JP6342771B2 - Cooling system - Google Patents

Cooling system Download PDF

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JP6342771B2
JP6342771B2 JP2014203367A JP2014203367A JP6342771B2 JP 6342771 B2 JP6342771 B2 JP 6342771B2 JP 2014203367 A JP2014203367 A JP 2014203367A JP 2014203367 A JP2014203367 A JP 2014203367A JP 6342771 B2 JP6342771 B2 JP 6342771B2
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cooling water
cooling
coolant
beverage
tank
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友裕 高木
友裕 高木
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HOSHIZAKI KABUSHIKI KAISHA
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Description

本発明は、冷却液槽から冷却液循環管路に送り出される冷却液によって外部の被冷却物を冷却するようにした冷却装置に関する。   The present invention relates to a cooling device that cools an external object to be cooled with a coolant sent from a coolant tank to a coolant circulation pipe.

特許文献１には飲料供給装置が開示されており、この飲料供給装置は飲料冷却装置と飲料冷却装置から離れた位置に設置した飲料注出装置とを備え、飲料冷却装置により冷却した飲料を飲料注出装置の注出コックから注出するものである。飲料冷却装置は冷却水を貯える冷却水槽内に冷凍装置の蒸発管とを備え、冷凍装置の作動によって蒸発管の周囲に氷を形成させて冷却水を冷却するようにしている。また、飲料冷却装置は冷却水槽内にコイル状の飲料冷却管を備え、飲料冷却管を通過させて冷却した飲料を冷却飲料供給管によって飲料注出装置の注出コックに送るようにしている。   Patent Document 1 discloses a beverage supply device, which includes a beverage cooling device and a beverage dispensing device installed at a position away from the beverage cooling device, and drinks the beverage cooled by the beverage cooling device. It is dispensed from the dispensing cock of the dispensing device. The beverage cooling device includes a cooling water tank for storing cooling water and an evaporation pipe of a refrigeration apparatus, and ice is formed around the evaporation pipe by the operation of the refrigeration apparatus to cool the cooling water. In addition, the beverage cooling device includes a coiled beverage cooling pipe in the cooling water tank, and the beverage cooled by passing through the beverage cooling pipe is sent to the dispensing cock of the beverage dispensing apparatus through the cooling beverage supply pipe.

この飲料供給装置では、飲料注出装置の注出コックの内部に滞留する飲料が室温によって温められるのを防ぐために、注出コックには冷却水槽内の冷却水を循環させる冷却水供給管と冷却水戻し管とからなる冷却水循環管路が接続されている。冷却水供給管に介装したポンプを駆動させると、冷却水槽内の冷却水は冷却水供給管を通って注出コックの外周部に送られ、送られた冷却水によって注出コック内の飲料を冷却して冷却水戻し管によって再び冷却水槽内に戻される。   In this beverage supply device, a cooling water supply pipe that circulates the cooling water in the cooling water tank and the cooling water are supplied to the dispensing cock in order to prevent the beverage staying inside the dispensing cock of the beverage dispensing device from being warmed by the room temperature. A cooling water circulation line composed of a water return pipe is connected. When the pump interposed in the cooling water supply pipe is driven, the cooling water in the cooling water tank is sent to the outer periphery of the pouring cock through the cooling water supply pipe, and the beverage in the pouring cock is sent by the sent cooling water. Is cooled and returned to the cooling water tank again by the cooling water return pipe.

特許第４８９７５２２号公報Japanese Patent No. 4897522

特許文献１に記載の飲料供給装置においては、冷却水槽内の冷却水を冷却水供給管により注出コックに送出するようにし、注出コックに送出した冷却水を冷却水戻し管によって冷却水槽に戻している。冷却水戻し管の冷却水槽への戻し口は、冷却水槽の冷却水の水面より上側に設けられていたため、冷却水戻し管の戻し口から放出される冷却水が冷却水槽の冷却水の水面にぶつかり、冷却水が周囲に飛散する問題があった。これに対応するために、冷却水戻し管の戻し口を冷却水槽の冷却水の水面より下側となるように、冷却水戻し管の戻し口側端部を冷却水の上側から冷却水中に入るように配設すれば、冷却水が周囲に飛散するのを防ぐことができる。   In the beverage supply device described in Patent Document 1, the cooling water in the cooling water tank is sent to the pouring cock by the cooling water supply pipe, and the cooling water sent to the pouring cock is sent to the cooling water tank by the cooling water return pipe. It is returning. Since the return port to the cooling water tank of the cooling water return pipe was provided above the water level of the cooling water tank, the cooling water discharged from the cooling water return pipe returned to the cooling water level of the cooling water tank. There was a problem that the cooling water splashed around. In order to cope with this, the return port side end of the cooling water return pipe enters the cooling water from the upper side of the cooling water so that the return port of the cooling water return pipe is located below the cooling water surface of the cooling water tank. If it arrange | positions in this way, it can prevent that cooling water disperses around.

