JP4881580B2 - Electrolyzed water generator - Google Patents

Description

  The present invention relates to an electrolyzed water generating apparatus for electrolyzing electrolyzed water to generate electrolyzed water.

As one type of electrolyzed water generating device, an electrolyzer that electrolyzes electrolyzed water, a storage tank that receives and stores electrolyzed water generated in the electrolyzer, and a storage tank disposed in the storage tank. A water level sensor for detecting a predetermined level of preset water volume (set water level) stored in the tank, and the level of the electrolyzed water stored in the storage tank is greater than the set water level; There is an electrolyzed water generating device that employs an electrolysis operation system in which electrolyzed water generation operation is resumed when the water level sensor detects a decrease , and electrolyzed water is replenished in the storage tank (see Patent Document 1). reference).

In the electrolyzed water generating apparatus of this type, the electrolyzed water generated in the electrolyzed water generating operation is sequentially introduced and stored in the storage tank, but the electrolyzed water stored in the storage tank When the water level reaches the set water level, the water level sensor functions to detect that the level of the electrolyzed water in the storage tank has reached the set water level and stop the electrolyzed water generation operation. That is, the stop and restart of the electrolyzed water generation operation in the electrolyzed water generator of this type are controlled by the operation at the operating point water level (ON / OFF operation) of the water level sensor.
JP 2000-5750 A

  By the way, in the electrolyzed water generating device of this type, the electrolyzed water stored in the storage tank is consumed by the user by dispensing a desired amount from the storage tank. At this time, the electrolytic water is stored in the storage tank. Since the water level of the electrolytically generated water drops at a stretch, the electrolytically generated water generating operation is immediately resumed. As a result, the generated electrolyzed water is sequentially introduced into the storage tank. As a result, the water level of the electrolyzed water stored in the storage tank gradually rises and reaches the set water level. The water generation operation will be stopped. In this case, the electrolyzed water level in the storage tank is near the operating point of the water level sensor, and if the electrolyzed water level fluctuates up and down even slightly, the water level sensor repeats the operation (ON / OFF operation). In addition, the generation operation of electrolytically generated water is repeatedly performed in a short time.

  In the electrolysis operation of the electrolyzed water generating device of this type, in the initial generation of the electrolyzed water, electrolyzed water having a quality lower than the set characteristic is generated, and the quality of the set characteristic is increased over time. It becomes electrolyzed water. For this reason, when the electrolyzed water generation operation is repeatedly performed in a short time, a large amount of electrolyzed water having a lower quality than the set characteristics is replenished, and as a result, the electrolyzed water is stored in the storage tank. There is a possibility that the electrolytically generated water that is set is not the electrolytically generated water having sufficient characteristics. The object of the present invention is to address such problems.

The present invention relates to an electrolyzed water generating apparatus. An electrolyzed water generating apparatus to which the present invention is applied includes an electrolyzer that electrolyzes water to be electrolyzed, a storage tank that receives and stores electrolyzed water generated in the electrolyzer, and is disposed in the storage tank. And a water level sensor that detects a predetermined level of preset water volume (set water level) of the electrolyzed water stored in the storage tank, and the level of the electrolyzed water stored in the storage tank is When the water level sensor detects that the water level has fallen below the set water level, the electrolyzed water generation operation is resumed, and the electrolyzed water generating device adopts an electrolysis operation system in which the electrolyzed water is replenished in the storage tank. is there.

Therefore, in the electrolyzed water generating apparatus according to the present invention, the electrolyzed water generating operation resumed when the electrolyzed water in the storage tank is lowered from the set water level is the electrolyzed water in the storage tank. The water level sensor detects that the water level of the water has reached the set water level, and the ratio of the electrolytically generated water having stable characteristics compared to the electrolytically generated water having unstable characteristics generated at the beginning of the electrolysis operation is This is characterized in that the process is continued until a preset time (set time ) has passed so as to increase sufficiently.

