JP5416647B2 - Electrolyzed water generator with piping path clogging prevention function - Google Patents

Description

  The present invention relates to an apparatus for producing electrolyzed water suitable for use in hand sterilization, food processing equipment sterilization, or the general field of cleaning, crop cultivation, disease prevention, etc. The present invention relates to an electrolyzed water generating apparatus having a function of preventing clogging of a piping path based on conversion.

  In an electrolyzed water generating device that generates electrolyzed water using a general saturated electrolyte solution, the electrolyte is precipitated and recrystallized in the middle of the piping due to the influence of the surrounding environment and temperature change, etc. Have problems such as clogging.

  For example, in the case of an electrolyzed water generating device configured to send saturated saline solution generated in a salt tank to an electrolytic cell via a plurality of pipes by a pump, piping in which the saturated salt solution is mixed with tap water On the way to the route, salt precipitation occurs due to a decrease in temperature of the saturated saline solution due to environmental changes, resulting in a blockage of the conduit, which hinders the generation of electrolyzed water. was there.

  Therefore, for example, an “electrolyzed water generating device” described in Patent Document 1 has been developed as an electrolyzed water generating device having a function of preventing clogging of a piping path based on recrystallization of an electrolyte or the like. In this production device, raw water is finally returned to the electrolyte dissolution tank from the bottom outlet through a bypass path by a metering pump, and the supply path connecting each on-off valve and this is washed with raw water such as tap water by this operation. Thus, there is disclosed a technique that can prevent the on-off valves and the supply paths from being blocked due to the deposition of electrolyte.

JP 2003-181452 A

  However, in the electrolyzed water generating device disclosed in Patent Document 1, when electrolyzed water is generated after washing the piping path, raw water such as tap water remaining in the bypass path is transferred to the electrolytic cell via a metering pump. As a result, there is a case where the electrolyzed water having a predetermined concentration is temporarily not supplied, and as a result, there is a problem that electrolyzed water having a predetermined property cannot be generated (the pH of the electrolyzed water does not reach a predetermined value). It was.

  In addition, the configuration of the apparatus itself is complicated, and as a result, there is an economical problem that the apparatus itself becomes expensive.

  Therefore, the technical problem of the present invention is that the electrolyzed water having a predetermined concentration is supplied even after the cleaning operation for preventing the piping path from being clogged due to recrystallization of the electrolyte, etc. It is an object to provide an electrolyzed water generating device that is devised so that electrolyzed water can always be generated, and further has a piping path clogging prevention function that is devised so that the entire device can be made inexpensively.

Means taken in the present invention to solve the above technical problems are as follows.
(1) Electrolyzed water generation configured to generate electrolyzed water by feeding the saturated electrolyte solution taken out from the electrolyte dissolving tank to the electrolytic tank while diluting it with raw water such as tap water to an electrolyte concentration suitable for electrolysis An apparatus for circulating a saturated electrolyte solution taken out from the electrolyte dissolution tank to a part of an electrolyte solution supply channel for sending the saturated electrolyte solution to the electrolyte tank by a pump, and circulating the saturated electrolyte solution to the electrolyte dissolution tank by the pump A part of the flow path is formed as a common flow path part having a common flow path, and a flow path opening / closing means is provided in the middle of the electrolyte solution supply flow path and the circulation flow path to open and close the flow path of the circulation flow path. When the means is switched and controlled, the channel opening / closing means provided in the electrolyte solution supply channel is switched and the saturated electrolyte solution is sent to the raw water supply channel to dilute the diluted electrolyte solution. When the flow path opening / closing means of the circulation flow path is switched and controlled while being fed to the electrolytic tank to generate electrolyzed water, the flow path opening / closing means of the supply flow path is closed and the pump is taken out from the electrolyte dissolution tank. The saturated electrolyte solution is circulated in the circulation channel, and the raw water remaining in the common channel part or / and the saturated electrolyte solution is sent to the electrolyte dissolution tank to clean the inside of the common channel part. It is characterized by being configured as described above.

(2) The electrolyte dissolution tank is provided with a delivery inlet for delivering the saturated electrolyte solution, and a reception inlet for dissolving the recrystallized electrolyte and returning the solution to the electrolyte dissolution tank. And a receiving passage through which the saturated electrolyte solution is circulated, and between the raw water intake port and the delivery inlet, the raw water is fed into the delivery port of the electrolyte dissolution tank. A first water supply flow path for injecting into the raw water, communicating between the raw water intake and the electrolytic cell, and forming a raw water supply flow channel for injecting raw water into the electrolytic cell, A first common flow that communicates with each other to form an electrolyte solution supply flow path, and shares a continuous portion from the circulation flow path, the raw water supply flow path, and the electrolyte solution supply flow path from the delivery inlet. A passage is formed, and the electrolyte solution supply channel and the circulation are formed. A part of the flow path that is continuous from the first common flow path portion is shared to form a second common flow path portion, while the raw water supply flow path and the electrolyte solution supply flow path are continuous from the electrolytic cell. A third common flow path portion is formed by sharing a part of the second flow path, and the second common flow path portion is provided with the pump, and the circulation flow path and the electrolyte solution supply flow path A first opening / closing valve serving as a first channel opening / closing means for controlling opening / closing of the circulation channel is provided between the two common channel portions and the receiving port, and the second common channel of the electrolyte solution supply channel is provided. A check valve as a channel opening / closing means that is opened by a constant water pressure is provided between the channel portion and the third common channel portion, and in the vicinity of the raw water intake port, the raw water supply channel and The first on-off valve is provided with second and third on-off valves for switching the raw water supply flow path and stopping both water supply and water supply. In the open state, the raw water remaining or stored in the first common flow path portion by the pump, and / or the saturated electrolyte solution in the electrolyte dissolution tank is circulated in the circulation flow path, and the circulation flow path This is characterized in that the pipe cleaning operation for cleaning the inside of the pipe is made possible.

(3) The electrolyte dissolution tank is provided with a delivery inlet for delivering the saturated electrolyte solution and a reception inlet for dissolving the recrystallized electrolyte and returning the solution to the electrolyte dissolution tank. A raw water supply flow path that connects the inlets to form a circulation flow path for circulating the saturated electrolyte solution and that connects the raw water intake and the discharge inlet to inject raw water into the discharge inlet. The raw water inlet and the electrolytic cell are connected in communication to form a raw water supply channel for injecting raw water into the electrolytic cell, and the discharge inlet and the electrolytic cell are connected in communication to supply an electrolyte solution. Forming a first common flow path portion that shares a continuous part from the delivery inlet of the circulation flow path, the raw water supply flow path, and the electrolyte solution supply flow path, thereby forming the electrolyte solution supply flow The first common flow path portion of the path and the circulation flow path The second common flow path portion is formed by sharing a continuous part of the first water flow path, while the third common flow is shared by sharing a continuous part of the raw water supply flow path and the electrolytic solution supply flow path from the electrolytic cell. A passage portion is formed, and the second common flow path portion is provided with the pump, and the circulation flow path and the electrolyte solution supply flow path are provided between the second common flow path portion and the receiving port. Is provided with a three-way valve for switching the channel as the first channel opening / closing means, and a switch for controlling the switching between the raw water feed channel and the raw water supply channel near the raw water intake port. 2, a third on-off valve is provided to control the opening and closing of the three-way valve for switching the flow path, and the raw water remaining or stored in the first common flow path section by the pump, or in the electrolyte dissolution tank A saturated electrolyte solution is circulated through the circulation channel to clean the inside of the electrolyte solution supply channel. The present invention is characterized in that the flow path cleaning operation is enabled.

