JP2003106714A - Cooling system, its controlling device and its controlling method - Google Patents
Cooling system, its controlling device and its controlling methodInfo
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- JP2003106714A JP2003106714A JP2001294613A JP2001294613A JP2003106714A JP 2003106714 A JP2003106714 A JP 2003106714A JP 2001294613 A JP2001294613 A JP 2001294613A JP 2001294613 A JP2001294613 A JP 2001294613A JP 2003106714 A JP2003106714 A JP 2003106714A
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- Prior art keywords
- refrigerant
- cooling system
- pressure
- space
- valve
- 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.)
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- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、冷却システム並び
にその制御装置及び制御方法に係り、特に、板形熱交換
器を含む冷却システム並びにその制御装置及び制御方法
に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cooling system and a control device and control method thereof, and more particularly to a cooling system including a plate heat exchanger and a control device and control method thereof.
【０００２】[0002]
【従来の技術】ビール等の製造工程において高温の麦汁
を冷却するために板形熱交換器(platetype heat exchan
ger)が有用である。板形熱交換器は、冷媒が流れる冷媒
空間と被冷却物が流れる被冷却物空間とを熱伝達性のよ
い板で仕切った構造を有し、該板を通して冷媒と被冷却
物との間で熱交換が行われる。典型的な板形熱交換器で
は、多数の冷媒空間と被冷却物空間とが板で仕切られて
交互に配置される。2. Description of the Related Art A plate type heat exchanger is used to cool high-temperature wort during the manufacturing process of beer and the like.
ger) is useful. The plate heat exchanger has a structure in which the refrigerant space in which the refrigerant flows and the cooled object space in which the cooled object flows are partitioned by a plate having good heat transfer properties, and between the refrigerant and the cooled object through the plate. Heat exchange takes place. In a typical plate heat exchanger, a large number of refrigerant spaces and object spaces are partitioned by plates and arranged alternately.
【０００３】[0003]
【発明が解決しようとする課題】ビールのような飲料を
製造する際は、板形熱交換器の板に生じうる穴や亀裂等
を通してビール等の飲料又はその中間品に冷媒が混入し
ないように注意する必要がある。本出願人は、冷媒が混
入した飲料が出荷されないよう様々な対策を講じてい
る。When producing a beverage such as beer, the refrigerant is prevented from being mixed into the beverage such as beer or an intermediate product thereof through holes or cracks that may occur in the plate of the plate heat exchanger. You need to be careful. The Applicant has taken various measures to prevent the beverage containing the refrigerant from being shipped.
【０００４】しかしながら、例えば、板形熱交換器を検
査した後に更に検査するまでの間に該板形熱交換器の板
に穴や亀裂等が生じその状態で飲料又はその中間品が冷
却された場合には、製造された飲料、すなわち冷媒が検
出された飲料又は冷媒が混入している可能性のある飲料
を全て廃棄する必要がある。However, for example, after inspecting the plate heat exchanger and before further inspection, holes or cracks are formed in the plate of the plate heat exchanger, and the beverage or its intermediate product is cooled in that state. In this case, it is necessary to discard all manufactured beverages, that is, beverages for which a refrigerant has been detected or beverages that may contain a refrigerant.
【０００５】本発明は、上記の背景に鑑みてなされたも
のであり、例えば、板形熱交換器の板に生じうる穴や亀
裂等の破損箇所を通して冷媒が被冷却物に混入すること
を防止することを目的とする。The present invention has been made in view of the above background. For example, it is possible to prevent the refrigerant from being mixed into the object to be cooled through a damaged portion such as a hole or a crack that may occur in the plate of the plate heat exchanger. The purpose is to do.
【０００６】[0006]
【課題を解決するための手段】本発明の第１の側面は、
冷媒が流れる冷媒空間と被冷却物が流れる被冷却物空間
とを板で仕切った板形熱交換器を含む冷却システムの制
御装置に係り、前記冷却システムによる冷却動作の停止
時に前記冷媒空間内の圧力が前記被冷却物空間内の圧力
よりも低い状態に維持されるように前記被冷却物空間内
の圧力に対する前記冷媒空間内の圧力を調整する圧力調
整手段を備えることを特徴とする。The first aspect of the present invention is as follows.
A cooling device control device of a cooling system including a plate heat exchanger partitioning a cooling medium space in which a cooling medium flows and a cooling object space in which a cooling object flows, in the cooling medium space when the cooling operation by the cooling system is stopped. It is characterized by comprising pressure adjusting means for adjusting the pressure in the refrigerant space with respect to the pressure in the cooled object space so that the pressure is maintained lower than the pressure in the cooled object space.
