JP2008002724A - Duct of deformable section and radiation cooling/heating system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a duct of deformable section capable of controlling increase of static pressure while improving workability in a narrow space, and to provide a radiation cooling/heating system utilizing the duct of deformable section. <P>SOLUTION: This duct 50 of deformable section comprises a main body 52 formed by rounding a rectangular sheet member 51, and cylindrically shaping it in a state that opposite edge portions 51a, 51b are overlapped, and a fastening member 55 for fastening an overlapped portion 52w of the edge portions 51a, 51b, the rectangular sheet member 51 is composed of a member keeping elastic deformation when it is deformed to a ratio D1/D2 of 1.1 where a distance between two points free from external force EF is D1, and a distance between two points when the external force EF is added to the main body 52 is D2. The radiation cooling/heating system performs cooling/heating by radiation heat of a sectional face by conveying the air of which a temperature is adjusted, to a back side of the sectional face of a cooling/heating chamber by the duct 50 of deformable section and spraying the air to the sectional face. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a sectional deformable duct and a radiant cooling and heating system, and more particularly to a sectional deformable duct that suppresses an increase in static pressure while improving workability in a narrow space, and a radiant cooling and heating system using the sectional deformable duct.

  In general, a duct used for moving air to a predetermined place is a rectangular duct obtained by processing an iron plate into a rectangular cross section, or a spiral duct obtained by winding a belt-like iron plate into a spiral shape and processing it into a circular cross section. Since these ducts are manufactured in a factory and transported to the site, they are manufactured so robust that the cross-section is not easily deformed.

By the way, in a space where a person is present such as a living room in recent years, there has been a tendency to set the ceiling height higher than before in order to improve comfort. Generally, even if the ceiling height of a living room is set high, the floor height of the structure is rarely increased. The space to lay is often small. When the space behind the ceiling or under the floor is reduced, it is difficult to perform, for example, ceiling or floor finishing work performed after the duct has been laid. As a duct that alleviates such difficulty, there is a nonflammable resin film duct that is crushed into a flat plate shape when laid and swells into a tubular shape when air is fed into the duct (see, for example, Patent Document 1). ).
JP-A-2005-337690

  However, the above-described non-combustible resin film duct has a flat plate-like duct when there is no air supply, so that the duct expands into a tubular shape when air is supplied. Of static pressure is required. For this reason, when using a nonflammable film duct, compared with the case where the duct made with the conventional iron plate is used, the fan which has a static pressure large enough to maintain a tubular shape was required.

  In view of the above problems, an object of the present invention is to provide a cross section deformable duct that suppresses an increase in static pressure while improving workability in a narrow space, and a radiation cooling and heating system using the cross section deformable duct.

  In order to achieve the above object, a duct having a deformable cross section according to the first aspect of the present invention comprises, as shown in FIG. 1, for example, a rectangular sheet-like member 51 rounded and opposed edge portions 51a and 51b overlapped. A main body 52 formed in a cylindrical shape; and a fastening member 55 for fastening the overlapping portion 52w in which the edge portions 51a and 51b are overlapped; a rectangular sheet-like member 51 applies an external force EF to the main body 52 2 when the external force EF is not applied to the distance D2 between two points where the virtual line IL extending in the direction in which the external force EF acts on the cross section perpendicular to the axis of the main body 52 and the cylindrical sheet-like member 51 intersect. When the deformation is performed until the ratio D1 / D2 of the distance D1 between the points becomes 1.1, the deformation is formed of a member that maintains elastic deformation. Here, the “cylindrical shape” includes not only a circular cross section in a direction perpendicular to the axis but also an oval shape depending on the formation state of the overlapping portion.

  If comprised in this way, since the main body when external force is not applied becomes cylindrical, the static pressure for maintaining the duct in a tubular shape (cylindrical shape) during air supply becomes unnecessary, and the increase in static pressure is suppressed. be able to. In addition, when external force is not applied to the distance between two points where an imaginary line extending in the direction in which the external force acts in the cross section perpendicular to the axis when the external force is applied to the main body and the cylindrical sheet-like member intersect When the deformation is performed until the distance ratio between the two points becomes 1.1, the deformation maintains the elastic deformation, so that it can affect other members such as electric wires and joists as obstacles. This reduces the workability in a narrow space.

