JP6135907B2 - Earth / Solar system - Google Patents

Description

  Air conditioning system with low energy cost and simple structure to control the room temperature of the house by suppressing the waste of artificial energy such as oil, gas, electricity, etc. About.

  Conventional room temperature adjustment in small houses has been using air conditioners in the summer and cooling and heating using energy such as electricity, gas, and oil in the winter. From the viewpoint, it is an urgent need to reduce CO2 emissions accompanying energy consumption, and reduction of energy consumption and further replacement with natural energy are urgently desired.

  Along with this, as a means of utilizing natural energy, what is currently widely used is a solar water heater (thermal efficiency 50-60%) and solar power generation (conversion efficiency 10-15%) using solar energy. However, in both cases, energy-saving technology that uses only solar energy is easily affected by the weather and cannot be used alone because of instability, and has been used in combination with other energy. There is a need for improvements.

  On the other hand, the underground 4 to 5 m underground maintains a stable temperature throughout the year, so that it is cooler than the outside air in the summer and warmer than the outside in the winter. For this reason, facilities that use geothermal heat have been experimentally constructed in large buildings and public facilities, but the method of use is to preserve the ice made in nature during the winter. In general, it is common to transfer the ice to a heat storage tank in the basement in the summer to make cold water, circulate the cold water to each room and cool it. Therefore, it was necessary to replenish the heat storage layer with ice, which was not suitable for small-scale housing.

Furthermore, a heat pump system that uses geothermal heat is also used to supply hot water in the home and to cool and heat the room, but a horizontal loop system (deep a 1-2 m deep moat in the ground, In order to obtain a heat source for a house with a floor area of 100 m ² , it is necessary to embed a 400 to 600 m heat collecting pipe, and a vertical loop system (ground) 2 holes are needed for digging 50-50m deep wells, and pipes for heat collection are buried in them, and it costs 3 to 5 million yen for general housing, and the heat pump is operated. There was a problem that the cost (electricity cost) was about 75% of that of an electric water heater using midnight power.

  In July 2003, the Building Standards Law was amended to require 24-hour ventilation of the room (to ventilate 0.5 times the volume of the room in one hour) as a “sick house measure”.

Therefore, the present applicant has invented and applied for an “earth / solar system (two-layer type)” described in Patent Document 1 and capable of complying with the Building Standard Law. According to the present invention, two tanks, a water storage tank and a hot water storage tank, are buried in the ground, and heat exchange pipes that communicate with the 24 hour air supply pipes of each room from the outside air intake are provided in both tanks. Plumbing and filling the storage tank with rain water, ground water or tap water, filling the storage tank with hot water from the solar water heater, and operating the opening / closing valve provided in the heat exchange pipe in the summer, in the winter Using cold water in the storage tank that has been cooled with cold outside air, the outside air is passed through the heat exchange pipe in the storage tank, and the hot outside air is cooled and sent to each room, so efficient cold wind operation can be performed I can do it. In the winter season, warm water in the water storage tank that has been warmed by hot outdoor air in the summer is warmed to the low temperature water via the heat exchange vapour. Since it passes through the heat exchange pipe, it became possible to send warm air into each room.
Japanese Patent Application No. 2007-42895

  However, in the invention of Patent Document 1 filed by the present applicant, two tanks, a water storage tank and a hot water storage tank, are required, so the piping becomes complicated, the number of open / close valves increases, and the price increases. A long construction period was also required.

Therefore, the present applicant invented and filed an application of “earth / solar system (single layer type)” described in Patent Document 2. According to the present invention, in the lower part of the building, a concrete tank composed of the foundation and the body of the building is constructed, the heat exchange pipe is piped in the concrete tank, the rain water is laid in the concrete tank, Or, it is filled with tap water or groundwater, and the supply air from the total heat exchange type exhaust fan is led to the heat exchange pipe in the concrete tank, and in the summer, the supply air from the total heat exchange type exhaust fan is cooled by the underground heat. After heat exchange between the water in the concrete tank and the heat exchange pipe, it is cooled and then supplied to each floor via the air supply pipe.In winter, the hot water from the solar water heater is made of concrete. Circulate in the tank to make the concrete tank warm, and supply air from the total heat exchange ventilator to the heat exchange pipe in the concrete tank to heat and heat the concrete tank. After warming to heat exchange with the conversion pipe, by which the air supply to each floor through the supply pipe, it becomes possible to feed the hot air in each room.
Japanese Patent Application No. 2008-134783

  However, in the invention of Patent Document 2 filed by the present applicant, a concrete tank is required in the ground below the building, so that it is expensive and requires a long construction period.

Therefore, the present applicant invented and filed an application of “Earth Solar System (Ground Heat Recovery Pipe System)” described in Patent Document 3. According to the present invention, there is provided a total heat exchange type ventilation fan installed in a room of a building without installing a vent hole to the outside at the foundation of the building and blocking the air inside the first floor under the outside air to be in a sealed state. Fresh outside air supplied to the inside is sent to the inside of the first floor under the building, and a plurality of underground heat recovery pipes with a U-shaped lower part formed on the foundation floor under the first floor, both ends of the floor below the foundation floor. It is buried in the ground so as to protrude into the section, a blower is attached to one end of the underground heat recovery pipe, and the air inside the first floor is sucked into the underground heat recovery pipe by operating the blower, and the underground The air sucked into the heat recovery pipe is warmed in the ground heat recovery pipe by the underground heat in the winter season, and further, the hot water warmed by the solar water heater is circulated in the hot water heat storage tank provided at the bottom of the first floor Let the air inside the first floor under the floor warm, and summer Does not circulate the hot water from the solar water heater in the hot water storage tank provided at the bottom of the 1st floor, and the air cooled by the underground heat recovery pipe is supplied to the inside of the 1st floor under the ground heat. Warm air that is heated slightly in winter by supplying air under the first floor into the ceiling of each floor through the duct, and supplying the air from inside the ceiling to the room from the gallery installed in the ceiling of each room Can be sent to each room, and cool air that has been weakly chilled in the summer can be sent to each room.
Japanese Patent Application No. 2009-158863

  However, even in the invention of Patent Document 3 filed by the present applicant, when the rainy or cloudy day continues, the temperature of the hot water of the solar water heater does not rise, and the temperature difference between the rainy and cloudy day and the sunny day The problem that is large occurred.

