JP5595214B2 - Sterilization water supply system - Google Patents

Description

  The present invention relates to a sterilizing water supply system including a sterilizing water production apparatus that generates sterilizing water containing hypochlorous acid by electrolyzing chlorine ion-containing water.

  In recent years, measures for the use of sterilizing water have been strengthened for the purpose of preventing infection and improving the sanitary environment in hand washing in hospitals and welfare facilities and in food and tableware washing operations in food processing factories and kitchen facilities. Here, for example, a sterilizing water production apparatus that supplies sterilizing water containing hypochlorous acid, hypochlorite ions, etc. by electrolyzing a sodium chloride aqueous solution is used. Conventionally, sterilizing water from the sterilizing water production apparatus is discharged or stopped using a contact type switch, or by using a detection signal from a non-contact type optical sensor, etc. It was common to open / close and start / stop the pump.

  However, when a contact-type switch is used, there is a risk of infection with pathogenic bacteria during the operation. On the other hand, when a non-contact type optical sensor or the like is used, an optical sensor or the like is provided in the sterilizing water manufacturing apparatus main body having a dedicated faucet for discharging the sterilizing water or a remote control unit separated from the sterilizing water manufacturing apparatus main body. The main body or the remote control unit is arranged around a place where hand washing or cleaning work is performed. In addition, a basin or sink for performing hand washing or washing work is also provided with a faucet for supplying normal tap water. Therefore, when installing the sterilizing water production apparatus main body or remote control part which has a sterilizing water dedicated faucet around the faucet for water supply, a large area is required and there is a problem in installation. Moreover, there also existed a fault that the external appearance when installed was bad.

  When sterilizing water is used for washing, for example, it is economical to use sterilizing water at the end after vegetables and the like are washed with tap water. If you want to use sterilized water and tap water alternately in this way, if the water supply faucet is not an automatic faucet, even if the corner sterilizing water can be discharged without contact, when the open / close handle of the water supply faucet is operated, Occurs. Moreover, even if an automatic faucet type water supply faucet could be used, there was a problem in installation as described above. Furthermore, when hand washing with sterilized water is very short, sufficient effect of sterilized water is not exhibited. When repeating washing work, switching operation of water discharge / stop water and sterilized water / tap water is troublesome. There were also problems such as.

  Electrolysis of chlorine ion-containing water, such as aqueous sodium chloride solution or aqueous hydrochloric acid solution, produces hypochlorous acid and / or hypochlorite ions in the water. So far, sterilization methods using the generated hypochlorous acid and hypochlorite ions, particularly hypochlorous acid having a high sterilizing effect, and a method and apparatus for producing sterilizing water containing these chemical species have been disclosed. ing.

  Patent Document 1 (Japanese Patent Laid-Open No. 2006-239531) states that “a pair of AC electrodes in water containing sodium chloride, a first ground electrode having a smaller area to the same area than the AC electrodes, and the pair of AC electrodes. A second ground electrode having a larger area than the total area and capable of switching between a grounded state and a non-grounded state, and placing the second grounded electrode in a non-grounded state, and between the pair of AC electrodes An alternating current is applied and electrolyzed to generate sodium hypochlorite salt to sterilize the water, and then the second ground electrode is switched to a ground state and an alternating current is applied between the pair of AC electrodes. And a method for purifying water using sodium hypochlorite, wherein the water is purified by reducing the sodium hypochlorite to sodium chloride by electrolysis.

  Patent Document 2 (Japanese Patent Application Laid-Open No. 2005-262003) states that “three or more electrode plates are provided in the electrolytic cell, and only the electrode plates at both ends are connected in series to the anode and the cathode of the DC power source, respectively. Describes a method for decolorizing colored wastewater, in which a colored wastewater containing a chlorine compound and a magnesium compound and / or a calcium compound is circulated and an electrolytic treatment is performed by passing a direct current.

  Patent Document 3 (Japanese Patent Laid-Open No. 10-180259) discloses that “the first electrode is brought into contact with the conductive adsorption portion through which raw water such as tap water passes and the second electrode is spaced from the conductive adsorption portion. Disinfecting, applying a positive DC voltage with the first electrode as an anode and the second electrode as a cathode, capturing bacteria and the like in the conductive adsorption portion, and suppressing the growth of the attached bacteria and the like In the purified water sterilizer having a mode, a third electrode having the same polarity as the first electrode is disposed between the second electrode and the conductive adsorption portion so as to face the second electrode, It describes a “purified water sterilizer” having polarity switching means for switching polarity and voltage setting means capable of setting a voltage value applied to each of the electrodes.

  Many of the sterilizing water production apparatuses employ an electrolysis method, and are roughly classified into a structure using a diaphragm between the anode and the cathode (membrane type) and a structure not using it (non-diaphragm type). In either structure, a titanium plate coated with a noble metal such as platinum or iridium or an oxide thereof is generally used as an anode and a cathode. Further, as a general method for producing sterilized water at a low cost, it is known to generate hypochlorous acid by electrolyzing chlorine ion-containing water in which salt is dissolved in tap water, groundwater or the like.

  Chlorine ion-containing water prepared by adding sodium chloride or the like to tap water or the like generally contains components of alkaline earth metal ions such as magnesium and calcium and ionic silica dissolved in water. When electrolysis is performed continuously for a long period of time using such chlorine ion-containing water, components such as alkaline earth metal ions and ionic silica are deposited on the surface of the cathode as scales, and the current does not flow gradually. . As a result, there was a problem that the electrolysis ability of the sterilizing water production apparatus was reduced and the amount of hypochlorous acid produced was reduced.

  In order to avoid or solve the above problem, a method of using pure water instead of tap water or softening tap water using a water softener is adopted. However, when these methods are used, the production cost of pure water and the running cost associated with the use of the water softener are generated. In addition, a scale having an opposite polarity is applied between the anode and the cathode to peel off the scale attached to the cathode. According to this method, in the initial stage, the scale is completely peeled off and the electrolysis performance can be maintained. However, as the scale peeling is repeated, the scale that cannot be peeled off remains on the cathode surface. As a result, the resistance of the cathode surface increases and a higher voltage is required to peel the scale. When scale peeling is performed at such a high voltage, there are cases in which a pinhole is formed in a platinum coating (for example, platinum plating) on the electrode surface and the platinum coating is peeled off. For this reason, when such a method is used, an electrode composed of an expensive platinum-coated titanium plate has to be periodically replaced.

JP 2006-239531 A JP-A-2005-263003 Japanese Patent Application Laid-Open No. 10-180259

  The present invention enables non-contact operation of water discharge and water stop to prevent infection by pathogenic bacteria, etc., reduces the installation area to improve the installation and improve the appearance of the water discharge, Disclosed is a sterilizing water supply system with a non-contact switching function that can select the type of fluid to be contacted without contact and improve the efficiency of hand washing and cleaning operations.

