JP2001065887A - Hot water floor heater - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a hot water floor heater in which installation work and maintainability are enhanced by jointing hot water pipes built in a panel easily on the floor while preventing nailing of an inter-panel connection pipe surely. SOLUTION: In the hot water floor heater, a hot water pipe 2 comprising a supply pipe 3 and a return pipe 4 is built in a panel 1 and the hot water pipes 2 of a plurality of panels 1 are connected through inter-panel connection pipes. A piping tunnel 6 for pulling in an inter-panel connection pipe being connected with the hot water pipes 2 is formed in the panel 1 and a part of the piping tunnel 6 is opened above the panel 1 to form a pipe connection opening 7.

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 device, and more particularly to a hot water floor heating device provided with a panel having a built-in hot water pipe.

[0002]

2. Description of the Related Art As a conventional hot water floor heating system, a panel 1 '(mat) incorporating a hot water pipe is shown in FIG.
Some are installed on a base plywood 30 shown in (a) or between joists 31 shown in FIG. 18 (b), and a finishing floor material 32 is constructed on this panel 1 '.

As another conventional system, as shown in FIG. 19, there is a system in which a hot water pipe 2 is embedded in a panel 1 "in which a surface material is integrated. In this case, FIG.
There is an advantage that it does not take much time for the floor surface to warm as compared with the case where the finished floor material is separately provided as described above.

[0004]

However, the conventional FIG.
8 is a separate type in which the finished floor material 32 and the panel 1 'are separate from each other, or a type of the panel 1 "integrated with the surface material shown in FIG.
Connection with the feed pipe (entrance side, exit side) from the boiler,
Alternatively, the connection with the inter-panel feed pipe is made inside or under the surrounding floor material. For this reason, the number of connection points of pipes increases, and the pipe connection work takes time and labor, and the workability deteriorates. In addition, when the pipe connection is made inside the surrounding floor material as in the conventional case, or when the pipe is connected under the floor, the pipe connection work and maintenance after the construction are extremely troublesome, and especially under the floor. In the case of piping, it is necessary to provide a large number of opening holes in the base plywood 30 in order to drop the pipe under the floor, which increases the number of construction steps and makes construction more difficult. Further, as shown in FIG. 19, when the inter-panel feed pipes 33 protrude from the outside of the panel 1 ", the pipe connection portions of the inter-panel feed pipes 33 are located outside the panel 1". Panel feed pipe 3
When, for example, 3 is covered with a normal flooring material, there is a fear that a nail is accidentally hit by the inter-panel feed pipe 33 to leak water.

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and an object of the present invention is to make it possible to easily connect piping of a hot water pipe built in a panel from the floor, and to provide an easy connection between panels. Another object of the present invention is to provide a hot water floor heating device capable of reliably preventing nailing of a feed pipe and improving workability and maintainability. It is to provide a hot water floor heating device that can be.

[0006]

According to the present invention, a hot water pipe 2 comprising a forward pipe 3 and a return pipe 4 is built in a panel 1, and a panel-to-panel feed pipe 5 is provided.
A hot water floor heating device in which hot water pipes 2 of a plurality of panels 1 are connected to each other through a pipe, and a piping tunnel 6 for drawing an inter-panel feed pipe 5 connected to the hot water pipe 2 is installed in the panel 1. It is characterized in that a pipe connection port 7 is formed by forming a part of the pipe tunnel 6 above the panel 1 while forming the pipe tunnel. 6 and can be connected to the end of the hot water pipe 2 at the position of the pipe connection port 7, so that the pipe connection work can be easily performed from above the floor. Further, since the hot water pipe 2 and the inter-panel feed pipe 5 are stored in the panel 1 after the panel 1 is installed, there is a concern that a nail is erroneously driven into the inter-panel feed pipe protruding outside the panel as in the related art. In addition, water leakage can be prevented, and the inspection of the pipe connection portion from the pipe connection port 7 can be easily performed after the panel 1 is installed, so that the maintainability is also improved.

[0007] Further, L
It is preferable that the L-shaped joint pipe 8 be connected to the I-shaped joint portion 9 of the hot water pipe 2. In this case, the inter-panel feed pipe 5 is connected in the width direction of the pipe tunnel 6. Just slide the L-shaped joint pipe 8 to the I
The connection to the character joint 9 can be made easily and reliably.

The width c of the pipe tunnel 6 is
It is preferable to set the width to be wider than the combined external dimensions of at least two inter-panel feed pipes 5. In this case, at least two inter-panel feed pipes 5 are simultaneously (or one by one) inside the pipe tunnel 6. , And the inter-panel feed pipe 5 can be easily connected to the hot water pipe 2 while sliding in the width direction B of the pipe tunnel 6.

An outer pipe 3a disposed on the outer peripheral side of the panel 1 and an outer pipe 3
A hot water pipe 2 of two systems consisting of an inner pipe 4a disposed on the inner side than the inner pipe 4a is built in, and the outer pipe 3a is set as the outward pipe 3, the inner pipe 4a is set as the return pipe 4, and all of the plurality of panels 1 are mounted. And an inter-panel return pipe 10 for sequentially returning hot water to all of the outgoing pipes 3 to the return pipes 4 of each panel 1. Preferably
In this case, when a plurality of panels 1 are installed, a piping system in which the outer pipe 3a and the inner pipe 4a built in each panel 1 are connected by one passage,
The entrance side of the outer pipe 3a and the exit side of the inner pipe 4a in the first panel 1 can be arranged close to each other, and the outer pipe 3a is used as the outward path 3 so that heat can easily escape from the outer side of the panel 1. Can be raised in temperature.

