JPH0626672A - Ice making device - Google Patents
Ice making deviceInfo
- Publication number
- JPH0626672A JPH0626672A JP18340392A JP18340392A JPH0626672A JP H0626672 A JPH0626672 A JP H0626672A JP 18340392 A JP18340392 A JP 18340392A JP 18340392 A JP18340392 A JP 18340392A JP H0626672 A JPH0626672 A JP H0626672A
- Authority
- JP
- Japan
- Prior art keywords
- ice
- storage material
- cold storage
- heat
- storage tank
- 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
- Other Air-Conditioning Systems (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、空気調和装置等に使用
される製氷装置に係り、とくに蓄氷槽容積に対するＩＰ
Ｆ向上および蓄熱利用時の蓄熱回収効率の向上対策に関
する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ice making device used in an air conditioner or the like, and particularly to an IP for an ice storage tank volume.
It relates to measures for improving F and improving the efficiency of heat storage recovery when using heat storage.
【０００２】[0002]
【従来の技術】この種の製氷装置は、特開平４−３８６
７号公報に開示されているように、蓄氷槽（２１）と過
冷却生成冷却器である水熱交換器と過冷却解消部とを循
環路により順次接続して水または水溶液である蓄冷材の
循環可能な閉回路に形成され、水熱交換器で蓄冷材を過
冷却し、蓄冷材の過冷却状態を循環路内の過冷却解消部
で解消してスラリー状の氷化物を生成し、スラリー状の
氷化物が混在する蓄冷材を蓄氷槽まで流通して蓄氷槽に
貯溜している。2. Description of the Related Art This type of ice making device is disclosed in Japanese Patent Laid-Open No. 4-386.
As disclosed in Japanese Patent Publication No. 7, a cold storage material that is water or an aqueous solution by sequentially connecting an ice storage tank (21), a water heat exchanger that is a subcooling generation cooler, and a subcooling elimination unit by a circulation path. Is formed in a closed circuit that can be circulated, supercools the regenerator material with a water heat exchanger, and eliminates the supercooled state of the regenerator material with the supercooling elimination part in the circulation path to produce a slurry-like ice product, A cold storage material mixed with a slurry of iced substances is distributed to the ice storage tank and stored in the ice storage tank.
【０００３】また、循環路は蓄氷槽への流入口が蓄冷材
中に開口して蓄冷材中に氷化物が混在する蓄冷材を流入
させており、蓄氷槽の上部空間より蓄冷材を流下する場
合に比べて上部空間を小さくすることができ、小容量の
蓄氷槽でも大きなＩＰＦ（製氷時の蓄冷材の全体積に対
する氷体積の割合）が得られるようにしている。Further, the circulation path has an inlet port to the ice storage tank which opens into the cold storage material to allow the cold storage material in which the iced substance is mixed into the cold storage material to flow in, and the cold storage material is discharged from the upper space of the ice storage tank. The upper space can be made smaller than in the case of flowing down, and a large IPF (ratio of ice volume to the total volume of the cold storage material during ice making) can be obtained even in a small capacity ice storage tank.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、上記製
氷装置では、流入口が蓄氷槽の蓄冷材中に開口している
ために、何等の措置も講じないと流入口が氷化物で詰ま
るおそれがある。つまり、氷化物が液中に蓄積層を形成
するＩＰＦが大きい場合に流入口は氷化物で詰まり易い
が、ＩＰＦが小さい場合であっても、スラリー状の氷化
物が液状の蓄冷材中を浮遊して流入口に侵入しやすいた
めに、詰まり易い。However, in the above-mentioned ice making device, since the inlet is opened in the cold storage material of the ice storage tank, the inlet may be clogged with iced substances if no measures are taken. is there. In other words, when the iced substance has a large IPF that forms an accumulation layer in the liquid, the inlet is easily clogged with the iced substance, but even when the IPF is small, the slurry iced substance floats in the liquid regenerator material. Then, since it easily enters the inflow port, it is easily clogged.
【０００５】本発明は、かかる点に鑑みてなされたもの
であって、蓄氷槽内の蓄冷材中に開口する流入管の目詰
まりを防止することを目的としている。The present invention has been made in view of the above points, and an object thereof is to prevent clogging of an inflow pipe that opens into a cold storage material in an ice storage tank.
【０００６】[0006]
【課題を解決するための手段】上記目的を達成するため
に、請求項１に係る発明が講じた手段は、蓄冷材（Ｗ）
中に開口し、液状の蓄冷材（Ｗ）の貯溜空間を形成する
噴流を生起する流入管を設けるものである。[Means for Solving the Problems] In order to achieve the above object, the means of the invention according to claim 1 is a regenerator material (W).
An inflow pipe, which is opened inside and produces a jet flow that forms a storage space for the liquid cold storage material (W), is provided.
【０００７】具体的には、請求項１に係る発明が講じた
手段は、図１に示すように、スラリー状に氷化された蓄
冷材（Ｗ）を貯溜するための蓄氷槽（２１）と、蓄冷材
（Ｗ）を過冷却するための冷却手段（２５）とが蓄冷材
（Ｗ）の循環可能に接続されて製氷回路（Ｙ）が構成さ
れ、過冷却された蓄冷材（Ｗ）の過冷却状態を解消して
生成した氷化物を上記蓄氷槽（２１）に貯溜する製氷装
置を前提としている。Specifically, the means taken by the invention according to claim 1 is, as shown in FIG. 1, an ice storage tank (21) for storing a cold storage material (W) iced in a slurry form. And a cooling means (25) for supercooling the regenerator material (W) are connected so that the regenerator material (W) can circulate, thereby forming an ice making circuit (Y), and the supercooled regenerator material (W). It is premised on an ice-making device that stores the iced product generated by eliminating the supercooled state of (1) in the ice storage tank (21).
【０００８】そして、図６に示すように、上記蓄氷槽
（２１）には、上記製氷回路（Ｙ）から蓄冷材（Ｗ）が
流入する流入口（８５）が形成されると共に、上記製氷
回路（Ｙ）に蓄冷材（Ｗ）を流出させる流出口（８７）
が形成された構成としている。As shown in FIG. 6, the ice storage tank (21) is provided with an inlet (85) into which the cold storage material (W) flows from the ice making circuit (Y) and the ice making is performed. Outlet (87) for letting the cold storage material (W) flow out to the circuit (Y)
Is formed.
【０００９】上記蓄氷槽（２１）内には、上記流入口
（８５）に接続されて蓄冷材（Ｗ）中に開口し、液状の
蓄冷材（Ｗ）の貯溜空間（Ｓ）を形成する噴流を生起す
る流入管（９１）が設けられた構成としている。In the ice storage tank (21), connected to the inflow port (85) and opened in the cold storage material (W), a storage space (S) of the liquid cold storage material (W) is formed. An inflow pipe (91) for generating a jet flow is provided.
【００１０】また、請求項２に係る発明が講じた手段
は、蓄熱と蓄熱回収とを行う熱交換部を設け、製氷回路
を蓄氷槽の蓄熱を利用して蓄熱回収を行うようにしたも
のである。Further, the means taken by the invention according to claim 2 is one in which a heat exchange section for storing heat and collecting heat is provided, and the ice making circuit carries out heat storage recovery by utilizing the heat storage of the ice storage tank. Is.
【００１１】具体的には、請求項２に係る発明が講じた
手段は、図１に示すように、請求項１に係る発明の冷却
手段（２５）に代え、熱交換部（８１）が設けられた構
成としている。Specifically, the means taken by the invention according to claim 2 is, as shown in FIG. 1, replaced with the cooling means (25) according to the invention according to claim 1, and a heat exchange part (81) is provided. It has a specific configuration.
【００１２】さらに、上記熱交換部（８１）は、冷凍回
路に接続され、蓄熱運転時に冷媒との熱交換により蓄冷
材（Ｗ）を過冷却する蒸発器と、蓄熱冷房運転時に冷媒
との熱交換により蓄冷材（Ｗ）の冷熱を回収する凝縮器
とに切換可能に構成されている。Further, the heat exchange section (81) is connected to the refrigerating circuit and heats the evaporator for supercooling the cold storage material (W) by exchanging heat with the refrigerant during the heat storage operation and the heat for the refrigerant during the heat storage cooling operation. It can be switched to a condenser that recovers the cold heat of the cold storage material (W) by replacement.
