JPH06249471A - Cold water manufacturing system - Google Patents
Cold water manufacturing systemInfo
- Publication number
- JPH06249471A JPH06249471A JP5058034A JP5803493A JPH06249471A JP H06249471 A JPH06249471 A JP H06249471A JP 5058034 A JP5058034 A JP 5058034A JP 5803493 A JP5803493 A JP 5803493A JP H06249471 A JPH06249471 A JP H06249471A
- Authority
- JP
- Japan
- Prior art keywords
- cold water
- heat exchanger
- cooling
- valve means
- refrigerator
- 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
- Devices That Are Associated With Refrigeration Equipment (AREA)
- Other Air-Conditioning Systems (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は冷水製造システムに関
し、特に冷却塔を利用した冬期冷水製造システムに関す
るものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cold water production system, and more particularly to a winter cold water production system using a cooling tower.
【０００２】[0002]
【従来の技術】最近では、コンピュータ設置室など、冬
期であっても室内冷房が必要な環境が増加している。冬
期に室内冷房を行う方法としては、夏期と同様に冷凍機
を使用して冷水を得て空調機やファンコイルユニットで
冷風を形成する方法、あるいは外気を直接室内に導入し
て送風する方法などが従来より知られている。2. Description of the Related Art Recently, there is an increasing number of environments, such as computer installation rooms, which require indoor cooling even in winter. As a method for indoor cooling in winter, as in summer, use a refrigerator to obtain cold water to form cool air with an air conditioner or fan coil unit, or to introduce outside air directly into the room to blow air. Has been known for a long time.
【０００３】しかし、夏期と同様な方法により冷房を行
う方法はランニングコストの点で問題があり、また外気
冷房の場合には外気導入風道の設置や空調機の切換など
の点で問題があり、その解決が希求されていた。However, the method of cooling in the same manner as in summer has a problem in running cost, and in the case of outside air cooling, there is a problem in installing an outside air introducing air passage and switching air conditioners. , That solution was sought after.
【０００４】かかる技術的課題に鑑み、本願出願人は先
に特公昭５７−４３８２３号において、冷水配管と冷却
水配管をバルブ切換により接続し、冬期には冷却塔に冷
水を循環させ、外気により冷水を製造する方法を提案し
ている。In view of such a technical problem, the applicant of the present invention has previously disclosed in Japanese Patent Publication No. 57-43823 that cold water pipes and cooling water pipes are connected by valve switching so that cold water is circulated in a cooling tower in the winter season and the cold air is circulated. A method for producing cold water is proposed.
【０００５】しかしながら、上記装置においては、冷水
を冷却塔に通水する構造であるため、冷水が汚染し、ひ
いては空調機コイル等を汚染するおそれがあった。この
ように、冷水の汚染という問題を考慮した場合には、上
記装置においては開放式冷却塔は採用しづらく、実際上
は、密閉式冷却塔にのみ適用できるものであった。ま
た、同様の理由により、冷水配管が開放式である場合に
も上記装置を採用することは困難であった。さらに、上
記装置にあっては、冬期において冷却塔と空調機を連絡
する長い冷水循環系を冷水ポンプのみで形成する必要が
あるため、その冷水ポンプの揚程が大きくなる傾向があ
り問題となっていた。However, in the above apparatus, since cold water is passed through the cooling tower, there is a risk that cold water will be contaminated and eventually the air conditioner coil and the like. Thus, when the problem of cold water contamination is taken into consideration, it is difficult to adopt an open type cooling tower in the above apparatus, and in practice, it can be applied only to a closed type cooling tower. Also, for the same reason, it is difficult to employ the above device even when the cold water pipe is an open type. Further, in the above device, since it is necessary to form a long chilled water circulation system that connects the cooling tower and the air conditioner with only the chilled water pump in the winter, the chilled water pump tends to have a large lift, which is a problem. It was
【０００６】[0006]
【発明が解決しようとする課題】従って、本発明は上記
のような従来の冷水製造システムの有する問題点に鑑み
なされたもので、その目的は、外気を冷熱源として使用
することにより動力源の大幅な節減が可能であり、冬期
にあっても既設の設備を利用して室内冷房を実施するこ
とが可能であり、さらに冷水ポンプの揚程を大きくする
ことなく、開放式冷却塔や開放式冷水配管に対しても問
題なく適用することが可能な、新規かつ改良された冷水
製造システムを提供することである。Therefore, the present invention has been made in view of the problems of the conventional cold water production system as described above, and its purpose is to use the outside air as a cold heat source to improve the power of the power source. Significant savings are possible, and it is possible to carry out indoor cooling using existing equipment even in winter.In addition, open cooling towers and open cold water can be used without increasing the head of the cold water pump. It is an object of the present invention to provide a new and improved chilled water production system which can be applied to piping without any problem.
