JPH10235359A - Sterilizing and washing of continuous electrolytic water-making apparatus, and continuous electrolytic water making apparatus equipped with washing mechanism for the execution - Google Patents

Abstract

PROBLEM TO BE SOLVED: To sterilize a water supply pipeline, cathode chamber and drain pipe on the downstream side of an adsorbing water purifier by passing acidic water formed in an anode chamber through an electrolytic cell from the water supply pipeline on the side of a cathode chamber containing a microfilter to discharge the same from a cathode chamber drain pipe. SOLUTION: A water supply pipeline 8 on the side of a cathode chamber and the water supply pipeline 9 on the side of an anode chamber are respectively independently connected to the water supply sides of the cathode chamber 6 and anode chamber 7 of a diaphragm electrolytic cell 2 and a cathode chamber drain pipeline 10 and an anode chamber drain pipe 11 are respectively independently provided to the drain sides of the cathode chamber 6 and the anode chamber 7. The valve disc 24 of a passage control means 18 is provided at a washing position, that is, stops the supply of raw water to a water supply pipeline 8b on the side of the cathode chamber containing a microfilter and allows a water supply port 22 and a drain port 23 to communicate with each other to drain acidic water formed in the anode chamber 7 from the cathode chamber 6 and the drain pipeline 10 through the water supply pipeline 8b on the side of the cathode chamber. By this constitution, the water supply pipeline 8b on the side of the cathode chamber, cathode chamber 6 and drain pipeline 10 on the downstream side of an adsorbing water purifier 12 an be sterilized and washed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for sterilizing and cleaning a continuous flow type electrolyzed water generating apparatus using a diaphragm electrolyzer, and a continuous flow type electrolyzed water generating apparatus provided with a cleaning mechanism for performing the method. In particular, a continuous electrolysis system equipped with a mechanism to wash and sterilize the water from the water supply line in the cathode chamber to the cathode chamber drain pipe through the cathode chamber with the acidic water (hypochlorous acid water) generated in the anode chamber during the cleaning operation. It relates to a water generator.

[0002]

BACKGROUND OF THE INVENTION Water supplied from a water supply line is electrolyzed in a diaphragm electrolytic cell, and alkaline water generated in a cathode chamber of the electrolytic cell and acidic water generated in an anode chamber are supplied from a pair of drainage lines. The continuous electrolyzed water generator that discharges deposits such as calcium on the cathode chamber and the drain pipe of the cathode chamber during long use, thereby preventing the electrolysis efficiency. In addition, the electrolyzed water generator, in which an adsorption water purifier such as activated carbon is interposed in the water supply line, removes residual chlorine in raw water such as tap water by the adsorption water purifier.
Since the sterilizing power is reduced, various bacteria easily propagate in the water passage including the pipeline downstream from the adsorption water purifier. For this reason, it is necessary to wash and sterilize the water circuit after a predetermined electrolysis is completed, for example, at night.

[0003]

SUMMARY OF THE INVENTION For the above purpose,
At the time of washing, the polarity of the electrode in the electrolytic cell is reversed and electrolysis is performed, and acidic water is electrolytically generated and drained in the electrode chamber where alkaline water was generated, thereby dissolving calcium and the like in the cathode chamber and the drain pipe of the cathode chamber.・ Elimination is being performed. However, in this method, although calcium in the cathode chamber and the drainage line downstream thereof is removed, the water supply line in the cathode chamber cannot be sterilized and washed.

Accordingly, the present inventor has previously provided a mechanism for disinfecting and cleaning the water supply line of the cathode chamber and the cathode chamber and the cathode chamber drainage pipe with the acidic water generated in the anode chamber, particularly water containing hypochlorous acid. Developed a continuous electrolyzed water generator equipped with: Patent Application No. 65394/1996, Patent Application No. 104726/1996,
1996 Patent Application No. 129032 and October 1, 1996
On the 8th, a patent application has been filed under patent application serial number PAS96038. However, in this case, the bypass water circuit that does not pass through the water purifier from the water supply line is connected to the drain pipe of the anode chamber of the electrolytic cell via a switching valve, and during cleaning, the raw water flowing back through the anode chamber is hypochlorous acid. Since the water is electrolytically generated and flows from the anode chamber side water supply pipe to the cathode chamber side water supply pipe, the bypass is separately required. Further, at the time of washing, there are various inconveniences, such as the flow of water back into the anode chamber and the imbalance in water flow between the cathode chamber and the anode chamber.