Therefore, the present applicant invented and applied for “earth / solar system (ground heat recovery pipe system)” described in Patent Document 4. According to the present invention, in the winter season, a ventilation hole connected to the outside of the building is not installed in the base of the building, and the air inside the first floor is shut off from the outside air to be in a sealed state, and is installed in the building room. Fresh outside air supplied to the indoor side by the indoor ventilation fan is sent to the lower part of the first floor of the building, and a plurality of underground heat recovery pipes with U-shaped lower parts formed on the base floor under the first floor, both ends of the base floor It is buried in the ground so as to protrude below the first floor, and a blower is attached to one end of the underground heat recovery pipe. By operating the blower, the air inside the first floor is sucked into the underground heat recovery pipe. Because it was heated in the underground heat recovery pipe by the underground heat and warmed the air inside the floor under the first floor, and after using the hot water from the solar water heater in the bath, it was poured into the hot water storage tank, Even if it continues to rain or cloudy, 1st floor below It is possible to warm the temperature of the air without relying only on underground heat, and by reusing the energy of the remaining hot water in the warm bath that has been flowing through the drainage drainage, the interior of the floor under the first floor is lightly heated. Warm air can be supplied to each room. Also, in summer, the remaining hot water from the bath is not supplied to the hot water storage tank, and the outside air sent from the total heat exchange ventilator to the interior of the first floor is cooled in the underground heat recovery pipe by underground heat. After being mixed with the air in the lower floor of the first floor, the duct blower provided inside each floor ceiling is operated to send it from the interior under the first floor via the duct to the ceiling interior of each floor and install it on the ceiling. It became possible to cool the room by supplying air to the room.
Japanese Patent Application 2010-56088

  However, even in the invention of Patent Document 4 filed by the present applicant, there remains a problem in the long-term durability of the hot water heat storage tank installed under the floor, and the heating effect is insufficient only with the remaining hot water of the bath and the underground heat in winter. Such a problem occurred.

In addition, in the case of the geopower system described in Patent Document 5, which is conventionally known as a building air-conditioning ventilation system using a geothermal heat exchanger, in the winter season, only the underground heat alone can produce a heating effect (even underground 5m underground). Because the temperature is around 18 degrees, even if the outside air is warmed by underground heat, the temperature is only lower than that) and the price is high, so there was a problem in terms of cost when constructing a general house .
JP2007-303693A

Furthermore, in the case of the OM solar described in Patent Document 6, which is known as a solar system that uses solar energy, the heating effect is reduced when a rainy or cloudy day continues, so an auxiliary heating device is required. There was a problem and the disadvantage that cold wind operation was not possible in summer.
JP 08-005161

  In view of such conventional drawbacks, the present invention aims at harmony with nature, suppresses waste of artificial energy such as oil, gas, electricity, etc., warm remaining hot water in the bath, An object of the present invention is to provide a cooling / heating device that uses ground heat effectively to adjust the room temperature of a house, has low energy costs, and has a simple structure.

  In the invention according to Patent Document 1, Patent Document 2, Patent Document 3, and Patent Document 4 filed by the present applicant, the above-mentioned problem has occurred. Therefore, the Company newly improved the invention of Patent Document 4, In winter, the hot water radiant pipe is made of PVC pipes at a lower cost, while the hot water radiant pipe is used to cool the remaining hot water from the hot water radiant pipe. Was newly developed, and at the same time as filing a patent application for the present invention, this product was launched.

In order to solve this problem, the invention according to claim 1 sends fresh outside air supplied to the room by a total heat exchange type ventilation fan installed in the room of the building to the floor of the first floor of the building and below the floor of the first floor. The bottom of the base plate is 100mm in inner diameter with a U-shaped lower part, and the depth of the PVC heat pipe is 4m deep. By installing the blower at one end of the underground heat recovery pipe and operating it, the air inside the first floor floor is sucked into the underground heat recovery pipe, and the air sucked into the underground heat recovery pipe is In the winter season, warm water radiating pipes are constructed in such a way that they are warmed in the ground heat recovery pipe by ground heat to warm the inside of the first floor under the floor and form a quadrilateral shape along the foundation above the foundation floor under the first floor. Adjust the height of Therefore, the lower part is formed with a flat base and two receiving bolts with threads, a nut is attached to the receiving bolt, and a U-shaped receiving part for receiving the PVC pipe of the hot water radiating pipe on the upper part of the nut. The holes drilled on the left and right sides of the base were inserted into the two receiving bolts, the PVC pipe was placed on the base, and the height of the base was adjusted with the nut so that the PVC pipe was at the same height as the foundation bottom. Then, cover the PVC pipe with a fixed cover that has an inverted U shape and has holes for passing the receiving bolts to the left and right, fix the cradle and the fixed cover with nuts, Connect the inverted U-shaped trap so that the upper part inside the PVC pipe is flush with the lower part inside the inverted U-shaped trap, and connect the end of the inverted U-shaped trap to the drain pipe. Hot remaining hot water of the bath on the heat radiating pipe The hot water stored in the first floor is further warmed, and the air inside the first floor under the warming is supplied to the interior of each floor to warm the room. It is characterized in that the air inside the first floor under the ground heat recovery pipe cooled by the medium heat is supplied to the room of each floor to cool the room.

According to the first aspect of the present invention, fresh outside air supplied to the room by the total heat exchange type exhaust fan mounted in the room of the building is sent to the floor under the first floor of the building. The bottom of the U-shaped 100mm inner diameter PVC pipe with a depth of 4m buried in the ground is buried in the ground so that both ends of the underground heat recovery pipe protrude from the foundation floor into the first floor below. By installing a blower at one end of the intermediate heat recovery pipe and operating it, the air inside the floor under the first floor is sucked into the underground heat recovery pipe, and the air sucked into the underground heat recovery pipe is underground in the winter season. The inside of the ground heat recovery pipe is warmed by heat to warm the interior under the first floor , and the height of the hot water heat radiating pipe configured to be quadrangular along the foundation at the top of the foundation floor under the first floor Flat plate at the bottom The base is made up of two receiving bolts with threads, a nut is attached to the receiving bolt, and a U-shaped receiving base is opened on the left and right sides of the nut to receive the PVC pipe of the hot water radiating pipe Insert the holes into the two receiving bolts, place the PVC pipe on the cradle, adjust the height of the cradle with the nut so that the PVC pipe is at the same height as the foundation bottom, and then turn the U-shaped Then, cover the PVC pipe with a fixed cover with holes for passing the receiving bolts on the left and right sides, fix the cradle and the fixed cover with nuts, and the upper end inside the PVC pipe at the rear end of the hot water radiating pipe However, the reverse U-shaped trap is connected so that it is at the same height as the inside of the top of the inverted U-shaped trap, and the end of the inverted U-shaped trap is connected to the drain pipe. To drain the remaining hot water The air inside the first floor is further warmed, and the air inside the first floor under the above-mentioned warming is supplied to the rooms on each floor to warm the rooms. It is possible to provide a cooling / heating device that consumes less energy and contributes to energy saving by supplying air inside the floor under the first floor cooled in the recovery pipe to the rooms on each floor to cool the rooms. As a result, energy costs (electricity, gas, and kerosene) can be significantly reduced.

