JPH09113006A - Air conditioning system - Google Patents
Air conditioning systemInfo
- Publication number
- JPH09113006A JPH09113006A JP7274220A JP27422095A JPH09113006A JP H09113006 A JPH09113006 A JP H09113006A JP 7274220 A JP7274220 A JP 7274220A JP 27422095 A JP27422095 A JP 27422095A JP H09113006 A JPH09113006 A JP H09113006A
- Authority
- JP
- Japan
- Prior art keywords
- water
- boiler
- source unit
- condensing unit
- heat source
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Air Conditioning Control Device (AREA)
- Other Air-Conditioning Systems (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、例えば、ショーケ
ース、空気調和機、及び冷却塔を備えてなる空気調和シ
ステムに関する。TECHNICAL FIELD The present invention relates to an air conditioning system including, for example, a showcase, an air conditioner, and a cooling tower.
【０００２】[0002]
【従来の技術】一般に、ショーケース等の水冷式コンデ
ンシングユニットと、複数の室内ユニットを有する空気
調和機の水熱源ユニットと、冷却塔とを管路でつなぎ、
この冷却塔からの冷却水を、前記水冷式コンデンシング
ユニット、及び／又は前記水熱源ユニットに循環可能に
した空気調和システムは知られている。2. Description of the Related Art Generally, a water cooling type condensing unit such as a showcase, a water heat source unit of an air conditioner having a plurality of indoor units, and a cooling tower are connected by a pipe line.
An air conditioning system is known in which cooling water from this cooling tower can be circulated to the water cooling type condensing unit and / or the water heat source unit.
【０００３】この種のものでは、ショーケース等の水冷
式コンデンシングユニットにおける廃熱を利用した、空
気調和機による空調を行なうことができるという利点が
得られる（例えば、特公昭５４−２８０２２号公報参
照）。This type has an advantage that air conditioning can be performed by an air conditioner utilizing waste heat in a water-cooled condensing unit such as a showcase (for example, Japanese Patent Publication No. Sho 54-28022). reference).
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、従来の
構成によれば、水冷式コンデンシングユニットにおける
廃熱を利用した空調を行なうことはできても、外気温度
が低い場合（寒冷地）には、十分な暖房効率をあげるこ
とができないという問題がある。これを解消するために
は、ボイラを設け、外気温度が低い場合に、水熱源ユニ
ットに高温の温水を循環できるようにすることが考えら
れる。However, according to the conventional configuration, although air conditioning using waste heat in the water-cooled condensing unit can be performed, when the outside air temperature is low (cold region), There is a problem that the heating efficiency cannot be increased sufficiently. In order to solve this, it is conceivable to provide a boiler so that high-temperature hot water can be circulated in the water heat source unit when the outside air temperature is low.
【０００５】しかしながら、複数の室内ユニットを有す
る空気調和機にあっては、暖房負荷に応じて室内ユニッ
トの運転台数を増減させるので、運転台数が減少した場
合あるいは暖房負荷が減少した場合にまで、ボイラを運
転させては、燃料の無駄になり、せっかくの廃熱利用に
よる空気調和システムが有効に機能しなくなるという問
題がある。However, in an air conditioner having a plurality of indoor units, the number of operating indoor units is increased / decreased according to the heating load. Therefore, even when the operating number decreases or the heating load decreases. When the boiler is operated, there is a problem that fuel is wasted and the air conditioning system due to the waste heat utilization does not function effectively.
【０００６】そこで、本発明の目的は、外気温度が低い
場合（寒冷地）にあっても、十分な暖房効率を挙げるこ
とができ、しかも廃熱利用による機能を十分に発揮でき
る、空気調和システムを提供することにある。[0006] Therefore, an object of the present invention is to provide an air conditioning system in which sufficient heating efficiency can be achieved even when the outside air temperature is low (cold region), and the function by utilizing waste heat can be sufficiently exerted. To provide.
