JPH03152313A - Method of installing thermal accumulative type floor heating with hot water of low temperature - Google Patents

Abstract

PURPOSE:To improve an installing characteristic by a method wherein a flexible hot water pipe material is helically installed on an iron member at a deck plate and thereafter a thermal accumulation layer comprised of a structural floor is formed. CONSTITUTION:In the case of a floor structure of a building made of iron works and reinforced concretes or the like, some iron members 5 and some wire nets 4 are arranged on a deck plate 6 having refractory material injection 7 and foam thermal insulation material 8 at their lower surfaces, some pipings 3 are arranged on them, and then concrete 2 is supplied to make a structural floor also acting as a thermal accumulation layer. As the pipe material 3, an EPT rubber tube is used. With such an arrangement, it is possible to easily arrange one seamless flexible tube and then size setting work, cutting and connecting of pipes or the like are almost eliminated.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application 1] The present invention relates to a method for installing regenerative floor heating using low-temperature hot water.

[Conventional technology] Regenerative floor heating using low-temperature hot water is: (1) Because it is a combined method of radiant heating and thermal conduction heating, it has a soft, uniform temperature that corresponds to human physiological sensations, which cannot be created with other heating methods. It is possible to obtain a more effective and comfortable indoor temperature environment. Since it is a well-balanced heating method, all of the supplied energy is stored in the heat storage floor, so there is no need to waste space in heating as with hot air heating methods, resulting in energy savings.

(2) The heat source equipment only needs to be operated intermittently twice in the morning and evening, and there is no need to operate the heat source equipment continuously during heating hours.
Also, there is no vibration or noise.

(3) Since it is a heat storage type floor heating system, it has excellent ability to follow heat loads, and can maintain sufficient floor temperature and room temperature in extremely cold regions. Even if the heat source equipment is stopped, the floor temperature and room temperature change very quickly, and the next morning's room temperature can be maintained at 15 to 16°C.

Even with wooden floors or slightly thick carpets, the heating effect is sufficient. In addition, since the body is warmed from the core, the effect of cooling the head and warming the feet is very noticeable, making it possible to live comfortably and at the same time being active and improving work efficiency.

(4) All floor temperatures can be controlled in individual rooms, and the temperature can also be adjusted in 1°C increments, allowing residents of each room to obtain the desired temperature. When it's slightly cold during the middle of the year or the rainy season, you can live a very comfortable life by using floor heating to keep the floor temperature down without overheating.

(5) The device can be operated fully automatically or manually, and can also be operated to prevent freezing.

(6) Like FF heating equipment and other hot air heating equipment that do not dry the indoor air like hot air heating and stoves,
There is no hot air outlet, so you can feel the wind speed,
It does not feel cold, and the living area has the highest degree of freedom and comfort. In addition, since no heating equipment is brought into the room, there is no generation of carbon dioxide gas or carbon monoxide due to lack of oxygen, and the air is clean and the heating system is safe and warm.

(7) Even in places where hot air heating cannot be expected to provide an effective heating effect, such as open ceilings, rooms with high ceilings, and large halls with high ceilings, the thermal storage floor heating system provides sufficient heating effects.

It has many advantages and is becoming popular.

[Problem to be Solved by the Invention] Such floor heating requires the installation of heat transfer tubes buried in the floor during the building construction stage. However, the present invention has an extremely large number of connection points, requires a huge amount of effort to construct a large number of bent pipes, requires a long construction period, and requires careful construction to prevent leaks. The purpose of this project is to solve the above-mentioned problem by constructing piping using flexible pipes with excellent workability.

[Means for Solving the Problems] The present invention is a method for installing regenerative floor heating using low-temperature hot water, which includes the following technical means.

■ In the case of buildings of steel frame construction or reinforced concrete construction,
Deck reinforcing bars are placed on the deck plate, flexible hot water piping material is arranged in a spiral shape on top of the reinforcing bars, concrete is constructed, and the structural floor and heat storage layer are simultaneously constructed.

■ In the case of a wooden building, reinforcing bars are placed on the structural floor slab via insulation material, flexible hot water piping material is arranged in a spiral shape on top of the reinforcing bars, and then sand is leveled. After that, a heat storage layer consisting of a sand layer is formed.

f-effect] The most distinctive feature of the present invention is that the flexible hot water piping material is arranged in a spiral shape. (a) Seamless hot water pipes can be easily installed in a short time. In other words, there is no need for horn monsters or pipe joints, and pipe sizing, cutting, and connections (welding, screwing,
There is no need for any work such as gluing.

The bent part should be a gentle 90-degree bend or (b) an arc-shaped target. Because there is no 180-degree bend unlike parallel piping of steel pipes or cross-linked polyethylene pipes, construction is easy and the flow resistance of the pipe is low. There are advantages.

(c) It is easy to create piping in any shape that matches narrow spaces or floors with complex planar shapes.

(d) Since it is embedded in the concrete or sand layer, it not only does not require separate piping space, but also is economical because these layers serve as a heat storage layer.

The flexible piping material used in the present invention has particularly excellent flexibility as well as weather resistance, heat resistance, corrosion resistance, thermal conductivity, etc. E
Use PT (ethylene polyethylene terpolymer) rubber tube or silicone rubber tube.

