JP2002071168A - Radiation type air conditioning device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simplify device structure, improve the efficiency of heat exchange with indoor air, facilitate treatment of condensate, and simplify a work to clean and inspect a device. SOLUTION: A radiation air conditioning device 1 comprises a heat exchanger 10 with a heat transfer fin contained in a piping containing region 50, and drain panels 20 and 30 situated on the lower side of the heat exchanger. The drain panel and a side wall 55 have ventilation holes 23, 33, 58, and 59 to effect intercommunication between a piping containing region 50 and an indoor region. Air in a room is heat-exchanged with cold water of the heat exchanger through indoor air circulation by natural convention operation to effect cooling of indoor atmosphere. The heat exchanger and the drain panel are suspended in a room for cleaning and inspection to release a piping containing region to facilitate a work to clean and inspect a device constitution element and the internal part of the device.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a radiation type air conditioner, and more particularly to a radiation type air conditioner capable of simplifying the structure of the device and improving the efficiency of heat exchange with indoor air. It is.

[0002]

2. Description of the Related Art As a building air conditioning system, a convection type air conditioner with forced circulation of indoor air, such as a fan coil unit or a heat pump unit, or a convector, a hot water circulation panel, a floor heating device, or the like. A thermal radiation type air conditioner that heats an indoor atmosphere mainly by thermal radiation is known.

A convection type air conditioner cools or heats room air relatively quickly and reliably, so that it can cool or heat a wide range of rooms to a predetermined target temperature and reliably achieve desired indoor air conditioning conditions. . For this reason, convection type air conditioners are widely used in many buildings. However, this type of air conditioner cools or heats the room by forcibly inducing room convection of relatively high-speed cooling or warming air, so there is a difficulty in securing the comfort of room personnel. is there.

On the other hand, the radiant type air conditioner mainly exhibits a heating effect or a cooling effect by heating radiation or cooling radiation, and thus forms a comfortable indoor environment for indoor personnel. Can be adopted. The inventor of the present application has proposed a static air conditioner that can be mounted near a ceiling as such a cooling / heating device (Japanese Patent Application Laid-Open No. 9-152147). This type of radiant air conditioner has a configuration in which a pipe connected to a cold heat source and a hot heat source is accommodated in a perforated casing, and cool water or hot water flows through the pipe. The air in the pipeline accommodating region is cooled or heated by cold or hot water, flows out into the room through the ventilation hole of the casing, and cools or heats the room atmosphere. The air conditioner also includes a multi-purpose air pipe disposed in the pipe housing area. The multipurpose air pipe is connected to an air source of conditioned air (or specially processed air) such as clean air, ozone-containing air, aromatic air, or ionized air, and discharges the conditioned air to the pipe accommodation area.

[0005]

The radiant air conditioner of the above construction has achieved the intended purpose in forming a comfortable cooling and heating environment in a room by heat radiation and natural convection, but the simplification of the device structure has been achieved. There is room for further improvement in the efficiency of heat exchange with indoor air, the treatment of dew water in the pipe housing area, and the ease of cleaning and inspection work.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and an object of the present invention is to provide a radiant air conditioner which simplifies the device structure and improves the efficiency of heat exchange between a heat medium fluid and room air. To provide.

Another object of the present invention is to provide a radiant air conditioner which facilitates the treatment of dew water in a pipe housing area. Another object of the present invention is to provide a radiation type air conditioner that facilitates cleaning and inspection work of the device.

[0008]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a radiant air conditioner (1) which is arranged in a ceiling area and is capable of circulating a heat medium fluid. A large number of pipes (11), and a heat exchanger (10) in the form of a flat plate having a large number of heat transfer fins (12) for increasing the surface area of the pipes. Provided is a radiation type air conditioner which is horizontally arranged in a ceiling area and exchanges heat with room air.

According to the radiation type air conditioner having the above configuration, the indoor atmosphere can be cooled by disposing the heat exchanger in the ceiling area. Since the heat exchanger in the form of a flat plate can be mounted horizontally on the ceiling, the structure of the radiant air conditioner is simplified. Further, since the heat transfer fins greatly increase the surface area of the pipe, that is, the heat transfer area between the heat medium fluid and the room air, the heat exchange efficiency between the heat medium fluid and the room air is greatly improved.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS According to a preferred embodiment of the present invention, a radiant air conditioner includes a drain plate (20; 30) disposed below the heat exchanger. The condensed water generated by the cooling action of the heat exchanger stays on the drain plate and is drained by drainage means. The drain plate defines a pipe housing area (50) in which a heat exchanger can be housed, and forms a cooling heat radiation surface in a ceiling area. Preferably, two upper and lower drain plates are arranged below the heat exchanger, and each drain plate has a groove (21; 31) extending in parallel with the pipe, and an inter-groove region extending between adjacent grooves. (22; 32). The grooves of each drain plate are arranged at the same position in the vertical direction, and a large number of ventilation holes (23; 33) formed in each drain plate are arranged at positions shifted vertically. More preferably, the vent hole of the drain plate disposed on the upper side is disposed in a groove portion of the drain plate, and the vent hole of the drain plate disposed on the lower side is disposed in an inter-groove region of the drain plate. . According to such a configuration, the cool air cooled by the heat exchanger passes through the ventilation holes of each drain plate and flows down into the room, while the condensed water that has dropped from the ventilation holes of the upper drain plate is discharged to the lower drain plate. Is collected in the groove.

In a further preferred embodiment of the present invention, the drain plate is formed in a corrugated cross section, a valley portion of the corrugated cross section forms the groove, and a crest of the corrugated cross section forms the inter-groove region. I do. The air holes (23) of the upper drain plate (20) are arranged at predetermined intervals on the groove bottom of the valley (21), and the air holes (33) of the lower drain plate (30) are ) Are arranged at predetermined intervals along the ridge line. Preferably, the radiation type air conditioner includes drainage means (65; 66) for draining condensed water collected by the lower drain plate to the outside of the device.

