JP2005110751A - Dishwasher and washing machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To achieve a dishwasher and a washing machine equipped with an oxidized water generation device to continuously supply oxidized water having a oxidizing power stronger than that of a hypochlorous acid. <P>SOLUTION: Hydrogen peroxide water is produced by ultrasonic waves generated by a piezoelectric element 8, part of the hydrogen peroxide is converted into oxygen by a honeycomb 9 carrying manganese oxide, ozone is produced from the oxygen by an ultraviolet lamp 10, oxidized water containing hydrogen peroxide and ozone is discharged from an outlet 5 and the oxidized water is used as cleaning water. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention mainly includes an apparatus for generating water (oxidized water) containing hydrogen peroxide and ozone having an oxidizing action using ultrasonic waves and ultraviolet rays, and a dishwasher and a washing machine using the oxidized water as washing water It is about.

  Conventionally, some dishwashers that produce water containing oxidized active species (oxidized water) and use the oxidized water as washing water are equipped with an electrolysis device. By electrolyzing tap water, There has been known a technique in which the acidic water containing hypochlorous acid obtained is supplied into the cabinet, and the dirt adhering to the tableware is oxidatively decomposed and washed by the oxidizing power of hypochlorous acid (for example, patents) Reference 1).

  FIG. 5 is a configuration diagram of an electrolyzer that is a conventional oxidized water generator. As shown in FIG. 5, an anode 26 and a cathode 27 are arranged in a container 21 having an inlet 22 for processing water, an acidic water outlet 23, and an alkaline water outlet 24 so as to face each other with a diaphragm 25 interposed therebetween. A direct current voltage is applied between the anode 26 and the cathode 27 by a power source (not shown), electrolysis of the water to be treated occurs, and water containing hypochlorous acid having an oxidizing action is discharged from the acidic water outlet 23. .

  Conventionally, some washing machines that generate water containing oxidized active species (oxidized water) and use the oxidized water as washing water are equipped with a hypochlorite release material, and hypochlorite release. Oxidizing water containing hypochlorous acid obtained by immersing a material (for example, solidified trichloroisocyanuric acid) in the water to be treated is supplied into the washing tub, and the oxidizing power of hypochlorous acid There has been known a technique in which dirt adhered to clothing is oxidatively decomposed and washed (see, for example, Patent Document 2).

FIG. 6 is a configuration diagram of a conventional oxidized water generator using a hypochlorite releasing material. As shown in FIG. 6, since the hypochlorite releasing material 31 is immersed in the water to be treated in a container having an inlet 29 and an outlet 30 for the water to be treated, the water to be treated after being left for a certain period of time. Is a method in which oxidized water containing hypochlorous acid having a predetermined concentration is used, and the oxidized water is supplied into a washing tub to be used for washing clothes.
Japanese Patent No. 3183118 JP 2001-204993 A

  However, the conventional configuration has a problem that the oxidizing power of the oxidized water is weak because only hypochlorous acid is generated as an oxidizing substance. Moreover, since the pH of the conventional oxidation water was almost neutral, there was a problem that the cleaning ability was not excellent.

  The present invention realizes a dishwasher and a washing machine provided with an oxidized water generating device that supplies oxidized water that solves the above-described conventional problems, and uses oxidized water containing hydrogen peroxide and ozone as oxidizing substances. As it is used as, the dirt adhering to the tableware or clothes is oxidatively decomposed by a strong oxidizing action, and in addition, the oxidized water having an alkaline pH is used as the washing water in order to increase the activity and cleaning ability of hydrogen peroxide. Dirt adhering to tableware or clothing will be efficiently removed.

  In order to solve the above-described conventional problems, a dishwasher according to the present invention includes an inlet portion and an outlet portion of water to be treated, and in order from the inlet portion to the outlet portion, a hydrogen peroxide generator, and a peroxidation A device for generating water and oxygen from hydrogen; and a device for generating oxidized water comprising a device for generating ozone from oxygen by applying energy to oxygen, and the oxidized water discharged from the outlet of the oxidized water generating device. It is supplied into the cabinet as washing water.

  As a result, it is possible to generate oxidized water having a strong oxidizing action containing hydrogen peroxide and ozone as oxidizing substances.