Accordingly, a first object of the present invention is to eliminate the need for the above-mentioned bypass and to maintain the same flow direction of water as that of normal electrolytic water generation during washing, and to remove acidic water (secondary water) generated in the anode chamber. It is an object of the present invention to provide a sterilization and cleaning method for a continuous electrolytic water generation apparatus that can sterilize and clean from a cathode chamber side water supply pipe to a cathode chamber and a cathode chamber drain pipe on the downstream side thereof with chlorite water.

A second object of the present invention is to provide a continuous electrolyzed water generating apparatus which is provided with a cleaning mechanism or a cleaning circuit for performing the above-mentioned sterilizing and cleaning method and which can efficiently perform sterilizing and cleaning.

By the way, during the washing, the supply of the raw water to the cathode chamber of the electrolytic cell is stopped, the whole amount of the raw water is supplied to the anode chamber, and the water electrolytically generated in the anode chamber is caused to flow to the water supply pipe on the cathode chamber side for cleaning. Then, the water pressure of the anode chamber side water supply pipe rises. For this reason, when a filtration water purifier such as a microfilter is interposed in the cathode chamber water supply pipe that communicates with the anode chamber drain pipe during washing, the water pressure in the anode chamber of the electrolytic cell increases due to the resistance of the microfilter. However, the diaphragm of the electrolytic cell may be damaged.
Accordingly, a third object of the present invention is to provide the above continuous electrolytic water generating apparatus, wherein the diaphragm of the electrolytic cell is protected from a rise in water pressure, and further comprising a mechanism for cleaning the outlet of the filtration water purifier with the entire amount of the cleaning water. Is to do.

[0008]

In order to achieve the first object, the present invention is to pass raw water from a cathode chamber side water supply line provided with an adsorption water purifier to a cathode chamber of a diaphragm electrolytic cell. Along with watering, the raw water from the anode chamber side water supply line without the adsorption water purifier is electrolyzed while passing water through the anode chamber of the diaphragm electrolyzer,
In the method for sterilizing and cleaning a continuous electrolytic water generating apparatus in which alkaline water generated in a cathode chamber of a diaphragm electrolyzer and acid water generated in an anode chamber are separately discharged from a pair of drain pipes, the cathode chamber side water supply is performed. The supply of raw water from the pipe to the cathode chamber is stopped, the raw water is passed from the anode chamber-side water supply pipe to the anode chamber, and the electrolytic water discharged from the anode chamber-side drain pipe is downstream of the adsorption water purifier. And electrolyzing water passing through the cathode chamber and the anode chamber of the diaphragm electrolyzer while draining from the cathode chamber side drainage pipe through the cathode chamber through the cathode chamber side water supply pipe. It is characterized by.

In order to achieve the second object, the present invention is to provide an electrolysis while feeding raw water from a water supply line to a diaphragm electrolyzer, and alkaline water generated in a cathode chamber of the diaphragm electrolyzer. In a continuous electrolyzed water generator that separately discharges acidic water generated in an anode chamber from a pair of drainage pipes, a cathode chamber in which a water supply pipe of an electrolytic cell is connected to a cathode chamber via an adsorption water purifier. Without passing through the side water supply pipe and the adsorption water purifier,
Or, it is constituted by an anode chamber side water supply pipe connected to the anode chamber through the adsorption water purifier, and related to the drainage pipe of the anode chamber and the cathode chamber side water supply pipe downstream of the adsorption water purifier. And a flow path control means for stopping the supply of raw water to the cathode chamber and communicating the drainage pipe of the anode chamber with the cathode chamber water supply pipe on the downstream side of the adsorption water purifier. The acidic water to be discharged is discharged from a cathode chamber drainage pipe through a cathode chamber from a cathode chamber water supply pipe downstream of the adsorption water purifier.

[0010] In the electrolyzed water generating apparatus provided with a filtration water purifier downstream of the adsorption water purifier in the water supply line on the cathode chamber side, the cathode water supply line between the adsorption water purifier and the filtration water purifier; The flow path control means is provided in connection with the room drainage pipe.

