JP2021162269A - Underfloor set and radiation heating and cooling system - Google Patents

Abstract

To provide an underfloor set capable of being simply transported and appropriate for heat radiation, and a radiation heating and cooling system using the same.SOLUTION: An underfloor set 10 comprises a guide plate 11 for guiding a gas in a flow direction X, and inner partition plates 13 for partitioning a ventilation space 12 within the guide plate 11 into first and second ventilation spaces 10s and 10r. The guide plate 11 has a top surface 11t that is extended in the flow direction X, and a pair of side surfaces 11s. The pair of side surfaces 11s is extended at an angle with respect to the top surface 11t. The plurality of inner partition plates 13 is formed so that vent holes 13h for communicating the first and second ventilation spaces 10s and 10r with each other can be arranged in the flow direction X, and arranged to move the gas, which is moved to the second ventilation space 10r through the vent hole 13h from the first ventilation space 10s, in a direction crossing the flow direction X, along the top surface 11t. A radiation heating and cooling system, in which the plurality of underfloor sets 10 is arranged, comprises temperature regulation equipment for regulating a temperature of the gas supplied to each of the underfloor sets 10.SELECTED DRAWING: Figure 2

Description

The present invention relates to a floor base set and a radiant air-conditioning system, and more particularly to a floor base set and a radiant air-conditioning system that are easy to transport and suitable for radiant air-conditioning.

As a solution to the inconvenience of temperature unevenness in convection type heating and cooling that supplies air whose temperature has been adjusted to the space to be heated and cooled, there is a technique of performing heating and cooling by heat radiation. A groove-shaped gas flow path that is provided with a block body made of concrete whose basic shape is a three-dimensional structure having a front surface and a back surface, and is capable of flowing a predetermined flow rate of gas, is used when performing heating and cooling by heat radiation. Is provided on the back surface side, and is provided with a flow path separator that divides the gas flow path into an air supply flow path on the back surface side and a return air flow path that does not face the back surface, and the flow path separator is from the air supply flow path to the return air flow path. There is a thermal radiation block in which a communication hole through which gas can move is formed (see, for example, Patent Document 1).

Japanese Unexamined Patent Publication No. 2015-222154

However, since the block body of the heat radiation block described in Patent Document 1 is made of concrete, the weight and volume tend to be large, and it is difficult to transport the block.

In view of the above problems, it is an object of the present invention to provide a floor base set suitable for radiant air conditioning and heating, which is easy to transport, and a radiant air conditioning system using the same.

In order to achieve the above object, the floor base set according to the first aspect of the present invention is, for example, as shown in FIG. 2, a guide plate 11 for guiding the gas in the flow direction X, and is along the flow direction X. It has a top surface 11t and a pair of side surfaces 11s, and the pair of side surfaces 11s are connected to the top surface 11t so as to extend at an angle to the same side with respect to the top surface 11t with the top surface 11t in between. A guide plate 11 that forms a ventilation space 12 through which gas flows inside the 11t and the pair of side surfaces 11s; a first ventilation space 10s that extends along the flow direction X and makes the ventilation space 12 far from the top surface 11t. A partition plate 13 for partitioning the space and the second ventilation space 10r on the side close to the top surface 11t, and the ventilation holes 13h connecting the first ventilation space 10s and the second ventilation space 10r are in the flow direction X. A plurality of gases formed side by side and moved from the first ventilation space 10s through the ventilation holes 13h to the second ventilation space 10r are moved along the top surface 11t in a direction intersecting the flow direction X. It is provided with a partition plate 13 arranged in.

With this configuration, the airflow flow path can be formed by a member having a structure that can be easily transported.

Further, the floor base set according to the second aspect of the present invention is, for example, as shown in FIG. 5, in the floor base set 10A according to the first aspect of the present invention, the top surface 11t of the second ventilation space 10r. A guide blade 15 provided near the boundary between the top surface 11t and the side surface 11s, and a gap forming plate forming an outer peripheral gap 10re through which gas passes between the top surface 11t and the portion where the side surface 11s is connected in the flow direction X. A guide blade 15 having a 15r and a guide piece 15p for guiding the gas flowing into the outer peripheral gap 10re in a direction intersecting the flow direction X is provided.

With this configuration, it is possible to suppress the expansion of the gas flowing in the direction intersecting the flow direction in the second ventilation space, and it is possible to suppress the decrease in the heat transfer efficiency from the gas to the guide plate. ..

Further, in the floor base set according to the third aspect of the present invention, for example, as shown in FIG. 6, in the floor base set 10B according to the first aspect of the present invention, the guide plate 11B is formed from the top surface 11t to the third. The intersecting fins 17 protruding into the ventilation space 10r of 2 and extending in the direction intersecting the flow direction X with a first predetermined length, and the intersecting fins 17 protruding from the side surface 11s into the second ventilation space 10r. It has a parallel fin 18 which is a parallel fin 18 extending at a second predetermined length along the flow direction X.

With this configuration, the intersecting fins can function as interrupt fins and the parallel fins can function as turbulence promoters, and the heat transfer from the gas to the guide plate can be improved.

