JPH11319836A - Supplying device of drink water - Google Patents

Abstract

PROBLEM TO BE SOLVED: To sterilize contamination or microorganisms in pipings when the probability of growth of microorganisms in the pipings is high because the device is not used for a long time or other reasons, by selecting a cleaning, sterilizing and electrolyzing mode to supply water high in chlorine concn. to the pipings. SOLUTION: When a drink water machine 1 is not used for a long time and probability of deposition of contamination or growth of microorganisms in the pipings is high, a button for cleaning and sterilization is depressed. Thereby, the electrode in a chlorine generator 2 is energized at a cleaning and sterilizing voltage for a predetermined time to increase the chlorine concn. of the water in a water reservoir. Then the valve 13 is manually released. Thereby, the flowing power in the water supply pipe 20 is detected by a flow rate sensor 20d to open a water supply valve 20a. When the valve 20a is opened, the water high in chlorine concn. in the water reservoir is supplied through a water supply pipe 24 to each dilution line 10 of the drink water machine 1. Thereby, contamination in the pipings is removed, microorganisms are sterilized, and the used water is discharged through a valve 13. After the removal of contaminants is completed, the valve 13 is closed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a beverage supply apparatus for sterilizing raw water such as tap water and groundwater with chlorine and supplying the same as drinking water for general household use or business use.

[0002]

2. Description of the Related Art Conventionally, as a chlorine generator used in this type of beverage supply apparatus, a chlorine generator in which a pair of flat electrodes composed of an anode and a cathode are provided in a cistern is generally known. According to this chlorine generator, a DC voltage is applied to each electrode at predetermined intervals by a timer, and the drinking water in the cistern is electrolyzed to generate effective chlorine, which is a component effective for sterilization.

However, in this chlorine generator, since the cistern is open or almost open, the generated effective chlorine is likely to evaporate to the outside, and there is a problem that bacteria and the like enter from outside to cause water pollution. .

[0004] In order to solve such problems, the applicant has proposed a chlorine generator according to Japanese Patent Application No. 9-277333. The chlorine generator includes a water reservoir for storing chlorine ion-containing water such as tap water pumped through a water supply line, and a pair of concentrically arranged water reservoirs at predetermined intervals and to which a DC voltage is applied. A cylindrical electrode of
A water passage for passing water in the water storage container between the inner and outer electrodes, and a water supply passage for supplying water passing through the water passage to a faucet, a terminal side of a beverage machine, etc. This is a chlorine generator that applies a DC voltage to electrolyze chlorine ion-containing water to produce water containing available chlorine.

[0005] According to this chlorine generator, a cistern type chlorine generator that contains available chlorine in water stored in a water storage tank when water is stopped, and a flowing water type chlorine generator that contains available chlorine when water is supplied. Since both of these functions are provided, water generated by sterilization can be supplied stably, and the size can be reduced compared to a cistern type chlorine generator.

[0006]

By the way, in a beverage supply device equipped with such a chlorine generator, after adding available chlorine to water by the chlorine generator, the water is supplied to a terminal such as a faucet or a beverage machine. When the piping at the terminal becomes longer or the unused time at this terminal becomes longer, chlorine in the piping may self-decompose or chlorine may decrease due to reaction with the piping material. there were.

Further, since the effective chlorine concentration of tap water differs depending on the region where the beverage supply device is used, microorganisms easily propagate in the piping in some regions. There was a problem of getting dirty.

[0008] Of course, in order to suppress the growth of microorganisms in drinking water, the chlorine generator is controlled to increase the effective chlorine concentration, but the effective chlorine concentration is usually 0.1 to 1.
Since it is as low as 5 ppm, it has been difficult to remove these dirt components in the piping.

SUMMARY OF THE INVENTION In view of the above-mentioned conventional problems, it is an object of the present invention to remove dirt from piping even when the unused period is long.
Another object of the present invention is to provide a beverage supply device capable of preventing the propagation of bacteria.

