JP4857438B2 - Cleaning sterilizer - Google Patents

Description

  The present invention relates to a cleaning and sterilization apparatus used when cleaning and sterilizing an object to be cleaned such as a medical instrument.

  In hospitals and the like, medical instruments used for treatment are cleaned and sterilized for reuse.

  Patent Document 1 discloses that superheated steam generated by a superheated steam generator is sent to a heat treatment machine containing used medical instruments and the like, and superheated steam is jetted onto them.

  In Patent Document 2, a processed object is stored in a heat-insulated sealed housing, water vapor is supplied into the housing to discharge the air in the housing, the inside of the housing is cooled by a cooling coil or the like, and the inside of the housing is negatively charged. In this way, the temperature of the housing and the processed product is increased, and the gas is vented, and then the water is supplied to the negative pressure housing to heat the processed product to sterilize or sterilize. It is disclosed to cool again to a negative pressure and dry the treatment.

  Patent Document 3 includes a treatment chamber in which medical waste is charged and heated, a combustion chamber having fuel combustion means for heating water or steam to generate superheated steam, and a combustion chamber thereof. Superheated steam supply means for sending superheated steam to the processing chamber, a jacket surrounding at least a part of the processing chamber and forming a jacket space surrounding at least a part of the processing chamber between the outer wall of the processing chamber, the jacket and the combustion chamber There is disclosed a medical waste treatment apparatus including a combustion gas introduction path for introducing combustion gas generated by fuel combustion means into a jacket space.

  In Patent Document 4, in a steam sterilizer that performs a post-treatment process for drying a material to be sterilized after a sterilization process for sterilizing a material to be sterilized stored in a sterilization tank, It is disclosed that steam is introduced into the sterilization tank and the sterilization tank is filled with superheated steam.

  Patent Document 5 discloses a steam sterilization apparatus including a saturated steam generator that supplies saturated steam to a sterilization chamber that accommodates an object to be sterilized. In the saturated steam generator, solid heat storage materials having different particle diameters are solid heat storage. An electric heater that heats the heat storage material composed of the solid heat storage material and the liquid heat storage material, and a heat transfer tube that superheats the supplied water and discharges superheated steam are arranged in the heat storage unit that is filled with the material and the liquid heat storage material. And a saturated steam generation tank for generating saturated steam by heating the stored water using the superheated steam discharged from the heat transfer tube as a heating source and generating saturated steam. What is provided with the supply piping which supplies the saturated water vapor | steam produced | generated with the tank to a sterilization chamber is disclosed.

Patent Document 6 discloses a medical instrument cleaning / disinfecting apparatus for cleaning a medical instrument, a cleaning / disinfecting chamber for disposing the medical instrument, a cleaning / disinfecting chamber door for opening / closing the cleaning / disinfecting chamber, and a medical instrument disposed in the cleaning / disinfecting chamber. A nozzle for injecting a cleaning liquid, a pump for transferring the cleaning liquid to the nozzle, and a heater for heating the liquid for steam are controlled so as not to drive the heater and the pump at the same time so as to reduce power consumption. ing.
JP 2001-187118 A JP-A-5-131019 JP 2004-129993 A JP-A-9-206359 JP 2002-17825 A JP 2003-135568 A

  An object of the present invention is to enable cleaning and sterilization of a sterilized article to be cleaned in a compact space.

The cleaning and sterilization apparatus according to the present invention for achieving the above object
A cleaning and sterilization tank for storing sterilized materials to be cleaned;
Washing water jetting means for jetting washing water to the sterilized material to be cleaned housed in the cleaning sterilization tank,
Superheated steam generation and supply means for supplying and supplying superheated steam into the cleaning sterilization tank;
Equipped with a,
The superheated steam generation and supply means includes a superheated steam generation heater that heats the steam to generate superheated steam .

  According to the above configuration, in the single cleaning sterilization tank, in addition to performing cleaning by injecting cleaning water onto the sterilized material to be cleaned by the cleaning water injection unit, cleaning is performed by the superheated steam generation supply unit. By generating and supplying superheated steam into the sterilization tank, the sterilized product to be cleaned can be sterilized. Therefore, both the cleaning and sterilization of the sterilized product to be cleaned can be performed in a compact space.

  The present invention generates the superheated steam in the cleaning sterilization tank by the superheated steam generation and supply means after the cleaning water jetting means sprays the cleaning water on the sterilized material to be cleaned in the cleaning sterilization tank. It may further include an operation control unit that performs operation control so as to supply and sterilize the sterilized material to be cleaned.

  In the present invention, cleaning and sterilization of the sterilized material to be cleaned may be performed manually. However, according to the above configuration, the operation control unit continuously controls the operation of the cleaning water injection unit and the superheated steam generation and supply unit. Therefore, cleaning and sterilization of the sterilized material to be cleaned can be performed as a series of processes.

  In this case, according to the present invention, after the operation control unit sterilizes the sterilized material to be cleaned, the rinsing water is sprayed on the sterilized material to be cleaned in the cleaning sterilization tank by the cleaning water jetting unit. It may be configured as described above.

  According to said structure, in addition to washing | cleaning and sterilization of a to-be-washed | sterilized thing, the rinse washing | cleaning can also be performed.

  Further, in the present invention, after the operation control unit rinses and cleans the sterilized material to be cleaned, the superheated steam generation and supply means generates and supplies superheated steam into the cleaning and sterilization tank to dry the sterilized material to be cleaned. It may be configured as follows.

  According to said structure, in addition to washing | cleaning of a to-be-washed | sterilized thing, sterilization, and a rinse washing, the drying can also be performed.

  The present invention may further comprise a water storage tank for storing both the washing water supplied to the washing water injection means and the superheated steam generation and supply means supplied to the superheated steam generation and supply means. Good.

  According to said structure, a single water tank can be used as a water source of both a washing | cleaning use and a sterilization use.

  In this case, according to the present invention, the water storage tank is provided with an overflow prevention pipe that drains excess water from the opening of the pipe end when the pipe end opens upward and the water level becomes equal to or higher than the pipe end position. It may be a thing.

  According to said structure, when a water level becomes more than the pipe end position of an overflow prevention pipe, since excess water is drained from the opening of the pipe end, the overflow of the water of a water storage tank can be prevented.

  In the present invention, a drain pipe extending from the water storage tank may be introduced into an opening at a pipe end of the overflow prevention pipe.

  According to said structure, since the drained water will pass the position higher than the water surface of the water in a water tank, the water in a water tank can be drained efficiently.

  In the present invention, the water tank may be provided with upper and lower heaters for heating the water in the water tank above and below the water tank.

  According to the above configuration, since the upper and lower heaters are arranged vertically in the water tank, the water tank according to the purpose of heating the washing water, generating water vapor, etc. by properly using these usage modes The water in the inside can be heated.

  In this case, according to the present invention, the lower heater may have a larger maximum output than the upper heater.

  According to said structure, an upper heater can be properly used for the production | generation of water vapor | steam, and a lower heater can be used for the heating of the whole water in a water tank.

  In the present invention, the water storage tank may be provided on the lower side of the cleaning sterilization tank so that the water level in the water storage tank is exposed in the cleaning sterilization tank.

