JP2000274708A - Hot water floor heater - Google Patents

Abstract

PROBLEM TO BE SOLVED: To minimize variations in temperature within a floor heating panel containing a supply pipe and a return pipe. SOLUTION: In this floor heater 1 by hot water, a hot water pipe 3 comprising a supply pipe 4 and a return pipe 5 is built into a floor heating panel 2 and respective end parts 4a and 5a of the supply pipe 4 and the return pipe 5 are arranged respectively on the side of two sides 6 and 7 facing each other of the floor heating panel 2. The overall length of the supply pipe 4 built into the floor heating panel 2 is larger than that of the return pipe 5.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hot water floor heating apparatus, and more particularly to a headerless hot water floor heating apparatus.

[0002]

2. Description of the Related Art Conventionally, for example, Japanese Patent Application Laid-Open No. 9-28775
In the publication No. 1, as shown in FIG. 6, a floor heating panel 2 having a built-in hot water pipe 3 composed of an outgoing pipe 4 and a return pipe 5 and an end panel 49 are laid side by side on a base floor to provide floor heating. A hot-water floor heating device in which each end 4a, 5a of the forward pipe 4 and the return pipe 5 drawn out from the back side of the panel 2 is connected to an outlet header 45 and an inlet header 44 installed under the floor, respectively. It has been known. In addition, 40 in the figure is large, 4
1 is a joist.

[0003]

By the way, in a floor heating panel in which a forward pipe 4 and a return pipe 5 are built in as in the prior art, the forward pipe 4 to which hot water is sent has a high temperature, while Since the temperature of the return pipe 5 to which the lowered water is returned is low, the temperature varies within the floor heating panel 2, and a high temperature portion and a low temperature portion occur when viewed from the entire floor heating panel 2. was there. In addition, since the headers 43 and 44 are conventionally installed under the floor, there is a problem that the piping work under the floor takes time.

[0004] The present invention has been made in view of the above points, and an object of the present invention is to provide a hot water floor heating system capable of reducing temperature variations in a floor heating panel having a built-in outward pipe and a return pipe. It is another object of the present invention to provide a headerless hot water floor heating apparatus which is excellent in workability and can omit a conventional under-floor header piping work.

[0005]

In order to solve the above-mentioned problems, the present invention provides a forward heating pipe 4 and a return pipe 5 inside a floor heating panel 2.
A hot water pipe 3 is built in, and two ends 6 and 7 of the floor heating panel 2 opposed to each other are provided at each end 4 of the forward pipe 4 and the return pipe 5.
a, 5a is a hot water floor heating device in which the total length of the outward pipe 4 incorporated in the floor heating panel 2 is set longer than the total length of the return pipe 5; With this configuration, it is possible to reduce a low-temperature portion in the floor heating panel 2 in which the outgoing pipe 4 and the return pipe 5 are built-in, thereby preventing temperature variations.

In the present invention, a hot water pipe 3 including a forward pipe 4 and a return pipe 5 is built in the floor heating panel 2, and the forward pipe 4 and the return path are provided on two opposing sides 6 and 7 of the floor heating panel 2. In the hot water floor heating device in which the ends 4a, 5a of the pipes 5 are respectively arranged, the distance b between the adjacent return pipe 5 and the forward path 4 is defined as the distance between the adjacent forward path 4 and the forward path 4. It is characterized in that it is set narrower than c and d. With this configuration, the low-temperature portion in the floor heating panel 2 in which the forward pipe 4 and the return pipe 5 are built-in is reduced to reduce the temperature. Can be prevented.

[0007] Lateral holes 8 are provided on the two sides 6 and 7 of the floor heating panel 2 facing each other, and are provided on both sides in the length direction of the floor heating panel 2 in the longitudinal direction. Downward grooves 9 communicating with the horizontal holes 8 are provided, and in each downward groove 9, each end 4 a, 5 a of the forward pipe 4 and the return pipe 5 built in the floor heating panel 2 respectively protrudes. At the same time, an operation opening 10 that opens above the floor heating panel 2 and communicates with the downward groove 9 is provided in a part of each downward groove 9, and the outward pipes 4 and 4 of the adjacent floor heating panels 2 and 2 are provided. Two connecting pipes 11 and 12 for connecting the return pipes 5 and 5 to each other are inserted into the downward grooves 9 from the horizontal holes 8 of each floor heating panel 2,
In the operation opening 10, each end 4 a of the outward pipe 4 and the return pipe 5,
5a. In this case, two connecting pipes 11, 12 are inserted into the downward grooves 9 from the horizontal holes 8 of the floor heating panel 2, and the connecting pipes are inserted from above the operation opening 10. Since the respective end portions 11a and 12a of the floor heating panel 2 and the respective end portions 4a and 5a of the return pipe 5 can be connected to each other, the outgoing pipes 4 of the adjacent floor heating panel 2 after the floor heating panel 2 is laid. The connection work between the four return pipes 5 and the return pipes 5, 5 can be easily performed.

