JP2006326455A - Nozzle for sterilization and washing of vessel, sterilization method of vessel, washing method of vessel, and sterilization and washing device of vessel - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To reduce the consumption of a disinfectant and prevent a nozzle pipe line from being clogged, in a nozzle for sterilization and washing used in a germ-free room, a sterilization method of a vessel with bubbles of an aqueous disinfectant solution produced by using the nozzle, and a washing method and apparatus with bubbles of washing water. <P>SOLUTION: The nozzle for sterilization and washing of the vessel comprises a nozzle body provided with a liquid passage communicated with a charging line of the aqueous disinfectant solution or the washing water, and opening with a distal passage squeezed, a narrowed area (orifice) provided on the liquid passage of the nozzle body, an air passage opening at the downstream of the narrowed area and communicating to the outside of the nozzle body, and an air flow control means controlling the air flow of the air passage. The nozzle for sterilization and washing sucks in the air around the nozzle by negative pressure due to flow velocity in the flow at the narrowed area in the liquid passage of the nozzle body, controls a suction amount of the air by the air flow control means, and blows out the liquid in a bubble state wherein the aqueous disinfectant solution or washing water and air are mixed, to an inverted vessel to sterilize and wash. The sterilization method of the vessel, the washing method of the vessel, and the sterilization and washing device of the vessel are provided. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  TECHNICAL FIELD The present invention relates to a sterilizing aqueous solution used when disinfecting and cleaning containers such as beverages, a nozzle for ejecting cleaning water, and a sterilizing cleaning method and apparatus using the nozzle, and in particular, a sterilizing cleaning nozzle used in an aseptic room, and these. The present invention relates to a method for sterilizing a container with bubbles of an aqueous sterilizing agent solution generated using a nozzle, and a method and apparatus for cleaning with bubbles of cleaning water.

  In beverage filling equipment, the inside and outside of beverage containers are sterilized, and the washing process has been conventionally performed in a normal living atmosphere without using a clean room. The cleaning process also took a long time, and was trying to reduce the chance of contamination after sterilization and cleaning. In such an environment, a sterilization apparatus and a sterilization method as shown in Patent Document 1 have been proposed. Below, the main point is demonstrated about this sterilizer and the sterilization method.

  This is a sterilization and cleaning method that uses hydrogen peroxide water (or peracetic acid aqueous solution) in the sterilization process, and ozone water for pre-cleaning and post-sterilization after-cleaning. It uses the change to water. The spray nozzle used in this apparatus sprays the germicide aqueous solution directly into and out of the container, and drains it. However, since such a direct spraying method of a bactericidal solution requires a large amount of a bactericidal solution and washing water, as a means to solve this problem, the amount of the bactericidal solution and washing water is reduced, and the equipment is downsized. In order to achieve this, a method using a two-fluid mist spray nozzle using a commercially available bactericidal solution and high-pressure air has also been proposed.

  The conventional spray nozzle proposed in Patent Document 2 is used for spraying the herbicide chemical solution, and forms a bubble in which the chemical solution is mixed with air so that the chemical solution does not adhere to plants other than the object to be sprayed. It is heavier than spraying chemicals, lighter than direct liquids, and is intended to softly spray chemicals on objects. Bubbles are formed by inhaling air by the negative flow pressure of the chemical solution, mixing uniformly in the nozzle and ejecting it from the nozzle tip, and in order to assist bubble formation, an appropriate foaming aid is added to the chemical solution. It is also mentioned that it mixes.

Japanese Patent No. 2695694 (FIG. 1) Japanese Utility Model Publication No. 62-9958 (FIG. 1)

  In the sterilization process of the container, the conventional sterilization method of Patent Document 1 is a sterilization nozzle that directly injects only the sterilant aqueous solution, and the flow rate of the sterilizer aqueous solution is large. is there. In addition, the conventional mist type sterilization nozzle has a small flow rate of the sterilizing agent aqueous solution, but since the spraying speed is slow, there is a concern that uneven spraying in the container is likely to occur, and since a very small orifice is used to form a spray, Impurities in the disinfectant aqueous solution are likely to be clogged. Moreover, the conventional nozzle for disinfectants of Patent Document 2 is used for spraying herbicide chemicals, and has problems such as a low flow rate and a slow injection speed, and is unusable for container disinfection. The present invention is proposed to solve the above-described problems.

