JP2000074403A - Cooling and heating panel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To thin an embedded layer by forming slits at both ends of a base plate corresponding to heat exchanging pipes of a pipe mat, guiding ends of the pipes from the slits to the plate, and disposing both the main pipes on a rear surface of the plate. SOLUTION: A plurality of slits 8 are formed at both ends of a base plate 1 corresponding to heat exchanging pipes of a pipe mat. That is, the slits 8 of the same number as that of the pipes 4 are formed at ends of the plate 1, the slits 8 are aligned at the same pitch as that of the pipes 4 and a width of the each slit 8 is formed in the same diameter as that of the pipe 4. The pipes 4 are respectively inserted into the slits 8 of the other end side of the plate 1. Accordingly, both the ends of the pipes 4 are guided from the slits 8 of both the ends of the plate 1, and both the main pipes are disposed on the rear surface of the plate 1. Plaster is sprayed until the pipes 4 are embedded. When the plaster is cured, the cooling and heating panel having an embedded layer 7 is completed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cooling and heating panel having a pipe mat embedded therein.

[0002]

2. Description of the Related Art FIGS. 9 and 10 show examples of a cooling / heating panel having a pipe mat embedded therein. As shown in FIG. 9, a resin pipe mat P is provided on the fixing surface 1a of the substrate 1. The pipe mat P is composed of a supply-side main pipe 2, a return-side main pipe 3, and a plurality of heat exchange pipes 4 communicating between the main pipes 2, 3, and has a mat shape as a whole.

That is, main pipes 2 and 3 having the same diameter are arranged in parallel with each other, and a plurality of heat exchange pipes 4 arranged at an appropriate pitch are welded to side surfaces of the main pipes 2 and 3. These heat exchange pipes 4
The diameter is sufficiently smaller than the diameter of the main pipes 2 and 3, and has flexibility. The supply side main pipe 2
And a connector 5 for connecting to the pump side at the left end of the drawing, and a connector 6 for closing the left end of the return main pipe 3 and connecting to the tank side at the right end of the drawing. ing.

The pipe mat P is fixed to the fixing surface 1a of the substrate 1.
Once provided, plaster having fluidity is sprayed on the fixing surface 1a. When the plaster is sprayed until the pipe mat P is completely buried, the plaster adheres not only to the fixing surface 1a of the substrate 1 but also to the periphery of the pipe mat P. Then, when the sprayed plaster is cured, as shown in FIG. 10, a cooling / heating panel having the buried layer 7 is completed. The connectors 5 and 6 provided on the main pipes 2 and 3 are exposed to the outside from the side surface of the buried layer 7 so that they can be connected to a pump or a tank (not shown).

[0005] When the air conditioner is installed, the air conditioner panel is installed on a ceiling or a wall while the buried layer 7 is directed to the room (not shown). Then, the connector 5 of the supply side main pipe 2 is connected to the pump side, and the connector 6 of the return side main pipe 3 is connected to the tank side. In the cooling and heating apparatus constructed as described above, when a fluid is supplied to the supply-side main pipe 2, the fluid is distributed to the heat exchange pipes 4 and returns from the return-side main pipe 3. Then, the fluid exchanges heat in the process of flowing through the heat exchange pipe 4 to perform cooling or heating via the surface of the buried layer 7.

[0006] In the cooling and heating panel described above, since the panel is formed in advance, the installation of the cooling and heating device can be easily performed. In addition, plaster having fluidity,
Since it cures in a state of being in close contact with the heat exchange pipe 4, there is almost no gap around it. Therefore, the heat exchange pipe 4 does not come into direct contact with the air, and even when cold water flows through the heat exchange pipe 4, it is possible to suppress the occurrence of dew condensation around it.

[0007]

In the above-mentioned conventional cooling and heating panel, plaster is sprayed until all of the pipe mats P are buried. However, pipe mat P
Has large diameter main pipes 2 and 3, if the plaster is sprayed until these main pipes 2 and 3 are completely buried, the buried layer 7 becomes thick.

When the buried layer 7 becomes thicker, it becomes heavier. For example, when the cooling / heating panel is installed on the ceiling side, the buried layer 7 may be separated from the substrate 1 by its own weight. In addition, as a matter of course, the entire panel for cooling and heating becomes heavy, and the transportability and the workability are impaired.

