JPH0427449B2 - - Google Patents

Abstract

PURPOSE:To provide a less expensive floor heating panel with its distribution of temperature at the surface being uniform by a method wherein two hot water feeding pipes are arranged in parallel over a substantial entire surface of the base body of the panel and drawn in the base body of the panel. CONSTITUTION:Liquid feeding pipes 4a and 4b composed two plastic pipes or the like are arranged in parallel substantially over an entire surface of the base body 1 of the panel in the base body 1 of the panel in which for example a thermal insulation plate 2 of foamed plastic or the like and a hard asbestos plate 3 are connected to each other. Each end of the panel is drawn out at the corners 5 and 6 at the same side surface of the base body 1. Each of the liquid feeding pipes is applied as a hot water feeding pipe and a hot water returning pipe, respectively. If hot water is flowed in a reverse direction, a temperature in which hot water temperatures at adjoining portions of the pipes 4a and 4b are made as a uniform value and an amount of calorie over an entire region of the panel is made equal. The asbestos 3 is superior in its mechanical strength, so that the floor heating panel does not require any conventional type of reinforcing plate.

Description

DETAILED DESCRIPTION OF THE INVENTION Technical Field The present invention relates to a floor heating panel and a floor heating method using this floor heating panel.

<Prior art> Underfloor heating panels used for floor heating basically have hot water pipes embedded in the panel base, but the temperature of the hot water flowing through the hot water pipes depends on the hot water supply from the hot water pipes. The temperature gradually decreases as you move away from the end, and there is a considerable difference in hot water temperature between the hot water supply end and the hot water discharge end.

However, conventional floor heating panels have a structure in which a single hot water pipe (for example, a metal pipe such as a copper pipe) is simply meandered from one corner of the panel base to the opposite corner. The amount of heat supplied varies considerably within the panel surface due to the temperature difference in the heated hot water, and this is a major cause of uneven temperature distribution on the panel surface.

Furthermore, the panel base of a conventional floor heating panel is composed of a heat insulating plate and a surface radiant plate made of metal such as aluminum, and the heat storage effect relies on a special heat storage material provided around the hot water pipes. Therefore, a heat storage effect can only be expected locally, and this is also one of the causes of the above-mentioned surface temperature unevenness.

Furthermore, the strength of the panel base of the above structure is insufficient, so conventional underfloor heating panels must be covered with reinforcing boards such as plywood, and plywood warps and bends over time. This caused the inconvenience of requiring replacement after installation.

<Object of the Invention> An object of the present invention is to provide a floor heating panel that eliminates the above-mentioned conventional problems, and a floor heating method using such a floor heating panel.

<Structure of the Invention> The floor heating panel of the present invention has two water supply pipes (tubes for flowing not only hot water but also other heating media such as water vapor) within the panel base over almost the entire surface thereof. The main feature is that the two water pipes (including
One end of each of the two water supply pipes is interconnected inside the panel base, and each other end is drawn out to the outside.

In a preferred embodiment of the present invention, the panel base is a rectangular panel base made of a combination of a hard asbestos board provided on the front side that serves as a structural material, a heat storage material, and a surface radiation plate, and a heat insulating board provided on the back side. configured.

Moreover, the floor heating method of the present invention covers almost the entire surface of a rectangular panel base made of a joined body of a hard asbestos board provided on the front side and a heat insulating board provided on the back side.
In addition, two hot water pipes are routed in parallel in contact with the asbestos board, and either their ends are drawn out from the panel base, or their inner ends are connected to each other within the panel base. Each has a basic configuration in which the other end is drawn out from the panel base, and furthermore, the panel base has a planar shape of a desired size or a planar shape of a half thereof, and each of the water pipes The ends are located at both corners of one side of the panel base, or are located at corners symmetrical to each other with respect to the center of the panel base, or are located at one corner of the panel base so that they can be respectively pulled out, and the conveyor Floor heating panels (five types of panels P ₁ to _{P 5} to be described later) with different positional relationships of the draw-out corners of the ends of the hot water pipes are selectively combined and laid on a floor surface of a desired size, In addition to connecting the two water supply pipes of each floor heating panel, two systems of hot water supply pipes and hot water return pipes are installed on at least one side of the panel floor surface, and these pipes are connected to multiple locations on the panel floor surface. The system is connected to the two hot water pipes of each floor heating panel, and by flowing hot water into each pipe from opposite directions, hot water also flows from opposite directions into the hot water pipes. .