(4) At the time of the flow path cleaning operation, the second and third on-off valves are switched and controlled, and after the raw water is injected into the electrolyte dissolution tank from the raw water supply flow path, the injection is stopped, and subsequently, The first open / close valve or the three-way valve as the flow path opening / closing means is switched and the raw water remaining in the first common flow path is sent to the circulation flow path by the pump, and then the electrolyte is dissolved. The saturated electrolyte solution in the tank is circulated through the circulation flow path to clean the common flow path and the piping in the circulation path that follows the common flow path.

(5) The delivery inlet of the electrolyte dissolution tank is provided at the bottom of the electrolyte dissolution tank, and a mesh filter is attached to the delivery inlet.

(6) A water level detection means for detecting the lower water level of the saturated electrolyte solution is provided in the electrolyte dissolution tank, and after the low water level is detected, the generation of the electrolytic water is stopped after a predetermined time or a predetermined operation. And it controls to switch to the said flow-path washing | cleaning operation | movement.

(7) An ammeter for measuring the electrolysis current value in the electrolytic cell is provided, and when the ammeter detects an abnormal value, the generation of electrolyzed water is stopped and the operation is switched to the flow path cleaning operation. It is characterized by control.

(8) The polarity of the applied voltage applied to each electrolysis chamber of the electrolyzer is switched, or first and second provided in each water supply path of alkaline water and acidic water provided in the electrolyzer A scale removing operation for removing oxides and the like adhering to the alkaline water sampling channel is controlled continuously after the pipe cleaning operation by controlling the water channel switching solenoid valve.

(9) The raw water supply switching means is configured by a second on-off valve provided in the raw water supply passage and a third on-off valve provided in the raw water supply passage. .

  According to the means according to claim 1 described in the above (1), in the electrolyzed water generating apparatus, the pump is operated in accordance with the opening / closing operation of each channel opening / closing means provided in the electrolyte solution supply channel and the circulation channel. To the electrolytic cell to generate electrolyzed water, or the above-mentioned pump circulates the saturated electrolyte solution in the circulation channel, and sends the saturated electrolyte solution remaining in the common channel to the electrolyte dissolution tank. Since the inside of the flow path is washed, raw water such as tap water remaining in the common flow path is prevented from being supplied as it is to the electrolytic cell via the pump, so that the electrolyzed water having a predetermined concentration is always supplied to the electrolytic cell. In common, it is possible to generate electrolyzed water having a predetermined property.

  Further, according to the means according to claim 2 described in the above (2), while sharing a part of the water supply channel and the circulation channel, the circulation channel and a part of the electrolyte solution supply channel are shared, By applying a load that does not open at a constant water pressure to the check valve, the flow path piping can be cleaned only by opening control of one first on-off valve, thereby simplifying the flow path configuration and manufacturing the entire apparatus. Cost can also be reduced.

  Further, according to the means according to claim 3 described in the above (3), while sharing a part of the water supply channel and the circulation channel, the circulation channel and a part of the electrolyte solution supply channel are shared, Since the pipe cleaning operation can be performed only by the switching control of the three-way valve, the configuration of the entire apparatus is simplified, and it is possible to reduce the size and cost.

  According to the means according to claim 4 described in the above (4), at the beginning of the pipe cleaning operation after the raw water injection, the raw water remaining in the first common flow path portion first passes through the circulation flow path first. It circulates and dissolves deposits in the piping, and then the saturated electrolyte solution in the electrolyte dissolution tank circulates in the circulation channel. Therefore, after the pipe cleaning operation, the saturated electrolyte solution is filled in the common flow path (a part of the electrolyte solution supply flow path). Therefore, at the time of subsequent electrolysis, a desired saturated electrolyte solution is sent to the electrolytic cell and a predetermined flow is obtained. It is possible to generate electrolyzed water having properties or pH without any trouble.

  According to the means according to claim 5 described in (5) above, a mesh filter is attached to the delivery inlet provided at the bottom of the electrolyte dissolution tank, and the deposited electrolyte adheres to the fine mesh. Easy to deposit, they block the flow path near the delivery inlet and delivery outlet. However, when the raw water is injected, the raw water flows to the delivery inlet provided at the bottom of the electrolyte dissolution tank, and the electrolyte adhering to the mesh filter is dissolved. Therefore, the clogging of the flow path can be eliminated, so that the saturation in the electrolyte dissolution tank can be eliminated. The electrolyzed water flows smoothly in the pipe, and the generation of electrolyzed water is not hindered.

  Furthermore, since the raw water is injected from the bottom of the electrolyte dissolution tank when the raw water is injected, the electrolyte deposited on the bottom of the electrolyte dissolution tank can be stirred and easily dissolved.

  According to the means according to claim 6 described in the above (6), there is less saturated electrolyte solution in the electrolyte solution tank by providing the lower limit water level sensor that detects the lower water level of the saturated electrolyte solution in the electrolyte solution tank. In this case, the detection of the lower limit water level sensor stops the generation of electrolyzed water and enables the pipe cleaning operation. Moreover, since the pipe cleaning operation is performed every time the lower limit water level sensor detects, it is possible to prevent the clogging of the pipe line.

  According to the means according to claim 7 described in the above (7), by providing an ammeter for measuring the electrolysis current value in the electrolytic cell, the current value is changed from a predetermined value and determined. When the threshold value is exceeded, it can be recognized that the pipe line in the electrolyte supply flow path is clogged due to the deposition of the electrolyte, and the process can be shifted to the pipe cleaning operation. Accordingly, it is possible to prevent a problem that the pipe line is clogged and a predetermined amount of the saturated electrolyte solution is not supplied into the electrolytic cell, so that alkaline water and acidic water having a predetermined property and pH cannot be generated.

  According to the means according to claim 8 described in (8) above, the removal of scales such as oxides adhering to the alkaline water sampling channel is started following the pipe cleaning operation. Since the removal of scale continuously operates after the pipe cleaning operation, the time for stopping the generation of electrolyzed water as much as possible can be omitted.

According to the means according to claim 9 described in (9) above, the opening and closing valves are provided in the water supply channel and the water supply channel, respectively, so that the channel can be reliably controlled to open and close by a relatively simple method. it can.

  From the above, the technical problems described above can be solved by the means described in the above (1) to (9), and the problems of the prior art can be solved.

  As described above, according to the electrolyzed water generating device having the function of preventing clogging of the piping path according to the present invention, the electrolytic water after the cleaning operation for preventing the piping path from being clogged due to recrystallization of the electrolyte or the like. Even at the time of production, a desired saturated electrolyte solution can be sent to the electrolytic cell to produce electrolyzed water having a predetermined property or pH without any trouble. Furthermore, by sharing a part of each piping such as the water supply channel and the circulation channel, and the circulation channel and the electrolyte solution supply channel, the configuration of the piping is simplified and the cost of the entire apparatus is reduced. It is economical.

