JP2000126769A - Electrolytic water making apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the generation of rust in an electrolytic water making apparatus caused by the outflow and diffusion of chlorine volatilized from acidic water in an acidic water tank while making the constitution of the overflow pipe of the apparatus compact. SOLUTION: In an electrolytic water making apparatus, water to be electrolyzed obtained by mixing raw water such as tap water and conc. salt water to raw water such as tap water from a conc. salt water tank 61 is electrolyzed in a diaphragm electrolytic cell to form alkaline water and acidic water and alkaline water is led out of the electrolytic cell to be stored in an alkaline water tank 70 while acidic water is led out of the electrolytic cell to be stored in an acidic water tank 80. In this case the overflow pipes 131, 132, 133 respectively provided to the conc. salt water tank 61, the alkaline water tank 70 and the acidic water tank 80 are allowed to communicate with each other to be connected and unified (139) and a trap S1 is provided to the overflow pipe 131 provided in the conc. salt water tank 61.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing alkaline water and acidic water by electrolyzing water to be electrolyzed obtained by mixing raw salt water such as tap water with concentrated salt water from a concentrated salt water tank in an electrolytic cell having a diaphragm. ,
The present invention relates to an electrolyzed water generation device in which alkaline water is derived from an electrolytic cell and stored in an alkaline water tank, and acidic water is derived from the electrolytic cell and stored in an acidic water tank.

[0002]

2. Description of the Related Art This type of electrolyzed water generating apparatus is disclosed, for example, in Japanese Patent Application Laid-Open No. 7-241563, in which an overflow pipe is provided in each of a concentrated salt water tank, an alkaline water tank and an acidic water tank. Excess water in each tank is overflow-discharged through the overflow pipe.

[0003]

In the above-mentioned conventional electrolyzed water generating apparatus, since overflow pipes are provided in each tank and the pipes are complicated, the overflow pipes are connected and connected to solve this problem. Although the piping is simplified when unitized, chlorine volatilized from the acidic water in the acidic water tank flows into the overflow pipes connected to each other, and in particular, flows into the overflow pipe provided in the concentrated salt water tank. When the chlorine reaches the concentrated salt water tank, there is a possibility that the chlorine diffuses inside the device and causes rust inside the device. This is because although the lids of the alkaline water tank and the acidic water tank generally have a structure that maintains airtightness, the lids of the concentrated salt water tank do not generally have a structure that maintains airtightness. to cause.

[0004]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problem, and the electrolyzed water obtained by mixing the concentrated water from a concentrated salt water tank with raw water such as tap water is used for forming a diaphragm. Electrolysis is performed in an electrolytic cell to generate alkaline water and acidic water, and the alkaline water is derived from the electrolytic bath and stored in an alkaline water tank, and the acidic water is derived from the electrolytic bath and stored in an acidic water tank. In the electrolyzed water generating apparatus described above, the overflow pipes respectively provided in the concentrated salt water tank, the alkaline water tank and the acidic water tank are connected to be unified, and trapped in the overflow pipe provided in the concentrated salt water tank. It is characterized by having provided. In this case, it is desirable to provide a water guide pipe for guiding alkaline water and acidic water drawn out of the electrolytic cell to the trap.

[0005]

In the apparatus for producing electrolyzed water according to the present invention, the overflow pipes respectively provided in the concentrated salt water tank, the alkaline water tank and the acidic water tank are connected to each other so as to be unified, and provided in the concentrated salt water tank. A trap was provided in the overflow pipe, and while the piping of the overflow pipe was simplified and downsized, the water trapped in the trap blocked the ventilation, and chlorine vaporized from the acidic water in the acidic water tank. Can be prevented from flowing into the concentrated salt water tank. Therefore, chlorine does not diffuse into the device through the concentrated salt water tank, and rust can be prevented from being generated inside the device.

[0006] In the practice of the present invention, if a water conduit is provided for guiding alkaline water and acidic water drawn out of the electrolytic bath to a trap, the alkaline water and acidic water are guided from the electrolytic bath to each tank. When stored, the alkaline water and the acidic water can be guided to the trap through the water guide pipe, and the ventilation can be properly shut off by the trap, so that the above-described operation and effect can be accurately obtained.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. 1 to 3 show an electrolyzed water generating apparatus according to the present invention. The electrolyzed water generating apparatus includes a base 10, an electrolyzed water generating main body A detachably mounted on the base 10, and an alkaline water tank 70. And an acidic water tank 80.