  In the electrolyzed water generating apparatus according to the present invention, a float switch that operates at a set water level of electrolyzed water can be employed as the water level sensor disposed in the storage tank, and the electrolyzed water that is resumed. The set time of the generating operation can be set to five times or more of the time during which electrolyzed water having unstable characteristics at the beginning of the electrolysis operation is generated. Further, in the electrolyzed water generating apparatus according to the present invention, when the supply of power from the power source is temporarily stopped during the electrolyzed water generating operation and the electrolyzed water generating operation is temporarily stopped, the power When the supply is restored, the production operation of electrolyzed water once stopped can be restored.

  The electrolyzed water generating device of this type installed at a desired location is in a state that can be used by the user when the power is turned on, and a predetermined amount of electrolyzed water is stored in the storage tank. Has been. For this reason, when the user performs an operation for pouring electrolyzed water (for example, a switch operation) in order to collect a desired amount of electrolyzed water, the electrolyzed water contained in the storage tank is sequentially poured out. At this time, the water level of the electrolyzed water in the storage tank drops at a stretch. For this reason, the water level sensor arranged in the storage tank detects that the electrolytic water level in the storage tank has dropped below the set water level, and functions to restart the electrolytic water generation operation. The production operation of electrolyzed water is immediately resumed. As a result, the generated electrolyzed water is sequentially introduced into the storage tank and replenished. As a result, the level of the electrolyzed water stored in the storage tank gradually rises and reaches the set water level. The generation operation of generated water will be stopped.

  In this case, the electrolyzed water level in the storage tank is near the operating point of the water level sensor, and if the electrolyzed water level fluctuates up and down even slightly, the water level sensor repeats the operation (ON / OFF operation). In addition, the generation operation of electrolytically generated water is repeatedly performed in a short time. However, in the electrolyzed water generating apparatus according to the present invention, the electrolyzed water generation operation resumed when the electrolyzed water in the storage tank drops below the set water level, and the level of the electrolyzed water in the storage tank is The set time has elapsed so that the ratio of electrolyzed water with stable characteristics is sufficiently high compared to the electrolyzed water with unstable characteristics that is detected by the water level sensor and generated at the beginning of electrolysis operation. I try to continue until.

  In other words, in the electrolyzed water generating apparatus according to the present invention, the restarted electrolyzed water generation operation is set to continue for a predetermined time, and the set time is unstable generated at the beginning of electrolysis operation. It is set as the time when the ratio of the electrolytically generated water having the stable characteristics is sufficiently larger than the electrolytically generated water having the characteristics. For this reason, it is possible to prevent repeated generation of electrolyzed water in a short time due to frequent fluctuations in the level of electrolyzed water in the storage tank. As a result, in the electrolytically generated water that is replenished to the storage tank by a single restart operation, the proportion of the electrolytically generated water having a stable characteristic is sufficiently increased. Therefore, the electrolytically generated water stored in the storage tank is It becomes the electrolytically generated water with sufficient characteristics set.

  In addition, in the conventional electrolyzed water generating device of this type, when the supply of power from the power source is temporarily stopped due to, for example, a power failure during the electrolyzed water generating operation, the electrolyzed water is generated by releasing the power failure. Even if the supply of electric power to the apparatus is restored, the operation of generating electrolyzed water cannot be restored unless there is a command for the operation of generating electrolyzed water. On the other hand, in the electrolyzed water generating apparatus according to the present invention, the operation of generating electrolyzed water that has been stopped halfway due to the stoppage of power supply due to a power failure or the like is matched with the return of power supply due to the cancellation of power failure or the like To return. For this reason, according to the electrolyzed water generating apparatus, the electrolyzed water generation operation is restarted and replenished into the storage tank without requiring the user or the maintenance manager to restart the electrolyzed water generating operation. A predetermined amount of electrolytically generated water in the storage tank can be secured.