In another preferred embodiment of the present invention, the heat exchanger divides a pipe housing area (50) defined on an upper side of a drain plate into upper and lower parts, and an upper area of the heat exchanger includes: A warm air inflow area (50a) into which relatively high-temperature room air flows in is formed, and a lower area of the heat exchanger is a cool air outflow area (5) through which relatively low-temperature air cooled by the heat exchanger flows out into the room.
0b). Preferably, the radiant air conditioner has a wall (55) that horizontally supports the heat exchanger, and the wall includes ventilation holes (58a; 59a) that communicate the warm air inflow area and the indoor space. And a vent hole (58b; 59b) communicating the cold air outflow area with the indoor space.

Preferably, the heat exchanger includes a heat transfer fin (12) formed in the form of a plate fin, a low fin, a brefin or a helical fin integrated with a pipe. A support (13) for supporting each pipe is supported by frame members (15) arranged on both sides of the heat exchanger, and a frame member on the first side is:
The wall member (55) is pivotally supported by the hinge means (16), and the frame member on the second side is detachably locked to the wall body by the locking means (18).

Similarly, a first side of the drain plate is pivotally supported by the wall body (55) by hinge means (25), and a second side of the drain plate is provided by locking means ( With 27), it is detachably locked to the wall. The heat exchanger pivots generally downward with the release of the locking means, and the drain plate pivots entirely downward with the release of the locking means. Preferably, the hinge means of the heat exchanger and the hinge means of the drain plate are arranged on opposite sides, and the heat exchanger and the drain plate pivot downward in a double-open manner and hang down from the ceiling surface.

From another viewpoint, according to a preferred embodiment of the present invention, the radiation type air conditioner has a water absorbing means (70; 80) for absorbing condensed water generated by the cooling action of the heat exchanger.
The water absorbing means is a water absorbing sheet (70) that travels in contact with the lower surface of the heat exchanger, and a travel driving device (71;
72) The water-absorbing sheet is an endless belt-type continuous sheet having a lower traveling zone (70a) and an upper traveling zone (70b) .The upper traveling zone travels above the heat transfer fins, and the lower travel zone travels above the heat transfer fins. It travels under the heat transfer fins while absorbing condensed water. Preferably, the water-absorbing sheet includes a number of ventilation openings (75) for interconnecting the area accommodating the heat exchanger and the indoor area. More preferably, the water absorbing means includes a guide member (74) for guiding the lower traveling zone so as to contact the lower edge of the heat transfer fin.

As a modification, the water absorbing means includes a water absorbing roller (81) moving in contact with the lower surface of the heat exchanger, a roller driving device (90) for moving the water absorbing roller, and a relative position between the water absorbing roller and the heat exchanger. Roller position adjusting means for adjusting the position (92, 93, 94)
And The water absorption roller moves below the heat exchanger while absorbing the condensed water of the heat transfer fin in contact with the lower edge of the heat transfer fin.

[0017] Preferably, the water absorbing means is a drainage device (76-78; 8) for draining water held by the water absorbing sheet or the water absorbing roller.
3-85). The drainage device is a drainage member (77, 78; 83, 84) that presses against the water absorbing sheet or the water absorbing roller or presses the water absorbing sheet or the water absorbing roller, and a drainage container that can receive the water squeezed out by the drainage member. (76; 85). If desired, a drain pipe or the like is connected to the drain container. As the drainage member, a roller, a rod, a strip, a spatula member, or the like that squeezes out moisture in the sheet or the roller can be preferably used.

As a material of the above-mentioned water-absorbing sheet or water-absorbing roller, a water-absorbing material made of a fibrous or synthetic resin having high water-absorbing performance and water-retaining performance, woven fabric, nonwoven fabric, porous material, flocking material, brush, sponge or sponge material Can be suitably used. An embossed pattern, small protrusions, irregularities, or the like may be appropriately formed on the surface of the water absorbing roller or the water absorbing sheet. In addition,
In the present specification, the meaning of the term “water absorption” is not necessarily limited to the wet state or the water-containing saturated state of the material or the base material itself, for example, a narrow gap between the materials, between brush hairs, and the like. As described above, the term should be interpreted in a broad sense including a state where water is transiently retained in a narrow gap or a gap between materials or base materials.

Preferably, the radiation type air conditioner includes a regulated air supply pipe for supplying regulated air to a pipe housing area containing the heat exchanger. Clean air, fresh air, ozone-containing air, aromatic air, ionized air, high-temperature and high-humidity air, or conditioned air that has been subjected to specific treatment such as filtered indoor circulating air is transferred from the conditioned air supply pipe to the pipe housing area. Effluent and supplied to the indoor environment with cool air.

If desired, the radiant air conditioner includes a blower for pushing room air into the warm air inflow area. The blower generates a relatively weak forced air circulation to assist or assist the natural convection phenomenon, thereby improving the heat exchange efficiency between the indoor air and the heat exchanger.

In the radiant air conditioner, a low-temperature heat medium fluid such as cold water is supplied to the heat exchanger during the cooling operation to cool the indoor environment. It may be supplied to the heat exchanger during the heating operation to heat the indoor environment by the heat radiation action of the radiation type air conditioner.

[0022]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below in detail with reference to the accompanying drawings. FIG. 1 shows a first embodiment of the present invention.
1 is a partial longitudinal sectional view of a building provided with a static air conditioner according to an embodiment (FIG. 1A) and a longitudinal sectional view of a static air conditioner (FIG. 1).
(B)).

The overall shape of the living room T of the building is schematically shown in FIG.
Is shown in The living room T is defined by a wall W, a ceiling C, and a floor F indicated by virtual lines (dashed lines). The stationary air conditioner 1 is arranged near the ceiling C, and the floor heating device 2 is provided on the floor F. The air conditioner 1 includes an end wall 54 and a side wall 55 that form a housing, and the drain plate 30 (FIG. 1B) that forms a lower surface of the air conditioner 1 is approximately 10
It is located below by about 0 to 150 mm. Floor heating system 2
Is constituted by a hot water pipe 6 embedded in a floor material 7.
A header unit 3 having a cold / hot water supply header hs and a cold / hot water reflux header hr is arranged near the wall. The hot water pipe 6 is connected to the supply nozzle hs and the reflux nozzle nr of the supply header hs and the reflux header hr via the connection pipes 4 and 5.
Respectively. The base ends of the cold water supply pipe 8 and the cold water recirculation pipe 9 are connected to the headers hs, hr, and the end parts of the supply pipe 8 and the recirculation pipe 9 are connected to the stationary air conditioner 1.