The block diagram explaining the whole electrolyzed water generating apparatus provided with the clogging prevention function of the piping path | route which concerns on this invention. (A), (b), (c) is explanatory drawing which demonstrated the detail of the piping washing | cleaning by this invention in order. (D), (e), (f) is explanatory drawing which demonstrated the continuation of the piping washing | cleaning shown to FIG. 2A in order. (G), (h) is explanatory drawing which demonstrated the continuation of piping washing | cleaning shown to FIG. 2B in order. The block diagram explaining the electrical constitution of the device concerning the present invention. The flowchart explaining the process until it transfers to the piping washing operation by this invention from the production | generation of electrolyzed water. The flowchart explaining the process which piping washing | cleaning and scale washing | cleaning by this invention interlock | cooperate. The block diagram explaining the whole electrolyzed water generating apparatus provided with the clogging prevention function of the piping path | route of Claim 3 of this invention. Drawing substitute photo of mesh filter before pipe cleaning. The drawing substitute photograph of the mesh filter after piping washing | cleaning by this invention.

  Hereinafter, an embodiment of an electrolyzed water generating apparatus having a piping path clogging preventing function according to the present invention will be described in detail with reference to the accompanying drawings. These embodiments are preferred specific examples of the present invention, and may have various technically preferable limitations, but the technical scope of the present invention does not particularly limit the present invention. However, the present invention is not limited to these embodiments.

  Hereinafter, an embodiment of an electrolyzed water generating apparatus having a piping path clogging preventing function according to the present invention will be described with reference to the drawings. FIG. 1 is a configuration diagram illustrating the entire electrolyzed water generating apparatus DS according to the present invention. In the figure, reference numeral 10 generally denotes an electrolyte dissolution tank. An electrolyte St (for example, sodium chloride or potassium chloride) that is not dissolved yet accumulates in the electrolyte dissolution tank 10 and tap water. A saturated electrolyte solution WX corresponding to the saturation solubility of the electrolyte is generated by the electrolyte St and the raw water, and the solution WX is sucked into the metering pump 13 described later and stored in the electrolyte dissolution tank 10. Through the delivery inlet 10T provided at the bottom, through the electrolyte solution supply flow path PC configured using a hose, pipe, etc., that is, via the saturated electrolyte solution supply line indicated by the dotted line Y in FIG. It has a mechanism to be delivered to the solution tank 20.

  Further, in the figure, 1 is an inlet for raw water CW such as tap water (see each figure in FIG. 2), PA is a raw water supply flow path for feeding the taken raw water CW into the electrolytic cell 20, and this flow path PA includes A water amount adjusting valve 2, an on-off valve V3 (electromagnetic third on-off valve), and a flow sensor 11 are provided, and a raw water supply flow path PA between the water amount adjusting valve 2 and the third on-off valve V3 is provided in the raw water supply flow path PA. The water supply flow path PB for sending the introduced raw water CW toward the delivery inlet 10T of the electrolyte dissolution tank 10 is branched and connected at the connection portion (third connection portion A3), and further, the flow sensor 11 and the electrolysis are electrolyzed. An electrolyte solution supply flow path PC whose upper end is connected to one end of the water supply flow path PB is branched and connected to the water supply flow path PA between the tanks 20 at a connection portion (fourth connection portion A4).

  In the figure, A1 is a connection part (first connection part) where one end of the electrolyte solution supply flow path PC is connected to the water supply flow path PB. The first connection part A1 and the electrolyte dissolution tank 10 are connected to each other. One end of the water supply flow path PB connecting between the delivery inlets 10T constitutes a first common flow path XY through which both raw water and a saturated electrolyte solution flow.

  Moreover, PCa on the drawing is one end flow path portion of the above-described electrolyte solution supply flow path PC, and the above-described metering pump 13 is provided at an intermediate portion of this one end flow path portion PCa. Further, PD is a circulation channel provided between the inlet 10S of the electrolyte dissolution tank 10 and a connection part (second connection part A2) provided in the one-end flow path part PCa. One end flow path portion PCa constituting a part of the PD is a second common flow path portion through which both the saturated electrolyte solution WX sent to the electrolytic cell 20 and the raw water CW circulating in the circulation flow path PD circulate. In addition to constituting ZY, the passage from the fourth connection portion A4 of the feed water passage PA to the electrolytic cell 20 constitutes a third common passage portion WY through which both the raw water CW and the saturated electrolyte solution WX flow. .

  In addition, the lines X and W shown with the dotted line in the figure are the water supply lines of the raw water CW, and the line Y similarly shown with the dotted line shows the supply line of the saturated electrolyte solution WX.

  On the other hand, upper limit and lower limit water level sensors 10H and 10L for detecting the water level of the electrolyte solution WX in the dissolution tank 10 are attached to the electrolyte dissolution tank 10 described above. The lower limit water level sensor 10L is a sensor that detects the lower limit of the electrolyte solution WX, and each signal output is sent to the control unit 30.

  Further, as the raw water supply switching means, the second on-off valve V2 is provided between the connection parts A1 to A3 of the water supply flow path PB, and the above-described third on-off valve V3 is provided between the connection parts A3 to A4 of the water supply flow path PA. ing.

  The feed water flow path PB is a flow path for feeding raw water CW such as tap water into the electrolyte dissolution tank 10, and opens the second on-off valve V2 and closes the third on-off valve V3 when raw water is injected. . In this state, the raw water CW passes through the water amount adjustment valve 2 that adjusts the flow rate of the raw water CW, and then is sent to the delivery inlet 10T of the electrolyte dissolution tank 10 via the second on-off valve V2.

  The water supply flow path PA is a flow path for feeding the raw water CW such as tap water into the electrolytic bath 20, and when the electrolyzed water is generated, the second open / close valve V2 is closed and the third open / close valve V3 is opened. Control. In this state, the raw water CW passes through the water amount adjustment valve 2 that adjusts the flow rate of the raw water CW, and then branches off along the water supply flow path PB, and the flow sensor 11 that confirms the flow rate of the third open / close valve V3 and the raw water CW is provided. After passing through, it is fed into the electrolytic cell 20.

  The circulation flow path PD is a flow path for circulating the raw water CW injected from the water supply flow path PB and the saturated electrolyte solution WX in the electrolyte dissolution tank 10, and is connected to the connection portion A1 from the middle of the water supply flow path PB. And after passing through the metering pump 13 and the first on-off valve V1, it is connected to the inlet 10S of the electrolyte dissolution tank 10.

  The electrolyte solution supply flow path indicated by the symbol PC is a flow path for feeding the saturated electrolyte solution WX in the electrolyte dissolution tank 10 into the electrolytic tank 20, and the metering pump 13 and the first on-off valve in the circulation flow path PD. It branches in the connection part A2 from between V1, and after passing through the check valve 12 which is a kind of a check valve in the middle, between the flow sensor 11 and the electrolytic cell 20 in the above-mentioned water supply flow path PA. Are connected to the connection part A4. The check valve 12 has a mechanism in which a spring is housed therein and when the pressure (water pressure) exceeds a certain level, the spring pressure is pushed by the pressure (water pressure) to open the internal valve body. It is a valve.