<Embodiments of the Invention> Hereinafter, a floor heating panel according to the present invention will be described.

FIG. 1 is a partially cutaway schematic plan view of a floor heating panel according to an embodiment of the present invention, and FIG. 2 is a schematic cross-sectional view taken along line A-A' in FIG.

In both figures, 1 is a panel base having a planar shape equivalent to, for example, one tatami mat, and is a rectangular panel with a heat insulating board 2 made of foamed plastic or the like on the back side and a hard asbestos board 3 on the front side joined by a method such as adhesive. Consists of the body. 4a and 4b are plastic pipes as hot water pipes buried in the panel base 1, such as nylon pipes (Toughcon, trade name, manufactured by Unitika), which have excellent durability and thermal conductivity, and also have sockets made of the same material. When used, it can be easily adhered with an adhesive.

As shown in FIG. 1, these plastic pipes 4a and 4b are routed in parallel over almost the entire surface of the panel base 1, and each end is connected to the corners 5 and 6 on the same side of the panel base 1. are drawn out respectively. Cutouts 7 and 8 are formed in the corners 5 and 6 of the heat insulating board 2.

Furthermore, a protrusion 9 is provided on the inner surface of the asbestos board 3, and plastic pipes 4a, 4b are attached thereto.
A groove 10 is formed for accommodating the. The plastic pipes 4a, 4b are embedded in the groove 10 at the same time as or before the asbestos board 3 and the heat insulating board 3 are joined together. Plastic pipe 4 like this
The reason why the pipes a and 4b are embedded in the grooves 10 of the asbestos board 3 is to increase the contact area between the plastic pipes 4a and 4b and the asbestos board 3, thereby increasing the heat conduction efficiency between them. Note that the protruding portion 10 may be formed as an independent member.

In the floor heating panel of this embodiment, since the two plastic pipes 4a and 4b are routed in parallel as described above, they are used as the outgoing water pipe and the returning water pipe, respectively, and the plastic pipes are used in the opposite direction. If you pour hot water into the plastic pipes 4a and 4b, you can remove them anywhere on the panel surface.
The average temperature of the hot water in adjacent areas is almost uniform, and the amount of heat supplied is equalized over the entire panel surface. Furthermore, the asbestos board 3 has good heat storage properties and exhibits a high heat storage effect, and the heat storage effect is not localized as in the conventional case, but is exerted over the entire panel surface. Therefore, according to this embodiment, the panel surface temperature distribution can be made much more uniform than before.

Furthermore, the asbestos board 3, which serves as a heat storage material and a surface radiation board, and also acts as a structural material of the panel base 1, has excellent mechanical strength. Therefore, the floor heating panel of this embodiment does not particularly require a reinforcing plate as in the conventional case, and a carpet or the like can be directly laid on it.

Furthermore, the floor heating panel of this embodiment has a simple structure and is easy to assemble, and the asbestos board 3 is made of inexpensive material and can be easily formed into the shape shown in the drawings by drawing or molding. Plastic pipes 4a and 4b are also cheaper than copper pipes, so
It can be manufactured more cheaply than before.

In addition, since the plastic pipes 4a and 4b can be connected using adhesive, piping work with the floor heating panel of this example is much easier than with conventional products that use copper pipes as hot water pipes that require brazing. This, coupled with the fact that no reinforcing plates are required, allows for low-cost installation.

