JPH0432296B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a construction method for a floor heating structure, and in particular,
The present invention relates to a method of constructing a floor heating structure in which a heat storage material and heating wires are installed, the heat storage material is heated, and the stored heat is gradually dissipated to keep the floor warm.

[Conventional technology]

The indoor heating structure mainly consists of laying a heat storage material with a large amount of latent heat and heating wires (generally coated heating wires) that heat the heat storage material, embedding these in mortar or plaster, and laying floor finishing material on top. A type of floor heating structure in which the floor surface is formed by heating is disclosed in, for example, Japanese Patent Laid-Open No. 186134/1983.

In addition, there is also a floor heating structure in which a groove is formed on the top surface of the base layer, a heating wire is inserted into the groove, a heat storage material is laid on top of the groove, and a finishing material is laid on top of that to form the floor surface. .

As the heat storage material, for example, sodium sulfate
Decahydrate salt (also called mirabilite), heat storage materials such as calcium chloride or sodium acetate, or various fireproof materials can be used, and they are usually stored in a container such as a plastic case.

The sodium sulfate decahydrate is, for example, 40 to
It has a latent heat of 45kcal/Kg, and once it melts, it gradually releases a large amount of heat over a long period of time at a nearly constant temperature when it solidifies, so it can be kept indoors for a long time (for example, about 10 hours) even after heating. the comfortable temperature (e.g.
It can be kept at a temperature of 20 to 25℃.

[Technical problem to be solved by the invention]

By the way, in this type of floor heating structure, heating wires are buried inside a mortar layer formed on a floor such as a concrete slab, or in grooves formed in advance on the top surface of a base layer such as a mortar layer. The construction method used was to insert heating wires, lay heat storage material on top of them, and then form the floor surface with floor finishing material on top of that.

However, among these conventional construction methods for floor heating structures, the method of inserting heating wires requires a lot of man-hours to form the grooves and insert the heating wires into the grooves. , it is difficult to finish the finished surface to a smooth surface that will stabilize the heat storage material, and in the method of embedding the heating wire inside the mortar layer, it is easy to make the finished surface smooth, but the heating wire is When a wire breaks and needs to be replaced, the heating wire is buried in a layer (a layer of mortar or plaster).
There was a problem in that it was impossible to remove the old heating wire and install a new heating wire without completely destroying the entire heating wire, and that repair work for the heating wire also required a great deal of labor.

Furthermore, the method of inserting the heating wire into the groove has the problem of low thermal conductivity because a void is created within the groove after the heating wire is inserted.

[Means for solving problems]

The present invention has been made in view of the above-mentioned conventional technical problems, and allows the work to be carried out efficiently by eliminating the trouble of forming a groove into which a heat generating wire is inserted and the trouble of inserting a heat generating wire into the groove one by one. Even if a heating wire breaks, repair work such as replacing the heating wire can be carried out by simply breaking only the area where the heating wire is embedded, reducing the labor of repair and minimizing wasted materials. To provide a method for constructing a floor heating structure, which can easily smooth the surface on which heating wires are laid, and can stably lay a heat storage material thereon.

The present invention is a construction method for a floor heating structure in which a heat storage material is heated to store heat and the floor surface is kept warm by dissipating the stored heat. After forming a base layer and arranging a heating wire on the top surface of the base layer, placing mortar, plaster, sand, etc. at or near the top of the heating wire to a height that allows the position of the heating wire to be determined, The above object is achieved by a construction method in which a heat storage material is laid directly or through a thermal buffer material, and a floor finishing material is laid thereon either directly or through a base material.

〔Example〕

The present invention will be specifically described below with reference to the drawings.

FIG. 1 is a cross-sectional perspective view of a floor heating structure to which the construction method according to the first embodiment of the present invention is applied.

In FIG. 1, a base layer is formed by laying a heat-insulating layer 2 made of a heat insulating material such as urethane foam on the upper surface of a floor 1 of a building made of a concrete slab or floorboard, etc. Heat generating lines 3 are arranged at predetermined intervals on the upper surface of the apparatus.

The heating wire 3 has a structure in which an electric heating resistance wire is covered with an insulating material such as plastic, and when energized, the surface temperature rises to about 50 DEG C. to 100 DEG C., for example.