【０００７】[0007]
【課題を解決するための手段】上記課題を解消するため
に、請求項１に記載の発明は、ショーケース等の水冷式
コンデンシングユニットと、空気調和機の水熱源ユニッ
トと、冷却塔とを管路でつなぎ、この冷却塔からの冷却
水を、水冷式コンデンシングユニット、及び／又は水熱
源ユニットに循環可能にした空気調和システムにおい
て、前記管路にはボイラをつなぎ、暖房運転時に空気調
和機の水熱源ユニットに循環させる温水としてはボイラ
により昇温させた温水、及び／又は水冷式コンデンシン
グユニットにより昇温させた温水を循環させることを特
徴とするものである。In order to solve the above problems, the invention according to claim 1 includes a water cooling type condensing unit such as a showcase, a water heat source unit of an air conditioner, and a cooling tower. In an air conditioning system in which cooling water from this cooling tower is circulated to a water-cooled condensing unit and / or a water heat source unit by connecting with a pipeline, a boiler is connected to the pipeline to perform air conditioning during heating operation. The hot water circulated in the water heat source unit of the machine is characterized by circulating hot water heated by a boiler and / or warm water heated by a water-cooling condensing unit.
【０００８】請求項２に記載の発明は、ショーケース等
の水冷式コンデンシングユニットと、複数の室内ユニッ
トを有する空気調和機の水熱源ユニットと、冷却塔とを
管路でつなぎ、この冷却塔からの冷却水を、前記水冷式
コンデンシングユニット、及び／又は前記水熱源ユニッ
トに循環可能にした空気調和システムにおいて、前記管
路にはボイラをつなぎ、暖房運転時に複数の室内ユニッ
トの暖房負荷が所定負荷よりも大きい時には、前記ボイ
ラにより昇温させた温水、及び前記水冷式コンデンシン
グユニットにより昇温させた温水を空気調和機の水熱源
ユニットに循環させ、複数の室内ユニットの暖房負荷が
所定負荷よりも小さい時には、前記ボイラを停止させ
て、前記水冷式コンデンシングユニットにより昇温させ
た温水を空気調和機の水熱源ユニットに循環させること
を特徴とするものである。According to a second aspect of the present invention, a water cooling type condensing unit such as a showcase, a water heat source unit of an air conditioner having a plurality of indoor units, and a cooling tower are connected by a pipeline, and the cooling tower is connected. In the air conditioning system in which the cooling water from is circulated to the water-cooled condensing unit and / or the water heat source unit, a boiler is connected to the pipeline, and a heating load of a plurality of indoor units is applied during heating operation. When the load is larger than a predetermined load, the hot water heated by the boiler and the hot water heated by the water-cooling condensing unit are circulated to the water heat source unit of the air conditioner so that the heating loads of the plurality of indoor units are predetermined. When the load is smaller than the load, the boiler is stopped and hot water heated by the water-cooled condensing unit is supplied to the air conditioner. It is characterized in that the circulating water the heat source unit.
【０００９】請求項１〜２に記載の発明によれば、管路
にボイラを設けることにより、暖房負荷が大きくなった
場合には、ボイラを運転させることにより、システム全
体としての暖房能力不足を解消することができる。よっ
て、いわゆる寒冷地向けのシステムになる。暖房負荷が
小さくなった場合には、ボイラの運転を停止させて、コ
ンデンサの廃熱だけを利用した運転に切り替えることが
できるので、暖房運転の効率を向上させることができ
る。更には、コンデンサの廃熱を利用するシステムであ
るので、ボイラだけを利用する場合に比べて、当該ボイ
ラの容量を小さく設計することができるものである。According to the first and second aspects of the present invention, by providing the boiler in the pipeline, when the heating load becomes large, the boiler is operated to reduce the heating capacity of the entire system. It can be resolved. Therefore, it becomes a system for so-called cold regions. When the heating load becomes small, the operation of the boiler can be stopped and switched to the operation using only the waste heat of the condenser, so that the efficiency of the heating operation can be improved. Further, since the system uses the waste heat of the condenser, the capacity of the boiler can be designed to be smaller than the case where only the boiler is used.
