JP3484528B2 - Decompression evaporative cooling system - Google Patents
Decompression evaporative cooling systemInfo
- Publication number
- JP3484528B2 JP3484528B2 JP24699894A JP24699894A JP3484528B2 JP 3484528 B2 JP3484528 B2 JP 3484528B2 JP 24699894 A JP24699894 A JP 24699894A JP 24699894 A JP24699894 A JP 24699894A JP 3484528 B2 JP3484528 B2 JP 3484528B2
- Authority
- JP
- Japan
- Prior art keywords
- ejector
- cooling
- fluid
- tank
- heat exchanger
- 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 - Fee Related
Links
Description
【発明の詳細な説明】
【０００１】
【産業上の利用分野】本発明は、冷却室内を大気圧以下
の減圧状態にして被冷却物を気化冷却するものに関す
る。具体的には、各種反応を行う反応釜の冷却装置、食
品や医療品や繊維等の気化冷却装置等に関する。
【０００２】
【従来の技術】従来の減圧気化冷却装置として、例えば
特開平５−１５７７３号公報に示されたものがある。こ
れは、エゼクタとタンクと循環ポンプを組み合わせた組
み合わせポンプと、エゼクタと連通した気化冷却室と、
上記タンクに冷却水を供給する冷却水供給通路とから成
ると共に、タンクを複数個配置して、少なくとも１つの
タンクに冷却手段を設けたもので、この冷却手段により
タンク内の流体温度を所望値に維持しておき、冷却度合
を変更する場合に、この所望値に維持した流体をエゼク
タへ供給することにより、エゼクタの吸引力を速やかに
変更して冷却の時間遅れを少なくしたものである。
【０００３】
【本発明が解決しようとする課題】上記従来のもので
は、気化冷却の度合を変化させる場合に未だ尚時間遅れ
を生じてしまう問題があった。これは、タンク内の流体
を所望値に維持するために、タンク内の流体がタンクか
らエゼクタへ到達するまでに時間を要してしまうためで
ある。
【０００４】従って本発明の技術的課題は、気化冷却の
度合即ち冷却温度の変更を更に時間遅れなく行なうこと
のできる減圧気化冷却装置を得ることである。
【０００５】
【課題を解決するための手段】本発明の減圧気化冷却装
置の構成は次の通りである。エゼクタとタンクと循環ポ
ンプを組み合わせた組み合わせポンプと、該エゼクタと
連通した気化冷却室とから成る気化冷却装置において、
循環ポンプの吸込側をタンクと接続し、循環ポンプの吐
出側に熱交換器を介してエゼクタと接続して、エゼクタ
に流入する直前の流体を当該熱交換器によって加熱また
は冷却して所望の温度とすることを特徴とするものであ
る。
【０００６】
【作用】循環ポンプとエゼクタとの間に熱交換器を設け
たことにより、循環ポンプからエゼクタへ供給される流
体の温度は、エゼクタへの流入直前に所望温度に維持す
ることができる。従って、エゼクタには必要とする温度
の流体が時間遅れなく、且つ、速やかに供給され、所望
の吸引力即ち減圧度を発生する。
【０００７】
【実施例】図示の実施例を詳細に説明する。本実施例に
おいては、気化冷却装置として反応釜を用いた例を示
す。気化冷却室としてのジャケット部１を備えた反応釜
２と、組み合わせポンプ３と熱交換器４とで減圧気化冷
却装置を構成する。反応釜２は、ほぼ全周にわたりジャ
ケット部１を形成すると共に、原料入口５、製品出口
６、撹拌器７、被冷却物の温度を検出する温度センサ―
８を備え、ジャケット部１には冷却流体供給口９，１０
と流体排出口１１を設けてある。
【０００８】組み合わせポンプ３は、循環ポンプ１２が
タンク１３に吸込側を接続され吐出側を熱交換器４を介
してエゼクタ１４のノズル１５に接続し、エゼクタ１４
のディフュ―ザ１６がタンク１３の上部空間に接続され
た構成のものであり、エゼクタ１４と反応釜２の流体排
出口１１とが弁１７とスチ―ムトラップ１８を介して接
続されている。この組み合わせポンプ３は、循環ポンプ
１２の駆動によりタンク１３内の流体例えば水をエゼク
タ１４に供給して吸引作用させ、タンク１３に戻すよう
になっている。
【０００９】熱交換器４は、循環ポンプ１２からエゼク
タ１４に連通する管路１９と、加熱または冷却流体を供
給する他方の管路２０とを内蔵する。管路２０は弁２１
を介して冷却流体供給管２２と接続すると共に、弁２３
を介して加熱用の蒸気供給管２４と接続する。従って、
管路１９内の流体は、エゼクタ１４に流入する直前に熱
交換器４によって加熱または冷却され所望の温度とな
る。本実施例には図示はしていないが、管路１９の熱交
換器４入口または出口側に温度センサ―を取り付けて弁
２１または２３を開閉したり、弁開度を調節して、エゼ
クタ１４に流入する流体の温度を任意に調整することも
できる。
【００１０】タンク１３に別途の冷却流体供給管２５を
弁２６を介して接続すると共に、弁２７を介してジャケ
ット部１の冷却流体供給口９と接続する。循環ポンプ１
２とエゼクタ１４を接続する管路１９の一部を分岐して
余剰水排出弁２８を取り付け、タンク１３内の図示しな
い水位センサ―からの信号により、タンク１３内の水位
を所定範囲に保つようにする。
【００１１】被冷却物を冷却する場合、即ちジャケット
部１で気化冷却を行う場合、冷却水供給管２５から弁２
７を介してジャケット部１に冷却流体を供給する。循環
ポンプ１２の駆動によりタンク１３内の流体は熱交換器
４を経てエゼクタ１４に至り吸引力を生じる。エゼクタ