Further, the radiant heating / cooling system according to the fourth aspect of the present invention is, for example, as shown in FIGS. 1 and 2, the floor base according to any one of the first to third aspects of the present invention. A floor base unit 10c configured by arranging a plurality of floor base rows 10f configured so that the set 10 has a third predetermined length in the flow direction X in a direction Y intersecting the flow direction X. A main air flow path 31 through which a gas A supplied to the first ventilation space 10s flows through one end of each of the plurality of floor base rows 10f; and one end of each of the plurality of floor base rows 10f. With the main return air flow path 32 through which the gas A collected from the second ventilation space 10r flows through the other end on the opposite side; with the floor construction layer 28 formed on the outer upper surface of the floor base unit 10c; A temperature control device 40 for adjusting the temperature of the gas A supplied to the air supply flow path 31 is provided.

With this configuration, the heat of the gas whose temperature has been adjusted can be transferred to the floor construction layer via the guide plate, and the space above the floor construction layer can be cooled and heated by heat radiation from the floor construction layer.

Further, the radiant cooling / heating system according to the fifth aspect of the present invention is, for example, as shown in FIGS. 1 and 4, in the radiant cooling / heating system 1 according to the fourth aspect of the present invention, the main air flow path 31 and the main air flow path 31 and the main. At least one of the return air flow paths 32 is formed of a guide plate 11.

With this configuration, at least some parts can be shared between the floor base set and the main air flow path and / or the main return air flow path, and the production efficiency of the radiant cooling / heating system can be improved. can.

According to the present invention, the ventilation flow path can be formed by a member having a structure that can be easily transported.

It is a system diagram which shows the schematic structure of the radiant air-conditioning system which concerns on embodiment of this invention. It is a figure which shows the floor base set which concerns on embodiment of this invention. FIG. It is a perspective view of a partition plate. It is a member attached to the floor base, (A) is a perspective view of a connecting clip, (B) is a perspective view of a return air end cap, (C) is a perspective view of an air supply end cap, and (D) is a blockage. It is a perspective view of a cap. It is a perspective view which shows the construction procedure of the floor base. It is a figure which shows the floor base set which concerns on the modification of embodiment of this invention, (A) is the perspective view, (B) is the front perspective view of the guide plate and guide vane which make up the floor base set, (C). Is a perspective view of the guide blades constituting the floor base set. It is a figure which shows the floor base set which concerns on another modification of embodiment of this invention, (A) is the perspective view, (B) is the perspective view of the guide plate which constitutes the floor base set.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. In each figure, members that are the same as or correspond to each other are designated by the same or similar reference numerals, and duplicate description will be omitted.

First, the radiant cooling / heating system 1 according to the embodiment of the present invention will be described with reference to FIG. FIG. 1 is a system diagram showing a schematic configuration of a radiant cooling / heating system 1. The radiant cooling / heating system 1 includes a plurality of floor base sets 10 according to the embodiment of the present invention. The radiant cooling / heating system 1 further includes an air conditioner as a temperature control device that regulates the temperature of the main air supply pipe 31 that constitutes the main air supply flow path, the main return air pipe 32 that constitutes the main return air flow path, and the air A as a gas. It is equipped with a machine 40. In the present embodiment, the radiant air-conditioning system 1 is a set of a plurality of floor bases spread on the floor surface that partitions a space (typically, a room to be air-conditioned) that is the target of cooling or heating (hereinafter referred to as “air-conditioning”). This is a system in which the cold heat or hot heat possessed by the air A is transmitted to the floor base set 10 and the floor construction layer constructed on the floor construction layer 10, and the air conditioning target space is cooled and heated by the radiant heat of the floor base set 10 and the floor construction layer.

Here, the configuration of the floor base set 10 will be described with reference to FIG. FIG. 2A is a perspective view of the floor base set 10, FIG. 2B is a perspective view of the guide plate 11 constituting the floor base set 10, and FIG. 2C is a partition plate constituting the floor base set 10. 13 is a perspective view of 13. As shown in FIG. 2A, the floor base set 10 includes a guide plate 11 and a partition plate 13.

The guide plate 11 is a member that forms an air flow path 12 as a ventilation space through which air A passes by bending a plate-shaped member by press working or the like. In the present embodiment, the guide plate 11 has a cross-sectional shape similar to that of channel steel, with both ends of a rectangular plate-shaped member bent in the same direction. The guide plate 11 has a pair of side surfaces 11s which are both ends of a plate-shaped member bent in the same direction, and a top surface 11t sandwiched between the pair of side surfaces 11s. The top surface 11t and each side surface 11s are typically formed in a plane, but may be curved as long as the function is not impaired. The angle formed by the top surface 11t and each side surface 11s is preferably 90 ° to 100 °, more preferably 93 ° to 97 °, and typically 95 °. If the distance between the pair of side surfaces 11s increases as the distance from the top surface 11t increases, the guide plates 11 can be efficiently transported without being bulky by overlapping when transporting the plurality of guide plates 11. The angle formed by the top surface 11t and each side surface 11s is typically the same angle, but may be different angles. The boundary portion between the top surface 11t and each side surface 11s is typically a curved surface so that stress concentration can be relaxed. In the present embodiment, the flange 11f is connected to each side surface 11s on the side facing the side to which the top surface 11t is connected. The flange 11f extends toward the outside (the side away from the opposing side surfaces 11s), and the tip portion 11fe extending outward slightly extends vertically upward. In the present embodiment, the guide plate 11 has an opening on the surface facing the top surface 11t. The opening surface facing the top surface 11t is on the same plane as the pair of flanges 11f (excluding the tip portion 11fe). Further, in the present embodiment, the top surface 11t and the pair of surfaces orthogonal to the pair of side surfaces 11s are also openings. The guide plate 11 is placed so that the pair of flanges 11f are in contact with the floor surface of the building (not shown), so that there is a gap between the top surface 11t and the floor surface of the building, and the guide plate 11 is paired with the top surface 11t. The air flow path 12 is formed in the inside (inside of the guide plate 11) surrounded by the side surface 11s of the building and the floor surface of the building. As a whole, the air flow path 12 allows air A to flow in the direction in which the boundary between the top surface 11t and the side surface 11s extends. The direction in which the air A flows is referred to as the flow direction X, and the direction orthogonal to the flow direction X (in the present embodiment and parallel to the top surface 11t) is referred to as the orthogonal direction Y. The orthogonal direction Y is an aspect of a direction intersecting the flow direction X. The guide plate 11 has a top surface 11t, a pair of side surfaces 11s, and a flange 11f extending along the flow direction X. The guide plate 11 is typically made of metal, but may be made of a material other than metal (for example, synthetic resin). The guide plate 11 has, for example, a length (distance in the flow direction X) of 700 to 1000 mm (for example, 900 mm), a width (distance parallel to the top surface 11t in the orthogonal direction Y) of 500 to 700 mm (for example, 600 mm), and a height. Is formed to be 80 to 120 mm (for example, 100 mm), but may be formed to any other suitable length.