  According to said structure, since the water surface of the water in a water tank is exposed in a washing | cleaning sterilization tank, the water temperature of the water in a water tank when starting the production | generation of superheated steam is more than predetermined temperature (for example, 85 degreeC or more 93) When the superheated steam is supplied into the cleaning sterilization tank under the condition of the temperature within the range of less than 0 ° C., in addition to the upper and / or lower heaters, the superheated steam comes into contact with the heat in the water tank. Water is heated to a temperature sufficient for sterilization of bacteria (for example, 93 to 100 ° C.), and water containing bacteria accumulated in the water storage tank after washing with hot water is sterilized at high temperature. Therefore, it is not necessary to separately heat the water contaminated with bacteria in the water tank only by the upper and / or lower heaters and sterilize at a high temperature, so that energy saving can be achieved.

In the present invention, specifically, the superheated steam generation heater is provided in a superheated steam generation chamber formed adjacent to the cleaning sterilization tank through an internal partition wall having a communication structure with the cleaning sterilization tank. is configured to generate a superheated steam by heating the steam flowing from the cleaning sterilization tank, the superheated steam generator feed means, said al provided overheating the steam generating chamber are, generated by the superheated steam generation heater It may include a superheated steam supply fan that supplies superheated steam into the cleaning sterilization tank.

  According to the above configuration, the steam generated by heating water in the water storage tank flows into the superheated steam generation chamber through the cleaning sterilization tank, and the superheated steam generation heater is removed from the cleaning sterilization tank in the superheated steam generation chamber. The inflowing steam is heated to generate superheated steam, and the superheated steam supply fan supplies the superheated steam into the cleaning sterilization tank.

  In the present invention, the superheated steam generation chamber may be provided with a superheated steam exhaust passage communicating with the outside of the apparatus.

  According to the above configuration, the superheated steam exhaust passage communicating with the outside of the apparatus extends from the superheated steam generation chamber, so that the superheated steam exhaust passage extends from the cleaning sterilization tank. At this time, there is no risk of the wash water leaking outside the apparatus through the superheated steam exhaust passage, and therefore, water contaminated with bacteria does not leak outside the apparatus.

  According to the present invention, a water shutter structure is provided that connects the water storage tank with a ventilation path between the cleaning sterilization tank and the outside of the apparatus if the water level is lower than a certain level, and blocks the ventilation path when the water level is higher than the certain water level. It may be.

  Since superheated steam is supplied to the cleaning sterilization tank, a valve for communicating with the outside of the apparatus is required to have high heat resistance, but according to the above configuration, a water shutter structure is configured in the water storage tank. Therefore, it is possible to easily switch between communication and blocking of the air passage to the outside of the apparatus of the cleaning sterilization tank by a simple operation of raising and lowering the water level without requiring a high heat resistant valve.

  In the present invention, a cooling fan for introducing outside air into the cleaning sterilization tank may be provided in the air passage.

  According to said structure, cooling in a washing | cleaning sterilization tank can be performed rapidly.

  In the present invention, the cooling fan may be provided in a position not facing the water in the water storage tank in the air passage.

  Although the cleaning sterilization tank has a high-temperature atmosphere, according to the above configuration, the cooling fan is provided at a position that does not face the water in the water storage tank in the air passage. Is sufficiently cooled in the air passage, so that the cooling fan can be prevented from being damaged by the influence of heat.

  In the present invention, a filter may be provided in the air passage.

  In the present invention, the water storage tank may have a reduced diameter communication portion that extends in the vertical direction so as to communicate with the cleaning and sterilization tank and is reduced in a neck shape provided with an upper heater.

  According to said structure, since the water which appeared in the limited diameter reduction communication part will be heated by an upper heater, and a water vapor | steam will be produced | generated, a water vapor | steam can be produced | generated efficiently.

  Specifically, in the present invention, the washing water jetting means is formed in a hollow rod shape provided above and below the washing sterilization tank, each having a plurality of water jetting holes drilled at intervals in the length direction. The upper and lower rotary injection nozzles rotate so as to inject the cleaning water from the plurality of water injection holes by the water pressure of the supplied cleaning water and to spray the cleaning water into the cleaning sterilization tank. It may be a thing.

  In this case, the present invention may be configured such that the upper and lower rotary spray nozzles rotate at different speeds and / or in opposite directions.

Further, another cleaning and sterilization apparatus according to the present invention is as follows.
A cleaning and sterilization tank for storing sterilized materials to be cleaned;
Washing water jetting means for jetting washing water to the sterilized material to be cleaned housed in the cleaning sterilization tank,
Superheated steam generation and supply means for supplying and supplying superheated steam into the cleaning sterilization tank;
A water storage tank for storing both the water for washing water supplied to the washing water injection means and the water for superheated steam supplied to the superheated steam generation and supply means;
After the cleaning water jetting means sprays the water in the water storage tank as cleaning water on the sterilized material to be cleaned in the cleaning sterilization tank, the water is stored in the cleaning sterilization tank by the superheated steam generation and supply means. An operation control unit that performs operation control so as to sterilize the sterilized material to be cleaned by generating and supplying superheated steam from the water in the tank,
With
The superheated steam generation and supply means includes a heater for generating superheated steam that heats steam and generates superheated steam,
The operation control unit sterilizes the sterilized material to be cleaned, and then rinses and cleans the sterilized material to be cleaned in the cleaning sterilization tank by rinsing the sterilized material in the cleaning sterilization tank with rinsing water. It is comprised by these.

  According to the above configuration, in the single cleaning sterilization tank, in addition to performing cleaning by injecting cleaning water onto the sterilized material to be cleaned by the cleaning water injection unit, cleaning is performed by the superheated steam generation supply unit. By generating and supplying superheated steam into the sterilization tank, the sterilized product to be cleaned can be sterilized. Therefore, both the cleaning and sterilization of the sterilized product to be cleaned can be performed in a compact space. In addition, after the sterilized product to be cleaned is sterilized, the sterilized product to be cleaned can be rinsed using the cleaning water jetting means used for cleaning and water in the water storage tank.

  In another aspect of the present invention, after the operation control unit rinses and cleans the sterilized material to be cleaned, the superheated steam generation and supply means generates and supplies superheated steam from the water in the water storage tank into the cleaning and sterilization tank. The sterilized product may be configured to be dried.

  According to the above configuration, in addition to the above, after rinsing and washing the sterilized material to be cleaned, the sterilized material to be cleaned is dried using superheated steam generation and supply means used for sterilization and water in the water storage tank. Can also be done.

  In the present invention, the sterilized product to be cleaned is not particularly limited, and examples thereof include medical instruments.

  The cleaning and sterilization method according to the present invention is for cleaning and sterilizing medical instruments using the cleaning and sterilizing apparatus of the present invention.

  According to the present invention and other present invention, in a single cleaning sterilization tank, in addition to being able to perform the cleaning by spraying the cleaning water on the sterilized material to be cleaned by the cleaning water spraying means, Sterilized objects to be cleaned can be sterilized by generating and supplying superheated steam into the cleaning sterilization tank by the superheated steam generation and supply means, and therefore, both cleaning and sterilization of the sterilized objects to be cleaned are performed in a compact space. be able to.

  Hereinafter, embodiments will be described in detail with reference to the drawings.

(Embodiment 1)
<Configuration of cleaning sterilizer>
1 to 3 show a cleaning sterilization apparatus 10 according to the first embodiment.

