DEVICE FOR CALIBRATING FLOW METERS AND LIQUID COUNTERS (VERSIONS) Russian patent published in 2005 - IPC

FIELD: flow meters.

SUBSTANCE: according to version 1, device has head reservoir, tested part of pipe-line provided with calibrated flowmeter, measuring chamber disposed inside measuring vessel, connecting pipe-lines and lock-regulating accessories. Measuring vessel is connected with head reservoir through pipe-lines. Measuring chamber has its lower part connected with lock-regulating system through pipe-lines. Measuring chamber is also connected with calibrated flowmeter and with top part of measuring vessel at the level being lower than level of disposition of top edge of measuring chamber. There is level transducer at output of measuring chamber outside measuring vessel; the level transducer is connected with timer. To keep precised level of liquid inside measuring vessel and measuring chamber non-depending on atmospheric pressure, reservoir and gas cavity of measuring vessel are connected together by pipe-line inside which the intermediate reservoir is installed. According to version 2, device has several measuring vessels provided with measuring chambers. Measuring vessels communicate with head reservoir and measuring chambers are connected with calibrated flowmeter disposed in tested part of pipe-line. There are level transducers at outputs of measuring chambers, the level transducers are connected with timer.

EFFECT: improved precision of calibration; widened range of consumption measured.

7 cl, 2 dwg