JP2007038080A - Electrolytic water generator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electrolytic water generator capable of synchronously generating weak-acid electrolytic generation acid water and strong-alkali electrolytic generation alkaline water using the electrolytic water generator having one electrolytic cell. <P>SOLUTION: The electrolytic water generator comprises the electrolytic cell 10 integrally having diaphragm electrolytic cell parts 10b and 10c, and a diaphragmless electrolytic cell part 10a, wherein the diaphragm electrolytic cell parts 10b and 10c introduce diluted salt water which is water to be electrolyzed into a cathode side electrolytic chamber R2 and also introduce electrolytic generation water to be generated by diaphragmless electrolysis into an anode side electrolytic chamber R1 to carry out diaphragm electrolysis, thereby generating the weak-acid electrolytic generation acid water in the anode side electrolytic chamber R1 and the strong-alkali electrolytic generation alkaline water in the cathode side electrolytic chamber R2. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an electrolyzed water generating apparatus, and more particularly to an electrolyzed water generating apparatus that can generate weakly acidic electrogenerated acidic water and strong alkaline electrogenerated alkaline water synchronously.

  As an electrolyzed water generating device that generates electrolyzed acidic water and electrolyzed alkaline water synchronously, there is an electrolyzed water generating device having a diaphragm membrane electrolytic cell. In the electrolyzed water generation device, electrolysis-generated acidic water is generated in the anode-side electrolysis chamber and electrolysis-generated alkaline water is generated in the cathode-side electrolysis chamber by diaphragm membrane electrolysis. The generated electrolytically generated acidic water has a high sterilizing ability, and thus is effectively used as a sterilizing water. In addition, the electrolytically generated alkaline water has a high detergency, and thus has a high detergency. It is used effectively.

  By the way, the bactericidal ability of the electrolytically generated acidic water depends on the contained chlorine component and its form, and the chlorine component takes various forms depending on the pH region of the electrolytically generated acidic water. Electrolytically generated acidic water has different bactericidal ability between its strongly acidic pH range and weakly acidic pH range. In addition, the chlorine component contained in the electrolytically generated acidic water takes a form that easily volatilizes when the electrolytically generated acidic water is in the strongly acidic pH region, and when the electrolytically generated acidic water is in the weakly acidic pH region. Has the property of adopting a form that is difficult to volatilize. Therefore, when using strongly acidic electrolytically generated acidic water as sterilizing water, there is a possibility that the generation of chlorine components from the electrolytically generated acidic water may cause corrosion in peripheral equipment. is necessary.

  For this reason, from the viewpoint of ease of use of electrolytically generated acidic water, weakly acidic electrolytically generated acidic water that has little generation of chlorine components and has little effect on corrosion, etc. in peripheral equipment is not required in fields where high sterilization ability is not necessarily required. Use is desired. Therefore, in such an application field, when producing electrolyzed water, it is required to generate weakly electrolyzed acidic water and strong alkaline electrolyzed alkaline water synchronously.

  However, in diaphragm membrane electrolysis using one diaphragm membrane electrolytic cell, strong acidic electrolytically generated acidic water and strong alkaline electrolytically generated alkaline water can be generated synchronously by appropriately setting electrolysis conditions. Although weakly acidic electrogenerated acidic water and weak alkaline electrogenerated alkaline water can be generated synchronously, no matter what electrolysis conditions are used, weakly acidic electrogenerated acidic water and strongly alkaline alkaline water can be produced. Electrolytically generated alkaline water cannot be generated synchronously, and strong acidic electrolytically generated acidic water and weak alkaline electrolytically generated alkaline water cannot be generated synchronously.

  As an electrolysis method for generating electrolyzed acidic water in a desired pH region and electrolyzed alkaline water in a desired pH region, an electrolysis method in which two electrolytic cells of a diaphragm membrane electrolyzer and a non-diaphragm electrolyzer are appropriately combined and electrolyzed Has already been proposed. The first electrolysis method is a method of performing diaphragm electrolysis and diaphragm electrolysis by combining a diaphragm electrolyzer and a diaphragm electrolyzer (see Patent Document 1), and the second electrolysis method is: This is a method of performing diaphragm membrane electrolysis and diaphragm membrane electrolysis by combining a diaphragm membrane electrolytic cell and a diaphragm membrane electrolytic cell (see Patent Document 2).

