JP7042731B2 - Air conditioning control system - Google Patents

Air conditioning control system Download PDF

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JP7042731B2
JP7042731B2 JP2018211917A JP2018211917A JP7042731B2 JP 7042731 B2 JP7042731 B2 JP 7042731B2 JP 2018211917 A JP2018211917 A JP 2018211917A JP 2018211917 A JP2018211917 A JP 2018211917A JP 7042731 B2 JP7042731 B2 JP 7042731B2
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JP2020079655A (en
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昌弘 小田根
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Mitsubishi Electric Building Techno-Service Co Ltd
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Description

本発明は、空調制御システム、特に輻射空調方式による空調制御に関する。 The present invention relates to an air conditioning control system, particularly air conditioning control by a radiant air conditioning system.

従来から、室内の空気を対流させることで室内の空調を行う対流空調方式の室内機が主流であった。ただ、近年では、省エネの観点から、天井裏に冷気を吹き出し冷却することで天井面から冷気を放射（輻射）し、これにより室内を空調する輻射空調方式の室内機が登場してきている。 Conventionally, a convection air-conditioning type indoor unit that air-conditions a room by convection of indoor air has been the mainstream. However, in recent years, from the viewpoint of energy saving, an indoor unit of a radiant air-conditioning system that radiates (radiates) cold air from the ceiling surface by blowing cold air to the back of the ceiling and thereby air-conditioning the room has appeared.

特開平０８－１８９６６０号公報Japanese Unexamined Patent Publication No. 08-189660 特開２００８－０１４５５７号公報Japanese Unexamined Patent Publication No. 2008-014557 特開２００６－２１４６９６号公報Japanese Unexamined Patent Publication No. 2006-214696 特開平１１－１０８４２０号公報Japanese Unexamined Patent Publication No. 11-108420

しかしながら、従来の輻射空調方式の室内機は、天井裏に冷気を吹き出すようにしているため、天井裏に結露が発生しやすい状況であった。 However, in the conventional radiant air-conditioning type indoor unit, since cold air is blown out to the ceiling, dew condensation is likely to occur in the ceiling.

本発明は、天井裏に冷気を吹き出し冷却することで室内を空調する輻射空調方式が採用されている場合において、天井裏の結露の発生を防止することを目的とする。 An object of the present invention is to prevent the occurrence of dew condensation on the ceiling when a radiant air conditioning system that air-conditions the room by blowing cold air to the ceiling is adopted.

本発明に係る空調制御システムは、部屋の天井裏に設けられた吹出口から冷気を吹き出し部屋の天井面を冷却することによって前記部屋を空調する輻射空調方式にて空調制御を行う空調制御システムにおいて、前記天井裏における温度及び湿度を測定する測定手段と、前記測定手段により測定された温度及び湿度から算出した露点温度から結露の発生の可能性があると判断した場合、前記天井裏に対し結露防止用の空調制御を行う空調制御手段と、を有し、前記空調制御手段は、前記部屋の空気を対流させることで前記部屋を空調する対流空調方式での空調制御が可能な場合において、前記結露防止用の空調制御として、前記吹出口から吹き出す冷気の設定温度を上昇させることにより前記部屋の温度が設定温度から所定値以上上昇した場合、前記吹出口から吹き出す冷気の設定温度を上昇させることにより前記部屋の空調制御を前記輻射空調方式から前記対流空調方式に切り替えることを特徴とする。 The air-conditioning control system according to the present invention is an air-conditioning control system that controls air-conditioning by a radiant air-conditioning system that air-conditions the room by blowing cold air from an outlet provided behind the ceiling of the room and cooling the ceiling surface of the room. If it is determined from the measuring means for measuring the temperature and humidity in the ceiling and the dew point temperature calculated from the temperature and humidity measured by the measuring means, dew condensation may occur on the ceiling. The air-conditioning control means includes an air-conditioning control means for performing air-conditioning control for prevention, and the air- conditioning control means is said to be capable of air-conditioning control in a convection air-conditioning system for air-conditioning the room by convection of air in the room. As an air conditioning control for preventing dew condensation, when the temperature of the room rises by a predetermined value or more by raising the set temperature of the cold air blown out from the outlet, the set temperature of the cold air blown out from the outlet is raised. It is characterized in that the air conditioning control of the room is switched from the radiant air conditioning system to the convection air conditioning system .

