JP2508299B2 - Ice heat storage device - Google Patents
Ice heat storage deviceInfo
- Publication number
- JP2508299B2 JP2508299B2 JP1274341A JP27434189A JP2508299B2 JP 2508299 B2 JP2508299 B2 JP 2508299B2 JP 1274341 A JP1274341 A JP 1274341A JP 27434189 A JP27434189 A JP 27434189A JP 2508299 B2 JP2508299 B2 JP 2508299B2
- Authority
- JP
- Japan
- Prior art keywords
- heat storage
- water
- ice
- storage tank
- heat
- 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.)
- Expired - Lifetime
Links
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
Description
【発明の詳細な説明】 〔産業上の利用分野〕 この発明は、空調や冷凍装置に用いられる氷蓄熱装置
の改良に関するものである。TECHNICAL FIELD The present invention relates to an improvement of an ice heat storage device used in an air conditioner or a refrigerating device.
第５図は従来の氷蓄熱装置の構成図であり、（１）は
冷凍サイクルで圧縮機（10）、凝縮器（11）、膨張弁
（12）、冷却器（13）及びこれらを順次連通する冷媒配
管（14）より成つている。（20）は蓄熱槽で、その内部
には水（21）が溜められ、その水中には熱交換管（22）
が浸漬されている。FIG. 5 is a block diagram of a conventional ice heat storage device. (1) is a refrigeration cycle, and a compressor (10), a condenser (11), an expansion valve (12), a cooler (13), and these are sequentially connected. It consists of a refrigerant pipe (14). (20) is a heat storage tank, in which water (21) is stored, and in the water, a heat exchange tube (22)
Is soaked.
熱交換管（22）の一端はヘツダー（23）、他端はヘツ
ダー（24）に連通している。（25）は循環ポンプで、そ
の吐出側は配管（26）にてヘツダー（23）に、また吸引
側は配管（27）にて冷却器（13）に、それぞれ連通して
いる。（28）はヘツダー（24）と冷却器（13）を連通す
る配管であり、これらによつて、ブライン（29）の循環
回路を形成している。（30）は膨張タンクで、配管（3
1）にて、配管（27）と連通している。One end of the heat exchange pipe (22) communicates with the header (23) and the other end communicates with the header (24). (25) is a circulation pump, the discharge side of which communicates with the header (23) through the pipe (26) and the suction side of which communicates with the cooler (13) through the pipe (27). Reference numeral (28) is a pipe that connects the header (24) and the cooler (13), and these form a circulation circuit for the brine (29). (30) is an expansion tank and piping (3
In 1), it communicates with the pipe (27).
（60）は利用側回路で、循環ポンプ（61）の吸入側と
蓄熱槽（20）の下部を連通する配管（62）、室内側熱交
換器（63）と循環ポンプ（61）の吐出側を連通する配管
（64）及び室内側熱交換器（63）と蓄熱槽（20）の上部
とを連通する配管（65）によつて成つている。(60) is a use side circuit, which is a pipe (62) connecting the suction side of the circulation pump (61) and the lower part of the heat storage tank (20), the indoor heat exchanger (63) and the discharge side of the circulation pump (61). And a pipe (65) for communicating the indoor heat exchanger (63) with the upper part of the heat storage tank (20).
次に作用を説明する。圧縮機（10）と循環ポンプ（2
5）が駆動されると、冷却器（13）に於いてブライン（2
9）が冷却され、その温度が低下し、０℃以下、更に
は、−５℃にまで低下する。−５℃位にまで低下する
と、熱交換管（22）の表面に氷が生成され始める。そし
て、この氷の生長と共に、ブライン（29）の温度を更に
下げて、氷蓄熱を行ない、所定の氷の厚さや運転時間に
達すれば圧縮機（10）と循環ポンプ（25）を停止させ
る。Next, the operation will be described. Compressor (10) and circulation pump (2
When 5) is driven, brine (2
9) is cooled, and its temperature is lowered to 0 ° C or lower, and further to −5 ° C. When the temperature is lowered to about -5 ° C, ice starts to be generated on the surface of the heat exchange tube (22). Then, as the ice grows, the temperature of the brine (29) is further lowered to store ice heat, and the compressor (10) and the circulation pump (25) are stopped when a predetermined ice thickness or a predetermined operation time is reached.
尚、この蓄熱（冷）運転は、料金の割安な深夜電力に
よつて行なわれる。Incidentally, this heat storage (cold) operation is performed by late-night electric power whose price is cheap.