  The present application provides the following inventions in order to solve the above problems.

[1] Disinfecting water production device,
A sterilizing water supply pipe connected to the sterilizing water manufacturing apparatus and having a first electric two-way valve for supplying sterilizing water generated by the sterilizing water manufacturing apparatus;
A water supply pipe for supplying tap water having a second electric two-way valve;
An integrated pipe that integrates the ends of the sterilizing water supply pipe and the water supply pipe at one end, and supplies sterilizing water, tap water, or a mixed water thereof from the other end,
A sensor unit having an optical sensor and an indicator lamp of a fluid type selected by a detection signal of the optical sensor; and connected between the sensor unit and the first and second electric two-way valves, A fluid type is selected from sterilizing water, tap water, or a mixed water thereof according to a detection signal of an optical sensor of the unit, and the first and second fluids are supplied to the integrated pipe. A control unit that controls the open / closed state of the electric two-way valve
A sterilizing water supply system with a non-contact switching function.

[2] Disinfecting water production device,
A sterilizing water supply pipe connected to the sterilizing water manufacturing apparatus for supplying the sterilizing water generated by the sterilizing water manufacturing apparatus;
Water supply piping for supplying tap water,
An integrated three-way valve that has an electric three-way valve connected to the end of the sterilizing water supply pipe and the water supply pipe at one end, and supplies sterilizing water, tap water, or a mixed water thereof from the other end;
A sensor unit having an optical sensor and an indicator lamp of a fluid type selected by a detection signal of the optical sensor, and a detection signal of the optical sensor of the sensor unit connected between the sensor unit and the electric three-way valve By selecting a fluid type from sterilizing water, tap water or a mixed water thereof, a control unit for controlling the open / closed state of the electric three-way valve so that the fluid of the selected fluid type is supplied to the integrated pipe,
A sterilizing water supply system with a non-contact switching function.

  [3] The sterilizing water production apparatus includes an anode, a cathode, a third electrode, and a DC power source capable of applying a DC voltage between the cathode and the third electrode, and the anode is a noble metal, its oxide or The sterilizing water supply system with a non-contact switching function according to any one of [1] or [2], wherein the sterilizing water supply system is composed of titanium coated with a combination thereof, and the cathode and the third electrode are composed of titanium.

  [4] The sterilizing water production apparatus further includes a polarity switching device that reverses the polarity of a DC voltage applied between the cathode and the third electrode, and has a non-contact switching function according to [3]. Water supply system.

[5] The sensor unit further includes a water discharge method indicator selected from a continuous mode or an automatic mode including one or a plurality of water discharge patterns.
The control unit selects a water discharge method according to a detection signal of an optical sensor of the sensor unit, further selects a fluid type when the water discharge method is a continuous mode, and a water discharge pattern when the water discharge method is an automatic mode. Select further,
The sterilizing water supply system further includes an on / off switch having an optical sensor,
The control unit is configured to start or stop the supply of the fluid of the selected fluid type to the integrated pipe when the selected water discharge method is in a continuous mode according to a signal from the on / off switch. And when the selected water discharge method is an automatic mode, the first and second electric two-way valves are controlled in accordance with the selected water discharge pattern. Or the disinfection water supply system with a non-contact switching function as described in any one of [1]-[4] which controls the opening-and-closing state of the said electric three-way valve.

  [6] The non-contact switching according to [5], wherein the control unit registers the state of water discharge and water stop executed in the continuous mode as a water discharge pattern of the automatic mode, and the water discharge pattern can be selected after registration. Sterilized water supply system with functions.

[7] The control unit includes a display device that records the execution status of water discharge and water stop and displays the execution status.
[1] to [6], wherein the control unit has a warning device that sets a water discharge time for sterilizing water and issues a warning when water discharge less than the set water discharge time is executed. The sterilizing water supply system with the non-contact switching function described in 1.

  According to the sterilizing water supply system with a non-contact switching function of the present invention, the sterilizing water and tap water are discharged from one integrated pipe, so that the integrated pipe is provided in a basin or a sink. By connecting to the faucet directly or via an automatic water supply unit, the installation area of the sterilizing water supply system is reduced and the appearance of the appearance is improved. In addition, since the sterilizing water supply system with a non-contact switching function of the present invention can use a normal automatic water supply unit as it is, normal tap water or a mixed water thereof is selected in a non-contact manner in addition to sterilizing water. Therefore, the operability and convenience are improved, and a high sanitary environment can be realized. Furthermore, since the fluid type suitable for use conditions can be selected, expensive sterilization water can be used appropriately and economical efficiency improves.

  The above description should not be construed as disclosing all embodiments of the present invention and all advantages related to the present invention.

1 is a schematic view of a sterilizing water supply system according to a first embodiment of the present invention. It is the schematic of the sterilization water manufacturing apparatus in one embodiment of this invention. It is the schematic which shows the shape and arrangement | positioning of an anode, a cathode, and a 3rd electrode in one embodiment of this invention. FIG. 6 is a schematic diagram showing the shape and arrangement of an anode, a cathode and a third electrode in another embodiment of the present invention. It is explanatory drawing of the manufacturing method of sterilization water in one embodiment of this invention. It is explanatory drawing of the manufacturing method of sterilization water in one embodiment of this invention. It is explanatory drawing of the manufacturing method of sterilization water in one embodiment of this invention. It is the schematic of the sterilization water manufacturing apparatus in another embodiment of this invention. It is the one part schematic of the sterilization water supply system by the 2nd embodiment of this invention. It is the schematic of the sterilization water supply system by the 3rd embodiment of this invention. It is an example of the water discharge pattern of the automatic mode in the 3rd embodiment of the present invention.

  Hereinafter, the present invention will be described in more detail with reference to the drawings for the purpose of illustrating representative embodiments of the present invention. However, the present invention is not limited to these embodiments.

(1) 1st embodiment FIG. 1: is schematic which shows the structure of the 1st embodiment of the sterilization water supply system with a non-contact switching function of this invention. The sterilizing water supply system according to the first embodiment supplies the sterilizing water produced by the sterilizing water production device 2 connected to the sterilizing water production device 2 and the sterilizing water production device 2 and having the first electric two-way valve 8a. The sterilizing water supply pipe 5, the water supply pipe 6 having the second electric two-way valve 8b, supplying tap water, the ends of the sterilizing water supply pipe 5 and the water supply pipe 6 are integrated at one end, and the other end A sensor unit 3 having an integrated pipe 7 for supplying sterilized water, tap water or a mixed water thereof, an optical sensor 14, and indicator lamps 15a, 15b, 15c of fluid types selected by detection signals of the optical sensor 14, In addition, the fluid type is connected between the sensor unit 3 and the first and second electric two-way valves 8a and 8b, and the fluid type is sterilized water, tap water, or mixed water based on the detection signal of the optical sensor 14 of the sensor unit 3. Select from -Option fluid type of fluid is provided with a control unit 4 for controlling the first and second electric two-way valve 8a, the closing state of the 8b to be supplied to the integrated piping 7.