  The electrolysis method proposed in Patent Document 1 is a method of generating weakly acidic sterilized water (weakly acidic electrolytically generated acidic water) and weakly alkaline water (weakly alkaline electrolytically generated alkaline water). In the electrolysis method, a diaphragm electrolytic cell is connected to the downstream side of the diaphragm electrolytic cell, and in the first electrolysis process, dilute salt water is subjected to diaphragm electrolysis in the diaphragm electrolyzer, and in the second electrolysis process, Supply electrolytically generated water generated by non-diaphragm electrolysis to the anode side electrolysis chamber of the diaphragm electrolyzer, and supply dilute salt water as electrolyzed water to the cathode electrolysis chamber of the diaphragm electrolyzer. The membrane is electrolyzed. Thereby, in the electrolysis method, weak acid sterilized water (weakly acidic electrolytically generated acidic water) and weakly alkaline water (weakly alkaline electrolytically generated alkaline water) are generated in the second electrolysis process.

Moreover, the electrolysis method proposed in Patent Document 2 is a method of generating weak alkaline ionized water (weakly alkaline electrolytically generated alkaline water) and weakly acidic sterilized water (weakly acidic electrolytically generated acidic water). In the electrolysis method, a diaphragm electrolyzer is connected downstream of the diaphragm electrolyzer, and in the first electrolysis process, tap water is subjected to diaphragm electrolysis in the diaphragm electrolyzer, and in the second electrolysis process. The weakly acidic ionized water generated in the anode-side electrolysis chamber of the diaphragm membrane electrolytic cell is subjected to diaphragmless electrolysis. Thereby, in the electrolysis method, weak alkaline ionized water (weak alkaline electrogenerated alkaline water) is generated in the first electrolysis process, and weak acidic sterilizing water (weak acidic electrogenerated acidic water) in the second electrolysis process. Is generated.
Japanese Patent No. 3205527 Japanese Patent No. 3357598

  Referring to the electrolysis methods proposed in Patent Documents 1 and 2 above, appropriately combining two electrolytic cells, a diaphragm electrolytic cell and a diaphragm electrolytic cell, and a diaphragm electrolytic cell and a diaphragm By appropriately selecting the electrolyzed water to be supplied to each electrolytic chamber of the electrolytic cell, the generation of electrolytically generated water intended by the present invention, in other words, weakly acidic electrolytically generated acidic water and strong alkaline electrolytically generated alkaline water It can be predicted that it can be generated.

  However, with reference to the electrolysis method proposed in each Patent Document 1.2, it is possible to develop an electrolysis method and an electrolyzed water generation apparatus that generate weakly acidic electrogenerated acidic water and strong alkaline electrogenerated alkaline water. Even so, it is indispensable that the electrolysis method and the electrolyzed water generating apparatus use two electrolyzers, a diaphragm electrolyzer and a non-diaphragm electrolyzer, and the electrolyzed water generator is complicated and large-sized, Moreover, there is a problem that a large space must be secured as an installation space.

  The present invention is intended to generate weakly acidic electrogenerated acidic water and strong alkaline electrogenerated alkaline water synchronously using an electrolyzed water generating apparatus having one electrolytic cell. is there. Therefore, in other words, the object of the present invention is to provide an electrolyzed water generating device that can generate weakly electrolyzed acidic water and strong alkaline electrolyzed alkaline water in a single electrolytic cell. There is to do.

  The present invention is an electrolyzed water generating device capable of synchronously generating weakly acidic electrogenerated acidic water and strong alkaline electrogenerated alkaline water. The electrolyzed water generating apparatus according to the present invention is an electrolyzed water generating apparatus including an electrolytic cell integrally including a diaphragm membrane electrolytic cell unit and a non-diaphragm electrolytic cell unit, and the electrolytic cell is a cathode of the diaphragm electrolyzed cell unit. A supply conduit connected to the electrolysis chamber of the side electrolysis chamber and the non-diaphragm electrolyzer unit to supply electrolyzed water to each electrolysis chamber, the cathode electrolysis chamber and the anode electrolysis chamber of the diaphragm electrolyzer unit, Derived pipes connected to the electrolysis chambers of the non-diaphragm electrolyzer unit to derive electrolyzed water produced in the electrolyzers, and lead-out tubes connected in the electrolyzer of the non-diaphragm electrolyzer unit And an introduction pipe line that is connected to the anode-side electrolytic chamber of the diaphragm membrane electrolytic cell unit and introduces electrolytically generated water generated in the electrolytic chamber of the non-diaphragm electrolytic cell unit to the anode electrolytic cell unit, Strongly alkaline electrogenerated alkali from the cathode side electrolysis chamber of the diaphragm electrolyzer Water is derived, and the is characterized in that the perforated diaphragm electrolytic cell unit weakly acidic electrolytic acid water from the anode side electrolysis chamber is adapted to be derived.