FIG. 2 is a schematic flowchart showing the entire configuration of the air conditioning system shown in FIG. In the header unit 2, a supply header hs, a recirculation header hr, an electric three-way valve 60, and a bypass circuit B are arranged. Bypass circuit B
Is constituted by a bypass pipe 61 and an electric three-way valve 62. The supply header hs and the reflux header hr communicate with the supply branch pipe 63 and the reflux branch pipe 64, respectively, and the branch pipe 6
Reference numerals 3 and 64 are respectively connected to the cold / hot water supply main pipe S and the cold / hot water reflux main pipe R. The supply main pipe S and the recirculation main pipe R are connected to heat source equipment (boiler, chiller, etc.) such as an air conditioning machine room,
A circulation circuit for the heat medium fluid (cold water or hot water) is configured. The heat medium fluid (cold water or hot water) of the heat source device is pressure-fed to the supply main pipe S, circulates through the stationary air conditioner 1 and the floor heating device 2 in each room, and then returns to the heat source device via the return main pipe R.

A supply branch pipe 42 for the conditioned air is connected to the stationary air conditioner 1. The upstream end of the supply branch pipe 42 is connected to the supply main pipe M of the conditioned air. The supply main pipe M is connected to a regulated air supply source (not shown) such as clean air, fresh air, ozone-containing air, aromatic air, ionized air, high-temperature and high-humidity air, or indoor circulating air after filtration. The conditioned air of the supply main pipe M is supplied to the stationary air conditioner 1 through the branch pipe 42.

FIG. 1A is an enlarged view of a portion "B" of FIG.
This is shown in (B). The stationary air conditioner 1 includes a heat exchanger 10 capable of circulating cold water, two drain plates 20 and 30 arranged below the heat exchanger 10, and an adjusted air supply pipe having a large number of discharge holes 41. 40. A pipe housing area 50 capable of housing the heat exchanger 10 and the regulated air supply pipe 40 is formed by the drain plate 20, the end wall 54, and the side wall 55. A heat insulating material 51 is disposed on a lower surface of the ceiling C, and the heat insulating material 51 defines an upper surface of the pipe housing area 50 and suppresses heat conduction / heat transfer between the pipe housing area 50 and the ceiling C. The pipe housing area 50 is divided into a warm air inflow area 50a and a cool air outflow area 50b by the horizontally arranged heat exchanger 10.

FIG. 3A is a sectional view of the static air conditioner taken along the line II of FIG. 1, and FIGS. 3B and 3C are a side view and a partially enlarged sectional view of the static air conditioner 1. is there.

The heat exchanger 10 has a large number of cold water circulation pipes 11 connected to the supply pipe 8 and the return pipe 9. A large number of heat transfer fins 12 are fixed to the pipe 11 at small intervals, and the heat transfer contact area of the heat exchanger 10 is greatly increased by the surface area of the fins 12. Each pipe 11 is supported by an L-shaped support 13 extending in the width direction. Both ends of the support 13 are fixed to a linear frame member 15 having a rectangular cross section.
5 is supported on each side wall 55.

A support member 4 for supporting the regulated air supply pipe 40
2 are suspended from the left and right frame members 15, and both ends of the support member 42 are fixed to the frame members 15. The regulated air supply pipe 40 is
Adjusted air such as clean air is discharged from the discharge hole 41 to a region above the heat exchanger 10, that is, into the warm air inflow region 50a.

As shown in FIGS. 3B and 3C, a pair of upper and lower guide members 56 are fixed to the side wall 55, and a movable perforated plate 57 is slidably inserted into the guide groove of the guide member 56. You. A number of vertically long ventilation holes 58 are formed in the perforated plate 57 at predetermined intervals. The same number of vertically long ventilation holes 59 as the ventilation holes 58 are formed in the side wall 55. The perforated plate 57 slides in the longitudinal direction along the guide member 56, and
8 and 59 may be displaced between a vented position that aligns and a closed position where vents 58 and 59 are completely displaced.

Vent holes 58a, 59a arranged on the upper side
Is located at the upper level of the heat exchanger 10 and interconnects the indoor area and the warm air inflow area 50a, while the ventilation holes 58b and 59b arranged on the lower side It is located at the level and interconnects the indoor area and the cold air outflow area 50b.

FIG. 4 is a sectional view and a plan view showing the structure of the heat exchanger element 10 '. As shown in FIG. 4E, the heat exchanger 10 is constituted by a plurality of heat exchanger elements 10 'interconnected along the pipe length direction. Each heat exchanger element 10 'is, as shown in FIG.
It has an overall configuration in the form of a flat plate in which a number of pipes 11 'having a diameter of about 10 mm are arranged in parallel at a predetermined interval, and is about 0.3 m to 1.0 m.
m and a total length L in the range of about 1.0 m to 4.0 m.

As shown in FIG. 4 (B), a circular opening 14 through which the tube material 11 ′ can be inserted is provided in a flange portion of each support 13.
Are provided at predetermined intervals of about 25 mm. Each support 13 has a total length of about 0.25 m to 0.91 m. The support members 13 are disposed at predetermined intervals of about 0.3 m to 0.4 m in the pipe length direction, and the heat exchanger elements 1
0 'extends in the width direction. As shown in FIG. 4C, each tube 11 ′ penetrates the opening 14, and the relative position of each tube 11 ′ is fixed by the support 13. The frame material 15 to which both ends of the support 13 are fixed is the heat exchanger element 1
0 ', extending over the entire length of the tube 11' and the support 13
Is firmly supported in place on the heat exchanger element 10 '.

The heat exchanger elements 10 'are arranged in the longitudinal direction of the pipe, and the pipe material 11' of each element 10 'is connected at its ends to each other as shown in FIG. Constitute. A certain number of heat exchanger elements 1
0 ′ are interconnected in series as shown in FIG.
Thus, a heat exchanger 10 having a large number of heat transfer fins 12 over the entire area is formed.

