JP6479459B2 - Ozone water disinfection machine - Google Patents

Description

  The present invention relates to an ozone water disinfecting apparatus that generates ozone water using feed water supplied from the outside as raw water and uses the generated ozone water to disinfect an object to be disinfected in a disinfecting tank. More specifically, the present invention relates to an ozone water disinfection method suitable for disinfecting medical devices such as endoscopes and the like contaminated with tuberculosis bacteria and the like using this type of ozone water disinfecting machine.

  As the ozone water disinfection machine, as disclosed in Patent Document 1, an endoscope sterilization apparatus for disinfecting an endoscope is known. In the endoscope sterilization apparatus, tap water is supplied as raw water into a sterilization tank (disinfection tank), ozone gas is injected into the raw water stored in the sterilization tank, and ozone water is generated in the sterilization tank. After the ozone concentration of the ozone water reaches a predetermined concentration, the endoscope to be sterilized disposed in the sterilization tank is sterilized with the ozone water while circulating the ozone water in the sterilization tank. After the sterilization treatment, ozone water in the sterilization tank is discharged after removing ozone through the ozonizer.

JP, 2014-33794, A

  In conventional ozone water disinfection machines such as endoscope sterilization devices, generally, the disinfection treatment is carried out for a fixed treatment time of about 5 minutes while maintaining the ozone water concentration at a constant concentration of about 0.5 ppm. ing. Further, since tap water is used as it is as raw water for ozone water generation, ozone water having a temperature substantially the same as that of tap water is generated and used for disinfection.

  In the disinfection of medical devices such as endoscopes, there may be a need for a high disinfecting effect which can kill M. tuberculosis, which is called high-level disinfection. However, up to now, high-level disinfection using an ozone water disinfectant has not been proposed.

  In the ozone water disinfecting machine, in order to increase the ozone concentration of the generated ozone water, it is necessary to extend the injection time of the ozone gas to the raw water stored in the disinfection tank. In particular, when the temperature of the raw water is high, the dissolution rate of ozone is lowered, so it takes a long time to obtain a desired ozone concentration. For example, in summer, the temperature of tap water used as raw water is often high, the dissolution rate of ozone decreases, and it takes a long time to increase the ozone concentration. As a result, the time required for one sterilization treatment becomes longer, and the working efficiency is significantly reduced.

  In view of the foregoing, it is an object of the present invention to efficiently use ozone water from an ordinary ozone concentration to a high ozone concentration capable of high-level disinfection with an ozone water disinfecting machine. It is to propose an ozone water disinfection method that can be disinfected.

  Another object of the present invention is to provide an ozone water disinfecting apparatus capable of efficiently disinfecting processing using ozone water from normal ozone concentration to high ozone concentration capable of high-level disinfection.

