JPS63311032A - Cold heat accumulating and hot heat accumulation system - Google Patents
Cold heat accumulating and hot heat accumulation systemInfo
- Publication number
- JPS63311032A JPS63311032A JP62142143A JP14214387A JPS63311032A JP S63311032 A JPS63311032 A JP S63311032A JP 62142143 A JP62142143 A JP 62142143A JP 14214387 A JP14214387 A JP 14214387A JP S63311032 A JPS63311032 A JP S63311032A
- Authority
- JP
- Japan
- Prior art keywords
- heat
- temperature
- hot
- pump
- cold
- 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.)
- Pending
Links
- 238000009825 accumulation Methods 0.000 title abstract 13
- 238000005338 heat storage Methods 0.000 claims description 38
- 238000006243 chemical reaction Methods 0.000 claims description 6
- 230000004927 fusion Effects 0.000 claims description 5
- 239000011232 storage material Substances 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 33
- 238000010438 heat treatment Methods 0.000 abstract description 19
- 239000003795 chemical substances by application Substances 0.000 abstract description 18
- 238000000034 method Methods 0.000 abstract description 4
- 239000000203 mixture Substances 0.000 abstract description 3
- 238000007599 discharging Methods 0.000 abstract 3
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 239000004563 wettable powder Substances 0.000 abstract 1
- 230000000887 hydrating effect Effects 0.000 description 17
- 238000006703 hydration reaction Methods 0.000 description 13
- 238000001816 cooling Methods 0.000 description 11
- 239000007788 liquid Substances 0.000 description 9
- 238000004378 air conditioning Methods 0.000 description 5
- 239000000498 cooling water Substances 0.000 description 5
- 230000005494 condensation Effects 0.000 description 4
- 238000009833 condensation Methods 0.000 description 4
- 230000005855 radiation Effects 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- 230000008020 evaporation Effects 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 1
- 229910001628 calcium chloride Inorganic materials 0.000 description 1
- 239000001110 calcium chloride Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は蓄冷剤の融解熱或いは反応熱を利用した蓄冷シ
ステムの改良に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an improvement in a cold storage system that utilizes the heat of fusion or reaction heat of a cold storage agent.
現在、電力負荷の昼夜間の格差が著しく、この電力負荷
の平準化が社会的課題として取シ上げられている。空気
調和用電力については、昼間の電力需要を夜間に移行す
べく、空気調和用冷熱を夜間の電力を用いて貯え、昼間
に仁の貯えた冷熱を供給する、蓄冷式空気調和システム
が導入されている。Currently, there is a significant difference in power load between day and night, and equalization of this power load is being raised as a social issue. Regarding electricity for air conditioning, in order to shift daytime electricity demand to nighttime, a cold storage air conditioning system has been introduced that stores cold energy for air conditioning using nighttime electricity and supplies the stored cold energy during the day. ing.
この蓄冷式空気調和システムにおける冷熱を貯える方法
として、氷等の融解熱や水和反応等の反応熱を利用した
蓄冷方法がある。ここでは、これらを代表して水和反応
を利用した蓄冷システムについて説明するが、以下氷蓄
冷等の融解熱や他の反応熱を利用した蓄冷システムにつ
いても同様なことが言える。As a method for storing cold heat in this cold storage type air conditioning system, there is a cold storage method that utilizes the heat of melting of ice or the like or the heat of reaction such as hydration reaction. Here, a cold storage system that utilizes a hydration reaction will be described as a representative example of these, but the same can be said below for a cold storage system that uses heat of fusion such as ice cold storage or other heat of reaction.
水和反応を利用した蓄冷システムは、下式に代表される
水和反応を可逆的に利用して、蓄冷、放冷を行うもので
ある。A cold storage system that utilizes a hydration reaction reversibly utilizes a hydration reaction represented by the following formula to store and release cold.
