JPH07113466B2 - Heating / cooling system using heat pump - Google Patents
Heating / cooling system using heat pumpInfo
- Publication number
- JPH07113466B2 JPH07113466B2 JP28363690A JP28363690A JPH07113466B2 JP H07113466 B2 JPH07113466 B2 JP H07113466B2 JP 28363690 A JP28363690 A JP 28363690A JP 28363690 A JP28363690 A JP 28363690A JP H07113466 B2 JPH07113466 B2 JP H07113466B2
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- heat
- cooling
- hot water
- load
- heating
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Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明はヒートポンプや冷凍機を用いた加熱（冷却）シ
ステムに関し、特に地域暖（冷）房・給湯などを行なう
大型加熱または冷却システムに好適なヒートポンプを用
いた暖（冷）房・給湯システムに関するものである。The present invention relates to a heating (cooling) system using a heat pump or a refrigerator, and is particularly suitable for a large-scale heating or cooling system for performing district heating (cooling) and hot water supply. The present invention relates to a warm (cool) air conditioner / hot water supply system using a simple heat pump.
なお、本明細書における熱回収装置とは、単に廃水等の
人工的廃熱の回収装置だけでなく、井戸水、海水など外
気より高温のエネルギー源からの熱回収装置を含むもの
とする。It should be noted that the heat recovery device in this specification includes not only a device for recovering artificial waste heat such as waste water, but also a device for recovering heat from an energy source having a temperature higher than the outside air such as well water and sea water.
通常の地域暖房・給湯システムは、温水ボイラ等安価な
化石燃料を燃焼させて、温水を得る方法が主流である。
この方式の場合は、冷房・給湯等の温水利用方法に多少
の無駄があってもボイラや燃料のコストが安いので経済
的である。In general district heating and hot water supply systems, a method of obtaining hot water by burning inexpensive fossil fuel such as a hot water boiler is mainstream.
This method is economical because the cost of the boiler and fuel is low even if there is some waste in the use of hot water such as cooling and hot water supply.
しかしながら、最近、大気中に放出される二酸化炭素等
による温室効果により、地球の温暖化が問題になってい
る。このため、化石燃料を大量に使用する地域暖冷房・
給湯設備においても、将来大幅に一次エネルギーを削減
しなければならないと思われる。However, the global warming has recently become a problem due to the greenhouse effect of carbon dioxide and the like released into the atmosphere. For this reason, district heating and cooling that uses a large amount of fossil fuel
Even in hot water supply facilities, it seems that primary energy must be significantly reduced in the future.
このため、その手段としてヒートポンプを用いた地域暖
冷房・給湯システムが推奨されている。For this reason, a district heating / cooling / hot water supply system using a heat pump is recommended as a means for that.
第４図はヒートポンプを用いた各種の地域暖冷房・給湯
システムの説明図である。図中、1,2は第１の基本シス
テムのそれぞれ冬期と夏期のフローシートである。３は
系外熱回収装置,4は熱供給センター、５は加熱負荷、６
は冷房負荷、７は加熱負荷５からの熱回収装置である系
内熱回収装置である。FIG. 4 is an explanatory view of various district heating / cooling / hot water supply systems using heat pumps. In the figure, 1 and 2 are flowsheets of the first basic system for winter and summer, respectively. 3 is an external heat recovery device, 4 is a heat supply center, 5 is a heating load, 6
Is a cooling load, and 7 is an in-system heat recovery device that is a heat recovery device from the heating load 5.
図示するように、冬、夏とも温水配管８、冷水配管９に
より温水、冷水を流し、それぞれ加熱負荷５、冷房負荷
６に供給している。そして冬だけ熱源水を熱回収配管10
に流し、熱回収装置７から熱回収を行なっている。ま
た、11,12は特願平２−146889号で提案されている第２
の基本システムにおけるそれぞれ冬期、夏期のフローシ
ートである。冷水配管９は第１の基本システムと同一で
あるが、温水配管８の戻り配管が熱回収装置10の戻りと
共有となった中間温水管15となっている。また、13,1
3′は熱回収を行なわない従来の４管システムの冬期、
夏期のフローシートである。14,14′は冬は温水供給、
夏は冷水供給を行なう従来の２管システムの冬期、夏期
のフローシートである。As shown in the drawing, hot water and cold water are made to flow through a hot water pipe 8 and a cold water pipe 9 in winter and summer, and are supplied to a heating load 5 and a cooling load 6, respectively. And heat recovery pipes for heat source water only in winter 10
And heat is recovered from the heat recovery device 7. Also, 11 and 12 are the second proposed in Japanese Patent Application No. 2-146889.