【０００７】[0007]
【課題を解決するための手段】上記課題を解決するため
に、本発明によれば、冷却塔からの送り冷却水を弁手段
の切換により熱交換器又は冷凍機のいずれか一方に選択
的に送ることが可能であると共に、弁手段の切換により
上記熱交換器又は上記冷凍機からの戻り冷却水を上記冷
却塔に戻すことが可能なように構成された冷却水循環系
と、上記熱交換器又は上記冷凍機のいずれか一方からの
送り冷水を弁手段の切換により負荷に送ることが可能で
あると共に、弁手段の切換により負荷からの戻り冷水を
上記熱交換器又は上記冷凍機のいずれか一方に戻すこと
が可能なように構成された負荷側冷水循環系と、から構
成された冷水製造システムにおいて、夏期には、冷却塔
からの冷却水を冷凍機に送りその冷凍機からの戻り冷却
水を冷却塔に戻すように弁手段を切り換えると共に、上
記冷凍機からの冷水を負荷に送りその負荷からの戻り冷
水を上記冷凍機に戻すように弁手段が切り換えられ、冬
期には、冷却塔からの冷却水を熱交換器に送りその熱交
換器からの戻り冷却水を冷却塔に戻すように弁手段を切
り換えると共に、上記熱交換器からの冷水を負荷に送り
その負荷からの戻り冷水を上記熱交換器に戻すように弁
手段が切り換えられることを特徴とする、冷水製造シス
テムが提供される。In order to solve the above problems, according to the present invention, the cooling water sent from the cooling tower is selectively supplied to either the heat exchanger or the refrigerator by switching the valve means. A cooling water circulation system configured to be capable of being sent to the cooling tower and capable of returning the cooling water returned from the heat exchanger or the refrigerator to the cooling tower by switching the valve means. Alternatively, it is possible to send cold water sent from either one of the refrigerators to the load by switching the valve means, and return cold water from the load by switching the valve means in either the heat exchanger or the refrigerator. In a cold water production system consisting of a load side cold water circulation system that can be returned to one side, in the summer, the cooling water from the cooling tower is sent to the refrigerator and the return cooling from the refrigerator is performed. Return water to the cooling tower The valve means is switched so that the cold water from the refrigerator is sent to the load and the return cold water from the load is returned to the refrigerator, and in the winter, the cooling water from the cooling tower is heat-exchanged. The cooling water from the heat exchanger to the cooling tower, and the cold water from the heat exchanger to the load to return the cold water from the load to the heat exchanger. A cold water production system is provided, characterized in that the valve means is switched to.
【０００８】さらに本発明によれば、上記冷却水循環系
に、冷却塔を迂回して往路と復路とを短絡することが可
能な弁手段を設け、その弁手段を系を流れる冷却水の温
度に応じて開閉する温度制御弁として機能させることが
好ましい。Further, according to the present invention, the cooling water circulation system is provided with valve means capable of bypassing the cooling tower and short-circuiting the forward path and the return path, and setting the valve means to the temperature of the cooling water flowing through the system. It is preferable to function as a temperature control valve that opens and closes accordingly.