With respect to the above problems, the present invention aims to solve the problems by the following means.
(1) The sterilizing and washing nozzle of the container of the first means includes a nozzle main body provided with a liquid passage that communicates with a supply pipe of the sterilizing agent aqueous solution or the cleaning water and is opened by narrowing a passage at a tip. A constricted portion (orifice) provided in the liquid passage, an air passage that opens downstream of the constricted portion and communicates with the outside of the nozzle body, and an air flow rate adjusting means that adjusts the air flow rate of the air passage, Bubble shape in which the air around the nozzle is sucked by the negative flow velocity when flowing through the narrow part of the liquid passage of the nozzle body, and the amount of sucked air is adjusted by the air flow rate adjusting means to mix the sterilizing agent aqueous solution or cleaning water and air. The liquid is jetted into an inverted container to be sterilized or washed.

  (2) The container sterilization washing nozzle of the second means is configured such that the air flow rate adjusting means of the container sterilization washing nozzle of the above (1) has a predetermined angle in the ring-shaped cross section at the position where the air passage of the nozzle body is provided. An air passage having a plurality of through-holes opened at equal angles within the range, a through-hole of the nozzle body, and rotatably fitted on the outer periphery of the nozzle body, and a ring groove air chamber and the air on the inner peripheral side And a ring valve having an air passage through the chamber and the outside, and the number of air passages in the air chamber and the nozzle body is selected and communicated by rotating the ring valve.

(3) The sterilization washing nozzle of the container of the third means is a ring provided concentrically with the liquid passage of the nozzle body through which the air passage communicates with the air flow rate adjustment means of the sterilization washing nozzle of the container of (1) And a throttle adjusting valve installed in an air suction passage that leads from the ring space to the outside.
(4) The container sterilization method of the fourth means is a method for sterilizing an inverted container carried into a clean room filled with sterilized clean air, wherein the container of any one of (1) to (3) above is used. Using a sterilizing and cleaning nozzle, the air flow rate adjusting means sucks clean air around the nozzle by adjusting the mixing ratio of the bactericidal aqueous solution and air with the flow rate negative pressure of the sterilizing aqueous solution flowing in the nozzle body, A bubble-like liquid mixed with air is sprayed into a container to sterilize.

(5) The container sterilization method of the fifth means is the same as the container sterilization method of (4) above, in which an appropriate amount of foaming auxiliary agent that does not affect sterilization is added to the sterilizer aqueous solution, and the sterilizer aqueous solution and air are mixed. It fills the inside of the container as a bubble-like disinfectant, wraps the outside of the container and holds it for a certain time to sterilize.
(6) The container cleaning method of the sixth means is the cleaning method for an inverted container carried in a clean room filled with sterilized clean air, wherein any of the above (1) to (3) is sterilized and cleaned A bubble-like liquid or cleaning water in which cleaning water and air are mixed by adjusting or shutting off the suction amount of clean air around the nozzle using the nozzle and adjusting the flow rate of clean air around the nozzle by the negative flow velocity of the cleaning water flowing in the nozzle body It is characterized in that only the container is sprayed and washed.

  (7) A container sterilizing and cleaning apparatus according to a seventh means is installed in a clean room filled with sterilized clean air, and holds a inverted container at a constant interval and continuously rotates, Any one of a plurality of (1) to (3) above, wherein the bactericidal agent aqueous solution is ejected to the container within a required angle range while being rotated at the same interval pitch according to the container center line of the rotary container transport mechanism. A rotary sterilization apparatus comprising a nozzle rotation mechanism having a sterilization washing nozzle for containers, a rotary container conveyance mechanism that is installed in the same clean room as described above, and that rotates continuously while holding inverted containers at regular intervals. The killing of the plurality of containers (1) to (3) above, which is installed at the same interval pitch according to the container center line of the transport mechanism and jets washing water into and out of the container while rotating in synchronization. It comprises a rotary cleaning device comprising a nozzle rotation mechanism equipped with a cleaning nozzle, and is sterilized and cleaned by the container sterilization method (4) or (5) or the container cleaning method (6). It is characterized by that.

