JP3148300U - Floor heating structure - Google Patents

Abstract

[PROBLEMS] To provide a floor heating structure that can be introduced regardless of the size and shape of a room and can uniformly warm the floor at a low running cost. A pressure-resistant plate slab is provided on a concrete base as a floor base. A plurality of grid posts 5 are provided on the pressure-resistant plate slab 2 with constant gaps in the vertical and horizontal directions. A structural plywood 8 is provided on the grid post 5, and a plurality of spacers 9 are provided on the structural plywood 8 with a certain gap in the width direction and the longitudinal direction. In the gap between the spacers 9 on the structural plywood 8, a long heat radiating pipe 10 arranged in a meandering manner is provided. A heat-resistant floor 11 is laid as a finishing material on the structural plywood 8 via a spacer 9. The heat radiating pipe 10 is connected to a heat pump that heats water, receives floor water supply from the heat pump, and radiates heat under the floor to perform floor heating. [Selection] Figure 1

Description

  The present invention relates to a warm water type floor heating structure using a heat pump constructed in a building.

  2. Description of the Related Art Conventionally, there is a so-called floor heating that can warm and comfortably warm a floor of a building such as a house in winter when the temperature decreases. There are various types of floor heating, and the main types are the embedded piping type and the floor heating panel laying type.

The embedded pipe type is a method in which a foundation made of mortar, gypsum, concrete, or the like is formed under the floor, a pipe through which hot water flows is embedded, and a floor finishing material is laid thereon. The floor heating panel laying type is a floor heating panel on which a floor plate is installed on top of the joist, and a pipe through which hot water flows is laid in advance. It is a method to do.
JP 2000-87539 A

  However, since the embedded piping type has the piping embedded in mortar or the like, if a part of the piping is damaged or the like, a large-scale construction is required for replacement and repair, which is costly. In addition, mortar or the like is poured and cured on the entire surface of the floor, and further pipes are provided, so that the weight of the floor may be considerable and the floor may be bent. In addition, since the mortar and the like heated by the heat radiation of the pipe through which the hot water circulates once accumulates heat and heats the floor to warm the floor, a time lag occurs in temperature control, and it takes time from the start to the floor warming. In addition, there is a problem that the temperature cannot be changed suddenly, and it takes a considerable time until the temperature of the floor decreases after the stop. Furthermore, since it is a wet method, a curing period until drying is necessary, which becomes a major bottleneck in process control.

  On the other hand, the floor heating panel laying type is expensive to introduce because the floor heating panel itself is expensive. In addition, most floor heating panels are semi-tatami mat size (850 mm x 850 mm) or one tatami mat size (850 mm x 1700 mm), so they can be installed in small rooms or specially shaped rooms. In some cases, floor heating cannot be introduced.

  Furthermore, regardless of whether it is the above-mentioned embedded piping type or floor heating panel laying type, many houses have a cloth foundation under the floor, and the cloth foundation partitions the underfloor space and the warm air flows. There is also a problem that the house cannot be heated efficiently because floor heating is not possible.

  The present invention has been made in view of the above-mentioned drawbacks of the prior art, and can provide a floor heating structure that can be introduced regardless of the size and shape of a room and can evenly warm the floor at a low running cost. Objective.

  The means of the present invention according to claim 1 configured to solve the above-described problems includes a plurality of grid posts as foundations arranged on a floor base and a finish provided above the grid posts. And a heat radiating pipe disposed below the finishing material.

  According to a second aspect of the present invention, there is provided a plurality of I-shaped beams arranged on a floor base, a finishing material provided above the I-shaped beams, the finishing material and the I-shaped beams. And a heat radiating pipe disposed between the two.

  And it is good to heat the heat medium which circulates in the said thermal radiation pipe using a heat pump.

  A plate-like body may be provided on the I-shaped beam, a plurality of spacers may be provided on the plate-like body with a certain gap, and a heat radiating pipe may be provided in a meandering manner in the gap.

  Furthermore, a heat resistant floor may be used as the finishing material.