【０００９】[0009]
【作用】以上のように、本発明によれば、屋外に設置さ
れた冷却塔を利用して外気により冷却された冷却水を、
選択的に熱交換器又は冷凍機に供給しそこから回収する
冷却水循環系を形成することが可能であると共に、選択
的に熱交換器又は冷凍機から供給された冷水を負荷側に
送りそこから回収する冷水循環系を形成することが可能
である。そのため、夏期においては、冷却塔と冷凍機を
連絡する冷却水循環系と、冷凍機と負荷とを連絡する冷
水循環系とを形成するように弁手段を切り換えることが
可能である。これに対して、冬期においては、冷却塔と
熱交換器を連絡する冷却水循環系と、熱交換器と負荷と
を連絡する冷水循環系とを形成するように弁手段を切り
換えることが可能である。As described above, according to the present invention, the cooling water cooled by the outside air by utilizing the cooling tower installed outdoors,
It is possible to form a cooling water circulation system that selectively supplies to and recovers from the heat exchanger or the refrigerator, and selectively sends the cold water supplied from the heat exchanger or the refrigerator to the load side. It is possible to form a cold water circulation system for recovery. Therefore, in the summer, it is possible to switch the valve means so as to form a cooling water circulation system that connects the cooling tower and the refrigerator and a cold water circulation system that connects the refrigerator and the load. On the other hand, in winter, it is possible to switch the valve means so as to form a cooling water circulation system that connects the cooling tower and the heat exchanger and a cooling water circulation system that connects the heat exchanger and the load. .
【００１０】その結果、本発明によれば、冷水の汚染を
回避することが可能なので、開放式冷却塔に対しても適
用することが可能であると共に、冬期においても、冷水
循環系と冷却水循環系との２系統の循環系を採用するの
で、循環用駆動ポンプの揚程を小さくすることができ
る。As a result, according to the present invention, contamination of cold water can be avoided, so that the present invention can be applied to an open type cooling tower, and even in the winter season, the cold water circulation system and the cooling water circulation can be applied. Since the two circulation systems including the system are adopted, the head of the circulation drive pump can be reduced.
【００１１】また、温度制御弁により冷却塔を迂回する
経路を設け、冷却水の温度の変化に応じて温度制御弁の
開閉を行うことにより、冷却水の温度制御を容易に行う
ことが可能である。Further, the temperature control valve is provided with a path that bypasses the cooling tower, and the temperature control valve is opened / closed according to the change in the temperature of the cooling water, whereby the temperature control of the cooling water can be easily performed. is there.
【００１２】[0012]
【実施例】以下に、添付図面を参照しながら本発明に基
づいて構成された冷水製造システムについて詳細に説明
する。図１に示すように、本発明に基づく冷水製造シス
テムは、冷却塔１と熱交換器８又は冷凍機５とを連絡す
る冷却水循環経路Ａと、空調機などの負荷１５と熱交換
器８又は冷凍機５とを連絡する冷水循環経路Ｂとから構
成されている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A cold water production system constructed according to the present invention will be described in detail below with reference to the accompanying drawings. As shown in FIG. 1, the cold water production system according to the present invention includes a cooling water circulation path A that connects the cooling tower 1 and the heat exchanger 8 or the refrigerator 5, a load 15 such as an air conditioner, and the heat exchanger 8 or It comprises a cold water circulation path B which communicates with the refrigerator 5.
【００１３】冷却水循環経路Ａは、図示の通り、建築物
の屋上等に設置される冷却塔１と熱交換器又は冷凍機と
の間で冷却水を循環させるための経路である。冷却塔１
としては、後述するように、本発明によれば密閉式冷却
塔に限らず開放式冷却塔であっても自由に選択し採用す
ることが可能である。As shown in the figure, the cooling water circulation path A is a path for circulating cooling water between the cooling tower 1 installed on the roof of a building or the like and a heat exchanger or a refrigerator. Cooling tower 1
As will be described later, according to the present invention, not only the closed cooling tower but also an open cooling tower can be freely selected and adopted.
【００１４】冷却塔１において外気により例えば５℃〜
１０℃に冷却された冷却水は、供給管路２により冷却水
ポンプ３および第１の弁手段４を介して冷凍機５の凝縮
器に送ることが可能である。さらに、冷却水ポンプ３の
下流側には分岐路６が設けられており、その分岐路６は
第２の弁手段７を介して熱交換器８に連絡しており、冷
却水を熱交換器８に送ることも可能である。なお、熱交
換器８としては、熱交換効率に優れるプレート型の熱交
換器を採用することが可能である。In the cooling tower 1, depending on the outside air, for example, 5 ° C.
The cooling water cooled to 10 ° C. can be sent to the condenser of the refrigerator 5 via the cooling water pump 3 and the first valve means 4 by the supply pipeline 2. Further, a branch path 6 is provided on the downstream side of the cooling water pump 3, and the branch path 6 communicates with the heat exchanger 8 via the second valve means 7 to transfer the cooling water to the heat exchanger. It is also possible to send to 8. As the heat exchanger 8, it is possible to employ a plate-type heat exchanger having excellent heat exchange efficiency.