Further, as the buried layer 7 becomes thicker, cracks are more likely to occur and there is a problem in strength. In addition, if the buried layer 7 is thick, the distance from the surface thereof to the heat exchange pipe 4 is long, and the thermal efficiency is deteriorated. An object of the present invention is to provide a cooling and heating panel which can make a buried layer thin.

[0010]

The present invention comprises a substrate such as a wooden board, a metal plate, or a plaster board, a supply-side main pipe, a return-side main pipe, and a plurality of heat exchange pipes communicating between the main pipes. A cooling / heating panel provided with a resin-made pipe mat and a buried layer obtained by curing a material having fluidity on the fixing surface of the substrate with the pipe mat buried therein is assumed. In the first invention, a plurality of slits are formed at the end of the substrate corresponding to the heat exchange pipe of the pipe mat, and the end of the heat exchange pipe is guided from each slit to the back side of the substrate, It is characterized in that both main pipes are arranged on the back surface of the substrate. The second invention is characterized in that, in the first invention, a pipe groove which is continuous with the slit is formed on the fixing surface of the substrate.

[0011]

1 to 8 show an embodiment of a cooling and heating panel according to the present invention. The cooling and heating panel of this embodiment is characterized in that a slit 8 is formed at the end of the substrate 1, and in the following, this point will be mainly described, and the same as the conventional cooling and heating panel will be described. The components are denoted by the same reference numerals, and detailed description thereof will be omitted. FIG.
As shown in FIG. 1, a plurality of slits 8 are formed at both ends of a substrate 1 made of a veneer plate so as to correspond to the heat exchange pipes 4 of the pipe mat P. That is, the same number of slits 8 as the number of heat exchange pipes 4 are formed at the end of the substrate 1, and these slits 8 are arranged at the same pitch as the pitch of the heat exchange pipes 4. Then, the width of each slit 8 is changed by the heat exchange pipe 4
The diameter is almost the same.

A pipe mat P is provided on the substrate 1 as follows. As shown in FIG. 2A, one of the main pipes 2 is arranged on the back surface of the substrate 1 and the heat exchange pipe 4 is connected to the fixing surface 1a from each slit 8 on one end side of the substrate 1. Lead to the side. Then, FIG.
As shown in FIG.
The heat exchange pipe 4 is inserted into each of the slits 8 on the other end of the substrate 1 while pulling over the other end of the substrate 1 so as to get over the end face of the other end. Therefore, both ends of the heat exchange pipe 4 are guided to the back side of the substrate 1 from the respective slits 8 at both ends of the substrate 1, and both main pipes 2 and 3 are arranged on the back side of the substrate 1.

In order to allow the other main pipe 3 to pass over the other end of the substrate 1 while one of the main pipes 2 is arranged at one end of the substrate 1, The length of the heat exchange pipe 4 has an appropriate margin. Also, as shown in FIGS. 2B and 3, if the pipe mat P is provided, and the reinforcing material 9 is attached by crossing the slits 8 at both ends of the back surface of the substrate 1, the strength of the substrate 1 is secured. be able to.

After the pipe mat P is provided as described above, plaster having fluidity is sprayed on the fixing surface 1a of the substrate 1. Then, a plaster is sprayed until the heat exchange pipe 4 of the pipe mat P is completely buried, and the plaster is hardened. As shown in FIG. 3, a cooling / heating panel having a buried layer 7 is completed. Become.

In the cooling and heating panel of the embodiment described above,
Since the plaster may be sprayed until the small-diameter heat exchange pipes 4 of the pipe mat P are buried, the buried layer 7 can be made thin. The thinner the buried layer 7 is, the lighter it becomes. For example, even when the cooling / heating panel is installed on the ceiling side, the buried layer 7 is less likely to be separated from the substrate 1 side by its own weight. Further, the weight of the cooling and heating panel as a whole can be reduced, and the transportability and the workability can be improved. Further, as the buried layer 7 becomes thinner, cracks are less likely to occur. Moreover, when the buried layer 7 is thinner, the distance from the surface of the buried layer 7 to the heat exchange pipe 4 is shorter, and the thermal efficiency can be increased.