冷却水戻し管の戻し口を冷却水槽の冷却水の水面より下側に配置した場合では、飲食店等の営業時間外に注出コックを冷却する必要がなくてポンプを停止させたときに、冷却水槽内の撹拌装置によって生じる冷却水の水流や、冷却水循環管路内の冷却水と冷却水槽内の冷却水との温度差から、冷却水槽内に冷却水供給管から冷却水を吸い上げる流れが発生することで、冷却水槽内の冷却水が冷却水戻し管の戻し口から逆流し、冷却水槽内の冷却水が冷却水戻し管と冷却水供給管とを逆流して循環することがあった。ポンプの駆動を停止させたにもかかわらず、冷却水槽内の冷却水が冷却水戻し管と冷却水供給管とを逆流して循環すると、冷却水槽内の冷却水の温度が外部を循環した冷却水によって上昇し、冷凍装置の稼働率が上昇してランニングコストが上昇する新たな問題が発生することになった。本発明は、冷却液槽内の冷却液をポンプの駆動によって冷却液循環管路の送出側部から被冷却物に向けて送出し、送出側部から送出された冷却液を冷却液循環管路の戻し側部によって再び冷却液槽に戻して、循環する冷却液によって被冷却物を冷却する冷却装置において、ポンプの駆動を停止させたときに、冷却液循環管路の戻し側部から冷却液が逆流して、冷却液槽内の冷却液の温度が意図せずに上昇するのを防ぐことをるのを防ぐことを目的とする。   In the case where the return port of the cooling water return pipe is arranged below the cooling water surface of the cooling water tank, when the pump is stopped without cooling the pouring cock outside the business hours of restaurants and the like, From the cooling water flow generated by the stirring device in the cooling water tank and the temperature difference between the cooling water in the cooling water circulation pipe and the cooling water in the cooling water tank, there is a flow of sucking the cooling water from the cooling water supply pipe into the cooling water tank. As a result, the cooling water in the cooling water tank may flow backward from the return port of the cooling water return pipe, and the cooling water in the cooling water tank may circulate in a reverse flow through the cooling water return pipe and the cooling water supply pipe. . When the cooling water in the cooling water tank circulates back and forth through the cooling water return pipe and the cooling water supply pipe despite the pump driving being stopped, the cooling water temperature in the cooling water tank circulates outside. A new problem arises that the running cost increases due to an increase in the operating rate of the refrigeration system due to an increase in water. In the present invention, the cooling liquid in the cooling liquid tank is sent from the sending side part of the cooling liquid circulation line toward the object to be cooled by driving the pump, and the cooling liquid sent from the sending side part is sent to the cooling liquid circulation line. In the cooling device that returns to the coolant tank again by the return side portion of the coolant and cools the object to be cooled by the circulating coolant, when the pump is stopped, the coolant is returned from the return side portion of the coolant circulation line. The purpose of this is to prevent reverse flow and prevent the temperature of the coolant in the coolant tank from rising unintentionally.

本発明は上記課題を解決するため、冷却液を貯えた冷却液槽と、冷却液槽内の冷却液を外部の被冷却物に向けて送出する送出側部と、送出側部から送出された冷却液を冷却液槽に戻す戻し側部とを有した冷却液循環管路と、冷却液循環管路に介装されて冷却液槽内の冷却液を冷却液循環管路に送り出すポンプとを備え、冷却液循環管路の戻し側部は冷却液の戻し口が冷却液槽内の冷却液中に配置されるように、冷却液の戻し口側端部を冷却液槽内の冷却液の上側から冷却液中に配設するようにした冷却装置であって、戻し口側端部には冷却液槽の冷却液の液面より上側に貫通孔を形成したことを特徴とする冷却装置を提供するものである。   In order to solve the above-mentioned problems, the present invention provides a cooling liquid tank that stores a cooling liquid, a sending side part that sends the cooling liquid in the cooling liquid tank toward an external object to be cooled, and the sending side part. A cooling liquid circulation line having a return side portion for returning the cooling liquid to the cooling liquid tank, and a pump which is interposed in the cooling liquid circulation pipe and sends out the cooling liquid in the cooling liquid tank to the cooling liquid circulation pipe. Provided, the return side portion of the coolant circulation pipe line is arranged so that the return port of the coolant is disposed in the coolant in the coolant tank, and the end portion of the coolant return port is disposed in the coolant tank. A cooling device arranged in the coolant from the upper side, wherein a through hole is formed above the coolant surface of the coolant tank at the end on the return port side. It is to provide.