また、前記空調制御手段は、前記部屋の温度が設定温度に所定の閾値以内に近づく、あるいは達すると、前記対流空調方式から前記輻射空調方式に切り替えることを特徴とする。
Further, the air conditioning control means is characterized in that when the temperature of the room approaches or reaches a set temperature within a predetermined threshold value, the convection air conditioning system is switched to the radiant air conditioning system .

本発明によれば、天井裏に冷気を吹き出し冷却することで室内を空調する輻射空調方式が採用されている場合において、天井裏の結露の発生を防止することができる。 According to the present invention, when a radiant air-conditioning system for air-conditioning a room by blowing cold air to the ceiling is adopted, it is possible to prevent the occurrence of dew condensation on the ceiling.

本実施の形態に係る空調制御装置の一実施の形態により空調制御が行われる部屋及びその部屋の天井裏に設置される空調設備の概要を示す模式図である。It is a schematic diagram which shows the outline of the room where the air-conditioning control is performed by one embodiment of the air-conditioning control device which concerns on this embodiment, and the air-conditioning equipment installed in the ceiling of the room. 本実施の形態において空調制御対象の部屋における時間と室温との関係を示すグラフ図である。It is a graph which shows the relationship between time and room temperature in a room subject to air conditioning control in this embodiment. 本実施の形態において天井裏の結露を防止するための空調制御処理を示すフローチャートである。It is a flowchart which shows the air-conditioning control process for preventing the dew condensation on the ceiling in this embodiment.

以下、図面に基づいて、本発明の好適な実施の形態について説明する。 Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.

図１は、本発明に係る空調制御装置の一実施の形態により空調制御が行われる部屋及びその部屋の天井裏等に設置される空調設備の概要を示す模式図である。図１には、空調設備が設置されるビル等の建物の部屋１及びその部屋１の天井裏２が示されている。そして、図１には、空調設備として、建物に設置される全熱交換器３と、天井裏２に設置される室内機４及びダンパ５，６が示されている。室内機４は、図１において二重線で示しているダクト７によって全熱交換器３及びダンパ５，６と接続される。全熱交換器３は、外気（吸気）を外気取入口８から取り込み、全熱交換して室内機４に供給する。室内機４は、室温が部屋１の利用者等により設定された室温の目標温度（以下、「設定温度」）になるように、全熱交換器３から供給される空気の温度を調整する。室内機４は、温度調整した空気を、ダンパ５を介して吹出口９から天井裏２に供給する場合と、ダンパ６を介して吹出口１０から部屋１に供給する場合と、がある。前者は、吹出口１０から冷気を吹き出し部屋１の天井面を冷却することによって室内（部屋１の中）を空調する輻射空調方式に該当する。後者は、部屋１の空気を対流させることで室内の空調を行う対流空調方式に該当する。各空調方式は、各ダンパ５，６を開閉制御することで実現可能であるが、このダンパ５，６の切替制御は、コントローラ１１によって行われる。なお、図１では、コントローラ１１と他の構成要素との間に設けられるデータ制御信号線を破線で示し、そのデータ信号又は制御信号の流れの方向を矢印で示している。 FIG. 1 is a schematic diagram showing an outline of a room in which air conditioning is controlled according to an embodiment of the air conditioning control device according to the present invention, and an air conditioning facility installed in the ceiling of the room or the like. FIG. 1 shows a room 1 of a building such as a building in which an air conditioner is installed and an attic 2 of the room 1. FIG. 1 shows a total heat exchanger 3 installed in a building, an indoor unit 4 installed in the ceiling 2, and dampers 5 and 6 as air conditioning equipment. The indoor unit 4 is connected to the total heat exchanger 3 and the dampers 5 and 6 by the duct 7 shown by the double line in FIG. The total heat exchanger 3 takes in outside air (intake) from the outside air intake port 8, exchanges total heat, and supplies it to the indoor unit 4. The indoor unit 4 adjusts the temperature of the air supplied from the total heat exchanger 3 so that the room temperature becomes the target temperature of the room temperature (hereinafter, “set temperature”) set by the user or the like of the room 1. The indoor unit 4 may supply the temperature-controlled air from the outlet 9 to the ceiling 2 via the damper 5 or from the outlet 10 to the room 1 via the damper 6. The former corresponds to a radiant air conditioning system that air-conditions a room (inside the room 1) by blowing cold air from the air outlet 10 and cooling the ceiling surface of the room 1. The latter corresponds to a convection air-conditioning system in which the room is air-conditioned by convection of the air in the room 1. Each air conditioning system can be realized by controlling the opening and closing of the dampers 5 and 6, and the switching control of the dampers 5 and 6 is performed by the controller 11. In FIG. 1, a data control signal line provided between the controller 11 and other components is indicated by a broken line, and the flow direction of the data signal or the control signal is indicated by an arrow.