The present invention relates to an electrolytic tank for electrolyzing water to be electrolyzed, a storage tank for receiving and storing electrolytically generated water generated in the electrolytic tank, and an electrolysis provided in the storage tank disposed in the storage tank. When the water level sensor detects that the water level of the electrolytically generated water stored in the storage tank is lower than the set water level, provided with a water level sensor that detects a preset water level (set water level) of the generated water. This is an electrolyzed water generating device that employs an electrolysis operation system in which the electrolyzed water generation operation is restarted and the electrolyzed water is replenished in the storage tank . In FIG. 1, the electrolyzed water generating apparatus which concerns on one Embodiment of this invention is shown typically. The electrolyzed water generating apparatus includes a diaphragm electrolyzer 10a, a storage tank 10b, a concentrated salt water tank 10c, and an aqueous circuit 20a connecting them, and a control device 20b shown in FIG. The control device 20b controls the electrolysis operation of the electrolyzed water generating device.

  The diaphragm electrolyzer 10a includes a tank body 11, an ion-permeable diaphragm 12 that divides the tank body 11 into two compartments, and each compartment is formed in each electrolytic chamber R1, R2. It consists of a pair of electrodes 13a and 13b. Each electrode 13a, 13b is connected to a DC power source 13c, and a voltage of a predetermined pressure is applied to each electrode 13a, 13b by the control device 20b. Moreover, about the electrolysis current at the time of electrolysis operation, the control apparatus 20b controls so that it may become the set constant current based on the detection signal output from the current sensor 13d.

  The storage tank 10b receives and stores the electrolyzed water generated in the electrolysis chamber R1 of the diaphragm electrolyzer 10a, and is disposed in the tank main body 14 and the tank main body 14 for storing the electrolyzed water. A float switch 15 is provided, and the tank body 14 is provided with a pouring pipe 16 for pouring electrolytically generated water contained in the tank body 14. A manual opening / closing valve 16a is interposed in the middle of the extraction pipe 16, and the user of the electrolytically generated water opens the opening / closing valve 16a, so that the electrolytically generated water stored in the tank main body 14 is stored. The sample can be collected through the extraction pipe 16.

  The float switch 15 is a water level sensor that detects the set water level (L), and is disposed on the upper side of the tank body of the storage tank 10b. In the electrolyzed water generating apparatus, the upper limit water level of the electrolyzed water stored in the storage tank 10b is set, and this upper limit water level is referred to as a set water level L. The float switch 15 is disposed so as to be positioned in the vicinity of the set water level L of the electrolyzed water, and is turned ON when the water level of the electrolyzed water stored in the storage tank 10b reaches the set water level L. Further, when the level of the electrolyzed water falls below the set water level L by a predetermined amount, the operation is turned off. The float switch 15 outputs these ON-OFF operations to the control device 20b as detection signals. Based on these detection signals, the control device 20b controls the electrolysis operation of the electrolyzed water generation device so as to stop or restart the electrolysis water generation operation described later.

  The concentrated salt water tank 10c which comprises the said electrolyzed water production | generation apparatus accommodates high concentration salt solutions, such as a saturated aqueous solution of salt. The high-concentration saline is one raw water for preparing the electrolyzed water, and diluted with tap water that is the other raw water to prepare dilute saline that is the electrolyzed water. The water system circuit 20a includes a first supply line 21a, a second supply line 21b, and a third supply line 21c. The first supply pipe 21a is connected to the water pipe and functions to introduce tap water into the third supply pipe 21c. The second supply line 21b is connected to the concentrated salt water tank 10c and functions to introduce high-concentration saline into the third supply line 21c.

  The first supply pipe 21a is provided with a water valve 22a interposed in the middle thereof, and the second supply pipe 21b is provided with an electromagnetic metering pump 22b interposed in the middle of the two supply pipes. The pipelines 21a and 21b are connected to the third supply pipeline 21c. The third supply pipe 21c has a pair of branch pipe sections on the downstream side, and is upstream of each electrolytic chamber R1, R2 formed in the tank body 11 at each branch pipe section. It is connected.

