JP2020165599A

JP2020165599A - Air conditioning system

Info

Publication number: JP2020165599A
Application number: JP2019066924A
Authority: JP
Inventors: 木村　恵一; Keiichi Kimura; 恵一木村; 貴之石田; Takayuki Ishida; 英数佐藤; Hidekazu Sato; 後藤　和也; Kazuya Goto; 和也後藤
Original assignee: Kimura Kohki Co Ltd
Current assignee: Kimura Kohki Co Ltd
Priority date: 2019-03-29
Filing date: 2019-03-29
Publication date: 2020-10-08
Anticipated expiration: 2039-03-29
Also published as: JP6764599B1

Abstract

To provide an air conditioning system capable of saving energy and dispensing with a machine room.SOLUTION: An air conditioning system includes two or more sets of air conditioning apparatuses (A) installed on a ceiling of an air-conditioned space (S). The air conditioning apparatus (A) includes a radiative air conditioner (3) radiating heat of air-conditioning air while sending the air-conditioning air to the air-conditioned space (S) by cooling or heating the air-conditioning air by heat exchange water, and an outside air conditioning unit (4) having a heat pump (8) for cooling or heating outside air by a heat exchange refrigerant, and supplying the outside air to the air-conditioned space (S) through the radiative air conditioner (3). Further a control device (2) is disposed for air-conditioning of the air-conditioned space (S) by using a first operation pattern for operating and stopping the air conditioning apparatus (A) by a set unit, and a second operation pattern for switching a single operation of the outside air conditioning unit (4) and a simultaneous operation of the outside air conditioning unit (4) and the radiative air conditioner (3).SELECTED DRAWING: Figure 3

Description

本発明は空気調和システムに関するものである。 The present invention relates to an air conditioning system.

従来、ビルの空気調和システムは、屋外の冷温水熱源機と屋内の冷温水式空調機とを水配管で接続し、冷温水式空調機から空調用空気をダクトを使って室内に供給し、室内の二酸化炭素が基準値を超えないように外気を導入する構成となっている。あるいは、冷温水を使わずに、ヒートポンプ式の室外機と室内機を冷媒配管で接続した構成となっている。 Conventionally, the air conditioning system of a building connects an outdoor cold / hot water heat source unit and an indoor cold / hot water air conditioner with a water pipe, and supplies air conditioning air from the cold / hot water air conditioner to the room using a duct. The structure is such that outside air is introduced so that the carbon dioxide in the room does not exceed the standard value. Alternatively, the heat pump type outdoor unit and the indoor unit are connected by a refrigerant pipe without using cold / hot water.

特開２０１６−２１７５６１号公報Japanese Unexamined Patent Publication No. 2016-217561

冷温水式の場合、前記空調機は床面設置のため、空調機専用の機械室がビルに必要でレンタブル比が低下する問題がある。さらに、冷温水式空調機で冷房運転と暖房運転を同時にするには、４管式と呼ばれる冷水と温水を同時に冷温水式空調機へ送る熱源設備が必要で、設備コスト及び運転コストが高くなる。また、２管式と呼ばれる冷水と温水を切換えて冷温水式空調機へ送る熱源設備では、冷房運転と暖房運転を同時にすることができず快適性が損なわれる問題がある。 In the case of the cold / hot water type, since the air conditioner is installed on the floor, there is a problem that a machine room dedicated to the air conditioner is required in the building and the rentable ratio is lowered. Furthermore, in order to simultaneously perform cooling operation and heating operation with a cold / hot water type air conditioner, a heat source facility called a 4-tube type that simultaneously sends cold water and hot water to the cold / hot water type air conditioner is required, which increases the equipment cost and operating cost. .. Further, in a heat source facility called a two-tube type that switches between cold water and hot water and sends them to a cold / hot water type air conditioner, there is a problem that the cooling operation and the heating operation cannot be performed at the same time, and the comfort is impaired.

本発明は上記課題を解決するため、被空調空間の天井に設置される２組以上の空調機器を備え、前記空調機器は、空調用空気を熱交換用水にて冷却又は加熱して前記被空調空間に前記空調用空気を出しつつ前記空調用空気の熱を放射する放射空調機と、熱交換用冷媒にて外気を冷却又は加熱するヒートポンプを有すると共に前記外気を前記放射空調機を経由して前記被空調空間に供給する外調機と、を備え、前記空調機器の運転と停止を組単位で行う第１の運転パターンと前記外調機の単体運転と前記外調機及び前記放射空調機の同時運転とを切換える第２の運転パターンとを用いて前記被空調空間を空調する制御装置を、備えたことを最も主要な特徴とする。 In order to solve the above problems, the present invention includes two or more sets of air-conditioning equipment installed on the ceiling of the air-conditioned space, and the air-conditioning equipment cools or heats the air-conditioning air with heat exchange water to cool or heat the air-conditioned air. It has a radiation air conditioner that radiates the heat of the air conditioning air while discharging the air conditioning air to the space, and a heat pump that cools or heats the outside air with a heat exchange refrigerant, and also allows the outside air to pass through the radiation air conditioner. A first operation pattern in which an external air conditioner for supplying to the air-conditioned space is provided and the air conditioning equipment is operated and stopped in groups, a single operation of the external air conditioner, the external air conditioner, and the radiation air conditioner. The most important feature is that the control device for air-conditioning the air-conditioned space by using the second operation pattern for switching between the simultaneous operation and the simultaneous operation is provided.

