JPH02309136A - Heating structure for earth-floored room - Google Patents

Abstract

PURPOSE:To prevent a thermal radiation toward a ground surface and to enable temperature of the space of an earth-floored room to be adjusted by an indoor temperature by a method wherein a ground thermal insulation layer and a concrete layer are over lapped on the ground between foundations, a thermal medium circulation pipe is buried in the concrete layer, the ground floor is divided into a plurality of blocks and the thermal medium circulation pipe is arranged in each of the blocks. CONSTITUTION:In case that thermal medium such as hot water or the like is circulated within a pipe 8 to heat an earth floor, an earth floor thermal insulation layer 4 may prevent this heat from being discharged toward a ground surface 2. For a convenience sake, a concrete layer 5 is divided into a reinforcing base concrete layer 6 and a ground concrete layer 7. The reinforcing base concrete layer 6 is a layer which is mainly applied for facilitating a pipe arrangement of a pipe 8. The earth floor concrete layer 7 has the pipe 8 buried therein and it may act as a heat radiating part for heating air within the earth floored room 1. The pipe 8 divides the earth floor into a plurality of blocks in reference to the room arrangement and a room direction or the like and the pipe is arranged in such a way as the thermal medium can be circulated independently for each of the blocks. With such an arrangement, it is possible to perform an independent temperature adjustment.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to an earthen floor heating structure for houses and buildings.

[Prior Art] Conventionally, underfloor heating has a structure in which pipes are installed on the ground below the floor and are buried in a concrete layer.

(Problems to be solved by the invention) However, in such a structure, even if the concrete layer is a heat storage layer, heat is radiated into the soil rapidly, resulting in poor thermal efficiency.
Moreover, when there is water stored in the pipe, it expands, causing the pipe to burst.

[Means to solve the problem]

In order to eliminate such drawbacks, the present invention has a heating layer on the ground between the foundations that prevents heat radiation, and a concrete layer that stores and disperses heat. By burying pipes, dividing the earthen floor into multiple blocks, and installing heat medium circulation pipes in each block, heat radiation to the ground can be prevented and the temperature of the earthen floor space can be adjusted according to the indoor temperature. This project proposes an earthen floor heating structure that makes it possible to

[Example] An example of the earthen floor heating structure according to the present invention will be described in detail below with reference to the drawings. FIG. 1 is a cross-sectional view showing an embodiment of the earthen floor heating structure according to the present invention.
is the ground, 3 is a foundation, 4 is an earthen insulation layer, 5 is a concrete layer, and 8 is a heat medium circulation pipe (hereinafter simply referred to as a pipe). That is, the dirt floor insulation layer 4 is made of hard plastic foam such as polystyrene foam, polyurethane foam, phenol foam, polyisocyanurate foam, etc., and has a closed cell foam structure with a density of 30 to 100 kg/n.
? The material has a certain degree of compressive strength, or is made of at least one type of ALC board, wood cement board, wood wool cement board, etc., and has a thickness of about 10 to 100 mm. This earthen floor insulation layer 4 is for preventing heat from being released to the ground 2 when heating the earthen floor by circulating a heat medium such as hot water in the vibrator 8. Note that when the dirt floor insulation layer 4 is made of a hard plastic foam with a closed-cell foam structure, it has moisture resistance and can prevent moisture from entering from the ground 2. When using a moisture-proofing sheet, it is preferable to lay a moisture-proof sheet 11 between the ground 2 and the earth insulation layer 4, or between the earth insulation layer 4 and the concrete layer 5 (not shown), as shown by the two-dot chain line. It is something. The concrete layer 5 functions as a heat storage material and a dispersion material for heat from the pipe 8, and by burying the pipe 8, water may accumulate in the pipe 8, and if it freezes, the pipe 8 may burst. It is also useful in preventing Note that the concrete layer 5 is composed of a reinforced base concrete layer 6 and an earthen concrete layer 7 for convenience.
It is divided into The reinforced base concrete layer 6 is a layer mainly for facilitating piping of the pipe 8. This reinforced base concrete layer 6 can also be formed by pouring concrete or using a PC board or the like. Also,
The earthen floor concrete layer 7 buries the pipe 8 and functions as a heat dissipation section for heating the air above the earthen floor. Note that when a concrete-based heat insulating material such as a wood chip cement board or an ALC board is used as the above-mentioned earth floor heat insulating layer 4, it can also be used as the reinforced base concrete layer 6 of the concrete layer 5. Pipe 8 is a steel pipe,
It is made of a plastic pipe or the like, and is used to circulate a heat medium heated by a heat source 10 and sent through an outlet pipe 9 to heat the air □ above the earthen floor via the concrete layer 5. To explain further, as shown in Fig. 2, the pipe 8 divides the earthen floor into a plurality of blocks (two blocks A and B in the figure) according to the room layout, direction, etc. , the piping is arranged so that the heat medium can be circulated independently. In other words, because temperature differences occur between rooms due to differences in solar radiation due to direction, windows, etc., the earthen floor is divided into multiple blocks, and pipes 8a and 8b are installed for each block A and B. tube 9
are connected to each other via an on-off valve mechanism 12, and the circulation of the heat medium is turned on and off by opening and closing the on-off valve mechanism 12. Note that the opening and closing of the on-off valve mechanism 12 can also be controlled by a sensor installed indoors. Further, the heat medium may be water, antifreeze, gas, or the like. Further, the outlet pipe 9 is preferably protected with a heat insulating layer 13 as shown in FIG.

