JP2577778Y2 - Solar-powered building - Google Patents

Description

[Detailed description of the invention]

[0001]

[Technical Field of the Invention] The present invention eliminates the need for design items such as positioning, makes it extremely easy and easy to work in the space behind a hut, and can take in sufficiently heated warm air indoors. About things.

[0002]

[Technical Background of the Invention]
As described in JP-A-33-75 and JP-A-64-75858, there is known a solar-heat-utilizing building in which solar heat is collected by a heat collecting device and used for heating the inside of the building.

[0003] In such a building utilizing solar heat, a heat collecting device for heating the taken-in outside air by sunlight is installed on an inclined roof. The warm air heated by the heat collecting device is taken indoors and stored in the heat storage device, while the warm air is released into the room for heating.

[0004] The above-mentioned heat collecting device is designed to form a flow path at a predetermined interval between a transparent glass plate and a roof, and takes in outside air from the eaves side into this flow path and irradiates it through a glass plate or the like. The outside air flowing obliquely upward is heated by the sunlight. On the upper side of the flow passage, a number of indoor intakes, which are through holes, are provided in the roof, and warm air is guided indoors through the indoor intakes.

[0005] On the attic side, a heat collecting duct for collecting warm air led from the many indoor intakes is provided.
That is, the heat collecting duct is a long object having a U-shaped cross section, and is attached to the attic side so as to cover the above-mentioned many indoor entrances from below. Further, an indoor duct for guiding warm air from the heat collecting duct to a heat storage device installed under the floor is connected to the heat collecting duct. As a result, warm air coming out of many indoor intakes is collected by the heat collection duct,
It is sucked into the indoor duct and guided to the heat storage device.

However, in such a configuration using a heat collecting duct, it is necessary to install a heat collecting duct at a position covering a large number of indoor inlets. The heat collection duct must be designed so that the positions are aligned, the alignment is complicated, and the processing cannot be easily performed on site. In addition, when laying solar thermal equipment on buildings with various structures, heat collection ducts must be designed for each building, and various types of heat collection ducts are required. I can't have sex.

[0007] Further, when comparing an indoor intake located near an indoor duct for sucking warm air into an indoor space and an indoor intake located far from the indoor duct, the warm air emitted from a closer indoor intake is better. Because the air is sucked into the indoor duct faster than the warm air coming out of the distant indoor inlet, the warm air coming out of the closer indoor inlet flows faster than the warm air coming out of the distant indoor inlet. Happens. as a result,
Warm air that is not sufficiently heated by sunlight is guided to the indoor duct from the closer indoor intake, and there is a problem that the temperature of the warm air in the indoor duct cannot be sufficiently increased.

Further, since the heat collecting duct is a long object extending over several meters, it is extremely difficult to route the heat collecting duct in the attic space of a narrow attic, which is extremely complicated for an operator. . For this reason, it is conceivable to divide the heat collecting duct into a plurality of pieces. However, the work for mounting the heat collecting duct is increased, and the work is not reduced.

Further, in addition to the problems with the heat collecting device, in a solar-powered building, heating in winter is considered, but cooling in summer has not been considered, and ventilation and cooling are not considered. There was no idea about the consistency of the building, and it was not always possible to realize a comfortable living environment.

[0010]

[Purpose of the Invention] The present invention has been made in view of the above-mentioned circumstances, and eliminates the need for a conventional design for positioning a heat collecting duct, thereby making work in the space behind a cabin extremely simple and easy. The objective is to provide a solar-heated building that can take in sufficiently heated warm air indoors, and in addition to these, can also effectively use outdoor cool air, etc., and realize a comfortable living environment throughout the four seasons. And

[0011]

[Summary of the Invention] To achieve this object, the solar thermal building according to the present invention heats the outside air with solar heat, takes it indoors, stores it, and releases it indoors.
At least a solar heat utilizing building for heating, installed on a roof, heated by solar heat while flowing outside air to warm up, and a heat collector that flows warm air indoors from a plurality of indoor intakes formed on the roof. , Located in the space behind the hut,
A plurality of inlet sides are connected by a plurality of flexible tubes to a plurality of indoor inlets of the heat collection device, thereby collecting warm air from the plurality of indoor inlets and at least one outlet side storing the warm air. And a heat collection box connected to a duct for leading to the device.

