JP2001241705A - Method for relieving supercooling and ice plant - Google Patents
Method for relieving supercooling and ice plantInfo
- Publication number
- JP2001241705A JP2001241705A JP2000048618A JP2000048618A JP2001241705A JP 2001241705 A JP2001241705 A JP 2001241705A JP 2000048618 A JP2000048618 A JP 2000048618A JP 2000048618 A JP2000048618 A JP 2000048618A JP 2001241705 A JP2001241705 A JP 2001241705A
- Authority
- JP
- Japan
- Prior art keywords
- container
- water
- supercooled
- release
- ice
- 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
- Production, Working, Storing, Or Distribution Of Ice (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は，水の過冷却状態を
解除する過冷却解除方法，及び当該過冷却解除方法を実
施して，氷を水とのスラリー状態で連続して製造できる
氷製造装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a supercooling release method for releasing a supercooled state of water, and an ice production method capable of continuously producing ice in a slurry state with water by implementing the supercooled release method. It concerns the device.
【０００２】[0002]
【従来の技術】例えば空調システムなどに用いられてい
る氷蓄熱方式では，過冷却器によって水を０℃以下の過
冷却状態にし，水槽内などでこの過冷却状態を解除する
ことによって，水とのスラリー状態にある氷を製造する
ことが行われている。この過冷却状態の解除にあたって
は，過冷却状態の水を大気中に放出して容器の内壁や適
宜の衝突板に衝突させる方法の他に，自由落下距離を節
約するため，特開平８−１１０１３３号公報に開示され
ているように，過冷却水を大気に接触させないように水
平方向に延出した小口径と大口径の管からなる密閉系の
配管中に放出して，管の外周から相を変化させる回転体
や超音波振動子などの相変化誘発装置によって過冷却状
態の水を氷へと相変化させる装置が提案されている。2. Description of the Related Art In an ice heat storage system used in an air conditioning system, for example, water is cooled to 0 ° C. or less by a supercooler, and the supercooled state is released in a water tank or the like, so that water is removed. The production of ice in a slurry state has been performed. When the supercooled state is released, in addition to a method of discharging the supercooled water into the atmosphere and colliding the water with the inner wall of the container or a suitable collision plate, in order to save a free fall distance, Japanese Patent Application Laid-Open No. H8-110133 has been disclosed. As disclosed in Japanese Unexamined Patent Publication, the supercooled water is discharged into a closed system pipe consisting of small-diameter and large-diameter pipes extending horizontally so as not to come into contact with the atmosphere. There has been proposed a device that changes the phase of supercooled water into ice by using a phase change inducing device such as a rotating body or an ultrasonic transducer that changes the temperature.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら，前記装
置は自由落下距離を節約するあまり，今度は水平方向に
長い距離を必要としている。そのため，今度は，水平方
向に距離を長くとれない場所での使用が困難となるおそ
れが生じていた。またさらに密閉系の配管中に放出して
いると，そのままでは小口径と大口径の管の接続部に氷
が付着して閉塞するおそれがあるため，前記装置では，
別途加熱装置によって前記接続部を加熱する必要があっ
た。However, the device saves the free fall distance, but now requires a long horizontal distance. For this reason, there has been a risk that it will be difficult to use the device in a place where the distance in the horizontal direction cannot be increased. Further, if the gas is discharged into a closed system pipe, ice may adhere to the connection between the small-diameter pipe and the large-diameter pipe and may become blocked.
It was necessary to separately heat the connection section by a heating device.
【０００４】本発明は，かかる点に鑑みてなされたもの
であり，垂直方向のみならず水平方向にもコンパクト化
が図れる過冷却解除方法及び，当該方法を好適に実施で
きる氷製造装置を提供することをその目的としている。
また本発明は，さらに密閉系の中に過冷却水を放出して
も，加熱装置による加熱を施すことなく氷による閉塞を
防止することも目的としている。The present invention has been made in view of the above points, and provides a supercooling canceling method capable of achieving compactness not only in the vertical direction but also in the horizontal direction, and an ice manufacturing apparatus capable of suitably implementing the method. That is the purpose.
Another object of the present invention is to prevent clogging with ice without heating by a heating device even if supercooled water is discharged into a closed system.