The partition plate 13 is a member that partitions the air flow path 12 into an air supply flow path 10s and a return air flow path 10r. The partition plate 13 has an appearance like the roof of a row house, in which a rectangular plate-shaped member is bent by press working or the like along a line connecting the midpoints of a pair of opposing sides. In the present embodiment, the partition plate 13 forms a top surface 13t in which the bent line of the rectangular plate-shaped member has a width in the orthogonal direction Y. Slopes 13s are formed on both sides in the direction Y orthogonal to the top surface 13t. An end portion 13e is formed on a side of each slope 13s facing the side connected to the top surface 13t. The pair of end portions 13e typically exist on the same plane parallel to the top surface 13t. When the floor base set 10 is formed by combining the partition plate 13 with the guide plate 11, the top surface 13t is in contact with the top surface 11t, and the end portion 13e is in contact with the tip end portion 11f of the flange 11f. ing. As a result, in the floor base set 10, a pair of return air flow paths 10r are formed between the pair of slopes 13s and the guide plate 11, and the air supply flow paths 10s are formed inside the pair of slopes 13s. The air supply flow path 10s is formed at a position farther from the top surface 11t than the return air flow path 10r. Therefore, the air supply flow path 10s corresponds to the first ventilation space, and the return air flow path 10r corresponds to the second ventilation space. The partition plate 13 is configured to be easily attached to and detached from the guide plate 11, and only ends 13e are sandwiched between the tip 11fe of the pair of flanges 11f of the guide plate 11 and the floor surface of the building. It may be positioned with. The partition plate 13 is formed to have the same length, width, and height as the guide plate 11. The same degree here means that when the partition plate 13 is combined with the guide plate 11, one air supply flow path 10s and two return air flow paths 10r can be appropriately formed in the present embodiment. Degree. In the partition plate 13, vent holes 13h are formed on each of the pair of slopes 13s. The ventilation holes 13h are formed in a slit shape (elongated rectangular shape) in the present embodiment. A plurality of ventilation holes 13h formed on each slope 13s are arranged in a row in the vicinity of the top surface 13t in a direction in which slits extend in the flow direction X. By forming the ventilation holes 13h in the partition plate 13, air A (see FIG. 1) can flow between the air supply flow path 10s and the return air flow path 10r. Each ventilation hole 13h is preferably formed so as to allow the passing air A to flow into the return air flow path 10r in a jet state. For example, the shape and size of the ventilation hole 13h may be determined so that the air A passes through the ventilation hole 13h at a flow velocity of 3 m / s to 5 m / s. Although it depends on the flow rate of the air A, each ventilation hole 13h may be a rectangle of, for example, 30 to 50 mm × 3 to 5 mm (typically 40 mm × 4 mm), and this dimension is the partition plate 13 (and thus the floor base set). It can be appropriately changed according to the length of the flow direction X in 10).

The configuration of the radiant cooling / heating system 1 will be described again mainly with reference to FIG. In the radiant air-conditioning system 1, a plurality of floor base sets 10 are spread on the floor surface (not shown) of the building. In the laying mode of the floor base set 10, first, a plurality of floor base sets 10 are placed in a row in the flow direction X without gaps while the end portions 13e of the partition plate 13 are placed so as to be in contact with the floor surface of the building. Then, by setting the length to a third predetermined length, one floor base row 10f is formed. The third predetermined length is the length of one side in the flow direction X of the floor surface on which heat radiation is performed. In the floor base row 10f, the air supply flow paths 10s and the return air flow paths 10r of each floor base set 10 are in contact with each other. By arranging a plurality of rows of floor base rows 10f configured in this way in the orthogonal direction Y, a large number of floor base sets 10 are spread (hereinafter referred to as "floor base unit 10c"). The rows 10f can be connected by abutting the flanges 11f and sandwiching the adjacent tip portions 11fe in contact with the connecting clip 23 (see FIG. 3A). By arranging the plurality of floor base rows 10f, a plurality of air flow paths 12 (air supply flow path 10s and return air flow path 10r) are formed. The floor base unit 10c is formed in a rectangular shape as a whole in a plan view. The floor base unit 10c has an opening of an air flow path 12 corresponding to the number of floor base rows 10f on each side surface connected from a pair of opposite sides of the four rectangular sides in a plan view. Of the pair of side surfaces of the floor base unit 10c in which the openings of the plurality of air flow paths 12 appear, in the openings of the air flow paths 12 appearing on one side surface, the opening of the return air flow path 10r is the return air end cap 21 ( (See FIG. 3 (B)), and in the opening of each air flow path 12 appearing on the other side surface, the opening of the air flow path 10s is the air supply end cap 22 (see FIG. 3 (C)). It is blocked. The main air supply pipe 31 is connected to the side surface of the floor base unit 10c to which the return air end cap 21 is attached, and the main return air pipe 32 is connected to the side surface of the floor base unit 10c to which the air supply end cap 22 is attached. Is connected.