  Next, when the saturated electrolyte solution WX is fed to the electrolytic cell 20, the valve body inside the check valve 12 is opened by the pushing force of the metering pump 13, and the saturated electrolyte solution WX is supplied to the electrolytic cell 20 side. To play a role. (At this time, the first on-off valve V1 is in a closed state.) Further, during the pipe cleaning operation, the first on-off valve V1 is opened. At that time, the raw water CW and the saturated electrolyte solution WX are on the electrolytic cell 20 side. The spring pressure is determined by the balance with the pushing force of the pump 13 so that the valve body inside the check valve 12 is closed. In addition, all the flow paths PA, PB, PC, and PD are configured by pipes configured using hoses, pipes, joints, and the like.

  The electrolytic cell 20 that receives the saturated electrolyte solution WX sent through the above-described electrolyte solution supply channel PC and the raw water CW supplied from the water supply channel PA and electrolyzes it is divided into two chambers by the diaphragm 20T. Electrodes 20A and 20B (anode / cathode) for generating electrolyzed water are provided in each of the partitioned electrode chambers, and the electrolyzer on the cathode side, the electrodes 20A and 20B, and the output are provided even during normal electrolyzed water generation. The polarity of the electrodes 20A and 20B is periodically switched by the control unit 30 so as not to generate scale in the water channels 21 and 22.

  Reference numeral 40 denotes an ammeter for measuring an electrolytic current value in the electrolytic cell 20, and is connected between the electrodes 20 </ b> A and 20 </ b> B and the power supply device 50. When electrolyzed water is generated, if the current value changes from a predetermined value and exceeds a predetermined threshold value (when the ammeter 40 detects an abnormal value), the electrolyte solution supply flow path PC has a current value. It is judged that the clogging has occurred in the pipe, and after generating the electrolyzed water forcibly by issuing a warning or the like, the pipe is washed to remove the clogged pipe.

  Further, the electrolytic current value will be described in detail. When clogging starts in the piping in the electrolyte solution supply flow path PC, the supply of the saturated electrolyte solution into the electrolytic cell 20 gradually decreases, resulting in the electrolytic current value. Is lower than the determined threshold value, it is determined that the piping in the electrolyte solution supply flow path PC is clogged, and the generation of the electrolyzed water is stopped. Further, when the supply of the saturated electrolyte solution in the electrolytic cell 20 is abnormally increased due to an abnormal operation of the metering pump 13, the electrolytic current value becomes higher than a predetermined threshold value and a warning is issued. Force the generation of electrolyzed water to stop.

  In the above configuration, a power supply device 50 is connected to the control unit 30 equipped with a microcomputer, and a metering pump 13 and electromagnetic on-off valves V1, V2, V3, etc. are connected as shown in FIG. , Each of them is configured to be controlled and operated in accordance with instructions from a microcomputer constituting the control unit 30.

Next, generation operation of electrolyzed water will be described.
The generation operation is as follows.
(A) In the electrolyte dissolution tank 10, a saturated electrolyte solution WX obtained by mixing raw water CW such as tap water and electrolyte St is generated to some extent.
(B) The saturated electrolyte solution WX is supplied to the electrolyte solution supply channel PC by the operation of the metering pump 13. (The first on-off valve V1 is closed)
(C) The third on-off valve V3 is controlled to open and the raw water CW is supplied to the water supply passage PA. (The second on-off valve V2 is closed)
(D) At the location where the water supply channel PA and the electrolyte solution supply channel PC merge (near the connection portion A4), the raw water CW supplied from the water supply channel PA and the saturated electrolyte supplied from the electrolyte solution supply channel PC The solution WX is mixed and diluted with electrolyzed water having an electrolyte concentration suitable for electrolysis (for example, about 0.01 to 0.2%).
(E) The electrolyzed water is fed into the electrolytic cell 20 from the inlet of the electrolytic cell 20 to generate electrolytic water. The above procedure is controlled by the control unit 30 described above.

  Next, due to the precipitation phenomenon of electrolyte (for example, sodium chloride, potassium chloride, etc.), the mesh filter 10F at the bottom of the electrolyte dissolution tank 10 (see the photo substitutes in FIGS. 7 and 8), the metering pump 13, and each piping flow path It will be described that PA, PC, PD.

  Normally, undissolved electrolyte is accumulated in a lump at the bottom of the electrolyte dissolution tank 10 that stores the saturated electrolyte solution WX. For this reason, a mesh-like filter 10F as shown in the drawings in FIG. 7 and FIG. 8 is attached to the delivery inlet 10T provided at the bottom of the electrolyte dissolution tank 10, so that the undissolved electrolyte flows into the electrolyte solution supply flow. This prevents it from flowing into the road PC.

  However, since the mesh of the filter 10F is composed of a mesh on a fine lattice, the deposited electrolyte easily adheres due to a temperature decrease based on environmental changes, and is a portion that is easily clogged. Similarly, in the inside of the metering pump 13 and the inside of the on-off valve V1 or the check valve 12, the electrolyte deposited in a gap or the like (not shown) of the mechanism part of the valve body that opens and closes easily adheres and accumulates and is easily blocked. It is a place.

  Next, the pipe cleaning operation for preventing the electrolyte solution tank 10 delivery inlet 10T, the metering pump 13, and the on-off valve V1 from being clogged will be described.

  When the generation of the electrolyzed water is started, the saturated electrolyte solution WX in the electrolyte dissolution tank 10 gradually decreases, and finally the generation of the electrolyzed water is stopped immediately after detecting the ON of the lower limit water level sensor 10L or after a certain time, 3. Closes the on-off valve V3.

  Next, the second on-off valve V2 is controlled to open, and the raw water CW is injected from the water supply passage PB into the electrolyte dissolution tank 10 until the upper limit water level sensor 10H is turned on. (After water injection, the second on-off valve V2 is controlled to be closed and the third on-off valve V3 is kept closed.) In particular, electrolyte is often deposited at the delivery inlet 10T of the electrolyte solution tank 10. In addition, by flowing the raw water CW in the direction opposite to the flow of water that normally generates electrolyzed water, there is an effect of dissolving and diffusing the deposited electrolyte to remove clogging.

  Next, the first on-off valve V1 is controlled to open, the metering pump 13 is operated at a high speed, and the raw water CW held in the first common flow path XY and further the saturated electrolyte solution WX in the electrolyte dissolution tank 10 are supplied. It sends out to circulation channel PD. First, the raw water CW reserved in the first common flow path XY passes through the inside of the metering pump 13 and the first on-off valve V1, so when the electrolyte adheres to the internal valve body, The electrolyte is diffused and dissolved by the raw water CW, so that the blockage can be removed.

  Thereafter, by operating the metering pump 13 at a high speed for a certain time, the saturated electrolytic water WX in the electrolyte dissolution tank 10 immediately circulates in the circulation flow path PD. The pipe cleaning operation is completed by operating the metering pump 13 at a high speed for a certain period of time and then stopping and controlling the first on-off valve V1 to close. Thereafter, electrolyzed water can be generated as necessary. In that case, the third on-off valve V3 must be controlled to open. By periodically performing the above-described pipe cleaning operation, it is possible to prevent the respective pipes from being blocked. The above pipe cleaning operations are all controlled by the control unit 30.