[0010]

SUMMARY OF THE INVENTION In order to solve the above-mentioned conventional problems, the present invention is directed to a water storage container for storing water containing chlorine ions such as tap water pumped through a water supply pipe; A pair of cylindrical electrodes that are concentrically arranged at predetermined intervals in the water storage container and to which a DC voltage is applied, a water passage that passes water in the water reservoir between the inner and outer electrodes, and a water passage that It has a water supply pipe that feeds the water that has passed through the water reservoir, and a flow rate detection means that detects the flowing water in the water supply pipe, and applies a DC voltage to each electrode to electrolyze the chlorine ion-containing water. A chlorine generator that produces water containing available chlorine, a kitchen water pipe for domestic use that supplies water with an available chlorine concentration sent through a water supply line, or various beverages using water with an available chlorine concentration In a beverage supply device provided with a terminal unit comprising Arbitrary selection of flowing water electrolysis mode, in which DC voltage is applied to each electrode when water flows in the pipeline, and water stop electrolysis mode, in which DC voltage is applied to each electrode when water is stopped in the water flow pipeline It has a control means having a cleaning sterilization electrolysis mode in which a DC voltage is applied to each electrode based on a signal from the energization selecting means.

According to the present invention, the effective chlorine concentration of the water in the water storage container is maintained at a predetermined value when the water is stopped (water stop electrolysis mode), while the flowing water (during the supply of the beverage) is supplied with direct current again. A voltage is applied to make the effective chlorine concentration suitable for beverages (flowing water electrolysis mode). Such a water stoppage electrolysis mode and a running water electrolysis mode are repeatedly performed, and a beverage having an effective chlorine concentration is supplied to the terminal unit.

When the piping to the terminal is long or when the unused time is long, or when the equipment or the piping is used for a long time, the water pipe at the terminal is dirty and microorganisms and the like are contained in the piping. May breed.

In such a case, each time, the electrification selecting means is selected to perform the cleaning sterilization electrolysis mode. In this cleaning sterilization electrolysis mode, a DC voltage is applied to the water in the water storage container,
The chlorine concentration in this water increases. Here, the faucet is opened in the domestic kitchen water pipe (terminal section), and the dispensing valve is opened in the drinking machine (terminal section) used for business use. Thereby, this high chlorine concentration water flows into the kitchen water pipe or the pipe of the beverage machine,
Since they are discharged from the ends, the microorganisms that have propagated in the pipes at these terminal portions are directly sterilized, and the nutrients that contribute to the propagation of the microorganisms are also removed at the same time.

In the cleaning and disinfecting electrolysis mode according to the first aspect of the present invention, the cleaning and disinfecting effect is improved by making the chlorine concentration higher than in the water stop electrolysis mode or the running water electrolysis mode (claim 2). As the concentration increasing means, a structure for setting the voltage value high (Claim 3), a structure for setting the current value high (Claim 4), and a structure for setting the energization time longer (Claim 5) are adopted. You.

The invention of claim 6 is the first to fifth aspects of the present invention.
In the beverage supply device according to the present invention, a return line connecting the water supply line of the chlorine generator and the line of the terminal portion is provided, and the water supply line, the water supply line, the water supply line, the line of the terminal portion, and the return line are provided. A structure that forms a circulation line that is sequentially connected to a pipeline and a water supply pipeline, and that has a pump unit that sequentially circulates water in the circulation pipeline, and a valve unit that regulates and releases water from flowing into a return pipeline. It has become.

According to the present invention, when it is determined that the water stoppage time is long, the regulation of the flowing water to the return pipe is released by the valve means, and the pump means is driven. As a result, water in the conduit of the terminal portion can be returned to the water storage container, and propagation of microorganisms in the conduit can be prevented.

According to a seventh aspect of the present invention, in the beverage supply device according to the sixth aspect, there is provided a timer means for measuring a water stoppage time in the water passage pipe, and the control means has determined that the water stoppage time has exceeded the timer set time. At this time, the pump means and the valve means are configured to control the water on the downstream side of the chlorine generator to be returned into the water storage container through the circulation pipeline.

According to the present invention, when the water stoppage time is long, the water in the pipe of the terminal portion can be automatically returned to the water storage tank through the circulation pipe.

According to an eighth aspect of the present invention, in the beverage supply apparatus according to the sixth aspect, there is provided a timer means for measuring a water stoppage time in the water passage, and the control means has determined that the water stoppage time has exceeded the timer set time. At this time, the pump means and the valve means return the water on the downstream side of the chlorine generator into the water storage container through the circulation line, and control to set the washing / sterilizing electrolysis mode.

According to the present invention, the regulation of the flowing water to the return line is released by the valve means, and when the pump means is driven, control is performed in the washing and sterilizing electrolysis mode.

As a result, the water in the pipe of the terminal section returns to the water storage vessel, while the water having a high chlorine concentration in the water storage vessel sequentially circulates from the water supply pipe to the pipe of the terminal section. The road is cleaned and sterilized.

