JPH0316578B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement of a ceiling radiation type air conditioner in which a heat radiation pipe for flowing a heat source fluid is provided in the ceiling of a room to be air conditioned.

Conventionally, in the above-mentioned ceiling radiant air conditioner, when disposing heat dissipation pipes, as shown in FIG.
The pipes 3 are buried in the finishing mortar 22 for forming the ceiling surface 4, or as shown in FIG.
A heat insulating material 15 such as glass wool is laid on the back surface of the ceiling material 23 from above the mounting pipes 3, or as shown in FIG. A metal plate 25 having a concavo-convex portion 25a for forming a path is overlapped and bonded to form a conduit corresponding to a heat dissipation pipe 3 on the concave-convex portion 25a, and a heat insulating material 15 is laid on the back side of these bonded plates. A layout structure has been adopted.

However, in either structure, since the ceiling surface 4 is a hard plate-like surface, there is a problem in that the reverberant effect on room sounds is large and the comfort of the room is deteriorated in terms of hearing.

Therefore, it is possible to attach plaster ceiling boards with sound-absorbing surfaces or temporary board materials with sound-absorbing properties to these hard plate-like ceiling surfaces, but these materials with sound-absorbing properties Almost without exception, the thermal conductivity is low, so the effectiveness of heat radiation from the heat radiation pipe to the indoor side is greatly reduced. However, it is necessary to set a large temperature difference between the source fluid temperature and the room temperature, and the energy saving effect of using a small temperature difference heat source fluid, which is the original advantage of ceiling radiant air conditioning, is greatly impaired. is derived.

In view of the above-mentioned circumstances, an object of the present invention is to achieve both the heat radiation effect from the heat radiation pipe into the room and the sound absorption effect against indoor sounds through rational improvements.

A characteristic configuration of the present invention is that, in the above-mentioned ceiling radiant air conditioner, a large number of good thermal conductors that conduct heat from the heat radiation pipe are provided on the ceiling surface side facing the room to be air-conditioned, and between the good thermal conductors, a sound absorption device for indoor sound is provided. The purpose is to form a space, and its functions and effects are as follows.

In other words, by using a large number of good thermal conductors for heat transfer, the heat radiation effect from the heat dissipation pipe into the room can be increased to the same level as when the heat dissipation pipe is exposed indoors. Indoor sound can be effectively absorbed by the action of the multiple spaces formed in each, and as a result, it is possible to perform economical heating and cooling that takes full advantage of the energy-saving effect that is the inherent advantage of the ceiling radiant type. We have created an extremely practical air conditioner that can greatly improve indoor comfort.

Next, a first embodiment of the present invention will be described based on FIGS. 1 to 3.

1 and 2 show an air conditioning structure for a general living room 1, in which a large number of coiled heat dissipation pipes 3 are supported in parallel across the entire surface of the lower surface of an upper slab 2, and below the heat dissipation pipes 3. At the same time, the cold and hot water outlet 5a and inlet 5b of the cold and hot water generator 5 are circulated to the supply side header pipe 6a and the return water side header pipe 6b which are respectively connected to both ends of each heat radiation pipe 3. They are connected to each other separately via pipes 7a and 7b, with a circulation pump 8 interposed in one circulation pipe 7b.

Then, the header pipe 6a, than the circulation pump 8,
On the 6b side, the amount of cold and hot water from the bypass pipe 9 side and the amount of cold and hot water from the return water side header pipe 6b are connected to the connection part between the bypass pipe 9 and the return water circulation pipe 7b, which short-circuit and connect both circulation pipes 7a and 7b. A merging type automatic three-way valve 10 is installed to change the merging ratio with the merging ratio, and a controller 12 is provided to automatically control the three-way valve 10 based on information from a room temperature detection sensor 11 installed indoors. Heat dissipation pipe 3 accompanying the flow of cold and hot water
The indoor temperature is cooled or heated by heat radiation toward the indoor side, and the amount of cold and hot water supplied to the heat dissipation pipe 3 is automatically changed and controlled by the three-way valve 10 based on information from the room temperature detection sensor 11. is configured to maintain it within a set range.

