Detailed Product Description
with 4~20mA output, Cost effective, accurate and reliable meter for
volumetric and mass flow measurement
working principle
vortex flowmeters measure the steam,air and low viscocity flow rate
on the basis of carman and strouhal theory about the apperance of
flowrate and the relation between the swirl and the flowrate.
plumb in a triangular prism (occurrence of the whirl)to the
body.When there is a flow of fluid, the opposite direction
systematic of Carmen whirl will be generated behind of the
triangular prism. vortex shedding frequency F is in proportion to
the rate of the flow V. detect the Nos of the vortex through sensor
probe,then the rate of flow will be caculated. And then caculate
the fluid volume and flowrate according to the diameter.
Computing formula as follows:
F=St*V/(1-1.27*d/D)formula 1
Q=3600*F/K formula 2
M=Q*pformula 3
lFthe vortex frequancy cause when fluid flow through the
triangular.(unit:Hz)
lStstrouhal constant
lVthe speed of flow in the tube(m/s)
ldwidth of triangular in body of vortex
lDvortex diameter(unit:m)
lQinstantaneous volume flow rate(unit:m3/h)
lKvortex factor(unit:pulse quantity/m3)
lMinstantaneous(unit:kg/h)
lPthe fluid density(kg/m3)
Different diameter vortex sensor,the meter factors are
different.the value is setable through set flowrate.The action is
to set the pulse quantity per cubic meter.
applications:
1.Ideal for high temperature and high velocity steam
2.Power Generationsteam applications
3.IndustrialHVAC, district energy management
4.Commercialbuilding, campus and facility energy management
5.Oil & gasallocation of natural gas
6.Petrochemicalmass balancing, reaction processes heating
Feasures and benefits
1. Multivariable vortex flowmeter for measuring volumetric flow,
temperature, pressure, density, and mass flowusing a single meter
2.Measures most gases, liquids and steam without the need to
recalibrate
3.Cost effective, accurate and reliable meter for volumetric and
mass flow measurement
4.Remote monitoring and integration to DCS
5.Significant cost savings through reduced installation costs,
wiring runs and services support.
Technique target:
1accuracy class:1.0
2norminal pressure:1.6Mpa 2.5Mpa 4.0Mpa and larger
3the fluid temperature:-40~350
4pressure loss:drag coefficient cd≤2.4
5power supply:12~24VDC
6explosion proof:IaiiCT6(Ex ia IIB T6)
7output:voltage pulse low level(IV high voltage)6V standard current
signal4~20mA