[0011] In order to achieve the third object, the present invention relates to the above electrolytic water generating apparatus, wherein the filtration water purifier is provided downstream of the adsorption water purifier in the water supply pipe on the cathode chamber side. When the water supply pressure to the filtration water purifier exceeds a predetermined pressure, between the anode chamber side drainage pipe or the cathode chamber side water supply pipe and the outlet of the filtration water purifier, a part of the water is supplied to the inside of the filtration water purifier. The present invention is further characterized in that a bypass is provided to flow to the discharge port without passing through the filter.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. 1 and 2 show a schematic configuration of a continuous electrolytic water generating apparatus according to the present invention. FIG. 1 shows a flow of water during normal electrolytic water generation, and FIG. 2 shows a flow of water during cleaning. Is shown.

As shown in the drawing, the continuous electrolyzed water generating apparatus 1 of the present invention uses a diaphragm electrolyzer 2 which comprises a negative electrode 3 and a positive electrode 4 which are disposed opposite to each other. The cathode chamber 6 and the anode chamber 7 are separated by an electrolytic diaphragm 5, and a cathode chamber side water supply pipe 8 is provided on the water supply side of the cathode chamber 6, and the anode chamber 7
The anode chamber side water supply pipe 9 is independently connected to the water supply side, and the cathode chamber drain pipe 10 and the anode chamber drain pipe 11 are independently provided on the drain side of the cathode chamber 6 and the anode chamber 7, respectively. Have been.

In the electrolyzed water generating apparatus 1 shown in FIG. 1, an adsorption water purifier 12 using activated carbon or the like is interposed in a water supply line 8 on the cathode chamber side, and residual chlorine contained in raw water such as tap water. Is supplied to the cathode chamber 6 of the electrolytic cell 2. Further, in the embodiment shown in FIG.
A filtration water purifier 13 using a micro filter or the like is interposed in the cathode chamber side water supply line 8b on the downstream side of
Further, on the downstream side, an addition cylinder 14 for adding a mineral component to the feed raw water is provided.

On the other hand, the water supply line 9 on the anode chamber side is connected to the water supply side of the anode chamber 7 preferably through a constant flow valve 15 without passing through the adsorption water purifier 12.

In the embodiment shown in FIG. 1, the common drainage line 16 on the upstream side of the adsorption water purifier 12 is branched into two branches, one of which is connected to the adsorption water purifier 12, a filtration water purifier 13 such as a microfilter, and a mineral addition cylinder 14. It is configured as an interposed cathode chamber side water supply line 8, and the other is configured as an anode room side water supply line 9 which does not pass through the adsorption water purifier 12.

Thus, in the embodiment of FIG. 1, the residual chlorine is removed by the adsorption water purifier 12, the water is purified by the filtration water purifier 13, and the water replenished with minerals from the addition tube 14 is supplied to the cathode chamber 6 of the electrolytic cell 2. While water is supplied, water from which residual chlorine has not been removed is supplied to the anode chamber 7, and the water is supplied to the electrolytic cell 2.
By applying an electrolytic voltage to the negative electrode 3 and the positive electrode 4 in the process of passing water, alkaline water is generated in the cathode chamber 6 and discharged from the drain pipe 10, while hypochlorous acid is generated in the anode chamber 7. (Hereinafter referred to as hypochlorous acid water) is generated and drained from the anode chamber drain pipe 11 to the drain 17 and the like.

In the sterilizing and cleaning method of the present invention, when cleaning the continuous electrolyzed water generator having the above structure, the supply of raw water from the cathode chamber side water supply line 8 to the cathode chamber 6 is stopped and the anode chamber is cleaned. While supplying raw water from the side water supply line 9 to the anode chamber 7, the electrolytic water discharged from the anode room side drainage line 11 is supplied to the cathode room side water supply line 8 b downstream of the adsorption water purifier 12,
The water passing through the cathode compartment 6 and the anode compartment 7 of the diaphragm electrolysis tank 2 is electrolyzed while draining from the cathode compartment side water supply conduit 8b through the cathode compartment 6 and the cathode compartment drainage conduit 10, thereby forming a diaphragm. Disinfecting water, preferably hypochlorous acid, which is electrolytically produced in the anode chamber 7 of the electrolytic cell 2 is supplied to the anode chamber 7 of the electrolytic cell 2 → the anode chamber drain pipe 11 → the downstream side of the adsorption water purifier 12. Water is passed through a washing circuit that flows in the order of the cathode chamber side water supply pipe 8b → the cathode chamber 6 → the cathode chamber drain pipe 10 to perform sterilization washing.

