Venturi taper pipe flow meter

• Main Authors: ZHAI XIAOJIN, SHEN XINJIAN, SHAO PENGCHENG
• Format: Patent
• Language: Chinese; English
• Published: 07.12.2016
• Subjects: MEASURING; MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUIDLEVEL; METERING BY VOLUME; PHYSICS; TESTING

The invention provides a Venturi taper pipe flow meter. Mainly, an inlet straight pipe is connected with a diffusion taper pipe through a shrinkage taper pipe, and upstream pressure tapping holes are distributed in the inlet straight pipe. The upstream pressure tapping holes are communicated through a grading ring. An upstream pressure drawing pipe communicated with the grading ring is connected with one end of a differential pressure transmitter. An inner taper throttling element is embedded into the outlet end in the shrinkage taper pipe, downstream pressure tapping holes communicated with the inner taper throttling element are formed in the position, on the downstream face of the inner taper throttling element, of the shrinkage taper pipe, and a downstream pressure drawing pipe communicated with the downstream pressure tapping holes is connected with the other end of the differential pressure transmitter. An inlet shrinkage taper pipe bundle is used for rectifying a fluid field, the static pressure differe