【０００７】本発明の好適な実施の形態によれば、前記
圧力調整手段は、前記冷媒空間に通じている流路にバル
ブを有し、前記バルブは、前記冷却システムによる冷却
動作の停止時に開いて前記冷媒空間内の圧力を低下させ
ることが好ましい。ここで、前記バルブは、電力が供給
されていないときに開いた状態になるバルブであること
が好ましい。また、前記制御装置は、前記冷却システム
による冷却動作の停止時に前記バルブを通して排出され
る冷媒を回収する手段を更に備えることが好ましい。According to a preferred embodiment of the present invention, the pressure adjusting means has a valve in a flow path communicating with the refrigerant space, and the valve is opened when the cooling operation by the cooling system is stopped. It is preferable to lower the pressure in the refrigerant space. Here, it is preferable that the valve is a valve that is opened when power is not supplied. Further, it is preferable that the control device further includes means for collecting the refrigerant discharged through the valve when the cooling operation by the cooling system is stopped.
【０００８】或いは、本発明の好適な実施の形態によれ
ば、前記圧力調整手段は、前記冷媒空間に冷媒を供給す
る流路に配置された第１バルブと、前記冷媒空間から冷
媒を排出する流路に配置された第２バルブと、前記第２
のバルブと前記冷媒空間との間に配置された第３バルブ
とを有し、前記冷却システムによる冷却動作の停止時
に、前記第１及び第２バルブが閉じた状態で、前記第３
バルブが開いて前記冷媒空間内の圧力を低下させること
が好ましい。ここで、前記第１及び第２バルブは、電力
が供給されていないときに閉じた状態になるバルブであ
り、前記第３バルブは、電力が供給されていないときに
開いた状態になるバルブであることが好ましい。また、
前記制御装置は、前記冷却システムによる冷却動作の停
止時に前記第３バルブを通して排出される冷媒を回収す
る手段を更に備えることが好ましい。[0008] Alternatively, according to a preferred embodiment of the present invention, the pressure adjusting means discharges the refrigerant from the first valve arranged in the flow path for supplying the refrigerant to the refrigerant space and the refrigerant space. A second valve disposed in the flow path, and the second valve
And a third valve disposed between the refrigerant space and the third space, and when the cooling operation by the cooling system is stopped, the first and second valves are closed and the third valve is closed.
It is preferable that the valve is opened to reduce the pressure in the refrigerant space. Here, the first and second valves are valves which are closed when electric power is not supplied, and the third valve is a valve which is opened when electric power is not supplied. Preferably there is. Also,
It is preferable that the control device further includes means for collecting the refrigerant discharged through the third valve when the cooling operation by the cooling system is stopped.
【０００９】本発明の好適な実施の形態によれば、前記
制御装置は、前記冷却システムによる冷却動作時に前記
冷媒空間内の圧力を前記被冷却物空間内の圧力よりも低
い圧力に維持する手段を更に備える。According to a preferred embodiment of the present invention, the control device maintains the pressure in the refrigerant space at a pressure lower than the pressure in the object space during the cooling operation by the cooling system. Is further provided.
【００１０】本発明の好適な実施の形態によれば、前記
冷却動作の停止時は、例えば、前記冷却動作の異常が発
生した時、及び／又は、停電時、及び／又は、前記冷却
動作の終了時を含む。According to a preferred embodiment of the present invention, when the cooling operation is stopped, for example, when an abnormality of the cooling operation occurs and / or at the time of a power failure, and / or when the cooling operation is stopped. Including the end time.
【００１１】本発明の好適な実施の形態によれば、前記
被冷却物は、飲料又はその中間品を含む。According to a preferred embodiment of the present invention, the object to be cooled includes a beverage or an intermediate product thereof.
【００１２】本発明の第２の側面は、冷却システムに係
り、冷媒が流れる冷媒空間と被冷却物が流れる被冷却物
空間とを板で仕切った板形熱交換器と、前記板形熱交換
機による冷却動作の停止時に前記冷媒空間内の圧力が前
記被冷却物空間内の圧力よりも低い状態に維持されるよ
うに前記被冷却物空間内の圧力に対する前記冷媒空間内
の圧力を調整する圧力調整手段とを備えることを特徴と
する。ここで、本発明の好適な実施の形態によれば、前
記被冷却物は、飲料又はその中間品を含む。A second aspect of the present invention relates to a cooling system, and a plate heat exchanger in which a refrigerant space in which a refrigerant flows and a cooled object space in which an object to be cooled flows are separated by a plate, and the plate heat exchanger. A pressure for adjusting the pressure in the refrigerant space with respect to the pressure in the cooled object space so that the pressure in the cooled refrigerant space is maintained lower than the pressure in the cooled object space when the cooling operation is stopped by And adjusting means. Here, according to a preferred embodiment of the present invention, the object to be cooled includes a beverage or an intermediate product thereof.