  (8) The sterilization method of the container of the eighth means uses the sterilization washing nozzle of any one of the above (1) to (3), and the container sterilization method according to the above (4) or (5) When sterilizing, a peracetic acid aqueous solution having a temperature of 50 ° C. or higher and a concentration of 500 ppm or more is sent to the nozzle, and clean air in a clean room is sucked into the nozzle to form a peracetic acid aqueous solution bubble, which is then ejected into the container and constant. It is characterized in that the peracetic acid aqueous solution is kept in contact for a time.

The invention according to claims 1 to 3 is a sterilization washing nozzle for the container of the first to third means, and the invention according to claim 4 is a sterilization washing nozzle for the container of any one of the first to third means. In the container sterilization method of the fourth means used, when the same container is processed in the container sterilization treatment step, the sterilizer is compared with the conventional sterilization nozzle and sterilization method which directly injects only the sterilizer aqueous solution. The flow rate of the aqueous solution can be reduced to half or less, and the consumption of the disinfectant can be reduced to 1/3 to 1/2. Since the amount of drain is small, the equipment for collecting and reusing the bactericidal solution is small and the cost is low.
Further, the conventional mist type sterilization nozzle has a small flow rate and consumption of the sterilizing agent aqueous solution, but since the spraying speed is slow, there is a concern that uneven spraying in the container tends to occur. In addition, since the mist type requires high-pressure air, a high-pressure air source and high-pressure air piping are required, and since a tiny orifice is used to form a spray, it is clogged due to impurities and coagulated substances in the sterilizer aqueous solution. Although it is easy, the bubble forming nozzle of the present invention does not require a special air pipe, and there is no possibility of clogging the pipe line because the means for forming the bubble does not have an extremely small pipe passage part. In addition, since the bactericidal solution bubble is heavier than the mist and much lighter than the direct flow of the bactericidal solution, the bactericidal solution can be sufficiently distributed to every corner even in a large-sized container.

The invention according to claim 5 is a method of assorted bacteria of the container of the fifth means. In the method of sterilizing the container of the fourth means, an appropriate amount of foaming aid is added to the sterilizing agent aqueous solution, Foaming is promoted, and there is an effect that the disinfectant is securely adhered and held inside and outside the container for a certain time.
The invention according to claim 6 is the container cleaning method of the sixth means, and in the cleaning of the inside and outside of the inverted container, the sterilization cleaning nozzle of the container of any one of the first to third means is used to wash the cleaning water. The suction of the clean air around the nozzle or the air is shut off by the negative flow velocity of the nozzle, and only the bubble-like liquid of washing water or the washing water is sprayed into and out of the container and washed. There is an effect that can use things.

The invention according to claim 7 is a rotary sterilization apparatus using the sterilization washing nozzle of the container of any one of the first to third means, and the sterilization method of the container of the fourth or fifth means, or Since the container is sterilized and cleaned by the container cleaning method of the sixth means, it has the same effects as those described in the first to sixth means.
The invention according to claim 8 specifies more specific sterilization conditions during the sterilization method of the container of the fourth or fifth means, and a more satisfactory sterilization effect can be obtained.

This embodiment is a sterilization cleaning by a bactericidal solution aqueous solution nozzle for disinfecting and cleaning a plastic container such as a beverage in a clean room such as a clean booth or a clean chamber, and a bactericide aqueous solution bubble generated by using this nozzle. The present invention relates to a method, a configuration and an action of a nozzle provided with means for adjusting the amount of air sucked into a nozzle in order to generate bubbles of an aqueous sterilizing agent, and a sterilizing device, a cleaning device, and a filling device provided with the nozzle The outline of the layout of the clean room in which the above is installed will be described with reference to the drawings.
(First embodiment)

  FIG. 1 is a side sectional view of the sterilizing nozzle according to the first embodiment, and FIG. 2 is a sectional view taken along line AA in FIG. In the figure, a sterilization nozzle 20 is attached to a lower part 21 of a nozzle communicating with a supply pipe for an aqueous sterilant solution with a packing 29 sandwiched between a liquid passage cylinder 23 and a nozzle body 22 by a nut 24, and a constricted portion in the middle of the liquid passage. The liquid passage cylinder 23 in which the orifice 23 a is formed is fitted into the nozzle body 22. Reference numeral 26 denotes sealing. The nozzle body 22 is opened by narrowing the tip of the liquid passage to form an ejection port 22a. An air passage 23b opening in the liquid passage downstream of the orifice 23a is opened, and communicates with the air passage 22b on the nozzle body 22 side to a clean room outside the nozzle body 22. As shown in FIG. 2, a plurality of the air passages 23b and the air passages 22b are provided at an equal angle within a predetermined angular range in the ring-shaped cross section perpendicular to the liquid passage, in this embodiment, an angular range of 180 degrees. Yes.