  This cleaning sterilization apparatus 10 performs cleaning in a single cleaning sterilization tank 11 by injecting cleaning water onto a sterilized object to be cleaned such as a medical instrument, and overheats in the cleaning sterilization tank 11. By generating and supplying water vapor, the sterilized product to be cleaned can be sterilized. Further, the rinse water is sprayed by rinsing water, and superheated steam is generated and supplied again into the cleaning sterilization tank 11. Accordingly, the sterilized product to be cleaned can be dried, and therefore, the sterilized product to be cleaned can be cleaned, sterilized, rinsed and dried in a compact space.

  The cleaning and sterilizing apparatus 10 has an outer shape formed in a vertically long box shape, and has a horizontally long rectangular opening and closing door 13 for opening and closing the cleaning and sterilizing tank 11 in the apparatus main body 12 on the front side and an operation control operation. Operation panels 14 are provided on the upper and lower sides, respectively.

  The open / close door 13 has a handle 13a extending along the upper side attached to the upper part, and the lower part is pivotally supported by the apparatus main body 12. When the handle 13a is pulled toward the front, the handle 13a is tilted to the front side. While the cleaning sterilization tank 11 in the main body 12 is in an open state, when it is returned to the rear side, the cleaning sterilization tank 11 is tilted to the apparatus main body 12 side so that the cleaning sterilization tank 11 is in a closed state. The open / close door 13 can be tilted in the range from the vertical position in the closed state to the horizontal position, and is configured to maintain the horizontal state in the horizontal position. It can be used as a mounting table when a later-described cleaning sterilization basket 15 is taken in and out. In addition, the opening / closing door 13 is provided with a sealing material so that the cleaning sterilization tank 11 is sealed.

  The operation panel 14 includes a main power switch, various operation switches, a water temperature setting unit, a steam temperature setting unit, a lamp indicating an operation state, and the like. Each part of the operation panel 14 is connected to an operation control unit (not shown) configured by a computer provided in the apparatus main body 12.

  The cleaning sterilization tank 11 is formed to have a capacity of 15 to 25 L, for example, and is configured such that a dedicated cleaning sterilization basket 15 for storing a sterilized object to be cleaned such as a medical instrument can be taken in and out. The inner wall of the cleaning sterilization tank 11 is made of a metal such as stainless steel, and a heat insulating material is provided outside the tank.

  Upper and lower rotary spray nozzles (cleaning water spraying means) 16 and 17 are provided above and below the cleaning sterilization tank 11, respectively. Each of the upper and lower rotary spray nozzles 16, 17 has a rod-shaped nozzle body 16 a, 17 a and an intermediate part between the nozzle body 16 a, 17 a and a fixed part 16 b fixed to the cleaning sterilization tank 11, 17b. The nozzle bodies 16a and 17a are formed hollow and have a plurality of water injection holes perforated at intervals along the length direction. The fixing portions 16b and 17b support the nozzle bodies 16a and 17a so as to be rotatable around the fixing portions 16b and 17b, and are formed with water supply passages communicating with the hollows of the nozzle bodies 16a and 17a. ing. When the cleaning water or the rinsing water is supplied to the nozzle main bodies 16a and 17a via the fixed portions 16b and 17b, the upper and lower rotary injection nozzles 16 and 17 respectively cause the nozzle main bodies 16a and 17a to be moved by the water pressure. Water is jetted from a plurality of water jet holes and rotated to spray water into the cleaning sterilization tank 11. The upper and lower rotary spray nozzles 16 and 17 are configured such that the nozzle bodies 16a and 17a rotate in mutually different speeds and / or in opposite directions.

  A tank temperature sensor (not shown) is provided in the cleaning sterilization tank 11, and the tank temperature sensor is connected to the operation control unit.

  A superheated steam generation chamber 19 formed adjacent to the cleaning sterilization tank 11 through an internal partition wall 18 is provided in the apparatus main body 12.

  The superheated steam generation chamber 19 has a capacity of 2 to 4 L, for example. In the inner partition 18, upper and lower openings 20 and 21 that communicate with the cleaning sterilization tank 11 and the superheated steam generation chamber 19 are formed so as to extend in the lateral direction at the upper and lower portions.

  The superheated steam generation chamber 19 is provided with a superheated steam generation heater 22 in the upper part and a superheated steam supply fan 23 in the lower part. The heater 22 for generating superheated steam is composed of, for example, an electric heater with a maximum output of 750 W, and is connected to the operation control unit. The superheated steam supply fan 23 is formed as a long object having a shaft portion 23a having substantially the same length as the lower opening portion 21 of the internal partition wall 18 and a blade portion 23b provided so as to extend laterally. It is arranged along the lower opening 21. The shaft portion 23a of the superheated steam supply fan 23 is coupled to a drive motor (not shown), and the drive motor is connected to the operation control unit. When the steam flows into the superheated steam generation chamber 19 mainly from the upper opening 20, the superheated steam generation chamber 19 heats the steam to generate superheated steam, and the steam supply fan Is configured to supply the superheated steam from the lower opening 21 to the cleaning sterilization tank 11. Therefore, the superheated steam generation heater 22 and the superheated steam supply fan 23 constitute superheated steam generation means.

  As shown in FIG. 4, the superheated steam generation chamber 19 is provided with a superheated steam guide 24 configured to form a slight interval from the rotation trajectory at the corner behind the steam supply fan, Thereby, the superheated steam is efficiently supplied to the cleaning sterilization tank 11 without staying in the corner of the superheated steam generation chamber 19. Further, as shown in FIG. 4, the inner partition wall 18 is provided with a flange 25 that protrudes toward the cleaning sterilization tank 11 on the upper side of the lower opening 21, whereby superheated steam is allowed to flow into the lower opening. It is suppressed from rising immediately after exiting 21, and superheated steam is blown out in the lateral direction so as to spread throughout the cleaning sterilization tank 11. Further, the superheated steam generation chamber 19 is provided with a superheated steam exhaust passage 26 that extends to the outside of the apparatus and communicates with the outside of the apparatus, and the superheated steam exhaust path 26 extends from the cleaning sterilization tank 11. Thus, there is no risk that the cleaning water leaks to the outside of the apparatus through the superheated steam exhaust passage 26 at the time of cleaning, so that the water contaminated with bacteria is prevented from leaking to the outside of the apparatus.

  A water storage tank 27 is provided below the cleaning sterilization tank 11. The single water storage tank 27 is composed of water for washing water and rinse water supplied to the upper and lower rotary spray nozzles 16 and 17 and superheated steam supplied to the superheated steam generation chamber 19 as heated steam. It is configured to store water for common use, and serves as a water source for cleaning use, rinsing use, sterilization use, and drying use.

  The water storage tank 27 has a configuration in which a device main body inner portion 28 disposed in the device main body 12 and a device main body outer portion 29 disposed outside the device main body 12 are partitioned by a device outer wall 30 that partitions them. . The apparatus outer wall 30 is provided with an apparatus outer wall opening 31 that allows the apparatus main body inner part 28 and the apparatus main body outer part 29 to communicate with each other at a predetermined depth of the water storage tank 27. On the outside of the apparatus main body 12, an apparatus main body outer portion 29 of the water storage tank 27 is further divided into two and a dividing wall 32 extending upward from the water storage tank 27 is provided. A tank vertical wall 33 of the apparatus main body outer portion 29 is coupled to the dividing wall 32, whereby an outer compartment 34 partitioned by the apparatus main body outer portion 29 by the division wall 32 and the tank vertical wall 33 and sealed upward. Is configured. In addition, the dividing wall 32 is provided with a dividing wall opening 35 that allows the inside and outside of the external compartment 34 to communicate with each other at a predetermined depth of the water storage tank 27.