What has been described above is only one embodiment of the earthen floor heating structure according to the present invention, and as shown by the dashed line in FIG. It can also be used as a return path when the system is stopped. Also, an on-off valve mechanism 12 is added to each pipe as shown in FIG. 3, and 12a and 12d of the on-off valve mechanism 12 are opened, and 12c and
By closing b, the heat medium is moved in the direction of α, and 12
By closing a and 12d and opening 12b and 12c, it is possible to circulate in the direction of β, and by periodically switching this, it is possible to further promote uniform temperature within the block.

Furthermore, as shown in FIG. 1, at least one side of the foundation 3 (
If heat insulating boards 14 are attached and laid on both sides (in the figure), it is effective to prevent heat radiation from the foundation 3 to the outside air. Furthermore, as the heat source 10, not only a heating device such as a boiler, a solar heater, or an electric heater, but also a heating/cooling device can be used, and a cold heat medium can be circulated through the pipe 8 in the summer to cool the house.

〔Effect of the invention〕

As described above, according to the earthen floor heating structure according to the present invention,
Even if water were to accumulate in the pipe, it would not burst even if it froze because the pipe is sand-isolated by a concrete layer. ■Easily stores heat under the floor, reducing heat radiation to the outside. ■Underfloor heating can be performed as needed using an external heat source, making it possible to efficiently heat houses, etc. ■The whole house can be heated uniformly, and the temperature can be adjusted independently in each block. It has the following effects and characteristics.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram showing one embodiment of the earthen floor heating structure according to the present invention, FIG. 2 is a plan view showing piping of a vibrator, and FIG. 3 is an explanatory diagram showing another example of piping. 1...-earth floor, 2...ground, 4...earth insulation layer, 5
... Concrete layer, 8... Vibrator for heat medium circulation. No. 7 [:(1 Top...Earth floor 4...Earth insulation layer 5...Concrete layer 8...Heating medium circulation pipe 1st drawing 3rd floor

Claims (1)

[Claims] (1) In the earthen floor of a house or structure, an earthen insulation layer is laid on the ground, a concrete layer is laminated on the earthen insulation layer, and a heat medium circulation pipe is buried in the concrete layer, and An earthen floor heating structure characterized by having multiple independent circuits of heat medium circulation pipes.