Ｍ ＋ｎＨ２Ｏ＃ Ｍ−ｎＨ２Ｏ＋Ｈｋｃａｌ（Ｍ：水
和剤、ｎ：水和数＋ Ｍ−ｎＨｚｏ：水和物）水和剤（
Ｍ）としては、例えば塩化カルシウム（ＣａＣＪｚ）等
の無機塩類、テトラハイドロフラン（Ｃ４Ｈ８０）、二
酸化炭素（Ｃｏ２）、さらＫ Ｒ１１（Ｃ（Ｊ３Ｆ）、
Ｒ１２（ｃｃ）２Ｆ２）等のフロン等が用いられている
。M + nH2O# M-nH2O+Hkcal (M: hydrating agent, n: hydration number + M-nHzo: hydrate) hydrating agent (
Examples of M) include inorganic salts such as calcium chloride (CaCJz), tetrahydrofuran (C4H80), carbon dioxide (Co2), and KR11(C(J3F)).
Freon such as R12(cc)2F2) is used.
第４図は、従来の水和剤の水和反応を利用した蓄冷シス
テムを示している。第４図において１は蓄冷槽、２は水
と水和剤からなる混合液、３は蓄冷槽内の熱交換コイル
である。FIG. 4 shows a conventional cold storage system that utilizes the hydration reaction of a hydrating agent. In FIG. 4, 1 is a cold storage tank, 2 is a mixed liquid consisting of water and a hydrating agent, and 3 is a heat exchange coil in the cold storage tank.
蓄冷時は、蒸発器７、圧縮機９、凝縮器１０、膨張弁ル
から力るヒートポンプによシ冷水８をつく）、これを循
環ポンプ１４によシ蓄冷槽内の熱交換コイル３へ送って
、水と水和剤からなる混合液２を冷却し、水和物を生成
させる。凝縮器１０では、ヒートポンプ媒体の凝縮熱が
冷却水１１で取シ出され、冷却水１１は循環ポンプ１５
によ）冷却塔１３へ送られる。During cold storage, cold water 8 is generated by a heat pump powered by an evaporator 7, a compressor 9, a condenser 10, and an expansion valve), and this is sent to a heat exchange coil 3 in a cold storage tank by a circulation pump 14. Then, the mixed liquid 2 consisting of water and a hydrating agent is cooled to produce a hydrate. In the condenser 10, the heat of condensation of the heat pump medium is extracted by the cooling water 11, and the cooling water 11 is passed through the circulation pump 15.
) is sent to the cooling tower 13.
放冷時は、貯えられた冷熱を熱交換コイル３よシ冷水と
して取シ出し、その冷水を循環ポンプ１４、三方弁４を
経由して冷房負荷６へ送シ、冷熱を供給する。冷水はそ
の後三方弁５を経由して熱交換コイル３へと循環される
。During cooling, the stored cold heat is taken out as cold water through the heat exchange coil 3, and the cold water is sent to the cooling load 6 via the circulation pump 14 and the three-way valve 4 to supply cold heat. The cold water is then circulated to the heat exchange coil 3 via the three-way valve 5.
水和反応を利用するこの方法は、水和反応熱が大きいの
で、蓄冷剤の単位重量あたｂの蓄冷量（蓄熱密度）が大
きく、蓄冷槽をコン、Ｒり）Ｋすることができるという
長所がある。This method, which utilizes a hydration reaction, has a large heat of hydration reaction, so the amount of cool storage (heat storage density) per unit weight of the cool storage agent is large, and the cold storage tank can be heated. It has its advantages.
冬期暖房時の蓄熱槽として兼用する場合は、蓄冷槽内熱
交換コイル３を利用し、ヒートポンプの凝縮器１０よシ
得られた熱によシ、蓄冷槽内の水および水和剤の混合液
２を加熱して、この混合液の顕熱蓄熱を行なうこととな
る。If it is also used as a heat storage tank during winter heating, the heat exchange coil 3 in the cold storage tank is used to transfer the heat obtained from the condenser 10 of the heat pump to the mixed liquid of water and hydrating agent in the cold storage tank. 2 will be heated to store sensible heat in this mixed liquid.