  The device main body inner portion 28 of the water storage tank 27 has a capacity of 3 to 4 L, for example. Upper and lower heaters 36 and 37 are arranged in the upper and lower portions in the apparatus main body portion 28 so that they can be used in different ways, whereby hot water for washing water or rinsing water is used. The water in the water storage tank 27 can be heated according to purposes such as generation and generation of steam for generating superheated steam. The upper heater 36 is composed of, for example, an electric heater with a maximum output of 500 W, and is connected to the operation control unit. The upper heater 36 is provided at a position 5 to 10 mm below the water surface when the water storage tank 27 is full. The lower heater 37 has a higher maximum output than the upper heater 36 from the viewpoint that the upper heater 36 can be used for generating water vapor and the lower heater 37 can be used for heating the entire water in the water storage tank 27. Preferably, for example, it is constituted by an electric heater having a maximum output of 750 W and is connected to the operation control unit.

  A water level sensor (not shown) is provided in the apparatus main body portion 28 slightly above the position of the upper heater 36, and the water level sensor is connected to the operation control unit. Further, a water temperature sensor is provided in the apparatus main body portion 28, and the water temperature sensor is connected to the operation control unit.

  The apparatus main body portion 28 is provided so that the surface of the water in the water storage tank 27 is exposed in the cleaning sterilization tank 11, so that the temperature of the water in the water storage tank 27 at the start of generation of superheated steam is When superheated steam is supplied into the cleaning sterilization tank 11 under a condition of a predetermined temperature or higher (for example, a temperature in the range of 85 ° C. or higher and lower than 93 ° C.), in addition to the upper and / or lower heaters 36 and 37, The water in the water storage tank 27 is heated to a temperature sufficient for sterilization of bacteria (for example, 93 to 100 ° C.) by contact with the superheated steam, and the water containing the bacteria accumulated in the water storage tank 27 after washing with hot water is sterilized at high temperature. Will be. Therefore, it is not necessary to heat the water contaminated with bacteria in the water storage tank 27 only by the upper and / or lower heaters 36 and 37 separately, so that energy saving can be achieved.

  A water supply pipe 38 extends from the inner part 28 of the apparatus body, and is branched to be connected to the fixed portions 16b and 17b of the upper and lower rotary spray nozzles 16 and 17, respectively. A water supply pump 39 is interposed in the water supply pipe 38 on the upstream side of the branch portion. The water supply pump 39 is connected to the operation control unit.

  The device body outer portion 29 of the water storage tank 27 has a capacity of, for example, 0.1 to 0.2 L. The external compartment 34 of the apparatus main body outer portion 29 is provided with an overflow prevention pipe 40 that extends upward through the bottom of the water storage tank 27 and has a pipe end that opens upward. Since water flows through the device outer wall opening 31 and the dividing wall opening 35, the water level of the water storage tank 27 is constant inside and outside the device main body inner portion 28 and the device main body outer portion 29, but this is the overflow prevention pipe. When the position reaches 40 pipe ends or more, excess water is drained from the opening of the pipe end to prevent the water in the water storage tank 27 from overflowing.

  A water supply pipe 42 provided with an electromagnetic water supply valve 41 is connected to the external compartment 34 of the apparatus main body outer portion 29, and the electromagnetic water supply valve 41 is connected to an operation control unit. Further, a drain pipe 43 extends from the external compartment 34 of the apparatus main body outer portion 29, and the drain pipe 43 is introduced into the opening of the pipe end of the overflow prevention pipe 40 so that the drained water is the water level in the water storage tank 27. Therefore, the water in the water storage tank 27 can be drained efficiently. A drainage pump 44 is interposed in the drainage pipe 43, and the drainage pump 44 is connected to the operation control unit. The water supply pipe 42 and the drain pipe 43 may be provided outside the external compartment 34 of the apparatus main body outer part 29 or may be provided in the apparatus main body inner part 28.

  Between the apparatus main body 12 and the dividing wall 32, it is open | released outside the apparatus above the water storage tank 27, and the filter 45 formed, for example with the nonwoven fabric is provided in the opening end, and it is inside the filter 45 inside. A cooling fan 46 is provided.

  The water storage tank 27 has a water shutter structure, that is, when the water level is below a certain water level and the device outer wall opening 31 is exposed above the water surface, an air passage 47 between the cleaning sterilization tank 11 and the outside of the device is formed in the water storage tank. 27 is communicated via the device outer wall opening 31 and the filter 45, and the inside of the cleaning sterilization tank 11 can be cooled by introducing the outside air into the cleaning sterilization tank 11 through the ventilation path 47 by the rotation of the cooling fan 46. On the contrary, when the water level becomes higher than the certain water level and the device outer wall opening 31 is submerged below the water surface, the air passage 47 is blocked by water. Since superheated steam is supplied to the cleaning sterilization tank 11, a valve for communicating with the outside of the apparatus is required to have high heat resistance, but such a water shutter structure requires a high heat resistance valve. In this case, it is possible to easily switch between communication and blocking of the air passage 47 to the outside of the cleaning sterilization tank 11 by a simple operation of raising and lowering the water level.

  In the water tank 27, the upper ends of the upper heater 36, the water level sensor and the apparatus outer wall opening 31 are provided below the pipe end of the overflow prevention pipe 40, and the upper heater 36 and the water level sensor are opened to the apparatus outer wall. It is provided below the upper end of the part 31.

  Moreover, the structure of the modified example as shown to FIGS. In addition, the part of the same name as the said Embodiment 1 is shown using the same code | symbol.

  In the water storage tank 27 of this modified example, the device main body inner portion 28 is formed in a groove shape extending in the width direction on the front side in the device main body 12, and the device main body outer portion 29 is integrated with the front side of the side surface of the device main body 12. It is comprised in the external box 48 provided in.

  The outer box 48 includes first to third chambers 49, 50, and 51 having a common upper surface portion and a bottom surface portion that is formed to be higher in three stages from the rear to the front.

  The first chamber 49 is provided with an overflow prevention pipe 40 that extends through the bottom and extends upward and has a pipe end that opens upward. A drain pipe 43 extends from the inner part 28 of the apparatus body, and the drain pipe 43 passes through the rear wall of the first chamber 49 and is introduced into the opening at the pipe end of the overflow prevention pipe 40. Further, the first chamber 49 and the second chamber 50 are divided by a dividing wall 32 provided to hang from the upper surface portion, and communicate with each other by a dividing wall opening 35 that is a gap below the dividing wall 32. ing. Therefore, the first chamber 49 constitutes the external compartment 34.

  In the second chamber 50, a device outer wall opening 31 that penetrates the device outer wall 30 on the side surface of the device main body 12 and communicates with the device main body inner portion 28 is formed on the lower surface of the device main body 12. The second chamber 50 and the third chamber 51 are partitioned by a tank vertical wall 33 provided so as to rise from the bottom surface and having an upper end position formed higher than a pipe end position of the overflow prevention pipe 40. Further, the second chamber 50 and the third chamber 51 communicate with each other through a gap space above the tank vertical wall 33. Accordingly, the first chamber 49 and the second chamber 50 constitute an apparatus body outer portion 29 of the water storage tank 27.