請求項１の発明によれば、
（１）空調機器を全て天井に設置するので、機械室が不要で施工の省力化が図れて、レンタブル比を高めることができる。
（２）第１の運転パターンを用いることで、中間期などの低空調負荷時にも空調能力の過不足が発生せず、無駄なエネルギー消費がなくなって快適性と省エネ性が向上する。
（３）冷房と暖房の両方が要求される中間期などに、第２の運転パターンを用いてヒートポンプ式の外調機単体で冷房運転と暖房運転を自由に切換えできるので快適性が向上する。しかも、外気冷房ができかつ放射空調機の熱源機を停止できるので省エネ性が向上する。
（４）外調機から放射空調機を経由して２段階で空気を調整するので外調機単体よりも除湿効果や加湿効果が優れる。
（５）２管式の熱源設備と、ヒートポンプ式の外調機を設けるだけでよいので、４管式の熱源設備に比べて、設備及び運転コストを低減できる。
（６）熱放射の作用によりドラフト感や温度ムラがなく被空調空間の快適性が向上する。
請求項２の発明によれば、第３の運転パターンが加わることで被空調空間の温度及び湿度の制御範囲が拡がり、きめ細かな空調が行える。
請求項３の発明によれば、第４の運転パターンにより空調機器の運転時間を平均化して長寿命化を図れる。 According to the invention of claim 1.
(1) Since all the air conditioners are installed on the ceiling, no machine room is required, labor saving in construction can be achieved, and the rentable ratio can be increased.
(2) By using the first operation pattern, excess or deficiency of air conditioning capacity does not occur even during a low air conditioning load such as an intermediate period, wasteful energy consumption is eliminated, and comfort and energy saving are improved.
(3) In the intermediate period when both cooling and heating are required, the second operation pattern can be used to freely switch between cooling operation and heating operation with the heat pump type external air conditioner alone, which improves comfort. Moreover, since the outside air can be cooled and the heat source of the radiant air conditioner can be stopped, energy saving is improved.
(4) Since the air is adjusted in two stages from the external air conditioner via the radiation air conditioner, the dehumidifying effect and the humidifying effect are superior to those of the external air conditioner alone.
(5) Since it is only necessary to provide a 2-tube type heat source equipment and a heat pump type external conditioner, the equipment and operating cost can be reduced as compared with the 4-tube type heat source equipment.
(6) Due to the action of heat radiation, there is no draft feeling or temperature unevenness, and the comfort of the air-conditioned space is improved.
According to the invention of claim 2, the control range of the temperature and humidity of the air-conditioned space is expanded by adding the third operation pattern, and fine air conditioning can be performed.
According to the third aspect of the present invention, the operating time of the air conditioner can be averaged to extend the service life according to the fourth operation pattern.

請求項４の発明によれば、
（１）冷媒配管が不要な一体形ヒートポンプを備えた外調機なので、セパレートタイプのヒートポンプ式空調機と比べて設備コスト及び運転コストを低減できる。
（２）外気と比べてエクセルギーの高い還気を熱源として利用するので、省エネ性の向上とデフロスト運転の軽減を図れる。
（３）外調機で換気することができるので、別個に換気装置を設置せずに済み設備コストを低減できる。
（４）外調機全体を天井から降ろすことなく、スライド機構にて外調機の底面からヒートポンプを出し入れできるのでメンテナンスが容易である。 According to the invention of claim 4.
(1) Since the external air conditioner is equipped with an integrated heat pump that does not require refrigerant piping, equipment costs and operating costs can be reduced as compared with a separate type heat pump type air conditioner.
(2) Since the return air, which has a higher exergy than the outside air, is used as a heat source, it is possible to improve energy saving and reduce defrost operation.
(3) Since it is possible to ventilate with an external air conditioner, it is not necessary to install a separate ventilation device, and the equipment cost can be reduced.
(4) Maintenance is easy because the heat pump can be taken in and out from the bottom of the external air conditioner by the slide mechanism without lowering the entire external air conditioner from the ceiling.

請求項５の発明によれば、
（１）２つのチャンバ部及び気流調節部を備えた簡単な構造なのでコストダウンでき、軽量化を図れて施工やメンテナンスが容易となる。
（２）気流調節部によって空調用空気の風速及び分布を調節して、第２チャンバ部の空調用空気の風量分布、ひいては被空調空間への空調用空気の放出と放射を均等化できる。
請求項６の発明によれば、
（１）第２貫孔群の開口面積を第１貫孔群の開口面積よりも大きくすることで、２段階で静圧を高めながら徐々に風速を落として、第１チャンバ部と第２チャンバ部の空間全体に空調用空気を行き渡らせることができる。そのため、被空調空間への空調用空気の放出と放射を均等化でき、ドラフト感や温度ムラのない快適空調を行える。
（２）２つのチャンバ部に貫孔群を形成する簡単な構造なのでコストダウンでき、軽量化を図れて施工やメンテナンスが容易となる。
請求項７の発明によれば、第１チャンバ部が風上側から風下側に向かって狭めてあるので、空調用空気の風速が風上側から風下側に向かって高まって、第１チャンバ部と第２チャンバ部の空間全体に空調用空気を行き渡らせることができる。そのため、被空調空間への空調用空気の放出と放射を均等化でき、ドラフト感や温度ムラのない快適空調を行える。 According to the invention of claim 5.
(1) Since it has a simple structure equipped with two chambers and an airflow adjusting part, the cost can be reduced, the weight can be reduced, and the construction and maintenance can be facilitated.
(2) The air-conditioning air velocity and distribution can be adjusted by the air-conditioning control unit to equalize the air-conditioning air volume distribution in the second chamber and, by extension, the release and radiation of the air-conditioning air to the air-conditioned space.
According to the invention of claim 6.
(1) By making the opening area of the second through-hole group larger than the opening area of the first through-hole group, the wind speed is gradually reduced while increasing the static pressure in two steps, and the first chamber portion and the second chamber Air conditioning air can be distributed throughout the space of the section. Therefore, it is possible to equalize the emission and radiation of air conditioning air to the air-conditioned space, and it is possible to perform comfortable air conditioning without a draft feeling or temperature unevenness.
(2) Since it has a simple structure in which through holes are formed in the two chambers, the cost can be reduced, the weight can be reduced, and the construction and maintenance can be facilitated.
According to the invention of claim 7, since the first chamber portion is narrowed from the windward side to the leeward side, the wind speed of the air conditioning air increases from the windward side to the leeward side, so that the first chamber portion and the first chamber portion and the first chamber portion are narrowed. 2 Air conditioning air can be distributed throughout the space of the chamber portion. Therefore, it is possible to equalize the emission and radiation of air conditioning air to the air-conditioned space, and it is possible to perform comfortable air conditioning without a draft feeling or temperature unevenness.

