JPH1114209A - Ice slurry production equipment - Google Patents
Ice slurry production equipmentInfo
- Publication number
- JPH1114209A JPH1114209A JP16678797A JP16678797A JPH1114209A JP H1114209 A JPH1114209 A JP H1114209A JP 16678797 A JP16678797 A JP 16678797A JP 16678797 A JP16678797 A JP 16678797A JP H1114209 A JPH1114209 A JP H1114209A
- Authority
- JP
- Japan
- Prior art keywords
- ice
- heat transfer
- transfer tube
- brine
- making
- 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
(57)【要約】
【課題】均質な氷スラリーを効率的に製造することがで
きる冷媒散布式の氷スラリー製造設備を提供すること。
【解決手段】製氷器２の本体６内に配置した多数の伝熱
管９内に製氷用ブラインＢを通す一方、伝熱管群９０の
上方から冷媒液Ｌａを噴霧して各伝熱管９の外壁面に液
膜を生成し、各伝熱管９内の製氷用ブラインＢの温度が
安定製氷可能で、かつ、管内閉塞を起こさない温度範囲
となるように冷媒蒸発温度を制御すると共に、伝熱管９
の内径より小径の孔１１を伝熱管９と同心状に、かつ、
伝熱管９と同数個設けた多孔板１０を伝熱管９の上流に
配置して伝熱管９に流入する製氷用ブラインＢの流量及
び氷充填率分布を一様にする。
(57) [Summary] [PROBLEMS] To provide an ice slurry manufacturing equipment of a refrigerant dispersion type capable of efficiently manufacturing a homogeneous ice slurry. An ice making brine (B) is passed through a plurality of heat transfer tubes (9) arranged in a main body (6) of an ice maker (2), and a refrigerant liquid (La) is sprayed from above a heat transfer tube group (90) to form an outer wall surface of each heat transfer tube (9). In addition to controlling the refrigerant evaporation temperature so that the temperature of the ice making brine B in each heat transfer tube 9 is stable and free from blockage in the tube, the heat transfer tube 9
Hole 11 smaller than the inner diameter of the heat transfer tube 9 concentrically, and
The same number of perforated plates 10 as the heat transfer tubes 9 are arranged upstream of the heat transfer tubes 9 to make the flow rate and the ice filling rate distribution of the ice making brine B flowing into the heat transfer tubes 9 uniform.
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、ビルの空調用や地
域冷暖房設備などの冷熱源として使用されるシャーベッ
ト状の氷スラリーを製造するための氷スラリー製造設備
に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ice slurry production facility for producing a sherbet-shaped ice slurry used as a cooling source for building air conditioning, district heating and cooling facilities, and the like.
【０００２】[0002]
【従来の技術】昨今、夜間に、電力料金の安い夜間電力
を用いて生成したシャーベット状の氷スラリーを蓄熱槽
に貯蔵し、この氷スラリーを用いて昼間の冷熱必要時に
空調設備の冷水を冷却することが行われている。2. Description of the Related Art In recent years, sherbet-shaped ice slurry generated using nighttime electric power at a low electricity rate is stored in a heat storage tank, and the ice slurry is used to cool chilled water for air conditioning equipment when daytime cold heat is required. That is being done.
【０００３】ところが、製氷器本体内に配置させた多数
の伝熱管内に製氷用ブラインを通す一方、製氷器本体内
に冷媒液を充満させた所謂満液式の製氷器を用いた氷ス
ラリー製造設備では、均質な氷スラリーを得ることが難
しいという問題があった。その主たる原因は、冷媒液の
表面と製氷器本体の底部では、冷媒液の液圧が相違する
ためと考えられている。However, while making ice making brine pass through a number of heat transfer tubes arranged in the ice making device main body, an ice slurry is produced using a so-called full-type ice maker in which the ice making device main body is filled with a refrigerant liquid. The equipment has a problem that it is difficult to obtain a homogeneous ice slurry. The main cause is thought to be that the liquid pressure of the refrigerant liquid is different between the surface of the refrigerant liquid and the bottom of the ice making device main body.