１４の吸引力により、ジャケット部１内も減圧状態とな
り、冷却流体は被冷却物の熱により気化し、被冷却物を
冷却する。気化した蒸気は弁１７を通り、エゼクタ１４
に吸引されタンク１３に至る。
【００１２】冷却度合を変えるためにジャケット部１内
の減圧度を変える場合、循環ポンプ１２から管路１９を
通過する流体を熱交換器４により加熱したりあるいは冷
却することによって所定温度とすることができ、この流
体をエゼクタ１４に供給することによって減圧度を速や
かに変えることができる。
【００１３】本実施例においては、弁３０を介して加熱
用の蒸気供給管２４を流体供給口１０と接続したことに
より、減圧気化冷却のみならず、低圧蒸気を供給しての
減圧蒸気加熱あるいは正圧蒸気加熱を行うこともでき
る。
【００１４】
【発明の効果】本発明は次のような効果を奏する。循環
ポンプとエゼクタとの間に熱交換器を設けて、エゼクタ
に流入する流体の温度をエゼクタへの流入直前に所望値
に維持することができ、減圧度即ち気化温度を変更する
場合の時間遅れを最少のものとすることができる。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for evaporating and cooling an object to be cooled by setting a cooling chamber to a reduced pressure state below atmospheric pressure. More specifically, the present invention relates to a cooling device for a reaction vessel for performing various reactions, a vaporizing cooling device for food, medical products, fibers, and the like. 2. Description of the Related Art As a conventional reduced-pressure evaporative cooling apparatus, there is one disclosed in, for example, Japanese Patent Application Laid-Open No. Hei 5-15773. This is a combination pump that combines an ejector, a tank, and a circulation pump, a vaporization cooling chamber that communicates with the ejector,
A cooling water supply passage for supplying cooling water to the tank, wherein a plurality of tanks are arranged, and cooling means is provided in at least one of the tanks. When the degree of cooling is changed and the fluid maintained at the desired value is supplied to the ejector, the suction force of the ejector is quickly changed to reduce the time delay of cooling. [0003] In the above-mentioned prior art, there is a problem that a time delay still occurs when the degree of evaporative cooling is changed. This is because it takes time for the fluid in the tank to reach the ejector from the tank in order to maintain the fluid in the tank at a desired value. Accordingly, it is an object of the present invention to provide a reduced-pressure evaporative cooling apparatus capable of changing the degree of evaporative cooling, that is, the cooling temperature without further delay. [0005] The configuration of the reduced pressure evaporative cooling device of the present invention is as follows. In a combined cooling pump combining an ejector, a tank and a circulation pump, and a combined cooling and vaporizing cooling chamber connected to the ejector,
Connect the suction side of the circulation pump to the tank, and
Connect the ejector to the outlet via a heat exchanger
The fluid just before flowing into the heat exchanger is heated or heated by the heat exchanger.