【００１０】[0010]
【発明の実施の形態】以下、本発明による一実施の形態
を添付図面を参照して説明する。図１において、１００
は冷却塔を示し、２００はショーケース２１０の水冷式
コンデンシングユニットを示し、３００は複数の室内ユ
ニット３１０を有する空気調和機の水熱源ユニットを示
している。冷却塔１００と、水冷式コンデンシングユニ
ット２００と、水熱源ユニット３００とは管路でつなが
れている。BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to the accompanying drawings. In FIG. 1, 100
Indicates a cooling tower, 200 indicates a water-cooled condensing unit of the showcase 210, and 300 indicates a water heat source unit of an air conditioner having a plurality of indoor units 310. The cooling tower 100, the water-cooled condensing unit 200, and the water heat source unit 300 are connected by a pipe line.
【００１１】配管系を説明すると、冷却塔１００から導
出される管路１１は、温度センサＴ３、Ｔ４を介してポ
ンプＰにつながれ、このポンプＰからの管路１２は水冷
式コンデンシングユニット２００のコンデンサ２０１に
つながれる。このコンデンサ２０１からの管路１３は三
方弁Ｖ４のポートＡにつながれ、この三方弁Ｖ４のポー
トＣは、後述する水熱源ユニット３００をバイパスし
て、冷却塔１００に連なる管路１４がつながれる。三方
弁Ｖ４のポートＢには管路１５がつながれ、この管路１
５は、三方弁Ｖ３のポートＢにつながれる。Explaining the piping system, the pipe line 11 led out from the cooling tower 100 is connected to a pump P via temperature sensors T3 and T4, and the pipe line 12 from the pump P is connected to the water cooling type condensing unit 200. It is connected to the capacitor 201. The pipe 13 from the condenser 201 is connected to the port A of the three-way valve V4, and the port C of the three-way valve V4 bypasses the water heat source unit 300 described later and is connected to the pipe 14 connected to the cooling tower 100. A pipe 15 is connected to the port B of the three-way valve V4, and this pipe 1
5 is connected to the port B of the three-way valve V3.
【００１２】この三方弁Ｖ３のポートＣには、温度セン
サＴ２を介して、三方弁Ｖ２のポートＢがつながれ、こ
の三方弁Ｖ２のポートＣには管路１６を通じて水熱源ユ
ニット３００の熱交換器３０１がつながれる。この熱交
換器３０１には管路１７がつながれ、この管路１７は上
記の管路１４につながれ、これらの管路１４，１７は、
温度センサＴ１を介して三方弁Ｖ１のポートＡにつなが
れる。この三方弁Ｖ１のポートＣは、管路１８を介して
冷却塔１００につながれる。The port C of the three-way valve V3 is connected to the port B of the three-way valve V2 via the temperature sensor T2, and the heat exchanger of the water heat source unit 300 is connected to the port C of the three-way valve V2 through the pipe 16. 301 is connected. A pipe line 17 is connected to the heat exchanger 301, the pipe line 17 is connected to the pipe line 14 and the pipe lines 14 and 17 are connected to each other.
It is connected to the port A of the three-way valve V1 via the temperature sensor T1. The port C of the three-way valve V1 is connected to the cooling tower 100 via the pipe line 18.
【００１３】更に説明すると、三方弁Ｖ１のポートＢ
は、管路２１を介して管路１１につながれ、三方弁Ｖ２
のポートＡは、管路２２を介して管路１２につながれ、
三方弁Ｖ３のポートＡは、管路２３を介してボイラ４０
０につながれ、このボイラ４００は管路２４を介して管
路１２につながれる。To explain further, the port B of the three-way valve V1
Is connected to the pipeline 11 through the pipeline 21, and the three-way valve V2
Port A is connected to the pipeline 12 via the pipeline 22,
The port A of the three-way valve V3 is connected to the boiler 40 via the pipe line 23.