The base 10 includes a flat base 11 having a rectangular shape in plan view and four legs 12 mounted on the bottom of the base 11. A pair of front and rear brackets 14 are provided, and a pair of front and rear brackets 15 are provided on the right upper surface.

The electrolyzed water generating body A is formed by assembling an electrolytic cell 30 having a diaphragm, an electric box 40 for accommodating electric parts, a concentrated salt water supply device 60, and the like in a vertically long rectangular parallelepiped case 20. The base 20 is detachably attached to the center of the base 11 using four bolts 13 that are attached to and detached from below the base 11 on the bottom surface of the case 20.

The case 20 has a right-opening door 21 on the front.
The opening and closing door 21 includes a door main body 21 a assembled to the case 20 via a hinge 22, and a door main body 2.
The mounting plate 21b includes a mounting plate 21b mounted on an opening provided at the upper center of the mounting plate 1a, and a salt inlet door 21c mounted on a salt inlet provided at a lower center of the mounting plate 21b.

The electrolyzer 30 is a well-known device that electrolyzes dilute salt water to produce alkaline water and acidic water. The electrolyzer 30 is disposed substantially at the center of the case 20. The two electrolysis chambers 33 and 34 are formed by the diaphragm 32.
Is divided into Each of the electrolysis chambers 33 and 34 is provided with electrodes 35 and 36 connected to a DC power supply (not shown and housed in an electrical box 40), respectively, and a DC power supply to both electrodes 35 and 36 is provided. The application and stop of the DC voltage from and the switching of the positive / negative electrode are controlled by a control device (not shown, housed in the electrical box 40). In addition, in the tank body 31, each of the electrolysis chambers 33, 3 is provided.
4, supply ports 31a and 31b and outlet ports 31c and 3
1d are provided at the lower part and the upper part of the tank main body 31, respectively.
Branch pipes 101a and 101b are respectively connected, and the outlet pipes 10c and 31d are connected to the outlet pipes 10 of the electrolytic water.
2 and 103 are respectively connected.

The supply pipe 101 for dilute salt water is branched at an intermediate portion into branch pipes 101a and 101b.
101b is connected to each of the supply ports 31a and 31b, and the other end is connected to a supply pipe 104 of tap water. The supply pipe 104 for tap water has one end connected to a water pipe (not shown) and the other end connected to the supply pipe 101 for dilute salt water and the supply pipe 62 for concentrated salt water. I have.

The outlet pipes 102, 103 for the electrolyzed water have one ends connected to the outlets 31c, 31d, respectively, and the other ends connected to the inlet pipes 105, 10 via the flow path switching valve 50.
6 for extracting the electrolyzed water generated in each of the electrolysis chambers 33 and 34.

One end of each of the introduction pipes 105 and 106 is connected to a supply port 71a provided in the tank body 71 of the alkaline water tank 70 and a supply port 81a provided in the tank body 81 of the acidic water tank 80, respectively. The other end is connected to the electrolytic water outlet pipes 102 and 103 via the flow path switching valve 50, and the alkaline water discharged through the electrolytic water outlet pipes 102 and 103 and the flow path switching valve 50 is supplied to the alkaline water tank 70. And the acidic water is introduced into the acidic water tank 80.

The flow path switching valve 50 is a four-port two-position switching valve that withstands acid and alkali, and its position is switched by driving an electric motor (not shown) based on a signal from a control device. It has become.

The concentrated salt water supply device 60 includes a concentrated salt water tank 61.
And a concentrated salt water supply pipe 62 connected to the tank 61;
A supply pump 63 is provided in the supply pipe 62. The concentrated salt water tank 61 is provided with salt (salt input door 2) inside.
1c is opened and the tap water (supplied as appropriate from the salt inlet) and tap water (supplied through the tap water supply pipe 107) are accommodated. The salt water is supplied to a supply pipe 62. One end of the concentrated salt water supply pipe 62 has a concentrated salt water tank 61.
And the other end is connected to a supply pipe 104 for tap water and a supply pipe 101 for dilute salt water, and the supply pump 6
By the operation of 3 (controlled by the control device), the concentrated salt water in the concentrated salt water tank 61 is supplied to the supply pipe 104 of the tap water and the supply pipe 101 of the dilute salt water, and the concentrated salt water and the tap water are mixed. A dilute salt water of a predetermined concentration flows through the dilute salt water supply pipe 101.

The alkaline water tank 70 is for storing the alkaline water generated in the electrolytic cell 30. A supply port 71a is provided at the upper right side of the tank body 71, and a spout 71b is provided at the lower center. A supply pipe 71 is connected to the supply port 71a, and a discharge pipe 111 is connected to the spout 71b. The supply pipe 71a is engaged with a pair of front and rear brackets 14 provided on the base 11 from above. And is fixed to the base 11 as shown in FIG.
And is fixed to the case 20 by using.