Further, an inter-panel feed pipe 5 for connecting hot water pipes 2 of a plurality of panels 1 so as to form a single passage inside the pipe tunnel 6 and sequentially supplying hot water to each hot water pipe 2. And one end of the return pipe 4 of the last panel 1
Panel return pipe 1 for returning the hot water from the last panel 1 to the first panel 1 side substantially in a straight line
0 is preferably stored. In this case, only one panel return pipe 10 is required, and the connection of the panel return pipe 10 between the panels 1 becomes unnecessary. In addition, by returning the cooled water to a straight line, the length of the low-temperature inter-panel return pipe 10 becomes the shortest distance,
The low temperature part of the panel 1 through which the panel return pipe 10 passes can be reduced as much as possible.

Further, it is preferable that a bar-shaped reinforcing member 11 is inserted from the pipe connection port 7 into an empty space S in the pipe tunnel 6 after the piping of the inter-panel feed pipe 5. The empty space S in the pipe tunnel 6 can be reduced by the
Becomes strong against the load from the top of the

A plurality of grooves 12 are formed on either the upper surface or the lower surface of the rod-shaped reinforcing member 11 at intervals e in the longitudinal direction C of the rod-shaped reinforcing member 11, and the distance e between the concave grooves 12 is increased. It is preferable to make the width dimension L smaller than the width dimension L of the surface layer piece 13 for closing the pipe connection port 7. In this case, the rod-shaped reinforcing member 11 itself can have flexibility by the concave groove 12, and the rod-shaped reinforcing member Pipe connection port 7 while bending 11
Can be easily inserted into the narrow empty space S.

The bar-shaped reinforcing member 11 includes a reinforcing piece 11a disposed near the pipe connection port 7 of the pipe tunnel 6,
Reinforcing piece 11b arranged at a position distant from pipe connection port 7
In this case, the insertability of the bar-shaped reinforcing member 11 is further improved, and the reinforcing piece 11a can be provided integrally or separately on the back surface of the surface layer piece 13.

The panel 1 is constructed by disposing a surface layer material 15 on the upper surface of the base material 14, and cuts off the upper surface of the base material 14 to accommodate the forward tube 3, and the return tube 4. Is preferably formed so that the depth E1 of the groove 50 on the outward path is deeper than the depth E2 of the groove 51 on the return path. Insulation layer 5 such as an air layer between the outward pipe 3 on the side and the surface material 15
By providing 5, it is possible to suppress the amount of heat radiation from the outward pipe 3 to the surface material 15, whereby the difference between the amount of heat radiation from the outward pipe 3 to the surface material 15 and the amount of heat radiation from the return pipe 4 is reduced. The temperature unevenness in the panel 1 can be reduced by reducing the number.

In the groove 50 on the outward path side, the panel 1
It is preferable that the depth E1 'of the groove portion 50a on the outward path corresponding to the corner portion 1a is smaller than the depth E1 of the groove portion 50a on the outward path, and in this case, the panel 1 in which the temperature is unlikely to rise is increased. Corner portion 1a can be sufficiently warmed.

The depth E2 'of the return-side groove portion 51a corresponding to the pipe connection portion 1b of the panel 1 where the hot water pipes 2 are gathered is determined by changing the depth E2' of the other return-side groove portion 51a. It is preferable to make the depth greater than the depth E2. In this case, it is possible to suppress the heat radiation from the return pipe 4 at the pipe connection portion 1b of the panel 1, which is likely to be high in temperature, and to reduce the temperature difference from other parts of the panel 1. Can be.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below based on embodiments shown in the accompanying drawings.

As shown in FIG. 1, the hot water floor heating apparatus according to the present embodiment includes an outward pipe 3 and a return pipe 4 for circulating hot water in a floor heating panel 1 (hereinafter referred to as "panel 1"). The hot water pipe 2 is embedded. This panel 1
Is formed by adhering a surface layer material 15 to the surface of a base material 14 and a frame material 16 via a soaking material such as an aluminum foil 17. On the outer surface of the frame member 16, fitting recesses 41 are respectively formed, and the panel 1 adjacent via the nut 19 is formed.
They can be connected in a plane.

In the panel 1, there is formed a pipe tunnel 6 for drawing an inter-panel feed pipe 5 connected to the hot water pipe 2. Here, as shown in FIG. 2, the pipe tunnel 6 is formed over the entire length of the base material 14 of the panel 1 in the width direction A, and the length of the pipe tunnel 6 in the length direction B
Pipe insertion ports 1 provided on both sides of panel 1
8 respectively. Each pipe insertion port 18 is opened in the lateral direction, so that the inter-panel feed pipe 5 can be inserted into the pipe tunnel 6 from the lateral direction of the panel 1 through the pipe insertion port 18.

The pipe connection port 7 is formed in a part of the surface material 15 of the panel 1. The pipe connection port 7 is for opening a part of the pipe tunnel 6 above the panel 1, and the pipe connection port 7 is covered with a surface piece 13 so as to be openable and closable. The pipe connection port 7 allows a pipe connection between the inter-panel feed pipe 5 inserted into the pipe tunnel 6 and the connection end of the hot water pipe 2 protruding into the pipe tunnel 6. Here, a recess 20 is formed facing the portion of the pipe tunnel 6 below the pipe connection port 7, and the I-shaped joint 9 of the hot water pipe 2 is arranged in the recess 20 in a protruding state. I have. In addition, the recess 20 is opened in a substantially truncated shape so as to become wider toward the entrance, thereby facilitating the connection of the pipes.
The corner portions of the surface layer piece 13 can be stably supported by the substantially triangular rising portions 21 provided on both sides of the surface piece 13.