[0008]

Embodiments of the present invention will be described below.

The headerless hot water floor heating apparatus 1 of the present embodiment
Is provided with a floor heating panel 2 in which a hot water pipe 3 composed of a forward pipe 4 and a return pipe 5 is built in, and hot water from a boiler 13 is directly supplied to the hot water pipe 3.

As shown in FIG. 4, for example, the floor heating panel 2 is configured by attaching a face plate 16 to the surfaces of a base material 14 and a frame material 15 via a soaking material 60 such as aluminum foil. Fitting recesses 17 are formed on the outer surface of the frame member 15, respectively, so that the adjacent floor heating panels 2 can be connected to each other through a nut 18 in a plane.

As shown in FIG. 1A, on the two sides 6 and 7 of the floor heating panel 2 opposite to each other, ends 4a and 5a of a forward pipe 4 and a return pipe 5 are disposed, respectively. In this example,
Lateral holes 8 opening laterally are provided on the side surface 2a of the end 6 of one side 6 of the floor heating panel 2 and the side surface 2b closer to the center of the side than the end of the other side 7. Further, on the back surface portions at both ends in the length direction of the floor heating panel 2, a downward groove 9 communicating with one lateral hole 8 and extending in the width direction of the floor heating panel 2 and communicating with the other lateral hole 8. In addition, a downward groove 9 extending in the width direction of the floor heating panel 2 is cut out. These downward grooves 9 are open downward, and have a size that allows two connecting pipes 11, 12 described later to be inserted at the same time. Each end 4a, 5a of the forward pipe 4 and the return pipe 5 built in the floor heating panel 2 respectively protrudes from the deep part 9a of the downward groove 9 and communicates with the downward groove 9 at this deep part 9a. And an operation opening 10 opened above the floor heating panel 2. Inside the operation opening 10, each end 11 a, 12 a of the two connecting pipes 11, 12, the forward pipe 4, and the return pipe are provided. Each end 4 of 5
a and 5a are connected to each other.

Here, the total length of the forward pipe 4 incorporated in the floor heating panel 2 is set longer than the total length of the return pipe 5. In this example, the outward pipe 4 includes three central portions 4g, 4b, and 4c that extend substantially parallel to the length direction of the floor heating panel 2;
It comprises a substantially U-shaped connecting portion 4d, a substantially U-shaped end portion 4e extending from the outer central portion 4g, and a substantially L-shaped end portion 4f extending from the inner central portion 4c. Return pipe 5
Are a central portion 5d, a substantially U-shaped end portion 5b, and a substantially L-shaped end portion 5 extending in the longitudinal direction of the floor heating panel 2.
c.

Thus, when viewed from a single floor heating panel 2, the entire length of the high-temperature outgoing pipe 4 into which hot water is sent from the boiler 13 corresponds to the low-temperature returning pipe 5 from which the cooled water is returned. Floor heating panel 2 by making it shorter than full length
It is possible to eliminate the variation in the temperature inside, and it is possible to reduce the portion where the temperature is low when viewed from the whole floor heating panel 2. Also, since the end portions 4e and 4f of the outward pipe 4 are arranged at both ends in the longitudinal direction of the floor heating panel 2, respectively.
It is also possible to eliminate low-temperature portions at both ends of the floor heating panel 2. Further, as shown in FIG. 2, when a plurality of floor heating panels 2 are arranged in parallel, the return pipe 5 of one adjacent floor heating panel 2 and the return pipe 5 of the other floor heating panel 2 are adjacent to each other.
Are arranged such that the closest approach is made, and even when a plurality of floor heating panels 2 are connected, the return pipes 5, 5 having a lower temperature approach each other and rise. Warmth can be increased. Further, most of the outward pipe 4 and the return pipe 5 except for the end portions 4a and 5a are built in the floor heating panel 2, so that the hot water pipe is nailed as in the conventional case where the hot water pipe is drawn under the floor. There is no fear of being hit.

