KR100395979B1 - Electrolytic water generating device - Google Patents

Abstract

An object of the present invention is to provide an electrolytic water producing device capable of sufficiently cleaning an electrolytic cell without changing the configuration of the electrolytic cell.

The electrolytic water producing apparatus includes an electrolytic cell for electrolyzing raw water supplied to the electrolytic cell, voltage applying means for applying a forward voltage or a reverse voltage to the electrode in the electrolytic cell, and water flow generating means for rectifying or flowing back water according to the electrode And a control means for controlling the voltage application means and the water flow generation means with a generation operation control mode and a cleaning operation control mode and in the generation operation control mode of the control means, A voltage is applied and water is rectified along the electrode, and in the cleaning operation control mode, reverse voltage is applied to the electrode, and at the same time water is rectified and reversed alternately along the electrode.

Description

Electrolytic water generating device

(Industrial use field)

The present invention relates to an electrolytic water producing apparatus for electrolyzing raw water such as water or saline to produce electrolytic water.

(Prior art)

In the electrolytic water producing apparatus, when the direct current voltage applied to the electrode in the electrolytic cell is used for a long period of time without switching, the scale of calcium and sodium adheres to the surface of the negative electrode in a layered manner to lower the conductivity, it's difficult.

This problem can be solved by, for example, stopping the supply of water to the electrolytic cell and switching the forward and backward directions of the DC voltage applied to the two electrodes, as shown in Japanese Patent Publication No. 2-7675, , And the electrolytic bath is washed in reverse (by electrically peeling the scale from the electrode) until the residual water in the electrolytic bath is discharged.

In addition, as shown in Japanese Patent Application Laid-Open No. 6-31277 or Japanese Patent Application Laid-Open No. 6-29692, a vibration generating means may be provided in an electrolytic bath to give vibration to water in the electrolytic bath, have.

(Problems to be Solved by the Invention)

However, in the electrolytic water producing apparatus disclosed in Japanese Patent Application Laid-Open No. 2-7675, the electrolytic bath can not be cleaned sufficiently because the reverse cleaning is performed for a period of time from the supply of water to the electrolytic bath to the discharge of the residual water of the electrolytic bath . In the electrolytic water producing apparatus disclosed in Japanese Patent Application Laid-Open No. 6-31277 or Japanese Patent Application Laid-Open No. 6-29692, since the vibration generating device is provided in the electrolytic bath, the electrolytic bath itself can not be increased in size, Also, the structure becomes complicated.

An object of the present invention is to provide an electrolytic water producing device capable of sufficiently cleaning an electrolytic cell without changing the configuration of the electrolytic cell.

(MEANS FOR SOLVING THE PROBLEMS)

In order to achieve the above object, an electrolytic water producing apparatus according to the present invention comprises an electrolytic cell for electrolyzing raw water supplied therein, voltage application means for applying a forward voltage or a reverse voltage to the electrode in the electrolytic cell, And a control means for controlling the voltage application means and the water flow generation means with a generation operation control mode and a cleaning operation control mode, In the generation operation control mode of the control means, a forward voltage is applied to the electrodes and water is rectified along the electrodes, and in the cleaning operation control mode, reverse voltage is applied to the electrodes Water was allowed to alternate between rectification and reverse flow along the electrode.

(Effects and Advantages of the Invention)

In the electrolytic water producing apparatus according to the present invention, the forward voltage is applied to the electrode in the generation operation control mode of the control means, and the water is rectified along the electrode. Therefore, when the production operation control mode is selected by the control means, The raw water is electrolyzed to produce electrolytic water.

In addition, in the cleaning operation control mode of the control means, the reverse voltage is applied to the electrodes and the water alternately repeats rectification and reverse flow along the electrodes. Therefore, when the cleaning operation control mode is selected by the control means, And the inside of the electrolytic cell is cleaned. In cleaning the inside of the electrolytic cell, a scale peeled off from the electrode by reverse cleaning and a bubble generated in the electrode are subjected to a synergistic action with the water hammer action by water flow switching, And collides with other parts, thereby promoting the separation of the attached scale. Therefore, the inside of the electrolytic cell is efficiently cleaned in a short time.

Further, in the electrolytic water producing apparatus according to the present invention, reverse voltage is applied to the electrode, and water is alternately repeated in the electrolytic bath along the electrode so that the inside of the electrolytic bath is cleaned. Therefore, the electrolytic water producing apparatus can be practically used at low cost because it is practiced by effectively utilizing the basic constitution of the electrolytic water producing apparatus.

(Example)

Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 shows a first embodiment of the electrolytic water producing apparatus according to the present invention. This electrolytic water producing apparatus is directly connected to a water pipe (not shown) and is connected to two inlets 31a and 31b of the electrolytic bath 30 A water supply pipe 19 (connected to the water pipe) having a water supply electromagnetic valve (normally closed valve) V1 is connected to the branched connection pipe 13 and a drainage electromagnetic opening / (A closing valve) V4 is connected to the drain pipe 12. [ A substantially equal amount of raw water is supplied to the two inlets 31a and 31b of the electrolytic bath 30 through the connecting pipe 13. The flow rate adjusting valves V2 and V3 are provided in the connecting pipe 13, As shown in FIG.