The outlet pipe 111 is connected to the alkaline water tank 70.
To derive the alkaline water stored in the
One end is connected to the outlet 71b, and the other end is connected to the inlet of the outlet pump P1. The operation of the dispensing pump P1 is controlled by a control device, and the dispensing pump P1 is driven by a dispensing operation of a dispensing switch (not shown) installed at a place of use, and is stopped by a stop operation. A discharge pipe 112 is connected to a discharge port of the case 20.

The discharge pipe 112 has one end connected to the discharge port of the discharge pump P1 and the other end opened at a location where alkaline water is used, and is provided with an electromagnetic discharge valve V1 and an air chamber AC1. Is interposed. Discharge valve V1
The operation of which is controlled by a control device, is interposed at the other end opening portion of the injection pipe 112, and is opened by an injection operation of an injection switch (not shown) and closed by a stop operation. Has become.

For this reason, the discharging pump P1 is driven by the discharging operation of the discharging switch and the discharging valve V1 is opened to discharge the alkaline water in the alkaline water tank 70, and to stop the discharging switch. The operation stops the dispensing pump P1 and closes the dispensing valve V1,
The discharge of the alkaline water in the alkaline water tank 70 is stopped.

The air chamber AC1 releases pressure generated between the discharge pump P1 and the discharge valve V1 when the discharge pump P1 is stopped and the discharge valve V1 is closed by a stop operation of the discharge switch. It has the same structure as a general accumulator, and is interposed in the case 20 between the discharge pump P1 and the discharge valve V1.

In addition, an intake pipe 113 is connected in the middle of the discharge pipe 112. The intake pipe 113 is
It is for taking in alkaline water for checking the pH value, and is provided with a manual water intake valve V3, which is opened above the concentrated salt water tank 61. For this reason, the alkaline water can be taken in the concentrated salt water tank 61, and of course, the intake pipe 113 is closed after the intake valve V3 is closed.
The alkaline water dropped from the tip does not fall into the concentrated salt water tank 61 and does not leak into the case 20.
Rust of components such as the pump and the pump disposed in the case 20 can be prevented.

On the other hand, the acidic water tank 80 is for storing the acidic water generated in the electrolytic cell 30. The supply port 81a is provided on the upper left side of the tank body 81, and the supply port 81a is provided in the lower center. An outlet 81b is provided, a supply port 81a is connected to an inlet pipe 106, and a spout port 81b is connected to an outlet pipe 121.
2 and is fixed to the base 11 by being engaged with a pair of front and rear brackets 15 provided on the base 20 and, as shown in FIG. It is supposed to be. The pipes and the like connected to the acidic water tank 80 have the same configuration as the pipes and the like connected to the alkaline water tank 70.

In this embodiment, as shown in FIGS. 1 and 3, the concentrated salt water tank 61, the alkaline water tank 70 and the acidic water tank 80 are provided with overflow pipes 131, 132 and 133, respectively.
The water guide pipes 136, 137 are connected to the outlet pipes 102, 103, and the overflow pipes 131, 132, 133 are
It is connected to the drain pipe 139 that opens to the drain groove H provided at the installation location of the device, and is connected to the drain pipe 136.
The 137 is connected to the water main pipe 138 by flow collection.

The overflow pipe 131 is for discharging the excess concentrated salt water in the concentrated salt water tank 61 in an overflow manner. A U-shaped trap S1 is provided in the middle of the overflow pipe 131, and a downstream portion of the trap S1 is provided downstream. A check valve V5 for preventing the flow from the side to the upstream side is interposed.

The overflow pipe 132 is for discharging excess alkaline water in the alkaline water tank 70 in an overflow manner, and a drain pipe 134 provided with a manual discharge valve V6 is connected in the middle thereof. On the other hand, the overflow pipe 133 is for discharging excess acidic water in the acidic water tank 80 in an overflow manner, and a drain pipe 135 provided with a manual discharge valve V7 is connected in the middle thereof.

The water conduits 136 and 137 and the water conduit 138
Is for guiding alkaline water and acidic water generated and led out in each of the electrolysis chambers 33 and 34 to the trap S1.
The overflow pipe 131 is connected upstream of the trap S1. The water main pipe 138 is provided with a normally closed water guide valve V8 (controlled by a control device) to start energization of both electrodes 35 and 36 (both the electrolysis chambers 3).
The alkaline water and the acidic water are opened for a predetermined time from the time when the alkaline water and the acidic water start to be discharged from the third and the third water).
6, 137 and the water main pipe 138 are guided to the trap S1.