【００１５】同様に、冷凍機５からの冷却水の戻り管路
９は第３の弁手段１０を介して冷却塔１にまで連絡して
おり、冷凍機５において冷熱が奪われた冷却水を冷却塔
１に戻すことが可能である。また、戻り管路９はその途
中で分岐路２５に連絡しており、その分岐路２５は第４
の弁手段１１を介して熱交換器８に連絡しており、熱交
換器８において冷熱が奪われた冷却水を冷却塔１に戻す
ことが可能なように構成されている。Similarly, the return line 9 for the cooling water from the refrigerator 5 is connected to the cooling tower 1 via the third valve means 10, so that the cooling water from which the cold heat has been taken in the refrigerator 5 is removed. It is possible to return it to the cooling tower 1. Further, the return pipe 9 is connected to the branch passage 25 on the way, and the branch passage 25 is connected to the fourth passage 25.
The heat exchanger 8 is connected to the heat exchanger 8 via the valve means 11 and is configured to be able to return the cooling water deprived of cold heat in the heat exchanger 8 to the cooling tower 1.
【００１６】また、上記冷却水ポンプ３の上流側、すな
わち冷却水ポンプ３と冷却と１との間には短絡路１２が
分岐するように設けられており、その短絡路１２は第１
の温度制御弁１３を介して冷凍機５および熱交換器８の
下流において戻り管路９に連絡している。さらに、戻り
管路９には、短絡路１２と戻り管路９の合流点と冷却塔
１との間において、第２の温度制御弁１４が設けられて
いる。Further, a short-circuit path 12 is provided so as to branch from the upstream side of the cooling water pump 3, that is, between the cooling water pump 3 and the cooling 1, and the short-circuit path 12 is the first.
The return pipe 9 is connected downstream of the refrigerator 5 and the heat exchanger 8 via the temperature control valve 13 of FIG. Further, the return pipe 9 is provided with a second temperature control valve 14 between the confluence of the short circuit 12 and the return pipe 9 and the cooling tower 1.
【００１７】以上のように、本発明に基づく冷水製造シ
ステムの冷却水循環経路は構成されている。次に熱交換
器８又は冷凍機５と空調機などの負荷１５とを連絡し、
その間で冷水を循環させることが可能な冷水循環経路Ｂ
の構成について説明する。As described above, the cooling water circulation path of the cold water production system according to the present invention is configured. Next, connect the heat exchanger 8 or the refrigerator 5 to the load 15 such as an air conditioner,
Cold water circulation route B capable of circulating cold water between them
The configuration of will be described.
【００１８】図示のように冷水循環経路Ｂにおいて、熱
交換器８から供給される冷水は、第５の弁手段１６を介
して供給管路１７により負荷１５に送ることが可能であ
る。同様に、供給管路１７は分岐路１９を備えており、
冷凍機５からの冷水を第６の弁手段１８を介して分岐路
１９により供給管路１７に供給することが可能なように
構成されている。In the cold water circulation path B as shown in the figure, the cold water supplied from the heat exchanger 8 can be sent to the load 15 by the supply pipe line 17 via the fifth valve means 16. Similarly, the supply line 17 includes a branch line 19,
The cold water from the refrigerator 5 is configured to be able to be supplied to the supply pipeline 17 through the branch passage 19 via the sixth valve means 18.
【００１９】負荷１５から戻された冷水は、冷水ポンプ
２０および第７の弁手段２１を介して、戻り管路２２に
より熱交換器８に戻すことが可能である。また、戻り管
路２２は分岐路２３を備えており、この分岐路２３によ
り第８の弁手段２４を介して冷水を冷凍機５に戻すこと
も可能である。The cold water returned from the load 15 can be returned to the heat exchanger 8 by the return pipe 22 via the cold water pump 20 and the seventh valve means 21. Further, the return pipe line 22 is provided with a branch line 23, and the branch line 23 can also return the cold water to the refrigerator 5 via the eighth valve means 24.
