JP2019188348A - Electrolytic water generation device, and endoscope washing device - Google Patents

Abstract

To provide an electrolytic water generation device not requiring a water quantity sensor and capable of automatically controlling an effective chlorine concentration.SOLUTION: An electrolytic water generation device 20 applies a constant voltage between electrodes 21a,21b in an electrolytic tank 21 storing water containing an additive liquid to which an electrolyte is added, to electrolyze water and generate electrolytic water. The electrolytic water generation device 20 comprises: an electrolytic current sensor 23 detecting an electrolytic current value supplied between the electrodes 21a,21b; a temperature sensor 25 detecting water temperature; and a control portion 24 controlling an amount of the additive liquid so that an effective chlorine concentration of the electrolytic water becomes a prescribed value based on the electrolytic current value and the temperature of the water.SELECTED DRAWING: Figure 3

Description

  The present invention relates to an electrolyzed water generating apparatus that electrolyzes an additive solution to which an electrolyte is added to generate electrolyzed water, and an endoscope cleaning apparatus using the electrolyzed water generating apparatus.

  2. Description of the Related Art Conventionally, endoscope cleaning apparatuses that store used endoscopes in a cleaning tank and perform cleaning and disinfection have been proposed. In such an endoscope cleaning apparatus, electrolyzed water is used during cleaning and disinfection. As an electrolyzed water generating apparatus for generating electrolyzed water, for example, there are techniques described in Patent Documents 1 and 2.

  The technique described in Patent Document 1 adjusts the oxidation-reduction potential and pH of electrolyzed water to be constant by performing feedback control so that the electrolysis current becomes constant with reference to the electrolysis current during electrolysis. .

  Specifically, the technique described in Patent Document 1 is adjusted so that the supplied water becomes constant at a predetermined amount of water, and this amount of water is detected by a water amount sensor. A constant concentration of saline is added to the supplied water and electrolyzed. When electrolysis occurs, an electrolysis current corresponding to the concentration flows, and the electrolysis current at this time is detected by a current sensor. Then, the amount of saline solution added is controlled so that the amount of supplied water is constant and the electrolytic current detected by the current sensor is constant.

  In addition, the technique described in Patent Document 2 compares the pH value of the electrolyzed water detected by the pH detecting means with the pH set value set by the pH setting means to determine the deviation, The power supply means is controlled by the control means based on the deviation signal, and the power supplied between the electrodes in the electrolytic cell is controlled.

JP-A-9-141265 JP-A-5-64785

  As described above, the technique described in Patent Document 1 described above requires a plurality of sensors such as a water amount sensor and a current sensor, so that there is a problem that the control is complicated and the cost is increased.

  Moreover, the technique described in patent document 2 detects the pH value of electrolyzed water, for example with a pH detection means. Therefore, when the electrolyzed water is strongly acidic, there is a problem that the life of the pH detecting means is shortened, the replacement frequency is increased, and the cost is increased.

  Furthermore, it is most important to control the effective chlorine concentration from the viewpoint of disinfecting the endoscope. However, the techniques described in Patent Documents 1 and 2 do not describe automatically controlling the effective chlorine concentration.

  This invention is made | formed in view of such a problem, and makes it a subject to provide the electrolyzed water production | generation apparatus and endoscope cleaning apparatus which can control an effective chlorine density | concentration automatically without requiring a water quantity sensor. .

  In order to achieve such an object, the present invention is characterized in that a voltage is applied between electrodes in an electrolytic cell containing water containing an additive solution to which an electrolyte is added to generate electrolyzed water by electrolysis. An electrolyzed water generating device, wherein an electrolysis current sensor that detects an electrolysis current value supplied between the electrodes, a temperature sensor that detects a temperature of the water, and the electrolysis based on the electrolysis current value and the water temperature And a control unit that controls the amount of the additive solution so that the effective chlorine concentration of water becomes a predetermined value.