  The third chamber 51 includes a cylindrical vent passage 47 that extends downward from the communication portion with the second chamber 50 and is refracted toward the rear second chamber 50 side. A cooling fan 46 is provided below the second chamber 50. That is, the air passage 47 is formed so as to be drawn below the water tank 27 from the position facing the water in the water tank 27, and the cooling fan 46 is a water tank below the water tank 27 in the air passage 47. 27 is provided at a position not facing water. Although the cleaning sterilization tank 11 has a high temperature atmosphere, the ventilation path 47 is thus extended from the upper side to the lower side and has a bent portion, and does not face the water in the water storage tank 27 in the ventilation path 47. Since the cooling fan 46 is provided, the high-temperature air from the cleaning sterilization tank 11 is sufficiently cooled by the air passage 47, and the cooling fan 46 can be prevented from being damaged by the influence of heat.

  In the water storage tank 27 of this modification, since water flows through the apparatus outer wall opening 31 and the dividing wall opening 35, the water level of the water storage tank 27 is constant in the apparatus main body inner part 28 and the apparatus main body outer part 29. However, when it reaches or exceeds the pipe end position of the overflow prevention pipe 40, excess water is drained from the opening of the pipe end to prevent the water in the water storage tank 27 from overflowing. Further, when the water level of the water storage tank 27 is below a certain level and the device outer wall opening 31 of the second chamber 50 is exposed above the water surface, the ventilation passage 47 between the cleaning sterilization tank 11 and the outside of the device is the device of the water storage tank 27. The outer wall opening 31, the second chamber 50, and the first chamber 49 communicate with each other, and the outside of the cleaning sterilization tank 11 is introduced into the cleaning sterilization tank 11 through rotation of the cooling fan 46 through the air passage 47. On the contrary, when the water level becomes higher than the certain water level and the device outer wall opening 31 is submerged below the water surface, a water shutter structure is formed in which the air passage 47 is blocked by water. ing.

<Operation of cleaning sterilizer>
Next, operation | movement of this washing | cleaning sterilization apparatus 10 is demonstrated.

  In this cleaning sterilization apparatus 10, it is possible to manually perform each of cleaning, sterilization, rinsing cleaning, and drying of the sterilized material to be cleaned, but the operation control unit executes an operation control program installed in advance. Therefore, it is possible to continuously control and control the cleaning water injection, the superheated steam generation supply for sterilization, the rinsing water injection and the superheated steam generation supply for drying. It is also possible to carry out as a series of processes. Hereinafter, the latter will be specifically described.

  First, the opening / closing door 13 is opened, the cleaning sterilization basket 15 is taken out from the cleaning sterilization tank 11, and a sterilized article to be cleaned such as a medical instrument is put in the cleaning sterilization tank 15, and then the cleaning sterilization basket 15 is again installed in the cleaning sterilization tank 11. The door 13 is accommodated and the door 13 is closed. When the operation switch of the operation panel 14 is turned on, the operation control unit starts executing the operation control program.

  If the operation control program is started and the water level sensor of the water storage tank 27 does not detect water, the electromagnetic water supply valve 41 is opened. Thereby, water is supplied to the water storage tank 27 via the water supply pipe 42. And if a water level sensor detects water, the electromagnetic water supply valve 41 will be closed. Thereby, the water supply to the water storage tank 27 is stopped. At this time, since the water storage tank 27 is filled with water, when the apparatus outer wall opening 31 is submerged below the water surface, the air passage 47 between the cleaning sterilization tank 11 and the outside of the apparatus is blocked by water. Note that this procedure is not executed when water is stored in the water storage tank 27 in advance so that the water level sensor detects water.

  At the same time, the upper and lower heaters 36 and 37 are also turned on, and then are turned on so that the water temperature in the water storage tank 27 is equal to or higher than a predetermined first set water temperature based on detection information of the water temperature sensor. Control off / on. Thereby, the water in the water storage tank 27 is heated and heated. The first set water temperature is, for example, 50 to 60 ° C.

  At the same time, the water supply pump 39 is also turned on. As a result, the water in the water storage tank 27 is supplied as cleaning water to the nozzle bodies 16a and 17a via the fixed portions 16b and 17b of the upper and lower rotary spray nozzles 16 and 17, respectively. The cleaning water is sprayed from the plurality of water injection holes 16a and 17a, and the cleaning water is sprayed into the cleaning sterilization tank 11 by the rotation of the nozzle bodies 16a and 17a. The water sprayed and sprayed into the cleaning sterilization tank 11 returns to the water storage tank 27 and circulates again. At this time, the sterilized material to be cleaned is preliminarily washed with water sprayed and sprayed into the cleaning sterilization tank 11.

  After the water level sensor detects water and the water temperature sensor detects the first set water temperature, this water circulation operation is continued for a certain time. As a result, hot water having a temperature equal to or higher than the first set water temperature is jetted and sprayed into the cleaning sterilization tank 11. At this time, the sterilized material to be cleaned is cleaned with warm water by the warm water sprayed and sprayed into the cleaning sterilization tank 11. The predetermined time is, for example, 10 to 20 minutes.

  Next, the upper and lower heaters 36 and 37 are always turned on. Moreover, the ON state of the water supply pump 39 is maintained. Thereby, the water in the water storage tank 27 is heated and heated while spraying and spraying the hot water into the cleaning sterilization tank 11, that is, warm water cleaning of the sterilized material to be cleaned.

  Next, when the water temperature sensor detects a predetermined second set water temperature, the lower heater 37 and the water supply pump 39 are turned off, and at the same time, the superheated steam generation heater 22 and the superheated steam supply fan 23 are turned on. Further, on / off control of the superheated steam generation heater 22 is performed based on the detection information of the tank temperature sensor so that the tank temperature of the cleaning sterilization tank 11 becomes equal to or higher than a predetermined first set tank temperature. As a result, the spraying and spraying of the hot water into the washing and sterilization tank 11 is stopped, while the water in the water storage tank 27 is continuously heated by the upper heater 36 to generate water vapor, which is mainly the upper opening. When the steam flows into the superheated steam generation chamber 19 from 20, the steam is further heated by the superheated steam generation heater 22 to generate superheated steam, and the superheated steam is washed and sterilized from the lower opening 21 by the steam supply fan 11. To be supplied. After the tank temperature sensor detects the first set tank temperature, the state is continued for a certain time. At this time, the sterilized product to be cleaned is sterilized by the superheated steam. The second set water temperature is, for example, 80 to 100 ° C. The first set tank temperature is, for example, 150 to 250 ° C. The predetermined time is, for example, 15 to 30 minutes. In the above control, the lower heater 37 is turned off and only the upper heater 36 is turned on, but both may be turned on without turning the lower heater 37 off. However, in order to generate water vapor from water, it is sufficient to heat only water near the surface of the water, and unnecessary energy consumption can be avoided by turning off the lower heater 37, thereby saving energy. it can.

  At this time, since the superheated steam guide 24 is provided at the corner of the superheated steam generation chamber 19 behind the steam supply fan, the superheated steam is provided at the corner of the superheated steam generation chamber 19 as shown in FIG. Superheated steam is efficiently supplied to the cleaning sterilization tank 11 without staying. Further, since the flange 25 is provided on the upper side of the lower opening 21, as shown in FIG. 4, the superheated steam is prevented from rising immediately after coming out of the lower opening 21, and the superheated steam is laterally displaced. It blows out in the direction and spreads throughout the cleaning sterilization tank 11. Further, excess superheated steam is discharged from a superheated steam exhaust passage 26 provided so as to extend from the superheated steam generation chamber 19 to the outside of the apparatus.