  The ring valve 25 that is rotatably fitted to the outer periphery of the nozzle body 22 covers the air passage 22b of the nozzle body 22, and has a ring groove air chamber 25a of about 180 degrees on the inner periphery side, the air chamber 25a, and the outside. And an air passage 25c that passes therethrough. When the aqueous sterilizing agent solution flows through the sterilizing nozzle 20 at a high speed, a negative pressure is generated downstream of the orifice 23a, and air is sucked in from the air passage 23b and the air passage 22b. The air flow rate adjusting means for adjusting the flow rate of the air sucked into 22 is configured. 27 is a seal ring for air seal, and 28 is a snap ring for preventing the ring valve 25 from coming off.

When the clean air of the outside clean room is sucked in through the air passage 22b, the air passage 23b and the air passage 25c of the ring valve 25 due to the negative flow velocity of the bactericide aqueous solution, the ring valve 25 is moved using the handle 25b of the ring valve 25. By rotating and passing through any of the ring groove air chamber 25a and the plurality of air passages 22b of the nozzle body 22, the amount of air sucked in can be adjusted, and the mixing ratio of the sterilizing agent aqueous solution or cleaning water and air Can be adjusted. The sterilizing nozzle 20 sterilizes by blowing a bubble-like liquid in which the sterilizing agent aqueous solution and air are mixed into and out of the container. At this time, when a foaming aid and a surfactant are added to the aqueous bactericidal agent solution, the effect of promoting the generation of bubbles and promoting the bactericidal ability is obtained.
When the ring groove-like air chamber 25a and the plurality of air passages 22b of the nozzle body 22 are placed at positions where they do not communicate with each other, the air is shut off, and the bactericidal agent aqueous solution or washing water can be jetted without air mixing. .
(Second Embodiment)

3 is a side sectional view of the sterilizing nozzle according to the second embodiment, and FIG. 4 is a sectional view taken along line BB in FIG. The configuration of the sterilizing nozzle 30 is almost the same as the configuration of the sterilizing nozzle 20 of the first embodiment except for the air flow rate adjusting means. However, since the arrangement of the air passages is different, the nozzle main body 22 is connected to the nozzle main body 32. The passage cylinder 23 is different in part number from the liquid passage cylinder 33.
The air flow rate adjusting means of the sterilizing nozzle 30 is a ring-shaped space provided concentrically with the air passage 32b of the nozzle body 32 through which the air passage 33b opened downstream of the orifice 33a of the liquid passage of the liquid passage cylinder 33 communicates. An air passage ring 35 having 35a, a throttle female screw 35c installed in an air suction passage 35b communicating from the ring-shaped space 35a to the outside, and a throttle adjusting valve 36 are configured. An air passage 35 d is provided in the air passage ring 35. The nozzle body 32 is opened by narrowing the tip of the liquid passage to form an injection port 32a. Other configurations are all the same as those of the sterilization nozzle 20 of the first embodiment.

The amount of air sucked in the sterilization nozzle 30 is adjusted by turning the throttle adjustment valve 36 to adjust the gap between the air suction passage 35b and the throttle adjustment valve 36.
As in the first embodiment, the sterilization nozzle 30 is also sterilized by ejecting a bubble-like liquid obtained by mixing an aqueous sterilizer solution and air into and out of the container. At this time, if a foaming aid and a surfactant are added to the aqueous bactericidal agent solution, the generation of bubbles can be promoted and the bactericidal ability can be subsidized. If the throttle adjusting valve 36 is closed, the air is shut off, and the sterilizer aqueous solution or the washing water can be injected without air mixing.
(Example)

