JPH08312976A - Floor heating system and device - Google Patents

Abstract

PURPOSE: To provide a floor heating system which can be easily constructed and which is excellent in the heating efficiency and also provide an economical heating device. CONSTITUTION: A plurality of double-tube structures 1, 2, 3, 4 are arranged in the scope of a floor heating. Respective both ends are connected to main pipes 5, 6. When water is filled in the main pipes 5, 6, it is also filled in the double tube structures 1, 2, 3, 4. An inner tube 11 is inserted in an outer tube 10 with a clearance in the double-tube structure and a heating wire 12 is inserted in the inner tube 11 without clearance. Accordingly the radiated heat from the heating wire 12 is radially emitted from the axial line to transfer it to the inner tube. Since water is filled in the outer tube 10, water exists between the inner and outer tubes and heat is transfered to the inner tube 11 to heat water. As the water temperature rises, the temperature of outer tube goes up gradually and further the heat is radiated outward from the outer tube. And hence, the finished floor face installed above the tubes is heated for floor heating.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a floor heating system for heating from below the floor and a floor heating device used for this floor heating.

[0002]

2. Description of the Related Art Conventionally, a floor heating system has been constructed by circulating a heated heat medium liquid in an elongated seamless pipe (seamless pipe) arranged under the floor.
The heat released from the heat carrier liquid warms the floor surface from below the floor, or the heat generated from the heating wire is transmitted to the floor surface by energizing a thin heating wire arranged under the floor. There was something I did. Of the devices used in the system as described above, those that circulate the heat medium liquid include first a seamless pipe made of a material having good thermal conductivity and a seamless pipe to be installed under the floor. By the buried panel of, the circulation path of the heat medium liquid under the floor is provided, and in order to heat the heat medium liquid to be circulated in this seamless pipe, a boiler is provided outside the circulation path and the circulation is performed. A pump for circulating the heat carrier liquid was provided in the middle of the passage. On the other hand, in the case of the heating wire, a continuous heating wire covered with an insulator is arranged and either directly housed in a groove in the buried panel or made of concrete to fix the installation position. The floor was composed.

[0003]

However, in the above-described floor heating system, in which the heating medium liquid is circulated, the temperature gradually decreases while the heated heating medium liquid circulates. In the first half of the circulation path (position near the boiler), the temperature of the bed where the heat medium liquid passes is high, but in the second half of the circulation path (position far from the boiler), the temperature of the floor where the heat medium liquid passes increases. And, it was not possible to achieve sufficient floor heating. Then, in order to spread the heat released from the heat medium liquid to the entire floor, the seamless pipe is arranged in a wavy shape while being curved or bent, and therefore, the installation work of the seamless pipe is prolonged. Was there. Further, in a floor heating system using a heating wire, it is difficult to heat the heating wire to a predetermined temperature because the temperature of the heating wire does not rise easily. Further, in order to heat the heating wire to a sufficient degree for heating, much power consumption is required, and the running cost is very high.

On the other hand, in the floor heating device described above, a pump for forcibly circulating the heat medium liquid in the seamless pipe is used in the one for circulating the heat medium liquid, and the circulation path is used. If the temperature is long or the heat medium liquid is a viscous substance, the load on the pump becomes large, and therefore a lot of cost is required for the maintenance of the pump. Further, a boiler is used to heat the heat transfer medium liquid, but the heating by this boiler is usually for heating the whole heat transfer medium liquid stored in the boiler, and does not circulate the heat transfer medium liquid. Since it is heated together, there is a lot of unnecessary heating, and the heat energy of the part that is involved in this heating is lost.Also, heat is released from the heat medium liquid even on the way from the boiler to the circulation path. , This also lost heat energy, which was against the current problem of energy saving. Furthermore, in the case of the heating wire, when it is directly stored in the groove of the buried panel, the heat of the heating wire escapes from the buried panel and is difficult to be transmitted to the floor surface. Since the surface temperature decreases, it was difficult to warm the floor surface with the heating wire whose temperature did not rise. Also, when the heating wire is placed at a desired position with concrete, the heat from the heating wire can be transferred to the concrete, but since it can be used when the floor surface is finished with concrete, the construction work becomes large-scale. , It was difficult to construct in a general household.

In view of the above points, the present invention provides a floor heating system which is easy to construct and has high heating efficiency.
It is an object of the present invention to provide an economical floor heating system that enables this floor heating system.