【０００４】[0004]
【発明が解決しようとする課題】本発明は、係る従来の
問題を解消するために創案されたものであり、その目的
とするところは、均質な氷スラリーを効率的に製造する
ことができる冷媒散布式の氷スラリー製造設備を提供す
ることにある。SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems, and an object of the present invention is to provide a refrigerant capable of efficiently producing a homogeneous ice slurry. It is an object of the present invention to provide a spray type ice slurry production facility.
【０００５】[0005]
【課題を解決するための手段】上記目的を達成し得る請
求項１に記載の発明に係る氷スラリー製造設備は、製氷
器の本体内に配置した多数の伝熱管内に製氷用ブライン
を通すと共に、伝熱管群の上方から冷媒液を噴霧して各
伝熱管の外壁面に液膜を生成し、各伝熱管内の製氷用ブ
ラインの温度が安定製氷可能で、かつ、管内閉塞を起こ
さない温度範囲となるように冷媒蒸発温度を制御すると
共に、伝熱管の内径より小径の孔を伝熱管と同心状に、
かつ、伝熱管と同数個設けた多孔板を伝熱管の上流に配
置して伝熱管に流入する製氷用ブラインの流量及び氷充
填率分布を一様にすることを特徴とするものである。According to a first aspect of the present invention, there is provided an ice slurry manufacturing facility capable of achieving the above object, by passing ice making brine through a plurality of heat transfer tubes arranged in the main body of an ice maker. The liquid coolant is sprayed from above the heat transfer tube group to form a liquid film on the outer wall surface of each heat transfer tube, and the temperature of the ice-making brine in each heat transfer tube is stable and free from blockage. While controlling the refrigerant evaporation temperature to be in the range, a hole smaller in diameter than the inner diameter of the heat transfer tube is concentric with the heat transfer tube,
Further, the present invention is characterized in that the same number of perforated plates as the heat transfer tubes are arranged upstream of the heat transfer tubes so that the flow rate and the ice filling rate distribution of the ice making brine flowing into the heat transfer tubes are uniform.
【０００６】請求項１に記載の発明によれば、伝熱管群
に向けてその上方から冷媒液を噴霧させる冷媒散布式を
採用したことと、伝熱管の上流に多孔板を設けて製氷用
ブラインを整流させることが相まって管内閉塞を起こさ
ずに均質な氷スラリーを効率的に製造することができ
る。According to the first aspect of the present invention, a refrigerant dispersing system for spraying a refrigerant liquid from above onto the heat transfer tube group is employed, and a perforated plate is provided upstream of the heat transfer tubes to provide a brine for ice making. In addition, the uniform slurries can be efficiently produced without causing clogging in the tube.
【０００７】ここで、製氷用ブラインとしては、濃度１
０〜３０重量％、より好ましくは濃度２５〜３０重量％
のＤ−ソルビトール水溶液であることが望ましい。ま
た、製氷ブラインに、予め、５〜１５重量％の氷の粒子
を含有させることが望ましい。また、冷媒液の噴霧量を
蒸発量の２〜４倍とすることが望ましい。また、管内レ
イノルズ数を５００〜３５００とすることが望ましい。Here, brine for ice making has a concentration of 1
0-30% by weight, more preferably 25-30% by weight
It is preferable to use an aqueous solution of D-sorbitol. It is also desirable that the ice making brine contain 5 to 15% by weight of ice particles in advance. Further, it is desirable that the spray amount of the refrigerant liquid is set to 2 to 4 times the evaporation amount. Further, it is desirable that the in-tube Reynolds number be 500 to 3500.
【０００８】[0008]
【発明の実施の形態】以下、図面により本発明の実施の
形態を説明する。図３は、本発明に係る氷スラリー製造
設備の概略図であり、主として、空冷ヒートポンプ１と
横型製氷器（以下、製氷器と称する）２と蓄熱槽３から
構成されている。Embodiments of the present invention will be described below with reference to the drawings. FIG. 3 is a schematic diagram of an ice slurry production facility according to the present invention, which mainly includes an air-cooled heat pump 1, a horizontal ice maker (hereinafter, referred to as an ice maker) 2, and a heat storage tank 3.