天井裏２には、更に温度及び湿度を測定する温湿度センサ１２が設置され、コントローラ１１は、空調設備の監視を行う中央監視装置（図示せず）による制御のもと、温湿度センサ１２が測定した温度及び湿度から算出した露点温度から結露の発生の可能性があると判断した場合、室内機４の動作制御やダンパ５，６の開閉制御を行うことで、天井裏２に対し結露防止用の空調制御を行う。 A temperature / humidity sensor 12 that further measures temperature and humidity is installed behind the ceiling 2, and the controller 11 is controlled by a central monitoring device (not shown) that monitors air conditioning equipment. When it is determined from the dew point temperature calculated from the measured temperature and humidity that dew condensation may occur, dew condensation is prevented on the ceiling back 2 by controlling the operation of the indoor unit 4 and opening / closing of the dampers 5 and 6. Perform air conditioning control for.

コントローラ１１は、従前からある汎用的なハードウェア構成で実現できる。すなわち、コントローラ１１は、ＣＰＵ、ＲＯＭ、記憶手段としてのＲＡＭ及びハードディスクドライブ（ＨＤＤ）、中央監視装置と通信を行う通信手段としてのネットワークインタフェースを内部バスに接続して構成される。 The controller 11 can be realized by a conventional general-purpose hardware configuration. That is, the controller 11 is configured by connecting a CPU, a ROM, a RAM and a hard disk drive (HDD) as a storage means, and a network interface as a communication means for communicating with a central monitoring device to an internal bus.

本実施の形態においては、全熱交換器３、室内機４及びダンパ５等によって輻射空調方式の室内機を形成し、全熱交換器３、室内機４及びダンパ６等によって対流空調方式の室内機を形成する。なお、天井裏２に温湿度センサ１２を設ける必要はあるが、本実施の形態における空調設備自体は、輻射空調方式及び対流空調方式の双方が実現可能な既存の空調設備を利用して実現できる。なお、本実施の形態では、全熱交換器３及び室内機４を各空調方式にて兼用しているが、別構成にて各空調方式の室内機を構成してもよい。 In the present embodiment, the indoor unit of the radiant air-conditioning system is formed by the total heat exchanger 3, the indoor unit 4, the damper 5, and the like, and the indoor unit of the convection air-conditioning system is formed by the total heat exchanger 3, the indoor unit 4, the damper 6, and the like. Form a machine. Although it is necessary to provide the temperature / humidity sensor 12 in the attic 2, the air conditioning equipment itself in the present embodiment can be realized by using the existing air conditioning equipment that can realize both the radiant air conditioning method and the convection air conditioning method. .. In the present embodiment, the total heat exchanger 3 and the indoor unit 4 are also used in each air-conditioning system, but an indoor unit of each air-conditioning system may be configured in a different configuration.

以上の構成において、コントローラ１１が輻射空調方式にて空調制御する場合、ダンパ５の開度が１００％となるよう開制御し、ダンパ６の開度が０％となるよう閉制御する。そして、外気取入口８から取り込まれた外気は、全熱交換器３で全熱交換され、室内機４にて温度調整された後、ダンパ５を介して吹出口９から天井裏２に供給される。そして、天井裏２の空気は、還気口１３から吸い込まれ、全熱交換器３で全熱交換された後、排気口１４から建物の外へ排気される。 In the above configuration, when the controller 11 controls the air conditioning by the radiant air conditioning method, the opening control of the damper 5 is controlled to be 100%, and the closing control is performed so that the opening degree of the damper 6 is 0%. Then, the outside air taken in from the outside air intake port 8 is totally heat exchanged by the total heat exchanger 3, the temperature is adjusted by the indoor unit 4, and then the outside air is supplied from the outlet 9 to the ceiling 2 via the damper 5. To. Then, the air in the ceiling 2 is sucked in from the return air port 13, and after the total heat exchange is performed by the total heat exchanger 3, the air is exhausted from the exhaust port 14 to the outside of the building.