【００１３】また、請求項３に係る発明が講じた手段
は、図７に示すように、請求項１または２記載の製氷装
置において、流入管（９１）は、開口部（９３）が蓄冷
材（Ｗ）の噴流速度を増加する絞り部（９７）に構成さ
れている。Further, the means taken by the invention according to claim 3 is, as shown in FIG. 7, in the ice making apparatus according to claim 1 or 2, the inlet pipe (91) has an opening (93) with a regenerator material. It is configured in the throttle portion (97) for increasing the jet velocity of (W).
【００１４】[0014]
【作用】上記の構成により、請求項１に係る発明では、
冷却手段（２５）で過冷却された蓄冷材（Ｗ）が、過冷
却状態を解消されて氷化し、氷化物が混在する蓄冷材
（Ｗ）が流入管（９１）より蓄氷槽（２１）に流入し、
蓄氷槽（２１）内に氷化物が貯溜される。With the above construction, in the invention according to claim 1,
The cold storage material (W) supercooled by the cooling means (25) is freed from the supercooled state and becomes iced, and the cold storage material (W) containing a mixture of iced substances is fed from the inflow pipe (91) to the ice storage tank (21). Flowing into
Glitter is stored in the ice storage tank (21).
【００１５】流入管（９１）は、液状の蓄冷材（Ｗ）の
貯溜空間（液空間）（Ｓ）を形成する噴流を生起するの
で、噴流の流入流域に氷化物が存在していても噴流によ
って流入流域外に押し退けられ、流入管（９１）内に氷
化物が侵入して詰まることがない。Since the inflow pipe (91) produces a jet flow forming a storage space (liquid space) (S) of the liquid cold storage material (W), the jet flow will occur even if iced substances are present in the inflow region of the jet flow. It is pushed out of the inflow basin by this, and the iced matter does not enter the inflow pipe (91) to be clogged.
【００１６】また、請求項２に係る発明では、熱交換部
（８１）は冷媒との熱交換により、蓄熱だけでなく蓄熱
回収も行う。したがって、蓄熱運転時には流入管（９
１）より氷化物が混在する蓄冷材（Ｗ）が流入する一
方、蓄熱冷房運転時には熱交換部（８１）で冷媒との熱
交換により蓄熱回収されて温度上昇した蓄冷材（Ｗ）が
蓄氷槽（２１）に流入する。According to the second aspect of the present invention, the heat exchange section (81) exchanges heat with the refrigerant so that not only the heat is stored but also the heat is recovered. Therefore, the inlet pipe (9
1) the cold storage material (W) mixed with the iced substance flows in, while during the thermal storage cooling operation, the cold storage material (W) whose temperature has risen due to heat storage and recovery by heat exchange with the refrigerant in the heat exchange section (81) It flows into the tank (21).
【００１７】したがって、蓄熱運転時には流入管（９
１）の詰まりが防止される。一方、蓄熱冷房運転時にお
いては、流入管（９１）からの噴流が氷化物を流入流域
外に移動させて液空間（Ｓ）を形成するので、ＩＰＦが
大きい運転開始時においても蓄冷材の流入が確保され
る。また、温かい噴流が液中の氷化物の蓄積層に噴き付
けるので、噴流の勢いによって氷化物の融解が促進され
て効率のよい蓄熱回収が行われる。Therefore, during the heat storage operation, the inflow pipe (9
The clogging of 1) is prevented. On the other hand, during the heat storage cooling operation, the jet flow from the inflow pipe (91) moves the iced substance to the outside of the inflow flow region to form the liquid space (S), so that the inflow of the cold storage material even at the start of the operation with a large IPF. Is secured. Further, since the warm jet stream is sprayed onto the accumulation layer of the iced substance in the liquid, the momentum of the jet stream promotes the melting of the iced substance and the efficient heat storage recovery is performed.
【００１８】また、請求項３に係る発明では、流入管
（９１）は絞り部（９７）に形成されて、開口部（９
３）が蓄冷材（Ｗ）の噴流速度を増加するので、液空間
（Ｓ）がより確実に形成される。Further, in the invention according to claim 3, the inflow pipe (91) is formed in the throttle portion (97), and the opening portion (9) is formed.
Since 3) increases the jet velocity of the cold storage material (W), the liquid space (S) is formed more reliably.
【００１９】[0019]
【発明の効果】以上のように、請求項１に係る発明によ
れば、流入管（９１）が液空間（Ｓ）を形成する噴流を
生起するので、流入管（９１）の詰まりを防止すること
ができ、蓄冷材（Ｗ）中に流入管（９１）が開口してい
ても常に蓄氷槽（２１）への氷化物の流入を確保するこ
とができる。したがって、所定容積の貯溜容量に対して
上部空間をできるだけ小さくして蓄氷槽（２１）を小容
量化する場合にも流入管（９１）の詰まりによるＩＰＦ
の低下を防止することができる。As described above, according to the first aspect of the invention, the inflow pipe (91) causes the jet flow forming the liquid space (S), so that the inflow pipe (91) is prevented from being clogged. Therefore, even if the inflow pipe (91) is opened in the cold storage material (W), it is possible to always ensure the inflow of the iced product into the ice storage tank (21). Therefore, even when the upper space is made as small as possible with respect to the storage capacity of a predetermined volume to reduce the capacity of the ice storage tank (21), the IPF due to the clogging of the inflow pipe (91).
Can be prevented.
【００２０】また、請求項２に係る発明によれば、熱交
換部（８１）により製氷回路が蓄熱回収可能な場合にお
いても、流入管（９１）からの噴流が氷化物を流入流域
外に移動させると共に氷化物を融解しながら液空間
（Ｓ）を形成するので、効率のよい蓄熱回収を行うこと
ができる。Further, according to the second aspect of the present invention, even when the heat exchange section (81) can collect heat in the ice making circuit, the jet flow from the inflow pipe (91) moves the iced substance to the outside of the inflow flow field. In addition, since the liquid space (S) is formed while melting the iced matter, the heat storage can be efficiently recovered.
【００２１】また、請求項３に係る発明によれば、絞り
部（９７）により蓄冷材（Ｗ）の噴流速度を増加するの
で、蓄熱運転時と蓄熱冷房運転時とにおける流入管（９
１）の詰まり防止と、蓄熱冷房運転時における氷化物の
融解促進とをより効果的に行うことができる。Further, according to the third aspect of the present invention, since the jet speed of the regenerator material (W) is increased by the throttle portion (97), the inflow pipe (9) in the regenerator operation and the regenerator cooling operation is increased.
It is possible to more effectively prevent the clogging in 1) and promote the melting of the iced matter during the heat storage cooling operation.
【００２２】[0022]
【実施例】以下、本発明の実施例を図面に基づき説明す
る。Embodiments of the present invention will be described below with reference to the drawings.
【００２３】図１〜図６は請求項１に係る発明の第１実
施例を示す。図１は、本実施例の製氷装置（Ｍ）を備え
た空気調和装置（Ｎ）の全体構成を示し、室外ユニット
（Ｘ）に対して、複数の室内ユニット（Ａ），（Ａ），
…が接続されたいわゆるマルチ形空気調和装置である。1 to 6 show a first embodiment of the invention according to claim 1. FIG. 1 shows the overall configuration of an air conditioner (N) equipped with the ice making device (M) of the present embodiment, wherein a plurality of indoor units (A), (A),
... is a so-called multi-type air conditioner connected.
【００２４】上記室外ユニット（Ｘ）においては、
（１）は第１圧縮機、（１１）は第２圧縮機（１１）、
（２）は図中実線と図中破線との２方向に切り換わる四
路切換弁、（３）は冷房運転時には凝縮器として暖房運
転時には蒸発器として機能する熱源側空気熱交換器とし
ての室外熱交換器、（４）は通常冷房運転時には冷媒流
量調節弁として機能し、暖房運転時と蓄熱冷房運転時と
には冷媒を減圧する高熱源側減圧機構として機能する室
外電動膨脹弁である。In the outdoor unit (X),
(1) is the first compressor, (11) is the second compressor (11),
(2) is a four-way switching valve that switches in two directions, a solid line in the figure and a broken line in the figure, and (3) is an outdoor as a heat source side air heat exchanger that functions as a condenser during cooling operation and as an evaporator during heating operation. The heat exchanger (4) is an outdoor electric expansion valve that functions as a refrigerant flow rate control valve during normal cooling operation, and functions as a high heat source-side pressure reducing mechanism that reduces the pressure of the refrigerant during heating operation and heat storage cooling operation.