The present invention has the following effects by adopting the above-described configuration.
(1) By using the grid post, the underfloor space is not partitioned, and the heated air flows in the underfloor space, so that the floor heating can be performed evenly and uniformly.
(2) Since the I-shaped beam is high in strength and is not easily deformed by heat or drying due to floor heating, the house can be maintained in a good condition for a long time, and the repair cost of the house can be reduced. .
(3) Since it is dry construction, construction can be performed at any time including winter, regardless of construction time, and construction work can be simplified and construction time can be shortened.
(4) Floor heating is performed by circulating a heat medium heated by a heat pump that has high thermal efficiency and does not emit carbon dioxide in the pipe. Therefore, floor heating can be performed efficiently, and the load on the environment is reduced. Can be suppressed.
(5) Since the floor heating is performed using a heat pump that does not warm to a high temperature as compared with other heating means such as an electric boiler while heating the heat medium to a temperature sufficient for floor heating, There is no fear.
(6) Since the heat dissipating pipe is provided under the floor without using the regular floor heating panel, the finishing material can be provided using the floor nails, and various types of finishing materials can be used.
(7) Since the heat radiation pipe is provided under the floor without using a fixed floor heating panel, the floor heating can be introduced into a small room or a room of any shape.
(8) Since the heat radiation pipe is provided in the gap between the spacers without using the floor heating panel incorporating the heat radiation pipe, the heat radiation pipe can be easily repaired and replaced.
(9) Since the heat-resistant floor having excellent heat resistance is used as the finishing material, the floor can be maintained in a good state for a long period of time, and the repair and replacement costs of the finishing material can be reduced.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG.1 and FIG.2 is a figure which shows the structure under the floor of the 1st floor of the house which provided the floor heating structure based on this invention. Reference numeral 1 denotes a concrete base as a floor base constructed on the ground. Reference numeral 2 denotes a pressure plate slab provided on the concrete substrate 1. Reference numeral 3 denotes an outer peripheral foundation provided so as to surround the pressure-resistant plate slab 2. A plurality of cutout vents 4, 4,... The ventilation opening 4 is formed to take outside air into the underfloor space. 5, 5,... Indicate grid posts disposed on the pressure-resistant plate slab 2. A plurality of grid posts 5 are provided with a predetermined gap in the vertical direction and the horizontal direction. The grid post 5 is erected by abutting a three-sided metal stopper 6 on an upper housing 5A, a lower housing 5B and a pressure plate slab 2 described later and fixing them with bolts and nuts. 7 is a vertical grid post, and the vertical grid post 7 is provided on the pressure-resistant plate slab 2 in the same manner as the grit post 5 and is fixed by a known L-shaped metal stopper.

  Here, the grid post 5 includes a substantially U-shaped upper casing 5A made of concrete, hard plastic, iron, or the like, and a substantially U-shaped lower casing 5B, and the upper casing 5A and the lower casing 5A. A substantially cross-shaped column is formed by fitting the housing 5B. The mating work is performed at the construction site. Thus, by comprising from two housings, an operator can carry it easily alone.

  By using the grid posts 5 and 7, unlike the case where the cloth foundation is used, the underfloor space is not partitioned, so that the warm air can flow and reach the underfloor space evenly. Further, since the underfloor space is not partitioned, the air permeability is improved and the generation of decaying bacteria can be suppressed. Furthermore, since a wider working space can be secured, building work and maintenance work can be easily performed. In addition, since the amount of material used is small compared to the conventional foundation structure, the cost can be reduced, and the work amount for installation can be reduced compared to the conventional foundation structure, thus shortening the construction period. You can also.

  Reference numeral 8 denotes a structural plywood provided on the grid posts 5 and 7. The structural plywood 8 is formed by laminating a plurality of plate-like bodies, and is laid by being fixed on the grid posts 5 and 7 using anchor bolts (not shown). In the present embodiment, the structural plywood 8 has the above-described configuration, but is not limited to such a configuration, and various plate-like bodies can be used. For example, the structural plywood 8 may be configured by providing a heat insulating material on a plate material and further providing a heat sink on the heat insulating material. As the heat insulating material, it is possible to use plastic foams such as polystyrene, polyurethane and polyethylene, glass wool, rock wool, phenol foam and the like.

  9, 9... Indicate spacers arranged on the structural plywood 8 with a certain gap in the width direction. The spacer 9 is a wood formed in a long bar shape, and is provided so as to form a constant gap with a building wall (not shown), that is, in the length direction.

