JP6422767B2 - Ozone water disinfector - Google Patents

Description

  The present invention relates to an ozone water disinfector that performs disinfection processing of a disinfecting object placed in a disinfection tank using ozone water. More specifically, the present invention relates to an ozone water disinfector equipped with a water temperature adjustment mechanism that controls the temperature of raw water for generating ozone water.

  As an ozone water disinfecting machine, an endoscope sterilizing apparatus for disinfecting an endoscope is known and disclosed in Patent Document 1. In the endoscope sterilizer disclosed herein, tap water is supplied as raw water to an ozone water generation unit, and ozone gas generated by the ozone gas generation unit is supplied to generate ozone water having a predetermined concentration. The generated ozone water is supplied to a sterilization tank (disinfection tank) and used for the sterilization treatment of the endoscope.

JP 2013-2000276 A

  Here, in a conventional ozone water disinfector such as an endoscope sterilizer, for example, the disinfection treatment is performed at a constant treatment time of about 5 minutes while maintaining the ozone water concentration at a constant concentration of about 0.5 ppm. ing. In disinfection of medical devices such as endoscopes, a high disinfection effect capable of killing tuberculosis bacteria called high-level disinfection may be required. In this case, ozone water having a high ozone concentration is required.

  In order to increase the ozone concentration of the ozone water used in the ozone water disinfector, it is necessary to lengthen the time for injecting ozone gas into the raw water in the ozone water generating unit. When the temperature of the raw water is high, the dissolution rate of ozone decreases, 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 increases, the ozone dissolution rate decreases, and it takes a long time to increase the ozone concentration. As a result, the time required for one disinfection process becomes longer, and the working efficiency is greatly reduced.

  Therefore, in the ozone gas generation unit, it is conceivable to cool the raw water using a cooling mechanism such as a chiller after storing the raw water in a water tank for producing ozone water. In this case, the disinfection processing time is increased by the time necessary for cooling the raw water. A cooling mechanism with a small capacity is not desirable because the cooling time becomes long. When a large-capacity cooling mechanism is used, the cooling time is shortened, but this is also not preferable because it increases the size and cost of the apparatus.

  The subject of this invention is providing the ozone water disinfector provided with the water temperature adjustment mechanism which can adjust the temperature of the raw | natural water for ozone water production | generation efficiently in view of such a point.

In order to solve the above problems, the ozone water disinfector of the present invention is
A disinfection tank in which disinfection objects are disinfected using ozone water;
A water temperature adjusting mechanism for adjusting raw water for generating the ozone water supplied to the disinfecting tank to a set temperature or lower;
Have
The water temperature adjusting mechanism is
A cold water tank for storing cold water cooled to be lower than the set temperature;
A mixer that mixes the supply water supplied from the outside with the cold water supplied from the cold water tank to generate the raw water adjusted to the set temperature or lower,
It is characterized by having.

  The water temperature adjustment mechanism of the ozone water disinfector of the present invention stores cold water adjusted to a temperature lower than the set temperature in a cold water tank. When the supply water such as tap water supplied from the outside is higher than the set temperature, the cold water stored in the cold water tank can be mixed with the supply water to obtain the raw water adjusted to the set temperature. When the temperature of the feed water is significantly higher than the set temperature, the mixing ratio of the cold water is increased. When the temperature of the feed water is slightly higher than the set temperature, the mixing ratio of the cold water is decreased. .

  Compared to the case where the supply water supplied from the outside is cooled by a cooling mechanism such as a chiller for the amount of water required for disinfection and adjusted to the set temperature, the required amount of raw water adjusted to the set temperature is reduced in a short time Can be obtained at Further, the cold water tank may be a tank having a smaller capacity than the required amount of ozone water used for disinfection (the capacity of the disinfection tank). Therefore, it is possible to suppress the increase in size and cost of the apparatus due to the provision of the water temperature adjustment mechanism. Furthermore, since ozone water is generated using raw water adjusted to the set temperature or feed water below the set temperature as raw water, it is exposed to high-concentration ozone water in a high temperature state in the disinfection tank. It is also possible to avoid the possibility of material deterioration in an object to be sterilized such as an endoscope.

In the ozone water disinfector of the present invention, a chiller that generates the cold water by cooling the supply water to be lower than the set temperature is disposed in the water temperature adjusting mechanism . Furthermore, the 1st filter which filters the said feed water used in order to produce | generate the said cold water, and the 2nd filter which filters the said feed water supplied to the said mixer are arrange | positioned, and the said 2nd filter is a said 1st filter. The filtering capacity is kept lower than that of the filter (a coarse filter is adopted).

