JP4419854B2 - Drinking water dispenser - Google Patents

Drinking water dispenser Download PDF

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JP4419854B2
JP4419854B2 JP2005014430A JP2005014430A JP4419854B2 JP 4419854 B2 JP4419854 B2 JP 4419854B2 JP 2005014430 A JP2005014430 A JP 2005014430A JP 2005014430 A JP2005014430 A JP 2005014430A JP 4419854 B2 JP4419854 B2 JP 4419854B2
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hot water
water tank
tank
drinking water
pipe
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正美 橋本
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Fuji Electric Retail Systems Co Ltd
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Description

本発明は、飲料水を供給するディスペンサに関する発明であり、より詳細には冷水と温水を供給する一方、そのディスペンサ内に設けた貯留タンクを備えた配管系統内を熱による殺菌を可能としたディスペンサに関するものである。   The present invention relates to a dispenser that supplies drinking water, and more specifically, a dispenser that can supply cold water and hot water, while enabling disinfection by heat in a piping system including a storage tank provided in the dispenser. It is about.

飲料水を供給するディスペンサは、飲料水に対する使用者の関心が高まるにつれ、飲料水の安全性の確保と、飲料水の官能面での品質追求が高く要求されるようになってきた。飲料水の安全性の確保は、水道水を供給するディスペンサの場合、水道水に殺菌のために添加されている塩素により水道水自身が殺菌性を有するため、水道水中での微生物の増殖は抑制され、問題となることは少ない。しかし、ミネラルウオーターなどの飲料水の場合は、飲料水に殺菌のための塩素などは添加されておらず、飲料水中での微生物の増殖が重要な問題である。
そこで飲料水が詰められた飲料水容器を冷却する冷蔵庫と、飲料水容器に接続した配管系統中に冷却装置を有する冷水タンクと加熱装置を有する温水タンクとの飲料水を貯溜する2種類のタンクを備え、大流量送出が可能な循環ポンプを介在させた配管で冷水タンクと温水タンクとを連通して、温水タンクの温水を配管系統内で強制循環させることにより、配管系統内の殺菌を行うようにした飲料水のディスペンサもある(例えば、特許文献1参照)。
特開平11−190577号公報
As a dispenser for supplying drinking water has become more and more popular with users about drinking water, there has been a high demand for ensuring the safety of drinking water and pursuing quality in the sensuality of drinking water. To ensure the safety of drinking water, in the case of a dispenser that supplies tap water, since the tap water itself is bactericidal by chlorine added to the tap water for sterilization, the growth of microorganisms in the tap water is suppressed. It is rarely a problem. However, in the case of drinking water such as mineral water, chlorine for sterilization is not added to the drinking water, and the proliferation of microorganisms in the drinking water is an important problem.
Therefore, a refrigerator for cooling a drinking water container filled with drinking water, and two types of tanks for storing drinking water, a cold water tank having a cooling device and a hot water tank having a heating device in a piping system connected to the drinking water container. The pipe system is sterilized by forcibly circulating the hot water in the hot water tank in the pipe system by connecting the cold water tank and the hot water tank through a pipe with a circulation pump capable of delivering a large flow rate. There is also a dispenser for drinking water (see, for example, Patent Document 1).
JP-A-11-190577

しかしながら、大流量送出循環ポンプを使用して温水タンクの温水を配管系統内に強制循環させて殺菌を行う方法は、機器の製造コストが増大するといった問題を招来することになる。
本発明は、上記実情に鑑みて、冷水と温水を供給することができる一方、そのディスペンサ中の貯留タンクを備えた配管系統内を熱による殺菌を可能としたディスペンサに関し、機器製造コストの低減を図ることができる飲料水のディスペンサを提供することを目的とする。
However, the method of performing sterilization by forcibly circulating the hot water in the hot water tank into the piping system using a large flow rate circulation pump causes a problem that the manufacturing cost of the equipment increases.
In view of the above circumstances, the present invention relates to a dispenser that can supply cold water and hot water, while enabling disinfection by heat in a piping system equipped with a storage tank in the dispenser, and to reduce equipment manufacturing costs. An object of the present invention is to provide a drinking water dispenser that can be used.