【００２５】一方、各室内ユニット（Ａ），（Ａ），…
は、同一構成のものが並列に接続されており、（６）は
冷房運転時には利用側減圧機構として機能し、暖房運転
時には冷媒流量調整弁として機能する室内電動膨脹弁、
（７）は冷房運転時には蒸発器として、暖房運転時には
凝縮器として機能する利用側熱交換器としての室内熱交
換器である。On the other hand, each indoor unit (A), (A), ...
Are connected in parallel with each other, and (6) is an indoor electric expansion valve that functions as a use-side pressure reducing mechanism during cooling operation and as a refrigerant flow rate adjusting valve during heating operation,
(7) is an indoor heat exchanger as a utilization side heat exchanger that functions as an evaporator during cooling operation and as a condenser during heating operation.
【００２６】そして、上記第１圧縮機（１）と、四路切
換弁（２）と、室外熱交換器（３）と、室外電動膨脹弁
（４）とが順次接続された高熱源側回路（Ｂ）と、室外
電動膨脹弁（４）側より各室内ユニットの（Ａ），
（Ａ），…の室内電動膨脹弁（６），（６），…と室内
熱交換器（７），（７），…とが順次接続された利用側
回路（Ｃ）とが形成され、高熱源側回路（Ｂ）の室外電
動膨脹弁（４）側と利用側回路（Ｃ）の室内電動膨脹弁
（６），（６），…側とが接続部（ｇ）において接続さ
れる一方、利用側回路（Ｃ）の室内熱交換器（７），
（７），…側は四路切換弁（２）に接続されて、冷媒が
可逆循環して室外空気との熱交換によって得た熱を室内
空気に放出するヒートポンプ作用を有する主冷媒回路
（Ｅ）が形成されている。A high heat source side circuit in which the first compressor (1), the four-way switching valve (2), the outdoor heat exchanger (3), and the outdoor electric expansion valve (4) are sequentially connected. (B) and (A) of each indoor unit from the outdoor electric expansion valve (4) side,
(A), ... Indoor electric expansion valves (6), (6), ... And indoor heat exchangers (7), (7) ,. The outdoor electric expansion valve (4) side of the high heat source side circuit (B) and the indoor electric expansion valves (6), (6), ... Side of the use side circuit (C) are connected at a connection portion (g). , Indoor heat exchanger (7) of the user side circuit (C),
The main refrigerant circuit (E) having a heat pump function is connected to the four-way switching valve (2) on the (7), ... Sides, and the heat obtained by heat exchange with the outdoor air is recirculated through the refrigerant and released to the indoor air. ) Has been formed.
【００２７】また、主冷媒回路（Ｅ）には、高熱源側回
路（Ｂ）に対して並列に低熱源側回路（Ｈ）が接続さ
れ、つまり、低熱源側回路（Ｈ）は、一端が第１圧縮機
（１）の吸込側に、他端が上記接続部（ｇ）に接続され
ている。低熱源側回路（Ｈ）には、第１圧縮機（１）側
より第２圧縮機（１１）と、低熱源側熱交換器（１３）
と、蓄熱冷房運転時に流量調整をする低熱源側電動膨脹
弁（１４）とが順次接続されている。第１圧縮機（１）
の吐出側と第２圧縮機（１１）の吐出側との間には、第
１圧縮機（１）から第２圧縮機（１１）への冷媒の流入
を阻止する逆止弁（１７）と、ピークカット用電磁弁
（１９）とが並列に接続されている。また、上記空気調
和装置（Ｎ）には、冷媒との熱交換により冷熱を蓄熱す
る蓄熱運転と、この蓄熱を利用して冷房を行う蓄熱冷房
運転とを行うための製氷装置（Ｍ）が配置されている。The low heat source side circuit (H) is connected in parallel to the high heat source side circuit (B) to the main refrigerant circuit (E), that is, one end of the low heat source side circuit (H) is connected. The other end of the first compressor (1) is connected to the connection part (g) on the suction side. The low heat source side circuit (H) includes a second compressor (11) from the first compressor (1) side and a low heat source side heat exchanger (13).
And a low heat source side electric expansion valve (14) that adjusts the flow rate during the heat storage cooling operation are sequentially connected. First compressor (1)
A check valve (17) for blocking the inflow of the refrigerant from the first compressor (1) to the second compressor (11) between the discharge side of the second compressor (11) and the discharge side of the second compressor (11). , And the peak cut solenoid valve (19) are connected in parallel. Further, the air conditioner (N) is provided with an ice making device (M) for performing a heat storage operation of storing cold heat by exchanging heat with a refrigerant and a heat storage cooling operation of performing cooling using this heat storage. Has been done.
【００２８】該製氷装置（Ｍ）は、スラリー状に氷化さ
れた蓄冷材（Ｗ）を貯溜して冷熱を蓄熱する蓄氷槽（２
１）と、ポンプ（２３）と、低熱源側熱交換器（１３）
と、冷媒との熱交換によって蓄冷材（Ｗ）を過冷却す
る、請求項１に係る発明の冷却手段としての過冷却生成
熱交換器（２５）と、凍結進展防止部（３１）と、蓄冷
材（Ｗ）の過冷却状態を解消する過冷却解消部（２７）
とが循環路（２９）によって蓄冷材（Ｗ）の循環可能に
順次接続されて閉回路の製氷回路（Ｙ）に形成されてい
る。蓄冷材（Ｗ）としては、水または水溶液が用いられ
る。The ice making device (M) stores an ice storage tank (2) which stores the cold storage material (W) which has been frozen into a slurry and stores cold heat.
1), pump (23), low heat source side heat exchanger (13)
And a supercooling generation heat exchanger (25) as a cooling means of the invention according to claim 1, which supercools the regenerator material (W) by heat exchange with a refrigerant, a freezing progress preventing portion (31), and a cool storage Supercooling elimination section (27) for eliminating the supercooled state of the material (W)
And are sequentially connected by a circulation path (29) so that the regenerator material (W) can be circulated, and are formed in a closed circuit ice making circuit (Y). Water or an aqueous solution is used as the cold storage material (W).
【００２９】上記低熱源側熱交換器（１３）は、蓄熱運
転時には蓄冷材（Ｗ）を予熱する凝縮器として機能し、
蓄熱冷房運転時には冷媒と蓄冷材（Ｗ）との熱交換によ
り冷熱を回収する凝縮器として機能するように構成され
ている。The low heat source side heat exchanger (13) functions as a condenser for preheating the cold storage material (W) during the heat storage operation,
During the heat storage cooling operation, it is configured to function as a condenser that recovers cold heat by exchanging heat between the refrigerant and the cold storage material (W).
【００３０】また、上記製氷回路（Ｙ）の過冷却生成熱
交換器（２５）への冷熱の供給を目的として、主冷媒回
路（Ｅ）には過冷却生成回路（Ｆ）が接続されている。
該過冷却生成回路（Ｆ）は、流入端（３３ａ）が主冷媒
回路（Ｅ）の接続部（ｇ）に接続され、低熱源側回路
（Ｈ）との共通管路（３５）を経て分岐部（３７）で低
熱源側回路（Ｈ）と分岐して流出端（３３ｂ）が両圧縮
機（１），（１１）の吸込側に接続され、該過冷却生成
回路（Ｆ）には接続部（ｇ）側より蓄熱運転時に減圧機
構として機能する水側電動膨脹弁（３９）と、過冷却生
成熱交換器（２５）とが順次介設されている。A supercooling generation circuit (F) is connected to the main refrigerant circuit (E) for the purpose of supplying cold heat to the supercooling generation heat exchanger (25) of the ice making circuit (Y). .
The supercooling generation circuit (F) has an inflow end (33a) connected to the connection portion (g) of the main refrigerant circuit (E), and branches via a common pipe line (35) with the low heat source side circuit (H). The part (37) is branched from the low heat source side circuit (H), the outflow end (33b) is connected to the suction side of both compressors (1) and (11), and is connected to the supercooling generation circuit (F). A water side electric expansion valve (39) that functions as a pressure reducing mechanism during heat storage operation and a subcooling generation heat exchanger (25) are sequentially provided from the part (g) side.