  In addition, the oxidizing water generating apparatus provided in the dishwasher of the present invention has a cleaning ability for soils that are difficult to oxidize at the same time as the activity of hydrogen peroxide increases and the oxidizing power further increases in order to make the pH of the water to be treated ants. Can be increased.

  In order to solve the conventional problem, the washing machine of the present invention includes an inlet portion and an outlet portion of water to be treated, and in order from the inlet portion to the outlet portion, a hydrogen peroxide generator, An oxidation water generator comprising a device for generating water and oxygen from hydrogen peroxide, and a device for generating ozone from oxygen by applying energy to oxygen, and oxidizing the exhaust from the outlet of the oxidized water generator Water is supplied into the washing tub as washing water.

  As a result, it is possible to generate oxidized water having a strong oxidizing action containing hydrogen peroxide and ozone as oxidizing substances.

  In addition, the oxidized water generator provided in the washing machine of the present invention increases the activity of hydrogen peroxide to further increase the oxidizing power and at the same time increase the cleaning ability against stains that are difficult to oxidize in order to make the pH of the water to be treated ants. be able to.

  The dishwasher and washing machine of the present invention contain hydrogen peroxide and ozone as oxidizing substances and use oxidized water having a strong oxidizing action as washing water, so that the attached dirt can be efficiently removed. And a washing machine can be realized.

  1st invention is equipped with the inlet part and outlet part of to-be-processed water, and in order from this inlet part toward this outlet part, a hydrogen peroxide generating device, a device which generates water and oxygen from hydrogen peroxide, A dishwasher comprising an oxidized water generating device comprising an apparatus for applying energy to oxygen and generating ozone from oxygen, and supplying the oxidized water discharged from the outlet of the oxidized water generating device into the cabinet as cleaning water In addition, since water containing hydrogen peroxide and ozone is used for cleaning dishes as substances exhibiting an oxidizing action, dirt attached to the dishes is efficiently cleaned by oxidative decomposition by these oxidizing substances.

  In the second invention, in particular, the hydrogen peroxide generator of the first invention is configured to apply ultrasonic waves to the water to be treated, and the apparatus for generating water and oxygen from hydrogen peroxide carries manganese oxide. The device is made of a mesh or honeycomb-like material that allows water to permeate, and the device that generates ozone from oxygen by applying energy to oxygen irradiates the water to be treated containing oxygen with an ultraviolet ray having a wavelength of 185 nm or less. By adopting such a configuration, it is possible to continuously operate only by supplying power to each device without requiring complicated maintenance such as injection of a medicine.

  A third invention includes an inlet portion and an outlet portion of water to be treated, and in order from the inlet portion toward the outlet portion, a hydrogen peroxide generator, a device that generates water and oxygen from hydrogen peroxide, Oxidized water that includes an apparatus for generating energy from oxygen by supplying energy to oxygen and an apparatus for generating ozone from oxygen, and an apparatus for making the pH of the water to be treated alkaline, and is discharged from the outlet of the apparatus for generating oxidized water Is a dishwasher that supplies water into the cabinet as washing water, and the pH of the oxidized water becomes alkaline, and the activity of hydrogen peroxide is further increased compared to the neutral case, further promoting the oxidative degradation of dirt attached to the tableware. It can increase the efficiency of tableware stains.

  In the fourth invention, in particular, the apparatus for alkalinizing the pH of the water to be treated of the third invention is an electrolysis apparatus adopting a configuration in which the anode and the cathode are opposed to each other with a diaphragm in the water to be treated. Yes, the acidic water generated between the anode and the diaphragm is discarded water, and only alkaline water generated between the cathode and the diaphragm flows out from the outlet portion of the water to be treated. The apparatus can be operated continuously only by supplying electric power to the apparatus without the need for complicated maintenance.

  5th invention is equipped with the inlet part and outlet part of to-be-processed water, and in order from this inlet part toward this outlet part, a hydrogen peroxide generating device, a device which generates water and oxygen from hydrogen peroxide, A washing machine comprising: an oxidized water generating device including an apparatus for applying energy to oxygen to generate ozone from oxygen; and supplying the oxidized water discharged from the outlet portion of the oxidized water generating device as washing water into a washing tub Since water containing hydrogen peroxide and ozone is used for washing clothes as a substance exhibiting an oxidizing action, dirt attached to the clothes is efficiently washed by oxidative decomposition by these oxidizing substances.