  In one of preferred embodiments of the present invention, the electrolyzed water generating device according to claim 1, a cleaning tank that introduces electrolyzed water generated by the electrolyzed water generating device to clean or disinfect an endoscope, It is comprised so that it may be provided.

  In the electrolyzed water generating apparatus according to the present invention, in order to control the amount of the additive solution so that the effective chlorine concentration of the electrolyzed water becomes a predetermined value based on the electrolyzed current value detected by the electrolyzed current sensor and the temperature of the water, A water sensor is not required and the effective chlorine concentration can be automatically controlled. As a result, the cost can be reduced and the control can be simplified.

  Further, in the electrolyzed water generating apparatus according to the present invention, a constant pH value and a constant effective chlorine can be obtained by keeping the electrolysis current value constant even if the supply amount of pure water, the supply amount of the additive liquid and the concentration thereof change. The concentration will be obtained. As a result, it becomes possible to dispense with the water amount sensor as described above.

  Further, the endoscope cleaning apparatus according to the present invention includes the electrolyzed water generating device and a cleaning tank that introduces the electrolyzed water generated by the electrolyzed water generating device and cleans or disinfects the endoscope. Thus, since the effective chlorine concentration of the electrolyzed water becomes a predetermined value, the cleaning effect or the disinfection effect of the endoscope can be enhanced.

It is a schematic perspective view which shows the state which removed the opening / closing cover in the endoscope washing | cleaning apparatus to which the electrolyzed water generating apparatus of embodiment of this invention is applied. It is a schematic longitudinal cross-sectional view which shows the state which removed the opening / closing cover in the endoscope cleaning apparatus to which the embodiment is applied. It is a block diagram which shows the control system of the electrolyzed water generating apparatus of embodiment of this invention. In the electrolyzed water production | generation apparatus of embodiment of this invention, it is a graph which shows the relationship between an electrolysis electric current value and water temperature, and an effective chlorine concentration. It is a flowchart which shows operation | movement of the control system of the electrolyzed water generating apparatus of embodiment of this invention. It is a characteristic view which shows effective chlorine concentration and pH value when acidic electrolyzed water production amount and pump duty ratio change with respect to electrolysis current value in the electrolyzed water generating apparatus of the Example of this invention. It is a graph which shows the relationship between acidic electrolyzed water production | generation amount and pump duty in the electrolyzed water generating apparatus of the Example of this invention. It is a graph which shows the relationship between acidic electrolyzed water production | generation elapsed time and effective chlorine concentration when changing the quantity of acidic electrolyzed water in the electrolyzed water generating apparatus of the Example of this invention.

  Hereinafter, an endoscope cleaning apparatus to which an electrolyzed water generating apparatus according to an embodiment of the present invention is applied will be described with reference to FIGS. 1 and 2.

(Endoscope cleaning device)
The endoscope cleaning apparatus 10 to which the electrolyzed water generating apparatus according to this embodiment is applied automatically cleans and disinfects the endoscope 11. As shown in FIGS. 1 and 2, the endoscope cleaning apparatus 10 includes a cleaning tank 13 that is formed in a concave shape on the front side, and the endoscope 11 is accommodated and supported vertically with the longitudinal direction as a vertical direction. I have. The cleaning tank 13 has a vertically long shape, and the front opening 13a and the bottom wall 13b are provided so as to be inclined downwardly from the front, and the slope on the lower side is larger than the upper side. The front opening 13a is covered with a transparent opening / closing cover (not shown).

  As shown in FIG. 2, an endoscope support portion 15 is provided on the bottom wall 13 b of the cleaning tank 13 as a storage position for storing and supporting the endoscope 11. The endoscope support portion 15 is formed so as to be supported in a state where the endoscope 11 is upright with the operation portion 11a upward and the insertion portion 11b downward.

  As shown in FIG. 2, cleaning fluid such as acidic electrolyzed water, alkaline electrolyzed water, water (tap water), various fluids such as air, and a cleaning member such as a wire brush (not shown) are disposed in the upper part of the cleaning tank 13. An upper introduction part 17 for introduction into the endoscope 11 is provided.