According to a ninth aspect of the present invention, there is provided an image processing apparatus comprising:
In the beverage supply device according to the above, the timer means is configured to reset the timer set time and start the time measurement when the flow rate detecting means detects flowing water during the time measurement.

According to the present invention, when the timer means measures the water stoppage time, for example, when a beverage is sold in a beverage machine, the measured time is cleared and the time measurement is started again. As a result, unnecessary cleaning / sterilization operations are avoided, and energy saving and stabilization of the chlorine concentration in the chlorine generator and the piping can be achieved.

According to a tenth aspect of the present invention, in the beverage supply device according to any one of the seventh to ninth aspects, the timer means can set at least two or more timer setting times.

The degree of decrease in the chlorine concentration of water and the degree of contamination of the piping depend on whether the water supply pipe is directly connected to a water supply pipe or an elevated water tank supply method (installation style), etc., as well as the outside air temperature, water temperature, water quality, etc. Water environment). According to the present invention, the timer setting time corresponding to such various environments can be selected, so that the piping and the like of the terminal portion can be effectively cleaned and sterilized.

According to an eleventh aspect of the present invention, in the beverage supply device according to any one of the seventh to ninth aspects, a temperature sensor for detecting a water temperature of the chlorine generator is provided, and the control means sets a timer set time based on the temperature detected by the temperature sensor. Is determined.

According to the present invention, microorganisms can easily propagate,
In addition, even in a summer or a region where the water temperature is high where impurities (dust, algae, etc.) are likely to be mixed into the piping, the time until the cleaning and sterilization operation is automatically determined, and the cleaning and sterilization of the piping are appropriately performed.

[0028]

1 to 4 show a first embodiment of a beverage supply device according to the present invention. FIG. 1 is a water circuit diagram of a beverage supply device equipped with a chlorine generator, and FIG. FIG. 3 is a sectional view of the chlorine generator, FIG. 3 is a block diagram showing a drive control circuit of the beverage supply device, and FIG. 4 is a control flowchart of the beverage supply device.

First, the beverage supply device will be described with reference to FIG. The beverage supply device generates, for example, a juice, a coffee beverage, or the like based on a sales signal, and supplies a commercial beverage machine (terminal unit) 1 for selling the beverage, and supplies water having an effective chlorine concentration to the beverage machine 1. It has a structure having a chlorine generator 2 and produces and sells a coffee beverage or the like using water having an effective chlorine concentration.

The beverage machine 1 has a dilution water line 10 for supplying dilution water, a carbonated water line 11 for producing carbonated water, and a syrup line 12 for supplying syrup. , 12 supplies a beverage to a dispensing valve (hereinafter, referred to as a valve) 13, and the beverage is poured into the cup 14 from the valve 13.

Here, the dilution water line 10 draws in water from the chlorine generator 2 through a water guide valve 10a by a water pump 10b, cools the water by a first cooling coil 10c, and cools the valve 13
To be supplied. On the other hand, the carbonated water line 11
Has a carbonator 11a, draws a part of the water cooled by the first cooling coil 10c into the carbonator 11a, and then cools it by the second cooling coil 11b and supplies it to the valve 13. Here, carbon dioxide gas is supplied to the carbonator 11a from the carbon dioxide cylinder 11c, and the water supplied to the valve 13 is carbonated water. Further, the syrup line 12 is a syrup tank 12a.
Is cooled by the third cooling coil 12 b and supplied to the valve 13. Here, syrup tank 1
Carbon dioxide gas can be supplied to 2a, and can also be supplied to the valve 13 as a syrup containing carbonic acid.

On the other hand, tap water (raw water containing chlorine ions) is supplied to the chlorine generator 2 through a water supply pipe (water supply pipe) 20. The water supply pipe 20 has a water supply valve 20a for regulating and canceling the inflow of the tap water, a pre-filter 20b for removing turbidity components, chlorine odor, mold odor and the like in the tap water, a check valve 20c, and a flow rate sensor 24b. is set up. The flow sensor 20d outputs a detection signal when the flow rate of water in the water supply pipe 20 becomes a predetermined value or more (the valve 13 is opened).