In the figure, reference numeral 13 indicates a ventilation outside air supply port that blows outside air whose temperature and humidity are controlled by the primary air conditioner 14 into the room along the ceiling surface 4, and causes air flow inside the room by supplying outside air. In this way, in particular, the indoor temperature is made uniform during heating, and air flow along the ceiling surface 4 reliably prevents dew condensation on the ceiling surface 4 during cooling.

To configure the installation structure of the heat dissipation pipe 3 and the formation structure of the ceiling surface 4, as shown in FIG. It is provided over the entire space where the pipes 3 are arranged side by side to suppress heat radiation loss from the heat radiation pipe 3 to the upper slab 2 side, and a good thermal conductor 16 made of an extremely large number of ribbon-shaped metal wires gathered in a felt shape is installed in each heat radiation area. A layer of thickness larger than the diameter of the pipe 3 is provided around the circumference of the pipe 3 over the entire surface of the space where the pipes are arranged side by side, and furthermore, a layer made of woven fabric is provided on the lower surface of the thermal conductor 16 formed into a flat shape. Ventilated ceiling decorative sheet 1
7 is pasted over the entire surface.

In other words, while increasing the efficiency of heat radiation from the heat radiation pipe 3 to the indoor side due to the heat conduction effect of the heat conductor 16,
Indoor sound is absorbed by the sound-absorbing effect of a very large number of spaces 18 existing in the felt-like thermal conductor 16, thereby improving the comfort of the room in terms of hearing.

Note that the specific material of the metal wires forming the thermal conductor 16 and the density of the metal wires gathered in the felt shape can be variously changed. Various sheet materials can be used as long as the material does not block heat radiation from the bottom surface of the heat conductor 16 into the room and does not easily reflect indoor sounds.Furthermore, the ceiling decorative sheet 17 may be omitted. .

Next, a second embodiment of the present invention will be described.

In a ceiling radiation type air conditioner that cools, heats, and air-conditions a room by radiating heat from a radiating pipe 3 provided in the ceiling as in the first embodiment, the installation structure of the radiating pipe 3 is shown in FIGS. 4 and 5. As shown in the figure, a meandering coil-shaped heat dissipation pipe 3 is attached to a rectangular frame 19, and both end connecting portions 3a and 3b are connected to the frame 19.
A good thermal conductor made of a metal fin, which is installed internally in a state of protruding outward, and has a bent part 16a along the ceiling surface at the end of the lower surface when the frame body 19 is attached to the ceiling. 16 are arranged in parallel on the heat dissipation pipe 3 throughout the entire interior of the frame 19, with slit-like openings 18a being formed between adjacent bent portions 16a.

The bent portion 1 of the rectangular parallelepiped formed from the frame 19 and the aggregate of the fin-like thermal conductors 16
Across the entire surface of the opposite side from the side where 6a exists,
A space 1 is formed between the heat conductors 16 while pasting the plate-shaped heat insulating material 15 made of rock wool material.
8 filled with glass wool 20,
Pipe connection parts 3a, 3 of adjacent rectangular parallelepiped units
Ceiling radiant units U are arranged in parallel on the ceiling by sequentially connecting the units B to each other.

That is, with a plurality of ceiling radiant units U arranged side by side over almost the entire surface of the ceiling, a net serving as the ceiling decorative material 17 is stretched over the flush lower surfaces of the units U to form the ceiling surface 4. To,
In addition, while the heat dissipation from the heat dissipation pipe 3 to the indoor side due to the flow of cold and hot water is improved by the heat conduction effect of the fin-like thermal conductors 16, the indoor sound is absorbed into the multiple spaces 18 between the thermal conductors 16 and filled therein. The glass wool 20 is used to effectively absorb sound.

