JPH04339978A - Roof snow thawing and hot water supplying equipment - Google Patents

Abstract

PURPOSE:To supply heat media to a cloths dryer and a room heater to reduce an equipment cost and also increase the running efficiency of the apparatus, by connecting a solar energy collector common to a snow-thawing of a roof collecting solar energy to a boiler for heater and a heat accumulator. CONSTITUTION:A solar energy collector A common to snow-thawing of a roof, having a heat collecting tube 2 passing heat media, is arranged on a roof R. In this time, an aluminum conductive sheet is placed over the heat collecting tube. One end of the heat collecting tube 2 is connected for inflow of heating water media and the other end is jointed to respective collection joints for flowing out. Next, water is conducted in a boiler B for heater to heat the heat media in the pipe and discharged. And preheat tap water conducted from the heat collector A to a heat accumulator C is heated by a heated water boiler F arranged therealong. Next, The boiler B for heating is actuated in winter and the heating media is heated to supply it from the main stream way to the thawing way a cloths dryer D, a room heater E, etc. And in other seasons, a pump 43 is actuated through a thermal sensor S and a relay U from the heat collector A to heat and supply city water within the heat accumulator C.

Description

[Detailed description of the invention]

0001

[Industrial Application Field] The present invention can conveniently and selectively melt snow on the roof, remove snow, and heat the room, supply hot water, etc., improve the living environment, and improve the operation of the equipment. This invention relates to a roof snow melting heating device that can significantly improve efficiency.

0002

2. Description of the Related Art Generally, in areas with heavy snowfall, it is necessary to frequently remove snow that has accumulated on roofs in order to prevent damage to houses. However, such snow removal work is hard work and highly dangerous, so in recent years, some snow melting devices have been used that melt snow on roofs and automatically remove snow. In addition, such a conventional snow melting device is generally formed by laying a panel-shaped heating element that circulates hot water heated by a boiler or the like over the entire roof surface.

0003

[Problems to be Solved by the Invention] However, as described above, such a snow melting device requires a large area for the heating element, and therefore the equipment cost is high. Moreover, its use was limited to the snowy season in winter, resulting in a short operating time and extremely poor functional effect of the device relative to the total cost.

[0004] The present invention is based on selectively connecting a solar heat collector for roof snow melting to a heating boiler and a heat storage tank via a switching valve, thereby reducing equipment costs and for drying clothes in addition to snow melting. The object of the present invention is to provide a roof snow melting heating device that can be provided with multiple functions such as heating, hot water supply, etc., can be used effectively throughout the year, and can solve the above-mentioned problems.

[0005]

[Means for Solving the Problems] In order to achieve the above object, the roof snow melting heating device of the present invention has a heat collection pipe, is disposed on the roof, and collects solar heat into a heating medium passing through the heat collection pipe. A roof snow melting solar heat collector capable of heating and melting snow using a heat medium passing through a heat collecting pipe is selectively connected to a heating boiler and a heat storage tank via a switching valve, and is connected to a clothes dryer and a heating device. A heat medium for the heating boiler or heat storage tank can be supplied.

[0006]

[Operation] In the device constructed as described above, a solar heat collector equipped with a heat collection pipe and used for roof snow melting and placed on the roof is connected to the heating boiler and the heat storage tank via a switching valve.

[0007] Therefore, when a solar heat collector for roof snow melting is connected to a heating boiler, the heating medium heated by the heating boiler passes through the heat collecting pipes, thereby heating the roof and exhibiting a snow melting effect. sell. Moreover, in such a case, when the heating medium heated by the heating boiler is supplied to the clothes dryer and the heating device, indoor heating and clothes drying can be selectively and freely performed.

On the other hand, when a solar heat collector for roof snow melting is connected to a heat storage tank, the heat medium passing through the heat collection pipe collects solar heat and heats the heat storage tank. This allows constant hot water supply, etc.

[0009] In this way, in winter, snow melting, heating, and drying can be performed independently or simultaneously using the heating boiler as a heat source. In the summer and intermediate seasons, solar heat can be used as a heat source and stored in a heat storage tank, making it possible to constantly supply hot water via the heat storage tank, and also perform heating and drying as required. In this way, the equipment can be used effectively throughout the year, increasing operating efficiency and improving the living environment. In addition, since a solar heat collector for roof snow melting is commonly used, increases in equipment costs for hot water supply, space heating, etc. can be suppressed, and by utilizing solar heat, operating costs can be reduced and economic efficiency can be greatly improved.