Is characterized by cooling to a desired temperature . By providing a heat exchanger between the circulation pump and the ejector, the temperature of the fluid supplied from the circulation pump to the ejector can be maintained at a desired temperature immediately before flowing into the ejector. . Therefore, a fluid at a required temperature is supplied to the ejector promptly without a time delay, and a desired suction force, that is, a reduced pressure is generated. An embodiment shown in the drawings will be described in detail. In this embodiment, an example in which a reaction vessel is used as a vaporization cooling device will be described. A reactor 2 having a jacket 1 as a vaporizing cooling chamber, a combination pump 3 and a heat exchanger 4 constitute a reduced-pressure vaporizing cooling device. The reactor 2 has a jacket portion 1 formed over substantially the entire circumference, a raw material inlet 5, a product outlet 6, a stirrer 7, and a temperature sensor for detecting the temperature of a cooled object.
8, and cooling fluid supply ports 9, 10 are provided in the jacket portion 1.
And a fluid outlet 11 are provided. In the combination pump 3, a circulating pump 12 has a suction side connected to a tank 13 and a discharge side connected to a nozzle 15 of an ejector 14 via a heat exchanger 4, and
Is connected to the upper space of the tank 13, and the ejector 14 and the fluid outlet 11 of the reactor 2 are connected via a valve 17 and a steam trap 18. In the combination pump 3, the fluid in the tank 13, for example, water is supplied to the ejector 14 by the driving of the circulating pump 12 to cause the ejector 14 to perform a suction action and return to the tank 13. The heat exchanger 4 has a built-in conduit 19 communicating from the circulating pump 12 to the ejector 14 and another conduit 20 for supplying a heating or cooling fluid. Line 20 is a valve 21
Connected to the cooling fluid supply pipe 22 through the
And a steam supply pipe 24 for heating. Therefore,
The fluid in the pipe 19 is heated or cooled by the heat exchanger 4 to a desired temperature just before flowing into the ejector 14. Although not shown in the present embodiment, a temperature sensor is attached to the inlet or outlet side of the heat exchanger 4 in the pipe line 19 to open or close the valve 21 or 23, or to adjust the valve opening, to thereby adjust the ejector 14. The temperature of the fluid flowing into the can be adjusted arbitrarily. A separate cooling fluid supply pipe 25 is connected to the tank 13 via a valve 26, and is connected to the cooling fluid supply port 9 of the jacket 1 via a valve 27. Circulation pump 1
A part of a pipe line 19 connecting the ejector 2 and the ejector 14 is branched, and a surplus water discharge valve 28 is attached. The signal from a water level sensor (not shown) in the tank 13 keeps the water level in the tank 13 within a predetermined range. To When the object to be cooled is cooled, that is, when vaporization cooling is performed in the jacket portion 1, the valve 2 is connected to the cooling water supply pipe 25 through the valve 2.
