JP5898754B1 - Floor support and building air conditioning system - Google Patents

Abstract

[Purpose] Incorporates geothermal heat without significantly increasing the material cost and work burden during construction, and exchanges the captured geothermal heat with the air in the underfloor space. Provided is a building air-conditioning system using geothermal heat that can be supplied indoors, and a floor support that can be used therefor. [Configuration] A floor support formed of a material having good thermal conductivity and supporting the floor of a building with respect to the ground, and extending from the ground surface to a depth of at least 80 cm in the underground direction. And a ground-side support portion extending upward from the ground or the concrete layer on the ground constituting the bottom side of the under-floor space to the floor in an integrated manner or connected to each other so as to be capable of conducting heat Is the body. Moreover, it is a building air conditioning system which uses such a floor support. [Selection] Figure 1

Description

  The present invention relates to a floor support that supports a floor made of floor boards and the like, and a building air conditioning system using the same.

  Conventionally, a system has been proposed in which underground heat is collected by a pipe buried in the ground and used for air conditioning of a house. For example, in Patent Document 1, a heat collecting pipe having a lower portion embedded in the ground and an upper portion disposed indoors, the underground heat collected in the lower portion of the heat collecting pipe is converted into the heat collecting pipe. There has been proposed an air conditioning system that exchanges heat with indoor air via an upper portion. Moreover, in patent document 2, the heating system provided with the heat collecting pipe by which the lower part is arrange | positioned in the heat storage layer in the ground, and the upper part was connected so that heat conduction was possible with respect to the floor was proposed.

JP 2014-105988 A Japanese Patent No. 3838194

  However, the air conditioning or heating system using the heat collecting pipe shown in Patent Documents 1 and 2 above both specially prepares a plurality of heat collecting pipes for capturing underground heat or heat in the heat storage layer, And since they had to be specially constructed so that they were connected indoors or between the floor and the ground, the problem was that the material cost for the building air conditioning system and the work burden during construction would increase significantly. was there.

  The present invention has been made by paying attention to such problems of the prior art, and it takes in geothermal heat without significantly increasing the material cost and work burden during construction, The ground heat can be used to exchange heat with the air in the underfloor space and supply the heat-exchanged air into the room, that is, to realize a building air conditioning system that uses the ground heat. An object of the present invention is to provide a building air conditioning system and a floor support used therefor.

  A floor support according to the present invention for solving the above-described problems is a floor support that is formed of a material having good thermal conductivity and supports a building floor (a floor made of floorboards) with respect to the ground. A ground side heat collecting part extending from the ground surface to a depth of at least 80 cm in the underground direction, which forms a ground side heat collecting part that takes in the ground heat from the ground, and a bottom side of the underfloor space. A ground-side support that extends upward from the ground or a concrete layer on the ground to the floor, and conducts underground heat taken in by the underground-side heat collecting unit to air or a heat storage body in the under-floor space via itself. The ground side support portions to be formed are integrally formed with each other.

  The floor support according to the present invention is a floor support that is formed of a material having good thermal conductivity and supports a building floor (a floor made of a floorboard or the like) with respect to the ground, from the ground surface to the ground. A ground side heat collecting part that extends to a depth of at least 80 cm in the direction and takes in the ground heat from the ground, and the ground or the concrete layer on the ground constituting the bottom side of the underfloor space A ground-side support that extends to the floor in the upward direction and that conducts the underground heat taken in by the underground heat collection unit to the air in the underfloor space or the heat storage body through itself, They are connected to each other by a connecting portion so as to be able to conduct heat.

  In the floor support according to the present invention, the ground side support part or the underground side heat collecting part is moved in the underground direction by a load from the floor. A fixing portion for fixing to the ground may be provided so as not to occur.

  In the floor support according to the present invention, a heat storage body that holds heat conducted from the ground-side support portion may be disposed in the underfloor space.

  In the floor support according to the present invention, the heat storage body may be a number of grits or crushed stones filled in the underfloor space.

