JP3167510U - Thermal storage floor heating system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a heat storage type electric floor heating device capable of shortening a construction period and having good maintainability. A heat storage type electric floor heating apparatus has a heat storage layer including a heat generating body (10) using electricity as a heat source and a heat storage body around the heat generating body, and a high layer disposed on an upper surface of a lower layer member in contact with the heat storage layer. It has a heat-resistant support that can be adjusted in height and a heat-resistant large pull 8 on the heat storage layer, and the support is formed to support the large pull. As the electric heating element, one having a structure in which a heat transfer wire is passed through a tube is used. As the heat storage body for storing the heat generated from the electric heating element, there are gravel, crushed stone 1 or natural stone, or one using a chemical substance having heat storage property. The heat storage body is arranged around the electric heat generation body so as to cover the electric heat generation body, including the upper and lower sides of the electric heat generation body, and the heat storage body and the electric heat generation body form a heat storage layer. [Selection diagram] Figure 1

Description

  The present invention relates to a regenerative electric floor heater that heats from the bottom of a building using heat storage by electricity, and more particularly to a structure of a lower floor in a regenerative electric floor heater.

  In recent years, an increasing number of houses are equipped with a regenerative electric floor heating device because they do not use fire, do not need to place a heating device in a room, and can use nighttime power. In this heat storage type electric floor heating device, it is essential to install a layer (hereinafter referred to as “heat storage layer”) in which a heating element using electric power is embedded under the floor.

  Regarding the regenerative electric floor heater, the invention described in Japanese Patent Application Laid-Open No. 2004-53164 (Patent Document 1) is known. According to the invention described in the publication, “a moisture-proof material is laid on the foundation floor of a building, and then a heat insulating layer, a heat storage layer in which an electric heating element is embedded, and a planar finishing layer are sequentially laminated. A floor heating device in which a heat insulating cloth is interposed and a surface floor material is laid on a flat finishing layer, and the heat insulating layer is formed by a heat insulating material made of foamed polystyrene and a heat reflecting material made of a silver foil sheet. The heat storage type electric floor heating device is characterized in that the heat storage layer is formed by laying gravel at a predetermined height, and the planar finishing layer is formed to a predetermined thickness by mortar or cement material. .

  However, in the “thermal storage type electric floor heating device” described in Patent Document 1, the upper concrete layer used for adjusting the flooring floor and the unevenness of the floor is not flat due to shrinkage for drying ( There are disadvantages that the floor is not flat and has unevenness), and that the repair is necessary, and the floor finish feels hard because it is laid on the concrete. In addition, there is a disadvantage that a long construction period is required, for example, it is necessary to place and cure the upper concrete layer and dry the gravel of the heat storage layer and to proceed to the next step unless the floor is fixed. Furthermore, in order to confirm the electric heating element at the time of failure of the apparatus, it is necessary to remove the floor finishing material and the upper concrete layer, and the maintainability is not good.

JP 2004-53164 A

  The problem to be solved by the device described in the present application is to provide a regenerative electric floor heating apparatus that can shorten the construction period (hereinafter referred to as “construction period”) and has good maintainability.

  The main feature of the present invention is that a support that penetrates the heat storage layer is arranged in the heat storage layer of the heat storage type electric floor heating device, and the upper pulling of the upper layer is supported by the support.

The heat storage type electric floor heating device according to claim 1 is disposed on a heat storage layer composed of a heat generating body using electricity as a heat source and a heat storage body around the heat generating body, and an upper surface of a lower layer member in contact with the heat storage layer. It has a heat-resistant support that can be adjusted in height, and a large pull that has heat resistance on the heat storage layer, and the large pull is supported by the support.
As the electric heating element, for example, one having a structure in which a heat transfer wire is passed through a tube described in Japanese Patent Application Laid-Open No. 2004-53164 is used to generate heat by electric power supplied from the outside. Other electric heating elements include sheets. Examples of the heat storage body for storing heat generated from the electric heating element include gravel, crushed stone, natural stone, or a chemical substance having a heat storage property. This heat storage element is arranged around the electric heating element so as to cover the electric heating element, and the heat storage element and the electric heating element constitute a heat storage layer.