In the present invention, the distance b between the adjacent return pipes 5 and the forward path 4 is set smaller than the distances c and d between the adjacent forward paths 4 and 4. In the example shown in FIG. 1, the distance between the return pipe 5 and one side 7 of the floor heating panel 2 is a, the distance between the return pipe 5 and the forward pipe 4 is b, and the distance between the forward pipes 4 and 4 is c and d. And the other side 6 of the outward pipe 4 and the floor heating panel 2
B <c = d, and a
<E. Thus, the outgoing pipe 4 having a high temperature
The intervals c and d between each other are large, and the interval b between the high-temperature outgoing pipe 4 and the low-temperature return pipe 5 is narrow, so that the low-temperature portion as viewed from the whole floor heating panel 2 is further reduced. Can be.

Next, when connecting the two floor heating panels 2 by the connecting pipes 11 and 12, as shown in FIG. 2, the horizontal hole 8 of one floor heating panel 2 and the other floor heating panel 2 are connected. The two floor heating panels 2 are laid side by side on the base floor while being shifted in the length direction so as to be aligned with the horizontal holes 8 of the two. At this time, two connecting pipes 1
Each of the ends 11a and 12a of the floor heating panel 2 is inserted into the downward groove 9 from the horizontal hole 8 of one floor heating panel 2, and the other end 11b and 12b is inserted into the horizontal hole 8 of the other floor heating panel 2.
From below into the downward groove 9. Thereafter, the worker puts his hand into the operation opening 10 from above the floor heating panel 2 and ends 11a and 12a of the two connecting pipes 11 and 12, and ends 4a and 4a of the outward pipe 4 and the return pipe 5 respectively. 5a, the outgoing pipes 4, 4 after the floor heating panel 2 is laid.
And the return pipes 5,5 are connected to each other by two connecting pipes 11,1.
2 can be easily connected. Therefore, the conventional header piping work under the floor can be omitted, and the headerless hot water floor heating device 1 excellent in workability can be provided. Furthermore, the floor heating panels 2 can be replaced one by one simply by removing the connecting pipes 11 and 12.

The upper surface of the operation opening 10 is shown in FIG.
It is closed with the lid 31 shown in FIG. In this example, FIG.
As shown in (b), inside the operation opening 10, a pair of support frames 32 each having a substantially triangular shape in a plan view supporting both corners of one side of the lid 31, and one side facing the one side. And a cross-shaped support frame 33 for supporting the
33 allows the lid 31 to be stably supported. After the floor heating panel 2 is laid, the operation opening 1
From 0, the connection state can be confirmed by performing a pressure resistance (water leakage) test of the connection portion between the connection pipes 11 and 12 and the hot water pipe 3, so that water leakage and the like can be reliably prevented, and the reliability of the construction is enhanced. In the event that water leaks, the lid 31 can be removed for inspection and repair, so that maintenance is excellent. Furthermore, since the hot water pipe 3 can be connected by the connecting pipes 11 and 12 after the floor heating panel 2 is laid,
Carpentry work for laying the floor heating panel 2 and piping work for laying the hot water pipe 3 can be separated from each other, and there is also an advantage that construction efficiency is further improved.

FIG. 3A shows an example in which four rows of floor heating panels 2 are arranged. A pipe insertion port 20 is provided on the short side of one floor heating panel 2, and a feed pipe 21 of the boiler 13 is inserted into the downward groove 9 of the floor heating panel 2 from the pipe insertion port 20, and The return pipe 22 is connected to the end, and is inserted into the downward groove 9 of the floor heating panel 2 from the same pipe insertion port 20 and connected to the end of the return pipe 5.
As a result, the hot water from the boiler 13 is supplied by the arrow A in FIG.
As shown by the arrow, each of the floor heating panels 2 sequentially passes through the outward pipe 4 in each floor heating panel 2 and then, as shown by an arrow B,
And sequentially returns through the return pipe 22 to the return pipe 22.

FIG. 5 shows the floor heating panel 2 of FIG.
Are arranged in two sets to form an eight-row assembly. Here, the pipe insertion port 2 provided in the floor heating panel 2 of the four-row assembly
5, the feed pipe 21 and the return pipe 22 of the boiler 13 are inserted, and hot water from the boiler 13 is branched in two directions by a T-shaped joint 30 shown in FIG. The feed pipes 4 and the return pipes 5 are supplied to the group. Thereby, one boiler 1
3, a large number of floor heating panels 2 can be heated at the same time, so that the thermal efficiency of the hot water floor heating device 1 can be improved and the structure can be simplified.