  In the sixth invention, in particular, the hydrogen peroxide generator according to the fifth invention is configured to apply ultrasonic waves to the water to be treated, and the apparatus for generating water and oxygen from hydrogen peroxide carries manganese oxide. The device is made of a mesh or honeycomb-like material that allows water to permeate, and the device that generates ozone from oxygen by applying energy to oxygen irradiates the water to be treated containing oxygen with an ultraviolet ray having a wavelength of 185 nm or less. By adopting such a configuration, it is possible to continuously operate only by supplying power to each device without requiring complicated maintenance such as injection of a medicine.

  The seventh invention includes an inlet portion and an outlet portion of water to be treated, and in order from the inlet portion toward the outlet portion, a hydrogen peroxide generator, a device that generates water and oxygen from hydrogen peroxide, Oxidized water that includes an apparatus for generating energy from oxygen by supplying energy to oxygen and an apparatus for generating ozone from oxygen, and an apparatus for making the pH of the water to be treated alkaline, and is discharged from the outlet of the apparatus for generating oxidized water As the washing machine supplies water into the washing tub as washing water, making the pH of the oxidizing water alkaline further enhances the activity of hydrogen peroxide compared to the neutral case. Oxidative decomposition is further promoted, and the efficiency of removing dirt from clothes can be increased.

  In the eighth aspect of the invention, in particular, the apparatus for making the pH of the water to be treated of the seventh aspect alkaline is an electrolysis apparatus adopting a configuration in which the anode and the cathode are opposed to each other with the diaphragm in the water to be treated. Yes, the acidic water generated between the anode and the diaphragm is discarded water, and only alkaline water generated between the cathode and the diaphragm flows out from the outlet portion of the water to be treated. The apparatus can be operated continuously only by supplying electric power to the apparatus without the need for complicated maintenance.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

(Embodiment 1)
FIG. 1 shows a configuration diagram of a dishwasher according to Embodiment 1 of the present invention. In FIG. 1, 1 is a dishwasher, and the tableware 2 which is a to-be-cleaned body is put in the washing cabinet. Reference numeral 3 denotes an oxidized water generator, which includes an inlet 4 for tap water, which is to-be-treated water, and an outlet 5 for treated water. The generated oxidized water is jetted into the cabinet of the dishwasher 1 by a nozzle 6.

  FIG. 2 is a detailed view of the structure of the oxidation water generator 3 provided in the dishwasher. 7 is a cylindrical container, 4 and 5 are inlets and outlets to the cylindrical container 7 of water to be treated, and 8 is an ultrasonic oscillator. A piezoelectric element, 9 is a honeycomb carrying manganese oxide, and 10 is a flowing water type ultraviolet lamp having a peak wavelength of 185 nm.

  The cylindrical container 7 is made of a transparent polycarbonate resin so that the internal reaction can be seen through, but the shape and material are not limited to this as long as the water to be treated does not leak out. As the piezoelectric element 8, a cylindrical ultrasonic oscillator was attached to the inside of the cylindrical container 7, and ultrasonic waves were oscillated by a resonance circuit (not shown). As the honeycomb 9 supporting manganese oxide, a deodorizing honeycomb used in a commercial refrigerator was used. As the ultraviolet lamp 10, a flowing water type ozone lamp having a peak wavelength of 185 nm and an output of 5 W was used, and was lit by a lighting circuit (not shown).

  Tap water is passed through the inlet 4 at 0.2 L / min, ultrasonic waves (frequency 500 kHz) are generated by a resonance circuit (not shown) so that the output from the piezoelectric element 8 is 3 W, and the ultraviolet lamp 10 is also turned on at the same time. It was. Thereby, from the outlet 5, oxidized water having a hydrogen peroxide concentration of 3 ppm and a dissolved ozone concentration of 2 ppm could be obtained. The dishwasher 1 using this oxidized water as washing water was able to effectively remove the dirt adhering to the tableware 2 without using a detergent.