It is desirable to hold the heat exchange pipe 4 of the pipe mat P on the fixing surface 1a of the substrate 1 before spraying the plaster. For example, as shown in FIG. 4, a holding member 10 for holding the heat exchange pipe 4 may be used. The holding member 10 includes a pair of crosspieces 11 positioned in parallel.
And a connecting portion 12 connecting the pair of crosspieces 11. Each of the cross sections 11 is formed with a circular fitting portion 13 having a diameter substantially equal to the diameter of the heat exchange pipe 4.
The fitting portions 13 are opposed to each other. In addition, each crosspiece 11
In the longitudinal direction, the fitting portions 13 are arranged at the same pitch as the pitch of the heat exchange pipe 4. Then, the holding member 10 is fixed to the fixing surface 1 a of the substrate 1 by nailing the connecting portion 12 or the like.

By using the holding member 10 as described above,
The heat exchange pipe 4 can be held straight by fitting the heat exchange pipe 4 into the fitting portion 13 facing between the crosspieces 11. Therefore, all heat exchange pipes 4
Can be maintained in parallel, the pitch can be maintained, and it is possible to prevent a rough part and a dense part from being formed between the adjacent heat exchange pipes 4. And if there is no rough part and no dense part between the adjacent heat exchange pipes 4, it is possible to eliminate temperature unevenness.

Instead of using the holding member 10 as described above, a pipe groove 14 may be formed in the fixing surface 1a of the substrate 1 so as to be continuous with each slit 8 as shown in FIG. If these pipe grooves 14 are arranged in parallel, the heat exchange pipe 4 guided from each slit 8 to the fixing surface 1a side of the substrate 1 is fitted into the pipe groove 14 to hold the heat exchange pipe 4 straight. be able to. Therefore, all the heat exchange pipes 4 can be kept parallel, the pitch can be maintained, and temperature unevenness can be eliminated. Moreover, if the heat exchange pipe 4 is inserted into the pipe groove 14, the buried layer 7 can be further thinned by the depth of the pipe groove 14.

If necessary, as shown in FIG.
The lath sheet 15 may be embedded in the embedding layer 7 together with the pipe mat P. As the lath sheet 15, for example, a wire lath in which a metal wire is braided may be used. Then, the lath sheet 15 is firmly fixed to the fixing surface 1a of the substrate 1 with a tucker needle.
The heat exchange pipes 4 of the pipe mat P are arranged above.

By embedding the lath sheet 15 in this manner, the strength of the embedding layer 7 can be increased, and, for example, cracks can be prevented. Further, even if a crack occurs, the growth of the crack can be suppressed. Further, the plaster constituting the buried layer 7 is not only fixed to the fixing surface 1a of the substrate 1, but also
Can be firmly fixed. Therefore,
The buried layer 7 can be effectively prevented from peeling off from the substrate 1 side. 6, the heat exchange pipes 4 of the pipe mat P are arranged on the fixing surface 1a of the substrate 1 and then the lath sheet 15 is fixed to the substrate 1 so as to cover the heat exchange pipes 4. It may be fixed to the surface 1a.

When the lath sheet 15 is used as described above, the lath sheet 15 may be pressed to form a corrugated shape in which the peaks 16 and the valleys 17 are continuously repeated in the width direction as shown in FIG. Then, although not specifically shown, each of the heat exchange pipes 4 of the pipe mat P is
The heat exchange pipe 4 can be held straight if it is fitted into each valley 17 of the lath sheet 15. Therefore, even without using the holding member 10 described above, all the heat exchange pipes 4 can be kept parallel, the pitch can be maintained, and the temperature unevenness can be eliminated.

Further, if the pipe mat P is composed of a supply-side main pipe 2, a return-side main pipe 3, and a plurality of heat exchange pipes 4 communicating between the main pipes 2, 3, for example, A type as shown in FIG. 8 may be used. In this type, the flexible heat exchange pipe 4 is U-turned so that the two main pipes 2, 3
Are located on the same side. The main pipes 2 and 3 are shifted in the axial direction so that adjacent heat exchange pipes 4 are arranged at an appropriate pitch.