  FIG. 5 is a plan view showing the layout of the clean room, the sterilization device in the room, and the cleaning device. The rotary sterilization device 7, the sterilization nozzle 20 or the sterilization nozzle that includes the sterilization nozzle 20 or the sterilization nozzle 30 described above and rotates continuously horizontally. It is the figure which laid out in the clean room 1 the washing | cleaning wheel 8 which used 30 as a washing | cleaning nozzle, the rotary washing | cleaning apparatus 9, the rotary drink filling device 12, the capper 13, etc. which similarly used the sterilization nozzle 20 or the sterilization nozzle 30 as a washing nozzle. . Clean air is always sent into the clean room 1 from the air inlet 2a, and the room is kept at a slight positive pressure to prevent normal air from entering from the outside and keep the room clean. The clean room 1 is divided into a sterilization treatment chamber 2, a washing treatment chamber 3, and a beverage filling chamber 4 by partition walls 3a, 4b, and 4c, and the sterilization treatment is performed so that the treated water in each treatment chamber does not scatter to other devices. The room 2 and the cleaning treatment room 3 are adjusted to room temperature to a temperature of 50 ° C. or more, and the beverage filling room 4 is adjusted to room temperature at a low temperature depending on the type of filled beverage. The entrance 2b of the container conveyor 5 to the clean room 1 and the exit 4a of the filled container conveyor 14 are provided with double partitions, and clean air is sent to the space between the partitions so that when the containers 15 such as PET bottles enter and exit, Prevents normal air from being brought in.

When sterilizing, the clean air in the clean room 1 is heated to a temperature of 50-60 ° C.
Empty containers 15 placed in a row on the container conveyor 5 enter the sterilization chamber 2 of the clean room 1 through the inlet 2b, and the distance between the containers 15 is changed to the star wheel 6 by the action of the container indexing screw 16. Expand the container pocket pitch to match the delivery timing. The container 15 transferred to the star wheel 6 is rotated 180 degrees to be inverted and transferred to the next rotary sterilizer 7 while being inverted. Here, the bactericidal aqueous solution in a bubble form is transferred from the sterilization nozzle 20 or 30 to the container. 15 is injected into the outside. FIG. 6 is a view showing a state where a bubble-like disinfectant aqueous solution is injected into the container 15.

  Since the bactericidal solution bubble is heavier than the mist and much lighter than the direct flow of the bactericidal solution, the bactericidal solution can be sufficiently distributed to every corner even in a large-sized container. However, the bubble-like disinfectant aqueous solution slowly flows down the outside of the container 15 on the outside of the container 15 at a relatively slow speed. Since the bubble-like disinfectant aqueous solution slowly flows down, the contact time of the disinfectant with the container is long, and even if the disinfectant solution containing less air (less than about half amount) is directly sprayed, the container 15 Can keep in touch.

  In the rotary sterilizer 7 shown in FIG. 5, the angle m indicates the jetting time of the bubble sterilizing liquid, and the angle n indicates the time during which the bubble sterilizing liquid is held inside and outside the container 15. According to the sterilization test, if a peracetic acid aqueous solution having a temperature of 50 ° C. or more, preferably 60 to 65 ° C. and having a concentration of 500 ppm or more, preferably 1800 ppm or more is in contact with the container 15 for a certain time, for example, T = 15 seconds or more. The result that it can fully sterilize is obtained. If the rotary sterilizer 7 is rotated so that the angle of the container 15 that combines the angles m and n takes time T (15 seconds) or longer under the above environmental conditions, the sterilization condition can be satisfied.

  The container 15 that has been sterilized is handed over from the rotary sterilizer 7 to the washing wheel 8 while being inverted. Here, the bubbles of the sterilizing agent aqueous solution are washed away with clean water, and then completely washed in the next washing device 9. Drain the water with clean air. Since bubbles need not be generated during cleaning, when the sterilizing nozzle 20 is used, the ring valve 25 is turned to close the ring groove air chamber 25a and the plurality of air passages 22b of the nozzle body 22, and the sterilizing nozzle. When 30 is used, the throttle adjustment valve 36 is closed and the air passage 32b is shut off. FIG. 7 is a view showing a state in which cleaning water in which air is not mixed is injected into the container 15. The container 15 is rotated 180 degrees upright by the next star wheel 11, filled with a beverage by a rotary filling device 12, covered with a cap 13 and sealed, and sent out of the clean room 1 by a filled container conveyor 14. .