  Further, in the floor support according to the present invention, at least one of the ground side support part and the underground side heat collecting part has a polygonal cross section in a direction orthogonal to the longitudinal direction as a whole or a shape approximate to this. It may be formed.

  Further, in the floor support according to the present invention, at least one of the ground side support part and the underground side heat collecting part is generally circular, polygonal or approximate in cross section in a direction perpendicular to the longitudinal direction. It may be formed so that the outline has a plurality of arcs such as wavy lines or a plurality of polygonal lines such as zigzags.

  Further, in the floor support according to the present invention, at least one of the ground side support part and the underground side heat collecting part has a circular cross section and / or a large number of cross sections in the direction orthogonal to the longitudinal direction as a whole. A plurality of squares may be formed in a combined shape.

  Moreover, in the floor support body by this invention, the several fin which protrudes outside from the said ground side support part may be provided.

  Furthermore, the building air conditioning system using geothermal heat according to the present invention is a floor support that is formed of a material having good thermal conductivity and supports the floor of the building (floor made of floorboards) with respect to the ground. A ground side heat collecting part extending from the ground surface to a depth of at least 80 cm in the ground direction, and taking in the ground heat from the ground, and the ground constituting the bottom side of the underfloor space or A ground-side support portion that extends upward from the concrete layer on the ground to the floor, and transmits the underground heat taken in by the underground-side heat collecting portion to the air or the heat storage body in the under-floor space via itself. A floor support formed integrally with each other or connected to each other by a connecting portion so as to be capable of conducting heat, and an air supply portion for supplying air in the underfloor space to the interior of the building. It is provided.

  As described above, in the present invention, the floor support that supports the floor of the building with respect to the ground is supported on the ground side extending upward from the ground constituting the bottom side of the underfloor space or the concrete layer on the ground to the floor. And the underground side heat collecting portion extending from the ground surface to the depth of at least 80 cm in the underground direction are integrally formed with each other. Therefore, according to this invention, the said underground side heat collecting part is added to the said ground side support part (upper part of the said floor support body) substantially the same as the floor support body (bundle) used conventionally. In addition, the ground-side support portion (upper portion of the floor support), which is substantially the same as a conventionally used floor support (bundle), is installed between the ground or a concrete layer and the floor. Just by adding the work to embed the middle heat collecting part in the ground, that is, without significantly increasing the material cost and the work burden during construction, It is possible to realize a building air conditioning system using underground heat in which heat is exchanged with the air in the space, and the heat-exchanged air is supplied into the room. In the present invention, the underground heat collecting section is configured to “extend from the ground surface to a depth of at least 80 cm or more in the underground direction” if the formation is deeper than at least about 80 cm from the ground surface. (It is difficult to maintain a nearly constant temperature throughout the year because it is relatively affected by the surface temperature in shallow strata portions less than about 80 cm from the ground surface.) .

  Further, in the present invention, when the ground side support part and the underground side heat collecting part constituting the floor support are separate from each other, and can be connected to each other through the connection part so as to be thermally conductive, Construction work such as mounting to the ground and floor of the floor support consisting of the above ground side support part and underground side heat collecting part and embedding in the ground, simplifying and improving efficiency, more work burden of construction It becomes possible to reduce more.

  Further, in the present invention, when the ground side support part or the underground side heat collecting part is provided with a fixing part that fixes the ground side heat collecting part to the ground, the ground side support part or the underground side heat collecting part is separated from the floor. It is possible to prevent sinking in the underground direction due to the load.

  Further, in the present invention, when a plurality of heat storage bodies that retain heat conducted from the ground-side support portion are disposed in the underfloor space, for example, when a large number of grits or crushed stones are filled in the underfloor space. The underground heat collected by the underground side heat collecting section of the floor support is conducted and held in the heat storage body such as the grindstone or crushed stone, thereby the underground heat and air in the underfloor space. The heat exchange can be performed more efficiently.