昼間の空調時間になると、循環ポンプ（61）が駆動さ
れ、水（21）が室内側熱交換器（63）に供給され室内
（図示せず）を冷房する。室内側熱交換器（63）にて室
内空気と熱交換して温度が上昇した水（21）は蓄熱槽
（20）に戻り、熱交換管（22）の周囲に生成されている
氷を溶かす。このサイクルを繰返すことで蓄熱（冷）を
利用した空調（冷房）が行なわれる。At the daytime air conditioning time, the circulation pump (61) is driven and the water (21) is supplied to the indoor heat exchanger (63) to cool the room (not shown). The water (21) whose temperature has risen by exchanging heat with the indoor air in the indoor heat exchanger (63) returns to the heat storage tank (20) and melts the ice generated around the heat exchange pipe (22). . By repeating this cycle, air conditioning (cooling) using heat storage (cooling) is performed.
従来の氷蓄熱装置は、以上のように構成されているの
で、次の問題があつた。The conventional ice heat storage device has the following problems because it is configured as described above.
熱交換管（22）や膨張タンク（30）が必要であり、
コストが高くなる。Requires heat exchange tubes (22) and expansion tanks (30),
High cost.
熱交換管（22）を介して熱伝達をするので、熱伝達
率が悪い。Since heat is transferred through the heat exchange tube (22), the heat transfer coefficient is poor.
熱交換管（22）の周囲に氷を生成させるので、この
氷の熱伝達を更に阻害する。Since ice is generated around the heat exchange tube (22), the heat transfer of this ice is further hindered.
上記の結果、ブライン（30）の温度を低くする
事が必要になり、その為には冷凍サイクル（１）の蒸発
温度を下げねばならず、冷凍サイクルの効率が低下す
る。As a result of the above, it is necessary to lower the temperature of the brine (30), and for this reason, the evaporation temperature of the refrigeration cycle (1) must be lowered, which lowers the efficiency of the refrigeration cycle.
この発明は、上記のような実情に鑑みなされたもの
で、蓄冷時の効率が良く、構成が簡単で、安価な氷蓄熱
装置を得んとするものである。The present invention has been made in view of the above circumstances, and an object thereof is to obtain an ice heat storage device that has high efficiency during cold storage, has a simple configuration, and is inexpensive.
この発明による装置では、蓄熱材として水、熱交換媒
体として水に不溶解でかつ水と反応せず、比重が水より
小さな有機物質を用い、０℃以下に冷却した該有機物質
を吹出口より水中に吹出すようにしたものである。In the device according to the present invention, water is used as the heat storage material, an organic material that is insoluble in water and does not react with water as the heat exchange medium, and has a specific gravity smaller than that of water is used. It is designed to blow out into the water.
また、蓄熱槽下部に位置し、水相内に設けられた複数
の吹出口と、上部に位置し、有機物質相内に設けられた
複数の吸引口との中間に位置するように金網を設けたも
のである。Further, a wire mesh is provided so as to be located in the lower part of the heat storage tank and in the middle of the plurality of outlets provided in the water phase and the plurality of suction ports provided in the upper part and in the organic substance phase. It is a thing.
さらに、蓄熱剤としての水に、水に溶解し、凍結点が
少なくとも−10℃以下の有機物質を添加したものであ
る。Furthermore, the organic substance having a freezing point of at least −10 ° C. or less dissolved in water is added to water as a heat storage agent.
この発明に於ける氷蓄熱装置では、水と熱交換媒体と
が直接接して氷が生成される。In the ice heat storage device according to the present invention, water is directly contacted with the heat exchange medium to generate ice.
また、蓄熱槽下部に位置する水相内に吹出口、上部に
位置する有機物質相内に吸引口を設け、その中間に位置
するように金網を設けたので、蓄熱剤や氷の小片が混入
して冷却器へ送られるのが防止できる。さらに、水に溶
解し、凍結点が−10℃以下の有機物質を添加したので、
氷が生成された時に、その表面に有機物質の膜が形成さ
れ、氷同志が付着するのを防ぐ、これにより熱交換媒体
の通路が閉塞されない。In addition, since a blowout port was provided in the water phase located in the lower part of the heat storage tank, a suction port was provided in the organic substance phase located in the upper part, and a wire netting was installed in the middle, a heat storage agent and small pieces of ice were mixed. Then, it can be prevented from being sent to the cooler. Furthermore, since it was dissolved in water and an organic substance having a freezing point of -10 ° C or lower was added,
When ice is produced, a film of organic material is formed on the surface of the ice to prevent the ice from adhering to it, thereby not blocking the passage of the heat exchange medium.
