JP3132048U - Electrolyzed water generator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electrolyzed water generating device capable of reliably removing calcium and magnesium compounds adhering to a cathode and a diaphragm without reducing the life of an electrode by a simple operation.
SOLUTION: An electrolytic cell 4 in which a cathode 44 and an anode 45 are arranged in a cathode chamber 42 and an anode chamber 43 separated by a diaphragm 41, respectively, from a supply flow path 71 connected to the cathode chamber 42 and the anode chamber 43, respectively. An electrolyzed water generating device that electrolyzes supplied water and extracts alkaline ion water generated in the cathode chamber 42 and acidic water generated in the anode chamber 43 from an extraction channel connected to the cathode chamber 42 and the anode chamber 43, respectively. The supply channel 71 is provided with an on-off valve 101, a branch having a drug tank 8 and a circulation pump 9 for storing a drug that decomposes the scale attached to the cathode 44 and the diaphragm 41, and three-way valves at both ends. The channel 10 was connected between an alkaline ionized water extraction channel 75 and an acidic water extraction channel 74 connected to the cathode chamber 42 and the anode chamber 43, respectively.
[Selection] Figure 1

Description

  INDUSTRIAL APPLICABILITY The present invention is an electrolyzed water generating apparatus capable of continuously obtaining alkaline ionized water and acidic water by electrolyzing water (hereinafter referred to as “electrolysis”), and in particular, can exhibit initial performance over a long period of time. The present invention relates to an electrolyzed water generator.

  Conventionally, an electrolyzed water generating apparatus that can electrolyze water and continuously obtain alkaline ionized water and acidic water is known, and a household device housed in a small casing is also commercially available. For example, as shown in FIG. 3, the electrolyzed water generating apparatus includes a cathode chamber 42 and an anode chamber 43 which are separated by a purifying device 2, a calcium adder 3, and a diaphragm 41 in a suitably small desktop housing 1. The electrolytic cell 4 in which the cathode 44 and the anode 45 are respectively arranged is housed, and a supply flow channel 71 for raw water (tap water) connected to a tap faucet 5 via a switching plug 6 is provided in the purifier 2. One of the bifurcated circulation channels 72 connected to the inlet 21 of the purification device 2 and the outlet 22 of the purification device 2 is connected to the anode chamber 43 of the electrolytic cell 3 via the calcium adder 3 and the other is the electrolytic layer 4. The acidic water extraction channel 74 is connected to the anode chamber 45 of the electrolytic cell 3, and the alkaline ionized water extraction channel 75 is connected to the cathode chamber 42.

  And the switch plug 6 to which the outlet of the extraction flow path 75 was connected by electrolyzing the purified water (electrolyzed water) to which calcium was added by the household power source through the power supply device 13 arranged in the housing 1 in the electrolytic tank 4. In addition to obtaining alkaline ionized water through the acidic water, the acidic water is obtained from the outlet of the acidic water take-out flow path 74.

  By the way, in the electrolyzed water generating device, calcium and magnesium compounds (hereinafter referred to as “scale”) contained in the electrolyzed water by electrolysis adhere to the cathode 44 and the diaphragm 41. This makes it difficult to obtain high-quality alkaline ionized water, and it is necessary to replace electrodes and electrolytic cells according to the frequency of use.

  In order to solve this problem, conventionally, a method has been adopted in which a voltage having a polarity opposite to that at the time of normal generation is applied between the electrodes to perform electrolysis, and the scale attached to the electrodes is blown off and removed. The conventional scale removing means performs reverse electrolysis for several seconds every 10 minutes of electrolysis, and has not been able to provide a sufficient scale removing effect.

  Therefore, for example, as disclosed in Japanese Patent Laid-Open No. 5-4087, an electrolyzed water generating apparatus has been proposed in which the time for reverse electrolysis is extended to achieve a scale removal effect.

  However, it has been found that frequent application of reverse current has the side effect of shortening the life of the electrode, and even when reverse current is applied, the scale attached to the diaphragm formed of, for example, polyester is removed. There is a problem that it is difficult.

