JP3561122B2 - Thermal storage floor heating unit - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a regenerative floor heating unit that heats a building from under the floor.
[0002]
[Prior art]
A floor heating device arranges a heating element such as a heater below a floor material to heat the room from under the floor. In addition, the regenerative floor heating system is a floor heating system that stores heat of the heating element in the heat storage material at night and radiates the heat during the day. This has the advantage that it can be achieved.
[0003]
The above-mentioned regenerative floor heating devices include construction methods such as a concrete burial construction method, a joist construction method, and a free access floor method. Among them, a conventional configuration example of a regenerative floor heating device using a concrete burying construction method will be described with reference to FIGS. In the concrete burying construction method, first, a heat insulating material 4 is arranged on a concrete slab 13 serving as a foundation under a floor of a house or the like, and a number of heat storage materials 5 wrapped in a band-like sheet material are arranged and placed thereon, A heater wire 6 is laid on these heat storage materials 5 in a meandering manner. Then, the mortar 14 is poured into the mortar 14 and the wire mesh 15 shown in FIG. 7 is laid. The heater wire 6 and the heat storage material 5 are embedded in the mortar 14 and solidified. To complete. It should be noted that the concrete burying construction method is sometimes called a wet construction method because the mortar 14 is poured in this way with respect to a dry construction method such as a joist construction method.
[0004]
The above-mentioned regenerative floor heating device can directly transfer the heat generated from the heater wire 6 to the room via the floor finishing material 7 and temporarily store the heat in the lower heat storage material 5. Therefore, the heater wire 6 is energized at night, and the heat stored in the heat storage material 5 during this time is gradually radiated into the room through the floor finishing material 7 during the day, thereby using a cheap electricity rate at night. Can be. Further, the heat insulating material 4 is for preventing the heat from the heater wire 6 and the heat storage material 5 from escaping to the lower slab 13, so that the room can be efficiently heated.
[0005]
[Problems to be solved by the invention]
However, the above-mentioned conventional heat storage type floor heating apparatus using the concrete burying method requires complicated work because the heat insulating material 4, the heat storage material 5, and the heater wire 6 must be separately carried in and laid out at the site. There was a problem that on-site workability deteriorated.
[0006]
The present invention has been made in view of such circumstances, and by previously embedding a heating element, a heat storage material, and a heat insulating material in a block of mortar or the like, a heat storage type that can improve workability on site. It aims to provide a floor heating unit.
[0007]
[Means for Solving the Problems]
That is, in order to solve the above-mentioned problem, the regenerative floor heating unit according to the first aspect has a heat insulating material laminated inside a mortar and / or concrete block formed on a reinforcing plate and above the heat insulating material. embeds a heat storage material and the heat generating element, on an end portion of the mortar and / or the concrete blocks, makes a connection between the units, the concrete boxes with PF tube for inserting the lead wires of the temperature sensor It is characterized by having .
[0008]
According to the first aspect of the present invention, the heating element, the heat storage material, and the heat insulating material are embedded in the block such as the mortar, so that the block is carried in to the site and mounted, and the connection is completed only by connecting the wiring. Can be done. The reinforcing plate is a bottom plate for reinforcing this block of mortar or the like to prevent cracks or the like from occurring during transportation or the like.
[0009]
Further, the regenerative floor heating unit according to claim 2 is characterized in that the reinforcing plate has a container shape in which a side wall covering a periphery of a mortar and / or concrete block is erected from a peripheral portion.
[0010]
According to the second aspect of the present invention, since the reinforcing plate is in the shape of a container, mortar or the like can be poured into the container and solidified, and a mold for forming a block of the mortar or the like is not required.
[0011]
Further, the regenerative floor heating unit according to claim 3 is characterized in that a protruding member projecting inward from a side wall of the reinforcing plate is fitted into a mortar and / or concrete block.
[0012]
According to the third aspect of the present invention, since the projecting member projecting from the side wall is bitten and held inside the block of mortar or the like, it is possible to prevent the block from peeling off and falling off from the reinforcing plate due to vibration or the like. be able to.
