JP2012247110A - Ceiling panel for radiation air conditioning and radiation air conditioning system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a ceiling panel for radiation air conditioning and a radiation air conditioning system, superior in air conditioning performance.SOLUTION: This ceiling panel 10 for radiation air conditioning is disposed on a perimeter-side ceiling, and includes a louver-type aluminum fin 18 for increasing a surface area of the panel. A refrigerant pipe 20 is disposed on the aluminum fin 18, and ventilation slits 28 for guiding the air in the ceiling 4 into a room 6, are formed among the louvers of the aluminum fin 18. In this radiation air conditioning system, the ceiling panel 10 for radiation air conditioning is disposed on the perimeter-side ceiling, and the indoor air conditioning at the perimeter side is performed by radiation and natural convection by cooling action of the ceiling panel 10 for radiation air conditioning.

Description

  The present invention relates to a ceiling panel for radiant air conditioning and a radiant air conditioning system.

  DESCRIPTION OF RELATED ART Conventionally, the ceiling radiation type air conditioning system which performs indoor air conditioning with the radiant heat from a ceiling panel is known (for example, refer patent documents 1-3). In general, with respect to the heat load in summer, there is a problem that the air conditioning capability on the perimeter side is insufficient only with radiant air conditioning. For this reason, in Patent Document 1, a space in the ceiling is divided into an interior side and a perimeter side, and a fan is provided in the partition. When the thermal load on the perimeter side is high, the fan is operated to cool the interior side cooling air. The air-conditioning capacity is enhanced by supplying to the perimeter side.

JP 2011-2105 A JP 2010-190444 A Japanese Patent Laid-Open No. 2006-214697

  By the way, since the above-mentioned conventional air conditioning system of Patent Document 1 requires a fan for sending cooling air from the interior side to the perimeter side, it may be disadvantageous in terms of power consumption and equipment cost. For this reason, development of the ceiling panel for radiation | air-conditioning which was excellent in the air-conditioning capability which can air-condition the perimeter side with high heat load, without using a fan was desired.

  This invention is made | formed in view of the above, Comprising: It aims at providing the ceiling panel for radiation | air-conditioning which was excellent in the air-conditioning capability, and a radiation | air-conditioning system.

  In order to solve the above-described problems and achieve the object, a ceiling panel for radiant air conditioning according to claim 1 of the present invention is a ceiling panel for radiant air conditioning provided on a ceiling on the perimeter side, and the panel surface area is increased. A louver-type aluminum fin for increasing is provided, and air conditioning on the perimeter side is performed by radiation and natural convection by the cooling action of the ceiling panel.

  Moreover, the ceiling panel for radiation | air-conditioning which concerns on Claim 2 of this invention has provided piping for refrigerant | coolants in the said aluminum fin in Claim 1 mentioned above.

  The ceiling panel for radiant air conditioning according to claim 3 of the present invention is characterized in that, in claim 1 or 2, the ventilation slit for guiding the air in the ceiling to the room is provided between the louvers of the aluminum fins. Features.

  A radiant air-conditioning system according to claim 4 of the present invention is a radiant air-conditioning system using the radiant air-conditioning ceiling panel according to any one of claims 1 to 3, wherein the radiant air-conditioning ceiling is used. A panel is provided on the perimeter side, and air conditioning on the perimeter side is performed by radiation and natural convection by the cooling action of the radiation air conditioning ceiling panel.

  According to claim 5 of the present invention, the radiation air conditioning system according to claim 4 is characterized in that the direction of the aluminum fins of the ceiling panel for radiation air conditioning is directed from the perimeter side to the interior side.

  The radiant air-conditioning system according to claim 6 of the present invention is characterized in that, in the above-described claim 4 or 5, an aluminum ceiling panel having a large number of ventilation holes is provided on the interior side.

  The radiant air-conditioning system according to claim 7 of the present invention has exhaust means for guiding indoor air from the vents of the aluminum ceiling panel into the ceiling and exhausting the air outside the room according to claim 6 described above. Features.