[0006]

DISCLOSURE OF THE INVENTION According to the present invention, a double pipe structure consisting of an outer pipe and an inner pipe is arranged under the floor, and water is provided between the outer pipe and the inner pipe in the double pipe structure. Alternatively, the floor heating system is characterized in that a heating medium liquid is sealed and a heating element is inserted inside the inner tube.

In the present invention, a plurality of double pipe structures consisting of an outer pipe and an inner pipe are arranged in parallel under the floor, and water is provided between each outer pipe and inner pipe of these double pipe structures. Alternatively, the floor heating system is characterized in that a heating medium liquid is sealed and a heating element is inserted into each inner tube.

It is preferable that the heating element is inserted into the inner tube without a gap. It is preferable that the inner tube is configured as an outer skin of a heating element.

According to the present invention, two parent pipes provided in parallel, an outer pipe connected to opposite sides of the parent pipes, and an outer pipe inserted into the outer pipes and connected on opposite sides of the parent pipe. A gist of a floor heating device comprising an inner pipe and a heating element inserted in the inner pipe.

The heating element is preferably a heating wire.
The heating wire is preferably one continuous heating wire. It is preferable that the heating wire is a plurality of continuous heating wires.

According to the present invention, two parent pipes provided in parallel, a plurality of outer pipes whose both ends are connected to opposite sides of the parent pipes and which are orthogonal to the parent pipes, and inside each outer pipe A floor heating device is characterized in that it comprises an inner pipe that is inserted into the main pipe and that is connected on opposite sides of the main pipe, and a heating wire that is inserted into the inner pipe.

It is preferable that the heating wire is one continuous heating wire. It is preferable that the heating wire is a plurality of continuous heating wires. The heating wire is an independent heating wire for each inner tube, and may be connected in parallel.

According to the present invention, two parent pipes provided in parallel, a plurality of outer pipes having both ends connected to opposite sides of the parent pipes and being orthogonal to the parent pipes, and inside each outer pipe And an inner pipe connected to the parent pipe on opposite sides of the main pipe, and one or more continuous heating wires inserted into the inner pipe, the heating wires being connected in series to a power source. The floor heating system is characterized by.

According to the present invention, two parent pipes provided in parallel, a plurality of outer pipes having both ends connected to opposite sides of the parent pipes and being orthogonal to the parent pipes, and inside each outer pipe And an inner pipe connected to the parent pipe on the side not facing each other, and a plurality of heating wires individually inserted into each inner pipe, the heating wires being connected in parallel to a power source. The feature is the floor heating system.

[0015]

With the above-described structure, in the floor heating system, first, the inner pipe of the double pipe structure is heated by the heating element, and the heat released at this time causes the heat to be emitted outside the inner pipe. The water or heat medium liquid sealed inside the outer tube is heated. Therefore, since the heat of the heating element is used to warm the water or the heat transfer liquid, the loss thereof is reduced. In addition, in water, the specific heat is high, so the temperature rise due to heating is gradual, but on the contrary, after the temperature rises, it does not easily decrease, and the entire outer tube is maintained in a high temperature state. be able to.

On the other hand, since the heating medium liquid and the like are not circulated, the floor heating device does not require a boiler or a pump, and maintenance is simple. Even if a heating wire is used as the heating element, the heating wire does not directly release heat for floor heating, but the heating wire heats the water or the heating medium liquid to raise the temperature of the water or the heating medium liquid. Since the floor heating is performed in accordance with this, the amount of heat for warming the water or the heat medium liquid is sufficient for the time being, and the amount of heat for warming the entire floor is not necessary. That is, since heating cannot be performed until the water or the heat medium liquid warms up, the rising speed is slow, but if the temperature of the water or the heat medium liquid rises, the heating can be efficiently performed. In addition, the heat generated by the heating wire is not transferred to the buried panel, etc., and is reliably transferred to the water or heat medium liquid that surrounds the inner tube, and there is no air flow inside the inner tube, so the heating wire is not The temperature can rise over time.

