JP2010257014A - Beverage supply device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To frequently perform accurate washing by reducing drainage in the water piping in a beverage supply device. <P>SOLUTION: A circulation path where washing liquid can circulate through a reserver 2 and water piping 12 without passing through a hot water tank 6 is formed by providing a switching valve 14 in a water supply port 7, and providing a circulation line 15 communicating with the switching valve 14. Thus, it is possible to perform washing with small amounts of washing liquid, and to frequently perform washing since a waster liquid container 13 is hardly full. Also, it is possible to increase the peeling effects of dirt in the reserver 2 and the water piping 12, and to perform accurate washing by making the washing liquid circulate and flow. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to sterilization and washing of beverage piping in a beverage supply device such as a cup-type vending machine.

  Conventionally, this type of beverage supply device temporarily stores water supplied from the water supply in a reservoir, and supplies the stored water to the ice making machine and the hot water tank through a water line connecting the reservoir, the hot water tank, and the ice making machine. Supply. In the water stored in the reservoir, the residual chlorine decreases with time and the sterilizing effect decreases, so a chlorine generator that generates chlorine with an electrode connected to a DC power source is installed in the reservoir.

  In addition, hot water is always stored in the hot water tank, so it has a sterilizing effect. The hot water pipe is sterilized whenever hot water flows. If this is not done, the residual chlorine will be reduced and the environment will be prone to bacteria growth. Therefore, it is necessary to periodically clean and sterilize the water pipe.

  Therefore, in the conventional water pipe cleaning method for this type of beverage supply device, an operator injects a cleaning liquid or a sterilizing liquid into a reservoir and passes the water through a water line, or a direct current is applied to an electrode disposed in the reservoir. There is a method of generating high-concentration chlorine water in a reservoir with a chlorine generator that generates chlorine by applying water and passing this chlorine water through a water pipe (see, for example, Patent Document 1).

  FIG. 2 is a configuration diagram of a conventional beverage supply device described in Patent Document 1.

  As shown in FIG. 2, a water inlet valve 1, a reservoir 2, a pair of electrodes 3 disposed in the water stored in the reservoir 2, a DC power supply 4 communicating with the electrodes 3, and an ice making machine 5 A hot water tank 6, a hot water tank water supply port 7, a hot water valve 8, a pump 9, a valve 10, a drain valve 11, and a water pipe 12 for supplying water from the reservoir 2 to the ice making machine 5 and the hot water tank 6. And a drainage container 13.

  Regarding the beverage supply apparatus configured as described above, a method for cleaning the reservoir 2 and the water pipe 12 will be described below.

  When a voltage is applied to the electrode 3 by the DC power supply 4 with the water inlet valve 1 and the valve 10 closed, chlorine ions in tap water are converted to chlorine, and water having a high chlorine concentration is supplied to the reservoir 2 as a cleaning liquid. Generate. Then, when the valve 10 is opened and the water pump 9 is operated, chlorine water passes through the hot water tank 6 and the water pipe 12, and chlorine water is supplied from the hot water tank water supply port 7 to the hot water tank 6. After the hot water tank 6 is filled with chlorine water, the water pipe 12 is filled with chlorine water, and then the valve 10 is closed. After a predetermined time, the valve 10, the hot water valve 8 and the drain valve 11 are opened, and the cleaning liquid in the reservoir 2, the hot water tank 6 and the water pipe 12 is discharged to the drainage container 13. Thereby, sterilization and removal of water are performed.

When the drainage operation is completed, the hot water valve 8 and the drain valve 11 are closed. Thereafter, with the valve 10 opened, the water inlet valve 1 is opened, and water is supplied to the reservoir 2, the hot water tank 6 and the water pipe 12 for washing the washing liquid. As in the case of the cleaning liquid, the water inlet valve 1 is closed when the reservoir 2, the hot water tank 6 and the water pipe 12 are filled with water. The drain valve 11 is opened to perform drainage work, and the chlorine water adhering to the reservoir 2, the hot water tank 6, and the water pipe 12 is rinsed and washed. When all the water is drained, the drain valve 11 is closed. Rinse and drain the waste water until the rinse water is equal to the chlorine concentration of the water supplied from the water inlet valve 1 before energization.

Japanese Patent Laid-Open No. 4-90093

  However, in the conventional cleaning operation, in order to fill the water pipe with the cleaning water, the cleaning water enters the hot water tank, and the hot water tank must be cleaned and washed with water. The normal hot water tank has a capacity of 5L or more so that it can be continuously sold, and a large amount of drainage occurs after the end of one cleaning operation, so that the waste liquid container tends to become full and the cleaning operation cannot be performed frequently.

  Further, since the cleaning liquid is retained in the water pipe, kinetic energy due to the flow of the cleaning liquid cannot be obtained, the effect of removing dirt on the inner surface of the water pipe is small, the number of washing and water washing is increased, and the amount of waste liquid is increased.

  The present invention solves the above-mentioned conventional problems, and provides a beverage supply with a small amount of cleaning liquid for water piping, a high cleaning effect, a small amount of drainage and frequent cleaning operations, and a more reliable sanitation effect. An object is to provide an apparatus.

  In order to solve the above-mentioned conventional problems, the beverage supply device of the present invention is provided with a switching valve at the water supply port of the hot water tank, provided with a circulation path from the reservoir through the water pipe to the reservoir again, Can be washed while circulating.