【００２０】本発明に基づく冷水製造システムは上記の
ように構成されており、第１〜第８の弁手段を適宜切り
換えることにより、既存設備を利用して最適な省エネ運
転を実施可能である。The cold water production system according to the present invention is configured as described above, and by appropriately switching the first to eighth valve means, it is possible to carry out the optimum energy-saving operation using the existing equipment.
【００２１】夏期においては、第２の弁手段７、第４の
弁手段１１、第５の弁手段１６および第７の弁手段２１
をそれぞれ閉止すると共に、第１の弁手段１、第３の弁
手段１０、第６の弁手段１８および第８の弁手段２４を
それぞれ開放することにより、冷却塔１および負荷１５
を冷凍機５と連絡させる２つの循環系を形成することが
可能である。In the summer, the second valve means 7, the fourth valve means 11, the fifth valve means 16 and the seventh valve means 21.
Are closed and the first valve means 1, the third valve means 10, the sixth valve means 18 and the eighth valve means 24 are opened respectively, so that the cooling tower 1 and the load 15
It is possible to form two circulatory systems that connect the refrigerator with the refrigerator 5.
【００２２】このように弁を切り換えることにより、冷
却塔１において冷却された冷却水を供給管路２を介して
冷却水ポンプ３により冷凍機５に送り、冷凍機において
冷却された冷水を分岐路１９および供給管路１７を介し
て負荷側に送ることにより、冷熱伝達の往路が形成され
る。By switching the valves in this way, the cooling water cooled in the cooling tower 1 is sent to the refrigerator 5 by the cooling water pump 3 via the supply pipe 2, and the cooling water cooled in the refrigerator is branched. By sending to the load side via 19 and the supply pipe line 17, a forward path of cold heat transfer is formed.
【００２３】同様に、負荷側から戻された冷水は戻り管
路２２および分岐路２３を介して冷水ポンプ２０により
冷凍機５に送られ、冷凍機において熱を帯びた冷却水は
戻り管路９を介して冷却塔１に送られ、そこで放熱する
ことにより、冷熱伝達の復路が形成される。Similarly, the cold water returned from the load side is sent to the refrigerator 5 by the cold water pump 20 via the return conduit 22 and the branch passage 23, and the cooling water heated in the refrigerator is returned to the return conduit 9 It is sent to the cooling tower 1 via and is radiated there to form a return path for cold heat transfer.
【００２４】以上のように、夏期においては、本発明に
基づく冷水製造システムによれば、通常の冷房設備と同
様に、冷凍機５を使用して、その冷熱により室内冷房を
実施することが可能である。As described above, according to the chilled water production system of the present invention, in the summer, the refrigerator 5 can be used to perform indoor cooling by the cold heat as in the case of the normal cooling equipment. Is.
【００２５】冬期においては、夏期とは逆に、第２の弁
手段７、第４の弁手段１１、第５の弁手段１６および第
７の弁手段２１をそれぞれ開放すると共に、第１の弁手
段１、第３の弁手段１０、第６の弁手段１８および第８
の弁手段２４をそれぞれ閉止することにより、冷却塔１
および負荷１５を、夏期のように冷凍機５ではなく熱交
換器８と連絡させる２つの循環系を形成することが可能
である。In the winter, contrary to the summer, the second valve means 7, the fourth valve means 11, the fifth valve means 16 and the seventh valve means 21 are opened and the first valve means is opened. Means 1, third valve means 10, sixth valve means 18 and eighth
By closing the valve means 24 of each, the cooling tower 1
It is possible to form two circulation systems which allow the load 15 and the load 15 to communicate with the heat exchanger 8 instead of the refrigerator 5 as in the summer.
【００２６】このように弁を切り換えることにより、冷
却塔１において冷却された冷却水を供給管路２および分
岐路６を介して冷却水ポンプ３により、夏期とは異なり
熱交換器８に送り、熱交換器８において熱交換され冷却
された冷水を供給管路１７を介して負荷側に送ることに
より、冷熱伝達の往路が形成される。By switching the valves in this manner, the cooling water cooled in the cooling tower 1 is sent to the heat exchanger 8 by the cooling water pump 3 via the supply pipe line 2 and the branch line 6, unlike in the summer. By sending the cold water that has been heat-exchanged and cooled in the heat exchanger 8 to the load side through the supply pipe line 17, a forward path of cold heat transfer is formed.