The above-mentioned cold water supply pipe 8 and cold water recirculation pipe 9
It is arranged adjacent to one end of the heat exchanger 10, and the base end of the pipe 11 is alternately connected to the supply pipe 8 and the reflux pipe 9.
The return pipe 19 is connected to the end of the adjacent pipe 11, and the cold water of the supply pipe 8 flows through one of the adjacent pipes 11 toward the end, and is returned at the return pipe 19.
It flows through the other pipe 11 toward the base end and flows out to the reflux pipe 9.

As shown in FIG. 3, the heat exchanger 10 is disposed in the pipe housing area 50. The frame member 15 located on the first side portion (the right side in FIG. 3A) of the heat exchanger 10 is attached to the inner wall surface of the side wall 55 via the hinge 16.
The hinge 16 pivotally supports the heat exchanger 10 about a hinge axis 17. The frame member 15 located on the second side portion (the left side in FIG. 3A) of the heat exchanger 10 is detachably fixed to the inner wall surface of the side wall 55 by the fastener 18. Thus, the heat exchanger 10 is supported on the left and right side walls 55 by the hinges 16 and the fasteners 18, and extends horizontally in the pipe housing area 50.

As shown in FIG. 3C, the drain plate 2
0, 30 have substantially the same corrugated cross-section and are arranged parallel below the heat exchanger 10. Drain plates 20, 30
Are integrally interconnected by a vertical connecting plate 26. A corrugated space 35 having a uniform height is formed between the upper and lower drain plates 20 and 30 over the entire area of the stationary air conditioner 1. The connecting plate 26 located on the first side (the left side in FIG. 3A) of the drain plates 20 and 30
It is attached to the inner wall surface of the side wall 55 by the hinge hinge 25. The hinge 26 has substantially the same structure as the hinge 16, and supports the drain plates 20, 30 so as to be pivotable downward about the hinge axis. Connecting plate 26 located on the second side (right side in FIG. 3A) of drain plates 20 and 30
Is removably fixed to the inner wall surface of the side wall 55 by the fastener 27. Thus, the drain plates 20, 30 are supported on the left and right side walls 55 by the hinges 26 and the fasteners 28, and extend horizontally on the lower surface of the pipe housing area 50.

FIG. 5 is a plan view of the drain plates 20 and 30, and FIG. 6 is a perspective view showing the wave form and the arrangement of the vent holes of the drain plates 20 and 30. Drain plates 20, 30
Has a wavy structure in which curved protruding portions 21 and 31 depressed downward and curved groove portions 22 and 32 protruding upward are alternately formed. In FIG. 5, the ridge lines of the drain plates 20 and 30 are illustrated by virtual lines. The raised portions 21 and 31 are arranged at the same position in the vertical direction, and the groove portions 22 and 32 are arranged in the same position in the vertical direction. As shown in FIGS. 3C, 5 and 6, a large number of long holes 23 are formed at the bottom of the groove 21.
Are arranged at predetermined intervals, and a number of elongated holes 33 are arranged at predetermined intervals in the ridge line portion of the raised portion 32.

The drain plates 20 and 30 are provided with a slight drain gradient in the longitudinal direction, and the drain plate 30 has a drain gradient downstream end as shown by imaginary lines in FIGS. 1 (A) and 3 (A). , A water collecting means 65 such as a gutter, and a drain pipe 66 is connected to the water collecting means 65.

Next, the operation of the air conditioning system of the living room T will be described with reference to FIGS. During the heating operation, the heat source equipment of the building circulates hot water through the supply main pipe S and the return main pipe R. The three-way valve 60 communicates the reflux header hr and the reflux branch 64 with each other and closes the downstream end of the reflux pipe 9. The hot water of the supply main pipe S is supplied to the supply header hs via the supply branch pipe 63 and the three-way valve 62, and circulates through the buried floor piping 6 to heat the floor surface.
The heat is returned to the heat source equipment via the reflux branch pipe 64 and the reflux main pipe R, and is reheated. The three-way valve 62 of the bypass circuit B is controlled to be switched to the bypass position or the supply position based on the detected value of the indoor heating load and the floor temperature.

Conditioned air such as hot and humid air is supplied from a regulated air supply source to the supply main pipe M. The conditioned air is introduced into the conditioned air supply pipe 40 through the supply branch pipe 42, and flows out of the discharge hole 41 into the pipe housing area 50. The pipe housing area 50 is always in communication with the room atmosphere through the ventilation holes 23 and 33, and the conditioned air in the area 50 is supplied to the ventilation holes 23 and 3.
3 to the room.

On the other hand, during the cooling operation, the heat source equipment of the building circulates cold water through the supply main pipe S and the return main pipe R. The three-way valve 60 closes the downstream end of the reflux header hr and communicates the cold water reflux pipe 9 and the reflux branch pipe 64 with each other. The cold water of the supply main pipe S is supplied through the supply branch pipe 63 and the three-way valve 62,
The water is supplied to the supply header hs, passes through the supply header hs, and is supplied to the cold water supply pipe 8. The chilled water in the chilled water supply pipe 8 circulates through the heat exchanger 10 of the cooling device 1 to exchange heat with the air in the pipe housing area 50. The chilled water thus received is cooled by the chilled water return pipe 9, the three-way valve 60, the return branch It is returned to the heat source equipment via the pipe 64 and the reflux main pipe R, and is cooled again. Three-way valve 62
Is controlled to be switched to the bypass position or the supply position based on the detected value of the indoor cooling load or the like, whereby the heat exchanger 10
Is controlled according to the indoor cooling load.

The air in the pipe housing area 50 is supplied to the heat exchanger 10
The temperature is lowered by the cooling action of the cooling air, and flows out into the room through the ventilation holes 58b, 59b of the cool air outflow region 50b, and the ventilation hole 2
3. The air flows out of the room through the corrugated space 35 and the ventilation hole 33, and flows down the room atmosphere according to the room temperature gradient. The relatively high temperature indoor air rises in the room due to natural convection caused by the indoor temperature gradient, flows into the warm air inflow region 50a through the vent holes 58a, 59a, is cooled by the heat exchanger 10, and is cooled in the cool air outflow region 50b. It descends and flows out into the room through the ventilation holes 58b, 59b, 23, 35, 33 as described above. At the same time, the drain plates 20, 30, especially the drain plates 30, which have been cooled due to the temperature drop of the pipe housing area 50,
Lower surface acts as a cooling radiation surface for cooling the indoor atmosphere by cooling radiation.

