Abstract: A cleaning device includes an external casing (1) forming a suction hood and an upper suction mouth (2) and being provided with drive arrangements arranged on each side and equipped with independent motors and corresponding transmission mechanisms on each side; and cleaning rollers (51, 52, 53, 54); sets of internal cleaning rollers (53, 54) disposed close to the center of the hollow interior of the casing (1) and having a width approximately equal to the distance between the side elements (11) of the casing (1); sets of external cleaning rollers (51, 52) located close to the front and rear edges of the casing (1) of the cleaning device and having a total width slightly greater than the width of the casing; a resilient joint at the support for the external rollers; an adhesion turbine, a suction turbine, and auxiliary drive wheels on the internal cleaning rollers.

Abstract: A dosimeter with at least one radiation sensor and a rechargeable electrical accumulator, includes a single sensor for sinusoidal X-radiation and for ? (gamma) radiation, a filter for the radiation sensor, a first amplification stage for the sensor, a circuit for processing the signal received by the sensor, and converting the signal into a dose value or a value that can be interpreted as a dose, a memory module in which the information on the dose received in the fixed period is stored, a circuit for recharging the electrical accumulator and a communications module, a dosimeter monitoring device, which includes at least one base for recharging the dosimeter with a recharging circuit, and a system for communication with the dosimeter.

Abstract: A portable apparatus for borating a continuous flow of water includes metering assemblies provided with corresponding grinders and feeders; a feeder for supplying water to the circuit; a meter and/or flow regulator for adapting the concentration of the products supplied to the water; a pumping arrangement for conveying the mixture to a mixing reactor; a reactor with a mechanical mixer; a recirculation line of the mixer; and a supply pumping arrangement, preferably forming two units in independent cages or containers, including a crane arrangement for supplying the boration products in big bags.

Abstract: A device for cleaning the cover flange of the reactor vessel in a nuclear plant includes a pull arrangement for moving the device in translation along the perimeter of the flange, and an arrangement for removing dirt from the flange, the device being formed mainly by: a central body provided with a dirt removal device, the central body including an outer casing having a front support and a rear support attached thereto; a front wheel assembly supporting a front wheel support; a rear wheel assembly supporting a rear wheel support; a device for adjusting the angular position of the front wheel support in relation to the central body; and a device for adjusting the angular position of the rear wheel support in relation to the central body, and the central body is provided with a floating inner body.

Abstract: A cleaner includes an external casing forming a suction hood, an upper suction mouth, the casing also being provided with a drive arranged on each side and equipped with independent motors and corresponding transmission mechanisms on each side, and cleaning rollers; sets of internal cleaning rollers disposed close to the center of the hollow interior of the casing and having a width approximately equal to the distance between the side elements of the casing; sets of external cleaning rollers located close to the front and rear edges of the casing of the cleaning device and having a total width slightly greater than the width of the casing; a resilient joint at the support for the external rollers; a pair of adhesion turbines; auxiliary drive wheels on the internal cleaning rollers; a flotation body connected to the casing and having a fixed and/or variable volume; and laterally mobile turbines.

Abstract: A method for regeneration of internal conduit surfaces by thermal projection of metals, includes inserting a device including a vehicle having a rolling assembly to permit rolling of the vehicle and carrying a thermal projection system, through a manhole in a conduit installation, including the steps of inserting the device in a conduit with the rolling assembly in a retracted position, and expanding the rolling assembly inside the conduit until the device is centered in the conduit; inserting electrical, pneumatic and/or hydraulic conduits and conduits for supplying metal to be thermally projected, through the manhole, such that the conduits are connected with the vehicle; positioning a regeneration device including the thermal projection system connected with the vehicle by a remote-control pulling system in a particular position to be regenerated; thermally projecting metal from the regeneration device; advancing the vehicle and connected regeneration device to a new regeneration position.

Abstract: A method for regeneration of internal conduit surfaces by thermal projection of metals, includes inserting a device including a vehicle having a rolling assembly to permit rolling of the vehicle and carrying a thermal projection system, through a manhole in a conduit installation, including the steps of inserting the device in a conduit with the rolling assembly in a retracted position, and expanding the rolling assembly inside the conduit until the device is centered in the conduit; inserting electrical, pneumatic and/or hydraulic conduits and conduits for supplying metal to be thermally projected, through the manhole, such that the conduits are connected with the vehicle; positioning a regeneration device including the thermal projection system connected with the vehicle by a remote-control pulling system in a particular position to be regenerated; thermally projecting metal from the regeneration device; advancing the vehicle and connected regeneration device to a new regeneration position.