JPH0637179Y2 - Concrete panel - Google Patents

Description

TECHNICAL FIELD The present invention relates to a concrete panel used as a structural material such as a roof material of a building.

2. Description of the Related Art The roof of a reinforced concrete low-to-middle-rise building is generally made flat, and is used as a clothes-drying area in general houses. However, if there is snow on the roof of this type of building, it is extremely difficult to remove snow because it is flat and has a protective wall around it, so in the end it is impossible to use the roof during snow. Is normal.

In order to eliminate such inconvenience, a hot water circulation method in which a hot water pipe is buried on the roof and snow is melted by the heat of hot water, and an electric heater type in which an electric heater is buried on the roof to melt snow have been tried. Has been.

However, in the method of burying the hot water pipe on the rooftop, the hot water pipe meanders to secure the heat dissipation area, and the total length of the hot water pipe becomes longer accordingly. Is difficult to find the leaked area, and the water leaked from the hot water pipe may flow directly to the living area under the floor.Furthermore, to repair the leaked area, the concrete that constitutes the rooftop is temporarily repaired. Since it had to be peeled off, there was a problem that repair work would take a lot of time.

In addition, the method of performing snow melting using an electric heater has a problem that running cost is high and that when the heater is broken, it is extremely difficult to find and repair the broken portion.

The present invention has been made in view of the above circumstances, and an object thereof is to provide a concrete panel that can be handled as a unit and that can easily deal with water leakage.

Means for Solving the Problems In order to achieve the above-mentioned object, the present invention provides heat supply and discharge by a heat medium distribution pipe, and distributes heat to the entire surface by a heat pipe, and further, a heat medium distribution pipe. More specifically, the present invention forms a flat plate made of concrete, in which a heat pipe and one end of the heat pipe extending substantially along the plate surface direction are provided. A heat medium flow pipe connected so as to be able to exchange heat is embedded, and both ends of the heat medium flow pipe are further projected to the side surface.

Action The concrete panel of the present invention is used, for example, when laid on a rooftop, and if hot water is flowed through the heat medium flow pipe in the presence of snow, the end portion of the heat pipe connected to the heat medium flow pipe and the other end portion As a result, the heat pipe transports the heat of the heat medium to the entire surface of the concrete panel to disperse the heat, and the heat melts the snow accumulated on the upper surface of the concrete panel. Further, in the concrete panel of the present invention, even if the heat medium leaks, it is clear that the location is the heat medium flow pipe arranged at one end side of the heat pipe, so that the leak can be easily found and repaired. It

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

FIG. 1 is a perspective view showing an embodiment of the present invention. A concrete panel 1 shown here is a flat plate body having a projecting portion 2 having a slightly narrowed width by cutting out a corner portion at one end in the longitudinal direction. Yes, it is made of concrete. A heat medium flow pipe for flowing a heat medium, for example, hot water, that is, a hot water pipe 3 is embedded in the protruding portion 2 in the width direction, and the hot water pipe 3 is provided along one side with the hot water pipe 3 as one end side. A plurality of heat pipes 4 that extend vertically from are embedded in the longitudinal direction. Both ends of the hot water pipe 3 are projected to a side surface side of the concrete panel 1, that is, a portion where a corner portion is cut out so that the hot water pipe 3 and a hot water supply pipe (not shown) of another concrete panel 1 can be connected. There is. A step 5 is formed at the upper end of the inner side surface of the notch at the corner, and a cover 6 described later is engaged with the step 5 to cover the protruding portion of the hot water pipe 3. . Further, the heat pipe 4 is such that a condensable fluid such as water is sealed as a working fluid inside a sealed tube, and a wick for generating a capillary pressure is further provided inside the heat pipe 4 as necessary. The hot water pipe 3 is connected so that heat can be exchanged between the two. Specifically, as shown in a sectional view in FIG. 2, the heat pipe 4
One end of is configured as a double pipe having the hot water pipe 3 as an inner pipe, and the working fluid is configured to receive heat from the hot water pipe 3 and evaporate.

FIG. 3 and FIG. 4 are views showing the usage state of the concrete panel 1 described above, in which a plurality of concrete panels 1 are installed on the rooftop 7 in a state of being arranged in parallel adjacent to each other, Moreover, the hot water pipes 3 in each concrete panel 1 are sequentially connected, and the connecting portion is covered and protected by the cover 6 which is engaged with the step portion 5 and covered. In this state, the hot water pipe 3 in each concrete panel 1 is located on the drainage groove 8 formed on the rooftop 7.

When there is snow, when hot water is supplied from the hot water pipe 3 of the concrete panel 1 located on one end side, the hot water flows through the hot water pipe 3 of each concrete panel 1. Therefore, in each concrete panel 1, heat is supplied to one end of each heat pipe 4, and as a result, the heat is transported so that the heat pipe 4 disperses the heat over each concrete panel 1. Melt the snow on the top. Water generated as a result of snow melting flows through the gaps between the concrete panels 1 to the roof surface 7 and is discharged to a predetermined location via the drainage groove 8. In addition, if there is a leak of warm water, the leaked water is discharged through the drainage channel 8 on the lower side thereof and therefore does not enter indoors. If the cover 6 is removed, the leaked portion can be easily found. can do. Further, since each concrete panel 1 is independent of each other, if there is an abnormality in the hot water pipe 3 or the heat pipe 4, the hot water pipe 3 may be disconnected and the defective concrete panel 1 may be replaced. Therefore, repair is easy. Can be done

In the above embodiment, warm water is used as the heat medium and the case of melting snow on the roof is described as an example, but the invention is not limited to the above embodiment, and the heat medium distribution pipe is used in the summer. It can also be used to cool the roof by pouring cold water into it and at the same time to obtain hot water by solar heat. Further, it can be used not only for rooftops but also for snow melting or cooling on sidewalks.

Effect of the Invention As is clear from the above description, according to the concrete panel of the present invention, the location where the heat medium such as hot water flows is limited, so even if there is a leak of the heat medium, it can be easily found. Also, since it can be simply installed on the rooftop and used, there is no danger of leaking heat medium entering the room, and since it is possible to keep each one independently, it is easy to repair when there is an abnormality. be able to.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention, FIG. 2 is a cross-sectional view with a part thereof omitted, FIG. 3 is a schematic perspective view in use, and FIG. 4 is an IV of FIG. FIG. 4 is a cross-sectional view taken along line IV-IV. 1 ... Concrete panel, 3 ... Hot water pipe, 4 ... Heat pipe.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Creator Masataka Mochizuki 1-5-1 Kiba, Koto-ku, Tokyo Fujikura Electric Wire Co., Ltd. (72) Creator Koichi Masuko 1-1-5 Kiba, Koto-ku, Tokyo Fujikura Electric Wire Co., Ltd. (72) Creator Masahiko Ito 1-5-1, Kiba, Koto-ku, Tokyo Fujikura Electric Wire Co., Ltd. (56) Reference JP-A-62-280462 (JP, A)

Claims (1)

[Scope of utility model registration request] 1. A flat plate made of concrete, in which a heat pipe extending substantially in the plate surface direction and a heat medium distribution pipe having one end of the heat pipe connected so that heat can be transferred are buried. A concrete panel in which both ends of the heat medium flow pipe are projected to the side surface.