[0012] According to the present invention configured as described above, the first
In addition, a heat collection box is disposed in the back space of the cabin, and the heat collection box is connected to the heat collection device by using a plurality of flexible tubes. Therefore, it is only necessary to connect the flexible tubes without circulating the long heat collecting duct in the narrow cabin space as in the related art. Therefore, the work in the back space of the cabin can be made extremely simple and easy.

Second, since it is only necessary to connect the heat collecting box and the heat collecting device by using a flexible tube, the heat collecting duct and the indoor inlet of the heat collecting device need not be connected in the conventional manner. There is no need to perform a design that aligns the positions, and mounting work on the site is also facilitated. Furthermore, when laying the solar thermal apparatus in buildings having various structures, it is not necessary to design a heat collecting duct corresponding to each building, and it is possible to have versatility.

Third, by making the lengths of the plurality of flexible tubes uniform, the distance from each outlet of the heat collecting device to the heat collecting box can be made uniform. As a result, warm air is taken into the heat collecting box from each outlet of the heat collecting device at a uniform flow rate, and the air sufficiently warmed at various points of the heat collecting device can be taken indoors, improving heating efficiency. can do.

Further, the solar thermal building according to claim 2 is heated by sunlight while flowing outside air by a heat collecting device installed on the roof to make it warm, which is sucked indoors by suction means, In a solar-powered building that switches the switching means of the flow path to guide warm air to the heat storage device to store heat and release it indoors, when the heat collection device does not receive sunlight, the heat collection device cools down to a predetermined temperature or less. And a control unit that controls the switching unit so as to drive the suction unit so as to suck the extracted outside air indoors, guide the outside air to the heat storage device to store the cold air, and discharge the indoor air to the indoor unit. And

According to the building using solar heat according to the present invention, when heating the inside of the building using solar heat, the suction means and the switching means are controlled and the solar heat collecting apparatus collects the heat. The heated and heated air is led to the heat storage device, where heat is exchanged and stored in the heat storage device, and this heat can be effectively used for heating.

On the other hand, when it is desired to cool the inside of the building, when the heat collecting device does not receive sunlight,
The suction unit and the switching unit are controlled so that the outside air cooled to a temperature lower than the temperature is sucked indoors, and cool heat of the outside air having a predetermined temperature or lower is stored in the heat storage device. The cold can effectively cool the room.

Therefore, not only the solar heat can be effectively used, but also the cool air outside can be effectively used, and a comfortable living environment can be realized throughout the four seasons.

[0019]

DETAILED DESCRIPTION OF THE INVENTION Hereinafter, a solar thermal building according to an embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a cross-sectional view schematically illustrating a solar thermal building according to an embodiment of the present invention. FIG. 2 is a perspective view of a heat collecting device, a heat collecting box, and the like used for the solar thermal building according to the embodiment. FIG. 3 is a cross-sectional view of a heat collection device, a heat collection box, a control box, and a heat storage device used in the solar thermal building according to the embodiment.

As shown in FIG. 1, in the solar thermal building 2 according to the present embodiment, a heat collecting device 6 is installed on a roof 4. The heat collecting device 6 has an intake port 8 that can take in outdoor air, and an internal flow path 10 through which the air taken in flows. The internal flow path 10 is irradiated with sunlight through a transparent member such as glass, and the outdoor air taken in here is heated. In order to increase the efficiency of heat exchange with the internal air and enhance the reinforcing effect, a corrugated plate having an uneven shape may be provided in the internal flow path 10. In addition, it is preferable to install a heat insulating material between the heat collecting device 6 and the roof 4. further,
It is preferable to install a solar cell 12 for driving a fan 19 and the like described later on one surface of the heat collecting device 6 on the sunlight irradiation side.

As shown in FIGS. 2 and 3, an air circuit is provided for guiding the warm air heated by the heat collecting device 6 to a heat storage device 30 provided under the floor. First, the indoor inlet 6a of the warm air of the heat collecting device 6 is connected to a heat collecting box 15 disposed in the cabin space by a number of flexible tubes 14. The heat collection box 15 is connected by a flexible tube 18 to a control box 20 for switching the flow of warm air. A fan 19 for sucking warm air is disposed in a flexible tube 18 in front of the control box 20. One outlet of the control box 20 is connected to a heat storage device 30 via an indoor duct 25, and the other outlet of the control box 20 is connected to a discharge duct 24.

More specifically, as shown in FIG. 3, a rigid duct 6 is provided in the indoor inlet 6a of the heat collecting device 6.
b is provided in the duct 6b.
Are connected. The flexible tube 14 may be any material as long as it can be bent, and a material such as a glass wool duct having heat insulating properties is preferable. As shown in FIG. 2, a plurality of the flexible tubes 14 are provided, but preferably have the same length as described later.