  FIG. 8 shows the steps of sterilization and cleaning. The (bubble-like) sterilizing agent aqueous solution spraying and holding time in the rotary sterilizer 7 is 15 seconds, and this process and the drain of cleaning 1 (cleaning process of the cleaning wheel 8) are collected in the same drain tank and passed through the vacuum tank. After removing bubbles in the aqueous solution and adjusting the concentration of peracetic acid and foaming aid in the sterilizing agent aqueous solution, it is stored in the sterilizing agent aqueous solution tank and used again for bubble sterilization by the sterilizing nozzle 20 or 30. The drain of the washing 2 used in the rotary washing device 9 is neutralized from the drain tank, filtered by a filter, stored in a washing water tank, sent to the rotary washing device 9 and used for washing by the sterilization nozzle 20 or 30. The In addition, when two rotary cleaning devices are used as the cleaning process, the first cleaning time is 1.5 seconds, the drain time is 1 second, the second cleaning time is 1.5 seconds, the drain time is 2 seconds, Furthermore, the cleaning effect can be enhanced.

The above-mentioned sterilization nozzle 20 (30) was used to conduct a sterilization test on beverage PET bottles.
Test environment conditions Test bottle: 2 liter PET bottle Bactericidal agent: 1800 ppm peracetic acid aqueous solution Bactericidal time: 15 sec
Temperature: 63 ° C
Disinfectant used: Bubble-form disinfectant aqueous solution in which air was mixed with the above-mentioned peracetic acid aqueous solution Flow rate: 4.11 L / min
In
Bactericidal performance: When the test bacterium Bacillus subtilis has an initial bacterial count I = 3.1 × 10 ⁶ ,
Sterilizing performance Sterilizing Power = log {I / (MV + 3Σ)} is 6.7 <
When the test bacterium Chaetomium globosum has an initial bacterial count I = 2.4 × 10 ⁶ ,
Bactericidal performance is log {I / (MV + 3Σ)} 6.4
The result was obtained.

The same flow rate as in the above sterilization test, 2 liter PET bottle, 1800 ppm peracetic acid aqueous solution, sterilization time 15 sec, temperature 63 ° C., and flow rate when using the above bactericidal nozzle 20 (30) bubble sterilizer aqueous solution. And, the conventional flow rate nozzle and the flow rate of use of the disinfectant aqueous solution, the drain properties were compared (refer to Table 1). Table 1 shows the average values measured five times for each type of nozzle.

It is side surface sectional drawing of the sterilization nozzle which concerns on the 1st Embodiment of this invention. It is AA sectional drawing of FIG. It is side surface sectional drawing of the sterilization nozzle which concerns on the 2nd Embodiment of this invention. It is BB sectional drawing of FIG. It is a top view which shows layouts, such as a clean room and the sterilizer and washing | cleaning apparatus in the room. It is a figure which shows the state which is spraying the bubble-shaped disinfectant aqueous solution in a container. It is a figure which shows the state which is spraying washing water in a container. It is a block diagram which shows the processing process and drain collection | recovery process of the rotary sterilization apparatus and rotary washing | cleaning apparatus in the clean room of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Clean room 2 Sterilization processing room 3 Cleaning processing room 4 Beverage filling room 6 Star wheel 7 Rotary sterilization apparatus 8 Washing wheel 9 Rotary washing apparatus 12 Rotary drink filling apparatus 15 Container 20, 30 Sterilization nozzle 21 Nozzle lower part 22, 32 Nozzle main body 22b, 23b Air passage 23, 33 Liquid passage cylinder 23a, 33a Orifice 25 Ring valve 25a Ring groove air chamber 35 Air passage ring 35a Ring space 35b Air intake passage 36 Throttle adjustment valve

Claims (8)