  Further, in the present invention, at least one of the ground side support part and the underground side heat collecting part is formed so that a cross section in a direction orthogonal to the longitudinal direction thereof has a polygonal shape or a shape approximate to this as a whole. Since the surface area of the floor support can be increased, the underground heat collection by the underground side heat collection unit or the underground heat by the underground side heat collection unit and the air in the underfloor space Alternatively, heat exchange with the heat storage body can be performed more efficiently.

  Further, in the floor support according to the present invention, at least one of the ground side support part and the underground side heat collecting part is generally circular, polygonal or approximate in cross section in a direction perpendicular to the longitudinal direction thereof. So that it has a curved shape (for example, a shape where the corners of a polygonal line forming a polygon are rounded and curved), and its outline includes a plurality of arcs such as wavy lines or a zigzag shape, etc. When it is formed so as to include a plurality of polygonal lines, it is possible to increase the surface area of the floor support, so that the underground heat collection by the underground heat collection unit, or the underground heat collection Heat exchange between the underground heat by the section and the air or the heat storage body in the underfloor space can be performed more efficiently.

  Furthermore, in the present invention, at least one of the ground side support part and the underground side heat collecting part is formed by combining a plurality of circular and / or polygonal cross sections as a whole in a direction orthogonal to the longitudinal direction. When formed so as to have a shape, the surface area of the floor support can be increased, so that underground heat can be taken in by the underground heat collecting section, or underground heat can be obtained by the underground heat collecting section. And heat exchange between the air in the underfloor space or the heat storage body can be performed more efficiently.

It is a figure for demonstrating schematic structure of the building air-conditioning system by Embodiment 1 of this invention. It is a center longitudinal cross-sectional view which shows the floor support body used for the building air conditioning system of FIG. (A) is a center longitudinal cross-sectional view for demonstrating the floor support body used for the building air-conditioning system by Embodiment 2 of this invention, (b) is a center longitudinal cross-section for demonstrating the modification of this Embodiment 2. FIG. FIG. It is a figure for demonstrating schematic structure of the building air-conditioning system by Embodiment 3 of this invention. It is a plane sectional view for explaining a floor support used for a building air-conditioning system by Embodiment 4 of the present invention, and its modification. It is a center longitudinal cross-sectional view for demonstrating the floor support body used for the building air conditioning system by Embodiment 5 of this invention.

[First Embodiment]
Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a diagram for explaining a schematic configuration of a building air-conditioning system according to Embodiment 1 of the present invention, and FIG. 2 is a central longitudinal sectional view showing a floor support used in the building air-conditioning system according to Embodiment 1 of the present invention. . In FIG. 1, 1 is the ground, 1a is the ground (in the first embodiment, the height of the ground 1a coincides with the ground surface (GL)), 2 is a lower portion embedded in the ground 1 and an upper portion ( A concrete foundation (cloth foundation) on which the rising portion 2a) is erected on the ground, 3 is a base fixed on the rising portion 2a of the foundation 2, 4 is a column fixed on the base 3, 5 is an outer wall portion fixed to the pillar 4, 6 is a floor plate fixed to the base 3, 7 is a large support that supports the floor plate 6, and 8 is moisture-proof on the ground 1 a surrounded by the foundation 2. It is a concrete layer formed for the purpose of. Reference numeral 9 denotes an underfloor space formed by the floor plate 6, the ground 1 a or the concrete layer 8, and the rising portion 2 a of the foundation 2. In FIG. 1, a ventilation port for introducing outside air formed in the rising portion 2 a of the foundation 2, a joist disposed between the floor plate 6 and the large pull 7, and the ground 1 a and the The gravel and moisture-proof sheet disposed between the concrete layer 8 are not shown.

  1 and 2, 10 is a floor support (bundle) that supports the floor plate 6 and the large pull 7 with respect to the ground 1, and 10 a is above the ground 1 a or the concrete layer 8 in the floor support 10. A ground-side support portion 10b extending from the ground 1a or the concrete layer 8 to the ground side (GL. In the first embodiment, for example) It is a ground side heat collecting part extending from the ground 1a to a depth of about 80 cm to 2 m, for example, a ground side heat collecting part made of a cylindrical pipe. The ground side support portion 10a and the underground side heat collecting portion 10b are integrally formed with a material having good thermal conductivity, for example, a metal material such as aluminum, steel, or copper.