The present invention relates to an ozone water disinfecting apparatus for producing ozone water using raw water supplied from the outside as raw water and using the produced ozone water to disinfect the object to be disinfected in the disinfection tank. A concentration control unit capable of controlling the ozone concentration of water to a value within the range of 0.3 ppm to 5 ppm; a temperature control unit capable of controlling the temperature of the ozone water; an ozone gas generation unit generating ozone gas; The ozone water generation storage unit generates and stores ozone water supplied to the disinfection tank, and the concentration control unit is configured to connect the ozone water generation storage unit and the disinfection tank from the ozone gas generation unit. The first raw water supply system that supplies raw water from the outside to the ozone water generation storage unit by controlling the supply amount of ozone gas supplied, and stores the water storage tank for the ozone water generation storage unit And a second raw water supply system for supplying raw water controlled to a predetermined temperature, and the temperature control unit is configured to generate the ozone water generation storage from each of the first and second raw water supply systems. Control the amount of raw water supplied to the unit, and if the temperature of the raw water supplied from the first raw water supply system is higher than the set temperature, it is supplied from each of the first and second raw water supply systems Raw water is mixed to generate raw water for ozone water generation and stored in the ozone water generation storage unit, and the temperature of the raw water supplied from the first raw water supply system is lower than the set temperature; 2) It is characterized in that the raw water supply system does not supply raw water . In the present invention, ozone water having an ozone concentration including a concentration range of about 3 ppm or more which can kill M. tuberculosis reliably is used. In addition, the temperature of the ozone water is controlled to a predetermined temperature or less. Therefore, when the temperature of tap water used as raw water in summer or the like is high, the tap water can be lowered to, for example, 20 ° C. or lower. As a result, high concentration ozone water can be generated without requiring a long time. Therefore, it becomes possible to efficiently perform high-level disinfection of medical devices such as endoscopes and the like to which tuberculosis bacteria and the like adhere, without significantly prolonging the treatment time. In addition, by supplying ozone gas from the ozone gas generation unit to the ozone water generation storage unit, only a necessary amount of ozone water having a desired concentration can be generated in advance. Therefore, as in the case where ozone water is generated in the disinfection tank, one disinfection time can be shortened as compared with the case where the ozone water production time is included in the disinfection time, and the working efficiency of the ozone water disinfecting machine Can be improved. Furthermore, the temperature control unit controls the supply amount of raw water supplied from the first and second raw water supply systems to the ozonated water generation storage unit, so that the water storage tank of the ozonated water generation storage unit can be stored. The temperature of the generated ozone water can be controlled. In addition, temperature-controlled raw water is directly added to the raw water supplied to the ozone water generation storage without being temperature-controlled. Thereby, shortening of the time required for temperature control of the ozone water produced | generated in an ozone water production | generation storage part can be achieved. In addition, temperature control can be performed inexpensively in a short time, as compared with a general ozone water disinfecting machine that does not perform temperature control.

The temperature control unit may control the temperature of the ozone water to a value within the range of 0 ° C. to 30 ° C. At temperatures below 0 ° C., the raw water freezes, which is not preferable. At temperatures above 30 ° C., it takes a long time to produce high concentration ozone water, and when using ozone water at above 30 ° C., material deterioration may occur in the object to be disinfected, so this is preferable. Absent. In particular, the temperature control unit preferably controls the temperature of the ozone water to 20 ° C. or less. Thereby, material deterioration of the disinfection target exposed to ozone water can be suppressed.

The ozone water disinfecting machine of the present invention has a time control unit capable of adjusting the processing time of the disinfection process with ozone water in the disinfecting tank to a value within the range of 1 minute to 30 minutes. desirable. By adopting an appropriate combination of the ozone concentration of ozone water and the treatment time of the sterilization treatment, the sterilization treatment can be performed in a form (concentration, temperature, time) suitable for each of the objects to be disinfected.

In this case, it is desirable that the product of the ozone concentration and the treatment time respectively controlled by the concentration control unit and the time control unit be a value within the range of 2 ppm · min to 20 ppm · min. Thus, by setting the combination of the ozone concentration and the treatment time, it is possible to appropriately disinfect a wide range of bacteria from tuberculosis bacteria to general miscellaneous bacteria, and to shorten the disinfection time. For example, in order to kill M. tuberculosis, when the ozone water concentration is 3 ppm, the treatment time may be set to 5 minutes.

They are an external appearance perspective view of the front side of the ozone water endoscope disinfection machine to which the present invention is applied, and an external appearance perspective view of the back side. It is a schematic block diagram of the ozone water endoscope disinfection machine of FIG.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following embodiment, the ozone water disinfecting machine of the present invention is applied to an ozone water endoscope disinfecting machine for disinfecting an endoscope. The ozone water disinfecting machine of the present invention is not limited to the disinfection of an endoscope, and of course can be applied to the disinfection of other medical devices and other instruments.

Fig.1 (a) is an external appearance perspective view of the front side which shows the ozone water endoscope disinfection machine which concerns on this Embodiment, FIG.1 (b) is an external appearance perspective view of the back side. In addition, in FIG.1 (b), the display of the cold-water unit externally attached to the ozone water endoscope disinfection machine and the ozonolysis machine is abbreviate | omitted. In the ozone water endoscope disinfection machine, the endoscope which is the object to be disinfected is immersed in the inside of the disinfection tank filled with ozone water, and the ozone water is circulated in the disinfection tank and the ozone water is The endoscope is cleaned and disinfected by flowing it through the inside.