  Reference numeral 10 denotes a long heat radiating pipe disposed in a meandering manner in the gap between the spacers 9 on the structural plywood 8. As the heat radiating pipe 10, it is possible to use a copper pipe excellent in thermal conductivity, a polybutene pipe excellent in durability and heat resistance, a cross-linked polyethylene pipe, or the like. In order to fix the heat radiating pipe 10, a heat conductive tape (not shown) made of aluminum or copper may be used. Further, the heat radiating pipe 10 may be covered with a heat sheet having excellent heat conductivity such as an aluminum sheet.

  A heat-resistant floor 11 having excellent heat resistance is laid as a finishing material on the structural plywood 8 via spacers 9. Finishing material is a surface material that can be directly touched by the human eye as a floor. In addition to the heat-resistant floor 11, a wide range of flooring, flooring sheets, green decks, etc. processed from boards, tiles, solid wood and laminated wood, etc. Is also possible. Unlike the case of using a regular floor heating panel, it is possible to use a floor nail to provide a finishing material, so various types of finishing materials can be used. The floor structure of the first floor of the house is configured as described above, but is not limited to the above structure, and various floor structures can be used without departing from the scope of the present invention.

  3 and 4 are views showing a structure under the floor of a higher floor of the second floor or more of a house provided with a floor heating structure according to the present invention. Reference numeral 21 denotes a ceiling board as a floor base. Reference numerals 22, 22,... Indicate a plurality of I-shaped beams provided with a predetermined gap on the ceiling board 21. TJI (registered trademark) is used as the I-shaped beam 22. The I-shaped beam 22 has a substantially I-shaped cross section from a wooden web 22A formed in a long flat plate shape and wooden flanges 22B and 22C provided on the upper and lower edges of the web 22A, respectively. It is configured.

  As the web 22A, OSB (Oriented Stand Board) is used. OSB is obtained by solidifying thin wood or finely crushed wood with a resin adhesive and forming it into a plate shape, and is characterized by high strength and low price. As the flanges 22B and 22C, LVL (Laminated Venner Number) is used. LVL is a single plate laminated material obtained by laminating and bonding a plurality of thin single plates so that all fiber directions are parallel to each other. Bending rigidity is greatly improved by providing the flanges 22B and 22C on the upper and lower edges of the web 22A. The web 22 </ b> A mainly exhibits a resistance against a shearing force, and the flanges 22 </ b> B and 22 </ b> C mainly exhibit a resistance against a force to bend in the lateral direction. Therefore, it is possible to reduce the occurrence of shrinkage, deflection, torsion and the like as compared with conventional beams. Since the I-shaped beam 22 is lightweight, it can be easily transported and erected.

  Reference numeral 23 denotes a structural plywood provided via an I-shaped beam 22. The structural plywood 23 is the same as that used in the first floor structure described above. However, the structural plywood 23 is not limited to the same one as the first floor. Different plywood may be used on the first floor and the second floor in consideration of the structure of the house. 24, 24... Denote spacers arranged on the structural plywood 23 with a certain gap in the width direction, like the I-shaped beam 22. The spacer 24 is a wood formed in a long bar shape, and is provided so as to form a constant gap with a building wall (not shown), that is, in the length direction.

  Reference numeral 25 denotes a heat radiating pipe disposed in a meandering manner in the gap between the spacers 24. As the heat radiating pipe 25, it is possible to use a copper pipe excellent in thermal conductivity, a polybutene pipe excellent in durability and heat resistance, a cross-linked polyethylene pipe, etc., as used in the floor structure on the first floor. is there. However, pipes different from those used in the floor structure on the first floor may be used. In order to fix the heat radiating pipe 25, it is preferable to use a heat conductive tape (not shown) made of aluminum or copper. The heat radiating pipe 25 may be coated with a heat sheet having excellent heat conductivity such as an aluminum sheet.

  A heat-resistant floor 26 having excellent heat resistance is laid on the spacer 24 as a finishing material. As the finishing material, in addition to the heat-resistant floor 26, it is possible to use a wide range of floors, floor sheets, green decks and the like processed from boards, tiles, solid wood or laminated wood. In this way, the floor structure of the higher floors of the second and higher floors of the house is configured.