In order to connect the hot water pipes 2 of the adjacent panels 1, the surface piece 13 is opened, and the inter-panel feed pipe 5 is passed through the pipe tunnel 6 provided in the panel 1. Hot water pipe 2 protruding the L-shaped joint portion 9 into the recess 20
To the I-shaped joint part 10 of FIG. Then, after confirming that there is no water leakage after the pressure resistance (water leakage) test,
The surface layer piece 13 can be closed and finished. In this way, the pipe connection work can be easily performed from above the floor via the pipe connection port 7. In addition, since a part of the pipe tunnel 6 is opened on the floor to form the pipe connection port 7, a large number of opening holes for inserting pipes are provided in the basement of the floor as in the related art.
Since there is no need to perform pipe connection inside the adjacent floor material or pipe connection under the floor, the number of construction steps can be reduced, the time and labor required for the construction can be reduced, and the workability can be improved. Also, when fixing the floor heating panel 1 to the floor substrate, the hot water pipe 2
Does not protrude from panel 1 and inter-panel feed pipe 5
Is also housed in the pipe tunnel 6 provided in the panel 1, so that there is no fear that a nail is accidentally driven into the inter-panel feed pipe protruding to the outside of the panel and a water leak occurs, as in the prior art. High reliability of the floor heating system can be obtained. In addition, after the floor heating panel 1 is installed, the pipe connection between the inter-panel feed pipe 5 and the hot water pipe 2 can be performed, so that the carpentry work and the pipe work can be separated, and the construction can be further reduced.

Further, after the construction, in the case of troubles such as breakdown, the surface piece 13 is opened, and the inspection of the pipe connection 19 from the pipe connection port 7 can be easily performed, so that the maintainability is improved.

Further, in this embodiment, since the aluminum foil 17 (FIG. 1) is adhered over the entire back surface of the surface material 15, not only the heat from the hot water pipe 2 but also the heat from the panel-to-panel feed pipe 5 is obtained. There is also an advantage that the temperature can be transmitted to the end of the surface layer material 15 through the aluminum foil 17 and the temperature rise of the end of the panel 1 can be increased, which was not possible to raise the temperature conventionally.

In the present embodiment, the type in which the panel 1 and the surface material 15 are separated from each other is exemplified. However, the present invention is not limited to this, and the present invention is similarly applied to a type in which the surface material is integrated. In this case, the pipe tunnel 6 may be formed in the panel 1, and the surface of the panel 1 may be partially cut out to form the pipe connection port 7 which is opened upward. Thus, the temperature raising property can be further improved.

FIGS. 3 and 4 show another example of the inter-panel feed pipe 5. FIG. Here, an L-shaped joint pipe 8 is connected to the end of the inter-panel feed pipe 5 to facilitate the pipe connection, and the L-shaped joint pipe 8 is connected to the I-shaped joint 9 of the hot water pipe 2. Is what is done. That is, when the piping tunnel 6 is formed to be elongated along the width direction A of the panel 1, the piping tunnel 6
It is required to connect the hot water pipe 2 and the inter-panel feed pipe 5 in a narrow space inside. Therefore, in the present embodiment, by connecting the L-shaped joint pipes 8 to both ends of the inter-panel feed pipe 5, the slide pipe 5 between the panels can be slid in the direction shown by the arrow A in FIG. It can be easily connected to the I-shaped joint 9. In other words, the upper limit of the width L of the pipe connection port 7 is about 75 mm due to the pattern of the floor material (panel 1), and the connection direction between the inter-panel feed pipe 5 and the hot water pipe 2 is assumed to be in the width direction A. If so, it is too narrow to connect and difficult to connect. However, since the dimension d in the length direction B ₁ of the pipe connection port 7 (the length direction of the panel 1) can be large, the connection direction of the inter-panel feed pipe 5 can be changed by using the L-shaped joint pipe 8. can be varied in the longitudinal direction B _1, connection is likely to. In addition, in this way, the width dimension L of the pipe connection port 7 can be reduced, which is very preferable in terms of design. The L-shaped joint pipe 8 may be connected to the inter-panel feed pipe 5 in advance, or may be connected after passing the inter-panel feed pipe 5 through the piping tunnel 6.

The number of inter-panel feed pipes 5 is not limited to two, but may be three or more. For example, as shown in FIG. 6, for example, two inter-panel feed pipes 5 may be housed in an overlapping manner. Here, as shown in FIG. 5, when the inter-panel feed pipes 5 having different lengths are overlapped with each other, the external dimension is a, the projecting dimension of the L-shaped joint pipe 8 is b, and the width dimension of the piping tunnel 6 is c ( 6), c is set to (a
+ B). This gives 2
The inter-panel feed pipes 5 are simultaneously (or one by one) inserted into the pipe tunnel 6 and easily slid in the direction shown by the arrow B in FIG. Connection work becomes easy. FIG. 6
C and D in the middle indicate the flow direction of the warm water.

FIG. 7 shows another example of the arrangement of the hot water pipes 2. In this example, two hot water pipes are provided on one panel 1, including an outer pipe 3 a provided along the outer peripheral side of the panel 1 and an inner pipe 4 a provided inside the outer pipe 3 a. 2 are built-in. The outer pipe 3a is defined as the outward pipe 3 and the inner pipe 4a is defined as the return pipe 4.
Use as In the example shown in FIG. 7, the outer pipe 3a serving as the outward pipe 3 is disposed substantially in a U shape along the outer peripheral portion of the panel 12, and the inner pipe 4a serving as the return pipe 4 is located inside the outer pipe 3a. Are arranged in a substantially U-shape, and both ends of the outer pipe 3a and both ends of the inner pipe 4a protrude into the pipe tunnel 6, respectively.