しかし、蓄冷時の水和反応熱に匹敵する蓄熱時の顕熱蓄
熱量を得るためには、ヒートポンプの凝縮器１０の凝縮
温度つまシ蓄熱槽内温度を高くする必要がある。例えば
、暖房に必要な温度５・Ｏ′℃程度を利用するためには
蓄熱槽内温度を５０℃以上の温度まで加熱する必要があ
る。この場合、水和剤の熱安定性及び高温における腐食
性の問題、容器の耐圧性の問題、さらには加熱のための
昇温幅が大きくなシ、ヒートポンプの成績係数（ＣＯＰ
）が低下する等の問題が発生するから、第４図に示す蓄
冷槽をそのまま暖房時の蓄熱槽と兼用することは困難で
あった。However, in order to obtain an amount of sensible heat storage during heat storage comparable to the heat of hydration reaction during cold storage, it is necessary to increase the condensation temperature of the condenser 10 of the heat pump and the temperature inside the heat storage tank. For example, in order to utilize the temperature of about 5.O'°C required for heating, it is necessary to heat the internal temperature of the heat storage tank to a temperature of 50°C or higher. In this case, there are problems with the thermal stability of the hydrating agent and its corrosivity at high temperatures, the pressure resistance of the container, and the fact that the temperature rise range for heating is large, and the coefficient of performance (COP) of the heat pump.
), it has been difficult to use the cold storage tank shown in FIG. 4 as a heat storage tank during heating.
本発明は前記問題点を解決するために、融解熱或いは反
応熱を利用した蓄冷槽を有する蓄冷システムにおいて、
蓄熱を必要とする場合はヒートポンプの出熱（凝縮熱）
を上記蓄冷槽で蓄冷剤の顕熱として貯え、放熱時には上
記の貯えた熱をヒートポンプ入熱（蒸発熱）として利用
することを特徴とする蓄冷・蓄熱システムを提案するも
のである。すなわち、本発明においては、夏期に融解熱
や反応熱を利用して冷房を行なう蓄冷システムにおいて
、冬期にはヒートｙｔ２ンプの凝縮熱を蓄冷剤の顕熱と
して夜間に貯え、昼間の放熱時にはこの貯えた熱をヒー
トポンプ蒸発器の熱源として利用し、凝縮器よシ暖房用
等の熱を取り出すことによシ暖房のための蓄熱が可能と
なシ、蓄冷槽を蓄熱槽として兼用できるようにするので
ある。In order to solve the above-mentioned problems, the present invention provides a cold storage system having a cold storage tank that utilizes heat of fusion or heat of reaction.
If heat storage is required, heat output from the heat pump (condensation heat)
The present invention proposes a cold storage/thermal storage system, which is characterized in that it is stored as sensible heat of a cold storage agent in the cold storage tank, and that the stored heat is used as heat input (evaporation heat) to a heat pump during heat radiation. That is, in the present invention, in a cold storage system that performs air conditioning using heat of fusion and reaction heat in the summer, in the winter the condensed heat of the heat YT2 pump is stored as sensible heat in the cold storage agent at night, and during the daytime heat is released. By using the stored heat as a heat source for the heat pump evaporator and extracting the heat from the condenser for heating, etc., it is possible to store heat for heating, and the cold storage tank can also be used as a heat storage tank. It is.
本発明により、冷熱を必要としない冬期にも、蓄冷シス
テムを暖房システムとして利用でき、システムの年間利
用率が向上する。According to the present invention, the cold storage system can be used as a heating system even in the winter when cold energy is not required, and the annual utilization rate of the system is improved.
本発明の一実施例を第１図に示す。第１図は第４図の蓄
冷専用システムに、三方弁２３，２４，２５゜がおよび
四方弁コ、２８と、それらの弁から分岐する管路とを付
加して、ヒートポンプの凝縮器１０の冷却水が蓄冷槽内
熱交換コイル３へ、蓄冷槽内熱交換コイル３内の温水が
ヒートポンプの蒸発器７へ、また蒸発器７の熱源となる
低温熱源水圏が蒸発器７へ、それぞれ送られるようにし
たものである。An embodiment of the present invention is shown in FIG. FIG. 1 shows a heat pump condenser 10 by adding three-way valves 23, 24, 25°, a four-way valve 28, and pipes branching from these valves to the cold storage dedicated system shown in FIG. The cooling water is sent to the heat exchange coil 3 in the cold storage tank, the hot water in the heat exchange coil 3 in the cold storage tank is sent to the evaporator 7 of the heat pump, and the low-temperature heat source hydrosphere that is the heat source of the evaporator 7 is sent to the evaporator 7. This is how it was done.