Embodiment 1 of the present invention will be described below.
Embodiment 1 of the Invention

  1 to 7 show a first embodiment of the present invention.

  FIG. 1 is a three-dimensional explanatory diagram of a house 1 using the hot water heat radiating pipe 29 and the underground heat recovery pipes 17, 23, 26, and 31 of the present invention. The following describes a residential air conditioning system that uses underground heat and hot remaining hot water from a bath.

  FIG. 1 is a three-dimensional explanatory view of a house 1 incorporating an earth / solar system for easy understanding of the earth / solar system of the present invention. A hot water radiating pipe 29 is installed on the upper part of the base bottom board 10, and an electric switching valve 39 is attached to the drain pipe 41 of the bath 40 to supply the hot remaining water of the bath 40 to the hot water radiating pipe 29. When the remaining hot water is supplied to the hot water radiating pipe 29, the hot remaining hot water of the bath 40 is changed to the hot water radiating pipe by switching the switch (not shown) of the electric switching valve 39 from the direction of the drain pipe 34 to the hot water radiating pipe 29. 29. In addition, at the four corners of the foundation base 10, the lower part of two PVC pipes (4m PVC pipe) is joined with a 90 ° elbow and PVC pipe made of PVC, and the lower part is U-shaped (shown in enlarged view in FIG. 2). The four sets of the underground heat recovery pipes 17, 23, 26, and 31 of the PVC pipe are buried in the ground so that both ends protrude from the foundation bottom 10 to the inside of the first floor floor. A vinyl chloride 90 ° elbow 11 and a 90 ° elbow 13 are attached to the tip of the PVC pipe protruding into the lower floor, and a blower 14 is attached to the tip of the PVC 90 ° elbow 13. Similarly, a PVC 90 ° elbow 19 and a 90 ° elbow 20 are attached to the tip of the PVC pipe protruding from the ground floor of the underground heat recovery pipe 23, and the end of the PVC 90 ° elbow 20 is attached to the tip of the PVC 90 ° elbow 20. A blower 21 is attached. Similarly, a vinyl chloride 90 ° elbow 42 and a 90 ° elbow 43 are attached to the tip of the PVC pipe protruding into the first floor under the ground heat recovery pipe 26, and the vinyl 90 ° elbow 43 is attached to the tip of the PVC 90 ° elbow 43. A blower 44 is attached. Similarly, a polyvinyl chloride 90 ° elbow 35 and a 90 ° elbow 36 are attached to the tip of the PVC pipe protruding from the ground floor of the underground heat recovery pipe 31, and the tip of the PVC 90 ° elbow 36 is attached to the tip of the PVC 90 ° elbow 36. The blower 37 is attached, and the air intake and the air outlet of the 90 ° elbow made of PVC attached to the two PVC pipes constituting the underground heat recovery pipes 17, 23, 26 and 31 are perpendicular to each other. The air discharge ports of the four adjacent ground heat recovery pipes and the air intake ports are arranged so as to face each other.

  Further, the hot remaining hot water after being used in the bath 40 is supplied to an electric switching valve 39 attached to the drain pipe 41 (for draining the drain water in the drain pipe 41 toward the drain pipe 34 or the hot water radiation pipe 29). The hot remaining hot water of the bath 40 flows into the hot water radiating pipe 29 by switching the drainage path switching valve using an electric motor in the direction of the hot water radiating pipe 29 and is stored in the hot water radiating pipe 29 (detailed in FIG. 7). Warm the space under the first floor.

  Furthermore, as shown in FIG. 6, by operating the blowers 14, 21, 37, 44, the air inside the first floor under the suction of the underground heat recovery pipe 17 is indicated by an arrow in the underground heat recovery pipe 17. It flows in the direction of the arrow 15 from the 16 direction, the temperature is adjusted by underground heat, and is discharged to the inside of the first floor below by the blower 14. The air discharged into the first floor under the air in this way is blown in the direction of arrow 18 and mixed with the air inside the first floor under the air to adjust the temperature to be uniform, and again from the 90 ° elbow 19 made of PVC. It is sucked into the underground heat recovery pipe 23, flows through the underground heat recovery pipe 23 from the direction of the arrow 22 to the direction of the arrow 24, is adjusted in temperature by underground heat, and is discharged by the blower 21 to the inside of the first floor below. The air discharged into the first floor under the air in this way is blown in the direction of arrow 28 and mixed with the air inside the first floor under the air to adjust the temperature to be uniform, and again from the 90 ° elbow 35 made of PVC. It is sucked into the underground heat recovery pipe 31, flows through the underground heat recovery pipe 31 from the direction of the arrow 32 to the direction of the arrow 30, is adjusted in temperature by the underground heat, and is discharged to the inside of the first floor below by the blower 37. The air discharged into the first floor under the air in this way is blown in the direction of the arrow 38, mixed with the air inside the first floor under the air and adjusted so that the temperature becomes uniform, and again from the 90 ° elbow 42 made of PVC. It is sucked into the underground heat recovery pipe 26, flows through the underground heat recovery pipe 26 from the direction of the arrow 27 to the direction of the arrow 25, is adjusted in temperature by underground heat, and is discharged to the inside of the first floor below by the blower 44. The air discharged into the first floor under the air is blown in the direction of arrow 9 in this way, mixed with the air inside the first floor under the air, adjusted so that the temperature becomes uniform, and again from the 90 ° elbow 11 made of PVC. It is sucked into the underground heat recovery pipe 17. As described above, the air intakes (90 ° elbows 11, 19, 35, 42 made of PVC) of the underground heat recovery pipes 17, 23, 26, 31 arranged at the four corners of the foundation bottom 10 and the underground heat recovery pipes. By configuring the air outlets (90 ° elbows 13, 20, 36, 43 made of PVC) so as to face each other, the air inside the first floor floor is mixed without being stagnated depending on the location inside the floor, The temperature of the air under the floor is adjusted so as to be uniform at any place.