[0013]
Further, the heat storage type floor heating unit according to claim 4 embeds a heat insulating material and a heat storage material and a heating element laminated above the heat insulating material inside a mortar and / or concrete block, and also inside the block. It embeds the reinforcing member, further, an end portion of the mortar and / or the concrete blocks, makes a connection between the units, to have the concrete boxes with PF tube for inserting the lead wires of the temperature sensor It is characterized by.
[0014]
According to the fourth aspect of the present invention, since the heating element, the heat storage material, and the heat insulating material are embedded in the block such as the mortar, the construction is completed only by carrying the block to the site and mounting it and connecting the wiring. Can be done. A reinforcing material is embedded inside the mortar or the like to reinforce the block and prevent cracks or the like from occurring during transportation or the like.
[0015]
Furthermore, the regenerative floor heating unit according to claim 5 is characterized in that the reinforcing member is a reinforcing bar.
[0016]
According to the invention of claim 5, it is possible to reliably reinforce a block made of mortar or the like using a reinforcing bar having strong rigidity and a certain degree of plasticity. A plurality of rebars may be arranged in parallel or, for example, a plurality of rebars may be arranged so as to cross each other.
[0017]
Further, in the regenerative floor heating unit according to claim 6, the block is constituted by a lower layer portion made of a slab in which the reinforcing bar is embedded, and an upper layer portion made of mortar, wherein the heat insulating material, the heat storage material, and the heating element are It is characterized by being embedded in an upper layer portion made of this mortar.
[0018]
According to the invention of claim 6, the strength of the block can be reliably improved by forming the lower layer portion with the slab in which the reinforcing bar is embedded.
[0019]
Further, the regenerative floor heating unit according to claim 7 is characterized in that the reinforcing member is a wire mesh.
[0020]
According to the invention of claim 7, by embedding a mesh-like wire mesh inside a block of mortar or the like, it is possible to reliably prevent the block from cracking or the like.
[0021]
In the present invention, the vertical relationship between the stacked heat generating elements and the heat storage material is not particularly limited, but it is usually preferable to arrange the heat generating elements on the heat storage material. Further, the heat storage material may be arranged above and below the heating element so as to sandwich the heat storage material.
[0022]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0023]
1 to 3 show a first embodiment of the present invention. FIG. 1 is a longitudinal sectional front view showing a configuration of a regenerative floor heating unit. FIG. 2 is a plan view of a regenerative floor heating unit. 3 is a longitudinal sectional front view showing another configuration of the regenerative floor heating unit. Components having the same functions as those of the conventional example shown in FIGS. 6 and 7 are denoted by the same reference numerals.
[0024]
In the conventional example shown in FIGS. 6 and 7, the mortar 14 is poured under the floor on which the heater wires 6 and the heat storage material 5 are arranged and laid, thereby forming a heat storage type floor heating device of a concrete burying construction system. On the other hand, in the regenerative floor heating unit 1 according to the present embodiment (corresponding to claim 1), the mortar block 3 is formed on the iron plate 2 in advance, and the heat insulating material 4 The heat storage material 5 and the heater wire 6 are stacked and embedded. The mortar block 3 is obtained by mixing cement or the like with sand, adding water, and hardening the kneaded mortar into a block shape. Further, the iron plate 2 is a rectangular reinforcing plate for reinforcing the mortar block 3, thereby preventing the mortar block 3 from being cracked during transportation.
[0025]
In order to manufacture the regenerative floor heating unit 1 of the present embodiment, first, the heat insulating material 4 and the heat storing material 5 are placed on the iron plate 2, and the heater wire 6 is laid in a meandering manner thereon. FIG. 1 shows a case where only one set of the heat insulating material 4, the heat storage material 5, and the heater wire 6 are arranged and laid, but as shown in FIG. 2, a plurality of sets (three sets in FIG. 2) of the heat insulating material 4 and the heat storage material 5 and the heater wire 6 can be arranged and laid side by side. Next, the periphery of the iron plate 2 is surrounded by a mold (not shown), and mortar is poured into the mold. When the mortar is solidified to form the mortar block 3, the mold is removed to complete the regenerative floor heating unit 1.