【００２７】同様に、負荷側から戻された冷水は戻り管
路２２を介して冷水ポンプ２０により熱交換器８に送ら
れ、熱交換器８において熱が受け渡された冷却水は分岐
路２５および戻り管路９を介して冷却塔１に送られ、そ
こで放熱することにより、冷熱伝達の復路が形成され
る。Similarly, the chilled water returned from the load side is sent to the heat exchanger 8 by the chilled water pump 20 via the return conduit 22, and the chilled water to which the heat is transferred in the heat exchanger 8 is branched off 25. And, it is sent to the cooling tower 1 through the return pipe line 9 and radiates heat there, thereby forming a return route of cold heat transfer.
【００２８】以上のように本発明によれば、冬期におい
ても、屋外に設置された冷却塔１を利用して、外気によ
り冷却水を例えば５℃〜１０℃に冷却し、室内に設置し
た熱交換器で冷水と熱交換し例えば７℃〜１２℃の冷水
を製造することが可能である。その際に、本発明におい
ては外気温度を冷熱源として利用して冷水を製造するた
め、動力源の大幅な省エネを図ることが可能である。As described above, according to the present invention, even in winter, the cooling tower 1 installed outdoors is used to cool the cooling water to, for example, 5 ° C. to 10 ° C. by the outside air, and the heat is installed indoors. It is possible to produce cold water of, for example, 7 ° C to 12 ° C by exchanging heat with cold water in an exchanger. At this time, according to the present invention, the outside air temperature is used as a cold heat source to produce cold water, so that it is possible to significantly save energy of the power source.
【００２９】また、夏期に使用する冷凍機を、例えばプ
レート式熱交換器に置換するだけで冬期の冷水製造が可
能になるので、既設の設備をそのまま利用することが可
能なので、設備の面でも省エネを図ることが可能であ
る。Further, since it is possible to produce cold water in winter by simply replacing the refrigerator used in summer with a plate heat exchanger, existing equipment can be used as it is. It is possible to save energy.
【００３０】さらに、本発明によれば、冬期の運転にお
いても、冷水循環系と冷却水循環系とを分離しているの
で、冷水の汚染が問題と成らず、従って密閉式の冷却塔
であろうと開放式の冷却塔であろうと自由に選択し採用
することが可能である。また、冬期の運転においても、
冷水循環系のみを冷水ポンプにより循環させればよいの
で、冷水ポンプの揚程が大きく成りすぎることも回避す
ることが可能である。Further, according to the present invention, since the cold water circulation system and the cooling water circulation system are separated even in the operation in winter, the contamination of the cold water does not pose a problem, and therefore, the closed cooling tower may be used. It is possible to freely select and adopt an open type cooling tower. Also during winter driving,
Since only the cold water circulation system needs to be circulated by the cold water pump, it is possible to prevent the head of the cold water pump from becoming too large.
【００３１】また、本発明に基づく冷水製造システムの
通常の動作においては、第１の温度制御弁１３を閉止
し、第２の温度制御弁１４を開放して冷水を循環させて
いるが、冷水の温度が下がりすぎた場合には、第１の温
度制御弁１３を開放し、第２の温度制御弁１４を閉止す
ることにより、冷却塔１を迂回運転させることが可能で
あり、その結果、冷却水の温度を最適に制御することが
可能である。なお、冷却水の温度制御は、冷却塔１のフ
ァンのオンオフ、あるいは回転数を制御することによっ
ても行うことが可能である。かかる温度制御を行う場合
には、本発明によれば、夏期冷凍機使用時の自動制御シ
ステムを利用することが可能であり、その設定温度の変
更により冬期においても最適に温度制御することが可能
である。Further, in the normal operation of the cold water production system according to the present invention, the first temperature control valve 13 is closed and the second temperature control valve 14 is opened to circulate the cold water. When the temperature of the cooling tower 1 is too low, the first temperature control valve 13 is opened and the second temperature control valve 14 is closed, so that the cooling tower 1 can be detoured, and as a result, It is possible to optimally control the temperature of the cooling water. The temperature control of the cooling water can also be performed by turning on / off the fan of the cooling tower 1 or controlling the rotation speed. In the case of performing such temperature control, according to the present invention, it is possible to use an automatic control system when using a summer refrigerator, and it is possible to optimally control temperature even in winter by changing the set temperature. Is.