上記のように構成した冷却装置においては、ポンプを駆動させたときに、冷却液槽内の冷却液が送出側部を通って被冷却物に向けて送出され、送出側部から送出された冷却液を戻し側部によって冷却液槽に戻すようにしている。ポンプの駆動を停止させると、冷却液槽内の冷却液が送出側部から戻し側部に送出されなくなるとともに、冷却液循環管路の戻し側部に残る冷却液の一部は戻し側部の貫通孔から流入する空気によって戻し口から冷却液槽内に放出され、戻し側部には冷却液槽の冷却液の上側に冷却液がない状態となる。これにより、冷却液槽内に冷却液循環管路の送出側部から冷却液を吸い上げる流れが発生しても、冷却液循環管路の戻し側部から冷却液が吸い上げられないようになり、ポンプの駆動停止時に、冷却液槽内の冷却液が冷却液循環管路を逆流するのを防ぐことができた。   In the cooling device configured as described above, when the pump is driven, the cooling liquid in the cooling liquid tank is sent out toward the object to be cooled through the sending side part, and is sent from the sending side part. The liquid is returned to the cooling liquid tank by the return side portion. When the driving of the pump is stopped, the cooling liquid in the cooling liquid tank is not sent out from the sending side part to the returning side part, and a part of the cooling liquid remaining on the returning side part of the cooling liquid circulation pipe is in the returning side part. The air flowing from the through hole is discharged from the return port into the cooling liquid tank, and the cooling liquid is not present on the return side portion above the cooling liquid in the cooling liquid tank. This prevents the coolant from being sucked up from the return side of the coolant circulation pipe even if a flow of sucking up the coolant from the delivery side of the coolant circulation pipe occurs in the coolant tank. It was possible to prevent the cooling liquid in the cooling liquid tank from flowing back through the cooling liquid circulation line when the drive was stopped.

上記のように構成した冷却装置においては、戻し口側端部の外側には貫通孔と対向する位置を隙間をあけて覆うカバーを設けるのが好ましく、このようにしたときには、ポンプを駆動させているときに貫通孔から噴射される冷却液はカバーによって周囲に飛散すること、または、冷却液の液面に直接噴射されるときに生じる飛沫が飛散することを防ぐことができた。   In the cooling apparatus configured as described above, it is preferable to provide a cover that covers the position facing the through hole with a gap on the outside of the end portion on the return port side. It was possible to prevent the coolant sprayed from the through-holes from being scattered to the surroundings by the cover or splashing generated when sprayed directly onto the coolant surface.

本発明による冷却装置の一実施形態である飲料冷却装置を用いた飲料供給装置の概略図である。It is the schematic of the drink supply apparatus using the drink cooling device which is one Embodiment of the cooling device by this invention. 図１の飲料冷却装置の冷却水槽の上部を示した概略図である。It is the schematic which showed the upper part of the cooling water tank of the drink cooling device of FIG.

以下に、本発明による冷却装置の一実施形態である飲料冷却装置を用いた飲料供給装置を図面を参照して説明する。図１に示したように、飲料供給装置１０は、飲食店等で用いられるものであり、飲食店等のカウンターの下側に飲料冷却装置（冷却装置）２０と、飲料冷却装置２０から離れた位置として該カウンターの上面に設置した飲料注出装置３１とを備えている。飲料冷却装置２０はハウジング２１内に冷却水（冷却液）を貯える冷却水槽（冷却液槽）２２と、冷却水槽２２内の冷却液を冷却する冷凍装置２５とを備えている。冷却水槽２２内には飲料を冷却する螺旋状の飲料冷却管２３が設けられている。飲料冷却管２３の導入端部にはハウジング２１の外部に設けたビア樽等の飲料容器から導出した飲料管（いずれも図示省略）が接続され、導出端部には飲料注出装置３１の注出コック３２に飲料を送出する飲料送出管３３が接続されている。   Below, the drink supply apparatus using the drink cooling device which is one Embodiment of the cooling device by this invention is demonstrated with reference to drawings. As shown in FIG. 1, the beverage supply device 10 is used in a restaurant or the like, and is separated from the beverage cooling device (cooling device) 20 and the beverage cooling device 20 on the lower side of a counter of the restaurant or the like. A beverage dispensing device 31 installed on the upper surface of the counter is provided as a position. The beverage cooling apparatus 20 includes a cooling water tank (cooling liquid tank) 22 that stores cooling water (cooling liquid) in a housing 21 and a refrigeration apparatus 25 that cools the cooling liquid in the cooling water tank 22. A spiral beverage cooling pipe 23 for cooling the beverage is provided in the cooling water tank 22. A beverage pipe (not shown) led out from a beverage container such as a beer barrel provided outside the housing 21 is connected to the introduction end of the beverage cooling pipe 23, and the beverage dispensing device 31 is poured into the delivery end. A beverage delivery pipe 33 for delivering beverages is connected to the outlet cock 32.

冷却水槽２２には冷却水を撹拌する撹拌装置２４が設けられている。撹拌装置２４は冷却水槽２２の上縁に架設した支持板の上面に撹拌モータ２４ａを備えており、撹拌モータ２４ａにより回転する回転軸２４ｂの先端部には撹拌羽根２４ｃが固定されている。撹拌モータ２４ａにより回転軸２４ｂを回転させると、回転軸２４ｂの先端部の撹拌羽根２４ｃが回転し、冷却水槽２２内の冷却水は回転する撹拌羽根２４ｃによって撹拌される。   The cooling water tank 22 is provided with a stirring device 24 for stirring the cooling water. The stirring device 24 includes a stirring motor 24a on the upper surface of a support plate installed on the upper edge of the cooling water tank 22, and a stirring blade 24c is fixed to the tip of a rotating shaft 24b rotated by the stirring motor 24a. When the rotating shaft 24b is rotated by the stirring motor 24a, the stirring blade 24c at the tip of the rotating shaft 24b rotates, and the cooling water in the cooling water tank 22 is stirred by the rotating stirring blade 24c.