[0026]
The heater wire 6 is obtained by covering the resistance wire with, for example, an ethylene propylene rubber insulator and covering it with a heat-resistant vinyl sheath. Further, the heater wire 6 may be meandered in advance, and an appropriate portion may be stopped with a resin tape or the like, or a planar heating element sandwiched between sheet materials or the like may be laid on the heat storage material 5. Further, instead of such a heater wire 6, a planar heating element using a PTC heating element (positive temperature coefficient heating element) can be used. The PTC heating element is used by sandwiching a heating layer formed by screen printing or the like between sheet materials such as PET (polyethylene terephthalate). When the heater wire 6 is used, temperature control by a closed loop using a temperature sensor is necessary. When a PTC heating element is used, the temperature control by an open loop is performed by the automatic temperature control function of the PTC heating element. Becomes possible. Further, instead of the heater wire 6 and the PTC heating element which generate heat by the electric heating action, another heating element using induction heating or the like can be used.
[0027]
The heat storage material 5 only needs to temporarily accumulate the heat generated by the heater wire 6 and gradually release the heat over time, so that the heat storage material 5 simply has a large heat capacity (a heat storage material using only sensible heat). Although it is possible to use a latent heat type heat storage material that can store heat without temperature rise using latent heat, it is more efficient. Use things. In particular, in the present embodiment, a paraffin-based latent heat type heat storage material that can maintain a solid state without liquefaction even in a heat storage state is used. The heat insulating material 4 is for preventing the heat released from the heater wire 6 and the heat storage material 5 from escaping downward, such as urethane foam or glass wool containing a large amount of air having low thermal conductivity. It is preferable to use
[0028]
In the regenerative floor heating unit 1 having the above-described configuration, a predetermined number of the regenerative floor heating units are arranged and placed on a concrete slab serving as a foundation under the floor of a house or the like, and wiring is connected. Then, if necessary, the mortar is poured from above and solidified to perform construction. Therefore, this regenerative floor heating unit 1 can be completed only by being carried into the site and installed on the slab in a state where the heater wire 6, the thermal storage material 5, and the heat insulating material 4 are integrated by the block of the mortar 14, so that the construction is completed. , Construction time can be greatly reduced. The slab under the floor exposes only the peripheral portion for mounting and supporting each regenerative floor heating unit 1, and a heat insulating material is embedded in other portions to further enhance the heat insulating effect. You can also. Above the regenerative floor heating unit 1 installed in this manner, a floor finishing material 7 is placed on the floor similarly to the conventional example shown in FIG.
[0029]
In addition, as shown in FIG. 2, each of the regenerative floor heating units 1 has concrete boxes 3 a formed on both sides of one end of the mortar block 3, and wiring between the adjacent regenerative floor heating units 1 is performed. The connection is made in the concrete box 3a. Between the concrete boxes 3a on both sides of each mortar block 3, a cable 8 for wiring a heater wire 6 and a PF tube 9 for passing a lead wire for a temperature sensor are embedded in advance. Therefore, the heater wires 6 can be connected in parallel by connecting the cables 8 of the adjacent regenerative floor heating units 1 sequentially in the concrete box 3a and finally connecting the cables 8 to the power supply. In addition, the lead wires from the temperature sensors of each regenerative floor heating unit 1 can be sequentially connected to the temperature control device through the PF pipe 9.
[0030]
The regenerative floor heating unit 1 performs floor heating by transmitting heat from the heater wire 6 to the room via the mortar 14 and the floor finishing material 7 as in the related art. Further, by supplying electricity to the heater wire 6 at night, heat is stored in the heat storage material 5, and heat from the heat storage material 5 is released into the room throughout the day, thereby making it possible to use a cheap power rate.