The moisture contained in the air in the pipe housing area 50 is condensed by the cooling action of the heat exchanger 10 and falls or condenses on the drain plate 20 as condensed water. The corrugated surface of the drain plate 20 collects the condensed water in the groove 22, and the condensed water falls from the vent hole 23 into the corrugated space 35. Vent 2
Since the valley portion of the drain plate 30 is located immediately below 3,
The condensed water is collected in the groove 31 and discharged to the outside of the apparatus through drainage means 65 and 66 disposed at the downstream end of the groove 31 at the drainage gradient.

Conditioned air such as fresh outside air or clean air after filtration is supplied by the supply main pipe M and the supply branch pipe 42 to the perforated pipe 4.
0, and flows out of the discharge hole 41 into the pipe housing area 50. The conditioned air mixes with the cool air in the pipe housing area 50, and then flows out into the room through the ventilation holes 23, 33, 58b, and 59b.

FIG. 7 is a sectional view showing the steps of the cleaning / repair inspection work of the stationary air conditioner 1. Drain plates 20, 30
As shown in FIG. 7, the heat exchanger 10 pivots downward about the hinge axes of the hinges 16 and 26 by unlocking the fasteners 18 and 27 (FIG. 3). To release. Therefore, at the time of cleaning / repair inspection work of the static air conditioner 1, the drain plates 20, 30 and the heat exchanger 10 hang down from the static air conditioner 1, exposing both the upper surface and the lower surface to the room, and relatively work. It descends to a height that is easy to do.
In addition, since the lower surface of the pipe housing area 50 is substantially completely opened to the inside of the room, the cleaning and inspection work in the area 50 can be performed relatively easily.

As described above, the stationary air conditioner 1 having the above configuration
Comprises a heat exchanger 10 with heat transfer fins housed in a pipe housing area 50, and drain plates 20 and 30 disposed below the heat exchanger 10;
5 has ventilation holes 23, 33, 58, 59 for interconnecting the pipe housing area 50 and the indoor area. Indoor air
The room air is cooled by heat exchange with the cold water of the heat exchanger 10 by the indoor air circulation by the natural convection action. At the same time, the drain plates 20 and 30 form a cooling environment in the room by the cool heat radiation action. In addition, the above-described structure of the drain plates 20 and 30 allows air to flow between the pipe housing area 50 and the indoor area, while ensuring that condensed water generated in the pipe housing area 50 does not fall into the room. Capture. Further, the conditioned air such as high-temperature and humid air, fresh air, or clean air discharged from the conditioned air supply pipe 40 to the pipe housing area 50 flows out into the room through the ventilation holes 23 and 33, and controls the indoor environment. Further, the heat exchanger 10 and the drain plates 20 and 30 of the stationary air conditioner 1 hang down in the room at the time of cleaning or inspection to open the pipe housing area 50, and clean and inspect the device components and the inside of the device. Make work easier.

FIGS. 8 and 9 are views showing various modifications of the above embodiment. In each of the drawings, components substantially the same as those shown in FIGS. Reference numerals are provided.

FIG. 8 is a side view, a sectional view and a perspective view showing a modification of the heat exchanger 10. As shown in FIG. In the above embodiment, the plate fin type heat exchanger is adopted as the heat exchanger 10. However, as the heat exchanger 10, for example, various types such as a low fin tube type, a breffin tube type, and a helical fin type are used. You can adopt one. For example, FIG.
(A), heat transfer fin 12 of heat exchanger 10 shown in (B)
Is composed of a large number of circular fins arranged at small intervals in the axial direction of the pipe 11, and the heat exchanger shown in FIG.
Consists of radial fins that are continuous over the entire length of the fin.

Further, the arrangement of the pipes 11 is not limited to the single-stage arrangement in the above embodiment, and the arrangement pattern of the pipes 11 may be a multiple-stage staggered arrangement as shown in FIG. , Any arrangement can be employed.

The pipe 11 and the drain plates 20, 30
As a material for the above, a tube material or a plate material made of a metal or alloy such as copper, aluminum, titanium, stainless steel, and iron can be preferably used. It is also possible to use a tube material or a plate material of a material such as synthetic rubber or synthetic resin as a material of the pipe 11 and the drain plates 20 and 30. Further, a film (for example, a film of a film-forming material containing titanium oxide as a main component) exhibiting an action of decomposing tobacco tar and the like may be formed on the surface of the pipes 11 and the fins 12.

FIG. 9 is a sectional view showing various types of the stationary air conditioner 1. The stationary air conditioner 1 of the above embodiment has ventilation holes 23, 33, 58, 59 on the lower surface and side surfaces of the stationary air conditioning device 1, but the ventilation holes are formed only on the side surfaces as shown in FIG. May be. In this case, the lower surface of the air conditioner 1 is formed by a drain plate 30 having no ventilation hole, and the drain plate 30 functions as a cold heat radiation plate. According to such a configuration, the thickness (height) of the air conditioner 1 can be reduced.

Further, as shown in FIG. 9B, the stationary air conditioner 1 includes a water collecting panel 65 extending below the perforated drain plate 30, and the condensate accumulated on the upper surface of the water collecting panel 65. The water may be forcibly drained by the drain pipe 67.
The drainage pipe 67 is connected to, for example, a suction port (not shown) of the drainage pump, and the drainage panel 65 is operated when the drainage pump is operated.
Aspirate the condensed water.

Further, as shown in FIG. 9 (C), the stationary air conditioner 1 has a forced circulation fan 75 (for example, a relatively small axial fan or a sirocco fan) having a relatively low blowing capacity.
May be provided. The fan 75 draws indoor air and blows it into the warm air inflow area 50a.
After being cooled by 0, the air is blown into the room from the cool air outflow area 50b through the vent holes 23, 33 and the like of the drain plates 20, 30. According to such a configuration, the forced convection of weak indoor air can be formed by the air conditioner 1.