(Embodiment 2)
FIG. 3 shows a detailed configuration diagram of the oxidized water generator of the dishwasher according to Embodiment 2 of the present invention. In the present embodiment, the dishwasher is configured by attaching the oxidized water generator of FIG. 3 to the site of the oxidized water generator 3 in FIG.

  In FIG. 3, the cylindrical container 7, the inlet 4 to the cylindrical container 7 of the water to be treated, the piezoelectric element 8 which is an ultrasonic oscillation element, the honeycomb 9 supporting manganese oxide, and the flowing water type ultraviolet lamp 10 having a peak wavelength of 185 nm are implemented as described above. This is the same as Form 1. 11 is an electrolysis diaphragm, and 12 and 13 are electrolysis anodes and cathodes, respectively, and platinum-plated titanium plates were used. Further, the anode 12 and the cathode 13 were respectively placed in parallel with the diaphragm 11 at a distance of 5 mm, and a DC voltage of 8 V was applied between the anode 12 and the cathode 13 by a constant voltage circuit (not shown). Reference numeral 14 denotes an outlet of alkaline oxidized water discharged from between the diaphragm 11 and the cathode 11, and reference numeral 15 denotes an acidic waste water outlet discharged from between the diaphragm 11 and the anode 12.

  At the same time that tap water was passed through the inlet 4 at 0.1 L / min, ultrasonic waves (frequency: 500 kHz) were generated from the piezoelectric element 8 by a resonance circuit (not shown) so that the output was 3 W. At the same time, the ultraviolet lamp 10 was turned on and a DC voltage of 8 V was applied between the anode 12 and the cathode 13 to electrolyze the water to be treated. In this case, about 50 cc / min of water to be treated is discharged from each of the alkaline oxidized water outlet 15 and the acidic waste water outlet 14, and the alkaline oxidized water has a pH of about 10.5 and a hydrogen peroxide concentration of 2. The dissolved ozone concentration was 5 ppm and 5 ppm. The dishwasher 1 using this oxidized water as washing water can effectively remove the dirt adhering to the tableware 2 without using a detergent.

(Embodiment 3)
FIG. 4 is a configuration diagram of a washing machine according to Embodiment 3 of the present invention. The washing machine 16 includes an oxidized water generating device 3 having an inlet 4 for tap water that is to be treated and an outlet 5 for oxidized water, and the oxidized water discharged from the outlet 5 is supplied to the washing tub 17 as washing water. It has become.

  In the present embodiment, the same apparatus as in the first embodiment is used as the oxidized water generating apparatus 3, and the apparatus is operated under the same conditions. From the outlet 5, the hydrogen peroxide concentration is 3 ppm and the dissolved ozone concentration is 2 ppm. The washing machine of the present embodiment, which can obtain oxidized water and uses oxidized water containing hydrogen peroxide and ozone as washing water, oxidizes and decomposes dirt attached to clothes without using a detergent, thereby improving efficiency. Dirt can be removed well.

(Embodiment 4)
The washing machine in the present embodiment has the same configuration as that of the third embodiment except that the oxidized water generating device described in the second embodiment is used as the oxidized water generating device 3 in the third embodiment.

  In this case, the oxidized water generator is operated under the same conditions as in Embodiment 2, the pH is about 10.5, the hydrogen peroxide concentration is 2.5 ppm, and the dissolved ozone concentration is 1.5 ppm. The washing machine according to the present embodiment, which can obtain water and uses alkaline oxidizing water containing hydrogen peroxide and ozone as washing water, oxidizes and decomposes dirt attached to clothes without using a detergent, Dirt can be removed efficiently.

  As described above, since the dishwasher and the washing machine according to the present invention use alkaline water having an increased hydrogen peroxide activity and oxidized water containing ozone having strong oxidizing power as washing water, Or the dirt adhering to the clothes is oxidized and decomposed, and the dirt is efficiently removed. Therefore, the oxidized water generating apparatus according to the present invention can be applied to various washing machines using washing with oxidized water in addition to the dishwasher and the washing machine according to the present invention.