  The sterilizing water supply system with a non-contact switching function of the present invention can be used together with, for example, a washbasin unit. 1 includes a wash basin 11 set on a dressing table (not shown) and the like, and a faucet 12, a water supply fitting / drainage fitting (not shown), and the like. Further, the sterilizing water supply system with a non-contact switching function of the present invention can be used by connecting the integrated pipe 7 to an automatic water supply unit for the purpose of non-contact water discharge and water stoppage. In this case, the automatic water supply unit 13 is arrange | positioned at the lower part of the washbasin 11, etc., for example, as shown in FIG. The automatic water supply unit 13 is installed between the integrated pipe 7 and the faucet 12, and incorporates an electric two-way valve (not shown). The electric two-way valve of the automatic water supply unit 13 is controlled to open and close by an optical sensor (not shown) arranged near the faucet 12. Commercially available products can be used for the washing unit and the automatic water supply unit.

  A sensor unit 3 is attached in the vicinity of the washing unit 1, and the sensor unit 3 has an optical sensor 14 having a sensing distance of about 20 cm, for example. The sensor unit 3 is provided with fluid type indicator lamps 15a, 15b, and 15c. The indicator lamps 15a, 15b, and 15c are alternately switched on by the detection signal of the optical sensor 14 and light up. A control unit 4 is connected to the sensor unit 3 via a signal line, and the control unit 4 receives a detection signal from the sensor unit 3.

  The control unit 4 includes a motor-operated valve operation circuit (not shown), and the motor-operated valve operation circuit sends a control signal to the electric two-way valves 8 a and 8 b based on the detection signal from the sensor unit 3. In this way, the opening and closing of the electric two-way valves 8a and 8b is controlled by the control unit 4. The water supply pipe 6 is a pipe that supplies tap water, and may be branched from a pipe that supplies tap water to the sterilizing water production apparatus.

  When the optical sensor 14 of the sensor unit 3 is blocked by hand, the indicator lamps 15a, 15b, and 15c are alternately switched and lighted. When the “sterilizing water” indicator lamp 15 a is lit, the control unit 4 sends a signal to open the electric two-way valve 8 a of the sterilizing water supply pipe 5. At this time, since the automatic water supply unit 13 is not operated, water is not discharged from the faucet 12. When the “sterilized water” indicator lamp 15a is lit and the optical sensor of the automatic water supply unit 13 disposed near the faucet 12 is manually shut off, the electric two-way valve of the automatic water supply unit 13 opens, and the sterilized water production apparatus The sterilized water generated in 2 is discharged from the faucet 12 through the sterilized water supply pipe 5 and the integrated pipe 7. After use, when the optical sensor of the automatic water supply unit 13 stops detecting the hand, the electric two-way valve of the automatic water supply unit 13 is closed and the sterilizing water from the faucet 12 is stopped. Even in this state, the “sterilizing water” indicator lamp 15a remains lit.

  When it is desired to discharge tap water, the indicator lamps 15a, 15b, and 15c are alternately switched back to the lighting state by blocking the optical sensor 14 by hand, and the “tap water” indicator lamp 15b is turned on. As a result, the electric two-way valve 8a is closed and the electric two-way valve 8b is opened, and the tap water from the water supply pipe 6 can be supplied to the automatic water supply unit 13. Thereafter, when the “tap water” indicator lamp 15b is turned on, tap water can be discharged and stopped by performing the same operation as in the case of sterilizing water.

  When the mixed water is desired to be discharged, the indicator lamps 15a, 15b, and 15c are alternately switched back to the lighting state by blocking the optical sensor 14 by hand, and the “mixed water” indicator lamp 15c is turned on. As a result, the electric two-way valve 8a and the electric two-way valve 8b are opened at an appropriate opening, and the sterilizing water from the sterilizing water supply pipe 5 and the tap water from the water supply pipe 6 to the automatic water supply unit 13 at a set ratio. It will be ready to supply. Thereafter, when the “mixed water” indicator lamp 15c is lit, the mixed water can be discharged and stopped by performing the same operation as in the case of the sterilizing water or tap water. The mixing ratio of the sterilizing water and tap water in the mixed water can be adjusted by the opening degree of the electric two-way valves 8a and 8b. The opening degree of the electric two-way valves 8a and 8b may be set in advance in the control unit 4, or may be adjusted manually or automatically based on the measured numerical value by attaching a residual chlorine concentration meter to the integrated pipe 7. .

  After the water stoppage, the indicator lamp of the fluid type that has flowed out last may hold the lighting state. When there is no use for a certain period of time, the indicator lamp may return to the initial state (for example, the off state).

  According to the sterilizing water supply system with the non-contact switching function of the first embodiment, the electric two-way valves 8a and 8b controlled by the control unit 4 based on the detection signal from the sensor unit 3 are connected to the sterilizing water supply pipe 5 and the water supply. Since each of the pipes 6 is provided, the sterilizing water supply pipe 5 and the water supply pipe 6 are integrated into one integrated pipe 7, and this integrated pipe 7 is connected to the automatic water supply unit 13, so that the sterilizing water, tap water and mixed water are switched. Then, water can be discharged from the tap 12. Therefore, when the user wants to use tap water instead of sterilizing water as in the prior art, only tap water can be used in a non-contact manner without operating the opening / closing handle of the water supply faucet. Moreover, by adjusting the opening degree of the electric valve, mixed water in which sterilized water and tap water are mixed at an arbitrary ratio can be supplied, and expensive sterilized water can be appropriately used. Furthermore, since a plurality of types of fluids can be discharged from a single faucet, installation is improved, a space around the faucet is secured, and the appearance of the facade is also improved.

  FIG. 2 is a schematic view of a sterilizing water production apparatus in one embodiment of the present invention. When the sterilizing water production apparatus of this embodiment is used, sterilizing water can be produced stably over a long period of time, the sterilizing water production apparatus itself can be made inexpensive, and the running cost associated with the production of sterilizing water, particularly It is possible to reduce the running cost related to the electrode.

  The sterilizing water production apparatus 2 includes an anode (anode) 50, a cathode (cathode) 52, and a third electrode 54. The anode 50, the cathode 52, and the third electrode 54 are connected to a polarity switching device (not shown). ). The sterilizing water production apparatus 2 is a so-called diaphragm type. This non-diaphragm type embodiment has a simpler apparatus configuration than the diaphragm type embodiment described later, so that a sterilizing water production apparatus can be manufactured at a low cost. Since it can move freely, there is an advantage that the electrolysis speed is high and there is no running cost associated with the replacement of the diaphragm.

