JP2009257681A - Air conditioning system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To easily anticipate an improvement in air conditioning efficiency with respect to an interior space, and to reduce initial cost and running cost, in an air conditioning system using a radiation panel. <P>SOLUTION: This air conditioning system is so configured that the radiation panel 3 is arranged on a ceiling or a floor so that the interior space 4A is partitioned from a backside space 4B and the interior space 4A is irradiated with heat by the radiation panel 3. The heat radiation surfaces T of the radiation panel 3 are secured on both surfaces on the side of the interior space 4A and the side of the backside space 4B. An air blowing means F is provided for distributing air affected by release of heat to the side of the backside space 4B to the side of the interior space 4A. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

In an air conditioning system, for example, a fan coil unit makes air contact with a heat exchanger and blows the heat (hot / cold) air into the indoor space for air conditioning, or radiant heat from a radiant panel The present invention corresponds to the latter, for example, one that performs air conditioning mainly. For example, the heat medium is circulated inside and the heat is transferred from the heat radiation surface of the radiation panel to the space. A radiant panel of a type that radiates heat, or a type of radiant panel that heats itself (hot or cold) and radiates heat from the heat radiating surface to the space, such as an electric heater, indoor space and back space (for example, behind the ceiling) The present invention relates to an air conditioning system which is arranged in a state of partitioning a space, an underfloor space, etc.) and is configured to be able to radiate heat from the radiation panel to the indoor space.
In addition, although the description regarding heat is hereinafter simply referred to as “heat”, this includes both heat and cold, and for the sake of convenience, for the sake of convenience, mainly heat is used as an example. I am explaining.

Conventionally, as this type of air conditioning system, as shown in FIG. 3, a radiant panel of a type in which a heat transfer liquid such as cold water or hot water is circulated inside and the heat is radiated from the heat radiation surface T to the indoor space 4A. 3 is installed along the ceiling to partition the indoor space 4A and the ceiling back space (corresponding to the back space) 4B, and from the other heat source device 20 installed at a completely different position, the ceiling back space There are air outlets 21a of the duct 21 installed over 4B in a penetrating state facing the indoor space at a plurality of locations on the ceiling (for example, see Patent Document 1).
This air-conditioning system can be used in combination with radiant air-conditioning that air-conditions the indoor space by heat radiation from the bottom of the radiant panel and direct air-conditioning that blows conditioned air from another heat source device from the ceiling to the indoor space through the duct. To do.
As another air conditioning system, as shown in FIG. 4, the radiating panel 22 that does not have its own heat generating means is installed along the ceiling, so that the indoor space 4 </ b> A and the ceiling space (corresponding to the back space). 4B and the air outlet 23 that blows out the air whose temperature is adjusted by the heat source device 20 installed outside the room to the ceiling space 4B, and a part of the conditioned air blown to the ceiling space 4B. There was a thing provided with the blower outlet 24 which blows off to space 4A (for example, refer to patent documents 2).
This air-conditioning system uses radiated air-conditioning that heats the temperature-adjusted air as a heat medium to the radiant panel and indirectly air-conditions the indoor space by heat radiation from the lower surface, and conditioned air from the ceiling through the outlet 24 It can be used in combination with direct air conditioning that blows into the indoor space.

Japanese Patent Laying-Open No. 2005-24197 (FIG. 1) Japanese Patent Laid-Open No. 02-33538 (FIG. 3)

Among the conventional air conditioning systems described above, according to the former, both the front and back surfaces of the radiant panel are installed in a state that functions as a heat radiation surface, but heat is radiated to the ceiling back space side, If the temperature of the ceiling space rises and approaches the temperature of the radiant panel, the temperature gradient from the radiant panel to the ceiling space becomes difficult, and the heat radiation from the indoor space side is the main. Therefore, it is difficult to expect improvement in air-conditioning efficiency because the heat radiation efficiency is lowered despite the provision of heat radiation surfaces on both sides.
In addition, the heat radiated to the ceiling space side is only leaked to the outside through the building frame and hardly contributes to the air conditioning of the indoor space. Therefore, there is a problem that heat loss tends to be large and air conditioning efficiency for the indoor space tends to be low.
Furthermore, it is necessary to prepare both a heat source for radiant air conditioning and a heat source for direct air conditioning, and there is a problem that both initial cost and running cost tend to be high.
On the other hand, according to the latter of the conventional air conditioning systems described above, the radiant panel is heated by the heat transfer of the conditioned air from the heat source device. In addition, heat is taken away by heat transfer, heat loss increases, and heat utilization efficiency in the radiant panel tends to be low.
Therefore, there is a problem that the air conditioning efficiency for the indoor space tends to be low.
Furthermore, since only the surface on the indoor space side functions as a heat radiating surface in the radiating panel, the heat radiating efficiency is lowered and it is difficult to expect improvement in the air conditioning efficiency.