一方、コントローラ１１が対流空調方式にて空調制御する場合、ダンパ６の開度が１００％となるよう開制御し、ダンパ５の開度が０％となるよう閉制御する。そして、外気取入口８から取り込まれた外気は、全熱交換器３で全熱交換され、室内機４にて温度調整された後、ダンパ６を介して吹出口１０から室内に供給される。そして、室内の空気は、還気口１５から吸い込まれ、全熱交換器３で全熱交換された後、排気口１４から建物の外へ排気される。 On the other hand, when the controller 11 controls the air conditioning by the convection air conditioning method, the opening control is performed so that the opening degree of the damper 6 becomes 100%, and the closing control is performed so that the opening degree of the damper 5 becomes 0%. Then, the outside air taken in from the outside air intake port 8 is totally heat exchanged by the total heat exchanger 3, the temperature is adjusted by the indoor unit 4, and then the outside air is supplied to the room from the outlet 10 via the damper 6. Then, the air in the room is sucked in from the return air port 15, exchanged with the total heat exchanger 3, and then exhausted to the outside of the building from the exhaust port 14.

次に、本実施の形態における空調制御について説明する。ここでは、冷房を利用する夏場を想定して説明することにする。 Next, the air conditioning control in the present embodiment will be described. Here, the explanation will be made assuming the summer when the air conditioner is used.

本実施の形態では、空調方式として、輻射空調方式及び対流空調方式の双方を利用している。輻射空調方式は、対流空調方式と比較すると、高い快適性を提供でき、また省エネ効果が優れている一方、空調設備を動作させてから部屋１の温度が設定温度に到達するまでに時間がかかるという欠点がある。換言すると、対流空調方式は、輻射空調方式と比較して省エネ効果は劣るものの、部屋１の温度をより早く設定温度まで近づけることができる。 In this embodiment, both the radiant air conditioning system and the convection air conditioning system are used as the air conditioning system. Compared to the convection air conditioning method, the radiant air conditioning method can provide higher comfort and has an excellent energy saving effect, but it takes time for the temperature of the room 1 to reach the set temperature after operating the air conditioning equipment. There is a drawback. In other words, the convection air conditioning system is inferior in energy saving effect to the radiant air conditioning system, but the temperature of the room 1 can be brought closer to the set temperature faster.

そこで、本実施の形態においては、図２に示すように、例えば部屋１において業務が開始される朝などの空調設備の動作開始時（時点Ｔ０）には、対流空調方式にて空調を制御させる。より詳細には、コントローラ１１は、ダンパ６の開度を１００％とし、ダンパ５の開度を０％として、室内機４からの冷気が吹出口１０から部屋１に供給されるようにする。これにより、輻射空調方式で空調制御する場合より早く室温を設定温度に到達させることが可能となる。 Therefore, in the present embodiment, as shown in FIG. 2, when the operation of the air conditioning equipment starts (time point T0), for example, in the morning when the work is started in the room 1, the air conditioning is controlled by the convection air conditioning method. .. More specifically, the controller 11 sets the opening degree of the damper 6 to 100% and the opening degree of the damper 5 to 0% so that the cold air from the indoor unit 4 is supplied to the room 1 from the outlet 10. This makes it possible to reach the set temperature faster than when air conditioning is controlled by the radiant air conditioning method.

そして、室温が設定温度（図２においては、２６℃）に所定の閾値以内に近付く、あるいは達すると（時点Ｔ１）、対流空調方式から輻射空調方式に切り替える。より詳細には、コントローラ１１は、ダンパ５の開度を０％から１００％に開制御し、ダンパ６の開度を１００％から０％に閉制御することで、室内機４からの冷気が吹出口９から天井裏２に供給されるようにする。 Then, when the room temperature approaches or reaches the set temperature (26 ° C. in FIG. 2) within a predetermined threshold value (time point T1), the convection air conditioning system is switched to the radiant air conditioning system. More specifically, the controller 11 controls the opening of the damper 5 from 0% to 100% and closes the opening of the damper 6 from 100% to 0%, whereby the cold air from the indoor unit 4 is released. It is supplied from the air outlet 9 to the ceiling 2.