The upper surface of the lower layer member of the heat storage layer refers to the upper surface of the member disposed at the highest position among the members constituting the lower layer of the heat storage layer. On the upper surface of the lower layer of the heat storage layer, height-adjustable and heat-resistant supports are arranged at predetermined intervals. The support may be a steel bundle having a height adjusting mechanism, a bundle other than steel, or a bundle having a heat resistant material around the bundle. In addition, in the construction of a house, the predetermined interval is preferably arranged vertically and horizontally at intervals of 606 mm to 909 mm, but this interval is changed depending on the rigidity and load of various members used for the upper layer of the support.
The support penetrates the heat storage layer and supports the heat-resistant pulling on the heat storage layer. An example of the heat-resistant pull is a steel pull. Or the thing which coated the circumference | surroundings of a large drawing with a heat-resistant substance, the thing which covered the circumference | surroundings of a large drawing with a heat resistant material, etc. are also considered. A structural plywood or floor finish is laid on the overdraw.

  The invention according to claim 2 is characterized in that, in the regenerative electric floor heating apparatus according to claim 1, the heat-resistant support and the large pull are made of steel. This steel support is adjustable in height as in claim 1.

The invention according to claim 3 is characterized in that, in the heat storage type floor heating apparatus according to claim 1 or 2, the heat storage body is made of stone. Gravel, crushed stone, natural stone, ceramic balls, or the like can be used as the stone used for the heat storage body. In particular, the heat storage layer made of natural stone does not have an extreme temperature drop once it is warmed, and a stable and gentle heating effect can be obtained.
If the distance between stones is too large, there will be partial variations in the heat storage and insulation effect, and a comfortable heating effect cannot be obtained. Experiments have shown that natural stones with a size of about 25 mm are effective. Also, after laying stones, it is better to tighten them sufficiently.

  The invention described in claim 4 is characterized in that, in the regenerative electric floor heating apparatus according to any one of claims 1 to 3, the heating element is a sheathed heater. A sheathed heater is one in which a heating element is placed in a metal sheath (pipe) and the space between them is filled with an insulator.

  The invention according to claim 5 is the heat storage type electric floor heating apparatus according to any one of claims 1 to 4, wherein the heat reflecting plate is below the heat storage layer, and the soil moistureproof sheet is below the heat reflecting plate. And an interstitial concrete under the interstitial moisture-proof sheet, a heat insulating material under the interstitial concrete, an interstitial moisture-proof sheet under the thermal insulating material, and an interstitial crushed stone layer under the interstitial moisture-proof sheet. Is. As the heat reflection plate, there are an aluminum plate and an iron plate with an aluminum coating. This heat reflecting plate reflects the heat from the heat storage layer, which is immediately above, so that the heat storage layer can store heat evenly. In addition, soil concrete also has a heat storage effect, and forms a heat storage layer together with an upper heat storage layer composed of a heating element and a heat storage body.

According to the present invention, there are the following effects and advantages.
According to the invention described in claim 1, since no mortar or concrete is used for the upper layer of the heat storage layer, a curing period is unnecessary, and the construction period can be shortened. In addition, when maintenance is required due to equipment failure or the like, the heat storage layer appears only by removing the floor finishing material and the structural plywood, so it is easy to check the heat storage body and the heating element. In addition, since the height-adjustable support is used, it is easy to adjust the floor height at the time of construction, and accurate construction is possible regardless of the difference in the technique of the construction worker. Further, since the support is provided, the large pulling and the load from above are not directly applied to the heating element and the wiring connecting the heating element, so that the durability of the heating element and the wiring is increased.

  According to the second aspect of the present invention, since the height-adjustable steel bundle is used as the heat-adjustable support whose height is adjustable, if this steel bundle is prepared as the heat-resistant support, This steel bundle has the advantage of being readily available.

  According to the invention described in claim 3, since stone is used as the heat storage body, there is an advantage that the heat storage layer can be easily constructed.

According to the invention described in claim 5, since the soil concrete constituting the lower layer of the heat storage layer also has a heat storage function, the heat storage layer is increased as a whole, and a rapid heat fluctuation is suppressed, so that stable heat storage is achieved. It can be secured.
Further, according to the invention described in claim 5, the moisture-proof sheet provided in the lower layer of the soil concrete prevents moisture from the lower layer soil from affecting the heat insulating material and the soil concrete, and is provided in the upper layer of the soil concrete. The moisture-proof sheet works to prevent moisture from the soil concrete from affecting the heat storage body, and further, an aluminum heat reflecting material is arranged on the upper layer, so that the heat storage layer can have an even heat storage. There is.