  Therefore, the object of the present invention is to solve the above-mentioned problems, and in air conditioning using a radiant panel, it is easy to expect improvement in air conditioning efficiency for the indoor space, and it is possible to reduce initial cost and running cost. There is an air conditioning system.

  A first characteristic configuration of the present invention is an air conditioner in which a radiating panel is arranged on a ceiling or a floor so as to partition an indoor space and a back space, and heat from the radiating panel is radiated to the indoor space. In the system, heat radiation surfaces of the radiant panel are secured on both the indoor space side and the back space side, and air that has been affected by heat release to the back space side is disposed on the indoor space side. Is provided with a blowing means which can blow freely.

According to the first characteristic configuration of the present invention, the heat radiation surface of the radiating panel is ensured on both the indoor space side and the back space side, and the air on the back space side is used as the indoor space. Since the air blowing means that can be blown freely is provided on the side, in addition to the usual heat radiation on the heat radiation surface on the indoor space side, the air blowing means on the heat radiation surface on the back side space side. By blowing the air on the backside space side to the indoor space side, the air affected by the heat release moves quickly from the vicinity of the heat radiation surface on the backside space side to the indoor space, and instead, the backside space On the side heat radiation surface, new air moves from another position and receives heat released from the radiation panel. Accordingly, heat radiation by the radiant panel can be performed very efficiently not only on the indoor space side but also on the back space side.
That is, the heat generated from the radiant panel can be released to the space more efficiently using both the front and back sides of the radiant panel, and the air affected by the heat release to the back side space side is released by the blowing means. Since the air is blown to the indoor space side, the air conditioning on the indoor space side can be performed by using both the radiation air conditioning by the heat radiation surface on the indoor space side of the radiation panel and the direct air conditioning by the blown air from the back side space side. It becomes possible.
Therefore, even if the installation area of the radiation panel is the same, it is possible to efficiently air-condition the indoor space in a shorter time.
Furthermore, since the blown air from the back side space side is air that has been affected by the heat release to the back side space of the radiant panel, the heat source for radiant air conditioning and the heat source for direct air conditioning, as in the past, are used. It is not necessary to prepare both, and the initial cost and running cost can be reduced.
Therefore, in the air conditioning using the radiant panel, it is easy to expect improvement in the air conditioning efficiency for the indoor space, and it is possible to economically perform the air conditioning by reducing the cost.

  According to a second characteristic configuration of the present invention, the air blowing means is composed of a plurality of dispersed fans, and each fan is configured to be individually switchable in drive.

According to the second characteristic configuration of the present invention, in addition to achieving the above-described operational effects of the first characteristic configuration of the present invention, the fan is targeted at a limited spot on the indoor space side. For example, in an indoor space such as an office, the fan is installed at each desk, and if the person who is present wants, the fan at that location Can be used to drive.
Therefore, although it is possible to perform average air conditioning with the indoor space as one object, it is also possible to realize a fine air conditioning operation that can individually cope with the desire of each part.

  Embodiments of the present invention will be described below with reference to the drawings. In the drawings, the parts indicated by the same reference numerals as those in the conventional example indicate the same or corresponding parts.

FIG. 1 shows a situation in which a ceiling-mounted air conditioning system K which is an embodiment of the air conditioning system of the present invention is installed. In a building space 4 whose upper and lower surfaces are partitioned by slabs 1, respectively, 2 is provided with a radiating panel 3 so that the indoor space 4A below it can be air-conditioned.
That is, the building space 4 is partitioned into an indoor space 4A and a back space 4B by the ceiling 2 and the radiation panel 3.
And in the said embodiment, the lighting fixture 5 is installed in a part of ceiling 2, and the communication port 6 which connects the said indoor space 4A and the back side space 4B around the installation part of the lighting fixture 5 is provided. As the air in the back side space 4B is blown out to the indoor space 4A by the operation of a fan (corresponding to the air blowing means) F, which will be described later, the air on the side of the indoor space 4A is passed through the communication port 6 to the back side space 4B. Can be inhaled.

On the other hand, the radiating panel 3 is formed with a through hole 8 penetrating from the back side space 4B to the indoor space 4A, and the through hole 8 blows air on the back side space 4B side to the indoor space 4A. A free first fan (an example of a blowing means) F1 is provided.
The ceiling 2 is provided with an air duct 7 penetrating from the back space 4B to the indoor space 4A, and a lower end portion of the air duct 7 is extended to a desk position in the indoor space. And the 2nd fan (an example of a ventilation means) F2 which can ventilate the air by the side of the said back side space 4B to the desk peripheral position in the spot periphery is provided in the exit part of the ventilation duct 7. In FIG.