このように、室温と設定温度との偏差が所定の閾値以上に大きい場合、対流空調方式にて空調制御を行い、室温と設定温度との偏差が所定の閾値以内に小さくなると、対流空調方式から輻射空調方式に空調制御を切り替える。 In this way, when the deviation between the room temperature and the set temperature is larger than a predetermined threshold, air conditioning is controlled by the convection air conditioning method, and when the deviation between the room temperature and the set temperature becomes smaller than the predetermined threshold, the convection air conditioning method is used. Switch the air conditioning control to the radiant air conditioning method.

ところで、輻射空調方式で空調設備を動作させる場合、天井に設けられる空気式天井放射パネル（輻射パネル）を天井裏２の冷気にて冷却することになるが、天井裏２の温度や湿度等の関係から、結露が発生する場合が考えられる。そこで、本実施の形態においては、次のようにして結露の発生を防止するようにした。以下、結露の発生を防止する空調制御処理について図３に示すフローチャートを用いて説明する。この処理は、コントローラ１１がプログラムを実行することによって実施され、プログラムが起動されると、停止されるまで処理を繰り返し行う。ただ、例えば１分間隔等適当な時間間隔を開けて実施されるようにしてもよい。 By the way, when operating the air conditioning equipment by the radiant air conditioning method, the pneumatic ceiling radiation panel (radiation panel) provided on the ceiling is cooled by the cold air of the ceiling back 2, but the temperature, humidity, etc. of the ceiling back 2 are affected. Due to the relationship, dew condensation may occur. Therefore, in the present embodiment, the occurrence of dew condensation is prevented as follows. Hereinafter, the air conditioning control process for preventing the occurrence of dew condensation will be described with reference to the flowchart shown in FIG. This process is executed by the controller 11 executing the program, and when the program is started, the process is repeated until it is stopped. However, it may be carried out at an appropriate time interval such as an interval of 1 minute.

温湿度センサ１２は、天井裏２の温度及び湿度を測定しているが、コントローラ１１は、その測定された温度及び湿度を取得し（ステップ１０１）、その測定値から露点温度を算出する（ステップ１０２）。露点温度の算出方法は、ソフトウェアや所定の表等を利用するなど既存の算出方法を用いることにする。算出された露点温度から結露発生の可能性がないようであれば（ステップ１０３でＮ）、上記ステップ１０１に戻る。一方、算出された露点温度から結露発生の可能性がある場合（ステップ１０３でＹ）、コントローラ１１は、次のような結露防止用の空調制御を行う（ステップ１０４）。 The temperature / humidity sensor 12 measures the temperature and humidity of the ceiling back 2, and the controller 11 acquires the measured temperature and humidity (step 101) and calculates the dew point temperature from the measured values (step 101). 102). As the dew point temperature calculation method, an existing calculation method such as using software or a predetermined table will be used. If there is no possibility of dew condensation from the calculated dew point temperature (N in step 103), the process returns to step 101. On the other hand, when there is a possibility of dew condensation from the calculated dew point temperature (Y in step 103), the controller 11 performs the following air conditioning control for dew condensation prevention (step 104).

ここで、結露発生の可能性がある場合というのは、算出した露点温度が結露を発生させる露点温度に達した場合だけに限らない。例えば、現時点では結露を発生させる露点温度に達していなくても、露点温度の遷移から近々に結露を発生させることが予想される場合を含む。 Here, the case where dew condensation may occur is not limited to the case where the calculated dew point temperature reaches the dew point temperature at which dew condensation is generated. For example, this includes the case where dew condensation is expected to occur in the near future from the transition of the dew point temperature even if the dew point temperature at which dew condensation is generated has not been reached at this time.