  As described above, an electrolyte precipitation phenomenon occurs due to a decrease in temperature of the saturated electrolyzed water based on the environmental change from the delivery inlet 10T of the electrolyte dissolution tank 10 to the inside of the metering pump 13, and as a result, the pipeline is blocked, Although there was a problem that hinders the generation of water, the pipe cleaning operation dissolves and separates the deposits in the pipe so that the saturated electrolyzed water flows smoothly, which hinders the generation of electrolyzed water. Nothing will happen.

  In addition, the flow path from the connection portion A2 (see FIG. 1), which is a part of the electrolyte solution supply flow path PC, to the connection to the water supply flow path PA through the check valve 12 at the connection portion A4 is as long as possible. By shortening, the check valve 12 is prevented from being blocked. Moreover, it is desirable that the piping of the first common flow path portion XY be made somewhat long. The reason for this is that due to the long piping, the raw water CW injected into the piping can be sufficiently stored, and the electrolyte deposited by the raw water CW can be quickly dissolved during the pipe cleaning operation after the raw water injection. Because you can.

Next, the mechanism of the pipe cleaning operation will be described in detail with reference to (a) to (h) described in each of FIGS. 2A, 2B, and 2C.
(A) of FIG. 2A is a figure of the state which the lower limit water level sensor 10L detected and the production | generation of electrolyzed water stopped. When the generation of the electrolytic water is started, the saturated electrolyte solution WX in the electrolyte dissolution tank 10 is supplied to the electrolytic tank 20 through the electrolyte solution supply flow path PC, so that the water level of the saturated electrolyte solution WX in the electrolyte dissolution tank 10 gradually increases. Finally, the lower limit water level sensor 10L is detected.

  Even after detection by the lower limit water level sensor 10L, since a certain amount of the saturated electrolyte solution WX remains in the electrolyte dissolution tank 10, the generation of the electrolytic water can be continued, and after a certain period of time (the saturated electrolyte solution WX It is possible to stop the generation of electrolyzed water after a certain amount of time), or after a certain operation such as, for example, sounding an alarm. In this state, the first on-off valve V1 and the second on-off valve V2 are closed, and the metering pump 13 is stopped.

(B) of FIG. 2A is a figure of the state which inject | poured raw | natural water CW from the water supply flow path PB to the electrolyte dissolution tank 10 by opening-controlling the 2nd on-off valve V2.
(C) of FIG. 2A is a figure of the state which continues inject | pouring the raw water CW from the water supply flow path PB to the electrolyzed water dissolution tank 10 by making the 2nd on-off valve V2 into an open state continuously. The raw water CW is injected into the electrolyte dissolution tank 10 from the delivery inlet 10T at the bottom of the electrolyte dissolution tank 10.

Next, (d) of FIG. 2B shows a state in which when the water level in the electrolyte dissolution tank 10 rises and the upper limit water level sensor 10H detects, the second on-off valve V2 is closed and injection of the raw water CW is finished. It is. In this state, the raw water CW injected from the water supply flow path PB remains (stores) in the first common flow path portion XY.
FIG. 2B (e) shows that the raw water CW remaining (stored) in the first common flow path portion XY is controlled with respect to the circulation flow path PD by controlling the opening of the first on-off valve V1 and operating the metering pump 13 at high speed. It is a figure of the state which started the circulation.
(F) of FIG. 2B is a state in which the above circulation is continued, and shows a state in which the raw water CW passes through the first on-off valve V1. After passing the raw water CW, the saturated electrolyte solution WX in the electrolyte dissolution tank 10 passes. Further, in the first on-off valve V1 and the inside of the metering pump 13, the electrolyte deposited in the gap of the mechanism part of the valve body to be opened and closed adheres and accumulates, and is easily clogged. Since the electrolyte deposited by the circulation of CW is dissolved, it leads to prevention of clogging.

Next, (g) in FIG. 2C shows that the raw water CW goes around the circulation channel PD and flows into the electrolyte dissolution tank 10, and then the saturated electrolyte solution WX is fed into the circulation channel PD by the metering pump 13 for a predetermined time. It is circulating.
(H) of FIG. 2C is a state in which the first on-off valve V1 is closed and the metering pump 13 is stopped after a predetermined time has elapsed, that is, the circulation is finished. Since the saturated electrolyte solution WX remains (stores) in the circulation channel PD, the saturated electrolyte solution WX is sent to the electrolytic cell 20 during the subsequent electrolysis generation, which hinders the electrolyzed water having a predetermined property or pH. Can be generated.

Next, the steps from the generation of electrolyzed water to the pipe cleaning operation will be described using a flowchart with reference to FIG.
When the generation start switch (not shown) is turned on in the first step S1, the process proceeds to the next step S2 to start generation of electrolyzed water.
In the next step S3, the second on-off valve V2 is closed and the third on-off valve V3 is opened, and in the next step S4, the metering pump 13 is operated.

In the next step S5, it is determined whether or not the lower limit water level sensor 10L that detects the lower limit water level in the electrolyte dissolution tank 10 is detected. If YES (if the water level falls below the lower limit), the process proceeds to step S9. If NO, the process proceeds to step S6.
In the next step S6, the electrolysis current value A in the electrolytic cell 10 is measured by the ammeter 40, and the process proceeds to the next step S7 where the measurement value A is compared with the reference value, and the measurement value A is within the reference value range ( If YES, the process returns to step S5, and if the measured value A deviates from the reference value range (NO), the process proceeds to step S10. The above-described reference value and reference value range are calculated by the CPU shown in FIG. 4 for each setting depending on the settings of pH, water amount, power consumption, etc. of desired electrolyzed water determined by operating the electrolyzed water generator. Is stored in the memory.

  In the next step 9, it is determined whether the detection of the lower limit water level sensor 10 </ b> L has passed a certain time T <b> 1 or after a certain operation. If YES, the process proceeds to step 10, and if NO, the process of step 9 is performed. repeat.

  Here, the operation of step 9 will be described. When the generation of electrolyzed water is started, the saturated electrolyte solution WX gradually starts to decrease, and finally the lower limit water level sensor 10L detects it. Then, the saturated electrolyte solution WX in the electrolytic bath 20 starts to decrease, the water level falls below the lower limit, and even after the lower limit water level sensor 10L detects, a certain amount of the saturated electrolyte solution WX remains in the electrolytic dissolution bath 10. Water generation is possible, however, the operation of the metering pump 13 is stopped after the lapse of a certain time T1, or the generation of electrolyzed water is stopped after a certain operation such as sounding an alarm, for example. Yes.

In the next step 10, the operation of the metering pump 13 is stopped, the process proceeds to the next step 11, the generation of the electrolyzed water is stopped, and the process proceeds to the next step S 12. In the next step S12, the second on-off valve V2 is controlled to open, the third on-off valve V3 is controlled to close, and the raw water CW is supplied into the electrolyte dissolution tank 10.
In the next step S13, it is determined whether the upper limit water level sensor 10H that detects the upper limit water level in the electrolyte dissolution tank 10 is detected. If YES (the water level exceeds the upper limit), the process proceeds to the next step S14. Then, the supply of the raw water is stopped by controlling the second on-off valve V2 to be closed, but in the case of NO, step S13 is continuously monitored.