Note that the specific shape of the fin-like thermal conductors 16 can be modified in various ways, and the spacing between them can be changed as appropriate.

As the member filling the sound absorption space 18 between the fin-like thermal conductors 16, various felt-like bodies 20 such as a felt-like aggregate of metal wires can be used instead of glass wool, or the felt-like body 20 can be omitted. Also good.

Next, a third embodiment of the present invention will be described based on FIGS. 6 and 7.

A lattice-like body is formed from a plurality of heat conductors 16 made of metal plates, and a serpentine coil-shaped heat dissipation pipe 3 having pipe connection parts 3a and 3b at both ends is arranged in a lattice-like shape along the surface direction of the lattice-like body. At the same time, the felt-like aggregates 20 of metal wires are filled in the numerous cellular spaces 18 of the lattice-like body, thereby forming a ceiling radiant unit U having the same usage form as the second embodiment described above. It has been done.

Then, a plurality of ceiling radiant units U are arranged side by side over the entire surface of the ceiling with pipes connected to each other and a heat insulating material 15 is laid on the upper surface of the units U. Below the wooden lattice-like body 2 for forming the ceiling surface 4.
1, and as in the first and second embodiments described above, a large number of cellular spaces 18 and a plurality of cellular spaces 18 are filled, while the heat dissipation from the heat dissipation pipe 3 into the room is improved by the heat conduction effect of the heat conductor 16. Indoor sound is effectively absorbed by the action of the felt-like aggregate 20.

As other embodiments, the specific materials and shapes of the large number of thermal conductors 16 can be modified in various ways, and the assembly structure of the thermal conductors 16 and the contact structure with the heat dissipation pipe 3 can also be modified in various ways. Improvements are possible.

Furthermore, with the modification and improvement of the assembly structure of multiple thermal conductors 16, the sound absorbing space 18 formed between them
Various improvements can be made to the formation structure and shape.

Moreover, as the heat source fluid flowing through the heat radiation pipe 3, various heat medium solutions can be used instead of water.

The ceiling radiant air conditioner according to the present invention can be applied to air conditioning for various purposes such as general air conditioning, factory air conditioning, and special air conditioning for clean rooms and constant temperature and humidity rooms.

[Brief explanation of the drawing]

1 to 3 show a first embodiment of the present invention, FIG. 1 is an elevational view showing the air conditioning structure, FIG. 2 is a schematic plan view of the same, and FIG. 3 is an enlarged view of main parts. 4 and 5 show a second embodiment of the present invention, FIG. 4 is a partially cutaway perspective view of the ceiling radiant unit, and FIG. 5 is an enlarged sectional view of the same, and FIGS. FIG. 7 shows a third embodiment of the present invention, FIG. 6 is a plan view of the ceiling radiant unit, FIG. 7 is an enlarged sectional view of the same,
FIG. 8, FIG. 9, and FIG. 10 are sectional views showing conventional examples, respectively. 1... Room to be air conditioned, 3... Heat dissipation pipe, 4...
Ceiling surface, 16... Good thermal conductor, 18... Sound absorbing space, 20... Felt-like body.

Claims (1)

[Scope of Claims] 1. A ceiling radiation type air conditioner in which a heat radiation pipe 3 for flowing a heat source fluid is provided on the ceiling of an air-conditioned room 1, and the radiation pipe 3 is provided on the ceiling surface 4 side facing into the air-conditioned room 1. A ceiling radiation type air conditioner in which a large number of thermal conductors 16 that conduct heat from a heat radiation pipe 3 are provided, and a sound absorbing space 18 for indoor sound is formed between the thermal conductors 16. 2. The ceiling radiation type air conditioner according to claim 1, wherein the thermal conductor 16 is a felt-like metal wire assembly. 3. The ceiling radiation type air conditioner according to claim 1, wherein the thermal conductor 16 is a fin, and a felt-like body 20 is provided between the fins.