  The anode 50 is an electrode composed of titanium coated with a noble metal, an oxide thereof, or a combination thereof. As the noble metal, those having electrocatalytic activity can be used, and examples thereof include platinum, ruthenium, iridium, rhodium, and combinations thereof, and platinum, iridium, and combinations thereof are preferable. Since the catalyst performance is high, the anode 50 is preferably platinum-coated titanium.

  The cathode 52 and the third electrode 54 are electrodes made of titanium. The cathode 52 and the third electrode 54 may have an oxide film (titanium oxide film) on the electrode surface, but are not coated with other types of metals. In one embodiment, a titanium oxide film is pre-formed on the electrode surface, for example, by heat treating the titanium electrode at about 400-600 ° C. for about 10 minutes to 1 hour. If a titanium oxide film is formed in advance on the surface of the cathode 52, the DC voltage applied between the anode 50 and the cathode 52 during the production of sterilizing water is slightly higher, but is necessary for electrolysis of chlorine ion-containing water. Therefore, the amount of scale attached to the surface of the cathode 52 can be effectively reduced while flowing a large current. The thickness of the titanium oxide film is generally about 1 nm or more and about 130 nm or less, and preferably about 5 nm or more and about 100 nm or less. Further, in order to effectively reduce the amount of scale attached to the third electrode surface in the step of removing the scale from the cathode surface, such a titanium oxide film may be formed on the surface of the third electrode 54 in advance. .

  The dimensions and shapes of the anode 50, the cathode 52, and the third electrode 54 can be appropriately determined according to the required capacity and installation location of the sterilizing water production apparatus. Examples of the shape of the electrode include a plate shape, a round bar shape, a square bar shape, a hollow cylindrical shape, and the like, and it is easy to be accommodated in a generally used square electrolytic cell and a large effective treatment area per unit mass. A plate electrode is preferred. In FIG. 2, the anode 50 and the cathode 52 face each other, and the third electrode 54 is disposed obliquely below the cathode 52. The arrangement of these electrodes and the distance between the electrodes are the same as those of the sterilizing water production apparatus. It can be determined as appropriate according to the installation location, the installation position of the chlorine ion-containing water supply line and the sterilizing water supply pipe, the capacity of the DC power supply, the chlorine ion concentration of the chlorine ion-containing water, and the like. However, the third electrode 54 is arranged so as not to enter between the anode 50 and the cathode 52, that is, so that the third electrode 54 does not shield the electric field generated between the anode 50 and the cathode 52 during the production of sterilizing water. The For example, as shown in FIG. 3 a, the anode 50, the cathode 52, and the third electrode 54 are plate-shaped, the anode 50 and the cathode 52 face each other, and the cathode 52 and the third electrode are opposite to the anode facing surface of the cathode 52. These electrodes may be arranged in a line so that 54 are opposed to each other. Further, as shown in FIG. 3 b, a rod-shaped electrode anode 50 may be disposed at the center, a hollow cylindrical electrode cathode 52 may be disposed around the anode 50, and a third electrode 54 may be disposed so as to surround the cathode 52. .

  The DC power source 56 applies a DC voltage between the anode 50 and the cathode 52 at the time of manufacturing the sterilizing water. Further, the DC power source 56 can also apply a DC voltage between the cathode 52 and the third electrode 54. In FIG. 2, all of the anode 50, the cathode 52, and the third electrode 54 are connected to one DC power source. However, the sterilizing water production apparatus 2 includes a first DC power source that applies a DC voltage to the anode 50 and the cathode 52. The cathode 52 and the third electrode 54 may be separately provided with a second DC power source that applies a DC voltage. The direct current power source may be a direct current stabilized power source capable of flowing a constant current.

  The sterilizing water production apparatus 2 may further include a polarity switching device that reverses the polarity of the DC voltage applied between the cathode 52 and the third electrode 54. In the present invention, when peeling the scale attached to the cathode surface, a DC voltage is applied such that the cathode side is positive and the third electrode side is negative. As a result, the scale may adhere to the surface of the third electrode that functions as the cathode. The polarity switching device makes it possible to apply a reverse polarity DC voltage, that is, a DC voltage in which the third electrode side is positive and the cathode side is negative. It is also possible to remove the scale attached to the surface. The polarity switching device may include an operation mechanism that performs polarity inversion every predetermined time.

  The anode 50, the cathode 52, and the third electrode 54 are accommodated inside the electrolytic cell 58. The shape of the electrolytic cell 58 may be various such as a cube, a rectangular parallelepiped, and a cylinder. A drain 60 is attached to the bottom of the electrolytic cell 58, and the drain 60 can be opened and closed by a manual or automatic drain valve 62. The bottom of the electrolytic cell 58 may be inclined so as to become lower toward the drain 60, and the inclination angle can be generally about 25 degrees to about 35 degrees. Connected to the electrolytic bath 58 are a water supply pipe 64 for supplying chlorine ion-containing water, which is a raw material for sterilizing water, into the tank, and a sterilizing water supply pipe 5 for taking out the manufactured sterilizing water from the tank to the outside. . In FIG. 2, the water supply pipe 64 is attached to the upper side surface of the electrolytic cell 58, and the sterilizing water supply pipe 5 is attached so as to take out sterilized water from the lower side surface of the electrolytic cell 58. 64 and the position where the sterilizing water supply pipe 5 is attached to the electrolytic bath 58 can be appropriately determined according to the shape and installation location of the sterilizing water production apparatus. The supply of water from the water supply pipe 64 to the electrolyzer 58 and the supply of sterilized water to the outside through the sterilizer water supply pipe 5 use the pressure of the water source to which the water supply pipe 64 is connected, with the electrolyzer 58 being sealed. May be. Alternatively, the water supply pipe 64 and / or the sterilizing water supply pipe 5 may include a pump. In an embodiment, the drain 60 can also be used as the sterilizing water supply pipe 5. As the chloride ion-containing water, an aqueous sodium chloride solution, for example, a saline solution, an aqueous potassium chloride solution, an aqueous hydrochloric acid solution, seawater, or the like may be used, and these may be supplied to the electrolytic cell 58 after being filtered as necessary. The chlorine ion concentration contained in the chlorine ion-containing water is generally about 0.01 mass% or more and about 10 mass% or less, and preferably about 0.05 mass% or more and about 5.0 mass% or less.

  4a to 4c are explanatory diagrams of a method for producing sterilizing water in one embodiment of the present invention. In these figures, for the purpose of explaining the basic principle of the present method, only the DC power source 56 provided with the anode 50, the cathode 52, the third electrode 54 and the polarity switching device is shown. The method for producing sterilizing water in one embodiment of the present invention will be described in detail below with reference to FIG. 2 and FIGS.