上記目的を達成するため、本発明の請求項1に係る飲料水のディスペンサは、飲料水容器を接続手段を介して配管系統に接続して飲料水を供給するディスペンサであって、前記配管系統中に飲料水を貯留するタンクを備え、該貯留タンクが、冷却装置を有する冷水タンクと加熱装置を有する温水タンクとから成り、かつ、前記飲料水容器を冷却する装置を有する飲料水のディスペンサにおいて、
前記冷水タンクを飲料水容器の下方に配置し、さらに、温水タンクを冷水タンクの下方に配置して、前記接続手段を介在させて温水タンクと冷水タンクを連通した第1の配管の接続手段と温水タンクの途中に温水ポンプを配設するとともに、冷水タンクと温水タンクの下部を開閉弁を介在させた第2の配管で連通し、
前記開閉弁を閉塞して、冷水タンクから冷水を、温水タンクから温水を供給し、
前記開閉弁を開放し、前記温水ポンプを駆動して温水タンクの温水を前記第1の配管から冷水タンク、第2の配管、温水タンクへと循環させることにより、配管系統内の殺菌を可能にしたことを特徴とする。
In order to achieve the above object, a drinking water dispenser according to claim 1 of the present invention is a dispenser for supplying drinking water by connecting a drinking water container to a piping system via a connecting means, and in the piping system. A drinking water dispenser having a tank for storing drinking water, the storage tank comprising a cold water tank having a cooling device and a hot water tank having a heating device, and having a device for cooling the drinking water container,
A first pipe connecting means for disposing the cold water tank below the drinking water container, further disposing the hot water tank below the cold water tank, and connecting the hot water tank and the cold water tank with the connecting means interposed therebetween; A hot water pump is arranged in the middle of the hot water tank, and the cold water tank and the lower part of the hot water tank are communicated with a second pipe having an on-off valve interposed therebetween.
Close the on-off valve, supply cold water from a cold water tank, supply hot water from a hot water tank,
Opening the on-off valve and driving the hot water pump to circulate hot water in the hot water tank from the first pipe to the cold water tank, the second pipe, and the hot water tank, thereby enabling sterilization in the piping system It is characterized by that.

また、本発明の請求項2に係る飲料水のディスペンサは、飲料水容器を接続手段を介して配管系統に接続して飲料水を供給するディスペンサであって、前記配管系統中に飲料水を貯留するタンクを備え、該貯留タンクが、冷却装置を有する冷水タンクと加熱装置を有する温水タンクとから成り、かつ、前記飲料水容器を冷却する装置を有する飲料水のディスペンサにおいて、
前記冷水タンクを飲料水容器の下方に配置し、さらに、温水タンクを冷水タンクの下方に配置して、前記接続手段を介在させて温水タンクと冷水タンクを第1の配管で連通して、冷水タンクと温水タンクの下部を開閉弁を介在させた第2の配管で連通するとともに、前記接続手段と温水タンクを連通した第3の配管に温水ポンプを配設し、
前記開閉弁を閉塞して、冷水タンクから冷水を、温水タンクから温水を供給し、
前記開閉弁を開放し、前記温水ポンプを駆動して温水タンクの温水を前記第3の配管を介して第1の配管、冷水タンク、第2の配管、温水タンクへと循環させることにより、配管系統内の殺菌を可能にしたことを特徴とする。
A dispenser for drinking water according to claim 2 of the present invention is a dispenser for supplying drinking water by connecting a drinking water container to a piping system via connecting means, and stores drinking water in the piping system. A drinking water dispenser comprising a cold water tank having a cooling device and a hot water tank having a heating device, and having a device for cooling the drinking water container,
The cold water tank is disposed below the drinking water container, the hot water tank is disposed below the cold water tank, and the hot water tank and the cold water tank are communicated with each other through the first pipe via the connection means. The lower part of the tank and the hot water tank are communicated with a second pipe with an on-off valve interposed therebetween, and a hot water pump is disposed in a third pipe that communicates with the connecting means and the hot water tank,
Close the on-off valve, supply cold water from a cold water tank, supply hot water from a hot water tank,
By opening the on-off valve and driving the hot water pump to circulate the hot water in the hot water tank to the first pipe, the cold water tank, the second pipe, and the hot water tank through the third pipe. It is characterized by enabling sterilization in the system.

また、本発明の請求項3に係る飲料水のディスペンサは、上述した請求項1または2において、前記開閉弁と温水ポンプを定期的に駆動させるタイマーを有する制御手段を備え、前記制御手段が開閉弁を開放し、温水ポンプを駆動して温水タンクの温水を前記配管系統内で循環させることにより、配管系統内の自動的な殺菌を可能にしたことを特徴とする。   According to a third aspect of the present invention, there is provided a drinking water dispenser according to the first or second aspect, comprising control means having a timer for periodically driving the on-off valve and the hot water pump, wherein the control means is opened and closed. The valve is opened, and the hot water pump is driven to circulate the hot water in the hot water tank in the piping system, thereby enabling automatic sterilization in the piping system.

請求項1の発明によれば、冷水と温水を供給することができる一方、そのディスペンサ中の貯留タンクを備えた配管系統内を熱による殺菌を可能としたディスペンサに関し、温水を送出して循環させる温水ポンプは、温水の自然循環を補助する送出量を確保できればよいので、小容量低コストのポンプを使用することができ、機器製造コストの低減を図ることができる飲料水のディスペンサを実現することが可能になる。
請求項2の発明によれば、温水ポンプにピストン式ポンプなどのように飲料水供給時にその内部を通流することができないポンプを使用しても、飲料水供給時には第1の配管を通流させて温水タンクに飲料水が供給され、配管系統内の加熱殺菌時には温水ポンプを駆動して第3の配管から温水を強制送出して配管系統内を循環させて殺菌することができるので、使用可能ポンプが限定されなくなるので、機器製造コストの低減を図ることができる飲料水のディスペンサを実現することが可能になる。
According to the first aspect of the invention, cold water and hot water can be supplied. On the other hand, a dispenser that can be sterilized by heat in a piping system having a storage tank in the dispenser, sends out hot water and circulates it. Since the hot water pump only needs to secure a delivery amount that assists the natural circulation of hot water, a small-capacity low-cost pump can be used, and a drinking water dispenser that can reduce equipment manufacturing costs is realized. Is possible.
According to the invention of claim 2, even if a hot water pump such as a piston-type pump that cannot flow through the interior of the drinking water supply is used, the first pipe flows through the drinking water supply. The drinking water is supplied to the hot water tank, and during the heat sterilization in the piping system, the hot water pump can be driven to forcibly send the hot water from the third piping and circulate in the piping system for sterilization. Since the possible pumps are not limited, it becomes possible to realize a drinking water dispenser capable of reducing the device manufacturing cost.