【００３１】過冷却生成熱交換器（２５）は、満液式で
あって、液冷媒の液面を調整して冷却能力が制御される
ようになっている。The subcooling generation heat exchanger (25) is a full liquid type, and the cooling capacity is controlled by adjusting the liquid surface of the liquid refrigerant.
【００３２】そして、請求項２に係る発明の特徴とし
て、上記低熱源側熱交換器（１３）と過冷却生成熱交換
器（２５）とで熱交換部（８１）が構成され、該熱交換
部（８１）は、冷凍回路である主冷媒回路（Ｅ）に接続
され、蓄熱運転時に冷媒との熱交換により蓄冷材（Ｗ）
を過冷却する蒸発器としての過冷却生成熱交換器（２
５）と、蓄熱冷房運転時に冷媒との熱交換により蓄冷材
（Ｗ）の冷熱を回収する凝縮器としての低熱源側熱交換
器（１３）とに切換可能に構成されている。Further, as a feature of the invention according to claim 2, a heat exchange section (81) is constituted by the low heat source side heat exchanger (13) and the supercooling generation heat exchanger (25), and the heat exchange is performed. The part (81) is connected to the main refrigerant circuit (E) which is a refrigerating circuit, and the heat storage material (W) is exchanged by heat exchange with the refrigerant during heat storage operation.
Subcooling production heat exchanger (2
5) and a low heat source side heat exchanger (13) as a condenser for recovering the cold heat of the cold storage material (W) by heat exchange with the refrigerant during the heat storage cooling operation.
【００３３】また、上記凍結進展防止部（３１）は、過
冷却解消部（２７）における過冷却状態の解消によって
生成した氷化物が循環路（２９）の管壁に付着して凍結
が発生した場合に過冷却生成熱交換器（２５）への凍結
進展を防止するようになっている。Further, in the freezing progress preventing section (31), the frozen product generated by the elimination of the supercooled state in the supercooling elimination section (27) adheres to the pipe wall of the circulation path (29) to cause freezing. In this case, it is designed to prevent the freezing of heat to the supercooled product heat exchanger (25).
【００３４】凍結進展防止部（３１）への暖熱の供給を
目的として、第２圧縮機（１１）の吐出側に流入端（４
１ａ）が、過冷却生成回路（Ｆ）の水側電動膨脹弁（３
９）より上流側に流出端（４１ｂ）がそれぞれ接続され
て第１バイパス路（４１）が形成され、該第１バイパス
路（４１）には流入端（４１ａ）側より凍結進展防止部
（３１）と冷媒冷却用電動膨脹弁（４３）とが介設され
ている。The inflow end (4) is provided on the discharge side of the second compressor (11) for the purpose of supplying warm heat to the freezing progress prevention section (31).
1a) is a water-side electric expansion valve (3) of the supercooling generation circuit (F)
9) The outflow end (41b) is connected to the upstream side of each of them to form a first bypass passage (41), and the first bypass passage (41) is connected to the freezing progress preventing portion (31) from the inflow end (41a) side. ) And an electric expansion valve (43) for cooling the refrigerant.
【００３５】さらに、過冷却解消部（２７）への冷熱の
供給を目的として、第１バイパス路（４１）の冷媒冷却
用電動膨脹弁（４３）より下流側に流入端（４５ａ）
が、過冷却生成回路（Ｆ）の過冷却生成熱交換器（２
５）より下流側に流出端（４５ｂ）がそれぞれ接続され
て第２バイパス路（４５）が形成され、該第２バイパス
路（４５）には過冷却解消部（２７）が介設されてい
る。Further, for the purpose of supplying cold heat to the subcooling elimination portion (27), an inflow end (45a) is provided downstream of the electric refrigerant expansion expansion valve (43) in the first bypass passage (41).
Of the subcooling generation heat exchanger (2) of the subcooling generation circuit (F).
5) The outflow ends (45b) are respectively connected to the downstream side to form a second bypass passage (45), and a supercooling elimination portion (27) is provided in the second bypass passage (45). .
【００３６】また、室外熱交換器（３）より下流側の高
熱源側回路（Ｂ）に、室外電動膨脹弁（４）と、室外熱
交換器（３）からの凝縮冷媒をガス冷媒と液冷媒とに分
離する気液分離器（６１）とが順次介設されている。気
液分離器（６１）のガス流出口（６３）にはガス通路
（６５）の一端が接続され、該ガス通路（６５）の他端
が第２圧縮機（１１）と低熱源側熱交換器（１３）との
間の低熱源側回路（Ｈ）に接続されている。ガス通路
（６５）には、第２圧縮機（１１）からの高圧ガスの流
入防止のための逆止弁（７３）が介設されている。Further, in the high heat source side circuit (B) on the downstream side of the outdoor heat exchanger (3), the outdoor electric expansion valve (4) and the condensed refrigerant from the outdoor heat exchanger (3) are mixed with gas refrigerant and liquid. A gas-liquid separator (61) that separates into a refrigerant is sequentially provided. One end of a gas passage (65) is connected to the gas outlet (63) of the gas-liquid separator (61), and the other end of the gas passage (65) exchanges heat with the second compressor (11) on the low heat source side. It is connected to the low heat source side circuit (H) between the container (13). A check valve (73) for preventing the inflow of high-pressure gas from the second compressor (11) is provided in the gas passage (65).
【００３７】また、気液分離器（６１）と合流点（ｇ）
との間に、蓄熱冷房運転時にガス通路（６５）によるガ
ス抜きを可能にするためのキャピラリーチューブ（７
１）が設けられている。また、気液分離器（６１）より
下流側の高熱源側回路（Ｈ）と接続部（ｇ）付近の利用
側回路（Ｃ）との間を接続して逆止弁（７４）が介設さ
れ、該逆止弁（７４）は、暖房運転時にキャピラリーチ
ューブ（７１）をバイパスして冷媒を気液分流器（６
１）に流通させるようになっている。Further, the confluence point (g) with the gas-liquid separator (61)
And a capillary tube (7) for enabling degassing by the gas passage (65) during the heat storage cooling operation.
1) is provided. Further, a check valve (74) is provided to connect the high heat source side circuit (H) downstream of the gas-liquid separator (61) and the utilization side circuit (C) near the connection part (g). The check valve (74) bypasses the capillary tube (71) during the heating operation to pass the refrigerant through the gas-liquid distributor (6).
It is supposed to be distributed to 1).
【００３８】そして、各種運転モードに応じて、上記各
弁の切り換えあるいは開度の調節を行い、冷媒の循環経
路を切り換えるように構成されている。次に、上記空気
調和装置（Ｎ）の各運転モードにおける回路構成と冷媒
の循環動作について説明する。図１に示すように、通常
冷房運転時には、四路切換弁（２）を実線側に切り換
え、低熱源側電動膨脹弁（１４）と、水側電動膨脹弁
（３９）と、冷媒冷却用電動膨脹弁（４３）と、ピーク
カット用電磁弁（１９）とを閉制御する一方、室外電動
膨脹弁（４）と、室内電動膨脹弁（６），（６），…と
を開制御して、冷媒が主冷媒回路（Ｅ）のみを流れる運
転制御状態にする。第１圧縮機（１）および第２圧縮機
（１１）の吐出冷媒は、室外熱交換器（３）で凝縮し、
室内電動膨脹弁（６），（６），…で減圧された後、室
内熱交換器（７），（７），…で蒸発して両圧縮機
（１），（１１）に戻る。The respective valves are switched or the openings thereof are adjusted according to various operation modes to switch the refrigerant circulation path. Next, a circuit configuration and a refrigerant circulation operation in each operation mode of the air conditioner (N) will be described. As shown in FIG. 1, during normal cooling operation, the four-way switching valve (2) is switched to the solid line side, and the low heat source side electric expansion valve (14), the water side electric expansion valve (39), and the refrigerant cooling electric motor. While controlling the expansion valve (43) and the peak cut solenoid valve (19) to be closed, the outdoor electric expansion valve (4) and the indoor electric expansion valves (6), (6), ... Are open-controlled. , The operation control state in which the refrigerant flows only through the main refrigerant circuit (E). The refrigerant discharged from the first compressor (1) and the second compressor (11) is condensed in the outdoor heat exchanger (3),
After being decompressed by the indoor electric expansion valves (6), (6), ..., Evaporated by the indoor heat exchangers (7), (7), ... And returned to both compressors (1), (11).
