JPH04340035A - Cold/hot storage air conditioning system - Google Patents
Cold/hot storage air conditioning systemInfo
- Publication number
- JPH04340035A JPH04340035A JP13710891A JP13710891A JPH04340035A JP H04340035 A JPH04340035 A JP H04340035A JP 13710891 A JP13710891 A JP 13710891A JP 13710891 A JP13710891 A JP 13710891A JP H04340035 A JPH04340035 A JP H04340035A
- Authority
- JP
- Japan
- Prior art keywords
- heat
- heat exchanger
- air conditioning
- water
- compressor
- 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
- 238000004378 air conditioning Methods 0.000 title claims description 24
- 239000003507 refrigerant Substances 0.000 claims abstract description 30
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 39
- 230000000887 hydrating effect Effects 0.000 claims description 15
- 238000005338 heat storage Methods 0.000 claims description 7
- 239000000843 powder Substances 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 abstract description 17
- 239000003795 chemical substances by application Substances 0.000 abstract description 14
- 239000000498 cooling water Substances 0.000 abstract 1
- 230000036571 hydration Effects 0.000 abstract 1
- 238000006703 hydration reaction Methods 0.000 abstract 1
- 238000001816 cooling Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 6
- NMJORVOYSJLJGU-UHFFFAOYSA-N methane clathrate Chemical compound C.C.C.C.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O NMJORVOYSJLJGU-UHFFFAOYSA-N 0.000 description 4
- 230000017525 heat dissipation Effects 0.000 description 3
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- OTMSDBZUPAUEDD-UHFFFAOYSA-N Ethane Chemical compound CC OTMSDBZUPAUEDD-UHFFFAOYSA-N 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000008236 heating water Substances 0.000 description 1
- 150000004677 hydrates Chemical class 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
Landscapes
- Other Air-Conditioning Systems (AREA)
Abstract
Description
【０００１】0001
【産業上の利用分野】本発明は気体水和物を利用した蓄
冷熱空調システムに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cold storage thermal air conditioning system using gaseous hydrate.
【０００２】0002
【従来の技術】水などの原子又は分子が結合してできた
三次元構造骨組の内部に形成されている空隙内に炭化水
素（メタン、エタン、プロパン等）やガス状水和剤（Ｒ
−１１、Ｒ−１２、Ｒ−２１等のフレオンなど） を取
り込んで特定の結晶構造を構成する気体水和物は大きな
蓄冷熱容量を有するので、この気体水和物を蓄冷に利用
することが試みられている。気体水和物を利用した従来
の蓄冷熱空調システムの１ 例が図２に示されている。
図２において、１は蓄冷熱槽で、この内部には水和剤１
９及び水２０が収容され、かつ、これら水和剤１９及び
水２０の中には第１の熱交換器９と熱源側熱交換器１６
が浸漬されている。この第１の熱交換器９は圧縮機３、
四方切換弁４、室外熱交換器５、絞り８、三方弁７、第
２の熱交換器１１及びアキュームレ−タ１２と共にヒ−
トポンプを構成している。
一方、熱源側熱交換器１６は熱媒循環路２４を介して空
調ユニット２に接続され、この熱媒循環路２４には第２
の熱交換器１１、逆止弁１７、ポンプ１７、三方弁１３
、ホンプ１４及び三方弁１５が介装されている。[Prior Art] Hydrocarbons (methane, ethane, propane, etc.) and gaseous hydrating agents (R
-11, R-12, R-21, etc.) to form a specific crystal structure has a large heat capacity for cold storage, so attempts have been made to utilize this gaseous hydrate for cold storage. It is being An example of a conventional cold storage thermal air conditioning system using gaseous hydrate is shown in Figure 2. In FIG. 2, 1 is a cold storage heat tank, inside which is a hydrating agent 1.