In order to solve these problems, for example, Japanese Patent Application Laid-Open No. 2000-93960 discloses means for circulating a chemical agent that decomposes the scale such as citric acid in the generator by blocking the electrolyzed water circuit. The means presented in 1) is for adding citric acid to electrolyzed water to which a reverse current is applied, and mainly for removing scale adhering to the diaphragm of the electrolytic cell. In addition, citric acid is replaced with a citric acid addition means (separate washing bowl) connected to the circulation path in place of the purification tank, and is extremely complicated and difficult to perform in a general household. It is left to dealers and technical service personnel.
Japanese Patent Laid-Open No. 5-4087 JP 2000-93960 A

  The present invention has been made to solve the above-described problems, and an electrolyzed water generating apparatus capable of reliably removing scales adhering to a cathode and a diaphragm without reducing the life of an electrode by a simple operation. Is to provide.

  The electrolysis apparatus according to the present invention made to solve the above problems is an electrolytic cell in which a cathode and an anode are respectively arranged in a cathode chamber and an anode chamber separated by a diaphragm, and is connected to the cathode chamber and the anode chamber, respectively. Electrolyzed water supplied from the supplied supply channel, and electrolyzed water to extract the alkaline ion water generated in the cathode chamber and the acidic water generated in the anode chamber from the extraction channel connected to the cathode chamber and the anode chamber, respectively In the generating apparatus, the supply channel has an on-off valve, and a branch channel having a medicine tank for storing a medicine for decomposing the scale attached to the cathode and the diaphragm and a circulation pump, each provided with a three-way valve at both ends. Is connected between an alkaline ionized water extraction channel and an acidic water extraction channel connected to the cathode chamber and the anode chamber, respectively.

  In the electrolyzed state in which normal electrolyzed water is obtained, an open / close valve is opened in the supply channel to supply electrolyzed water from the supply channel to the electrolyzer and the branch channel side of both the three-way valves is closed and connected to the electrolyzer Both the extraction flow paths thus opened are opened, and alkaline ionized water and acidic water are extracted.

  Also, at the time of cleaning, at least normal electrolysis is stopped, the on-off valve is closed in the supply flow path, the supply of electrolytic water from the supply flow path is shut off, and the branch flow path side of the both three-way valves is opened to supply both The electrolytic water (clean water) to which the chemical from the chemical tank connected to the branch flow channel is closed is circulated through the anode chamber and the cathode chamber of the electrolytic bath for a predetermined time by a circulation pump, or a predetermined And the scale adhering to the cathode and the diaphragm is dissolved and removed.

  After cleaning, the open / close section and both three-way valves are returned to their original electrolytic state, and the cleaning liquid is circulated and discharged, and then electrolysis is started.

  In the present invention, when the on-off valve and the three-way valve are constituted by electromagnetic valves, and the opening / closing operation thereof is electrically controlled based on a preset software program, etc. Electrolysis and cleaning can be selected and performed with a simple operation by simply opening and closing a simple switch.

  Furthermore, a drug that dissolves and removes the scale used in the present invention can generally be expected to have an excellent effect when an acid such as hydrochloric acid is used. In particular, a safe drug that can be used for foods such as citric acid is used. Therefore, it can be handled safely at home.

  According to the present invention, the scale attached to the electrodes and the diaphragm can be dissolved and removed reliably and quickly by use, and the apparatus is not complicated and is housed in a casing that is almost the same as a conventional electrolyzed water generating apparatus. It can be provided at low cost and is economically advantageous, and it does not hurt the electrodes and shorten the service life as before, and the cleaning device is plugged in from the outside. There is no need for operation, especially when solenoid valves and control devices are used. When citric acid is used as a drug for removing scale, it is safe and suitable for home use.

  The best mode for carrying out the present invention will be described below with reference to the drawings.

  1 and 2 show a preferred embodiment of the present invention, FIG. 1 shows a normal electrolysis state, and FIG. 2 shows a state during cleaning. Inside, mainly the purification device 2, the calcium adder 3, the electrolytic bath 4, the chemical tank 8, the circulation pump 9, and various other devices arranged in the housing 1 including the above devices are electrically connected. A control device (not shown) or the like for controlling automatically is installed.

  The raw water (tap water) supply channel 71 protruding from the housing 1 is connected to the tap tap 5 through the switching plug 6, and the other end of the supply channel 71 is the lower end of the purification device 2. Is connected to an inflow port 21 having a check valve (not shown) disposed in the port, and the switch tap 6 is switched to allow tap water (raw water) to flow from the supply channel 71 to the purification device 2 from the faucet 5. Let

  The purification device 2 is filled with, for example, purification materials such as activated carbon, hollow fiber membranes, calcium sulfite, and various filters, and removes impurities and odors such as chalk, red rust, and organic matter contained in the raw water to purify the water. Create In addition, the purification device 2 can be easily maintained by adopting a cartridge type.