The electrolytic bath 30 includes a bath main body 31 made of resin and having a pair of inlets 31a and 31b at the bottom and having a pair of outflow ports 31c and 31d at the top, And a diaphragm 36 provided between these two electrodes 32 and 33 to form respective electrode chambers 34 and 35 accommodating the respective electrodes 32 and 33. The pair of electrodes 32 and 33, And platinum iridium is fired on the surface of the titanium base material is used as the electrodes 32 and 33. The electrode chamber 34 on the left side is provided with an inlet port 31a, And the inlet 31b and the outlet 31d are communicated with the electrode chamber 35 on the right side.

The discharge pipes 37 and 38 are connected to the respective outlets 31c and 31d and the discharge pipes 37 and 38 are provided with the rising portions 37a and 38a erected upward, 38b of the discharge pipes 37a, 38a of the discharge pipes 37, 38 are connected to each other through the reservoir tank portions 37b, 38b It can be made larger or smaller, and it is not necessary). The top ends of the granular parts 37a and 38a provided at the intermediate portions of the discharge pipes 37 and 38 are open to communicate with the atmosphere through the respective aeration tubes 37c and 38c, Even when the outlet ends of the first and second connecting members 37 and 38 are submerged in the sink 80, a failure state (for example, the occurrence of a siphon phenomenon at the time of stopping the apparatus) is prevented.

The electrodes 32 and 33 are connected to the power supply circuit 120 through the electrode switch 110.

The electrode switch 110 switches between the forward and reverse directions of the DC voltage applied to the two electrodes 32 and 33 in response to a signal from the controller 100. In the state shown by the dotted line in FIG. 1, The solid line state is switched to connect the negative electrode of the power supply circuit 120 to the electrode 32 and connect the positive electrode to the electrode 33 and the solid line of FIG. When a reverse signal is inputted from the control device 100 in the state shown in the figure, the state of the dotted line is switched to connect the negative electrode of the power supply circuit 120 to the electrode 33 and the positive electrode to the electrode 32 have. The power supply circuit 120 converts the AC voltage into a DC voltage of a predetermined value (A). When the OFF signal is input from the control device 100, the DC voltage between the minus electrode and the positive electrode becomes zero, 100, a DC voltage of a predetermined value (A) is applied between the minus electrode and the positive electrode.

The control device 100 is provided with a microcomputer (not shown) that executes a program corresponding to the flow charts of FIGS. 3 to 5 and includes a power switch 101 (ON- 2) that is operated based on the operation of the generation switch 102 (which is an ON-OFF changeover switch) installed close to the sink 80 as shown in FIG. 2 And a rinsing operation control mode in which the integration timer (not shown) built in during the generation operation control mode sets the set time. In each control mode, the electronic switching valves V1 and V4, The power supply circuit 110, and the power supply circuit 120, and the operations described below are obtained.

In the first embodiment configured as described above, when the power switch 101 is turned on, the microcomputer of the control device 100 starts executing the program in the step 200 of FIG. 3, It is determined whether or not the switch 102 is turned on.

At this time, if the generation switch 102 is not turned on, it is determined as NO in step 201 and the process of step 201 is repeatedly executed. If the generation switch 102 is turned on, 201), the process of steps 203, 204, 205, and 206 is executed after the integration timer (timer for accumulating the generation operation time of the device) built in the control device 100 is started in step 202 .

In step S203, the valve opening signal is output to the water supply electromagnetic opening / closing valve V1. In step S204, the electrode switching device 110 outputs an electrostatic signal. In step S205, And outputs a signal. Therefore, when the generation switch 102 is turned on (see the elapsed time T1 of FIG. 6), the step 203 is executed to open the water supply electromagnetic opening / closing valve V1 and keep it open, The steps 204 and 205 are executed so that the DC voltage of the predetermined value A is applied to the two electrodes 32 and 33 of the electrolytic bath 30 from the two electrodes of the power supply circuit 120 through the solid- . Raw water flowing from the water pipe to the water supply pipe 19 is supplied to the electrolytic chambers 34 and 35 of the electrolytic bath 30 through the connection pipe 13 and the flow control valves V2 and V3, The alkaline ionized water with increased hydroxide ions is sent from the electrode chamber 34 of the negative electrode 32 to the sink 80 through the discharge pipe 37, The acidic ionized water with the increased hydrogen ion is sent from the electrode chamber 35 of the positive electrode 33 to the sink 80 through the discharge pipe 38.

In step 206, it is determined whether or not the integrated value S of the integration timer is equal to or greater than the set value S. If the integrated value S of the integration timer is not equal to or greater than the set value S. At step 206, the determination at step 206 is NO and the process of step 207 is executed. Quot; YES " in step 206, the processing after step 211 shown in FIG. 4 is executed. The set value S. is set in consideration of the accumulation amount of scales such as calcium and sodium which are sequentially attached to the electrode 32 of the electrolytic bath 30. The desired electrolytic water is generated in the electrolytic bath 30, (Not shown).