  The electromagnetic metering pump 22b is driven to discharge high-concentration saline by a pulse applied from the outside, and the discharge amount of the high-concentration saline is set according to the frequency (stroke) of the pulse. The driving operation of the electromagnetic metering pump 22b and the opening / closing operation of the water valve 22a are controlled by the control device 20b. In the electrolyzed water generating operation in the electrolyzed water generating device, the water valve 22a is opened and the electromagnetic metering pump 22b is driven to supply a predetermined amount of tap water and high-concentration saline to the third supply line 21c. Will continue to be introduced. In the third supply pipe 21c, the introduced tap water and the high-concentration saline are uniformly mixed while reaching the branch pipe section, and are prepared into a set diluted saline, and the prepared diluted saline is used. Water is supplied as electrolyzed water to the electrolysis chambers R1 and R2 of the diaphragm electrolyzer 10a.

  In the diaphragm electrolyzer 10a, a first outflow conduit 23a and a second outflow conduit 23b are connected to the downstream side of the electrolysis chambers R1 and R2. The first outflow pipe 23a faces the upper part in the tank main body 14 of the storage tank 10b, and introduces the electrolyzed water generated in the electrolysis chamber R1 into the tank main body 14 of the storage tank 10b. The second outflow pipe 23b faces a storage tank or drainage groove (not shown), and causes the electrolytically generated water produced in the electrolysis chamber R2 to flow out of the system. In the electrolyzed water generating apparatus, during the electrolysis operation, the control device 20b controls the opening and closing of the water valve 22a, the drive control of the electromagnetic metering pump 22b, the application of voltage to the electrodes 13a and 13b and the control of the electrolysis current, the float switch 15 Control of stop / restart of the electrolyzed water generation operation based on the detection signals from.

In a state where the electrolyzed water generating device is installed at a desired location, the power is turned on and the user can use it. In the storage tank 10b, a predetermined set by an initial electrolysis operation is set. A capacity of electrolytically generated water is accommodated. For this reason, when the user performs an extraction operation of the electrolysis water (for example, an opening operation of the opening / closing valve 16b) in order to collect a desired amount of electrolysis water, the electrolysis water stored in the storage tank 10b is sequentially. At this time, the water level of the electrolyzed water in the storage tank 10b is lowered at a stretch. For this reason, the float switch 15 disposed in the storage tank 10b detects that the level of electrolyzed water in the storage tank 10b has dropped from the set water level L (OFF operation), and controls this as a detection signal. Output to the device 20b.

  As a result, the control device 20b functions to restart the electrolyzed water generation operation, and the electrolyzed water generation operation is immediately resumed. As a result, electrolytically generated water is continuously generated in the diaphragm membrane electrolytic cell 10a, and the generated electrolytically generated water is continuously introduced into the storage tank 10b. In the storage tank 10b, the electrolytically generated water is sequentially introduced to gradually increase the level of the electrolytically generated water. When the electrolytically generated water level reaches the set water level L, the float switch 15 is turned on to detect this. This is output as a detection signal to the control device 20b. For this reason, the control device 20b functions to stop the electrolyzed water generation operation, but the electrolyzed water generation device sets the time for the electrolyzed water generation operation to be resumed. Will continue until the set time. Therefore, the electrolytically generated water generation operation stops after the electrolytically generated water level in the storage tank 10b continues until a predetermined amount exceeds the set water level.

  In the electrolyzed water generating device of this type, immediately before the level of the electrolyzed water in the storage tank 10b reaches the set water level L, the electrolyzed water is in a fluctuating state due to the introduction of electrolyzed water and the like, and is not necessarily quiet. Not. The float switch 15 that detects the set water level L of the electrolyzed water in the storage tank 10b operates accurately when the water level of the electrolyzed water in the storage tank 10b is quiet, but the operation is unstable in a wavy fluctuation state. It becomes. In this case, an unstable operation state occurs in the float switch 15. That is, the float switch 15 repeats the ON-OFF operation immediately before the electrolytically generated water reaches the set water level L. As a result, the control device 20b repeatedly stops and restarts the electrolytically generated water generation operation in a short time. May be done.

  On the other hand, in the electrolyzed water device according to the present invention, as described above, the time of the electrolyzed water generating operation in which the electrolyzed water level in the storage tank 10b is restarted after being lowered from the set water level. The set time is a stable characteristic as compared with the electrolyzed water having an unstable characteristic that is generated at the beginning of the electrolysis operation when the level of the electrolyzed water in the storage tank 10b reaches the set water level. The ratio of the electrolyzed water is set to be sufficiently large.