  In addition, the cross section deformable duct according to the invention described in claim 2 is, for example, as shown in FIG. It is configured to fasten the overlapping portion 52 w and the backing plate 53 with a fastening member 55.

  If comprised in this way, a superposition | polymerization part can be reinforced. Further, it is possible to fasten the overlapping portion using a tapping screw as a fastening member, and in this case, it becomes easy to manufacture a duct having a deformable cross section.

  Further, the cross section deformable duct according to the invention described in claim 3 is a cross section deformable duct 50 according to claim 1 or claim 2, in the cross section deformable duct 50 as shown in FIG. It is a field edge 54 addressed from the outside, and the cross-sectional shape is substantially U-shaped having a bottom side 54b and side sides 54s extending perpendicularly from both ends of the bottom side 54b to both sides 54s. The protrusion 54p protruding in the approaching direction includes a field edge 54 formed at the free end of the side edge 54s; the overlapping portion 52w and the field edge 54 are fastened by a fastening member 55.

  When configured in this manner, the cross-sectional shape is substantially U-shaped having a base and sides extending at right angles to the base from both ends of the base, and protrusions protruding in a direction approaching both sides are formed on the side. Since it has a field edge formed at the free end, it can be easily attached to and detached from the base material using a clip or the like.

  Further, the cross section deformable duct according to the invention described in claim 4 is rectangular in the cross section deformable duct 50 according to any one of claims 1 to 3, for example, referring to FIG. The sheet-like member 51 is made of polyethylene terephthalate resin.

  If comprised in this way, manufacture of a cross-section deformable duct will become easy, and since it will use a material with little toxicity, it will contribute to prevention of global environmental pollution.

  In addition, the radiant cooling / heating system according to the invention described in claim 5 is, for example, as shown in FIG. 4, on the back side BS across the section screen F that divides the cooling / heating space TS to be subjected to at least one of cooling and heating. Temperature-controlled air supply means 20 for supplying temperature-adjusted temperature-controlled air CA; temperature-controlled air blowing member 10 for blowing temperature-controlled air CA supplied to the back side BS so as to come into contact with the section screen F from the back side BS; A cross section deformable duct 50 according to any one of claims 1 to 4; the cross section deformable duct 50 supplies the temperature-controlled air CA supplied to the back side BS to the temperature-controlled air blowing member 10; It is connected to the temperature control air blowing member 10 so as to guide it.

  With this configuration, even when the space on the back side across the section screen is small, the workability when laying a duct having a deformable cross section on the back side across the section screen is improved, so radiation is relatively easy. An air conditioning system can be constructed.

  According to the present invention, when the external force is not applied, the main body has a cylindrical shape, so that no static pressure is required for maintaining the duct in a tubular shape (cylindrical shape) during air supply, and an increase in static pressure is suppressed. be able to. In addition, when external force is not applied to the distance between two points where an imaginary line extending in the direction in which the external force acts in the cross section perpendicular to the axis when the external force is applied to the main body and the cylindrical sheet-like member intersect When the deformation is performed until the distance ratio between the two points becomes 1.1, the deformation maintains the elastic deformation, so that it can affect other members such as electric wires and joists as obstacles. This reduces the workability in a narrow space.

  Embodiments of the present invention will be described below with reference to the drawings. In each drawing, the same or corresponding members are denoted by the same or similar reference numerals, and redundant description is omitted.