  FIG. 5 is a view showing a part of a house provided with a floor heating structure according to the present invention. 31 indicates a house. Reference numeral 32 denotes a heat pump for heating hot water as a heat medium for floor heating. Reference numeral 33 denotes a heat exchange unit constituting the heat pump 32, and the heat exchange unit 33 is provided in the house 31. A heat exchanger 34 for hot water and an expansion valve 35 shown in FIG. 6 are provided in the heat exchange unit 33. Reference numeral 36 denotes an outdoor unit constituting the heat pump 32, and the outdoor unit 36 is provided outside the house 31. An air heat exchanger 37 and a compressor 38, which will be described later, are provided in the outdoor unit 36. Thus, the heat pump 32 includes the heat exchange unit 33 provided indoors and the outdoor unit 36 provided outdoors.

  Reference numeral 39 denotes a hot water feed pipe having one end connected to the heat exchange unit 33 and the other end connected to the heat radiating pipe 10 (25) arranged in a meandering manner under the floor. Reference numeral 40 denotes a warm water return pipe having one end connected to the heat radiating pipe 10 (25) and the other end connected to the heat exchange unit 33. 41 is a circulation pump provided in the hot water feed pipe 39 in order to circulate the hot water in the flow path. Reference numeral 42 denotes a heat guide valve provided in the hot water return pipe 40, and the heat guide valve 42 is electrically connected to a temperature controller 43 described later. In this way, a flow path is formed in which hot water is supplied from the heat exchange unit 33 to the heat radiating pipe 10 (25) via the hot water feed pipe 39 and returned to the heat exchange unit 33 via the hot water return pipe 40. is there.

  Reference numeral 43 denotes a temperature controller provided on the wall of the house 31. The temperature controller 43 includes a temperature sensor and a control unit (not shown) inside, and the temperature of the floor heating detected by the temperature sensor is displayed on the display of the temperature controller 43. The temperature controller 43 is electrically connected to the heat conduction valve 42. When the user sets a desired temperature with the temperature controller 43, the temperature sensor detects the temperature of the floor heating, and the control unit controls it. By sending a signal to open and close the heat guide valve 42, the amount of hot water supplied to the heat radiating pipe 10 (25) is adjusted to control the temperature.

FIG. 6 is a configuration diagram of the heat pump 32 including the heat exchange unit 33 and the outdoor unit 36. The air heat exchanger 37 and the compressor 38 in the outdoor unit 36 are connected, the compressor 38 and the hot water heat exchanger 34 of the heat exchange unit 33 are connected, and the hot water heat exchanger 34 and the expansion are connected. A valve 35 is connected to a pipe, and a circulation path is formed by connecting the expansion valve 35 and the air heat exchanger 37 to each other, and the refrigerant flows in the circulation path. The refrigerant can be used _{CO 2, R-410A, R} -600a ( isobutane) or the like.

  The heat exchanger 34 for hot water is connected to the heat radiating pipe 10 (25) via the hot water feed pipe 39 and the hot water return pipe 40. In this way, the heat pump 32 is configured by the heat exchange unit 33 and the outdoor unit 36. In the present embodiment, one outdoor unit 23 is provided. However, the number of outdoor units is not limited to one, and when it is determined that the heating capacity is insufficient when the house is large, a plurality of outdoor units 36 are provided. A plurality of them may be operated simultaneously.

  The embodiment of the present invention has the above-described configuration, and the operation thereof will be described next. When the temperature drops in winter and the house 31 is to be heated by floor heating, the heat exchange unit 33, the outdoor unit 36, and the circulation pump 41 are activated. When activated, hot water circulates in the heat radiating pipe 10 (25) by the action of the circulation pump 41. The air heat exchanger 37 of the outdoor unit 36 sucks outside air from the outside, the refrigerant absorbs heat from the outside air, and the refrigerant is sent to the compressor 38. The refrigerant becomes high temperature by being compressed by the compressor 38. Next, the high temperature refrigerant is sent to the hot water heat exchanger 34 of the heat exchange unit 33. And the warm water circulating through the heat radiating pipe 10 (25) is heated by heat exchange in the warm water heat exchanger 34. The refrigerant whose temperature has been lowered by heat exchange is sent to the expansion valve 35, the pressure is lowered and the temperature is further lowered, and then it is sent again to the air heat exchanger 37 of the outdoor unit 36. In this way, the refrigerant circulates in the flow path composed of the air heat exchanger 37, the compressor 38, the hot water heat exchanger 34, and the expansion valve 35.