【００１３】本発明の第３の側面は、冷媒が流れる冷媒
空間と被冷却物が流れる被冷却物空間とを板で仕切った
板形熱交換器を含む冷却システムの制御方法に係り、前
記冷却システムによる冷却動作の停止時に前記冷媒空間
内の圧力が前記被冷却物空間内の圧力よりも低い状態に
維持されるように前記被冷却物空間内の圧力に対する前
記冷媒空間内の圧力を調整することを特徴とする。ここ
で、本発明の好適な実施の形態によれば、前記被冷却物
は、飲料又はその中間品を含む。A third aspect of the present invention relates to a method for controlling a cooling system including a plate heat exchanger in which a refrigerant space in which a refrigerant flows and a cooled object space in which an object to be cooled flows are separated by plates. Adjusting the pressure in the refrigerant space with respect to the pressure in the cooled object space such that the pressure in the cooled object space is maintained lower than the pressure in the cooled object space when the cooling operation by the system is stopped. It is characterized by Here, according to a preferred embodiment of the present invention, the object to be cooled includes a beverage or an intermediate product thereof.
【００１４】[0014]
【発明の実施の形態】以下、添付図面を参照しながら本
発明の好適な実施の形態を説明する。Preferred embodiments of the present invention will be described below with reference to the accompanying drawings.
【００１５】図１は、板形熱交換器の原理を示す模式図
である。板形熱交換器１０は、例えばプロピレングリコ
ールのような冷媒が流れる冷媒空間２０と例えば麦汁の
ような被冷却物が流れる被冷却物空間３０とを板(plat
e)４０で仕切った構造を有し、板４０を介して冷媒と被
冷却媒体との間で熱交換が行われる。なお、典型的に
は、多数の冷媒空間２０と被冷却物空間３０とが板３０
で仕切られて交互に配置される。冷媒空間２０には、冷
媒を注入するための注入口２１と冷媒を排出するための
排出口２２が設けられている。また、被冷却物空間３０
には、被冷却物を注入するための注入口３１と被冷却物
を排出するための排出口３２が設けられている。FIG. 1 is a schematic view showing the principle of a plate heat exchanger. The plate heat exchanger 10 includes a cooling medium space 20 in which a refrigerant such as propylene glycol flows and a cooled object space 30 in which a cooled object such as wort flows.
e) It has a structure partitioned by 40, and heat is exchanged between the refrigerant and the medium to be cooled through the plate 40. In addition, typically, a large number of the refrigerant spaces 20 and the object-to-be-cooled space 30 are connected to the plate 30.
Partitioned by and arranged alternately. The refrigerant space 20 is provided with an inlet 21 for injecting the refrigerant and an outlet 22 for discharging the refrigerant. In addition, the cooled object space 30
Is provided with an inlet 31 for injecting the object to be cooled and an outlet 32 for discharging the object to be cooled.
【００１６】図２は、本発明の好適な実施の形態に係る
冷却システムを示す図である。この冷却システムは、前
述のような板形熱交換器１０を含む。板形熱交換器１０
の冷媒空間２０側（図２の左側）には、注入口２１及び
流路６１を介して冷媒（例えば、プロピレングリコー
ル）が供給され、その冷媒は、排出口２２及び流路６２
を介して排出される。一方、板形熱交換器１０の被冷却
物空間３０側（図２の右側）には、注入口３１及び流路
６３を介してポンプＰ１により被冷却物（例えば、麦
汁）が供給され、その被冷却物は、排出口３２及び流路
６４を介して排出（次工程の設備に移送）される。FIG. 2 is a diagram showing a cooling system according to a preferred embodiment of the present invention. The cooling system includes a plate heat exchanger 10 as described above. Plate heat exchanger 10
A coolant (for example, propylene glycol) is supplied to the coolant space 20 side (left side of FIG. 2) of the coolant through the inlet 21 and the flow passage 61, and the coolant is the discharge outlet 22 and the flow passage 62.
Is discharged through. On the other hand, the object to be cooled 30 side (right side in FIG. 2) of the plate heat exchanger 10 is supplied with the object to be cooled (for example, wort) by the pump P1 via the inlet 31 and the flow path 63, The object to be cooled is discharged (transferred to the equipment of the next process) via the discharge port 32 and the flow path 64.
【００１７】被冷却物の冷却時は、制御器７０により、
被冷却物空間３０内の圧力が冷媒空間２０内の圧力より
も所定値以上高くなるようにポンプＰ１が制御される。
これにより、仮に板形熱交換器１０の板４０に穴や亀裂
等の破損部があったとしても、該破損部を通して冷媒空
間２０内の冷媒が被冷却物空間３０内の被冷却物に混入
することを防止することができる。When cooling the object to be cooled, the controller 70 controls
The pump P1 is controlled so that the pressure in the cooled object space 30 becomes higher than the pressure in the refrigerant space 20 by a predetermined value or more.