  First, referring to FIG. 1, a cross-section deformable duct 50 according to a first embodiment of the present invention will be described. FIG. 1 is a cross-sectional view perpendicular to the axis of a duct 50 having a deformable cross section. The cross section deformable duct 50 is a duct whose cross section is deformed when an external force EF is applied and returns to its original shape when the external force EF is removed. A main body 52 of the duct 50 having a deformable cross section is formed by rounding a sheet-like member 51 which is a rectangular sheet-like member, and overlapping opposing edge portions 51a and 51b to form a cylindrical shape. Here, “cylindrical” has a circular cross section perpendicular to the axis, and, for example, the radius of curvature of the overlapped edges 51a and 51b in the cross section perpendicular to the axis is larger than that of a circle. In addition, an ellipse in which the ratio of the major axis to the minor axis exceeds 1.0 and is 2.0 or less is also included.

  Even when the externally deformable duct EF acts from the outside of the main body 52 and the deformable duct 50 is deformed to the extent described below, it is configured to maintain elastic deformation. Here, the following is considered as preparation for explaining the degree of deformation. An imaginary line IL is drawn in the direction in which the external force EF acts. Intersections between the cylindrical sheet-like member 51 and the virtual line IL are P1 and P2, respectively. The distance between the two points P1 and P2 when the external force EF is not acting is D1, and the distance between the two points P1 and P2 when the external force EF is acting is D2. The section deformable duct 50 is configured to maintain elastic deformation even if it is deformed until the ratio (D1 / D2) of the distance D2 between the two points D1 to the distance D2 between the two points becomes 1.1. The elastic deformation may be maintained even if the deformation is preferably 1.2, more preferably 1.5, and even more preferably 2.0, 3.0, or more. For example, when the shape of the cross section in the direction perpendicular to the axis of the main body 52 is circular and the external force EF acts so that the imaginary line IL passes through the center of this circular shape, the cross section in the direction perpendicular to the axial direction of the main body 52 acts. When deformed, the elastic deformation is maintained even if the ratio is changed until the ratio of the circular distance between the two points to the distance between the two points is at least 1.1. In the following description, it is assumed that the shape of the cross section in the direction perpendicular to the axis of the main body 52 is circular.

  The material of the sheet-like member 51 is typically polyethylene terephthalate resin (hereinafter referred to as “PET resin”). The sheet-like member 51 has a rectangular shape whose short side is typically 1.8 m in length and long side considering the overlap of the edges 51a and 51b on the outer peripheral length of the circular cross section. The edge portions 51a and 51b are edge portions of long sides. The sheet-like member 51 is formed into a cylindrical shape by superposing the edge portion 51 a on one long side of the sheet-like member 51 and the edge portion 51 b on the other long side facing the edge portion 51 a to form a main body 52. The overlapping portion 52w obtained by overlapping the edge portion 51a and the edge portion 51b only needs to have at least a width that can be fastened by the tapping screw 55 as a fastening member. When the thickness of the sheet-like member 51 is about 0.05 mm to 0.15 mm, preferably about 0.08 mm to 0.11 mm, the above-described elastic deformation is maintained even when the circular cross section is deformed due to an external force EF applied. Can do. However, it may have a different thickness as long as it has strength according to the application and can maintain the elastic deformation described above.

  The tapping screw 55 that fastens the overlapping portion 52w is a member that can be fastened without forming a pilot hole in the base material by attaching a blade such as the tip of a drill to the tip of the cross hole screw. When the overlapping portion 52w of the sheet-like member 51 having the material and thickness as described above is fastened with the tapping screw 55, stress may concentrate on the fastening portion and the main body 52 around the fastening portion may be damaged. It is preferable to reinforce the overlapping portion 52w by covering the contact plate 53 from the top. The contact plate 53 is an elongated iron plate having a width that is substantially the same as the long side of the sheet-like member 51 and that can receive the tapping screw 55. The backing plate 53 typically has a thickness of about 0.6 mm to 0.8 mm.