In the next step S15, the first on-off valve V1 is controlled to open, and in the next step S16, the metering pump 13 is operated at a high speed to circulate the raw water CW and the saturated electrolyte solution WX in the circulation flow path PD. The cleaning operation is performed, and the process proceeds to the next step S17.
In the next step S17, it is determined whether the high-speed operation time of the metering pump 13 has elapsed a fixed time T2. If YES, the process returns to the next step S2 to start generation of electrolyzed water again. The process of S17 is repeated.

  The fixed time T2 during the pipe cleaning operation may be determined by the amount of flowing water due to the high-speed operation of the metering pump 13, but the raw water CW first circulates in the circulation channel PD, and then the saturated electrolyte solution WX is sent. Since it is only necessary to fill the water flow path PB once, a time of about several seconds may be set in advance.

  Next, in order to confirm the effect of the pipe cleaning operation, a photograph of the state of the mesh filter 10F attached to the delivery inlet 10T of the electrolyte dissolution tank 10 is shown in FIG. 7 as a substitute for drawing 1 and as a substitute for drawing 2 in FIG. It is. In the drawing substitute photograph 1 of FIG. 7 taken before the pipe cleaning operation, the recrystallized electrolyte salt was adhered over almost the entire surface of the mesh filter 10F, and the flow path was blocked. This is because the salt was recrystallized and then multiplied to create the worst condition.

  Even in such a worst state, in the substitute photograph 2 of FIG. 8 taken after the pipe cleaning operation, the salt crystals, which are electrolytes attached to the mesh filter 10F, are dissolved and separated by cleaning and remain. You can see that they are not. From this result, it is possible to prevent the formation of electrolyte crystals by periodically performing the pipe cleaning operation, and even if the crystals grow greatly, the electrolyte is dissolved by the pipe cleaning operation to prevent the clogging of the pipe. It could be confirmed.

  FIG. 4 is a block diagram illustrating the electrical configuration of the control unit 30 including the control device used in the present invention, and the control device includes a CPU 31A. In the figure, reference numeral 31B denotes a flow path switching timing, a switching operation program for the first, second and third on-off valves V1, V2 and V3, or first and second water path switching electromagnetic valves 21K and 22K. A memory 31D for storing various data and programs required by the present invention, such as a switching operation program, and an interface connected between the CPU 31A and the memory 31B of these control devices via a bus 31C.

  The interface 31D includes the first, second, and third on-off valves V1, V2, and V3, the first and second water passage switching electromagnetic valves 21K and 22K, the water amount adjusting valve 2, and the like. Flow sensor 11, upper limit water level sensor 10H, lower limit water level sensor 10L, metering pump 13, alarm unit 10Z that operates when an error occurs in the system, electrode reversing unit 51 for reversing electrodes 20A and 20B, and display unit 33 1, the input unit 34, etc., to which the components of the present invention shown in FIG. 1 (partially omitted) are connected, and are controlled by the control unit 30 according to the program stored in the memory 31B. It consists of.

Next, a structure that links the pipe cleaning operation and the scale removal described in claim 8 will be described.
First, in a diaphragm membrane electrolyzed water generator DS capable of collecting acidic water and alkaline water, respectively, a diaphragm 20T and electrodes 20A and 20B on the side where alkaline water is generated and circulated during electrolyzed water generation operation. Furthermore, there is a harmful effect that the component (scale) in which calcium and magnesium compounds contained in raw water such as tap water are deposited adheres to the water channel. However, the failure of the diaphragm 20T and the electrodes 20A, 20B due to the adhesion of the scale, A configuration for preventing blockage of the water channel will be described below.

  As shown in FIG. 1, reference numeral 20 denotes an electrolytic cell that receives a saturated electrolyte solution WX sent through an electrolyte solution supply flow path PC and raw water CW supplied from a feed water flow path PA and electrolyzes it. , 20R... Is a power line that supplies an electrolytic current to the electrolytic cell 20, and 50 is a power supply device to which these power lines 20R are connected, and one of the power lines 20R is provided with an ammeter 40 for measuring an electrolytic current value. In addition, both the ammeter 40 and the power supply device 50 are connected to the control unit 30.

  The inside of the electrolytic cell 20 is partitioned by a diaphragm 20T into one electrolytic chamber provided with one electrode 20A or 20B and the other electrolytic chamber provided with the other electrode 20B or 20A. When the electrolysis chamber of the first electrode acts as a cathode chamber with a negative electrode and the other electrolysis chamber acts as an anode chamber with a positive electrode, electrolysis produces alkaline water with a cleaning action in one of the electrolysis chambers. In the other electrolysis chamber, acid water having a bactericidal action is generated.

  Further, 22E and 22F are electrolyzed water feed ports provided on the upper surfaces of the one electrolysis chamber and the other electrolysis chamber, and the lower ends of the one and other water feed channels 21 and 22 communicate with these water feed ports 22E and 22F. It is connected. Further, in the drawing, reference numerals 21K and 22K denote a first waterway switching electromagnetic valve and a second waterway switching valve, each of which has a water inlet attached to the tip of the one water supply path 21 and the other water supply path 22, respectively. Each of the water path switching solenoid valves 21K and 22K is connected to one of the outlets on the outlet side that is open to each of the water discharge path 21A of the alkaline water and the water discharge path 22A of the acidic water. The root ends are connected to each other, and the generated alkaline water and acidic water are supplied to the alkaline water sampling port 21X via the alkaline water sampling channel 21A and to the acidic water sampling port 22X via the acidic water sampling channel 22A. While supplying water, the other water supply ports are respectively arranged in parallel between the acidic water sampling channel 22A and the alkaline water sampling channel 21A arranged opposite to each other using the first and second bypass channels 25, respectively. The unit is connected in communication. Furthermore, in the figure, 23 and 24 are an alkaline water tank and an acidic water tank.

  In the above-described configuration, the above-described power supply device 50 and the relay circuit as the electrode reversing unit 51 are connected to the control unit 30 on which the CPU 31A shown in FIG. Each of the on-off valves V1 to V3 and the first and second waterway switching electromagnetic valves 21K and 22K are connected, and each of them is controlled according to the instruction of the CPU 31A constituting the control unit 30. Yes.

  In addition, the power supply device 50 is connected to one electrode 20A and the other electrode 20B of the electrolytic cell 20 via the control unit 30 described above, so that acidic water is generated in one electrolytic chamber that becomes, for example, an anode chamber by electrolysis. Is generated, and the alkaline water is generated in the other electrolysis chamber serving as the cathode chamber.

  The above-described relay circuit as the electrode reversing unit 51 constituting the electrode reversing unit 50X is made alkaline by switching the polarity of one of the electrolytic cells 20 and the other electrode 20A, 20B at a predetermined time interval by a relay switch. This is an electrode switching relay circuit that can supply water and acidic water alternately to one outlet 22E and the other outlet 22F to prevent the occurrence of the scale described above.