本発明の空気調和システムの簡略平面図である。It is a simplified plan view of the air conditioning system of this invention. 図１に示す空気調和システムの簡略側面図である。It is a simplified side view of the air conditioning system shown in FIG. 外調機と放射空調機と制御装置の簡略説明図である。It is a simplified explanatory view of an external air conditioner, a radiant air conditioner, and a control device. 外調機の側面断面図である。It is a side sectional view of an external conditioner. 熱交換器の簡略説明図である。It is a simplified explanatory drawing of a heat exchanger. 放射空調機の底面側斜視図である。It is a bottom side perspective view of a radiant air conditioner. 図６に示す放射空調機の底面図である。It is a bottom view of the radiant air conditioner shown in FIG. 図７に示す放射空調機のＸ−Ｘ断面図である。It is XX sectional view of the radiant air conditioner shown in FIG. 図８に示す放射空調機のＹ−Ｙ断面図である。It is a YY sectional view of the radiant air conditioner shown in FIG. 図８に示す放射空調機のＺ−Ｚ断面図である。It is a ZZ cross-sectional view of the radiant air conditioner shown in FIG.

図１から図５は、本発明の空気調和システムの一実施例を示している。この空気調和システムは、ビルの室内などの被空調空間Ｓの天井に設置される２組以上の空調機器Ａと、空調機器Ａと屋外を連通連結するダクト１と、制御装置２と、を備えている。空調機器Ａは、外気や還気などの空調用空気を熱交換用水にて冷却又は加熱して被空調空間Ｓに空調用空気を出しつつ空調用空気の熱を放射する放射空調機３と、熱交換用冷媒にて外気を冷却又は加熱するヒートポンプ８を有すると共に外気を放射空調機３を経由して外気のみ又は外気と還気の混合空気を被空調空間Ｓに供給する外調機４と、を備え、複数の放射空調機３で空調機グループＢを構成している。 1 to 5 show an embodiment of the air conditioning system of the present invention. This air conditioning system includes two or more sets of air conditioning equipment A installed on the ceiling of the air-conditioned space S such as the interior of a building, a duct 1 for connecting the air conditioning equipment A and the outside, and a control device 2. ing. The air conditioning device A is a radiation air conditioner 3 that radiates the heat of the air conditioning air while cooling or heating the air conditioning air such as the outside air and the return air with the heat exchange water and discharging the air conditioning air to the air-conditioned space S. An external air conditioner 4 having a heat pump 8 that cools or heats the outside air with a heat exchange refrigerant and supplies the outside air only to the outside air or a mixed air of the outside air and the return air to the air-conditioned space S via the radiation air conditioner 3. , And a plurality of radiation air conditioners 3 constitute an air conditioner group B.

図２に示すように、被空調空間Ｓを天井板５で仕切って天井懐を設け、天井チャンバ―として利用する。この天井懐に空調機器Ａを設置する。天井板５には、還気取入口６と、放射空調機３及び外調機４を保守するための点検口（図示省略）と、を設置する。図１に示すように、被空調空間Ｓの外側の廊下には、屋外と通じるダクト１と、放射空調機３と図示省略の熱源設備とに熱交換用水を循環させる水配管７と、を設置する。図１と図２においてダクト１は太い実線で簡略化して示す。また、各図の太い点線の矢印は空気の流れを示す。 As shown in FIG. 2, the air-conditioned space S is partitioned by a ceiling plate 5 to provide a ceiling pocket, which is used as a ceiling chamber. An air conditioner A is installed in this ceiling pocket. The ceiling plate 5 is provided with a return air intake port 6 and an inspection port (not shown) for maintaining the radiant air conditioner 3 and the external air conditioner 4. As shown in FIG. 1, in the corridor outside the air-conditioned space S, a duct 1 communicating with the outside and a water pipe 7 for circulating heat exchange water between the radiant air conditioner 3 and a heat source facility (not shown) are installed. To do. In FIGS. 1 and 2, the duct 1 is simplified by a thick solid line. The thick dotted arrows in each figure indicate the air flow.

図３と図４に示すように、外調機４は、熱交換用冷媒にて外気（ＯＡ）を冷却又は加熱するヒートポンプ８と、外気を加湿する外調用加湿器９と、外気を外調機４から放射空調機３に供給する外気用給気ファン１０と、還気（ＲＡ）を屋外に排気（ＥＡ）する熱源空気用排気ファン１１と、これらを内装するケーシング１２と、ケーシング１２の底部からヒートポンプ８を出し入れするためのスライド機構１３と、を備えており、被空調空間Ｓの還気を熱源空気として使用する。 As shown in FIGS. 3 and 4, the external air conditioner 4 includes a heat pump 8 that cools or heats the outside air (OA) with a heat exchange refrigerant, an external air conditioning humidifier 9 that humidifies the outside air, and an outside air conditioner. The outside air supply fan 10 supplied from the machine 4 to the radiation air conditioner 3, the heat source air exhaust fan 11 for exhausting the return air (RA) to the outside (EA), the casing 12 for incorporating these, and the casing 12 A slide mechanism 13 for moving the heat pump 8 in and out from the bottom is provided, and the return air of the air-conditioned space S is used as the heat source air.

