JP2009270807A - Hot-standing underfloor heat storage type heating - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve the problem of initial cost in a system in which an electric heater is embedded in a slab of a mat foundation bottom part that the slab should be made extremely thick in connection with concrete strength or concrete for embedding the electric heater should be overlapped on an upper layer of the slab of the foundation bottom part and should be separately casted, and a problem of a system in which a heat storage body or a heat source is attached to a partition foundation that an underfloor space becomes small and attached objects are exfoliated, in an underfloor heat storage heating. <P>SOLUTION: Regarding an underfloor foundation, an electric heating element, such as a sheathed heater, is embedded in an internal partition foundation concrete (commonly called, standing) except an outer peripheral foundation exposed to the outside air, and a radiation spacer is formed between the electric heating element and an upper floor member or a floor support member (a header joist) so as to compose a simple and epoch-making underfloor heat storage type heating system. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

Detailed Description of the Invention

It is invention of the underfloor heat storage heating system comprised under the floor.

Conventionally, as an underfloor heat storage structure used for heating, there is an interstitial heat storage heating system in which a sheathed heater is embedded inside the underfloor concrete, heat is stored in the underground concrete with midnight power, and the stored heat is used for indoor heating on the floor during the day. is there.
JP 2003-322351 A JP 2006-317072 A

In addition, there is a structure in which a heat source and a heat storage body are attached to a side surface portion of a partition foundation and a side surface portion on the lower floor side of an outer periphery foundation.
JP 2008-8544 A

In the soil concrete thermal storage system according to Japanese Patent Application Laid-Open No. 2003-322351 and Japanese Patent Application Laid-Open No. 2006-317072 as described above, the maintenance of the electrical wiring and water pipes under the floor is possible because of the configuration in which the space under the floor can be sufficiently maintained. On the other hand, there is a problem in running cost because there is a waste of thermal efficiency because the distance between the stored concrete between the soil and the floor as the heat sink is inevitably increased.

In addition, in the case of a residential foundation based on the so-called solid foundation method, embedding an electric heater directly in the slab part of the foundation bottom means that the solid foundation is essentially composed of the outer foundation and the bottom slab in a boat-like state. From the original role of supporting the building, an important requirement that the strength of the concrete must be ensured was essential, and was not actually performed from the viewpoint of the Building Standards Act. In other words, in order to avoid deterioration of strength due to foreign matter contamination (heating wire enters the slab concrete that requires strength), concrete for embedding an electric heater is layered on top of the slab at the bottom of the foundation, or placed separately. The thickness had to be increased by about 1.5 to 2 times, and there was a problem of initial cost due to the increase of concrete.

In addition, the method of attaching the heat source and the heat storage body to the side surface portion of the partition foundation according to Japanese Patent Application Laid-Open No. 2008-8544 has a disadvantage of narrowing the underfloor space, and maintains the integrity with the partition foundation. In addition to the phenomenon of peeling due to the problem of attachment, there were many technical problems such as the construction work for attaching the heat source and the heat storage body was large and troublesome.

In view of the above problems, the present invention devised an effective heat storage method under the floor while securing an underfloor space necessary for the maintenance of electrical wiring and water pipes under the floor, and also has improved running efficiency and initial cost. It is an object to provide a simple and innovative underfloor regenerative heating system that takes into account.

The above problem is that, under the floor, an electrical heating element such as a sheathed heater is embedded in the internal partition foundation concrete (commonly called standing) other than the outer peripheral foundation that comes into contact with the outside air, and heat conduction such as plastic is conducted between the upper flooring or floor support. It is possible to effectively store heat under the floor by constructing a low-temperature material heat-insulating spars, and to solve this problem by providing a lower-cost and efficient under-floor heat storage heating system.

By carrying out the above-mentioned invention, the distance closer to the floor than the conventional bottom slab as a heat storage body according to Japanese Patent Application Laid-Open Nos. 2003-322351 and 2006-317072 Because it can store and release heat, the efficiency of running cost can be improved, it can contribute to energy reduction, and the underfloor space necessary for maintenance of electrical wiring and water piping similar to the conventional technology can be secured.

In addition, because the internal partition foundation concrete is regarded as a heat storage body, the initial cost of placing concrete for heat storage over the slab at the bottom of the foundation as described above has been reduced, and the mainstream construction method in recent housing construction It has the characteristics that can be applied to the solid foundation method.

