JP2005145511A - Drinking water dispenser - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a drinking water dispenser capable of cleaning a drinking water containing miscellaneous bacilli and reusing the cleaned drinking water in relation to the drinking water dispenser using a natural water packed under vacuum into a bag-in-box type container or the like. <P>SOLUTION: A container 11 in which the drinking water is sealed and having a water cock 12 is provided. A hot water tank 15 for extracting hot water and a cooling tank 15 for extracting cold water are provided. On one end side, a water joint 14 connected with the water cock 12 is provided, and a cold water electromagnetic valve 25 is provided at an intermediate part, and on the other side, a cold water piping 26 constituted with a cold water valve 27 for extracting the cold water is provided. A cleaning piping 28 branched at this side of the cold water valve 27 and having a cleaning electromagnetic valve 29 facing to the hot water tank 15 is provided. When the container 11 is replaced, the drinking water brought into contact with the cold water electromagnetic valve 25 and the air retained above the cold water electromagnetic valve 25 and containing the miscellaneous bacilli is taken into the hot water tank 15 through the cold water piping 26 and the cleaning piping 28. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a drinking water dispenser using natural water vacuum-packed in a bag-in-box type container or the like.

  Conventionally, drinking water dispensers that extract mineral water such as natural water as drinking water or hot water or cold water, mineral water has no bactericidal action, takes in bacteria in the air when exposed to air, and the longer the stagnation time, There is a possibility that germs will breed in the drinking water stagnated in the pipes and solenoid valves. Care must be taken especially in beverage dispensers that extract cold water.

  Therefore, a sterilization heater is provided in the piping system piped to the hot water tank and the cooling tank so that germs stagnated in the piping system can be sterilized by the heat of the heater, or hot water in the hot water tank. Is provided with a circulation pump in the piping system to forcibly circulate in the cold water tank and sterilize germs in the cold water tank by the heat of the hot water (for example, see Patent Document 1).

Japanese Patent Laid-Open No. 6-48488 (6th page, FIGS. 1 and 2)

  However, if such a drinking water dispenser uses the former sterilization heater, the sterilization heater must be attached to the entire piping system, and there is a problem that it is expensive. In the case of forcibly circulating hot water into a cold water tank, it is necessary to make it hot water and then return it to cold water again, which causes problems such as energy loss and time, and a complicated structure.

  The present invention has been made in view of the above points, and when replacing containers filled with drinking water, in particular, germs that may enter the cold water solenoid valve and the cold water piping above the cold water solenoid valve, An object of the present invention is to provide a beverage dispenser that can be washed with a simple structure and that does not waste paid drinking water by allowing the washed drinking water to enter a hot water tank without being discharged.

  The beverage dispenser according to claim 1 is provided in a container filled with drinking water and having a faucet cock, a hot water tank provided in a hot water pipe for extracting hot water, and a cold water pipe for extracting cold water. In a beverage dispenser including a cooling tank having a cooler, the cold water pipe extracts a water joint connected to the faucet cock on one end side, a cold water solenoid valve on an intermediate portion, and cold water on the other end side. The cooling water pipe is provided with a cleaning pipe having a cleaning electromagnetic valve that branches from the front of the cold water valve and faces the hot water tank.

  In this configuration, when replacing with a new container, the faucet cock and the cold water solenoid valve are closed, and then the water joint is removed from the faucet cock and replaced with a new container. Connect the joint, and then open the cold water solenoid valve and the washing solenoid valve so that the drinking water that touched the air that entered the cold water solenoid valve and the cold water pipe above the cold water solenoid valve enters the hot water tank through the washing pipe. Therefore, the drinking water that has come into contact with the air in the cold water solenoid valve and in the cold water piping above the cold water solenoid valve is used without waste as drinking water, and is sterilized by the hot water in the hot water tank and is safe.

  According to the beverage dispenser of claim 1, when a new container is replaced, the germs that may enter the cold water piping above the cold water solenoid valve and the cold water solenoid valve are washed by providing a washing pipe, Since the washed drinking water is not discharged but is put into the hot water tank through the washing pipe, the paid drinking water is not wasted and is safe.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

  As shown in FIG. 1, reference numeral 11 denotes a bag-in-box type container in which mineral water such as natural water is enclosed. The container 11 is provided above a body (not shown), and a faucet cock 12 is attached. Reference numeral 13 denotes a common pipe. The common pipe 13 has a water joint 14 having one end connected to the faucet cock 2, and the other end is a common pipe for a cold water pipe and a water supply pipe to be described later.

  15 is a hot water tank, and this hot water tank 15 is provided below the container 11 and is configured higher with a margin above the upper limit water level. The hot water tank 15 has a heater 16 as a heating device at the bottom, a water level sensor 17 for preventing drinking water from entering the hot water tank 15 above the upper limit water level, and a lid 18 for preventing foreign matter from entering. Each is provided. The hot water tank 15 is provided with a hot water pipe 20 provided continuously with the common pipe 13 and facing the hot water tank 15 via a hot water electromagnetic valve 19. Further, the hot water tank 15 is provided with a hot water pipe 22 having a hot water valve 21 connected to a position slightly below the full water level.

  A cooling tank 23 is provided below the hot water tank 16. The cooling tank 23 is spirally arranged with a cooling pipe 24 acting as a condenser of a refrigeration cycle (not shown) and cooling the water in the cooling tank 23. Further, a cold water pipe 26 branched from the common pipe 13 and having a cold water solenoid valve 25 is provided. The chilled water pipe 26 is provided along the inner wall of the cooling tank 23 so as to partially pass through the cooling tank 23, and exchanges heat with the cooled cooling water in the cooling tank 23 through the chilled water valve 27. Is supposed to be extracted.