[0031]
In the above-described embodiment, the flat iron plate 2 is used as the reinforcing plate. However, as shown in FIG. 3, a side wall 2a may be provided upright on a peripheral portion of the iron plate 2 to form a container. (Corresponds to item 2). When the side walls 2a are provided in this manner, the mortar can be poured into the mortar block 3 without using a mold. In addition, since the surroundings of the mortar block 3 are also protected by the side walls 2a, there is no possibility that the mortar block 3 will be cracked even if it is roughly handled during transportation. The side wall 2a may be provided with a projecting member 10 projecting inward (corresponding to claim 3). In this case, when the mortar is poured into the side wall 2a to form the mortar block 3, the protruding member 10 is fitted therein, thereby preventing the mortar block 3 from peeling off from the iron plate 2 or the side wall 2a. Can be.
[0032]
In the first embodiment, the case where the iron plate 2 is used as the reinforcing plate has been described. However, as long as the plate material has a certain degree of rigidity, the present invention is not limited to such an iron material, and other metal plates or wooden plate materials may be used. Can also be used. The shape of the reinforcing plate is not limited to a rectangular shape. Further, in the first embodiment, the case where the heat insulating material 4 is directly placed on the iron plate 2 has been described, but it is also possible to float the insulating material 4 to some extent above the iron plate 2 and completely embed the inside of the mortar block 3. .
[0033]
4 and 5 show a second embodiment of the present invention. FIG. 4 is a longitudinal sectional front view showing the configuration of a regenerative floor heating unit, and FIG. 5 shows another configuration of a regenerative floor heating unit. It is a longitudinal section front view shown. It should be noted that components having the same functions as those of the first embodiment shown in FIGS. 1 to 3 are denoted by the same reference numerals, and description thereof is omitted.
[0034]
The regenerative floor heating unit 1 of the present embodiment (corresponding to claim 4) has a heat insulating material 4, a heat storage material 5, and a heater wire 6, which are similar to those of the first embodiment, sequentially stacked from below in a mortar block 3. It is embedded. The mortar block 3 has a reinforcing bar 11 embedded therein as a reinforcing material instead of disposing the iron plate 2 at the bottom (corresponding to claim 5).
[0035]
In order to manufacture the regenerative floor heating unit 1 of the present embodiment, first, mortar is poured only into the bottom of the container-shaped form and solidified. Next, the heat insulating material 4, the heat storage material 5, and the heater wire 6 are arranged and laid thereon, and the reinforcing bar 11 is arranged around the heat insulating material 4, the heat storage material 5, and the heater wire 6. Then, the mortar block 3 is completed by adding and pouring mortar into the container-shaped mold. Then, the heat insulating material 4, the heat storage material 5, and the heater wire 6 are completely embedded in the mortar block 3 in a laminated state, and the reinforcing steel 11 is also embedded. If the heat insulating material 4, the heat storage material 5, the heater wire 6, and the reinforcing bar 11 are previously supported and floated from the bottom of the form using a supporting material, the mortar can be poured at once.
[0036]
Similar to the first embodiment, the regenerative floor heating unit 1 having the above-described configuration only needs to be arranged in a predetermined number on the slab, so that the on-site workability can be improved. Moreover, since the reinforcing bars 11 are embedded in the mortar block 3, sufficient strength can be obtained without using the iron plate 2.
[0037]
In the second embodiment, the regenerative floor heating unit 1 is formed only of the mortar block 3. However, as shown in FIG. 5, the slab block 12 made of a slab is used as a lower layer, and the mortar block 3 An upper layer portion may be formed (corresponding to claim 6). In this case, the reinforcing bar 11 is embedded in the slab block 12, and the heat insulating material 4, the heat storage material 5 and the heater wire 6 are embedded in the mortar block 3. In this way, since the mortar block 3 is protected by the concrete slab block 12 reinforced by the reinforcing bar 11, it is possible to sufficiently withstand rough handling during transportation.