以下、この発明の一実施例を図について説明する。第
１図において、（40）は、１％の濃度のポリエチレング
リコールを添加した水、（41）は水に溶解せず、水より
比重が小さく、凝固点が−15℃以下の有機物質、例えば
灯油である。（42）は蓄熱槽（20）の下部に設けられた
吹出し管で、その配置は第３図の如くになつている。第
３図に示す如く、吹出し管（42）は４本で、各々に５個
の吹出し口（42−１）がその上方に開口している。また
（43）はヘツダーである。（44）は吸引管であつて、蓄
熱槽（20）上部の灯油の層に設けられ、その配置は第２
図に示す如くで、各々の吸引管（44）は水平方向に開口
した計10個の吸引口（44−１）を有している。An embodiment of the present invention will be described below with reference to the drawings. In Fig. 1, (40) is water added with polyethylene glycol at a concentration of 1%, (41) is insoluble in water, has a specific gravity smaller than water, and has a freezing point of -15 ° C or lower, for example, kerosene. Is. Reference numeral (42) is a blow-out pipe provided in the lower part of the heat storage tank (20), and the arrangement thereof is as shown in FIG. As shown in FIG. 3, the number of blow-off pipes (42) is four, and five blow-off ports (42-1) are open above each. Also, (43) is a header. Reference numeral (44) is a suction pipe, which is provided in the kerosene layer above the heat storage tank (20), and its arrangement is the second.
As shown in the figure, each suction pipe (44) has a total of 10 suction ports (44-1) opened horizontally.
（45）はヘツダーである。（46）はヘツダー（45）と
冷却器（13）、（47）はヘツダー（43）と循環ポンプ
（25）、（48）は循環ポンプ（25）と冷却器（13）を各
々連通する配管である。（50）はステンレス鋼の線材に
て作られた金網で、水（40）と灯油の境界面位置に張ら
れている。そのメツシユは氷の小片を通さない値、例え
ば20メツシユである。(45) is Hetder. (46) is a pipe that connects the header (45) and the cooler (13), (47) is a header (43) and the circulation pump (25), and (48) is a pipe that connects the circulation pump (25) and the cooler (13). Is. (50) is a wire mesh made of stainless steel wire and stretched at the boundary between water (40) and kerosene. The mesh is a value that does not allow small pieces of ice to pass, for example 20 mesh.
尚、冷凍サイクル（１）は従来の装置と同一である。
また利用側回路（60）も、配管（65）の蓄熱槽（20）へ
の接続位置が従来よりは下方になつている点以外、基本
的には同一である。The refrigeration cycle (1) is the same as the conventional device.
The use side circuit (60) is also basically the same except that the connection position of the pipe (65) to the heat storage tank (20) is lower than in the conventional case.
次いで作用について説明する。深夜電力によつて圧縮
機（10）と循環ポンプ（25）が駆動されると、吸引口
（44−１）から灯油（41）が吸引され、吸引管（44）、
ヘツダー（45）、配管（46）を通つて冷却器（13）に流
入する。ここで冷凍サイクル（１）の作用で冷却された
灯油（41）は配管（48）、循環ポンプ（25）、配管（4
7）、ヘツダー（43）、吹出し管（42）を通り、吹出し
口（42−１）から水（40）の中に吹き出される。この灯
油（41）は水（40）と溶解せず、かつ反応もしない。ま
た比重が水（40）より小さいので、灯油（41）は水（4
0）と熱交換しながら、蓄熱槽（20）の上部へ上昇して
行く。Next, the operation will be described. When the compressor (10) and the circulation pump (25) are driven by the midnight power, the kerosene (41) is sucked from the suction port (44-1), and the suction pipe (44),
It flows into the cooler (13) through the header (45) and the pipe (46). Here, the kerosene (41) cooled by the action of the refrigeration cycle (1) is the pipe (48), the circulation pump (25), and the pipe (4).
7), through the header (43) and the blow-out pipe (42), and blown out into the water (40) from the blow-out port (42-1). This kerosene (41) does not dissolve in water (40) and does not react. Moreover, since the specific gravity is smaller than that of water (40), kerosene (41) is
It goes up to the upper part of the heat storage tank (20) while exchanging heat with 0).
上昇した灯油（41）は再び吸引口（44−１）より吸引
される。この運転の続行にて灯油（41）及び水（40）の
温度が低下し、水（40）の温度が０℃、吹出し口（42−
１）から吹出される灯油の温度が−５℃以下になると、
水（40）の中に小片の氷が生成され始める。生成された
氷は、水（40）の中を上昇し、金網（50）の所まで達
し、ここに溜まる。The rising kerosene (41) is again sucked through the suction port (44-1). By continuing this operation, the temperatures of kerosene (41) and water (40) are lowered, the temperature of water (40) is 0 ° C, and the outlet (42-
When the temperature of kerosene blown out from 1) becomes -5 ° C or lower,
A small piece of ice begins to form in the water (40). The ice produced rises in the water (40), reaches the wire mesh (50), and accumulates there.