A predetermined amount of cold water can be generated in advance by the chiller after the power is turned on, or before a sterilization process is performed from a predetermined time by timer control. Therefore, since supply water such as tap water can be cooled over time, a small-capacity chiller may be provided, and the increase in size and cost of the apparatus due to the provision of the water temperature adjustment mechanism can be suppressed. . Moreover, a 1st filter is for filtering the supply water for producing | generating cold water, and what is necessary is just to supply the supply water supplied for cold water production | generation with small flow volume over time. Therefore, a small-capacity filter having a high filtration capacity (finely) and a small processing flow rate per unit time, that is, a small filter is used. On the other hand, since the feed water supplied directly to the mixer flows in a large amount in a short time before the disinfection process, it is necessary to use a filter with a large capacity (a large treatment flow rate per unit time). . When the filtration capacity of the second filter is increased, the apparatus is increased in size and cost. In the present invention, as the second filter, a filter having a coarse mesh and a low filtering ability is used. Therefore, since the second filter can be a small filter with a large processing flow rate, the apparatus can be increased in size and cost. By reducing the filtration capacity, the degree of filtration of the feed water is lowered, but in the mixer, the raw water is mixed with cold water having a high degree of filtration and has no practical problem. For example, when the mixing ratio is 1: 1, the impurity concentration of raw water obtained in the mixer can be reduced to half of the supply water supplied to the mixer through the second filter.

  The water temperature adjusting mechanism may include a control unit that adjusts the mixing ratio of the supply water and the cold water in the mixer based on the temperature of the supply water and the temperature of the cold water. Thereby, water temperature adjustment can be performed with high accuracy according to the temperatures of the supply water and the cold water.

  Here, the mixer can be omitted, and an ozone water generation tank to which ozone gas is supplied can be used as the mixer.

  In this case, in the ozone water generation tank, supply water and cold water are supplied and mixed to generate raw water having a set temperature. For example, the temperature can be adjusted by first adding a predetermined amount of feed water and then adding cold water. Conversely, it is possible to adjust the temperature by first adding a predetermined amount of cold water and then supplying water. Since the mixer can be omitted, it is possible to suppress the increase in size and cost of the apparatus due to the provision of the water temperature adjusting mechanism.

  In the present invention, a cold water unit detachably connected to the ozone water disinfector main body can be arranged. In this case, the cold water unit can be provided with a circulating pump for circulating the cold water in the cold water tank, the chiller, the first filter, and the cold water tank through the chiller.

  In the present invention, the set temperature by the water temperature adjusting mechanism can be 20 ° C. If it does in this way, it can control that material degradation arises in disinfection objects, such as an endoscope, in a disinfection tank, being exposed to high concentration ozone water of a high temperature state.

It is the external appearance perspective view of the front side of the ozone water endoscope disinfection machine to which this invention is applied, and the external appearance perspective view of the back side. It is a schematic block diagram of the ozone water endoscope disinfection machine of FIG. It is explanatory drawing which shows another structural example of a water temperature adjustment mechanism.

  Embodiments of the present invention will be described below with reference to the drawings. In the following embodiments, the ozone water disinfector of the present invention is applied to an ozone water endoscope disinfector for disinfecting an endoscope. The ozone water disinfectant of the present invention is not limited to the disinfection of endoscopes, but can of course be applied to disinfection of other medical devices and other instruments.

  FIG. 1A is a front external perspective view showing an ozone water endoscope disinfecting apparatus according to this embodiment, and FIG. 1B is a rear external perspective view thereof. In FIG.1 (b), the display of the cold water unit and the ozone decomposer which are externally attached to the ozone water endoscope disinfector is omitted. The ozone water endoscope disinfection machine immerses the endoscope, which is the object of disinfection, in the disinfection tank filled with ozone water, circulates the ozone water in the disinfection tank, and removes the ozone water from the endoscope. The endoscope is cleaned and disinfected by flowing through the inside.

  Referring to FIG. 1, the ozone water endoscope disinfecting machine 1 includes, for example, a vertically long rectangular parallelepiped outer casing 2 as a whole, and opens upward on the upper surface of the outer casing 2 around the rear edge. A lid 3 that can be mounted is attached. When the lid 3 is opened, the sterilization tank 4 disposed inside the outer case 2 opens upward, and the endoscope 5 that is the object of sterilization can be inserted and installed in the sterilization tank 4 from above. It is. The front portion of the disinfection tank 4 in the exterior case 2 is a transparent window 6, and the state inside the disinfection tank 4 can be visually observed 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 serves as both 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 performed. The progress status of the work is displayed. On the side of the touch panel 7, a water flow confirmation window 8 is provided for visually confirming whether water is flowing normally during the disinfection process.