  The electrolytic bath 4 has a cathode 44 and an anode 45 each having at least a surface of platinum, for example, disposed in a cathode chamber 42 and an anode chamber 43 separated by a diaphragm 41 formed of a diaphragm material such as polyester. The conventional bifurcated circulation is connected to the electrolyzed water inlet 46 disposed at the lower end of the cathode chamber 42 and connected to the outlet 22 of the purification device 2 with the electromagnetic on-off valve 101. One of the flow paths 72 is connected, and the other is connected via the calcium adder 3 to an electrolytic water inlet 47 disposed at the lower end of the anode chamber 43.

  Further, an outlet 48 disposed at the upper end of the cathode chamber 42 has an electromagnetic three-way valve 102 and one end connected to a switching plug 6 protruding from the housing 1 to extract alkaline ionized water. A flow path 75 is connected, and an outlet 49 disposed at the upper end of the anode chamber 43 has an electromagnetic three-way valve 103 and one end protruding from the housing 1 at one end. 74 is connected.

  Furthermore, a branch passage 10 having a chemical liquid tank 8 and a circulation pump 9 is connected between the three-way valve 102 and the three-way valve 103. In the chemical liquid tank 8, a chemical 81 for decomposing a scale made of powdered, granular or solid citric acid is stored.

  In the drawing, reference numeral 82 denotes a filter disposed downstream of the chemical liquid tank 8 disposed in the vertical direction in the branch flow path 10, and a chemical 81 that decomposes the scale made of citric acid stored in the chemical liquid tank 8. The insoluble matter is prevented from flowing out to the circulation pump 9 or the like connected to the branch flow path 10. For example, when the chemical 81 that decomposes the scale is a liquid such as hydrochloric acid, it is installed. There is no need. Reference numerals 104 and 105 denote flow rate regulating valves disposed at both ends of the branch flow path 10.

  Further, the electrolyzed water generating apparatus is a power supply device that supplies a predetermined power source to the electrolyzer 4, the electromagnetic on-off valve 101, the electromagnetic three-way valves 102 and 103, the circulation pump 9 and the like inside the casing 1. 13 and a control device 14 for controlling the electromagnetic on-off valve 101, the electromagnetic three-way valves 102 and 103, and the circulation pump 9 according to a preset program are incorporated in a part of the surface 12 of the housing 1. A power switch 16 and a changeover switch 15 are installed on the arranged operation panel 11. In FIGS. 1 and 2 for explaining the present embodiment, wiring between the power supply device 13 and the control device 14 and each device is omitted.

  In order to obtain alkaline ionized water or acidic water in the present embodiment having the above-described configuration, as shown in FIG. 1, the switch tap 6 is operated to the water supply side, the tap 5 is opened, and the operation panel 11 is opened. Is switched to the electrolysis side and the power switch 16 is turned on, the electromagnetic on-off valve 101 is opened, and the electromagnetic three-way valves 102 and 103 close the branch flow path 10 side. The tap water (raw water) supplied from the tap 5 is purified through the purification device 2 from the supply channel 71, and this purified water passes through the calcium adder 3 through one of the bifurcated supply channels 72 to the anode chamber 42. In addition, the other is supplied to the cathode chamber 43, and predetermined electrolysis is performed between the anode 45 and the cathode 44 through the diaphragm 41 in the same manner as in the conventional electrolyzed water generating device.

  Then, the alkaline ionized water generated in the cathode chamber 43 is extracted from the extraction channel 75 through the switching plug 6, and the acidic water generated in the anode chamber 43 is extracted from the extraction channel 74. At this time, since the electromagnetic three-way valves 102 and 103 each close the branch flow path 10 side, there is no concern that the generated alkaline ionized water and acidic water are mixed.

  Next, in order to remove the scale adhering to the surfaces of the cathode 44 and the diaphragm 41 by performing cleaning, when the changeover switch 15 is switched to the cleaning side in the electrolysis state shown in FIG. The electrolysis power supply is turned off (or a reverse current may flow if necessary), the electromagnetic on-off valve 101 is closed and the supply of purified water (electrolyzed water) from the supply flow path 71 is shut off. The three-way valves 102 and 103 of the formula are opened to the branch flow path 10 side to cut off the supply of electrolyzed water from the supply flow paths 74 and 75. At the same time, the circulating pump 9 connected to the branch channel 10 is driven, and the electrolyzed water in the closed circuit formed by the on-off valve 101 and the three-way valves 102, 103 is supplied to the anode chamber 45, the calcium adder 3, the cathode The chamber 43, the drug tank 8, and the circulation pump 9 are circulated in this order, and the drug 81 for decomposing the scale made of citric acid stored in the drug tank 8 is dissolved in the circulating water to wash the cathode 44 or The scale adhered to the diaphragm 41 is dissolved and removed.