更に運転が進むにつれ、氷の量が増し第４図に示す如
く氷による潜熱蓄熱が行なわれる。尚、水（40）の中
に、１％の濃度のポリエチレングリコールが添加されて
いるので、氷の表面は、ポリエチレングリコールの濃度
が高い薄膜で被われ、氷の小片同士が接合しない。従つ
て、氷片が増加しても、その隙間を灯油（40）が流動で
き蓄熱運転が続行できる。As the operation further progresses, the amount of ice increases and latent heat is stored by the ice as shown in FIG. Since 1% of polyethylene glycol is added to the water (40), the surface of ice is covered with a thin film having a high concentration of polyethylene glycol, and the ice pieces do not bond to each other. Therefore, even if the ice pieces increase, the kerosene (40) can flow through the gap and the heat storage operation can be continued.
所定の蓄熱（冷）量に達すれば運転が停止される。そ
して昼間の蓄熱（冷）の利用は、従来と同一である。The operation is stopped when a predetermined amount of heat storage (cold) is reached. The utilization of heat storage (cold) in the daytime is the same as the conventional one.
上記実施例では、水に微量のポリエチレングリコール
を添加したが、氷の生成量が少ない場合や槽が浅く、氷
の層が薄い場合は、添加しなくとも良い。In the above example, a small amount of polyethylene glycol was added to water, but it may be omitted if the amount of ice produced is small, or if the bath is shallow and the ice layer is thin.
また、空調に供する場合について述べたが、冷蔵庫な
どにも適用可能である。Also, although the case of providing air conditioning is described, the present invention can be applied to a refrigerator or the like.
以上の如く、この発明によれば、次の効果が得られ
る。As described above, according to the present invention, the following effects can be obtained.
水に直列有機物質を吹き込んで、氷を生成するように
したので、熱交換器が不要で安価になる。なた熱伝達の
効率が良い。さらに氷の生長に伴う熱伝達率の低下を伴
わないので冷凍サイクルの蒸発温度が高く保たれ蓄熱効
率が良い。Since a series organic substance is blown into water to generate ice, a heat exchanger is unnecessary and the cost is reduced. The heat transfer efficiency is good. Furthermore, since the heat transfer rate does not decrease with the growth of ice, the evaporation temperature of the refrigeration cycle is kept high and the heat storage efficiency is good.
また、蓄熱槽下部に位置し、水相内に設けられた複数
の吹出し口と上部に位置し、有機物質相内に設けられた
複数個の吸引口とを備え、かつこの中間に、生成された
氷の小片を通さない網を設けたので、熱交換媒体に蓄熱
剤や氷の小片が混入して冷却器へ送くられるのが防止さ
れる。Further, it is provided at the lower part of the heat storage tank, has a plurality of outlets provided in the water phase, and has a plurality of inlets provided in the upper part and is provided in the organic substance phase, and is formed in the middle thereof. Since the net that does not pass the small pieces of ice is provided, it is possible to prevent the heat storage medium and the small pieces of ice from being mixed with the heat exchange medium and being sent to the cooler.
また、水に溶解し、凍結点が−10℃以下の有機物質を
添加したので、氷が生成された時に、その表面に有機物
質の膜ができ、氷同志がくつつくのが防止される。この
事により、熱交換媒体の通路が閉塞されない。Further, since an organic substance having a freezing point of −10 ° C. or less which is dissolved in water is added, a film of the organic substance is formed on the surface of the ice when it is formed, which prevents the ice comrades from picking. As a result, the passage of the heat exchange medium is not blocked.
そして、熱交換媒体として水よりも比重の小さなもの
を用いたので、その蓄熱槽からの導出は蓄熱槽の上部に
おいて容易に行うことかできる。また、熱交換媒体を回
収する場合にも、吸引口への異物の混入予防・除去等の
処置を蓄熱槽の上部から容易に行うことができる実用上
の効果がある。Since a heat exchange medium having a smaller specific gravity than water is used, the heat exchange medium can be easily led out from the heat storage tank in the upper part of the heat storage tank. Further, also when collecting the heat exchange medium, there is a practical effect that measures such as prevention / removal of foreign matter from the suction port can be easily performed from the upper part of the heat storage tank.