  According to the ceiling panel for radiant air conditioning according to the present invention, the ceiling panel for radiant air conditioning provided on the ceiling on the perimeter side, comprising louver-type aluminum fins for increasing the panel surface area, the air conditioning on the perimeter side Is performed by radiation and natural convection by the cooling action of the ceiling panel, so that the radiation ability from the panel is enhanced and the air conditioning ability is excellent.

  Further, according to the radiant air-conditioning system of the present invention, the radiant air-conditioning system using the above-described radiant air-conditioning ceiling panel, the radiant air-conditioning ceiling panel is provided on the perimeter side, Because it is done by radiation and natural convection due to the cooling action of the ceiling panel for air conditioning, air conditioning on the perimeter side with high heat load can be performed without using a fan, and energy saving and equipment cost reduction can be achieved Play.

FIG. 1 is a side sectional view showing an embodiment of a ceiling panel for radiant air conditioning according to the present invention. FIG. 2 is a top view of the ceiling panel for radiant air conditioning according to the present invention. FIG. 3 is a side sectional view taken along the line AA in FIG. FIG. 4 is a diagram showing an embodiment of a radiant air conditioning system according to the present invention. FIG. 5 is an enlarged view of the perimeter side of FIG. FIG. 6 is a top view of the ceiling panel on the interior side. FIG. 7 is a sectional side view taken along line BB in FIG. FIG. 8 is a top view showing the layout of the ventilation holes of the ceiling panel on the interior side. FIG. 9 is a diagram illustrating a smoke emission method of the radiant air conditioning system according to the present invention. FIG. 10 is a diagram illustrating a smoke emission method of a conventional radiant air conditioning system.

  Embodiments of a ceiling panel for radiant air conditioning and a radiant air conditioning system according to the present invention will be described below in detail with reference to the drawings. Note that the present invention is not limited to the embodiments.

[Ceiling panels for radiant air conditioning]
First, a ceiling panel for radiant air conditioning according to the present invention will be described.

  As shown in FIGS. 1-3, the ceiling panel 10 for radiation | air-conditioning which concerns on this invention is a ceiling panel for radiation | air-conditioning provided in the ceiling 2 of the perimeter side, Comprising: The plate-shaped base member 12 which has an unevenness | corrugation, A plurality of first aluminum plate portions 14, second plate portions 16, and louvered aluminum fins 18 that are provided on the lower surface side of the base member 12 and that are continuous in a staircase shape are provided. The aluminum fins 18 are for increasing the panel surface area.

  The first plate portion 14 and the second plate portion 16 are engaged with the concavities and convexities on the lower surface side of the base member 12, and a refrigerant pipe 20 is connected to the heat transfer portion 26 on the upper surface side of the second plate portion 16. It is fixed through. Here, the heat transfer part 26 can be formed by processing the second plate part 16, and the piping 20 may be directly installed on the second plate part 16 to improve the thermal efficiency. As the pipe 20, an aluminum three-layer pipe in which aluminum is coated with polyethylene can be used in consideration of heat transfer rate and corrosion resistance.

  Further, a first rib 22 is provided at the boundary between the second plate portion 16 and the aluminum fin 18, and the first rib 22 is nail-engaged with the unevenness on the lower surface side of the base member 12. A second rib 24 is provided between the intermediate portion of the first rib 22 and the heat transfer portion 26.

  A ventilation slit 28 for guiding the air in the ceiling 4 to the room 6 is provided between the louvers of the aluminum fins 18, that is, between the aluminum fins 18 and the first plate portion 14.

The operation and action of the above configuration will be described.
Heat from the refrigerant pipe 20 is transferred to the second plate portion 16 via the heat transfer portion 26. Heat from the second plate portion 16 is transmitted to the adjacent first plate portion 14 and aluminum fin 18. The indoor 6 is air-conditioned by the radiant heat from the first plate part 14, the second plate part 16, and the aluminum fins 18. Here, since the surface area of the panel is increased by the aluminum fins 18, the radiation capacity is enhanced, and a ceiling panel for radiation air conditioning excellent in air conditioning capacity can be provided. For example, cold water and hot water are used as the refrigerant.