【０００５】[0005]
【課題を解決するための手段】前記目的を達成するた
め，請求項１によれば，過冷却器から吐出される水の過
冷却状態を解除する方法として，吐出された過冷却状態
の水を大気に接触させることなく容器内に流入させる工
程と，流入した水の流れを前記容器内で螺旋状の回転運
動に変えて容器の出口に導く工程と，前記容器内の水に
対して超音波を付与する工程とを有することを特徴とす
る，過冷却状態の解除方法が提供される。なお螺旋状の
回転運動に変える工程と，超音波付与の工程は，必ずし
も前記記載順に行わなければならない性質のものではな
く，流入した水の流れを螺旋状の回転運動に変えること
と，流入した水に対して超音波を付与することとを備え
ていればよい。According to the first aspect of the present invention, there is provided a method for canceling a supercooled state of water discharged from a subcooler, which comprises discharging discharged supercooled water. A step of flowing the water into the container without contacting the atmosphere, a step of converting the flow of the flowing water into a helical rotary motion in the container and guiding the flow to the outlet of the container, and an ultrasonic wave for the water in the container. And a method of releasing a supercooled state. Note that the step of changing into a spiral rotational movement and the step of applying ultrasonic waves are not necessarily of the nature described in the order described above. What is necessary is just to provide to apply ultrasonic waves to water.
【０００６】請求項１の解除方法によれば，容器内に流
入させた過冷却状態の水を容器内で螺旋状の回転運動に
変えて容器の出口に導くようにしたので，容器内のスペ
ースを有効に使用しつつ，超音波によって過冷却状態の
解除を誘発することができる。したがって，容器につい
ては水平方向，垂直方向とも従来よりもコンパクト化す
ることが可能である。According to the first aspect of the present invention, the supercooled water flowing into the container is changed into a spiral rotational motion in the container and guided to the outlet of the container. The supercooled state can be released by the ultrasonic wave while effectively using. Therefore, the container can be made more compact both horizontally and vertically than before.
【０００７】この場合，請求項２のように，超音波振動
子によって前記超音波を付与することとし，さらにこの
超音波振動子の超音波出力密度（出力を超音波振動子の
断面積で除した値）を調整すると共に，さらにまた容器
内に流入した過冷却状態の水が，少なくとも４．１秒以
上容器内にとどまるように，水の流速や容器の大きさを
設定すれば，発明者らの知見によると，容器に対して付
与される超音波と，水流の面速度に比べて大きな周速度
に起因する動圧によって，容器内に付着した氷は連続的
に除去される。したがって，氷の付着による閉塞を防止
して，連続運転時間を伸ばすことが可能である。In this case, the ultrasonic wave is applied by an ultrasonic vibrator, and the ultrasonic output density of the ultrasonic vibrator (the output is divided by the cross-sectional area of the ultrasonic vibrator). If the flow rate of water and the size of the container are set so that the supercooled water flowing into the container remains in the container for at least 4.1 seconds or more, the inventors of the present invention can adjust the flow rate. According to these findings, the ice adhered to the container is continuously removed by the ultrasonic wave applied to the container and the dynamic pressure caused by the peripheral velocity greater than the surface velocity of the water flow. Therefore, the continuous operation time can be extended by preventing the blockage due to the adhesion of ice.
【０００８】請求項３によれば，過冷却状態の水を吐出
口から吐出する過冷却器と，この過冷却器に気密に接続
された略円筒形の密閉形の過冷却解除容器とを有する氷
の製造装置であって，前記過冷却解除容器の上部には，
前記吐出口からの過冷却状態の水を導入する入口部が設
けられ，前記過冷却解除容器の下部には過冷却解除容器
内の水等を外部に排出する出口部が設けられ，前記入口
部は前記吐出口から吐出される過冷却状態の水を，過冷
却解除容器の周面の接線方向に沿って導入する位置に設
定され，前記出口部は過冷却解除容器からの氷・水スラ
リーを過冷却解除容器の周面の接線方向に沿って外部に
排出する位置に設定され，さらに過冷却解除容器は過冷
却解除容器内の水の過冷却状態の解除を誘発する，解除
誘発装置を備えてなることを特徴とする，氷製造装置が
提供される。According to the third aspect of the present invention, there is provided a subcooler for discharging supercooled water from a discharge port, and a substantially cylindrical closed-type supercooling release container airtightly connected to the supercooler. An apparatus for producing ice, wherein an upper part of the supercooling release container is
An inlet portion for introducing supercooled water from the discharge port is provided, and an outlet portion for discharging water or the like in the subcooling release container to the outside is provided at a lower portion of the subcooling release container. Is set at a position where the supercooled water discharged from the discharge port is introduced along the tangential direction of the peripheral surface of the subcooling release container, and the outlet portion is provided with ice / water slurry from the subcooling release container. The supercooling release container is set at a position where it is discharged to the outside along the tangential direction of the peripheral surface of the supercooling release container, and the supercooling release container has a release inducing device for inducing the release of the supercooled state of the water in the supercooling release container An ice manufacturing apparatus is provided.