In step 207, it is determined whether or not the generation switch 102 is turned off. At this time, if the generation switch 102 has not been turned off, it is determined as NO in step 207 and the process returns to step 206. If the generation switch 102 is turned off, YES ". In step 208, the accumulation timer is stopped, and the respective processes in steps 209 and 210 are executed, and the flow returns to step 201. [ Until the generation switch 102 is turned off, the processes of steps 206 and 207 are repeatedly performed until the integrated value S of the integration timer becomes the integrated value S. Thereafter, And supplies the electrolytic water to the sink 80 continuously.

In step 209, a valve closing signal is outputted to the water supply electromagnetic opening / closing valve V1, and in step 210, the power supply circuit 120 outputs an OFF signal. Therefore, when the generation switch 102 is turned off in the state where the processing of the steps 206 and 207 is repeatedly executed, the integration timer is stopped by the execution of the step 208 and the integrated value S. is maintained, The supply electromagnetic on-off valve V1 is closed and held in a closed state by the execution of the step 210. The DC voltage across the negative electrode and the positive electrode of the power supply circuit 120 is maintained at zero by the execution of the step 210 . Therefore, the water supply to the electrolytic chambers 34 and 35 of the electrolytic bath 30 is stopped from the water pipe, and the operation of generating the electrolytic water is also stopped.

On the other hand, in step 211 of FIG. 4 in which the integrated value S of the integration timer is equal to or greater than the set value S., the power supply circuit 120 outputs an OFF signal. In step 212, (T) representing the elapsed time becomes zero and the timer value t is equal to or greater than the first set value t1 in step 213 (Refer to the elapsed time T2 of FIG. 6). If the elapsed time after the execution of the step 212 has not reached the first set value t1, the process of the step 213 is repeatedly executed by determining "NO" at the step 213 and the process of the step 212 (See the elapsed time T3 in FIG. 6), the process proceeds to step 213 to determine the answer to be YES, and the processes of steps 214, 215, 216, and 217 are sequentially executed . The first set value t1 is set to a value such that the quantity per unit time supplied to the electrolytic bath 30 through the water supply electromagnetic opening and closing valve V1 and the water receiving volume of the granular parts 37a and 38a of the two discharge pipes 37 and 38 The raw water that has not been electrolyzed in the electrolytic cell 30 and the granular parts 37a and 38a of the two discharge pipes 37 and 38 is filled with raw water.

In step 214, the electrode switching device 110 outputs a reverse signal. In step 215, the power supply circuit 120 outputs an ON signal. In step 216, the water supply electromagnetic opening / closing valve V1 , And in step 217, the valve opening signal is outputted to the drain electromagnetic on-off valve V4. Therefore, the electrode switch 110 is switched from the solid line state to the dotted line state by the execution of the step 214, and the electrode switch 110 is switched from the two electrodes of the power supply circuit 120 by the execution of the step 215, The direct current voltage of the predetermined value A is applied to the two electrodes 32 and 33 of the electrolytic bath 30 in the reverse direction through the electrolytic bath 110 to be maintained. By the execution of the step 216, the water supply electromagnetic opening / closing valve V1 is closed and held in the closed state, and at the same time, the drain electromagnetic opening / closing valve V4 is opened by the execution of the step 217 and maintained in the open state. Therefore, it is possible to prevent the backflow by the natural drop from the rising portions 37a and 38a of the two discharge pipes 37 and 38 to the discharge pipe 12 through the connection pipe 13 of the electrolytic bath 30 and the drain electromagnetic opening / closing valve V4. A scale such as calcium or sodium is peeled from the electrode 32 of the electrolytic bath 30 and discharged together with the electrolyzed water to the drain pipe 12. In this case, Before the reverse cleaning is started, raw water that is not electrolyzed in the electrolytic cell 30 and the granular parts 37a and 38a of the two discharge pipes 37 and 38 is filled by the execution of the steps 211, 212, and 213, The electrode 33 that has been switched from the positive to the negative at the start of cleaning is not faded into ionized water having a high hydrogen ion concentration and the hydrogen embrittlement that shortens the life of the electrode 33 is suppressed.

After the execution of the step 217, each step of FIG. 5 is executed. In step 221 of FIG. 5, the timer is reset to zero to indicate the elapsed time, and in step 222, whether or not the timer value t is equal to or greater than the second set value t2 is determined (Refer to the elapsed time T3 in Fig. 6). If the elapsed time after the execution of the step 221 has not reached the second set value t2, the CPU 21 determines "NO" in the step 222 and repeats the processing of the step 222, (Refer to the elapsed time (T4) in FIG. 6), the process proceeds to step 222, and the process of steps 223 and 224 is executed. The second set value t2 is set to a value such that the water amount per unit time drained to the drain pipe 12 through the drain opening / closing valve V4 and the water receiving volume of the granular parts 37a, 38a of the two drain pipes 37, When the determination in step 222 is YES, the inside of the granular parts 37a and 38a of the two discharge pipes 37 and 38 are emptied.