  1 and 2, reference numeral 11 denotes a lower end portion of the ground side support portion 10a (in the ground side support portion 10a so that the ground side support portion 10a does not sink in the ground due to the load of the floor plate 6 or the like. A stopper made of, for example, a ring-shaped flat plate fixed to the outer peripheral surface of the concrete layer 8 by welding or the like, and a mounting table 12 fixed to the upper end of the ground side support portion 10a by welding or the like And it is a mounting table for mounting the large drawer 7. The underfloor space 9 is filled with a number of grits (not shown) having a heat storage effect.

  In FIG. 1, reference numeral 13 denotes a fan disposed in the underfloor space 9 for supplying the air in the underfloor space 9 into the room, and reference numeral 14 denotes a pipe for sending the air sent by the fan 13 into the room (the floor plate). 14 a is an air outlet formed in a part of the pipe 14. The pipe 14 is inserted into the hole 6 a formed in the pipe 6 and disposed inside the inner wall.

  Next, the operation of the first embodiment will be described. As shown in FIG. 1, in this Embodiment 1, the underground side heat collection part 10b which is the downward part of the said floor support body 10 is a stratum part (soil) of the depth of about 80 cm-2m from a ground surface (GL). It has been buried up to the stratum part where the temperature change is small throughout the year due to the heat insulation function of the earth. Therefore, the underground side heat collecting unit 10b takes in the underground heat of the formation portion with a small temperature change throughout the year. The underground heat taken into the underground side heat collecting part 10b is transmitted to the ground side support part 10a, and further transmitted from the ground side support part 10a to a number of grits in the underfloor space 9, Heat is stored in the grit stone. As a result of the above operation, underground heat is stored in a number of grits in the underfloor space 9, and as a result, the air in the underfloor space 9 is efficiently exchanged with underground heat. The air in the underfloor space 9 exchanged with the underground heat is supplied to each room by the fan 13 through the pipe 14 and the air outlet 14a.

  As described above, in the first embodiment, the floor support 10 that supports the floor board 6 and the large pull 7 of the building with respect to the ground 1 is provided with the ground-side support 10a that extends upward from the ground 1a or the concrete layer 8. And an underground side heat collecting portion extending from the ground surface 1a or the concrete layer 8 in the underground direction to a depth of about 80 cm to 2 m from the ground surface (GL). Therefore, according to this Embodiment 1, while adding the said underground side heat collection part 10b to the said ground side support part 10a substantially the same as the floor support body (bundle) conventionally used, it is used conventionally. The ground side heat collecting part 10b is submerged in the work of installing the ground side support part 10a, which is substantially the same as the floor support (bundle) that is provided, between the ground 1a or the concrete layer 8 and the large pull 7. Just by adding the work to embed in the ground, without significantly increasing the material cost and the work burden at the time of construction, the underground heat is taken in, and the taken underground heat is exchanged with the air in the underfloor space, It is possible to supply the heat-exchanged air indoors (to realize a building air conditioning system using underground heat).

  In the first embodiment, a stopper 11 made of a substantially ring-shaped flat plate is welded to the outer peripheral surface of the lower end portion (the portion facing the upper surface of the concrete layer 8) of the ground-side support portion 10a of the floor support 10 or the like. Therefore, it is possible to prevent the ground side support portion 10a from sinking in the underground due to the load from the floor board 6 or the large pull 7. In the first embodiment, the stopper 11 is disposed on the upper surface of the concrete layer 8. However, the stopper 11 may be embedded in the concrete layer 8.

[Second Embodiment]
Next, a second embodiment of the present invention will be described. Since the basic configuration of the second embodiment is the same as that of the first embodiment, only different parts will be described below. In FIG. 3, the same reference numerals are given to portions common to FIGS.

