JP3032891U - Air-conditioning system using underground heat of a house - Google Patents

Abstract

(57) [Summary] [Purpose] The outdoor warm air in the summer is exchanged with the cold heat in the ground,
In addition, it is a heating and cooling device that uses underground heat in the house that can cool and heat the outside wall of the house by exchanging cold air outdoors in the winter with the heat of the ground, and can cool and heat the inside of the house, thus saving energy costs and energy. [Structure] The heat exchange pipe 1 is buried in the ground by exposing both ends of the pipe to the outdoors and the underfloor space H1, and the outside air is heat-exchanged with the heat exchange pipe 1 and introduced into the underfloor space H1. The outer wall H2 and the back of the roof are lined with a heat insulating material H3 to connect the wall space H5 to the underfloor space H1 and the attic space H6. The outside air introduced by the heat exchange pipe 1 flows through the indoor air introduction pipe 4 to the room H8, and is exhausted to the outside by the first exhaust fan 5 of the attic space H6, and from the underfloor space H1 to the wall space H5. The second exhaust fan 7 in the attic space H6 sucks the indoor circulating air and exhausts it outside the house.

Description

[Detailed description of the invention]

[0001]

[Industrial applications]

 The present invention exchanges warm air outdoors in summer with cold heat in the ground, and heats cold air outdoors in winter with heat in the ground to heat and cool the exterior wall of a house as well as to heat and cool the interior. The present invention relates to a heating and cooling device that uses geothermal heat in a house that can contribute to energy saving at low cost.

[0002]

[Prior art]

 Conventionally, air conditioning of a house is based on an air conditioner that has the functions of air conditioning and heating.Since a system that heats and cools all rooms in a house requires a large amount of electricity, it is extremely adopted in general houses except for hotels and inns. Few. In general houses, it is common to selectively cool or heat one or two rooms by air conditioners installed in each room. However, even if a private room is air-conditioned with an air conditioner, there are many cases in which the air conditioning does not work in the room facing the outer wall where the sun is exposed in the summer, and in the winter, the indoor heating is cooled by the outer wall for effective heating. There are many cases where it does not work. On the other hand, even in general houses, it is preferable to heat and cool all rooms if it is possible to save energy and reduce running costs. Therefore, in the air-conditioning system that does not use an air conditioner that requires electricity or fossil fuels, the temperature of the ground is attracting attention as a heat source that can save energy and reduce running costs. In other words, it is known that there is no fluctuation in the underground temperature throughout the year at a depth of about 1 meter from the general surface. The temperature in the ground at a depth of about 1 meter from the surface is much lower than the warm air outdoors in summer and much higher than the cold air outdoors in winter. Therefore, if the outdoor warm air in the summer is exchanged with the underground heat and the outdoor cold in the winter is exchanged with the underground heat to cool and heat the outer wall of the house and the room, The entire room can be heated and cooled effectively, and even in a room facing the outer wall where the sun shines in the summer, cooling works well, and it can be eliminated that the indoor heating was cooled by the outer wall in the winter, which reduces utility costs. It can contribute to energy saving and low running cost.

[0003]

[Problems to be solved by the invention]

 The present invention was devised in view of the above-mentioned points.In summer, the warm air outdoors exchanges heat with the cold heat in the ground to distribute the cool air to the wall space and indoors, thereby effectively cooling and dehumidifying the entire house. In winter, the cold air in the outside is exchanged with the heat in the ground to distribute the warm air to the wall space and indoors, and the entire house can be effectively heated, the equipment cost can be kept low, energy saving and low running cost can be achieved. The aim is to provide a heating and cooling system that uses the geothermal heat of the house that can contribute to

[0004]

[Means for Solving the Problems]

 As a means for solving the above problems, the present invention exposes one end of a heat exchange pipe made of a mesh pipe to the ground outside the house and the other end of the heat exchange pipe to the underfloor space of the house. The heat exchange pipe is buried in the middle of the heat exchange pipe to the required depth, and the inner surface of the outer wall of the house is lined with a heat insulating material to connect the space with the interior wall to the underfloor space and the space above the ceiling. While connecting one end of the indoor air introduction pipe to the other end of the above and connecting the other end to the inside of the room, the first exhaust fan installed in the attic space sucks the air flowing through the wall space and exhausts it outside the house. One end of the indoor air discharge pipe is connected to the interior of the room, and the other end is connected to the suction port of the second exhaust fan installed in the attic or the ceiling, and the indoor exhaust air is sucked by the second exhaust fan. Characterized by being configured to exhaust to the outside of the house There is provided a geothermal heat air conditioner housing for.

