JP2014047529A - Dwelling house utilizing solar heat - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a dwelling house utilizing solar heat, which can effectively collect the heat of sunlight during daytime hours even when a solar water heater is arranged under a roof surface.SOLUTION: A roof 2 for covering an upper section of a building 1 is made of an acrylic plate, and a heat insulation layer 3 is formed on a surface of a ceiling 3 that separates a living space 5 in the building 1 from the roof 2. A solar water heater 10 is installed in an attic space 9 that is formed between the ceiling 3 and the roof 2, and warm water is taken out from the solar water heater 10 through a delivery pipe 11 and supplied to the living space 5.

Description

  The present invention relates to a solar heat utilization house, and more particularly to a solar heat utilization house that effectively enhances solar heat collection and effectively utilizes solar energy.

  In recent years, there has been an increasing demand for housing that can actively use solar energy due to increased energy-saving momentum. As an energy-saving device for homes that responds to this situation, solar water heaters are regenerative water heaters that heat and store water with solar heat to supply hot water, and energy conversion efficiency among existing renewable energy-using devices And the most cost-effective. Such a solar water heater is usually installed on an outdoor roof, and hot water is obtained by warming water in a hot water tank by a heat collector that collects solar heat, and is used for hot water supply in a house.

  However, when a solar water heater is installed on the roof, there is a drawback that the heat retention is drastically reduced after sunset, particularly in winter. Moreover, there is a risk of causing an accident due to a problem in the appearance of the house or a damage caused by a storm. Therefore, the roof structure which eliminates such a problem by setting it as the structure which arrange | positions a solar water heater below a roof surface is proposed (for example, refer patent document 1).

  And in order to condense sunlight from a part of roof, the roof tile of a house is known for the roof tile of a daylight formed from the glass which is strong against a damage | wound, and is excellent also in durability (for example, patent document 2). reference). Moreover, what uses polycarbonate-type resin is also known as a plastic transparent roof material with a large lightweight and mechanical strength (for example, refer patent document 3).

JP-A-7-150719 Japanese Utility Model Publication No. 6-56261 JP-A-4-289362

  In the prior art of Patent Document 1, a solar water heater main body including a heat collecting plate and a water storage tank having the same gradient as the roof gradient is formed on a part of the roof. This is an internal configuration. However, in this prior art, since solar heat is absorbed only from the heat collecting plate that forms part of the roof, the time for collecting heat is limited compared to the case where the solar water heater body is installed on the roof. The efficiency will be significantly reduced.

  And, in order to collect sunlight from the roof, the glass daylighting tile shown in Patent Document 2 is not only easy to break but dangerous for use on the roof, and it is difficult to process and relatively heavy. Have. In addition, the polycarbonate resin transparent roof material disclosed in Patent Document 3 is easily scratched, and when a force exceeding the tensile strength is applied, it has a drawback that the transparency is remarkably lowered.

  In view of the above problems, the present invention is capable of concentrating sunlight effectively through the daytime even when a solar water heater is placed under the roof surface, and is also excellent in terms of durability and translucency. The purpose is to provide housing.

  In order to solve the above-mentioned problem, a solar heat utilizing house according to the present invention is a roof made of an acrylic plate and covering an upper part of a building, a ceiling that partitions a living space in the building and the roof, A solar water heater disposed in an attic space formed between the ceiling and the roof, comprising a heat insulating layer formed on the surface, a heat collector for collecting solar heat, and a hot water tank, and the hot water tank And a delivery pipe for supplying the hot water into the living space.

  And the ventilation part which ventilates the air of the said attic space in the said living space was provided in the said ceiling, It is characterized by the above-mentioned. Further, the ceiling is provided with a translucent part. In addition, a transparent heat insulating paint is applied to the inner surface of the roof.

  Moreover, the solar heat utilization house which concerns on this invention is comprised of the acrylic board, the roof which covers the upper part of a building, the ceiling which partitions between the living space in the said building, and the said roof, The surface of the said living space side in the said ceiling A solar water heater that includes a heat insulating layer formed on the solar cell, a solar collector that collects solar heat, and a hot water storage tank, and the solar collector is disposed in an attic space that is formed between the ceiling and the roof; And a delivery pipe for supplying hot water from the hot water tank into the living space.

  And the said solar water heater connects the said heat collector and the said hot water storage tank with a circulation path, It is characterized by exchanging heat with the stored water of the said hot water tank with the heat medium which flows through the said circulation path.

  According to the present invention, since the roof is made of acrylic, the solar water heater can effectively collect sunlight over the entire daytime even indoors. And since the attic space between a roof and the ceiling which gave the heat insulation layer is warmed by solar heat and thermally sealed, the heat collecting effect in the heat collecting part of a solar water heater can also be heightened.

It is explanatory drawing which shows the schematic structure of the solar-heat utilization house which concerns on embodiment of this invention by a cross section. It is explanatory drawing which shows the structure of a solar-heat utilization system concretely with a block. It is explanatory drawing which shows the other structure of a solar-heat utilization system concretely with a block.