  A power switch 11 and a power inlet 12 are arranged in parallel at the upper central portion of the back surface of the outer case 2. A water supply port 14 for supplying tap water (supply water) used as raw water for generating ozone water is disposed at a portion on one end side in the upper portion of the back surface. A cold water supply port 15 is disposed below the water supply port 14. Cold water used for temperature adjustment of raw water for generating ozone water is supplied from the cold water unit 16 to the cold water supply port 15. The cold water unit 16 cools the tap water to generate cold water.

  An oxygen supply port 17 to which oxygen used for ozone generation is supplied is disposed at the other end side portion of the back surface of the outer case 2. Oxygen is supplied to the oxygen supply port 17 from an oxygen cylinder (see FIG. 2) or from a hospital oxygen pipe in a hospital or the like. A drain port 18 for discharging ozone water after being used for the disinfection treatment is disposed on the lower side of the back surface. The ozone water discharged from the drain outlet 18 after the disinfection process is completed is discharged through the ozone decomposer 19. Further, an exhaust port 20 is formed in a portion of the back surface of the outer case 2 opposite to the drain port, and ozone gas emitted from the disinfection tank 4 is decomposed through a built-in ozone decomposition unit (not shown). It is discharged as oxygen gas.

  FIG. 2 is a schematic configuration diagram of an ozone water endoscope disinfection system configured around the ozone water endoscope disinfector 1. Inside the ozone water endoscope disinfecting machine 1, a disinfecting tank 4 for cleaning and disinfecting the endoscope 5 is arranged. The ozone water 22 is supplied from the ozone water generation unit 21 to the sterilization tank 4. For example, 20 liters of ozone water having a predetermined concentration is supplied.

  The raw water for generating ozone water is supplied water supplied from the outside, usually tap water 23. The tap water 23 is supplied from the water supply port 14 to the mixer 26 through the filter 24 and the on-off valve 25. A water temperature meter 27 for detecting the temperature of the tap water 23 is attached to the water supply path. The tap water 23 is supplied to the cold water unit 16, cooled to cold water 28 having a temperature lower than the set temperature, for example, 5 ° C., and stored in the cold water unit 16. Cold water 28 is supplied from the cold water unit 16 to the mixer 26 via an on-off valve 29 as necessary.

  In the mixer 26, when the tap water 23 is higher than the set temperature, the cold water 28 is taken from the cold water unit 16, and the tap water 23 and the cold water 28 are mixed to generate raw water for generating ozone water at a set temperature, for example, 20 ° C. 30 is generated. The generated raw water 30 having the set temperature is supplied to the ozone water generation tank 21 a of the ozone water generation unit 21.

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

  The ozone water generation tank 21a of the ozone water generation unit 21 is a tank of approximately the same capacity as the disinfection tank 4, for example, a 20 liter tank. After the raw water of the set temperature supplied from the mixer 26 is accumulated in the ozone water generation tank 21a, the ozone gas 31 is injected from the ozonizer 32 into the raw water 30. Thereby, ozone melt | dissolves in raw | natural water and the ozone water 22 of predetermined concentration is produced | 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 ozone water 22 having a set concentration is generated in the ozone water generation tank 21a, the ozone water 22 is supplied to the disinfection tank 4 via the ozone water supply pipe 34 and the supply pump 35. In the sterilization tank 4, the endoscope 5, which is a sterilization target, is set in advance in a state of being immersed in ozone water 22 in the sterilization tank 4.

  In the disinfection process, the endoscope 5 is cleaned and disinfected while circulating the ozone water 22 in the disinfection tank 4 through the circulation pipe 36 and the circulation pump 37. In addition, although illustration is abbreviate | omitted, in order to let ozone water 22 pass into the inside of the endoscope 5, a tube is connected to the air supply / water supply port and forceps port of the endoscope 5, and the inside is connected through these tubes. Ozone water flows through the inside of the endoscope 5.

  The concentration of ozone water circulating through the disinfection 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 branch tube 39 for supplying ozone gas. Thereby, the ozone concentration of the ozone water 22 is maintained at the set concentration. Further, the ozone gas discharged from the disinfection tank 4 during the disinfection treatment is decomposed through the ozone decomposition unit 41 and becomes oxygen gas and is discharged outside through the exhaust port 20.