蓄冷、放冷の操作は前記の蓄冷専用システム（第４図）
と同じである。Cold storage and cooling operations are performed using the cold storage dedicated system described above (Figure 4).
is the same as
蓄熱時は、低温熱源水圏をヒートポンプの蒸発器７に送
シ、ヒートポンプの凝縮器１０によ）、温熱をつくる。During heat storage, the low-temperature heat source hydrosphere is sent to the evaporator 7 of the heat pump, and the condenser 10 of the heat pump produces warm heat.
その温熱は温水１１によシ循環ポンプ１５で蓄熱槽１へ
送られる。これによシ、蓄熱槽１内の水と水和剤の混合
液は加熱され、温熱が顕熱として蓄熱される。The heat is sent to the heat storage tank 1 by the hot water 11 and the circulation pump 15. As a result, the mixture of water and hydrating agent in the heat storage tank 1 is heated, and the warm heat is stored as sensible heat.
放熱時は、蓄熱槽ｌ内で貯えられた温熱が蓄熱槽内の熱
交換コイル３で取シ出され、循環ポンプ１４によ）ヒー
トポンプの蒸発器７へ送られる。この温熱がヒートポン
プの熱源として再利用され、蓄熱槽１内の温度が高い放
熱当初はヒートポンプの昇温槽は小さく（圧縮機９の動
力は少なく）、蓄熱槽内温度の低下とともにヒートポン
プ昇温幅を大きく（圧縮機９の動力を大きく）シて、凝
縮器１０よ）一定温度の暖房用温熱が得られる。暖房用
温熱は温水１１として取シ出されて、循環ポンプ１５に
より暖房負荷１６へ送られる。During heat radiation, the warm heat stored in the heat storage tank 1 is taken out by the heat exchange coil 3 in the heat storage tank and sent to the evaporator 7 of the heat pump by the circulation pump 14. This thermal heat is reused as a heat source for the heat pump, and at the beginning of the heat dissipation when the temperature inside the heat storage tank 1 is high, the temperature rise tank of the heat pump is small (the power of the compressor 9 is small), and as the temperature inside the heat storage tank decreases, the temperature rise of the heat pump increases. By increasing the power of the compressor 9 (increasing the power of the compressor 9), heat for heating at a constant temperature can be obtained (from the condenser 10). Heat for heating is taken out as hot water 11 and sent to a heating load 16 by a circulation pump 15.
このようにして、冬期の外界温度（例えば１０’Ｃ）程
度まで蓄熱槽内温度を低下させてその顕熱を利用した蓄
熱が可能となる。In this way, the temperature inside the heat storage tank can be lowered to about the outside temperature in winter (for example, 10'C), and the sensible heat can be used to store heat.
本発明の他の実施例を第２図に示す。この実施例は、前
記の蓄冷専用システム（第４図）において、ヒートポン
プの蒸発器７および凝縮器１０を蒸発器・凝縮器兼用熱
交換器として利用できるよう、ヒートポンプを改良した
ものである。Another embodiment of the invention is shown in FIG. In this embodiment, the heat pump is improved so that the evaporator 7 and condenser 10 of the heat pump can be used as a combined evaporator/condenser heat exchanger in the above-mentioned cold storage dedicated system (FIG. 4).
蓄冷、放冷操作は前記の従来の蓄冷システム（第４図）
と同じである。Cold storage and cooling operations are performed using the conventional cold storage system described above (Figure 4).
is the same as
蓄熱時は、ヒートポンプの蒸発器７を凝縮器として、ま
た凝縮器１０を蒸発器として、それぞれ逆に利用する。During heat storage, the evaporator 7 of the heat pump is used as a condenser, and the condenser 10 is used as an evaporator, respectively.