In step 223, the count value C of the counter provided in the control device 100 is incremented by one. In step 224, the counter value C is set to Co (e.g., 5) Or more. If the count value C has not reached the set value Co, it is determined as NO in step 224, and after the execution of the steps 225, 226, 227, and 228 of FIG. 5, If the count value C reaches the set value Co, it is determined to be YES in step 224 and after the execution of the steps 231 to 238 in the fifth step, Step 206 is executed.

In step 225, a valve opening signal is output to the water supply electromagnetic opening / closing valve V1. In step 226, a drain closing valve V4 is provided to output a valve closing signal. In step 227, And the value t indicating the elapsed time is reset to zero. In step 228, it is determined whether or not the timer value t is equal to or greater than the third set value t3. Therefore, by the execution of the step 225, the water supply electromagnetic opening / closing valve V1 is opened and held in the open state, and the drain electromagnetic opening / closing valve V4 is closed and held in the closed state by the execution of the step 226. [

The raw water flowing from the water pipe to the water supply pipe 19 is supplied to the two electrodes 32 and 33 of the electrolytic bath 30 through the electrolytic bath 30 while the DC voltage of the predetermined value A is applied in the reverse direction. Is supplied toward the granular parts 37a and 38a of the discharge pipes 37 and 38. The reverse cleaning is performed in such a rectified state and the scale of calcium and sodium is peeled from the electrode 32 of the electrolytic bath 30 And discharged to the granular parts 37a and 38a of the two discharge pipes 37 and 38 together with the electrolyzed water.

If the elapsed time after the execution of the step 227 has not reached the third set value t3, the CPU 21 determines "NO" in the step 228 and repeats the processing in the step 228. In step 227, YES " in the step 228 and returns to the step 216 of the above-described step 4. [0138] The third set value t3 is calculated in consideration of the quantity per unit time supplied to the electrolyzer 30 through the water supply electromagnetic valve V1 and the water receiving capacity of the granular parts 37a and 38a of the two discharge pipes 37 and 38 And when judged to be YES in the step 228, the calcium ions, sodium ions, and the like released from the electrodes 32 of the electrolytic bath 30 are supplied to the granular parts 37a and 38a of the two discharge pipes 37 and 38 Electrolyzed water containing scale is filled.

Therefore, during the period until the count value C reaches the set value Co, a reverse voltage is applied to the electrodes 32 and 33 of the electrolytic bath 30 as indicated by T3 to T12 in Fig. 6 Since the water alternately repeats the rectification and the reverse flow along the electrodes 32 and 33, a water hammer action due to the reverse cleaning and the water flow conversion occurs and the inside of the electrolytic bath 30 is cleaned. During the cleaning of the inside of the electrolytic bath 30, the scales peeled off from the electrodes 32 by reverse cleaning and the bubbles generated by the respective electrodes 32 and 33 are mixed with the electrolytic bath The inside of the electrolytic bath 30 is exposed to the inside of the electrolytic bath 30 for a short period of time because it collides with other parts (for example, the bath main body 31 and the diaphragm 36) as well as the electrodes 32, . ≪ / RTI >

On the other hand, in step 231 executed after determining "YES" in step 224, the power supply circuit 120 outputs an OFF signal. In step 232, the elapsed time after execution of step 221 (t) is equal to or greater than the fourth set value t4. If the elapsed time after the execution of the step 221 has not reached the fourth set value t4, the process returns to the step 232 and the process of the step 232 is repeatedly performed. (Refer to the elapsed time (T14) in FIG. 6), the process proceeds to step 232 to determine "YES", and the processes in steps 233 to 238 are sequentially executed do. The fourth set value t4 is set in consideration of the amount of water per unit time drained from the electrolytic bath 30 to the drain pipe 12 through the drain electronic on-off valve V4. In step 232, The water in both of the granular parts 37a and 38a of the two discharge pipes 37 and 38, the electrolytic bath 30, the connecting pipe 13 and the water discharge pipe 12 is drained and emptied. The elapsed time T13 in FIG. 6 indicates that the water in both of the granular parts 37a and 38a of the two discharge pipes 37 and 38, the electrolytic bath 30, the connecting pipe 13 and the water discharge pipe 12 is drained and emptied .

In step 233, a valve opening signal is output to the water supply electromagnetic opening / closing valve V1. In step 234, a valve closing signal is output to the drain opening / closing valve V4. In step 235, And outputs an ON signal to the power supply circuit 120 in step 236. The ON / After the execution of step 236, the count value C is reset to zero in step 237, the integration value S is reset to zero in step 238, 206). Therefore, by the execution of the step 233, the water supply electromagnetic opening / closing valve V1 is opened and kept open, and the drain electromagnetic opening / closing valve V4 is closed and held in the closed state by the execution of the step 234, The electrode switch 110 is switched from the dotted line state to the solid line state by the execution of step 235 and the electrode switch 110 in a solid line state is switched from the two electrodes of the power supply circuit 120 by the execution of step 236 The direct current voltage of the predetermined value A is applied to the two electrodes 32 and 33 of the electrolytic bath 30 in the forward direction and held.