  A plurality of injection ports (not shown) are provided at predetermined positions in the cleaning tank 13. Supply means such as a hose are connected to these injection ports. The various fluids are supplied from the tank to the injection port through the supply means by driving a pump.

  In this embodiment, it wash | cleans by injecting washing | cleaning liquids, such as acidic electrolyzed water, alkaline electrolyzed water, water (purified water), to the outer side of the endoscope 11 from the several jet nozzle mentioned above.

  The endoscope cleaning apparatus 10 configured as described above first places the endoscope 11 on the endoscope support unit 15, closes an opening / closing cover (not shown), and starts a cleaning process. In this cleaning process, first, tap water is sprayed from the plurality of spray ports for a predetermined time to the outside of the endoscope 11, and then alkaline electrolyzed water is sprayed from the plurality of spray ports for a predetermined time. During this time, the endoscope interior is simultaneously cleaned by the upper introduction portion 17, but details are omitted.

  After the alkaline electrolyzed water is jetted to the outside of the endoscope 11, a disinfection process is performed next. In this disinfection process, acidic electrolyzed water is sprayed from the plurality of spray ports for a predetermined time.

  Next, a rinsing step is performed after the disinfection step. In this rinsing step, tap water is similarly sprayed from the plurality of spray ports for a predetermined time. Thereafter, air is supplied by a blowing means (not shown) to perform a drying process, and all the processes are completed.

(Embodiment of electrolyzed water generating apparatus)
Next, an electrolyzed water generating apparatus applied to the endoscope cleaning apparatus 10 shown in FIGS. 1 and 2 will be described.

  FIG. 3 is a block diagram showing a control system of the electrolyzed water generating apparatus according to the embodiment of the present invention. FIG. 4 is a graph showing the relationship between the electrolysis current value, the water temperature, and the effective chlorine concentration in the electrolyzed water generating apparatus according to the embodiment of the present invention. FIG. 5 is a flowchart showing the operation of the control system of the electrolyzed water generating apparatus according to the embodiment of the present invention. In FIG. 3, the solid line indicates the flow of electrical signals, and the broken line indicates the flow of the additive solution and pure water.

  As shown in FIG. 2, the electrolyzed water generating device 20 of the present embodiment is installed in, for example, the endoscope cleaning device 10, and alkaline electrolyzed water that cleans the endoscope 11 and acidic electrolysis that disinfects the endoscope 11. Produce water.

  The electrolyzed water generating apparatus 20 has an electrolyzer 21 as shown in FIG. In the electrolytic cell 21, a positive electrode 21a and a negative electrode 21b are installed. A constant DC voltage is applied from the DC power source 22 between the positive electrode 21a and the negative electrode 21b.

  In the electrolytic cell 21, an additive solution to which an electrolyte such as sodium chloride (sodium chloride) is added is accommodated. By applying a direct current voltage between the positive electrode 21a and the negative electrode 21b from the direct current power source 22, the additive solution supplied into the electrolytic cell 21 is electrolyzed to generate alkaline electrolyzed water and acidic electrolyzed water. .

  In the electrolyzed water generating apparatus 20, an electrolysis current sensor 23 is installed in a substrate box (not shown) together with a control unit 24 described later. This electrolytic current sensor 23 detects an electrolytic current during electrolysis. That is, the electrolytic current sensor 23 detects a resistance value between the positive electrode 21a and the negative electrode 21b during electrolysis, and detects an electrolytic current based on this resistance value. This detection signal is output to the control unit 24.

  In the electrolytic cell 21, a temperature sensor 25 is installed in addition to the electrolytic current sensor 23. The temperature sensor 25 is provided in a mixing tank (not shown) installed on the upstream side of the electrolytic cell 21. The mixing tank mixes the additive liquid supplied from the additive liquid bottle 26 and the pure water supplied from the pure water tank 29 to generate a mixed liquid. The temperature sensor 25 detects the temperature (water temperature) of the mixed liquid (water containing the additive liquid) before electrolysis. The detection signal of the temperature sensor 25 is output to the control unit 24 as with the electrolytic current sensor 23.