In this case, it is possible to generate hypochlorous acid water having a strong sterilizing power in the anode chamber 7 by electrolysis of raw water such as tap water containing chlorine. Electrolysis may be performed by adding a chloride salt such as sodium chloride to the water in the electrolytic cell 2, or hydrochloric acid may be added to efficiently generate hypochlorous acid water to adjust the pH.

In order to carry out the above-mentioned sterilization and washing, the electrolyzed water generating apparatus 1 of the present invention is arranged so that the drainage pipe 11 of the anode chamber 7 and the cathode chamber-side water supply pipe 8b downstream of the adsorption water purifier 12 are disposed between each other. Then, the supply of raw water to the cathode chamber 6 is stopped, and the flow path control means 18 for connecting the drainage pipe 11 of the anode chamber 7 to the cathode chamber side water supply pipe 8b downstream of the adsorption water purifier 12 is interposed. Is equipped.

In the case of a device in which a filtration water purifier 13 is provided in the downstream water supply line 8b of the adsorption water purifier 12 as in the embodiment shown in FIG. Between the cathode chamber-side water supply pipe 8 b and the anode chamber drain pipe 11.

FIG. 3 shows another embodiment of the present invention, in which a common water supply line 16 is provided with the adsorption water purifier 1.
2 is provided, and a line branched from a water supply line on the downstream side of the adsorption water purifier 12 is used as an anode chamber side water supply line 9, so that water passing through the adsorption water purifier 12 is supplied to the anode of the electrolytic cell 2. The room 7 is supplied with water.

The flow path control means 18 of the embodiment shown in FIG.
The raw water supply port 20 for receiving the raw water from the cathode room side water supply line 8b on the downstream side, the drainage port 21 for sending out water to the cathode room side water supply line 8b on the downstream side, and the electrolysis from the anode room drainage line 11 Acid water supply port 22 for receiving acid water and drain 1
7 is formed, and at the time of normal electrolysis, the raw water supply port 20 and the discharge port 21 are communicated with the internal passage of the hollow valve casing 19, and the acidic water supply port 22 and the drain 17 are connected. And the inside of the hollow valve casing 19 is slid during cleaning to stop the water supply from the raw water supply port 20.
The valve body 24 that connects the water supply port 22 of the electrolytic acid water and the drain port 21 is slidably inserted.

However, the flow path control means 18 is not limited to the embodiment shown in the figure, and normally connects the cathode chamber side water supply pipe 8b and the anode chamber drain pipe 11 to the drain outlet during electrolysis. During cleaning, the cathode chamber side water supply line 8b
Any structure may be used as long as it has a function of stopping the supply of raw water from and supplying the electrolytic acid water supply port 22 with the downstream cathode chamber-side water supply pipe 8b. For example, a slide valve having another structure may be used, or two three-way valves may be used.

Next, the operation of the embodiment of FIGS. 1 to 3 will be described with reference to the drawings. During the normal electrolysis operation for generating alkaline water, as shown in FIG. 1 and FIG. 3, since the cathode chamber side water supply pipe 8b is connected by the communication from the water supply port 20 to the drain port 21 of the flow path control means 18, the raw water is electrolyzed. Raw water is supplied to the cathode chamber 6 of the tank 2, while raw water is supplied to the anode chamber 7 from the water supply pipe 9 on the anode chamber side, and alkali ion water generated in the cathode chamber by electrolysis in the electrolytic tank 2 is drained. Water is taken from the pipe 10. Further, in the flow path control means 18 in this state, the water supply port 22 and the drain port 23 communicate with each other, so that the acidic water (hypochlorous acid water) generated in the anode chamber 7 is drained to the drain 17.