  A nozzle body provided with a liquid passage that is open to the passage of the sterilizing agent aqueous solution or the cleaning water, and a narrow passage (orifice) provided in the liquid passage of the nozzle body, and the narrowing An air passage that opens downstream from the nozzle portion and communicates with the outside of the nozzle body, and an air flow rate adjusting means that adjusts the air flow rate of the air passage, and the negative flow velocity when flowing through the narrow portion of the liquid passage of the nozzle body The air around the nozzle is sucked in, the amount of air sucked in is adjusted by the air flow rate adjusting means, and a bactericidal aqueous solution or a bubble-like liquid mixed with cleaning water and air is jetted into an inverted container to be sterilized or cleaned. Characteristic container sterilization washing nozzle.   The air flow rate adjusting means of the sterilization / cleaning nozzle of the container according to claim 1 is an air passage having a plurality of through holes opened within a predetermined angular range in a ring-shaped cross section at a position where the air passage of the nozzle body is provided. And a ring valve that covers the through hole of the nozzle body and is rotatably fitted on the outer periphery of the nozzle body and has a ring groove air chamber on the inner peripheral side and an air passage that passes through the air chamber and the outside. The container sterilization washing nozzle is characterized in that the number of air passages between the air chamber and the nozzle body is selected and communicated by rotating a ring valve.   The air flow rate adjusting means of the sterilizing and washing nozzle for a container according to claim 1 includes a ring-shaped space concentrically provided with a liquid passage of the nozzle body through which the air passage is communicated, and air suction from the ring-shaped space to the outside. A sterilizing and washing nozzle for a container, characterized by comprising a throttle adjusting valve installed in a passage.   In the sterilization method of the inverted container carried in the clean room filled with the sterilized clean air, the sterilizing agent which flows in the nozzle body using the sterilization cleaning nozzle of the container according to any one of claims 1 to 3 The clean air around the nozzle is sucked in by adjusting the mixing ratio of the bactericidal agent aqueous solution and the air with the air flow rate adjusting means due to the negative pressure of the aqueous solution flow velocity, and the bubble liquid mixed with the bactericidal aqueous solution and air is injected into the container to sterilize A container sterilization method comprising:   The container sterilization method according to claim 4, wherein an appropriate amount of a foaming auxiliary agent that does not affect sterilization is added to the sterilizer aqueous solution, and the sterilizer aqueous solution and air are mixed to fill the inside of the container as a bubble sterilizer. A method for sterilizing a container, characterized by wrapping and holding and sterilizing for a predetermined time.   In the washing | cleaning method of the inverted container carried in the clean room filled with the clean air which sterilized, the washing water which flows through the inside of a nozzle body using the sterilization washing nozzle of the container in any one of Claim 1 thru | or 3 The amount of clean air sucked in around the nozzle is adjusted by the air flow rate adjusting means by the negative pressure of the flow rate, or shut off, and only the bubble liquid or the cleaning water mixed with the cleaning water and air is jetted into the container for cleaning. A method for cleaning containers.   Installed in a clean room filled with sterilized clean air, hold the inverted container at a constant interval and rotate continuously, and the same interval pitch according to the container center line of the rotary container transfer mechanism A plurality of nozzle rotation mechanisms equipped with a sterilization washing nozzle for a container according to any one of claims 1 to 3, wherein the sterilization aqueous solution is jetted into the container within a required angle range while being rotated in synchronization with each other. The rotary sterilizer is installed in the same clean room as above, and is installed at the same interval pitch according to the center line of the rotary container transport mechanism and the rotary container transport mechanism that keeps the inverted container at a constant interval and rotates continuously A plurality of nozzles provided with the sterilization washing nozzle according to any one of claims 1 to 3, wherein the washing water is jetted into and out of the container while rotating in synchronization. And a rotary cleaning device comprising a rotary mechanism for sterilization and cleaning by the container sterilization method according to claim 4 or claim 5 or the container cleaning method according to claim 6. The container sterilization cleaning device.   When the container sterilization washing nozzle according to any one of claims 1 to 3 is used and the container is sterilized by the container sterilization method according to claim 4 or 5, the concentration in the nozzle is set at a temperature of 50 ° C or higher. A peracetic acid aqueous solution of 500 ppm or more is sent, and clean air in a clean room is sucked into the nozzle to form a peracetic acid aqueous solution bubble, which is then ejected into the container, and the peracetic acid aqueous solution is kept in contact with the container for a certain period of time. Container sterilization method.

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