The upper surfaces of the base layers 1 and 2 are flat surfaces, and the heating wires 3 are placed on these flat surfaces in a predetermined arrangement, and are usually covered with adhesive tape 4 or nail members to prevent positional displacement. etc. on the base layer 2.

After arranging the heating wire 3 on the bases 1 and 2 in this manner, the heating wire 3 is placed at a height at or near the top of the heating wire 3 to a height that allows the position of the heating wire 3 to be determined, that is, to a height that is approximately the same as the diameter of the heating wire 3. A flattening layer 5 of plaster, mortar or sand is cast.

A heat storage material 6 is laid on the upper surface of the flattening layer 5.

However, by laying a floor finishing board 8 such as a board, tile or carpet on the installation surface of this heat storage material 6, and constructing the above-described laminated structure on the floor 1 made of a slab of concrete or gypsum, etc. A floor heating structure according to the invention is formed.

FIG. 2 shows a floor heating structure constructed in accordance with another embodiment of the present invention.

The floor heating structure shown in FIG. 2 has a structure in which heating wires 3 are placed directly on the upper surface of a floor 1 made of a slab of concrete or gypsum, without using any heat insulating material, and the base layer is formed only from the floor 1.

The other parts in FIG. 2 are the same as those in FIG. 1, and corresponding parts are indicated by the same numbers, and detailed explanation thereof will be omitted.

FIG. 3 is a sectional view of a floor heating structure constructed using a construction method according to a third embodiment of the present invention.

In this embodiment, instead of constructing the heat storage layer 6 directly on the upper surface of the flattening layer 5 as in the underfloor heating structure shown in FIG. 9, and a layer of heat storage material 6 is disposed thereon.

The thermal buffer material layer 9 is a layer for preventing the heat storage material 6 from being locally rapidly heated and melted by the heating wire 3, and for uniformly heating and melting the heat storage material 6 at an appropriate temperature that is not too high. For example, it can be constructed of a thermal buffer layer made of mortar, plaster, etc., or a thermal buffer material such as a plastic board, raw cloth, metal plate, etc.

The floor heating structure shown in FIG. 3 differs from the floor heating structure shown in FIG. 1 in that the layer 9 of the thermal buffer material is provided, and other parts are substantially the same as the high-rise structure shown in FIG. Corresponding parts are indicated by the same numbers, and detailed explanation thereof will be omitted.

FIG. 4 is a sectional view of a floor heating structure constructed using a construction method according to a fourth embodiment of the present invention.

The floor heating structure shown in FIG. 4 has a structure in which a base material layer 10 is additionally provided between the heat storage material 6 layer and the floor finishing material layer 8 in the floor heating structure shown in FIG. 3.

This base material layer 10 has the function of uniformizing the temperature distribution of the indoor floor surface F and protecting the heat storage material 6, and can be formed of, for example, a layer of mortar.

The floor heating structure shown in FIG. 4 differs from the floor heating structure shown in FIG. 1 in that the base material layer 10 is provided, and the other parts are substantially the same as the structure shown in FIG. Corresponding parts are indicated by the same numbers, and detailed explanation thereof will be omitted.

FIG. 5 is a sectional view of a floor heating structure constructed using a construction method according to a fifth embodiment of the present invention.

In the floor heating structure shown in Fig. 5, heating wires 3 are arranged on the base layer 2, and after this is buried to almost the same level with a flattening layer 5 such as mortar, plaster, or sand, the heating wires 3 are placed on top of it as shown in Fig. not directly as in
A heat equalizing plate 11 is installed, and a layer of heat storage material 6 is provided on the heat equalizing plate 11.

This heat equalizing plate 11 is used to uniformize the distribution of heat transferred to the heat storage material 6 when the heat generation wire 3 is energized to heat and melt the heat storage material 6, and has excellent thermal diffusivity. Made of a good conductor of heat, such as a metal plate (aluminum, copper, iron, etc.).

The floor heating structure shown in Fig. 5 differs from the floor heating structure shown in Fig. 1 in that the above-mentioned heat equalizing plate 11 is provided, and other parts are substantially the same as the structure shown in Fig. 1, and correspond to each other. Display the parts with the same number,
A detailed explanation thereof will be omitted.