Here, the chlorine generator 2 has a closed cylindrical water storage container 21 as shown in FIG. The water storage container 21 includes a housing 22 having an opening at a lower opening thereof, and a lid 23 which is screwed to the housing 22 to be in a sealed state. An inflow port 23 a is provided near the periphery of the lid 23, and the water supply pipe 20 is provided. The pumped tap water is guided into the housing 22. The outlet 23 is located at the center of the lid 23.
b is provided, and water stored in the housing 22 is supplied to the dilution water line 10 of the beverage machine 1 through a water supply pipe 24 (water supply pipe).

In the water storage container 21 thus configured, an electrode unit 25 is provided on the lid 23.
The electrode unit 25 has a cylindrical inner electrode 25a and an outer electrode 25b arranged concentrically outside the inner electrode 25a with a predetermined gap (3 to 5 mm) therebetween. It is formed of an electrode material coated with platinum or a platinum-based material (including platinum-iridium) based on a titanium material. In addition, each of the electrodes 25a,
An annular electrode fixing plate 25c is filled in the upper opening between the electrodes 25b to maintain a proper gap between the electrodes 25a and 25b, while the electrode cap 25d is inserted in the upper opening of the inner electrode 25a.
To prevent water from flowing through the upper opening of the inner electrode 25a.

An entrance hole 25e is formed in the electrode fixing plate 25c, while an exit hole 25e is formed below the inner electrode 25a.
f is formed, and water in the water storage container 21 is
e, flows between the electrodes 25a and 25b, and further flows through the outlet hole 25f into the inside of the inner electrode 25a. The inlet hole 25e, the gap between the electrodes 25a and 25b, and the outlet hole 25f constitute a water flow conduit for guiding water outside the outer electrode 25b to the inside of the inner electrode 25a. Electrode terminals 25g and 25h are provided below the electrodes 25a and 25b.
g and 25h pass through the lid 23 in a sealed state and are connected to a DC power supply.

The cover 23 is formed of an electrical insulator, for example, resin. In addition, the water pipe 24
The check valve 24a is installed as shown in FIG.

Next, a drive control circuit of the beverage supply device according to the present embodiment will be described with reference to the block diagram of FIG.

The beverage supply device according to the present embodiment is automated by a control device 3 such as a microcomputer, and the control device 3 includes a central processing unit (CPU) 30a,
It has a memory 30b for storing a control program, and I / O ports 30c and 30d for inputting and outputting signals. The I / O port 30c inputs signals from the flow rate sensor 20d and the cleaning / sterilization button 4, and the I / O port 30d outputs a signal to the power output adjustment circuit 5, and the power output adjustment circuit 5
The power output to each of the electrodes 25a and 25b is adjusted through the power supply.

Here, when the control device 3 detects the flow rate of the flow rate sensor 20d (detects that the valve 13 has opened and the water in the water supply pipe 24 has flowed to the beverage machine 1), each electrode of the chlorine generator 2 Control is performed such that a DC voltage (for example, 20 V) is applied to the power supply circuits 25a and 25b through the power supply output adjustment circuit 5 (flowing water electrolysis mode). When the flow sensor 20d detects that the flowing water has ended (detects that the valve 13 has closed and the water in the water pipe 24 has stopped), the DC voltage (for example, 10V) is applied (water-stop electrolysis mode). Further, in accordance with an input signal of the cleaning / sterilization button 4, control is performed such that a DC voltage (for example, 30 V) is applied through the power supply output adjustment circuit 5 for the set time T1 (cleaning / sterilization electrolysis mode). When the constant current control is performed, the current may be switched to, for example, 1.0 A in the flowing water electrolysis mode, to, for example, 0.5 A in the water stop electrolysis mode, and to, for example, 5.0 A in the cleaning and sterilization electrolysis mode.

In the cleaning / sterilizing electrolysis mode, the amount of available chlorine generated in the water storage container 21 is set to be larger than the amount generated by ordinary water stoppage electrolysis, for example, by the amount of chlorine ions in tap water used. Although different, several ppm or more is desirable. As a setting method, a current (voltage) value capable of generating chlorine of several ppm or more is corrected from a relational expression obtained in advance so as to increase the generation of available chlorine by electrolysis. I have.

The control of the cleaning / sterilizing electrolysis mode, which is a feature of the present invention, will be described with reference to the flowchart of FIG.