  If it demonstrates with reference to FIG. 1, the ozone water endoscope disinfection machine 1 is equipped with the exterior case 2 of the rectangular parallelepiped shape as a whole longitudinally long, for example. On the upper surface of the outer case 2 is attached a lid 3 which can be opened upward around the rear end edge. When the lid 3 is opened, the disinfection tank 4 disposed inside the exterior case 2 opens upward, and the endoscope 5 which is an object to be disinfected can be inserted from the top into the disinfection tank 4 and installed. It is. The front part of the disinfecting tank 4 in the exterior case 2 is a transparent window 6, and the inside of the disinfecting tank 4 can be viewed through the window 6 from the front.

  A touch panel 7 as an operation input / display unit is disposed on the rear side of the lid 3 on the upper surface of the outer case 2. The touch panel 7 doubles as a touch panel operation panel and a liquid crystal display panel for status display. By touching the work content displayed on the touch panel 7, processing such as disinfection is executed, and the progress state of the current work and the like are displayed on the liquid crystal display panel. At the side of the touch panel 7, a water flow confirmation window 8 for visually confirming whether water is flowing normally during the sterilization processing is disposed.

  A power switch 11 and a power inlet 12 are arranged in parallel in an upper central portion on the back surface of the outer case 2. A water supply port 14 for supplying tap water used as raw water for ozone water generation is disposed at a portion on one end side of the upper portion of the back surface. A cold water supply port 15 is disposed below the water supply port 14. The cold water supply port 15 is supplied with cold water from the cold water unit 16 used for adjusting the temperature of the raw water for ozone water generation. The cold water unit 16 cools the tap water to produce cold water and stores it inside.

  An oxygen supply port 17 to which oxygen for ozone generation is supplied is disposed at the other end of the rear surface of the outer case 2. The oxygen supply port 17 is supplied with oxygen from an oxygen cylinder (see FIG. 2) or an in-hospital oxygen pipe in a hospital or the like. In the lower part of the back side, a drainage port 18 for discharging ozone water after being used for disinfecting treatment is disposed. The ozone water discharged from the drainage port 18 after the completion of the disinfection treatment is discharged through the ozonizer 19. In addition, an exhaust port 20 is formed on the back side of the exterior case 2 at the opposite side to the drainage port, and the ozone gas coming out of the disinfection tank 4 is decomposed via the built-in ozonolysis unit (see FIG. 2). It is discharged as oxygen gas.

  FIG. 2 is a schematic configuration diagram of an ozone water endoscope disinfection system configured mainly with the ozone water endoscope disinfecting machine 1. Inside the ozone water endoscope disinfecting machine 1, a disinfecting tank 4 for cleaning and disinfecting the endoscope 5 is disposed. The ozone water 22 is supplied to the disinfection tank 4 from the ozone water generation unit 21 (ozone water generation storage unit). For example, ozone water of a predetermined concentration of 20 liters is supplied.

  For raw water for ozone water generation, externally supplied feed water, usually tap water 23, is used. The tap water 23 is supplied from the water supply port 14 to the ozone water generation tank 21 a of the ozone water generation unit 21 via the filter 24 and the on-off valve 25 (first raw water supply system). A water temperature gauge 27 for detecting the temperature of the tap water 23 is attached to the water supply path.

  Further, the tap water 23 is supplied to the cold water unit 16 and cooled in cold water 28 having a temperature lower than a preset temperature, for example 20 ° C., for example 5 ° C., and stored in the cold water unit 16. The cold water 28 can be supplied from the cold water unit 16 to the ozone water generation tank 21 a through the on-off valve 29 as needed (second raw water supply system).