第１図は、この発明の一実施例による蓄熱空調システム
の構成図、第２図第３図は第１図に示す装置の蓄熱槽の
詳細図、第４図は第１図に示す装置の蓄熱槽での製氷状
況を示す図、第５図は従来の装置の構成図である。これ
らの図において、（１）は冷凍サイクル、（20）は蓄熱
槽、（40）は水、（41）は有機物質、（42−１）は吹出
し口、（44−１）は吸引口、（50）は金網である。1 is a block diagram of a heat storage air conditioning system according to an embodiment of the present invention, FIG. 2 is a detailed view of a heat storage tank of the apparatus shown in FIG. 1, and FIG. 4 is a view of the apparatus shown in FIG. FIG. 5 is a diagram showing a state of ice making in a heat storage tank, and FIG. 5 is a configuration diagram of a conventional device. In these figures, (1) is a refrigeration cycle, (20) is a heat storage tank, (40) is water, (41) is an organic substance, (42-1) is an outlet, (44-1) is an inlet, (50) is a wire mesh.
フロントページの続き (72)発明者 志賀 隆司 和歌山県和歌山市手平６丁目５番66号 三菱電機株式会社和歌山製作所内 (56)参考文献 特開 平３−59335（ＪＰ，Ａ)Front Page Continuation (72) Inventor Takashi Shiga 6-5-6 Tehira, Wakayama City, Wakayama Prefecture Mitsubishi Electric Corporation Wakayama Works (56) Reference JP-A-3-59335 (JP, A)
Claims (3)
水と、この水を冷却し氷を生成させるための熱交換媒体
とを備え、上記熱交換媒体として水に溶解せず、また水
と化学反応せず、水よりも比重の小さな有機物質を用
い、冷凍サイクルにて０℃以下に冷却した上記熱交換媒
体を上記蓄熱剤としての水により蓄熱槽内に形成された
水相内に吹き込むことにより、氷を生成させることを特
徴とする氷蓄熱装置。1. A water storage device, comprising: water contained in a heat storage tank and acting as a heat storage agent; and a heat exchange medium for cooling the water to produce ice, the water being insoluble in water as the heat exchange medium, and water. Using an organic substance that does not chemically react with water and has a specific gravity smaller than that of water, the heat exchange medium cooled to 0 ° C. or less in a refrigeration cycle is placed in a water phase formed in a heat storage tank with water as the heat storage agent. An ice heat storage device characterized by generating ice by being blown thereinto.
の蓄熱槽下部に位置し、蓄熱剤としての水により蓄熱槽
内に形成された水相内に設けられた複数の熱交換媒体吹
出し口、及び蓄熱槽上部に位置し、熱交換媒体としての
有機物質により形成された有機物質相内に設けられた複
数の熱交換媒体の吸引口を備え、かつ、上記吹出し口と
吸引口間の所定位置に金網を設けたことを特徴とする請
求項１記載の氷蓄熱装置。2. A heat storage tank for storing a heat storage agent and an organic substance, and a plurality of heat exchange medium blowouts located in a lower portion of the heat storage tank and provided in a water phase formed in the heat storage tank by water as the heat storage agent. A suction port for a plurality of heat exchange media provided in the organic substance phase formed of an organic substance as a heat exchange medium, which is located at the mouth and the upper part of the heat storage tank, and between the blowout port and the suction port The ice heat storage device according to claim 1, wherein a wire mesh is provided at a predetermined position.
が少なくとも−10℃以下の有機物質を添加したことを特
徴とする請求項１または請求項２記載の氷蓄熱装置。3. The ice heat storage device according to claim 1, wherein an organic substance having a freezing point of at least −10 ° C. or lower is added to water as a heat storage agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1274341A JP2508299B2 (en) | 1989-10-20 | 1989-10-20 | Ice heat storage device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1274341A JP2508299B2 (en) | 1989-10-20 | 1989-10-20 | Ice heat storage device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03137437A JPH03137437A (en) | 1991-06-12 |
| JP2508299B2 true JP2508299B2 (en) | 1996-06-19 |
Family
ID=17540307
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1274341A Expired - Lifetime JP2508299B2 (en) | 1989-10-20 | 1989-10-20 | Ice heat storage device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2508299B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002071248A (en) * | 2000-08-29 | 2002-03-08 | Mayekawa Mfg Co Ltd | Low temperature dynamic ice production method and cold insulation container base and sales system of low temperature dynamic ice |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0359335A (en) * | 1989-07-27 | 1991-03-14 | Ebara Res Co Ltd | Thermal accumulation system |
-
1989
- 1989-10-20 JP JP1274341A patent/JP2508299B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03137437A (en) | 1991-06-12 |
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