【００３２】[0032]
【効果】以上のように、本発明によれば、冷水の汚染や
冷水ポンプの揚程を問題とせずに、冬期においても、夏
期に使用する冷凍機をプレート式熱交換器に置換するだ
けで、最適な室内冷房を省エネで実施することができ
る。[Effects] As described above, according to the present invention, it is possible to replace the refrigerator used in the summer with the plate heat exchanger even in the winter, without causing the pollution of the cold water or the head of the cold water pump. Optimal indoor cooling can be implemented with energy saving.
【図１】本発明に基づく冷水製造システムの概略的な構
成図である。FIG. 1 is a schematic configuration diagram of a cold water production system according to the present invention.
１ 冷却塔 ３ 冷却水ポンプ ４ 第１の弁手段 ５ 冷凍機 ７ 第２の弁手段 ８ 熱交換器 １０ 第３の弁手段 １１ 第４の弁手段 １２ 迂回路 １３ 第１の温度制御弁 １４ 第２の温度制御弁 １６ 第５の弁手段 １８ 第６の弁手段 ２１ 第７の弁手段 ２４ 第８の弁手段 1 Cooling Tower 3 Cooling Water Pump 4 First Valve Means 5 Refrigerator 7 Second Valve Means 8 Heat Exchanger 10 Third Valve Means 11 Fourth Valve Means 12 Bypass 13 First Temperature Control Valve 14th 2 temperature control valve 16 5th valve means 18 6th valve means 21 7th valve means 24 8th valve means
Claims (2)
より熱交換器又は冷凍機のいずれか一方に選択的に送る
ことが可能であると共に、弁手段の切換により上記熱交
換器又は上記冷凍機からの戻り冷却水を上記冷却塔に戻
すことが可能なように構成された冷却水循環系と、 上記熱交換器又は上記冷凍機のいずれか一方からの送り
冷水を弁手段の切換により負荷に送ることが可能である
と共に、弁手段の切換により負荷からの戻り冷水を上記
熱交換器又は上記冷凍機のいずれか一方に戻すことが可
能なように構成された負荷側冷水循環系と、 から構成された冷水製造システムにおいて、 夏期には、冷却塔からの冷却水を冷凍機に送りその冷凍
機からの戻り冷却水を冷却塔に戻すように弁手段を切り
換えると共に、上記冷凍機からの冷水を負荷に送りその
負荷からの戻り冷水を上記冷凍機に戻すように弁手段が
切り換えられ、 冬期には、冷却塔からの冷却水を熱交換器に送りその熱
交換器からの戻り冷却水を冷却塔に戻すように弁手段を
切り換えると共に、上記熱交換器からの冷水を負荷に送
りその負荷からの戻り冷水を上記熱交換器に戻すように
弁手段が切り換えられることを特徴とする、冷水製造シ
ステム。1. The cooling water sent from a cooling tower can be selectively sent to either a heat exchanger or a refrigerator by switching valve means, and the heat exchanger or the above-mentioned heat exchanger can be switched by switching valve means. A cooling water circulation system configured to be able to return the return cooling water from the refrigerator to the cooling tower, and feed cold water from either the heat exchanger or the refrigerator by switching valve means. A load side cold water circulation system configured to be capable of being sent to a load and returning the return cold water from the load to either the heat exchanger or the refrigerator by switching the valve means. In the cold water production system consisting of, in the summer, the cooling water from the cooling tower is sent to the refrigerator and the valve means is switched so that the return cooling water from the refrigerator is returned to the cooling tower. Negative cold water The cooling water from the load is returned to the refrigerator, and in the winter, the cooling water from the cooling tower is sent to the heat exchanger and the returning cooling water from the heat exchanger is returned to the cooling tower. A chilled water production system, characterized in that the valve means is switched so as to return it to the heat exchanger and the valve means is switched so as to send the cold water from the heat exchanger to the load and return the chilled water from the load to the heat exchanger. .