The main air supply tube 31 extends in the orthogonal direction Y. In the present embodiment, the main air supply pipe 31 is configured by using the guide plate 11 (see FIG. 2B) as follows. That is, the main air supply pipe 31 arranges the guide plates 11 in a row so as to be orthogonal to and upside down with respect to the arrangement of the guide plates 11 of the floor base set 10 constituting the floor base unit 10c. By doing so, the lower half is formed. At this time, the positional relationship of the lower half of the main air supply pipe 31 in the height direction is such that the guide plate 11 constituting the lower half of the main air supply pipe 31 is placed on the floor surface of the building with its top surface 11t. This is a positional relationship in the height direction in which the end portion 13e of the partition plate 13 constituting the floor base unit 10c is placed on one of the flanges 11f when arranged. In order to make such an arrangement, the floor surface of the building is one step lower than the portion where the floor base unit 10c is arranged in the portion where the lower half of the main air supply pipe 31 is arranged. On the lower half of the main air supply pipe 31, the guide plate 11 is placed so as to be continuous with each floor base row 10f constituting the floor base unit 10c, so that the upper half of the main air supply pipe 31 is formed. There is. Each guide plate 11 constituting the upper half of the main air supply pipe 31 is arranged so that the flange 11f is in contact with the guide plate 11. That is, in the main air supply pipe 31, each guide plate 11 forming the upper half is orthogonal to the guide plate 11 forming the lower half in the opposite direction. Each guide plate 11 constituting the upper half of the main air supply pipe 31 has an end opposite to the end connected to the floor base row 10f closed with a closing cap 25 (see FIG. 3D). ing. With this configuration, the main trachea 31 is an underdrain. The main return trachea 32 is configured in the same manner as the main trachea 31 described above. In the main air supply pipe 31, one end of the floor base unit 10c in the orthogonal direction Y is closed with a closing cap 25. In the main return air tube 32, the end of the floor base unit 10c in the orthogonal direction Y opposite to the end of the main air supply tube 31 that is closed by the closing cap 25 is closed by the closing cap 25. ..

With reference to FIG. 4, the procedure for constructing the above-mentioned floor base unit 10c, the main insufflation pipe 31, and the main return air pipe 32 (hereinafter, these may be collectively referred to as “floor base”) will be described. In the present embodiment, first, as shown in FIG. 4A, the lower halves of each of the main insufflation tube 31 and the main return insufflation tube 32 are arranged. At this time, in the present embodiment, as described above, the guide plate 11 is used and placed on the floor with the top surface 11t of the guide plate 11 facing down, and the main air supply tube 31 and the main return air tube 32 are arranged. Are arranged in parallel with a third predetermined distance apart. Next, as shown in FIG. 4 (B), the partition plate 13 is arranged between the arranged main air supply tube 31 and the main return air tube 32. The partition plates 13 are arranged by the number of floor base rows 10f required for the configuration of the floor base unit 10c to be constructed. The partition plates 13 are placed so that the pair of end portions 13e are in contact with the floor surface, and are arranged so as to extend in a direction orthogonal to the extending direction of the main air supply pipe 31 and the main return air pipe 32. Next, as shown in FIG. 4C, a pair of flanges 11f of the guide plate 11 are placed on the pair of end portions 13e of each of the arranged partition plates 13, and the respective partition plates are placed. The guide plate 11 is attached to 13. By attaching the guide plate 11 to the partition plate 13, the floor base set 10 is formed, and by performing this sequentially, the floor base row 10f is formed, and further, a plurality of floor base rows 10f are formed in the orthogonal direction Y. Will be the floor base unit 10c. After the guide plate 11 is attached to the partition plate 13, the tip portion 11fe of the butted flange 11f of the adjacent floor base rows 10f is fixed by the connecting clip 23. Further, the opening of the return air flow path 10r facing the main air supply pipe 31 is closed with the return air end cap 21, and the opening of the air supply flow path 10s facing the main return air pipe 32 is closed with the air supply end cap 22. As a result, in each floor base row 10f, each air supply flow path 10s communicates with the main air supply pipe 31, and each return air flow path 10r communicates with the main return air pipe 32. Next, as shown in FIG. 4 (D), the upper halves of each of the main insufflation tube 31 and the main return insufflation tube 32 are arranged. At this time, in the present embodiment, as described above, the guide plate 11 is used to arrange the guide plate 11 so that the top and bottom are orthogonal to the guide plate 11 constituting the lower half. ing. The guide plates 11 forming the upper halves of the main air supply pipe 31 and the main return air pipe 32 are arranged in the same row following the floor base row 10f. In FIG. 1, for convenience, the plan view of the main air supply pipe 31 and the main return air pipe 32 is not represented by the guide plate 11 continuous from the floor base row 10f, but is continuous in the direction orthogonal to the floor base row 10f. It is expressed as. After that, the opening of the guide plate 11 forming the upper half, which appears on the side surface (the surface along the longitudinal direction) opposite to the floor base unit 10c of each of the main air supply pipe 31 and the main return air pipe 32, is closed and the cap 25 is closed. Close with. Further, the opening of the guide plate 11 forming the lower half appearing at the end of one end of the main insufflation tube 31 in the longitudinal direction is closed with a cap 25, and the end of the other end in the longitudinal direction of the main return trachea 32 is reached. The opening of the guide plate 11 constituting the lower half that appears is closed and the cap 25 is closed. In this way, the floor base is constructed. Since there are two types of members used for the floor base constructed here, the guide plate 11 and the partition plate 13, it is possible to standardize the members and improve the manufacturing efficiency. Further, since the guide plate 11 and the partition plate 13 can be transported in layers, the transportation efficiency can be improved.