FIG. 3 is a schematic plan view of a floor heating panel according to another embodiment of the present invention. In this embodiment, the two plastic pipes 4a and 4b are drawn out at the upper right and lower left corners 5' and 6 in the figure, which are symmetrical with respect to the center of the panel base 1. The routing route is different from the above embodiment, but the rest is the same.

FIG. 4 is a schematic plan view of a floor heating panel according to another embodiment of the present invention. In this embodiment, the two plastic pipes 4a, 4b are drawn out at the upper left and lower right corners 5, 6' of the figure, which are symmetrical with respect to the center of the panel base 1. The rest is the same as the embodiment shown in FIGS. 1 and 2 above.

FIG. 5 is a schematic plan view of a floor heating panel according to another embodiment of the present invention. In this example, 2
One ends of the plastic pipes 4a and 4b are connected to each other at a point C within the panel base 1, and the other ends of each are drawn out to a corner 11. In addition, in practice, one plastic pipe is connected to pipes 4a and 4.
Used as b. Also, plastic pipe 4
a and 4b are routed in a spiral manner. The structure other than this is the same as each of the above embodiments.

In this embodiment as well, since high temperature hot water and low temperature hot water flow in adjacent positions, it is clear that a uniform surface temperature distribution can be obtained as in each of the above embodiments.

FIG. 6 is a schematic plan view of a floor heating panel according to another embodiment of the present invention. In this embodiment, the panel base 1 is half the size of each of the above-mentioned embodiments, and has a planar shape equivalent to, for example, half a tatami mat, and the pull-out position and direction of the plastic pipes 4a and 4b are set at different angles. This embodiment is different from the embodiment shown in FIG. 5, but is otherwise the same.

FIG. 7 is a schematic sectional view of a floor heating panel according to another embodiment of the present invention. In this embodiment, a large number of small round voids 12 extending in the length direction are provided inside the asbestos board 3 near the upper surface, thereby reducing the weight of the panel base 1 while maintaining the mechanical strength of the asbestos board 3. It is. Other than this, it is the same as each of the above embodiments.

FIG. 8 is a schematic cross-sectional view of a floor heating panel according to yet another embodiment of the present invention. In this embodiment, in order to reduce the weight while maintaining the mechanical strength of the asbestos board 3, similar to the one shown in FIG. It was established. As described above, the asbestos board 3 can be integrally molded, but it may also be made by joining two upper and lower asbestos boards via the connection part 13. In that case, the connecting portion 13 may be provided integrally with one or both of the asbestos plates, or may be provided as a separate member.

Next, a floor heating method according to the present invention will be explained. For this explanation, the one-tatami-sized floor heating panel shown in Figures 1 and 2 will be referred to as P ₁ , the one-tatami-sized floor heating panel shown in Figure 3 will be referred to as P 2, and the one-tatami-sized floor heating panel shown in Figure 4 will be referred to as P ₂ . The 1 tatami sized floor heating panel shown in
_P3 , the one-tatami-sized floor heating panel shown in FIG. 5 is shown as _P4 , and the half-tatami-sized floor heating panel shown in FIG. 6 is shown as _P5 .

FIG. 9 is a schematic plan view showing an embodiment of the floor heating method according to the present invention. In this example, the entire floor of a four-and-a-half tatami room is heated. in this case,
In the figure, a _P1 panel and a _P5 panel are installed on the upper side, and two _P3 panels are installed below the _P2 panel. The ends of the opposing plastic pipes (water supply pipes) are bonded and connected to each other by, for example, linear sockets _S1 made of the same material.