0010

[Embodiment] An embodiment of the present invention will be described below as a house H shown in FIG.
An example of a case where the system is adopted will be explained based on the drawings.

In FIG. 2, a roof snow melting heat supply device 1 includes a roof snow melting solar heat collector A having a heat collecting pipe 2 through which a heat medium passes and is arranged on the roof R, and a heating boiler B and a heat storage tank C. In this example, the heating medium of the heating boiler B is connected to the clothes dryer D and the heater E so that the heat medium of the heating boiler B can be supplied thereto.

In this example, the house H is a two-story house having a hipped roof R, and the roof R has a trapezoidal first roof piece R1 that slopes downward on both sides of the ridge a. , R1 and
It is provided with triangular second roof pieces R2, R2 that slope downward from both ends of the ridge edge a toward the gable eaves, and one of the first roof pieces R1 is arranged toward the south side. Further, in this example, the house H has a sub-roof Q for the entrance eaves attached below the second roof piece R2 in the form of an eave, and the roof Q
, R is provided with a solar heat collector A that also serves as a roof snow melter.

[0013] Also, as shown in FIG. 1, the roof snow melting solar heat collector A is a solar heat collector A disposed on the first roof piece R1.
Heat collector A2 and sub-roof Q arranged on the first and second roof pieces R2
and a heat collector A3 arranged in the heat collector A3. In this example, the roof snow melting solar heat collector A includes a roof board 3 for forming a roof,
By adopting a new structure between the roofing material 5 and the roofing material 5, the appearance of the roofs Q and R can be maintained, damage to the roofing material 5 etc. caused by the installation can be prevented, and the snow melting effect can be improved. It's increasing. Note that the heat collectors A1, A2,
A3 have substantially the same structure, so if required, the heat collector A1 will be explained below as a representative.

That is, as shown in FIG. 3, the heat collector A1 is
It has a heat collecting pipe 2 disposed in a meandering groove 4 formed in a shedding board 3, and a roofing material 5 is supported using a holding material 6 disposed on the heat collecting pipe 2.

The shedding board 3 is a flat plate material for a roof base, and its upper surface has upper and lower crosspieces 11 and 12 along the ridge edge, eaves edge, and side edge of the shedding board 3, respectively. The crosspieces and the crosspieces 14 extending parallel to each other at the slope of the roof with a gap d1 between the upper and lower crosspieces 11 and 12 are nailed to each other with a waterproof sheet 15 interposed therebetween.

Furthermore, the upper and lower ends of the inner crosspiece 14 are aligned with the upper and lower crosspieces 11 and 12 with a gap d2 in between, and in this example, the meandering groove 4 is formed by the gaps d1 and d2. is formed over almost the entire surface of the sheathing board 3, while heat collecting pipes 2 are arranged within the meandering groove 4. In addition, the roof board 3 is, for example, a main building material,
It can be constructed as an integrally transportable roof panel body by combining with barrel wood in advance, or the meandering groove 4 may be formed directly on the shedding board 3 by carving the top surface of the shedding board 3.

The heat collecting pipe 2 is made of a metal pipe that is relatively thin and has excellent heat conduction, and in this example, as shown in FIGS. It is piped into the meandering groove 4 via a lower sheet 19 made of aluminum tape, and the crosspiece 1 is connected across the heat collecting pipe 2.
Upper sheet 2 consisting of aluminum tape pasted between 4 upper surfaces
Fixed by 0. Further, both ends of the heat collecting pipe 2 extend into the attic through insertion holes 16 and 17 provided in the gap d2. In this example, the upper surface of the roof board 3 is divided into a plurality of small areas Y parallel to each other, and independent heat collecting pipes 2 are disposed in each small area Y to improve the uniformity of the snow melting effect. One end of the heat collecting pipe 2 is connected to a collective joint 21 for inflowing a heat medium, such as water, and each other end is connected to a collective joint 22 for outflow.

In this example, a heat conductive sheet 7 is laid on the sheathing board 3 to cover the entire upper surface of the sheathing board 3 along with the heat collecting pipe 2. On the heat collecting pipe 2, a sheet for supporting the roofing material 5 is laid. A holding material 6 is disposed with a heat conductive sheet 7 interposed therebetween.