9 and water 20 are housed, and the first heat exchanger 9 and the heat source side heat exchanger 16 are contained in these hydrating agent 19 and water 20.
is immersed. This first heat exchanger 9 includes a compressor 3,
The heater together with the four-way switching valve 4, the outdoor heat exchanger 5, the throttle 8, the three-way valve 7, the second heat exchanger 11, and the accumulator 12
It constitutes a top pump. On the other hand, the heat source side heat exchanger 16 is connected to the air conditioning unit 2 via a heat medium circulation path 24, and this heat medium circulation path 24 has a second
heat exchanger 11, check valve 17, pump 17, three-way valve 13
, a pump 14 and a three-way valve 15 are interposed.
【０００３】蓄冷運転時、圧縮機３から吐出された冷媒
ガスは四方切換弁４を通って室外熱交換器５に入り、こ
こでファン６によって送風される外気に放熱することに
よって凝縮液化する。この液冷媒は絞り８に入って絞ら
れることによって断熱膨張した後、三方弁７を経て第１
の熱交換器９中を流過する過程で管外の水和剤１９及び
水２０を冷却することによって蒸発気化する。次いで、
この冷媒ガスはアキュームレ−タ１２を経て圧縮機３に
戻る。
水和剤１９及び水２０が冷却されると、気体水和物２１
が生成され、この気体水和物２１の生成に費やされた潜
熱が冷熱として蓄冷熱槽１内に蓄えられる。During cold storage operation, the refrigerant gas discharged from the compressor 3 passes through the four-way switching valve 4 and enters the outdoor heat exchanger 5, where it is condensed and liquefied by radiating heat to the outside air blown by the fan 6. This liquid refrigerant enters the throttle 8 and expands adiabatically by being throttled, then passes through the three-way valve 7 to the first
In the process of flowing through the heat exchanger 9, the hydrating agent 19 and water 20 outside the tube are cooled and evaporated. Then,
This refrigerant gas returns to the compressor 3 via the accumulator 12. When the hydrating agent 19 and water 20 are cooled, the gaseous hydrate 21
is generated, and the latent heat spent in generating this gaseous hydrate 21 is stored in the cold heat storage tank 1 as cold heat.
【０００４】蓄冷熱槽１内に蓄えられた冷熱を取り出す
場合には放冷運転が行われる。この放冷運転時、熱媒例
えば水が熱源側熱交換器１６を流過する過程で管外の気
体水和物２１と熱交換して冷却された後、第２の熱交換
器１１、逆止弁１７、ポンプ１８を経て空調ユニット２
に送られ、ここで放冷することによって昇温する。昇温
した水は三方弁１３、ポンプ１４、三方弁１５を経て熱
源側熱交換器１６に循環する。この過程で気体水和物２
１はその潜熱を水に与えることによって徐々に水和剤１
９と水２０とに分解される。[0004] When taking out the cold heat stored in the cold storage tank 1, a cooling operation is performed. During this cooling operation, a heat medium such as water passes through the heat source side heat exchanger 16 and is cooled by exchanging heat with the gas hydrate 21 outside the tube. Air conditioning unit 2 via stop valve 17 and pump 18
The temperature is raised by cooling it here. The heated water is circulated to the heat source side heat exchanger 16 via the three-way valve 13, the pump 14, and the three-way valve 15. In this process, gaseous hydrate 2
1 gradually becomes a hydrating agent 1 by imparting its latent heat to water.
It is decomposed into 9 and 20 water.
【０００５】冷房運転時、圧縮機３から吐出された冷媒
は四方切換弁４を経て室外熱交換器５で凝縮液化し、絞
り８、三方弁７を経て第２の熱交換器１１で蒸発気化し
、四方切換弁４、アキュームレ−タ１２を経て圧縮機３
に循環する。一方、第２の熱交換器１１で冷媒と熱交換
することによって冷却された水は逆止弁１７、ポンプ１
８を経て空調ユニット２に送られ、ここで冷房すること
によって昇温した後、三方弁１３、ポンプ１４、三方弁
１５を経て再び第２の熱交換器１１に循環する。During cooling operation, the refrigerant discharged from the compressor 3 passes through the four-way switching valve 4, condenses and liquefies in the outdoor heat exchanger 5, passes through the throttle 8 and the three-way valve 7, and returns to evaporation in the second heat exchanger 11. The compressor 3 passes through the four-way switching valve 4 and the accumulator 12.
circulates. On the other hand, the water cooled by exchanging heat with the refrigerant in the second heat exchanger 11 passes through the check valve 17 and the pump 1.