  FIG. 3A is a central longitudinal sectional view showing the floor support according to the second embodiment. In FIG. 3 (a), 20 is a floor support, 20a is a ground-side support composed of a substantially cylindrical pipe that is a portion from the concrete layer 8 to the large draw 7 in the floor support 20, and 20b is the floor support. An underground side heat collecting portion 20c consisting of a substantially cylindrical pipe, which is a portion extending in the underground direction from the concrete layer 8 in the body 20, is a small-diameter portion for connection formed at the lower end portion of the ground side support portion 20a. It is a small diameter portion for connection that can be inserted and fitted into the inside of the underground side heat collecting portion 20b through the opening at the upper end of the underground side heat collecting portion 20b. In the second embodiment, the ground side support portion is formed by inserting and fitting the small diameter portion 20c for connection of the ground side support portion 20a into the upper end portion of the underground side heat collecting portion 20b and the vicinity thereof. 20a and the underground side heat collection part 20b are connected so that heat conduction is possible.

  As described above, in the second embodiment, the ground-side support portion 20a and the underground-side heat collecting portion 20b constituting the floor support 20 are separated from each other while the small-diameter portion 20c (connection portion) is connected. ) So that they can be connected to each other so as to conduct heat. Therefore, according to the second embodiment, the installation work of the ground side support part 20a to the concrete layer 8 and the large drawing 7 and the underground work of the underground side heat collecting part 20b are simplified. It becomes efficient and the work burden of construction of the floor support 20 can be further reduced.

  In FIG. 3A, 21 is a substantially ring-shaped stopper fixed by welding or the like to the outer peripheral surface of the upper portion of the connecting small diameter portion 20c in the ground side support portion 20a, and 23 is the underground side It is a substantially ring-shaped stopper fixed to the outer peripheral surface of the upper end part of the heat collecting part 20b by welding or the like. By disposing the stopper 23 on the upper surface of the concrete layer 8, the underground side heat collecting portion 20b and the ground side support portion 20a are prevented from sinking in the underground direction. Further, when the small-diameter portion 20c for connection is inserted and fitted into the underground side heat collecting portion 20b and the ground side support portion 20a and the underground side heat collecting portion 20b are connected, the stopper 21 is By placing or abutting on the stopper 23, the ground-side support portion 20a is further prevented from sinking in the ground direction (fixed to the ground-side support portion 20a). Any one of the stopper 21 and the stopper 23 fixed to the underground side heat collecting part 20b can prevent the ground side supporting part 20a from sinking in the underground direction. ). Further, in FIG. 3A, reference numeral 22 denotes a mounting portion fixed to the upper end portion of the ground side support portion 20a in order to place the large pull 7.

  Next, FIG.3 (b) is a center longitudinal cross-sectional view which shows the floor support which concerns on the modification of this Embodiment 2. FIG. In this modification, unlike the example shown in FIG. 3 (a), a substantially ring-shaped stopper 23a is fixed to the outer peripheral surface of the portion slightly below the upper end of the underground heat collecting portion 20b by welding or the like, The stopper 23a is embedded in the concrete layer 8 on the ground 1a. In this modification, the stopper 21 (see FIG. 3A) provided in the ground-side support portion 20a in the second embodiment is not provided. Also by such a modification, the same effect as the said Embodiment 2 shown to Fig.3 (a) can be show | played.

[Third Embodiment]
Next, Embodiment 3 of the present invention will be described with reference to FIG. Since the basic configuration and operational effects of the third embodiment are substantially the same as those of the first embodiment, only different parts will be described below. 4 that are the same as those in FIG.