即ちヒートポンプの媒体は、凝縮器１０で蒸発し、三方
弁部、１８を経て圧縮機９によシ圧縮され、三方弁１９
、１７を経て蒸発器７で凝縮され、さらに膨張弁戎で
減圧されて上記凝縮器１０へもどるサイクルを循環する
。蒸発器７で得られる温熱は、温水８として取り出され
、循環ポンプ１４で蓄熱槽内の熱交換コイル３へ送られ
る。これＫよ）蓄熱槽１内の混合液２は加熱され、温熱
が混合液２の顕熱として貯えられる。蒸発器１０には熱
源水１３が循環ポンプ１５によシ導かれる。That is, the medium of the heat pump is evaporated in the condenser 10, passed through the three-way valve section 18, and compressed by the compressor 9.
, 17, is condensed in the evaporator 7, is further depressurized by the expansion valve, and then returns to the condenser 10. The heat obtained by the evaporator 7 is extracted as hot water 8 and sent to the heat exchange coil 3 in the heat storage tank by the circulation pump 14. (This is K) The mixed liquid 2 in the heat storage tank 1 is heated, and the warm heat is stored as sensible heat of the mixed liquid 2. Heat source water 13 is introduced into the evaporator 10 by a circulation pump 15 .
放熱時は、ヒートポンプの蒸発器７を蒸発器として、ま
た凝縮器１０を凝縮器として、そのまま利用する。即ち
ヒートポンプの媒体は、蒸発器７で蒸発し、三方弁１７
、１８を経て圧縮機９で圧縮され、三方弁１９ 、２
０を経て凝縮器１０で凝縮、そして膨張弁１２を経て蒸
発器７へ戻る。蓄熱槽１で貯えられていた温熱は、蓄熱
槽内の熱交換コイル３で取シ出され、温水によシ循環ポ
ンプ１４で蒸発器７へ送られる。この温熱がヒートポン
プの熱源として利用され、凝縮器１０よシ温水１１とし
て取シ出されて、循環ポンプ１５によシ暖房負荷１６へ
送られる。During heat radiation, the evaporator 7 of the heat pump is used as an evaporator, and the condenser 10 is used as a condenser. That is, the heat pump medium is evaporated in the evaporator 7 and the three-way valve 17
, 18 and then compressed by the compressor 9, and the three-way valves 19, 2
0, condenses in the condenser 10, and returns to the evaporator 7 via the expansion valve 12. The heat stored in the heat storage tank 1 is taken out by a heat exchange coil 3 in the heat storage tank, and sent to the evaporator 7 by a hot water circulation pump 14. This warm heat is used as a heat source for the heat pump, taken out as hot water 11 through the condenser 10, and sent to the heating load 16 by the circulation pump 15.
このようにして前述の第１の実施例と同様に、冬期の外
界温度（例えば１０℃）程度まで蓄熱槽内温度を低下さ
せ、その顕熱を利用した蓄熱が可能となる。In this way, similarly to the first embodiment described above, the temperature inside the heat storage tank can be lowered to about the outside temperature in winter (for example, 10° C.), and the sensible heat can be used to store heat.
第３図には、本発明のさらに他の実施例を示す。FIG. 3 shows yet another embodiment of the invention.
水和剤の水和反応を利用した蓄冷槽を有する蓄冷システ
ムにおいて、水和剤がヒートポンプ用媒体としても利用
できる場合、前記第４図の蓄冷専用システムの蓄冷槽１
を蒸発器７で兼用させるシステムが構築できる。第３図
の実施例は、そのシステムにおいて、蓄冷・放冷以外に
さらに蓄熱・暖房も可能にしたシステムである。In a cold storage system having a cold storage tank that utilizes the hydration reaction of a hydrating agent, if the hydrating agent can also be used as a heat pump medium, the cold storage tank 1 of the cold storage dedicated system shown in FIG.
A system can be constructed in which the evaporator 7 is used for both purposes. The embodiment shown in FIG. 3 is a system that enables heat storage and heating in addition to cold storage and cooling.
蓄冷時には、圧縮機９、凝縮器１０、膨張弁詔、そして
蓄冷槽兼蒸発器１ａからなるヒートポンプサイクルを運
転し、蓄冷槽兼蒸発器ｌａ内をヒートポンプ媒体（水和
剤）の蒸発熱によシ冷却して、水和物を生成させる。こ
のとき冷却水Ｕは循環ポンプ１５によシ冷却塔１３へ送
る。During cold storage, a heat pump cycle consisting of a compressor 9, a condenser 10, an expansion valve, and a cold storage tank and evaporator 1a is operated, and the heat of evaporation of the heat pump medium (hydrating agent) is used to fill the inside of the cold storage tank and evaporator 1a. Cool to form a hydrate. At this time, the cooling water U is sent to the cooling tower 13 by the circulation pump 15.
