JP6536714B2 - Ozone generator - Google Patents

Description

The present invention relates to an ozone generating equipment that can appropriately notify the timing of such maintenance.

  Conventionally, an ozone generator which generates ozone water or ozone gas is used. This type of ozone generator performs, for example, sterilization, deodorization, removal of mold and slime using the generated ozone water, removal of indoor floating bacteria using the generated ozone gas, deodorization of indoor air, It is used to sterilize hard-to-reach places such as walls and ceilings.

  In order to maintain the generated ozone gas or ozone water at a predetermined ozone concentration, the ozone generator needs to periodically measure the ozone concentration. For this reason, conventionally, for example, the ozone water generated by the ozone generator was taken out manually, and the detection portion of the measuring device was immersed in the taken out ozone water to determine the ozone concentration. However, in the case of the above-mentioned manual measurement, the measurement operation is complicated, and in the case of a worker who can not repeat it, there is also a possibility that accurate measurement can not be performed.

  As another method of measuring the ozone concentration of the ozone gas or ozone water, a method is also conceivable in which an ozone concentration measuring device is incorporated in an ozone generation device and the ozone concentration is measured by the ozone concentration measuring device. According to this method, the measurement operation can be automated, and variation in measured values can be prevented as compared with the measurement by the operator. However, in the case of the built-in type ozone concentration measuring device, since the detection unit (a pair of electrodes etc.) is immersed in ozone water, if it is used with time, deposits such as calcium will be accumulated in this detection unit. There is a risk that it will adhere and stack, making it impossible to measure the ozone concentration correctly.

JP 2003-306316 A

  On the other hand, since ozone has a strong oxidizing action, parts through which ozone in the ozone generator passes are easily deteriorated, and they must be replaced regularly. Therefore, for each part to be replaced, their use time (usable time) is set in advance, the use time of each part is integrated, and when the use time is reached, a message such as part replacement is notified. , Had to run maintenance.

  The use time changes according to the ozone concentration (the higher the ozone concentration, the shorter it is), so it is preferable to set the use time according to the ozone concentration. However, in practice, as described above, even in the case of an ozone generator incorporating an ozone concentration measuring device, it is difficult to measure the ozone concentration accurately with time, so in consideration of safety, the highest ozone concentration The use time when ozone water or ozone gas was constantly supplied was used.

  And if the usage time is set as above, if the ozone concentration of ozone water or ozone gas actually flowed is low, the part is replaced although it can actually be used for a longer time. There is a problem in that the maintenance cost can not be reduced.

The present invention has been made in view of the above-described point, and an object thereof is to be able to obtain an appropriate ozone concentration with time and to perform appropriate notification at the time when maintenance etc. should be carried out. it is to provide an ozone generating equipment that can be achieved cost reduction of maintenance costs by.

The present invention includes an acquisition unit configured to acquire a water flow that is flowing water to produce an electrical physical quantity values and ozone water taken to generate the ozone, the values and water flow of the acquired electrical physical quantity based on the previous calculation means asking you to ozone concentration of Kio Zon water, based on the calculated ozone concentration was, determining means for determining whether or not requiring maintenance, the results of the previous SL-size constant , if the maintenance is judged to be necessary, in the ozone generating apparatus characterized by comprising a notification means for performing notification to the effect that any maintenance to.
The term "ozone" as used herein includes both ozone gas and ozone water. Further, the value of the electrical physical quantity includes a current value, a voltage value, a power value and the like. Further, the notification may be performed in an ozone generator that requires maintenance, may be performed in a management device described below, may be performed in a portable terminal described below, or may be performed in another device.
According to the present invention, the ozone concentration is calculated based on the value of the acquired electrical physical quantity and the amount of flowing water , and the calculated ozone concentration is used to determine whether or not maintenance is necessary. An appropriate ozone concentration can be calculated with time without touching the ozone concentration measuring device with ozone water , whereby notification that maintenance is necessary can be performed at an appropriate time, and an appropriate time Maintenance such as parts replacement.

Further, the present invention is characterized in that the ozone generation device is a device having a structure of generating and supplying ozone gas and ozone water .

Further, according to the present invention, the acquiring unit further acquires an energization time required to generate the ozone, and the judging unit generates the ozone based on the calculated ozone concentration and the acquired energization time. It is characterized by determining whether the device requires maintenance .
According to the present invention, by further acquiring the energization time, it can be easily and appropriately determined whether the ozone generator needs maintenance.