  In FIG. 4, 31 is a solid foundation formed of reinforced concrete on the entire lower surface of the building, 31 a is a rising portion of the outer peripheral portion of the solid foundation 31, 32 is a joist that constitutes a floor together with the floor plate 6 and the overdraw 7, Reference numeral 33 denotes a floor support made of a substantially cylindrical pipe disposed between the large pull 7 and a position having a depth of about 80 cm to 2 m in the underground direction from the ground surface. Reference numeral 33 a denotes a ground-side support portion that supports a floor such as the large-draw 7 in a portion above the solid foundation 31 in the floor support 33. In addition, 33b is a portion of the floor support 33 below the solid foundation 31 that is buried in a depth of about 80 cm to 2 m in the underground direction from the ground surface, and collects ground heat. It is a middle heat collecting part. In FIG. 4, a stopper (see reference numeral 11 in FIG. 1) for preventing the ground side support portion 33 a from sinking, a fan 13 for supplying the air in the underfloor space 9 into the room, and the like are illustrated. Is omitted.

  In FIG. 4, reference numeral 34 denotes a number of grits filled in the underfloor space 9. Conventionally, it has been known that the grits 34 have a heat storage effect. As described above, the underground heat collected by the underground side heat collecting part 33b is conducted to the ground side support part 33a (see arrow a in FIG. 4). The heat of 33a is conducted and stored in the grindstone 34 in the underfloor space 9 (see arrow b in FIG. 4). As a result, the underfloor space 9 filled with the large number of grits 34 functions as a heat storage layer in which underground heat is conducted and stored. In the third embodiment, crushed stone may be used instead of the grindstone 34, or other heat storage body having a similar heat storage function (for example, from liquid to gel at about 20 to 23 ° C.). It is also possible to use a known heat storage body that transitions to

[Fourth Embodiment]
Next, a fourth embodiment of the present invention will be described with reference to FIG. Since the basic configuration of the fourth embodiment is the same as that of the first embodiment, only different parts will be described below. In this Embodiment 4, as shown to Fig.5 (a), the floor support 41 (both the ground side support part which comprises the floor support body 41, and / or one of the underground side heat collecting parts) is made into the longitudinal direction. The cross section in the direction orthogonal to the direction is formed so as to have a shape that approximates a circular shape as a whole, and the outline thereof is formed so as to include a plurality of arcs such as wavy lines.

  Thus, in Embodiment 4, since the contour of the floor support 41 is formed to include a plurality of arcs, the entire surface area of the floor support 41 can be increased, Heat collection to the floor support 41 side and / or heat conduction from the floor support 41 to the underfloor space side can be performed efficiently.

  In addition, as shown in FIG. 5A, the floor support 41 (both or either one of the ground side support part and the underground side heat collecting part constituting the floor support 41) has a circular cross section as a whole. Instead of forming the shape so as to approximate the shape and forming the contour so as to include a plurality of arcs such as wavy lines, the entire cross section of the floor support 41 in the direction perpendicular to the longitudinal direction is formed. As a circular shape, a polygonal shape, or a shape similar to these, and the contour includes a plurality of broken lines such as a zigzag, or the floor support 41 is orthogonal to the longitudinal direction. Even when the cross section of the floor support 41 is formed to have a polygonal shape or a shape similar to these as a whole and the contour includes a plurality of arcs such as wavy lines, the entire floor support 41 is Increase surface area Since bets can, it is possible to obtain the same effect as that in the FIG. 5 (a).

  Next, FIG. 5B is a plan sectional view showing another modification of the fourth embodiment. In this modification, the floor support 42 (the ground side support part and / or the ground side heat collecting part constituting the floor support 42) is shown as a whole in a cross section in a direction perpendicular to the longitudinal direction. Or a shape approximate to these (a shape in which the corners of the polygonal lines constituting the polygon are rounded and curved). Also in the case of this modification, since the entire surface area of the floor support 42 can be increased, the same effect as in the case of FIG. 5A can be obtained.