スライド機構１３は、ヒートポンプ８を取り付けたフレーム１４と、フレーム１４を上下移動させるダンパー１５と、を備える。ダンパー１５は、ケーシング１２とフレーム１４に跨って設ける。外調機４の保守点検は、ケーシング１２の底面の開口部を閉じている外装板１６を外し、スライド機構１３を用いてフレーム１４と共にヒートポンプ８を降ろして行う。ダンパー１５は、ガスやオイルの圧力で伸縮して作業者の身体的負担を軽減する。 The slide mechanism 13 includes a frame 14 to which the heat pump 8 is attached, and a damper 15 for moving the frame 14 up and down. The damper 15 is provided so as to straddle the casing 12 and the frame 14. The maintenance and inspection of the external air conditioner 4 is performed by removing the exterior plate 16 that closes the opening on the bottom surface of the casing 12, and lowering the heat pump 8 together with the frame 14 using the slide mechanism 13. The damper 15 expands and contracts due to the pressure of gas or oil to reduce the physical burden on the operator.

図１と図３に示すように、ヒートポンプ８は、外気用熱交換器１７と熱源空気用熱交換器１８と圧縮機１９とを有する冷媒配管工事が不要な一体形とする。外気用給気ファン１０は、屋外からダクト１を介して外気を取込んで外気用熱交換器１７を通過させ、外調機４からダクト１を介して放射空調機３に送風する。熱源空気用排気ファン１１は、被空調空間Ｓから還気取入口６及び天井チャンバ―を介して還気を取込んで熱源空気用熱交換器１８を通過させ、外調機４からダクト１を介して屋外に排気する。 As shown in FIGS. 1 and 3, the heat pump 8 is an integrated type having a heat exchanger 17 for outside air, a heat exchanger 18 for heat source air, and a compressor 19 which does not require refrigerant piping work. The outside air supply fan 10 takes in outside air from the outside through the duct 1, passes it through the outside air heat exchanger 17, and blows air from the external air conditioner 4 to the radiant air conditioner 3 through the duct 1. The heat source air exhaust fan 11 takes in the return air from the air-conditioned space S through the return air intake port 6 and the ceiling chamber, passes it through the heat source air heat exchanger 18, and passes the duct 1 from the external air conditioner 4. Exhaust to the outside through.

ヒートポンプ８は、冷媒に対して圧縮・凝縮・膨張・蒸発の工程順を繰返し、この冷媒と熱交換する空気に対して冷媒蒸発工程で吸熱を冷媒凝縮工程で放熱を各々行うものである。ヒートポンプ８は、冷媒の蒸発工程と凝縮工程であって互いに異なる工程を担う外気用熱交換器１７及び熱源空気用熱交換器１８と、冷媒を圧縮して搬送する圧縮機１９と、冷媒を膨張させる膨張弁等の減圧機構２０と、外気用熱交換器１７及び熱源空気用熱交換器１８の蒸発工程と凝縮工程を切換えるバルブ等の切換機構２１と、を少なくとも備え、これらを冷媒が循環するように配管接続して成る。 The heat pump 8 repeats the steps of compression, condensation, expansion, and evaporation of the refrigerant, and absorbs heat from the air that exchanges heat with the refrigerant in the refrigerant evaporation step and dissipates heat in the refrigerant condensation step. The heat pump 8 expands the refrigerant, the outside air heat exchanger 17 and the heat source air heat exchanger 18, the compressor 19 for compressing and transporting the refrigerant, and the refrigerant 19 for compressing and transporting the refrigerant. It is provided with at least a pressure reducing mechanism 20 such as an expansion valve to be operated, and a switching mechanism 21 such as a valve for switching between the evaporation process and the condensation process of the heat exchanger 17 for outside air and the heat exchanger 18 for heat source air, and the refrigerant circulates therein. It consists of connecting pipes like this.

図３と図５に示すように、外気用熱交換器１７は、公知のプレートフィンコイルと同様に、空気が通過する多数のプレート状の伝熱板２２の群と、伝熱板２２に接続された多数の伝熱管２３の群と、を備える。この伝熱管２３内を流れる冷媒と、外気用熱交換器１７の通過空気とが、伝熱管２３及び伝熱板２２を介して熱交換する。伝熱管２３は、外周を楕円形にするのが好ましいが円形でもよい。外気用熱交換器１７で空気を冷却又は加熱する能力の増減は、図示省略のインバータを用いて圧縮機１９の回転数を変えることで調整する。熱源空気用熱交換器１８も外気用熱交換器１７と同様に構成する。 As shown in FIGS. 3 and 5, the heat exchanger 17 for outside air is connected to a group of a large number of plate-shaped heat transfer plates 22 through which air passes and the heat transfer plates 22, similarly to a known plate fin coil. A large number of heat transfer tubes 23 are provided. The refrigerant flowing in the heat transfer tube 23 and the passing air of the outside air heat exchanger 17 exchange heat via the heat transfer tube 23 and the heat transfer plate 22. The heat transfer tube 23 preferably has an elliptical outer circumference, but may be circular. The increase or decrease in the ability to cool or heat the air in the outside air heat exchanger 17 is adjusted by changing the rotation speed of the compressor 19 using an inverter (not shown). The heat source air heat exchanger 18 has the same configuration as the outside air heat exchanger 17.

図２から図１０に示すように、放射空調機３は、外調機４から供給された外気（ＯＡ）と被空調空間Ｓの還気（ＲＡ）とを熱交換用水にて冷却又は加熱する空調用熱交換器２４と、放射ユニット２５と、外気と還気を放射ユニット２５を介して給気（ＳＡ）する空調用給気ファン２６と、ドレンパン２７と、これらを内装するケーシング２８と、を備えている。 As shown in FIGS. 2 to 10, the radiation air conditioner 3 cools or heats the outside air (OA) supplied from the external air conditioner 4 and the return air (RA) of the air-conditioned space S with heat exchange water. An air-conditioning heat exchanger 24, a radiation unit 25, an air-conditioning air supply fan 26 that supplies (SA) outside air and return air via the radiation unit 25, a drain pan 27, a casing 28 containing these, and a casing 28 containing these. It has.