  Further, by embedding underground heat recovery pipes 17, 23, 26, and 31 in the four corners of the foundation floor 10 below the first floor floor, the mutual heat generated from the underground heat recovery pipes in the underground can be reduced. It is possible to reduce the heat interference between the underground heat recovery pipes. In particular, when underground heat recovery pipes are embedded in a narrow area, the temperature of the underground changes due to heat interference between the underground heat recovery pipes (in the summer, hot underground air is sent to the underground heat recovery pipe In the winter, the cold outside air is sent to the geothermal heat recovery pipe to lower the temperature in the ground, and the merit of the geothermal heat recovery pipe is reduced.

  Thus, it became possible to efficiently collect the underground heat by attaching one blower to each of the underground heat recovery pipes 17, 23, 26, and 31 and recovering the underground heat. Furthermore, by installing one blower independently for each of the underground heat recovery pipes 17, 23, 26, 31, the temperature of the air inside the floor under the first floor is cooled (warm) in the beginning of summer (winter). ) If too much, only several of the four underground heat recovery pipes 17, 23, 26, 31 are operated, and the operation of the other underground heat recovery pipes is stopped, It became possible to adjust the temperature. In our company, the earth / solar system using four sets of underground heat recovery pipes explained in the first embodiment of the present invention is a residential specification with a floor area of up to 40 tsubo, and the floor area of more than that In the case of the above-mentioned housing, the underground heat recovery pipe is added according to the floor area.

  In the present invention, a PVC pipe having an inner diameter of 100 mm is used for the underground heat recovery pipes 17, 23, 26, and 31, and the depth embedded in the underground is about 4 meters. The reason for this is that the standard length of PVC pipe is 4 meters, which is easy to obtain and inexpensive, and the temperature of 4 to 5 meters underground in the Kanto area changes from about 17 to 19 degrees Celsius throughout the year. Because there are few. By the way, at our showroom (with basement) in Oyada, Adachi-ku, Tokyo, we measure underground temperatures of 1 meter, 3 meters and 5 meters every day. The underground temperature is the lowest temperature of 17.1 ° C between May and June, and the highest temperature of 19.3 ° C between November and December. The reason why the minimum temperature of 5 meters underground is from May to June with respect to the lowest ambient temperature (around February) is because it takes time for the temperature of the ground surface to penetrate into the ground. The same applies to the summer season.

  Furthermore, when the underground heat recovery pipes 17, 23, 26, and 31 are buried in the ground, an auger is attached to a small heavy machine (an digging trolley, etc.), and a hole is dug into the ground with the auger. Since the underground heat recovery pipe is embedded, the construction period can be shortened and construction can be performed at low cost.

  In order to prevent moisture from accumulating inside the first floor under the first floor of a general house, the foundation of the foundation and the foundation are ventilated so that the outside air and the air inside the first floor under the floor are always ventilated. Although packing is used, in the present invention, in order to use the interior under the first floor as an outside air temperature adjustment tank, a solid foundation is constructed so that the outside air does not flow directly into the lower floor of the first floor. Use an airtight foundation packing between the foundations so that the interior under the first floor will be in a sealed state without venting to the outside air.

  With the configuration as described above, the low-temperature air operation of the room in winter in FIG. 2 will be described.

  First, in a general method of using a total heat exchange type exhaust fan, fresh outside air that has finished heat exchange inside the total heat exchange type exhaust fan is supplied to the living room. A method for supplying fresh outside air, which has been heat exchanged inside the heat exchange type ventilation fan, to the first floor lower interior 73 will be described. The room-side discharged air (contaminated room air) in the first floor room A is sucked into the total heat exchange type ventilation fan 60 and exhausted from the hood 65 to the outside through the duct 58. At that time, the indoor air exhausted by the total heat exchange type ventilation fan 60 (indoor discharge air) and the outside air supplied to the room from the hood 65 (outdoor suction air) are heated inside the total heat exchange type ventilation fan 60. The outdoor intake air (fresh air) sucked by the total heat exchange type ventilation fan 60 is all supplied to the first floor lower interior 73 via the duct 76. Similarly, the indoor side discharged air (contaminated room air) of the second-floor room B is sucked into the total heat exchange type ventilation fan 54 and exhausted from the hood 56 to the outside through the duct 55. At this time, the indoor air exhausted by the total heat exchanging ventilator 54 (indoor discharge air) and the outside air supplied to the room from the hood 56 (outdoor suction air) are heated inside the total heat exchanging ventilator 54. While being exchanged, all of the outdoor intake air (fresh air) sucked by the total heat exchange type ventilation fan 54 is supplied to the first floor lower interior 73 via the duct 62.

  In this way, by using the total heat exchange type ventilation fans 54 and 60, it is possible to minimize the temperature of the indoor warm air when the indoor warm air in the winter is replaced (ventilated) with the cold outdoor air. It is possible to limit to the limit. By the way, on the Mitsubishi Electric Corporation website, the heat exchange function of LOSSNAY (the product name of the total heat exchange type exhaust fan) is changed to “when the outside air temperature is 0 ° C., the room temperature is 20 ° C., and the temperature exchange efficiency is 75%” It is explained that when air at 0 ° C. is ventilated by LOSSNAY, the temperature of the outside air (0 ° C.) becomes 15 ° C. due to the action of the heat exchanger and is supplied to the room (fresh air).

  Subsequently, the outside air (outdoor air sucked in) from the total heat exchange type ventilation fans 54 and 60 supplied to the first floor underfloor interior 73 in this way is heat-exchanged in the first floor underfloor interior 73 and weakened. Explain whether it will be hot air.

