Proteus Industries Inc. - Various Types of Water Flow Meters and Its Benefits
Water flow meters are basically the
tools which are used to measure the consumption of water. It measures the total
amount of water used by any source through different methods. These meters are
designated in specific points to identify leakages of water.
Although modern technology has led
to the invention of various types of flow meters, two of the most commonly used
meters include the positive displacement meter and the velocity meter. There
are devices which combine the features of both these meters are known as the
compound meters. These devices particularly use a valve mechanism which directs
the flow of water into both these meters so that it is easy to obtain readings
from both the devices.
Types of Flow Meters:
Positive Displacement Meters: These meters include a small chamber which holds a measured
volume of water. The flow of water is measured and compared to the previously
held volume of liquid. The flow rate of the liquid is calculated by measuring
the number of times the chamber is filled and emptied. These instruments are
most commonly found in homes and apartments as it is ideal for measuring low
flow rate.
Velocity Meters: These devices measure the velocity of the flow of liquid
and translate it into the volume of the flow of water. Different mechanisms are
used by these machines to measure the velocity and translate the data. Some of
the most popularly used meters include the ultrasonic, venturi, multi-jet,
magnetic, orifice, propeller meters and so forth. All these devices measure the
velocity of the flow. It is quite ideal for high flow areas and therefore it is
used in businesses which utilize large flow of liquids.
Mass Flow Meters: Also called inertial flow meters, these devices measure the
mass flow rate of fluids that travel through a tube. The calculations are mass
of fluid traveling pass a static point per time unit. This type of flow meter
is used in mass-related processes because they measure force which results from
the speeding of mass. Two popular types of mass flow meters include the
Coriolis mass meter and the thermal dispersion flow meter.
Coriolis flow meters rely on the Coriolis Effect.
This occurs when a mass moves through a rotating system experiencing a special
force which acts perpendicular to the motion’s direction and to the axis
rotation. Here on earth, this effect deflects moving objects towards the right
side in the northern hemispheres and in the southern, to the left. Coriolis
flow meters provide a direct measurement of fluid density. These are highly
accurate, irrespective of the liquid or gas being measured. The same
measurement tube may be utilized for bitumen and hydrogen gas without
recalibration. Coriolis flow meters are often used to measure the flow of
natural gas. They are also used in industries such as power, mining,
pharmaceuticals and waste water.
Open Channel Flow Meters: This type of flow meter measures the flow of liquids that
are open in the atmosphere during the flow measurement path. The liquid being
measured may either be contained in a pipe that is not filled with liquid and
opened to the atmosphere during installation point of the flow meter or opens
in the atmosphere the entire time. Level measurement and velocity measurement
are both required to arrive at an accurate flow rate. Typically, weirs, flumes,
and v-notches are used to measure the flow liquids. These are dam-like
arrangements which enable a limited or free-flow of fluids, based on the size
and shape of the structure. Open channel flow meters are often used to measure
free flowing fluids such as rivers, streams, sewer systems and irrigation
channels.
In addition to the analog meters,
digital water flow meters are gaining immense popularity in the current scenario.
Digital devices are used in scientific and commercial fields as it is quite
efficient and accurate. The digital flow meters utilize different techniques
and mechanisms to calculate the flow of liquids. The magnetic flow devices and
the ultrasonic devices are the two common types of digital devices used widely.
It is quite easy to interpret the data on digital display systems. It is also
possible to link the data to the valve of the pipe systems and adjust the flow
accordingly. The operators can also retrieve the information from the digital
system easily.
Water flow meter display systems are
available in two different varieties which include the circular and straight.
These displays can be found on the face of the meters. Most of the conventional
meters include circular registers which are quite complex to calculate. It uses
a series of dials and therefore the usage of water is calculated with the help
of a string of numbers.
These devices include a large number
of beneficial features apart from the advantage of accuracy in measurements. It
facilitates in increasing the power of water supply with a reduced power
supply. Most of these devices are designed to withstand the vagaries of nature.
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