These are the flow sheets for the basic system of winter and summer respectively. The cold water pipe 9 is the same as that of the first basic system, but the return pipe of the hot water pipe 8 is an intermediate hot water pipe 15 shared with the return of the heat recovery device 10. Also, 13,1
3'is the conventional 4-tube system without heat recovery in winter,
This is a summer flow sheet. 14,14 'is hot water supply in winter,
Summer is a flow sheet for a conventional two-pipe system for supplying cold water in winter and summer.
しかしながら、第４図の第１の基本システムの場合は、
主配管が６本であり、システムが複数且つ高価なものと
なる。また、第２の基本システムの場合でも、主配管が
５本となり、システムが複数且つ高価なものとなる。However, in the case of the first basic system shown in FIG.
Since there are 6 main pipes, the system becomes plural and expensive. Further, even in the case of the second basic system, the number of main pipes is 5, which makes the system plural and expensive.
また、４管式の従来システムの場合でも、負荷から熱回
収ができず、２管式従来システムでは冬にも冷房が必要
な場合や、給湯負荷がある場合に適用できないという欠
点があった。Further, even in the case of the conventional four-tube system, heat cannot be recovered from the load, and the conventional two-tube system has a drawback that it cannot be applied when cooling is required even in winter or when there is a hot water supply load.
本発明は上述の点に鑑みてなされたもので、主配管本数
が少なく且つ効率よく熱回収できるヒートポンプを用い
た加熱・冷却システムを提供することを目的とする。The present invention has been made in view of the above points, and an object of the present invention is to provide a heating / cooling system using a heat pump that has a small number of main pipes and can efficiently recover heat.
上記課題を解決するため本発明は、ヒートポンプ、冷凍
機、前記ヒートポンプにより加熱される複数の加熱負
荷、該ヒートポンプにより冷却される熱源流体を直接又
は間接的に加熱する熱回収装置、冷凍機により冷却され
る複数の冷却負荷、冷凍機を冷却する冷却装置、ヒート
ポンプと加熱負荷装置との間を流体を輸送するためのポ
ンプ及び連絡流路、冷凍機と冷却負荷及び冷却装置の間
を流体を輸送するためのポンプ及び連絡流路、ヒートポ
ンプと熱回収装置との間を流体を輸送するためのポンプ
及び連絡流路等により構成される加熱・冷却システムに
おいて、 冷却負荷が多い通常モードのときは冷却負荷から冷凍機
に戻る流体の独立流路を有し、冷却負荷が少ない僅少冷
却モードのときは冷却負荷から冷凍機に戻る独立流路の
流体の流れ方向を逆転させ、この流路にヒートポンプか
ら熱回収装置に至るヒートポンプ熱源流体を流れるよう
にする流路切替装置を有していることを特徴とする。In order to solve the above problems, the present invention provides a heat pump, a refrigerator, a plurality of heating loads heated by the heat pump, a heat recovery device that directly or indirectly heats a heat source fluid cooled by the heat pump, and a refrigerator. A plurality of cooling loads, a cooling device for cooling the refrigerator, a pump and a communication passage for transporting fluid between the heat pump and the heating load device, and a fluid transport between the refrigerator and the cooling load and cooling device In the heating / cooling system consisting of a pump and a communication flow path for cooling, a pump and a communication flow path for transporting the fluid between the heat pump and the heat recovery device, cooling is performed in the normal mode with a large cooling load. It has an independent flow path for the fluid that returns from the load to the refrigerator, and when the cooling load is small and the cooling mode is small, the flow of the fluid in the independent flow path that returns from the cooling load to the refrigerator A flow path switching device is provided which reverses the direction and allows a heat pump heat source fluid from the heat pump to the heat recovery device to flow in this flow path.