Chlorine ion-containing water is supplied from the water supply pipe 64 to the inside of the electrolytic cell 58. When the chlorine ion-containing water is arranged around the anode 50 and the cathode 52 so that there is conduction between the anode 50 and the cathode 52, a positive voltage is applied to the anode side by a DC power source 56 as shown in FIG. 4a. When a negative voltage is applied to the cathode side, electrolysis of chlorine ion-containing water occurs, and sterilizing water containing hypochlorous acid is generated. The DC voltage used for electrolysis and the current density per unit area of the electrode are generally about 0.5 V or more and about 20 V or less, and about 0.5 A / m ² or more and about 50 A / m ² or less.

When the chlorine ion-containing water is electrolyzed, chlorine ions are converted to chlorine on the anode side, and the chlorine reacts with water to produce hypochlorous acid and hydrochloric acid. On the other hand, for example, when chlorine ion-containing water is a sodium chloride aqueous solution having a constant concentration, sodium hydroxide and hydrogen gas are generated by the reaction of sodium ions and water on the cathode side. At this time, the amount of hypochlorous acid varies depending on the pH in water.
Anode side: 2Cl ⁻ → Cl ₂ + 2e ⁻
Cl ₂ + H ₂ O → HClO + HCl
Cathode side: 2Na ⁺ + 2H ₂ O + 2e ⁻ → 2NaOH + H ₂ ↑

In general, when electrolysis is performed with a non-diaphragm membrane, the pH of the entire sterilized water becomes neutral to weakly alkaline (about pH 7 to 8). In weak alkalinity, the amount of hypochlorite ions increases (HClO + OH ⁻ → ClO ⁻ + H ₂ O) and exists in water as a salt with a cation in the system, for example, sodium hypochlorite. It is known that a large amount of hypochlorous acid having a high bactericidal effect exists at pH 2-7. Therefore, when it is desired to further increase the amount of hypochlorous acid present in the sterilized water, an appropriate amount of acid such as hydrochloric acid is added to the supplied chlorine ion-containing water and / or the generated sterilized water, and the pH of the sterilized water is set to 2 to 2. 7 is preferable.

  The produced sterilizing water is taken out of the electrolytic cell 58 through the sterilizing water supply pipe 5. At this time, the sterilized water taken out may be diluted with tap water, deionized water, or the like as necessary.

  When the electrolysis of chlorine ion-containing water is continued, scale components such as alkaline earth metal ions such as calcium ions and magnesium ions and ionic silica contained in the chlorine ion-containing water are attracted to the cathode by electrophoresis. These scale components are deposited as scale on the surface of the cathode or in the vicinity of the surface by various mechanisms such as reduction on the cathode surface and reaching a saturation concentration due to high pH in the vicinity of the cathode. A part of such scale adheres to the cathode surface and hinders electrolysis.

  When the amount of scale attached to the cathode surface reaches a certain level, the sterilizing water contained in the electrolytic bath 58 is discharged from the sterilizing water supply pipe 5 or the drain 60. Next, tap water, deionized water, or the like is supplied as washing water to the electrolytic bath 58 so that the washing water is connected between the cathode 52 and the third electrode 54 around the cathode 52 and the third electrode 54. Place. Thereafter, as shown in FIG. 4b, when a positive voltage is applied to the cathode side and a negative voltage is applied to the third electrode side by the DC power source 56, an oxide film is generated on the cathode surface, and the resistance value of the electrode surface increases. Since the oxide film peels off due to dielectric breakdown when a certain voltage is applied, the scale attached to the cathode surface is peeled off together with the oxide film to be peeled off and removed from the cathode surface. At this time, the DC voltage applied between the cathode 52 and the third electrode 54 is generally about 15 V or more and about 25 V or less.

  The peeled scale and oxide film are allowed to settle at the bottom of the electrolytic cell 58, and then the drain valve 62 is opened and discharged from the drain 60 together with the cleaning water. In this way, by removing the scale attached to the cathode surface, the cathode surface can be regenerated to a state suitable for electrolysis. Thereafter, sterilized water can be produced by supplying chlorine ion-containing water again to the electrolytic bath 58 and electrolyzing it.

  In the step of removing the scale from the cathode surface, the scale may adhere to the third electrode 54 as in the case of the cathode during the manufacture of sterilizing water. At this time, similarly to the step of removing the scale from the cathode 52, washing water is supplied to the electrolytic bath 58, and conduction between the cathode 52 and the third electrode 54 is made around the cathode 52 and the third electrode 54. After the cleaning water is disposed as shown in FIG. 4c, the DC power source 56 applies a voltage having the opposite polarity to that of FIG. 4b, that is, a positive voltage is applied to the third electrode side and a negative voltage is applied to the cathode side. Then, the scale can be removed from the surface of the third electrode by the same mechanism. This step may be performed together with the step of removing the scale from the cathode surface, that is, without changing the washing water used in removing the scale from the cathode surface. The scale can be discharged through the drain 60 as described above.

  FIG. 5 is a schematic view of a sterilizing water production apparatus according to another embodiment of the present invention. In this embodiment, a diaphragm 70 is provided to separate the anode 50 from the cathode 52 and the third electrode 54, and an anode chamber 72 and a cathode chamber 74 are defined inside the electrolytic cell 58. A known ion exchange membrane can be used as the diaphragm 70. In this embodiment, strongly acidic sterilizing water is generated in the anode chamber 72, and at the same time, strong alkaline water is generated in the cathode chamber 74. The strongly acidic sterilizing water in the anode chamber 72 can be taken out from the sterilizing water supply pipe 5. The strong alkaline water in the cathode chamber 74 can be taken out from a strong alkaline water discharge pipe (not shown) or a drain 60 provided separately. In this embodiment, the scale removal from the cathode surface and the scale removal from the third electrode surface can be performed by the procedure described above.

  In the sterilizing water production apparatus, a titanium electrode coated with a noble metal, an oxide thereof or a combination thereof is used only for the anode, and a titanium electrode is used for the cathode and the third electrode. When the scale adheres to the cathode surface, the third electrode and the cathode are energized to cause dielectric breakdown of the oxide film on the cathode surface, and the scale attached to the cathode surface can be peeled off together with the broken oxide film. .

  Therefore, if the sterilizing water production apparatus is used, the cathode surface can be maintained in a state suitable for electrolysis without using pure water or a water softener, and hypochlorous acid can be efficiently generated. it can. Further, since it is not necessary to apply electrical stress to the anode when removing the scale from the cathode surface, the anode can be used stably for a long period of time. In addition, a titanium electrode coated with an expensive noble metal, its oxide, or a combination thereof may be used only for the anode, and the cathode and the third electrode can be made into an inexpensive titanium electrode. A manufacturing apparatus can be provided. Furthermore, since periodic electrode replacement associated with electrode consumption need only be performed for the cathode and the third electrode using inexpensive titanium electrodes, the running cost when performing long-term electrolysis can also be reduced.

