دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: a type of open tank prover that has a gauge glass on the neck of the prover but not on the bottom of the prover. Compare wet-bottom prover.

n: the section of reduced cross-sectional area at the top and/or rottom of an open tank prover. It has visible graduations to enable measuring small volumes.

n: a device used to determine the accuracy of a meter. Two popular types are pipe provers and open tank provers. A pipe prover has a calibrated pipe that contains a known volume. A sphere displaces oil or liquid product through the pipe while the meter being proved registers the amount of oil or liquid displaced. The meters reading is then compared to the known volume in the pipe. An open tank prover is a calibrated tank that contains a known volume. Oil or liquid product is put into the tank while the meter being proved registers the amount. The meters reading is then compared to the known volume in the tank.

n: a relatively small calibrated tank, open to the atmosphere. Often used to prove meters at loading racks. In use, the meter to be proved is set at zero and the prover tank is filled to a calibrated height while the meter registers the amount of liquid flowing d1rough it. When the tank is filled, the calibrated volume in it is compared to the volume the meter registered. If the meter is inaccurate, it is adjusted or a factor is used to compensate for the inaccuracy.

n: an open tank prover with a gauge glass on the bottom of the prover. Compare dry-bottom prover.