The heat conductive sheet 7 is made of a thin aluminum sheet having a thickness of, for example, about 0.1 mm, and has excellent heat conductivity and waterproof function. Can transfer heat. In this example,
Folded portion 19A of the sheet 19 that receives the lower surface of the heat collecting tube 2
further increases the heat transfer coefficient by further contacting with the heat conductive sheet 7.

As shown in FIGS. 7 and 8, the holding material 6 includes a band-shaped metal piece 6A extending along the upper surface of the heat collecting pipe 2 at the slope of the roof, and a silicon plate placed on the metal piece 6A. The upper surface of the elastic piece 6B is formed into a cross-sectional surface that matches the shape of the lower surface of the roofing material 5, for example. The roofing material 5 is fixed efficiently and firmly without damaging the heat collecting pipe 2 by nailing both sides of the roofing material 5 across the retaining material 6 to the sheathing board 3, and also prevents pressure contact with the elastic piece 6B. As a result, the heat transfer coefficient between the heat collecting pipe 2 and the roofing material 5 can be greatly improved.

[0021] In this way, the roof snow melting solar heat collector A arranged on the roofs Q and R is connected to the heating boiler B and the heat storage tank C.
Conducts with.

As shown in FIG. 1, the heating boiler B is a known boiler having a pipe 30 through which the heat medium passes and a heater 31 that heats the heat medium in the pipe 30 using, for example, oil, gas, electricity, or the like. The boiler includes a main outlet passage 33 at one end of the piping 30 through which the heated heating medium flows out via the pump 32.
However, a main return flow path 34 for return is connected to the other end. In this example, an auxiliary boiler B1 having substantially the same configuration as the heating boiler B is installed in parallel. Further, in the main outlet flow path 33, in this example, branch outflow flow paths 35 for snow melting are connected to the heat collector A1b on the north side and the collective joints 21 of the heat collectors A2 and A3, respectively, through an on/off valve 37. At the same time, the main return flow path 34 is connected to a snow melting branch return flow path 36 that leads to each of the collective joints 22 of the heat collectors A1b, A2, and A3. In addition, a branch outflow channel 39 is provided at the collective joint 21 of the heat collector A1a on the south side.
is connected to the main outlet flow path 33 via the switching valve V1, while the branch return flow path 40 of the collective joint 22 of the heat collector A1a is similarly connected to the main return flow path 34 via the changeover valve V2. As the input cutoff valve 37, a heat-sensitive on/off valve is used, which senses the temperature of the heat medium in the main outlet flow path 33 and closes the snow melting branch outflow flow path 35 when the temperature is below a reference value. It will be done. Further, in this example, the switching valves V1 and V2 are electrically operated three-way valves having first, second, and third ports x, y, and z, as shown in FIG. 9. In addition, the switching valves V1 and V2 are normally conductive between the first and second ports x and y, and
When energized, the second and third ports y and z operate so as to be electrically connected, and the main outlet flow path 33 and the main return flow path 34 are connected to the first port x, and the branch outflow flow path 39 and the branch return flow path are connected to the first port x. A circulation path 40 is connected to each second port y. The operating motors of the switching valves V1 and V2 are electrically connected to a power source T via an on/off switch SW, as shown by the dashed line in FIG. The pump 43 is electrically connected to the side via the relay U. In this example, the relay U is actuated by a temperature sensor S installed in the attic or the like, and closes the relay circuit and operates the pump 43.

The heat storage tank C also includes a water tank 41 that communicates with a city water pipe and stores city water therein, and a heat exchange pipe 42 disposed within the water tank 41. The end is connected to the switching valve V via a pump 43 and a sealed expansion tank 44.
The inlet end is connected to the third port z of the switching valve V2, and the inflow end thereof is connected to the third port z of the switching valve V2. The sealed expansion tank 44 can absorb changes in the volume of the heating medium due to temperature due to changes in the volume of the tank, maintain a constant pressure of the heating medium, and prevent damage to the device. Note that in this example, the main outlet flow path 33 is also provided with a sealed expansion tank 4.
4 is interposed.

A hot water boiler F is connected to the heat storage tank C via a suction passage 46 having a circulation pump 45, and after heating the city water preheated in the water tank 41 of the heat storage tank C, Drain water from the faucet F1.