路と復路とを短絡することが可能な弁手段が設けられて
おり、その弁手段が系を流れる冷却水の温度に応じて開
閉する温度制御弁であることを特徴とする、請求項１に
記載の冷水製造システム。2. The cooling water circulation system is provided with valve means capable of bypassing the cooling tower and short-circuiting the forward and return paths, the valve means depending on the temperature of the cooling water flowing through the system. The chilled water production system according to claim 1, which is a temperature control valve that opens and closes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP05803493A JP3260894B2 (en) | 1993-02-24 | 1993-02-24 | Cold water production system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP05803493A JP3260894B2 (en) | 1993-02-24 | 1993-02-24 | Cold water production system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06249471A true JPH06249471A (en) | 1994-09-06 |
| JP3260894B2 JP3260894B2 (en) | 2002-02-25 |
Family
ID=13072661
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP05803493A Expired - Lifetime JP3260894B2 (en) | 1993-02-24 | 1993-02-24 | Cold water production system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3260894B2 (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003121024A (en) * | 2001-10-11 | 2003-04-23 | Takasago Thermal Eng Co Ltd | Integrated heat source system |
| JP2004251485A (en) * | 2003-02-18 | 2004-09-09 | Innotech Corp | Chiller device |
| KR100791424B1 (en) * | 2006-05-22 | 2008-01-07 | 허인랑 | System for producing chilled water |
| JP2008215730A (en) * | 2007-03-05 | 2008-09-18 | Hitachi Plant Technologies Ltd | Cooling system and method using free cooling |
| JP2009193245A (en) * | 2008-02-13 | 2009-08-27 | Hitachi Plant Technologies Ltd | Cooling system for electronic equipment |
| JP2010071512A (en) * | 2008-09-17 | 2010-04-02 | Takasago Thermal Eng Co Ltd | Air conditioning heat source system using cooling tower |
| JP2011208867A (en) * | 2010-03-29 | 2011-10-20 | Takasago Thermal Eng Co Ltd | Cold air supplying equipment to parked aircraft |
| JP2014070864A (en) * | 2012-10-01 | 2014-04-21 | Kannetsu:Kk | Cooling system |
| CN106765762A (en) * | 2016-12-23 | 2017-05-31 | 新疆绿色使者空气环境技术有限公司 | Water-saving whole year operation air-conditioning device |
| CN114061171A (en) * | 2021-11-05 | 2022-02-18 | 红塔烟草(集团)有限责任公司 | Lithium bromide refrigerator system with cooling water temperature control device |
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|---|---|---|---|---|
| JPS5640033A (en) * | 1979-09-07 | 1981-04-16 | Fujitsu Ltd | Cold water type cooling system utilizing open air for cooling water |
| JPS61128043A (en) * | 1984-11-28 | 1986-06-16 | Shinryo Air Conditioning Co Ltd | Air conditioner having heat accumulating circuit |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003121024A (en) * | 2001-10-11 | 2003-04-23 | Takasago Thermal Eng Co Ltd | Integrated heat source system |
| JP2004251485A (en) * | 2003-02-18 | 2004-09-09 | Innotech Corp | Chiller device |
| KR100791424B1 (en) * | 2006-05-22 | 2008-01-07 | 허인랑 | System for producing chilled water |
| JP2008215730A (en) * | 2007-03-05 | 2008-09-18 | Hitachi Plant Technologies Ltd | Cooling system and method using free cooling |
| JP2009193245A (en) * | 2008-02-13 | 2009-08-27 | Hitachi Plant Technologies Ltd | Cooling system for electronic equipment |
| JP2010071512A (en) * | 2008-09-17 | 2010-04-02 | Takasago Thermal Eng Co Ltd | Air conditioning heat source system using cooling tower |
| JP2011208867A (en) * | 2010-03-29 | 2011-10-20 | Takasago Thermal Eng Co Ltd | Cold air supplying equipment to parked aircraft |
| JP2014070864A (en) * | 2012-10-01 | 2014-04-21 | Kannetsu:Kk | Cooling system |
| CN106765762A (en) * | 2016-12-23 | 2017-05-31 | 新疆绿色使者空气环境技术有限公司 | Water-saving whole year operation air-conditioning device |
| CN106765762B (en) * | 2016-12-23 | 2022-08-16 | 新疆绿色使者空气环境技术有限公司 | Water-saving all-year operation air conditioner |
| CN114061171A (en) * | 2021-11-05 | 2022-02-18 | 红塔烟草(集团)有限责任公司 | Lithium bromide refrigerator system with cooling water temperature control device |
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| Publication number | Publication date |
|---|---|
| JP3260894B2 (en) | 2002-02-25 |
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