METHOD FOR REMOVING GAS FROM A VESSEL DURING DECOMMISSIONING Russian patent published in 2008 - IPC F17C7/00 F17C9/00 

FIELD: operation of vessels used in manufacture, processing, accumulation, transportation and usage of compressed and liquefied gases of various purposes in all industrial, engineering and economic branches.

SUBSTANCE: in accordance to the invention, during decommissioning internal hollow of a vessel in its upper part is connected to technological line, and into lower part of internal hollow of vessel water is injected under pressure, gas, contained in the vessel, is removed from the vessel and forced out into the technological line. After that water influx is stopped, internal hollow of vessel in its upper part is disconnected from technological line and connected to atmosphere, and in lower part internal hollow of vessel is connected to outlet branch pipe, through which water is let out of the vessel.

EFFECT: method makes it possible during decommissioning of vessels to prevent losses of inert blowing gas during vessel blowing, to prevent losses of marketable gas, to reduce costs of production of gas analyses, to increase safety when removing flammable, explosive and toxic gases, increased environmental safety.

7 dwg