[0017]

Embodiments of the floor heating system of the present invention will be described below with reference to the drawings. In this embodiment, as shown in FIG. 1, a plurality of double pipe structures 1, 2, 3 and 4 are provided within a range where floor heating is to be performed, and both ends of the double pipe structures 5 and 6 are main pipes. And the main pipes 5 and 6 are filled with water,
Water can be filled also in the double-pipe structure 1, 2, 3, 4. The main pipes 5, 6 are provided in parallel, and the double pipe structure 1, 2, 3, is provided between both the main pipes 5, 6.
4 are provided. And each double pipe structure 1, 2,
As shown in FIG. 2, the inner pipe 1 and the inner pipe 3 are provided inside the outer pipe 10.
1 is inserted with a gap, and the heating wire 12 is inserted into the inner tube 11 without any gap. Therefore, the heat released by the heat generation of the heating wire 12 is radiated in the radial direction around the axis of the heating wire 12, but this heat is transmitted to the inner pipe 11 without escaping to others. Then, as described above, the outer pipe 10 is filled with water, that is, the hollow portion between the outer pipe 10 and the inner pipe 11 is filled with water, and the heat transferred to the inner pipe 11 causes This water will be heated. In this way, as the water is heated and the temperature rises, the outer tube 10 gradually increases.
The temperature can be raised, and heat is further emitted from the outer pipe 10 to the outside to heat the finishing floor surface provided above it to heat the floor.

Next, the floor heating system of this embodiment will be described. First, the double pipe structure 1, 2, 3, 4 and the main pipe 5,
The structure of No. 6 and the connection of both will be described. As shown in FIG. 3, the parent pipe 5 (6) is provided with an outer pipe connecting portion 31 and an inner pipe connecting portion 32 protruding in opposite directions with the axis of the parent pipe 5 (6) interposed therebetween. The outer pipe connecting portion 31 and the outer pipe 10 can be joined by an adhesive between the inner side of the outer pipe 10 and the outer side of the outer pipe connecting portion 31. On the other hand, the inner tube 1
Regarding the joining between 1 and the inner pipe connecting portion 32, since the inner pipe 11 is inserted after connecting the outer pipe 10, it is difficult to use an adhesive, and therefore, welding is performed at an appropriate position. It is connected. Here, since it is not necessary to connect the heating wire 12 inserted in the inner pipe 11,
The inner tube 11 is in a freely movable state. In addition,
Regarding each of the above-mentioned connections, in the present embodiment, it is assumed that the outer pipe 10 and the inner pipe 11 are made of a metal material such as copper in order to improve the thermal conductivity, and therefore a welding connection method is adopted. However, for each connection, it is sufficiently possible to use various joints and the like in addition to the adhesive and welding. By connecting the outer pipe 10 and the inner pipe 11 to the parent pipes 5 and 6 in this manner, the outer pipe 10 is connected between both the parent pipes 5 and 6 as shown in FIG. The pipe 11 and the parent pipes 5 and 6 are connected to each other while being inserted into the outer pipe 10 with a gap and having the same axis.
Through at right angles to its axis. Therefore, both ends of the inner pipe 11 are opened outside the parent pipes 5 and 6, and the hollow portion of the inner pipe 11 is continuous with the outer space of the outer pipe 10 and the parent pipes 5 and 6. As a result, as shown in FIG. 1, the heating wire 1 inserted into the inner pipe 10
2, the portion passing through the inside of the double pipe structure 1, 2, 3, 4 and the portion exposed to the outside can be made continuous, so that one heating wire should be arranged in a wavy shape. Can be done.

Here, the underfloor structure for floor heating is shown in FIG.
In general, the floorboard 22 is provided on the joist 21 and the heat insulating sheet 23 is laid on the floorboard 22.
The embedded panel 20 is provided. Then, a heating element serving as a heat source is buried in the buried panel 20, and the finishing floor 24 is stretched thereon. The buried panels 20 are arranged immediately below the finishing floor 24 without any gap, and the grooves provided in the buried panels 20 are arranged so as to be continuous with each other. The surface finish floor 24 is then nailed. The embedded panel 20 is made of a foamed resin having a low foaming rate as described above and is relatively hard, so that it can be struck by a nail or the like. Further, when the nail or the like is hammered in, the position where the groove of the buried panel 20 is not provided is naturally selected. When the finishing floor 24 is nailed, a so-called joisting method may be used in which a thin joist is separately provided between the buried panels 20 on the floor plate 22 and the nail is hit to the joist. .