冷凍装置２５は、冷媒を圧縮する圧縮機と、圧縮した冷媒ガスを冷却する凝縮器と、液化冷媒を膨張させるキャピラリチューブ（何れも図示省略）と、冷却水槽２２の内周面に螺旋状に巻回されて膨張させた液化冷媒を気化させて冷却水を冷却する蒸発管２５ａとからなり、これらを連結して冷媒が循環する冷媒回路を構成している。冷凍装置２５は、冷媒回路の冷媒を循環させることにより、冷却水槽２２内にて蒸発管２５ａの周囲の冷却水を冷却し、蒸発管２５ａの周囲に所定の厚みの氷層を形成している。なお、蒸発管２５ａの周囲には所定の厚みの氷を検知するための氷厚センサ（図示省略）が設けられており、冷凍装置２５は氷厚センサの検知に基づいて蒸発器２５ａに所定の厚みの氷層が形成されるように制御されている。   The refrigeration apparatus 25 includes a compressor that compresses the refrigerant, a condenser that cools the compressed refrigerant gas, a capillary tube that expands the liquefied refrigerant (both not shown), and a spiral on the inner peripheral surface of the cooling water tank 22. The refrigerant circuit is composed of an evaporation pipe 25a that evaporates and expands the liquefied refrigerant that has been wound up and cools the cooling water. The refrigeration apparatus 25 cools the cooling water around the evaporation pipe 25a in the cooling water tank 22 by circulating the refrigerant in the refrigerant circuit, and forms an ice layer having a predetermined thickness around the evaporation pipe 25a. . An ice thickness sensor (not shown) for detecting ice having a predetermined thickness is provided around the evaporation pipe 25a, and the refrigeration apparatus 25 supplies a predetermined thickness to the evaporator 25a based on the detection of the ice thickness sensor. It is controlled to form a thick ice layer.

飲料冷却装置２０は飲料注出装置３１の注出コック３２に冷却水槽２２内の冷却水を循環させて冷却する冷却水循環管路（冷却液循環管路）２６を備えている。冷却水循環管路２６は、飲料冷却装置２０（冷却水槽２２）の外部となる注出コック３２内を通過する飲料を冷却するためのものであり、冷却水槽２２内の冷却水を外部となる飲料注出装置３１の注出コック３２（被冷却物）に向けて送出する送出側部２７と、送出側部２７から送出された冷却水を冷却液槽２２に戻す戻し側部２８とを有している。また、冷却水循環管路２６の送出側部２７及び戻し側部２８は飲料送出管３３とともに束ねられており、これら送出側部２７、戻し側部２８及び飲料送出管３３は断熱材３４によって覆われている。飲料送出管３３によって飲料冷却管２３から注出コック３２に送られる飲料は冷却水循環管路２６の送出側部２７と戻し側部２８とを循環する冷却水によって室温で温められないようになっている。   The beverage cooling apparatus 20 includes a cooling water circulation pipe (cooling liquid circulation pipe) 26 that circulates the cooling water in the cooling water tank 22 through the dispensing cock 32 of the beverage dispensing apparatus 31 and cools it. The cooling water circulation pipe 26 is for cooling the beverage passing through the pouring cock 32 that is outside the beverage cooling device 20 (cooling water tank 22), and the cooling water in the cooling water tank 22 is used as the outside beverage. It has a delivery side portion 27 that sends out toward the dispensing cock 32 (object to be cooled) of the dispensing device 31, and a return side portion 28 that returns the cooling water sent from the delivery side portion 27 to the coolant tank 22. ing. Further, the delivery side portion 27 and the return side portion 28 of the cooling water circulation pipe 26 are bundled together with the beverage delivery tube 33, and the delivery side portion 27, the return side portion 28 and the beverage delivery tube 33 are covered with a heat insulating material 34. ing. The beverage sent from the beverage cooling pipe 23 to the dispensing cock 32 by the beverage delivery pipe 33 is prevented from being heated at room temperature by the cooling water circulating through the delivery side part 27 and the return side part 28 of the cooling water circulation pipe 26. Yes.

冷却水循環管路２６の送出側部２７は導入端部が冷却水槽２２の底部に接続され、導出端部が注出コック３２の外周部に接続されている（図示省略）。冷却水循環管路２６の送出側部２７には導入端部の近傍にポンプ２９が介装されており、ポンプ２９は冷却水槽２２内の冷却水を冷却水循環管路２６に送り出すものである。   The delivery side 27 of the cooling water circulation pipe 26 has an introduction end connected to the bottom of the cooling water tank 22 and a lead-out end connected to the outer periphery of the pouring cock 32 (not shown). A pump 29 is interposed in the vicinity of the introduction end on the delivery side portion 27 of the cooling water circulation pipe 26, and the pump 29 sends out the cooling water in the cooling water tank 22 to the cooling water circulation pipe 26.