[0005]

【Example】

 FIG. 1 and FIG. 2 show an embodiment of a geothermal heating and cooling device for a house according to the present invention. This underground heat utilizing air conditioner for a house has a filter 2 attached with one end 1a of a heat exchange pipe 1 having a diameter of 200 mm facing the shaded north side of the house H, and the heat exchange pipe 1 The other end 1b of the heat exchange pipe 1 is exposed to the underfloor space H1 of the house H, and the length of the heat exchange pipe 1 is taken into the pipe. The depth of underground temperature (for example, depth of about 1.5 meters in the ground) where there is no seasonal change for more than ~ 30 meters) and where the soil water flows deep underground (because groundwater does not spring up) In the case of moist soil, it is buried in a meandering shape in a separate underdrain pipe installed on the lower side), and the heat insulating material H3 is lined on the inner surface of the outer wall H2 of the house H and the back surface of the house H without any space between them to raise the house H. The outer wall H2 A wall space H5 of 3 to 5 cm between the inner wall H4 is connected to the underfloor space H1, the attic space H6 and the 1F ceiling space H7, and the cross-shaped branch pipe 3 is connected to the other end 1b of the heat exchange pipe 1. Air is supplied from the branch pipe 3 to the underfloor space H1 and the branch pipe 3 and one end 4a of the indoor air introduction pipe 4 which is piped into the wall space H5 are connected to each other to provide a variety of other shapes. The end 4b is communicated with the upper part of all the rooms H8 of 1F and 2F, and the first exhaust fan 5 installed in the attic space H6 sucks the air of the attic space H6 and exhausts it to the outside of the house and from the branch pipe 2 The air flowing to the underfloor space H1 is circulated to the wall space H5 and further to the attic space H6, and the various indoor air discharge pipes 6 are connected to the wall space H5 and the attic space (1F ceiling space) H6 and 1F Anai. Plumbing to the back space H7 One end 6a of the indoor air discharge pipe 6 is connected to the ceiling H8 of all the rooms 1F and 2F, and the other end 6b is connected to the suction port of the second exhaust fan 7 installed in the attic space H6. The second exhaust fan 7 sucks the indoor circulation air and exhausts it to the outside of the house, and at the same time, it is circulated from the indoor air introduction pipe 4 to all indoor floors H8 of 1F and 2F. As the heat exchange pipe 1, an underdrain pipe made of synthetic resin having a porous wall is used. This is because the condensed water generated by cooling the outside air introduced into the heat exchange pipe 1 in the summer is discharged to the ground outside the heat exchange pipe 1. If the heat exchange pipe 1 is a porous underdrain pipe, the heat exchange efficiency is increased by allowing direct heat exchange between the outside air introduced into the heat exchange pipe 1 and the ground temperature during the summer and winter. Will increase. The other end 1b of the heat exchange pipe 1 is exposed to the underfloor space H1 of the house by allowing cold air or warm air to flow from the heat exchange pipe 1 to the underfloor space H1 to cool and heat the floor on the 1st floor. This is because cold or warm air from the pipe 1 is evenly distributed in the wall space H5 between the outer wall H2 and the indoor wall H4 on four sides, and the circulation of warm air down the wall space H5 is avoided. In addition, the first exhaust fan 5 can effectively perform suction and exhaust. The roof is made of steel or plastic roofing material that has a ventilation path that generates air that rises along the slope, and effectively insulates the sun. Since the first exhaust fan 5 and the second exhaust fan 7 operate all day in summer and winter, it is preferable to use a sirocco fan in order to keep quiet.