0, the boiler 400 is connected to the conduit 12 via the conduit 24.
【００１４】水冷式コンデンシングユニット２００のコ
ンデンサ２０１は、冷媒管を介して、圧縮機２０２、シ
ョーケースのエバポレータ２１１、減圧手段２０３につ
ながれ、これらは冷凍サイクルを構成している。また、
水熱源ユニット３００の熱交換器３０１は、室外熱交換
器を構成し、冷媒管を介して、圧縮機３０２、四方弁３
０３、減圧手段３０４、室内ユニット３１０の熱交換器
３１１につながれ、しかも、複数の室内ユニット３１０
は個別運転制御可能になっている。The condenser 201 of the water-cooled condensing unit 200 is connected to a compressor 202, a showcase evaporator 211, and a pressure reducing means 203 via a refrigerant pipe, and these constitute a refrigeration cycle. Also,
The heat exchanger 301 of the water heat source unit 300 constitutes an outdoor heat exchanger, and includes a compressor 302 and a four-way valve 3 via a refrigerant pipe.
03, the pressure reducing means 304, and the heat exchanger 311 of the indoor unit 310, and moreover, the plurality of indoor units 310.
Can be controlled individually.
【００１５】つぎに、動作を説明する。ショーケース２
１０は冷凍・冷蔵用に、通年、使用されるので、夏期、
冬期に関係なく、冷却塔１００からの冷水は、ショーケ
ース２１０につながる水冷式コンデンシングユニット２
００のコンデンサ２０１に常に供給される。Next, the operation will be described. Showcase 2
10 is used all year round for freezing and refrigerating, so in the summer,
Regardless of the winter season, the cold water from the cooling tower 100 is connected to the showcase 210 by the water-cooled condensing unit 2
No. 00 capacitor 201 is always supplied.
【００１６】夏期においては、図１に示すように、三方
弁Ｖ４のポートＡ，Ｃと、三方弁Ｖ２のポートＡ，Ｃ
と、三方弁Ｖ１のポートＡ，Ｃとがつながれる。冷却塔
１００からの冷水は、実線の矢印で示すように、管路１
１、ポンプＰ、管路１２を通して、水冷式コンデンシン
グユニット２００のコンデンサ２０１に流入し、そこで
熱交換した後、管路１３、三方弁Ｖ４のポートＡ，Ｃ、
管路１４、三方弁Ｖ１のポートＡ，Ｃ、管路１８を通じ
て冷却塔１００に戻される。それと同時に、冷却塔１０
０からの冷水は、管路２２、三方弁Ｖ２のポートＡ，Ｃ
を通じて、水熱源ユニット３００の熱交換器３０１に流
入し、そこで熱交換した後、管路１７、三方弁Ｖ１のポ
ートＡ，Ｃを通じて冷却塔１００に戻される。尚、図１
において、参照符号７０はファンを示す。In the summer, as shown in FIG. 1, ports A and C of the three-way valve V4 and ports A and C of the three-way valve V2.
And the ports A and C of the three-way valve V1 are connected. The chilled water from the cooling tower 100, as shown by the solid arrow, is
1, through the pump P and the pipe 12, flows into the condenser 201 of the water-cooled condensing unit 200, and after heat exchange there, the pipe 13, the ports A and C of the three-way valve V4,
It is returned to the cooling tower 100 through the pipe 14, the ports A and C of the three-way valve V1, and the pipe 18. At the same time, the cooling tower 10
The chilled water from 0 is the conduit 22 and the ports A and C of the three-way valve V2.
Through the heat exchanger 301 of the water heat source unit 300, and after heat exchange there, it is returned to the cooling tower 100 through the pipe 17 and the ports A and C of the three-way valve V1. FIG.
In, reference numeral 70 indicates a fan.
【００１７】これによれば、水冷式コンデンシングユニ
ット２００のコンデンサ２０１、及び水熱源ユニット３
００の熱交換器３０１には、それぞれ並列に冷却塔１０
０からの冷水が供給されるので、運転効率が向上する。According to this, the condenser 201 of the water-cooled condensing unit 200 and the water heat source unit 3
The heat exchangers 301 of the cooling towers 10 are connected in parallel to each other.