【０００９】ここで前記入口部の位置，すなわち過冷却
器の吐出口から吐出される過冷却状態の水を，過冷却解
除容器の周面の接線方向に沿って導入する位置とは，例
えば前記吐出口の軸方向と直角に対面し（すなわち吐出
口の中心軸と入口部の中心軸とを一致させ），かつ過冷
却解除容器の周面の接線方向に接続される位置（すなわ
ち入口部の中心軸が過冷却解除容器の周面の接線と平行
となる位置）が挙げられる。Here, the position of the inlet, that is, the position at which the supercooled water discharged from the discharge port of the subcooler is introduced along the tangential direction of the peripheral surface of the subcooling release container is, for example, as described above. A position facing the discharge port at right angles to the axial direction (that is, the central axis of the discharge port coincides with the central axis of the inlet) and connected to the tangential direction of the peripheral surface of the supercooled release container (ie, the position of the inlet). Position where the central axis is parallel to the tangent to the peripheral surface of the supercooled release container).
【００１０】この氷製造装置によれば，過冷却解除容器
の上部の入口部から導入された過冷却状態の水は，旋回
流となって容器下部の出口部から排出される。すなわち
過冷却解除容器の入口部は前記吐出口から吐出される過
冷却状態の水を，過冷却解除容器の周面の接線方向に沿
って導入する位置に設定されているから，過冷却解除容
器内に流入した水は，流入直後には長手方向の速度成分
を持たない。そして出口部も過冷却解除容器からの氷・
水スラリーを過冷却解除容器の接線方向に沿って外部に
排出する位置に設定されているから，過冷却解除容器に
流入した水は旋回流となって一様に一定の時間，過冷却
解除容器内に滞留した後，出口部から排出される。According to this ice manufacturing apparatus, the supercooled water introduced from the upper inlet of the supercooled release container is discharged from the lower outlet of the container as a swirling flow. That is, the inlet portion of the supercooled release container is set at a position where the supercooled water discharged from the discharge port is introduced along the tangential direction of the peripheral surface of the supercooled release container. The water that has flowed in has no longitudinal velocity component immediately after it has flowed. And the outlet is also ice
Since the water slurry is set at the position where it is discharged to the outside along the tangential direction of the subcooling release container, the water that has flowed into the subcooling release container turns into a swirling flow and uniformly for a certain period of time. After staying inside, it is discharged from the outlet.
【００１１】そして過冷却解除容器には，過冷却解除誘
発装置が設けられているので，過冷却状態の水は，過冷
却解除容器内にあるときにその過冷却状態が解除され
て，氷が生成される。また前記したように，過冷却解除
容器内では，一様に一定時間滞留するので，滞留時間の
短い流れの成分は発生せず，その事に起因する過冷却の
解除が不完全な状態で，過冷却水が容器外に排出される
ことはない。従って，連続かつ安定して水とのスラリー
状態にある氷，つまり氷・水スラリーを製造することが
可能となり，請求項１，２の発明を好適に実施すること
ができる。Since the supercooling release container is provided with the supercooling release inducing device, the supercooled water is released from the supercooled state when it is in the supercooling release container, and the ice is removed. Generated. In addition, as described above, since the gas stays uniformly for a certain period of time in the supercooling release container, a component of the flow having a short residence time does not occur. The supercooled water is not discharged out of the container. Therefore, it is possible to continuously and stably produce ice in a slurry state with water, that is, ice-water slurry, and the inventions of claims 1 and 2 can be suitably implemented.
【００１２】解除誘発装置としては，請求項４に記載し
たように，過冷却解除容器内の水に対して超音波を付与
する超音波振動子が適している。これによって容器内壁
に付着しようとする氷を適切に除去することが可能であ
る。また本発明はいわゆる密閉系内にて，過冷却状態を
解除する方式を採っているので，過冷却解除容器自体の
設計にとっても有利である。As the release inducing device, an ultrasonic vibrator for applying an ultrasonic wave to water in the subcooling release container is suitable. This makes it possible to appropriately remove the ice that is going to adhere to the inner wall of the container. Further, since the present invention employs a system for releasing the supercooled state in a so-called closed system, it is advantageous for the design of the supercooled release container itself.
【００１３】またこの超音波振動子は，請求項５に記載
したように，前記過冷却解除容器の周面に取り付けられ
ていることが好ましい。これによって容器内の水に対し
て均一に超音波を付与することができる。It is preferable that the ultrasonic vibrator is attached to a peripheral surface of the subcooling release container. Thereby, ultrasonic waves can be uniformly applied to the water in the container.
【００１４】過冷却解除容器は，請求項６に記載したよ
うに，略円筒形のものに代えて，六角形以上の多角形の
略筒形であってもよい。なお本発明においては，いわゆ
る密閉系内で過冷却状態を解除する方式であるから，過
冷却解除容器の上下面は，閉鎖されている形態である。The supercooling release container may be a polygonal cylinder having a hexagonal shape or more, instead of having a substantially cylindrical shape. In the present invention, since the supercooled state is released in a so-called closed system, the upper and lower surfaces of the supercooled release container are closed.