空調用給気ファン２６は、外調機４から供給された外気と、被空調空間Ｓから還気取入口６及び天井チャンバ―を介して取込んだ還気と、を空調用熱交換器２４に通過させ、放射ユニット２５に送風する。空調用熱交換器２４は、外気用熱交換器１７と同じ構造で、伝熱管３０内を流れる熱交換用水と空調用熱交換器２４の通過空気とが、伝熱管３０及び伝熱板２９を介して熱交換する。空調用熱交換器２４で空気を冷却又は加熱する能力の増減は、水配管７に設けた電動弁３１を稼働させて伝熱管３０内を流れる熱交換用水の流量を変えることで調整する。電動弁３１は各々の放射空調機３に設ける。 The air-conditioning air supply fan 26 connects the outside air supplied from the external air conditioner 4 and the return air taken in from the air-conditioned space S through the return air intake port 6 and the ceiling chamber to the air-conditioning heat exchanger 24. And blows air to the radiation unit 25. The air-conditioning heat exchanger 24 has the same structure as the outside air heat exchanger 17, and the heat exchange water flowing in the heat transfer tube 30 and the passing air of the air-conditioning heat exchanger 24 form the heat transfer tube 30 and the heat transfer plate 29. Heat exchange through. The increase or decrease in the ability to cool or heat air in the air conditioning heat exchanger 24 is adjusted by operating the electric valve 31 provided in the water pipe 7 and changing the flow rate of the heat exchange water flowing in the heat transfer pipe 30. The electric valve 31 is provided in each radiant air conditioner 3.

放射ユニット２５は、空調用空気が流れる第１チャンバ部３２と、第１チャンバ部３２から入った空調用空気を被空調空間Ｓに出しつつ空調用空気の熱を放射する第２チャンバ部３３と、第１チャンバ部３２から第２チャンバ部３３に出る空調用空気の風速及び分布を調節する気流調節部３４と、を備えている。放射空調機３は、天井板５の開口部から第２チャンバ部３３の底面を被空調空間Ｓに向けた状態で設置する。 The radiation unit 25 includes a first chamber portion 32 through which air conditioning air flows, and a second chamber portion 33 that radiates the heat of the air conditioning air while discharging the air conditioning air entering from the first chamber portion 32 to the air-conditioned space S. The air-conditioning air adjusting unit 34 for adjusting the air velocity and distribution of the air conditioning air emitted from the first chamber unit 32 to the second chamber unit 33 is provided. The radiant air conditioner 3 is installed with the bottom surface of the second chamber portion 33 facing the air-conditioned space S from the opening of the ceiling plate 5.

気流調節部３４は、空調用空気を第２チャンバ部３３に出す第１貫孔３５の群を備え、第２チャンバ部３３は、空調用空気を被空調空間Ｓに出す第２貫孔３６の群を備えている。第１チャンバ部３２は、第２チャンバ部３３に接して第２チャンバ部３３に空調用空気を出す平板形状の第１通気部３７を、備えている。この第１通気部３７に第１貫孔３５の群を形成する。第１チャンバ部３２の空調用空気が通過する断面積（図８の切断面と平行な方向の面積）は、風上側から風下側に向かって狭める。 The air-conditioning control unit 34 includes a group of first through-holes 35 that emit air-conditioning air to the second chamber portion 33, and the second chamber portion 33 is a second through-hole 36 that emits air-conditioning air to the air-conditioned space S. It has a group. The first chamber portion 32 includes a flat plate-shaped first ventilation portion 37 that is in contact with the second chamber portion 33 and emits air for air conditioning to the second chamber portion 33. A group of first through holes 35 is formed in the first ventilation portion 37. The cross-sectional area (area in the direction parallel to the cut surface of FIG. 8) through which the air conditioning air of the first chamber portion 32 passes is narrowed from the windward side to the leeward side.

第２チャンバ部３３は、被空調空間Ｓに接して被空調空間Ｓに空調用空気を出す平板形状の第２通気部３８と、蓄熱部３９と、第２通気部３８及び蓄熱部３９を取付ける鍔付の枠体４０と、を備えている。この第２通気部３８に第２貫孔３６の群を形成する。第２貫孔３６の群の開口面積は第１貫孔３５の群の開口面積よりも大きく設定する。第１貫孔３５と第２貫孔３６の形状は、真円、楕円、長穴、細溝など各種の形状に変更するも自由である。 The second chamber portion 33 attaches a flat plate-shaped second ventilation portion 38, a heat storage portion 39, a second ventilation portion 38, and a heat storage portion 39 that are in contact with the air-conditioned space S and emit air-conditioning air to the air-conditioned space S. It is provided with a frame 40 with a flange. A group of second through holes 36 is formed in the second ventilation portion 38. The opening area of the group of the second through hole 36 is set to be larger than the opening area of the group of the first through hole 35. The shapes of the first through hole 35 and the second through hole 36 can be freely changed to various shapes such as a perfect circle, an ellipse, an elongated hole, and a narrow groove.

蓄熱部３９は、空調用空気が通る隙間をあけて配置されると共に空調用空気の熱を蓄めて放射するプレート４１の群にて構成する。プレート４１と第２通気部３８は、熱伝達及び熱放射率が高いアルミ等を用いる。このプレート４１の群を空調用空気が分流拡散しながら整流状に通過して第２通気部３８の第２貫孔３６から被空調空間Ｓへ出る。空調用空気の熱はプレート４１の群と第２通気部３８に熱伝達し、第２貫孔３６の群を通してプレート４１の群から、及び、第２通気部３８から、被空調空間Ｓへ放射される。 The heat storage unit 39 is arranged with a gap through which the air conditioning air passes, and is composed of a group of plates 41 that store and radiate the heat of the air conditioning air. Aluminum or the like having high heat transfer and heat emissivity is used for the plate 41 and the second ventilation portion 38. The air-conditioning air flows and diffuses through the group of plates 41 in a rectified manner, and exits from the second through hole 36 of the second ventilation portion 38 to the air-conditioned space S. The heat of the air conditioning air is transferred to the group of the plates 41 and the second ventilation portion 38, and is radiated from the group of the plates 41 through the group of the second through holes 36 and from the second ventilation portion 38 to the air-conditioned space S. Will be done.

