temperature of the hot water is low, you may first boil it in the boiler 23 and then supply the hot water, or you can open the water tap 31 separately and supply water from the tap 33 to the boiler 23, boil the water, and then use the hot water tap 32. The hot water may also be supplied to the hot water from the water heater 1 via the hot water supply pipe 30.

In addition, during the snowfall season, first open the water tap 31 to supply water to the boiler 23, fill the boiling hot water from the middle to the bottom of the water heater 1 via the filling tap 32 and filling pipe 17, and then drain the water. By discharging to the outside through the plug 28, drain pipe 29, etc., the lower layer of snow at the bottom of the water heater 1 is melted and snow falls.

Next, the snow on the top of the water heater 1 is removed by filling the top of the water heater 1 with hot water from the boiler 23 through the draw-out pipe 15 and discharging it to the outside through the drain plug 28, drain pipe 29, etc.

In this case, water that is not boiled may be used.

In this way, if you use a two-stage method to remove snow on the water heater 1 from the bottom first and then from the top, the water heater 1 will be affected by the weight of the careless snow when you remove snow from the top step. It is possible to prevent damage to the ground floor boards 7 and to make snow removal more effective.

If the vinyl sheet 18 is stretched over the water heater 1 at the end of its life to prevent the cold wind from drastically reducing the solar heat receiving effect, it is possible to obtain a suitable amount of hot water even at the end of its life.

If there is a risk of freezing, the drain plug 28 is opened and the water in the water heater 1 is drained through the drain pipe 29 to prevent damage to the water heater 1 due to freezing.

As described above, according to the solar water heater according to the present invention, it is possible to not only supply the required amount of hot water at the right time, but also to supply a large amount of hot water continuously for a long period of time, which makes it extremely convenient to use. It can be used commonly as a roofing material, and unlike the conventional method of installing it on top of roof tiles, it has an outstanding aesthetic appearance and is low in construction cost.

In addition, when it snows, it can be used to remove snow by passing warm water or water through it to melt the lower layer of snow, and since it can be constructed robustly as a roofing material, there is no risk of damage from large kites.

In other words, the receiver and the heat collection channel can be formed by simply bending a single plate, so it is easy to process and can be manufactured with a low floor.
In addition, it can be laid on the roof by simply overlapping the adjacent receiving parts of each water heater forming material and the heat collection channel, and it can also be used as roof tiles, which is very aesthetically pleasing. Furthermore, since each heat collection channel is connected like a single channel, hot water can be boiled without having to be circulated as in the conventional method, and there are no additional facilities for this purpose, especially water storage. There is no need for tanks or pumps, and there are ventilation pipes and air vent pipes, and the top, middle, and bottom heat collection channels are equipped with lead-out pipes, making it possible to reduce the amount of hot water that needs to be boiled. It is extremely convenient as it can be freely selected and can be used as a water supply or hot water outlet depending on the usage situation. , the snow can be removed from the lower part of the roof first, and then the snow can be removed from the upper part of the roof, making it possible to remove the sacred mountain smoothly and without damaging the roof. It is extremely convenient as maintenance and inspection are easy.

Furthermore, in the summer, when used in buildings such as livestock sheds and factories, the interior is very cool and comfortable because solar heat is exchanged with a water heater, making it particularly suitable for raising livestock.

[Brief explanation of the drawing]

The drawings show an embodiment of the solar water heater according to the present invention. Figure 1 is a perspective view showing an example installed in a house, Figure 2 is a plan view of the water heater, and Figure 3 shows the main components of the water heater. Partial sectional view, 4th
The figure is a piping system diagram of the water heater. DESCRIPTION OF SYMBOLS 1... Solar water heater, 2... Building, 4... Receiving part, 5... Water heater forming material, 6... Heat collection channel, 1...
- Field board, 8... Reinforcement bone is material, 9... Vinyl sheet, 11... Nail, 12... Water pipe, 13... Ventilation pipe, 14... Air vent pipe, 15 .16...drawer pipe, 1T...molten metal filling pipe, 23...boiler.

Claims (1)

[Claims] 1 Consisting of a large number of water heater forming materials, each water heater forming material has one side of the plate bent into a tubular shape, and a heat collecting passageway with both tubular ends closed, and the other side of the plate forming the heat collecting passageway. The receiver is curved to the same curvature as the water channel, and each of the heat collection channels is arranged perpendicularly to the inclination direction of the roof, and the heat collecting channel and the receiver of the adjacent water heater forming material are connected to each other in a direction perpendicular to the slope direction of the roof. Layer each water heater forming material on the roof, and sequentially connect each heat collection channel with a water pipe and then a ventilation pipe to make a single water channel, and then Air vent pipes are provided to discharge internal air to the heat collection channels, and each of the heat collection channels located on the top tier, the bottom tier, and between the top and bottom tiers on the roof, A solar water heater characterized in that each of the solar water heaters is equipped with a lead-out pipe for timely water supply, hot water supply, and hot water extraction.