The heat collecting box 15 to which the flexible tube 14 is connected is formed in a rectangular parallelepiped box on the lower side and in a quadrangular pyramid box on the upper side. A rigid duct 16 is provided at the entrance of the quadrangular pyramid-shaped box, and a flexible tube 14 is connected to the duct 16. Although only one flexible tube 14 is shown in FIG. 3, the other flexible tubes 14 are connected by a similar configuration.
Further, a rigid duct 17 as an outlet is provided at the bottom of the rectangular box, and a flexible tube 18 is connected to the duct. With such a configuration, warm air flowing out of each indoor inlet 6a of the heat collecting device 6 can be collected in the heat collecting box 15 by the plurality of flexible tubes 14. Moreover, since the lower side of the heat collecting box 15 is formed in a rectangular parallelepiped box and the upper side is formed in a quadrangular pyramid-shaped box, the heat collector box 15 enters from the inlet duct 16 and exits from the outlet duct 17. The flow of warm air is not extremely bent. Therefore, it is possible to flow warm air without causing pressure loss.

As described above, since the heat collection box 15 is disposed in the space behind the cabin, and the heat collection box 15 and the heat collection device 6 are connected using the plurality of flexible tubes 14,
It is only necessary to connect the flexible tubes 14 without circulating a long heat collecting duct in a narrow cabin space as in the related art. Therefore, the work in the back space of the cabin can be made extremely simple and easy.

Further, since it is only necessary to connect the heat collecting box 15 and the heat collecting device 6 by using the flexible tube 14, the heat collecting duct and the indoor inlet of the heat collecting device are conventionally connected. There is no need to perform a design for alignment, and mounting work on site is also facilitated. Furthermore, when laying the solar thermal apparatus in buildings having various structures, it is not necessary to design a heat collecting duct corresponding to each building, and it is possible to have versatility.

Further, by making the lengths of the plurality of flexible tubes 14 uniform, the distance from each indoor inlet 6a of the heat collecting device 6 to the heat collecting box 15 can be made uniform. Therefore, warm air is taken into the heat collecting box 15 at a uniform flow rate from each indoor inlet 6a of the heat collecting device 6, and air sufficiently warmed at various points of the heat collecting device 6 can be taken indoors. Heating efficiency can be improved.

Further, in the control box 20,
A fan 19 (suction means) capable of forcibly blowing air is provided in a duct 21 on the entrance side. Further, inside the control box 20, the flow of warm air to the indoor duct 25 connected to the heat storage device 30 and the discharge duct 24
22 (switching means) for switching the flow of warm air to the air
Is provided. Thereby, when the damper 22 is switched to close the discharge duct 24 as shown in FIGS. 1 and 3, the warm air flows into the heat storage device 30 while the damper 22 is switched to close the indoor duct 25. At some point, warm air is exhausted through exhaust duct 24. The driving of the fan 19 and the switching of the damper 22 are controlled by appropriate control means (not shown), and are driven by the solar cell 12 described above.

In this embodiment, when the heat collecting device 6 does not receive sunlight, the outside air (for example, nighttime cold air) cooled to a predetermined temperature or less in the heat collecting device is introduced indoors.
In addition to driving the fan 19, the outside air is stored in the heat storage device 30.
Control means (not shown) for controlling the switching of the damper 22 so as to store the cooling gas and discharge it indoors.
Is provided. It should be noted that known hardware may be used for this control means, and is not particularly limited.

The heat storage device 30 is arranged under the floor of the building, and the air in the indoor duct 25 is guided to the inside of the device, exchanges heat with the air flowing inside, and stores cold or warm heat of the flowing air. The heat exchanged air can be discharged into the building. The heat storage device 30 is not particularly limited, but a device in which a concrete 31 is cast outside the fume tube 32 using a fume tube 32 or the like is used.

Further, on the outer periphery of the foundation 34, the outer periphery of the pillar 36, and the indoor side of the roof 4 in the solar thermal building 2 according to the present embodiment, a heat insulating material 38 is provided so as to comprehensively surround the building. Moreover, it is stretched so as to form an inner ventilation layer 44 that connects the underfloor space 40 and the attic space 42. Between the heat insulating material 38 and the outer wall material 46 and the heat insulating material 3
An outer ventilation layer 48 may be formed between the roof 8 and the roof 4. In a building that comprehensively surrounds the building with the heat insulating material 38 as described above, an underfloor ventilation opening is provided under the floor for the purpose of systematically ventilating the underfloor space 40, the inner ventilation layer 44, and the attic space 42. It is preferable to provide the under-building ventilation port 52 in the ridge portion of the roof while providing 50.
It is preferable to provide a below-floor opening / closing damper 54 and a below-building opening / closing damper 56 in these ventilation ports, respectively.