FIG. 1 is an overall schematic configuration diagram of an ozone generator monitoring system 1; FIG. 2 is a schematic configuration view of an ozone generator 10; It is a figure which shows an example of the ozone gas concentration with respect to a supply current value. FIG. 2 is a diagram showing an example of a functional block diagram of a management device 200. It is a process flow figure (the 1) of the monitoring method of the ozone generator 10. FIG. It is a process flow figure (the 2) of the monitoring method of the ozone generator 10. FIG.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is an overall schematic configuration diagram of an ozone generator monitoring system 1 according to an embodiment of the present invention. As shown in the figure, the ozone generator monitoring system 1 includes a plurality of ozone generators 10, a management apparatus 200 for managing the ozone generators 10, and a plurality of maintenance personnel for maintaining the ozone generators 10, respectively. A plurality of portable terminals 300 to be possessed are connected via a communication line 400.

  FIG. 2 is a schematic block diagram of the ozone generator 10. As shown in the figure, the ozone generator 10 uses the external air supplied from the air dryer 11 by the pump 13 and the high voltage from the high voltage power source 17 controlled by the controller 15 to The ozone gas is generated, and the generated ozone gas is released as it is through the switching means 21 and the densitometer 23, while the ozone gas generated in the ozone generator 19 is led to the gas-liquid mixing means 25 through the switching means 21. The ozone water is generated by mixing it with the tap water supplied via the flow meter 27, and the generated ozone water is released to the outside through the gas-liquid separator 29 and the concentration meter 31. Further, to the gas-liquid separator 29, an exhaust ozonolysis unit 33 for decomposing the exhaust ozone gas released from the gas-liquid separator 29 is connected.

  The air drier 11 includes a drying unit using a desiccant and the like, and an air cleaning unit using a filter and the like, and is an apparatus that performs drying and cleaning of the outside air introduced by these. The pump 13 sucks the outside air into the air dryer 11 and supplies clean and dry air discharged from the air dryer 11 to the ozone generator 19.

  The control device 15 controls the high voltage power supply (the supply voltage, the supplied current, the frequency, the energization time, etc.) supplied from the high voltage power supply 17 to the ozone generator 19. The control device 15 has storage means for storing over time the energization time and the current value (value of the electrical physical quantity) of the high voltage power supply which the high voltage power supply 17 supplies to the ozone generator 19. Further, the control device 15 is configured to be communicable with the management device 200 (a communication unit 207 described below) via the communication line 400, and the high voltage stored in the storage unit is started and stopped. The power supply time and current value of the power supply, measurement data from the flow meter 27 described below, and the like are appropriately transmitted to the management device 200.

  The ozone generator 19 is a device of a system (silent discharge system) which generates (generates) ozone gas by applying and discharging a high voltage from the high voltage power source 17 to the introduced air. FIG. 3 is a view showing an example of the ozone gas concentration to the supply current value of the ozone gas generated by the ozone generator 19 when the amount of supplied air is constant. As shown in the figure, the ozone gas concentration can be controlled by controlling the supplied current value.

  The switching means 21 is a device having a function of switching the supply destination of the ozone gas introduced from the ozone generator 19 to the densitometer 23 or the gas-liquid mixing means 25 in this example using a flow path switching solenoid valve. The densitometer 23 is a device that measures the ozone concentration of ozone gas. In this example, the gas-liquid mixing means 25 uses an aspirator, and the ozone generator 19 is provided to the water (tap water) supplied to the gas-liquid mixing means 25 using the pressure reduction state by the venturi effect of the aspirator. It is configured to effectively dissolve ozone gas supplied from the side.

  The gas-liquid separator 29 is a device that separates the introduced liquid and gas in the built-in tank, takes out the separated liquid as ozone water, and takes out the separated gas as exhaust ozone gas to the exhaust ozonolysis unit 33 is there. The concentration meter 31 is a device for measuring the ozone concentration of ozone water. The exhaust ozonolysis device 33 uses, for example, a catalytic decomposition method that decomposes ozone into oxygen by contacting ozone with a surface such as silica (SiO 2) or alumina (Al 2 O 3) using a catalyst (manganese dioxide (MnO 2) or the like) It is an apparatus. As the waste ozonolysis device 33, an apparatus by activated carbon adsorption decomposition method, thermal decomposition method, wet method or the like may be used.