第１の空調制御の方法として、吹出口９から吹き出す冷気の風速を現時点の風速より強める。風速を強めることで、ほぼ密閉状態の天井裏２の気圧が上昇し、これにより結露が発生しない程度まで露点温度の上昇が見込める。 As the first method of air conditioning control, the wind speed of the cold air blown out from the outlet 9 is made stronger than the current wind speed. By increasing the wind speed, the air pressure in the attic 2 in a nearly sealed state rises, and it is expected that the dew point temperature will rise to the extent that dew condensation does not occur.

第２の空調制御の方法として、室内機４が供給する冷気の温度を上昇させる。現在の冷気の設定温度を上方に修正して天井裏２に供給することで、天井裏２における温度が上昇し、結露が発生しない程度まで露点温度の上昇が見込める。 As a second method of air conditioning control, the temperature of the cold air supplied by the indoor unit 4 is raised. By correcting the current set temperature of cold air upward and supplying it to the attic 2, the temperature in the attic 2 rises, and the dew point temperature can be expected to rise to the extent that dew condensation does not occur.

ところで、第２の空調制御の方法の場合、天井裏２に供給する冷気の設定温度を上げると、天井の輻射パネルの冷却効果を弱めてしまう。これにより、室温を設定温度から上昇させてしまうことになりかねない。そこで、図２においてグラフの中央付近に示すように、室温が上昇し、室温と設定温度との偏差が所定の閾値以上に大きくなった場合（時点Ｔ２）、コントローラ１１は、輻射空調方式から対流空調方式に空調制御を切り替える。 By the way, in the case of the second air conditioning control method, if the set temperature of the cold air supplied to the ceiling 2 is raised, the cooling effect of the radiant panel on the ceiling is weakened. This may cause the room temperature to rise above the set temperature. Therefore, as shown near the center of the graph in FIG. 2, when the room temperature rises and the deviation between the room temperature and the set temperature becomes larger than a predetermined threshold value (time point T2), the controller 11 convection from the radiant air conditioning system. Switch the air conditioning control to the air conditioning method.

このように、天井裏２に供給する冷気の設定温度を上げることで天井裏２における結露の発生を防止し、そして冷気の設定温度を上げることで発生しうる室温上昇という弊害を空調方式の切替えにより防止する。そして、対流空調方式で空調設備を動作させたことで室温が設定温度に達する、若しくは所定の閾値以内に近付くと（時点Ｔ３）、コントローラ１１は、対流空調方式から輻射空調方式に空調制御を切り替える。 In this way, by raising the set temperature of the cold air supplied to the ceiling 2, the occurrence of dew condensation on the ceiling 2 is prevented, and the harmful effect of raising the room temperature that can occur by raising the set temperature of the cold air is switched between the air conditioning methods. To prevent it. Then, when the room temperature reaches the set temperature or approaches a predetermined threshold value by operating the air conditioning equipment in the convection air conditioning system (time point T3), the controller 11 switches the air conditioning control from the convection air conditioning system to the radiant air conditioning system. ..

なお、ここでは、冷気の設定温度を上げることで室温の上昇が発生するため、輻射空調方式から対流空調方式に空調制御を切り替えるようにした。ただ、結露防止のために冷気の設定温度を上げなくても、例えば、真夏日の昼間等では外気温の影響を受けて室温が上昇してしまう場合も考えられる。この場合も上記と同様に輻射空調方式から対流空調方式に空調制御を切り替えることで対処するようにしてもよい。 Here, since the room temperature rises by raising the set temperature of the cold air, the air conditioning control is switched from the radiant air conditioning method to the convection air conditioning method. However, even if the set temperature of cold air is not raised to prevent dew condensation, for example, in the daytime on a midsummer day, the room temperature may rise due to the influence of the outside air temperature. In this case as well, the air conditioning control may be switched from the radiant air conditioning system to the convection air conditioning system in the same manner as described above.

本実施の形態によれば、以上のようにして輻射空調方式にて空調制御を行う場合に発生しうる結露を防止することができる。 According to the present embodiment, it is possible to prevent dew condensation that may occur when the air conditioning is controlled by the radiant air conditioning method as described above.

