Description
LZYN Series Mass Flowmeter
(hereafter we call LZYN Mass Flowmeter) is designed according to
the Coriolis Principle. It can be widely used for the process
detecting and custody transfer/fiscal unit in many industries such
as petroleum, petroleum and chemical, chemical industry, pharmacy,
paper making, food and energy, and so on. As a fairly advanced kind
of flow measurement instrument, it has been paid attention by the
circle of measurement and accepted by many customers home and
abroad.
Micro-bend type mass flowmeter
is not mentioned in this manual. If you’re interested in micro-bend
type mass flowmeter, please contact us for the details. Appendix 2
shows the comparison between micro-bend type and common
type.
1.2
Principle
LZYN Mass Flowmeter is designed
according to the principle of Coriolis force. Under the alternating
current effect, the magnet and coil installed on the measuring tube
will make two parallel measuring tubes vibrate according to some
fixed frequency. Once there is flow passing through the pipes,
Coriolis force will give rise to deflection (phase shift) on the vibration of two pipes and
thedeflection
of vibration is directly proportional
to the mass flow of fluid. Pick up them and the mass flow rate
could be calculated.
The vibration frequency of
measuring tube is determined by the total mass of measuring tube
and inner fluid. When the fluid density changes, the vibration
frequency of measuring tube will be also changing, as a result, the
fluid density can be calculated.
The temperature sensor installed
in the pipeline can obtain the real-time temperaturewith the
coordinationof the measuring circuit.
1.3
Feature
Comparing with the traditional
flow measurement method, LZYN Mass Flowmeter has following obvious
merits:
1.3.1. Enable
to measure directly mass flow rate of fluid in the pipeline without
changing any parameters, which avoids the some measurement error of
intermediateprocess. Its mass flow rate can be high
accuracy and good repeatability within bigger range of turndown
ratio.
1.3.2. Fluid
measured can be more extensive, such as the steady uniform flow of
common viscosity fluid, the high viscosity fluid, non-Newtonian
fluid, slurry containing some solid components and the liquid
containing some trace of gas.
1.3.3. Due to
the small vibration, measuring tube of the LZYN Mass Flowmeter can
be regards as non-moving parts, which will reduce the maintenance
of flow meter, enhance the stability and lifetime.
1.3.4. Besides the mass flow measurement, the density
and temperature and even consistency can also beobtained and
output.