Further, as shown in FIG. 9 (D), the stationary air conditioner 1 may be configured as a cold heat radiating panel not having the vent holes 58 and 59 on the side surfaces. On the lower surface of the air conditioner 1, a single drain plate 30 is arranged. According to such an air conditioner 1, the air conditioner 1 can be installed on a ceiling surface as an extremely thin cold radiation panel. Note that the drain plate 30 may be provided with a vent hole 33 if desired.

FIG. 10 is a longitudinal sectional view showing a configuration of a still air conditioner according to a second embodiment of the present invention, and FIG.
It is the top view and longitudinal cross-sectional view of the stationary air conditioner shown in FIG. In each drawing, the same reference numerals are given to the same components as those of the first embodiment.

As in the first embodiment, the stationary air conditioner 1 of this embodiment has a configuration in which the heat exchanger with heat transfer fins 10 and the regulated air supply pipe 40 are arranged in the pipe housing area 50. The indoor air exchanges heat with the cold water of the heat exchanger 10 by the indoor air circulation by natural convection action, and the indoor atmosphere is cooled. The conditioned air such as hot and humid air, fresh air or clean air discharged from the supply pipe 40 to the pipe housing area 50 flows out of the lower surface of the air conditioner 1 into the room to control the indoor environment. As in the first embodiment, the heat exchanger 10 is supported on the left and right side walls 55 by the hinges 16 and the fasteners 18 and extends horizontally in the pipe housing area 50. Fastener 18
Release allows the heat exchanger 10 to hang down in the room, making it possible to clean and inspect the device components and the inside of the device relatively easily.

However, the air conditioner 1 differs from the first embodiment in the following points. That is, the air conditioner 1
Does not include the drain plates 20 and 30 and has the heat exchanger 1
As means for absorbing the condensed water of 0, a water absorbing sheet 70 is provided. As shown in FIG. 10, the water-absorbent sheet 70 is made of an endless belt-type continuous sheet including a lower traveling zone 70a and an upper traveling zone 70b. The upper traveling zone 70b travels above the heat transfer fins, and the lower traveling zone 70a The vehicle travels in a state of contacting the lower edge of the heat transfer fins 12 and absorbs condensed water attached to the heat transfer fins 12.

As shown in FIG. 11, the air conditioner 1 has a driving roller 71 and a floating roller 72 on which a water absorbing sheet 70 can be wound, and the center axis of the driving roller 71 is a power transmission mechanism 73 including a speed reducer and the like. To the drive device M via
Upper traveling belt 70b and lower traveling belt 70 of water absorbing sheet 70
a extends horizontally on the upper side and the lower side of the heat exchanger 10, and the heat exchanger 10 is accommodated between the upper and lower traveling zones 70b: 70a. A large number of ventilation openings 75 are formed in the water absorbing sheet 70. In this example, the square ventilation openings 75 are arranged in a staggered arrangement in the running direction of the water absorbing sheet 70.

The driving torque of the driving device M is transmitted to the central shaft of the driving roller 71 via the power transmission mechanism 73, and the driving roller 71 drives the water absorbing sheet 70 to rotate. The upper traveling zone 70b of the water-absorbent sheet 70 travels in the direction of arrow B on the upper side of the heat exchanger 10 and is inverted by the floating roller 72,
Turn in the direction. The lower traveling zone 70a travels below the heat exchanger 10 in the direction of arrow A.

A plate-like guide member 74 for regulating the traveling position of the lower traveling zone 70a is arranged at a predetermined interval. The lower traveling zone 70a travels while sliding on the lower edge of the heat transfer fin 12 or rubbing the lower edge, and absorbs condensed water attached to the heat transfer fin 12. Near the drive roller 71, a pair of dewatering rollers 77 and 78 for squeezing the lower traveling belt 70a with a relatively small pressure are disposed, and the lower traveling belt 70a passes through the nip portion of the dewatering rollers 77 and 78. Squeezed into
The water retained in the sheet substrate is discharged. Dewatering roller 7
A bucket-type drainage container 76 for receiving drainage is disposed immediately below the drainage tubes 7 and 78, and a drainage pipe 79 (shown by a virtual line) is connected to the drainage container 76.

Thus, the water-absorbing sheet 70 is connected to the heat exchanger 1
The dewatering rollers 77, 78 and the drainage container 76 drain the water retained by the lower traveling zone 70a. The ventilation opening 75 of the water-absorbing sheet 70 connects the area of the heat exchanger 10 with the indoor space, and the cool air cooled by the heat exchanger 10 falls through the ventilation opening 75 into the indoor space.

According to such a configuration, the condensed water in the heat exchanger 10 can be removed from the heat exchanger 10 without providing a drain plate below the heat exchanger 10, and
Since the cool air of the heat exchanger 10 uniformly falls into the room from the whole area of the heat exchanger 10, it is advantageous in leveling the temperature distribution in the room. The air conditioner 1 has a control device (not shown) for controlling the operation of the drive device M. The control device includes a timer, a torque control means, and the like, and operates the drive device M periodically or automatically. At the same time, the traveling speed of the water absorbing sheet 70 is controlled. As shown by a broken line in FIG. 11B, a guide member 74 ′ having a circular cross section, such as a roller or a rod, may be used in place of the plate-like guide member 74. Also,
A member having the same height as the heat transfer fins 12 is used as the support 13, and the upper traveling belt 70 b is connected to the heat transfer fins 12.
May contact the upper edge. In this case, the water absorbing sheet 70
Absorbs water droplets and the like adhering to the heat transfer fins 12 also from above the heat exchanger 10, so that the condensed water of the heat transfer fins 12
It is more effectively removed.

FIGS. 12A, 12B, and 12C show FIG.
12 is a sectional view showing a modification of the stationary air conditioner 1 shown in FIG. 11, and a water absorbing device 80 of the air conditioner 1 includes a water absorbing roller 81.
And a drainage vessel 85. The water absorbing roller 81 is
The lower surface of the heat exchanger 10 rolls and condensed water attached to the heat transfer fins 12 is absorbed. A pair of drainage rods 83 abut on the outer surface of the water absorbing roller 81 to squeeze out the water held by the water absorbing roller 81. The water discharged from the water absorbing roller 81 is
It falls into the drainage container 85.