In the radiant air-conditioning system 1, concrete is cast on-site on the floor base configured as described above to form a concrete layer 28 (partially shown in FIG. 1). In this way, the floor base can be laid and concrete can be poured directly onto it, and serves as a deck plate. The concrete layer 28 corresponds to the floor construction layer. Reinforcing bars may be arranged in the concrete layer 28 according to the required load. As the floor constituent layer, instead of the concrete layer 28, a layer in which sand and / or dry soil is put and plywood is laid may be formed, or a layer in which sand is put and artificial turf is laid. May be constructed, and an appropriate layer may be constructed in addition to this.

The description of the configuration of the radiant cooling / heating system 1 will be continued mainly with reference to FIG. The air conditioner 40 has a coil 41 and a fan 42. The coil 41 cools or heats the air A introduced into the air conditioner 40. The coil 41 has a tube through which cold water or hot water whose temperature has been adjusted by a heat source machine (not shown) flows. The tube of the coil 41 is provided with a large number of fins. The coil 41 is configured to transfer the heat of cold water or hot water to air A by passing air A between a large number of fins and exchanging heat between cold water or hot water and air A. .. The fan 42 pumps the air A whose temperature is controlled by the coil 41 toward the floor base unit 10c. It is sufficient that the air conditioner 40 can adjust the temperature of the air A, and does not have to have a configuration for adjusting the humidity of the air A. However, if the moisture contained in the air A supplied from the air conditioner 40 may condense, the air conditioner 40 has a configuration for adjusting the humidity of the air A in order to prevent dew condensation. Is preferable. The discharge side of the air conditioner 40 and the end of the main air supply pipe 31 (the end opposite to the end closed by the closing cap 25) are connected by an air outflow pipe 35. The introduction side of the air conditioner 40 and the end of the main return air pipe 32 (the end opposite to the end closed by the closing cap 25) are connected by an air return pipe 34. The end of the main air supply pipe 31 to which the air outflow pipe 35 is connected and the end of the main return air pipe 32 to which the air return pipe 34 is connected are diagonal to the floor base unit 10c formed in a rectangular shape as a whole. It is configured to be located.

Subsequently, the operation of the radiant cooling / heating system 1 will be described with reference to FIGS. 1 to 4. The operation of the floor base set 10 will be described as part of the operation of the radiant cooling / heating system 1. When operating the radiant cooling / heating system 1, first, the air conditioner 40 is started. Then, the air A is introduced into the air conditioner 40. When the air A introduced into the air conditioner 40 passes through the coil 41, it is cooled during cooling and warmed during heating. The air A whose temperature has been adjusted through the coil 41 is discharged from the air conditioner 40 by the fan 42. The air A discharged from the air conditioner 40 flows into the main air supply pipe 31 after flowing through the air outflow pipe 35. The air A that has flowed into the main air supply pipe 31 flows toward the end on the side opposite to the side to which the air outflow pipe 35 is connected. The air A flowing in the main air supply pipe 31 flows into the air supply flow path 10s of the floor base row 10f that meets the floor base row 10f each time.

The air A that has flowed from the main air supply pipe 31 into the air supply flow path 10s of each floor base row 10f flows toward the end on the side to which the main return air pipe 32 is connected. Then, each time the air A flowing through the air supply flow path 10s encounters the ventilation hole 13h (see FIG. 2), the air A passes through the encounter ventilation hole 13h and flows into the return air flow path 10r. At this time, the air A that has passed through the ventilation hole 13h flows into the return air flow path 10r in a jet state, collides with the top surface 11t of the guide plate 11, and then flows along the top surface 11t, and becomes a flow along the top surface 11t. It flows from the side surface 11s along the inner surface in a direction intersecting the flow direction X. The air A that has flowed into the return air flow path 10r flows along the inner surface from the top surface 11t to the side surface 11s by a jet, so that a boundary film existing along the inner surface of the guide plate 11 at the portion in contact with the return air flow path 10r is formed. It is destroyed and the cold or hot heat possessed by the air A is efficiently transmitted to the guide plate 11 and eventually to the concrete layer 28. Further, the air A in the return air flow path 10r flows toward the main return air pipe 32 in a turbulent flow, thereby promoting heat transfer from the air A to the guide plate 11 and the concrete layer 28 as compared with the case where the air A flows in a laminar flow. Can be done. The guide plate 11 (floor base set 10) and the concrete layer 28 are cooled during cooling and warmed during heating.