【０００９】蓄熱槽３の製氷用ブライン（以下、ブライ
ンと称する）Ｂをブラインポンプ４によって製氷器２の
入口５に供給すると、氷粒子を含むブラインＢは、製氷
器２の本体６内に配置されている図示しない多数の伝熱
管の中を通過する間に冷媒液Ｌａにより冷却されて氷粒
子が増量され、シャーベット状の氷スラリーＳと化し、
製氷器２の出口７から蓄熱槽３に戻されるようになって
いる。When brine B for ice making (hereinafter referred to as "brine") in the heat storage tank 3 is supplied to the inlet 5 of the ice maker 2 by the brine pump 4, the brine B containing ice particles is disposed in the main body 6 of the ice maker 2. While passing through a number of heat transfer tubes (not shown), the coolant particles La are cooled by the coolant liquid La to increase the amount of ice particles, thereby forming a sherbet-like ice slurry S,
The heat is returned from the outlet 7 of the ice maker 2 to the heat storage tank 3.
【００１０】空冷ヒートポンプ１から製氷器２に供給さ
れる冷媒液Ｌａは、図示しないノズルから伝熱管群に向
けて噴霧される。そして、図示しない液溜まり部に溜ま
った冷媒液Ｌａは、図示しないバイパス管を通って、再
度、上記ノズルに供給されるが、ガス化した冷媒Ｌｂ
は、管８を通って空冷ヒートポンプ１に戻されるように
なっている。The refrigerant liquid La supplied from the air-cooled heat pump 1 to the ice maker 2 is sprayed from a nozzle (not shown) toward the heat transfer tube group. The refrigerant liquid La accumulated in the liquid reservoir (not shown) passes through a bypass pipe (not shown) and is again supplied to the nozzle.
Is returned to the air-cooled heat pump 1 through the pipe 8.
【００１１】他方、蓄熱槽３内のブラインＢは、別のブ
ラインポンプ３１によって熱交換器３２に送られ、熱交
換器３２にて冷暖房具用の冷水Ｗを冷却した後、蓄熱槽
３内に設けたノズル３３から蓄熱槽３内の氷スラリーＳ
に向けて噴霧されるようになっている。また、上記冷水
Ｗは、冷水ポンプ３４により熱交換器３２と冷暖房器３
５との間を循環するようになっている。On the other hand, the brine B in the heat storage tank 3 is sent to the heat exchanger 32 by another brine pump 31, and the heat exchanger 32 cools the cooling water W for cooling and heating equipment. From the nozzle 33 provided, the ice slurry S in the heat storage tank 3
It is designed to be sprayed toward. The cold water W is supplied to the heat exchanger 32 and the air conditioner 3 by the cold water pump 34.
5 and circulate.
【００１２】上記製氷器２は、図１に示すように、製氷
器本体６内に多数の伝熱管９を備えている。また、図１
に示すように、伝熱管９の上流に多孔板１０を配置して
いる。この多孔板１０は、伝熱管の本数と同数の孔を備
えると共に、孔を伝熱管と同心となるように配置してい
る。換言すれば、図２に示すように、多孔板１０の各孔
１１は、伝熱管９と軸芯１２を同じくしている。また、
多孔板１０の各孔１１は、その内径ｄ1 が伝熱管９の内
径ｄ2 より小さくなっており、多孔板１０の整流作用に
より伝熱管９に流入する製氷用ブラインの流量及び氷充
填率分布が一様になる。The ice maker 2 has a large number of heat transfer tubes 9 in an ice maker main body 6, as shown in FIG. FIG.