(2) Second Embodiment FIG. 6 is a schematic view showing a part of the configuration of the second embodiment of the sterilizing water supply system with a non-contact switching function of the present invention. In the second embodiment, the integrated pipe 7 has an electric three-way valve 21 connected to the ends of the sterilizing water supply pipe 5 and the water supply pipe 6 at one end, and the electric three-way valve 21 is controlled by the control unit 4. To be controlled. Other configurations are the same as those of the first embodiment.

  The electric three-way valve 21 is controlled by the control unit 4 as follows. When the “sterilizing water” indicator lamp 15 a is lit, a signal for opening the sterilizing water supply pipe 5 side of the electric three-way valve 21 is sent from the control unit 4. When the “tap water” indicator lamp 15 b is lit, a signal for opening the water supply pipe 6 side of the electric three-way valve 21 is sent from the control unit 4. When the “mixed water” indicator lamp 15c is lit, the control unit 4 sends a signal to open both the sterilizing water supply pipe 5 side and the water supply pipe 6 side of the electric three-way valve 21 at an appropriate opening degree. . The mixing ratio of the sterilizing water and tap water in the mixed water can be adjusted by the opening degree of the electric three-way valve 21. The opening degree of the electric three-way valve 21 may be set in advance in the control unit 4, or may be adjusted manually or automatically based on the measured numerical value by attaching a residual chlorine concentration meter to the integrated pipe 7. According to the second embodiment, the occupied space of the piping can be further reduced.

(3) Third Embodiment FIG. 7 is a schematic diagram showing the configuration of the third embodiment of the sterilizing water supply system with a non-contact switching function of the present invention. In the sterilizing water supply system according to the third embodiment, the sensor unit 32 further includes a water discharge method indicator selected from a continuous mode or an automatic mode including one or more water discharge patterns. In FIG. 7, 35a is a continuous mode indicator lamp, 35b, 35c and 35d are fluid type indicator lamps (sterilized water, tap water, mixed water), 36a is an automatic mode indicator lamp, and 36b, 36c and 36d are water discharge patterns. 1-3. The control unit 4 selects the water discharge method based on the detection signal of the optical sensor 34 of the sensor unit 32, further selects the fluid type when the water discharge method is the continuous mode, and further selects the water discharge pattern when the water discharge method is the automatic mode. select. An on / off switch 33 having an optical sensor 37 is further provided. Reference numerals 38a and 38b in FIG. 7 denote an on-indicator lamp and an off-indicator lamp, respectively. In response to a signal from the on / off switch 33, the control unit 4 is configured to start or stop the supply of the fluid of the selected fluid type to the integrated pipe 7 when the selected water discharge method is the continuous mode. When the selected water discharge method is the automatic mode, the open / close state of the electric three-way valve 21 is controlled according to the selected water discharge pattern. As in the first embodiment, instead of the electric three-way valve 21, an electric two-way valve may be provided in each of the sterilizing water supply pipe 5 and the water supply pipe 6 to control the open / close state thereof.

  In FIG. 7, the integrated pipe 7 is directly connected to the faucet 12 provided in the sink 31 without going through the automatic water supply unit. On the other hand, an on / off switch 33 having an optical sensor 37 is connected to the control unit 4. The on / off switch 33 sends a signal for controlling the open / close state of the motor-operated valve selected by the motor-operated valve operating circuit of the control unit 4 to the control unit 4 based on the detection signal from the sensor unit 32. Other configurations are the same as those of the first embodiment.

  When the optical sensor 34 of the sensor unit 32 is manually shut off for a certain time, the indicator lamps 35a and 36a are alternately switched and lighted. When the “continuous mode” indicator light 35a is lit, when the light sensor 34 is again turned off by hand, the water discharge method selection circuit (not shown) of the control unit 4 selects “continuous mode” and the indicator light 35a will be in a lighting state. At the same time, the indicator lamps 35b, 35c, and 35d indicating the fluid type are alternately switched on. When the “sterilizing water” indicator lamp 35b is lit, if the optical sensor 34 of the sensor unit 32 is again shut off by hand, the motor operated valve operating circuit of the control unit 4 causes the sterilizing water supply piping 5 side of the electric three-way valve 21 to Select. Next, when the optical sensor 37 of the on / off switch 33 is manually cut off, the on indicator lamp 38a is turned on, and at the same time, a control signal is sent from the on / off switch 33 to the control unit 4, and the sterilizing water supply piping 5 side of the electric three-way valve 21 is connected. The sterilizing water generated by the sterilizing water production apparatus 2 is opened and discharged from the faucet 12 through the integrated pipe 7. The water discharge continues again until the optical sensor 37 is blocked by hand. When the optical sensor 37 is blocked by hand, the off indicator lamp 38b is turned on to stop water. On the other hand, even after the optical sensor 37 is blocked by hand to stop the water, the “sterilizing water” indicator lamp 35b remains lit.

  Next, when tap water is desired to be discharged, the light sensor 34 of the sensor unit 32 is manually shut off so that the indicator lamps 35b, 35c and 35d are alternately switched to light up, and the display of “tap water” is displayed. When the light sensor 34 of the sensor unit 32 is again shut off by hand when the lamp 35c is lit, the motor operated valve operating circuit of the control unit 4 selects the water supply pipe 6 side of the motor operated three-way valve 21. Next, when the optical sensor 37 of the on / off switch 33 is manually cut off, the on indicator lamp 38a is turned on and at the same time a control signal is sent to the control unit 4, the water supply pipe 6 side of the electric three-way valve 21 is opened, and tap water is supplied to the tap 12 The water passes through the integrated pipe 7 and is discharged. The water discharge continues again until the optical sensor 37 is blocked by hand. When the optical sensor 37 is blocked by hand, the off indicator lamp 38b is turned on to stop water. On the other hand, even after the optical sensor 37 is blocked by hand to stop the water, the “tap water” indicator light 35c remains lit.