In the beverage supply device according to the present embodiment, when the unused state of the beverage machine 1 is likely to accumulate dirt in the pipes for a long period of time or when microorganisms are likely to propagate, the cleaning and sterilizing button 4 is operated. Press (S1). As a result, the cleaning sterilization voltage (or cleaning sterilization current) is applied to each of the electrodes 25a and 25b.
Then, electricity is supplied for the set time T1 to increase the chlorine concentration of the water in the water storage container 21 (S2 to S4). Thereafter, the valve 13 is manually opened (S5). Thereby, the flow rate sensor 20d detects the flowing water force in the water supply pipe 20, and the water supply valve 20d
a is opened (S6, S7). By opening the water supply valve 20a, high-chlorine-concentration water in the water storage container 21 flows to each dilution water line 10 of the beverage machine 1 through the water supply pipe 24 to remove dirt in the pipes, sterilize microorganisms, and Discharge from 13

When the removal of the contaminants is completed, the valve 13 is closed (S8). Thereby, the flow sensor 20d detects that the flow of water in the water supply pipe 20 has stopped (S9), and closes the water supply valve 20a (S1).
0).

In this embodiment, the current (voltage) value to each of the electrodes 25a and 25b in the cleaning sterilization electrolysis mode is set higher than the current (voltage) value in the flowing water electrolysis mode and the water stop electrolysis mode. However, when the current (voltage) value is used for maintaining the effective chlorine in the pipe, the current (voltage) value may be set to the current (voltage) value in the flowing water electrolysis mode or the water stop electrolysis mode.

FIG. 5 shows a second embodiment of the beverage supply device according to the present invention. In the second embodiment, the current (voltage) value for the electrodes 25a and 25b is set to the current (voltage) value in the water-stop electrolysis mode, and the current setting time T2
Is set to be longer than the set time T1 of the first embodiment.

By setting the energization time to each of the electrodes 25a and 25b to be long as described above, the chlorine concentration of the water in the water storage container 21 is increased, so that it is possible to effectively remove dirt from the piping and sterilize the piping. it can. Other configurations and operations are the same as those of the first embodiment.

FIG. 6 shows a third embodiment of the beverage supply apparatus according to the present invention. In the first and second embodiments, when the cleaning / sterilization button 4 is pressed, the electrodes 25a, 25
In this embodiment, the current is supplied when the valve 13 is opened after the cleaning / sterilization button 4 is pressed.

That is, the cleaning / sterilization button 4 is pressed and the valve 13 is pressed.
When manually opening the water supply pipe 20d, the flow sensor 20d
Of the flowing water is detected, and the water supply valve 20a is opened (S1 to S
4). By opening the water supply valve 20a, each of the electrodes 25a, 25
b, a cleaning sterilization current is supplied, and the flow sensor 20d detects that there is no more flowing water (the valve 13 is manually closed), and the current supply is continued until the water supply valve 20a is closed (S).
5 to S8). In this way, electricity may be supplied in synchronization with the opening and closing of the water supply valve 20a to remove dirt in the piping.

When maintaining the available chlorine in the pipe, the current (voltage) value is changed to the current (voltage) in the flowing water electrolysis mode or the water stop electrolysis mode as in the first embodiment.
It should be a value.

FIGS. 7 to 9 show a fourth embodiment of the beverage supply apparatus according to the present invention. In the first embodiment, high-concentration effective chlorine is generated in the cleaning / sterilizing electrolysis mode, and water having this chlorine concentration is supplied to the valve 13.
Through the drainage.

On the other hand, in the fourth embodiment, FIG.
The water pump 24c is installed in the water supply pipe 24 as shown in FIG. The return pipe 6 connects a pipe (water supply pipe 20) on the upstream side of the chlorine generator 2 with the dilution water line 10 near the valve 13 through three-way valves 61 and 62. The other piping configuration is the same as that of the first embodiment.

FIG. 8 is a block diagram showing a drive control circuit of the beverage supply apparatus according to the fourth embodiment, and shows a drive control circuit in the washing and sterilizing electrolysis mode. In the fourth embodiment, the three-way valves 61 and 62 are operated based on an input signal from the cleaning / sterilization button 4.
Switches the flow path, and controls the driving of the water pump 24c. The control device 3 has a built-in timer, and the power supply start time (set time T3) to each electrode 25a, 25b, the power supply continuation time (set time T4) to each electrode 25a, 25b, and the three-way valve 61, The drive time of 62 and the water pump 24c (set time T5) is set and controlled.