Since the cold water from 0 is supplied, the operation efficiency is improved.
【００１８】冬期においては、暖房負荷に応じて温水の
流れが制御される。暖房負荷が大きいときには、三方弁
Ｖ４のポートＡ，Ｂと、三方弁Ｖ３のポートＡ，Ｂ，Ｃ
と、三方弁Ｖ２のポートＢ，Ｃと、三方弁Ｖ１のポート
Ａ，Ｃとがつながれる。冷却塔１００からの冷水は、図
２に実線の矢印で示すように、管路１１、ポンプＰ、管
路１２を通じて、水冷式コンデンシングユニット２００
のコンデンサ２０１に流入し、そこで熱交換した後、管
路１３、三方弁Ｖ４のポートＡ，Ｂ、管路１５を経て三
方弁Ｖ３のポートＢに至り、それと同時に、冷却塔１０
０からの冷水は、管路２４を経て、ボイラ４００に流入
し、このボイラ４００で昇温された後、三方弁Ｖ３のポ
ートＡに至り、これらは三方弁Ｖ３で合流してポートＣ
から流出し、三方弁Ｖ２のポートＡ，Ｃを通じて、水熱
源ユニット３００の熱交換器３０１に流入する。そし
て、そこを経た後、管路１７、三方弁Ｖ１のポートＡ，
Ｃを通じて冷却塔１００に戻される。In the winter, the flow of hot water is controlled according to the heating load. When the heating load is large, ports A and B of three-way valve V4 and ports A, B and C of three-way valve V3
And the ports B and C of the three-way valve V2 and the ports A and C of the three-way valve V1 are connected. The cold water from the cooling tower 100 passes through the pipe line 11, the pump P, and the pipe line 12 as shown by the solid line arrow in FIG.
Of the three-way valve V3 through the pipe 13, the ports A and B of the three-way valve V4, and the pipe 15 and then to the port B of the three-way valve V3, at the same time.
The cold water from 0 flows into the boiler 400 via the pipe line 24, is heated in the boiler 400, and then reaches the port A of the three-way valve V3.
And flows into the heat exchanger 301 of the water heat source unit 300 through the ports A and C of the three-way valve V2. Then, after passing through it, the pipe line 17, the port A of the three-way valve V1,
It is returned to the cooling tower 100 through C.
【００１９】これによれば、コンデンサ２０１の廃熱と
ボイラ４００の熱の双方が上記の熱交換器３０１で利用
されるので、暖房負荷が大きい（例えば外気温度が低
い）場合でも、十分な暖房効率をあげることができる。According to this, since both the waste heat of the condenser 201 and the heat of the boiler 400 are used in the heat exchanger 301, sufficient heating is achieved even when the heating load is large (for example, the outside air temperature is low). You can improve efficiency.
【００２０】暖房負荷が小さいときには、三方弁Ｖ４の
ポートＡ，Ｂと、三方弁Ｖ３のポートＢ，Ｃと、三方弁
Ｖ２のポートＢ，Ｃと、三方弁Ｖ１のポートＡ，Ｃとが
つながれる。冷却塔１００からの冷水は、図３に実線の
矢印で示すように、管路１１、ポンプＰ、管路１２を通
じて、水冷式コンデンシングユニット２００のコンデン
サ２０１に流入し、そこで熱交換した後、管路１３、三
方弁Ｖ４のポートＡ，Ｂ、管路１５、三方弁Ｖ３のポー
トＢ，Ｃ、三方弁Ｖ２のポートＢ，Ｃを経て、水熱源ユ
ニット３００の熱交換器３０１に流入する。そして、そ
こを経た後、管路１７、三方弁Ｖ１のポートＡ，Ｃを通
じて冷却塔１００に戻される。When the heating load is small, the ports A and B of the three-way valve V4, the ports B and C of the three-way valve V3, the ports B and C of the three-way valve V2, and the ports A and C of the three-way valve V1 are connected. It Cold water from the cooling tower 100 flows into the condenser 201 of the water-cooled condensing unit 200 through the conduit 11, the pump P, and the conduit 12 as shown by the solid arrow in FIG. It flows into the heat exchanger 301 of the water heat source unit 300 via the pipe 13, the ports A and B of the three-way valve V4, the pipe 15, the ports B and C of the three-way valve V3, and the ports B and C of the three-way valve V2. Then, after passing there, it is returned to the cooling tower 100 through the conduit 17 and the ports A and C of the three-way valve V1.