  The switching of the electrodes 20A and 20B by the relay circuit as the electrode reversing unit 51 is performed according to a program stored in the memory 31B (see FIG. 4) of the control unit 30, and in the illustrated embodiment, The first and second waterway switching solenoid valves 21K and 22K are switched in synchronism with the switching of the electrodes 20A and 20B, so that the same acidic water or alkaline water as the electrolyzed water that has been discharged up to now can be used. It is comprised so that it may send into the water sampling ports 21K and 22K.

  In the above configuration, the relay circuit as the electrode reversing unit 51 switches the polarities of the electrodes 20A and 20B and the first and second waterway switching electromagnetic valves 21K and 22K in accordance with a command from the control unit 30. Even if the polarity of the electrodes 20A and 20B of the electrolytic cell 20 is switched during the electrolysis operation to switch the path to the first and second bypass water channels 25, the same alkaline water and acidic water as before are used for each sampling channel. Since it can continue to flow into 21A and 22A, the electrolyzed water discharged and the electrolyzed water stored are not mixed in the middle of a washing operation.

  However, if electrolyzed water is generated for a certain period of time, scale will adhere to the piping (alkaline water sampling channel) that always supplies alkaline water, and if they are left unattended, generation will be hindered. Therefore, it is necessary to periodically remove the scale in the piping.

  In the above description, the necessity of scale removal has been described. In claim 8, scale removal and pipe cleaning operation are linked, and the linked process will be described using the flowchart of FIG.

  When the scale removal switch (not shown) is turned ON in the first step S31, the process proceeds to the next step S32, where it is determined whether electrolyzed water is being generated. If NO, the process proceeds to the next step S35, where YES is determined. In this case, the process proceeds to the next step S33 to stop the operation of the metering pump 13, and then proceeds to the next step S34 to stop the generation of electrolyzed water, and proceeds to the next step S35.

  In the next step S35, it is determined whether or not the upper limit water level sensor 10H that detects the upper limit water level in the electrolyte dissolution tank 10 has been detected. If YES, the process proceeds to the next step S36 and the first on-off valve V1 is set. Open control is performed and the second and third open / close valves V2 and V3 are closed. If NO, the process proceeds to step S37, the second open / close valve V2 is opened, and the third open / close valve V3 is closed. It returns to step S35 and repeats a process. (Raw water CW is supplied from the water supply channel PA)

  In the next step S38, the metering pump 13 is operated at a high speed. In step S39, the operation time of the metering pump 13 is a fixed time T2 (here, for several seconds, the raw water CW and the saturated electrolyte solution WX are supplied to the circulation channel PD). It is determined whether or not the pipe cleaning operation has been performed). If YES, the process proceeds to the next step S40, and if NO, the process returns to step S39 to repeat the process.

  In the next step S40, the first on-off valve V1 is controlled to be closed, and in the next step S41, the operation speed of the metering pump 13 is returned from the high speed operation to the normal operation, and the process proceeds to the next step S42. Start generation.

  In the next step S43, the first and second water channel switching solenoid valves 21K and 22K are switched to allow acidic water to flow in the alkaline water sampling channel 21 and alkaline water to flow in the acidic water sampling channel 22, and in particular, alkaline water sampling. The scale of the water channel 21 is removed.

  In the next step S44, it is determined whether or not the time for descaling has passed a certain time T3 (here about 10 minutes). If YES, the process proceeds to the next step S45 to stop the operation of the metering pump 13, If NO, the process returns to step S44 to repeat the process. In the next step S46, the first and second waterway switching electromagnetic valves 21K, 22K are switched back to the original state, and in the next step S47, the generation of the electrolyzed water is stopped, and the flow ends.

  As described above, when the scale removal is completed, the scale of the water supply path for supplying the electrolyte and the alkaline water in the pipe of the electrolyte solution supply flow path PC is cleanly removed, and the electrolysis water generation standby state is entered. .

  Therefore, by performing the pipe cleaning operation before removing the scale, the electrolyte solution supply flow path PC is clogged, so that the saturated electrolyte solution WX is not supplied to the electrolytic cell 20 and electrolysis water cannot be generated. The problem that the scale cannot be removed can be solved. In addition, since the raw water CW is always supplied to the electrolyte dissolution tank 10 until the upper limit water level sensor 10H detects it before the pipe cleaning operation, the electrolyte is continuously moved to the scale removal after the pipe cleaning operation. There is no extra operation in which the water level in the dissolution tank 10 detects the lower limit and the scale removal operation is interrupted to supply the raw water CW.

  Further, when the scale removal switch (not shown) is turned on, scale removal in the alkaline water sampling channel 21 is performed after the pipe cleaning operation is automatically completed in the control unit. Can be omitted. Needless to say, the pipe cleaning operation may be performed after the scale is removed, or the pipes may be operated independently from each other.

  Next, the configuration of the third aspect will be described with reference to FIG. It should be noted that only portions different from those in FIG. 1 are described here, and other portions are denoted by the same reference numerals and are the same as those in FIG. 1, and description thereof is omitted.

  In this embodiment, a fourth switching valve, that is, a three-way valve V4, is provided at a branch point (connecting portion A2) between the circulation channel PD and the electrolyte solution supply channel PC. At the time of pipe cleaning operation, the three-way valve V4 is switched and controlled to flow the raw water CW and the saturated electrolyte solution WX to the circulation flow path PD. When the electrolytic water is generated, the three-way valve V4 is switched and controlled to supply the electrolyte solution. Control is performed so that the saturated electrolyte solution WX flows to the path PC side. Thus, by using the three-way valve V4 for the flow path switching means, the number of parts can be reduced and the apparatus itself can be miniaturized.

DS Electrolyzed Water Generation Device 1 Raw Water Intake CW Raw Water 2 Water Volume Adjustment Valve 10 Electrolyte Dissolution Tank 10F Mesh Filter 10T Outlet 10S Inlet WX Saturated Electrolyte Solution St Electrolyte 11 Flow Sensor 12 Check Valve as Check Valve 13 Metering Pump 20 Electrolysis Tanks 20A, 20B Electrodes 21, 22 Water supply channels 21K, 22K First and second water channel switching solenoid valves 30 Control unit 40 Ammeter 50 Power supply device PA Raw water supply channel PB Raw water supply channel PC Electrolyte solution supply channel PCa One end flow path part PD Circulation flow path V1, V2, V3 On-off valve V4 Three-way valve XY First common flow path part ZY Second common flow path part WY Third common flow path part A1, A2, A3, A4 Connection Part X, W Raw water supply line Y Saturated electrolyte solution supply line

Claims (9)