  In order to further reinforce the overlapping portion 52w, a reinforcing member may be applied to the overlapping portion 52w from the outside of the main body 52 and then tightened with a tapping screw 55. The reinforcing member at this time can be a field edge 54 having the following structure. The field edge 54 is a lightweight steel frame widely used as a base material member for a partition (including a ceiling and a floor) in a building. The field edge 54 is a so-called S-bar and has a substantially U-shaped cross section. The substantially U-shape is formed by a bottom side 54b in the cross section and two side sides 54s extending at right angles to the bottom side 54b from both ends of the bottom side 54b. The end of the side 54s that is not in contact with the bottom 54b is referred to as a free end, and the protrusion 54p protrudes from the free end of each side 54s toward the other side 54s. The end of the protrusion 54p opposite to the free end is bent toward the bottom 54b for safety.

If the cross-section deformable duct 50 includes the above-described field edge 54, it can be easily attached to and detached from the W bar or S bar of the base material for board pasting using the clip 58 as described below.
FIG. 2 is a diagram for explaining a state in which the cross-section deformable duct 50 having the field edge 54 is attached to the W bar 59 using the clip 58, and (a) is a cross-sectional view perpendicular to the axis of the cross-section deformable duct 50. (B) is a side view of the duct 50 having a deformable cross section. The clip 58 used when attaching the cross-section deformable duct 50 to the W bar 59 is, for example, as follows.

  3A and 3B are diagrams illustrating the clip 58, where FIG. 3A is a development view and FIG. 3B is a perspective view. The clip 58 is typically formed from a plate-like member 58a in which a rectangular plate-like member as shown in FIG. 3 (a) is cut in the center of one set of opposing sides. The plate-like member 58a is made of a ductile material, typically a thin metal plate or the like. The clip 58 is bent between two bent sides (the portion indicated by the two-dot chain line) by bending the both ends in the same direction at the portion indicated by the two-dot chain line in FIG. As shown in FIG. 3B, a cross section parallel to the side where the notch 58c is made is processed so as to be a shimmering shaved shape.

  Returning again to FIG. The uncurved portions (both ends) of the clip 58 are fitted into the W bar 59, and the head of the shining shaved head is projected from the W bar 59. The head can be easily attached by fitting the recessed portion of the field edge 54 of the duct 50 having a deformable cross section. In the state in which the field edge 54 is fitted to the head of the shimmering shout, the head of the shouting head shouting from the inside of the field edge 54 is pressed so as to swell. The edge 54 does not come off the clip 58. On the contrary, the cross-form deformable duct 50 can be easily removed by applying a force greater than a predetermined pulling force.

  As described above, the section deformable duct 50 can be easily attached to the W bar 59 as a base material used for forming a section screen (ceiling, floor, wall) using the clip 58. Installation of anchors and inserts for mounting can be omitted, and the labor of construction can be reduced.

  In the above description, the sheet-like member 51 is made of a PET resin. However, for example, an iron plate or the like other than the PET resin may be used. For example, when an iron plate is used as the sheet-like member 51 when the fluid flowing in the cross-section deformable duct 50 is hot enough to adversely affect the PET resin (for example, plasticize and deform), it is affected by heat. It is suitable because it is difficult. As described above, the thickness of the sheet-like member 51 that uses an iron plate or the like is an elliptical cross section of the main body 52 (circular distance between two points / distance between two points of the ellipse = 1.1, 1.2, 1). .5, 2.0, 3.0) so long as the elastic deformation can be maintained (for example, 0.05 mm to 0.15 mm, preferably about 0.08 mm to 0.11 mm). The thickness may be different depending on the difference in material (for example, zinc iron plate or stainless steel).

  In the above description, the long side of the sheet-like member 51 is 1.8 m, but other lengths may be used. The duct 50 having a deformable cross section is typically carried into the site after being processed at the factory, but may be processed at the site. In this case, since the thickness of the sheet-like member 51 is relatively thin, the sheet-like member is used. It is possible to easily cut the long side 51 with an arbitrary length.

  In the above description, the contact plate 53 is an iron plate. However, any material other than the iron plate can be used as long as the tapping screw 55 can be firmly fastened. For example, a synthetic resin material may be used. In addition to the tapping screw 55, a rivet or the like may be used as the fastening member.