【００１５】[0015]
【発明の実施の形態】以下，本発明の好ましい実施の形
態について説明すると，図１は，本実施の形態にかかる
氷製造装置１を用いた実験的な氷蓄熱システムの系統の
概略を示しており，この氷製造装置１は，過冷却水を製
造する過冷却器２と過冷却器２から供給された過冷却水
を解除して氷・水スラリーを製造する過冷却解除容器３
とを有している。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a preferred embodiment of the present invention will be described. FIG. 1 schematically shows a system of an experimental ice heat storage system using an ice producing apparatus 1 according to the present embodiment. The ice producing apparatus 1 comprises a supercooler 2 for producing supercooled water and a supercooled release container 3 for releasing supercooled water supplied from the supercooler 2 to produce ice / water slurry.
And
【００１６】過冷却器２は，いわゆるシェル・アンド・
チューブ構造を有しており，冷凍機４からブラインポン
プ５によって供給されるブラインによって，過冷却器２
に供給された水を，過冷度２．０Ｋ以下の過冷却状態に
して，吐出口２ａから吐出する構造を有している。なお
吐出口２ａは，過冷却解除容器３に向けて絞った形状と
しているが，その理由は円筒（角筒）状の容器に沿って
過冷却水（または氷・水スラリー）が流れるための流速
を確保するためである。そして過冷却解除容器３によっ
て過冷却状態が解除され，製造された氷・水スラリー
は，管路６を通じて。氷蓄熱槽７へと移送される。The supercooler 2 is a so-called shell and
The subcooler 2 has a tube structure and is supplied with brine from a refrigerator 4 by a brine pump 5.
Is supercooled to a degree of supercooling of 2.0 K or less, and is discharged from the discharge port 2a. The discharge port 2a has a shape narrowed toward the subcooling release container 3 because of the flow rate of supercooled water (or ice / water slurry) flowing along the cylindrical (square tube) container. This is to ensure. Then, the supercooled state is released by the supercooled release container 3, and the produced ice / water slurry passes through the pipe 6. It is transferred to the ice thermal storage tank 7.
【００１７】氷蓄熱槽７内の下部には，取水管８の取水
口８ａが位置しており，ポンプ９によって取水された氷
蓄熱槽７内の水は，一旦予熱用熱交換器１１へと移送さ
れ，そこで予熱用水蓄熱槽１２からの水と熱交換され，
例えば０．５℃まで加熱された後，管路１３を通じて過
冷却器２へと送られるようになっている。この予熱用熱
交換器１１及び予熱用水蓄熱槽１２の設置は，任意であ
る。An intake port 8a of an intake pipe 8 is located at a lower portion in the ice heat storage tank 7, and water in the ice heat storage tank 7 taken by the pump 9 is temporarily transferred to the heat exchanger 11 for preheating. Is transferred, where it is exchanged with water from the preheated water heat storage tank 12,
After being heated to, for example, 0.5 ° C., it is sent to the supercooler 2 through the pipe 13. The installation of the preheating heat exchanger 11 and the preheating water heat storage tank 12 is optional.
【００１８】次に過冷却解除容器３の詳細について説明
する。この過冷却解除容器３は，図２，図３にも示した
ように，全体として略八角形の筒状の形態を有し，上面
３ａ，底面３ｂとも閉口している密閉容器である。Next, the details of the subcooling release container 3 will be described. As shown in FIGS. 2 and 3, the subcooling release container 3 has a substantially octagonal cylindrical shape as a whole, and is a closed container in which both the upper surface 3a and the bottom surface 3b are closed.
【００１９】過冷却解除容器３の側面における上面３ａ
近傍には，入口部２１が設けられている。この入口部２
１は，管体２２によって形成され，管体２２の先端に
は，過冷却器２と接続するためのフランジ２３が設けら
れている。このフランジ２３を介して，過冷却器２の吐
出口２ａと入口部２１は水密に接続されている。The upper surface 3a on the side surface of the subcooling release container 3.
An entrance 21 is provided in the vicinity. This entrance 2
1 is formed by a pipe 22, and a flange 23 for connecting to the subcooler 2 is provided at the tip of the pipe 22. Through the flange 23, the discharge port 2a of the subcooler 2 and the inlet 21 are connected in a watertight manner.