FIG. 1 is an explanatory view showing a structure of an embodiment of a heat storage type electric floor heating apparatus according to the present invention. FIG. 2 is a partially cutaway perspective view of an apparatus according to an embodiment of the regenerative electric floor heating apparatus according to the present invention.

  The present invention aims to shorten the construction period, and is supported by a support having heat-controllable height that penetrates the heat storage layer vertically without using mortar or concrete as the upper layer of the heat storage layer, and the support. This was realized by providing a large pull with heat resistance.

The thermal storage type electric floor heating apparatus according to the present invention will be described in the actual construction work sequence with reference to the drawings.
FIG. 1 is an explanatory view showing the structure of an embodiment of a heat storage type electric floor heating apparatus according to the present invention, and the support (steel bundle 7) penetrating the heat storage layer, which is a feature of the present invention, is large. The state of supporting the pull (steel large pull 8) is shown. Thereby, it is not necessary to provide the layer which consists of mortar or concrete on the heat storage layer which consists of the heat generating body 10 and a heat storage body (gravel 9). In FIG. 1, gravel 9 placed around the heating element 10 is omitted.
FIG. 2 is a partially cutaway perspective view of an apparatus according to an embodiment of the regenerative electric floor heating apparatus according to the present invention, showing the entire configuration of the apparatus, the laying of the heating element 10 and the state of the connection 11. In FIG. 2, the crushed stone 1 under the soil moisture-proof sheet 2 is omitted.
Of course, the device according to the present application is not limited to the present embodiment. In addition, this example is an example in the heavy snow region, and the thickness of each member is in accordance with the public building construction standard specification supervised by the Ministry of Land, Infrastructure, Transport and Tourism, Minister's Secretariat, and also considers the air characteristics of the construction area. It has become a thing.

In this embodiment, as a heat-resistant support that can be adjusted in height, a support column having a male screw, a nut having a female screw that is screwed up and down with the male screw, and an upper part of the nut and being higher by the nut. A steel bundle 7 made of a flat plate part whose thickness can be adjusted was used. Further, as the heat-resistant large drawing, a steel large drawing 8 having a brim-cap-shaped cross section was used (see FIG. 1).
In the construction of a house, etc., after the concrete of the foundation is made, put the soil to a position about 50cm below the floor finish height and level it. In addition, the depth which puts the soil at this time will be a little different depending on the thickness of the floor finish 13. On the leveled soil, crushed stone 1 having a size of about 40 mm is laid down to a thickness of 15 cm and subjected to sufficient rolling pressure. This crushed stone 1 is placed in order to distribute the load evenly on the ground, and its thickness takes into consideration regional characteristics such as the response to frozen soil in winter.
On the crushed crushed stone 1, in order to block moisture generated from the lower soil, a 0.15 mm thick soil moisture-proof sheet 2 is laid, and on this soil moisture-proof sheet 2 is a 30 mm thick polystyrene insulation. Spread material 3. The heat insulating material 3 is also filled in the rising part of the foundation so that heat does not escape from this part.

Concrete is cast with a thickness of 120 mm on the heat insulating material 3. This concrete layer 4 (hereinafter referred to as “concrete concrete”) also has a function of storing heat from the upper heat storage layer, and can be said to be a heat storage layer in a broad sense. It is desirable to place the soil concrete 4 during the foundation work.
The process of the upper layer from the dirt concrete 4 is that the pillars of the house are standing, the roof is covered, the outer wall is almost blocked, and then the construction is done without rain and wind inside. Often after 3 weeks, the period is the curing period of the soil concrete 4.

A soil moisture-proof sheet 5 having a thickness of 0.15 mm is spread on the soil concrete 4. The soil moisture-proof sheet 5 functions to prevent moisture and moisture from the soil concrete 4 from being transmitted to the upper layer.
An aluminum heat reflecting material 6 (thickness of less than 1 mm) is laid on the soil moisture-proof sheet 5, and steel bundles 7 are arranged vertically and horizontally on the heat reflecting material 6 at intervals of 606 mm to 909 mm. The steel bundle 7 is fixed to the concrete 4 and the height of the steel bundle 7 is adjusted so that the upper surface height is constant. The arrangement interval of the steel bundle 7 is appropriately changed depending on the load supported by the steel bundle 7.
Thereafter, gravel 9 having a size of about 24 mm (also referred to as 8-minute gravel) is spread over with a thickness of about 50 mm so as to cover the heat reflecting material 6 and rolled. As the gravel 9, it is common to use gravel collected from a river (river gravel), but artificially produced stones such as crushed stones, natural stones or ceramic balls can also be used.