  In the above description, the reinforcing member addressed to the overlapping portion 52w from the outside of the main body 52 is the field edge 54. However, the overlapping portion 52w may be reinforced from the outside with an iron plate or the like other than the field edge 54, for example. However, it is preferable to use, as the reinforcing member, the field edge 54 in which the protrusion 54p protrudes from the free end toward the other side 54s, so that the clip 58 can be easily attached to and detached from the W bar 59.

  Next, with reference to FIG. 4, the radiation cooling and heating system 1 which concerns on the 2nd Embodiment of this invention is demonstrated. FIG. 4 is a schematic perspective view showing the configuration of the radiant cooling and heating system 1, and a part of the floor F is cut away. The radiant cooling and heating system 1 includes a floor-mounted package 20 as temperature-controlled air supply means, a radiant blower 30 that boosts the temperature-controlled air CA supplied from the floor-mounted package 20, and a radial jet nozzle 10 as a temperature-controlled air blowing member. And the duct 50 having a deformable cross section according to the first embodiment of the present invention for guiding the temperature-controlled air CA discharged from the radiant blower 30 to the radial jet nozzle 10.

  The cooling / heating space TS is a space to be cooled and / or heated by the radiation cooling / heating system 1. The air conditioning space TS is formed by being surrounded by a floor F, a wall, and a ceiling (not shown). Hereinafter, the air conditioning space TS may be referred to as the air conditioning room TS. The floor F, the wall, and the ceiling are section screens that divide the air conditioning room TS. The finished surface of the floor F (the floor surface appearing in the heating / cooling room TS) is provided above the surface of the concrete slab by about 100 mm to 300 mm (typically about 200 mm), and the underfloor space between the floor F and the concrete slab. BS is formed. That is, the underfloor space BS is the back side across the floor F as a section screen. The walls and ceiling are formed by attaching a gypsum board to a lightweight steel frame.

  The floor-standing package 20 has a tube (not shown) and a fan (not shown) inside an outer frame 23 in which a package inlet 21 for taking in air in the air conditioning room TS and a package outlet 22 for blowing out the temperature-controlled air CA are formed. Are shown). The tube is connected to an outdoor unit (not shown). The refrigerant flows through the tube, the refrigerant evaporates in the tube during cooling, and the refrigerant condenses in the tube during heating. The floor-standing package 20 cools the air in the cooling / heating room TS taken into the outer frame 23 by the operation of the fan by cooling the refrigerant by taking latent heat of evaporation from the air during cooling, and by the condensation heat of the refrigerant during heating. warm. The temperature-controlled air CA whose temperature has been adjusted in this way is blown out from the package outlet 22 to the cooling / heating room TS. The fan built in the floor-standing package 20 that blows out the temperature-controlled air CA directly to the air conditioning room TS generally has a low static pressure, and it is difficult to install a duct on the discharge side of the temperature-controlled air CA. The floor-standing package 20 is typically connected to the control device 91 via a signal cable, and is configured to receive a signal from the control device 91 and adjust the temperature of the temperature-controlled air CA. ing.

  The radiant blower 30 is a blower suitable for use in the radiant cooling and heating system 1. The radiant blower 30 includes a rectangular parallelepiped chamber 31 and a straight sirocco fan 33 as a fan for boosting the temperature-controlled air CA. The straight sirocco fan 33 is disposed in the chamber 31. A suction port 35 for taking in the temperature-controlled air CA supplied to the cooling / heating room TS into the chamber 31 is formed on the upper surface of the chamber 31. The suction port 35 is preferably formed flush with the surface of the floor F so as not to disturb the occupants of the air conditioning room TS when the radiant blower 30 is installed in the underfloor space BS. In addition, the suction port 35 is preferably formed in an elongated shape so that the temperature-controlled air CA supplied from the floor-standing package 20 can be taken into the chamber 31 as much as possible. The chamber 31 is provided with a discharge port 34 for discharging the temperature-controlled air CA on the discharge side of the straight sirocco fan 33.