  The ozone generator 10 configured as described above can be set to blow out the ozone gas or set to flow out the ozone water by the user operating the operation unit (operation panel) (not shown). In the case of blowing out the ozone gas, for example, after setting the blowout start time and the blowout end time in advance, the blowout command of the ozone gas is issued (specifically, the ozone gas switch is turned on). On the other hand, when the ozone water is made to flow out, for example, an outflow command of the ozone water is made in advance (specifically, the ozone water switch is turned on). When the ozone gas blowout command is issued, the apparatus is automatically activated at the blowout start time to start ozone gas blowout, and the apparatus is automatically stopped at the blowout end time to end the ozone gas blowout. On the other hand, when the outflow command of ozone water is performed, when the faucet (not shown) of the ozone water installed downstream of the concentration meter 31 is opened, the device is automatically started and the outflow of ozone water starts, and the faucet When the unit is closed, the device automatically shuts off and the flow of ozone water stops. Hereinafter, the specific operation of each part when the ozone generator 10 is activated will be described.

  That is, when the blowing time comes or the faucet of the ozone water is opened and the ozone generator 10 is activated, the air dried and purified by the air dryer 11 and the pump 13 is introduced into the ozone generator 19 At the same time, a high voltage is applied to the introduced air by the high voltage power supply 17 to generate ozone gas. At this time, the storage unit of the control device 15 that controls the high voltage power supply 17 temporally stores the energization time and the current value of the supplied high voltage power supply, and transmits them to the management device 200 appropriately.

  When the ozone generator 10 receives an ozone gas blow-out command, the switching means 21 is switched to the concentration meter 23 side, so the ozone gas generated by the ozone generator 19 is taken out to the outside as it is. . At that time, the ozone concentration of the ozone gas is detected by the densitometer 23, and for example, the concentration can be displayed on a display unit (not shown).

  On the other hand, when the ozone generation device 10 receives an ozone water outflow command, the switching means 21 is switched to the gas-liquid mixing means 25 side, so the ozone gas generated by the ozone generator 19 is It is introduced into the liquid mixing means 25 and mixed with the tap water supplied to the gas-liquid mixing means 25 to be dissolved in water to produce ozone water. The generated ozone water is introduced into the gas-liquid separator 29 and removed as ozone water after the ozone gas not dissolved in water is removed. At that time, the ozone concentration of the ozone water is detected by the concentration meter 31, and for example, the concentration can be displayed on the display unit (not shown). Further, the flow rate of water supplied to the gas-liquid mixing means 25 is measured by the flow meter 27, and the measured data is transmitted to the control device 15, stored in the storage unit thereof, and transmitted to the management device 200 as appropriate. .

  FIG. 4 is a diagram showing an example of a functional block diagram of the management device 200. As shown in FIG. As shown in the figure, the management apparatus 200 includes a CPU 201, a ROM 203, a RAM 205, a communication unit 207, a display unit 209, and an input unit 211. It is connected and connected. The CPU 201 controls the operation of the management apparatus 200 by executing the control program stored in the ROM 203. The ROM 203 stores various information such as the control program. The RAM 205 is storage means for temporarily storing various information. The communication unit 207 is a communication interface for communicating with various external devices via the communication line 400. The display unit 209 is, for example, a liquid crystal display, and displays information to an operator who operates the management apparatus 200. The input unit 211 includes various keys and the like for receiving various instructions from an operator who operates the management apparatus 200.

  Next, the monitoring method of the ozone generator 10 performed using the said ozone generator monitoring system 1 is demonstrated. 5 and 6 are process flow diagrams of a monitoring method for one ozone generator 10 by the management apparatus 200. The management device 200 monitors each of the plurality of ozone generators 10, and a method of monitoring one of the plurality of ozone generators 10 will be described below.

  First, as described above, when the blowing time has come or when the faucet of ozone water is opened, the high-voltage power supply 17 is activated by the control device 15, and a predetermined high-voltage power supply is supplied to the ozone generator 19. This information is transmitted from the control device 15 to the management device 200. That is, the management apparatus 200 first determines whether or not the target ozone generator 19 has been activated in FIG. 5 based on the received information from the control apparatus 15 (step 1). Next, the energization time and the current value are acquired from the control device 15 of the ozone generator 10 (step 2). Here, the energization time is initially the time from step 1 to step 2, but in the case of repeating step 2 to step 12 thereafter, it is the time from step 2 to returning to step 2 again. Next, the management device 200 calculates the ozone gas concentration based on the acquired current value (step 3). The calculation method uses, for example, data of the graph shown in FIG.