冷却水循環管路２６の戻し側部２８は導入端部が注出コック３２の外周部に接続され（図示省略）、戻し口側端部２８ａが冷却水槽２２の上部に接続されている。戻し側部２８は注出コック３２を介して送出側部２７は接続され、冷却水循環管路２６の送出側部２７から送出された冷却水は戻し側部２８を通って冷却水槽２２に戻される。戻し側部２８の冷却水の戻し口側端部２８ａは冷却水槽２２の冷却水の上側を通って下側に折り曲げられて冷却水中に配設され、戻し口側端部２８ａの先端の戻し口２８ｂは冷却水槽２２内の冷却水中に配置されている。戻し側部２８の戻し口２８ｂが冷却水槽２２内の冷却水中に配置されていることで、戻し口２８ｂから冷却水槽２２内に戻される冷却水は冷却水槽２２内の冷却水の水面にぶつかることなく、冷却水が周囲に飛散しないようになっている。   The return side portion 28 of the cooling water circulation pipe 26 is connected to the outer peripheral portion of the pouring cock 32 (not shown), and the return port side end portion 28 a is connected to the upper portion of the cooling water tank 22. The return side portion 28 is connected to the delivery side portion 27 via the pouring cock 32, and the cooling water sent from the delivery side portion 27 of the cooling water circulation pipe 26 is returned to the cooling water tank 22 through the return side portion 28. . The cooling water return port side end portion 28a of the return side portion 28 passes through the upper side of the cooling water of the cooling water tank 22 and is bent downward to be disposed in the cooling water, and the return port at the tip of the return port side end portion 28a. 28 b is arranged in the cooling water in the cooling water tank 22. Since the return port 28 b of the return side portion 28 is arranged in the cooling water in the cooling water tank 22, the cooling water returned from the return port 28 b to the cooling water tank 22 collides with the surface of the cooling water in the cooling water tank 22. The cooling water is not scattered around.

戻し口側端部２８ａには冷却水槽２２の冷却水の水面（液面）より上側に貫通孔２８ｃが形成されており、この貫通孔２８ｃは戻し口側端部２８ａの下側となる冷却水槽２２の冷却水の水面側を向いている。貫通孔２８ｃはポンプ２９の駆動を停止させているときに、戻し側部２８に空気を流入させて冷却水を戻し口２８ｂから冷却水槽２２内に放出させ、戻し口側端部２８ａ内に冷却水槽２２の冷却水の水面より上側に冷却水がないようにすることを目的としたものである。戻し側部２８の戻し口側端部２８ａの外側には貫通孔２８ｃと対向する位置にカバー３０が設けられている。カバー３０は戻し口側端部２８ａを通過する冷却水が貫通孔２８ｃから冷却水槽２２の冷却水の水面に直接噴射されるのを防ぐためのものである。カバー３０は冷却水循環管路２６の戻し側部２８の戻し口側端部２８ａの外径より隙間が形成される程度に大きな内径をした円筒形部材であり、戻し口側端部２８ａの貫通孔２８ｃと対向する位置を隙間をあけて覆っている。   A through hole 28c is formed in the return port side end portion 28a above the water surface (liquid level) of the cooling water in the cooling water tank 22. The through hole 28c is a cooling water tank below the return port side end portion 28a. It faces the water surface side of 22 cooling water. When the driving of the pump 29 is stopped, the through-hole 28c causes air to flow into the return side portion 28 to discharge the cooling water from the return port 28b into the cooling water tank 22, and to cool into the return port side end portion 28a. The purpose is to prevent the cooling water from being above the surface of the cooling water in the water tank 22. A cover 30 is provided outside the return port side end portion 28a of the return side portion 28 at a position facing the through hole 28c. The cover 30 is for preventing the cooling water passing through the return port side end portion 28a from being directly jetted from the through hole 28c onto the cooling water surface of the cooling water tank 22. The cover 30 is a cylindrical member having an inner diameter that is larger than the outer diameter of the return port side end portion 28a of the return side portion 28 of the cooling water circulation pipe 26, and has a through hole in the return port side end portion 28a. The position facing 28c is covered with a gap.