  The radial jet nozzle 10 has an air guide portion 11 formed in a cylindrical shape and a conversion member 12 formed in a cone shape. The conversion member 12 is such that the top of the cone forming the conversion member 12 enters the air guide portion 11 and the bottom surface of the cone is positioned outside the wind guide portion 11, and the conversion member 12. Are attached so that a long and narrow gap (slit) is formed between the side of the cone that forms the frame and the air guide portion. At this time, the top of the cone of the conversion member 12 is preferably located on the axis of the cylinder forming the air guide portion 11. In the radial jet nozzle 10, the temperature-controlled air CA introduced from the air guide unit 11 on the side where the conversion member 12 is not attached flows in the air guide unit 11, contacts the conversion member 12, and the cone of the conversion member 12. It becomes the flow along the side. In other words, the flow direction of the temperature-controlled air CA flowing in the air guide portion 11 is converted by the conversion member 12. The temperature-controlled air CA whose flow direction has been changed is blown out radially from the slit.

  The radiant cooling / heating system 1 is installed in the cooling / heating room TS as follows. The floor-standing package 20 is placed on the floor in a position where the back surface is in contact with one wall of the air conditioning room TS. The floor F at a position as far as possible from the position where the floor-standing package 20 is installed is provided with an air vent (not shown). The radiant blower 30 is installed in the underfloor space BS near the floor-mounted package 20 so that the temperature-controlled air CA supplied from the floor-mounted package 20 can be taken in as much as possible. At this time, the radiant blower 30 is installed so that the surface on which the suction port 35 is formed is flush with the finished surface of the floor F. A duct 50 having a deformable cross section is connected to the discharge port 34 of the radiant blower 30. The connecting portion between the discharge port 34 and the duct having a deformable cross section 50 may be lined with aluminum tape or the like.

  A plurality of radial jet nozzles 10 are arranged at appropriate positions in the underfloor space BS. The appropriate position referred to here is typically on the floor F so that there is radiation from the entire floor F of the air conditioning room TS in consideration of the reach of the temperature-controlled air CA blown out from the radial jet nozzle 10. It is a position where the temperature-controlled air CA can be brought into contact. The radial jet nozzle 10 is installed such that the bottom portion of the conversion member 12 contacts the floor F from the underfloor space BS side. At this time, a mounting piece (not shown) is provided in the air guide portion 11 of the radial jet nozzle 10, and a coil spring or a leaf spring is interposed between the concrete slab or joist and the mounting piece, so that the radial jet nozzle 10 is provided. It is good to always urge in the direction of the floor F. A duct 50 having a deformable cross section is connected to the air guide portion 11 on the side where the conversion member 12 of the radial jet nozzle 10 is not attached. Alternatively, the cross section deformable duct 50 and the radial jet nozzle 10 may be connected using a flexible duct (not shown). In order to branch the cross section deformable duct 50 connected to the discharge port 34 of the radiant blower 30 toward the plurality of radial jet nozzles 10, an air distributor 40 may be provided at the branch portion. The air distributor 40 is typically a chamber, and a guide vane is provided as necessary.

  A control device 91 is attached to one wall of the air conditioning room TS. The control device 91 controls the operation of the radiation cooling / heating system 1. The control device 91 is configured to transmit a signal to the floor-standing package 20 and adjust the temperature of the temperature-controlled air CA blown out from the package outlet 22. Moreover, the control apparatus 91 is comprised so that the flow volume of the temperature control air CA discharged from the discharge port 34 may be adjusted by transmitting a signal to the radiation blower 30, and adjusting the rotational speed of a motor. The control device 91 has an input unit (not shown) for setting the degree of cooling and heating (radiant heat amount). The input unit includes a touch panel and buttons. The radiant cooling and heating system 1 includes a radiation thermometer 92 that measures radiant energy from infrared radiation from the surface of the floor F, and / or a section screen temperature sensor 93 that detects the temperature of the floor F that radiates to the air conditioning room TS. It may be. The radiation thermometer 92 and the section screen temperature sensor 93 are connected to the control device 91 by a signal cable, respectively, and transmit a radiation temperature signal and a section screen temperature signal to the control device 91.