As shown in the figure, a perforated plate 10 is arranged upstream of the heat transfer tube 9. The perforated plate 10 has the same number of holes as the number of heat transfer tubes, and the holes are arranged so as to be concentric with the heat transfer tubes. In other words, as shown in FIG. 2, each hole 11 of the perforated plate 10 has the same axis 12 as the heat transfer tube 9. Also,
The inner diameter d 1 of each hole 11 of the perforated plate 10 is smaller than the inner diameter d 2 of the heat transfer tube 9, and the flow rate and ice filling rate distribution of the ice making brine flowing into the heat transfer tube 9 due to the rectifying action of the perforated plate 10. Becomes uniform.
【００１３】また、図１に示すように、伝熱管群９０の
上方には、冷媒液分配管１３が配置され、該冷媒液分配
管１３に一定の間隔で配置したノズル１４から伝熱管群
９０に向かって冷媒液Ｌａを噴霧するようになってい
る。ノズル１４から噴霧された冷媒液Ｌａは、各伝熱管
９の外壁面に液膜を形成する。これにより、全ての伝熱
管９において均質なシャーベット状の氷スラリーＳが得
られることになる。As shown in FIG. 1, a refrigerant liquid distribution pipe 13 is disposed above the heat transfer pipe group 90, and the nozzles 14 arranged at regular intervals in the refrigerant liquid distribution pipe 13 pass through the heat transfer pipe group 90. , The refrigerant liquid La is sprayed. The refrigerant liquid La sprayed from the nozzle 14 forms a liquid film on the outer wall surface of each heat transfer tube 9. As a result, a uniform sherbet-like ice slurry S is obtained in all the heat transfer tubes 9.
【００１４】また、図１のように、製氷器本体６の腹部
中央には、液溜まり部１５が設けられ、ここに溜まった
冷媒液Ｌａを図示しないバイパス管を通って冷媒液分配
管１３に戻されるようになっている。また、製氷器本体
６の背中部中央には、ガス溜まり部１６が設けられ、こ
のガス溜まり部１６に溜まった冷媒ガスＬｂは、管８を
通って空冷ヒートポンプ１に戻されるようになってい
る。As shown in FIG. 1, a liquid reservoir 15 is provided at the center of the abdomen of the ice making device main body 6, and the refrigerant liquid La collected here passes through a bypass pipe (not shown) to a refrigerant liquid distribution pipe 13. It is to be returned. A gas reservoir 16 is provided at the center of the back of the ice making device main body 6, and the refrigerant gas Lb accumulated in the gas reservoir 16 is returned to the air-cooled heat pump 1 through the pipe 8. .
【００１５】また、本発明にあっては、各伝熱管９内の
ブラインＢの温度が、安定製氷可能で、かつ、管内閉塞
を起こさない温度範囲となるように、冷媒蒸発温度を制
御している。冷媒蒸発温度の制御は、製氷器本体６のガ
ス溜まり部１６に接続している管８に設けられている流
量調整弁１７の流量を制御することにより行うことがで
きる。Further, in the present invention, the refrigerant evaporation temperature is controlled so that the temperature of the brine B in each heat transfer tube 9 is in a temperature range in which stable ice making is possible and the inside of the tube is not blocked. I have. The control of the refrigerant evaporation temperature can be performed by controlling the flow rate of a flow control valve 17 provided in the pipe 8 connected to the gas reservoir 16 of the icemaker body 6.
【００１６】この流量調整弁１７は、図１に示すよう
に、製氷器本体６の出口７に設けた温度計１８によって
製氷器本体６出口７における氷スラリーＳの温度Ｔ
（℃）を測定し、その温度Ｔ（℃）が所定の温度範囲に
なるようにコンピュータ１９により制御されている。符
号２０はコントローラを示している。ここで、製氷用ブ
ラインとしては、濃度１０〜３０重量％、より好ましく
は濃度２５〜３０重量％のＤ−ソルビトール水溶液であ
ることが望ましい。As shown in FIG. 1, the flow rate control valve 17 controls the temperature T of the ice slurry S at the outlet 7 of the ice maker main body 6 by a thermometer 18 provided at the outlet 7 of the ice maker main body 6.