The roof snow melting heating device 1 of the present invention includes a clothes dryer D placed in a bathroom, for example, and a heating device E placed under the floor of a house to heat each room. The container D and the heating device E are connected to the main outlet flow path 33 and the main return flow path 34 via the drying flow path 49 and the heating flow path 50, thereby making it possible to supply the heating medium for the heating boiler B. .

However, in the winter, the switch S
When W is in the OFF state, heating boiler B is operated. As a result, the heat medium in the heating boiler B is heated and pumped to the main outlet flow path 33, and further passes through the snow melting branch outlet flow channel 35 and the branch outlet flow channel 39 to the heat collectors A1b and A2.
, A3 and the heat collector A1a, and then returns to the heating boiler B through the main return flow path 34. Also, the heat medium is the heat collector A1a.
, A1b, A2, and A3, the roofing material 5 is effectively and uniformly heated through the heat collecting pipe 2, the heat conductive sheet 7, and the holding material 6, and the snow on the roof can be melted. Similarly, the heated heat medium is supplied to the clothes dryer D and the heater E through the main outlet flow path 33 to perform drying and heating. In this example, snow melting, drying, and heating are performed at the same time, but each function can be performed independently if the on-off valves 37 are manually operated on-off valves. Further, when the heating boiler B is enabled to operate, for example, by sensing a snowfall sensor installed on the roof, snow melting can be performed automatically.

Also, during the summer and intermediate seasons, the switch SW is turned on to energize the switching valves V1 and V2. Thereby, the heat collector A1a is electrically connected to the heat storage tank C. Also, at this time, the temperature sensor S detects the temperature of the heat medium in the heat collector A1a, and if it is sufficiently heated by solar heat, the pump 43 is activated via the relay U, and the city water in the heat storage tank C is pumped. Hot water can be supplied by heating.

Furthermore, the first and third switching valves V1 and V2
If the ports x and z are configured to be electrically conductive, the stored city water can conversely heat the heat medium in the heat storage tank C, and the heating heat medium can be used in the clothes dryer D and heater E. It can be used for drying and heating.

Furthermore, in this example, the heat collector A1a, which faces south and has a high sunlight effect and excellent solar heat collection effect, is selectively electrically connected to the heating boiler B and the heat storage tank C. Equipment A1a, A1b, A2, A3 and heating boiler B
and the heat storage tank C may be electrically connected, and each heat collector A1a
, A1b, A2, and A3, and by detecting the heat collector where the heat medium reaches the highest temperature due to solar heat, the roof of the present invention can be constructed so that the heat collector and the heat storage tank C are electrically connected. The snow melting heating device 1 can be changed into various forms.

[0030]

[Effects of the Invention] As described above, since the roof snow melting heating device of the present invention is configured, it is possible to exhibit a large number of functions while reducing the increase in equipment cost, and moreover, the operating efficiency of the device is greatly increased. It can be increased to

[Brief explanation of the drawing]

FIG. 1 is a diagram schematically showing an embodiment of the present invention.

FIG. 2 is a diagram further simplifying FIG. 1;

FIG. 3 is a perspective view showing a solar heat collector that also serves as a roof snow melter.

FIG. 4 is a sectional view showing a meandering groove.

FIG. 5 is a sectional view illustrating the piping state of the heat collecting pipe.

FIG. 6 is a sectional view illustrating the piping state of the heat collecting pipe.

FIG. 7 is a sectional view illustrating the piping state of the heat collecting pipe.

FIG. 8 is a perspective view showing the holding material.

FIG. 9 is a schematic diagram illustrating ports of a switching valve.

FIG. 10 is a perspective view showing a house in which the present invention is adopted.

[Explanation of symbols]

2 Heat collection pipe A. Solar heat collector for roof snow melting B Heating boiler C Heat storage tank D Clothes dryer E Heating equipment R Roof V, V1, V2 switching valve

Claims (1)

[Claims] 1. A solar heat collector for roof snow melting, which is disposed on a roof and has a heat collecting pipe, and is capable of collecting solar heat in a heat medium passing through the heat collecting pipe, and melting snow by the heat medium passing through the heat collecting pipe, A roof snow melting and heating device that selectively connects a heating boiler and a heat storage tank with each other through a switching valve, and can supply a heat medium from the heating boiler or the heat storage tank to a clothes dryer and a heater.