Therefore, after the determination at step 232 is YES (after the elapsed time T14 of FIG. 6), the state before the determination of YES at step 206 (the elapsed time T2 of the sixth diagram) The raw water flowing from the water pipe to the water supply pipe 19 is supplied to the electrolytic chambers 34 and 35 of the electrolytic bath 30 through the connection pipe 13 and the flow rate adjusting valves V2 and V3 At the same time, the raw water is electrolyzed in the electrolytic bath 30 to generate electrolytic water, and the alkaline ionized water whose hydroxide ion is increased from the electrode chamber 34 of the negative electrode 32 is discharged to the sink 80 through the discharge pipe 37 And the acidic ionized water whose hydrogen ion has been increased from the electrode chamber 35 of the positive electrode 33 is sent to the sink 80 through the discharge pipe 38.

In the first embodiment, the present invention is applied to the electrolytic water producing apparatus shown in FIG. 1 and FIG. 2, but the present invention can be practiced in substantially the same manner as the electrolytic water producing apparatus shown in FIG. The electrolytic water producing apparatus of FIG. 7 has a water storage tank 10 for storing a required amount of raw water (tap water). The water storage tank 10 is provided therein with a water level sensor 11 (detecting the upper water level and the lower water level) connected to the control device 100A. By the signal from the water level sensor 11, Is opened and closed to maintain the water level in the water storage tank 10 within a predetermined range.

The water storage tank 10 is provided with an overflow water pipe 12 whose upper end opening is located below the predetermined amount L from the bottom wall of the electrolytic bath 30 and at the same time the two outlets 31a, 31b are connected to the connecting pipe 13. The connecting pipe 13 is provided with an electric pump P1 whose operation is controlled by the control device 100A and a manually adjustable flow rate adjusting valve V2 And V3 are respectively provided so that substantially equal amounts of raw water are supplied to the two inlets 31a and 31b of the electrolytic bath 30 through the connecting pipe 13. [ The configurations of the electrolytic bath 30, the discharge pipes 37 and 38, the electrode switch 110, the power supply circuit 120 and the like are substantially the same as those of the first embodiment shown in Figs. 1 and 2, And a description thereof will be omitted.

The control device 100A shown in Fig. 7 includes a microcomputer (not shown) which executes a program corresponding to the flow chart of Fig. 8 and a program corresponding to the flowcharts of Figs. 9 to 11, respectively , The operation of the electromagnetic opening / closing valve V11 is controlled based on a signal from the water level sensor 11 at the time of the ON operation of the power switch 101 (ON-OFF changeover switch) shown in FIG. 7 On the basis of the operation of the generation switch (which is an ON-OFF change-over switch) installed in the same manner as the generation switch 102 shown in FIG. 2 during the ON operation of the power switch 101 shown in FIG. 7 P1, the electrode switch 110, the power supply circuit 120, and the like, so that each operation described below is obtained.

In the second embodiment configured as described above, when the power switch 101 is turned on, the microcomputer, which is one of the control apparatus 100A, starts executing the program in the step 301 of FIG. 8, , It is determined whether or not the water level in the water storage tank 10 is lower than the lower water level based on a signal from the water level sensor 11 of the water storage tank 10. If the water level in the water storage tank 10 is not lower than the lower limit water level, it is determined as NO in step 302 and the process of step 302 is repeatedly executed. If the water level in the water storage tank 10 is lower than the lower limit water level YES " in the step 302, and the processing of the steps 303 and 304 is executed.

In the step 303, a valve opening signal is outputted to the electromagnetic opening / closing valve V11.

Therefore, the electromagnetic opening / closing valve V11 is maintained in the opened state, and the raw water is injected into the water storage tank 10 through the water supply pipe 19. In step 304, it is determined based on a signal from the water level sensor 11 whether or not the water level in the water storage tank 10 is equal to or higher than the upper water level.

At this time, if the water level in the water storage tank 10 is not the upper water level or more, the result of the determination in step 304 is NO and the process of step 304 is repeatedly executed. If the water level in the water storage tank 10 is higher than the upper water level YES " in the step 304 and executes the process of the step 305, and then the process returns to the step 302. [ In the step 305, a valve closing signal is outputted to the electromagnetic opening / closing valve V11. Therefore, the electromagnetic opening / closing valve V11 is maintained in the closed state, and the water supply from the water supply pipe 19 to the water storage tank 10 is stopped. As a result, the water level in the water storage tank 10 is maintained in the set range.

Incidentally, the execution of the program corresponding to the flowchart of FIG. 8 is not shown, but the processing is terminated after executing the same processing as the step 305 because the power switch 101 is turned off.

In the second embodiment configured as described above, when the power switch 101 is turned on, another microcomputer of the control device 100A starts executing the program in the step 400 of the flowchart of FIG. 9, It is determined whether or not the generation switch 102 is turned on.

At this time, if the generation switch 102 is not turned on, the determination at step 401 is NO and the process at step 401 is repeatedly executed. If the generation switch 102 is turned on, 403, 404, 405, and 406 after starting the integration timer (timer for accumulating the generation operation time of the device) built in the control device 100A in step 402, .