【００３９】暖房運転時には、四路切換弁（２）を破線
側に切り換え、低熱源電動膨脹弁（１４）と、水側電動
膨脹弁（３９）と、冷媒冷却用電動膨脹弁（４３）と、
ピークカット用電磁弁（１９）とを閉制御する一方、室
外電動膨脹弁（４）と、室内電動膨脹弁（６），
（６），…とを開制御して、冷媒が主冷媒回路（Ｅ）の
みを流れる運転制御状態にする。両圧縮機（１），（１
１）の吐出冷媒は、室内熱交換器（７），（７），…で
凝縮し、室外電動膨脹弁（４）で減圧された後、室外熱
交換器（３）で蒸発して両圧縮機（１），（１１）に戻
る。During the heating operation, the four-way switching valve (2) is switched to the broken line side, and the low heat source electric expansion valve (14), the water side electric expansion valve (39), and the refrigerant cooling electric expansion valve (43). ,
While controlling the peak cut solenoid valve (19) to be closed, the outdoor electric expansion valve (4) and the indoor electric expansion valve (6),
(6), ... Are controlled to be in an operation control state in which the refrigerant flows only through the main refrigerant circuit (E). Both compressors (1), (1
The refrigerant discharged from 1) is condensed in the indoor heat exchangers (7), (7), ..., Decompressed by the outdoor electric expansion valve (4), and then evaporated in the outdoor heat exchanger (3) to both compressions. Return to machines (1) and (11).
【００４０】蓄熱運転時には、四路切換弁（２）を実線
側に切り換え、室外電動膨脹弁（４）と、低熱源側電動
膨脹弁（１４）と、水側電動膨脹弁（３９）と、冷媒冷
却用電動膨脹弁（４３）とを開制御する一方、室内電動
膨脹弁（６），（６），…と、ピークカット用電磁弁
（１９）とを閉制御して、高熱源側回路（Ｂ）と、低熱
源側回路（Ｈ）と、過冷却生成回路（Ｆ）と、第１バイ
パス路（４１）と、第２バイパス路（４５）とが冷媒の
流通可能な状態になる一方、利用側回路（Ｃ）への冷媒
の流通が遮断される運転制御状態にする。第１圧縮機
（１）の吐出冷媒は、室外熱交換器（３）で凝縮し、過
冷却生成回路（Ｆ）に流れ、水側電動膨脹弁（３９）で
減圧された後過冷却生成熱交換器（２５）で蒸発し、高
熱源側回路（Ｂ）に再び流入して第１圧縮機（１）に戻
る。During the heat storage operation, the four-way switching valve (2) is switched to the solid line side, and the outdoor electric expansion valve (4), the low heat source side electric expansion valve (14), the water side electric expansion valve (39), The refrigerant expansion electric expansion valve (43) is open-controlled, while the indoor electric expansion valves (6), (6), ... And the peak cut solenoid valve (19) are closed to control the high heat source side circuit. (B), the low heat source side circuit (H), the supercooling generation circuit (F), the first bypass path (41), and the second bypass path (45) are in a state in which the refrigerant can flow. , The operation control state in which the circulation of the refrigerant to the use side circuit (C) is cut off. The refrigerant discharged from the first compressor (1) is condensed in the outdoor heat exchanger (3), flows into the subcooling generation circuit (F), is decompressed by the water-side electric expansion valve (39), and then is cooled by the subcooling generation heat. It evaporates in the exchanger (25), flows into the high heat source side circuit (B) again, and returns to the first compressor (1).
【００４１】一方、第２圧縮機（１１）の吐出冷媒は、
第１バイパス路（４１）と低熱源側回路（Ｈ）とに分岐
する。第１バイパス路（４１）に流れた冷媒は、凍結進
展防止部（３１）で凝縮し、冷媒冷却用電動膨脹弁（４
３）で減圧されて冷媒温度が０℃より低温に冷却された
後、一部が第２バイパス路（４５）に分岐して過冷却解
消部（２７）で蒸発して過冷却生成回路（Ｆ）を経て第
２圧縮機（１１）に戻る。冷媒の残部はそのまま第１バ
イパス路（４１）を流れて過冷却生成回路（Ｆ）に合流
し、過冷却解消部（２７）を経て第２圧縮機（１１）に
戻る。On the other hand, the refrigerant discharged from the second compressor (11) is
It branches into the first bypass path (41) and the low heat source side circuit (H). The refrigerant that has flowed into the first bypass passage (41) is condensed in the freezing progress prevention unit (31), and the refrigerant cooling electric expansion valve (4) is condensed.
After the pressure is reduced in 3) and the refrigerant temperature is cooled to lower than 0 ° C., a part of the refrigerant is branched to the second bypass passage (45) and evaporated in the supercooling elimination section (27) to generate the supercooling generation circuit (F). ), And returns to the second compressor (11). The remaining portion of the refrigerant flows through the first bypass passage (41) as it is, joins the supercooling generation circuit (F), and returns to the second compressor (11) via the supercooling elimination portion (27).
【００４２】また、低熱源側回路（Ｈ）に流れた冷媒
は、低熱源側熱交換器（１３）で凝縮し、分岐部（３
７）で高熱源側回路（Ｂ）からの液冷媒と合流して過冷
却生成回路（Ｆ）に流れ、過冷却解消部（２７）を経て
第２圧縮機（１１）に戻る。Further, the refrigerant flowing into the low heat source side circuit (H) is condensed in the low heat source side heat exchanger (13) and is branched into the branch portion (3).
In 7), it merges with the liquid refrigerant from the high heat source side circuit (B), flows into the subcooling generation circuit (F), and returns to the second compressor (11) via the subcooling elimination section (27).
【００４３】上記冷媒流通状態において、冷媒は、低熱
源側熱交換器（１３）で蓄冷材（Ｗ）を予熱して蓄冷材
（Ｗ）中に氷化物が混在している場合には該氷化物を融
解し、過冷却生成熱交換器（２５）で循環路（２９）を
流通する蓄冷材（Ｗ）を過冷却し、凍結進展防止部（３
１）で循環路（２９）の管壁を加温して凍結の進展を防
止し、過冷却解消部（２７）で蓄冷材（Ｗ）の過冷却状
態を解消して氷化を開始させてスラリー状の氷化物を生
成する。そして、氷化物は蓄氷槽（２１）に貯溜されて
冷熱が蓄えられる。In the refrigerant circulation state, the refrigerant preheats the cold storage material (W) in the low heat source side heat exchanger (13), and when the cold storage material (W) contains iced substances, the ice is mixed. The cold storage material (W) flowing through the circulation path (29) in the supercooling heat exchanger (25) is supercooled, and the freezing progress prevention section (3) is melted.
In 1), the tube wall of the circulation path (29) is heated to prevent the progress of freezing, and the supercooling elimination section (27) eliminates the supercooled state of the regenerator material (W) to start icing. It produces a slurry of iced material. Then, the iced matter is stored in the ice storage tank (21) to store cold heat.
【００４４】蓄熱冷房運転時には、四路切換弁（２）が
実線側に切り換えられ、水側電動膨脹弁（３９）と、冷
媒冷却用電動膨脹弁（４３）と、ピークカット用電磁弁
（１９）とを閉制御する一方、室外電動膨脹弁（４）
と、室内電動膨脹弁（６），（６），…と、低熱源側電
動膨脹弁（１４）とを開制御して、高熱源側回路（Ｂ）
と低熱源側回路（Ｈ）とに分流する冷媒が利用側回路
（Ｃ）に合流して流れる運転制御状態にする。高熱源側
回路（Ｂ）における第１圧縮機（１）の吐出冷媒は、室
外熱交換器（３）で凝縮され、室外電動膨脹弁（４）で
低熱源側回路（Ｈ）の液管圧力にまで減圧される一方、
低熱源側回路（Ｈ）における第２圧縮機（１１）の吐出
冷媒は、低熱源側熱交換器（１３）で凝縮され、両凝縮
冷媒は主冷媒回路（Ｅ）の接続部（ｇ）で合流して利用
側回路（Ｃ）に流れ、室内電動膨脹弁（６），（６），
…で減圧され、室内熱交換器（７），（７），…で蒸発
した後高熱源側回路（Ｂ）に流入し、両圧縮機（１），
（１１）に戻る。During the heat storage cooling operation, the four-way switching valve (2) is switched to the solid line side, the water side electric expansion valve (39), the refrigerant cooling electric expansion valve (43), and the peak cut solenoid valve (19). ) And closed control, while outdoor electric expansion valve (4)
, The indoor electric expansion valves (6), (6), ... And the low heat source side electric expansion valve (14) are controlled to be opened, and the high heat source side circuit (B).
