JP2005156081A - Warm water type floor heating panel - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a warm water type floor heating panel for efficiently performing floor heating in the case of using a heat pump unit as a warm water heating heat source machine. <P>SOLUTION: This floor heating panel is provided with a heat insulating material 21 with a thickness of 21 mm formed of polystyrene foam with a decuple expansion ratio; radiating pipes 23 formed of cross-linked polyethylene and stored in pipe storage grooves 21a formed on the upper face side of the heat insulating material 21, through heat transfer support members 22 formed of aluminum plates with a thickness of 150 μm; a heat transfer sheet 24 formed of aluminum foil with a thickness of 100 μm stuck to the upper face of the heat insulating material 21 in a state of contacting both the radiating pipes 23 stored in the pipe storage grooves 21a, and the heat transfer support members 22; and a floor finishing material 25 with a thickness of 3 mm formed of plywood or a hard resin plate laminated on the upper face of the heat insulating material 21 through the heat transfer sheet 24. The radiating pipes 23 are disposed at the pitch of 75 mm according to a predetermined pipe pattern. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a hot water type floor heating panel that performs floor heating using hot water generated by a hot water heating heat source.

  The heating terminal device used in the hot water heating system for heating using hot water generated by the hot water heating heat source machine is a hot water type with a built-in radiating pipe for circulating hot water, which is laid on the floor base There is a floor heating panel, and when such hot water type floor heating panel is normally supplied with hot water of about 60 ° C., the surface temperature rises to about 30 ° C. when the room temperature is 20 ° C. .

Japanese Patent Laid-Open No. 11-211115

  By the way, in recent years, there is a case where a heat pump unit that can efficiently generate hot water using the heat retained in the outside air is used as a hot water heating heat source machine. When hot water of about 60 ° C. sent from the heat pump unit is supplied to the hot water type floor heating panel, heat is radiated by the hot water type floor heating panel, and hot water having a relatively high temperature of about 50 ° C. returns to the heat pump unit. come. Since the difference between the temperature of the warm water sent out and the temperature of the warm water returning is relatively small, there is a problem that the operation capability as the heat pump unit is not exhibited and the heating operation cannot be performed efficiently.

  In addition, when circulating hot water having a certain high temperature such as 60 ° C. to the hot water type floor heating panel, the heat dissipation loss of the hot water in the pipe portion connecting the hot water heating source and the hot water type floor heating panel also increases. There is a problem that the running cost increases.

  Then, the subject of this invention is providing the hot water type floor heating panel which can perform floor heating efficiently, when using a heat pump unit as a hot water heating heat source machine.

  In order to solve the above problem, the invention according to claim 1 is accommodated in a heat insulating material formed of a resin foam having a foaming ratio of 10 to 20 times, and a pipe receiving groove formed on the upper surface side of the heat insulating material. The heat-dissipating pipe to which hot water is circulated and supplied, the heat transfer sheet covering the upper surface of the heat insulating material in contact with the heat dissipating pipe accommodated in the pipe accommodating groove, and the heat transfer sheet, A floor finishing material having a thickness of 6 mm or less, which is laminated on the upper surface of the heat insulating material, and the heat insulating material has a thickness five times or more that of the floor finishing material. A floor heating panel is provided.

  The invention according to claim 2 is the hot water type floor heating panel according to claim 1, wherein the heat transfer sheet is formed of an aluminum foil having a thickness of 80 μm or more.

  The invention according to claim 3 is the hot water type floor heating panel according to claim 1 or 2, wherein the pipe housing groove has the heat transfer support material in contact with the heat transfer sheet. The heat radiating pipe was accommodated.

  The invention according to claim 4 is the hot water floor heating panel according to claim 1 or 2, wherein an outer peripheral surface of the heat radiating pipe is covered with a heat transfer coating material, and the heat transfer coating material is directly or The heat transfer sheet is brought into contact with the heat transfer member.

  According to a fifth aspect of the present invention, in the hot water floor heating panel according to the first, second, third or fourth aspect of the present invention, a gap is formed below the accommodated heat radiating pipe as the pipe accommodating groove. Such a groove shape was adopted.

  As described above, in the hot water type floor heating panel according to the first aspect of the present invention, the thickness of the floor finish is as small as 6 mm or less, and the heat insulating material has a thickness five times or more that of the floor finish. Therefore, it is difficult for the heat released from the heat radiating pipe to escape to the floor base side, and most of the heat released from the heat radiating pipe is used for heating the floor finishing material. Even if hot water having a low temperature is circulated and supplied to the heat radiating pipe, the surface temperature of the floor finish can be raised to about 30 ° C. when the room temperature is 20 ° C. Therefore, even if the supply temperature of the hot water by the hot water heating heat source device is lowered from about 60 ° C. to about 40 ° C., the same heating capacity as that of the conventional hot water type floor heating panel when hot water of about 60 ° C. is supplied is exhibited. It becomes possible.