FIG. 8 shows an example in which a plurality of panels 1 of FIG. 7 are connected. The number of panels 1 is not particularly limited. Here, three panels 1 are in the length direction B
The positions of the piping tunnels 6 between the adjacent panels 1 are different so that the piping tunnels 6 of each panel 1 are arranged substantially in a straight line. Further, hot water is supplied to all the outgoing pipes 3 of the plurality of panels 1 via the inter-panel feed pipes 5, and the hot water that has passed through all the outgoing pipes 3 is returned to the return pipes 4 of each panel 1. . In other words, the feed pipe from the boiler (entrance side, exit side)
In the pipe tunnel 6 of the first panel 1 to which is connected the feed pipes (inlet and outlet) from the boiler are respectively drawn. E in the figure indicates the starting point of the feed pipe. A plurality of inter-panel feed pipes 5 and a plurality of inter-panel return pipes 10 are inserted into the pipe tunnel 6 of each panel 1. One end of the outer pipe 3a of the first panel 1 is connected to the inlet side of the feed pipe from the boiler. The other end of the outer pipe 3a of the first panel 1 is sequentially connected to the inter-panel feed pipe 5 → the outer pipe 3a of the center panel 1 → the inter-panel feed pipe 5 → the outer pipe 3a of the last panel 1. The tip of the outer pipe 3a of the last panel 1 is connected to the inner pipe 4a of the last panel 1 via a U-shaped tube 41, and furthermore, the inter-pan feed pipe 5 →
The inner pipe 4a of the center panel 1 is connected in order to the inter-pan feed pipe 5 → the inner pipe 4a of the first panel 1, and the tip of the inner pipe 4a of the first panel 1 is connected to the outlet side. .

As described above, the outer pipe 3a and the inner pipe 4a built in each panel 1 are connected by sequentially connecting the panels 1 by using the inter-panel feed pipe 5 and the inter-panel return pipe 10. A piping system connected by one passage can be provided. Moreover, since the entrance side of the outer pipe 3a and the exit side of the inner pipe 4a in the first panel 1 are arranged close to each other, the feed pipes (entrance side, exit side) from the boiler are arranged at one place ( It is only necessary to start up at the location indicated by E in FIG. 8), and the workability is further improved. The outer pipe 3a is connected to the outward pipe 3
Since the inner pipe 4a is used as the return pipe 4, it is possible to enhance the temperature rise on the outer peripheral side of the panel 1 where heat easily escapes,
The entire panel 1 can be more uniformly heated and heated. In addition, the outer pipe 3a and the inner pipe 4a are adjacent to each other within one panel 1, so that temperature variation can be suppressed. In particular, in the case of FIG. 8, the outer pipe 3a having the highest temperature and the inner pipe 4a having the lowest temperature in the first panel 1 are adjacent to each other, and the outer pipe 3a having the second highest temperature in the central panel 1 is adjacent to the outer pipe 3a. The innermost pipe 4a having the second lowest temperature is next to the inner panel 4a, and the last panel 1
In the inside, the outer circumference pipe 3a having the third highest temperature and the inner circumference pipe 4a having the third lowest temperature are adjacent to each other, so that the balance of the respective temperatures is improved, and a temperature almost close to the average temperature is obtained in each panel 1. And the temperature difference between the panels can be minimized.

FIG. 9 shows a modification of FIG. 8, in which each hot water pipe 2 of a plurality of panels 1 is placed in a pipe tunnel 6.
A plurality of inter-panel feed pipes 5 connected to form a passage for supplying hot water sequentially to each hot water pipe 2, and one end connected to the return pipe 4 of the last panel 1 and the last panel 1 And a single panel return pipe 10 for returning the hot water to the first panel 1 side in a straight line. Other configurations are the same as those of the embodiment of FIG. In the example shown in FIG. 9, the feed pipes (inlet and outlet) from the boiler are respectively drawn into the piping tunnel 6 of the first panel 1 to which the feed pipes (inlet and outlet) from the boiler are connected. Have been. E in the figure indicates the starting point of the feed pipe. A plurality of inter-panel feed pipes 5 and one linear inter-panel return pipe 10 are inserted into the piping tunnel 6 of each panel 1. One end of the outer pipe 3a of the first panel 1 is connected to the inlet side of the feed pipe from the boiler. The other end of the outer pipe 3a of the first panel 1 makes a U-turn at a location indicated by d in FIG. 9 and is connected to the inner pipe 4a of the first panel 1. Further, the inter-panel feed pipe 5 → the center panel 1 Outer pipe 3a → Inner pipe 4a of central panel 1 → Inter-pan feed pipe 5 → Outer pipe 3a of last panel 1 → U
The pipe is sequentially connected to the inner pipe 4a of the last panel 1, and the tip of the inner pipe 4a of the last panel 1 is connected to the outlet side via a straight inter-panel return pipe 10.

As a result, in addition to the same effects as the embodiment of FIG.
Since the inner circumference pipe 4a of the last panel 1 and the outlet side are connected at the shortest distance, the connection of the panel return pipe between the panels 1 becomes unnecessary. Therefore, the number of connection points of the pipes is small, the pressure loss of hot water is reduced, and energy saving can be achieved. In addition, by returning the cooled water to a straight line, the length of the low-temperature inter-panel return pipe 10 becomes the shortest distance, so that the low-temperature portion of the panel 1 through which the inter-panel return pipe 10 passes can be formed. It can be reduced as much as possible.
Are arranged in a straight line along the edge of the panel 1, so that the temperature of the edge of the panel 1 can be prevented from lowering.