In addition, as shown in the figure, the ends of the nylon pipes of the floor heating panels P ₃ , P ₂ , and P ₃ pulled out to one side of the floor (lower side in the figure) are made of the same material, for example, on the left and right sides of a T-shape. Through-type socket S ₂ ..., T-shaped one-end open type socket S ₃ , S ₃ and external relay pipes 20, 2
1 to a hot water supply pipe 2 of a water heater (not shown).
2 and hot water return pipe 23, respectively. Here, the linear socket _S1 is made of a piece of pipe having an inner diameter that is approximately the same as the outer diameter of the plastic pipe of the panel base, and in the case of the T-shaped left and right penetrating socket _S2 , it is also made of a plastic pipe of the panel base. It is made by connecting pieces of pipe in a T-shape with an inner diameter that is approximately the same as the outer diameter, and the T-shaped one-end closed type socket _S3 is made by preparing in advance a plug part that closes one end of the above-mentioned through-type socket _S2 . This will make the connection work easier.

With the above configuration, the hot water supplied from the water heater flows through the floor heating panels P ₃ to _{P 5} and P ₂ to _{P 1} to _{P 3} as shown by the arrows in the figure, and is then returned to the hot water supply system. Return to device. As mentioned above, each floor heating panel P ₁ to P ₃ and P ₅ has a uniform surface temperature distribution, so compared to the conventional system in which the hot water pipes meander sequentially from one side to the other, the temperature distribution across the entire floor surface is uniform. is heated dramatically and evenly.

FIG. 10 is a schematic plan view showing another embodiment of the floor heating method of the present invention. In this example, the entire floor of a 6-tatami room is heated, and in the figure, two P ₁ panels are installed on the upper side, and below them, from the left side, P ₂ , P ₄ , Panels P ₄ and P ₃ are being installed in sequence. And the ends of the mutually opposing plastic pipes of each underfloor heating panel are fitted with straight sockets S ₁
interconnected by... In addition, a floor heating panel pulled out on one side of the floor (lower side in the figure)
The ends of the plastic pipes P ₂ and P ₃ are connected to the hot water of the water heater through T-shaped left and right penetrating sockets S ₂ , S ₂ , T-shaped one-end closed sockets S ₃ , S ₃ and external relay pipes 20 , 21 . It is adhesively connected to the supply pipe 22 and hot water return pipe 23 as shown. The flow of hot water is as shown by the arrows in the figure. In this case too,
Compared to conventional systems, the plastic pipes are not simply meandering from one side to the other, so the entire floor is heated much more evenly.

FIG. 11 is a schematic plan view showing still another embodiment of the floor heating method of the present invention. In this example, the entire floor of a 20-tatami room is heated. In this case, from the top in the figure, four _P3 panels and four P2 panels are laid out in five tiers, as well as four _P2 panels. The ends of the mutually opposing plastic pipes of each floor heating panel are interconnected by straight sockets S ₁ . In addition, underfloor heating panels are pulled out on two sides of the floor (upper and lower sides in the figure).
The ends of the plastic pipes P ₃ ..., P ₃ ... are connected to the hot water of the water heater through a T-shaped left and right penetrating socket S ₂ ..., a T-shaped one-end closed socket S ₃ ..., and external relay pipes 20 ..., 21 .... It is adhesively connected to the supply pipes 22, 22 and hot water return pipes 23, 23 as shown. The flow of hot water is as shown by the arrows in the figure.

When the floor area is large like this, the conventional method of simply meandering from one side to the other would cause a drastic drop in temperature and would not be able to respond well. Since one is the outgoing path for hot water and the other is the incoming path, and hot water is supplied from above and below in the figure, the entire floor surface is heated fairly evenly. If you insert another hot water supply pipe 22 and hot water return pipe 23 around the second or third stage of the panel,
Of course, even more uniform heating can be achieved.

As is clear from the above three embodiments, according to the present invention, five types of floor heating with different planar shapes, hot water pipe extraction positions, etc. as shown in FIGS. 1, 3 to 6 are available. By appropriately combining panels, the floor surface of a room of any size can be heated evenly. Furthermore, depending on the shape of the combination, the hot water supply pipe and hot water return pipe of the water heater can be connected only on one side of the floor surface, making the installation work easier.