In the thus constructed building 2, when the underfloor opening / closing dampers 54 and 56 are closed to make the entire house a closed space, the air conditioner is often operated in such a case. It is preferable to forcibly ventilate the building, and in a room in a building, for example, a toilet or a bathroom, a ventilation device 58 capable of forcibly discharging air in the building to the outside is provided. preferable.

The operation of such a building utilizing solar heat will now be described. If the season is winter or summer, underfloor ventilation and eaves ventilation5 to heat or cool the inside of the building.
2 is closed.

In the case of winter noon, as shown in FIG. 1, when the sun irradiates the solar cell 12, the electromotive force causes
The fan 19 is driven. Then, the damper 22 is switched to close the discharge duct 24. For this reason,
The air heated by the heat collector 6 is supplied to the flexible tube 14,
The heat is sent to the heat storage device 30 via the heat collection box 15, the control box 20, and the indoor duct 25, where the heat is exchanged and stored, and also sent to each room, contributing to the heating of each room. Ventilator 58 in operation
Released from outside.

In the winter night, as shown in FIG. 4, the solar cell 12 is not irradiated with sunlight, but
There is a risk that cold air may enter the room through the fan 19,
Is not driven, and the damper 22 is switched to close the indoor duct 25. As a result, the heat stored in the heat storage device 30 during the day is released, and each room is warmed. When the ventilator 58 is in operation, outside air is introduced from a register or the like at night. Also, at night, the ventilation system 5
8 may be stopped.

Therefore, solar heat is effectively used for heating regardless of day or night. In the summer daytime, as shown in FIG. 5, the solar cell 12 is irradiated with sunlight, the fan 19 is driven, and the damper 22 is switched to close the indoor duct 25. Thereby, the intake through the inlet 8
The air that has been heated by the heat collector 6 is discharged outside by the fan 19 through the discharge duct 24. In this case, a heat exchanger may be attached to the discharge duct 24, and the heat exchanger may convert cold water into hot water or the like.
Further, as described later, the heat storage device 30 has cold heat stored in the summer night, and each room is gently cooled by this cold heat, and the air is discharged from the ventilation device 58 to the outside.
Therefore, the cooling action in each room is assisted.

In the summer night, as shown in FIG. 6, a relatively cool air at night is taken in to exert a cooling effect. That is, switching is performed so that the fan 19 is driven and the damper 22 closes the discharge duct 24. As a result, the night cold air, intake 8
And is taken into the heat storage device through the heat collecting device 6, the indoor duct 25, and the like that are not irradiated with sunlight. As a result, the cold heat is stored in the heat storage device 30, and the air discharged from the heat storage device 30 passes through each room, cools each room, and is then discharged from the ventilation device 58. Thereby, the cool air due to the atmospheric radiation on the heat collecting surface in the summer night can be effectively used.

In addition, in seasons other than summer and winter, for example, it is possible to open the underfloor ventilation port 50 and the underfloor ventilation port 52 for ventilation. It should be noted that the present invention is not limited to the above-described embodiment, and various modifications can be made within the scope of the present invention.

In particular, the shape of the heat collecting box 15 may be various. For example, as shown in FIG. 7, the shape of the heat collecting box 15 may be formed in a rectangular parallelepiped shape as a whole. Also in this case, it is preferable that the flexible tube 14 is connected to the heat collection box 15 so as to form an obtuse angle. This allows air to flow without pressure loss. Further, as shown in FIG. 8, the heat collecting box 15 may be formed in a hemispherical shape as a whole. Also in this case, air can flow without pressure loss.

Further, in the present embodiment, a configuration is adopted in which nighttime cold air is introduced indoors on a summer night to achieve cooling.
The heat collecting device according to the present invention can be applied to at least a building that performs heating by solar heat.

[0041]

[Effects of the Invention] As described above, in the present invention, the first
In addition, a heat collection box is disposed in the back space of the cabin, and the heat collection box is connected to the heat collection device by using a plurality of flexible tubes. Therefore, it is only necessary to connect the flexible tubes without circulating the long heat collecting duct in the narrow cabin space as in the related art. Therefore, the work in the back space of the cabin can be made extremely simple and easy.