  In the electrolyzed water generating apparatus according to the present invention, an electrolytic cell integrally including at least two diaphragm membrane electrolytic cell units and at least one non-diaphragm electrolytic cell unit is adopted, and each of the diaphragm electrolytic cell units is It can be configured by arranging on both sides of the diaphragm electrolyzer part with the diaphragm electrolyzer part in between. In this case, each electrode of the non-diaphragm electrolytic cell unit can also serve as one of the electrodes of each of the diaphragm electrolyzed cell units.

  According to the electrolyzed water generating apparatus according to the present invention, weakly acidic electrolyzed acidic water can be generated in the anode-side electrolysis chamber of the diaphragm electrolyzer unit, and in the cathode-side electrolyzer chamber of the diaphragm electrolyzer unit. Strong alkaline electrogenerated alkaline water can be produced. That is, according to the electrolyzed water generating apparatus according to the present invention, weakly acidic electrolyzed acidic water and strong alkaline electrolyzed alkaline water can be generated synchronously. Therefore, the electrolyzed water generating apparatus according to the present invention is mainly composed of one electrolyzer, and is an electrolyzed water generator configured by combining two electrolyzers, a diaphragm electrolyzer and a non-diaphragm electrolyzer. Compared to the device, there is a great advantage in that the configuration is simple and small, and the installation space is relatively small.

  In the electrolyzed water generating apparatus according to the present invention, if the configuration adopts at least two diaphragm electrolyzer units and at least one non-diaphragm electrolyzer unit, the diaphragm electrolyzer unit and the non-diaphragm electrolyzer unit If the number is increased, the synchronously generated amount of weakly acidic electrolytically generated acidic water and strong alkaline electrolytically generated alkaline water can be greatly increased. In this case, by arranging the diaphragm electrolytic cell part on both sides of the diaphragm electrolytic cell part, the electrodes constituting the diaphragm electrolytic cell part and the electrode of the diaphragm electrolytic cell part can be shared. Thus, the configuration of the electrolyzed water generating device can be further simplified and downsized.

  The present invention relates to an electrolyzed water generating apparatus that can generate weakly acidic electrogenerated acidic water and strong alkaline electrogenerated alkaline water synchronously. In FIG. 1, one Embodiment of the electrolyzed water generating apparatus based on this invention is shown. The electrolyzed water generating apparatus mainly includes an electrolytic cell 10 integrally including one non-diaphragm electrolytic cell unit 10a and two separated membrane electrolytic cell units 10b and 10c located on both sides thereof.

  The tank body 11 constituting the electrolytic cell 10 includes three tank parts 11a, 11b, and 11c arranged in parallel, and electrodes 13a and 13b are respectively provided on the partition walls 12a and 12b that partition the tank parts 11a, 11b, and 11c. It is arranged. Electrodes 13a and 13b disposed on the partition walls 12a and 12b face the central tank portion 11a, respectively. On the other hand, diaphragms 14a and 14b having ion permeability are disposed in the central part of the left tank part 11b and the right tank part 11c on each side. Each diaphragm 14a, 14b partitions each tank part 11b, 11c into two compartments. In the tank portion 11b on the left side, an electrode 13a disposed on the partition wall 12a faces one compartment, and an electrode 13c is disposed on the other compartment. Moreover, in the right tank part 11c, the electrode 13b arrange | positioned at the partition 12b faces the other compartment, and the electrode 13d is arrange | positioned at one compartment.