  Hereinafter, the present invention will be described in detail based on the preferred embodiments shown in the drawings. FIG. 1 is a sectional view showing a schematic configuration of a solar heat utilizing house according to the present invention. The roof surface 2A and the second roof surface 2B constituting the roof 2 covering the upper part of the building 1 are combined so that the cross section is inclined to both sides from the top ridge toward the ground, and the cross section is triangular.

  The roof surfaces 2A and 2B are formed of a transparent acrylic plate, and a transparent heat insulating paint 7 is applied to the inner surfaces of the roof surfaces 2A and 2B to prevent heat insulation and condensation. Acrylic has high impact resistance as well as weight resistance, is a material having high transparency equivalent to glass, and is excellent in workability during production. And the acrylic board has good surface smoothness, and if the inclination angle α of the roof surfaces 2A and 2B is about 45 degrees, it can be naturally slid effectively even if it snows in a cold region in winter. Moreover, since it is lightweight compared with the conventional tile roof by setting it as an acrylic roof structure, if it assembles and installs in a prefabricated form, installation cost can be reduced by shortening installation work.

  The living space 5 in the building 1 and the roof 2 are partitioned by a ceiling 3, and a heat insulating layer 4 is formed on either or both of the surface on the living space 5 side and the surface on the roof 2 side of the ceiling 3. Yes. As the heat insulating material of the heat insulating layer 4, various fiber type or foam type heat insulating materials can be used. Moreover, it is good also as a heat insulation layer 4 by apply | coating a heat insulation paint similarly to the inner surface of roof surface 2A, 2B.

  Thus, by forming the heat insulation layer 4 on the surface of the ceiling 3 on the living space 5 side, the air in the attic space 9 is warmed and thermally sealed by sunlight inserted through the highly transparent acrylic roof 2. Will be. A solar water heater 10 is installed on the upper surface of the ceiling 3 in the attic space 6.

  The solar water heater 10 stores city water supplied through the electromagnetic valve 14, collects heat from sunlight inserted through the acrylic roof 2, and warms the stored water. The solar heat collecting effect by the solar water heater 10 at this time is substantially the same as the case where the solar water heater 10 is installed on the roof 2 because the entire roof surfaces 2A and 2B of the roof 2 are transparent. It becomes. And since the solar water heater 10 is installed in the warm space of an attic, the heat collection effect in a heat collecting part also increases.

  And the water heated by the solar water heater 10 by the solar heat is taken out into the living space 5 from the delivery pipe 11, supplied to the hot water supply pipe 13 in the living space 5 through the hot water heater 12, and also to the floor heater 15. Used. The hot water heater 12 includes an auxiliary heat source such as a gas, a heater, or a heat pump, and heats hot water as necessary to supply the hot water to the hot water supply pipe 13 for use in a bath / shower or cooking. In particular, in the summer, sufficient hot water can be supplied without obtaining heat from the auxiliary heat source. And in order to replenish the shortage of consumed water, the solenoid valve 14 is opened and city water is supplied to the solar water heater 10.

  On the other hand, the warm air in the attic space 9 is blown into the living space 5 by the blower 8 provided on the ceiling 3, so that it can be used for heating in winter. The blower 8 is provided with a shutter 8A for blocking the blower passage when not in use, and is configured to reciprocate in the direction of the arrow along the surface of the ceiling 3. The heat insulating layer 4 is also formed on the surface of the shutter 8A, thereby preventing the heat from the warm air in the attic space 9 from being transmitted to the living space 5 when the air passage is blocked in the summer.

  Furthermore, natural light can be obtained by providing a translucent portion 6 made of glass or the like on the ceiling 3 and taking sunlight into the living space 5 through the acrylic roof. In this case, the above-described heat insulating paint may be applied to the heat insulating layer 4 formed on the surface of the light transmitting portion 6.

  FIG. 2 specifically illustrates the configuration of the solar heat utilization system. The solar water heater 10 has a configuration in which a hot water tank 10 </ b> A to which city water from the electromagnetic valve 14 is supplied and a heat collector 10 </ b> B are integrated, and is installed on the surface of the ceiling 3. The heat collector 10B includes a plurality of heat collecting tubes, and the water is a natural circulation type that is heated by natural circulation between the hot water storage tank 10A and the heat collector 10B by convection.

  Water pressure is used to inject water into the hot water tank 10A, and the difference in elevation between the hot water tank 10A and the water intake valve 16 of the water heater 12 is used to extract hot water. There is also a method in which the hot water storage tank 10A has a pressure-resistant structure, and the hot water is taken out by direct connection of the water supply and direct pressure of the water supply.

  The hot water stored in the hot water storage tank 10 </ b> A is introduced from the delivery pipe 11 to the hot water heater 12 by opening the electromagnetic valve 16, and is supplied into the living space 5 through the hot water supply pipe 13.

