| 摘要 |
FIELD: oil and gas industry.SUBSTANCE: lubricator includes a connection flange, a preventer, a sectional chamber and a sealing device. The sealing device consists of a sealed housing and sealing elements installed in the housing. An explosion-proof heating element of direct heating, which is insulated from the environment with a heat-insulating gasket and a protective casing, is fixed on the outer surface of the sealing device housing. The heating element is connected to an electric network of industrial frequency.EFFECT: creation of a simple, reliable and cheap device; improvement of operating efficiency of a lubricator under conditions of possible formation in its sealing device of ice hydrate plugs.1 cl, 1 dwg |