  Accordingly, since the cleaning liquid can be circulated and cleaned only through the reservoir and the water pipe without entering the hot water tank, cleaning with a small amount of waste liquid and a high effect of removing dirt can be performed.

  The beverage supply apparatus of the present invention has a small amount of waste liquid and can obtain a more reliable cleaning effect in a short time.

The block diagram of the drink supply apparatus in Embodiment 1 of this invention. Configuration diagram of a conventional beverage supply device

  The invention according to claim 1 is a reservoir for storing water, a water pipe for supplying water from the reservoir to a hot water tank and an ice making machine, and a liquid installed in the water pipe for sending the liquid from the reservoir to the hot water tank side. A pump for draining water from the reservoir and the water pipe, a circulation line for returning the liquid sent from the pump to the reservoir again from the water pipe, and the liquid sent from the pump to the reservoir A switching valve that can switch between sending to the hot water tank side or sending to the reservoir side through the circulation line, and providing a circulation path that allows liquid to circulate between the reservoir and the water pipe, thereby cleaning the reservoir By circulating only the water pipe without washing into the hot water tank and washing the inside of the pipe, the washing liquid is small and the washing can be performed more reliably in a short time.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. The same reference numerals are given to the same configurations as those of the conventional example or the above-described embodiments, and the detailed description thereof will be omitted. The present invention is not limited to the embodiments.

(Embodiment 1)
FIG. 1 is a configuration diagram of a beverage supply device according to Embodiment 1 of the present invention.

  In FIG. 1, the switching valve 14 is provided at the water supply port 7 of the hot water tank 6. The circulation line 15 is a pipe that can return the liquid in the reservoir 2 to the reservoir 2 again via the switching valve 14, and forms a circulation path that can circulate the liquid in the reservoir 2 together with the water pipe 12. ing. The switching valve 14 can be switched to either the water supply side to the hot water tank 6 that passes water from the water pipe 12 to the hot water tank 6 or the circulation path side that passes water from the water pipe 12 to the circulation line 15. It is configured.

  About the drink supply apparatus comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.

  First, the drain valve 11 is opened with the valve 10 closed to drain the water in the water pipe 12.

  After all the liquid in the water pipe 12 is drained, the drain valve 11 is closed. Since the reservoir 2 normally stores water, when a voltage is applied to the electrode 3 by the DC power supply 4 with the water inlet valve 1 and the valve 10 closed, chlorine is generated at the electrode 3. Chlorine water having a high chlorine concentration is generated in the reservoir 2 as a cleaning liquid. After switching the switching valve 14 from the water pipe 12 to the circulation path side for passing the water through the circulation line 15, the valve 10 is opened and the pump 9 is operated, so that the cleaning liquid in the reservoir 2 passes through the water pipe 12 and the circulation line 15 and is stored again. Circulate through a circulation path that can be returned to 2, and pass water. After the cleaning liquid is circulated for an arbitrary time, the pump 9 is stopped, the drain valve 11 is opened, and the liquid staying in the circulation path including the water pipe 12 and the circulation line 15 and the reservoir 2 is drained to the drain container 13. When all the cleaning liquid in the circulation path is drained, the drain valve 11 is closed. Thereafter, the water inlet valve 1 is opened and water is supplied to the reservoir 2. Thereafter, the water is circulated through the circulation path in the same manner as when the cleaning liquid is circulated through the circulation path and then drained. With this operation, the cleaning solution is washed away with water. Circulating washing and draining with water are repeated until the chlorine concentration of the drainage water becomes equal to the chlorine concentration of the water before being supplied to the reservoir 2 when the water inlet valve 1 is opened.

  As described above, in the present embodiment, the switching valve 14 is provided in the water supply port 7 of the hot water tank 6, and the circulation path through which the liquid in the reservoir 2 can circulate through the water pipe 12 is provided. Since the cleaning liquid sent from the pump 9 does not pass through the hot water tank 6 when the reservoir 2 and the water pipe 12 are cleaned, there is no need to clean and rinse the large capacity hot water tank 6, and the reservoir 2 and water in which water flows Since only the pipe 12 can be circulated and washed, the washing liquid is small and the waste liquid is little, so that frequent washing can be performed. Further, since the cleaning liquid flows through the circulation path, the kinetic energy of the cleaning liquid has a greater effect of removing dirt such as bacteria and scales, so that the cleaning effect is higher and a reliable sanitation effect can be obtained.

2 Reservoir 5 Ice Maker 6 Hot Water Tank 9 Pump 10 Valve 11 Drain Valve 12 Water Pipe 14 Switching Valve 15 Circulation Line

Claims (1)

A reservoir for storing water, a water pipe for supplying water from the reservoir to a hot water tank and an ice making machine, a pump installed in the water pipe for sending liquid from the reservoir, and draining water from the reservoir and the water pipe A drain valve for performing the operation, a circulation line in which the liquid delivered by the pump returns to the reservoir from the water pipe, and the liquid delivered by the pump is sent to the hot water tank side or through the circulation line to the reservoir side. A beverage supply device provided with a switching valve capable of switching whether to send to a reservoir and provided with a circulation path through which liquid can circulate through the reservoir and the water pipe.

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