上記のように構成した飲料供給装置１０の作動について説明する。飲料供給装置１０の飲料冷却装置２０では、冷凍装置２５の作動によって冷却水槽２２内の冷却水は蒸発管２５ａの周囲で徐々に冷却され、蒸発管２５ａの周囲に所定の厚みの氷層が形成される。また、撹拌装置２４の撹拌モータ２４ａの駆動によって撹拌羽根２４ｃが冷却水槽２２内で回転し、冷却水槽２２内の冷却水は図１の矢印に示したような水流を発生させ、蒸発管２５ａの周囲に均一な厚みの氷層を形成させるとともに、飲料冷却管２３を通過する飲料と冷却水との熱交換の効率を高めるようにしている。さらに、ハウジング１１内に設けたポンプ２９の駆動によって、冷却水槽２２内の冷却水は冷却水循環管路２６の送出側部２７を通って注出コック３２に向けて送出され、送出された冷却水は戻し側部２８を通って冷却水槽２２内に戻される。冷却水槽２２内の冷却水は冷却水循環管路２６を循環することによって注出コック３２内の飲料が室温によって温められるのを防いでいる。   The operation of the beverage supply device 10 configured as described above will be described. In the beverage cooling device 20 of the beverage supply device 10, the cooling water in the cooling water tank 22 is gradually cooled around the evaporation pipe 25a by the operation of the freezing device 25, and an ice layer having a predetermined thickness is formed around the evaporation pipe 25a. Is done. Further, the stirring blade 24c is rotated in the cooling water tank 22 by driving the stirring motor 24a of the stirring device 24, and the cooling water in the cooling water tank 22 generates a water flow as shown by the arrow in FIG. An ice layer having a uniform thickness is formed around the periphery, and the efficiency of heat exchange between the beverage passing through the beverage cooling pipe 23 and the cooling water is increased. Further, by driving a pump 29 provided in the housing 11, the cooling water in the cooling water tank 22 is sent out toward the pouring cock 32 through the sending side portion 27 of the cooling water circulation pipe 26 and sent out. Is returned to the cooling water tank 22 through the return side portion 28. The cooling water in the cooling water tank 22 circulates through the cooling water circulation pipe 26 to prevent the beverage in the dispensing cock 32 from being warmed by the room temperature.

冷却水槽２２内の飲料冷却管２３には炭酸ガスボンベ（図示しない）から供給される炭酸ガスの圧力が加えられた状態のビア樽等の飲料容器（図示しない）が接続されており、飲料注出装置３１の注出コック３２の操作レバーを操作すると、ビア樽等の飲料容器から炭酸ガスの圧力により押し出された飲料が飲料冷却管２３と飲料送出管３３とを通って注出コック３２から注出される。このとき、飲料冷却管２３を通過する飲料は冷却水槽２２内の冷却水と熱交換して冷却され、また、飲料送出管３３と注出コック３２とを通過する飲料は冷却水循環管路２６を循環する冷却水によって室温に温められないようなっている。   The beverage cooling pipe 23 in the cooling water tank 22 is connected to a beverage container (not shown) such as a beer barrel in a state where the pressure of carbon dioxide gas supplied from a carbon dioxide cylinder (not shown) is applied. When the operation lever of the pouring cock 32 of the device 31 is operated, the beverage pushed out from the beverage container such as a beer barrel by the pressure of carbon dioxide gas is poured from the pouring cock 32 through the beverage cooling pipe 23 and the beverage delivery pipe 33. Is issued. At this time, the beverage passing through the beverage cooling pipe 23 is cooled by exchanging heat with the cooling water in the cooling water tank 22, and the beverage passing through the beverage delivery pipe 33 and the dispensing cock 32 passes through the cooling water circulation pipe 26. The circulating cooling water prevents it from warming to room temperature.