  The control unit 24 is mainly composed of a known microcomputer having a CPU (Central Processing Unit), a RAM (Random Access Memory), a ROM (Read Only Memory) as a recording medium, an I / O (Input / Output), and the like. Control device.

  Of these, the ROM stores data and programs that need to retain stored contents even when the power is turned off. The RAM temporarily stores data. The CPU implements each function by executing a program installed in the ROM. In addition to the ROM, the recording medium includes, for example, a computer-readable electronic medium such as a DVD-ROM (Digital Versatile Disk Read Only Memory), a CD-ROM (Compact Disc Read Only Memory), and a hard disk.

The control unit 24 receives a detection signal output from the electrolysis current sensor 23 and a detection signal output from the temperature sensor 25, that is, an electrolysis current value at the time of electrolysis and a signal indicating the water temperature before electrolysis. This electrolytic current value (A) has a correlation with the effective chlorine concentration (mg / L) as shown in FIG. Specifically, according to FIG. 4, as the electrolysis current value (A) increases, the effective chlorine concentration (mg / L) also increases. Here, in FIG. 4, at each water temperature, y represents a y-axis value, and x represents an x-axis value. R ² is a correlation coefficient for the plot, and the closer the value is to 1, the higher the reliability.

  Moreover, the said effective chlorine is a chlorine chemical | medical agent provided with the bactericidal effect, The hypochlorous acid and hypochlorite ion which are produced | generated when this chlorine chemical | medical agent melt | dissolves in water are also effective chlorine.

  Data indicating the relationship between the electrolytic current value and the effective chlorine concentration is obtained in advance through experiments or the like and stored in the ROM. In addition, you may make it memorize | store in the database provided separately, without memorize | storing said data in ROM.

  The water temperature (° C.) has a correlation with the effective chlorine concentration (mg / L) as shown in FIG. Specifically, according to FIG. 4, as the water temperature (° C.) increases, the effective chlorine concentration (mg / L) also increases. The data indicating the relationship between the water temperature and the effective chlorine concentration is obtained in advance by experiments or the like and stored in the ROM in the same manner as the electrolytic current value.

  Here, as shown in FIG. 4, in order to make the effective chlorine concentration 35 (mg / L), when the water temperature is 13 (° C.), the electrolytic current value needs to be approximately 5.7 (A). There is. When the water temperature is 24 (° C.), the electrolytic current value needs to be about 4.6 (A). When the water temperature is 27 (° C.), the electrolysis current value needs to be about 4.3 (A). When the water temperature is 27.5 (° C.), it is necessary to set the electrolytic current value to approximately 4.2 (A).

  Therefore, in this embodiment, when the water temperature is known in advance, the addition pump 27 is driven for a certain period of time so that the value of the electrolytic current sensor 23 becomes the above value, so that per unit time supplied to the electrolytic cell 21. The supply amount of the additive liquid may be controlled.

  As shown in FIG. 3, the electrolytic cell 21 has a non-return check by driving an addition pump 27 from an additive solution bottle 26 containing an additive solution to which an electrolyte such as high-concentration sodium chloride (sodium chloride) water is added. Saline is supplied through the valve 28. Further, pure water is supplied to the electrolytic cell 21 through a pressure reducing valve / electromagnetic valve 31 by driving a supply pump 30 from a pure water tank 29 containing pure water (tap water).

  The control unit 24 receives the detection signal output from the electrolytic current sensor 23 and the detection signal output from the temperature sensor 25, and outputs the control signal to the addition pump 27 for driving. By driving the addition pump 27, the additive solution is supplied from the additive solution bottle 26 to the electrolytic cell 21.