The heat is sent to the air conditioning unit 2 via the air conditioner 8, where it is cooled to raise its temperature, and then circulated again to the second heat exchanger 11 via the three-way valve 13, the pump 14, and the three-way valve 15.
【０００６】蓄熱運転時、圧縮機３から吐出された冷媒
は四方切換弁４を経て第２の熱交換器１１で凝縮液化し
、三方弁７、絞り８を経て室外熱交換器５で蒸発気化し
、四方切換弁４、アキュームレ−タ１２を経て圧縮機３
に循環する。一方、第２の熱交換器１１で冷媒と熱交換
することによって加熱された水は三方弁１３、ポンプ１
４、三方弁１５をこの順に経て熱源側熱交換器１６に入
り、ここで管外の水を加熱することにより降温した後、
再び第２の熱交換器１１に循環する。かくして、蓄冷熱
槽１内の水が昇温し、これに要した顕熱が蓄冷熱槽１内
に蓄熱される。During heat storage operation, the refrigerant discharged from the compressor 3 passes through the four-way switching valve 4, is condensed and liquefied in the second heat exchanger 11, passes through the three-way valve 7 and the throttle 8, and is turned into evaporated vapor in the outdoor heat exchanger 5. The compressor 3 passes through the four-way switching valve 4 and the accumulator 12.
circulates. On the other hand, the water heated by exchanging heat with the refrigerant in the second heat exchanger 11 is transferred to the three-way valve 13 and the pump 1.
4. Pass through the three-way valve 15 in this order and enter the heat source side heat exchanger 16, where the water outside the tube is heated and the temperature is lowered.
It is circulated again to the second heat exchanger 11. In this way, the temperature of the water in the cold storage heat tank 1 rises, and the sensible heat required for this rise is stored in the cold storage heat tank 1.
【０００７】蓄冷熱槽１内に蓄熱された熱を取り出す場
合には放熱運転が行われる。この放熱運転時、水が熱源
側熱交換器１６、第２の熱交換器１１、逆止弁１７、ポ
ンプ１８、空調ユニット２、三方弁１３、ポンプ１４、
三方弁１５をこの順に経て熱源側熱交換器１６に循環し
、熱源側熱交換器１６内を流過する過程で管外の水から
吸熱することによって昇温し、空調ユニット２で放熱す
ることによって降温する。[0007] When the heat stored in the cold storage tank 1 is taken out, a heat radiation operation is performed. During this heat dissipation operation, water flows through the heat source side heat exchanger 16, second heat exchanger 11, check valve 17, pump 18, air conditioning unit 2, three-way valve 13, pump 14,
The water circulates through the three-way valve 15 in this order to the heat source side heat exchanger 16, and in the process of flowing through the heat source side heat exchanger 16, it absorbs heat from the water outside the pipe, raising the temperature, and radiates the heat in the air conditioning unit 2. The temperature decreases due to
【０００８】暖房運転時、冷媒が圧縮機３、四方切換弁
４を経て第２の熱交換器１１で凝縮液化し、三方弁７、
絞り８を経て室外熱交換器５で蒸発気化して四方切換弁
４、アキュームレ−タ１２を経て圧縮機３に循環する。
第２の熱交換器１１で冷媒と熱交換することによって加
熱された水は逆止弁１７、ポンプ１８を経て空調ユニッ
ト２に入りここで暖房することによって降温した後、三
方弁１３、ポンプ１４、三方弁１５を経て第２の熱交換
器１１に循環する。During heating operation, the refrigerant passes through the compressor 3 and the four-way switching valve 4 and is condensed and liquefied in the second heat exchanger 11.