  The outside air from the total heat exchange type ventilation fans 54 and 60 supplied from the ducts 62 and 76 is mixed with the air in the first floor lower interior 73, and the blower 85 attached to the underground heat recovery pipe 84 is operated. The air in the first floor underfloor interior 73 is sucked into the underground heat recovery pipe 84 from the direction of the arrow 83 and is warmed by the underground heat in the underground heat recovery pipe 84 to become low-temperature air. As shown in FIG. Similarly, by operating the blower 89 attached to the geothermal heat recovery pipe 88, the air in the first floor underfloor interior 73 is sucked into the geothermal heat recovery pipe 88 from the direction of the arrow 87, and the geothermal heat recovery pipe. In 88, it is warmed by the underground heat and becomes weakly warm air, and is exhausted by the blower 89 to the first floor lower interior 73 as shown by the arrow 90 direction. Similarly, by operating the blower 93 attached to the underground heat recovery pipe 92, the air in the first floor lower interior 73 is sucked into the underground heat recovery pipe 92 from the direction of the arrow 91, and the underground heat recovery pipe The air is heated by the underground heat in 92 and becomes a low-temperature air, and is exhausted by the blower 93 to the first floor lower interior 73 as shown by the arrow 94 direction. Similarly, by operating the blower 100 attached to the underground heat recovery pipe 96, the air in the first floor lower interior 73 is sucked into the underground heat recovery pipe 96 from the direction of the arrow 95, and the underground heat recovery pipe In 96, it is warmed by the underground heat and becomes a low-temperature air, and is exhausted by the blower 100 to the first floor lower interior 73 as shown by the arrow 101 direction.

  Further, in the winter season, the hot remaining hot water after being used in the bath 77 is switched to flow to the hot water heat radiating pipe 72 indicated by the arrow 79 by the electric switching valve 78, so that the hot remaining hot water of the bath 77 is heated to the hot water radiating pipe. 72 is hot water. In this way, the air in the first floor floor interior 73 is warmed by the remaining hot water of the warm bath 77 stored in the hot water radiating pipe 72. The length of the hot water radiating pipe 72 is determined based on the amount of hot water in the bathtub 77 of the bath 77, so that the hot remaining hot water in the bath 77 can be used without waste, and the hot water radiating pipe 72 overflows. The remaining hot water of the cold bath in the hot water radiating pipe 72 is pushed out by the remaining hot water of the warm bath 77, flows from the direction of the arrow 81 in the direction of the arrow 82, and is drained into the drainage groove 102. By configuring in this way, the cold remaining hot water in the hot water radiating pipe 72 is always pushed out, and the hot water radiating pipe 72 is filled with the remaining hot water in the warm bath 77.

  In this way, the hot remaining hot water after being used in the bath 77 is caused to flow through the hot water heat radiating pipe 72 installed on the foundation bottom 70 in the first floor under floor 73 to be stored in the hot water, so that the underground heat recovery pipe 84 is stored. , 88, 92 and 96, the air in the first floor lower interior 73 heated by the underground heat is further heated by the hot remaining hot water of the bath 77 in the hot water radiating pipe 72.

  In this way, the outside air that has become warm air in the first floor under floor 73 warms the first floor room A by warming the first floor, and the air in the first floor under floor 73 that has become warm air is By operating the blower 69 attached under the first floor, air is supplied from the gallery 68 in the direction of the arrow 67 to warm the first floor room, and further the duct 109 blower is piped from the first floor lower interior 73 to the second floor. By operating 106, the warm air in the first floor under floor 73 is supplied in the direction of arrow 63 from the gallery 110 through the duct 109 to warm the second floor room B.

  In this way, in the winter season, the hot remaining hot water after being used in the bath 77 flows into the hot water heat radiating pipe 72 installed on the upper part of the foundation bottom 70 in the first floor under floor 73 so as to store hot water. Even if the day continues, the air in the first floor under floor 73 heated by the underground heat in the underground heat recovery pipes 84, 88, 92, and 96 is further left in the warm bath in the hot water radiating pipe 72. It is possible to warm the room with hot water and supply air to the room A on the first floor and the room B on the second floor as low-temperature air.

  Next, a description will be given of the operation of the cool air in the room in summer in FIG.

  First, in a general method of using a total heat exchange type exhaust fan, fresh outside air that has finished heat exchange inside the total heat exchange type exhaust fan is supplied to the living room. A method for supplying fresh outside air, which has been heat exchanged inside the heat exchange type ventilation fan, to the first floor lower interior 73 will be described. The room-side discharged air (contaminated room air) in the first floor room A is sucked into the total heat exchange type ventilation fan 60 and exhausted from the hood 65 to the outside through the duct 58. At that time, the indoor air exhausted by the total heat exchange type ventilation fan 60 (indoor discharge air) and the outside air supplied to the room from the hood 65 (outdoor suction air) are heated inside the total heat exchange type ventilation fan 60. While being exchanged, all of the sucked outdoor outside air (fresh air) is supplied to the first floor lower interior 73 via the duct 76. Similarly, the indoor side discharged air (contaminated room air) of the second-floor room B is sucked into the total heat exchange type ventilation fan 54 and exhausted from the hood 56 to the outside through the duct 55. At that time, the indoor air exhausted by the total heat exchanging ventilator 54 (indoor discharge air) and the outside air supplied to the room from the hood 56 (outdoor suction air) are heated in the total heat exchanging ventilator 54. While being exchanged, all of the sucked outdoor outdoor air (fresh air) is supplied to the first floor lower interior 73 via the duct 62.

  In this way, by using the total heat exchange type ventilation fans 54, 60, when the cool indoor air in the summer is replaced (ventilated) with the hot outdoor air, the rise in the temperature of the cool indoor air is minimized. It is possible to limit to the limit.

  Subsequently, the outside air (outdoor air sucked in) from the total heat exchange type ventilation fans 54 and 60 supplied to the first floor underfloor interior 73 in this way is heat-exchanged in the first floor underfloor interior 73 and weakened. Explain whether it will be cold. The outside air from the total heat exchange type ventilation fans 54 and 60 supplied from the ducts 62 and 76 is mixed with the air in the first floor lower interior 73, and the blower 85 attached to the underground heat recovery pipe 84 is operated. The air in the first floor underfloor interior 73 is sucked into the underground heat recovery pipe 84 from the direction of the arrow 83, is cooled by underground heat in the underground heat recovery pipe 84 and becomes weak cold air, and is blown by the blower 85 in the direction of the arrow 86. As shown, it is exhausted into the first floor under floor interior 73. Similarly, by operating the blower 89 attached to the geothermal heat recovery pipe 88, the air in the first floor underfloor interior 73 is sucked into the geothermal heat recovery pipe 88 from the direction of the arrow 87, and the geothermal heat recovery pipe. In 88, it is cooled by underground heat to become weak cold air, and is exhausted from the blower 89 to the first floor lower interior 73 as indicated by the arrow 90 direction. Similarly, by operating the blower 93 attached to the underground heat recovery pipe 92, the air in the first floor lower interior 73 is sucked into the underground heat recovery pipe 92 from the direction of the arrow 91, and the underground heat recovery pipe The air is cooled by underground heat in 92 and becomes weak cold air, and is exhausted from the air blower 93 to the first floor lower interior 73 as indicated by the arrow 94 direction. Similarly, by operating the blower 100 attached to the underground heat recovery pipe 96, the air in the first floor lower interior 73 is sucked into the underground heat recovery pipe 96 from the direction of the arrow 95, and the underground heat recovery pipe In 96, it is cooled by underground heat to become weak cold air, and is exhausted by the blower 100 to the first floor lower interior 73 as indicated by the arrow 101 direction.