【００２０】入口部２１の位置の設定は次のようになっ
ている。すなわち図４にも示したように，吐出口２ａの
軸心Ａと入口部２１の軸心Ｂとが一致し（吐出口２ａの
軸心Ａに対して入口部２１の面が直角に対面し），かつ
入口部２１が過冷却解除容器３の周面の接線Ｃの方向に
位置する（入口部２１の軸心Ｂと接線Ｃとが平行にな
る）ように設定されている。The setting of the position of the entrance 21 is as follows. That is, as shown in FIG. 4, the axis A of the discharge port 2a coincides with the axis B of the inlet 21 (the surface of the inlet 21 faces the axis A of the discharge port 2a at right angles. ), And the inlet 21 is set in the direction of the tangent C on the peripheral surface of the subcooling release container 3 (the axis B of the inlet 21 and the tangent C are parallel).
【００２１】他方，過冷却解除容器３の側面における底
面３ｂ近傍には，出口部３１が設けられている。この出
口部３１は，管体３２によって形成され，管体３２の先
端には，他の管体と接続するためのフランジ３３が設け
られている。そしてこの出口部３１の位置の設定は次の
ようになっている。すなわち図５に示したように，出口
部３１が過冷却解除容器３の接線Ｅの方向に位置する
（出口部２１の軸心Ｄと接線Ｅとが平行になる）ように
設定されている。On the other hand, an outlet 31 is provided near the bottom surface 3b on the side surface of the subcooling release container 3. The outlet portion 31 is formed by a tube 32, and a flange 33 for connecting to another tube is provided at the tip of the tube 32. The setting of the position of the outlet 31 is as follows. That is, as shown in FIG. 5, the outlet portion 31 is set so as to be located in the direction of the tangent line E of the supercooling release container 3 (the axis D of the outlet portion 21 is parallel to the tangent line E).
【００２２】以上の構成により，例えば４ｍ／ｓの流速
で過冷却解除容器３内に流入した過冷却水の流れを回転
運動に変えることができ，また過冷却解除器３の長手方
向の面速を０．１１ｍ／ｓで一様にすることができる。With the above configuration, for example, the flow of the supercooled water flowing into the subcooling release vessel 3 at a flow rate of 4 m / s can be changed into a rotational motion, and the surface velocity of the subcooling releaser 3 in the longitudinal direction can be changed. Can be made uniform at 0.11 m / s.
【００２３】過冷却解除容器３の側面を構成する側板の
うち，隣り合う２枚の側板３ｃ，３ｄと，３ｅ，３ｆの
各表面には，超音波振動子４１が複数設けられている。
この超音波振動子４１は，４５ｋＨｚの超音波を過冷却
解除容器３内に付与することが可能に構成されており，
また個別にその出力を変化させることが可能である。す
なわち定格は１００Ｗで０〜１２５％までその出力を変
化させることが可能である。A plurality of ultrasonic transducers 41 are provided on the surfaces of two adjacent side plates 3c and 3d and 3e and 3f among the side plates constituting the side surface of the subcooling release container 3.
The ultrasonic vibrator 41 is configured to be capable of applying ultrasonic waves of 45 kHz into the subcooling release container 3.
It is also possible to change the output individually. That is, the output can be changed from 0 to 125% at a rating of 100 W.
【００２４】本実施の形態にかかる氷製造装置１は，以
上のように構成されており，超音波振動子４１を作動さ
せて，過冷却器２から過冷却水を過冷却解除容器３の入
口部２１に流入させると，流入した過冷却水は，螺旋状
に旋回しながら過冷却解除容器３の内部で前記超音波に
よって過冷却状態が解除され，水とのスラリー状態の氷
が生成される。すなわち，氷・水スラリーが生成され
る。そしてこの氷・水スラリーが出口部３１から外部に
排出される。The ice making apparatus 1 according to the present embodiment is configured as described above, and operates the ultrasonic vibrator 41 to supply supercooled water from the subcooler 2 to the inlet of the subcooled release container 3. When the supercooled water flows into the section 21, the supercooled water is released from the supercooled state by the ultrasonic wave inside the supercooled release container 3 while spirally turning, and ice in a slurry state with water is generated. . That is, an ice-water slurry is generated. Then, the ice / water slurry is discharged from the outlet 31 to the outside.
【００２５】このように過冷却状態が解除される過冷却
水は，螺旋状に流れる過程で過冷却状態が解除されるの
で，過冷却解除容器３の大きさを，垂直方向，水平方向
とも従来よりコンパクトに構成することが可能である。
しかも，後述のように，超音波振動時の出力と，過冷却
解除容器３内に滞留する時間を適宜調整することによ
り，過冷却解除容器３の内壁に付着する氷を，超音波に
より砕いてこれを剥離することができるので，氷によっ
て過冷却解除容器３が閉塞することはなく，従来のよう
に別途氷剥離用の加熱装置を設ける必要がない。Since the supercooled water whose supercooled state is released in this way is released in a spiral process, the size of the supercooled release container 3 is reduced in both the vertical and horizontal directions. It is possible to make it more compact.