  In the ozone water generation tank 21a, when the tap water 23 is higher than the set temperature, the cold water 28 is supplied from the cold water unit 16 and the tap water 23 and the cold water 28 are mixed to generate ozone water at the set temperature. Raw water is produced and stored. If the tap water 23 is lower than the set temperature, the cold water 28 is not supplied. As a result, raw water for ozone water generation at a temperature of 20 ° C. or lower is generated in the ozone water generation tank 21a.

  In the present example, the temperature of the ozone water 22 supplied into the disinfection tank 4 is not directly controlled. Generally, the ozone water endoscope disinfection machine 1 is mostly used in places where the environmental temperature is kept constant, such as in a hospital, and the ozone water temperature supplied to the disinfection tank 4 fluctuates significantly Very unlikely. Therefore, if the temperature of raw water is managed, the ozone water temperature in the disinfection tank 4 can be managed substantially. Of course, it is also possible to perform temperature control by directly detecting the temperature of the ozone water with a water temperature gauge or the like in the disinfection tank 4.

  On the other hand, the ozone gas 31 for ozone water generation is generated by the ozonizer 32 and supplied to the ozone water generation tank 21 a of the ozone water generation unit 21. The ozonizer 32 generates ozone gas from oxygen supplied from an oxygen cylinder 33 which is an external oxygen supply source through an oxygen supply port 17.

  The ozone water generation tank 21 a of the ozone water generation unit 21 is a tank having approximately the same capacity as the disinfection tank 4, for example, 20 liters. After the raw water at the set temperature is accumulated in the ozone water generation tank 21a, the ozone gas 31 is injected from the ozonizer 32. As a result, ozone is dissolved in the raw water, and ozone water 22 having a predetermined concentration is generated.

  By controlling the injection amount (injection time) of the ozone gas 31 into the ozone water generation tank 21a, the ozone concentration of the ozone water 22 in the ozone water generation tank 21a can be controlled to be a predetermined concentration.

  When the ozone water 22 having the set concentration is generated in the ozone water generation tank 21 a, the ozone water 22 is supplied to the disinfection tank 4 through the ozone water supply pipe 34 and the supply pump 35. In the disinfection tank 4, an endoscope 5 which is an object to be disinfected is set in advance so as to be able to be immersed in the ozone water 22 in the disinfection tank 4.

  In the disinfecting process, the endoscope 5 is disinfected while circulating the ozone water 22 in the disinfecting tank 4 through the circulation pipe 36 and the circulation pump 37. Although illustration is omitted, in order to allow the ozone water 22 to pass through the inside of the endoscope 5, a tube is connected to the air / water / water port of the endoscope 5, the forceps port, and the inside through the tubes Ozone water flows through the inside of the endoscope 5.

  The concentration of ozone water circulating in the disinfecting tank 4 is measured by an ozone water concentration meter 38 attached to the circulation pipe 36. When the measured concentration of the ozone water 22 is lower than the set concentration, the ozone gas 31 is supplied from the ozonizer 32 through the ozone gas supply branch pipe 39. Thus, the ozone concentration of the ozone water 22 is maintained at the set concentration. Further, the ozone gas discharged from the disinfecting tank 4 during the disinfecting process is decomposed via the ozonolysis unit 41 to be oxygen gas and discharged from the exhaust port 20 to the outside.

  After the disinfecting process is completed, the ozone water 22 in the disinfecting tank 4 can be drained to a predetermined drainage pipe 43 through the drainage pipe 42 and the ozonolysis unit 19. The ozonolysis unit 19 is filled with an ozonolysis product such as activated carbon, and decomposes ozone contained in the discharged ozone water.

Here, the cold water unit 16 is a unit externally attached to the ozone water endoscope disinfection machine 1 in this example, and can be connected and used as needed. It is also possible to incorporate the cold water unit 16 into the inside of the ozone water endoscope disinfector 1. The cold water unit 16 is provided with a cold water tank 61, to which tap water 23 is supplied as a raw water for ozone water generation through a water supply pipe 62 and a filter 63. By circulating the raw water stored in the cold water tank 61 through the circulation pump 64 via the chiller 65, cold water 28 having a temperature lower than the set temperature, for example, 5 ° C. is obtained in the cold water tank 61.