[0019]

As described above, according to the first aspect of the present invention, the hot water pipe including the outward pipe and the return pipe is built in the floor heating panel, and the two sides of the floor heating panel are opposed to each other. This is a hot water floor heating device in which each end of the forward pipe and the return pipe are respectively arranged.Since the total length of the forward pipe built into the floor heating panel is set longer than the total length of the return pipe, a simple design change Thus, it is possible to reduce the variation in the temperature in the floor heating panel in which the outward pipe and the return pipe are built, and it is possible to eliminate a portion having a low temperature when viewed from the entire floor heating panel.

According to a second aspect of the present invention, there is provided a floor heating panel in which a hot water pipe comprising a forward pipe and a return pipe is incorporated, and two ends of the forward pipe and the return pipe on opposite sides of the floor heating panel. Are arranged, and the distance between the adjacent return pipe and the outward pipe is set smaller than the distance between the adjacent outward pipe and the outward pipe. The temperature variation in the floor heating panel in which the floor heating panel and the return pipe are built can be reduced, and a portion having a low temperature when viewed from the whole floor heating panel can be eliminated.

According to a third aspect of the present invention, in addition to the effects of the first or second aspect, the floor heating panel is provided with lateral holes opened laterally on two opposite sides of the floor heating panel. Downward grooves which are open downward and communicate with the horizontal holes are provided on the back portions at both ends in the length direction, respectively. In each downward groove, each end of the forward pipe and the return pipe incorporated in the floor heating panel is provided. Each of the downwardly projecting portions is provided with an operation opening which is open above the floor heating panel and communicates with the downwardly extending groove in a part of each downward groove. Two connecting pipes for connecting each other are inserted from the horizontal holes of each floor heating panel into the downward grooves, and are connected to the respective ends of the outward pipe and the return pipe in the operation opening. Below the horizontal hole in the floor heating panel The two connecting pipes are inserted into the groove and the respective ends of the two connecting pipes and the respective ends of the outward pipe and the return pipe can be respectively connected from above the operation opening. After laying, the connecting work between the outgoing pipes and the returning pipes can be easily performed, and the conventional header piping work under the floor can be omitted. Thereby, it is possible to provide a headerless hot water floor heating device excellent in workability.

[Brief description of the drawings]

FIGS. 1A and 1B are explanatory views of a floor heating panel showing an example of an embodiment of the present invention.

FIG. 2 is an explanatory diagram in a case where floor heating panels are connected to the above.

FIG. 3A is a plan view showing a state in which a plurality of floor heating panels are arranged and connected to each other, and FIG. 3B is an enlarged view of a portion A in FIG.

4A is a cross-sectional view taken along line FF of FIG. 3, and FIG.
FIG. 7 is a sectional view taken along line EE of FIG.

5A is a plan view showing a state in which a plurality of floor heating panels are arranged and connected to each other, and FIG. 5B is an enlarged view of a portion B in FIG.

FIG. 6 is a sectional view of a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Hot-water floor heating apparatus 2 Floor heating panel 3 Hot-water pipe 4 Outgoing pipe 4a End part 5 Return pipe 5a End part 6,7 Opposite two sides 8 Sideways hole 9 Downward groove 10 Operation opening 11,12 Connecting pipe 11a, 12a End Part b Distance between return pipe and forward pipe c, d Distance between forward pipe and forward pipe

Claims (3)

[Claims] 1. A hot water pipe having a hot water pipe including a forward pipe and a return pipe inside a floor heating panel, and each end of the forward pipe and a return pipe arranged on two opposite sides of the floor heating panel, respectively. A hot-water floor heating device, wherein a total length of a forward pipe built into the floor heating panel is set to be longer than a total length of a return pipe. 2. A hot water pipe having a hot water pipe including a forward pipe and a return pipe inside the floor heating panel, and each end of the forward pipe and the return pipe disposed on two opposite sides of the floor heating panel, respectively. A hot-water floor heating device, characterized in that an interval between adjacent return pipes and outward pipes is set to be smaller than an interval between adjacent outward pipes. 3. The floor heating panel is provided with lateral holes opened laterally on two opposing sides of the floor heating panel, and the rear surfaces at both ends in the length direction of the floor heating panel are open downward and communicate with the horizontal holes. Each downward groove is provided, and in each downward groove, each end of the outward pipe and the return pipe incorporated in the floor heating panel respectively protrudes, and a part of each downward groove is above the floor heating panel. And two connecting pipes for connecting the outward pipes and the return pipes of the adjacent floor heating panels are respectively formed from the horizontal holes of the floor heating panels. The hot water floor heating device according to claim 1 or 2, wherein the hot water floor heating device is inserted into the downward groove and connected to each end of the outward pipe and the return pipe within the operation opening.