And the low heat source side circuit (H) are brought into the operation control state in which the refrigerant is branched and flows into the utilization side circuit (C). The refrigerant discharged from the first compressor (1) in the high heat source side circuit (B) is condensed by the outdoor heat exchanger (3), and the liquid pressure of the low heat source side circuit (H) is condensed by the outdoor electric expansion valve (4). While the pressure is reduced to
The refrigerant discharged from the second compressor (11) in the low heat source side circuit (H) is condensed in the low heat source side heat exchanger (13), and both condensed refrigerants are connected in the connection portion (g) of the main refrigerant circuit (E). The flow merges into the use side circuit (C), and the indoor electric expansion valves (6), (6),
It is decompressed by ... and evaporated in the indoor heat exchangers (7), (7), ..., then flows into the high heat source side circuit (B), and both compressors (1),
Return to (11).
【００４５】キャピラリーチューブ（７１）が高熱源側
回路（Ｂ）の液管の圧力を減圧することにより、ガス通
路（６５）を介して高熱源側回路（Ｂ）のフラッシュガ
スがガス抜きされ、低熱源側熱交換器（１３）の凝縮温
度が低温度の設定値に保持される。しかも、第２圧縮機
（１１）の吐出側にガス抜きするので、冷媒循環量が減
少することなく冷房運転が行われる。The capillary tube (71) reduces the pressure of the liquid pipe of the high heat source side circuit (B), so that the flash gas of the high heat source side circuit (B) is degassed through the gas passage (65). The condensation temperature of the low heat source side heat exchanger (13) is maintained at a low temperature set value. Moreover, since the discharge side of the second compressor (11) is degassed, the cooling operation is performed without reducing the refrigerant circulation amount.
【００４６】さらに、上記蓄熱冷房運転の一態様とし
て、電力使用量がピークに達する日中においては、蓄熱
だけを利用する蓄熱専用冷房運転を行う。つまり、上記
蓄熱冷房運転時において、室外電動膨脹弁（４）を閉制
御して高熱源側回路（Ｂ）を遮断する一方、ピークカッ
ト用電磁弁（１９）を開制御して第１圧縮機（１）から
の冷媒を低熱源側回路（Ｈ）に流通させる運転制御状態
にする。両圧縮機（１），（１１）の吐出冷媒は、低熱
源側熱交換器（１３）だけで凝縮されるので、日中の圧
縮機の容量を減少することができ、電力使用量の低減と
安定した冷房運転が可能になる。Further, as one mode of the heat storage cooling operation, during the day when the electric power consumption reaches its peak, a heat storage dedicated cooling operation using only heat storage is performed. That is, during the heat storage cooling operation, the outdoor electric expansion valve (4) is closed to shut off the high heat source side circuit (B), while the peak cut solenoid valve (19) is opened to control the first compressor. The operation control state in which the refrigerant from (1) is circulated to the low heat source side circuit (H) is set. Since the refrigerant discharged from both compressors (1) and (11) is condensed only by the low heat source side heat exchanger (13), it is possible to reduce the capacity of the compressor during the daytime and reduce the power consumption. And stable cooling operation becomes possible.
【００４７】次に、請求項１に係る発明の特徴として、
図２および図３に示すように、蓄氷槽（２１）は平面視
正方形状の容器に形成され、側壁に流入口（８５）が底
壁に流出口（８７）がそれぞれ形成されている。Next, as a feature of the invention according to claim 1,
As shown in FIGS. 2 and 3, the ice storage tank (21) is formed into a square container in plan view, and an inlet (85) is formed on the side wall and an outlet (87) is formed on the bottom wall.
【００４８】上記流入口（８５）には、上記循環路（２
９）に連接された流入管（９１）が接続され、該流入管
（９１）は蓄氷槽（２１）内の中央部の正方形中心にま
で延設され、図４に示すように、先端部が湾曲形成され
て上方に開口した開口部（９３）に形成されている。該
開口部（９３）は、液状の蓄冷材（Ｗ）の貯溜空間（液
空間）（Ｓ）を形成する噴流を生起するように構成され
ている。At the inlet (85), the circulation path (2
9) is connected to an inflow pipe (91), and the inflow pipe (91) is extended to the center of the square in the center of the ice storage tank (21). As shown in FIG. Is formed in an opening (93) that is curved and opens upward. The opening (93) is configured to generate a jet flow that forms a storage space (liquid space) (S) of the liquid cool storage material (W).
【００４９】次に、上記流入管（９１）の作動について
説明する。蓄熱運転時に、過冷却生成熱交換器（２５）
に冷媒が流通して蒸発器として機能し、過冷却生成熱交
換器（２５）で過冷却された蓄冷材（Ｗ）が、過冷却状
態を解消されて氷化し、氷化物が混在する蓄冷材（Ｗ）
が循環路（２９）を流通して流入管（９１）より蓄氷槽
（２１）に流入し、蓄氷槽（２１）内に氷化物が貯溜さ
れる。Next, the operation of the inflow pipe (91) will be described. Subcooling generation heat exchanger (25) during heat storage operation
The cold storage material (W) superheated in the supercooling generation heat exchanger (25) by flowing the refrigerant into the evaporator and functioning as an evaporator is freed from the supercooled state to be iced, and a cold storage material in which a frozen product is mixed. (W)
Circulates through the circulation path (29) and flows into the ice storage tank (21) through the inflow pipe (91), and the iced product is stored in the ice storage tank (21).
【００５０】流入管（９１）は、図５に示すように、液
空間（Ｓ）を形成する噴流を生起するので、噴流の流入
流域に氷化物が蓄積していても噴流によって流入流域外
に押し退けられ、流入管（９１）内に氷化物が侵入して
詰まることがない。As shown in FIG. 5, the inflow pipe (91) produces a jet forming a liquid space (S). Therefore, even if the ice deposits are accumulated in the inflow region of the jet, the inflow pipe is moved to the outside of the inflow region by the jet. It is pushed away, and the iced substance does not enter the inflow pipe (91) to be clogged.
【００５１】また、蓄熱冷房運転時には、低熱源側熱交
換器（１３）に冷媒が流通して凝縮器として機能し、低
熱源側熱交換器（１３）で冷媒との熱交換により温度上
昇した蓄冷材（Ｗ）が蓄氷槽（２１）に流入する。一
方、図６に示すように、流入管（９１）からの噴流が液
空間（Ｓ）を形成するので、ＩＰＦが大きい運転開始時
においても蓄冷材の流入が確保される。また、温かい噴
流が液中の氷化物の蓄積層に噴き付けるので、噴流の勢
いによって氷化物の融解が促進されて効率のよい蓄熱回
収が行われる。During the heat storage cooling operation, the refrigerant flows through the low heat source side heat exchanger (13) to function as a condenser, and the temperature of the low heat source side heat exchanger (13) rises due to heat exchange with the refrigerant. The cold storage material (W) flows into the ice storage tank (21). On the other hand, as shown in FIG. 6, since the jet flow from the inflow pipe (91) forms the liquid space (S), the inflow of the cold storage material is secured even at the start of the operation when the IPF is large. Further, since the warm jet stream is sprayed onto the accumulation layer of the iced substance in the liquid, the momentum of the jet stream promotes the melting of the iced substance and the efficient heat storage recovery is performed.