This is an electrolyzed water generator configured to generate electrolyzed water by feeding the saturated electrolyte solution taken out from the electrolyte dissolving tank into the electrolyzer while diluting it with raw water such as tap water to an electrolyte concentration suitable for electrolysis. And
A part of an electrolyte solution supply channel for sending the saturated electrolyte solution taken out from the electrolyte dissolution tank to the electrolytic cell by a pump; and a part of a circulation channel for circulating the saturated electrolyte solution to the electrolyte dissolution tank by the pump. Is formed with a common flow path portion having a common flow path,
When the flow path opening / closing means is provided in the middle of the electrolyte solution supply flow path and the circulation flow path, and the flow path opening / closing means of the circulation flow path is controlled to switch, the flow path opening / closing means provided in the electrolyte solution supply flow path While switching control, the saturated electrolyte solution is sent to the raw water supply flow path and diluted, and the diluted saturated electrolyte solution is sent to the electrolytic cell to generate electrolytic water,
When switching control of the flow path opening / closing means of the circulation flow path is performed, the flow path opening / closing means of the supply flow path is closed and the pump circulates the saturated electrolyte solution taken out from the electrolyte dissolution tank into the circulation flow path. The clogged piping path is characterized in that raw water or / and a saturated electrolyte solution remaining in the common flow path portion are sent to the electrolyte dissolution tank to clean the inside of the common flow path portion. Electrolyzed water generator with a prevention function. The electrolyte dissolution tank is provided with a delivery inlet for delivering a saturated electrolyte solution, and a reception inlet for dissolving the recrystallized electrolyte and returning the solution to the electrolyte dissolution tank. Are connected to each other to form a circulation flow path for circulating the saturated electrolyte solution, and the raw water intake is connected to the delivery inlet to inject the raw water into the delivery inlet of the electrolyte dissolution tank. As a first water supply flow path, a raw water supply flow path for injecting raw water into the electrolytic cell by connecting the raw water intake port and the electrolytic cell in communication with each other,
The delivery inlet and the electrolytic cell are connected in communication to form an electrolyte solution supply channel, and the circulation channel, the raw water supply channel, and a part of the electrolyte solution supply channel that is continuous from the delivery inlet A first common flow path portion that shares the same, and a portion that continues from the first common flow path portion of the electrolyte solution supply flow path and the circulation flow path is shared to form a second common flow path While forming a third common flow path portion by sharing a part of the raw water supply flow path and the electrolyte solution supply flow path that are continuous from the electrolytic cell,
In addition, the pump is provided in the second common flow path portion, and a circulation flow path is provided between the circulation flow path and the second common flow path portion of the electrolyte solution supply flow path to the receiving port. A first on-off valve serving as a first channel opening / closing means for controlling the opening / closing of the electrolyte solution is provided between the second common channel portion and the third common channel portion of the electrolyte solution supply channel. A check valve is provided as a channel opening / closing means that is opened by the water pressure of the water, and in the vicinity of the raw water intake, the raw water supply channel and the raw water supply channel are switched, and both the water supply and water supply are stopped. Second and third on-off valves are provided,
With the first on-off valve opened, the raw water remaining or stored in the first common flow path section by the pump or / and the saturated electrolyte solution in the electrolyte dissolution tank are circulated through the circulation flow path. 2. The electrolyzed water generating device having a piping path clogging prevention function according to claim 1, wherein a piping cleaning operation for cleaning the inside of the piping of the circulation flow path is possible. The electrolyte dissolution tank is provided with a delivery inlet for delivering a saturated electrolyte solution and a reception inlet for dissolving the recrystallized electrolyte and returning the solution to the electrolyte dissolution tank, between the delivery inlet and the reception inlet. Are connected to each other to form a circulation flow path for circulating the saturated electrolyte solution, and a raw water feed flow path for injecting raw water into the delivery inlet by communicating between the raw water intake and the delivery inlet, The raw water intake and the electrolytic cell are connected in communication to form a raw water supply channel for injecting raw water into the electrolytic cell,
The discharge inlet and the electrolytic cell are connected in communication to form an electrolyte solution supply flow path, and the circulation flow path, the raw water supply flow path, and a part of the electrolyte solution supply flow path that is continuous from the discharge inlet are shared. A first common flow path is formed, and a part of the electrolyte solution supply flow path and the circulation flow path that are continuous from the first common flow path is shared to form a second common flow path. On the other hand, a part of the raw water supply flow channel and the electrolyte solution supply flow channel continuous from the electrolytic cell is shared to form a third common flow channel portion,
In addition, the second common flow path portion is provided with the pump, and a branch point between the second common flow path portion and the reception port of the circulation flow path and the electrolyte solution supply flow path is A flow path switching three-way valve is provided as the first flow path opening / closing means, and second and third open / close positions for controlling the switching between the raw water supply flow path and the raw water supply flow path in the vicinity of the raw water intake port. A valve is provided to control the opening and closing of the three-way valve for switching the flow path, and the raw water remaining or stored in the first common flow path portion by the pump or the saturated electrolyte solution in the electrolyte dissolution tank is circulated. The piping path clogging prevention function according to claim 1, wherein the flow path cleaning operation is performed so as to circulate in the flow path and clean the inside of the electrolyte solution supply flow path. Electrolyzed water generator.   At the time of the flow path cleaning operation, the second and third on-off valves are switched and controlled, and after the raw water is injected into the electrolyte dissolution tank from the raw water supply flow path, the injection is stopped, and subsequently, the flow path After switching and controlling the first on-off valve or the three-way valve as the on-off means, the raw water remaining in the first common flow path portion is sent out to the circulation flow path by the pump, and then in the electrolyte dissolution tank The piping path according to claim 1, 2 or 3, wherein a saturated electrolyte solution is circulated through the circulation path to wash the common flow path and the piping in the circulation path that follows the common flow path. Electrolyzed water generator with a function to prevent clogging.   The said delivery inlet of the said electrolyte dissolution tank is provided in the bottom part of the said electrolyte dissolution tank, and the mesh filter is attached to this delivery inlet, The Claim 1, 2, 3 or 4 characterized by the above-mentioned. An electrolyzed water generator having a function of preventing clogging of the piping path.   In the electrolyte solution tank, a water level detection means for detecting the lower water level of the saturated electrolyte solution is provided, and after the low water level is detected, after a predetermined time or a predetermined operation, the generation of the electrolytic water is stopped, 6. The electrolyzed water generating apparatus having a piping path clogging prevention function according to claim 1, wherein the control is performed so as to switch to the flow path cleaning operation.   An ammeter for measuring the electrolysis current value in the electrolytic cell is provided, and when the ammeter detects an abnormal value, the generation of electrolyzed water is stopped and control is performed to switch to the flow path cleaning operation. The electrolyzed water generating apparatus provided with the clogging prevention function of the piping path of Claim 1, 2, 3, 4, 5 or 6.   The polarity of the applied voltage applied to each electrolysis chamber of the electrolyzer is switched, or the first and second waterway switching electromagnetics provided in each water supply channel of alkaline water and acidic water provided in the electrolyzer. The scale removing operation for removing oxides and the like attached to the alkaline water sampling channel is controlled continuously after the pipe cleaning operation by controlling the valve. The electrolyzed water generating apparatus provided with the clogging prevention function of the piping path of 3, 4, 5, 6 or 7.   The said raw | natural water supply switching means is comprised by the 2nd on-off valve provided in the said raw | natural water water supply flow path, and the 3rd on-off valve provided in the said raw | natural water water supply flow path, The Claim 1 or 2 characterized by the above-mentioned. An electrolyzed water generating device having a function of preventing clogging of the described piping path.