上記のように構成した飲料供給装置１０においては、飲食店等の営業時間中に、飲料冷却装置２０の冷却水循環管路２６のポンプ２９を駆動させることで、冷却水槽２２内の冷却水を送出側部２７を通して注出コック３２に向けて送出するようにし、送出側部２７から送出された冷却水を戻し側部２８によって冷却液槽２２に戻すようにし、注出コック３２の内部に滞留する飲料を冷却するようにしている。飲食店等の営業時間外となると、注出コック３２の内部に滞留する飲料を冷却する必要がないので、冷却水循環管路２６のポンプ２９の駆動を停止させ、飲料冷却装置２０の冷却水槽２２内の冷却水の温度の上昇を抑制させ、冷凍装置２５の稼働率を低くしてランニングコストの増加を防ぐようにする。冷却水循環管路２６のポンプ２９の駆動を停止させると、冷却液槽２２内の冷却水が送出側部２７から戻し側部２８も送出されなくなるとともに、冷却液循環管路２６の戻し側部２８に残る冷却水の一部は戻し側部２８の貫通孔２８ｃから流入する空気によって戻し口２８ｂから冷却水槽２２内に放出され、戻し側部２８には冷却水槽２２の冷却水の上側に冷却水がない状態となる。これにより、冷却水槽２２内で撹拌装置２４による冷却水の水流や、冷却水槽２２内の冷却水と冷却水循環管路２６の冷却水との温度差によって生じる水流により、冷却水槽２２内に冷却液循環管路２６の送出側部２７から冷却水を吸い上げる流れが発生しても、冷却液循環管路２６の戻し側部２８から冷却水が吸い上げられなくなり、ポンプ２９の駆動停止時に、冷却水槽２２内の冷却水が冷却水循環管路２６を逆流するのを防ぐことができた。この結果、冷却水循環管路２６のポンプ２９の駆動を停止させたときに、飲料冷却装置２０の冷却水槽２２内の冷却水の温度上昇を抑制でき、冷凍装置２５の稼働率を低くしてランニングコストの増加を防ぐことができた。   In the beverage supply device 10 configured as described above, the cooling water in the cooling water tank 22 is sent out by driving the pump 29 of the cooling water circulation conduit 26 of the beverage cooling device 20 during business hours of restaurants and the like. It is made to send out toward the extraction cock 32 through the side part 27, the cooling water sent out from the delivery side part 27 is returned to the cooling fluid tank 22 by the return side part 28, and it retains in the inside of the extraction cock 32. The beverage is cooled. When it is outside the business hours of restaurants and the like, there is no need to cool the beverage staying inside the pouring cock 32, so the drive of the pump 29 of the cooling water circulation pipe 26 is stopped and the cooling water tank 22 of the beverage cooling device 20 is stopped. An increase in the temperature of the cooling water inside is suppressed, and the operating rate of the refrigeration apparatus 25 is lowered to prevent an increase in running cost. When the driving of the pump 29 of the cooling water circulation pipe 26 is stopped, the cooling water in the cooling liquid tank 22 is not sent from the sending side part 27 to the return side part 28 and the return side part 28 of the cooling liquid circulation pipe 26 is returned. A part of the cooling water remaining in the cooling water tank 22 is discharged into the cooling water tank 22 from the return port 28 b by the air flowing in from the through hole 28 c of the return side part 28. There is no state. As a result, the cooling water in the cooling water tank 22 is generated in the cooling water tank 22 by the water flow caused by the temperature difference between the cooling water in the cooling water tank 22 and the cooling water in the cooling water circulation pipe 26. Even if a flow of sucking the cooling water from the delivery side portion 27 of the circulation pipe 26 is generated, the cooling water is not sucked from the return side portion 28 of the cooling liquid circulation pipe 26, and the cooling water tank 22 is stopped when the driving of the pump 29 is stopped. It was possible to prevent the internal cooling water from flowing back through the cooling water circulation pipe 26. As a result, when the drive of the pump 29 of the cooling water circulation pipe 26 is stopped, the temperature rise of the cooling water in the cooling water tank 22 of the beverage cooling device 20 can be suppressed, and the operating rate of the freezing device 25 is lowered to run. The increase in cost could be prevented.

また、冷却水循環管路２６の戻し側部２８の戻し口側端部２８ａには冷却水槽２２の冷却水の水面より上側に貫通孔２８ｃが形成され、戻し口側端部２８ａの外側には貫通孔２８ｃと対向する位置を隙間をあけて覆うカバー３０を設けた。これにより、ポンプ２９を駆動させているときに、戻し側部２８を通過する冷却水は貫通孔２７ｃから外側に噴射されることになるが、噴射される冷却水はカバー３０によって冷却水槽２２の冷却水の水面に直接噴射されずに、円筒形をしたカバー３０の軸線方向の両側から冷却水槽２２に流れ落ちるようになる。このように、戻し側部２８の戻し口側端部２８ａの外側にて貫通孔２８ｃと対向する位置にカバー３０を設けたことで、貫通孔２８ｃから噴出する冷却水が周囲に飛散したり、冷却水の水面に直接当たることによって生じる飛沫が飛散するのを防ぐことができた。なお、カバー３０は円筒形に限られるものでなく、貫通孔２８ｃを隙間を空けて覆うようにしたものであれば、例えばＵ字形をしたクリップを戻し口側端部２８ａに狭持させるようにしたものであってもよい
上述した実施形態の飲料冷却装置は冷却水槽（冷却液槽）内に冷却液として冷却水を貯えたものであるが、本発明はこれに限られるものでなく、熱媒体として不凍液等の他の冷却液を用いたものであってもよく、このようにしたときにも上述したのと同様の作用効果を得ることができる。 Further, a through hole 28c is formed in the return side end portion 28a of the return side portion 28 of the cooling water circulation pipe 26 above the coolant surface of the cooling water tank 22, and a through hole is formed outside the return port side end portion 28a. A cover 30 was provided to cover the position facing the hole 28c with a gap. Thereby, when the pump 29 is driven, the cooling water passing through the return side portion 28 is jetted to the outside from the through hole 27c, but the jetted cooling water is stored in the cooling water tank 22 by the cover 30. Instead of being directly injected onto the water surface of the cooling water, it flows down to the cooling water tank 22 from both sides in the axial direction of the cylindrical cover 30. Thus, by providing the cover 30 at a position facing the through hole 28c outside the return port side end portion 28a of the return side portion 28, the cooling water ejected from the through hole 28c is scattered around, It was possible to prevent splashes generated by direct contact with the cooling water surface from scattering. Note that the cover 30 is not limited to a cylindrical shape. For example, if the cover 30 covers the through hole 28c with a gap, for example, a U-shaped clip is sandwiched between the return port side end portion 28a. The beverage cooling device of the above-described embodiment is one in which cooling water is stored as a cooling liquid in a cooling water tank (cooling liquid tank), but the present invention is not limited to this, and heat Another medium such as an antifreeze liquid may be used as the medium, and the same effects as described above can be obtained even in this case.

