PICKUP OF TACHOMETRIC BALL FLOWMETER ( VARIANTS ) Russian patent published in 2003 - IPC

FIELD: instrumentation. SUBSTANCE: invention can find use in chemical, petroleum, petrochemical industries as well as in nuclear power engineering and medicine. Pickup of tachometric ball flowmeter has case which space houses contraction, isolated chamber of ball, blades of vortex generator, turbulence chamber and diffuser placed in sequence. Case is provided with drain conduit with control valve that connects isolated chamber of ball with holes in walls of diffuser which makes it possible by that to adjust graduation coefficient of pickup, to change measurement range and to remove foreign inclusions from isolated chamber of ball. EFFECT: unification of measuring aids, widened measurement range, raised measurement accuracy and prolonged service life of pickup. 4 cl, 2 dwg