【００５２】本実施例によれば、流入管（９１）が液空
間（Ｓ）を形成する噴流を生起するので、流入管（９
１）の詰まりを防止することができ、蓄冷材（Ｗ）中に
流入管（９１）が開口していても常に蓄氷槽（２１）へ
の氷化物の流入を確保することができる。したがって、
所定容積の貯溜容量に対して上部空間をできるだけ小さ
くして蓄氷槽（２１）を小容量化する場合にも流入管
（９１）の詰まりによるＩＰＦの低下を防止することが
できる。According to this embodiment, since the inflow pipe (91) produces a jet forming the liquid space (S), the inflow pipe (9)
It is possible to prevent the clogging of 1), and it is possible to always ensure the inflow of the iced product into the ice storage tank (21) even if the inflow pipe (91) is opened in the cold storage material (W). Therefore,
Even when the upper space is made as small as possible with respect to the storage volume of a predetermined volume to reduce the capacity of the ice storage tank (21), it is possible to prevent the IPF from being lowered due to the clogging of the inflow pipe (91).
【００５３】また、熱交換部（８１）により製氷回路
（Ｙ）が蓄熱回収可能な場合においても、流入管（９
１）からの噴流が氷化物を流入流域外に移動させると共
に氷化物を融解しながら液空間（Ｓ）を形成するので、
効率のよい蓄熱回収を行うことができる。Further, even when the heat exchange section (81) allows the ice making circuit (Y) to store and recover heat, the inflow pipe (9)
Since the jet stream from 1) moves the iced substance to the outside of the inflow region and forms the liquid space (S) while melting the iced substance,
It is possible to perform efficient heat storage recovery.
【００５４】また、流入管（９１）の開口部（９３）は
蓄氷槽（２１）の正方形中心に配置されているので、図
６に示すように、氷化物の蓄積層の中央部に液空間
（Ｓ）を形成することができ、流入流域外への円滑な氷
化物の移動と、噴流による氷化物の融解促進とが可能に
なると共に、蓄冷材の流入を単一の開口部（９３）で行
うことができて噴流を得るための液圧を容易に確保する
ことができる。Since the opening (93) of the inflow pipe (91) is arranged at the center of the square of the ice storage tank (21), as shown in FIG. A space (S) can be formed, smooth movement of the iced substance to the outside of the inflow basin and promotion of melting of the iced substance by the jet flow, and the inflow of the regenerator material into a single opening (93). ), It is possible to easily secure the hydraulic pressure for obtaining the jet flow.
【００５５】また、流入管（９１）の開口部（９３）は
上方に向かって開口形成されているので、蓄氷槽（２
１）の上部から形成されていく氷化物の蓄積層に直接噴
流を当てることができ、流入流域外への氷化物の移動と
氷化物の融解とを効果的に行うことができる。Further, since the opening portion (93) of the inflow pipe (91) is formed to open upward, the ice storage tank (2
The jet stream can be directly applied to the glacial accumulation layer formed from the upper part of 1), and the movement of the glides outside the inflow region and the melting of the glides can be effectively performed.
【００５６】次に、図７は請求項３に係る発明の第２実
施例を示す。本実施例では、流入管（９１）は、開口部
（９３）が蓄冷材（Ｗ）の噴流速度を増加する絞り部
（９７）に構成されている。Next, FIG. 7 shows a second embodiment of the invention according to claim 3. In the present embodiment, the inflow pipe (91) has the opening (93) as a throttle (97) for increasing the jet velocity of the regenerator material (W).
【００５７】したがって、液空間（Ｓ）をにより、確実
に形成され、蓄熱運転時と蓄熱冷房運転時とにおける流
入管（９１）の詰まり防止と、蓄熱冷房運転時における
氷化物の融解促進とをより効果的に行うことができる。Therefore, the liquid space (S) is reliably formed to prevent clogging of the inflow pipe (91) during the heat storage operation and the heat storage cooling operation, and to promote the melting of the iced matter during the heat storage cooling operation. It can be done more effectively.
【００５８】次に、図８および図９は請求項３に係る発
明の第３実施例を示す。本実施例では、蓄氷槽（２１）
が、第１実施例の正方形と同面積の正方形区画が２個集
合した平面視長方形状の容器に形成され、流入管（９
１）の開口部（９３）を複数個形成するものである。Next, FIGS. 8 and 9 show a third embodiment of the invention according to claim 3. In this embodiment, the ice storage tank (21)
Is formed in a container having a rectangular shape in plan view in which two square sections having the same area as the square of the first embodiment are assembled, and the inflow pipe (9
A plurality of openings (93) of 1) are formed.
【００５９】具体的には、蓄氷槽（２１）の短辺側の側
壁より流入管（９１）が蓄氷槽（２１）内に延設され、
上記各正方形中心に流入管（９１）の開口部（９３）が
形成されている。Specifically, an inflow pipe (91) is extended from the side wall on the short side of the ice storage tank (21) into the ice storage tank (21).
An opening (93) of the inflow pipe (91) is formed at the center of each square.
【００６０】したがって、平面視長方形状の容器につい
て、最小限の個数の開口部（９３）で、流入流域外への
円滑な氷化物の移動と、噴流による氷化物の融解促進と
が可能になると共に、蓄冷材の流入を単一の開口部（９
３）で行うことができて噴流を得るための液圧を容易に
確保することができる。Therefore, with respect to the container having a rectangular shape in plan view, it is possible to smoothly move the iced substance to the outside of the inflow region and to promote the melting of the iced substance by the jet stream with the minimum number of openings (93). In addition, a single opening (9
It can be performed in 3) and the hydraulic pressure for obtaining the jet can be easily secured.
【００６１】次に、図１０は第３実施例の変形例を示
す。本変形例は、２本の流出管を蓄氷槽（２１）に配設
し、平面視長方形形状の蓄氷槽（２１）を第１実施例の
正方形と同面積の正方形区画６個の区画集合と想定し
て、各流入管（９１）はそれぞれ３個の正方形中心に開
口部（９３）が形成された形態に構成されている。Next, FIG. 10 shows a modification of the third embodiment. In this modification, two outflow pipes are arranged in the ice storage tank (21), and the ice storage tank (21) having a rectangular shape in plan view is divided into six square sections having the same area as the square of the first embodiment. Assuming that they are a set, each inflow pipe (91) is configured to have an opening (93) formed in the center of each of three squares.
【００６２】本変形例によっても、上記第２実施例と同
様の作用効果を発揮することができる。According to this modification as well, the same operational effects as those of the second embodiment can be exhibited.
【００６３】なお、第１実施例の熱交換部（８１）は、
１台の熱交換器を、冷凍回路に接続し、蓄熱運転時に冷
媒との熱交換により蓄冷材（Ｗ）を過冷却する蒸発器
と、蓄熱冷房運転時に冷媒との熱交換により蓄冷材
（Ｗ）の冷熱を回収する凝縮器とに切換可能に構成して
もよい。The heat exchange section (81) of the first embodiment is
One heat exchanger is connected to the refrigeration circuit, and an evaporator that supercools the cold storage material (W) by heat exchange with the refrigerant during heat storage operation and a cold storage material (W by heat exchange with the refrigerant during heat storage cooling operation). ) And a condenser for recovering the cold heat may be switchable.
【００６４】また、蓄氷槽（２１）の形状は、上記形状
以外、例えば、平面視円形形状であってもよい。The shape of the ice storage tank (21) may be, for example, a circular shape in plan view other than the above-mentioned shape.
【図１】本発明の第１実施例の空気調和装置の配管系統
の回路図である。FIG. 1 is a circuit diagram of a piping system of an air conditioner according to a first embodiment of the present invention.
【図２】本発明の第１実施例の蓄氷槽の平面図である。FIG. 2 is a plan view of the ice storage tank of the first embodiment of the present invention.
【図３】本発明の第１実施例の蓄氷槽の断面図である。FIG. 3 is a sectional view of the ice storage tank of the first embodiment of the present invention.
【図４】本発明の第１実施例の流入管の開口部の拡大断
面図である。FIG. 4 is an enlarged cross-sectional view of the opening of the inflow pipe according to the first embodiment of this invention.
【図５】本発明の第１実施例において、蓄熱最終段階の
蓄熱運転時における液空間の形成を示す蓄氷槽の断面図
である。FIG. 5 is a cross-sectional view of the ice storage tank showing the formation of the liquid space during the heat storage operation at the final stage of heat storage in the first embodiment of the present invention.
【図６】本発明の第１実施例において、蓄熱冷房運転開
始当初における液空間の形成を示す蓄氷槽の断面図であ
る。FIG. 6 is a cross-sectional view of the ice storage tank showing the formation of the liquid space at the beginning of the heat storage cooling operation in the first embodiment of the present invention.