  In addition to these, in the cleaning sterilization tank 11 under the condition that the water temperature in the water storage tank 27 when starting the production of superheated steam is not less than a predetermined temperature (for example, a temperature in the range of 85 ° C. or more and less than 93 ° C.) When the superheated steam is supplied to the water, the water in the water storage tank 27 contacts the superheated steam in addition to the upper heater 36 and is heated to a temperature sufficient for sterilization of bacteria (for example, 93 to 100 ° C.). After washing with hot water, water containing bacteria in the water storage tank 27 is sterilized at high temperature. Therefore, it is not necessary to heat the water contaminated with bacteria in the water storage tank 27 only by the upper and / or lower heaters 36 and 37 separately, so that energy saving can be achieved. From this viewpoint, the second set water temperature is preferably 85 ° C. or higher, and more preferably 95 ° C. or higher.

  FIG. 8 shows the cleaning and sterilization apparatus 10 having the same configuration as that of the first embodiment. After the hot water cleaning, the upper heater 36 (maximum output 500 W) and the lower heater 37 (maximum output 750 W) until the water temperature sensor detects 90 ° C. ) Is turned on to heat the water in the water storage tank 27, and after the water temperature sensor detects 90 ° C., the lower heater 37 and the water supply pump 39 are turned off, and at the same time, the superheated steam generation heater 22 (maximum output 750 W) ) And the superheated steam supply fan 23 are turned on, and the superheated steam generation heater 22 is controlled to turn on / off so that the temperature in the cleaning sterilization tank 11 becomes 150 ° C. or higher based on the detection information of the temperature sensor in the tank. The time-dependent change of the water temperature of the water in the bottom part in the water storage tank 27 is shown. According to this, it takes about 15 minutes for the water temperature in the water storage tank 27 to reach 90 ° C. by both the upper and lower heaters 36, 37. Thereafter, the lower heater 37 is turned off. In spite of this, it can be seen that the temperature of the water in the water storage tank 27 has further increased, and has reached approximately 100 ° C. when about 20 minutes have passed.

  Next, the lower heater 37 is turned on while the upper heater 36 is turned on, that is, both the upper and lower heaters 36 and 37 are turned on, and then the inside of the water storage tank 27 based on the detection information of the water temperature sensor. These waters are turned on / off so that the water temperature becomes equal to or higher than a predetermined third set water temperature. Thereby, the water in the water storage tank 27 is heated and heated. At the same time, the water supply pump 39 is also turned on. As a result, the water in the water storage tank 27 is supplied as rinse water to the nozzle bodies 16a and 17a via the fixed portions 16b and 17b of the upper and lower rotary spray nozzles 16 and 17, respectively. The rinse water is sprayed from the plurality of water spray holes 16a and 17a, and the rinse water is sprayed into the cleaning sterilization tank 11 by the rotation of the nozzle bodies 16a and 17a. The water sprayed and sprayed into the cleaning sterilization tank 11 returns to the water storage tank 27 and circulates again. After the water temperature sensor detects the third set water temperature, the water circulation operation is continued for a predetermined time. At this time, the sterilized material to be cleaned is rinsed and cleaned with water sprayed and sprayed into the cleaning sterilization tank 11. The predetermined time is, for example, 1 to 5 minutes. At this time, both the upper and lower heaters 36 and 37 may be turned off, and the water whose water temperature in the water storage tank 27 is decreasing may be used as the rinse water.

  Then, the lower heater 37 and the water supply pump 39 are turned off again, the upper heater 36 is always turned on, and at the same time, the superheated steam generation heater 22 and the superheated steam supply fan 23 are turned on. Further, on / off control of the superheated steam generating heater 22 is performed based on the detection information of the tank temperature sensor so that the tank temperature of the cleaning sterilization tank 11 becomes equal to or higher than a predetermined second set tank temperature. As a result, the injection and spraying of the rinse water into the cleaning and sterilization tank 11 is stopped, while the water in the water storage tank 27 is continuously heated by the upper heater 36 to generate water vapor. When the steam flows into the superheated steam generation chamber 19 from the section 20, the steam is further heated by the superheated steam generation heater 22 to generate superheated steam, and the superheated steam is washed from the lower opening 21 by the superheated steam supply fan 23. It is supplied to the sterilization tank 11. After the tank temperature sensor detects the second set tank temperature, the state is continued for a certain time. At this time, the sterilized product to be cleaned is dried by the superheated steam. The temperature in the second setting tank is, for example, 110 to 150 ° C. The predetermined time is, for example, 15 to 30 minutes. At this time, the upper heater 36 is also turned off and water is not generated from the water in the water storage tank 27, and only the superheated steam generation heater 22 and the superheated steam supply fan 23 are turned on and the interior of the cleaning sterilization tank 11 is turned on. The temperature of the sterilized product to be cleaned may be dried by raising the temperature.

  Next, the upper heater 36 and the superheated steam generating heater 22 are turned off, and the drain pump 44 and the electromagnetic water supply valve 41 are turned on. Further, the on state of the superheated steam supply fan 23 is maintained. Thereby, the production | generation of water vapor | steam and the production | generation of superheated water vapor | steam stopped, the air in the washing | cleaning sterilization tank 11 was circulated and cooled by the fan 23 for superheated water vapor | steam supply, and the water in the water storage tank 27 was newly supplied. It is mixed with water, the water temperature is lowered, and the water is drained through the drain pipe 43 together. The amount of water supplied to the water storage tank 27 per unit time is made smaller than the amount of drainage per unit time. At this time, since the drainage pipe 43 is introduced into the opening at the end of the overflow prevention pipe 40, the drained water passes through a position higher than the water surface of the water in the water tank 27. The water in 27 is drained. When the water level is below a certain level and the device outer wall opening 31 is exposed above the water surface, the ventilation passage 47 between the cleaning sterilization tank 11 and the outside of the device passes through the device outer wall opening 31 of the water storage tank 27 and the filter 45. Communicate.

  After a sufficient predetermined time required for the completion of drainage, the drainage pump 44 is turned off, and at the same time, the cooling fan 46 is turned on, and the state is continued for a certain time. Further, the on state of the superheated steam supply fan 23 is maintained. As a result, the outside air flows into the cleaning sterilization tank 11 communicated with the outside of the apparatus via the air passage 47 by the cooling fan 46, and the air in the cleaning sterilization tank 11 is circulated by the superheated steam supply fan 23 to be cleaned and sterilized. The entire tank 11 is cooled. At this time, the sterilized material to be cleaned housed in the cleaning sterilization tank 11 is also cooled. The predetermined time is, for example, 5 to 10 minutes.

  After the predetermined time has elapsed, the cooling fan 46 and the superheated steam supply fan 23 are turned off. Thereby, the cleaning and sterilization of the sterilized material to be cleaned are completed, and thereafter, the door 13 is opened to take out the bag 15 and the sterilized material to be cleaned from the cleaning sterilization tank 11.

  It is also possible to omit the rinsing and drying or drying, and drain the water in the water storage tank 27 after sterilization or rinsing of the sterilized material to be cleaned. In the rinse cleaning, the water used for the hot water cleaning in the water storage tank 27 may be once drained and rinsed with newly supplied water.