(° C.), and is controlled by the computer 19 so that the temperature T (° C.) falls within a predetermined temperature range. Reference numeral 20 indicates a controller. Here, the brine for ice making is preferably an aqueous solution of D-sorbitol having a concentration of 10 to 30% by weight, more preferably 25 to 30% by weight.
【００１７】また、製氷ブラインに、予め、５〜１５重
量％の氷の粒子を含有させることが望ましい。氷粒子の
含有量が５％未満であれば、種氷が不足するため、製氷
器内において氷粒子の増分が少なくなる。一方、氷粒子
の含有量が１５％を超えると、製氷用ブラインの濃度が
高くなり、伝熱管内での流動性が悪化し、伝熱量が低下
する。It is desirable that the ice making brine contains 5 to 15% by weight of ice particles in advance. If the content of the ice particles is less than 5%, seed ice becomes insufficient, and the increment of the ice particles in the ice maker becomes small. On the other hand, when the content of the ice particles exceeds 15%, the concentration of the brine for making ice increases, the fluidity in the heat transfer tube deteriorates, and the heat transfer amount decreases.
【００１８】また、冷媒液の噴霧量を蒸発量の２〜４倍
とすることが望ましい。また、管内レイノルズ数を５０
０〜３５００とすることが望ましい。Further, it is desirable that the spray amount of the refrigerant liquid is 2 to 4 times the evaporation amount. In addition, the Reynolds number in the pipe is 50
It is desirable to set it to 0 to 3500.
【００１９】[0019]
【発明の効果】上記のように、請求項１に記載の発明に
よれば、製氷器の本体内に配置した多数の伝熱管内に製
氷用ブラインを通すと共に、伝熱管群の上方から冷媒液
を噴霧して各伝熱管の外壁面に液膜を生成すること、各
伝熱管内の製氷用ブラインの温度が安定製氷可能で、か
つ、管内閉塞を起こさない温度範囲となるように冷媒蒸
発温度を制御すること、伝熱管の内径より小径の孔を伝
熱管と同心状に、かつ、伝熱管と同数個設けた多孔板を
伝熱管の上流に配置して伝熱管に流入する製氷用ブライ
ンの流量及び氷充填率分布を一様にすることとが相まっ
て管内閉塞を起こさずに均質な氷スラリーを効率的に製
造することができるようになる。As described above, according to the first aspect of the present invention, the ice making brine is passed through a plurality of heat transfer tubes arranged in the main body of the ice maker, and the refrigerant liquid is supplied from above the heat transfer tube group. To form a liquid film on the outer wall surface of each heat transfer tube, and the refrigerant evaporation temperature so that the temperature of the ice making brine in each heat transfer tube is stable and ice is kept within a temperature range that does not cause blockage in the tubes. The holes of smaller diameter than the inner diameter of the heat transfer tube are concentric with the heat transfer tube, and the perforated plates provided with the same number as the heat transfer tube are arranged upstream of the heat transfer tube so that the ice making brine flowing into the heat transfer tube is controlled. The uniformity of the flow rate and the distribution of the ice filling rate, in combination, makes it possible to efficiently produce a homogeneous ice slurry without causing clogging in the tube.
【図１】本発明に係る氷スラリー製造設備の要図を示す
説明図である。FIG. 1 is an explanatory diagram showing a main view of an ice slurry production facility according to the present invention.
【図２】製氷器の要部拡大断面図である。FIG. 2 is an enlarged sectional view of a main part of the ice maker.
【図３】本発明に係る氷スラリー製造設備の全体を示す
概略図である。FIG. 3 is a schematic view showing an entire ice slurry production facility according to the present invention.
２ 製氷器 ６ 製氷器本体 ９ 伝熱管 １０ 多孔板 １１ 孔 ９０ 伝熱管群 Ｂ 製氷用ブライン Ｌａ 冷媒液 2 Ice maker 6 Ice maker main body 9 Heat transfer tube 10 Perforated plate 11 Hole 90 Heat transfer tube group B Ice making brine La Refrigerant liquid
───────────────────────────────────────────────────── フロントページの続き (72)発明者 佐藤 信夫 東京都中央区築地５丁目６番４号 三井造 船株式会社内 ──────────────────────────────────────────────────の Continuing on the front page (72) Inventor Nobuo Sato 5-6-4 Tsukiji, Chuo-ku, Tokyo Mitsui Engineering & Shipbuilding Co., Ltd.