【図７】本発明の第２実施例の流入管の絞り部の拡大断
面図である。FIG. 7 is an enlarged cross-sectional view of the throttle portion of the inflow pipe according to the second embodiment of the present invention.
【図８】本発明の第３実施例の蓄氷槽の平面図である。FIG. 8 is a plan view of an ice storage tank according to a third embodiment of the present invention.
【図９】本発明の第３実施例の蓄氷槽の断面図である。FIG. 9 is a sectional view of an ice storage tank according to a third embodiment of the present invention.
【図１０】本発明の第３実施例の変形例の蓄氷槽の平面
図である。FIG. 10 is a plan view of an ice storage tank according to a modified example of the third embodiment of the present invention.
１３ 低熱源側熱交換器（熱交換部） ２１ 蓄氷槽 ２５ 過冷却生成熱交換器（冷却手段、熱交換部） ８１ 熱交換部 ８５ 流入口 ８７ 流出口 ９１ 流入管 ９３ 開口部 ９７ 絞り部 Ｓ 液状の蓄冷材の貯溜空間（液空間） Ｙ 製氷回路 Ｗ 蓄冷材 13 Low Heat Source Side Heat Exchanger (Heat Exchange Section) 21 Ice Storage Tank 25 Supercooling Generation Heat Exchanger (Cooling Means, Heat Exchange Section) 81 Heat Exchange Section 85 Inlet 87 Outlet 91 Inlet Pipe 93 Opening 97 Throttling S Liquid storage space for cold storage material (liquid space) Y Ice-making circuit W Cold storage material
Claims (3)
貯溜するための蓄氷槽（２１）と、蓄冷材（Ｗ）を過冷
却するための冷却手段（２５）とが蓄冷材（Ｗ）の循環
可能に接続されて製氷回路（Ｙ）が構成され、過冷却さ
れた蓄冷材（Ｗ）の過冷却状態を解消して生成した氷化
物を上記蓄氷槽（２１）に貯溜する製氷装置において、 上記蓄氷槽（２１）には、上記製氷回路（Ｙ）から蓄冷
材（Ｗ）が流入する流入口（８５）が形成されると共
に、上記製氷回路（Ｙ）に蓄冷材（Ｗ）を流出させる流
出口（８７）が形成される一方、 上記蓄氷槽（２１）内には、上記流入口（８５）に接続
されて蓄冷材（Ｗ）中に開口し、液状の蓄冷材（Ｗ）の
貯溜空間（Ｓ）を形成する噴流を生起する流入管（９
１）が設けられていることを特徴とする製氷装置。1. A cold storage material comprising an ice storage tank (21) for storing the cold storage material (W) iced into a slurry and a cooling means (25) for supercooling the cold storage material (W). An ice making circuit (Y) is configured by being circulably connected to (W), and an ice product produced by eliminating the supercooled state of the supercooled regenerator material (W) is stored in the ice storage tank (21). In the ice making device, an inlet (85) into which the cold storage material (W) flows from the ice making circuit (Y) is formed in the ice storage tank (21), and the cold storage material is put in the ice making circuit (Y). An outlet (87) for letting out (W) is formed, while in the ice storage tank (21), it is connected to the inlet (85) and opens in the cold storage material (W) to form a liquid state. An inflow pipe (9) for generating a jet flow forming a storage space (S) of the cold storage material (W)
1) is provided, the ice making device characterized by the above-mentioned.
貯溜するための蓄氷槽（２１）と、熱交換部（８１）と
が蓄冷材（Ｗ）の循環可能に接続されて製氷回路（Ｙ）
が構成され、該熱交換部（８１）で過冷却された蓄冷材
（Ｗ）の過冷却状態を解消して生成した氷化物を上記蓄
氷槽（２１）に貯溜する製氷装置において、 上記熱交換部（８１）は、冷凍回路に接続され、蓄熱運
転時に冷媒との熱交換により蓄冷材（Ｗ）を過冷却する
蒸発器と、蓄熱冷房運転時に冷媒との熱交換により蓄冷
材（Ｗ）の冷熱を回収する凝縮器とに切換可能に構成さ
れ、 上記蓄氷槽（２１）には、上記製氷回路（Ｙ）から蓄冷
材（Ｗ）が流入する流入口（８５）が形成されると共
に、上記製氷回路（Ｙ）に蓄冷材（Ｗ）を流出させる流
出口（８７）が形成される一方、 上記蓄氷槽（２１）内には、上記流入口（８５）に接続
されて蓄冷材（Ｗ）中に開口し、液状の蓄冷材（Ｗ）の
貯溜空間（Ｓ）を形成する噴流を生起する流入管（９
１）が設けられていることを特徴とする製氷装置。2. An ice storage tank (21) for storing a cold storage material (W) iced into a slurry and a heat exchange section (81) are connected so that the cold storage material (W) can circulate. Ice making circuit (Y)
And an ice making device for storing an ice product produced by eliminating a supercooled state of the regenerator material (W) supercooled in the heat exchange section (81) in the ice storage tank (21). The exchange section (81) is connected to the refrigeration circuit, and an evaporator that supercools the cold storage material (W) by heat exchange with the refrigerant during heat storage operation, and a cold storage material (W) by heat exchange with the refrigerant during heat storage cooling operation. It is configured to be switchable to a condenser that recovers the cold heat of the ice storage tank (21), and the ice storage tank (21) is formed with an inlet (85) into which the cold storage material (W) flows from the ice making circuit (Y). An outlet (87) for letting out the cold storage material (W) is formed in the ice making circuit (Y), while the cold storage material connected to the inlet (85) is provided in the ice storage tank (21). Inflow that opens into (W) and creates a jet that forms a storage space (S) for the liquid cold storage material (W) (9
1) is provided, the ice making device characterized by the above-mentioned.
て、流入管（９１）は、開口部（９３）が蓄冷材（Ｗ）
の噴流速度を増加する絞り部（９７）に構成されている
ことを特徴とする製氷装置。3. The ice making device according to claim 1, wherein the inflow pipe (91) has an opening (93) in the cold storage material (W).
The ice-making device characterized in that the ice-making device is constituted by a throttle portion (97) for increasing the jet velocity of the.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4183403A JP2806155B2 (en) | 1992-07-10 | 1992-07-10 | Ice making equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4183403A JP2806155B2 (en) | 1992-07-10 | 1992-07-10 | Ice making equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0626672A true JPH0626672A (en) | 1994-02-04 |
| JP2806155B2 JP2806155B2 (en) | 1998-09-30 |
Family
ID=16135172
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4183403A Expired - Lifetime JP2806155B2 (en) | 1992-07-10 | 1992-07-10 | Ice making equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2806155B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108826547A (en) * | 2018-07-23 | 2018-11-16 | 天津大学建筑设计研究院 | A kind of ice-chilling air conditioning system of supplying cold directly |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61295442A (en) * | 1985-06-21 | 1986-12-26 | Mitsui Eng & Shipbuild Co Ltd | Refrigerant supplier in heat-accumulating type room cooling device |
| JPH043867A (en) * | 1990-04-20 | 1992-01-08 | Daikin Ind Ltd | Ice making device |
| JPH0498095A (en) * | 1990-08-11 | 1992-03-30 | Daikin Ind Ltd | Ice heat accumulating device |
-
1992
- 1992-07-10 JP JP4183403A patent/JP2806155B2/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61295442A (en) * | 1985-06-21 | 1986-12-26 | Mitsui Eng & Shipbuild Co Ltd | Refrigerant supplier in heat-accumulating type room cooling device |
| JPH043867A (en) * | 1990-04-20 | 1992-01-08 | Daikin Ind Ltd | Ice making device |
| JPH0498095A (en) * | 1990-08-11 | 1992-03-30 | Daikin Ind Ltd | Ice heat accumulating device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108826547A (en) * | 2018-07-23 | 2018-11-16 | 天津大学建筑设计研究院 | A kind of ice-chilling air conditioning system of supplying cold directly |
| CN108826547B (en) * | 2018-07-23 | 2023-08-11 | 天津大学建筑设计规划研究总院有限公司 | Direct cooling ice cold-storage air conditioning system |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2806155B2 (en) | 1998-09-30 |
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| Date | Code | Title | Description |
|---|---|---|---|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 19980623 |