放冷時については、熱交換コイル３によシ冷熱を冷水と
して取シ出し、その冷水を循環ポンプ１４で冷房負荷６
へ送る。During cooling, the heat exchange coil 3 extracts cold heat as cold water, and the cold water is sent to the cooling load 6 by the circulation pump 14.
send to
蓄熱時は、蓄冷槽兼蒸発器１ａを蓄熱槽兼凝縮器として
、凝縮器１０の方を蒸発器として利用する。During heat storage, the cold storage tank/evaporator 1a is used as a heat storage tank/condenser, and the condenser 10 is used as an evaporator.
即ち、ヒートポンプの媒体（水和剤）は蒸発器（凝縮器
）１０で蒸発、三方弁部、１８を経て圧縮機９によシ圧
縮され、三方弁１９ 、１７を紐て蓄熱槽兼凝縮器１ａ
で凝縮、さらに膨張弁丘で減圧されて蒸発器１０へ戻る
サイクルを循環する。これによシ、蓄熱槽兼凝縮器ｌａ
内の水及び水和剤からなる混合液２がヒートポンプ用媒
体の凝縮熱によシ加熱され、温熱が顕熱として蓄熱され
る。That is, the heat pump medium (hydrating agent) is evaporated in an evaporator (condenser) 10, passed through a three-way valve section 18, and compressed by a compressor 9. Three-way valves 19 and 17 are connected to form a heat storage tank and condenser. 1a
It is condensed at the evaporator 10, then depressurized at the expansion valve hill, and returned to the evaporator 10. In addition to this, the heat storage tank and condenser la
The mixed liquid 2 consisting of water and a hydrating agent is heated by the heat of condensation of the heat pump medium, and the warm heat is stored as sensible heat.
放熱時は蓄熱槽兼凝縮器１ａを蓄熱槽兼蒸発器として凝
縮器１０を凝縮器として利用する。即ちヒートポンプの
媒体は、蓄熱槽兼蒸発器１ａで水および水和剤からなる
混合液２の顕熱を熱源として蒸発し、三方弁１７ 、１
８を経て圧縮機９で圧縮され、三方弁１９ 、２０を経
て凝縮器１０で凝縮する。そしで膨張弁丘を経て蓄熱槽
兼蒸発器へ戻る。このとき凝縮器１０で暖房用の温熱が
温水１１として取シ出され、その温水１１は循環ポンプ
１５によシ暖房負荷１６へ送られる。During heat radiation, the heat storage tank/condenser 1a is used as a heat storage tank/evaporator, and the condenser 10 is used as a condenser. That is, the medium of the heat pump is evaporated in the heat storage tank and evaporator 1a using the sensible heat of the mixed liquid 2 consisting of water and a hydrating agent as a heat source, and
8, it is compressed in a compressor 9, passes through three-way valves 19 and 20, and is condensed in a condenser 10. It then returns to the heat storage tank and evaporator via the expansion valve conduit. At this time, heat for heating is extracted from the condenser 10 as hot water 11, and the hot water 11 is sent to the heating load 16 by the circulation pump 15.
この実施例の場合も、このようにして冬期の外界温度（
例えば１０℃）程度まで蓄熱槽内温度を低下させて、そ
の顕熱を利用して蓄熱が可能となる。In the case of this embodiment as well, the outside temperature in winter (
For example, by lowering the temperature inside the heat storage tank to about 10° C., it is possible to store heat by utilizing the sensible heat.
力お、第２図および第３図に示す各実施例において、三
方弁１７ 、１８ 、１９ 、２０に代えて１個の四方
切換弁を用いてもよい。Furthermore, in each of the embodiments shown in FIGS. 2 and 3, one four-way switching valve may be used in place of the three-way valves 17, 18, 19, and 20.