  Reference numeral 28 denotes a cleaning pipe. The cleaning pipe 28 is branched from the front of the cold water valve 27 provided in the cold water pipe 26, and the tip thereof faces the upper opening in the hot water tank 15 through the cleaning electromagnetic valve 29. It has become.

  An operation unit 30 is provided with a hot water extraction button 31 for extracting hot water in the hot water tank 15 and a cold water extraction button 32 for extracting cold water in the cold water pipe 26. Reference numeral 33 denotes a washing button. This washing button 33 opens the chilled water electromagnetic valve 25 and the washing electromagnetic valve 29 for a certain period of time when the container 11 is replaced, and is operated by a general user because it is managed only by a specific administrator. It is provided inside the difficult aircraft.

  Next, the operation of the present embodiment will be described.

  First, the operation of supplying drinking water to the hot water tank 15 at the first time of installation will be described. As shown in FIG. 1, the faucet cock 12 of the container 11 is opened by hand from the state where the piping is completed. At this time, since the water level sensor 17 on the hot water tank 15 side detects a drought state, the hot water electromagnetic valve 19 is opened and drinking water is supplied into the hot water tank 15. Then, the water level on the hot water tank 15 side is restricted by the water level sensor 17 so as not to be supplied above the upper limit water level, and is kept in a full water state. At this time, the cold water solenoid valve 25 is closed and no drinking water is supplied to the cold water pipe 26 side. The cooling water on the cooling tank 23 side is supplied by a bucket or the like from the upper opening of the cooling tank 23 while observing the water level.

  Next, the effect | action which extracts the hot water in the hot water tank 15 is demonstrated. The drinking water supplied into the hot water tank 15 is heated by the heater 16 and heated to an appropriate temperature. The heated hot water is extracted through the hot water pipe 22 by opening the hot water valve 21 by operating the hot water extraction button 31.

  Next, the effect | action which extracts cold water is demonstrated. The water in the cooling tank 23 is cooled in advance through the cooling pipe 24 by the operation of a refrigeration cycle (not shown). When the cold water extraction button 32 is operated in this state, the cold water solenoid valve 25 is opened and the cold water valve 27 is opened, so that the drinking water in the container 11 flows through the cold water pipe 26 and is cooled in the cooling tank. The heat is exchanged with the cooling water in 23, and the cold water is instantly extracted.

  Next, the exchange action when the drinking water in the container 11 runs out and is replaced with a new container 11 will be described. First, when the new container 11 is replaced, a power switch (not shown) is turned off, and the hot water electromagnetic valve 19 and the cold water electromagnetic valve 25 are closed. Then, after closing the faucet cock 12 by hand, the water joint 14 is removed from the faucet cock 12 and replaced with a new container 11. Then, the water joint 14 is connected to the faucet cock 12 of the new container 11. At this time, germs in the air enter the chilled water solenoid valve 25 and the chilled water pipe 26 above the chilled water solenoid valve 25 through the common pipe 13 from the water joint 14.

  Thus, the germs that have entered the cold water solenoid valve 25 and the cold water pipe 26 above the cold water solenoid valve 25 are washed by the following action. That is, when the faucet cock 12 is opened by hand and the washing button 33 is operated, the cold water electromagnetic valve 25 and the washing electromagnetic valve 29 are opened, and the chilled water electromagnetic valve 25 and the germs staying in the cold water pipe 26 above the cold water electromagnetic valve 25 are included. The drinking water is washed away into the hot water tank 15 through the cold water pipe 26 and the washing pipe 28 by the water pressure generated by the head position difference with the container 11, and the germs are sterilized and killed by the heat in the hot water tank 15. Therefore, the drinking water containing various germs is used as hot water without being wasted.

  A control device (not shown) may be provided with a timer, and the cleaning electromagnetic valve 19 may be opened / closed at a predetermined interval and automatically cleaned by this timer. In this case, even if miscellaneous bacteria remain in the cold water pipe 16 or the cold water solenoid valve 15, washing is performed at a predetermined interval, and the propagation of miscellaneous bacteria is further prevented.

  A similar effect can also be obtained by placing the container 1 in the lower part of the machine body and pumping it up with a pump.

It is a block diagram of the drink dispenser which shows one Embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 11 Container 12 Faucet cock 13 Common piping 14 Water joint 15 Hot water tank 16 Heater as a heating device 19 Hot water solenoid valve 20 Hot water piping 21 Hot water valve 22 Hot water pipe 23 Cooling tank 24 Cooling pipe as a cooler 25 Cold water electromagnetic valve 26 Cold water Piping 27 Chilled water valve 28 Cleaning piping 29 Cleaning solenoid valve

Claims (1)

A container having a faucet cock filled with drinking water, a hot water tank provided in a hot water pipe for extracting hot water, and a cooling tank provided in a cold water pipe for extracting cold water and having a cooler. In the beverage dispenser, the cold water pipe is composed of a water joint connected to the faucet cock on one end side, a cold water electromagnetic valve on the intermediate part, and a cold water valve for extracting cold water on the other end side, A drinking water dispenser characterized in that the piping is provided with a cleaning piping having a cleaning electromagnetic valve that branches off before the cold water valve and faces the hot water tank.

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