  Moreover, when the hot water of about 40 ° C. generated by the hot water heating heat source machine is circulated and supplied to the heat radiating pipe of this hot water type floor heating panel, the hot water having a relatively low temperature below 40 ° C. is returned to the hot water heating heat source machine. Therefore, when a heat pump unit is used as a hot water heating heat source machine, the operating capacity of the heat pump unit can be kept low, and the heating operation can be performed efficiently.

  Moreover, when the hot water of about 40 ° C. generated by the hot water heating heat source machine is circulated and supplied to this hot water type floor heating panel, compared with the case where the hot water of about 60 ° C. is circulated and supplied to the conventional hot water type floor heating panel, Since the heat dissipation loss of the hot water in the pipe portion connecting the hot water heating heat source machine and the hot water type floor heating panel is reduced, an effect that the running cost can be suppressed is also obtained.

  In particular, in the hot water type floor heating panel according to the second aspect of the present invention, the heat transfer sheet is formed by an aluminum foil having a thickness of 80 μm or more excellent in thermal conductivity. Evenly and efficiently transmitted to the material, the surface temperature of the floor finishing material can be increased evenly.

  Moreover, in the hot water type floor heating panel of the invention according to claim 3, since the heat radiating pipe is housed in the pipe housing groove via the heat transfer support material in contact with the heat transfer sheet, it is discharged from the heat radiating pipe. The heat to be transmitted is reliably transmitted to the heat transfer sheet via the heat transfer support member, and as a result, the surface temperature of the floor finish is likely to rise.

  Moreover, in the hot water type floor heating panel of the invention according to claim 4, the outer peripheral surface of the heat radiating pipe is covered with a heat transfer coating material, and the heat transfer coating material is directly or via a heat transfer member. Since it is in contact with the sheet, the heat released from the heat radiating pipe is reliably transmitted to the heat transfer sheet through the heat transfer coating material, and as a result, the surface temperature of the floor finish tends to increase.

  Moreover, in the hot water type floor heating panel of the invention according to claim 5, a gap is formed below the heat radiating pipe accommodated in the pipe accommodation groove, and this gap has an excellent heat insulating performance. Since air is present, the movement of the heat released from the heat radiating pipe to the floor base side is suppressed, and as a result, the effect that the surface temperature of the floor finish is further increased is obtained.

Hereinafter, embodiments will be described with reference to the drawings. FIG. 1 shows a hot water heating system 1 for heating a living room. As shown in the figure, the hot water heating system 1 includes a hot water heating heat source unit 10 that generates hot water of a predetermined temperature, and floor heating using hot water generated by the hot water heating heat source unit 10. And a hot water type floor heating panel 20 laid in a floor heating area on the floor base, and the hot water heating heat source unit 10 is constituted by a heat pump unit using CO ₂ as a refrigerant.

As shown in the figure, the heat pump unit constituting the hot water heating heat source unit 10 radiates heat to the compressor 11 that compresses the vapor of the refrigerant composed of CO ₂ into high-temperature and high-pressure superheated steam. The condenser 12 that condenses the refrigerant that is the high-temperature and high-pressure superheated steam, the expansion valve 13 that makes the liquid refrigerant adiabatically expand to a low-temperature and low-pressure wet steam, and the wetness that draws heat from the surroundings and has a high liquid content. The evaporator 14 that evaporates the refrigerant that is vapor is connected by the refrigerant pipe 15, and is connected by the hot water circulation pipe 31 that is connected to the hot water floor heating panel 20 and the hot water circulation pump 32 that is installed in the hot water circulation pipe 31. The hot water after heat dissipation returned from the hot water type floor heating panel 20 is supplied to the condenser 12, and heat is exchanged with a high-temperature refrigerant in the condenser 12. The temperature is raised to the extent.

  As shown in FIGS. 2A and 2B, the hot water type floor heating panel 20 includes a heat insulating material 21 having a thickness of 21 mm formed of expanded polystyrene having a foaming ratio of 10 times, and an upper surface of the heat insulating material 21. A 5A heat radiating pipe 23 made of cross-linked polyethylene, in which hot water is circulated and supplied, is received in a pipe receiving groove 21a formed on the side through a heat transfer support 22 formed of an aluminum plate having a thickness of 150 μm, A heat transfer sheet 24 formed of an aluminum foil having a thickness of 100 μm, which is attached to the upper surface of the heat insulating material 21 in a state where it is in contact with both the heat radiating pipe 23 and the heat transfer support material 22 housed in the pipe housing groove 21a. And a floor finishing material 25 having a thickness of 3 mm formed of a plywood or a hard resin plate laminated on the upper surface of the heat insulating material 21 via the heat transfer sheet 24, and The loops 23 are arranged at a 75 mm pitch according to a predetermined pipe pattern.