  In this way, the outside air that has become weak air in the first floor under floor 73 cools the first floor room A by cooling the first floor, and the air in the first floor under floor 73 that has become weak air is 1 By operating the blower 69 attached under the floor, the air is supplied to the first-floor room A as shown by the arrow 67 in the direction of the arrow 68 and cools the first-floor room. Further, by operating the blower 106 attached to the duct 109 piped from the first floor under floor 73 to the second floor, the cool air in the first floor under floor 73 passes through the duct 109 from the gallery 110 in the direction of the arrow 63. As shown, the second floor room B is supplied with air and the second floor room B is cooled.

  In summer, the electric switching valve 78 is switched, and the remaining hot water in the bath 77 is drained in the direction of the arrow 115, so that the hot water radiating pipe 72 installed on the upper part of the foundation bottom 70 in the first floor under floor 73 is connected to the hot water radiating pipe 72. The remaining hot water is not supplied, and the hot water radiating pipe 72 is not used in the summer.

  FIG. 4 shows a state in which the house 52 in the present invention is constructed (configured) with a next-generation energy-saving heat insulating material. Regarding the heat insulation of the roof, the roof heat insulating material 120 (generally, urethane foam having a thickness of 160 mm) is applied to the attic side. Regarding the heat insulation of the outer wall, an outer wall heat insulating material 121 (generally, foamed urethane having a thickness of 75 mm) is applied inside the wall. For the window sash, a heat insulating resin sash 122 of heat insulation grade 4 (next generation energy saving type) sold by each company is used. For heat insulation of the foundation, after applying non-foundation heat insulation 123 (generally, a 50 mm thick expanded polystyrene board) to the outside of the foundation concrete, non-shrinkable concrete is applied to the outside of the expanded polystyrene board to a thickness of 10 to 20 mm. To do. However, regarding the type and material of the heat insulating material written here, for example, even if it is a polystyrene plate, the heat insulating effect changes due to the difference in density, so even the same manufacturer changes the thickness depending on the density There is a case. In the next-generation energy-saving type housing, heat insulating material is installed under the first floor, under the first floor, and under the second floor. In the present invention, the temperature in each room of the house is as uniform as possible. Therefore, no heat insulation material is applied to the first floor under the first floor, the first floor ceiling, and the second floor ceiling. Regarding the heat insulation performance of the house 52 in the present invention, in order to obtain the maximum energy saving effect, the next-generation energy-saving type heat insulation described with reference to FIG.

  Next, the function of the total heat exchange type ventilation fan 132 and the installation location of the total heat exchange type ventilation fan 132 will be described with reference to FIG.

  As shown in FIG. 5 b, an indoor air intake 131 is provided on the lower surface of the total heat exchange type exhaust fan body 126, and the indoor air sucked from the indoor air intake 131 passes through the exhaust pipe 130. Then, the exhaust air is exhausted in the direction of the exhaust air 129 (outside the room). At that time, the total heat exchange type exhaust fan 132 passes through the indoor air exhausted by the total heat exchange type exhaust fan 132 and the outside air intake pipe 127. Heat is exchanged with the outside air 128 sucked into the total heat exchange type exhaust fan main body 126, and the sucked outside air 128 is branched into four air supply pipes 134 to be supplied 133 to each room. Composed.

  As shown in FIG. 5a (denoted by the same reference numerals as those described in FIGS. 2 and 3), the total heat exchange type exhaust fan 132 configured in this manner is provided on the ceiling portion of the first floor as shown in FIG. 5b is installed, and the total heat exchange type ventilation fan 60 is operated, so that the room air in the room A flows into the corridor E from the direction of the arrow 74 and the total heat exchange type ventilation fan 60. The indoor air sucked in is exhausted to the outside of the room through the duct 58, and heat is exchanged with fresh outside air in the total heat exchange type ventilation fan 60. All the supply air is routed through the duct 76. It is supplied to the first floor under floor 73. Similarly, the total heat exchange type ventilation fan 54 (the same product as the total heat exchange type ventilation fan 132 described with reference to FIG. 5B) is attached to the ceiling portion of the second floor, and the total heat exchange type ventilation fan 54 is operated, thereby Air flows into the corridor D from the direction of the arrow 59 and is sucked into the total heat exchange type ventilation fan 54. The sucked indoor air is exhausted to the outside through the duct 55, and the outdoor air sucked from the hood 56 is totally heat exchanged. Heat is exchanged inside the mold ventilation fan 54, and all the outside air is supplied to the first floor lower interior 73 via the duct 62. The fresh outside air supplied to the first floor lower interior 73 in this way is, as described with reference to FIGS. 2 and 3, from the first floor lower interior 73 via the duct and the gallery to the first floor room A, the second floor. Is in the room B. In this way, by installing one total heat exchange type ventilation fan on each floor, it is possible not only to adjust the room temperature of the whole building, including the hallway, but also to clean the filter. You will only need to clean the table.

  FIG. 7 shows the hot water radiating pipe 29 installed on the upper part of the foundation bottom board 10 demonstrated in FIG. The hot water radiating pipe 29 is installed at the upper part of the foundation bottom 10 inside the first floor as described with reference to FIGS. 1 to 3 so as to have a rectangular shape along the foundation so as to uniformly warm the inside of the first floor. In order to adjust the height of the hot water radiating pipe 29, as shown in FIG. 7b, the lower part is formed by a flat pedestal 159 (steel plate) and two receiving bolts 156 having a thread 154. A nut 155 is attached to the bolt 156, and a hole formed on the left and right sides of a U-shaped receiving base 158 for receiving the PVC pipe 148 of the hot water radiating pipe 29 is inserted into the two threads 154 at the top of the nut 155. In order to place the PVC pipe 148 on the cradle 158 and align the height from the foundation bottom 10 to the PVC pipe 148, the height of the cradle 158 is adjusted with the nut 155, and the PVC pipe 148 is After the height is adjusted to the same height, a fixed cover 157 having a reverse U-shape and a hole 139 through which the receiving bolt 156 is passed to the left and right is covered with a PVC pipe 148 and a receiving base 158 with a nut 153. The fixed cover 157 is fixed. In this manner, by supporting the PVC pipe 148 of the hot water radiating pipe 29 with the plurality of pipe fixing bases 150, the inclination of the hot water radiating pipe 29 can be adjusted horizontally, and the hot remaining hot water of the bath 40 can be adjusted. It became possible to stay in the hot water radiating pipe 29 without being biased.