The drive control of the beverage supply apparatus according to the fourth embodiment will be described with reference to FIG. That is, after the power is turned on, the apparatus enters a standby state and monitors whether the cleaning / sterilizing button 4 is pressed (S
1). When the cleaning / sterilization button 4 is pressed, the timer starts measuring a set time T3, and when the set time T3 has elapsed, the timer is reset (S2 to S4). on the other hand,
When the flow rate sensor 20d detects the flowing water power during the measurement of the set time T3 (when the valve 13 is opened and the drink sales signal is input), the timer is reset and the measurement of the set time T3 is started again. (S5, S6).

When the counting of the set time T3 is completed and the timer is reset in step 4 as described above, the cleaning and sterilizing current is applied to the electrodes 25a and 25b for the set time T4 (S7 to S9). ). Thereby, the water storage container 21
The chlorine concentration in the water inside increases. These electrodes 25a, 25
When the energization of b is completed, the three-way valves 61 and 62 are driven to switch the flow path (switch so that water flows to the return pipe 6 side), and the water pump 24c is driven for the set time T5 ( S10 to S12).

Thus, the water storage container 21 of the chlorine generator 2
The high-chlorine-concentration water flows sequentially through the water supply line → the water supply line 24 → the dilution water line 10 → the return line 6 → the water supply line 20 → the water storage container 21 and the circulation line 7, whereby the chlorine generator 2 The downstream piping is cleaned and the microorganisms are sterilized. When the high chlorine concentration water has finished circulating,
The direction valves 61 and 62 are returned to their original positions, and the driving of the water pump 24c is stopped (S13).

When only the effective chlorine concentration in the pipe is to be maintained, a normal water stoppage and flowing water electrolysis current value is applied instead of the cleaning sterilization current as in the third embodiment. Is also good. Instead of applying a higher current (washing / sterilizing current) than the water stopping electrolysis means, the set time T4 for electrolysis may be made longer.

FIG. 10 shows a fifth embodiment of the beverage supply apparatus according to the present invention.
1 shows an embodiment. In the fourth embodiment, after the water having a high chlorine concentration is generated in the water storage container 21, the generated water is circulated through the circulation line 7.
In the embodiment, the generated water is circulated to the circulation line 7 simultaneously with the generation of the water having a high chlorine concentration.

That is, after the power is turned on, a standby state is entered, and it is monitored whether or not the cleaning / sterilizing button 4 has been pressed (S1).
When the cleaning / sterilization button 4 is pressed, the timer starts measuring a set time T6, and when the set time T6 has elapsed, the timer is reset (S2 to S4). On the other hand, when the flow rate sensor 20d detects the flowing water power during the counting of the set time T6 (when the valve 13 is opened and the drink sales signal is input), the timer is reset and the counting of the set time T6 is performed again. Is started (S5, S6).

When the counting of the set time T6 is completed and the timer is reset in step 4 as described above, 3
The flow paths are switched by driving the direction valves 61 and 62 (return line 6
Then, the water pump 24c is driven (S7, S8). Then, each electrode 25a, 25b
The cleaning sterilization current is supplied for the set time T7 (S9 to S9).
S11). Thereby, the chlorine concentration of the water in the water storage container 21 increases, and the water having the high chlorine concentration is supplied to the circulation line 7.
, And the piping on the downstream side of the chlorine generator 2 is washed, and the microorganisms are sterilized. When the circulation of the high-chlorine-concentration water ends, the three-way valves 61 and 62 are returned to their original positions, and the driving of the water pump 24c is stopped (S12). The other configuration and operation are the same as in the fourth embodiment. 11 to 14 show a sixth embodiment according to the beverage supply device of the present invention. In the fourth and fifth embodiments, when the cleaning / sterilizing button 4 is pressed, the cleaning / sterilizing electrolysis mode is performed according to the set time of the timer. In the present embodiment, the cleaning / sterilizing is performed by the interval setting button 8. An interval time which is a transition time to the electrolysis mode is set.

FIG. 12 shows an example of the interval setting button 8. The interval setting button 8 shown in FIG. 12 has six LED switches 81, measures the water temperature in the water storage container 21, and presses the switch 81 as shown on the left side of FIG. The switch 81 is pushed as shown in the center when the dot display point is ON) and when the temperature is between 12 ° C. and 28 ° C. When the temperature is 28 ° C. or more, the switch 81 is pushed as shown on the right. Here, since the propagation of microorganisms increases as the water temperature rises, the water temperature is set to be short when the water temperature is 28 ° C. or more and long when the water temperature is 12 ° C. or less. Thereby, the set time corresponding to the water temperature is reached. On the other hand, FIG. 13 uses an interval setting dial 8 ′ instead of the interval setting button 8. In the dial 8 ', the set time is set in days.