[0038]
In the second embodiment, the case where the reinforcing bar 11 is used as the reinforcing material has been described. However, any reinforcing material such as a wire mesh may be used instead of or together with the reinforcing bar (corresponding to claim 7). .
[0039]
Further, in the first and second embodiments, the case where the heating element such as the heater wire 6 is laid on the heat storage material 5 has been described, but the vertical relationship between these heating elements and the heat storage material 5 is not particularly limited. Alternatively, the heat storage material 5 may be arranged on each of the upper and lower sides of the heating element.
[0040]
Further, the mortar block 3 used in the first and second embodiments can be made into a concrete block by adding pebbles or the like to sand mixed with cement or the like. For example, when the mortar block 3 shown in FIG. 4 and FIG. 5 is replaced with a concrete block, almost the same configuration is obtained.
[0041]
【The invention's effect】
As is apparent from the above description, according to the regenerative floor heating unit of the present invention, since the heating element, the heat storage material, and the heat insulating material are embedded in the block such as mortar, the block is transported to the site and mounted. The construction can be completed only by performing the above operations, and the on-site workability can be improved. Further, since this block is formed on a reinforcing plate or a reinforcing material is embedded therein, it is possible to prevent cracks or the like from occurring during transportation or the like.
[Brief description of the drawings]
FIG. 1, showing an embodiment of the present invention, is a longitudinal sectional front view showing a configuration of a regenerative floor heating unit.
FIG. 2, showing an embodiment of the present invention, is a plan view of a regenerative floor heating unit.
FIG. 3, showing an embodiment of the present invention, is a longitudinal sectional front view showing another configuration of the regenerative floor heating unit.
FIG. 4, showing an embodiment of the present invention, is a longitudinal sectional front view showing a configuration of a regenerative floor heating unit.
FIG. 5, showing an embodiment of the present invention, is a longitudinal sectional front view showing another configuration of the regenerative floor heating unit.
FIG. 6 is a perspective view showing a conventional example, showing a cross section of a floor of a house in which a regenerative floor heating device is installed.
FIG. 7 is a longitudinal sectional front view showing a conventional example and showing a configuration example of a regenerative floor heating device of a concrete burying construction system.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Thermal storage type floor heating unit 2 Iron plate 2a Side wall 3 Mortar block 4 Insulation material 5 Thermal storage material 6 Heater wire 10 Projection member 11 Reinforcing bar 12 Slab block

Claims (7)

Inside a block of mortar and / or concrete formed on the reinforcing plate, embeds a heat storage material and the heat generating element formed by laminating a heat insulating material above the insulation of the mortar and / or the concrete blocks A regenerative floor heating unit comprising a concrete box having a PF tube at an end for connecting the units and inserting a lead wire of a temperature sensor . 2. The regenerative floor heating unit according to claim 1, wherein the reinforcing plate has a container shape in which a side wall that covers a periphery of a mortar and / or concrete block is erected from a peripheral portion. 3. The regenerative floor heating unit according to claim 2, wherein a projecting member projecting inward from a side wall of the reinforcing plate is fitted into a mortar and / or concrete block. Inside the mortar and / or concrete blocks, with embedding heat insulating material and the heat storage material and the heat generating element laminated on top of the insulation material, it embeds the reinforcing member inside the block, further, the mortar and / Alternatively , a regenerative floor heating unit comprising a concrete box having a PF tube for connecting the units and inserting a lead wire of a temperature sensor at an end of the concrete block . The regenerative floor heating unit according to claim 4, wherein the reinforcing member is a reinforcing bar. The block is composed of a lower layer made of a slab in which the reinforcing bar is embedded, and an upper layer made of mortar, wherein the heat insulating material, the heat storage material, and the heating element are embedded in the upper layer made of the mortar. The regenerative floor heating unit according to claim 5, wherein The regenerative floor heating unit according to claim 4, wherein the reinforcing member is a wire mesh.

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