As shown in FIGS. 12B and 12C, a guide rail 99 is attached to the side wall 55, and a pair of floating rollers 95 run on the guide rail 99. Floating roller 9
5 is supported by a horizontal member 98 and a vertical support 91
Hang from the horizontal member 98. A rotating shaft 82 integrally supporting the water absorbing roller 81 passes through a vertically elongated slot 93 of the vertical support 91. The vertical support 91 supports the rotating shaft 82 and suspends the drainage container 85. Rotary axis 8
2 penetrates a bearing 94, which is suspended by a horizontal member 98 via a tension coil spring 92. The spring 92 urges the rotating shaft 82 upward, and the water absorbing roller 8
1 is constantly brought into contact with the heat exchanger 10. Guide rail 99, horizontal member 98, idler roller 95, bearing 94, longitudinal slot 93, spring 92 and vertical support 91
Are arranged in pairs on the left and right side walls 55.

A driving device 90 is connected to the rotating shaft 82 via a power transmission mechanism. The power transmission mechanism, if desired,
Equipped with a reducer. The operation of the driving device 90 causes the rotation shaft 8 to rotate.
2 rotates, the water absorbing roller 81 rolls on the lower surface of the heat exchanger 10, absorbs the condensed water of the heat transfer fins 12, and the water of the water absorbing roller 81 falls into the drainage container 85. When the water absorbing roller 81 reaches the end of the heat exchanger 10, the driving device 90 reverses the water absorbing roller 81 and rolls the water absorbing roller 81 to the initial position. The air conditioner 1 includes a driving device 90
The control device has a timer and a torque control means, etc., and operates the driving device 90 periodically or automatically and controls the moving speed of the water absorbing roller 81. Control.

FIG. 12D is a sectional view showing a modified example of the water absorbing device 80. Water absorption device 80 shown in FIG.
Is provided with a drive roller 95 that rotates on a guide rail 99 by the power of a drive device 90. The water absorbing device 80 includes an operation belt 93 that transmits the rotation of the rotation shaft 81 to the drive roller 95, and transmits the torque of the rotation shaft 81 to the drive roller 95 via the operation belt 93.

With such a water absorbing device 80 as well, condensed water in the heat exchanger 10 can be removed from the heat exchanger 10 without providing a drain plate below the heat exchanger 10.

Although the preferred embodiments of the present invention have been described in detail, the present invention is not limited to the above-described embodiments, and various modifications may be made within the scope of the present invention described in the appended claims. It is needless to say that the modification or the modification is also included in the scope of the present invention.

For example, the cold water supply pipe 8 may be arranged at one end of the heat exchanger 10 and the cold water reflux pipe 9 may be arranged at the other end of the heat exchanger 10. In this case, the cold water in the supply pipe 8 flows through each pipe 11 in the same direction, and flows out to the reflux pipe 9 on the opposite side.

The ventilation holes 2 of the drain plates 20 and 30
The drain plates 3 and 33 may be arranged at positions displaced in the pipe length direction of the pipe 11, and the cross-sectional shape of the drain plates 20 and 30 may be designed to be a rectangular groove repeated form or a mountain-shaped repeated form.

Further, the end wall 54 of the pipe housing area 50 and / or
Alternatively, the side wall 55 can be formed of a net or a metal mesh, a punching metal, or the like.

If desired, various types of heat insulating materials such as a sticking type, a spraying type or a coating type may be added to the drain plates 20 and 3.
0, the end walls 54 and / or the side walls 55 may be lined or laminated, or the drain plates 20, 30 and the end walls 54 and / or the side walls 55 may be formed by a composite plate or a sandwich panel interposed with a heat insulating material. You may.

Further, in the above embodiment, the hot water is circulated only to the floor heating device 2 during the heating operation. However, the hot water during the heating operation is circulated to the stationary air conditioner 1, and the air conditioner 1 is heated and radiated. It may be used as a device, and in the above embodiment, as a bypass control valve of the header unit 2,
Although the two-position control type electric three-way valve is used, a proportional control type three-way valve can be used as the bypass control valve. In the above embodiment, the radiation type air conditioner (stationary air conditioner 1) has been described as an air conditioning system component used in combination with the floor heating device. However, the radiation type air conditioner may be used independently of the floor heating device. It can be used or can be used together with various types of air conditioners such as a fan coil unit, a heat pump type air conditioner, or a convector.

[0075]

As described above, according to the radiation type air conditioner of the present invention, the structure of the device can be simplified, and the efficiency of heat exchange between the heat medium fluid and the indoor air can be improved.

Further, the radiation type air conditioner of the present invention provided with the drain plate having the above configuration facilitates the treatment of dew water in the pipe housing area.

Further, according to the radiation type air conditioner of the present invention,
By providing the hinge means, the heat exchanger and / or the drain plate can be pivoted downward during maintenance or the like.
Cleaning and inspection work of the device can be greatly simplified.

[Brief description of the drawings]

FIG. 1 is a partial longitudinal sectional view of a building provided with a still air conditioner according to a first embodiment of the present invention and a longitudinal sectional view of a still air conditioner.

FIG. 2 is a schematic flowchart showing the entire configuration of the air conditioning system shown in FIG.

FIG. 3 is a cross-sectional view, a side view, and a partially enlarged cross-sectional view of the stationary air conditioner.

FIG. 4 is a sectional view and a plan view showing the structure of the heat exchanger element.

FIG. 5 is a plan view showing a structure of a drain plate.

FIG. 6 is a perspective view showing a corrugated configuration of a drain plate and an arrangement of ventilation holes.

FIG. 7 is a cross-sectional view showing a process of cleaning / repair inspection work of the still air conditioner.

FIG. 8 is a side view, a sectional view, and a perspective view showing a modification of the heat exchanger.

FIG. 9 is a sectional view showing various types of a still air conditioner.

FIG. 10 is a longitudinal sectional view showing a configuration of a stationary air conditioner according to a second embodiment of the present invention.

11 is a plan view and a longitudinal sectional view of the stationary air conditioner shown in FIG.