As a result, even if the plate 40 of the plate heat exchanger 10 has a damaged portion such as a hole or a crack, the refrigerant in the refrigerant space 20 is mixed into the cooled object in the cooled object space 30 through the damaged portion. Can be prevented.
【００１８】板形熱交換器１０に冷媒を供給するための
流路６１には第１バルブＶ１及び流量調整バルブＶ５が
設けられている。流量調整バルブＶ５は、冷却された被
冷却物を移送するための流路６４に設けられた温度セン
サ（例えば、測温抵抗体）５０の出力に基づいて、被冷
却物が所望の温度になるように流路６１を流れる冷媒の
流量を調整する。A first valve V1 and a flow rate adjusting valve V5 are provided in a flow path 61 for supplying a refrigerant to the plate heat exchanger 10. The flow rate adjustment valve V5 has a desired temperature of the object to be cooled, based on the output of a temperature sensor (for example, a resistance temperature detector) 50 provided in the flow path 64 for transferring the cooled object to be cooled. Thus, the flow rate of the refrigerant flowing through the flow path 61 is adjusted.
【００１９】板形熱交換器１０から冷媒を排出するため
の流路６２には第２バルブＶ２が設けられている。ま
た、第２バルブＶ２と板形熱交換器１０の排出口２２と
の間には、第３バルブＶ３が設けられいる。第３バルブ
Ｖ３を介して板形熱交換器１０から排出された冷媒は、
回収タンクＴによって回収され、ポンプＰ２、逆止弁Ｖ
６、第４バルブＶ４を経由して流路６２に戻される。こ
こで、回収タンクＴによって回収された冷媒の量はセン
サ６０によって検知され、その検知結果に基づいて、回
収タンクＴに所定量以上の冷媒が溜まらないようにポン
プＰ２及びバルブＶ４が制御される。A second valve V2 is provided in the flow path 62 for discharging the refrigerant from the plate heat exchanger 10. Further, a third valve V3 is provided between the second valve V2 and the discharge port 22 of the plate heat exchanger 10. The refrigerant discharged from the plate heat exchanger 10 via the third valve V3 is
Recovered by the recovery tank T, pump P2, check valve V
6. Returned to the flow path 62 via the fourth valve V4. Here, the amount of the refrigerant recovered by the recovery tank T is detected by the sensor 60, and the pump P2 and the valve V4 are controlled based on the detection result so that the recovery tank T does not accumulate a predetermined amount or more of the refrigerant. .
【００２０】冷却システムにおいて異常が発生し、これ
に応じて冷却動作を停止させる時（例えば、ポンプＰ１
を停止させる時）は、制御器７０によって、第１バルブ
Ｖ１及び第２バルブＶ２が閉じられ、その後、第３バル
ブＶ３が開かれる。これにより、冷媒空間２０内に冷媒
が満たされた状態で第３バルブＶ３を介して冷媒の一部
が自重及び板形熱交換器１０の冷媒空間２０内の圧力に
より回収タンクＴに排出され、ポンプＰ１が停止した状
態における被冷却物空間３０内の圧力よりも所定値以上
低い圧力まで冷媒空間２０内の圧力が減圧される。ここ
で、第１バルブＶ１及び第２バルブＶ２を閉じた状態で
第３バルブＶ３を開くのは、冷媒空間２０内にエアーが
入ることを防止するためである。また、被冷却物の冷却
が完了し、これに応じて冷却動作を停止させる時も、同
様に、制御器７０によって、第１バルブＶ１及び第２バ
ルブＶ２が閉じられ、その後、第３バルブＶ３が開かれ
る。When an abnormality occurs in the cooling system and the cooling operation is stopped in response to the abnormality (for example, the pump P1
Controller 70, the controller 70 closes the first valve V1 and the second valve V2, and then opens the third valve V3. As a result, part of the refrigerant is discharged to the recovery tank T through the third valve V3 while the refrigerant space 20 is filled with the refrigerant due to its own weight and the pressure in the refrigerant space 20 of the plate heat exchanger 10. The pressure in the refrigerant space 20 is reduced to a pressure lower than the pressure in the object space 30 when the pump P1 is stopped by a predetermined value or more. Here, the reason why the third valve V3 is opened with the first valve V1 and the second valve V2 closed is to prevent air from entering the refrigerant space 20. When the cooling of the object to be cooled is completed and the cooling operation is stopped accordingly, the controller 70 similarly closes the first valve V1 and the second valve V2, and thereafter, the third valve V3. Is opened.