  After the disinfection process is completed, the ozone water 22 in the disinfection tank 4 can be discharged to a predetermined drain pipe 43 through the drain pipe 42 and the ozone decomposer 19. The ozone decomposer 19 is filled with ozone decomposition products such as activated carbon and decomposes ozone contained in the discharged ozone water.

  Here, the drive control of each part is performed by the sterilizer control unit 50. For example, the sterilizer control unit 50 is configured mainly with a microcomputer, and by executing a program installed in advance, each part is driven and controlled to perform various operations.

  The control unit 50 functions as a concentration control unit 50a, a water temperature control unit 50b, a time control unit 50c, and the like. The concentration control unit 50 a performs a control operation for maintaining the ozone concentration of the ozone water 22 in the sterilization tank 4 so as to be a default value or a set concentration set and input from the touch panel 7. The water temperature control unit 50b performs a control operation of adjusting the temperature of the raw water 30 generated by the mixer 26 to a default value or a set temperature set and input from the touch panel 7, for example, 20 ° C. The time control unit 50 c controls the sterilization process time with the ozone water 22 in the sterilization tank 4 to be a default value or a set time set and input from the touch panel 7.

  Next, in this example, the cold water unit 16 is a unit externally attached to the ozone water endoscope disinfecting machine 1 (ozone water disinfecting machine main body), and can be connected and used as necessary. It is also possible to incorporate the cold water unit 16 into the ozone water endoscope disinfector 1. The cold water unit 16 includes a cold water tank 61, and tap water 23 is supplied as raw water for generating ozone water through a water supply pipe 62 and a filter 63 (first filter). The raw water stored in the cold water tank 61 is circulated through the chiller 65 by the circulation pump 64, whereby cold water 28 having a temperature lower than the set temperature, for example, 5 ° C. is obtained in the cold water tank 61.

The cold water unit 16 includes a control unit 66. The controller 66 operates in conjunction with the sterilizer control unit 50. The controller 66 can control the amount of stored water to be constant based on a liquid level sensor 67 attached to the cold water tank 61. Further, based on the measured 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 10 liters, for example.

  Here, in the ozone water endoscope disinfecting machine 1 of this example, the filter 24 (second filter) for filtering the tap water directly supplied to the mixer 26 and the tap water 23 for generating cold water are provided. As the filter 63 (first filter) for filtering, filters having different filtration capacities and capacities are used. Specifically, the filter 63 used for generating cold water is a filter having a small capacity and a high filtration capacity. The other filter 24 is a filter having a lower filtering capacity than the filter 63.

  The filter 63 filters the tap water 23 to generate the cold water 28, and the tap water 23 may be filtered at a small flow rate over time. Therefore, even if the filtering ability of the filter 63 is increased (even if the eyes are narrowed down), the processing flow rate per unit time can be reduced. Therefore, a small filter with a small processing flow rate can be used as the filter 63. it can.

  On the other hand, since the tap water 23 supplied directly to the mixer 26 flows at a large flow rate for a short time before the disinfection treatment, it is necessary to use a large-capacity filter having a large treatment flow rate per unit time. is there. If this filter 24 is a fine filter and has a high filtration capacity, it is necessary to increase the size in order to secure the processing flow rate, resulting in an increase in the size and cost of the apparatus. The filter 24 of this example is rough and has a low filtration capacity. Therefore, since the filter 24 can be made smaller as compared with the case where a fine filter is used as the filter 24 and a filter having a high filtering capacity is used, the apparatus can be increased in size and cost.

  In addition, although the water quality of the tap water 23 supplied via the filter 24 falls by having reduced the filtration capability, since it mixes with the cold water 28 with high water quality in the mixer 26, the water quality which does not have trouble in practical use. Raw water is obtained. For example, when the mixing ratio is 1: 1, the impurity concentration of raw water obtained in the mixer 26 can be reduced to half of the tap water 23 supplied to the mixer 26 via the filter 24.

(Example of operation mode)
In the case of using the ozone water endoscope disinfecting machine 1 configured as described above as a high-level disinfecting machine so that tuberculosis germs can be disinfected, for example, each unit is controlled by the following operation mode under the control of the disinfecting machine control unit 50. Works.