EPT has excellent heat resistance, weather resistance, and chemical resistance, and can be finished into pipes with a lightweight F4 wall and high flexibility, and is supplied in long lengths. EPT is a tire.

It is widely used in hoses, tarpaulins, gaskets, cables, belts, and many other industrial products, building materials, and household goods. In order for EPT to exhibit good rubber elasticity, the specific gravity of ethynone and propylene must be 50150 to 70/30.
Preferably. Strength and elongation vary depending on ethylene content, additives, etc. The characteristics of the EPT used as the vibrator of the present invention are as follows.

Ethylene ratio: about 65% Green strength 10-12 kg f/cr
n” (23℃) 100% tensile stress 50-90 kg f/c
ryi" Elongation: 350-550% Hardness: 55-65 degrees (J (S-A) and one-third
and small, so a small room such as a bathroom washing area or a toilet.

It can be easily installed even in rooms with complex shapes.

In addition, this piping material has excellent flexibility and is extremely easy to construct, and when piping it for underfloor heating, the construction time is one-third less than that of cross-linked polyethylene pipes, and compared to steel pipes. It only takes one-eighth of the cost, and construction costs can be significantly reduced.

Silicone rubber has excellent properties such as excellent heat resistance and cold resistance, weather resistance, oil resistance, release properties, thermal conductivity, electrical properties, compression set properties, rebound resilience, and safety. For vibrators, extruded products with a hardness of 50 to 70 are used. Operating temperature range is -55℃ to 250℃, tensile strength 55
~65kgf/crn”, elongation 280~350% JIS
It has a tear strength of 15 to 19 kgf/cm due to type A ties. Silicone rubber tubing can also be used as well as EPT rubber tubing.

All piping is constructed as a single piece with no joints, so there is no chance of problems such as water leakage due to peeling at the joints.

If the main structure is a steel frame, the floor structure is generally constructed by laying IIL deck plates on the beams, placing reinforcing bars, pouring concrete, and building the floor horizontally. By arranging heating pipes inside the floor and using the structural floor as it is as a heat storage layer for floor heating, there is no need to provide a separate heat storage layer.

[Example] Figs. 1 and 2 show cross-sectional views of a floor according to an example of the present invention. Figure 1 shows the floor structure of a building such as a steel frame structure or a reinforced concrete structure.
, on which piping material 3 according to the present invention is placed, and concrete 2 is poured to construct a structural floor that also serves as a heat storage layer. As the piping material 3, an EPT rubber tube with an inner diameter of approximately 15 mmφ was used. The piping material 3 is arranged so that its plan view is folded back into a spiral shape as schematically shown in FIG. 3(a). This arrangement makes it extremely easy to place a single, seamless flexible tube on the floor, making 90° bends or circular arc bends possible with few 180° fold bends. be able to. This arrangement requires almost no work such as dimensioning, cutting, and connecting the vibrator, and the arrangement of the Yumata piping material 3 can be arranged in any shape, as schematically shown in Fig. 3(b). As such, they can be arranged in the most appropriate design for any planar shape. The hot water inlet 9 and outlet 10 can be easily arranged close to each other.

Note that an EPT rubber tube with an inner diameter of 15 mmφ can be easily bent to a minimum curvature diameter of 20 cm.

Also, thermal expansion is absorbed by the volume due to the deformation of the pipes within the concrete, so there is no problem at all.

Figure 2 shows a cross section of an example of a wooden building with 1 joist.
8. A heat insulating material 16 is applied on the structural floor plate 17, a reinforcing wire mesh 15 is placed thereon, a piping material 14 is placed thereon, and then sand 12 is leveled to form a heat storage layer. The finished floorboard 11 is constructed on the upper surface of the joists 13. Unlike concrete, when used dry, the sand 12 has no moisture, is suitable for wooden buildings, is easy to construct, and has excellent heat storage performance, which is preferable.

Both of the embodiments shown in FIGS. 1 and 2 can be installed easily and at low cost, and have been well received as excellent floor heating.

[Advantageous Effects of the Invention 1] According to the present invention, floor heating piping can be installed very easily, inexpensively, and rationally, and the excellent characteristics of floor heating can be exhibited.

[Brief explanation of the drawing]

Fig. 1 is a cross-sectional view of an example of a concrete floor plate constructed by the method of the present invention, Fig. 2 is a cross-sectional view of an example of a wooden house floor plate, and Fig. 3 is a piping plan view showing an example of spiral piping. be. 1... Floor finishing material 2... Concrete 3... Piping material 4... Reinforced wire mesh 5... Rebar 6... Decking plate 7... Refractory material spraying 8... Foaming for spraying Insulation material 9...Inlet 10...Outlet II...Finished floor board 12...Sand 13...Joist 14...Piping material 15...Reinforced wire mesh 16...Insulation material 17... Structural floor board 18...Joist application person

Claims (1)

[Claims] 1. Floor slab reinforcing bars are arranged on the deck plate, flexible hot water piping material is arranged in a spiral shape on the reinforcing bars, and then concrete is applied to form a heat storage layer consisting of a structural floor. A construction method for regenerative floor heating using low-temperature hot water, characterized by forming. 2. After placing reinforcing bars on the structural floor slab via heat insulating material, and placing flexible hot water piping material in a spiral shape on the reinforcing bars, sand is leveled to form a heat storage layer consisting of a sand layer. A construction method for regenerative floor heating using low-temperature hot water.