The block diagram of the dishwasher in Embodiment 1 of this invention Detailed view of the structure of the oxidized water generator provided in the dishwasher Detailed configuration diagram of the oxidized water generator provided in the dishwasher in Embodiment 2 of the present invention Configuration diagram of washing machine in Embodiment 3 of the present invention Configuration diagram of an electrolyzer that is a conventional oxidized water generator Configuration diagram of conventional oxidation water generator using hypochlorous acid release material

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Dishwasher 2 Tableware 3 Oxidized water production | generation apparatus 4 Inlet 5 Outlet 6 Nozzle 7 Cylindrical container 8 Piezoelectric element 9 Honeycomb 10 Ultraviolet lamp 11 Diaphragm 12 Anode 13 Cathode 14 Waste water outlet 15 Oxidized water outlet 16 Washing machine 17 Washing tub

Claims (8)

An inlet portion and an outlet portion of the water to be treated are provided, and in order from the inlet portion to the outlet portion, a hydrogen peroxide generator, a device that generates water and oxygen from hydrogen peroxide, and energy are given to oxygen. And a device for generating ozone from oxygen. A dishwasher that supplies oxidized water discharged from the outlet of the oxidized water generating device into the cabinet as cleaning water. The hydrogen peroxide generator is configured to apply ultrasonic waves to the water to be treated, and to generate water and oxygen from hydrogen peroxide, a mesh- or honeycomb-like material capable of water permeation carrying manganese oxide. The dishwasher according to claim 1, wherein the apparatus for generating ozone from oxygen by applying energy to oxygen is configured to irradiate water to be treated containing oxygen with ultraviolet light having a wavelength of 185 nm or less. An inlet portion and an outlet portion of the water to be treated are provided, and in order from the inlet portion to the outlet portion, a hydrogen peroxide generator, a device that generates water and oxygen from hydrogen peroxide, and energy are given to oxygen. And an apparatus for generating ozone from oxygen and an apparatus for generating oxidized water comprising an apparatus for making the pH of the water to be treated alkaline, and using the oxidized water discharged from the outlet of the oxidized water generating apparatus as washing water Supplying dishwasher. The apparatus for making the pH of the water to be treated alkaline is an electrolysis apparatus that employs a structure in which the anode and the cathode are opposed to each other with the diaphragm interposed in the water to be treated, and the acidic water generated between the anode and the diaphragm is discarded. The dishwasher according to claim 3, wherein water is used, and only alkaline water generated from between the cathode and the diaphragm flows out from the outlet of the water to be treated. An inlet portion and an outlet portion of the water to be treated are provided, and in order from the inlet portion to the outlet portion, a hydrogen peroxide generator, a device that generates water and oxygen from hydrogen peroxide, and energy are given to oxygen. And a device for generating ozone from oxygen. A washing machine that supplies oxidized water discharged from the outlet of the oxidized water generating device as wash water into a washing tub. The hydrogen peroxide generator is configured to apply ultrasonic waves to the water to be treated, and to generate water and oxygen from hydrogen peroxide, a mesh- or honeycomb-like material capable of water permeation carrying manganese oxide. The washing machine according to claim 5, wherein the apparatus for generating ozone from oxygen by applying energy to oxygen is configured to irradiate water to be treated containing oxygen with ultraviolet light having a wavelength of 185 nm or less. An inlet portion and an outlet portion of the water to be treated are provided, and in order from the inlet portion to the outlet portion, a hydrogen peroxide generator, a device that generates water and oxygen from hydrogen peroxide, and energy are given to oxygen. And an apparatus for generating ozone from oxygen and an apparatus for generating oxidized water comprising an apparatus for making the pH of the water to be treated alkaline, and a washing tub using the oxidized water discharged from the outlet of the oxidized water generating apparatus as washing water Washing machine to supply inside. The apparatus for making the pH of the water to be treated alkaline is an electrolysis apparatus that employs a structure in which the anode and the cathode are opposed to each other with the diaphragm interposed in the water to be treated, and the acidic water generated between the anode and the diaphragm is discarded. The washing machine according to claim 7, wherein water is used, and only alkaline water generated from between the cathode and the diaphragm flows out from an outlet portion of water to be treated.

Images