It passes through a throttle 8, is evaporated in an outdoor heat exchanger 5, and is circulated to a compressor 3 via a four-way switching valve 4 and an accumulator 12. The water heated by exchanging heat with the refrigerant in the second heat exchanger 11 passes through the check valve 17 and the pump 18 and enters the air conditioning unit 2 where it is heated and cooled down. , and is circulated to the second heat exchanger 11 via the three-way valve 15.
【０００９】[0009]
【発明が解決しようとする課題】上記従来のシステムに
おいては、その蓄熱運転時、蓄冷熱槽１内に貯溜された
水の温度上昇による顕熱分しか蓄冷熱槽１内に蓄熱でき
ず、従って、放熱運転時においてもこの顕熱分しか放熱
できないという問題があった。[Problems to be Solved by the Invention] In the conventional system described above, during the heat storage operation, only the sensible heat due to the temperature rise of the water stored in the cold storage tank 1 can be stored in the cold storage tank 1. There was a problem in that even during heat dissipation operation, only this sensible heat could be dissipated.
【００１０】0010
【課題を解決するための手段】本発明は上記に鑑み、暖
房運転時に気体水和物を生成させ、生成時の潜熱を熱源
として熱媒を加熱しようとするものであって、その要旨
とするところは、水和剤と水とが収容された蓄冷熱槽と
、圧縮機、四方切換弁、室外熱交換器、絞り、第１の熱
交換器及び第２の熱交換器からなるヒ−トポンプと、空
調ユニットとを具備し、上記蓄冷熱槽内に上記空調ユニ
ットに熱媒循環路を介して接続された熱源側熱交換器と
上記ヒートポンプの第１の熱交換器をそれぞれ配設し、
かつ、上記熱媒循環路中に上記ヒ−トポンプの第２の熱
交換器を介装してなる蓄冷熱空調システムにおいて、上
記ヒ−トポンプの第１の熱交換器と第２の熱交換器との
間に第２の絞りを設け、上記第１の熱交換器を蒸発器、
第２の熱交換器を凝縮器とし上記圧縮機及び上記第２の
絞りと協働してヒ−トポンプサイクルを形成する冷媒回
路を構成したことを特徴とする蓄冷熱空調システムにあ
る。[Means for Solving the Problems] In view of the above, the present invention aims to generate gaseous hydrates during heating operation and heat a heat medium using the latent heat generated during the generation as a heat source. However, a heat pump consists of a cold storage heat tank containing a hydrating powder and water, a compressor, a four-way switching valve, an outdoor heat exchanger, a throttle, a first heat exchanger, and a second heat exchanger. and an air conditioning unit, a heat source side heat exchanger connected to the air conditioning unit via a heat medium circulation path and a first heat exchanger of the heat pump are respectively arranged in the cold storage heat tank,
and a cold storage thermal air conditioning system comprising a second heat exchanger of the heat pump interposed in the heat medium circulation path, the first heat exchanger and the second heat exchanger of the heat pump; a second throttle is provided between the first heat exchanger and the evaporator;
A refrigerant circuit comprising a second heat exchanger as a condenser and a refrigerant circuit that cooperates with the compressor and the second throttle to form a heat pump cycle.
【００１１】[0011]
【作用】本発明においては、上記構成を具えているため
、暖房運転時、冷媒は圧縮機から四方切換弁を経て第２
の熱交換器で冷媒を加熱することにより凝縮液化し、第
２の絞りで断熱膨張し、第１の熱交換器で管外の水和剤
及び水を冷却して気体水和物を生成することにより自身
は蒸発気化して圧縮機に戻る。一方、第２の熱交換器で
冷媒により加熱された熱媒は空調ユニットに入り、ここ
で暖房することによって降温した後再び第２の熱交換器
に循環する。[Operation] Since the present invention has the above-mentioned configuration, during heating operation, the refrigerant is passed from the compressor through the four-way switching valve to the second
By heating the refrigerant in the heat exchanger, it condenses and liquefies, expands adiabatically in the second throttle, and cools the hydrating agent and water outside the tube in the first heat exchanger to generate a gaseous hydrate. As a result, it evaporates and returns to the compressor. On the other hand, the heat medium heated by the refrigerant in the second heat exchanger enters the air conditioning unit, cools down by heating there, and then circulates to the second heat exchanger again.