請求項3の発明によれば、配管系統内の自動的な殺菌を可能にしたので、夜間などの飲料水のディスペンサを稼働させていない時間帯に自動で配管系統内を加熱殺菌することが可能になる。   According to the invention of claim 3, since the automatic sterilization in the piping system is enabled, it is possible to automatically sterilize the piping system in the time zone when the drinking water dispenser is not operated, such as at night. become.

以下に添付図面を参照して、本発明に係る飲料水のディスペンサの好適な実施の形態について詳細に説明する。なお、この実施の形態によりこの発明が限定されるものではない。
(実施の形態1)
図1および図2に基づいて、本発明の実施の形態1である飲料水のディスペンサの構成を説明する。
図1は、飲料水のディスペンサ1の外観図を示し、底面の四隅に設けられた脚3によって支持される機器筐体2の上部に、前面開口に扉5が開閉可能に装着された冷蔵庫4の内部に飲料水容器6を載置する棚板7が備えられている。また、冷蔵庫4の下部の飲料水注出部8には冷水注出釦9、温水注出釦10と、その下方にはベンドステージ13に載置してある容器に冷水、温水を注出する電磁弁を有する冷水注出バルブ11、温水注出バルブ12が設けられている。さらに、機器筐体2内には、冷水タンク14、温水タンク15や冷凍サイクルを構成する圧縮機31などが収容されている。
Hereinafter, preferred embodiments of a dispenser for drinking water according to the present invention will be described in detail with reference to the accompanying drawings. Note that the present invention is not limited to the embodiments.
(Embodiment 1)
Based on FIG. 1 and FIG. 2, the structure of the dispenser of the drinking water which is Embodiment 1 of this invention is demonstrated.
FIG. 1 shows an external view of a drinking water dispenser 1, and a refrigerator 4 in which a door 5 is openably / closably attached to an upper portion of a device housing 2 supported by legs 3 provided at four corners of a bottom surface. Is provided with a shelf plate 7 on which the drinking water container 6 is placed. Also, cold water and hot water are poured into a container placed on a bend stage 13 below the cold water pouring button 9 and the hot water pouring button 10 in the drinking water pouring section 8 at the lower part of the refrigerator 4. A cold water pouring valve 11 and a hot water pouring valve 12 having an electromagnetic valve are provided. Further, the device housing 2 accommodates a cold water tank 14, a hot water tank 15, a compressor 31 constituting a refrigeration cycle, and the like.

図2は、飲料水のディスペンサ1の回路構成を説明する概念図を示し、冷蔵庫4に収納したBIB(バッグインボックス型容器)などの飲料水容器6の下方に冷水タンク14を、さらにその下方には温水タンク15を配置し、飲料水容器6に接続した三方コネクタ(接続手段)16を介して冷水タンク14の上部に配管17を、温水タンク15の上部に温水ポンプ50を介在させた配管18で連通している(配管17と配管18で第1の配管を構成する)。飲料水容器6に詰められた飲料水Wをその自重で三方コネクタ16から冷水タンク14、温水タンク15へと導き、冷水タンク14に付設した蒸発器37(冷却装置)で飲料水Wを冷却して冷水(例えば、2℃)とし、温水タンク15に付設したヒータ19(加熱装置)で飲料水Wを加熱して温水(例えば、90℃)とする。そして、冷水注出釦9が押されると、冷水タンク14の下部に連通している電磁弁11bが開放して飲料水Wの自重で冷水注出バルブ11から冷水が注がれ、また、温水注出釦10が押されると、温水タンク15の上部に連通している電磁弁12bが開放して飲料水Wの自重で温水注出バルブ12から温水が注がれる。さらに、冷水タンク14下部の冷水注出バルブ11近傍から分岐した配管20(第二の配管)に電磁弁21(開閉弁)を介在させて温水タンク15の下部に設けたドレン配管22に連通させ、ドレン配管22には栓22aを設け、配管系統の水抜きを可能としている。なお、電磁弁21は飲料水Wを供給可能にしている時は閉塞している。   FIG. 2 is a conceptual diagram illustrating the circuit configuration of the drinking water dispenser 1. A cold water tank 14 is provided below a drinking water container 6 such as a BIB (bag-in-box type container) stored in the refrigerator 4, and further below the cooling water tank 14. A hot water tank 15 is arranged, and a pipe 17 is provided above the cold water tank 14 via a three-way connector (connecting means) 16 connected to the drinking water container 6, and a hot water pump 50 is provided above the hot water tank 15. 18 (the first pipe is constituted by the pipe 17 and the pipe 18). The drinking water W packed in the drinking water container 6 is guided by its own weight from the three-way connector 16 to the cold water tank 14 and the hot water tank 15, and the drinking water W is cooled by an evaporator 37 (cooling device) attached to the cold water tank 14. Cold water (eg, 2 ° C.) is used, and the drinking water W is heated by a heater 19 (heating device) attached to the hot water tank 15 to obtain hot water (eg, 90 ° C.). When the cold water pouring button 9 is pressed, the electromagnetic valve 11b communicating with the lower part of the cold water tank 14 is opened, and cold water is poured from the cold water pouring valve 11 by the dead weight of the drinking water W. When the dispensing button 10 is pressed, the electromagnetic valve 12b communicating with the upper part of the warm water tank 15 is opened, and warm water is poured from the warm water dispensing valve 12 by the dead weight of the drinking water W. Further, a solenoid pipe 21 (open / close valve) is interposed in a pipe 20 (second pipe) branched from the vicinity of the cold water discharge valve 11 in the lower part of the cold water tank 14 to communicate with a drain pipe 22 provided in the lower part of the hot water tank 15. The drain pipe 22 is provided with a stopper 22a to allow drainage of the piping system. The solenoid valve 21 is closed when the drinking water W can be supplied.