【００２１】暖房負荷が小さい（例えば室内ユニット３
１０の運転台数が少ない）ときには、コンデンサ２０１
の廃熱だけを利用しても、十分な暖房効率をあげること
ができるので、ボイラ４００の運転を停止させることに
より、化石燃料の無駄使いを解消することができ、省資
源化が図れられる。The heating load is small (for example, the indoor unit 3
10), the condenser 201
Since the sufficient heating efficiency can be improved by using only the waste heat of the above, by stopping the operation of the boiler 400, waste of fossil fuel can be eliminated and resource saving can be achieved.
【００２２】要するに、この実施の形態によれば、ボイ
ラ４００を設けることにより、暖房負荷の大きい場合
に、能力不足に至らず、いわゆる寒冷地向けのシステム
を提供することができる。また、暖房負荷が小さい場合
には、ボイラ４００の運転を停止させて、コンデンサ２
０１の廃熱だけを利用した運転に切り替えることができ
るので、暖房運転の効率を向上させることができる。更
に、コンデンサ２０１の廃熱を利用するシステムである
ので、ボイラ４００だけを利用する場合に比べ、当該ボ
イラ４００の容量を小さくすることができる。In short, according to the present embodiment, by providing the boiler 400, it is possible to provide a so-called cold region system without causing capacity shortage when the heating load is large. When the heating load is small, the operation of the boiler 400 is stopped and the condenser 2
Since it is possible to switch to the operation using only the waste heat of 01, it is possible to improve the efficiency of the heating operation. Furthermore, since the system uses the waste heat of the condenser 201, the capacity of the boiler 400 can be reduced as compared with the case where only the boiler 400 is used.
【００２３】[0023]
【発明の効果】以上の説明から明らかなように、管路に
ボイラを設けることにより、ボイラの熱を利用した暖房
が可能になると共に、例えば暖房負荷が小さい場合に
は、ボイラの運転を停止させ、コンデンサの廃熱だけを
利用した運転に切り替えることもできるので、経済的な
システムを提供することができる。As is clear from the above description, by providing the boiler in the pipeline, it becomes possible to perform heating utilizing the heat of the boiler, and when the heating load is small, the operation of the boiler is stopped. Since it is also possible to switch to operation using only the waste heat of the condenser, it is possible to provide an economical system.
【図１】本発明による空気調和システムの一実施の形態
を示す系統図である。FIG. 1 is a system diagram showing an embodiment of an air conditioning system according to the present invention.
【図２】暖房負荷の大きい場合の冷却水の流れを示す系
統図である。FIG. 2 is a system diagram showing a flow of cooling water when a heating load is large.
【図３】暖房負荷の小さい場合の冷却水の流れを示す系
統図である。FIG. 3 is a system diagram showing a flow of cooling water when a heating load is small.