[Radiation air conditioning system]
Next, the radiation air conditioning system according to the present invention will be described.

  As shown in FIGS. 4 and 5, a radiant air conditioning system 100 according to the present invention is a radiant air conditioning system using the above radiant air conditioning ceiling panel 10, and the radiant air conditioning ceiling panel 10 is provided on the perimeter side 8. The air conditioning on the perimeter side 8 is performed by radiation and natural convection S by the cooling action of the ceiling panel 10 for radiation air conditioning.

  Natural convection S is generated by an updraft due to heat on the perimeter side 8 and a downdraft due to the cooling action of the ceiling panel 10. In order to promote the generation of natural convection S, the direction of the aluminum fins 18 of the radiant air conditioning ceiling panel 10 is directed from the perimeter side 8 toward the interior side 9.

  Thus, according to the radiant air conditioning system 100 of the present invention, an excellent air conditioning capability can be exhibited by combining the air conditioning capability by the radiant heat of the ceiling panel 10 with the air conditioning capability by the natural convection S. By doing so, it is possible to cope with the perimeter heat load in summer only with the ceiling panel 10. Therefore, air conditioning on the perimeter side having a high heat load can be performed using natural convection without using a fan, and energy saving and facility cost reduction can be achieved.

  A ceiling panel 30 is provided on the ceiling of the interior side 9. As shown in FIGS. 6 and 7, the ceiling panel 30 includes an aluminum punching ceiling 34 having a large number of ventilation holes 32, and a refrigerant pipe 20 is provided on the upper surface side via a heat transfer portion 26. Yes.

  For example, as shown in FIG. 8, the aluminum punching ceiling 34 has a diameter of the vent holes 32 of about d = 2 mm and an arrangement pitch of about D = 5.5 mm. By using such an aluminum punching ceiling, the unevenness of the ceiling surface that is likely to occur in a metal ceiling panel can be made inconspicuous, and deterioration in aesthetics can be suppressed.

  In addition, the sound absorption performance can be improved by providing the vent holes 32 as compared with a flat metal ceiling panel. Further, a sound absorbing material may be installed on the upper surface side of the aluminum punching ceiling 34. In this way, the reverberation time can be shortened.

  By the way, in the conventional radiant air-conditioning system, as shown in FIG. 10, the air control ports 40 such as a ventilation port and a smoke exhaust port which are required to be installed by law are provided on the surface of the metal ceiling panel 38. Such a ceiling panel 38 may impair the appearance of the ceiling.

  Therefore, as shown in FIG. 9, in the radiant air conditioning system 100 of the present invention, a smoke exhaust duct 36 (exhaust means) that guides the air in the room 6 from the vent hole 32 of the aluminum punching ceiling 34 to the inside 4 of the ceiling and exhausts it to the outside. You may make it have. By doing in this way, the ceiling excellent in the design property which does not have a ventilation port or a smoke exhaust port can be comprised.

  If the ceiling chamber exhaust system is adopted as the ventilation system, the indoor air can be discharged into the ceiling from the vent hole 32 of the aluminum punching ceiling 34. As for the smoke exhaust system, if the ceiling chamber smoke exhaust system is adopted, it is possible to discharge smoke into the ceiling 4 from the vent hole 32 of the aluminum punching ceiling 34.

  Here, if the ceiling opening ratio of the aluminum punching ceiling 34 is set larger than that in the case of the normal ceiling chamber smoke exhaust system, the smoke exhaust port resistance is also reduced. Further, although there is a concern that the smoke layer descends prematurely due to the ceiling surface being cooled by the ceiling panel 30, according to the experiments by the present inventors, it has been confirmed that there is almost no difference in smoke layer depression. Yes.

  For this reason, the radiation air-conditioning system of this invention is excellent in the following (1)-(4) compared with the conventional radiation air-conditioning system.