<Air Flow Due to Operation of First Exhaust Fan 5> The first exhaust fan 5 sucks air in the attic space H6 and discharges it outside the house. For this reason, the air in the wall space H5 and the 1F attic space H7 flows into the attic space H6. Therefore, outside air is taken into the heat exchange pipe 1 through the filter 2, and flows from the branch pipe 2 to the underfloor space H1 and to the wall space H5.

<Air Flow Due to Operation of Second Exhaust Fan 7> The second exhaust fan 7 sucks the air in all the room H8 of 1F and 2F through the indoor air exhaust pipe 5 and exhausts it to the outside of the house. To do. Therefore, air flows from the air introduction pipe 4 into all the rooms H8 of 1F and 2F. Therefore, outside air is taken into the heat exchange pipe 1 through the filter 2.

<Summer Cooling> The first exhaust fan 5 and the second exhaust fan 7 are operated all day long. The underground temperature at a depth of about 1 meter deep in the ground is considerably lower than the outside temperature, and the cold heat in the ground cools the heat exchange pipe 1, so the outside air taken into the heat exchange pipe 1 through the filter 2 ( The warm air is cooled while flowing through the heat exchange pipe 1 and becomes cold air of 18 to 21 ° C. depending on the outside air temperature before reaching the branch pipe 3. At this time, the dew point of the outside air is lowered to cause dew condensation, but the heat exchange pipe 1 is a mesh pipe, and the dew condensation water leaks from the heat exchange pipe 1 and diffuses and permeates underground, so that the humidity of the cool air is lowered. In this way, a part of the cold air whose humidity has decreased flows to the underfloor space H1 and to the wall space H5, so that the floor of 1F and the indoor wall H4 of 1F and 2F are cooled, and at the same time the outer wall H2 and the indoor wall H4 are The air curtain action is generated when the wall space H5 between them is raised, and the heat of the outer wall H2 heated by the strong sunlight is effectively transmitted to the indoor wall H4 through the heat insulating material H3. When the air is cut off and becomes warm, it flows into the attic space H6 without flowing into the room H8, is sucked by the first exhaust fan 5, and is exhausted to the outside. The rest of the cool air, which has been cooled while flowing through the heat exchange pipe 1 and has reached the branch pipe 3 and whose humidity has decreased, flows into all the rooms H8 of 1F and 2F through the air introduction pipe 4 and is highly airtight. -Because it is a highly heat-insulated house, the indoor temperature can be maintained at around 21 to 24 ° C, and is sucked by the second exhaust fan 7 through the indoor air exhaust pipe 5 and exhausted outside the house.

<Winter Heating> The first exhaust fan 5 and the second exhaust fan 7 are operated all day long. The underground temperature at a depth of about 1 meter deep in the ground is much higher than the outside temperature, and the heat in the ground warms the heat exchange pipe 1, so the outside air (cold air taken in the heat exchange pipe 1 through the filter 2 ) Is warmed while flowing through the heat exchange pipe 1, and reaches 13 to 15 ° C according to the outside air temperature before reaching the branch pipe 3. A part of this warm air flows to the underfloor space H1 and to the wall space H5, so that the floor of 1F and the indoor walls H4 of 1F and 2F are heated, and the wall space H5 between the outer wall H2 and the indoor wall H4. When it rises, it causes an air curtain effect, effectively blocking the cold heat of the outer wall H2 cooled by the outside temperature from trying to transfer heat to the indoor wall H4 through the heat insulating material H3, and becomes cold. Then, it flows into the attic space H6 without flowing into the room H8, is sucked by the first exhaust fan 5, and is exhausted to the outside. The rest of the warm air that has been warmed while flowing through the heat exchange pipe 1 and reached the branch pipe 3 flows into all the indoor H8s on the 1st and 2nd floors via the air introduction pipe 4, and in a highly airtight and highly insulated house. Therefore, the indoor temperature can be maintained at 18 to 24 ° C, and the air is sucked by the second exhaust fan 7 through the indoor air exhaust pipe 5 and exhausted to the outside of the house.

