Simplified cleaning and filling device

Abstract

The invention relates to a device for delicate treatment within a close chamber, comprising a duct, the first end of which is for connection to the inside of the chamber, further connected to a means for pressure reduction, the function of which is to generate a drop in pressure in the chamber, to an outlet duct to remove the aspirated material, to a duct connected to a device for sudden pressuredrop and to an opening in the device which permits contact of the end of the duct with the ambient air when the pressure within the chamber reaches a value below a certain threshold.

Description

technical field [0001] [01] The present invention relates to a method and apparatus for filling, purging, open-type insertion into a closed or virtually closed enclosure. The invention is particularly suitable for complex shaped and / or difficult to access cavities. It has many applications including construction, chemical or food production plants, medicine and dentistry. Background technique [0002] [02] To clean a closed enclosure, it is known practice to make two openings in the enclosure in order to circulate a fluid, gas or liquid, possibly with chemical cleaning properties, at high pressure therein. The method quickly reaches its bounds: [0003] [03] - For some complex shaped enclosures, the walls that cannot be reached by fluid and are not cleaned; [0004] [04] - Furthermore, simple cycles require relatively long cleaning times and generally exhibit mediocre effectiveness. [0005] [05] To fill an air-filled closed or semi-closed chamber with a fluid or viscous...

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