第１チャンバ部３２及び第２チャンバ部３３は、厚みが薄い箱形に形成し、厚みの方向へ第１チャンバ部３２と第２チャンバ部３３を隣り合わせて設ける。図例では、第１チャンバ部３２と第２チャンバ部３３は長方形の扁平形状としたが細長、真四角、丸など各種の扁平形状に変更するも自由である。 The first chamber portion 32 and the second chamber portion 33 are formed in a thin box shape, and the first chamber portion 32 and the second chamber portion 33 are provided side by side in the direction of the thickness. In the illustrated example, the first chamber portion 32 and the second chamber portion 33 have a rectangular flat shape, but they can be freely changed to various flat shapes such as an elongated shape, a square shape, and a circle shape.

制御装置２は、被空調空間Ｓの空気（還気）や空調機器Ａから吹出す空気の温度及び湿度を検出する検出部５０と、被空調空間Ｓの温度及び湿度を設定する設定部５１と、空調機器Ａのファン１０、１１、２６の風量を制御する風量制御部５２と、空調機器Ａの加湿器９の加湿量を制御する加湿制御部５３と、空調機器Ａで外気や還気を冷却又は加熱する能力を制御する能力制御部５４と、検出部５０で検出した被空調空間Ｓの空気の温度及び湿度が設定部５１で設定した被空調空間Ｓの温度及び湿度に達するように風量制御部５２と加湿制御部５３と能力制御部５４に指令を送る空調制御部５５と、を備えている。制御装置２は、マイクロプロセッサ、各種センサー、その他の制御機器にて構成する。 The control device 2 includes a detection unit 50 that detects the temperature and humidity of the air (return air) in the air-conditioned space S and the air blown out from the air-conditioning device A, and a setting unit 51 that sets the temperature and humidity of the air-conditioned space S. , The air volume control unit 52 that controls the air volume of the fans 10, 11 and 26 of the air conditioning device A, the humidification control unit 53 that controls the humidifying amount of the humidifier 9 of the air conditioning device A, and the air conditioning device A to control the outside air and return air. The air volume so that the temperature and humidity of the air in the air-conditioned space S detected by the ability control unit 54 and the detection unit 50 that control the cooling or heating capacity reach the temperature and humidity of the air-conditioned space S set by the setting unit 51. It includes a control unit 52, a humidification control unit 53, and an air conditioning control unit 55 that sends a command to the capacity control unit 54. The control device 2 is composed of a microprocessor, various sensors, and other control devices.

空調制御部５５は、空調機器Ａの運転と停止を組単位で行う第１の運転パターンと、外調機４の単体運転と外調機４及び放射空調機３の同時運転とを切換える第２の運転パターンと、放射空調機３の運転と停止を空調機グループ単位で行う第３の運転パターンと、運転中の空調機器Ａと停止中の空調機器Ａを交替させる第４の運転パターンと、外調機４と放射空調機３の一方又は両方の空調能力を増減させる第５の運転パターンと、を有しており、第１から第５の運転パターンを切換え又は組合せて被空調空間Ｓを空調する。 The air conditioner control unit 55 switches between a first operation pattern in which the air conditioner A is operated and stopped in groups, and a second operation in which the external air conditioner 4 is operated independently and the external air conditioner 4 and the radiation air conditioner 3 are simultaneously operated. The operation pattern of, the third operation pattern in which the operation and stop of the radiation air conditioner 3 are performed in the air conditioner group unit, and the fourth operation pattern in which the operating air conditioner A and the stopped air conditioner A are replaced. It has a fifth operation pattern that increases or decreases the air conditioning capacity of one or both of the external air conditioner 4 and the radiation air conditioner 3, and switches or combines the first to fifth operation patterns to create an air-conditioned space S. Air condition.

たとえば、被空調空間Ｓの空気の温度及び湿度と、予め設定した温度及び湿度と、の差（空調負荷）が減少するにしたがって、空調機器Ａの運転パターンを第１、第２、第４、第５の順番に切換えて空調能力を減少させる。第１と第２と第４と第５の運転パターンを組合せた場合は、被空調空間Ｓの温度及び湿度の制御範囲が拡がり、きめ細かな空調が行える。これらの運転パターンに、第４の運転パターンを追加で組合せた場合は、特定の空調機器Ａだけに運転が偏らなくなる。第３の運転パターンは、空調機グループＢに熱交換用水を循環させる水配管７の枝管毎に電動二方弁４２を設け、これを稼働させて行う。 For example, as the difference (air conditioning load) between the temperature and humidity of the air in the air-conditioned space S and the preset temperature and humidity decreases, the operation patterns of the air-conditioning device A are changed to the first, second, fourth, and so on. The air conditioning capacity is reduced by switching in the fifth order. When the first, second, fourth, and fifth operation patterns are combined, the control range of the temperature and humidity of the air-conditioned space S is expanded, and fine air conditioning can be performed. When the fourth operation pattern is additionally combined with these operation patterns, the operation is not biased only to the specific air conditioner A. The third operation pattern is performed by providing an electric two-way valve 42 for each branch pipe of the water pipe 7 for circulating heat exchange water in the air conditioner group B and operating the electric two-way valve 42.

なお、本発明は上述の実施例に限定されない。設計空調能力に応じて空調機器Ａの組数を増減してもよく、必要な空調能力を超える場合は空調機器Ａの適宜の組の外調機４を省略するも自由である。また、天井板５を省略した状態の天井に空調機器Ａを設置してもよい。 The present invention is not limited to the above-mentioned examples. The number of sets of the air conditioner A may be increased or decreased according to the design air conditioning capacity, and if the required air conditioning capacity is exceeded, the external air conditioner 4 of the appropriate set of the air conditioner A may be omitted. Further, the air conditioner A may be installed on the ceiling with the ceiling plate 5 omitted.