  Next, it is determined whether ozone water or ozone gas is to be supplied (step 4). In the case of ozone water, the amount of flowing water is further obtained from the flow meter 27 (step 5), and the concentration of ozone water is calculated. (Step 6). The ozone water concentration can be calculated by multiplying the calculated ozone gas concentration, the dissolution rate of ozone gas in water, and the water flow rate, and multiplying the predetermined coefficient. Alternatively, the relationship between the ozone gas concentration (or the current value) and the ozone water concentration with respect to each flowing water amount may be stored as a graph, and may be calculated by other various methods such as obtaining based on data of this graph. The point is to calculate the ozone concentration of the ozone water based on the acquired current value and the amount of flowing water.

  Next, it is determined whether maintenance of the ozone generator 10 is necessary based on the calculated ozone concentration and energization time (step 7). The determination method is as follows.

  That is, when ozone gas is used, an integrated value a 'is obtained by integrating the ozone gas concentration and the energization time, and the integrated value a' thus obtained is integrated and added up to that time. To a new accumulated integrated value a. Then, it is determined whether or not this cumulative integrated value a has reached the replacement determination value An (n = 1... N) previously determined for each part (1 to N), and the ozone generation device 10 is configured. It is determined whether maintenance of each component to be performed is necessary (step 7). That is, for example, whether maintenance is necessary for parts such as the ozone generator 19, the switching means 21, and each ozone hose from when the ozone generator 19 ejects the ozone gas through the switching means 21 and the concentration meter 23 or not to decide. Here, the replacement determination value An is previously defined as An = (use time) × (ozone gas concentration), and is stored in the RAM 205. Here, the use time is the cumulative use time up to the replacement time of the part when the part is used from the time of a new article or part replacement at a predetermined ozone gas concentration, and this use time is approximately inversely proportional to the ozone gas concentration The value An obtained by multiplying the two is used as the exchange determination value. Since this use time differs depending on each part, the replacement determination value An varies depending on each part (the same applies to the replacement determination value Bm described below).

  When it is determined that the cumulative integrated value a exceeds the replacement determination value An, it is determined that replacement of the part is necessary. That is, if the state with high ozone gas concentration is long, the part replacement time is earlier (the usable time is short), and if the state with low ozone gas concentration is long, the part replacement time is late (the usable time is long). The ozone gas concentration is changed automatically or manually according to the purpose of use (for example, 0.03 ppm when used for deodorization of meat etc. in a commercial freezer warehouse, when used for sterilization and deodorization in the cooking chamber) 0.05 ppm etc.). For example, when the ozone hose is constantly supplied with ozone gas at a high concentration, and the usable time until the replacement time of the ozone hose is 10000 hours, the ozone hose is changed at the ozone concentration at half the concentration until the replacement time of the ozone hose The usable time of is 20000 hours. That is, the management apparatus 200 calculates the ozone concentration (in this case, the ozone gas concentration) based on the acquired current value, and determines whether maintenance is necessary based on the calculated ozone concentration and the energization time. Since it comprises, it is possible to calculate an appropriate ozone concentration over time without installing a densitometer that directly touches the ozone gas. That is, it is possible to calculate an appropriate ozone gas concentration without being affected by deposits such as calcium, and thereby to notify that maintenance is necessary at an appropriate time. By the way, in this ozone generator 10, although the concentration meter 23 which measures the density | concentration of ozone gas by direct contact is installed, this displays the numerical value as a standard on the display part which the ozone generator 10 does not show in figure etc. It is installed for the purpose. For example, the data of the densitometer 23 is compared with the ozone concentration value calculated from the current value, and when the error between the two concentration values becomes large, it is notified that it is time to replace the densitometer 23, etc. May be

  On the other hand, when ozone water is used, an integrated value a 'obtained by integrating the ozone gas concentration and the energization time is added to the accumulated integrated value a which has been integrated by addition so far, and a new accumulated value is obtained. In addition to the integrated value a, the integrated value b 'obtained by integrating the ozone water concentration and the energizing time for water that generates the ozone water is added to the accumulated integrated value b that has been integrated so far. Add to make a new cumulative integrated value b. Then, first, it is determined whether or not the cumulative integrated value a has reached an exchange determination value An determined in advance for each part (1 to N) from the ozone generator 19 to the gas-liquid mixing means 25; It is determined whether maintenance of each part from the ozone generator 19 to the gas-liquid mixing means 25 is necessary. At the same time, in step 7, the cumulative integrated value b is a replacement determination value Bm (m = O... Y) previously determined for each part (O to Y) from the gas-liquid mixing means 25 to the ozone water outlet. It is determined whether maintenance of each part is required until ozone water is discharged from the gas-liquid mixing means 25.