また、飲料水Wが溢れ出さないように飲料水容器6より高い位置でU字状に折り返し、パイプ先端に飲料水Wの沸騰を検出した時にヒータ19の加熱を停止する沸騰防止サーモ24を設けた蒸気逃がしパイプ23を温水タンク15の上部に連通している。また、温水タンク15の空焚きを検出した時にはヒータ19の加熱を停止して空焚きを防止する空焚き防止サーモ25と、温水の温度を検出して温度信号を出力する温度センサ26を温水タンク15に設け、冷水の温度を検出して温度信号を出力する温度センサ27を冷水タンク14に設けている。
さらに、31は圧縮機、32は凝縮器、33はドライヤ、34はキャピラリチューブ、35は冷蔵庫4を冷却(例えば、約10℃)する蒸発器、36は蒸発器35の温度を検出して温度信号を出力する蒸発器温度センサ、38はヘッダ、39は冷媒配管、40は蒸発器35で冷却された冷蔵庫内の空気を循環するための送風機、をそれぞれ示している。圧縮機31、凝縮器32、ドライヤ33、キャピラリチューブ34、蒸発器35、37、ヘッダ38、冷媒配管39で冷凍サイクルを構成し、蒸発器35で冷蔵庫4を、蒸発器37で冷水タンク14を冷却する働きをする。
Also, a boil prevention thermo 24 is provided that folds back in a U shape at a position higher than the drinking water container 6 so that the drinking water W does not overflow, and stops heating the heater 19 when the boiling of the drinking water W is detected at the pipe tip. The steam escape pipe 23 communicates with the upper part of the hot water tank 15. In addition, when the hot water tank 15 is detected to be blown, the heater 19 is stopped from being heated to prevent the hot water from being blown, and the temperature sensor 26 is used to detect the temperature of the hot water and output a temperature signal. 15, a temperature sensor 27 that detects the temperature of the cold water and outputs a temperature signal is provided in the cold water tank 14.
Further, 31 is a compressor, 32 is a condenser, 33 is a dryer, 34 is a capillary tube, 35 is an evaporator that cools the refrigerator 4 (for example, about 10 ° C.), and 36 is a temperature detected by detecting the temperature of the evaporator 35. An evaporator temperature sensor that outputs a signal, 38 is a header, 39 is a refrigerant pipe, and 40 is a blower for circulating the air in the refrigerator cooled by the evaporator 35. The compressor 31, the condenser 32, the dryer 33, the capillary tube 34, the evaporators 35 and 37, the header 38 and the refrigerant pipe 39 constitute a refrigeration cycle, the evaporator 35 serves as the refrigerator 4, and the evaporator 37 serves as the cold water tank 14. Works to cool.