In addition, as described later, the ice adhering to the inner wall of the subcooling release container 3 is crushed by ultrasonic waves by appropriately adjusting the output during ultrasonic vibration and the time of staying in the subcooling release container 3. Since this can be peeled off, the subcooling release container 3 will not be blocked by ice, and there is no need to provide a separate heating device for ice peeling as in the conventional case.
【００２６】次に基本構成が前記過冷却解除容器３と同
一で，サイズを次のように設定した過冷却解除容器を用
いて氷・水スラリーの生成実験を行った結果について説
明する。すなわち，本実験で使用した過冷却解除容器
は，内径３００ｍｍ，垂直方向の長さが１０００ｍｍで
あり，入口部２１の内径は５０ｍｍである。そして過冷
却解除容器の側板のうち，超音波振動子４１が設けられ
る側板３ｃ〜３ｆ以外の側板を観測に便利な透明なアク
リル樹脂板を使用した。Next, a description will be given of the results of an experiment of generating an ice / water slurry using a subcooling release container having the same basic configuration as the above-mentioned subcooling release container 3 and having the following sizes. That is, the supercooling release container used in this experiment has an inner diameter of 300 mm, a vertical length of 1000 mm, and an inner diameter of the inlet 21 of 50 mm. A transparent acrylic resin plate, which is convenient for observing the side plates other than the side plates 3c to 3f on which the ultrasonic oscillator 41 is provided, among the side plates of the subcooling release container was used.
【００２７】また過冷却水の過冷度は１．４Ｋ，過冷却
解除容器に流入する過冷却水の流入速度を４ｍ／ｓ，過
冷却解除容器長手方向の面速を０．１１ｍ／ｓとして，
超音波出力密度（出力を超音波振動子の断面積で除した
値［ｋＷ／ｍ２］）と過冷却解除容器内での超音波照射
時間［ｓｅｃ］（すなわち，過冷却解除容器内での滞留
時間）とを適宜変更して，両者の関係を調べた結果を図
６に示した。同図中，○は３６０［ｍｉｎ］以上連続運
転ができたときの条件を示し，△は過冷却解除容器の内
壁表面に付着した氷が間欠的に剥離して閉塞に至ったも
のの，１８０［ｍｉｎ］以上連続運転ができたときの条
件を示し，×は過冷却解除容器が氷によって閉塞したた
めに装置が停止した条件を示している。The degree of supercooling of the supercooled water is 1.4K, the inflow velocity of the supercooled water flowing into the supercooled release vessel is 4 m / s, and the surface velocity in the longitudinal direction of the supercooled release vessel is 0.11 m / s. ,
The ultrasonic output density (the value obtained by dividing the output by the cross-sectional area of the ultrasonic transducer [kW / m 2 ]) and the ultrasonic irradiation time [sec] in the supercooled release container (that is, in the supercooled release container) (Residence time) was appropriately changed, and the result of examining the relationship between them was shown in FIG. In the figure, ○ indicates conditions under which continuous operation could be performed for 360 [min] or more, and △ indicates 180 [deg.] Although ice adhering to the inner wall surface of the subcooling release container intermittently peeled off and closed. min] or more when continuous operation was possible, and x indicates a condition where the apparatus was stopped because the subcooling release container was blocked by ice.
【００２８】この結果からわかるように，超音波振動子
４１の超音波出力密度が３１．４［ｋＷ／ｍ２］以上，
照射時間が４．１［ｓｅｃ］の条件を境に，連続運転時
間が大幅に伸び，過冷却解除容器が氷によって閉塞する
ことなく，６時間以上の連続運転が可能になっている。As can be seen from the result, the ultrasonic output density of the ultrasonic transducer 41 is 31.4 [kW / m 2 ] or more.
The continuous operation time is greatly extended under the condition of the irradiation time of 4.1 [sec], and the continuous operation for 6 hours or more is possible without the supercooled release container being closed by ice.
【００２９】以上説明したように，本発明によれば，過
冷却解除容器の大きさを垂直方向，水平方向とも従来よ
りコンパクトにすることが可能である。しかも超音波振
動子の出力密度と過冷却解除容器内での滞留時間を適宜
調整して設定することにより，氷による解除容器の閉塞
を防止して，氷・水スラリーの連続製造時間を伸ばすこ
とが可能である。As described above, according to the present invention, the size of the subcooling release container can be made more compact both in the vertical direction and in the horizontal direction. In addition, by appropriately adjusting and setting the output density of the ultrasonic vibrator and the residence time in the supercooling release container, it is possible to prevent the release container from being clogged by ice and to extend the continuous production time of the ice / water slurry. Is possible.