以下本発明の実例を図面に基づいて説明する。第１図は
本発明の実施例を示すヒートポンプを用いた冷暖房・給
湯システムの構成を示す図で、同図（ｂ）は冷暖房・給
湯システムの全体構成を示す図、同図（ａ）は熱供給セ
ンターの詳細を示す図である。本冷暖房・給湯システム
は、外部熱回収システム３、熱供給センター４及び地域
冷暖房・給湯負荷システム21及びこれらを接続する配管
により構成される。An example of the present invention will be described below with reference to the drawings. FIG. 1 is a diagram showing the configuration of an air conditioning / hot water supply system using a heat pump according to an embodiment of the present invention. FIG. 1 (b) is a diagram showing the overall configuration of the air conditioning / hot water supply system, and FIG. It is a figure which shows the detail of a supply center. The air conditioning / hot water supply system includes an external heat recovery system 3, a heat supply center 4, a district heating / cooling / hot water supply load system 21, and pipes connecting these.
第１図に示す実例は、季節として中間期か冬の場合で、
負荷は暖房負荷と給湯が多く、それ以外に多少の冷房負
荷がある場合である。熱供給センター４内でヒートポン
プ30により作られた温水は温水ポンプ31により温水供給
配管８及び枝管8a,8b,8c,8dを経由して、地域冷暖房・
給湯負荷システム21に供給され、暖房や給湯負荷に使わ
れる。そして温水戻り配管22を通って熱供給センター４
に戻る。一方、熱供給センター４内で冷凍機32により作
られた冷水は、冷水ポンプ33により冷水供給配管９及び
枝管9a,9bを経由して、地域冷暖房・給湯負荷システム2
1に供給され、冷房負荷に使われる。そして冷水戻り配
管を通って熱供給センター４内に戻される。戻ってきた
水は第１図の場合のように冷房負荷が多少ある場合には
流路切替装置24を通って配管34を経由する。従ってこの
運転モードの場合はバルブ35は閉じたままである。また
この運転モードの場合は、熱が足りなくなるので、図中
の外部熱回収システム３や地域冷暖房・給湯負荷システ
ム21に設けられた熱回収装置18で回収する必要がある。
外部熱回収システム３はごみ焼却発電装置等の復水器冷
却水、大型冷蔵庫等の冷凍機冷却水、熱機関オイルクー
ラ冷却水、エンジン冷却水、トランス冷却水、各種産業
プロセスの凝縮のための冷却、低温温泉などの比較的高
温の廃熱や海水、河川水等の低温熱源から熱回収を行な
う熱回収装置３と配管16,17により構成される。熱回収
装置18は地域冷暖房・給湯負荷システム21の負荷、即
ち、給湯負荷からの廃熱を熱回収用配管19,20を介して
従来棄てられていた廃熱を回収する熱回収装置である。
第２図は本発明の他の実施例を示すヒートポンプを用い
た冷暖房・給湯システムの構成を示す図で、同図（ｂ）
は冷暖房・給湯システムの全体構成を示す図、同図
（ａ）は熱供給センターの詳細を示す図である。構成は
第１図と同一であるが、季節として冬の場合で、負荷は
暖房＋給湯負荷が殆どでわずかに冷房負荷がある場合を
示した。温水の供給及び戻りは第１図と同じである。一
方、冷水の供給は同じであるが戻りは戻り管23ではなく
温水戻り配管22となる。このためバルブ35は開となる。The example shown in Fig. 1 is the case of the middle season or winter as the season,
The load is a large amount of heating load and hot water supply, and some cooling load other than that. The hot water produced by the heat pump 30 in the heat supply center 4 is heated by the hot water pump 31 through the hot water supply pipe 8 and the branch pipes 8a, 8b, 8c, 8d, and the district heating / cooling
It is supplied to the hot water supply load system 21 and used for heating and hot water supply load. Then, through the hot water return pipe 22, the heat supply center 4
Return to. On the other hand, the chilled water produced by the refrigerator 32 in the heat supply center 4 passes through the chilled water supply pipe 9 and the branch pipes 9a, 9b by the chilled water pump 33, and the district cooling / heating / hot water supply load system 2
It is supplied to 1 and used for cooling load. Then, it is returned to the heat supply center 4 through the cold water return pipe. The returned water passes through the flow path switching device 24 and the pipe 34 when there is some cooling load as in the case of FIG. Therefore, in this operating mode, the valve 35 remains closed. In addition, in this operation mode, the heat is insufficient, so it is necessary to recover the heat with the heat recovery device 3 provided in the external heat recovery system 3 and the district heating / cooling / hot water supply load system 21 in the figure.