このように構成された飲料水のディスペンサ1は、冷蔵庫4が蒸発器35により冷却されて飲料水容器6の飲料水Wの雑菌の増殖を抑制して安全に保存できるとともに、図2における配管系統内を矢示方向に流れて、冷水タンク14に流入した飲料水Wは蒸発器37で冷却されて、冷水注出釦9が押されると電磁弁11bが開放して適度に冷えた冷水が冷水注出バルブ11から注がれる。また、温水タンク15に流入した飲料水Wはヒータ19で加熱されて、温水注出釦10が押されると電磁弁12bが開放して適度に温められた温水が温水注出バルブ12から注がれる。
図3は、本発明の実施の形態1に係る飲料水のディスペンサの温水ポンプ50を示した断面側面図であり、駆動モータ51のシャフト52に挿着させた回転羽根53と、飲料水Wの通流口55、56を有する回転羽根カバー54と、シール材57を嵌着して駆動モータ51に装着し、Oリング59を圧着させて回転羽根カバー54と図示しないねじで固定したポンプベース58で構成している。回転羽根53が回転していない時は、飲料水Wは通流口55から流入し、回転羽根53と回転羽根カバー54との隙間を通流して通流口56から流出することも、通流口56から流入し、回転羽根53と回転羽根カバー54との隙間を通流して通流口55から流出することも可能だが、飲料水W供給時は、図中点線で示す矢印が示すように、飲料水Wは通流口55から流入して通流口56から流出する。供給制御部80(図4参照)から信号が出力され、駆動モータ51が駆動されて回転羽根53が回転すると、図中実線で示す矢印が示すように、飲料水Wは通流口56から流入して通流口55から強制的に送出される。
The drinking water dispenser 1 configured in this manner can be stored safely by suppressing the proliferation of various germs in the drinking water W in the drinking water container 6 when the refrigerator 4 is cooled by the evaporator 35, and the piping system in FIG. The drinking water W flowing in the direction of the arrow and flowing into the cold water tank 14 is cooled by the evaporator 37, and when the cold water dispensing button 9 is pressed, the electromagnetic valve 11b is opened and the cold water that has been cooled appropriately is cold water. It is poured from the dispensing valve 11. The drinking water W flowing into the hot water tank 15 is heated by the heater 19, and when the hot water pouring button 10 is pressed, the electromagnetic valve 12 b is opened and the warm water warmed appropriately is poured from the hot water pouring valve 12. It is.
FIG. 3 is a cross-sectional side view showing the hot water pump 50 of the drinking water dispenser according to the first embodiment of the present invention, and the rotating blades 53 inserted into the shaft 52 of the drive motor 51 and the drinking water W. A rotary blade cover 54 having flow holes 55 and 56 and a seal base 57 are fitted and attached to the drive motor 51, and an O-ring 59 is crimped and fixed to the rotary blade cover 54 with screws (not shown). It consists of. When the rotary blade 53 is not rotating, the drinking water W flows from the flow port 55, flows through the gap between the rotary blade 53 and the rotary blade cover 54, and flows out from the flow port 56. It is possible to flow in from the port 56, flow through the gap between the rotary blade 53 and the rotary blade cover 54, and flow out from the flow port 55. However, when drinking water W is supplied, as indicated by the arrow indicated by the dotted line in the figure The drinking water W flows in from the flow port 55 and flows out from the flow port 56. When a signal is output from the supply control unit 80 (see FIG. 4) and the drive motor 51 is driven to rotate the rotary blade 53, the drinking water W flows from the through-flow port 56 as indicated by the solid line in the figure. Then, it is forcibly sent out from the flow-through port 55.

次に図4に示す制御ブロック図で、本発明の実施の形態1に係る飲料水のディスペンサの制御について説明する。符号は、図1、2および図3のものに対応している。制御は、供給制御部80(制御手段)により行われ、飲料水のディスペンサ1の各部の制御データを記憶するメモリ81と、基準クロック発生部(図示せず)で発生するクロックをカウントして、電磁弁21や温水ポンプ50の駆動時間を計数するタイマー82を有する。メモリ81は電磁弁21や温水ポンプ50の駆動時間を記憶している。また、設定入力部83は、電磁弁21や温水ポンプ50の駆動時間、冷蔵庫4や冷水タンク14、温水タンク15の設定温度を入力するためのものである。
以上のような構成の飲料水のディスペンサ1においては、次のようにして飲料水Wを供給することができる。
Next, with reference to the control block diagram shown in FIG. 4, control of the drinking water dispenser according to Embodiment 1 of the present invention will be described. The reference numerals correspond to those in FIGS. The control is performed by the supply control unit 80 (control means), and counts a clock generated by a memory 81 that stores control data of each part of the dispenser 1 of drinking water and a reference clock generation unit (not shown), A timer 82 for counting the drive time of the solenoid valve 21 and the hot water pump 50 is provided. The memory 81 stores the drive time of the electromagnetic valve 21 and the hot water pump 50. The setting input unit 83 is for inputting the drive time of the solenoid valve 21 and the hot water pump 50 and the set temperatures of the refrigerator 4, the cold water tank 14, and the hot water tank 15.
In the drinking water dispenser 1 configured as described above, the drinking water W can be supplied as follows.