【００３０】[0030]
【発明の効果】本発明によれば，密閉系内で過冷却状態
を解除するにあたり，過冷却解除用の容器を水平方向，
垂直方向とも従来よりコンパクトにすることが可能であ
る。また格別加熱装置を設けなくとも，氷による容器の
閉塞を防止することができる。特に請求項３の氷製造装
置によれば，あらためてプロペラのような駆動機器を設
けることなく，過冷却解除容器内に流入した水を旋回流
にすることができる。また請求項４の氷製造装置によれ
ば，容器内壁に付着しようとする氷を適切に除去するこ
とが可能である。さらに請求項５の氷製造装置によれ
ば，容器内の水に対して均一に超音波を付与して過冷却
状態を解除することができるから，効率よくかつ均一に
水とのスラリー状態にある氷を連続して製造することが
可能である。According to the present invention, when the supercooled state is released in the closed system, the container for releasing the supercooled state is placed in the horizontal direction.
It can be made more compact in the vertical direction than before. Further, even if no special heating device is provided, it is possible to prevent the container from being clogged by ice. In particular, according to the ice manufacturing apparatus of the third aspect, the water flowing into the subcooling release container can be turned into a swirling flow without providing a driving device such as a propeller again. According to the ice manufacturing apparatus of the fourth aspect, it is possible to appropriately remove ice that is to adhere to the inner wall of the container. According to the fifth aspect of the present invention, since the supercooled state can be released by uniformly applying ultrasonic waves to the water in the container, the water is efficiently and uniformly in a slurry state with water. It is possible to produce ice continuously.
【図１】本発明の実施の形態にかかる氷製造装置を使用
した氷蓄熱システムの構成の概略を示す説明図である。FIG. 1 is an explanatory diagram showing an outline of a configuration of an ice heat storage system using an ice manufacturing device according to an embodiment of the present invention.
【図２】図１の氷製造装置に使用した過冷却解除容器の
側面図である。FIG. 2 is a side view of a subcooling release container used in the ice producing apparatus of FIG.
【図３】図２の過冷却解除容器の平面の一部断面説明図
である。FIG. 3 is a partially sectional explanatory view of a plane of the subcooling release container of FIG. 2;
【図４】図２の過冷却解除容器の入口部の設定状況を示
す説明図である。FIG. 4 is an explanatory diagram showing a setting state of an inlet portion of the subcooling release container of FIG. 2;
【図５】図２の過冷却解除容器の出口部の設定状況を示
す説明図である。FIG. 5 is an explanatory view showing a setting state of an outlet of the supercooling release container of FIG. 2;
【図６】基本構成が図２に示した過冷却解除容器と同一
の過冷却解除容器を用いて実験した超音波照射条件と連
続運転時間との関係を示す説明図である。FIG. 6 is an explanatory diagram showing a relationship between ultrasonic irradiation conditions and a continuous operation time, which was tested using the same supercooling release container as that shown in FIG.
１ 氷製造装置 ２ 過冷却器 ２ａ 吐出口 ３ 過冷却解除容器 ２１ 入口部 ３１ 出口部 ４１ 超音波振動子 DESCRIPTION OF SYMBOLS 1 Ice manufacturing apparatus 2 Subcooler 2a Discharge port 3 Subcooling release container 21 Inlet part 31 Outlet part 41 Ultrasonic vibrator
フロントページの続き (72)発明者 谷野 正幸 神奈川県相模原市富士見６−３−３−210 (72)発明者 小澤 由行 神奈川県横浜市都築区すみれが丘６−２ (72)発明者 稲田 孝明 茨城県つくば市並木１丁目２番地 工業技 術院機械技術研究所内Continued on the front page (72) Inventor Masayuki Tanino 6-3--3-210 Fujimi, Sagamihara City, Kanagawa Prefecture (72) Inventor Yoshiyuki Ozawa 6-2 Sumiregaoka, Tsuzuki-ku, Yokohama, Kanagawa Prefecture (72) Inventor Takaaki Inada Ibaraki Prefecture 1-2-2 Namiki, Tsukuba
Claims (6)
を解除する方法であって，吐出された過冷却状態の水を
大気に接触させることなく容器内に流入させる工程と流
入した水の流れを前記容器内で螺旋状の回転運動に変え
て，容器の出口に導く工程と，前記容器内の水に対して
超音波を付与する工程と，を有することを特徴とする，
過冷却状態の解除方法。1. A method for releasing a supercooled state of water discharged from a supercooler, comprising: a step of flowing discharged supercooled water into a container without contacting the air; Converting the flow of water into a spiral rotational motion in the container and guiding the flow to the outlet of the container; and applying ultrasonic waves to water in the container.
How to release the supercooled state.