The radiation panel 3 will be described.
As shown in FIG. 1, the radiating panel 3 is configured such that a metal heat medium flow pipe 3 </ b> B is integrally incorporated in a planar metal heat radiating plate 3 </ b> A. The heat medium flow pipe 3B is connected to a heat medium flow pipe 9A from a heat source device 9 installed outdoors, and the heat medium flow is between the heat source device 9 and the radiation panel 3. The heat medium H (for example, cold / hot water) can be circulated through the pipes 3B and 9A. Therefore, it is possible to release heat of the heat medium H sent from the heat source device 9 from the heat radiation surfaces T on the front and back surfaces of the heat radiation plate 3A to the indoor space 4A and the back space 4B. .
That is, in the radiant panel 3, a heat medium (corresponding to a heat generating means) H that can freely generate heat (cold heat and heat) is built in a state in which it can be circulated between the heat source device 9 and the own heat can be generated. It is configured such that air conditioning can be performed by radiating heat from both the front and back surfaces of the heat radiation plate 3A.

An example of the operation of the air conditioning system K will be described as device control in which heat radiation by the radiation panel 3 is continued by circulation of the heat medium H by the heat source device 9 and air is blown by the first fan F1.
According to the air conditioning system K, it is possible to perform the operation control as described above, and accordingly, heat radiation as usual is performed from the heat radiation surface Ta on the indoor space 4A side. In parallel with the air conditioning being performed, the back side space 4B side air affected by the heat release from the heat radiation surface Tb on the back side space 4B side is blown to the indoor space 4A side by the first fan F1, This can contribute to the air conditioning of the indoor space 4A.
Accordingly, it is possible to efficiently air-condition the indoor space in a shorter time.
Further, the heat radiation surface T of the radiating panel 3 moves on the indoor space 4A side due to convection of indoor air, and on the back space 4B side, the first fan in addition to convection. Since new air is forcibly moved by the blowing by F1, the heat radiation can be efficiently continued by the heat radiation surfaces T on both the front and back surfaces of the radiation panel 3.
Furthermore, since the blown air from the back side space side is air that has been affected by the heat release to the back side space of the radiating panel 3, as in the past, a heat source for radiant air conditioning and a heat source for direct air conditioning Both of them need not be prepared, and the initial cost and running cost can be reduced.
Therefore, in the air conditioning using the radiating panel 3, it is easy to expect an improvement in the air conditioning efficiency for the indoor space 4A, and it is possible to economically perform the air conditioning by reducing the cost.
Further, if the air blowing drive by the second fan F2 is also used, in addition to the above effect being able to be implemented more efficiently, the second fan F2 is provided with a limited spot on the indoor space 4A side. It becomes possible to blow as a target, and it is possible to realize a fine air conditioning operation that can individually cope with the desire of each part.

[Another embodiment]
Other embodiments will be described below.

<1> The radiant panel 3 is not limited to the heat medium made of cold / hot water described in the previous embodiment as the heat generating means H, and other heat medium (including refrigerant) is used as the heat generating means H. It may be built-in. In addition to the heat medium, for example, a heating means H such as a heating wire or a thermoelectric element may be incorporated. These are collectively referred to as the radiation panel 3.
Moreover, it is not limited to installing only one radiation panel 3 on the ceiling 2, and a plurality of radiation panels 3 may be installed.
Moreover, the site | part used as the installation object of the said radiation panel 3 is not restricted to a ceiling, For example, a floor etc. may be sufficient.
<2> The air blowing means F is not limited to the configuration in which a fan is provided for each of the plurality of discharge ports described in the previous embodiment. For example, as shown in FIG. A combined air blowing means may be used. According to this embodiment, the fan F is installed in the back side space 4B, passes through the through hole 8 of the radiating panel 3 from the fan F to the indoor space 4A, and passes through the ceiling 2 from the fan F. A duct 7 having a flow path leading to a desk peripheral position is connected to the blow-out side of the fan F.
The plurality of discharge ports may be provided with an air volume adjusting device so that each can be opened and closed individually.

  In addition, as mentioned above, although the code | symbol was written in order to make contrast with drawing convenient, this invention is not limited to the structure of an accompanying drawing by this entry. In addition, it goes without saying that the present invention can be carried out in various modes without departing from the gist of the present invention.

The schematic diagram which shows the air-conditioning system demonstrated by embodiment Schematic diagram showing an air conditioning system of another embodiment Schematic diagram showing a conventional air conditioning system Schematic diagram showing a conventional air conditioning system

Explanation of symbols

3 Radiation panel 4A Indoor space 4B Back space F Blowing means H Heating means T Heat radiation surface

Claims (2)

An air conditioning system in which a radiant panel is arranged on a ceiling or a floor so as to partition an indoor space and a back space, and heat from the radiant panel can be radiated to the indoor space,
The heat radiation surface of the radiation panel is secured on both the indoor space side and the back space side, and the air affected by the heat release to the back space side can be blown to the indoor space side. Air-conditioning system equipped with a simple air blowing means.   2. The air conditioning system according to claim 1, wherein the air blowing unit includes a plurality of fans arranged in a distributed manner, and each fan is configured to be individually switchable in drive.

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