METHOD FOR FILLING HERMETICALLY SEALED VESSELS, STATION FOR FILLING OF HERMETICALLY SEALED VESSELS AND CHARGING DEVICE Russian patent published in 1998 - IPC

FIELD: fire-fighting equipment. SUBSTANCE: station realizes the claimed method by creation of preliminary rarefaction in vessels with the help of vacuum pump. Station includes servicing tank connected through intake-charging tube with intake nozzle and filter-crusher and settling cyclone with charging device which is installed on throat of vessel to be filled, for instance, powder fire extinguisher. Charging device has regulated branch pipe for medium supply to provided for filling of fire extinguishing of any type-size with preset powder volume. Before filling, vessel and hollow of settling cyclone are evacuated. After disconnection of vacuum pump, valve on intake-charging tube is opened and powder is sucked into vessel. Excessive air is discharged through filter in settling cyclone. Filter-crusher installed on intake-charging tube provides for supply to vessel of granules of definite size. After 10-15 charging cycles, filter is subjected to reverse blowing by compressor connected to distributor. EFFECT: higher economic efficiency and reduced time of filling. 15 cl, 2 dwg