  Next, FIG. 5C is a plan sectional view showing still another modification of the fourth embodiment. In this modified example, as shown in the figure, the floor support 43 (both or one of the ground side support part and the underground side heat collecting part constituting the floor support 43) is orthogonal to the longitudinal direction thereof. The cross section inside is formed so as to have a shape in which a plurality of circular shapes 43a are combined as a whole. Also in the case of this modification, since the entire surface area of the floor support 43 can be increased, the same effect as in the case of FIG. 5A can be obtained. Instead of such a modification, the floor support 43 is formed so that the cross section inside the direction orthogonal to the longitudinal direction has a shape combining a plurality of polygons as a whole, or the floor support. Even when the body 43 is formed so that the internal cross section in the direction orthogonal to the longitudinal direction has a shape obtained by combining a plurality of circles and polygons as a whole, the same effect as in the case of FIG. Can be obtained.

[Fifth Embodiment]
Next, a fifth embodiment of the present invention will be described with reference to FIG. Since the basic configuration and operational effects of the fifth embodiment are substantially the same as those of the first embodiment (see FIG. 1) or the third embodiment (see FIG. 4), only different parts will be described below. In FIG. 6, the same reference numerals are given to portions common to FIG. 1 or FIG. 4, and description thereof is omitted.

  In FIG. 6, 51 is arrange | positioned between the large drawing 7 fixed to the lower surface of the floor board 6, and the position of the depth of about 80 cm-2m in the underground direction from the underground ground surface, for example, a substantially cylindrical shape. A floor support made of pipe. Further, 51 a is a ground-side support portion that constitutes a portion above the concrete layer 8 (a portion that constitutes the bottom surface of the underfloor space) in the floor support 51 and supports the large pull 7 and the floor board 6. In addition, 51b constitutes a portion below the concrete layer 8 in the floor support 51, and is buried to a depth of about 80 cm to 2 m in the underground direction from the ground surface in the ground, and takes in underground heat. It is a middle heat collecting part. In FIG. 6, a stopper (see reference numeral 11 in FIG. 1) for preventing the ground side support 51a from sinking, and a fan for supplying air in the underfloor space 9 into the room (reference numeral in FIG. 1). 13) and the like are not shown.

  Further, in the fifth embodiment, unlike the third embodiment, a heat storage body such as gulite (see reference numeral 34 in FIG. 4) is not arranged or filled in the underfloor space 9. That is, in the fifth embodiment, the underfloor space 9 is an air flow passage in which air exists or flows. In the fifth embodiment, the ground-side support 51a in the floor support 51 includes a plurality of plate-like fins 51c protruding in a substantially ring shape from the outer surface of the ground-side support 51a. It is fixed to the surface of the ground side support part 51a by welding or the like (or formed integrally with the ground side support part 51a).

  In the fifth embodiment, as described above, a plurality of fins 51c are projected from the outer surface of the ground side support portion 51a. Therefore, according to the fifth embodiment, the underground heat existing in the ground is taken from the underground into the underground side heat collecting part 51b (see arrow a in FIG. 6), and the underground side heat collecting part. Conducted from 51b to the ground support 51a (see arrow b in FIG. 6). Thereafter, the underground heat conducted to the ground-side support portion 51a is introduced from, for example, the outdoors through the plurality of fins 51c and flows through the underfloor space 9 (see arrow c in FIG. 6). (See arrow d in FIG. 6). As a result, the entire underfloor space 9 is always maintained at a temperature that approximates underground heat.

  As mentioned above, although each embodiment of the present invention was described, the present invention is not limited to what was described as each above-mentioned embodiment, and various amendments and changes are possible. For example, in each of the above embodiments, the floor supports 10, 20, 33, 41, 42, and 43 have a shape that extends linearly in the longitudinal direction, but the present invention is not limited to this. For example, all or a part of the floor support may be curved in the longitudinal direction. In the first embodiment, the depth embedded in the ground side heat collecting section 10b of the floor support 10 is set to a depth of about 80 cm to 2 m from the ground surface to the ground direction. For example, the depth to be embedded may be a depth of about 2 to 10 m or a depth of about 10 to 20 m in the underground direction from the ground surface. Further, in the present invention, the large pull 7 or the floor board 6 is formed on a part of the ground side support portions 10a, 20a, 33a, 51a in the floor support portions 10, 20, 33, 51 of the first to fifth embodiments. A known mechanism for adjusting the height of the ground side support portions 10a, 20a, 33a, 51a so that the distance between the bottom surface space 9 and the bottom surface (concrete layer 8 or the ground 1a) can be handled with high accuracy. You may make it prepare.