利用者が冷水注出釦9または温水注出釦10を押すことにより発せられた信号に基づいて供給制御部80が電磁弁11bもしくは電磁弁12bに信号を出力して飲料水Wを供給する。例えば、冷水注出釦9が押されると電磁弁11bが開放して冷水注出バルブ11から冷水が、温水注出釦10が押されると電磁弁12bが開放して温水注出バルブ12から温水が供給される。
配管系統内を加熱殺菌するときは、圧縮機31の運転を停止し、制御部80が信号を出力して電磁弁21を開放すると、密度が小さい温水は上昇し、密度が大きい冷水は下降する対流現象により、図5で示すように、温水タンク15の温水が配管18に設けた温水ポンプ50の通流口56から通流口55へと流れ、三方コネクタ16、配管17を通流して冷水タンク14に、冷水タンク14の冷水は電磁弁21を介在させた配管20から温水タンク15へと配管系統内を自然循環(対流)を始めて加熱殺菌を行うが、さらに、図6のタイミングチャートで示すように、温水ポンプ50を所定の時間間隔(例えば、5秒間駆動、25秒間停止)で駆動すると、駆動モータ51のシャフト52に挿着させた回転羽根53が回転して温水を強制送出するので循環速度が速まる。その結果、図7の三方コネクタ16の部分の飲料水W温度測定データで示すように、配管系統内の飲料水W温度上昇が早まり、55℃以上の温度を安定して長時間維持することができる。このように、電磁弁21を開放した自然循環のみでは、三方コネクタ16の部分で飲料水容器6に詰められた飲料水Wが対流をおこして温度が上昇するのに時間が掛るが、温水ポンプ50で温水を強制送出すると三方コネクタ16の部分を強制循環され、温度上昇の差を図中斜線で示しているように、温度上昇が早まることが確認されている。さらに、温水を送出して循環させる温水ポンプ50は、温水の自然循環を補助する送出量を確保できればよいので、小容量低コストのポンプを使用することができる。
Based on the signal generated when the user presses the cold water pouring button 9 or the hot water pouring button 10, the supply controller 80 outputs a signal to the electromagnetic valve 11b or the electromagnetic valve 12b to supply the drinking water W. For example, when the cold water pouring button 9 is pressed, the electromagnetic valve 11b is opened and cold water is released from the cold water pouring valve 11, and when the hot water pouring button 10 is pressed, the electromagnetic valve 12b is opened and hot water is drawn from the hot water pouring valve 12. Is supplied.
When the inside of the piping system is sterilized by heating, the operation of the compressor 31 is stopped, and when the control unit 80 outputs a signal and opens the solenoid valve 21, the hot water having a low density rises and the cold water having a high density falls. Due to the convection phenomenon, as shown in FIG. 5, the hot water in the hot water tank 15 flows from the flow port 56 of the hot water pump 50 provided in the pipe 18 to the flow port 55, and flows through the three-way connector 16 and the pipe 17. The chilled water in the chilled water tank 14 is sterilized by heating through a natural circulation (convection) in the piping system from the piping 20 through the solenoid valve 21 to the hot water tank 15, as shown in the timing chart of FIG. As shown, when the hot water pump 50 is driven at a predetermined time interval (for example, driven for 5 seconds and stopped for 25 seconds), the rotary blade 53 inserted into the shaft 52 of the drive motor 51 rotates to forcibly send the hot water. The circulation rate is quickened so that. As a result, as shown in the drinking water W temperature measurement data of the three-way connector 16 part of FIG. 7, the drinking water W temperature rise in the piping system is accelerated, and the temperature of 55 ° C. or higher can be stably maintained for a long time. it can. As described above, only natural circulation with the solenoid valve 21 opened takes time for the drinking water W packed in the drinking water container 6 to convect at the three-way connector 16 and rise in temperature. When hot water is forcibly sent out at 50, the three-way connector 16 is forcibly circulated, and it has been confirmed that the temperature rise is accelerated as shown by the oblique lines in the figure. Furthermore, the hot water pump 50 that sends and circulates the hot water only needs to secure a delivery amount that assists the natural circulation of the hot water, so a small-capacity low-cost pump can be used.

