Abstract: The invention relates to a method for the in-line processing of liquid or pasty or semi-liquid media or further, media which contain solid elements in a liquid base, in pipe for conveying the medium between two steps in a plant by direct injection of a cryogenic fluid into the pipe, characterized in that the method uses, for the injection into the pipe, an injection device including a hollow cylindrical body in which a valve urged by a spring is inserted, said injection device including a through-channel substantially parallel to said valve and supplied with a pressurized cryogenic fluid, wherein one end of the through-channel is connected to the cryogenic fluid supply system while the opposite end opens at the seat of the valve.

Abstract: The invention relates to a method for filling a tank with a cryogenic liquid from a storage unit, a filling process during which a part of the cryogenic liquid is transformed into a gas phase in the tank, and in which, during the filling, at least part of the gas thus formed is discharged, characterized in that the method comprises providing a filling station containing a first channel which connects the storage unit to the tank and enables the transfer of cryogenic liquid from the storage unit to the tank, and a second channel which connects a gas outlet of the tank to the filling station and makes it possible to transfer the gases to be discharged from the tank to the filling station, where said gases will be discharged to the outside, the station comprising a means for detecting the presence of cryogenic liquid in the gas transferred to the station, the detection information being transmitted to a unit for acquiring and processing data, inside or outside the station, suitable for automatically stopping the

Abstract: A method for managing access to a confined space which is cooled by the direct injection of a cryogenic fluid, comprising at least one system for closing the confined space, which can prevent access to said confined space and can be opened/closed to a variable and controllable degree, and a data acquisition and processing device. The device can: control the open or closed state of the closure system; set and control the degree to which the closure system is open/closed; ensure that a time delay (TP) is respected every time the closure system is closed, after which time delay the injection of cryogenic fluid into the space resumes; and, at the request of a user, implement the cycle for opening the closure system. The device determines the time that has elapsed (TE) in the closed position since the last closure cycle of the closure system and compares TE to TP. If TE=TP the device immediately authorizes the opening of the closure system.

Abstract: The invention relates to a process for the preparation and delivery of ozonated water to at least one user point, according to which a storage buffer tank is provided for the ozonated water, and an upstream ozonation loop is provided, making it possible to feed the tank with ozonated water, the upstream ozonation loop comprising a component for controling the flow of water flowing in the loop. A fresh-water supply line is also provided, connected by its downstream part to the upstream ozonation loop and fitted with a component for interrupting the freshwater flow, the loop portion located between the tank and the connection point of the fresh-water supply line being fitted with a component for interrupting the recirculation flow upstream of the tank.