  The chilled water unit 16 includes a control unit 66. The control unit 66 operates in conjunction with the sterilizer control unit 50. The controller 66 can control the amount of stored water at a constant level based on the liquid level sensor 67 attached to the cold water tank 61. Further, based on the measurement value of the water temperature gauge 68 attached to the cold water tank 61, the water temperature of the cold water 28 in the cold water tank 61 can be controlled to a predetermined temperature, for example, 5 ° C. The cold water tank 61 is a tank having a smaller capacity than the ozone water generation tank 21a, and is, for example, 10 liters.

  The drive control of each part of the ozone water endoscope disinfector 1 configured as described above is performed by the disinfector control unit 50. For example, the sterilizer control unit 50 is mainly configured of a microcomputer, and executes a program installed in advance to drive and control each part to perform various operations.

  The disinfecting machine control unit 50 controls the concentration of the ozone water 22 in the disinfecting tank 4 to a set concentration based on the default value or the setting input from the touch panel 7, and generates ozone water supplied to the disinfecting tank 4. The temperature control unit 50b controls (adjusts) the ozone water 22 in the tank 21a to the set temperature, and functions as a time control unit 50c that controls the processing time of the disinfection treatment with the ozone water 22 in the disinfection tank 4 to the set time Do.

(Example of operation mode)
When using the ozone water endoscope disinfecting machine 1 of the above configuration as a high-level disinfecting machine to disinfect Mycobacterium tuberculosis, under the control of the disinfecting machine control unit 50, for example, each part according to the following operation mode Works.

  For example, as the disinfection conditions, the ozone water concentration is 3 ppm and the treatment time is 5 minutes so that the tuberculosis bacteria can be disinfected. Also, the water temperature is controlled to 20 ° C. or less. For example, when the power switch 11 is turned on, the cold water unit 16 attached to the ozonized water endoscope disinfector 1 starts cold water generation operation, and stores cold water of 5 ° C. in the cold water tank 61, for example.

  The disinfector control unit 50 starts an operation of taking tap water 23 whose temperature is not controlled directly into the ozone water generation tank 21a of the ozone water generation unit 21 via the filter 24 as raw water for ozone water generation. Do. Further, based on the detected water temperature by the water temperature gauge 27 disposed in the water supply path, the water temperature in the ozone water generation tank 21a is controlled to be 20 ° C. or less. For example, when the temperature of the tap water 23 is higher than 20 ° C., the cold water controlled to 5 ° C. is taken in from the cold water unit 16 and the water temperature in the ozone water generation tank 21 a is controlled to be 20 ° C. .

  The ozone gas 31 generated by the ozonizer 32 is taken into the ozone water generation tank 21a from the time when a predetermined amount of raw water 23 (tap water) is accumulated in the ozone water generation tank 21a, and the ozone water 22 is generated in the ozone water generation tank 21a. Perform the generation operation of By controlling the injection amount (injection time) of the ozone gas 31, the concentration of the ozone water 22 in the ozone water generation tank 21a can be controlled to be about 3 ppm which is the set concentration.

After this, the disinfector control unit 50 supplies the ozone water 22 stored in the ozone water generation tank 21 a to the disinfection tank 4. At the side of the disinfecting tank 4, the circulation pump 37 is driven to start the circulation of the ozone water 22. When the ozone water concentration measured by the ozone water concentration meter 38 is less than 3 ppm, the ozone gas 31 is introduced into the disinfection tank 4 from the ozonizer 32, and the ozone concentration is adjusted to the set concentration. After the ozone concentration reaches 3 ppm, the disinfection process of the endoscope 5 is started.

  When it is detected by the built-in timer or the like that the disinfection time 5 minutes has elapsed, the disinfection processing is ended, and the discharging operation of discharging the ozone water 22 from the disinfection tank 4 is performed.