The cooling fluid is supplied to the jacket section 1 through 7. When the circulation pump 12 is driven, the fluid in the tank 13 passes through the heat exchanger 4 and reaches the ejector 14 to generate a suction force. Due to the suction force of the ejector 14, the inside of the jacket portion 1 is also decompressed, and the cooling fluid is vaporized by the heat of the object to be cooled, thereby cooling the object to be cooled. The vaporized vapor passes through the valve 17 and passes through the ejector 14
And it reaches the tank 13. When the degree of pressure reduction in the jacket portion 1 is changed in order to change the degree of cooling, the fluid passing through the pipe 19 from the circulation pump 12 is heated or cooled by the heat exchanger 4 to a predetermined temperature. By supplying this fluid to the ejector 14, the degree of pressure reduction can be changed quickly. In the present embodiment, the heating steam supply pipe 24 is connected to the fluid supply port 10 via the valve 30, so that not only reduced pressure vaporization cooling but also reduced pressure steam heating by supplying low pressure steam or Positive pressure steam heating can also be performed. The present invention has the following effects. By providing a heat exchanger between the circulation pump and the ejector, the temperature of the fluid flowing into the ejector can be maintained at a desired value immediately before flowing into the ejector, and a time delay in changing the degree of pressure reduction, that is, the vaporization temperature. Can be minimized.
【図面の簡単な説明】
【図１】本発明の減圧気化冷却装置の実施例の構成図で
ある。
【符号の説明】
１ ジャケット部
２ 反応釜
３ 組み合わせポンプ
４ 熱交換器
１２ 循環ポンプ
１３ タンク
１４ エゼクタBRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a configuration diagram of an embodiment of a reduced-pressure evaporative cooling device of the present invention. [Description of Signs] 1 Jacket part 2 Reactor 3 Combination pump 4 Heat exchanger 12 Circulation pump 13 Tank 14 Ejector
Claims (1)
せた組み合わせポンプと、該エゼクタと連通した気化冷
却室とから成る気化冷却装置において、循環ポンプの吸
込側をタンクと接続し、循環ポンプの吐出側に熱交換器
を介してエゼクタと接続して、エゼクタに流入する直前
の流体を当該熱交換器によって加熱または冷却して所望
の温度とすることを特徴とする減圧気化冷却装置。(57) [Claim 1] In a vaporization cooling device comprising a combination pump in which an ejector, a tank and a circulation pump are combined, and a vaporization cooling chamber communicating with the ejector, a suction of the circulation pump is provided.
And the heat exchanger on the discharge side of the circulation pump.
Just before flowing into the ejector
Is heated or cooled by the heat exchanger.
A decompression evaporative cooling device characterized by having a temperature of
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24699894A JP3484528B2 (en) | 1994-09-14 | 1994-09-14 | Decompression evaporative cooling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24699894A JP3484528B2 (en) | 1994-09-14 | 1994-09-14 | Decompression evaporative cooling system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0884924A JPH0884924A (en) | 1996-04-02 |
| JP3484528B2 true JP3484528B2 (en) | 2004-01-06 |
Family
ID=17156859
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24699894A Expired - Fee Related JP3484528B2 (en) | 1994-09-14 | 1994-09-14 | Decompression evaporative cooling system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3484528B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103977753A (en) * | 2014-05-22 | 2014-08-13 | 武汉华轩高新技术有限公司 | High-efficiency reactor applicable to production of polycarboxylic water reducer |
-
1994
- 1994-09-14 JP JP24699894A patent/JP3484528B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103977753A (en) * | 2014-05-22 | 2014-08-13 | 武汉华轩高新技术有限公司 | High-efficiency reactor applicable to production of polycarboxylic water reducer |
| CN103977753B (en) * | 2014-05-22 | 2016-05-18 | 武汉华轩高新技术有限公司 | A kind of high-effect reactor that is applied to poly carboxylic acid series water reducer production |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0884924A (en) | 1996-04-02 |
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