When this pipe mat P is used, both main pipes 2 and 3 are located on the same side, so that only slit 8 is formed at one end of substrate 1 and both main pipes 2 and 3 are formed.
Can be arranged on the back surface of the substrate 1. Therefore,
The processing of the substrate 1 becomes simpler and the cost can be reduced. In addition, since the main pipes 2 and 3 are located on the same end side of the cooling and heating panel, when installing the cooling and heating panel on a ceiling or a wall, the main pipe can be moved without moving. 2, 3 can be connected to the pump side and the tank side, respectively.

The substrate 1 is not limited to a plywood, but may be another wooden plate, a metal plate, a plaster board, or the like. In addition, even if the lath sheet 15 is not provided, if the unevenness is provided on the fixing surface 1a of the substrate 1 by any method, the plaster can be firmly fixed and can be hardly peeled off. Further, as the material having fluidity according to the present invention, mortar or the like may be used in addition to the plaster. Further, the material may contain glass fiber or the like in order to increase the strength.

[0025]

According to the first aspect of the present invention, the buried layer can be made thin because the material having fluidity may be sprayed until the heat exchange pipe having a small diameter is buried. And
The thinner the buried layer becomes, the lighter it becomes. For example, even when the cooling / heating panel is installed on the ceiling side, the buried layer is less likely to peel off from the substrate side due to its own weight. Further, the weight of the cooling and heating panel as a whole can be reduced, and transportability and workability can be improved. Further, as the buried layer becomes thinner, cracks are less likely to occur. In addition, when the buried layer is thin, the distance from the surface to the heat exchange pipe is short, and the thermal efficiency can be increased.

According to the second aspect of the invention, if the heat exchange pipe guided from each slit to the fixing surface side of the substrate is fitted into the pipe groove, the heat exchange pipe can be held straight. Therefore, it is possible to keep all the heat exchange pipes parallel and maintain the pitch thereof, and it is possible to prevent a rough place and a dense place from being formed between adjacent heat exchange pipes. Then, if there is no rough part and no dense part between adjacent heat exchange pipes, it is possible to eliminate temperature unevenness. Moreover, if the heat exchange pipe is inserted into the pipe groove, the buried layer can be further thinned by the depth of the pipe groove.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a substrate 1. FIG.

FIGS. 2A and 2B are side views showing a state in which a pipe mat P is provided on a substrate 1; FIG. 2A shows a state in which a main pipe 2 is arranged on the back surface of the substrate 1; FIG. 2 shows a state of being arranged on the back surface of the substrate 1.

FIG. 3 is a perspective view showing a state where heat exchange pipes 4 are arranged on a fixing surface 1a of a substrate 1 and plaster is sprayed.

FIG. 4 is a perspective view showing a state where the heat exchange pipe 4 is fitted into the holding member 10.

FIG. 5 is a perspective view showing an end portion of the substrate 1, in which a pipe groove 14 is formed in a fixing surface 1a.

FIG. 6 is a perspective view showing the substrate 1 to which the lath sheet 15 is fixed.

FIG. 7 is a perspective view showing an end of a lath sheet 15 having a corrugated shape.

FIG. 8 is a view showing another type of pipe mat P;

FIG. 9 is a view showing a state in which heat exchange pipes 4 are arranged on a substrate 1 in a conventional cooling and heating panel.

FIG. 10 is a perspective view showing a state in which heat exchange pipes 4 are arranged on a substrate 1 and plaster is sprayed on a conventional cooling / heating panel.

[Explanation of symbols]

 P Pipe mat 1 Substrate 1a Fixing surface 2 Supply side main pipe 3 Return side main pipe 4 Heat exchange pipe 7 Buried layer 8 Slit 14 Pipe groove

Claims (2)

[Claims] 1. A resin pipe mat comprising a substrate such as a wooden board, a metal plate, and a plaster board, a supply main pipe, a return main pipe, and a plurality of heat exchange pipes communicating between the main pipes. On the fixed surface of
In a cooling / heating panel provided with a buried layer formed by hardening a material having fluidity in a state where a pipe mat is buried, a plurality of slits are provided at an end of the substrate in correspondence with a heat exchange pipe of the pipe mat. A panel for cooling and heating, wherein an end of the heat exchange pipe is guided from each slit to the back side of the substrate, and both main pipes are arranged on the back side of the substrate. 2. The panel for cooling and heating according to claim 1, wherein a pipe groove connected to the slit is formed on the fixing surface of the substrate.