【００２１】この冷却システムでは、停電時にも冷媒空
間２０内の圧力が被冷却物空間３０内の圧力よりも所定
値以上低く維持されることを保証するために、第１バル
ブＶ１及び第２バルブＶ２として、電力が供給されてい
ないときに閉じた状態になるバルブ（Normal close typ
e）が採用され、第３バルブＶ３として、電力が供給さ
れていないときに開いた状態になるバルブ(Normal open
type)が採用されている。In this cooling system, in order to ensure that the pressure in the refrigerant space 20 is kept lower than the pressure in the object space 30 by a predetermined value or more even during a power failure, the first valve V1 and the second valve V1. As V2, a valve that closes when no power is supplied (Normal close typ
e) is adopted, and as the third valve V3, a valve that opens when power is not supplied (Normal open
type) is adopted.
【００２２】図３は、図２に示す冷却システムにおける
制御器７０による制御の流れを示すフローチャートであ
る。FIG. 3 is a flow chart showing the flow of control by the controller 70 in the cooling system shown in FIG.
【００２３】冷却システムに電力が供給されると、すな
わち、冷却システムの電源がオンされると、まず、ステ
ップＳ１０１において、制御器７０は、冷却の開始の指
示を待つ。冷却の開始が指示されると、制御器７０は、
ステップＳ１０２において被冷却物用のポンプＰ１を動
作させて、流路６３を通して被冷却物空間３０に被冷却
物（例えば、麦汁）を供給する。When power is supplied to the cooling system, that is, when the power of the cooling system is turned on, first, in step S101, the controller 70 waits for an instruction to start cooling. When the start of cooling is instructed, the controller 70
In step S102, the object-to-be-cooled pump P1 is operated to supply the object-to-be-cooled (for example, wort) to the object-to-be-cooled space 30 through the passage 63.
【００２４】ステップＳ１０３において制御器７０は第
３バルブＶ３を閉じ、次いで、ステップＳ１０４におい
て制御器７０は第１バルブＶ１及び第２バルブＶ２を開
く。これにより、流路６１を通して板形熱交換器１０の
冷媒空間２０に冷媒が供給される一方、冷媒空間２０か
ら流路６２を通して該冷媒が排出される。In step S103, the controller 70 closes the third valve V3, and then in step S104, the controller 70 opens the first valve V1 and the second valve V2. As a result, the refrigerant is supplied to the refrigerant space 20 of the plate heat exchanger 10 through the flow path 61, while the refrigerant is discharged from the refrigerant space 20 through the flow path 62.
【００２５】次いで、ステップＳ１０５において、制御
器７０は、センサ５０及び第５バルブＶ５による温度制
御を開始させる。具体的には、制御器７０は、センサ５
０の出力に基づく温度制御を開始するように第５バルブ
Ｖ５に対して指令する。第５バルブＶ５の開度は、セン
サ５０の出力に基づいて、被冷却物が目標温度に冷却さ
れるように調整される。Next, in step S105, the controller 70 starts temperature control by the sensor 50 and the fifth valve V5. Specifically, the controller 70 uses the sensor 5
The fifth valve V5 is instructed to start the temperature control based on the output of 0. The opening degree of the fifth valve V5 is adjusted based on the output of the sensor 50 so that the object to be cooled is cooled to the target temperature.
【００２６】このような冷却動作は、冷却の停止が指示
されるまで続けられる。すなわち、制御器７０は、ステ
ップＳ１０６において、冷却動作の停止の指示を待つ。
冷却動作の停止の指示は、例えば、被冷却物の冷却の完
了に応答して、又は、冷却システムの異常が不図示のセ
ンサにより検知されることに応答して、又は、オペレー
タによって与えられうる。Such a cooling operation is continued until it is instructed to stop the cooling. That is, the controller 70 waits for an instruction to stop the cooling operation in step S106.
The instruction to stop the cooling operation may be given, for example, in response to completion of cooling of the object to be cooled, or in response to an abnormality in the cooling system detected by a sensor (not shown), or by an operator. .
【００２７】冷却動作の停止が指示されると、ステップ
Ｓ１０７において、制御器７０は、第１バルブＶ１及び
第２バルブＶ２を閉じ、その後、ステップＳ１０８にお
いて、制御器７０は、センサ５０及び第５バルブＶ５に
よる温度制御を停止させる。When the stop of the cooling operation is instructed, the controller 70 closes the first valve V1 and the second valve V2 in step S107, and then, in step S108, the controller 70 controls the sensor 50 and the fifth valve. The temperature control by the valve V5 is stopped.
【００２８】次いで、制御器７０は、ステップＳ１０９
において第３バルブＶ３を開く。そして、第３バルブＶ
３を通して冷媒の一部が冷媒空間２０から回収タンクＴ
に排出されて冷媒空間２０内の圧力が被冷却物空間３０
内の圧力よりも十分に低くなった後に、制御器７０は、
ステップＳ１１０においてポンプＰ１を停止させる。こ
こで、ポンプＰ１の停止は被冷却物空間３０内の圧力の
低下を伴うので、その低下後の圧力が冷媒空間２０の圧
力よりも高く維持されるように、第３バルブＶ３による
減圧効果が設定されている。The controller 70 then proceeds to step S109.