Therefore, the electrolytic water generation apparatus according to the present invention can prevent due to frequent fluctuations in the water level of the electrolytic water generated in the savings distillation tank 10b, and repeating generating operation of the electrolytic water generated in a short time , thereby, the electrolyzed water to be supplied to the storage tank at a time of restarting the operation, a stable ratio of electrolyzed water properties are able to sufficiently large, electrolytic generation is stored in the storage tank 10b The water can be electrolytically generated water with sufficient characteristics set.

  Also, in this type of electrolyzed water generating device of the prior art, when the supply of power from the power supply is temporarily stopped during the electrolyzed water generation operation, for example, due to a power failure, etc., and the electrolyzed water generation operation is interrupted, Even if the supply of electric power to the electrolyzed water generating device is restored due to the cancellation of the subsequent power failure or the like, the electrolyzed water generating operation cannot be restored unless there is a command for the electrolyzed water producing operation. However, in the electrolyzed water generating apparatus according to the present invention, the operation of generating electrolyzed water that has been interrupted due to the stop of the power supply due to a power failure or the like is returned in accordance with the return of power supply due to the cancellation of the power failure, etc. The generation operation of the interrupted electrolytically generated water is continued for the remaining time of the set time. For this reason, according to the electrolyzed water generating apparatus, when a power failure or the like is canceled, the electrolyzed water generating operation is resumed without requiring the user or a maintenance manager to restart the electrolyzed water generating operation. Then, the electrolytically generated water is replenished in the storage tank 10b, and a predetermined amount of electrolytically generated water in the storage tank 10b can be secured.

  FIG. 3 relates to the electrolysis water generation operation state (state transition 1), the generation operation stop state (state transition 2), and the power failure state (state transition 3) during electrolysis operation of the electrolyzed water generation apparatus. FIG. When the electrolyzed water generating device is installed at a desired location, the power is turned on and the user can use the electrolyzed water generating device, and a predetermined amount of electrolyzed water is set in the storage tank 10b. Is in a state waiting for the user to collect electrolyzed water in the storage tank 10b. This standby state corresponds to the state transition 2 in which the operation of generating electrolyzed water is stopped, the water valve 22a is closed (OFF), the electromagnetic metering pump 22b is not driven (OFF), and the electrodes 13a and 13b are The voltage application is stopped (OFF).

  In the electrolyzed water generating apparatus, when the user performs a pouring operation to collect a desired amount of electrolyzed water stored in the storage tank 10b, the level of the electrolyzed water in the storage tank 10b falls below the set water level L all at once. The float switch 15 operates (OFF) to detect this, and outputs this to the control device 20b as a detection signal. Thereby, the control apparatus 20b changes the state of the said electrolyzed water production | generation apparatus to the state of the state transition 1, restarts the electrolysis water production | generation operation, and is produced | generated continuously by the diaphragm electrolyzer 10a. The generated water is continuously introduced into the storage tank 10b. In state transition 1, the water valve 22a is in an open (ON) state, the electromagnetic metering pump 22b is in a driving (ON) state, and the electrodes 13a and 13b are in a voltage application (ON) state.

  In the electrolytically generated water generation operation, when the amount of electrolytically generated water introduced into the storage tank 10b exceeds the amount dispensed, the water level of the electrolytically generated water stored in the storage tank 10b gradually increases, When the electrolyzed water level reaches the set water level L, the float switch 15 operates (ON) to detect this, and outputs this to the control device 20b as a detection signal. The control device 20b The generation operation is further continued. In the electrolyzed water generating apparatus, the operation time of the electrolyzed water generating operation to be resumed is set to 3 minutes, for example. For this reason, the control device 20b changes the state of the electrolyzed water generating device to the state of state transition 2 when the generating operation has passed for 3 minutes, stops the electrolyzed water generating operation, and electrolyzed water is generated. The introduction into the storage tank 10b is stopped.