An electric heating element 10 is laid in parallel on the spread gravel 9 and the electric heating elements are connected. At this time, a temperature sensor should also be laid. The connection 11 is connected to the temperature sensor embedded in the heat storage layer and the controller 20 (control panel for turning on / off the power and setting the temperature) (see FIG. 2). The controller 20 is supplied with electricity from an electrical distribution board.
The electric heating element 10 is filled with an insulating material made of powdered magnesium oxide in the hollow interior of a stainless steel tube, and a heating wire is inserted and arranged at the center of the filled insulating material, so that both openings of the tube are sealed. A sheathed heater having the structure described above was used (see the description of FIGS. 3 to 5 of JP-A-2004-53164).

Subsequently, the steel large pull 8 is placed on the upper flat plate portion of the steel bundle 7, and the collar portion of the steel large pull 8 is fixed to the flat plate portion of the steel bundle 7 (see FIG. 1). Since the height of the steel bundle 7 has already been adjusted, the steel puller 8 is simply placed and fixed. Next, the gravel 9 is covered with a thickness of about 100 mm so as to fill the electric heating element 10 that has already been laid, and is rolled. The gravel 9 may be of the same type as the gravel laid under the electric heating element, or the above-mentioned crushed stone, natural stone or ceramic ball. After the gravel 9 is put, a wooden structural plywood 12 (thickness: 24 mm) serving as a base for the floor finish 13 is laid and fixed on the steel pulling 8 placed on the steel bundle 7 and passed. A floor finishing material 13 is laid on the structural plywood 12 to form a floor surface (see FIG. 2).
In addition, when the floor finishing material which can ensure the rigidity of a floor equivalent to structural plywood is used, structural plywood can also be omitted.

The usage of the regenerative electric floor heater according to the present invention will be described below.
The controller 20 sets the temperature of the heat storage layer in the morning of the next day with the controller 20 before entering the midnight power time zone where the electricity rate is low. Under the microcomputer control of the controller 20, the power is turned on and off, and the set temperature is reached during the time when the midnight power is turned off. After that, the heat storage layer warmed to the set temperature naturally dissipates and becomes a comfortable room temperature. Since the setting of the previous day is stored in the microcomputer of the controller 20, it is not necessary to set it every day.

  The present invention relates to a heat storage type floor heating apparatus using electricity as a heat source, but the present invention can be applied to a floor heating apparatus using other heat sources (for example, hot air or hot water). Even in this case, the work period can be shortened.

DESCRIPTION OF SYMBOLS 1 Crushed stone 2 Dampproof sheet 3 Heat insulating material 4 Dough concrete 5 Dampproof sheet 6 Heat-reflective material 7 Steel bundle 8 Steel pulling 9 Gravel 10 Heating element 11 Connection 12 Structural plywood 13 Floor finishing material 20 Controller

Claims (5)

  A heat storage layer comprising a heat generating body using electricity as a heat source and a heat storage body around the heat generating body, a heat-resistant support having an adjustable height disposed on an upper surface of a lower member in contact with the heat storage layer, and A regenerative electric floor heating apparatus having a heat-resistant large pull on a heat storage layer, wherein the large pull is supported by the support.   2. The regenerative electric floor heating apparatus according to claim 1, wherein the heat-resistant support and the large pull are made of steel.   The regenerative electric floor heating apparatus according to any one of claims 1 to 2, wherein stone is used as the heat accumulator.   The regenerative electric floor heating apparatus according to any one of claims 1 to 3, wherein the heating element is a sheathed heater.   Under the heat storage layer, a heat reflecting plate, a soil moisture-proof sheet under the heat reflecting plate, a soil concrete under the soil moisture-proof sheet, a heat insulating material under the soil concrete, and a heat insulating material The regenerative electric floor heating apparatus according to any one of claims 1 to 4, wherein a soil moisture-proof sheet is provided below and a soil crushed stone layer is provided under the soil moisture-proof sheet.

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