On the other hand, as shown in FIG. 2, when the valve element 24 of the flow path control means 18 is stopped at the cleaning position, that is, the supply of raw water to the cathode chamber side water supply pipe 8b is stopped, and the water supply port 22 and the drain port 21 are communicated. The acidic water (hypochlorous acid water) generated in the anode chamber 7 passes through the cathode chamber side water supply pipe 8b, and the cathode chamber 6 and the drain pipe 10
In the process of draining water from the water purifier, the cathode chamber side water supply pipe line 8b, the cathode chamber 6, and the drain pipe 10 downstream of the adsorption water purifier 12 are sterilized and washed with hypochlorous acid water.

When a filter water purifier 13 such as a micro filter is provided in the cathode chamber side water supply line 8b downstream of the flow path control means 18, the inside of the filter water purifier 13 is also sterilized and washed with hypochlorous acid water. Is done.

At the time of washing, if the raw water from the common water supply pipe 16 is allowed to flow only to the water supply pipe 9 on the anode chamber side, the water pressure becomes too high, so that it is desirable to release the water pressure. For this reason, in the embodiment shown in the drawing, a flow path 25 is provided in the axis of the valve body 24 of the flow path control means 18 for communicating the water supply port 20 and the drain port 23 to the drain 17 at the time of cleaning, and the raw water of the water supply line 16 is provided at the time of cleaning. Is flowed to the drain 17 through the flow path 25 to reduce the pressure. Needless to say, the pressure reducing means is not limited to the above configuration, and may be a structure in which a drain pipe having a pressure reducing valve is provided at an appropriate position.

In the figure, a member indicated by reference numeral 26 is a pressure switch provided with a drain valve mechanism. The pressure switch 26 is provided with a switch main body 27 that is operated by the pressure of the water supply pipe 16 and a diaphragm valve body 31 that opens and closes the valve seat 29 in a valve casing 30 having an inlet 28 and an outlet valve seat 29. With a drain valve 32
The diaphragm 33 of the switch body 27 and the drain valve 3
The second diaphragm valve element 31 is connected by a connecting rod 34.

The pressure switch 26 includes a switch body 27
Of the electrolytic cell 2 when the diaphragm 33 receives water pressure.
An N signal is transmitted, and a diaphragm 31 interlocked with the diaphragm 33 through a connecting rod 34 closes the outflow valve seat 29. The inflow port 28 of the drain valve 32 has a cathode chamber side. A drainage line 35 is connected to the water supply line 8b. Therefore, when the water pressure in the water supply pipe 16 rises, the electrolytic cell 2 is turned on, and the diaphragm valve body 31 of the water drain valve 32 closes the outflow valve seat 29 to stop the flow of the water drain pipe 35. On the other hand, when the flow of water to the water supply pipe 16 is stopped and the pressure decreases, the diaphragm valve element 31 is urged in a direction to open the outflow valve seat port 29 by a spring or the like, and water from the drain pipe 35 is discharged from the valve seat port 2.
Drained from 9 to drain 17.

FIG. 4 shows an embodiment of the apparatus according to claim 4 of the present invention, wherein members indicated by the same reference numerals as those in FIGS. 1 to 3 indicate the same members. That is, the electrolyzed water generating apparatus of FIG. 4 is provided between the anode chamber side drainage pipe 11 serving as a water supply pipe of the filtration water purifier 13 during washing and the outlet 35 of the filtration water purifier 13.
When the feed water pressure of the filtration water purifier 13 exceeds a predetermined pressure, a bypass 37 is formed to flow a part of the supply water to the discharge port 35 without passing through the internal microfilter 36 of the filtration water purifier 13.

For this reason, in the embodiment of FIG.
3 is provided with an auxiliary water supply port 38 and a water passage 39 communicating with the discharge port 35 without passing through the microfilter 36, and the anode chamber side drainage pipe 11 and the auxiliary water supply port 38 are connected through a throttle valve 40 and a check valve 41. It is connected by the installed branch conduit 42. Therefore, the detour 37 in the embodiment of FIG. 4 is constituted by the branch pipe 42 communicating via the auxiliary water supply port 38 and the water passage 39 inside the filtration water purifier 13.