In step 403, a drive signal is output to the electric pump P1. In step 404, the electrode switch 110 outputs an output signal. In step 405, an ON signal is output to the power supply circuit 120 do. Therefore, when the generation switch 102 is turned on (see the elapsed time T1 in FIG. 12), the electric pump P1 is driven and held by the execution of the step 403, and at the same time, The DC voltage of the predetermined value A is applied to the two electrodes 32 and 33 of the electrolytic bath 30 in the forward direction from the two electrodes of the power supply circuit 120 through the solid line electrode switch 110 .

The raw water in the water storage tank 10 is supplied to the electrolytic chambers 34 and 35 of the electrolytic bath 30 through the connecting pipe 13 and the flow rate adjusting valves V2 and V3, The alkaline ionized water whose hydroxide ion is increased from the electrode chamber 34 of the negative electrode 32 is transferred to the sink through the discharge pipe 37 and the electrolytic water is discharged from the electrode 34 of the positive electrode 33 From the chamber 35, the acidic ionized water with the increased hydrogen ion is delivered to the sink through the discharge pipe 38.

In step 406, it is determined whether or not the integrated value S of the integration timer is equal to or greater than the set value So. If the integrated value S of the integration timer is not equal to or greater than the set value So at step 406, the process proceeds to step 407. In step 406, the process of step 407 is executed. Quot; Yes " in step 406, and the processing after step 411 shown in FIG. 10 is executed. The set value So is set in consideration of the accumulation amount of scale such as calcium and sodium which are sequentially attached to the electrode 32 of the electrolytic bath 30. The desired electrolytic water is generated in the electrolytic bath 30 and supplied to the sink .

In step 407, it is determined whether or not the generation switch 102 is turned off. At this time, if the generation switch 102 has not been turned off, it is determined as NO in step 407, the process returns to step 406, and the generation switch 102 is turned off, Quot; YES " in step 408, executes each processing of steps 408, 409 and 410, and returns to step 402. [ Unless the generation switch 102 is turned off, the processes of steps 406 and 407 are repeatedly executed until the settling value S of the integration timer becomes the set value So, The electrolytic water is continuously supplied to the sink.

In step 409, the electric pump P1 outputs a stop signal, and in step 410, the power supply circuit 120 outputs an OFF signal. Therefore, when the generation switch 102 is turned off in the state where the processing of the steps 406 and 407 is repeatedly executed, the integration timer is stopped by the execution of the step 408 and the integration value So is maintained, The electric pump P1 is stopped and held by the execution of the step 409 and the DC voltage between the negative electrode and the positive electrode of the power supply circuit 120 becomes zero by the execution of the step 410. [ The supply of water from the water storage tank 10 to the electrode chambers 34 and 35 of the electrolyzer 30 is stopped and the supply from the power supply circuit 120 to the two electrodes 32 and 33 of the electrolyzer 30 And the generation operation of the electrolytic water is stopped. Immediately after the generation of the electrolytic water is stopped, the granular parts 37a and 38a of the two discharge pipes 37 and 38 and the electrolytic water 30 are discharged from the electrolytic bath 30 to the water storage tank 10 through the electric pump P1, 7, as shown in FIG. 7, and surplus water is discharged to the outside through the overflow drain pipe.

On the other hand, in step 411 of FIG. 10 in which the integrated value S of the integration timer is equal to or greater than the set value So, the power supply circuit 120 outputs an OFF signal. In step 412, The timer that is different from the integration timer provided in the timer 100A is reset and the value t indicating the elapsed time is set to zero. In step 413, if the timer value t is equal to or greater than the first set value t1 (See the elapsed time T2 in FIG. 12). If the elapsed time after the execution of the step 412 has not reached the first set value t1, the process returns to the step 413 and the process of the step 413 is repeatedly performed. (Refer to the elapsed time (T3) in FIG. 12), the process proceeds to steps 414, 415, and 416 by determining "YES" in step 413 In order. The first set value t1 is set in consideration of the quantity per unit time supplied to the electrolyzer 30 by the electric pump P1 and the water receiving capacity of the granular parts 37a and 38a of the two discharge pipes 37 and 38 The electrolytic bath 30 and the raw water unillustrated in the granular parts 37a and 38a of the two discharge pipes 37 and 38 are filled.

In step 414, a reverse signal is output to the electrode switch 110. In step 415, an ON signal is output to the power supply circuit 120. In step 416, the electric pump P1 stops And outputs a signal. The electrode switch 110 is switched from the solid line state to the dotted line state by the execution of the step 414 and the electrode switch 110 in the dotted line state from the two electrodes of the power supply circuit 120 The DC voltage of the predetermined value A is applied to the two electrodes 32 and 33 of the electrolytic bath 30 in the reverse direction and held. The electric pump P1 is stopped and held by the execution of the step 416. [ The water is supplied from the granular parts 37a and 38a of the two discharge pipes 37 and 38 to the water storage tank 10 through the electrolytic bath 30 and the connecting pipe 13 and the stationary electric pump P1 Reverse cleaning is performed in a state in which backflow occurs and calcium and sodium scales such as calcium and sodium are discharged from the electrode 32 of the electrolyzer 30 and discharged to the water storage tank 10 together with the electrolyzed water. Before the reverse cleaning is started, the electrolytic bath 30 is filled with raw water that has not been electrolyzed to the granular parts 37a and 38b of the two discharge pipes 37 and 38 by executing the steps 411, 412, and 413 The electrode 33 that is switched from the positive to the negative at the start of the reverse cleaning is not wasted in the ionized water having a high hydrogen ion concentration and the hydrogen embrittlement that shortens the life of the electrode 33 is suppressed. When the water level in the water storage tank 10 becomes equal to or larger than the upper end opening of the overflow water pipe 12 by the above-described backward flow, the water is discharged to the outside through the overflow water pipe 12.