【００１２】0012
【実施例】本発明の１実施例が図１に示されている。第
１の熱交換器９と第２の熱交換器１１との間に膨張弁等
の第２の絞り１０が介装され、この第２の絞り１０と並
列に第２の熱交換器１１への冷媒の流れを許容するが、
これと逆方向への冷媒の流れを阻止する逆止弁２３が配
列されている。また、絞り８と並列に室外熱交換器５へ
の冷媒の流れを許容するが、これと逆方向への冷媒の流
れを阻止する逆止弁２２が配設されている。他の構成は
第２図に示す従来のものと同様であり、対応する部材に
は同じ符号が付されている。DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the invention is shown in FIG. A second restrictor 10 such as an expansion valve is interposed between the first heat exchanger 9 and the second heat exchanger 11, and the second restrictor 10 is connected to the second heat exchanger 11 in parallel with the second restrictor 10. Although it allows a flow of refrigerant of
Check valves 23 are arranged to prevent the flow of refrigerant in the opposite direction. Further, a check valve 22 is arranged in parallel with the throttle 8 to allow the flow of refrigerant to the outdoor heat exchanger 5, but to prevent the refrigerant from flowing in the opposite direction. The rest of the structure is the same as the conventional one shown in FIG. 2, and corresponding members are given the same reference numerals.
【００１３】蓄冷運転時、圧縮機３から吐出された冷媒
ガスは四方切換弁４を通って室外熱交換器５に入り、こ
こでファン６によって送風される外気に放熱することに
よって凝縮液化する。この液冷媒は絞り８に入って断熱
膨張した後、三方弁７を経て第１の熱交換器９で管外の
水和剤１９及び水２０を冷却することによって蒸発気化
する。次いで、この冷媒ガスはアキュームレ−タ１２を
経て圧縮機３に戻る。水和剤１９及び水２０は冷却され
ることにより気体水和物２１を生成し、この生成に費や
された潜熱が冷熱として蓄冷熱槽１内に蓄えられる。During cold storage operation, the refrigerant gas discharged from the compressor 3 passes through the four-way switching valve 4 and enters the outdoor heat exchanger 5, where it is condensed and liquefied by radiating heat to the outside air blown by the fan 6. After this liquid refrigerant enters the throttle 8 and expands adiabatically, it passes through the three-way valve 7 and is evaporated by cooling the hydrating agent 19 and water 20 outside the tube in the first heat exchanger 9. This refrigerant gas then returns to the compressor 3 via the accumulator 12. The hydrating agent 19 and the water 20 are cooled to generate a gaseous hydrate 21, and the latent heat spent on this generation is stored in the cold heat storage tank 1 as cold heat.
【００１４】放冷運転時、水が熱源側熱交換器１６で冷
却された後、第２の熱交換器１１、逆止弁１７、ポンプ
１８を経て空調ユニット２に送られ、ここで放冷するこ
とによって昇温し、三方弁１３、ポンプ１４、三方弁１
５を経て熱源側熱交換器１６に循環する。この過程で気
体水和物２１はその潜熱を水に与えることによって徐々
に水和剤１９と水２０とに分解される。During the cooling operation, after the water is cooled by the heat source side heat exchanger 16, it is sent to the air conditioning unit 2 via the second heat exchanger 11, the check valve 17, and the pump 18, where it is cooled by the heat source side heat exchanger 16. The temperature is raised by
5 and circulates to the heat source side heat exchanger 16. In this process, the gaseous hydrate 21 is gradually decomposed into the hydrating agent 19 and water 20 by imparting its latent heat to the water.