  That is, it is determined whether or not maintenance is necessary for each part from the ozone generator 19 to which the ozone gas contacts to the gas-liquid mixing means 25 and at the same time each part until the ozone water is drained from the gas-liquid mixing means 25 to which the ozone water contacts. Determine if maintenance is required. The replacement determination value Bm is previously defined as Bm = (use time) × (ozone water concentration) and stored in the RAM 205. Here, the use time is the cumulative use time up to the replacement time of the part when the part is used from the time of a new article or part replacement at a predetermined ozone water concentration, and this use time is approximately inversely proportional to the ozone water concentration Therefore, the value Bm obtained by multiplying the two is used as the exchange determination value.

  If it is determined that the accumulated integrated value a exceeds the replacement determination value An, or if it is determined that the accumulated integrated value b exceeds the replacement determination value Bm, it is determined that replacement of the part is necessary. That is, the management device 200 calculates the ozone concentration (in this case, the ozone gas concentration and the ozone water concentration) by acquiring the flowing water amount before being generated in the ozone water in addition to the current value, and calculating the calculated ozone concentration Since it is configured to determine whether or not maintenance is necessary based on the current and the energization time, calculate the appropriate ozone concentration with time without installing a densitometer that directly touches the ozone gas or the ozone water. Can. That is, the appropriate ozone gas concentration and ozone water concentration can be calculated without being affected by deposits such as calcium, and thereby notification can be performed at an appropriate time that maintenance is necessary. In addition to the densitometer 23, the ozone generator 10 is provided with a densitometer 31 for measuring the concentration of ozone water by direct contact, but, like the densitometer 23, an ozone generator as well. It is installed for the purpose of displaying the numerical value as a standard on a display unit (not shown) 10. For example, the data of the densitometer 31 is compared with the ozone concentration value calculated from the current value, and when the error between the two concentration values becomes large, it is notified that it is time to replace the concentration meter 31, etc. It is good.

  The necessity of maintenance may be determined for each of the parts in the exhaust ozone gas discharge system discharged from the gas-liquid separator 29 in the same manner as in the case of the ozone gas and the ozone water. That is, for example, the relationship between the ozone concentration of the ozone water supplied to the gas-liquid separator 29 and the ozone gas concentration of the exhaust ozone gas discharged from the gas-liquid separator 29 is stored in advance as a graph and stored. From the gas-liquid separator 29 to exhaust of exhaust ozone gas, the ozone gas concentration is calculated from the above and the cumulative integrated value is obtained by integrating the ozone gas concentration and the energization time, etc. It may be determined whether or not maintenance of each part is necessary.

  As described above, when the management apparatus 200 determines that maintenance is not necessary for any of the parts in step 7, the process proceeds to step 12. On the other hand, when the management device 200 determines that maintenance is necessary for any of the parts in step 7, an instruction is output to notify the ozone generation device 10 (step 8). The notification method includes displaying on the display unit (not shown) of the ozone generator 10 determined to require maintenance, generation of an alarm sound in the ozone generator 10, and display on the display unit 209 of the management apparatus 200. Etc. can be considered.

  Next, in step 9, the management device 200 acquires the respective position information from each of the portable terminals 300. Next, the portable terminal 300 closest to the ozone generator 10 is calculated among the portable terminals 300 based on the position information (step 10). Then, the mobile terminal 300 is notified that the maintenance of the ozone generator 10 should be performed (step 11). As a result, maintenance personnel closest to the ozone generator 10 can rush to the ozone generator 10, and maintenance can be performed promptly.

  Then, in step 12, when the ozone generation device 10 is not stopped, the process returns to step 2 to repeat the above processing, while when the ozone generation device 10 is stopped, the above series of processing ends.