At, the third valve V3 is opened. And the third valve V
Part of the refrigerant from the refrigerant space 20 through the recovery tank T
And the pressure in the refrigerant space 20 is discharged to the cooled object space 30.
After being sufficiently lower than the pressure within, the controller 70
In step S110, the pump P1 is stopped. Here, since the stop of the pump P1 is accompanied by the decrease of the pressure in the cooled object space 30, the pressure reducing effect by the third valve V3 is maintained so that the pressure after the decrease is maintained higher than the pressure of the refrigerant space 20. It is set.
【００２９】[0029]
【発明の効果】本発明によれば、例えば、板形熱交換器
の板に生じうる穴や亀裂等の破損箇所を通して冷媒が被
冷却物に混入することを防止することができる。According to the present invention, for example, it is possible to prevent the refrigerant from being mixed into the object to be cooled through a damaged portion such as a hole or a crack which may occur in the plate of the plate heat exchanger.
【図面の簡単な説明】[Brief description of drawings]
【図１】板形熱交換器の原理を示す模式図である。FIG. 1 is a schematic diagram showing the principle of a plate heat exchanger.
【図２】本発明の好適な実施の形態に係る冷却システム
を示す図である。FIG. 2 is a diagram showing a cooling system according to a preferred embodiment of the present invention.
【図３】図２に示す冷却システムにおける制御器７０に
よる制御の流れを示すフローチャートである。3 is a flowchart showing a flow of control by a controller 70 in the cooling system shown in FIG.
１０ 板形熱交換器 ２０ 冷媒空間 ３０ 被冷却物空間 10 Plate heat exchanger 20 Refrigerant space 30 Cooled object space
フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ テーマコート゛(参考） Ｆ２５Ｄ 11/00 １０２ Ｆ２５Ｄ 11/00 １０２Ｃ (72)発明者 原田 吉光 兵庫県姫路市飾磨区今在家1351−１ 株式 会社アサヒビールパックス生産サポート部 内 Ｆターム(参考） 3L045 AA02 AA03 BA04 CA01 GA05 JA14 LA03 MA08 MA13 PA03 PA04 PA05 Continuation of front page (51) Int.Cl. 7 Identification code FI theme code (reference) F25D 11/00 102 F25D 11/00 102C (72) Inventor Yoshimitsu Harada 1351-1 Imamaike, Imaike, Himeji-shi, Hyogo Asahi Beer Pax Production Support Department F-term (reference) 3L045 AA02 AA03 BA04 CA01 GA05 JA14 LA03 MA08 MA13 PA03 PA04 PA05
Claims (16)
る被冷却物空間とを板で仕切った板形熱交換器を含む冷
却システムの制御装置であって、 前記冷却システムによる冷却動作の停止時に前記冷媒空
間内の圧力が前記被冷却物空間内の圧力よりも低い状態
に維持されるように前記被冷却物空間内の圧力に対する
前記冷媒空間内の圧力を調整する圧力調整手段を備える
ことを特徴とする冷却システムの制御装置。1. A controller for a cooling system including a plate heat exchanger in which a refrigerant space in which a refrigerant flows and a cooled object space in which an object to be cooled flows are partitioned by plates, wherein a cooling operation by the cooling system is stopped. And a pressure adjusting means for adjusting the pressure in the refrigerant space with respect to the pressure in the cooled object space so that the pressure in the cooled object space is maintained lower than the pressure in the cooled object space. A control device for a cooling system.
じている流路にバルブを有し、前記バルブは、前記冷却
システムによる冷却動作の停止時に開いて前記冷媒空間
内の圧力を低下させることを特徴とする請求項１に記載
の冷却システムの制御装置。2. The pressure adjusting means has a valve in a flow path communicating with the refrigerant space, and the valve is opened when the cooling operation by the cooling system is stopped to reduce the pressure in the refrigerant space. The control device for the cooling system according to claim 1, wherein:
ときに開いた状態になるバルブであることを特徴とする
請求項２に記載の冷却システムの制御装置。3. The control device for the cooling system according to claim 2, wherein the valve is a valve that is opened when electric power is not supplied.
時に前記バルブを通して排出される冷媒を回収する手段
を更に備えることを特徴とする請求項２又は請求項３に
記載の冷却システムの制御装置。4. The cooling system control device according to claim 2, further comprising means for collecting the refrigerant discharged through the valve when the cooling operation by the cooling system is stopped.