【００１５】冷房運転時、圧縮機３から吐出された冷媒
は四方切換弁４を経て室外熱交換器５で凝縮液化し、絞
り８、三方弁７、逆止弁２３を経て第２の熱交換器１１
で蒸発気化した後、四方切換弁４、アキュームレ−タ１
２を経て圧縮機３に循環する。一方、第２の熱交換器１
１で冷媒と熱交換することによって冷却された水は逆止
弁１７、ポンプ１８を経て空調ユニット２に入りここで
冷房することによって昇温した後、三方弁１３、ポンプ
１４、三方弁１５を経て再び第２の熱交換器１１に循環
する。During cooling operation, the refrigerant discharged from the compressor 3 passes through the four-way switching valve 4, condenses and liquefies in the outdoor heat exchanger 5, passes through the throttle 8, the three-way valve 7, and the check valve 23, and then enters the second heat exchanger. Vessel 11
After evaporation, four-way switching valve 4, accumulator 1
2 and circulates to the compressor 3. On the other hand, the second heat exchanger 1
The water cooled by heat exchange with the refrigerant in step 1 passes through the check valve 17 and the pump 18 and enters the air conditioning unit 2 where it is cooled to raise its temperature. After that, it is circulated again to the second heat exchanger 11.
【００１６】蓄熱運転時、圧縮機３から吐出された冷媒
は四方切換弁４を経て第２の熱交換器１１で凝縮液化し
、絞り１０で断熱膨張し、三方弁７、逆止弁２２を経て
室外熱交換器５で蒸発気化し、四方切換弁４、アキュー
ムレ−タ１２を経て圧縮機３に循環する。一方、第２の
熱交換器１１で冷媒と熱交換することによって加熱され
た水は三方弁１３、ポンプ１４、三方弁１５を経て熱源
側熱交換器１６入りここで管外の水を加熱することによ
り降温した後、再び第２の熱交換器１１に循環する。During heat storage operation, the refrigerant discharged from the compressor 3 passes through the four-way switching valve 4, condenses and liquefies in the second heat exchanger 11, expands adiabatically at the throttle 10, and closes the three-way valve 7 and check valve 22. After that, it is evaporated in an outdoor heat exchanger 5, and is circulated to a compressor 3 via a four-way switching valve 4 and an accumulator 12. On the other hand, the water heated by exchanging heat with the refrigerant in the second heat exchanger 11 passes through the three-way valve 13, pump 14, and three-way valve 15, and enters the heat source side heat exchanger 16, where it heats the water outside the pipe. After the temperature is lowered by this, it is circulated to the second heat exchanger 11 again.
【００１７】放熱運転時、水は熱源側熱交換器１６、第
２の熱交換器１１、逆止弁１７、ポンプ１８、空調ユニ
ット２、三方弁１３、ポンプ１４、三方弁１５をこの順
に経て熱源側熱交換器１６に循環し、熱源側熱交換器１
６内を流過する過程で管外の水から吸熱することによっ
て昇温し、空調ユニット２で放熱することによって降温
する。空気を熱源として暖房運転する場合には、冷媒は
圧縮機３、四方切換弁４、第２の熱交換器１１、第２の
絞り１０、三方弁７、逆止弁２２、室外熱交換器５、四
方切換弁４、アキュームレ−タ１２をこの順に経て圧縮
機３に循環し、水は第２の熱交換器１１、逆止弁１７、
ポンプ１８、空調ユニット２、三方弁１３、ポンプ１４
、三方弁１５を経て第２の熱交換器１１に循環する。か
くして、水は第２の熱交換器１１で冷媒と熱交換するこ
とにより昇温し、空調ユニット２で暖房することによっ
て降温する。During heat dissipation operation, water passes through the heat source side heat exchanger 16, second heat exchanger 11, check valve 17, pump 18, air conditioning unit 2, three-way valve 13, pump 14, and three-way valve 15 in this order. It circulates to the heat source side heat exchanger 16, and the heat source side heat exchanger 1
In the process of flowing through the tube, the temperature rises by absorbing heat from the water outside the tube, and the temperature decreases by dissipating heat in the air conditioning unit 2. In heating operation using air as a heat source, the refrigerant is compressor 3, four-way switching valve 4, second heat exchanger 11, second throttle 10, three-way valve 7, check valve 22, outdoor heat exchanger 5 , the four-way switching valve 4, and the accumulator 12 in this order, the water is circulated to the compressor 3, and the water is passed through the second heat exchanger 11, the check valve 17,
Pump 18, air conditioning unit 2, three-way valve 13, pump 14
, and is circulated to the second heat exchanger 11 via the three-way valve 15. Thus, the temperature of the water is increased by exchanging heat with the refrigerant in the second heat exchanger 11, and the temperature of the water is decreased by being heated by the air conditioning unit 2.