The concrete layer 28, which has been cooled or warmed via the guide plate 11 by heat transfer from the air A, radiates cold heat or heat from the surface to cool or heat the space facing the surface of the concrete layer 28. At the time of cooling, the heat of the object existing in the cooling target space is absorbed by the concrete layer 28 to obtain a feeling of coolness. However, in the present specification, for convenience, the cold heat is radiated from the concrete layer 28. It is expressed as. In the radiant heating / cooling system 1, since the heat medium for cooling or heating the guide plate 11 and the concrete layer 28 is air A, dew condensation occurs as compared with the case where cold water or hot water flowing in a pipe embedded in concrete is used as a heat medium. Occurrence can be suppressed and water leakage can be avoided. If radiant cooling is performed using a heat medium as cold water, the temperature of the cold water may be set to 23 ° C or higher (higher than the dew point) in order to prevent dew condensation on the radiant surface such as the floor surface, but the temperature is constant at 23 ° C. When cold water is flowed, it becomes difficult to quickly follow the fluctuation of the load.

Further, in the radiant air-conditioning system 1, the concrete layer 28 configured on the floor base set 10 and the floor base set 10 is cooled or heated, and the cooling or heating is performed by heat radiation from the cooled or heated concrete layer 28. Even in the space, it is possible to realize stratified air conditioning that controls the temperature of the work area up to about 3 m above the floor. If convection air conditioning is performed to supply temperature-controlled air to the air-conditioning target space, high-temperature air tends to convection in the upper part, making it difficult to effectively heat the work area, but radiation. In the air-conditioning system 1, the air-conditioning of the work area can be effectively performed. Further, in the radiant cooling / heating system 1, when the concrete layer 28 is cooled or heated to perform radiant cooling / heating, the concrete has a relatively large heat capacity, so that heat can be stored in the concrete layer 28. Therefore, when the supply of the temperature-controlled air A to the air flow path 12 is temporarily interrupted, and then the temperature-controlled air A is supplied to the air flow path 12 and the cooling / heating is restarted, the air conditioner before the interruption is resumed. Since the cold or hot heat is retained in the concrete layer 28, the start-up of air conditioning is accelerated. Therefore, the radiant cooling / heating system 1 has a greater energy saving effect than the convection type air conditioning in which the heat transferred to the air is lost due to the interruption. Further, the air conditioner 40 can be operated by utilizing the midnight electric power effective for electric power leveling, and the cold or hot heat stored in the concrete layer 28 at midnight can be radiated from the surface during the daytime to perform heating and cooling.

The air A that has flowed into the return air flow path 10r flows from the top surface 11t of the guide plate 11 to the side surface 11s along the inner surface thereof, and then flows through the return air flow path 10r toward the main return air passage 32, and then flows through the return air flow path 10r. Inflow to. The air A that has flowed into the main return air pipe 32 flows through the main return air pipe 32 toward the air return pipe 34. At this time, since the end of the main return pipe 32 to which the air return pipe 34 is connected is located diagonally to the end of the main air supply pipe 31 to which the air outflow pipe 35 is connected, each floor base. The distance traveled by the air A flowing through the row 10f from the air outflow pipe 35 to the air return pipe 34 becomes approximately equal (reverse retan method), and the entire floor base unit 10c and the concrete layer 28 can be cooled or heated evenly. can. The air A that has flowed through the main return pipe 32 and has flowed into the air return pipe 34 flows through the air return pipe 34 and is introduced into the air conditioner 40. The air A introduced into the air conditioner 40 is discharged from the air conditioner 40 after the temperature is adjusted again, and thereafter, the above-mentioned action is repeated.

As described above, according to the floor base set 10 according to the present embodiment, the guide plate 11 and the partition plate 13 can be transported in an overlapping manner, and the floor base set 10 (floor base set 10) installed at the site can be transported. Since concrete is cast on the unit 10c) to form the concrete layer 28, the weight and volume during transportation can be reduced, and a structure suitable for radiant cooling and heating is used by using a member having a structure that can be easily transported. You can get things. Further, according to the radiant air-conditioning system 1 according to the present embodiment, the heat of the air A whose temperature has been adjusted can be transferred to the concrete layer 28 via each guide plate 11 of the floor base unit 10c, and the concrete layer. The heat radiation from 28 can cool and heat the space above it for heating and cooling.