また、飲料水Wが加熱されて発生した蒸気が三方コネクタ16の部分に空気の層として溜まると温水の通流の妨げとなるが、温水ポンプ50が回転羽根53の送出圧で温水を強制循環させるので、三方コネクタ16の部分に空気の層が溜まることが無くなる。
配管20を通流して温水タンク15に循環してきた冷水はヒータ19で加熱されて、再び、配管18に設けた温水ポンプ50で送出されて、三方コネクタ16、配管17を通流して冷水タンク14から配管20、温水タンク15へと循環を繰り返し、この間、温度センサ26、27から出力される温度信号を受けた供給制御部80がヒータ19に電圧を印加して所定温度(例えば、80℃)を所定時間(例えば、5分間以上)維持するように制御すると、加熱殺菌に必要な温度(例えば、55℃以上)と時間(例えば、5分間以上)を維持して配管系統内や冷水タンク14の内部の加熱殺菌を行うことができる。そして、所定時間経過すると電磁弁21を閉じて加熱殺菌動作を終了し、圧縮機31の運転を開始すると、冷水タンク14の飲料水Wは蒸発器37で冷却されて冷水(例えば、2℃)となり、温水タンク15の飲料水Wはヒータ19で加熱されて注出用温水温度(例えば、90℃)まで加熱される。
(実施の形態2)
つぎに、本発明の実施の形態2について説明する。上述した実施の形態1では、三方コネクタ16と温水タンク15を連通した配管18の途中に温水ポンプ50を配設した飲料水のディスペンサ1を説明したが、この実施の形態2では、図8に示すように、三方コネクタ16を介在させて冷水タンク14と温水タンク15を連通した配管17、18(第1の配管)と、電磁弁21を介在させて冷水タンク14の下部と温水タンク15の下部を連通した配管20(第二の配管)の他に、三方コネクタ16と温水タンク15を連通した配管61(第3の配管)を設け、配管61に温水ポンプ62を配設して飲料水のディスペンサ60を構成している。これにより、温水ポンプ62にピストン式ポンプなどのように飲料水W供給時にその内部を通流することができないポンプを使用しても、飲料水W供給時には配管18を通流して温水タンク15に供給され、配管系統内の加熱殺菌時には図9に示すように、温水ポンプ62を駆動して温水を強制送出して配管系統内を循環させて殺菌することができる。
Further, when the steam generated by heating the drinking water W accumulates as a layer of air in the three-way connector 16 portion, the hot water flow is obstructed, but the hot water pump 50 forcibly circulates the hot water with the delivery pressure of the rotary blade 53 Therefore, an air layer does not accumulate in the three-way connector 16 portion.
The cold water flowing through the pipe 20 and circulating to the hot water tank 15 is heated by the heater 19 and sent again by the hot water pump 50 provided in the pipe 18, flowing through the three-way connector 16 and the pipe 17, and the cold water tank 14. The supply control unit 80 that receives the temperature signal output from the temperature sensors 26 and 27 applies a voltage to the heater 19 and repeats the circulation from the pipe 20 to the hot water tank 15 during this period. Is controlled to be maintained for a predetermined time (for example, 5 minutes or more), the temperature (for example, 55 ° C. or more) and the time (for example, 5 minutes or more) necessary for heat sterilization are maintained to maintain the inside of the piping system or the cold water tank 14. Can be heat sterilized. When a predetermined time has elapsed, the electromagnetic valve 21 is closed and the heat sterilization operation is terminated. When the compressor 31 starts operating, the drinking water W in the cold water tank 14 is cooled by the evaporator 37 and is cooled (for example, 2 ° C.). Thus, the drinking water W in the hot water tank 15 is heated by the heater 19 and heated to the pouring hot water temperature (for example, 90 ° C.).
(Embodiment 2)
Next, a second embodiment of the present invention will be described. In the first embodiment described above, the drinking water dispenser 1 in which the hot water pump 50 is disposed in the middle of the pipe 18 that communicates the three-way connector 16 and the hot water tank 15 has been described. In the second embodiment, FIG. As shown, pipes 17 and 18 (first pipes) communicating the cold water tank 14 and the hot water tank 15 through the three-way connector 16, and the lower part of the cold water tank 14 and the hot water tank 15 through the electromagnetic valve 21. In addition to the pipe 20 (second pipe) communicating with the lower part, a pipe 61 (third pipe) communicating the three-way connector 16 and the hot water tank 15 is provided, and a hot water pump 62 is provided in the pipe 61 to provide drinking water. The dispenser 60 is configured. As a result, even if a hot water pump 62 such as a piston-type pump that cannot flow inside the drinking water W is used, the piping 18 is passed through the hot water tank 15 when the drinking water W is supplied. At the time of heat sterilization in the piping system, as shown in FIG. 9, the hot water pump 62 can be driven to forcibly send out hot water and circulate in the piping system for sterilization.

本発明の実施の形態1である飲料水のディスペンサの外観図である。It is an external view of the dispenser of drinking water which is Embodiment 1 of the present invention. 図1に示した飲料水のディスペンサの回路構成の概念図である。It is a conceptual diagram of the circuit structure of the dispenser of drinking water shown in FIG. 図1に示した飲料水のディスペンサの温水ポンプを示した断面側面図である。It is the cross-sectional side view which showed the hot water pump of the dispenser of drinking water shown in FIG. 図1に示した飲料水のディスペンサの制御ブロック図である。It is a control block diagram of the dispenser of drinking water shown in FIG. 図1に示した飲料水のディスペンサの加熱殺菌を説明するための概念図である。It is a conceptual diagram for demonstrating the heat sterilization of the dispenser of drinking water shown in FIG. 図1に示した飲料水のディスペンサのタイミングチャートである。It is a timing chart of the dispenser of drinking water shown in FIG. 図1に示した飲料水のディスペンサの接続手段部分での温水温度測定データである。It is the hot water temperature measurement data in the connection means part of the dispenser of drinking water shown in FIG. 本発明の実施の形態2である飲料水のディスペンサの回路構成の概念図である。It is a conceptual diagram of the circuit structure of the dispenser of drinking water which is Embodiment 2 of this invention. 図8に示した飲料水のディスペンサの加熱殺菌を説明するための概念図である。It is a conceptual diagram for demonstrating the heat sterilization of the dispenser of drinking water shown in FIG.

符号の説明Explanation of symbols

1 飲料水のディスペンサ
4 冷蔵庫
6 飲料水容器
9 冷水注出釦
10 温水注出釦
11 冷水注出バルブ
11b 電磁弁
12 温水注出バルブ
12b 電磁弁
14 冷水タンク
15 温水タンク
16 三方コネクタ
17 配管
18 配管
19 ヒータ
20 配管
21 電磁弁
26 温度センサ
27 温度センサ
31 圧縮機
35 蒸発器
37 蒸発器
50 温水ポンプ
53 回転羽根
55 通流口
56 通流口
60 飲料水のディスペンサ
61 配管
62 温水ポンプ
80 供給制御部
81 メモリ
82 タイマー
83 設定入力部
DESCRIPTION OF SYMBOLS 1 Drinking water dispenser 4 Refrigerator 6 Drinking water container 9 Cold water pouring button 10 Hot water pouring button 11 Cold water pouring valve 11b Solenoid valve 12 Hot water pouring valve 12b Solenoid valve 14 Cold water tank 15 Hot water tank 16 Three-way connector 17 Piping 18 Piping DESCRIPTION OF SYMBOLS 19 Heater 20 Piping 21 Solenoid valve 26 Temperature sensor 27 Temperature sensor 31 Compressor 35 Evaporator 37 Evaporator 50 Hot water pump 53 Rotor blade 55 Outflow port 56 Outflow port 60 Drinking water dispenser 61 Piping 62 Hot water pump 80 Supply control part 81 Memory 82 Timer 83 Setting input section