FIG. 10 shows a case where a bar-shaped reinforcing member 11 is inserted into the empty space S in the pipe tunnel 6 from the pipe connection port 7 after the inter-panel feed pipe 5 has been piped. As shown in the embodiments of FIGS. 5 and 6, when the inter-panel feed pipe 5 is slid and connected to the hot water pipe 2, a large width dimension c (FIG. 6) of the pipe tunnel 6 is secured. Need arises. For this reason, there is a problem that the pipe connection port 7 on the upper part of the pipe tunnel 6 becomes large, and the strength of the panel 1 becomes weak at this portion. Therefore, in the present embodiment, the rod-shaped reinforcing member 11 is inserted from the pipe connection port 7 into the empty space S formed in the pipe tunnel 6 in a state where the pipe is connected through the inter-panel feed pipe 5 into the pipe tunnel 6. Since the empty space S in the piping tunnel 6 can be reduced by the rod-shaped reinforcing material 11, the panel 1 becomes strong against the load from the upper part of the piping tunnel 6, and the panel 1 strength at the piping tunnel 6 portion. Can be increased. Further, by making the width dimension f of the bar-shaped reinforcing member 11 slightly smaller than the empty space S, the insertability of the bar-shaped reinforcing member 11 can be improved. For example, in the case where a feed pipe (entrance side, exit side) from the boiler is started below the pipe connection port 7 of the panel 1, it is necessary to make a hole in the base plywood of the panel 1 below the surface layer piece 13. However, by making the space e between the concave grooves 12 of the bar-shaped reinforcing member 11 slightly smaller than the width dimension L of the pipe connection port 7, the insertability of the bar-shaped reinforcing member 11 is improved, and The bar-shaped reinforcing member 11 can be bridged over the hole, and the surface piece 13 (FIG. 1) that closes the pipe connection port 7 can be reinforced.

Further, as shown in FIG.
A plurality of concave grooves 12 may be formed on the lower surface of 1 at intervals e in the length direction C of the bar-shaped reinforcing member 11. FIG.
As shown in FIG.
May be formed. These concave grooves 12 allow the rod-shaped reinforcement 11 itself to have flexibility, and the rod-shaped reinforcement 1
1 can be easily inserted from the pipe connection port 7 into the narrow empty space S. In addition, rod-shaped reinforcing material 1
In consideration of the insertability of No. 1, it is desirable that the interval e between the concave grooves 12 is slightly smaller than the width dimension L of the surface layer piece 13 closing the pipe connection port 7. In addition, the rod-shaped reinforcing member 11 is
By cutting at the position 2, when the first panel 1 is inserted into the pipe tunnel 6, the surplus portion of the bar-shaped reinforcing member 11 can be used for the next panel 1, and waste of material can be eliminated.

Further, in order to further facilitate the insertion of the bar-shaped reinforcing member 11, as shown in FIG. 12 (b), the bar-shaped reinforcing member 11 is connected to a reinforcing member arranged near the pipe connection port 7 of the pipe tunnel 6. It may be divided into a piece 11a and a reinforcing piece 11b disposed at a position away from the pipe connection port 7. In addition, the reinforcing piece 11a arranged near the pipe connection port 7 of the pipe tunnel 6 may be provided integrally or separately on the back surface of the surface layer piece 13, and when provided integrally, the surface layer piece 1
By simply closing 3, the reinforcing piece 11a can be arranged near the pipe connection port 7, and the insertability of the bar-shaped reinforcing material 11 can be further improved.

FIGS. 13 to 15 show still another embodiment. In the panel 1 in which the surface layer material 15 is disposed on the upper surface of the base material 14 via a soaking material such as an aluminum foil 17, A groove 50 on the outward path for accommodating the outward pipe 3 and an inward groove 51 for accommodating the inward pipe 4 are formed by notching the upper surface of the groove. Is deeper than the depth E2. Other configurations are shown in FIGS.
This embodiment is the same as the above embodiment, and only different points will be described. In the panel 11 of this example, as shown in FIG. 14, the upper surface of the base material 14 is notched deeply in most of the panel 1 except for a corner portion 1a and a pipe connection portion 1b, which will be described later.
0 is formed, and the groove 51 on the return path is formed so as to be notched to be shallower than the groove 50 on the outward path. In this case, the outward groove 50 extends substantially in a U-shape in plan view along the outer peripheral side of the panel 11, and the outward conduit 3 is embedded in the outward groove 50. It has a depth E <b> 1 at which a heat insulating layer 55 such as an air layer can be formed with the foil 17. on the other hand,
The return-side groove 51 extends in a substantially U-shape in plan view along the inside of the outward-side groove 50, and connects the return pipe 4 to the return-side groove 5.
1 has a depth E2 at which the return pipe 4 can be disposed in close contact with the aluminum foil 17 in a state where the return path pipe 4 is embedded therein.

Thus, a heat insulating layer 55 such as an air layer can be provided between the high-temperature side outgoing pipe 3 into which hot water from the boiler enters and the aluminum foil 17. The amount of heat radiation can be suppressed. On the other hand, by adhering the return pipe 4 through which the return warm water having a low temperature passes to the aluminum foil 17, heat radiation from the return pipe 4 to the surface material 15 can be promoted. Thereby, the difference between the amount of heat radiation from the outward pipe 3 and the amount of heat radiation from the return pipe 4 to the surface material 15 can be reduced, and the temperature unevenness in the panel 1 can be reduced. Moreover, since it is only necessary to partially change the depths E1 and E2 of the grooves filling the forward pipe 3 and the return pipe 4, it is possible to realize a low-cost floor heating system without temperature unevenness.