  Furthermore, a vinyl chloride cap 145 and a vinyl chloride cap 146 are attached to both ends of the vinyl chloride pipe 148 disposed on the upper portion of the foundation bottom board 10, and both ends of the vinyl chloride pipe 148 are closed, and the distal end portion of the hot water radiating pipe 29 into which the drainage of the bath 40 flows. As shown in FIG. 7c, the electrical switching valve 39 is adjusted so that the height of the bottom of the drain of the electrical switching valve 39 is the same as the height of the bottom of the PVC pipe 148. By connecting with the connection pipe 160, the drainage of the bath 40 can smoothly flow into the hot water radiation pipe 29. Further, the rear end portion of the hot water radiating pipe 29 has an inverted U-shaped trap 141 such that the upper part inside the PVC pipe 148 is flush with the lower part inside the apex of the inverted U-shaped trap 141 as shown in FIG. By connecting the drain pipe 34 and the PVC pipe 148 with an inverted U-shaped trap 141, the remaining hot water of the warm bath 40 flowing out of the bath 40 becomes the remaining hot water of the cooled bath 40 in the hot water radiation pipe 29. The remaining hot water of the bath 40 which has been pushed out from the inverted U-shaped trap 141 and is cooled is drained into the drain groove 33 via the drain pipe 34, and the remaining hot water of the warm bath 40 is stored in the PVC pipe 148.

The second embodiment of the present invention will be described below.
[Embodiment 2 of the Invention]

  8 and 9 show a second embodiment of the present invention. In the first embodiment of the present invention, when the air inside the first floor under floor 73 is supplied to the first floor room A in any season of FIG. 2 (winter) and FIG. 3 (summer), A hole 68 is opened, and a gallery 68 is attached to the upper floor of the hole. A blower 69 is attached to the inside of the hole under the hole, and the air in the first floor underfloor interior 73 is supplied to the first floor room A by operating the blower 69. Further, when the air in the first floor under floor 73 is supplied to the second floor living room B, the duct 109 is attached from the first floor under floor 73 to the second floor, and the gallery 110 is attached to the second floor of the duct 109. At the same time, the blower 106 is attached to the first floor underfloor interior 73, and the air in the first floor underfloor interior 73 is supplied to the second floor living room B by operating the blower 106. 2, as shown in FIG. 8 and FIG. A duct 191 communicating from the room 88 to the room D on the first floor and the room E on the second floor is attached, and a fan 190 and a gall 189 are attached to the lower part of the ceiling of the room D on the first floor of the duct 191, and the room on the second floor of the duct 191 A blower 192 and a gallery 193 are attached to the lower part of the ceiling of E, and the blowers 190 and 192 are operated so that the air in the interior 188 under the first floor is supplied to the room D on the first floor and the room E on the second floor. .

  With this configuration, air in the first floor underfloor interior 188 is supplied from the lower ceiling of the first floor room D and the second floor room E via the duct 191 in the summer cold air operation shown in FIG. By supplying weak cold air from the ceiling portion of the room toward the floor, the cooling effect is further increased and the room can be efficiently cooled. In this way, when the air in the interior 188 under the first floor is supplied to the first-floor room D and the second-floor room E via the duct 191 in the summer, the gallery 175 and the second floor of the first-floor room D A lid is attached to the gallery 194 of the living room E, and the operations of the blower 176 and the blower 186 are stopped.

  Further, as shown in FIG. 8, the air in the first floor underfloor interior 188 is supplied to the first floor living room D and the second floor living room E by operating the blower 176 and the blower 186 in the first floor underfloor interior 188 in winter. In this case, a lid is attached to the gallery 189 of the first floor room D of the duct 191 and the gallery 193 of the second floor room E, and the operations of the blower 190 and the blower 192 are stopped. As described above, when the air in the interior 188 under the first floor is supplied to the room D on the first floor and the room E on the second floor, the reason for changing the position of the louver supplied in the summer and winter is that the hot air is higher than the room temperature. This is because the air rises and the cold air descends. Other structures are the same as those of the first embodiment of the present invention.

  Finally, in the case of custom-built homes equipped with an earth / solar system that we sell, various variations (for example, wanting to strengthen heating in the winter season) take into account cost-effectiveness. We are selling earth solar systems that combine solar heat collectors installed on the roof, underground heat recovery pipes that are buried in the ground and use geothermal heat, and hot water radiation pipes that use the remaining hot water in the bath) . The earth solar system in the present invention is one of the products (variations).

  As described above, the earth / solar system according to the present invention has been described in detail on the basis of the embodiment. However, the present invention is not limited to the above embodiment, and the scope of the invention is not deviated. It goes without saying that various modifications are included in the technical scope of the present invention.

  In FIG. 1, it has been described that the electric switching valve 39 is used to switch the remaining hot water of the bath 40 from the drain pipe 41 to the hot water radiating pipe 29, but not only the electric switching valve 39 but also a mechanical switching valve, an electromagnetic type Of course, it is possible to use a switching valve or a manual switching valve.

  8 and 9, one blower 190 and one blower 192 are attached to the first-floor room portion and the second-floor room portion of the duct 191, respectively. To reduce costs, the first-floor blower 190 and the second-floor room are provided. Of course, it is also possible to remove the blower 192 and attach a single blower to the air intake port of the interior 188 under the first floor of the duct 191 to supply air to the first-floor room and the second-floor room at the same time.