The discharge pipe 139 is provided for the overflow pipe 13.
This is for collecting and discharging concentrated salt water, alkaline water and acidic water overflowed through 1, 132, 133, alkaline water discharged from the drain pipe 134, and acidic water discharged from the drain pipe 135. A trap S2 is provided on the way.

In the embodiment constructed as described above, the overflow pipes 13 provided in the concentrated salt water tank 61, the alkaline water tank 70 and the acidic water tank 80, respectively.
1, 132, and 133 are connected and unitized (discharge pipe 13
9) In addition, since the trap S1 is provided in the overflow pipe 131 provided in the concentrated salt water tank 61, the ventilation by the water stored in the trap S1 in the trap S1 is performed while simplifying and compacting the pipe of the overflow pipe. It is possible to prevent the chlorine which is shut off and volatilized from the acidic water in the acidic water tank 80 from flowing into the concentrated salt water tank 61. Therefore, chlorine does not diffuse into the device through the concentrated salt water tank 61, and rust can be prevented from being generated inside the device. Also, the discharge pipe 139
Since the trap S2 is provided in the trap, the ventilation stored in the trap S2 is blocked by the water stored in the trap S2, and the chlorine volatilized from the acidic water in the acidic water tank 80 can be prevented from being discharged out of the apparatus. Therefore, it is possible to prevent rust from being generated in equipment near the device.

Even if the above-mentioned volatile chlorine flows into the alkaline water tank 70, the chlorine contacts the alkaline water to form chlorine water, and this chlorine water is neutralized by reacting with the alkaline water. Therefore, no problem occurs in the alkaline water tank 70 due to the flow of chlorine.

In the present embodiment, each outlet pipe 1
02 and 103 are connected to the water main pipes 136 and 137, respectively, and these are connected to the water main pipes 138 to form the same water main pipes 13 and 137.
8 is connected to the upstream side of the trap S1 of the thick overflow pipe 131, so that when the alkaline water and the acidic water are guided from each of the electrolysis chambers 33 and 34 to the respective tanks 70 and 80 and stored therein, these water transmission pipes 136 and 137 and Since the alkaline water and the acidic water can be guided to the trap S1 through the water main pipe 138, and the ventilation in the trap S1 can be appropriately blocked, the above-described operation and effect can be accurately obtained.

In this embodiment, both electrodes 3
Since the water introduction valve V8 is kept open for a predetermined time from the start of energization to 5, 36, the alkaline water tank 70 and the acidic water tank 80, which are not sufficiently electrolyzed at the initial stage of electrolysis, are not sufficiently electrolyzed. The supply amount can be reduced, and the desired alkaline water and acidic water can be stored in the alkaline water tank 70 and the acidic water tank 80.

[Brief description of the drawings]

FIG. 1 is a front view schematically showing an electrolyzed water generating apparatus according to the present invention.

FIG. 2 is a front view of the electrolyzed water generation device according to the present invention.

FIG. 3 shows each overflow pipe, water pipe,
It is a figure which shows the connection relationship of a water conveyance main pipe and a discharge pipe.

[Explanation of symbols]

Reference numeral 30: electrolytic cell, 32: diaphragm, 61: concentrated salt water tank, 70
... alkaline water tank, 80 ... acid water tank, 131 ...
Overflow pipe (concentrated salt water), 132 ... (alkaline water) overflow pipe, 133 ... (acidic water) overflow pipe, 136,137 ... water pipe, 138 ... water pipe, 139 ... discharge pipe, S1 ... trap.

Claims (2)

[Claims] 1. An electrolyzed water obtained by mixing a concentrated salt water from a concentrated salt water tank with raw water such as tap water to form an alkaline water and an acidic water by electrolysis in an electrolytic cell having a diaphragm. In the electrolyzed water generator, the concentrated salt water tank, the alkaline water tank, and the acidic water are drawn out of the electrolytic tank and stored in an alkaline water tank, and the acidic water is drawn out of the electrolytic tank and stored in the acidic water tank. An electrolyzed water generating apparatus characterized in that the overflow pipes provided in the tanks are connected to each other to be unified, and a trap is provided in the overflow pipe provided in the concentrated salt water tank. 2. The electrolyzed water generating apparatus according to claim 1, further comprising a water guide pipe for guiding alkaline water and acidic water derived from said electrolytic cell to said trap.