(Embodiment 2)
<Configuration of cleaning sterilizer>
FIG. 9 shows a cleaning sterilization apparatus 10 according to the second embodiment. The external configuration is the same as that shown in FIGS. 1 and 2 of the first embodiment, and parts having the same names as those of the first embodiment are denoted by the same reference numerals.

  This cleaning sterilization apparatus 10 is also heated in the cleaning sterilization tank 11 in addition to performing cleaning by spraying cleaning water onto a sterilized object to be cleaned such as a medical instrument in a single cleaning sterilization tank 11. By generating and supplying water vapor, the sterilized product to be cleaned can be sterilized. Further, the rinse water is sprayed by rinsing water, and superheated steam is generated and supplied again into the cleaning sterilization tank 11. Accordingly, the sterilized product to be cleaned can be dried, and therefore, the sterilized product to be cleaned can be cleaned, sterilized, rinsed and dried in a compact space.

  In this cleaning sterilization apparatus 10, the apparatus main body inner portion 28 of the water storage tank 27 has a reduced diameter communication portion 52 that is reduced in a neck shape extending in the vertical direction so as to communicate with the cleaning sterilization tank 11. The water surface that appears in the reduced diameter communicating portion 52 is exposed in the cleaning sterilization tank 11. An upper heater 36 is provided in the reduced diameter communication portion 52.

  According to such a configuration, water that appears in the limited diameter communication portion 52 is heated by the upper heater 36 to generate water vapor, so that water vapor can be generated with high thermal efficiency.

  Other configurations, operations, and effects are the same as those of the first embodiment.

(Embodiment 3)
<Configuration of cleaning sterilizer>
FIG. 10 shows a cleaning sterilization apparatus 10 according to the third embodiment. The external configuration is the same as that shown in FIGS. 1 and 2 of the first embodiment, and parts having the same names as those of the first embodiment are denoted by the same reference numerals.

  This cleaning sterilization apparatus 10 is also heated in the cleaning sterilization tank 11 in addition to performing cleaning by spraying cleaning water onto a sterilized object to be cleaned such as a medical instrument in a single cleaning sterilization tank 11. By generating and supplying water vapor, the sterilized product to be cleaned can be sterilized. Further, the rinse water is sprayed by rinsing water, and superheated steam is generated and supplied again into the cleaning sterilization tank 11. Accordingly, the sterilized product to be cleaned can be dried, and therefore, the sterilized product to be cleaned can be cleaned, sterilized, rinsed and dried in a compact space.

  In this cleaning sterilization apparatus 10, a water storage tank 27 that communicates with the cleaning sterilization tank 11 through a communication path 53 is provided on the side of the apparatus main body 12.

  The water storage tank 27 is divided into a water heating chamber 54 and a water supply / discharge chamber 55 by a dividing wall 32 provided to hang from the upper surface portion, and a dividing wall opening 35 which is a gap below the dividing wall 32. They communicate with each other.

  In the water heating chamber 54, upper and lower heaters 36 and 37 are arranged vertically. A water supply pipe 38 extends from the water heating chamber 54 and is branched to be connected to the fixing portions 16b and 17b of the upper and lower rotary spray nozzles 16 and 17, respectively.

  The water supply / discharge chamber 55 is provided with an overflow prevention pipe 40 that extends through the bottom and extends upward and has a pipe end that opens upward. Further, a drain pipe 43 extends from the water supply / discharge chamber 55, and the drain pipe 43 is introduced into the opening at the end of the overflow prevention pipe 40.

  The water storage tank 27 is not configured to expose the water surface in the water storage tank 27 in the cleaning sterilization tank 11 as in the first and second embodiments, and also has a water shutter structure. Not.

<Operation of cleaning sterilizer>
Next, operation | movement of this washing | cleaning sterilization apparatus 10 is demonstrated. The operation of the cleaning sterilization apparatus 10 is the same as that of the first embodiment up to the point where the sterilized material to be cleaned is dried. However, in the third embodiment, since the water level in the water storage tank 27 is not exposed in the cleaning sterilization tank 11, the water in the water storage tank 27 is not sterilized when the sterilized material to be cleaned is sterilized.

  After drying the sterilized material to be cleaned, the superheated steam generating heater 22 is turned off, the lower heater 37 is turned on while the upper heater 36 is kept on, that is, both the upper and lower heaters 36 and 37 are turned on. Then, after the water temperature sensor detects a predetermined temperature (for example, 93 to 100 ° C.), the state is continued for a certain time. Further, the on state of the superheated steam supply fan 23 is maintained. Thereby, the production of superheated steam is stopped, the air in the cleaning sterilization tank 11 is circulated and cooled by the superheated steam supply fan 23, and the water containing bacteria in the water storage tank 27 is sterilized at high temperature. The predetermined time is, for example, 5 to 10 minutes.

  Next, the upper and lower heaters 36 and 37 are turned off, and the drainage pump 44 and the electromagnetic water supply valve 41 are turned on. Further, the on state of the superheated steam supply fan 23 is maintained. Thereby, the heating of the water in the water storage tank 27 is stopped, the air in the cleaning sterilization tank 11 is continuously circulated and cooled by the superheated steam supply fan 23, and the water in the water storage tank 27 is newly supplied. It is mixed with water and the water temperature is lowered and drained through the drain pipe 43 together. The amount of water supplied to the water storage tank 27 per unit time is made smaller than the amount of drainage per unit time.

  After the predetermined time has elapsed, the superheated steam supply fan 23 is turned off. Thus, the cleaning and sterilization of the sterilized object to be cleaned is completed, and thereafter, the opening / closing door 13 is opened, and the cleaning sterilization basket 15 and the sterilized object to be cleaned are taken out from the cleaning sterilization tank 11.

  It is also possible to omit the rinsing and drying or drying, and drain the water in the water storage tank 27 after sterilization or rinsing of the sterilized material to be cleaned. Further, the water in the water tank 27 may be sterilized before rinsing, and the water used for the hot water cleaning in the water tank 27 is sterilized and drained once, and then rinsed with newly supplied water. You may do it.

  INDUSTRIAL APPLICATION This invention is useful about the washing | cleaning sterilization apparatus used when wash | cleaning and sterilizing to-be-cleaned materials, such as a medical instrument.

1 is a perspective view of a cleaning and sterilization apparatus according to Embodiment 1. FIG. It is a perspective view which shows the state which opened the opening / closing door of the washing | cleaning sterilization apparatus which concerns on Embodiment 1. FIG. It is explanatory drawing which shows the internal structure of the washing | cleaning sterilization apparatus which concerns on Embodiment 1. FIG. It is a side view which shows the lower structure of the superheated steam generation chamber of Embodiment 1. It is a perspective view which shows the structure of the water storage tank of the modification of Embodiment 1. FIG. It is sectional drawing which shows the internal structure of the washing | cleaning sterilization apparatus of the modification of Embodiment 1. It is sectional drawing which shows the external box internal structure of the water storage tank of the modification of Embodiment 1. FIG. It is a graph which shows the time-dependent change of the water temperature of the water of a water tank. It is explanatory drawing which shows the internal structure of the washing | cleaning sterilization apparatus which concerns on Embodiment 2. FIG. It is explanatory drawing which shows the internal structure of the washing | cleaning sterilization apparatus which concerns on Embodiment 3. FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Cleaning sterilizer 11 Cleaning sterilization tank 16 Upper side rotation injection nozzle 17 Lower side rotation injection nozzle 18 Internal partition wall 19 Superheated steam generation chamber 20 Upper opening part 21 Lower opening part 22 Superheated steam generation heater 23 Superheated steam supply fan 26 Overheating Steam exhaust path 27 Water storage tank 36 Upper heater 37 Lower heater 40 Overflow prevention pipe 43 Drain pipe 46 Cooling fan 47 Ventilation path 52 Reduced diameter communication portion