  Next, when it is desired to discharge the mixed water, the light sensor 34 of the sensor unit 32 is manually shut off so that the indicator lamps 35b, 35c, 35d are alternately switched to light up, and “mixed water” is displayed. When the light sensor 34 of the sensor unit 32 is again shut off by hand when the lamp 35d is lit, the motor operated valve operation circuit of the control unit 4 is connected to the sterilizing water supply pipe 5 side and the water supply pipe 6 side of the electric three-way valve 21. Select both. Next, when the optical sensor 37 of the on / off switch 33 is shut off by hand, the on indicator lamp 38a is turned on and at the same time a control signal is sent to the control unit 4, and the sterilizing water pipe 5 side and the water supply pipe 6 side of the electric three-way valve 21 are sent. Both are opened at an appropriate opening, and the mixed water is discharged from the tap 12 through the integrated pipe 7. The mixing ratio of the sterilizing water and tap water in the mixed water can be adjusted by the opening degree of the electric three-way valve 21. The opening degree of the electric three-way valve 21 may be set in advance in the control unit 4, or may be adjusted manually or automatically based on the measured numerical value by attaching a residual chlorine concentration meter to the integrated pipe 7. The water discharge continues again until the optical sensor 37 is blocked by hand. When the optical sensor 37 is blocked by hand, the off indicator lamp 38b is turned on to stop water. On the other hand, even after the optical sensor 37 is blocked by hand to stop the water, the “mixed water” indicator light 35d remains lit.

  When the optical sensor 34 of the sensor unit 32 is again shut off by hand for a certain period of time, the indicator lamps 35a and 36a are alternately switched and lit. When the “automatic mode” indicator light 36a is turned on, if the light sensor 34 is again turned off by hand, the water discharge method selection circuit (not shown) of the control unit 4 selects “automatic mode” and “automatic” The “mode” indicator light 36a is turned on. At the same time, the indicator lights 36b, 36c, and 36d indicating the water discharge pattern are alternately switched on. When the “pattern 1” indicator light 36b is lit, if the optical sensor 34 of the sensor unit 32 is again manually shut off, a water discharge method selection circuit (not shown) of the control unit 4 is preset as a water discharge condition. Select the pattern 1 flooding method. When the “pattern 1” indicator light 36b is lit, if the optical sensor 37 of the on / off switch 33 is blocked by hand, a control signal is sent from the on / off switch 33 to the control unit 4, and the electric three-way operation is performed according to the pattern 1 water discharge method. The valve 21 is controlled, and the pattern 1 is discharged from the tap 12. Regarding the switching to the patterns 2 and 3 and the flooding of these patterns, the light sensors 34 of the sensor unit 32 were shut off by hand, so that the indicator lamps 36b, 36c, 36d were alternately switched and turned on. Thereafter, the same operation can be performed.

  After the water stoppage, the last used water discharge method, fluid type, and water discharge pattern indicator lamps may keep the lighting state. When there is no use for a certain period of time, the indicator lamp may return to the initial state (for example, the off state).

  According to the sterilization water supply system with the non-contact switching function of the third embodiment, how to control the electric three-way valve 21 connected to the sterilization water supply pipe 5, the water supply pipe 6, and the integrated pipe 7 is a sensor unit. Based on the detection signal from 32 and the signal from the on / off switch 33, the open / close state of the electric three-way valve 21 is controlled in the selected control mode, and the water discharge is executed / stopped. Therefore, in continuous mode, the selected type of fluid can be continuously discharged. On the other hand, in automatic mode, water is discharged in a preset discharge pattern. It can be performed.

  In the third embodiment, the control unit 4 may register the state of water discharge and water stop executed in the continuous mode as the water discharge pattern of the automatic mode, and the water discharge pattern may be selected after registration. Thereby, when a washing | cleaning procedure is changed, a water discharge pattern can be changed simply and efficiently.

  Moreover, in the sterilizing water supply system with a non-contact switching function of the present invention, the control unit 4 may have a display device that records the execution status of water discharge and water stop and displays the execution status. Further, the control unit 4 may have a warning device that sets a water discharge time for the sterilizing water and issues a warning when water discharge that is less than the set water discharge time is executed. By these, sanitary hand washing or washing can be performed reliably.

  The pipe material is preferably a resin pipe with high chemical resistance such as a hard vinyl chloride lined steel pipe or a polypropylene pipe, which is often used for general water supply pipes. The electric two-way valve or electric three-way valve provided or connected to the sterilizing water supply pipe 5 desirably has a leak prevention mechanism such as a bellows valve. Leakage detection means may be provided in the sterilizing water supply pipe 5.

  In order to balance the supply pressure of the sterilizing water supply pipe 5 and the water supply pipe 6, a pressure adjustment valve may be installed as necessary. In order to prevent the backflow of the sterilizing water to the water supply pipe 6, a backflow prevention valve or a vacuum preventer may be installed as necessary.

  The above embodiments are described only for the purpose of illustrating the present invention, and the present invention is not limited thereto. The scope of the present invention is intended to cover modifications, expansions, modifications, and substitutions of the embodiments described herein that will be apparent to those skilled in the art. For example, when selecting a fluid type, a water discharge method, and a water discharge pattern, the operation time for shutting off the optical sensor of the sensor unit, the number of times of interruption, etc. It will be apparent to those skilled in the art that various modifications can be made as long as the operation targeted by the present invention can be realized.

  INDUSTRIAL APPLICABILITY The present invention can be used in washing facilities such as a wash basin and a sink that use sterilized water, tap water, and mixed water thereof.

DESCRIPTION OF SYMBOLS 1 Washing unit 2 Sterilization water manufacturing apparatus 3 Sensor unit 4 Control unit 5 Sterilization water supply piping 6 Water supply piping 7 Integrated piping 8a, 8b Electric two-way valve 11 Basin 12 Faucet 13 Automatic water supply unit 14 Optical sensor 15a, 15b, 15c Fluid Type indicator lamp 21 Electric three-way valve 31 Sink stand 32 Sensor unit 33 On-off switch 34 Optical sensor 35a Continuous mode indicator lamp 35b, 35c, 35d Fluid type indicator lamp 36a Automatic mode indicator lamp 36b, 36c, 36d Water discharge pattern indicator lamp 37 Optical sensor 38a ON indicator lamp 38b OFF indicator lamp 50 Anode 52 Cathode 54 Third electrode 56 DC power supply 58 Electrolyzer 60 Drain 62 Drain valve 64 Water supply pipe 70 Separator 72 Anode chamber 74 Cathode chamber

Claims (8)