DESCRIPTION OF SYMBOLS 1 Ground 1a Ground 2,31 Foundation 2a, 31a Foundation rising part 3 Base 4 Pillar 5 Outer wall part 6 Floor board 6a Hole 7 Large drawing 8 Concrete layer 9 Underfloor space 10, 20, 33, 41, 42, 43, 51 Floor support Body 10a, 20a, 33a, 51a Ground side support part 10b, 20b, 33b, 51b Underground side heat collection part 11, 21, 23, 23a Stopper 13 Fan 14 Pipe 14a Air discharge port 20c Small diameter part 34 for connection Grindstone 51c fin

Claims (10)

A floor support formed of a material having good thermal conductivity and supporting the floor of a building against the ground,
A ground side heat collecting part that extends from the ground surface to a depth of at least 80 cm in the ground direction and that takes in the ground heat from the ground, and the ground or the ground that constitutes the bottom side of the underfloor space A ground-side support that extends from the upper concrete layer to the floor in the upward direction, and transmits the underground heat taken in by the underground heat collection unit to the air or the heat storage body in the underfloor space through itself. A floor support, wherein the support portions are integrally formed with each other. A floor support formed of a material having good thermal conductivity and supporting the floor of a building against the ground,
A ground side heat collecting part that extends from the ground surface to a depth of at least 80 cm in the ground direction and that takes in the ground heat from the ground, and the ground or the ground that constitutes the bottom side of the underfloor space A ground-side support that extends from the upper concrete layer to the floor in the upward direction, and transmits the underground heat taken in by the underground heat collection unit to the air or the heat storage body in the underfloor space through itself. The floor support body which a support part is connected with a connection part so that heat conduction is possible mutually.   A fixing part for fixing the ground side support part or the underground side heat collection part to the ground so as not to move in the underground direction due to a load from the floor, to the ground side support part or the underground side heat collection part, The floor support according to claim 1, wherein the floor support is provided.   The floor support according to claim 1 or 2, wherein a heat storage body that holds heat conducted from the ground-side support portion is disposed in the underfloor space.   The floor support according to claim 4, wherein the heat storage body is a number of grits or crushed stones filled in the underfloor space.   At least one of the ground side support part and the underground side heat collecting part is formed so that a cross section in a direction orthogonal to a longitudinal direction thereof has a polygonal shape or a shape approximate to this as a whole. Or a floor support according to 2;   At least one of the ground side support part and the underground side heat collecting part is such that the cross section in the direction orthogonal to the longitudinal direction thereof is a circular shape, a polygonal shape or a shape similar to these as a whole, and the contour thereof is The floor support according to claim 1 or 2, wherein the floor support is formed so as to include a plurality of arcs such as wavy lines or a plurality of broken lines such as zigzag.   At least one of the ground side support part and the underground side heat collecting part is formed such that the internal cross section in the direction orthogonal to the longitudinal direction has a circular shape and / or a combination of a plurality of polygons as a whole. The floor support according to claim 1 or 2, wherein   The floor support according to claim 1 or 2, wherein the ground side support portion includes a plurality of fins protruding outward. A floor support formed of a material having good thermal conductivity and supporting the floor of a building with respect to the ground, which is a ground side heat collecting part extending from the ground surface to a depth of at least 80 cm in the ground. A ground side heat collecting part for taking underground heat from the ground, and a ground side support part extending upward from the ground or a concrete layer on the ground constituting the bottom side of the underfloor space to the floor. The ground side support part that conducts the underground heat taken in by the heat collecting part to the air in the underfloor space or the heat storage body through itself is formed integrally with each other or connected to each other by the connecting part so as to be able to conduct heat. A floor support comprising:
An air supply unit for supplying air in the underfloor space into the room of the building;
A building air-conditioning system that uses geothermal heat.

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