Although the embodiments of the present invention have been described in detail above, the present invention is not limited to these, and can be implemented with appropriate modifications within the scope of the present invention.

<Effects of the Invention> As explained above, according to the present invention, there is no need to lay a reinforcing board such as plywood on top, a uniform surface temperature distribution, and an inexpensive floor heating panel can be realized. Great effects such as being able to uniformly heat the floor of a room of a certain size with only a limited type of floor heating panel can be obtained.

[Brief explanation of drawings]

FIG. 1 is a schematic plan view showing an example of a floor heating panel according to the present invention, FIG. 2 is a schematic sectional view taken along line A-A' in FIG. A schematic plan view showing a different example of the
7 and 8 are schematic sectional views showing different examples of the floor heating panel according to the present invention, and FIGS. 9 to 11 are schematic sectional views showing different embodiments of the floor heating method according to the present invention, respectively. FIG. 1... Panel base, 2... Heat insulation board, 3... Asbestos board, 4
a, 4b...Hot water pipe, P ₁ to _{P 5} ...Floor heating panel, S ₁
~S ₃ ...Socket, 20, 21...External relay pipe,
22... Hot water supply pipe, 23... Hot water return pipe.

Claims (1)

[Scope of Claims] 1. Covers almost the entire inside of a rectangular panel base 1 consisting of a joined body of a hard asbestos board 3 provided on the front side and a heat insulating board 2 provided on the back side, and is in contact with the asbestos board 3. Then, the two water supply pipes 4a and 4b are routed in parallel, and either their ends are drawn out from the panel base 1, or their inner ends are connected to each other within the panel base 1, and the other end is pulled out from the panel base 1. are pulled out from the panel base 1, and each end of the externally pulled out ends are located at both corners 5, 6 of one side of the panel base 1, or are symmetrical to each other with respect to the center of the panel base 1. A floor heating panel characterized in that it is located at the corners 5, 6' or 5', 6, or at one corner 11 of the panel base 1. 2 The panel base 1 is characterized in that it has a planar shape of a desired size or a planar shape of a half of the desired size, and by appropriately combining and laying them, a panel floor surface of a desired width can be obtained. A floor heating panel according to claim 1. 3 Covering almost the entire inside of the rectangular panel base 1 consisting of a joined body of a hard asbestos board 3 provided on the front side and a heat insulating board 2 provided on the back side, and in contact with the asbestos board 3, two The hot water pipes 4a and 4b are routed in parallel, and either their ends are drawn out from the panel base 1, or their inner ends are connected to each other within the panel base 1, and the other ends are pulled out from the panel base 1. Furthermore, the panel base 1 has a planar shape of a desired size or a planar shape of a half thereof, and each end of each of the hot water pipes 4a, 4b is attached to a panel. located at both corners 5, 6 of one side of the base 1, or located at corners 5, 6' or 5', 6 symmetrical to each other with respect to the center of the panel base 1, or located at one corner of the panel base 1. The floor heating panels P ₁ to _{P 5} are positioned in the section 11 so that they can be pulled out, and the positions of the draw-out corners at the ends of the hot water pipes 4a and 4b are different from each other, and are selectively combined to form a desired width. Each floor heating panel P ₁ ~
While connecting the two water supply pipes 4a and 4b of _P5 ,
Two systems of hot water supply pipes 22 and hot water return pipes 23 are installed on at least one side of the panel floor surface, and two systems of floor heating panels P ₁ to _{P 5} are installed at each of these pipes 22 and 23 and at multiple locations on the panel floor surface. The floor heating is connected to the hot water pipes 4a and 4b of the panel 22 and 23, and by flowing hot water from opposite directions to each panel 22 and 23, hot water is also caused to flow from the opposite direction to the hot water pipes 4a and 4b, respectively. Method.