Next, with reference to FIG. 5, the floor base set 10A according to the first modification of the embodiment of the present invention will be described. 5 (A) is a perspective view of the floor base set 10A, FIG. 5 (B) is a front perspective view of the guide plate 11 and the guide blades 15 constituting the floor base set 10A, and FIG. 5 (C) is a floor base set 10. It is a perspective view of the guide vane 15 which constitutes. In the floor base set 10A, guide blades 15 are added to the floor base set 10 (see FIG. 2) described above. The guide blades 15 are installed in a region extending from the boundary portion between the top surface 11t and the side surface 11s in the return air flow path 10r to the periphery thereof in front view. The guide blade 15 has a gap forming plate 15r and a plurality of guide pieces 15p. The gap forming plate 15r is a member that forms an outer peripheral gap 10re between the guide plate 11 around the boundary portion between the top surface 11t and the side surface 11s. The gap forming plate 15r is typically a plate-like member bent by press working or the like into a shape substantially the same as the periphery of a portion (boundary portion) where the top surface 11t and the side surface 11s are connected in a front view. Is formed to have the same length as the guide plate 11. By installing the gap forming plate 15r close to the guide plate 11, an outer peripheral gap 10re is formed between the guide plate 11 and the gap forming plate 15r in the flow direction X. When the gap forming plate 15r is installed, the side of the end portion of the portion facing the top surface 11t in the orthogonal direction Y is bent in a direction away from the top surface 11t over the entire flow direction X. The guide piece 15p is formed of a plate-shaped small piece. A plurality of guide pieces 15p are provided on the surface of the gap forming plate 15r facing the top surface 11t at intervals (typically at equal intervals) in the flow direction X. Each guide piece 15p extends so as to be orthogonal to the surface of the gap forming plate 15r facing the top surface 11t, and is inclined toward the main return trachea 32 side (downstream side of the flow of air A) with respect to the orthogonal direction Y. It is provided so as to extend. The degree to which each guide piece 15p is tilted toward the main return trachea 32 with respect to the orthogonal direction Y is approximately 15 ° to 45 °, typically 30 °. The configuration of the floor base set 10A is the same as that of the floor base set 10 (see FIG. 2) except that the guide blades 15 described above are added to the pair of return air flow paths 10r.

The floor base set 10A configured in this way is provided in the radiant cooling / heating system 1 in place of the floor base set 10 (see FIG. 2). Then, the air A that has flowed into the air supply flow path 10s of the floor base set 10A passes through the ventilation hole 13h and flows into the return air flow path 10r in the state of a jet, collides with the top surface 11t of the guide plate 11, and then reaches the sky. When the flow is along the surface 11t and flows from the top surface 11t to the side surface 11s along the inner surface in a direction intersecting the flow direction X, the outer peripheral gap 10re flows along the inclination of the guide piece 15p. .. By the flow of the air A in this way, it is suppressed that the air A flowing into the return air flow path 10r from the ventilation hole 13h in the jet flow state is suppressed, and the cold heat or the hot heat possessed by the air A is efficiently transferred to the guide plate 11 and the guide plate 11. It can be transmitted to the concrete layer 28.

Next, with reference to FIG. 6, the floor base set 10B according to the second modification of the embodiment of the present invention will be described. FIG. 6A is a perspective view of the floor base set 10B, and FIG. 6B is a perspective view of the guide plate 11B constituting the floor base set 10B. The floor base set 10B is provided with a guide plate 11B having cross fins 17 and parallel fins 18 in place of the guide plate 11 (see FIG. 2) of the floor base set 10 (see FIG. 2) described above. It is different from the floor base set 10 (see FIG. 2). The guide plate 11B is provided with intersecting fins 17 and parallel fins 18 with respect to the guide plate 11 (see FIG. 2). The intersecting fins 17 are attached to the top surface 11t so as to protrude from the top surface 11t into the return air flow path 10r. The intersecting fin 17 is composed of plate-shaped small pieces, extends so as to be orthogonal to the top surface 11t, and extends in the orthogonal direction Y with a first predetermined length. The first predetermined length is a length that exerts the effect of interrupting fins. The interrupting fins are used to reduce the thickness of the temperature boundary layer that develops as the distance from the tip of the flat plate that constitutes the fin increases when viewed in the direction of fluid flow, without changing the total heat transfer area. It is divided and arranged by shifting the position every other. The intersecting fins 17 are provided with a plurality of rows (typically at equal intervals) at intervals in the flow direction X, and a plurality of rows (three rows in the example shown in FIG. 6) in the orthogonal direction Y. There is. The rows of intersecting fins 17 adjacent to the orthogonal direction Y are typically offset by half a distance in the flow direction X. The parallel fins 18 are attached to the side surface 11s so as to protrude from the side surface 11s into the return air flow path 10r. The parallel fin 18 is composed of plate-shaped small pieces, extends so as to be orthogonal to the side surface 11s, and extends in the flow direction X with a second predetermined length. The second predetermined length is a length that exerts the effect of the turbulence promoter. In the turbulence accelerator, in general, when there is a protrusion in the shape of a flat plate, the fluid flowing along the flat plate is separated at the upper end of the protrusion, and the separated flow is transferred to the flat plate at a position several times downstream of the height of the protrusion. It is a protrusion that improves the heat transfer coefficient by utilizing the phenomenon that the heat transfer coefficient increases when reattaching. In the parallel fins 18, a plurality of rows provided at intervals (typically at equal intervals) in the flow direction X are provided in a plurality of rows in a direction along the orthogonal direction Y (in the example shown in FIG. 6, in the vertical direction). 2 rows) are provided. The rows of parallel fins 18 adjacent in the direction along the orthogonal direction Y are typically offset by half a distance in the flow direction X. The configuration of the floor base set 10B is the same as that of the floor base set 10 (see FIG. 2) except that the cross fins 17 and the parallel fins 18 are provided on the guide plate 11B as described above.