FIG. 1 shows a washing and sterilizing electrolysis mode performed by using such interval setting means (buttons and dials).
This will be described with reference to FIG. That is, after the power is turned on, a standby state is entered, and it is monitored whether the cleaning / sterilizing button 4 has been pressed or the interval setting button 8 has been pressed (S1, S1).
S2). When this interval setting button 8 is pressed, the timer starts measuring the interval setting time T8,
When the set time T8 has elapsed, the timer is reset (S3 to S5). On the other hand, when the flow rate sensor 20d detects the flowing water power while the set time T8 is being measured (when the valve 13 is opened and the drink sales signal is input), the timer is reset and the set time T8 is measured again. (S6,
S7).

When the counting of the set time T8 is completed and the timer is reset in step 5 as described above, 3
The flow paths are switched by driving the direction valves 61 and 62 (return line 6
The water pump 24c is driven (S8, S9). Then, each electrode 25a, 25b
The cleaning / sterilizing current is supplied for the set time T9 (S10).
To S12). Thereby, the chlorine concentration of the water in the water storage container 21 increases, and the water having the high chlorine concentration circulates through the circulation pipe 7. Further, in this embodiment, the chlorine concentration in the pipe is reduced due to the effect of the place of use (tap water supply method: direct connection to a water pipe, supply of an elevated water tank, water quality, etc.), use environment (temperature, water temperature, water quality, etc.), contamination of the pipe, etc. Interval time until cleaning and sterilization can be set. The other configuration and operation are the same as in the fifth embodiment.

FIGS. 15 and 16 show a seventh embodiment of the beverage supply apparatus according to the present invention. In the sixth embodiment, the transition time to the cleaning and sterilizing electrolysis mode is set by the interval setting button 8 and the interval setting dial 8 ′. In the present embodiment, the temperature sensor 9 for detecting the water temperature in the water storage container 21 detects the temperature. The interval time is automatically calculated and determined based on the temperature. Here, the interval time is calculated and determined so as to become shorter as the water temperature rises.

The drive control will be described with reference to the flowchart of FIG. In other words, after the power is turned on, it enters the standby state,
When the cleaning / sterilizing button 4 is pressed, the interval time T10 is calculated based on the temperature detected by the temperature sensor 9, and further determined (S1, S2). Then, the timer starts measuring the interval set time T10, and when the set time T10 has elapsed, the timer is reset (S3 to S5). on the other hand,
When the flow rate sensor 20d detects the flowing water power during the measurement of the set time T10 (when the valve 13 is opened and the drink sales signal is input), the timer is reset and the measurement of the set time T10 is started again. (S6, S7). The control after the end of the measurement of the set time T10 is the same as in the sixth embodiment (S8 to S13).

As described above, according to the present embodiment, it is possible to operate the cleaning / sterilizing electrolysis mode at the optimum effective chlorine concentration based on the water temperature in the water storage container 21. Other configurations and operations are the same as those in the sixth embodiment.

In each of the above embodiments, an example in which water is supplied to a drinking machine has been described. However, the present invention may be used for supplying drinking water for home use, and further, sterilization of medical instruments and the like. It may be used as water.

[0067]

As described above, according to the present invention,
When there is a danger of microorganisms proliferating in the piping, such as when the unused period becomes longer, the cleaning / sterilizing electrolysis mode is selected. Thereby, since water with a high chlorine concentration can be fed into the pipe, dirt and microorganisms in the pipe can be sterilized.

[Brief description of the drawings]

FIG. 1 is a water circuit diagram of a beverage supply device according to a first embodiment.

FIG. 2 is a sectional view of a chlorine generator.

FIG. 3 is a block diagram showing a drive control circuit of the beverage supply device according to the first embodiment.

FIG. 4 is a control flowchart of the beverage supply device according to the first embodiment.

FIG. 5 is a control flowchart of the beverage supply device according to the second embodiment.

FIG. 6 is a control flowchart of a beverage supply device according to a third embodiment.

FIG. 7 is a water circuit diagram of a beverage supply device according to a fourth embodiment.

FIG. 8 is a block diagram showing a drive control circuit of a beverage supply device according to a fourth embodiment.

FIG. 9 is a control flowchart of a beverage supply device according to a fourth embodiment.

FIG. 10 is a control flowchart of a beverage supply device according to a fifth embodiment.