(1) By using the radiant air conditioning ceiling panel 10 having a high air conditioning capability, it is possible to optimize the use as an air conditioner by selectively using the indoor interior side and the perimeter side. For example, in the case of a general office building, it is possible to supplement all the air conditioning with the ceiling panel 10 and it is not necessary to use it together with other air conditioning equipment.

(2) Further, by installing the ceiling panel 10 having excellent air conditioning capability on the ceiling of a place where the heat load is locally high on the interior side, the local air conditioning capability can be enhanced.

(3) By constructing the ceiling panel 30 on the interior side with an aluminum punched ceiling, it is possible to obtain a ceiling with excellent design and sound absorption, and it is possible to improve the comfort in the office space.

(4) By using a large number of ventilation holes 32 provided in the aluminum punching ceiling as ventilation / smoke holes, the air control openings 40 (see FIG. 10) installed on the conventional metal ceiling panel surface. ) Is not required, and the design can be improved and the cost can be reduced.

  As described above, according to the ceiling panel for radiant air conditioning according to the present invention, the ceiling panel for radiant air conditioning provided on the ceiling on the perimeter side, the louver-type aluminum fin for increasing the panel surface area is provided. In addition, since the air conditioning on the perimeter side is performed by radiation and natural convection by the cooling action of the ceiling panel, the radiation capacity from the panel is enhanced and the air conditioning capacity is excellent.

  Further, according to the radiant air-conditioning system of the present invention, the radiant air-conditioning system using the above-described radiant air-conditioning ceiling panel, the radiant air-conditioning ceiling panel is provided on the perimeter side, Since it is performed by radiation and natural convection due to the cooling action of the ceiling panel for air conditioning, air conditioning on the perimeter side having a high heat load can be performed without using a fan, and energy saving and equipment cost can be reduced.

  As described above, the ceiling panel for radiant air conditioning and the radiant air conditioning system according to the present invention are useful for enhancing the air conditioning capability of the radiant air conditioning system, and in particular, air-condition the perimeter side having a high heat load without using a fan. Suitable for

2 ceiling 4 inside ceiling 6 indoor 8 perimeter side 9 interior side 10 ceiling panel for radiant air conditioning 12 base member 14 first plate portion 16 second plate portion 18 aluminum fin 20 piping 22 first rib 24 second rib 26 heat transfer portion 28 Ventilation slit 30 Ceiling panel 32 Ventilation hole 34 Aluminum punching ceiling (ceiling panel)
36 Smoke exhaust duct (exhaust means)
38 Ceiling panel 40 Air vent 100 Radiant air conditioning system

Claims (7)

  A ceiling panel for radiant air conditioning provided on the ceiling on the perimeter side, comprising louvered aluminum fins for increasing the panel surface area, and the air conditioning on the perimeter side for radiation and natural convection by the cooling action of the ceiling panel Radiant air conditioning ceiling panel characterized by   The ceiling panel for radiant air conditioning according to claim 1, wherein piping for the refrigerant is provided on the aluminum fin.   The ceiling panel for radiant air conditioning according to claim 1 or 2, wherein a ventilation slit for guiding the air in the ceiling into the room is provided between the louvers of the aluminum fins.   A radiation air conditioning system using the ceiling panel for radiant air conditioning according to any one of claims 1 to 3, wherein the ceiling panel for radiant air conditioning is provided on a perimeter side, and the air conditioning on the perimeter side is used for the radiation air conditioning system. Radiant air-conditioning system characterized by radiation and natural convection due to the cooling effect of the ceiling panel.   The radiant air-conditioning system according to claim 4, wherein the direction of the aluminum fins of the radiant air-conditioning ceiling panel is directed from the perimeter side to the interior side.   6. The radiant air conditioning system according to claim 4, wherein an aluminum ceiling panel having a large number of ventilation holes is provided on the interior side.   The radiant air-conditioning system according to claim 6, further comprising an exhaust unit that guides indoor air from the ventilation hole of the aluminum ceiling panel into the ceiling and exhausts the air outside the room.

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