  The heat transfer support member 22 includes a pipe support portion 22a having a U-shaped cross section received in the pipe receiving groove 21a of the heat insulating material 21 in a state in which the heat radiating pipe 23 is fitted, and an upper end of the pipe support portion 22a. And a hooking portion 22b that protrudes outward in the width direction and is hooked on the upper surface of the heat insulating material 21. The hooking portion 22b contacts the heat transfer sheet 24, thereby contacting the pipe support portion 22a. The heat released from the heat radiating pipe 23 is reliably transmitted to the heat transfer sheet 24.

  As described above, in the hot water type floor heating panel 20, the thickness of the floor finishing material 25 is as small as 3 mm, and the thickness of the heat insulating material 21 is seven times that of the floor finishing material 25. Therefore, the heat released from the heat radiating pipe 23 is unlikely to escape to the floor base side, and most of the heat released from the heat radiating pipe 23 is used for heating the floor finish 25. Even when hot water having a low temperature is circulated and supplied to the heat radiating pipe 23, the surface temperature of the floor covering 25 can be raised to about 30 ° C. when the room temperature is 20 ° C. Therefore, as in the hot water heating system 1, even when hot water of about 40 ° C. generated by the hot water heating heat source unit 10 is circulated and supplied to the hot water floor heating panel 20, conventional hot water of about 60 ° C. is supplied. The same heating capacity as that of the hot water type floor heating panel can be exhibited.

  Further, when hot water of about 40 ° C. generated by the hot water heating heat source unit 10 is circulated and supplied to the heat radiating pipe 23 of the hot water type floor heating panel 20, hot water having a relatively low temperature below 40 ° C. is heated to the hot water heating heat source unit 10. Therefore, when the heat pump unit is used as the hot water heating heat source unit 10 as in the hot water heating system 1 described above, the coefficient of performance of the heat pump unit is increased, and the heating operation can be performed efficiently. .

  Moreover, when the hot water of about 40 ° C. generated by the hot water heating heat source unit 10 is circulated and supplied to the hot water type floor heating panel 20, the hot water of about 60 ° C. is circulated and supplied to the conventional hot water type floor heating panel. And since the heat dissipation loss of the warm water in the warm water circulation piping 31 part which has connected the warm water heating heat source machine 10 and the warm water type floor heating panel 20 becomes small, the effect that a running cost can be suppressed is also acquired.

  Further, in this hot water type floor heating panel 20, the heat transfer sheet 24 is formed of an aluminum foil having a thickness of 100 μm excellent in thermal conductivity, so that the heat released from the heat radiating pipe 23 is uniformly applied to the floor finish 25. And it can transmit efficiently and can raise the surface temperature of the floor finish 25 uniformly.

  Moreover, in this hot water type floor heating panel 20, not only the heat radiating pipe 23 is in direct contact with the heat transfer sheet 24 but also a heat transfer support material formed by an aluminum plate having a thickness of 150 μm excellent in thermal conductivity. 22 is in contact with the heat transfer sheet 24, the heat released from the heat radiating pipe 23 is reliably transmitted to the heat transfer sheet 24, and as a result, the surface temperature of the floor covering 25 is likely to rise. The effect of becoming is obtained.

  In the above-described embodiment, the floor finish 25 having a thickness of 3 mm is used. However, the present invention is not limited to this. If the thickness is 6 mm or less, a floor finish having various thicknesses is used. Is possible.

  Moreover, in embodiment mentioned above, although the heat insulating material 21 of thickness 21mm formed with the foaming polystyrene whose expansion ratio is 10 times is used, it is not limited to this, As an insulating material, expansion ratio 10 to 20 times of various resin foams can be used, and the thickness may be set to 5 times or more the thickness of the floor finish. The reason why the upper limit of the expansion ratio of the heat insulating material is set to 20 times is that when the expansion ratio exceeds 20 times, the compressive strength cannot be ensured.

  In the embodiment described above, an aluminum foil having a thickness of 100 μm is used as the heat transfer sheet 24, but the present invention is not limited to this, and an aluminum having a thickness of 80 μm or more is considered in consideration of material costs and the like. A foil may be appropriately selected and used.

  Further, in the above-described embodiment, the heat transfer support material 22 formed of an aluminum plate having a thickness of 150 μm is used. However, the present invention is not limited to this. For example, FIGS. 3A and 3B are used. As shown in FIG. 4, a heat transfer coating 22A made of aluminum tape having a thickness of 50 μm is wound over the entire length of the heat radiating pipe 23 so as to cover the outer peripheral surface, as shown in FIG. In a state where the heat radiating pipe 23 is accommodated in the pipe accommodating groove 21a of the heat insulating material 21, the heat transfer covering material 22A covering the heat radiating pipe 23 is brought into direct contact with the heat transfer sheet 24, and from an aluminum foil having a thickness of 40 μm. The heat transfer sheet 24 may be brought into contact with the heat transfer member 22B.