The external heat recovery system 3 is used for condensing condenser cooling water such as refuse incineration power generator, refrigerator cooling water such as large refrigerator, heat engine oil cooler cooling water, engine cooling water, transformer cooling water, and various industrial processes. It is composed of heat recovery device 3 and pipes 16 and 17 for recovering heat from relatively high-temperature waste heat such as cooling and low-temperature hot springs and low-temperature heat sources such as seawater and river water. The heat recovery device 18 is a load of the district heating / cooling / hot water supply load system 21, that is, a heat recovery device that recovers the waste heat from the hot water supply load via the heat recovery pipes 19 and 20.
FIG. 2 is a diagram showing the configuration of an air conditioning / hot water supply system using a heat pump according to another embodiment of the present invention.
Is a diagram showing an overall configuration of an air conditioning / hot water supply system, and FIG. 7 (a) is a diagram showing details of a heat supply center. Although the configuration is the same as that of FIG. 1, it is shown that the season is winter and the load is almost the heating + hot water supply load and a slight cooling load. The supply and return of warm water is the same as in FIG. On the other hand, the supply of cold water is the same, but the return is not the return pipe 23 but the hot water return pipe 22. Therefore, the valve 35 is opened.
その理由は、この運転モードの場合は特に熱が第１図の
場合よりも足りなくなるので、図中の外部熱回収システ
ム３の他、熱回収装置18からの熱回収が不可欠となる。
このため、第１図では冷水の戻り配管となっていた戻り
管23を熱回収用の流体が熱供給センター４から地域冷暖
房・給湯負荷システム21に供給され熱回収する。このた
め、流路切替装置24により配管26と戻り管23が連通さ
れ、熱源ポンプ25が駆動されて、第１図の場合と逆の流
れが配管23内に生じる。この結果、熱回収装置18から十
分な熱を回収することができる。The reason is that in this operation mode, the heat is particularly insufficient compared to the case of FIG. 1, so heat recovery from the heat recovery system 18 in addition to the external heat recovery system 3 in the figure is indispensable.
Therefore, a fluid for heat recovery is supplied from the heat supply center 4 to the district cooling / heating / hot water supply load system 21 through the return pipe 23, which is the return pipe for cold water in FIG. 1, to recover heat. Therefore, the pipe 26 and the return pipe 23 are communicated with each other by the flow path switching device 24, the heat source pump 25 is driven, and a flow reverse to that in the case of FIG. As a result, sufficient heat can be recovered from the heat recovery device 18.
第３図は本発明の他の実施例を示すヒートポンプを用い
た冷暖房・給湯システムの構成を示す図で、同図（ｂ）
は冷暖房・給湯システムの全体構成を示す図、同図
（ａ）は熱供給センターの詳細を示す図である。FIG. 3 is a diagram showing the configuration of a cooling / heating / hot water supply system using a heat pump according to another embodiment of the present invention.
Is a diagram showing an overall configuration of an air conditioning / hot water supply system, and FIG. 7 (a) is a diagram showing details of a heat supply center.
温水及び冷水の供給は第１図と全く同一であるが季節と
して夏の場合で、冷房負荷と給湯負荷がある場合を示し
ている。この運転モードでは、冷房負荷が多くなるので
その排熱のほうが多くなり熱回収の必要性はなくなる。
このためこのモードでは、放熱源27が必要となる。放熱
源27は冷却塔、海水、河川水等があり、配管28、29を介
して熱が送られる。The supply of hot water and cold water is exactly the same as in FIG. 1, but the case of summer as a season is shown, and there is a cooling load and a hot water supply load. In this operation mode, the cooling load increases, so the amount of exhaust heat is increased and the need for heat recovery is eliminated.