Conventionally, when a plurality of floor heating panels 1 in which the hot water pipes 2 are embedded integrally are connected, the number of panels 1 that can be connected is limited due to uneven temperature in the panels 1 (for example, up to about three sheets). In particular, the amount of heat released at the side end is increased by the hot water immediately after entering the outgoing pipe 3 from the boiler, while the temperature difference with the other parts is reduced due to the drop in the temperature of the return hot water in the return pipe 4. As the size increases, the amount of heat radiation from the forward pipe 3 increases, so that the temperature of the return hot water in the return pipe 4 decreases accordingly, and the thermal efficiency deteriorates.

In this embodiment, as shown in FIG. 15, when a plurality of panels 1 are arranged side by side, as shown in FIG.
4 is used as the first panel 1 (panel 1 for starting up piping), thereby suppressing the heat radiation from the outward pipe 3 in the first panel 1 to thereby provide another panel 1 '. Can be reduced, and the number of connected sheets (three or more) can be increased. Further, by making the groove 50 on the outward path deeper, it is possible to suppress the heat radiation of the outward pipe 3 immediately after entering the hot water from the boiler, and to improve the thermal efficiency. It is possible to realize a small floor heating system.

Further, as shown in FIG. 16, the groove portion 5 on the outward path corresponding to the corner 1a of the panel 1 (FIG. 13).
It is desirable that the depth E1 ′ of Oa is formed shallower than the depth E1 (FIG. 14) of the other outward groove portion 50a. The corner 1a of the panel 1 is separated from the bent portion of the outward pipe 3 as shown by M in FIG. Therefore, in this example, FIG.
As shown in the figure, the depth E1 'of the groove portion 50a on the outward path is made shallow so that the outward path 3 can be disposed in close contact with the aluminum foil 17. As a result, it is possible to sufficiently heat a floor portion, such as the corner portion 1a, of the panel 1 where the temperature is unlikely to rise due to heat radiation from the forward pipe 3, and a temperature difference from other floor portions other than the corner portion 1a. Can be reduced, and as a result, the temperature unevenness in the panel 1 can be reduced.

On the other hand, the pipe connection portion 1b of the panel 1 (FIG. 1)
In 3), a total of four hot water pipes, that is, both ends 3b, 3b of the forward pipe 3 and both ends 4b, 4b of the return pipe 4 are gathered, so that the temperature tends to increase in this part. Therefore, in this example, as shown in FIG. 17, the depth E2 'of the groove portion 51a on the return path side corresponding to the pipe connection portion 1b of the panel 1 is provided.
Is made deeper than the depth E2 (FIG. 14) of the other return-side groove portion 51a, so that both end portions 4b, 4b of the return-path pipe 4 are formed.
A heat-insulating layer 55 such as an air layer can be provided between the metal foil and the aluminum foil 17 so that not only heat radiation from the outgoing pipe 3 but also heat radiation from the return pipe 4 can be suppressed. As a result, it is possible to reduce the temperature difference between the portion where the hot water pipes, which are the portions where heat radiation is to be suppressed, and the other portion of the panel 1 are reduced, so that the temperature unevenness in the panel 1 can be reduced. Note that the number of hot water pipes gathering at the pipe connection part 1b is not limited to four.

In the examples of FIGS. 14, 16 and 17, the heat insulating layer 55 between the hot water pipe 2 and the aluminum foil 17 is used.
However, the present invention is not limited to this. For example, a heat insulating material such as urethane foam may be filled between the hot water pipe 2 and the aluminum foil 17, and in this case, a larger heat insulating effect is obtained. Will be able to

[0042]

As described above, according to the first aspect of the present invention, the panel has a built-in hot water pipe including a forward pipe and a return pipe, and the hot water pipes of a plurality of panels are provided via inter-panel feed pipes. A hot water floor heating device in which pipes are connected to each other, wherein a pipe tunnel for drawing an inter-panel feed pipe connected to the hot water pipe is formed in a panel, and a part of the pipe tunnel is formed above the panel. The pipe connection port is formed by opening the pipe between the panels, so that the inter-panel feed pipe can be passed through the pipe tunnel and connected to the end of the hot water pipe at the pipe connection port, facilitating pipe connection work from the floor. As well as providing a large number of opening holes for dropping pipes into the floor base as in the past,
Since there is no need to connect a pipe under the floor, the number of construction steps is reduced, and the time and labor required for the construction can be saved, and the workability can be improved. Also, after the panel is installed, the hot water pipe and the inter-panel feed pipe are housed inside the panel respectively, so there is no risk of accidentally driving nails into the inter-panel feed pipe that protrudes outside the panel as in the past, and water leakage Can be prevented, and high reliability of the hot water floor heating system can be obtained. Furthermore, after the panel is installed, pipe connection between the inter-panel feed pipe and the hot water pipe is possible, so that carpentry work and piping work can be separated, saving construction work and connecting pipes after construction. Inspection of the pipe connection can be easily performed from the mouth, so maintenance is also improved.

According to a second aspect of the present invention, in addition to the effect of the first aspect, an L-shaped joint pipe is connected to an end of the inter-panel feed pipe, and the L-shaped joint pipe is an I-shaped joint of a hot water pipe. The L-shaped joint pipe can be easily and reliably connected to the I-shaped joint part of the hot water pipe only by sliding the inter-panel feed pipe in the width direction of the piping tunnel because it is connected to the pipe. Therefore, the pipe connection operation can be easily performed even in a narrow space of the pipe tunnel, the width dimension of the pipe connection port can be reduced, and the design can be improved.