FIG. 11 is a block diagram showing a drive control circuit of a beverage supply device according to a sixth embodiment.

FIG. 12 is an explanatory diagram showing an example of an interval setting unit.

FIG. 13 is an explanatory diagram showing another example of the interval setting means.

FIG. 14 is a control flowchart of the beverage supply device according to the sixth embodiment.

FIG. 15 is a block diagram showing a drive control circuit of the beverage supply device according to the seventh embodiment.

FIG. 16 is a control flowchart of the beverage supply device according to the seventh embodiment.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Beverage machine, 2 ... Chlorine generator, 3 ... Control device, 4 ... Washing sterilization button, 6 ... Return line, 7 ... Circulation line, 8 ... Interval setting button, 9 ... Temperature sensor.

Claims (11)

[Claims] 1. A water storage container for storing chlorine ion-containing water such as tap water pumped through a water supply line, and a pair of concentrically arranged predetermined distances in the water storage container to which a DC voltage is applied. A cylindrical electrode, a water passage for passing water in the water reservoir between the inner and outer electrodes, a water passage for supplying water passing through the water passage to the outside of the water reservoir, A chlorine generator having flow rate detecting means for detecting flowing water in the water flow conduit, applying a DC voltage to each electrode to electrolyze chlorine ion-containing water to produce water containing available chlorine, A beverage supply comprising: a kitchen water pipe for domestic use for supplying water with an effective chlorine concentration sent through a water pipe, or a terminal unit such as a beverage machine for producing various beverages using water with an effective chlorine concentration. In the apparatus, a DC voltage is applied to each of the electrodes during flowing water in the water pipe. Flowing water electrolysis mode, a water-stop electrolysis mode in which a DC voltage is applied to each electrode when water is stopped in the water passage, A beverage supply device comprising a control unit having a cleaning sterilization electrolysis mode for applying a DC voltage to each electrode. 2. The apparatus according to claim 1, wherein the control unit controls the chlorine concentration in the cleaning sterilization electrolysis mode to be higher than at least one of the flowing water electrolysis mode and the water stoppage electrolysis mode. Beverage supply equipment. 3. The control means sets an applied voltage to each of the electrodes in the cleaning / sterilizing electrolysis mode higher than at least one of the applied voltage in the flowing water electrolysis mode or the water stop electrolysis mode. The beverage supply device according to claim 2, wherein 4. The method according to claim 1, wherein the control unit sets an energizing current to each of the electrodes in the cleaning / sterilizing electrolysis mode to be higher than at least one of the flowing water electrolysis mode and the water stop electrolysis mode. The beverage supply device according to claim 2, wherein 5. The method according to claim 1, wherein the control unit sets an energization time to each of the electrodes in the cleaning sterilization electrolysis mode longer than at least one of the flowing water electrolysis mode and the water stop electrolysis mode. The beverage supply device according to claim 2, wherein 6. A return line for connecting the water supply line of the chlorine generator to a line of the terminal portion, wherein the water supply line, the water passage line, the water supply line, and the terminal portion are provided. Pipeline,
A pump means for forming a circulation line sequentially connected to the return line and the water supply line, and for sequentially circulating water in the circulation line; and a valve for regulating and releasing the inflow of water into the return line 6. The method according to claim 1, further comprising:
The beverage supply device according to any one of the preceding claims. 7. A circulating line provided by the pump unit and the valve unit when the water stopping time exceeds a timer set time, the timer unit being provided with a timer unit for measuring a water stopping time in the water flowing line. The beverage supply device according to claim 6, wherein the water is controlled to return the water on the downstream side of the chlorine generator to the inside of the water storage container through the water. And a timer means for measuring a water stoppage time in said water passage, wherein said control means controls said circulation line by said pump means and valve means when the water stoppage time exceeds a timer set time. 7. The beverage supply device according to claim 6, wherein the water is supplied to the downstream side of the chlorine generator into the water storage container through the control unit so as to set the cleaning / sterilizing electrolysis mode. 9. The timer according to claim 7, wherein the timer means resets a timer set time and starts time measurement when the flow rate detection means detects flowing water during the time measurement. Beverage supply device. 10. The beverage supply apparatus according to claim 7, wherein the timer means is configured to set at least two or more of the timer set times. 11. The apparatus according to claim 7, further comprising a temperature sensor for detecting a water temperature of said chlorine generator, wherein said control means determines said timer setting time based on a temperature detected by said temperature sensor. The beverage supply device according to any one of the preceding claims.