In such an underfloor structure, in this embodiment, a buried panel 20 as shown in FIG. 6 is used. That is, the buried panel 20 is the buried panel 2 for the outer pipe.
0a and the main buried panel 20b. Further, the outer pipe embedding panel 20a is provided with linear grooves exclusively, and the double pipe structures 1, 2, ...
(Fig. 1) can be arranged, and one of the parent pipe embedded panels 20b can be provided with the heating pipes 12 (Fig. 1) continuous with the parent pipes 5, 6 (Fig. 1). It has become. It should be noted that the buried pipes 20a and 20b are both made of a metal material, so that the outer pipe 10
The heat released from (FIG. 2) can be transferred to the finishing floor 24 (FIG. 5). Buried panel 2 for outer pipe as described above
0a and the buried pipe for parent pipe 20b, the double pipe structure 1, 2, ..., As shown in FIG.
The parent pipes 5 and 6 and the continuous heating wire 12 can be arranged at desired positions. In addition, the double pipe structure 1, 2, ...
The water injection tank 40 and the drain valve 41 are connected, and when water is enclosed in the outer pipe 10 of the double pipe structure 1, 2, ... The drain valve 41 can be removed during the period when heating is not performed. Also, the heating wire 12
Is connected to a power supply 42 to be supplied with electric power. The power is turned on / off by a switch (not shown), and the heating temperature can be adjusted by adjusting the amount of supplied power by a controller (not shown). It is also possible to manage this adjustment by a control device linked to the temperature sensor.

Needless to say, various embodiments can be adopted without departing from the spirit of the present invention. For example, the double-pipe structures 1, 2, ... And the parent pipes 5, 6 are shown in a cylindrical shape, but this is a typical and general shape, and the shape can be changed according to the construction situation. It is possible to adopt a modified version. Further, in the description of the embodiments, it is described that the outer tube 10 is filled with water, but the outer tube 10 is not limited to water, and it is also included that a heating medium liquid such as an ethylene glycol-based solution is filled. ,further,
Depending on the case, it may be one in which another substance capable of heat transfer is enclosed. Further, in the embodiment, the inner pipe 11
Although only the one in which the heating wire 12 is inserted inside is shown, the one in which the inner tube 11 and the heating wire 12 are integrally configured may be inserted into the outer tube 10.

[0022]

As described above, according to the present invention, the double pipe structure including the outer pipe and the inner pipe is arranged under the floor, and the double pipe structure is provided between the outer pipe and the inner pipe. Since the floor heating system is characterized in that water or a heat medium liquid is sealed and a heating element is inserted inside the inner tube, the heating element provided inside the inner tube is separated from the outer tube. Will heat the water or heat transfer liquid of
Even when the amount of heat generated by the heating element is small, the heat stored inside the outer tube is released and amplified to the extent that sufficient heating is possible. Therefore, it is possible to provide a floor heating system with high heating efficiency.

In the present invention, a plurality of double pipe structures consisting of an outer pipe and an inner pipe are arranged in parallel under the floor, and water is provided between each outer pipe and inner pipe of these double pipe structures. Alternatively, since the floor heating system is characterized in that the heating medium liquid is sealed and the heating element is inserted into each inner tube, a plurality of double tube structures are arranged at close positions. By being installed, the underfloor can be heated to a high temperature. Therefore, sufficient heat can be released for floor heating.

By inserting the heating element into the inner tube without a gap, the transfer of heat emitted from the heating element to the inner tube is improved. Further, if the inner tube can be configured as the outer skin of the heating element, the heat transfer can be further improved.

According to the present invention, two parent pipes provided in parallel, an outer pipe connected to the opposite sides of the parent pipes, and an outer pipe inserted into the outer pipe and connected on the non-opposing sides of the parent pipes. Since the floor heating device characterized by comprising an inner tube and a heating element inserted in the inner tube is the gist, it is possible to realize the floor heating system described above, and the inside of the inner tube is hollow. Since it is in a state, a heating wire or other heating element can be inserted if necessary, and there is a space inside the outer pipe and outside the inner pipe, and this space is continuous with the hollow part of the parent pipe. Therefore, when water or the heat medium liquid is injected into the parent pipe, the water or the heat medium liquid can be sealed in the space inside the outer pipe and outside the inner pipe. The heat released from the heating element is sufficiently transmitted to the inner tube, and the heat heats the inner tube, which is enclosed in the outer tube, that is, arranged so as to surround the outer side of the inner tube. It is possible to heat the water or the heating medium liquid to be heated. Further, the water or the heat medium liquid having a high temperature can raise the temperature of the outer pipe and transfer the temperature from the outer pipe to the floor surface. Therefore, since a heating wire, whose temperature rise is generally suppressed by a slight amount of air flow, is inserted into an inner tube surrounded by water or a heat carrier liquid, heat is prevented from flowing out to the surroundings, Alternatively, the temperature can be stabilized by a heat medium liquid.