ルブと、 前記冷媒空間から冷媒を排出する流路に配置された第２
バルブと、 前記第２のバルブと前記冷媒空間との間に配置された第
３バルブと、 を有し、前記冷却システムによる冷却動作の停止時に、
前記第１及び第２バルブが閉じた状態で、前記第３バル
ブが開いて前記冷媒空間内の圧力を低下させることを特
徴とする請求項１に記載の冷却システムの制御装置。5. The pressure adjusting means includes a first valve arranged in a flow path for supplying a refrigerant to the refrigerant space, and a second valve arranged in a flow path for discharging a refrigerant from the refrigerant space.
A valve and a third valve arranged between the second valve and the refrigerant space, and when the cooling operation by the cooling system is stopped,
The control device of the cooling system according to claim 1, wherein the third valve is opened to reduce the pressure in the refrigerant space when the first and second valves are closed.
されていないときに閉じた状態になるバルブであり、前
記第３バルブは、電力が供給されていないときに開いた
状態になるバルブであることを特徴とする請求項５に記
載の冷却システムの制御装置。6. The first and second valves are valves that are closed when no power is supplied, and the third valve is open when no power is supplied. The control device for the cooling system according to claim 5, wherein the control device is a valve.
時に前記第３バルブを通して排出される冷媒を回収する
手段を更に備えることを特徴とする請求項５又は請求項
６に記載の冷却システムの制御装置。7. The control device for the cooling system according to claim 5, further comprising means for collecting the refrigerant discharged through the third valve when the cooling operation by the cooling system is stopped. .
記冷媒空間内の圧力を前記被冷却物空間内の圧力よりも
低い圧力に維持する手段を更に備えることを特徴とする
請求項１乃至請求項７のいずれか１項に記載の冷却シス
テムの制御装置。8. The device according to claim 1, further comprising means for maintaining a pressure in the refrigerant space at a pressure lower than a pressure in the object space during a cooling operation by the cooling system. The control device for the cooling system according to any one of 1.
の異常が発生した時を含むことを特徴とする請求項１乃
至請求項８のいずれか１項に記載の冷却システムの制御
装置。9. The controller of the cooling system according to claim 1, wherein the stop of the cooling operation includes a time when an abnormality of the cooling operation occurs.
むことを特徴とする請求項１乃至請求項８のいずれか１
項に記載の冷却システムの制御装置。10. The method according to claim 1, wherein the stop of the cooling operation includes a power failure.
The control device for the cooling system according to the item.
作の終了時を含むことを特徴とする請求項１乃至請求項
８のいずれか１項に記載の冷却システムの制御装置。11. The controller of the cooling system according to claim 1, wherein the stop of the cooling operation includes the end of the cooling operation.
を含むことを特徴とする請求項１乃至請求項１１のいず
れか１項に記載の冷却システムの制御装置。12. The cooling system control device according to claim 1, wherein the object to be cooled includes a beverage or an intermediate product thereof.
とを板で仕切った板形熱交換器と、 前記板形熱交換機による冷却動作の停止時に前記冷媒空
間内の圧力が前記被冷却物空間内の圧力よりも低い状態
に維持されるように前記被冷却物空間内の圧力に対する
前記冷媒空間内の圧力を調整する圧力調整手段と、 を備えることを特徴とする冷却システム。13. A cooling system, comprising: a plate heat exchanger in which a refrigerant space in which a refrigerant flows and a cooled object space in which an object to be cooled flows are separated by a plate; and when the cooling operation by the plate heat exchanger is stopped. Pressure adjusting means for adjusting the pressure in the refrigerant space with respect to the pressure in the cooled object space so that the pressure in the cooled object space is maintained lower than the pressure in the cooled object space. A cooling system characterized by the above.
を含むことを特徴とする請求項１３に記載の冷却システ
ム。14. The cooling system according to claim 13, wherein the object to be cooled includes a beverage or an intermediate product thereof.
れる被冷却物空間とを板で仕切った板形熱交換器を含む
冷却システムの制御方法であって、 前記冷却システムによる冷却動作の停止時に前記冷媒空
間内の圧力が前記被冷却物空間内の圧力よりも低い状態
に維持されるように前記被冷却物空間内の圧力に対する
前記冷媒空間内の圧力を調整することを特徴とする冷却
システムの制御方法。15. A method for controlling a cooling system including a plate heat exchanger in which a refrigerant space in which a refrigerant flows and a cooled object space in which a cooled object flows are partitioned by plates, wherein the cooling operation by the cooling system is stopped. Cooling characterized by adjusting the pressure in the refrigerant space with respect to the pressure in the cooled object space so that the pressure in the cooled object space is sometimes maintained lower than the pressure in the cooled object space. How to control the system.