  For example, the disinfection conditions are such that the ozone water concentration is 3 ppm and the treatment time is 5 minutes so that tuberculosis bacteria can be disinfected. The set temperature is 20 ° C. For example, when the power switch 11 is turned on, the cold water unit 16 attached to the ozone water endoscope disinfecting machine 1 starts a cold water generating operation, and for example, a predetermined amount of cold water of 5 ° C. is supplied to the cold water tank 61. Accumulate.

  When a disinfection command is input, the disinfector control unit 50 opens the on-off valve 25, and tap water 23 whose temperature is not adjusted is supplied to the mixer 26 via the filter 24 as raw water for generating ozone water. Start the capture operation. Further, the intake amount of the cold water 28 from the cold water unit 16 is controlled based on the temperature of the tap water 23 detected by the water temperature gauge 27.

  When the water temperature of the tap water 23 is significantly higher than the set temperature (20 ° C.), such as in summer, the on-off valve 29 is controlled to increase the mixing ratio of the cold water 28 to the tap water 23. On the other hand, when the water temperature of the tap water 23 is slightly higher than the set temperature, the mixing ratio of the cold water 28 to the tap water 23 is decreased. Further, when the water temperature of the tap water 23 is lower than 20 ° C. as in winter, the cold water 28 is not taken in.

  The raw water 30 having a set temperature generated in the mixer 26 is supplied to the ozone water generation tank 21 a of the ozone water generation unit 21. For example, 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 the raw water 30 is accumulated in the ozone water generation tank 21a, and the ozone gas is dissolved in the raw water 30 to generate the ozone water 22 The operation to generate is performed. 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 around 3 ppm which is the set concentration.

  After a predetermined amount of ozone water 22 having a set concentration is generated, the sterilizer control unit 50 supplies the ozone water 22 to the sterilization tank 4 in which the endoscope 5 to be sterilized is set. On the disinfection tank 4 side, the circulation pump 37 is driven to start 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 from the ozonizer 32 into the disinfecting tank 4 and the ozone concentration is adjusted to the set concentration. In the state where the ozone concentration has reached 3 ppm, the sterilization process of the endoscope 5 is performed for the set sterilization time (5 minutes).

  When it is detected by the built-in timer or the like that the sterilization time of 5 minutes has elapsed, the sterilization process is terminated, and a discharge operation for discharging the ozone water 22 from the sterilization tank 4 is performed.

  In addition, when ozone concentration lower than 3 ppm is set as disinfection conditions and the temperature lower than 20 degreeC is set as water temperature, the raw | natural water 30 of setting water temperature is produced | generated in the mixer 26, and the ozone water production | generation tank 21a In the ozone water generation tank 21a, ozone water 22 having a set concentration and a set water temperature is generated.

Further, in the above example, the operation of storing raw water in the ozone water generation tank 21a is started after the disinfection process is started. However, in order to shorten the processing time, it is desirable to advance the process. For example, it is desirable to perform operation control as in the following procedure.
a) For example, when the power is turned on in the morning, the ozone water endoscope disinfecting machine 1 starts producing cold water 28.
b) When a predetermined amount of cold water 28 is produced, raw water of a predetermined temperature is generated in the mixer 26, and the raw water is supplied to the ozone water generation tank 21a to start making ozone water. In parallel with this, tap water is supplied to the cold water tank 61 to start making cold water 28 for the next ozone water production.
c) When the disinfection button is pressed, the ozone water 22 previously prepared in the ozone water generation tank 21a is supplied to the disinfection tank 4, and the disinfection with the ozone water is immediately started. In parallel with this, in the ozone water generation tank 21a, the supply of the raw water 30 is started and the ozone water for the next disinfection is started. At the same time, in the cold water unit 16, the supply of tap water to the cold water tank 61 is started, and the cold water 28 for the next ozone water production is started.

  As described above, the ozone water endoscope disinfector 1 is provided with a water temperature adjustment mechanism for ozone water. When the temperature of the tap water 23 used as raw water in summer is high, the tap water 23 can be lowered to, for example, 20 ° C. or less. As a result, high-concentration ozone water necessary for high-level disinfection can be generated in a shorter time compared to the case of generating tap water having a high temperature. Therefore, it is possible to efficiently perform high-level disinfection of medical instruments such as endoscopes without significantly increasing the processing time.

  Further, the water temperature control unit 50b controls the temperature of the ozone water to 20 ° C. Thereby, it can suppress that material deterioration arises in the disinfection target object by being exposed to the high concentration ozone water of a high temperature state.