  When the ozone concentration lower than 3 ppm is set as the disinfection conditions and the temperature lower than 20 ° C. is set as the ozone water temperature, the ozone water 22 having the set concentration and the set temperature is used in the ozone water generation tank 21a. As generated, the disinfector control unit 50 performs operational control.

  Further, as the sterilization condition, when the ozone concentration is low, the sterilization treatment can be performed in the operation mode in which the temperature control of the ozone water is not performed. For example, temperature control is not performed when the ozone concentration is 0.5 ppm and the disinfection time is 5 minutes. In this case, the ozone water endoscope disinfector 1 is operated without attaching the cold water unit 16 to the ozone water endoscope disinfector 1. Alternatively, when the cold water unit 16 is attached, the ozone water endoscope disinfecting machine 1 can be operated without supplying the cold water from the cold water unit 16 (without supplying water from the second raw water supply system). Just do it.

  As described above, the ozone water endoscope disinfection machine 1 is provided with the concentration control unit 50a, and the ozone concentration of the ozone water used for disinfection is set to 3 ppm required for high-level disinfection that can kill tuberculosis bacteria reliably. It can be enhanced.

  Moreover, since the temperature control part 50b of ozone water is provided, when the temperature of the tap water 23 used as raw water in summer etc. is high, the tap water 23 can be lowered | hung, for example to 20 degreeC. As a result, high concentration ozone water required for high-level disinfection can be generated in a short time as compared with the case of using high temperature tap water. Thus, high-level disinfection of medical devices such as endoscopes can be efficiently performed without significantly increasing the processing time.

  Furthermore, the temperature control unit 50 b controls the temperature of the ozone water to 20 ° C. As a result, it is possible to prevent or suppress the adverse effect that the material to be disinfected exposed to the high temperature ozone water is deteriorated.

  In addition to this, ozone water having a predetermined concentration and a predetermined temperature used for disinfection is generated in advance in the ozone water generation tank 21a. Compared with the case where ozone water 22 of a predetermined concentration is directly generated in the disinfection tank 4, the disinfection time can be shortened by the time for ozone water generation.

  In the cold water unit 16, the cold water 28 is stored in advance in the cold water tank 61. By mixing the cold water 28 with the tap water 23 whose temperature is not controlled in the ozone water generation tank 21a, the temperature of the generated ozone water 22 is controlled to be the set water temperature. By using cold water 28 whose temperature is controlled in advance, temperature control of the generated ozone water 22 can be efficiently performed in a short time by an inexpensive configuration.

  Here, by adopting an appropriate combination of the concentration of ozone water and the time of the disinfection treatment, the disinfection treatment can be performed in a form (concentration, temperature, time) suitable for each of the objects to be disinfected. In the case of a medical device such as an endoscope, the ozone water concentration may be set to a value within the range of 0.3 ppm to 5 ppm, and the treatment time may be set to a value within the range of 1 minute to 30 minutes.

  In this case, since the product of the ozone concentration and the treatment time corresponds to the bactericidal effect, it is desirable that the product be a value within the range of 2 ppm · min to 20 ppm · min. By setting the combination of ozone concentration and treatment time so as to obtain a value within this range, it is possible to appropriately disinfect a wide range of bacteria from general bacteria to M. tuberculosis and also shorten the disinfection time. Can be

  Further, the temperature of the ozone water is desirably set to a value within the range of 0 ° C. to 30 ° C. At temperatures below 0 ° C., the raw water freezes, which is not preferable. When the temperature exceeds 30 ° C, it takes a long time to generate high concentration ozone water, and when using high concentration ozone water at high temperature, material deterioration may occur in the object to be disinfected It is from.

  In the above embodiment, the ozone concentration generated in the ozone water generation tank 21a of the ozone water generation unit 21 is managed by the injection amount (injection time) of the ozone gas. It goes without saying that the ozone concentration of the ozone water 22 generated in the ozone water production tank 21a may be directly detected, and the ozone concentration may be controlled based on this.