  Therefore, the control unit 24 corrects the temperature based on the water temperature detected by the temperature sensor 25 in addition to the electrolysis current value detected by the electrolysis current sensor 23, and generates alkaline electrolyzed water or acidic electrolyzed water (in this embodiment, acidic electrolyzed water). The amount of the additive solution is controlled so that the effective chlorine concentration of) becomes a predetermined value.

  Specifically, the control unit 24 drives the addition pump 27 for a certain time so that the effective chlorine concentration becomes, for example, 35 (mg / L), and the addition per unit time supplied from the additive solution bottle 26 to the electrolytic cell 21 Control the supply of liquid.

  In the present embodiment, when the effective chlorine concentration is controlled, temperature correction is performed using the water temperature detection signal from the temperature sensor 25 in addition to the electrolysis current value signal from the electrolysis current sensor 23, and the electrolysis current value and water temperature are effective. The relationship with the chlorine concentration is read from the data shown in FIG. 4 stored in the ROM.

  Then, the on / off time of the addition pump 27 is controlled so that the effective chlorine concentration becomes a predetermined value.

  Next, the operation for controlling the effective chlorine concentration in the present embodiment will be described.

  As shown in FIG. 5, first, it is determined whether the electrolytic current sensor 23 has detected an electrolytic current value (step S11). When the electrolytic current value is detected (step S11: Yes), the process proceeds to the next step S12. If the electrolytic current value is not detected (step S11: No), the process waits until it is detected.

  Subsequently, in step S12, it is determined whether the temperature sensor 25 has detected the water temperature of the liquid mixture before electrolysis. When the water temperature is detected (step S12: Yes), the process proceeds to the next step S13. If the water temperature is not detected (step S12: No), the process waits until it is detected.

  In the present embodiment, after the process of determining whether the electrolysis current value is detected, the process of determining whether the water temperature of the mixed liquid before electrolysis is detected is executed. May be reversed, or may be executed simultaneously.

  In step S13, the relationship between the electrolytic current value detected in step S11 and the effective chlorine concentration, and the relationship between the water temperature detected in step S12 and the effective chlorine concentration are read from the data shown in FIG. 4 stored in the ROM. .

  In step S14, the control unit 24 controls the driving and stopping of the addition pump 27 so that the effective chlorine concentration becomes a predetermined value, that is, for example, 35 (mg / L) in this embodiment, and the on / off time is set. Control. In this case, the on time of the addition pump 27 is set to 0.4 seconds, for example, and the off time of the addition pump 27 is set to 3 to 10 seconds.

  Thereby, the supply amount of the additive liquid per unit time supplied to the electrolytic cell 21 is controlled. As the supply amount of the additive liquid per unit time supplied to the electrolytic cell 21 changes, the electrolytic current value detected by the electrolytic current sensor 23 and the water temperature detected by the temperature sensor 25 also change.

  Then, it is determined whether the electrolytic current value is within a predetermined range (step S15). When the electrolysis current value falls within a predetermined range (step S15: Yes), the process proceeds to step S16.

  If the electrolytic current value does not fall within the predetermined range (step S15: No), the process returns to step S14, and the on / off time of the addition pump 27 is controlled so that the electrolytic current value falls within the predetermined range. Actually, in step S15, it is determined whether or not the target electrolytic current value is reached, and the feedback control is continued until the target electrolytic current value is reached.

  Furthermore, it is determined whether the generation of electrolyzed water has been completed (step S16). When the generation of the electrolyzed water is finished (step S16: Yes), the entire process is finished. Moreover, when the production | generation of electrolyzed water is not complete | finished (step S16: No), it returns to step S11 and repeats the process similar to the above again until the production | generation of electrolyzed water is complete | finished.

  When the salt solution which is the additive solution is reduced in the additive solution bottle 26, when the salt solution is supplied from the additive solution bottle 26, the tube for supplying the salt solution is above the water surface in the bottle 26. Will be located. As a result, bubbles will enter the tube. In this case, if bubbles are in the tube, the saline solution cannot be sent stably, so that the bubbles are generally discharged manually from the tube. It is forcibly sent.