  Note that the circulation time of the cleaning liquid is left to the degree of scale adhesion, but the amount of scale adhesion is determined by the respective electrolyzed water generators, so that the amount of scale adhesion is determined in advance according to the usage time and automatically switched off. Also, in this embodiment, when the circulating cleaning liquid has a constant chemical concentration, or when a chemical concentration is used, the circulating pump 9 is stopped for a predetermined time. Alternatively, the circulation pump 9 may be driven intermittently. In this case, power saving of the circulation pump 9 can be achieved.

  When the dissolution and removal of the scale is completed after a predetermined time has elapsed, the electromagnetic on-off valve 101 is opened and the electromagnetic three-way valve is opened as in the electrolysis shown in FIG. 102 and 103 are closed on the branch channel 10 side, and both ends of the branch channel 10 are closed. The outlet 48 of the cathode chamber 42 of the electrolytic cell 4 is connected to the outlet channel 75 of alkaline ionized water, and the outlet 49 of the anode chamber. Are connected to the acid water take-out flow path 74, respectively, and raw water (tap water) is supplied from the tap 5 and taken out from the purifier 2 to the alkali adder 3 and the electrolytic layer 4 to the flow paths 74 and 75. And the citric acid and the scale solution remaining in the electrolytic bath 4, the calcium adder 3, and a part of the discharge channels 74 and 75 at the end of the cleaning process. The diluted cleaning solution is washed out to return to the state when the alkaline ionized water and acidic water shown in FIG. 1 are generated (during electrolysis).

  As described above, according to the present embodiment, the scale adhering to the cathode and the diaphragm can be removed by an extremely simple operation. Therefore, current efficiency is not reduced by the adhesion of the scale. It is possible to produce high-quality alkaline ionized water or acidic water having a concentration of

  Note that this embodiment shows an example, and the present invention is not limited to this embodiment. In this embodiment, since harmless citric acid is used as the chemical 81 for degrading the scale, it can be carried out at home safely. However, the chemical is not limited to citric acid, for example, other hydrochloric acid or the like. A drug may be used. Further, in the present embodiment, the on-off valve 101 and the three-way valves 102 and 103 are electromagnetically controlled so that they can be electrically controlled, so that cleaning can be performed by a simple operation of operating a switch. However, the on-off valve 101 and the three-way valves 102 and 103 may be switched manually.

BRIEF DESCRIPTION OF THE DRAWINGS The front schematic arrangement | positioning figure at the time of electrolysis of preferable embodiment in this invention. The front schematic arrangement | positioning figure at the time of the washing | cleaning about embodiment shown in FIG. The front schematic layout in a prior art example.

Explanation of symbols

4 Electrolyzer, 8 Drug tank, 9 Circulation pump, 10 Branch flow path, 41 Diaphragm, 42 Cathode chamber, 43 Anode chamber, 44 Cathode, 45 Anode, 71 Supply flow path, 74 Extraction flow path, 75 Extraction flow path, 81 Drug, 101 Open / close valve, 102 3-way valve, 103 3-way valve

Claims (4)

  Electrolyzing water supplied from supply passages respectively connected to the cathode chamber and the anode chamber in an electrolytic cell in which the cathode and the anode are respectively arranged in a cathode chamber and an anode chamber separated by a diaphragm, In the electrolyzed water generating apparatus for extracting the generated alkaline ion water and the acidic water generated in the anode chamber from the extraction channel connected to the cathode chamber and the anode chamber, the supply channel is provided with an opening / closing valve, and the cathode and A branch tank having a medicine tank for storing a medicine for decomposing the scale attached to the diaphragm and a circulation pump and having three-way valves at both ends is provided between the take-out passages connected to the cathode chamber and the anode chamber, respectively. An electrolysis generator characterized by being connected.   2. The electrolysis apparatus according to claim 1, wherein the on-off valve and the three-way valve are configured by electromagnetic valves, and the opening / closing operation thereof is electrically controlled based on a preset software program.   The electrolytic production apparatus according to claim 1, wherein the agent that decomposes the scale is citric acid. The electrolytic production apparatus according to claim 1, wherein the chemical that decomposes the scale is hydrochloric acid.

Images