  When a part is replaced based on the above notification, the accumulated integrated value a or b for the part is reset to zero and stored in the ROM 203 of the management device 200. Conversely, even if the processing up to the step 12 is completed, when notification of parts replacement is not performed, the accumulated integrated values a and b are stored in the ROM 203 of the management apparatus 200 as they are.

  As described above, according to the monitoring method of the ozone generation device 10, an acquisition step (step 2) of acquiring the current application time and the current value required for the ozone generation device 10 to generate ozone, and acquisition Calculation step (steps 3 to 6) for calculating the ozone concentration of the ozone generated by the ozone generator 10 based on the calculated current value, and the ozone generator 10 based on the calculated ozone concentration and the energization time. If it is determined that maintenance of the ozone generator 10 is necessary as a result of the determination in the determination step (step 7) of determining whether or not maintenance is necessary and the determination in the determination step, maintenance is indicated to be performed. Since the configuration has the notification steps (steps 8 to 11) to perform notification, the appropriate ozone concentration (ozone gas concentration and ozone water concentration) over time Able to output, it is possible to perform appropriate notification to when to perform maintenance or the like, whereby it is possible to cost reduction of maintenance costs.

  Although the embodiment of the present invention has been described above, the present invention is not limited to the above embodiment, and various modifications may be made within the scope of the claims and the technical idea described in the specification and the drawings. It is possible. The configurations and effects of the present invention are within the scope of the technical idea of the present invention as long as any configuration not directly described in the specification and drawings is exhibited. For example, although the said ozone generator is an apparatus of the structure of producing | generating and supplying both ozone gas and ozone water, this invention is applicable also to the ozone generator of the structure which supplies only any one. Also, in the above ozone generator, the ozone concentration is calculated based on the current value required for the ozone generator to generate ozone, but instead of the current value, other electrical physical quantities such as voltage value and power value may be used. The ozone concentration may be calculated using a value. Further, although the ozone generator generates ozone by the silent discharge method, the ozone is generated based on the value of the electric physical quantity such as the acquired current value even if the structure is such that ozone is generated by the electrolysis method or the ultraviolet lamp method. The present invention can be applied to any method that can calculate the ozone concentration generated by the generator. Further, the method of calculating the ozone concentration is not limited to the above example, and other various methods may be used such as calculating using values of electrical physical quantities such as acquired current values using formulas.

  Further, in the ozone generator monitoring system, the manager and the plurality of ozone generators are connected via the network, but the controller of one ozone generator may be used as the manager. Also, in the above example, among the portable terminals from which the position information has been acquired, the notification to the effect that maintenance should be carried out is given to the portable terminal closest to the installation location of the ozone generator performing maintenance. The notification may be made to a mobile terminal which is close to the installation location of the mobile terminal but not the closest mobile terminal. Furthermore, it may be configured to notify to a plurality of close mobile terminals including the closest mobile terminal. In addition, notification from the management device may be configured to be performed only on the portable terminal instead of the ozone generation device.

DESCRIPTION OF SYMBOLS 1 ozone generator monitoring system 10 ozone generator 11 air dryer 13 pump 15 control apparatus 17 high voltage power supply 19 ozone generator 21 switching means 23 concentration meter 25 gas-liquid mixing means 27 flow meter 29 gas-liquid separator 31 concentration meter 33 discharge | emission Ozone decomposer 200 Management device 201 CPU
203 ROM 205 RAM
207 communication unit 209 display unit 211 input unit 213 bus 300 portable terminal 400 communication line

Claims (3)

Acquisition means for acquiring the value of the electrical physical quantity required to generate ozone and the amount of flowing water that was made to flow to generate ozone water;
Calculation means for determining the ozone concentration of the ozone water based on the value of the acquired electrical physical quantity and the amount of flowing water;
A determination unit that determines whether maintenance is required based on the calculated ozone concentration;
And a notification means for notifying that maintenance should be performed when it is determined that maintenance is necessary as a result of the determination.
An ozone generator comprising: The said ozone generator is an apparatus of the structure of producing | generating and supplying ozone gas and ozone water. The ozone generator of Claim 1 characterized by the above-mentioned. The acquisition means further acquires an energization time required to generate the ozone,
3. The apparatus according to claim 1, wherein the determination means determines whether the ozone generator needs maintenance based on the calculated ozone concentration and the acquired energization time. Ozone generator as described.

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