Second, since it is only necessary to connect the heat collecting box and the heat collecting device by using a flexible tube, the conventional heat collecting duct and the indoor inlet of the heat collecting device need to be connected. There is no need to perform a design that aligns the positions, and mounting work on the site is also facilitated. Furthermore, when laying the solar thermal apparatus in buildings having various structures, it is not necessary to design a heat collecting duct corresponding to each building, and it is possible to have versatility.

Third, by making the lengths of the plurality of flexible tubes uniform, the distance from each indoor inlet of the heat collecting device to the heat collecting box can be made uniform. As a result, warm air is taken into the heat collection box at a uniform flow rate from each indoor inlet of the heat collection device, and the air sufficiently warmed in various places of the heat collection device can be taken indoors, and the heating efficiency can be improved. Can also be improved.

According to the solar powered building according to the second aspect,
When heating the inside of a building using solar heat, the suction means and the switching means are controlled to guide the heated air collected by the solar heat collecting device to the heat storage device, where heat is exchanged. Heat is stored in the heat storage device, and this heat can be effectively used for heating.

On the other hand, when it is desired to cool the inside of the building, when the heat collecting device does not receive sunlight,
The suction unit and the switching unit are controlled so that the outside air cooled to a temperature lower than the temperature is sucked indoors, and cool heat of the outside air having a predetermined temperature or lower is stored in the heat storage device. The cold can effectively cool the room.

Therefore, not only can the solar heat be effectively used, but also the outdoor cold air can be effectively used, and a comfortable living environment can be realized throughout the four seasons.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view schematically illustrating a solar thermal building (in the case of winter noon) according to an embodiment of the present invention.

FIG. 2 is a perspective view of a heat collection device and a heat collection box used for a solar thermal building according to the embodiment.

FIG. 3 is a heat collection device, a heat collection box, a control box, and a heat collection device used for a solar-powered building according to the embodiment.
FIG. 2 is a cross-sectional view of a heat storage device.

FIG. 4 is a cross-sectional view schematically showing a solar thermal building (in the case of a winter night) according to the embodiment.

FIG. 5 is a cross-sectional view schematically showing the solar thermal building (summer daytime) according to the embodiment.

FIG. 6 is a cross-sectional view schematically showing the solar thermal building (summer night) according to the embodiment.

FIG. 7 is a sectional view showing a first modification of the heat collection box.

FIG. 8 is a cross-sectional view showing a second modification of the heat collection box.

[Explanation of symbols]

 Reference Signs List 6 Solar heat collector 6a Indoor inlet of solar heat collector 14 Flexible tube 15 Heat collecting box 19 Fan (suction means) 22 Damper (switching means) 25 Indoor duct (indoor flow path)

──────────────────────────────────────────────────続 き Continuation of front page (56) References JP-A-64-75858 (JP, A) JP-A-63-165633 (JP, A) JP-A-60-1449849 (JP, A) 5915 (JP, A) JP-A-3-70929 (JP, A) JP-A-1-88350 (JP, A) JP-A-60-263055 (JP, A) (58) Fields investigated (Int. Cl. ⁶ , DB name) E04B 1/74 E04B 1/70

Claims (2)

(57) [Scope of request for utility model registration] Claims 1. A solar-heated building that heats outside air by solar heat, takes it indoors, stores the heat therein, and discharges it indoors to at least heat the building. The building is installed on a roof and flows outside air. A heat collector that heats the solar heat to warm the air and flows the warm air into the room from a plurality of indoor inlets formed on the roof, and a plurality of flexible tubes arranged in the back space of the cabin and a plurality of flexible tubes on the entrance side A plurality of indoor inlets of the heat collector are connected, whereby warm air from the plurality of indoor inlets is collected, and at least one outlet side is connected to a duct for guiding the warm air to the heat storage device. Heat collection box,
A building utilizing solar heat, comprising: 2. Heating by sunlight while flowing outside air by a heat collector installed on the roof to warm the air, sucking it indoors by suction means, switching the indoor flow path switching means, and storing the warm air. In a solar-powered building that guides the device to store heat and releases it indoors, when the heat collector does not receive sunlight ,
A control means for driving the suction means to suck the outside air cooled to a predetermined temperature or less indoors, and for controlling the switching means to guide the outside air to the heat storage device to store the cool air and discharge the indoor air to the indoor. A building utilizing solar heat, comprising: