FACILITY FOR GAS WITHDRAWAL Russian patent published in 2010 - IPC F16K31/22 F16K24/00 

FIELD: machine building.

SUBSTANCE: facility for gas withdrawal consists of case, of cover with outlet channel, of installed in case float with sealing unit for pressure tight outlet channel shut-off and with float weight compensation unit. A protective jacket is arranged in the case of the facility. The float and the float weight compensator are installed inside the jacket. The float weight compensator corresponds to a weight balancer in form of a shell of regulated weight rotation coupled with the float by means of a rack-and-gear mechanism ensuring smooth motion of the balancer and float in opposite directions under effect of transported fluid. The weight balancer is installed concentric to cylinder surfaces of the float and the protective jacket. Pressure of withdrawn gas supplied via a relief valve and a pneumatic cylinder unloads the float and repeatedly opens the outlet channel; the relief valve is installed on a lower branch of the facility, while the pneumatic cylinder is arranged in an upper branch of the facility above the float.

EFFECT: simplification of facility.

5 cl, 2 dwg