After the execution of the step 416, each step of FIG. 11 is executed.

In step 421 of FIG. 11, the timer is reset to zero the elapsed time value t. In step 422, it is determined whether or not the timer value t is equal to or greater than the second set value t2 (See the elapsed time T3 in FIG. 12). However, if the elapsed time after the execution of the step 421 has not reached the second set value t2, it is determined as NO in the step 422 and the processing of the step 422 is repeatedly executed. When the elapsed time after the execution reaches the second set value t2 (see the elapsed time T4 in FIG. 12), it is determined to be YES in step 422 and the processes in steps 423 and 424 are executed. The second set value t2 is set in consideration of the quantity of water per unit time flowing back from the electrolytic bath 30 to the water storage tank 10 and the water receiving capacity of the granular parts 37a and 38a of the two discharge pipes 37 and 38 When the determination is "YES" in the step 422, the inside of the granular parts 37a, 37a of the two discharge pipes 37, 38 is made vacant.

In step 423, the counter value C of the counter provided in the control device 100A is incremented by 1. In step 424, the counter value C is set to Co (for example, 5) Or more. However, if the counter value C has not reached the set value Co, it is determined as NO in step 424, and after the execution of steps 425, 426 and 427 in FIG. 11, And the steps 421, 422, 423 and 424 of FIG. 11 are executed. When the count value C reaches the set value Co, the determination at step 424 is YES, Step 436 of FIG. 9 is executed.

In step 425, a driving signal is output to the electric pump P1. In step 426, the timer is reset to zero the elapsed time value t. In step 427, It is determined whether or not the value t is equal to or more than the third set value t3.

Therefore, the electric pump P1 is driven and held by the execution of the step 425. [

The raw water in the storage tank 10 is supplied to the two discharge tubes 37 through the electrolytic bath 30 in a state where the DC voltage of the predetermined value A is applied to the two electrodes 32 and 33 of the electrolytic bath 30 in the reverse direction, 38 and the electrodes 32 of the electrolytic bath 30 are peeled off from the electrolytic bath 30 by electrolytic cleansing in such a rectified state and the scale of calcium, 38a of the two discharge pipes 37, 38, respectively.

If the elapsed time after the execution of the step 426 has not reached the third set value t3, the process returns to the step 427 and the process of the step 427 is repeatedly performed. Quot; YES " in the step 427 and returns to the step 416 in the above-mentioned FIG. 10, if the elapsed time after the execution of the above processing has reached the third set value t3. The third set value t3 is set in consideration of the quantity per unit time supplied to the electrolyzer 30 by the electric pump Pl and the water receiving capacity of the granular parts 37a and 38a of the two discharge pipes 37 and 38 When it is judged as YES in step 427, the scales of calcium, sodium, and the like separated from the electrodes 32 of the electrolytic bath 30 are included in the granular parts 37a and 38a of the two discharge pipes 37 and 38 Electrolytic water is filled up.

Therefore, as indicated by T3 to T12 in FIG. 12, a reverse voltage is applied to the electrodes 32 and 33 of the electrolyzer 30 while the count value C reaches the set value Co, 32 and 33, the water is alternately repetitively regenerated and countercurrent. Therefore, a water hammer action due to reverse cleaning and water flow is generated, and the inside of the electrolytic bath 30 is cleaned. During the cleaning of the inside of the electrolytic bath 30, the scale peeled off from the electrode 32 by reverse cleaning and the bubbles generated at the respective electrodes 32 and 33 are caused to coincide with the water hammer action by water flow switching, The inside of the electrolytic bath 30 is exposed to the inside of the electrolytic bath 30 for a short period of time so as to collide with the other parts (for example, the bath main body 31 and the diaphragm 36) . ≪ / RTI >

On the other hand, in step 431 executed after determining "YES" in step 424, the power supply circuit 120 outputs an OFF signal. In step 432, the elapsed time after step 421 is executed t is equal to or greater than the fourth set value t4. However, if the elapsed time after the execution of the step 421 has not reached the fourth set value t4, the process returns to the step 432 and the process of the step 432 is repeatedly performed. When the elapsed time after the execution reaches the fourth set value t4 (see the elapsed time T14 in FIG. 12), it is determined as YES in the step 432 and the processing of the steps 433 to 437 is executed in order. The fourth set value t4 is set in consideration of the quantity of water per unit time flowing backward from the electrolytic bath 30 to the water storage tank 10. When it is determined as YES in the step 432, 38a of the electrolytic bath 30 and the water in the electrolytic bath 30 are both drained and emptied. The elapsed time T13 in FIG. 12 shows a time point at which both the granular parts 37a and 38a of the two discharge pipes 37 and 38 and the water in the electrolytic bath 30 are drained and emptied.

