دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: a motor-driven paddle or blade used to mix the liquids and solids in drilling mud.

n: A mechanically driven impeller used to stir the drilling fluid to assist in the suspension of solids, blending of additives, and maintenance of uniform consistency.

n: a compressor in which the flow of gas to be compressed is moved away from the centre rapidly, usually by a series of blades or turbines. It is a continuous-flow compressor with a low pressure ratio and is used to transmit gas through a pipeline. Gas passing through the compressor contacts a rotating impeller, from which it is discharged into a diffuser, where its velocity is slowed and its kinetic energy changed to static pressure. Centrifugal compressors are nonpositive-displacement machines, often arranged in series on a line to achieve multistage compression.

n: a pump with an impeller An electric submersible pump is a centrifugal pump.

n: A machine for moving fluid by spinning it using a rotating impeller in a pump casing with a central inlet and a tangential outlet. The path of the fluid is an increasing spiral from the inlet at the center to the outlet, tangent to the annulus. In the ann

pump with an impeller or rotor that spins in a housing and the drag forces on the fluids cause them to flow.

n: a fluid connection between a prime mover and the machine it drives;it uses the action of liquid moving against blades to drive the machine. Also called fluid coupling.

n: certain hydraulic transmision assembly that composed of two impeller of turbine and pump.

n: a device mounted on the end of the drawworks shaft of a drilling rig. It serves as an auxiliary to the mechanical brake when pipe is lowered into the wen. The braking effect is achieved by means of an impeller turning in a housing filled with water. Sometimes called hydraulic brake or Hydromatic@ brake.

n: a kind of accessorial brake that join with shaft of drilling rig.

n: the correspondly speed of turbine main axis when the curve of speed in mid flow is consistent with the frame orientation of the impeller

n: a set of mounted blades used to impart motion to a fluid (e.g., the rotor of a centrifugal pump).

the rotating pump component that drives the fluid in a centrifugal pump.

n: a rounded blade on a displacement meter that separates the liquid stream into discrete quantities.

n: it formed by motor, impeller shaft and impeller.

n: a centrifugal pump that develops pressure by means of impellers operating in series. Also called pump stage. See electric submersible pumping.