与され，この超音波振動子の超音波出力密度を３１．４
［ｋＷ／ｍ２］以上に設定するとともに，容器内に流入
した過冷却状態の水が少なくとも４．１秒以上容器内に
とどまるように，少なくとも水の流速又は容器の大きさ
を設定することを特徴とする，請求項１に記載の過冷却
状態の解除方法。2. The ultrasonic wave is applied by an ultrasonic oscillator, and the ultrasonic output density of the ultrasonic oscillator is 31.4.
[KW / m 2 ] or more, and at least the flow rate of the water or the size of the container so that the supercooled water flowing into the container stays in the container for at least 4.1 seconds. The method for releasing a supercooled state according to claim 1, characterized in that:
冷却器と，この過冷却器に気密に接続された略円筒形の
密閉形の過冷却解除容器とを有する氷の製造装置であっ
て，前記過冷却解除容器の上部には，前記吐出口からの
過冷却状態の水を導入する入口部が設けられ，前記過冷
却解除容器の下部には過冷却解除容器内の水等を外部に
排出する出口部が設けられ，前記入口部は前記吐出口か
ら吐出される過冷却状態の水を，過冷却解除装置の周面
の接線方向に沿って導入する位置に設定され，前記出口
部は過冷却解除容器からの氷・水スラリーを過冷却解除
容器の周面の接線方向に沿って外部に排出する位置に設
定され，さらに過冷却解除容器は過冷却解除容器内の水
の過冷却状態の解除を誘発する，解除誘発装置を備えて
なることを特徴とする，氷製造装置。3. An ice manufacturing apparatus comprising: a supercooler for discharging supercooled water from a discharge port; and a substantially cylindrical closed-type supercooling release container airtightly connected to the supercooler. In addition, an inlet portion for introducing supercooled water from the discharge port is provided at an upper portion of the subcooling release container, and water or the like in the subcooling release container is provided at a lower portion of the subcooling release container. An outlet part for discharging the water to the outside is provided, and the inlet part is set at a position for introducing supercooled water discharged from the discharge port along a tangential direction of a peripheral surface of the subcooling release device; Is set at a position where the ice / water slurry from the subcooling release container is discharged to the outside along the tangential direction of the peripheral surface of the subcooling release container. It is provided with a release inducing device for inducing the release of the cooling state. Ice production equipment.
の水に対して超音波を付与する超音波振動子であること
を特徴とする，請求項３に記載の氷製造装置。4. The ice making apparatus according to claim 3, wherein the release inducing device is an ultrasonic vibrator for applying ultrasonic waves to water in the subcooling release container.
器の周面に取り付けられていることを特徴とする，請求
項４に記載の氷製造装置。5. The apparatus according to claim 4, wherein the ultrasonic vibrator is mounted on a peripheral surface of the subcooling release container.
角形の略筒形であることを特徴とする，請求項３，４又
は５に記載の氷製造装置。6. The ice manufacturing apparatus according to claim 3, wherein the subcooling release container has a substantially cylindrical shape having a polygonal shape of a hexagon or more.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000048618A JP3855068B2 (en) | 2000-02-25 | 2000-02-25 | How to cancel overcooling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000048618A JP3855068B2 (en) | 2000-02-25 | 2000-02-25 | How to cancel overcooling |
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| Publication Number | Publication Date |
|---|---|
| JP2001241705A true JP2001241705A (en) | 2001-09-07 |
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| JP3855068B2 JP3855068B2 (en) | 2006-12-06 |
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ID=18570681
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008075900A (en) * | 2006-09-19 | 2008-04-03 | Ihi Corp | Propagation preventing method against ice attached to wall surface |
| CN102589219A (en) * | 2012-01-21 | 2012-07-18 | 江卫红 | Ultrasonic subcooling eliminating device |
| JP2014119210A (en) * | 2012-12-18 | 2014-06-30 | Takasago Thermal Eng Co Ltd | Supercooling release device and ice maker |
| JP2017036912A (en) * | 2016-10-24 | 2017-02-16 | 高砂熱学工業株式会社 | Ice making device and ice making method |
-
2000
- 2000-02-25 JP JP2000048618A patent/JP3855068B2/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008075900A (en) * | 2006-09-19 | 2008-04-03 | Ihi Corp | Propagation preventing method against ice attached to wall surface |
| CN102589219A (en) * | 2012-01-21 | 2012-07-18 | 江卫红 | Ultrasonic subcooling eliminating device |
| JP2014119210A (en) * | 2012-12-18 | 2014-06-30 | Takasago Thermal Eng Co Ltd | Supercooling release device and ice maker |
| JP2017036912A (en) * | 2016-10-24 | 2017-02-16 | 高砂熱学工業株式会社 | Ice making device and ice making method |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3855068B2 (en) | 2006-12-06 |
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| EXPY | Cancellation because of completion of term |