Sterilizing water production equipment,
A sterilizing water supply pipe connected to the sterilizing water manufacturing apparatus and having a first electric two-way valve for supplying sterilizing water generated by the sterilizing water manufacturing apparatus;
A water supply pipe for supplying tap water having a second electric two-way valve;
An integrated pipe that integrates the ends of the sterilizing water supply pipe and the water supply pipe at one end, and supplies sterilizing water, tap water, or a mixed water thereof from the other end,
A sensor unit having an optical sensor and an indicator lamp of a fluid type selected by a detection signal of the optical sensor; and connected between the sensor unit and the first and second electric two-way valves, A fluid type is selected from sterilizing water, tap water, or a mixed water thereof according to a detection signal of an optical sensor of the unit, and the first and second fluids are supplied to the integrated pipe. A control unit that controls the open / closed state of the electric two-way valve
Equipped with a,
The sterilizing water production apparatus has an anode, a cathode, a third electrode, and a DC power source capable of applying a DC voltage between the cathode and the third electrode, and the anode is a noble metal, an oxide thereof, or a combination thereof The cathode and the third electrode are made of titanium, and the DC power source applies a positive voltage to the cathode side and a negative voltage to the third electrode side, The oxide film formed on the cathode surface peels off due to dielectric breakdown, and the DC voltage is applied so that the scale attached to the cathode surface peels off along with the peeled oxide film and is removed from the cathode surface. that is configured to be applied, the sterilizing water supply system with a non-contact switching function. Sterilizing water production equipment,
A sterilizing water supply pipe connected to the sterilizing water manufacturing apparatus for supplying the sterilizing water generated by the sterilizing water manufacturing apparatus;
Water supply piping for supplying tap water,
An integrated three-way valve that has an electric three-way valve connected to the end of the sterilizing water supply pipe and the water supply pipe at one end, and supplies sterilizing water, tap water, or a mixed water thereof from the other end;
A sensor unit having an optical sensor and an indicator lamp of a fluid type selected by a detection signal of the optical sensor, and a detection signal of the optical sensor of the sensor unit connected between the sensor unit and the electric three-way valve By selecting a fluid type from sterilizing water, tap water or a mixed water thereof, a control unit for controlling the open / closed state of the electric three-way valve so that the fluid of the selected fluid type is supplied to the integrated pipe,
Equipped with a,
The sterilizing water production apparatus has an anode, a cathode, a third electrode, and a DC power source capable of applying a DC voltage between the cathode and the third electrode, and the anode is a noble metal, an oxide thereof, or a combination thereof The cathode and the third electrode are made of titanium, and the DC power source applies a positive voltage to the cathode side and a negative voltage to the third electrode side, The oxide film formed on the cathode surface peels off due to dielectric breakdown, and the DC voltage is applied so that the scale attached to the cathode surface peels off along with the peeled oxide film and is removed from the cathode surface. that is configured to be applied, the sterilizing water supply system with a non-contact switching function. Sterilizing water production equipment,
A sterilizing water supply pipe connected to the sterilizing water manufacturing apparatus and having a first electric two-way valve for supplying sterilizing water generated by the sterilizing water manufacturing apparatus;
A water supply pipe for supplying tap water having a second electric two-way valve;
An integrated pipe that integrates the ends of the sterilizing water supply pipe and the water supply pipe at one end, and supplies sterilizing water, tap water, or a mixed water thereof from the other end,
A sensor unit having an optical sensor and an indicator lamp of a fluid type selected by a detection signal of the optical sensor; and
It is connected between the sensor unit and the first and second electric two-way valves, and according to the detection signal of the optical sensor of the sensor unit, the fluid type is selected from sterilized water, tap water or mixed water thereof, A control unit for controlling the open / closed state of the first and second electric two-way valves so that the fluid of the selected fluid type is supplied to the integrated pipe;
With
The sensor unit further includes a water discharge method indicator selected from a continuous mode or an automatic mode including one or more water discharge patterns,
The control unit selects a water discharge method according to a detection signal of an optical sensor of the sensor unit, further selects a fluid type when the water discharge method is a continuous mode, and a water discharge pattern when the water discharge method is an automatic mode. Select further,
The sterilizing water supply system further includes an on / off switch having an optical sensor,
The control unit is configured to start or stop the supply of the fluid of the selected fluid type to the integrated pipe when the selected water discharge method is in a continuous mode according to a signal from the on / off switch. And the open / close state of the second electric two-way valve is controlled, and when the selected water discharge method is the automatic mode, the open / close state of the first and second electric two-way valves is controlled according to the selected water discharge pattern. Sterilizing water supply system with non-contact switching function. Sterilizing water production equipment,
A sterilizing water supply pipe connected to the sterilizing water manufacturing apparatus for supplying the sterilizing water generated by the sterilizing water manufacturing apparatus;
Water supply piping for supplying tap water,
An integrated three-way valve that has an electric three-way valve connected to the end of the sterilizing water supply pipe and the water supply pipe at one end, and supplies sterilizing water, tap water, or a mixed water thereof from the other end;
A sensor unit having an optical sensor and an indicator lamp of a fluid type selected by a detection signal of the optical sensor; and
The fluid type is connected between the sensor unit and the electric three-way valve, and a fluid type is selected from sterilized water, tap water or a mixed water thereof according to a detection signal of an optical sensor of the sensor unit. A control unit for controlling the open / close state of the electric three-way valve so that fluid is supplied to the integrated pipe;
With
The sensor unit further includes a water discharge method indicator selected from a continuous mode or an automatic mode including one or more water discharge patterns,
The control unit selects a water discharge method according to a detection signal of an optical sensor of the sensor unit, further selects a fluid type when the water discharge method is a continuous mode, and a water discharge pattern when the water discharge method is an automatic mode. Select further,
The sterilizing water supply system further includes an on / off switch having an optical sensor,
The control unit is configured to start or stop the supply of the fluid of the selected fluid type to the integrated pipe when the selected water discharge method is a continuous mode according to a signal from the on / off switch. A sterilizing water supply system with a non-contact switching function that controls an open / close state of a valve and controls an open / close state of the electric three-way valve according to the selected water discharge pattern when the selected water discharge method is an automatic mode. The non-control unit according to any one of claims 3 and 4, wherein the control unit registers the state of water discharge and water stop executed in the continuous mode as a water discharge pattern of an automatic mode, and the water discharge pattern can be selected after registration. Bactericidal water supply system with contact switching function. The sterilizing water production apparatus has an anode, a cathode, a third electrode, and a DC power source capable of applying a DC voltage between the cathode and the third electrode, and the anode is a noble metal, an oxide thereof, or a combination thereof The cathode and the third electrode are made of titanium , and the DC power source applies a positive voltage to the cathode side and a negative voltage to the third electrode side, The oxide film formed on the cathode surface peels off due to dielectric breakdown, and the DC voltage is applied so that the scale attached to the cathode surface peels off along with the peeled oxide film and is removed from the cathode surface. that is configured to be applied, the sterilizing water supply system with a non-contact switching function according to any one of claims 3-5. 7. The sterilizing water production apparatus according to claim 1, further comprising a polarity switching device that reverses a polarity of a DC voltage applied between the cathode and the third electrode. Sterilized water supply system with non-contact switching function. The control unit has a display device that records the execution status of water discharge and water stop and displays the execution status;
It said control unit sets a flood time of sterilizing water, having a warning device for issuing an alarm when the floodwaters less than the set flood time has been executed, according to any one of claims 1-7 Sterilization water supply system with non-contact switching function.

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