  With this configuration, the electrolytic bath 10 has a central tank portion 11a formed in the non-diaphragm electrolytic bath portion 10a, and a left-side tank portion 11b and a right-side tank portion 11c in the diaphragm membrane electrolytic bath portions 10b and 10c. Is formed. In the electrolytic cell 10, the electrode 13a is set as the positive electrode, the electrode 13b is set as the negative electrode, the electrode 13c is set as the negative electrode, and the electrode 13d is set as the positive electrode. Thereby, in the non-diaphragm electrolysis tank part 10a, the inside of the center tank part 11a is formed in the electrolysis chamber R. In the diaphragm electrolytic cell section 10b, one compartment in the left tank section 11b is formed in the anode-side electrolysis chamber R1, and the other compartment is formed in the cathode-side electrolysis chamber R2. . In the diaphragm electrolytic cell section 10c, the other compartment in the right tank section 11c is formed in the anode-side electrolysis chamber R1, and one compartment is formed in the cathode-side electrolysis chamber R2. .

  The electrolyzed water generating apparatus employs a dilute aqueous solution of salt such as salt as electrolyzed water, and performs both diaphragmless electrolysis and diaphragm electrolysis in one electrolyzer 10. Supply pipelines 21a, 21b, and 21c for supplying water to be electrolyzed are connected to the upstream side of the electrolytic chamber R of the section 10a and the upstream side of the cathode-side electrolytic chamber R2 of the diaphragm electrolytic cell sections 10b and 10c. ing. Electrolytically generated water generated in each electrolysis chamber is provided downstream of the electrolysis chamber R of the diaphragm electrolyzer unit 10a and on the downstream side of the cathode electrolysis chamber R2 of each of the diaphragm electrolyzer units 10b and 10c. Each lead-out conduit 22a, 22b, 22c to lead out is connected. Therefore, in the electrolyzed water generating apparatus, the outlet conduit connected to the electrolysis chamber R of the non-diaphragm electrolyzer 10a is provided upstream of the anode electrolysis chamber R1 of each diaphragm electrolyzer 10b, 10c. Lead pipes 23a and 23b connected to 22a are connected, and lead-out pipe lines 22d and 22e are connected to the lower side of the anode-side electrolysis chamber R1 of each diaphragm electrolytic cell section 10b and 10c.

  In the electrolyzed water generating apparatus having such a configuration, during electrolysis, the electrolyzed water is supplied into the electrolysis chamber R of the diaphragm electrolyzer 10a through the supply pipe 21a and through the supply pipes 21b and 21c. The electrolytically generated water supplied to each cathode-side electrolysis chamber R2 of each diaphragm electrolyzer unit 10b, 10c and generated in the electrolyzer chamber R of the non-diaphragm electrolyzer unit 10a is used as electrolyzed water for each introduction pipe. It is introduced into each anode side electrolysis chamber R1 through the passages 23a and 23b. In the electrolysis operation in such a state, diaphragm electrolysis is performed in each of the diaphragm electrolyzer sections 10b and 10c, electrolyzed alkaline water is generated in each cathode side electrolysis chamber R2, and in each anode side electrolysis chamber R1. Electrolytically generated acidic water is generated. The electrolytically generated acidic water generated in each anode-side electrolysis chamber R1 is led out through the lead-out conduits 22d and 22e. Further, the electrolytically generated alkaline water generated in each cathode-side electrolysis chamber R2 is led out through the lead-out conduits 22b and 22c.

  As described above, in the electrolysis operation of the electrolyzed water generating apparatus, the diaphragm electrolyzer 10a performs the diaphragm electrolysis, and at the same time, the diaphragm electrolyzer 10b and 10c performs the diaphragm electrolysis. Electrolyzed water generated in the electrolysis chamber R of the non-diaphragm electrolysis cell portion 10a is introduced as electrolyzed water into each anode side electrolysis chamber R2 of the electrolysis cell portions 10b and 10c. The electrolytically generated water is weakly alkaline and has slightly sterilizing ability. For this reason, in the electrolysis in the anode-side electrolysis chamber R1 in each of the diaphragm electrolyzer sections 10b and 10c using the electrolyzed water as electrolyzed water, electrolyzed acidic water having weak acidity and high sterilizing ability is generated. In the electrolysis in the cathode side electrolysis chamber R2 in each of the diaphragm electrolyzer sections 10b and 10c, since the water to be electrolyzed is dilute salt water having a predetermined concentration, strong alkaline electrolysis is performed in the same manner as normal diaphragm electrolysis. Productive alkaline water is produced.

