JPH0426324Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a sterilizing agent spray nozzle in an apparatus for sterilizing an inner wall of a container by spraying a sterilizing agent such as hydrogen peroxide.

BACKGROUND TECHNIQUES Aseptic packaging systems are aseptic packaging systems that preserve the freshness of contents for long periods of time by aseptically filling and sealing contents that have been sterilized for a short period of time at high temperatures. In the aseptic packaging system 1, after the container 3 molded in the box making part 2 is inspected by the molding defect detection part 4, a sterilizing agent is sprayed in the sterilization processing equipment part 5, and after passing through the UV lamp irradiation part 6, Dry in the hot air drying section 7, and liquid filling section 8,
It consists of a series of steps including a top heating section 9, a top pressure sealing section 10, and a filling and packaging process under aseptic conditions. This sterilization processing device 5 mainly uses a method of mixing hydrogen peroxide solution into pressurized air as a sterilizing agent and spraying it into the container. A mist of sterilant also adheres to the nozzle. Therefore, the nozzle 11 spaced apart from the container 3 has a third
As shown in the figure, a mist of sterilant 1 is applied to its outer circumferential surface.
2 adheres to the container 3, and this sterilizing agent gradually becomes larger water droplets 13 and falls into the inside of the container 3, a so-called drop-off phenomenon occurs.

Problems to be Solved by the Invention Therefore, the present invention aims to provide a sterilization treatment device that uses a sterilizing agent such as hydrogen peroxide in an aseptic packaging system. It is an object of the present invention to provide a spray nozzle for a bacteria processing device that does not cause water to adhere to water droplets and fall into a container.

Measures to solve the problem By mixing the sterilant and pressurized air in the spray nozzle,
A cover with a built-in heater is placed concentrically around the outer periphery of the spray nozzle, which is configured to spray from the spray nozzle at the tip of the spray nozzle, so as not to affect the spray nozzle. In addition to preventing the sterilizing agent from adhering to the outer surface of the cover, the sterilizing agent adhering to the outer surface of the cover is evaporated by a built-in heater to create a spray nozzle for a sterilization device that does not cause the so-called drop-off phenomenon. .

Function: When sterilizing agent and compressed air are mixed and sprayed in the spray nozzle, the outer surface of the spray nozzle inserted into the container is covered with a cover, which prevents the sterilizing agent from adhering to the outer surface of the nozzle. Furthermore, since the sterilizing agent adhering to the outer surface of the cover is evaporated by the heat of the cover heated by the heater, it does not remain on the surface and does not cause the drop-off phenomenon.

Example Embodiments of the present invention will be described with reference to the drawings.

Fig. 1 is an explanatory diagram showing the relationship between the spray nozzle and the container according to the present invention, Fig. 2 is an explanatory diagram showing an example of a sterile packaging system, and Fig. 3 is an explanatory diagram showing the state of sterilizing agent adhering to a conventional nozzle. It is.

The nozzle 11 has a spout 14 at its tip, mixes pressurized air and sterilizing agent within the nozzle 11, and
In the spray nozzle of the sterilization processing apparatus according to the present invention, a cylindrical cover 16 containing a heater 15 is provided around the nozzle 11. The cover 16 covers the nozzle 11
It has a diameter slightly larger than that of the nozzle 11, completely covering the entire nozzle 11, and has a central opening 17 from which the nozzle outlet 14 projects from its tip surface. The heater 15 provided inside the cover 16 is also connected to the cover 1.
It is composed of a cylindrical electric heating element having the same shape as 6, and is connected to a power source at an appropriate location of the sterilization processing apparatus 5. The container 3 transported below the sterilization processing device 5 rises to the position of the sterilant spray nozzle 11, stops at the highest position, and then descends. Pressurized air containing a sterilizing agent is ejected from the tip outlet 14 of the spray nozzle 11 inserted into the container 3 until the container 3 stops at the highest position and when the container 3 descends to sterilize the inner surface of the container 3. At that time, the sterilizing agent adhering to the cover 16 around the nozzle 11 inserted into the container 3 is removed by the cover 16 heated by the heater 15.
It evaporates quickly due to the heat.

Effects of the invention Since the cover covers everything other than the spray nozzle, it is possible to completely prevent the sterilant from adhering to the spray nozzle, and the sterilant that adheres to the outer surface of the cover is immediately evaporated by the heat of the heater. ,
The attached sterilizing agent does not turn into water droplets and drip into the container, and it is possible to prevent the sterilizing agent from remaining in the container without being completely dried and evaporated due to dripping.

[Brief explanation of drawings]

Fig. 1 is an explanatory diagram showing the relationship between the spray nozzle and the container according to the present invention, Fig. 2 is an explanatory diagram showing an example of a sterile packaging system, and Fig. 3 is an explanatory diagram showing the state of sterilizing agent adhering to a conventional nozzle. It is. 5... Sterilization processing device, 11... Spray nozzle, 1
2... Adhesive mist, 13... Water droplets, 14... Spout, 15... Heater, 16... Cover, 16...
...Central hole.

Claims (1)

[Scope of utility model registration request] A spray sterilization device characterized in that a cylindrical cover with a built-in heater is attached to the outer periphery of a spray nozzle having a spray nozzle at its tip, and the spray nozzle protrudes from a central hole provided on the end face of the cover. nozzle.