Further, in the cold water unit 16, cold water 28 cooled in advance to a temperature lower than the set temperature is stored in the cold water tank 61 in advance. Moreover, in the mixer 26, the temperature of the ozone water 22 produced | generated is controlled to become preset temperature by mixing the tap water 23 and the cold water 28 which are not temperature-controlled. By using the cold water 28 prepared in advance, the temperature control of the raw water 30 and thus the temperature control of the generated ozone water 22 can be efficiently performed in a short time.

(Another example of water temperature adjustment mechanism)
FIG. 3 is an explanatory view showing another configuration example of the water temperature adjusting mechanism. In this figure, only the parts different from the structure shown in FIG. 2 are shown, and the display of other parts having the same structure is omitted.

  In the raw water temperature adjustment mechanism shown in this figure, the mixer is omitted, and the tap water 23 and the cold water 28 are directly supplied to the ozone water generation tank 21 a of the ozone water generation unit 21. Since the other parts have the same configuration as in FIG. 2, the same reference numerals are given to the portions corresponding to the respective parts in FIG.

  In this case, the tap water 23 and the cold water 28 are mixed in the ozone water generation tank 21a to generate raw water having a set temperature. For example, when the temperature of the tap water 23 is higher than the set temperature, first, a predetermined amount of the tap water 23 is added. Next, cold water 28 is added to adjust the temperature. On the contrary, the temperature can be adjusted by first adding a predetermined amount of cold water 28 and then adding tap water 23.

(Other embodiments)
In the above embodiment, the temperature of the ozone water 22 supplied into the disinfection tank 4 is not directly controlled. In general, the ozone water endoscope disinfector 1 is mostly used in a place where the environmental temperature is kept constant, such as in a hospital, and the temperature of the ozone water supplied to the disinfection tank 4 varies greatly. Very unlikely. Therefore, if the temperature of raw | natural water is managed, the ozone water temperature in the disinfection tank 4 can be managed substantially. Of course, it is also possible to detect the temperature directly in the sterilization tank 4 with a water thermometer or the like and control the temperature.

DESCRIPTION OF SYMBOLS 1 Ozone water endoscope disinfector, 2 exterior case, 3 lid, 4 disinfection tank, 5 endoscope, 6 windows, 7 touch panel, 8 water flow confirmation window, 11 power switch, 12 power inlet, 14 water inlet, 15 cold water Supply port, 16 Cold water unit, 17 Oxygen supply port, 18 Drain port, 19 Ozone decomposer, 20 Exhaust port, 21 Ozone water generation unit, 21a Ozone water generation tank, 22 Ozone water, 23 Tap water, 24 Filter, 25 Open / close Valve, 26 Mixer, 27 Water thermometer, 28 Cold water, 30 Raw water, 31 Ozone gas, 32 Ozonizer, 33 Oxygen cylinder, 34 Ozone water supply pipe, 35 Supply pump, 36 Circulation pipe, 37
Circulation pump, 38 ozone water concentration meter, 39 branch pipe for supplying ozone gas, 41 ozone decomposition unit, 43 drainage pipe, 50 disinfector control unit, 50a concentration control unit, 50b
Water 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 thermometer

Claims (5)

A disinfection tank in which disinfection objects are disinfected using ozone water;
A water temperature adjusting mechanism for adjusting raw water for generating the ozone water supplied to the disinfecting tank to a set temperature or lower;
Have
The water temperature adjusting mechanism is
A cold water tank for storing cold water cooled to be lower than the set temperature;
A mixer that mixes the supply water supplied from the outside with the cold water supplied from the cold water tank to generate the raw water adjusted to the set temperature or lower,
A chiller that cools the supply water to be lower than the set temperature to generate the cold water, and
further,
A first filter that filters the feed water used to produce the cold water;
A second filter for filtering the water supplied to the mixer;
With
The ozone water disinfector according to claim 1, wherein the first filter has a higher filtering capacity than the second filter . It has a cold water unit detachably connected to the ozone water disinfector body,
The cold unit, the chilled water tank, the chiller, the first filter, and an ozone disinfection machine according cold water in the cold water tank in claim 1, further comprising a circulation pump for circulating through the chiller.   2. The ozone water disinfection according to claim 1, wherein the water temperature adjustment mechanism includes a control unit that adjusts a mixing ratio of the supply water and the cold water in the mixer based on a temperature of the supply water and a temperature of the cold water. Machine.   The ozone water disinfector according to claim 1, wherein the mixer is an ozone water generation tank to which ozone gas is supplied.   The ozone water disinfector according to claim 1, wherein the set temperature is 20 ° C.

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