  In the present embodiment, it is known that when the saline solution decreases in the additive solution bottle 26, the electrolytic current value changes. Therefore, on / off time of the addition pump 27 is controlled based on the electrolysis current value, and the saline solution is forcibly sent into the additive solution bottle 26 by controlling the supply amount of the saline solution per unit time. The air bubbles in the tube can be automatically discharged. As a result, appropriate alkaline electrolyzed water and acidic electrolyzed water can be generated.

  As described above, according to the present embodiment, the effective chlorine concentration of the electrolyzed water becomes a predetermined value based on the electrolyzed current value detected by the electrolyzed current sensor 23 and the temperature of the water containing the additive liquid before electrolysis. Since the amount of the additive liquid is controlled, a water amount sensor is not required, and the effective chlorine concentration can be automatically controlled. As a result, the cost can be reduced and the control can be simplified.

  Further, according to the present embodiment, even if the electrolyzed water is strongly acidic, the pH value of the electrolyzed water is not detected by the pH detecting means, so that the sensor life can be extended.

  Further, according to the present embodiment, a constant pH value and a constant effective chlorine concentration can be obtained if the electrolytic current value is kept constant even if the supply amount of pure water, the supply amount and concentration of the additive liquid change. It will be. As a result, it becomes possible to dispense with a water amount sensor. In addition, it is not necessary to adjust the concentration of the additive solution.

  Further, according to the present embodiment, in addition to the electrolysis current value detected by the electrolysis current sensor 23, the temperature of water containing the additive solution before electrolysis detected by the temperature sensor 25 is used as a correction value, and the control unit 24 Controls the effective chlorine concentration automatically and with high accuracy because it controls based on the electrolysis current value and the temperature of the water containing the additive solution before electrolysis so that the effective chlorine concentration of the electrolyzed water becomes a predetermined value. be able to.

  Moreover, according to this embodiment, since the supply amount per unit time of the additive liquid is controlled based on the on / off time of the drive of the addition pump 27 that supplies the additive liquid into the electrolytic cell 21, the effective chlorine concentration is reduced. It can be controlled automatically and with high accuracy.

  Furthermore, since the effective chlorine concentration of electrolyzed water becomes a predetermined value by applying the electrolyzed water generating apparatus 20 of this embodiment to the endoscope cleaning apparatus 10, the cleaning effect and the disinfection effect of the endoscope 11 are enhanced. be able to.

(Example)
Next, the electrolyzed water generating apparatus of the Example of this invention is demonstrated. In this embodiment, 20% saline is used as the additive solution.

  FIG. 6 is a characteristic diagram showing the effective chlorine concentration and pH value when the amount of acidic electrolyzed water generated and the pump duty ratio change with respect to the electrolysis current value in the electrolyzed water generator of the embodiment of the present invention. FIG. 7 is a graph showing the relationship between the amount of acidic electrolyzed water produced and the pump duty in the electrolyzed water producing apparatus of the example of the present invention. FIG. 8 is a graph showing the relationship between the acidic electrolyzed water generation elapsed time and the effective chlorine concentration when the amount of acidic electrolyzed water is changed in the electrolyzed water generating apparatus of the example of the present invention.

  In FIG. 6, the amount of acidic electrolyzed water produced (ml / min) indicates the amount of acidic electrolyzed water produced from saline and pure water that are additive solutions. The pump duty (%) is a flow rate of the additive liquid supplied from the additive liquid bottle 26. FIG. 6 shows the result of automatically adjusting the additive liquid by changing the supply flow rate of pure water.

  In FIG. 6, when the electrolysis current value is about 5 (A) and the acidic electrolyzed water production (ml / min) is changed to 645, 620, 598, 581 and 550, the effective chlorine concentration is 42 to 44 ( mg / L) and a substantially constant value were obtained. In addition, when the amount of acidic electrolyzed water produced (ml / min) is in the range of 550 to 645, the acid pH value is 2.55 to 2.60, and the alkali pH value is 11.50 to 11.61. A value was obtained.