Claims (23)

A cleaning and sterilization tank for storing sterilized materials to be cleaned;
Washing water jetting means for jetting washing water to the sterilized material to be cleaned housed in the cleaning sterilization tank,
Superheated steam generation and supply means for supplying and supplying superheated steam into the cleaning sterilization tank;
Equipped with a,
The superheated steam generation and supply means includes a heater for generating superheated steam by heating the steam to generate superheated steam . In the cleaning and sterilization apparatus according to claim 1,
After washing water is sprayed on the sterilized material to be cleaned in the cleaning sterilization tank by the cleaning water spraying means and cleaned, superheated steam is generated and supplied into the cleaning sterilization tank by the superheated steam generation and supply means. A cleaning and sterilizing apparatus, further comprising an operation control unit that controls the operation so as to sterilize a sterilized product. In the cleaning and sterilization apparatus according to claim 2,
The operation control unit is configured to inject rinsing water onto the sterilized material to be cleaned in the cleaning sterilization tank by the cleaning water jetting means after sterilizing the sterilized material to be cleaned and rinse and wash the sterilized material. Cleaning and sterilization device characterized by In the cleaning and sterilization apparatus according to claim 3,
The operation control unit is configured to rinse and wash the sterilized material to be cleaned, and then generate and supply superheated steam into the cleaning sterilization tank by the superheated steam generation and supply means to dry the sterilized material to be cleaned. Cleaning and sterilization device characterized by The cleaning and sterilization apparatus according to any one of claims 1 to 4,
A cleaning and sterilizing apparatus, further comprising a water storage tank for storing both the water for cleaning water supplied to the cleaning water jetting means and the water for superheated steam supplied to the superheated steam generation and supply means. In the cleaning and sterilization apparatus according to claim 5,
The water storage tank is provided with an overflow prevention pipe for draining excess water from the opening of the pipe end when the pipe end opens upward and the water level becomes equal to or higher than the pipe end position. Sterilizer. In the cleaning and sterilization apparatus according to claim 6,
A cleaning and sterilizing apparatus, wherein a drain pipe extending from the water storage tank is introduced into an opening at an end of the overflow prevention pipe. The cleaning and sterilizing apparatus according to any one of claims 5 to 7,
A cleaning and sterilizing apparatus, wherein the water tank is provided with upper and lower heaters for heating water in the water tank above and below the water tank. The cleaning and sterilization apparatus according to claim 8,
The cleaning and sterilizing apparatus, wherein the lower heater has a larger maximum output than the upper heater. The cleaning and sterilization apparatus according to claim 8 or 9,
The cleaning sterilization apparatus according to claim 1, wherein the water storage tank is provided below the cleaning sterilization tank so that a water surface of the water storage tank is exposed in the cleaning sterilization tank. In the cleaning and sterilization apparatus according to claim 10,
The superheated steam generation heater is provided in a superheated steam generation chamber formed adjacent to the cleaning sterilization tank through an internal partition wall having a communication structure with the cleaning sterilization tank, and flows into the cleaning sterilization tank. Is configured to heat and produce superheated steam,
The superheated steam generator feed means, the over-heat steam generator et provided indoors is a comprising a superheated steam supply fan for supplying superheated steam generated by the superheated steam generation heater to the cleaning sterilization tank Cleaning and sterilizing equipment. The cleaning and sterilization apparatus according to claim 11,
A cleaning and sterilization apparatus according to claim 1, wherein the superheated steam generation chamber is provided with a superheated steam exhaust passage communicating with the outside of the apparatus. The cleaning and sterilizing apparatus according to any one of claims 10 to 12,
The water storage tank has a water shutter structure that communicates the air passage between the cleaning and sterilization tank and the outside of the apparatus if the water level is below a certain level, and blocks the air passage if the water level is higher than the certain water level. Cleaning and sterilization device characterized by The cleaning and sterilization apparatus according to claim 13,
The cleaning and sterilizing apparatus according to claim 1, wherein the air passage is provided with a cooling fan for introducing outside air into the cleaning and sterilization tank. The cleaning and sterilization apparatus according to claim 14,
The cleaning sterilization apparatus, wherein the cooling fan is provided in a position not facing water in the water storage tank in the air passage. The cleaning and sterilizing apparatus according to any one of claims 13 to 15,
A cleaning and sterilizing apparatus, wherein the air passage is provided with a filter. The cleaning and sterilization apparatus according to any one of claims 10 to 16,
3. The cleaning and sterilizing apparatus according to claim 1, wherein the water storage tank has a reduced diameter communicating portion that extends in a vertical direction so as to communicate with the cleaning and sterilizing tank and is reduced in a neck shape provided with an upper heater. The cleaning and sterilizing apparatus according to any one of claims 1 to 17,
The washing water jetting means is provided above and below the washing sterilization tank, each formed in a hollow rod shape having a plurality of water jet holes perforated at intervals in the length direction, and supplied with the washing water supplied A cleaning sterilization apparatus comprising upper and lower rotating spray nozzles that rotate so as to spray cleaning water from the plurality of water injection holes by water pressure and to spray the cleaning water into the cleaning sterilization tank . The cleaning and sterilization apparatus according to claim 18,
The cleaning and sterilizing apparatus, wherein the upper and lower rotary spray nozzles are configured to rotate at mutually different speeds and / or in opposite directions. A cleaning and sterilization tank for storing sterilized materials to be cleaned;
Washing water jetting means for jetting washing water to the sterilized material to be cleaned housed in the cleaning sterilization tank,
Superheated steam generation and supply means for supplying and supplying superheated steam into the cleaning sterilization tank;
A water storage tank for storing both the water for washing water supplied to the washing water injection means and the water for superheated steam supplied to the superheated steam generation and supply means;
After the cleaning water jetting means sprays the water in the water storage tank as cleaning water on the sterilized material to be cleaned in the cleaning sterilization tank, the water is stored in the cleaning sterilization tank by the superheated steam generation and supply means. An operation control unit that performs operation control so as to sterilize the sterilized material to be cleaned by generating and supplying superheated steam from the water in the tank,
With
The superheated steam generation and supply means includes a heater for generating superheated steam that heats steam and generates superheated steam,
The operation control unit sterilizes the sterilized material to be cleaned, and then rinses and cleans the sterilized material to be cleaned in the cleaning sterilization tank by rinsing the sterilized material in the cleaning sterilization tank with rinsing water. 1. A cleaning and sterilizing apparatus characterized by comprising: The cleaning and sterilization apparatus according to claim 20,
The operation control unit rinses and cleans the sterilized material to be cleaned, and then generates and supplies superheated steam from the water in the water storage tank into the cleaning sterilization tank by the superheated steam generation and supply means to dry the sterilized material to be cleaned. 1. A cleaning and sterilizing apparatus characterized by comprising: The cleaning and sterilization apparatus according to any one of claims 1 to 21,
A cleaning and sterilizing apparatus, wherein the sterilized material to be cleaned is a medical instrument.   A cleaning and sterilization method comprising cleaning and sterilizing a medical instrument using the cleaning and sterilizing apparatus according to any one of claims 1 to 21.

Images