１００ 冷却塔 ２００ 水冷式コンデンシングユニット ２０１ コンデンサ ２１０ ショーケース ３００ 水熱源ユニット ３０１ 熱交換器 ３１０ 室内ユニット ４００ ボイラ Ｖ１〜Ｖ４ 三方弁 Ａ〜Ｃ ポート 100 Cooling Tower 200 Water Cooling Condensing Unit 201 Condenser 210 Showcase 300 Water Heat Source Unit 301 Heat Exchanger 310 Indoor Unit 400 Boiler V1-V4 Three-way Valve A-C Port
Claims (2)
ユニットと、空気調和機の水熱源ユニットと、冷却塔と
を管路でつなぎ、この冷却塔からの冷却水を、前記水冷
式コンデンシングユニット、及び／又は前記水熱源ユニ
ットに循環可能にした空気調和システムにおいて、前記
管路にはボイラをつなぎ、暖房運転時に前記空気調和機
の水熱源ユニットに循環させる温水としては前記ボイラ
により昇温させた温水、及び／又は前記水冷式コンデン
シングユニットにより昇温させた温水を循環させること
を特徴とする空気調和システム。1. A water-cooled condensing unit such as a showcase, a water heat source unit of an air conditioner, and a cooling tower are connected by a pipe line, and cooling water from the cooling tower is connected to the water-cooled condensing unit, And / or in the air conditioning system that can be circulated to the water heat source unit, a boiler is connected to the pipeline, and hot water circulated to the water heat source unit of the air conditioner during heating operation is heated by the boiler. An air conditioning system characterized in that hot water and / or hot water heated by the water-cooled condensing unit is circulated.
ユニットと、複数の室内ユニットを有する空気調和機の
水熱源ユニットと、冷却塔とを管路でつなぎ、この冷却
塔からの冷却水を、前記水冷式コンデンシングユニッ
ト、及び／又は前記水熱源ユニットに循環可能にした空
気調和システムにおいて、前記管路にはボイラをつな
ぎ、暖房運転時に複数の室内ユニットの暖房負荷が所定
負荷よりも大きい時には、前記ボイラにより昇温させた
温水、及び前記水冷式コンデンシングユニットにより昇
温させた温水を空気調和機の水熱源ユニットに循環さ
せ、複数の室内ユニットの暖房負荷が所定負荷よりも小
さい時には、前記ボイラを停止させて、前記水冷式コン
デンシングユニットにより昇温させた温水を空気調和機
の水熱源ユニットに循環させることを特徴とする空気調
和システム。2. A water cooling type condensing unit such as a showcase, a water heat source unit of an air conditioner having a plurality of indoor units, and a cooling tower are connected by a pipeline, and cooling water from this cooling tower is connected to In a water-cooled condensing unit, and / or an air conditioning system that can be circulated to the water heat source unit, a boiler is connected to the pipe line, and when a heating load of a plurality of indoor units during a heating operation is larger than a predetermined load, The hot water heated by the boiler and the hot water heated by the water-cooled condensing unit are circulated to the water heat source unit of the air conditioner, and when the heating load of the plurality of indoor units is smaller than a predetermined load, the The boiler is stopped and the hot water heated by the water-cooled condensing unit is circulated to the water heat source unit of the air conditioner. An air conditioning system that is characterized by
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27422095A JP3670731B2 (en) | 1995-10-23 | 1995-10-23 | Air conditioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27422095A JP3670731B2 (en) | 1995-10-23 | 1995-10-23 | Air conditioning system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09113006A true JPH09113006A (en) | 1997-05-02 |
| JP3670731B2 JP3670731B2 (en) | 2005-07-13 |
Family
ID=17538706
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP27422095A Expired - Fee Related JP3670731B2 (en) | 1995-10-23 | 1995-10-23 | Air conditioning system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3670731B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000274785A (en) * | 1999-03-19 | 2000-10-06 | Ntt Power & Building Facilities Inc | Air conditioning system |
| US7918104B2 (en) | 2006-09-01 | 2011-04-05 | Lg Electronics Inc. | Water cooling type air conditioner |
-
1995
- 1995-10-23 JP JP27422095A patent/JP3670731B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000274785A (en) * | 1999-03-19 | 2000-10-06 | Ntt Power & Building Facilities Inc | Air conditioning system |
| US7918104B2 (en) | 2006-09-01 | 2011-04-05 | Lg Electronics Inc. | Water cooling type air conditioner |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3670731B2 (en) | 2005-07-13 |
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