なお、本実施の形態では、冷房を利用する夏場の場合を例にして説明した。暖房を使用する場合、輻射空調方式では、天井裏２に暖気を供給して天井面を加熱するので結露は発生しにくいが、加湿するなどすると結露が生じる可能性があるかもしれない。この場合は、上記説明した空調制御を適用してもよい。 In addition, in this embodiment, the case of the summer when the air conditioner is used has been described as an example. When heating is used, in the radiant air conditioning system, warm air is supplied to the ceiling 2 to heat the ceiling surface, so that dew condensation is unlikely to occur, but dew condensation may occur when humidified. In this case, the air conditioning control described above may be applied.

また、本実施の形態では、ダンパ５，６の開度を１００％又は０％として空調方式を完全に切り替えるように制御させている。ただ、ダンパ５，６の開度をそれ以外、例えば２０％と８０％、あるいは４０％と１０％と調整して空調制御してもよい。後者の場合、開度が合わせて５０％と半分となるので、省エネ効果をより一層高めることができる。 Further, in the present embodiment, the opening degree of the dampers 5 and 6 is set to 100% or 0%, and the air conditioning system is controlled to be completely switched. However, the opening degree of the dampers 5 and 6 may be adjusted to other than that, for example, 20% and 80%, or 40% and 10% to control the air conditioning. In the latter case, the total opening degree is halved to 50%, so that the energy saving effect can be further enhanced.

また、本実施の形態では、天井裏を冷却する輻射空調方式を採用した場合で説明したが、床下を冷却する輻射空調方式を採用した場合にも適用可能である。 Further, in the present embodiment, the case where the radiant air-conditioning method for cooling the ceiling is adopted has been described, but it can also be applied to the case where the radiant air-conditioning method for cooling the underfloor is adopted.

１ 部屋、２ 天井裏、３ 全熱交換器、４ 室内機、５，６ ダンパ、７ ダクト、８ 外気取入口、９，１０ 吹出口、１１ コントローラ、１２ 温湿度センサ、１３，１５ 還気口、１４ 排気口。
1 room, 2 behind the ceiling, 3 total heat exchanger, 4 indoor unit, 5,6 damper, 7 duct, 8 outside air intake, 9,10 outlet, 11 controller, 12 temperature / humidity sensor, 13,15 return port , 14 Exhaust port.

Claims (2)

部屋の天井裏に設けられた吹出口から冷気を吹き出し部屋の天井面を冷却することによって前記部屋を空調する輻射空調方式にて空調制御を行う空調制御システムにおいて、
前記天井裏における温度及び湿度を測定する測定手段と、
前記測定手段により測定された温度及び湿度から算出した露点温度から結露の発生の可能性があると判断した場合、前記天井裏に対し結露防止用の空調制御を行う空調制御手段と、
を有し、
前記空調制御手段は、前記部屋の空気を対流させることで前記部屋を空調する対流空調方式での空調制御が可能な場合において、前記結露防止用の空調制御として、前記吹出口から吹き出す冷気の設定温度を上昇させることにより前記部屋の温度が設定温度から所定値以上上昇した場合、前記部屋の空調制御を前記輻射空調方式から前記対流空調方式に切り替えることを特徴とする空調制御システム。 In an air conditioning control system that controls air conditioning by a radiant air conditioning method that air-conditions the room by blowing cold air from the air outlet provided behind the ceiling of the room and cooling the ceiling surface of the room.
A measuring means for measuring the temperature and humidity in the attic,
When it is determined from the dew point temperature calculated from the temperature and humidity measured by the measuring means that dew condensation may occur, the air conditioning control means for performing dew condensation prevention air conditioning control on the ceiling back and the air conditioning control means.
Have,
The air conditioning control means sets the cold air blown out from the outlet as the air conditioning control for preventing dew condensation when the air conditioning can be controlled by the convection air conditioning system that air-conditions the room by convection of the air in the room. An air conditioning control system characterized in that when the temperature of the room rises from a set temperature by a predetermined value or more by raising the temperature, the air conditioning control of the room is switched from the radiant air conditioning method to the convection air conditioning method . 前記空調制御手段は、前記部屋の温度が設定温度に所定の閾値以内に近づく、あるいは達すると、前記対流空調方式から前記輻射空調方式に切り替えることを特徴とする請求項1に記載の空調制御システム。 The air conditioning control system according to claim 1, wherein the air conditioning control means switches from the convection air conditioning system to the radiant air conditioning system when the temperature of the room approaches or reaches a set temperature within a predetermined threshold value. ..
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