Therefore, in this mode, the heat radiation source 27 is required. The heat radiation source 27 includes a cooling tower, sea water, river water, etc., and heat is sent through the pipes 28, 29.
以上説明したように本発明のヒートポンプを用いた加熱
・冷却システムは、冷水の戻り管と熱源水の往管共通に
し、切替装置を設けたので、下記のような優れた効果を
有する。As described above, the heating / cooling system using the heat pump of the present invention has the following excellent effects because the return pipe of the cold water and the outflow pipe of the heat source water are shared and the switching device is provided.
（１）従来主配管から５本必要であったのが、４本にす
ることができるので、地域冷暖房に適用した場合、シス
テムが簡単となると同時にコストが極めて安価となる。(1) Conventionally, five pipes were required from the main pipe, but four pipes can be used. Therefore, when applied to district heating and cooling, the system becomes simple and at the same time the cost is extremely low.
（２）効率良く熱回収ができるので、非常に省エネルギ
ーとなる。(2) Since heat can be efficiently recovered, it is very energy-saving.
第１図は本発明の実施例を示すヒートポンプを用いた冷
暖房・給湯システムの構成を示す図で、同図（ｂ）は冷
暖房・給湯システムの全体構成を示す図、同図（ａ）は
熱供給センターの詳細を示す図、第２図は本発明の他の
実施例を示すヒートポンプを用いた冷暖房・給湯システ
ムの構成を示す図で、同図（ｂ）は冷暖房・給湯システ
ムの全体構成を示す図、同図（ａ）は熱供給センターの
詳細を示す図、第３図は本発明の他の実施例を示すヒー
トポンプを用いた冷暖房・給湯システムの構成を示す図
で、同図（ｂ）は冷暖房・給湯システムの全体構成を示
す図、同図（ａ）は熱供給センターの詳細を示す図、第
４図はヒートポンプを用いた各種の地域暖冷房・給湯シ
ステムの説明図である。 図中、３……外部熱回収システム、４……熱供給センタ
ー、８……温水供給配管、９……冷却供給配管、16,17
……配管、18……熱回収装置、19,20……熱回収用配
管、21……地域冷暖房・給湯負荷システム、22……温水
戻り配管、23……戻り管、24……流路切替装置、25……
熱源ポンプ、26……配管、27……放熱源、28,29……配
管、30……ヒートポンプ、31……温水ポンプ、32……冷
凍機、33……冷水ポンプ、34……配管、35……バルブ。FIG. 1 is a diagram showing the configuration of an air conditioning / hot water supply system using a heat pump according to an embodiment of the present invention. FIG. 1 (b) is a diagram showing the overall configuration of the air conditioning / hot water supply system, and FIG. FIG. 2 is a diagram showing details of the supply center, FIG. 2 is a diagram showing a configuration of an air conditioning / hot water supply system using a heat pump according to another embodiment of the present invention, and FIG. 2 (b) is a diagram showing the overall configuration of the air conditioning / hot water supply system. The figure, the figure (a) is the figure which shows the details of the heat supply center, the figure 3 is the figure which shows the constitution of the heating and cooling / hot water supply system which uses the heat pump which shows the other execution example of this invention, the figure (b) ) Is a diagram showing the overall configuration of an air conditioning / hot water supply system, FIG. 4 (a) is a diagram showing details of a heat supply center, and FIG. 4 is an explanatory diagram of various district heating / cooling / hot water supply systems using heat pumps. In the figure, 3 ... External heat recovery system, 4 ... Heat supply center, 8 ... Hot water supply pipe, 9 ... Cooling supply pipe, 16, 17
…… Piping, 18 …… Heat recovery device, 19,20 …… Heat recovery piping, 21 …… Regional cooling and heating / hot water supply load system, 22 …… Hot water return pipe, 23 …… Return pipe, 24 …… Switching flow path Device, 25 ……
Heat source pump, 26 ... Piping, 27 ... Radiation source, 28,29 ... Piping, 30 ... Heat pump, 31 ... Hot water pump, 32 ... Refrigerator, 33 ... Cold water pump, 34 ... Piping, 35 ……valve.