The floor base set 10B configured in this way is provided in the radiant cooling / heating system 1 in place of the floor base set 10 (see FIG. 2). Then, the air A that has flowed into the air supply flow path 10s of the floor base set 10B passes through the ventilation hole 13h and flows into the return air flow path 10r in the state of a jet flow, collides with the top surface 11t of the guide plate 11, and then reaches the sky. Crossed fins 17 that act as interrupting fins at the stage of flowing along the top surface 11t when the flow flows along the surface 11t and flows from the top surface 11t to the side surface 11s in a direction intersecting the flow direction X along the inner surface. Heat transfer to the entire guide plate 11B through the intersecting fins 17 is promoted by flowing along the surface of the surface, and at the stage of flowing along the side surface 11s, the heat is parallel by flowing over the parallel fins 18 acting as a turbulence promoter. Heat transfer will be performed more efficiently to the entire guide plate 11B via the fins 18. By flowing the air A in this way, the cold or hot heat possessed by the air A that has flowed into the return air flow path 10r from the ventilation hole 13h in the jet state can be efficiently transmitted to the guide plate 11B and the concrete layer 28. ..

In the above description, it is assumed that the surface of the guide plate 11 (including the guide plate 11B) facing the top surface 11t is an opening, but the surface facing the top surface 11t has a bottom surface and an air flow path. It may be configured to completely surround all four sides of the twelve.

In the above description, it is assumed that the main air supply pipe 31 and the main return air pipe 32 are configured by using the guide plate 11, but a duct or the like manufactured separately may be used without using the guide plate 11. If the main air supply tube 31 and / or the main return air tube 32 are separately configured, the shape can be determined according to the situation. On the other hand, when the guide plate 11 is used, the components and members of the floor base set 10 can be shared, and the manufacturing efficiency can be improved (including cost reduction).

In the above description, the partition plate 13 is arranged so that the width of the air supply flow path 10s and the width of the return air flow path 10r are equal (unchanged) in the flow direction X, respectively. The partition plate 13 may be configured so that the width of the air supply flow path 10s gradually narrows and the width of the return air flow path 10r gradually increases as the air flow direction advances toward the downstream side. With this arrangement, it is possible to suppress fluctuations in the amount of air A flowing from the air supply flow path 10s to the return air flow path 10r through the ventilation hole 13h, and the flow direction of each of the air supply flow path 10s and the return air flow path 10r. Since the flow velocity of the air A in X can be made substantially constant, fluctuations in the amount of heat transfer can be suppressed over the flow direction X, and the amount of heat transfer can be made substantially constant.

In the above description, the temperature control device is the air conditioner 40, but it may be a device such as a fan coil unit or a packaged air conditioner that can change the temperature of the gas.

In the above description, it is assumed that the gas flowing through the main air supply pipe 31, the air flow path 12, and the main return air pipe 32 is the air A whose temperature is regulated by the air conditioner 40 (temperature control device) or whose temperature is regulated. However, if the outside temperature is a temperature at which the outside air can be cooled, the outside air may be used, or depending on the application, the air inside the sewer pipe or the gas whose heat has been exchanged in the ground may be used.

1 Radiation air conditioning system 10, 10A, 10B Floor base set 10c Floor base unit 10f Floor base row 10r Return air flow path 10re Outer peripheral gap 10s Air supply flow path 11, 11B Guide plate 11s Side surface 11t Top surface 12 Ventilation space 13 Partition plate 13h Pore 15 Guide blade 15r Gap forming plate 15p Guide piece 17 Cross fin 18 Parallel fin 28 Concrete layer 31 Main air flow path 32 Main return air flow path 40 Air conditioner A Air X Air flow direction Y Cross direction

Claims (5)

A guide plate that guides gas in the flow direction, and has a top surface and a pair of side surfaces extending along the flow direction, and the pair of the side surfaces are the same as the top surface with the top surface sandwiched between them. A guide plate that is connected to the top surface so as to extend laterally at an angle and forms a ventilation space through which the gas flows inside the top surface and the pair of the side surfaces;
A partition plate extending along the flow direction and partitioning the ventilation space into a first ventilation space on the side far from the top surface and a second ventilation space on the side close to the top surface. A plurality of ventilation holes connecting the 1 ventilation space and the 2nd ventilation space are formed so as to line up in the flow direction, and move from the 1st ventilation space to the 2nd ventilation space through the ventilation holes. It is provided with a partition plate arranged so as to move the said gas along the top surface in a direction intersecting with the flow direction;
Floor base set. A guide blade provided near the boundary between the top surface and the side surface of the second ventilation space, and the flow passes through an outer peripheral gap through which the gas passes between the portion where the top surface and the side surface are connected. A guide blade having a gap forming plate formed over the direction and a guide piece for guiding the gas flowing into the outer peripheral gap in a direction intersecting the flow direction is provided;
The floor base set according to claim 1. The guide plate is a cross fin protruding from the top surface into the second ventilation space and extending in a direction intersecting the flow direction with a first predetermined length, and the cross fin extending from the side surface. It has a parallel fin protruding into a second ventilation space and extending along the flow direction with a second predetermined length;
The floor base set according to claim 1. A row of floor bases configured such that the floor base set according to any one of claims 1 to 3 has a third predetermined length in the flow direction intersects the flow direction. With a floor base unit configured by arranging multiple units in the direction;
With the main air flow path through which the gas supplied to the first ventilation space flows through one end of each of the plurality of floor base rows;
With the main return air flow path through which the gas collected from the second ventilation space flows through the other end opposite to the one end of each of the plurality of floor base rows;
With the floor construction layer formed on the outer upper surface of the floor base unit;
It is provided with a temperature control device for controlling the temperature of the gas supplied to the main air flow path;
Radiant heating and cooling system. At least one of the main air flow path and the main return air flow path was formed by the guide plate;
The radiant air conditioning system according to claim 4.

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