２制御装置
３放射空調機
４外調機
８ヒートポンプ
１２ケーシング
１３スライド機構
１７外気用熱交換器
１８熱源空気用熱交換器
１９圧縮機
２４空調用熱交換器
２５放射ユニット
２６空調用給気ファン
３２第１チャンバ部
３３第２チャンバ部
３４気流調節部
３５第１貫孔
３６第２貫孔
Ａ空調機器
Ｂ空調機グループ
Ｓ被空調空間 2 Control device 3 Radiation air conditioner 4 External conditioner 8 Heat pump 12 Casing 13 Slide mechanism 17 Outside air heat exchanger 18 Heat source air heat exchanger 19 Compressor 24 Air conditioner heat exchanger 25 Radiation unit 26 Air conditioner air supply fan 32 1st chamber 33 2nd chamber 34 Air flow control 35 1st through hole 36 2nd through hole A Air conditioner B Air conditioner group S Air-conditioned space

請求項１の発明によれば、
（１）空調機器を全て天井に設置するので、機械室が不要で施工の省力化が図れて、レンタブル比を高めることができる。
（２）第１から第５の運転パターンを切換え又は組合せることで被空調空間の温度及び湿度の制御範囲が拡がり、きめ細かな空調が行える。中間期などの低空調負荷時にも空調能力の過不足が発生せず、無駄なエネルギー消費がなくなって快適性と省エネ性が向上する。
（３）冷房と暖房の両方が要求される中間期などに、第２の運転パターンを用いてヒートポンプ式の外調機単体で冷房運転と暖房運転を自由に切換えできるので快適性が向上する。しかも、外気冷房ができかつ放射空調機の熱源機を停止できるので省エネ性が向上する。また、第４の運転パターンにより空調機器の運転時間を平均化して長寿命化を図れる。
（４）外調機から放射空調機を経由して２段階で空気を調整するので外調機単体よりも除湿効果や加湿効果が優れる。
（５）２管式の熱源設備と、ヒートポンプ式の外調機を設けるだけでよいので、４管式の熱源設備に比べて、設備及び運転コストを低減できる。
（６）熱放射の作用によりドラフト感や温度ムラがなく被空調空間の快適性が向上する。
請求項２の発明によれば、放射空調機が２つのチャンバ部を備えた簡単な構造なのでコストダウンでき、軽量化を図れて施工やメンテナンスが容易となる。 According to the invention of claim 1.
(1) Since all the air conditioners are installed on the ceiling, no machine room is required, labor saving in construction can be achieved, and the rentable ratio can be increased.
(2) By switching or combining the first to fifth operation patterns, the control range of the temperature and humidity of the air-conditioned space is expanded, and fine air conditioning can be performed. Even during a low air-conditioning load such as in the middle period, excess or deficiency of air-conditioning capacity does not occur, wasteful energy consumption is eliminated, and comfort and energy saving are improved.
(3) In the intermediate period when both cooling and heating are required, the second operation pattern can be used to freely switch between cooling operation and heating operation with the heat pump type external air conditioner alone, which improves comfort. Moreover, since the outside air can be cooled and the heat source of the radiant air conditioner can be stopped, energy saving is improved. Further, the operation time of the air conditioner can be averaged by the fourth operation pattern to extend the life.
(4) Since the air is adjusted in two stages from the external air conditioner via the radiation air conditioner, the dehumidifying effect and the humidifying effect are superior to those of the external air conditioner alone.
(5) Since it is only necessary to provide a 2-tube type heat source equipment and a heat pump type external conditioner, the equipment and operating cost can be reduced as compared with the 4-tube type heat source equipment.
(6) Due to the action of heat radiation, there is no draft feeling or temperature unevenness, and the comfort of the air-conditioned space is improved.
According to the second aspect of the present invention, since the radiant air conditioner has a simple structure including two chamber portions, the cost can be reduced, the weight can be reduced, and the construction and maintenance can be facilitated.

たとえば、被空調空間Ｓの空気の温度及び湿度と、予め設定した温度及び湿度と、の差（空調負荷）が減少するにしたがって、空調機器Ａの運転パターンを第１、第２、第３、第５の順番に切換えて空調能力を減少させる。第１と第２と第３と第５の運転パターンを組合せた場合は、被空調空間Ｓの温度及び湿度の制御範囲が拡がり、きめ細かな空調が行える。これらの運転パターンに、第４の運転パターンを追加で組合せた場合は、特定の空調機器Ａだけに運転が偏らなくなる。第３の運転パターンは、空調機グループＢに熱交換用水を循環させる水配管７の枝管毎に電動二方弁４２を設け、これを稼働させて行う。 For example, as the difference (air conditioning load) between the temperature and humidity of the air in the air-conditioned space S and the preset temperature and humidity decreases, the operation patterns of the air-conditioning device A are changed to the first, second, third , and so on. The air conditioning capacity is reduced by switching in the fifth order. When the first, second, third, and fifth operation patterns are combined, the control range of the temperature and humidity of the air-conditioned space S is expanded, and fine air conditioning can be performed. When the fourth operation pattern is additionally combined with these operation patterns, the operation is not biased only to the specific air conditioner A. The third operation pattern is performed by providing an electric two-way valve 42 for each branch pipe of the water pipe 7 for circulating heat exchange water in the air conditioner group B and operating the electric two-way valve 42.