  Specifically, as shown in FIG. 5A, a heat transfer member 22B having a predetermined width made of an aluminum foil having a thickness of 40 μm is formed on the upper surface of the heat insulating material 21 so as to completely cover each pipe housing groove 21a. After the sticking, as shown in FIG. 4B, the heat transfer member 22B attached to the heat insulating material 21 is divided at the center portion in the width direction of each pipe housing groove 21a, and FIG. As shown, when the heat radiating pipe 23 around which the heat transfer coating 22A is wound is accommodated in the pipe accommodation groove 21a from above the heat transfer member 22B, the divided heat transfer member 22B comes into contact with the heat transfer coating 22A. In this state, it enters the pipe housing groove 21a together with the heat radiating pipe 23. Therefore, when the floor finishing material 25 is laminated on the upper surface of the heat insulating material 21 in this state via the heat transfer sheet 24, as shown in FIG. Hot water type floor heating panel 20A is completed.

  In particular, a gap 21b is formed between the heat radiating pipe 23 and the heat insulating material 21 by forming a narrow groove 21b on the bottom surface of the pipe receiving groove 21a of the heat insulating material 21 as in the hot water floor heating panel 20A. If this is done, air having excellent heat insulation performance is interposed between the heat radiating pipe 23 and the heat insulating material 21 in this gap, so that the heat released from the heat radiating pipe 23 moves to the floor base side. As a result, the surface temperature of the floor finish 25 can be further increased. Therefore, it is desirable to form a similar gap between the heat radiating pipe 23 and the heat insulating material 21 for the hot water type floor heating panel 20 described above. However, the method of forming the gap is not limited to this, and a gap is formed between the heat radiating pipe 23 and the heat insulating material 21 by providing a protrusion supporting the heat radiating pipe 23 on the bottom surface of the pipe receiving groove 21a. It is also possible to do.

BRIEF DESCRIPTION OF THE DRAWINGS It is a schematic block diagram which shows the warm water heating system in which one Embodiment of the warm water type floor heating panel concerning this invention is used. (A) is sectional drawing which shows a warm water type floor heating panel same as the above, (b) is an exploded sectional view which shows a warm water type floor heating panel same as the above. (A) is sectional drawing which shows the hot water type floor heating panel which is other embodiment, (b) is an exploded sectional view which shows the hot water type floor heating panel same as the above. It is a perspective view which shows the thermal radiation pipe in which the heat-transfer coating | covering material was wound, which comprises the hot water type floor heating panel same as the above. (A)-(c) is process drawing which shows the manufacturing process of a warm water type floor heating panel same as the above.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Hot water heating system 10 Hot water heating heat source machine 11 Compressor 12 Condenser 13 Expansion valve 14 Evaporator 15 Refrigerant piping 20, 20A Hot water type floor heating panel 21 Heat insulating material 21a Pipe accommodation groove 21b Groove 22 Heat transfer support material 22a Pipe support part 22b Latch part 22A Heat transfer coating material 22B Heat transfer member 23 Radiation pipe 24 Heat transfer sheet 25 Floor finish material 31 Hot water circulation pipe 32 Hot water circulation pump

Claims (5)

A heat insulating material formed of a resin foam having an expansion ratio of 10 to 20 times;
A heat radiating pipe that is accommodated in a pipe accommodation groove formed on the upper surface side of the heat insulating material and is circulated and supplied with hot water;
A heat transfer sheet that covers the upper surface of the heat insulating material in a state in contact with the heat radiating pipe housed in the pipe housing groove,
A floor finishing material having a thickness of 6 mm or less, laminated on the upper surface of the heat insulating material via the heat transfer sheet;
The hot water floor heating panel according to claim 1, wherein the heat insulating material has a thickness five times or more that of the floor finishing material.   The hot water floor heating panel according to claim 1, wherein the heat transfer sheet is formed of an aluminum foil having a thickness of 80 µm or more.   The hot water type floor heating panel according to claim 1 or 2, wherein the heat radiating pipe is accommodated in the pipe accommodation groove via a heat transfer support member in contact with the heat transfer sheet. The outer peripheral surface of the heat radiating pipe is covered with a heat transfer coating material,
The hot-water type floor heating panel according to claim 1 or 2, wherein the heat transfer coating material is in contact with the heat transfer sheet directly or via a heat transfer member.   The hot water floor heating panel according to claim 1, 2, 3, or 4, wherein the pipe housing groove is formed with a gap below the housed heat radiating pipe.

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