  With continued reference to FIG. 4, the operation of the radiation cooling and heating system 1 will be described. In the following description, the heating / cooling room TS is assumed to be heated. First, the temperature-controlled air CA is supplied from the floor-standing package 20 into the air conditioning room TS. The temperature of the temperature-controlled air CA at this time is approximately 26 to 28 ° C. (preferably 27 ° C.) in the present embodiment. The temperature-controlled air CA supplied into the heating / cooling room TS flows into the section-deformable duct 50 by the operation of the radiation blower 30 and is taken into the underfloor space BS where the section-deformable duct 50 is installed. Become. The temperature-controlled air CA flowing in the section deformable duct 50 is divided into a plurality of section deformable ducts 50 by the air distributor 40, and reaches each radial jet nozzle 10. Thereafter, the temperature-controlled air CA is led out from the slits (not shown) of the respective radial jet nozzles 10 into the underfloor space BS (outside the cross-section deformable duct 50). The temperature-controlled air CA derived into the underfloor space BS is diffused radially along the back surface of the floor F. The temperature-controlled air CA that has come into contact with the floor F transfers heat to the floor F, warms the floor F, and becomes air with a lowered temperature.

  The heated floor F emits radiant heat and warms the air conditioning room TS. That is, the air conditioning room TS is heated by heat radiation from the floor F. Strictly speaking, infrared rays are radiated from the floor F, and the radiated infrared rays heat the occupants in the heating / cooling room TS, and the occupants feel warm. The air whose temperature has been reduced by transferring heat to the floor F moves from the air control opening (not shown) to the air conditioning room TS. A part of the air returned to the air conditioning room TS is discharged out of the air conditioning room TS for ventilation, but the rest flows into the floor-standing package 20 from the package inlet 21 and becomes temperature-controlled air CA again. It is supplied to the air conditioning room TS. As described above, when the air that has transmitted heat to the floor F is returned to the cooling / heating room TS, stagnation of the air in the cooling / heating room TS can be prevented, and energy used for heating is reduced as compared with the case of full ventilation. can do.

  Although the example of heating was demonstrated above, the air conditioning room TS can also be cooled by the radiation cooling / heating system 1. FIG. In the case of cooling, the floor F is cooled, and cold radiation (the floor F absorbs heat when the floor F (division screen) is at a lower temperature than in the air conditioning room TS) is performed. When cooling is performed in the present embodiment, the temperature of the temperature-controlled air CA supplied into the cooling / heating room TS is about 20 to 22 ° C. (preferably 21 ° C.). In the case of cooling, the amount of energy consumption can be smaller than that of cold / hot air conditioning (the temperature of blown air is about 15 ° C.).

  In the above description, the temperature-controlled air supply means is described as the floor-mounted package 20, but it may be a wall-mounted or ceiling-mounted package, a fan coil, a fan heater, or the like, or the temperature is adjusted by an air handling unit or the like. What is necessary is just to be able to supply temperature-controlled air CA to the air conditioning room TS, such as a blower outlet connected to a duct for guiding the air to the air conditioning room TS or a so-called room air conditioner. Moreover, although the temperature-controlled air supply means supplies the temperature-controlled air CA to the cooling / heating room TS, it may be supplied to the radiant blower 30 without going through the cooling / heating room TS. In such a case, for example, the floor-standing package 20 may be arranged so that the package outlet 22 is located in the underfloor space BS.

  In the above description, the blower used in the radiant cooling and heating system 1 has been described as the radiant blower 30, but a general-purpose blower may be used. For example, by installing a general-purpose straight sirocco fan in the underfloor space BS, installing an air vent to be a suction port on the floor, and connecting the individually installed straight sirocco fan and the air vent with a flexible duct You may make it guide the temperature control air CA supplied to the air conditioning room TS to the underfloor space BS.