  Therefore, according to the electrolyzed water generating apparatus, it is possible to simultaneously perform non-membrane electrolysis and diaphragm electrolysis using one electrolyzer 10, so that weakly acidic electrolyzed acidic water and strong alkaline electrolysis can be performed. The generated alkaline water can be generated synchronously. The electrolyzed water generating device having such a function can be called an epoch-making electrolyzed water generating device, but the electrolyzed water generating device is mainly composed of one electrolytic cell 10 and has a diaphragm membrane. Compared to an electrolyzed water generating apparatus configured by combining two electrolytic cells, an electrolytic cell and a non-membrane electrolytic cell, there is a great advantage that the configuration is simple and small, and the installation space is relatively small.

  Moreover, in the electrolyzed water generating apparatus, when one diaphragm membrane electrolytic cell portion 10a and two diaphragm membrane electrolytic cell portions 10b and 10c are combined, the diaphragm membrane electrolytic cell portions 10b and 10c are provided on both sides of the diaphragm membrane electrolytic cell portion 10a. Are arranged so that the electrodes 13a and 13b of the non-diaphragm electrolytic cell section 10a are also used as the electrodes of one of the electrolysis chambers R1 and R2 constituting each of the diaphragm electrolytic cell sections. For this reason, the said electrolyzed water generating apparatus can be comprised further smaller. In this case, the number of the diaphragm electrolyzer units 10b and 10c and the non-diaphragm electrolyzer unit 10a can be increased, and by increasing these numbers, weakly acidic electrogenerated acidic water and strong alkaline electrolyzed alkaline water The amount of synchronous generation can be greatly increased.

It is a schematic structure figure showing one embodiment of the electrolyzed water generating device concerning the present invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Electrolytic cell, 10a ... Non-diaphragm electrolytic cell part, 10b, 10c ... Separation membrane electrolytic cell part, 11 ... Tank main body, 11a ... Central tank part, 11b ... Left tank part, 11c ... Right tank part, 12a , 13b ... partition wall, 13a, 13b, 13c, 13d ... electrode, 14a, 14b ... diaphragm, 21a, 21b, 21c ... supply line, 22a, 22b, 22c, 22d, 22e ... lead-out line, 23a, 23b ... introduction Pipe line, R ... electrolysis chamber, R1 ... anode side electrolysis chamber, R2 ... cathode side electrolysis chamber.

Claims (3)

An electrolyzed water generating device that synchronously generates weakly acidic electrolyzed acidic water and strong alkaline electrolyzed alkaline water, and the electrolyzed water generating device integrally includes a diaphragm electrolyzer unit and a non-diaphragm electrolyzer unit. An electrolytic cell is provided, and the electrolytic cell is connected to a cathode side electrolysis chamber of the diaphragm electrolyzer unit and an electrolysis chamber of the non-diaphragm electrolyzer unit, and supplies supply water to each electrolysis chamber A lead-out conduit for connecting the cathode-side electrolysis chamber and the anode-side electrolysis chamber of the diaphragm membrane electrolyzer unit to the electrolysis chamber of the non-diaphragm cell electrolyzer unit and deriving electrolyzed water generated in each of the electrolyzer chambers A lead-out line connected in the electrolysis chamber of the diaphragm electrolyzer unit and an electrolysis chamber of the electrolyzer unit connected to the anode electrolyzer chamber of the diaphragm electrolyzer unit It has an introduction pipe that introduces electrolytically generated water produced in Strong alkaline electrolytically generated alkaline water is led out from the cathode side electrolysis chamber of the diaphragm membrane electrolyzer unit, and weakly acidic electrolyzed acidic water is led out from the anode side electrolyzer chamber of the diaphragm membrane electrolyzer unit An electrolyzed water generator characterized by comprising. It is an electrolyzed water generating apparatus of Claim 1, The said electrolyzed water generating apparatus is equipped with the electrolyzer which has at least 2 diaphragm membrane electrolyzer part and at least 1 non-diaphragm electrolyzer part, and each said diaphragm membrane. The electrolyzed water generator is characterized in that the electrolyzer unit is disposed on both sides of the electrolyzer unit with the electrolyzer unit interposed therebetween. It is an electrolyzed water generating apparatus of Claim 2, Each electrode of the said non-diaphragm electrolyzer part serves as any electrode of each said electrolyzed membrane electrolyzer part, The electrolyzed water generator characterized by the above-mentioned.

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