  Further, when the electrolytic current value is about 5 (A) and the pump duty (%) is changed to 2.64, 2.41, 2.55, 2.13, and 1.89, the effective chlorine concentration is 42. A substantially constant value of ~ 44 (mg / L) was obtained. In addition, when the pump duty (%) is changed from 1.89 to 2.64, the pH value of the acid is 2.55 to 2.60, and the pH value of the alkali is approximately 11.50 to 11.61. A value was obtained.

  As shown also in FIG. 7, it turned out that pump duty (%) changes so that acidic electrolyzed water production amount (ml / min) may be followed.

  Moreover, as shown in FIG. 8, the amount of acidic electrolyzed water is indicated by a solid line (100%), a small amount indicated by a one-dot chain line (55%), a large amount indicated by a broken line (131%), and an over-point indicated by a two-dot chain line ( 171%), after 120 seconds from the start, in the case of normal (100%), the effective chlorine concentration was 39 (mg / L) and the pH value was 2.65. In the case of a small amount (55%), the effective chlorine concentration was 37 (mg / L) and the pH value was 2.65. In the case of a large amount (131%), the effective chlorine concentration was 38 (mg / L) and the pH value was 2.63. In the case of over (171%), the effective chlorine concentration was 42 (mg / L) and the pH value was 2.63. Therefore, it was found that even if the amount of acidic electrolyzed water was changed, the effective chlorine concentration and pH value became substantially constant after a predetermined time.

  As described above, according to this example, even if there is a change in the amount of acidic electrolyzed water produced (ml / min) and the pump duty (%), that is, the amount of supply of the additive liquid and the amount of pure water, It was found that a constant effective chlorine concentration and a constant pH value can be obtained by controlling the current value to be constant.

  In the present embodiment, it is obvious that a constant effective chlorine concentration and a constant pH value can be obtained by controlling the electrolytic current value to be constant even if the concentration of the additive solution is changed.

  Although the embodiment of the present invention has been described, this embodiment is presented as an example and is not intended to limit the scope of the invention. This embodiment can be implemented in various other forms, and various omissions, replacements, changes, and combinations can be made without departing from the spirit of the invention. This embodiment is included in the invention described in the scope of claims and its equivalent scope as well as included in the scope and spirit of the invention.

  In the above embodiment, the example in which the electrolyzed water generating device of the above embodiment is installed in the endoscope cleaning device has been described. However, the electrolyzed water generating device is not limited to this, and the electrolyzed water generating device is disposed outside the endoscope cleaning device. You may install in.

DESCRIPTION OF SYMBOLS 10 ... Endoscope washing | cleaning apparatus 11 ... Endoscope 13 ... Cleaning tank 15 ... Endoscope support part 17 ... Upper introduction part 20 ... Electrolyzed water production | generation apparatus 21 ... Electrolytic tank 22 ... DC power supply 23 ... Electrolytic current sensor 24 ... Control 25 ... Temperature sensor 26 ... Additive liquid bottle 27 ... Addition pump 28 ... Check valve 29 ... Pure water tank 30 ... Supply pump 31 ... Pressure reducing valve / solenoid valve

Claims (2)

An electrolyzed water generating device that generates electrolyzed water by applying a voltage between electrodes in an electrolyzer containing water containing an additive solution to which an electrolyte is added, and generating electrolyzed water,
An electrolytic current sensor for detecting an electrolytic current value supplied between the electrodes;
A temperature sensor for detecting the temperature of the water;
A control unit for controlling the amount of the additive solution so that the effective chlorine concentration of the electrolyzed water becomes a predetermined value based on the electrolysis current value and the temperature of the water;
An electrolyzed water generating apparatus comprising: The electrolyzed water generating device according to claim 1;
A cleaning tank that introduces the electrolyzed water generated by the electrolyzed water generator and cleans or disinfects the endoscope;
An endoscope cleaning apparatus comprising:

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