  In the above embodiment, the temperature of the ozone water in the ozone water generation tank 21a is controlled, but the temperature of the ozone water supplied into the disinfection tank 4 is not directly controlled. Generally, the ozone water endoscope disinfection machine 1 is mostly used in places where the environmental temperature is kept constant, such as in a hospital, and the ozone water temperature supplied to the disinfection tank 4 fluctuates significantly Very unlikely. Therefore, if the ozone water temperature generated by placing in the ozone water generation tank 21a is managed, the ozone water temperature in the disinfection tank 4 can be substantially managed. Of course, it is also possible to perform temperature control by directly detecting the temperature of the ozone water with a water temperature gauge or the like in the disinfection tank 4.

DESCRIPTION OF SYMBOLS 1 ozone water endoscope disinfection machine, 2 exterior case, 3 lids, 4 disinfection tanks, 5 endoscopes, 6 windows, 7 touch panels, 8 water flow confirmation windows, 11 power switches, 12 power inlets, 14 water inlets, 15 cold water Supply port, 16 chilled water unit, 17 oxygen supply port, 18 drainage port, 19 ozonizer, 20 exhaust port, 21 ozone water generation unit, 21a ozone water generation tank, 22 ozone water, 23 tap water, 24 filter, 25 opening and closing Valve, 27 water temperature gauge, 28 cold water, 31 ozone gas, 32 ozonizer, 33 oxygen cylinder, 34 ozone water supply pipe, 35 supply pump, 36 circulation piping, 37 circulation pump, 38 ozone water concentration meter, 39 branch pipe for ozone gas supply , 41 ozonolysis unit, 43 drainage pipe, 50 disinfector control unit, 50a concentration control unit, 50 b Temperature control unit, 50c time control unit, 61 cold water tank, 62 water supply pipe, 63 filter, 64 circulation pump, 65 chiller, 66 control unit, 67 liquid level sensor, 68 water temperature gauge

Claims (6)

An ozone water disinfecting apparatus that generates ozone water using raw water supplied from outside as raw water and uses the generated ozone water to disinfect the object to be disinfected in the disinfection tank,
A concentration control unit capable of controlling the ozone concentration of the ozone water to a value within the range of 0.3 ppm to 5 ppm;
A temperature control unit capable of controlling the temperature of the ozone water;
An ozone gas generation unit that generates ozone gas;
An ozone water generation storage unit that generates and stores ozone water to be supplied to the disinfection tank;
And have
The concentration control unit controls the supply amount of ozone gas supplied from the ozone gas generation unit to the ozone water generation storage unit and the disinfection tank,
A first raw water supply system for supplying raw water from the outside to the ozone water generation storage unit;
A second raw water supply system for supplying raw water controlled to a predetermined temperature stored in a water storage tank to the ozone water generation storage unit;
And have
The temperature control unit controls the supply amount of raw water supplied from the first and second raw water supply systems to the ozone water generation storage unit,
When the temperature of the raw water supplied from the first raw water supply system is higher than the set temperature, the raw water supplied from each of the first and second raw water supply systems is mixed to obtain raw water for ozone water generation. When the temperature of the raw water generated and stored in the ozone water generation storage unit and the temperature of the raw water supplied from the first raw water supply system is lower than the set temperature, the raw water supply from the second raw water supply system is not performed Ozone water disinfection machine characterized by   The ozone water sterilizer according to claim 1, wherein the temperature control unit can control the temperature of the ozone water to a value within the range of 0 ° C to 30 ° C.   The ozone water sterilizer according to claim 2, wherein the temperature control unit can control the temperature of the ozone water to 20 ° C. or less.   The ozone water disinfecting machine according to claim 1, further comprising a time control unit capable of controlling the processing time of the disinfection treatment with the ozone water in the disinfecting tank to a value within the range of 1 minute to 30 minutes. .   The ozone water disinfection according to claim 4, wherein the product of the ozone concentration and the treatment time respectively controlled by the concentration control unit and the time control unit is a value within a range from 2 ppm · min to 20 ppm · min. Machine. The ozone water sterilizer according to any one of claims 1 to 5 , wherein the object to be disinfected is an endoscope.

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