It is a three-dimensional view of the earth solar system based on Embodiment 1 of this invention. FIG. 3 is a low-temperature air system diagram of an earth solar system using a total heat exchange type ventilation fan, a ground heat recovery pipe, and a hot water radiation pipe in a winter sectional view of the house according to the embodiment. FIG. 4 is a system diagram showing a weak cold wind of an earth solar system using a total heat exchanging ventilation fan and a ground heat recovery pipe in a sectional view of a house in summer, according to the same embodiment. It is sectional drawing of the state which constructed the roof heat insulating material, the outer wall heat insulating material, the heat insulation resin sash, and the foundation outer heat insulating material to the house based on the embodiment. It is sectional drawing of a house which showed the place which installs the total heat exchange type exhaust fan only for ceiling mounting based on the embodiment. It is the perspective view explaining the flow of the air of a underground heat recovery pipe and the 1st floor underfloor space based on the embodiment. It is a perspective view of the warm water heat radiating pipe for storing the hot water of the bath based on the embodiment. It is house sectional drawing which shows the supply path | route of the low temperature air for warming a living room based on Embodiment 2 of this invention in winter. It is a house sectional view showing an air supply route of weak cold air for cooling a living room in the summer according to the embodiment.

DESCRIPTION OF SYMBOLS 1 House 2 Roof 3 Hood 4 Arrow 5 Outside air introduction duct 6 Duct 7 Arrow 8 Arrow 9 Arrow 10 Foundation bottom board 11 90 ° elbow 12 Foundation 13 90 ° elbow 14 Blower 15 Arrow 16 Arrow 17 Ground heat recovery pipe 18 Arrow 19 90 ° Elbow 20 90 ° elbow 21 Blower 22 Arrow 23 Geothermal recovery pipe 24 Arrow 25 Arrow 26 Geothermal recovery pipe 27 Arrow 28 Arrow 29 Hot water radiating pipe 30 Arrow 31 Geothermal recovery pipe 32 Arrow 33 Drain groove 34 Drain pipe 35 90 ° elbow 36 90 ° elbow 37 Blower 38 Arrow 39 Electric switching valve 40 Bath 41 Drain pipe 42 90 ° Elbow 43 90 ° Elbow 44 Blower 45 Water supply pipe 46 Bath water heater 51 Solar 52 House 53 Roof 54 Total heat exchange type exhaust fan 55 Duct 56 Hood 57 Arrow 58 Duct 59 Arrow 60 Total heat exchange ventilation 61 arrow 62 duct 63 arrow 64 arrow 65 hood 66 arrow 67 arrow 68 louver 69 blower 70 foundation bottom 71 71 foundation 72 warm water radiating pipe 73 first floor under floor 74 arrow 75 arrow 76 duct 77 bath 78 electric switching valve 79 arrow 80 arrow 81 arrow 82 Arrow 83 Arrow 84 Geothermal recovery pipe 85 Blower 86 Arrow 87 Arrow 88 Geothermal recovery pipe 89 Blower 90 Arrow 91 Arrow 92 Geothermal recovery pipe 93 Blower 94 Arrow 95 Arrow 96 Geothermal recovery pipe 97 PVC pipe 98 Elbow 99 PVC pipe 100 Blower 101 Arrow 102 Drainage channel 103 Water supply 104 Arrow 105 Water supply pipe 106 Blower 107 Bath water heater 108 Arrow 109 Duct 110 Galley 115 Arrow 120 Roof heat insulating material 121 Outer wall heat insulating material 122 Heat insulating resin sash 123 Basic outer heat insulating material 26 Total heat exchange type exhaust fan body 127 Outside air intake pipe 128 Outside air 129 Exhaust pipe 130 Exhaust pipe 131 Indoor air intake port 132 Total heat exchange type exhaust fan 133 Supply air 134 Supply pipe 139 Hole 140 Arrow 141 Reverse U-shaped trap 142 Arrow 143 arrow 144 arrow 145 PVC cap 146 PVC cap 147 arrow 148 PVC pipe 149 elbow 150 pipe fixing base 151 arrow 152 arrow 153 nut 154 thread 155 nut 156 receiving bolt 157 fixing cover 158 receiving base 159 base 160 connecting pipe 161 roof 162 Total heat exchange type exhaust fan 163 Duct 164 Arrow 165 Duct 166 Total heat exchange type exhaust fan 167 Duct 168 Hood 169 Arrow 170 Hood 171 Arrow 172 Arrow 173 Duct 174 Arrow 175 Garage 176 Machine 177 Geothermal recovery pipe 178 Blower 179 Geothermal recovery pipe 180 Blower 181 Geothermal recovery pipe 182 Blower 183 Geothermal recovery pipe 184 Blower 185 Arrow 186 Blower 187 Duct 188 First floor underfloor space 189 Garage 190 Blower 191 Duct 192 Blower 193 Garage 194 Garage 195 Arrow 196 Arrow 197 Arrow 198 Arrow

Claims (1)

A fresh heat that is supplied to the room by a total heat exchange type ventilation fan installed in the room of the building sends the fresh air outside the floor of the first floor of the building . Embed both ends of the ground heat recovery pipe of the PVC pipe with a depth of 4 meters embedded in the ground so that it protrudes from the foundation bottom to the bottom of the first floor, and attach a blower to one end of the ground heat recovery pipe. By operating, the air inside the floor under the first floor is sucked into the underground heat recovery pipe, and the air sucked into the underground heat recovery pipe is warmed in the underground heat recovery pipe by the underground heat in winter. In order to warm the interior of the first floor under the floor and adjust the height of the hot water radiating pipe configured to form a square shape along the foundation at the top of the foundation floor under the first floor, the lower part is a flat plate base and screw thread There are two receiving Forming a bolt, attached to the nut to the receiving bolt is inserted into the right and left cradle in which the U-shaped for receiving the PVC pipe for hot water radiating pipe to the top of the nut to open only hole to two receiving bolts, After placing the PVC pipe on the cradle and adjusting the height of the cradle with the nut so that the PVC pipe is at the same height as the base bottom, make a reverse U shape and pass the receiving bolt to the left and right Cover the PVC pipe with the fixed cover with holes, fix the cradle and the fixed cover with nuts, and the upper part of the PVC pipe at the rear end of the hot water radiating pipe is inside the apex of the inverted U-shaped trap. By connecting an inverted U-shaped trap so that it is at the same height as the lower part, connecting the end of the inverted U-shaped trap to a drain pipe, and flowing hot hot water from the bath into the hot water radiating pipe, Air inside the first floor The first floor is warmed and warmed in this way by supplying the air inside the floor under the first floor to the interior of each floor, and in the summer, it is cooled in the underground heat recovery pipe by underground heat. Earth / solar system characterized by cooling the room by supplying the air inside the floor to the room on each floor.

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