Claims (3)

飲料水容器を接続手段を介して配管系統に接続して飲料水を供給するディスペンサであって、前記配管系統中に飲料水を貯留するタンクを備え、該貯留タンクが、冷却装置を有する冷水タンクと加熱装置を有する温水タンクとから成り、かつ、前記飲料水容器を冷却する装置を有する飲料水のディスペンサにおいて、
前記冷水タンクを飲料水容器の下方に配置し、さらに、温水タンクを冷水タンクの下方に配置して、前記接続手段を介在させて温水タンクと冷水タンクを連通した第1の配管の接続手段と温水タンクの途中に温水ポンプを配設するとともに、冷水タンクと温水タンクの下部を開閉弁を介在させた第2の配管で連通し、
前記開閉弁を閉塞して、冷水タンクから冷水を、温水タンクから温水を供給し、
前記開閉弁を開放し、前記温水ポンプを駆動して温水タンクの温水を前記第1の配管から冷水タンク、第2の配管、温水タンクへと循環させることにより、配管系統内の殺菌を可能にしたことを特徴とする飲料水のディスペンサ。
A dispenser for connecting a drinking water container to a piping system via a connecting means and supplying drinking water, the tank comprising a tank for storing drinking water in the piping system, the storage tank having a cooling device A drinking water dispenser comprising a hot water tank having a heating device and a device for cooling the drinking water container,
A first pipe connecting means for disposing the cold water tank below the drinking water container, further disposing the hot water tank below the cold water tank, and connecting the hot water tank and the cold water tank with the connecting means interposed therebetween; A hot water pump is arranged in the middle of the hot water tank, and the cold water tank and the lower part of the hot water tank are communicated with a second pipe having an on-off valve interposed therebetween.
Close the on-off valve, supply cold water from a cold water tank, supply hot water from a hot water tank,
Opening the on-off valve and driving the hot water pump to circulate hot water in the hot water tank from the first pipe to the cold water tank, the second pipe, and the hot water tank, thereby enabling sterilization in the piping system Drinking water dispenser characterized by the above.
飲料水容器を接続手段を介して配管系統に接続して飲料水を供給するディスペンサであって、前記配管系統中に飲料水を貯留するタンクを備え、該貯留タンクが、冷却装置を有する冷水タンクと加熱装置を有する温水タンクとから成り、かつ、前記飲料水容器を冷却する装置を有する飲料水のディスペンサにおいて、
前記冷水タンクを飲料水容器の下方に配置し、さらに、温水タンクを冷水タンクの下方に配置して、前記接続手段を介在させて温水タンクと冷水タンクを第1の配管で連通して、冷水タンクと温水タンクの下部を開閉弁を介在させた第2の配管で連通するとともに、前記接続手段と温水タンクを連通した第3の配管に温水ポンプを配設し、
前記開閉弁を閉塞して、冷水タンクから冷水を、温水タンクから温水を供給し、
前記開閉弁を開放し、前記温水ポンプを駆動して温水タンクの温水を前記第3の配管を介して第1の配管、冷水タンク、第2の配管、温水タンクへと循環させることにより、配管系統内の殺菌を可能にしたことを特徴とする飲料水のディスペンサ。
A dispenser for connecting a drinking water container to a piping system via a connecting means and supplying drinking water, the tank comprising a tank for storing drinking water in the piping system, the storage tank having a cooling device A drinking water dispenser comprising a hot water tank having a heating device and a device for cooling the drinking water container,
The cold water tank is disposed below the drinking water container, the hot water tank is disposed below the cold water tank, and the hot water tank and the cold water tank are communicated with each other through the first pipe via the connection means. The lower part of the tank and the hot water tank are communicated with a second pipe with an on-off valve interposed therebetween, and a hot water pump is disposed in a third pipe that communicates with the connecting means and the hot water tank,
Close the on-off valve, supply cold water from a cold water tank, supply hot water from a hot water tank,
By opening the on-off valve and driving the hot water pump to circulate the hot water in the hot water tank to the first pipe, the cold water tank, the second pipe, and the hot water tank through the third pipe. A dispenser of drinking water, characterized in that sterilization in the system is possible.
前記開閉弁と温水ポンプを定期的に駆動させるタイマーを有する制御手段を備え、前記制御手段が開閉弁を開放し、温水ポンプを駆動して温水タンクの温水を前記配管系統内で循環させることにより、配管系統内の自動的な殺菌を可能にしたことを特徴とする請求項1または2に記載の飲料水のディスペンサ。   A control means having a timer for periodically driving the on-off valve and the hot water pump; the control means opens the on-off valve and drives the hot water pump to circulate the hot water in the hot water tank in the piping system; The drinking water dispenser according to claim 1, wherein automatic sterilization in the piping system is enabled.
JP2005014430A 2005-01-21 2005-01-21 Drinking water dispenser Expired - Fee Related JP4419854B2 (en)

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