In the above embodiment, the air flowing into all the indoor spaces H8 of 1F and 2F is sucked by the second exhaust fan 7 installed in the attic space H6 and exhausted to the outside. Is not limited to this embodiment, and the air flowing into the room H8 on the second floor is sucked out by the second exhaust fan 7 installed in the attic space H6 and exhausted to the outside, and flows into the room H8 on the first floor. The second exhaust fan installed in the above-ceiling space H7 on the first floor may be used to suck the air to be exhausted outdoors. In the present invention, the other end 1b of the heat exchange pipe 1 needs to be exposed to the underfloor space H1 of the house, but the buried portion need not be below the house. In addition, a part (1 meter) of the heat exchange pipe 1 is inserted into an air purifying facility under the ground or under the floor that is filled with charcoal, coconut shell activated carbon, etc. in an exchangeable manner, or the middle of the heat exchange pipe 1 is cut. Then, an air cleaning facility may be interposed therebetween.

[0011]

[Effect of the invention]

 The above-described cooling and heating device for utilizing underground heat of a house according to the present invention has the following effects. In the summer, the warm air outdoors exchanges heat with the cold air in the ground to distribute the cool air indoors, as well as to distribute it to the wall space to effectively block the heat transfer from the outer walls, which effectively protects the entire house. Can be cooled. In the summer, when the outside air is cooled by the heat exchange pipe, the dew point of the outside air falls and condensation occurs, but since the heat exchange pipe is a mesh pipe and the condensation water permeates underground, the cold air flowing in the wall space or the room Humidity is reduced, providing an air-conditioning effect that is easy to spend. In winter, the cold air in the outside is exchanged with the heat in the ground to distribute the warm air indoors, and also to the wall space to effectively block the heat transfer from the outer wall. Can be heated. It is not necessary to cover the air inlet pipe and indoor air exhaust pipe with a heat insulating material to prevent dew condensation in summer. Cool air is distributed to the underfloor space, wall space, and attic space in the summer and warm air in the winter, so the building does not hurt. Since it is sufficient to bury heat exchange pipes, connect air intake pipes and indoor air exhaust pipes, and install first and second exhaust fans, it is more convenient than a system that cools and heats the entire house. Cost can be kept low. Heat exchange pipes that do not require running costs can be used to effectively heat and cool the entire house, and running costs only involve the electricity costs of the first and second exhaust fans. Since it does not require air conditioning, it can contribute to energy saving and low running cost compared to cooling and heating with an air conditioner, electric carpet and oil stove, and it is also environmentally friendly. Since only the first and second exhaust fans are operated, it is possible to secure quietness at bedtime at night. It is possible to install the heating and cooling device using the geothermal heat of the house of the present invention without increasing the dead space of the house and without using the construction method as a special construction method.

[Brief description of the drawings]

FIG. 1 relates to a heating and cooling device using underground heat of a house according to an embodiment of the present invention, (a) is an overall conceptual diagram, and (b) is II in (a).
-II arrow view.

[Explanation of symbols]

 H House H1 Underfloor space H2 Outer wall H3 Insulation material H4 Indoor wall H5 Wall space H6 Attic space H7 Ceiling space H8 Indoor 1 Heat exchange pipe 2 Filter 3 Branch pipe 4 Indoor air introduction pipe 5 First exhaust fan 6 Indoor air exhaust Tube 7 Second exhaust fan

[Procedure amendment]

[Submission date] September 20, 1995

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Name of device

[Correction method] Change

[Correction contents]

[Title of device] Ground heating and cooling system for residential use

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI technical display area F24F 3/00 F24F 3/00 B

Claims (1)

[Utility model registration claims] 1. One end of a heat exchange pipe made of a mesh pipe is exposed to the ground outside the house, and the other end of the heat exchange pipe is exposed to the underfloor space of the house, and the middle of the heat exchange pipe is required underground. Embedded in the inner wall of the house, and the inner wall of the outer wall of the house is lined with a heat insulating material to communicate the space with the interior wall with the underfloor space and the space above the ceiling. The first exhaust fan installed in the attic space sucks the air flowing through the wall space and exhausts it outside the house, and also connects one end of the indoor air discharge pipe to the room. In addition, the other end is connected to the suction port of the second exhaust fan installed in the attic or the ceiling, and the indoor exhaust air is sucked by the second exhaust fan and exhausted outside the house. An air conditioner that uses the geothermal heat of a house.