However, the bypass 37 is not limited to the embodiment shown in FIG. 4, and for example, the branch pipe 42 may be branched from the cathode chamber side water supply pipe 8b between the flow path control means 18 and the filtration water purifier 13. Further, the microfilter 3 is provided inside the filtration water purifier 13.
6 may be provided at the discharge port 35 from the upstream side. However, in any case, the bypass 37 controls the flow of water by the throttle valve 40 and the spring 43 so that water is supplied only when the pressure of water supplied to the filter water purifier 13 rises above a predetermined pressure.
Check valve 4 so that the water of No. 2 flows only to the filtration water purifier 13 side.
1 must be provided.

Next, the operation of the embodiment of FIG. 4 will be described. At the time of washing, the water supply to the cathode chamber side water supply line 8 is stopped so that the entire amount of water supply flows to the anode room side water supply line 9. Therefore, the acidic water sent to the filtration water purifier 13 through the anode room side drainage line 11. Although the supply pressure of (hypochlorous acid water) rises, a part of the acid water (hypochlorous acid water) whose water pressure has risen by the bypass 37 bypasses the microfilter 36 of the filter water purifier 13 and is discharged. Since the water flows to the outlet 35, no excessive water pressure is applied to the diaphragm 5 of the electrolytic cell 2, and the outlet 35 and its downstream pipe are washed with the entire amount of acidic water.

[0035]

According to the present invention, the acidic water (hypochlorous acid water) generated in the anode chamber is switched from the cathode chamber side water supply pipe including the microfilter to the electrolytic cell by switching the flow path of the flow path control means at the time of washing. Through the cathode chamber drain pipe, the water supply pipe downstream of the adsorption water purifier, the cathode chamber and the drain pipe are sterilized with hypochlorous acid water, and calcium in the electrolytic cell is dissolved by the acidic water.

In the present invention, since the drainage pipe of the anode chamber is connected to the water supply pipe on the cathode chamber side during washing and the hypochlorous acid water is circulated, the washing water circuit can be constituted only by the flow path control means. At the same time, the flow direction of water during cleaning is the same as during normal electrolysis, so that the balance of water flow during cleaning can be maintained.

During the washing, even if the whole amount of the raw water is electrolyzed to acidic water and supplied to the filtration water purifier from the anode chamber side drainage line, a part of it flows to the discharge port by bypassing the microfilter, so that the diaphragm of the electrolytic cell is removed. Will not be damaged by excessive water pressure.
In addition, the outlet of the microfilter and the downstream side thereof are washed with the entire amount of the acidic water, so that the washing effect is not affected.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram of a continuous electrolytic water generation apparatus according to an embodiment of the present invention.

FIG. 2 is a configuration diagram of a water circuit when the apparatus of FIG. 1 is washed.

FIG. 3 is a schematic configuration diagram of a continuous electrolytic water generation apparatus according to another embodiment of the present invention.

FIG. 4 is a schematic configuration diagram of a continuous electrolytic water generation apparatus according to another embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Continuous electrolyzed water generator 2 ... Separation membrane electrolysis tank 3 ... Cathode electrode 4 ... Positive electrode 5 ... Electrolysis diaphragm 6 ... Cathode chamber 7 ... Anode chamber 8 ... Cathode chamber side water supply line 8a ... Upstream of adsorption water purifier Cathode room side water supply line 8b ... Cathode room side water supply line downstream of adsorption water purifier 9 ... Anode room side water supply line 10 ... Cathode side drainage line 11 ... Anode side drainage line 12 ... Adsorption water purifier 13 ... Filtration Water purifier 14 ... Addition tank 15 ... Constant flow valve 16 ... Common water supply line 17 ... Drain 18 ... Flow path control means 19 ... Valve casing 20 ... Raw water supply port 21 ... Drain port 22 ... Acid water supply port 23 ... Acid water discharge Port 24 ... Valve 25 ... Flow path 26 ... Pressure switch 27 ... Switch body 28 ... Inlet 29 ... Outflow valve seat 30 ... Valve casing 31 ... Diaphragm valve 32 ... Drain valve 33 ... Diaphragm 34 ... Linking rod 35 ... Outlet 36 Micro filter 37 ... bypass 38 ... auxiliary feedwater inlet 39 ... water passage 40 ... throttle valve 41 ... check valve 42 ... branch pipe

