TECHNOLOGICAL COMPLEX FOR TANKS NEUTRALISATION AFTER NITROGEN OXIDATORS DRAINING Russian patent published in 2017 - IPC B08B9/93 

FIELD: technological processes.

SUBSTANCE: technological complex contains nitrogen oxide removal system 1, including storage tank 11 and vacuum compressor pump10, heated water tank 2 with metering pump 3, tanks 4 and 5 with process solutions, discharge nozzles of which with stop valves 26 and 27 are connected by a pipeline, and the pipeline is connected to the suction pipe of the second metering pump 6. Pumps 3 and 6 are connected to neutralised tank 14. The gas space of tank 14 is communicated with nitrogen oxidant vapour neutralisation system 7 and drying system 8 of the inner surface of tank 14, at the outlet of which check valve 37 is installed. The discharge connection of the first metering pump 3 is additionally connected to additional container 9 for neutralisation products.

EFFECT: quick and effective neutralisation of the tank after nitrogen oxidants draining with minimal labour and time costs.

1 dwg, 2 tbl