When the heating element is a heating wire, the heating medium can be started and stopped by operating the switch of the power source without worrying about leakage of the heating medium liquid, etc., which simplifies the method of use and allows the boiler to be used. Also, since a pump is not required, running costs can be reduced and an economical floor heating system can be realized. Moreover, if the heating wire is a single continuous heating wire, the wiring is not complicated and the construction is simple. Moreover, unlike the case where the seamless pipe is provided, no delicate bending or bending work is required, so that the construction is extremely easy. On the contrary, if the heating wire is made up of a plurality of continuous heating wires, the temperature can be adjusted according to the number of power supply lines. Furthermore, in a plurality of inner tubes, an independent heating wire is used for each inner tube, and by connecting each of these heating wires in parallel to the power source, a limited range of each of the arranged heating wires is provided. Can be energized only, can be partially heated, and can be partially repaired.

[Brief description of drawings]

FIG. 1 is an explanatory diagram showing an entire embodiment of a floor heating system.

FIG. 2 is an explanatory view showing the structure of a double pipe structure.

FIG. 3 is an explanatory diagram showing a connection state between an outer pipe, an inner pipe and a parent pipe.

FIG. 4 is a sectional view taken along line XX.

FIG. 5 is a perspective view showing an outline of an underfloor structure.

FIG. 6 is a perspective view of a buried panel.

FIG. 7 is an explanatory diagram showing the entire room.

[Explanation of symbols]

 1, 2, 3, 4 Double pipe structure 5, 6 Parent pipe 10 Outer pipe 11 Inner pipe 12 Heating wire 31 Outer pipe connection part 32 Inner pipe connection part A room

Claims (14)

[Claims] 1. A double pipe structure comprising an outer pipe and an inner pipe is arranged under the floor, and water or a heat medium liquid is sealed between the outer pipe and the inner pipe in the double pipe structure, A floor heating system characterized in that a heating element is inserted inside the inner tube. 2. A plurality of double pipe structures consisting of an outer pipe and an inner pipe are arranged in parallel under the floor, and water or heat is provided between each outer pipe and the inner pipe of these double pipe structures. A floor heating system in which a medium liquid is sealed and a heating element is inserted into each inner tube. 3. The floor heating system according to claim 1, wherein the heating element is inserted into the inner tube without a gap. 4. The floor heating system according to claim 1, wherein the inner pipe is formed as an outer skin of a heating element. 5. Two parent pipes provided in parallel, an outer pipe connected to opposite sides of the parent pipe, and an inner pipe inserted into the outer pipe and connected on opposite sides of the parent pipe. When,
A floor heating device comprising a heating element inserted into the inner pipe. 6. The floor heating system according to claim 5, wherein the heating element is a heating wire. 7. The floor heating system according to claim 6, wherein the heating wire is one continuous heating wire. 8. The floor heating apparatus according to claim 6, wherein the heating wire is a plurality of continuous heating wires. 9. Two parent pipes provided in parallel, a plurality of outer pipes having both ends connected to opposite sides of the parent pipes, and being orthogonal to the parent pipes, and inserted into each outer pipe. A floor heating device comprising: an inner pipe connected on the non-opposing side of the parent pipe; and a heating wire inserted into the inner pipe. 10. The floor heating system according to claim 9, wherein the heating wire is one continuous heating wire. 11. The floor heating system according to claim 9, wherein the heating wire is a plurality of continuous heating wires. 12. The floor heating system according to claim 9, wherein the heating wire is an independent heating wire for each inner tube and is connected in parallel. 13. Two parent pipes provided in parallel, a plurality of outer pipes whose both ends are connected to opposite sides of the parent pipes, and which are orthogonal to the parent pipes, and inserted into each outer pipe. Characterized in that it is composed of an inner pipe connected on opposite sides of the parent pipe and one or a plurality of continuous heating wires inserted into the inner pipe, the heating wires being connected in series to a power source. Floor heating system. 14. Two parent pipes provided in parallel, a plurality of outer pipes having both ends connected to opposite sides of the parent pipes, and being orthogonal to the parent pipes, and inserted into each outer pipe. And an inner tube connected on the non-opposing side of the parent tube, and a plurality of heating wires individually inserted for each inner tube,
A floor heating system comprising the heating wires connected in parallel to a power source.