【００１８】気体水和物の潜熱を熱源として暖房運転す
る場合には、圧縮機３から吐出された冷媒は四方切換弁
４を経て第２の熱交換器１１で水を加熱することによっ
て凝縮液化し、第２の絞り１０で断熱膨張し、三方弁７
を経て第１の熱交換器９で凝縮液化した後アキュームレ
−タ１２を経て圧縮機３に循環し、第１の熱交換器９を
流過する過程で管外の水和剤１９及び水２０を冷却する
ことによって気体水和物２１を生成させる。一方、第２
の熱交換器１１で加熱された水は逆止弁１７、ポンプ１
８を経て空調ユニット２内に送られ、ここで暖房するこ
とによって降温した後三方弁１３、ポンプ１４、三方弁
１５を経て再び第２の熱交換器１１内に循環する。この
暖房運転時、ヒ−トポンプサイクルは蓄冷熱槽１内の水
２０の顕熱又は気体水和物２１を生成する際の潜熱を熱
源として運転されるので、その暖房能力及び成績係数は
空気を熱源として運転する場合に比し大巾に向上する。
なお、昼間にこの暖房運転によって生成した気体水和物
２１を利用し夜間に蓄熱運転を行うこともできる。In heating operation using the latent heat of the gas hydrate as a heat source, the refrigerant discharged from the compressor 3 passes through the four-way switching valve 4 and is condensed and liquefied by heating water in the second heat exchanger 11. The second throttle 10 expands adiabatically, and the three-way valve 7
After being condensed and liquefied in the first heat exchanger 9, it is circulated to the compressor 3 via the accumulator 12, and in the process of flowing through the first heat exchanger 9, the hydrating agent 19 and water 20 outside the pipe are removed. A gaseous hydrate 21 is generated by cooling. On the other hand, the second
The water heated by the heat exchanger 11 is passed through the check valve 17 and the pump 1.
The heat is sent to the air conditioning unit 2 via the air conditioner 8, where it is cooled by heating, and then circulated again into the second heat exchanger 11 via the three-way valve 13, the pump 14, and the three-way valve 15. During this heating operation, the heat pump cycle is operated using the sensible heat of the water 20 in the cold storage tank 1 or the latent heat when generating the gas hydrate 21 as a heat source, so its heating capacity and coefficient of performance are This is a huge improvement compared to when operating as a heat source. Note that it is also possible to perform heat storage operation at night by using the gas hydrate 21 generated by this heating operation during the day.
【００１９】[0019]
【発明の効果】本発明においては、ヒ−トポンプの第１
熱交換器と第２熱交換器との間に第２の絞りを設け、暖
房運転時、第１熱交換器を蒸発器、第２の熱交換器を凝
縮器として圧縮機及び第２の絞りと協働してヒ−トポン
プサイクルを形成するため、蓄冷熱槽内の水又は水和剤
を冷却して気体水和物を生成させ、その際の潜熱を利用
して暖房できるので、暖房能力及び成績係数を大巾に向
上できる。Effects of the Invention In the present invention, the first
A second throttle is provided between the heat exchanger and the second heat exchanger, and during heating operation, the first heat exchanger is used as an evaporator and the second heat exchanger is used as a condenser. In order to form a heat pump cycle in cooperation with the cold storage tank, the water or hydrating agent in the cold storage tank is cooled to generate gaseous hydrate, and the latent heat at that time can be used for heating, increasing the heating capacity. and the coefficient of performance can be greatly improved.