Claims

被空調空間（Ｓ）の天井に設置される２組以上の空調機器（Ａ）を備え、
前記空調機器（Ａ）は、空調用空気を熱交換用水にて冷却又は加熱して前記被空調空間（Ｓ）に前記空調用空気を出しつつ前記空調用空気の熱を放射する放射空調機（３）と、熱交換用冷媒にて外気を冷却又は加熱するヒートポンプ（８）を有すると共に前記外気を前記放射空調機（３）を経由して前記被空調空間（Ｓ）に供給する外調機（４）と、を備え、
前記空調機器（Ａ）の運転と停止を組単位で行う第１の運転パターンと
前記外調機（４）の単体運転と前記外調機（４）及び前記放射空調機（３）の同時運転とを切換える第２の運転パターンと
を用いて前記被空調空間（Ｓ）を空調する制御装置（２）を、備えたことを特徴とする空気調和システム。 Equipped with two or more sets of air conditioning equipment (A) installed on the ceiling of the air-conditioned space (S),
The air conditioning device (A) is a radiation air conditioner that radiates the heat of the air conditioning air while cooling or heating the air conditioning air with heat exchange water and discharging the air conditioning air to the air-conditioned space (S). An external air conditioner having 3) and a heat pump (8) for cooling or heating the outside air with a heat exchange refrigerant, and supplying the outside air to the air-conditioned space (S) via the radiation air conditioner (3). (4) and
The first operation pattern in which the operation and stop of the air conditioner (A) are performed in groups, the single operation of the external air conditioner (4), and the simultaneous operation of the external air conditioner (4) and the radiation air conditioner (3) An air conditioning system including a control device (2) for air-conditioning the air-conditioned space (S) using a second operation pattern for switching between.

前記空調機器（Ａ）が、複数の前記放射空調機（３）で構成された空調機グループ（Ｂ）を、備え、
前記制御装置（２）が、前記放射空調機（３）の運転と停止を前記空調機グループ（Ｂ）単位で行う第３の運転パターンを、有する請求項１に記載の空気調和システム。 The air conditioner (A) includes an air conditioner group (B) composed of a plurality of the radiation air conditioners (3).
The air conditioning system according to claim 1, wherein the control device (2) has a third operation pattern in which the radiant air conditioner (3) is operated and stopped in units of the air conditioner group (B).

前記制御装置（２）が、運転中の前記空調機器（Ａ）と停止中の前記空調機器（Ａ）を交替させる第４の運転パターンを、有する請求項１又は２に記載の空気調和システム。 The air conditioning system according to claim 1 or 2, wherein the control device (2) has a fourth operation pattern of alternating the operating air conditioning device (A) with the stopped air conditioning device (A).

前記外調機（４）が、前記被空調空間（Ｓ）の還気を熱源空気として使用するものであって外気用熱交換器（１７）と熱源空気用熱交換器（１８）と圧縮機（１９）とを有する一体形のヒートポンプ（８）と、前記ヒートポンプ（８）を内装するケーシング（１２）と、前記ケーシング（１２）の底部から前記ヒートポンプ（８）を出し入れするためのスライド機構（１３）と、を備えた請求項１から３のいずれかに記載の空気調和システム。 The external conditioner (4) uses the return air of the air-conditioned space (S) as heat source air, and is an outside air heat exchanger (17), a heat source air heat exchanger (18), and a compressor. An integrated heat pump (8) having (19), a casing (12) containing the heat pump (8), and a slide mechanism (8) for moving the heat pump (8) in and out from the bottom of the casing (12). 13), the air conditioning system according to any one of claims 1 to 3.

前記放射空調機（３）が、前記空調用空気を熱交換する空調用熱交換器（２４）と、放射ユニット（２５）と、前記空調用空気を前記放射ユニット（２５）に送るファン空調用給気ファン（２６）と、を備え、
前記放射ユニット（２５）が、前記空調用空気が流れる第１チャンバ部（３２）と、前記第１チャンバ部（３２）から入った前記空調用空気を前記被空調空間（Ｓ）に出しつつ前記空調用空気の熱を放射する第２チャンバ部（３３）と、前記第１チャンバ部（３２）から前記第２チャンバ部（３３）に出る前記空調用空気の風速及び分布を調節する気流調節部（３４）と、を備えた請求項１から４のいずれかに記載の空気調和システム。 The radiation air conditioner (3) is for fan air conditioning that sends the air conditioning air to the radiation unit (25), the air conditioning heat exchanger (24) that exchanges heat with the air conditioning air, and the radiation unit (25). Equipped with an air supply fan (26)
The radiation unit (25) discharges the air-conditioning air entering from the first chamber portion (32) through which the air-conditioning air flows and the first chamber portion (32) to the air-conditioned space (S). A second chamber portion (33) that radiates the heat of the air conditioning air, and an air flow adjusting unit that adjusts the wind speed and distribution of the air conditioning air that exits from the first chamber portion (32) to the second chamber portion (33). (34), the air conditioning system according to any one of claims 1 to 4.

前記気流調節部（３４）が、前記空調用空気を前記第２チャンバ部（３３）に出す第１貫孔（３５）の群を備え、前記第２チャンバ部（３３）が、前記空調用空気を前記被空調空間（Ｓ）に出す第２貫孔（３６）の群を備え、前記第２貫孔（３６）の群の開口面積を前記第１貫孔（３５）の群の開口面積よりも大きく設定した請求項５に記載の空気調和システム。 The air-conditioning control unit (34) includes a group of first through holes (35) for discharging the air-conditioning air to the second chamber portion (33), and the second chamber portion (33) is the air-conditioning air. The group of the second through hole (36) is provided, and the opening area of the group of the second through hole (36) is larger than the opening area of the group of the first through hole (35). The air conditioning system according to claim 5, which is also largely set.

前記第１チャンバ部（３２）の前記空調用空気が通過する断面積を、風上側から風下側に向かって狭めた請求項５又は６に記載の空気調和システム。 The air conditioning system according to claim 5 or 6, wherein the cross-sectional area of the first chamber portion (32) through which the air conditioning air passes is narrowed from the windward side to the leeward side.