According to a third aspect of the present invention, in addition to the effect of the first or second aspect, the width of the piping tunnel is wider than the outer dimension of at least two inter-panel feed pipes. , So that at least two inter-panel feed pipes are inserted into the pipe tunnel at the same time (or one by one), and the inter-panel feed pipe slides in the width direction of the pipe tunnel and is easily inserted into the hot water pipe. Will be able to connect to Therefore, the pipe connection operation in the pipe tunnel is facilitated, and the workability is improved.

According to a fourth aspect of the present invention, in addition to the effect of the first aspect, an outer pipe disposed on the outer peripheral side of the panel and an inner pipe disposed inside the outer pipe are provided on one panel. Two hot water pipes are built-in, and the outer pipe is used as the outward pipe, the inner pipe is used as the return pipe, and the inter-panel feed pipe that sequentially supplies hot water to all the outward pipes of multiple panels, And a return pipe between panels for sequentially returning hot water after passing through the forward pipe of each panel to the return pipe of each panel. Therefore, when a plurality of panels are installed, a feed pipe between panels and a return pipe between panels are provided. The outer pipe and the inner pipe built in each panel are connected by a single passage using a pipe, and the inlet of the outer pipe in the first panel and the inner pipe are connected. Can be arranged close to each other, and by using the outward pipe as the outward path, the temperature rise on the outer peripheral side of the panel where heat can easily escape can be increased, and the entire panel can be more uniformly heated and heated. Become like Also one
Since the outer pipe and the inner pipe are adjacent to each other in one panel, a temperature almost equal to the average temperature can be obtained in each panel, which is more effective in preventing temperature variations.

According to a fifth aspect of the present invention, in addition to the effect of the first aspect, each hot water pipe of a plurality of panels is connected so as to form one passage inside the pipe tunnel. An inter-panel feed pipe for sequentially supplying hot water to the first panel, and an inter-panel return pipe for connecting one end to the return pipe of the last panel and returning the hot water from the last panel almost straight to the first panel side. Is stored,
Only one panel return pipe is required, and connection of the panel return pipe between panels becomes unnecessary. Thereby, the number of connection points of the pipe is small, the pressure loss of the hot water is reduced, and energy saving can be achieved. In addition, by returning the cooled water to a straight line, the length of the cold pipe between panels becomes the shortest distance, so that the cold section of the panel through which the cold pipe passes can be minimized. In addition, it is possible to prevent temperature variations within the effective use area of the panel.

According to a sixth aspect of the present invention, in addition to the effect of the first aspect, a bar-shaped reinforcing material is inserted from a pipe connection port into an empty space in a pipe tunnel after the inter-panel feed pipe is piped. Therefore, the bar-shaped reinforcing member can reduce the empty space in the piping tunnel, and can increase the load from the upper part of the piping tunnel, thereby increasing the panel strength at the piping tunnel portion.

According to a seventh aspect of the present invention, in addition to the effect of the sixth aspect, a plurality of concave grooves are provided on either the upper surface or the lower surface of the bar-shaped reinforcing member at intervals in the longitudinal direction of the bar-shaped reinforcing member. Since it is formed, the interval between the grooves is made smaller than the width dimension of the surface layer piece for closing the pipe connection port, so that the rod-shaped reinforcing material itself can have flexibility by the grooves,
The bar-shaped reinforcing member can be easily inserted into the narrow empty space from the pipe connection port while bending the bar-shaped reinforcing member, and the insertability of the bar-shaped reinforcing member is improved. By cutting the bar-shaped reinforcing material along the concave groove, waste of material can be eliminated.

According to an eighth aspect of the present invention, in addition to the effect of the sixth aspect, the bar-shaped reinforcing member is provided with a reinforcing piece disposed near the pipe connection port of the pipe tunnel and a portion separated from the pipe connection port. The reinforcing piece is divided into the reinforcing pieces arranged on the surface piece, so that the insertability of the bar-shaped reinforcing material is further improved, and the reinforcing piece can be provided integrally or separately on the back surface of the surface layer piece, and the surface layer piece is reinforced. Meanwhile, the strength of the panel can be improved.

According to a ninth aspect of the present invention, in addition to the effect of the first aspect, the panel is formed by arranging a surface layer material on the upper surface of the base material, and cutting out the upper surface of the base material to form the outward pipe. A groove on the forward path to store the gas and a groove on the return path to store the return pipe are formed, and the depth of the groove on the forward path is made deeper than the depth of the groove on the return path, so the high-temperature side into which hot water from the boiler enters A heat insulation layer such as an air layer can be provided between the outgoing pipe and the surface material, and the amount of heat radiation from the outgoing pipe to the surface material can be suppressed.
It is possible to reduce the difference between the amount of heat released from the outward pipe and the amount of heat released from the return pipe to the surface material, and it is only necessary to partially change the depth of the groove filling the forward pipe and the return pipe. The temperature unevenness in the panel can be reduced at a low cost. Furthermore, even when arranging a plurality of panels side by side, the heat efficiency is improved by suppressing the heat radiation of the outward pipe,
It is possible to realize a floor heating system with less temperature unevenness without being limited by the number of panels.

According to a tenth aspect of the present invention, in addition to the effect of the ninth aspect, of the grooves on the outward path side, the depth of the outward groove section corresponding to the corner portion of the panel is increased by the other outward path. Shallower than the depth of the groove part, so that the corners of the panel where the temperature is unlikely to rise can be sufficiently warmed, and the temperature difference with other parts of the panel can be reduced, resulting in more uneven temperature in the panel. Can be reduced.