In addition, in the layers of heat storage materials 6 having the structure shown in FIGS. 1 to 5, after a plurality of heat storage materials are laid in a predetermined arrangement, gaps are created between each heat storage material 6, and if the gaps are considerably large. A spacer may be interposed therebetween. The spacer may be made of any suitable material including plastic board, mortar board, gypsum board, and even waste wood.

When using the above floor heating structure, electricity is applied to the heating wire 3 made of a coated electric heating resistance wire, and the heat generated at that time (for example, 50 to 100 degrees Celsius) heats and melts the heat storage material 6 (for example, to about 30 degrees Celsius). .

When the heat storage material 6 is completely melted, the power supply to the heating wire 3 is stopped.

Thereafter, the floor surface F is kept at a predetermined temperature (e.g., 21°C) for a considerable period of time (e.g., 10 hours) by the latent heat dissipated when the heat storage material 6 gradually solidifies due to the ambient temperature. can do.

When the heat dissipation of the heat storage material 6 is almost completed, the heating wire 3 is energized to heat and melt the heat storage material 6, thereby further maintaining heating.

According to the embodiment described above, the following effects can be obtained.

() Insulation 2 in floor 1 itself or on top of floor 1
The heating wire 3 is placed on the upper surface of the base layer formed by laying the heating wire 3, and the flattening layer 5 is placed to hold the heating wire 3. Therefore, unlike the conventional method, the heating wire 3 is placed in the groove on the surface of the base layer. There is no need for insertion, no groove forming is required, and the work of inserting the heating wire 3 into the groove can be eliminated, and the workability can be improved.

() The flattening layer 5 is cast to a height within the range where the position of the heating wire 3 can be determined, so when replacing the heating wire 3 due to breakage etc., when the heating wire is lifted, mortar etc. is applied only to the heating wire section. It can be removed and replaced.

As a result, it is no longer necessary to peel off the entire mortar layer as in the past, making it possible to improve the economic efficiency of mortar and the efficiency of repair work.

〔Effect of the invention〕

As is clear from the above description, according to the present invention, a base layer is formed by laying a heat insulating material, mortar, plaster, etc. on the floor as it is or on the floor, and after heating wires are arranged on the upper surface of the base layer. A flattening layer of mortar, plaster, sand, etc. is placed at or near the top of the heating wire to a height that allows the position of the heating wire to be determined, and a heat storage material is placed directly or through a thermal buffer material on top of the flattening layer. Since we use a floor heating structure construction method in which floor finishing material is laid directly or through the base material on top of the heating wire, the work of inserting the heating wire into the groove can be eliminated, and there is no risk of wire breakage, etc. When replacing a heating wire, the mortar or the like can be removed and repaired only in the heating wire portion, and a method for installing a floor heating structure with excellent workability and repair workability can be obtained.

[Brief explanation of drawings]

FIG. 1 is a cross-sectional perspective view of a floor heating structure formed by the method according to the first embodiment of the present invention, FIG. 2 is a diagram showing the method according to the second embodiment of the present invention, and FIG. Fig. 4 shows the method according to the fourth embodiment of the present invention, and Fig. 5 shows a cross-sectional view of a floor heating structure formed using the method according to the fifth embodiment of the present invention. be. 1...Floor, 2...Insulation material, 3...Heating wire, 5...
... Flattening layer, 6 ... Heat storage material, 8 ... Floor finishing material,
9... layer of thermal buffer material, 10... base material, 11...
Soaking board.

Claims (1)

[Claims] 1. In the construction method of a floor heating structure in which heat is stored by heating a heat storage material and the floor surface is kept warm by dissipating the stored heat, the floor heating structure is used as a base layer or by laying insulation material, mortar, plaster, etc. on the floor. form,
After placing the heating wire on the top surface of the base layer, a flattening layer of mortar, plaster, or sand is placed at or near the top of the heating wire to a height that allows the position of the heating wire to be determined, and then A method of constructing a floor heating structure, which comprises laying a heat storage material directly or through a thermal buffer material, and laying a floor finishing material thereon either directly or through a base material.