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁶ Identification code FI C02F 1/50 550 C02F 1/50 550D 560 560F 1/76 1/76 A

Claims (5)

[Claims] 1. A method according to claim 1, wherein raw water from a water supply pipe on the cathode chamber side provided with an adsorption water purifier is passed through the cathode chamber of the electrolytic cell having a diaphragm, and water supplied from a water supply pipe on the anode chamber side not provided with an adsorption water purifier. Raw water is electrolyzed while passing through the anode chamber of the diaphragm electrolyzer, and the alkaline water generated in the cathode chamber of the diaphragm electrolyzer and the acidic water generated in the anode chamber are separately discharged from a pair of drain pipes. In the sterilizing and cleaning method of the continuous electrolyzed water generator, while stopping the supply of raw water from the cathode chamber side water supply pipe to the cathode chamber and passing the raw water from the anode chamber side water supply pipe to the anode chamber,
The electrolytic water discharged from the anode chamber side drain pipe is supplied to the cathode chamber side water pipe downstream of the adsorption water purifier, and drained from the cathode chamber side drain pipe through the cathode chamber from the cathode chamber side water pipe. A method for sterilizing and cleaning a continuous electrolytic water generator, wherein water passing through a cathode chamber and an anode chamber of the diaphragm electrolyzer is electrolyzed. 2. Electrolysis while feeding raw water from a water supply line to a diaphragm electrolyzer, and a pair of drainage of alkaline water generated in a cathode chamber and acid water generated in an anode chamber of the diaphragm electrolyzer. In the continuous electrolyzed water generator that is discharged separately from each pipe,
The water supply line of the electrolytic cell is constituted by a water supply line on the cathode chamber side passing through the adsorption water purifier, and a water supply line on the anode room side not passing through the adsorption water purifier. In relation to the water supply line on the cathode side downstream of the water purifier, the supply of raw water to the cathode room is stopped, and the drainage line of the anode room is connected to the water supply line on the cathode side downstream of the adsorption water purifier. Providing a flow path control means for causing the acidic water generated in the anode chamber to be discharged from the cathode chamber drainage pipe through the cathode chamber water supply pipe downstream of the adsorption water purifier through the cathode chamber during washing. Continuous electrolytic water generator having a washing mechanism characterized by the following: 3. Electrolysis while feeding raw water from a water supply line to a diaphragm electrolytic cell, and a pair of drainage is performed for alkaline water generated in a cathode chamber of the diaphragm electrolytic cell and acidic water generated in an anode chamber. In the continuous electrolyzed water generator that is discharged separately from each pipe,
An adsorption water purifier is interposed in the common water supply line of the electrolytic cell, and the downstream water supply line of the adsorption water purifier is connected to the cathode chamber side water supply line leading to the cathode chamber of the electrolytic cell and the anode chamber side water supply leading to the anode room. Along with branching into a pipe, the drainage pipe of the anode chamber and the cathode chamber side water supply pipe downstream of the adsorption water purifier are stopped from supplying raw water to the cathode chamber, and A flow path control means is provided for communicating the drainage line with the cathode chamber water supply line on the downstream side of the adsorption water purifier, and during washing, acidic water generated in the anode chamber is supplied from the cathode room water supply line on the downstream side of the adsorption water purifier to the cathode. Continuous electrolytic water generating apparatus having a washing mechanism, characterized in that the electrolytic water is discharged from the cathode chamber drain pipe through the chamber. 4. A filtration water purifier is provided in the cathode water supply line downstream of the adsorption water purifier, and the cathode water supply line and the anode room drainage line between the adsorption water purifier and the filtration water purifier are provided. 3. The continuous electrolytic water generation apparatus according to claim 1, wherein the flow path control unit is provided. 5. A water supply pressure to a filtration water purifier is a predetermined pressure between an anode chamber side drainage pipe or a cathode chamber side water supply pipe which is a water supply pipe at the time of washing of the filtration water purifier, and an outlet of the filtration water purifier. 4. The continuous electrolyzed water generator having a washing mechanism according to claim 3, further comprising a detour path for flowing a part of the supply water to the discharge port without passing through an internal filter of the filter water purifier when the water supply exceeds the filter.