FIG. 12 is a cross-sectional view showing a modification of the static air conditioner shown in FIGS. 10 and 11;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Static air conditioner 10 Heat exchanger 11 Cold water circulation pipe 12 Heat transfer fin 13 L-shaped support 15 Frame material 20, 30 Drain plate 23, 33 Vent hole 40 Regulated air supply pipe 50 Pipe accommodation area 50a Hot air inflow area 50b Cold air outflow Area 54 End wall 55 Side wall 56 Guide member 57 Perforated plate 58, 59 Vent hole 70 Water absorbing sheet 80 Water absorbing device 81 Water absorbing roller

Claims (23)

[Claims] 1. A radiant air conditioner arranged in a ceiling area and capable of circulating a heat medium fluid, comprising: a number of pipes through which a heat medium fluid can flow; and a number of heat transfer fins increasing the surface area of the pipe. A radiation type air conditioner, comprising: a heat exchanger having a flat plate shape, wherein the heat exchanger is disposed substantially horizontally in a ceiling area and exchanges heat with room air. 2. The radiant air conditioner according to claim 1, further comprising a drain plate disposed below the heat exchanger and receiving condensed water generated by a cooling action of the heat exchanger. 3. A drain plate having two upper and lower drain plates, the drain plate including a groove extending in parallel with the pipe and an inter-groove region extending between adjacent grooves. The grooves of the plate are arranged at the same position in the top and bottom, and each drain plate is
With a large number of vents, each vent of the upper and lower drain plate,
The radiation type air conditioner according to claim 2, wherein the radiation type air conditioner is arranged at a position shifted in a vertical direction. 4. The vent hole of the drain plate disposed on the upper side is disposed in a groove portion of the drain plate, and the vent hole of the drain plate disposed on the lower side is disposed in an inter-groove region of the drain plate. The radiation type air conditioner according to claim 3, wherein: 5. The drain plate has a corrugated cross section, a valley portion of the corrugated cross section forms the groove, and a crest portion of the corrugated cross section forms the inter-groove region. The vent holes are arranged at predetermined intervals on the groove bottom of the valley portion, and the vent holes of the lower drain plate are arranged at predetermined intervals along the ridge line of the mountain portion. The radiation type air conditioner according to claim 4. 6. The radiant air conditioner according to claim 2, further comprising a drainage unit configured to drain condensed water collected by the drain plate to the outside of the device. 7. The heat exchanger divides a pipe accommodating area defined above the drain plate into upper and lower portions, and the upper area of the heat exchanger is provided with warm air into which room air having a relatively high temperature flows. 3. The cooling air outlet area, wherein a lower area of the heat exchanger constitutes a cold air outlet area in which relatively low-temperature air cooled by the heat exchanger flows out into the room.
The radiation type air conditioner according to any one of claims 6 to 6. 8. The radiant air conditioner according to claim 1, further comprising a wall that horizontally supports the heat exchanger. 9. A drain plate disposed below the heat exchanger and receiving condensed water generated by a cooling action of the heat exchanger, wherein the wall is provided on a first side of the drain plate. A hinge means for pivotally supporting and a locking means for releasably supporting a second side of the drain plate, wherein the locking means releases the second side of the drain plate. The radiant air conditioner according to claim 8, wherein the radiant air conditioner is rotated downward as a whole. 10. The wall includes hinge means for pivotally supporting a first side of the heat exchanger and a latch for releasably supporting a second side of the heat exchanger. 9. A radiant air conditioner according to claim 8, further comprising means, wherein the heat exchanger pivots downward generally when the locking means releases the second side. 11. The wall body has a ventilation hole that communicates a warm air inflow area defined above the heat exchanger with an indoor space, and cool air defined below the heat exchanger. The radiation type air conditioner according to claim 8, further comprising a ventilation hole communicating between the outflow area and the room space. 12. The radiant air conditioner according to claim 1, further comprising water absorbing means for absorbing condensed water generated by a cooling action of the heat exchanger. 13. The radiant air conditioner according to claim 12, wherein said water absorbing means includes a water absorbing sheet running in contact with a lower surface of said heat exchanger. 14. The water absorbing means includes a travel driving device for driving the water absorbing sheet to travel, and the water absorbing sheet comprises an endless belt-shaped water absorbing sheet including an upper traveling zone and a lower traveling zone. The vehicle travels above the heat transfer fins, and the lower travel zone travels below the heat transfer fins while absorbing condensed water of the heat transfer fins. Radiation type air conditioner. 15. The radiation type air conditioner according to claim 13, further comprising a drainage unit for draining water held by the water absorbing sheet. 16. The radiant air conditioner according to claim 13, wherein the water-absorbing sheet includes a ventilation opening for interconnecting a region accommodating the heat exchanger and the indoor region. . 17. The radiant air conditioner according to claim 12, wherein said water absorbing means includes a water absorbing roller moving in contact with a lower surface of said heat exchanger. 18. A roller driving device for moving the water absorbing roller, and roller position adjusting means for adjusting a relative position between the water absorbing roller and the heat exchanger, wherein the water absorbing roller is provided below the heat transfer fin. 18. The radiant air conditioner according to claim 17, wherein condensed water of the heat transfer fin is absorbed in contact with an edge. 19. The radiant air conditioner according to claim 17, further comprising a drainage unit configured to drain water held by the water absorption roller. 20. The heat transfer fin according to claim 1, wherein the heat transfer fin is in a form of one of a plate fin, a low fin, a brefin, and a helical fin integrated with the pipe. Radiation type air conditioner according to the paragraph. 21. The radiation according to any one of claims 1 to 19, further comprising a blower that blows room air into a warm air inflow area defined above the heat exchanger. Type air conditioner. 22. The radiant air conditioner according to claim 1, further comprising an adjustment air supply pipe configured to supply adjustment air to a pipe housing area housing the heat exchanger. apparatus. 23. During a cooling operation, a low-temperature heat medium fluid such as cold water is supplied to the heat exchanger. During a heating operation, a high-temperature heat medium fluid such as hot water is supplied to the heat exchanger. And cooling the room air during the cooling operation and heating the room air during the heating operation.
10. The radiation type air conditioner according to any one of items 9 to 9.