また、上述した実施形態の飲料冷却装置は冷却水槽内に飲料を冷却する飲料冷却管を設けたものであるが、本発明はこれに限られるものでなく、飲料を他の冷却手段によって予め冷却したものに用い、冷却水槽（冷却液槽）内の冷却水（冷却液）を注出コック（外部の被冷却物）にだけ冷却するようにしたものであってもよく、このようにしたときにも上述したのと同様の作用効果を得ることができる。   Moreover, although the drink cooling device of embodiment mentioned above provided the drink cooling pipe which cools a drink in a cooling water tank, this invention is not restricted to this, A drink is cooled beforehand with another cooling means. The cooling water (cooling liquid) in the cooling water tank (cooling liquid tank) may be cooled only to the pouring cock (external object to be cooled). In addition, the same effect as described above can be obtained.

また、上述した実施形態の飲料冷却装置は外部の被冷却物として注出コック３２と飲料送出管３３を通過する飲料を冷却するものであるが、本発明はこれに限られるものでなく注出コック３２と飲料送出管３３の一方だけを冷却するものであってもよく、また、他の被冷却物を冷却するものであってもよく、このようにしたときにも上述したのと同様の作用効果を得ることができる。   Moreover, although the drink cooling device of embodiment mentioned above cools the drink which passes the pouring cock 32 and the drink delivery pipe | tube 33 as an external to-be-cooled object, this invention is not limited to this but is pouring out Only one of the cock 32 and the beverage delivery pipe 33 may be cooled, or another object to be cooled may be cooled. When this is done, the same as described above is also possible. An effect can be obtained.

また、本発明の冷却装置は、冷却装置の内部の発熱部を被冷却物とし、冷却液槽内の冷却液を発熱部に循環させて冷却するようにしたものであってもよく、このようにしたときにも上述したのと同様の作用効果を得ることができる。さらに、冷却装置の外部に設けた装置の発熱部を被冷却部とし、冷却液槽内の冷却液を発熱部に循環させて冷却するようにしたものであってもよく、このようにしたときにも上述したのと同様の作用効果を得ることができる。   Further, the cooling device of the present invention may be one in which the heat generating part inside the cooling device is an object to be cooled, and the cooling liquid in the cooling liquid tank is circulated to the heat generating part for cooling. Even in this case, the same effect as described above can be obtained. Further, the heat generating part of the device provided outside the cooling device may be a part to be cooled, and the cooling liquid in the cooling liquid tank may be circulated to the heat generating part for cooling. In addition, the same effect as described above can be obtained.

２０…冷却装置（飲料冷却装置）、２２…冷却水槽、２６…冷却液循環管路（冷却水循環管路）、２７…送出側部、２８…戻し側部、２８ａ…戻し口側端部、２８ｂ…戻し口、２８ｃ…貫通孔、２９…ポンプ、３０…カバー、３２…被冷却物（注出コック）。 DESCRIPTION OF SYMBOLS 20 ... Cooling device (beverage cooling device), 22 ... Cooling water tank, 26 ... Cooling liquid circulation line (cooling water circulation line), 27 ... Sending side part, 28 ... Return side part, 28a ... Return port side end part, 28b ... return port, 28c ... through hole, 29 ... pump, 30 ... cover, 32 ... object to be cooled (pour cock).

Claims (2)

冷却液を貯えた冷却液槽と、
前記冷却液槽内の冷却液を外部の被冷却物に向けて送出する送出側部と、該送出側部から送出された冷却液を前記冷却液槽に戻す戻し側部とを有した冷却液循環管路と、
前記冷却液循環管路に介装されて前記冷却液槽内の冷却液を前記冷却液循環管路に送り出すポンプとを備え、
前記冷却液循環管路の戻し側部は冷却液の戻し口が前記冷却液槽内の冷却液中に配置されるように、冷却液の戻し口側端部を前記冷却液槽内の冷却液の上側から冷却液中に配設するようにした冷却装置であって、
前記戻し口側端部には前記冷却液槽の冷却液の液面より上側に貫通孔を形成したことを特徴とする冷却装置。 A coolant tank storing the coolant;
Cooling liquid having a sending side part for sending the cooling liquid in the cooling liquid tank toward an external object to be cooled, and a return side part for returning the cooling liquid sent from the sending side part to the cooling liquid tank A circulation line,
A pump that is interposed in the cooling liquid circulation pipe and sends out the cooling liquid in the cooling liquid tank to the cooling liquid circulation pipe;
The return side portion of the coolant circulation pipe line is connected to the coolant return port side end so that the coolant return port is disposed in the coolant in the coolant bath. A cooling device arranged in the coolant from above,
The cooling device according to claim 1, wherein a through hole is formed on the return port side end portion above the coolant level of the coolant tank. 請求項１に記載の冷却装置において、
前記戻し口側端部の外側には前記貫通孔と対向する位置を隙間をあけて覆うカバーを設けたことを特徴とする冷却装置。 The cooling device according to claim 1, wherein
A cooling device, wherein a cover that covers a position facing the through hole with a gap is provided outside the end portion on the return port side.
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