【図１】本発明の１実施例を示す系統図である。FIG. 1 is a system diagram showing one embodiment of the present invention.
【図２】従来のシステムの１例を示す系統図である。FIG. 2 is a system diagram showing an example of a conventional system.
１ 蓄冷熱槽 １９ 水和剤 ２０ 水 ２１ 気体水和物 ３ 圧縮機 ４ 四方切換弁 ５ 室外熱交換器 ８ 絞り ９ 第１の熱交換器 １１ 第２の熱交換器 ２ 空調ユニット １６ 熱源側熱交換器 ２４ 熱媒循環路 １０ 第２の絞り 1 Cold storage heat tank 19 Hydrating agent 20 Water 21 Gaseous hydrate 3 Compressor 4 Four-way switching valve 5 Outdoor heat exchanger 8 Aperture 9 First heat exchanger 11 Second heat exchanger 2 Air conditioning unit 16 Heat source side heat exchanger 24 Heat medium circulation path 10 Second aperture
Claims (1)
、圧縮機、四方切換弁、室外熱交換器、絞り、第１の熱
交換器及び第２の熱交換器からなるヒ−トポンプと、空
調ユニットとを具備し、上記蓄冷熱槽内に上記空調ユニ
ットに熱媒循環路を介して接続された熱源側熱交換器と
上記ヒートポンプの第１の熱交換器をそれぞれ配設し、
かつ、上記熱媒循環路中に上記ヒ−トポンプの第２の熱
交換器を介装してなる蓄冷熱空調システムにおいて、上
記ヒ−トポンプの第１の熱交換器と第２の熱交換器との
間に第２の絞りを設け、上記第１の熱交換器を蒸発器、
第２の熱交換器を凝縮器とし上記圧縮機及び上記第２の
絞りと協働してヒ−トポンプサイクルを形成する冷媒回
路を構成したことを特徴とする蓄冷熱空調システム。Claim 1: A heat storage system comprising a cold storage heat tank containing a hydrating powder and water, a compressor, a four-way switching valve, an outdoor heat exchanger, a throttle, a first heat exchanger, and a second heat exchanger. - a heat source side heat exchanger connected to the air conditioning unit via a heat medium circulation path and a first heat exchanger of the heat pump are respectively disposed in the cold storage heat tank; death,
and a cold storage thermal air conditioning system comprising a second heat exchanger of the heat pump interposed in the heat medium circulation path, the first heat exchanger and the second heat exchanger of the heat pump; a second throttle is provided between the first heat exchanger and the evaporator;
A cold storage thermal air conditioning system comprising a refrigerant circuit in which a second heat exchanger is used as a condenser and cooperates with the compressor and the second throttle to form a heat pump cycle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3137108A JP2989316B2 (en) | 1991-05-14 | 1991-05-14 | Cold storage air conditioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3137108A JP2989316B2 (en) | 1991-05-14 | 1991-05-14 | Cold storage air conditioning system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04340035A true JPH04340035A (en) | 1992-11-26 |
| JP2989316B2 JP2989316B2 (en) | 1999-12-13 |
Family
ID=15191035
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3137108A Expired - Fee Related JP2989316B2 (en) | 1991-05-14 | 1991-05-14 | Cold storage air conditioning system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2989316B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8181469B2 (en) | 2002-02-19 | 2012-05-22 | Mitsui Zosen Plant Engineering Inc. | Refrigerating method and refrigerating system utilizing gas hydrate |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4867851B2 (en) * | 2007-01-30 | 2012-02-01 | Ｊｆｅエンジニアリング株式会社 | Refrigerator and operation method thereof, air conditioning equipment and operation method thereof |
-
1991
- 1991-05-14 JP JP3137108A patent/JP2989316B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8181469B2 (en) | 2002-02-19 | 2012-05-22 | Mitsui Zosen Plant Engineering Inc. | Refrigerating method and refrigerating system utilizing gas hydrate |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2989316B2 (en) | 1999-12-13 |
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|---|---|---|---|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 19990907 |
|
| LAPS | Cancellation because of no payment of annual fees |