  In the above description, the temperature control air blowing member has been described as the radial jet nozzle 10, but the conversion member 12 of the radial jet nozzle 10 is formed in an elongated shape so as to diffuse the temperature control air CA linearly. Even if the blowing member or the blowing member that simply brings the temperature-controlled air CA into contact with the floor F from the underfloor space BS without providing the diffusing member, heat is applied to the floor F (zone screen) to such an extent that the cooling / heating room TS can be radiantly cooled / heated. It only needs to be able to communicate. However, if the temperature-controlled air CA is a blowing member having a diffusion member that diffuses along the floor F (section screen), like the radial jet nozzle 10, the temperature-controlled air CA and the floor F (section screen) are spread over a wide range. It can be contacted, and heat transfer is performed efficiently, which is preferable.

  In the above description, the temperature-controlled air CA is brought into contact with the floor F, and the air conditioning room TS is heated and cooled by the radiant heat from the floor F. Air-conditioning may be performed, and the air-conditioning room TS may be air-conditioned by radiant heat from a plurality of section screens by arbitrarily combining radiation surfaces from the floor F, ceiling, and wall.

It is an axial perpendicular direction sectional view of the section changeable duct concerning a 1st embodiment of the present invention. It is a figure explaining a mode that the cross-section deformable duct was attached to the base material. (A) is a cross-sectional view perpendicular to the axis of the duct having a deformable cross section, and (b) is a side view of the duct having a deformable cross section. It is a figure explaining the clip for attaching a cross-section deformable duct to a base material. (A) is a development view, (b) is a perspective view. It is a typical perspective view which shows the structure of the radiation cooling / heating system 1 which concerns on the 2nd Embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Radiant cooling and heating system 10 Temperature control air blowing member 20 Temperature control air supply means 50 Cross section deformable duct 51 Rectangular sheet-like member 51a, 51b Edge 52 Main body 52w Superposition part 53 Baking plate 54b Bottom 54s Side 54p Projection 54 Field Edge 55 Fastening member CA Temperature control air BS Back side F Section screen TS Air conditioning space D1, D2 Distance between two points EF External force IL Virtual line

Claims (5)

A body formed by rounding a rectangular sheet-like member and overlapping opposing edges to form a cylinder;
A fastening member for fastening the overlapped portion where the edges are overlapped;
When the rectangular sheet-like member applies an external force to the main body, an imaginary line extending in a direction in which the external force acts in the cross section perpendicular to the axis of the main body intersects the cylindrical sheet-like member. The deformation is formed by a member that maintains elastic deformation when deformed until the ratio of the distance between the two points when the external force is not applied to the distance between the two points is 1.1;
Cross section deformable duct. A patch plate that is attached to the overlapping portion from the inside of the cylindrical shape;
Configured to fasten the overlapping portion and the backing plate with the fastening member;
The duct having a deformable cross section according to claim 1. The superficial portion is a field edge addressed from the outside of the cylindrical shape, and the cross-sectional shape is substantially U-shaped with a bottom side and sides extending at right angles to the bottom side from both ends of the bottom side, A protrusion that protrudes in a direction approaching the sides is formed at a free edge of the side;
Configured to fasten the overlapping portion and the field edge with the fastening member;
The cross-section deformable duct according to claim 1 or 2. The rectangular sheet-like member was formed of polyethylene terephthalate resin;
The duct having a deformable cross section according to any one of claims 1 to 3. Temperature-controlled air supply means for supplying temperature-controlled air whose temperature has been adjusted to the back side across the section screen that partitions the air-conditioning space to be subjected to at least one of cooling and heating;
A temperature-controlled air blowing member that blows out the temperature-controlled air supplied to the back side so as to come into contact with the section screen from the back side;
A cross-section deformable duct according to any one of claims 1 to 4;
The duct having a deformable cross section is configured to be connected to the temperature-controlled air blowing member so as to guide the temperature-controlled air supplied to the back side to the temperature-controlled air blowing member;
Radiant air conditioning system.

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