  During the operation of the floor heater 15, the three-way valve 17 is opened and the hot water in the hot water storage tank 10A is taken out to the delivery pipe 11, and passes through the piping of the floor heater 15 via the three-way valve 17 and the check valve 19a. 18 flows through the circulation path returning to the hot water tank 10A. Opening and closing of the three-way valve 17 is controlled by a signal from a control unit (not shown) of the floor heater 25. Further, the control unit of the floor heater 15 performs control to switch the hot water from the hot water storage tank 10 </ b> A through the hot water heater 12 to the pipe line of the floor heater 15 according to the set temperature of the floor heater 15.

  The solar water heater 10 in which the hot water storage tank 10A and the heat collector 10B are integrally formed is disposed in the attic space 9 where the hot water storage tank 10A is heated by solar heat, so there is little energy loss. There is an advantage that the collected heat can be stored in the hot water tank 10A for a long time. However, the ceiling 3 must support a heavy hot water storage tank 10A containing water, which places a heavy burden. Therefore, the solar water heater 10 in which the hot water tank 10A and the heat collector 10B are separated can also be used.

  FIG. 3 illustrates an example of the solar water heater 20 in which the hot water tank 20A and the heat collector 20B are separated. In this case, the heat collector 20 </ b> B is installed on the surface of the ceiling 3, and the hot water storage tank 20 </ b> A is installed on a gantry provided on the ground, and city water is supplied from the electromagnetic valve 24. The hot water tank 20 </ b> A and the heat collector 20 </ b> B are connected by a circulation path 30, and the heat medium circulates in the circulation path 30 by the operation of the pump 28. The stored water in the hot water tank 20A is warmed by heat exchange with the heat medium warmed by the heat collector 20B. Water is used as the heat medium, but it is better to use antifreeze in cold regions.

  Hot water in the hot water storage tank 20 </ b> A is introduced into the hot water heater 22 through the delivery pipe 21 by opening the electromagnetic valve 26, and is supplied into the living space 5 from the hot water supply pipe line 23. The electromagnetic valve 24 opens to supply the shortage of consumed water and supplies the stored water to the solar water heater 20.

  During the operation of the floor heater 25, the three-way valve 27 is opened and the hot water in the hot water storage tank 20A is taken out to the delivery pipe 21 and passes through the piping of the floor heater 25 via the three-way valve 27 and the check valve 29a. 30 flows through the circulation path returning to the hot water tank 20A. Opening and closing of the three-way valve 27 is controlled by a signal from a control unit (not shown) of the floor heater 25. Further, the control unit of the floor heater 25 performs control to switch the hot water from the hot water storage tank 20 </ b> A through the hot water heater 22 to the piping path of the floor heater 25 according to the set temperature of the floor heater 25.

  As mentioned above, the solar heat utilization house which concerns on this invention comprises the whole surface of a roof with an acrylic board, and efficient condensing of a solar heat can be aimed at by installing a solar water heater in the attic between the ceiling, and it is energy-saving. Effective housing is provided.

  In addition, this invention is not limited to the said embodiment, A various deformation | transformation is possible based on the meaning of this invention, and these are not excluded from the scope of the present invention.

  The present invention relates to a solar heat utilizing house capable of effectively increasing solar heat collection and effectively using solar energy, and has industrial applicability.

DESCRIPTION OF SYMBOLS 1 Building 2 Roof 3 Ceiling 4 Heat insulation layer 5 Living space 6 Light transmission part 8 Air blower part 9 Attic space 10 Solar water heater 10A Hot water tank 10B Heat collector 20 Solar water heater 20A Hot water tank 20B Heat collector 30 Circulation path

Claims (6)

A roof made of acrylic plates covering the top of the building,
A ceiling separating the living space in the building and the roof;
A heat insulating layer formed on the surface of the ceiling;
A solar water heater that is disposed in an attic space that is formed between the ceiling and the roof with a collector and a hot water tank for collecting solar heat;
A delivery pipe for supplying the hot water in the hot water tank into the living space;
Solar thermal housing with A roof made of acrylic plates covering the top of the building,
A ceiling separating the living space in the building and the roof;
A heat insulating layer formed on the surface of the living space in the ceiling;
A solar water heater that includes a heat collector that collects solar heat and a hot water tank, and that arranges the heat collector in an attic space formed between the ceiling and the roof;
A delivery pipe for supplying the hot water in the hot water tank into the living space;
Solar thermal housing with   The said solar water heater connects the said heat collector and the said hot water tank with a circulation path, and heat-exchanges with the stored water of the said hot water tank with the heat medium which flows through the said circulation path. Solar thermal housing.   The solar heat utilization house according to claim 1 or 2, wherein the ceiling is provided with a blower for blowing air from the attic space into the living space.   The solar-heated house according to claim 1, wherein a light-transmitting portion is provided on the ceiling.   The solar heat utilization house according to claim 1 or 2, wherein a transparent heat insulating paint is applied to an inner surface of the roof.

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