However, the internal partition foundation (standing) exists as a supporting member directly under the floor material that is the original role and the large drawer that supports it, and is made of a rod-shaped steel bundle or a rod-shaped plastic. As can be inferred from the fact that it can be replaced by a bundle, the strength loss of the concrete itself by embedding a heating element inside the concrete is not a problem because it is not a so-called structure in the building body.

Furthermore, compared with the conventional technique according to Japanese Patent Laid-Open No. 2008-8544, in which the heat source and the heat storage body are attached to the side surface of the partition foundation, the construction method is simple and there is no inconvenience of narrowing the underfloor space. There is no inconvenience of causing a peeling phenomenon due to a defect in pasting to maintain the integrity with the foundation.

Next, an embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a cross-sectional view of a house including a solid foundation 1 and shows a state in which an electric heater 4 is embedded inside a partition foundation 3 other than an outer circumference foundation 2 that comes into contact with outside air. Between the upper pulling 6 that supports the floor material 5 at the top, a heat shielding spacer 7 (which can be substituted with a ventilation basic packing) made of a material having low heat conductivity such as plastic is disposed. It has a role to prevent overheating of the draw 6. In addition, a heat insulating material 9 such as a foamed plastic plate is attached to the outside of the outer peripheral foundation 2, the inner side of the outer peripheral foundation 2 and the outer periphery of the foundation bottom slab 8, and an airtight packing 11 is provided between the outer peripheral foundation 2 and the base 10. The underfloor space 12 is configured in an adiabatic and sealed state. Further, the flooring 5 is provided with a ventilation gallery 14 communicating with the underfloor space 12 and the indoor space 13, and in addition to the action of heating the flooring 5 with the radiant heat from the partition foundation 3 (standing heat storage body), heat is radiated to the underfloor space 12. The heated air can reach the indoor space 13 due to natural convection or a temperature difference rise, and the entire indoor space 13 can be quickly heated. A part of the foundation bottom slab 8 in contact with the partition foundation 3 (standing heat storage body) and a part of the surface earth and sand 15 play a role of the heat storage body by heat transfer from the partition foundation 3 and are represented as a heat storage formation area 16. It is. FIG. 2 is a plan view of the foundation, showing the partition foundation 3, the ventilation gallery 14, the heat insulating material 9, and the like. FIG. 3 is a perspective view showing a specific shape of the heat insulating spacer 7. The body of the heat insulating spacer 7 made of a material having low heat conductivity such as plastic is provided with an air slit 17 for improving the heat insulating effect. It is.

Although the embodiment of the present invention has been described above, the present invention is not limited to this, and various modifications can be made without departing from the spirit of the invention. For example, as shown in FIGS. 4, 5, and 6, the electric heater 4 is embedded in the independent foundation 18 having various shapes instead of the partition foundation 3 but having the same function, and further, the flooring 5 and the large pull 6. In order to prevent overheating, the heat shielding spacer 7 made of a material having low thermal conductivity such as plastic may be used. Also, a method of embedding a heat medium passage tube in place of the electric heater 4 embedded in the partition base 3 is conceivable, or if the flooring 5 or the pulling 6 is a heat-resistant material, the heat insulating spacer 7 is provided. Omitted construction is also conceivable.

It is sectional drawing of the house which shows one Embodiment of this invention. It is a top view of the basic part which shows one Embodiment of this invention. It is a perspective view which shows one Example of the thermal insulation spacer 7. FIG. It is a perspective view which shows other embodiment which replaces the partition foundation 3 in this invention. It is a perspective view which shows other embodiment which replaces the partition foundation 3 in this invention. It is a perspective view which shows other embodiment which replaces the partition foundation 3 in this invention.

Explanation of symbols

1 Solid foundation 2 Perimeter foundation 3 Partition foundation (standing)
4 Electric Heater 5 Floor Material 6 Drawer 7 Heat Insulation Spacer 8 Base Bottom Slab 9 Heat Insulation Material 10 Base 11 Airtight Packing 12 Underfloor Space 13 Indoor Space 14 Ventilation Gather 15 Surface Soil 16 Heat Storage Forming Area 17 Air Slit (Vent Hole)
18 Independence basis

Claims (1)

Under the floor of the building, an electric heating element such as a sheathed heater is embedded in the internal partition foundation concrete (commonly known as standing) other than the outer peripheral foundation that comes into contact with the outside air, and the plastic is heated between the upper flooring or the floor support (large pull). A floor heating system that constitutes a thermal barrier spacer made of a material with low conductivity.

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