In the step 433, a drive signal is outputted by the electric pump P1. In the step 434, an electrostatic signal is outputted by the electrode switching device 110, and in the step 435, by the power supply circuit 120 And outputs an ON signal. After the execution of the step 435, the count value C is reset to zero in the step 436 and the integration value S is reset to zero in the step 437, 406). Therefore, the electric pump P1 is driven and held by the execution of the step 433, and the electrode switch 110 is switched from the dotted line state to the solid line state by the execution of the step 434, The DC voltage of the predetermined value A is applied to the two electrodes 32 and 33 of the electrolytic bath 30 in the forward direction from the two electrodes of the power supply circuit 120 through the solid line electrode switch 110 maintain.

In this case, after the determination at step 432 is "Yes" (after the elapsed time T14 of FIG. 12), the state before the determination of "Yes" at step 406 (the elapsed time T2), and the raw water in the water storage tank 10 is supplied to the electrolytic chambers 34, 35 of the electrolytic bath 30 through the connection pipe 13 and the flow control valves V2, V3 At the same time, the raw water is electrolyzed in the electrolyzer 30 to generate electrolytic water, and the alkaline ionized water in which the hydroxide ion is increased from the electrode chamber 34 of the negative electrode 32 is sent to the sink through the discharge pipe 37, The acidic ionized water with the increased hydrogen ions is sent to the synchromesh through the discharge pipe 38 from the electrode chamber 35 of the positive electrode 33.

In the above embodiments, the electrolytic water produced in the electrolytic bath 30 is directly sent to the sink through the discharge pipes 37 and 38. However, the present invention is not limited to the electrolytic bath 30, The electrolytic water may be temporarily stored in the storage tank through the discharge pipes 37 and 38 and taken out of the storage tank if necessary. In each of the above-described embodiments, the cleaning operation is automatically performed every time the integrated value S of the integration timer for accumulating the operation time of the device becomes equal to or greater than the set value So. However, instead of the integration timer, (ON-OFF switching switch) is provided close to the generating switch 102, and the cleaning operation is performed in response to the operation of the cleaning switch. In addition, in the practice of the present invention, it is also possible to constitute such that a predetermined concentration of saline solution is injected into the water storage tank 10 shown in FIG. 7 (that is, the raw water may be saline solution).

FIG. 1 is an overall view showing an electrolytic water producing apparatus according to a first embodiment of the present invention;

FIG. 2 is a schematic view showing the state of use of the electrolytic water producing apparatus shown in FIG. 1,

FIG. 3 is a flow chart showing a part of a program executed by a microcomputer provided in the control device of the electrolytic water producing apparatus shown in FIG. 1;

4 is a flow chart showing another part of a program executed by a microcomputer included in the control device of the electrolytic water producing apparatus shown in Fig.

5 is a flowchart showing the remaining part of the program executed by the microcomputer of the control device of the electrolytic water producing apparatus shown in FIG. 1;

6 is an operational explanatory view of the electrolytic water producing apparatus shown in FIG. 1,

FIG. 7 is a general view showing a second embodiment of the electrolytic water producing apparatus according to the present invention,

FIG. 8 is a flowchart showing a program executed by one microcomputer included in the controller of the electrolytic water producing apparatus shown in FIG. 7,

FIG. 9 is a flow chart showing a part of a program executed by another microcomputer provided in the controller of the electrolytic water producing apparatus shown in FIG. 7;

FIG. 10 is a flow chart showing another part of a program executed by another microcomputer provided in the controller of the electrolytic water producing apparatus shown in FIG. 7; FIG.

FIG. 11 is a flow chart showing the remaining part of a program executed by another microcomputer provided in the control device of the electrolytic water producing apparatus shown in FIG. 7; FIG.

12 is an explanatory view of the operation of the electrolytic water producing apparatus shown in Fig. 7; Fig.

DESCRIPTION OF THE REFERENCE NUMERALS

10: Reservoir tank 30: Electrolyzer

32, 33: electrodes 37, 38:

37a, 38a: granulating part 110: electrode switching device

120: power supply circuit 100, 100A: control device

101: power switch 102: generating switch

P1: Electric pump V1: Water supply electronic opening / closing valve

V4: Drain opening / closing valve

Claims (1)

A water supply means for applying a forward voltage or a reverse voltage to the electrode in the electrolytic cell and a water flow generating means for rectifying or flowing back water along the electrode, And a control means for controlling the voltage application means and the water flow generation means with the operation control mode and the cleaning operation control mode. In the generation operation control mode of the control means, a forward voltage is applied to the electrodes At the same time, the water is rectified along the electrode, and in the cleaning operation control mode, reverse voltage is applied to the electrode, and at the same time water is rectified and reversed alternately along the electrode. .