本発明によれば、水和剤の水和反応を利用して蓄冷を行
う蓄冷システムにおいて、冷熱を必要としない時期、例
えば冬期には、水和反応を利用せず水和反応に用いる水
或いは水および水和剤をそのまま利用して、その顕熱に
よ）低温熱を貯え、これを暖房等温熱を取シ出すための
ヒートポンプの熱源（ヒートポンプ冷媒の蒸発熱源）と
して利用するので、蓄熱槽の蓄熱容量を増加できるとと
もに、蓄冷槽と蓄熱槽との兼用を行う夏・各画用システ
ムの構築が可能となシ、システムの年間利用率を向上さ
せることができた。According to the present invention, in a cold storage system that stores cold using the hydration reaction of a hydrating agent, during periods when cold heat is not required, for example, in winter, the water used for the hydration reaction without using the hydration reaction or The water and hydrating agent are used as they are to store low-temperature heat (through its sensible heat), and this is used as a heat source for the heat pump (evaporation heat source of the heat pump refrigerant) to extract isothermal heat for heating, so the heat storage tank In addition to increasing the heat storage capacity of the system, it was also possible to construct a system for summer and other use that functions as both a cold storage tank and a heat storage tank, and the annual utilization rate of the system was improved.
第１図表いし第３図は、いずれも本発明の実施例を示す
系統図、第４図は従来のものの系統図である。
１・・・蓄冷′ＩＰ＃ｉ（蓄熱槽）；
１ａ・・・蓄冷槽兼蒸発器、（蓄熱槽兼凝縮器、蓄熱槽
兼蒸発器）；
２・・・水と水和剤からなる混合液；
３・・・熱交換コイル； ６・・・冷房負荷；７・・・
蒸発器、（凝縮器）；８・・・冷水、（温水）；９・・
・圧縮機；１０・・・凝縮器、（蒸発器）；１１・・・
冷却水、（温水）；１２・・・膨張弁；１３・・・冷却
塔、（熱源水） ； １４．１５・・・循環ポンプ；１
６・・・暖房負荷； 酋・・・低温熱源水。1 to 3 are system diagrams showing embodiments of the present invention, and FIG. 4 is a system diagram of a conventional system. 1...Cold storage 'IP#i (thermal storage tank); 1a...Cold storage tank and evaporator, (thermal storage tank and condenser, heat storage tank and evaporator); 2...Mixture consisting of water and hydrating agent Liquid; 3... Heat exchange coil; 6... Cooling load; 7...
Evaporator, (condenser); 8... Cold water, (hot water); 9...
・Compressor; 10... Condenser, (evaporator); 11...
Cooling water, (hot water); 12... Expansion valve; 13... Cooling tower, (heat source water); 14.15... Circulation pump; 1
6...Heating load; 萋...Low temperature heat source water.
Claims (1)
テムにおいて、蓄熱を必要とする場合はヒートポンプの
出熱を上記蓄冷槽で蓄冷剤の顕熱として貯え、放熱時に
は上記の貯えた熱をヒートポンプ入熱として利用するこ
とを特徴とする蓄冷・蓄熱システム。In a cold storage system that has a cold storage tank that uses heat of fusion or reaction heat, when heat storage is required, the heat output from the heat pump is stored in the cold storage tank as sensible heat of the cold storage agent, and when heat is released, the stored heat is input into the heat pump. A cold storage/thermal storage system that is characterized by its use as heat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62142143A JPS63311032A (en) | 1987-06-09 | 1987-06-09 | Cold heat accumulating and hot heat accumulation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62142143A JPS63311032A (en) | 1987-06-09 | 1987-06-09 | Cold heat accumulating and hot heat accumulation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63311032A true JPS63311032A (en) | 1988-12-19 |
Family
ID=15308365
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62142143A Pending JPS63311032A (en) | 1987-06-09 | 1987-06-09 | Cold heat accumulating and hot heat accumulation system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63311032A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11351774A (en) * | 1998-06-05 | 1999-12-24 | Matsushita Electric Ind Co Ltd | Air conditioning refrigerator |
-
1987
- 1987-06-09 JP JP62142143A patent/JPS63311032A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11351774A (en) * | 1998-06-05 | 1999-12-24 | Matsushita Electric Ind Co Ltd | Air conditioning refrigerator |
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