According to an eleventh aspect of the present invention, in addition to the effect of the ninth aspect, of the grooves on the return path, the depth of the groove on the return path corresponding to the pipe connection portion of the panel where the hot water pipes are collected is increased. , Because it was deeper than the depth of the groove on the other return side,
The heat radiation from the return pipe can be suppressed at the pipe connection portion of the panel, which is likely to be at a high temperature, and the temperature difference from other parts of the panel can be reduced. As a result, the unevenness in temperature in the panel can be further reduced.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an example of an embodiment of the present invention.

FIG. 2 is a plan view showing a state in which the surface piece is removed.

FIG. 3 is an explanatory diagram of another example of the panel-to-panel feed pipe.

FIG. 4 is a plan view illustrating a connection state of an inter-panel feed pipe in FIG. 3;

FIG. 5 is a front view of a state in which two inter-panel feed pipes are stacked.

FIG. 6 is a plan view illustrating a connection state of two inter-panel feed pipes in FIG. 5;

FIG. 7 is an explanatory diagram of another embodiment.

8 is a plan view illustrating a state where a plurality of panels of FIG. 7 are installed.

FIG. 9 is a plan view illustrating still another embodiment.

FIG. 10 is a plan view illustrating still another embodiment.

FIG. 11 is a perspective view of the rod-shaped reinforcing member according to the third embodiment.

FIGS. 12 (a) and (b) are perspective views of another example of the rod-shaped reinforcing member of the above.

13A and 13B are a plan view and a side view illustrating still another embodiment.

FIG. 14 is a cutaway perspective view taken along line XX of FIG. 13 (b).

FIG. 15 is a plan view illustrating a state where a plurality of panels are installed.

FIG. 16 is a cutaway perspective view taken along line YY of FIG. 13 (b).

FIG. 17 is a cutaway perspective view along the line ZZ of FIG. 13 (b).

FIGS. 18A and 18B are explanatory diagrams of a conventional example.

FIG. 19 is an explanatory diagram of another conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Panel 2 Hot water pipe 3 Outgoing pipe 4 Return pipe 5 Inter-panel feed pipe 6 Piping tunnel 7 Piping connection port 8 L-shaped joint pipe 9 I-shaped joint part 10 Inter-panel return pipe 11 Bar-shaped reinforcing material 12 Concave groove 13 Surface layer piece

Claims (11)

[Claims] 1. A hot water floor heating device, wherein a hot water pipe comprising a forward pipe and a return pipe is built in a panel, and the hot water pipes of a plurality of panels are connected to each other via an inter-panel feed pipe, In addition to forming a pipe tunnel for drawing an inter-panel feed pipe connected to the hot water pipe in the panel, a part of the pipe tunnel is opened above the panel to form a pipe connection port. Hot water floor heating system. 2. The hot water according to claim 1, wherein an L-shaped joint pipe is connected to an end of the inter-panel feed pipe, and the L-shaped joint pipe is connected to an I-shaped joint of the hot water pipe. Floor heating system. 3. The hot water floor heating device according to claim 1, wherein the width of the piping tunnel is set to be wider than the external size of at least two inter-panel feed pipes. . 4. A single panel has two built-in hot water pipes including an outer pipe arranged on the outer peripheral side of the panel and an inner pipe arranged inside the outer pipe. Is the forward pipe, the inner pipe is the return pipe, the inter-panel feed pipe that supplies hot water sequentially to all the forward pipes of multiple panels, and the hot water that has passed through all the forward pipes is sequentially returned to the return pipe of each panel. The hot water floor heating device according to claim 1, further comprising a panel return pipe for returning. 5. An inter-panel feed pipe for connecting hot water pipes of a plurality of panels so as to form a single passage inside the pipe tunnel to supply hot water sequentially to each hot water pipe, and one end of the pipe being a last pipe. 2. A hot water floor according to claim 1, further comprising a panel return pipe connected to the return pipe of the panel for returning hot water from the last panel to the first panel in a substantially straight line. Heating system. 6. The hot-water floor heating apparatus according to claim 1, wherein a bar-shaped reinforcing material is inserted from a pipe connection port into an empty space in the pipe tunnel after the inter-panel feed pipe is piped. 7. A surface layer for forming a plurality of grooves at intervals in the longitudinal direction of the bar-shaped reinforcing material on either the upper surface or the lower surface of the bar-shaped reinforcing material and closing the space between the grooves at the pipe connection port. 7. The hot water floor heating device according to claim 6, wherein the width of the piece is smaller than the width of the piece. 8. The bar-shaped reinforcing member is divided into a reinforcing piece disposed near a pipe connection port of a pipe tunnel and a reinforcing piece disposed at a position distant from the pipe connection port. The hot water floor heating device according to claim 6. 9. A panel formed by disposing a surface layer material on an upper surface of a base material, wherein the upper surface of the base material is cut out to accommodate a forward path tube, and a return path groove for storing a return path tube. The hot water floor heating device according to claim 1, wherein the depth of the groove on the outward path is made greater than the depth of the groove on the return path. 10. The groove on the outward path corresponding to the corner portion of the panel among the grooves on the outward path, the depth of the groove on the outward path is smaller than the depth of the other grooves on the outward path. A heated floor heating device as described. 11. The groove on the return path, corresponding to the pipe connection portion of the panel where the hot water pipes gather, of the grooves on the return path has a depth greater than the depth of the other return groove. The hot water floor heating device according to claim 9, wherein