Claims (1)
により加熱される複数の加熱負荷、該ヒートポンプによ
り冷却される熱源流体を直接又は間接的に加熱する熱回
収装置、前記冷凍機により冷却される複数の冷却負荷、
前記冷凍機を冷却する冷却装置、前記ヒートポンプと加
熱負荷装置との間を流体を輸送するためのポンプ及び連
絡流路、前記冷凍機と冷却負荷及び冷却装置の間を流体
を輸送するためのポンプ及び連絡流路、前記ヒートポン
プと熱回収装置との間を流体を輸送するためのポンプ及
び連絡流路等により構成される加熱・冷却システムにお
いて、 前記冷却負荷が多い通常モードのときは冷却負荷から冷
凍機に戻る流体の独立流路を有し、 前記冷却負荷が少ない僅少冷却モードのときは前記冷却
負荷から冷凍機に戻る独立流路の流体の流れ方向を逆転
させ、この流路に前記ヒートポンプから熱回収装置に至
るヒートポンプ熱源流体を流れるようにする流路切替装
置を有していることを特徴とするヒートポンプを用いた
加熱・冷却システム。1. A heat pump, a refrigerator, a plurality of heating loads heated by the heat pump, a heat recovery device for directly or indirectly heating a heat source fluid cooled by the heat pump, and a plurality of coolers cooled by the refrigerator. Cooling load,
A cooling device for cooling the refrigerator, a pump and a communication channel for transporting fluid between the heat pump and the heating load device, a pump for transporting fluid between the refrigerator and the cooling load and cooling device And a communication flow path, a heating / cooling system configured by a pump and a communication flow path for transporting a fluid between the heat pump and the heat recovery device, wherein the cooling load is changed from the cooling load when the cooling load is in a normal mode. Having a separate flow path for the fluid returning to the refrigerator, when the cooling load is small and the cooling mode is small, the flow direction of the fluid in the independent flow path returning to the refrigerator from the cooling load is reversed, and the heat pump is provided in this flow path. A heat / cooling system using a heat pump having a flow path switching device that allows a heat pump heat source fluid to flow from the heat recovery device to the heat recovery device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28363690A JPH07113466B2 (en) | 1990-10-22 | 1990-10-22 | Heating / cooling system using heat pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28363690A JPH07113466B2 (en) | 1990-10-22 | 1990-10-22 | Heating / cooling system using heat pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04158174A JPH04158174A (en) | 1992-06-01 |
| JPH07113466B2 true JPH07113466B2 (en) | 1995-12-06 |
Family
ID=17668088
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP28363690A Expired - Lifetime JPH07113466B2 (en) | 1990-10-22 | 1990-10-22 | Heating / cooling system using heat pump |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07113466B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101305448B1 (en) * | 2012-06-11 | 2013-09-06 | 서울대학교산학협력단 | Energy-saving system of building using radiation cooling and heating method and using non-used energy in building |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2681439B2 (en) * | 1993-04-06 | 1997-11-26 | 昭己 洲澤 | Building heating / cooling device |
| JP5032181B2 (en) * | 2007-04-05 | 2012-09-26 | 三機工業株式会社 | Heat consumer device for district cooling and heating system and operation method thereof |
| JP5697481B2 (en) * | 2010-02-23 | 2015-04-08 | 中部電力株式会社 | Heating and cooling device |
| JP7309317B2 (en) * | 2017-11-14 | 2023-07-18 | 高砂熱学工業株式会社 | Installation method for vertical piping |
-
1990
- 1990-10-22 JP JP28363690A patent/JPH07113466B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101305448B1 (en) * | 2012-06-11 | 2013-09-06 | 서울대학교산학협력단 | Energy-saving system of building using radiation cooling and heating method and using non-used energy in building |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04158174A (en) | 1992-06-01 |
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