Claims (6)
内に製氷用ブラインを通すと共に、伝熱管群の上方から
冷媒液を噴霧して各伝熱管の外壁面に液膜を生成し、各
伝熱管内の製氷用ブラインの温度が安定製氷可能で、か
つ、管内閉塞を起こさない温度範囲となるように冷媒蒸
発温度を制御すると共に、伝熱管の内径より小径の孔を
伝熱管と同心状に、かつ、伝熱管と同数個設けた多孔板
を伝熱管の上流に配置して伝熱管に流入する製氷用ブラ
インの流量及び氷充填率分布を一様にするようにした氷
スラリー製造設備。An ice making brine is passed through a plurality of heat transfer tubes arranged in a main body of an ice making device, and a refrigerant liquid is sprayed from above the heat transfer tube group to form a liquid film on an outer wall surface of each heat transfer tube. In addition, while controlling the refrigerant evaporation temperature so that the temperature of the ice-making brine in each heat transfer tube is stable and ice-making is possible and does not cause blockage in the tube, a hole having a diameter smaller than the inner diameter of the heat transfer tube is formed as the heat transfer tube. Ice slurry production in which a plurality of perforated plates provided concentrically and as many as the heat transfer tubes are arranged upstream of the heat transfer tubes so that the flow rate and the ice filling rate distribution of the ice making brine flowing into the heat transfer tubes are made uniform. Facility.
％のＤ−ソルビトール水溶液である請求項１記載の氷ス
ラリー製造設備。2. The ice slurry production facility according to claim 1, wherein the brine for making ice is an aqueous solution of D-sorbitol having a concentration of 10 to 30% by weight.
％のＤ−ソルビトール水溶液である請求項１記載の氷ス
ラリー製造設備。3. The ice slurry production equipment according to claim 1, wherein the brine for making ice is an aqueous solution of D-sorbitol having a concentration of 25 to 30% by weight.
の氷の粒子を含有させる請求項１記載の氷スラリー製造
設備。4. An ice making brine containing 5 to 15% by weight in advance.
The ice slurry production equipment according to claim 1, wherein the ice slurry contains ice particles.
る請求項１記載の氷スラリー製造設備。5. The ice slurry production facility according to claim 1, wherein the spray amount of the refrigerant liquid is set to 2 to 4 times the evaporation amount.
する請求項１記載の氷スラリー製造設備。6. The ice slurry production facility according to claim 1, wherein the in-tube Reynolds number is 500-3500.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16678797A JP3996239B2 (en) | 1997-06-24 | 1997-06-24 | Ice slurry production equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16678797A JP3996239B2 (en) | 1997-06-24 | 1997-06-24 | Ice slurry production equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH1114209A true JPH1114209A (en) | 1999-01-22 |
| JP3996239B2 JP3996239B2 (en) | 2007-10-24 |
Family
ID=15837675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16678797A Expired - Fee Related JP3996239B2 (en) | 1997-06-24 | 1997-06-24 | Ice slurry production equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3996239B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004506864A (en) * | 2000-08-11 | 2004-03-04 | ポール ミュラー カンパニー | Bimetal tube of heat exchanger of ice machine |
| CN112728826A (en) * | 2021-01-21 | 2021-04-30 | 珠海格力电器股份有限公司 | Ice maker and refrigerator |
-
1997
- 1997-06-24 JP JP16678797A patent/JP3996239B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004506864A (en) * | 2000-08-11 | 2004-03-04 | ポール ミュラー カンパニー | Bimetal tube of heat exchanger of ice machine |
| CN112728826A (en) * | 2021-01-21 | 2021-04-30 | 珠海格力电器股份有限公司 | Ice maker and refrigerator |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3996239B2 (en) | 2007-10-24 |
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