を含むことを特徴とする請求項１５に記載の冷却システ
ムの制御方法。16. The method for controlling a cooling system according to claim 15, wherein the object to be cooled includes a beverage or an intermediate product thereof.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001294613A JP4727873B2 (en) | 2001-09-26 | 2001-09-26 | Cooling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001294613A JP4727873B2 (en) | 2001-09-26 | 2001-09-26 | Cooling system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2003106714A true JP2003106714A (en) | 2003-04-09 |
| JP4727873B2 JP4727873B2 (en) | 2011-07-20 |
Family
ID=19116184
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001294613A Expired - Fee Related JP4727873B2 (en) | 2001-09-26 | 2001-09-26 | Cooling system |
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| Country | Link |
|---|---|
| JP (1) | JP4727873B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012037197A (en) * | 2010-08-11 | 2012-02-23 | Miura Co Ltd | Heat pump type steam generator |
| JP2014514522A (en) * | 2011-03-17 | 2014-06-19 | ネステク ソシエテ アノニム | System and method for heat exchange |
| CN110423655A (en) * | 2019-08-09 | 2019-11-08 | 合肥欧力杰工程技术有限公司 | A kind of Wort cooling plate heat exchanger device for preventing leakage and its application method |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6155597A (en) * | 1984-08-28 | 1986-03-20 | Ebara Corp | Heat recovery device |
| JPH05118728A (en) * | 1991-10-24 | 1993-05-14 | Mitsubishi Heavy Ind Ltd | Supercooler for supercooled water manufacturing device |
| JPH0949664A (en) * | 1995-08-08 | 1997-02-18 | Daikin Ind Ltd | Apparatus and method for detecting mixed refrigerant composition ratio of refrigerating machine and controller therefor |
| JPH10262627A (en) * | 1997-03-21 | 1998-10-06 | Hisaka Works Ltd | Sterilizer |
| JPH1183207A (en) * | 1997-09-12 | 1999-03-26 | Mitsubishi Heavy Ind Ltd | Air conditioner |
| JP2000179958A (en) * | 1998-12-16 | 2000-06-30 | Matsushita Electric Ind Co Ltd | Air conditioner |
| JP2000279157A (en) * | 1999-03-30 | 2000-10-10 | Asahi Breweries Ltd | System and method for cooling thermally processing liquid |
| JP2000317453A (en) * | 1999-05-11 | 2000-11-21 | Sanyo Electric Co Ltd | Alkaline ionized water production device provided with water cooling function |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IL107850A0 (en) * | 1992-12-07 | 1994-04-12 | Multistack Int Ltd | Improvements in plate heat exchangers |
-
2001
- 2001-09-26 JP JP2001294613A patent/JP4727873B2/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6155597A (en) * | 1984-08-28 | 1986-03-20 | Ebara Corp | Heat recovery device |
| JPH05118728A (en) * | 1991-10-24 | 1993-05-14 | Mitsubishi Heavy Ind Ltd | Supercooler for supercooled water manufacturing device |
| JPH0949664A (en) * | 1995-08-08 | 1997-02-18 | Daikin Ind Ltd | Apparatus and method for detecting mixed refrigerant composition ratio of refrigerating machine and controller therefor |
| JPH10262627A (en) * | 1997-03-21 | 1998-10-06 | Hisaka Works Ltd | Sterilizer |
| JPH1183207A (en) * | 1997-09-12 | 1999-03-26 | Mitsubishi Heavy Ind Ltd | Air conditioner |
| JP2000179958A (en) * | 1998-12-16 | 2000-06-30 | Matsushita Electric Ind Co Ltd | Air conditioner |
| JP2000279157A (en) * | 1999-03-30 | 2000-10-10 | Asahi Breweries Ltd | System and method for cooling thermally processing liquid |
| JP2000317453A (en) * | 1999-05-11 | 2000-11-21 | Sanyo Electric Co Ltd | Alkaline ionized water production device provided with water cooling function |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012037197A (en) * | 2010-08-11 | 2012-02-23 | Miura Co Ltd | Heat pump type steam generator |
| JP2014514522A (en) * | 2011-03-17 | 2014-06-19 | ネステク ソシエテ アノニム | System and method for heat exchange |
| JP2016040514A (en) * | 2011-03-17 | 2016-03-24 | ネステク ソシエテ アノニム | System and method for heat exchange |
| CN110423655A (en) * | 2019-08-09 | 2019-11-08 | 合肥欧力杰工程技术有限公司 | A kind of Wort cooling plate heat exchanger device for preventing leakage and its application method |
| CN110423655B (en) * | 2019-08-09 | 2024-02-27 | 合肥欧力杰智能装备系统有限公司 | Leakage-proof device of wort cooling plate type heat exchanger and use method thereof |
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|---|---|
| JP4727873B2 (en) | 2011-07-20 |
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