  The warm water heated by the air heat exchanger 37 as described above flows through the heat radiating pipe 10 (25) and radiates heat under the floor of the house 31 to perform floor heating. Then, the hot water whose temperature has been lowered by heat radiation is supplied to the heat exchanger 34 for hot water, heated again, and circulated in the floor heating pipe 8.

  The floor heating structure according to the present invention uses the grid posts 5 and 7 as a foundation, so that the underfloor space is not partitioned unlike the case of using a cloth foundation. Therefore, when the heat radiating pipe 10 (25) dissipates heat to generate warm air, the warm air flows in the underfloor space and reaches every corner, so that the floor can be evenly and uniformly heated.

  Since the heat-dissipating pipe 10 (25) is arranged in a meandering manner without using a floor heating panel, the floor heating is also applied to a small room or a specially shaped room where the floor heating panel cannot be laid. Can be introduced.

  Since the heat pump 32 does not have a hot water temperature higher than that of other hot water heating systems such as electric type and kerosene type, using the heat pump 32 for floor heating prevents a low-temperature burn while ensuring a sufficient floor heating temperature. be able to. Further, by using the heat pump 32, the running cost can be kept lower than that of a hot water heating system such as an electric type or a kerosene type. Furthermore, since the heat pump 32 does not discharge carbon dioxide, the load on the environment can be kept low.

  A heat guide valve 42 that is electrically connected to a temperature controller 43 having a built-in temperature sensor and a control unit for detecting the temperature of the floor heating is provided in the hot water return pipe 40. Then, the temperature controller 43 controls the heat guide valve 42 to stop the supply of hot water to the heat radiating pipe 10 (25). Since the floor is not heated by stopping the supply of hot water, the room temperature can be lowered. When it is desired to raise the temperature of the floor heating, the temperature controller 43 controls the heat conduction valve 42 to send hot water to the heat radiating pipe 10 (25). In this way, the temperature of the floor heating can be adjusted. Moreover, when a desired temperature is set by the temperature controller 43, the temperature sensor holds the desired temperature by operating the heat conduction valve 42 via the control unit.

  The present invention is not limited to the above-described embodiments, and various modifications and applications are possible without departing from the spirit of the present invention. For example, the heat pump 32 is not limited to one that uses the heat of the outside air, and a heat pump that uses geothermal heat may be used. Further, the heat pump 32 is not limited to the one constituted by the heat exchange unit 33 provided indoors and the outdoor unit 36 provided outdoors, and an integrated heat pump may be used. Further, a floor-standing panel heater, a wall-mounted panel heater, and a towel hanger-type heater may be provided in the house, and the house may be heated by supplying hot water to them together with the floor heating.

  In addition, although the concrete base 1 was mentioned as an example as a floor base, the base of the earth structure which does not hit concrete may be used.

It is the disassembled perspective view which fractured | ruptured a part which shows the floor heating structure which concerns on embodiment of this invention. It is sectional drawing which shows a floor heating structure. It is the perspective view which fractured | ruptured a part which shows the floor heating structure of the higher floors of the second floor or more. It is sectional drawing which shows the floor heating structure of the higher floors of the 2nd floor or more. It is a perspective view which shows the house which provided the floor heating structure which concerns on this invention. It is a block diagram of the heat pump which consists of a heat exchange unit and an outdoor unit.

Explanation of symbols

1 Concrete base 5, 7
Grid posts 8 and 23 Plywood 10 and 25 for structure Heat radiation pipes 11 and 26 Heat-resistant floor 21 Ceiling board 22 I-shaped beam 24 Spacer

Claims (5)

  A floor heating structure comprising a plurality of grid posts as foundations arranged scattered on a floor base, a finishing material provided above the grid posts, and a heat radiating pipe provided below the finishing material. .   A floor comprising a plurality of I-shaped beams disposed on a floor base, a finishing material provided above the I-shaped beams, and a heat radiating pipe disposed between the finishing material and the I-shaped beams. Heating structure.   The floor heating structure according to claim 1 or 2, wherein the heat medium circulating in the heat radiating pipe is heated using a heat pump.   A plate-like body is provided on the I-shaped beam, a plurality of spacers are provided on the plate-like body by providing a certain gap, and a heat radiation pipe is provided in a meandering manner in the gap. The floor heating structure according to claim 2 or 3.   The floor heating structure according to any one of claims 1 to 4, wherein a heat-resistant floor is used as the finishing material.

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