  In the electrolyzed water generating device, the power supply to the electrolyzed water generating device is stopped due to a power failure or the like during the electrolyzed water generating operation or is stopped, and then the power supply to the electrolyzed water generating device is stopped by the cancellation of the power failure or the like. Measures are taken when returning. The state transition 3 shown in FIG. 3 is a state in the power failure state of the electrolyzed water generating device. When a power failure occurs during the electrolytic operation of the electrolyzed water generating device and the power supply is turned off, the electrolyzed water generating device shifts to the state transition 3 and enters the electrolysis operation stopped state. In the electrolyzed water generating apparatus, there is a case where a power failure occurs during the electrolyzed water generation operation (power OFF), or when a power failure occurs while the electrolyzed water generation operation is stopped. In the same manner, the state transitions to 3, and when the power failure is canceled (power ON), the former returns to the state transition 1.

  Therefore, especially in the former case, the operation of generating electrolyzed water once interrupted due to a power failure or the like is resumed in conjunction with the cancellation of the power failure. For this reason, according to the electrolyzed water generating apparatus, when a power failure or the like is canceled, the electrolyzed water generating operation is resumed without requiring the user or a maintenance manager to restart the electrolyzed water generating operation. The electrolytically generated water stored in the storage tank 10b can be held at a predetermined amount.

It is a mimetic diagram showing roughly the electrolyzed water generating device concerning one embodiment of the present invention. It is a block diagram which shows the relationship between the control apparatus which the same electrolyzed water generating apparatus has, and each electric component. It is a state transition diagram which shows in relation to the production | generation operation state of electrolysis water, the production | generation operation stop state, and the production | generation operation stop state by a power failure at the time of the electrolysis operation in the electrolyzed water production | generation apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10a ... Separator membrane electrolytic cell, 10b ... Storage tank, 10c ... Salt water tank, 11 ... Tank main body, 12 ... Diaphragm, 13a, 13b ... Electrode, 13c ... Power supply, 13d ... Current sensor, 14 ... Tank main body, 15 ... Float switch , 16 ... extraction pipe, 16b ... open / close valve, 20a ... water circuit, 20b ... control device, 21a ... first supply line, 21b ... second supply line, 21c ... third supply line, 22a ... water valve, 22b ... electromagnetic metering pump, 23a ... first outflow line, 23b ... second outflow line, R1, R2 ... electrolytic chamber, L ... set water level.

Claims (4)

An electrolytic cell for electrolyzing water to be electrolyzed, a storage tank for receiving and storing electrolytically generated water generated in the electrolytic cell, and an electrolytic generation disposed in the storage tank disposed in the storage tank A water level sensor for detecting a predetermined water level (set water level) of water set in advance is provided, and the water level sensor detects that the level of electrolyzed water stored in the storage tank has dropped below the set water level. The electrolyzed water generation apparatus adopts an electrolysis operation method in which the electrolyzed water generation operation is restarted and the electrolyzed water is replenished in the storage tank,
The electrolysis water generation operation resumed when the electrolysis water in the storage tank drops below the set water level, the water level sensor indicating that the electrolysis water level in the storage tank has reached the set water level. Is set in advance so that the ratio of the electrolyzed water having stable characteristics is sufficiently larger than the electrolyzed water having unstable characteristics generated at the beginning of electrolysis operation. ) Is continued until a lapse of time. In the electrolytic water generation apparatus according to claim 1, wherein the water level sensor disposed in the reservoir tank is electrolytic water generation apparatus, characterized in that the float switch to operate in the set water level of the electrolytic water produced. 2. The electrolyzed water generating apparatus according to claim 1, wherein the set time for restarting electrolyzed water generation operation is five times as long as electrolyzed water having unstable characteristics at the beginning of electrolysis operation is generated. The electrolyzed water generating apparatus is characterized by being set to the above time. In the electrolyzed water generating apparatus according to any one of claims 1 to 3, when the supply of electric power from the power source is temporarily stopped during the electrolyzed water generating operation, and the electrolyzed water generating operation is temporarily stopped. The electrolyzed water generating device is characterized in that when the supply of electric power is subsequently restored, the operation of generating electrolyzed water that has been stopped once is restored .

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