The total number of rotor rotations and the speed of rotation are transmitted to the counting mechanism by the sealed coupling. The amount of liquid flowing through each revolution is eight times that of the sealed cavity in the figure. The rotor is driven by the pressure difference between the inlet and outlet of the flowmeter to rotate, so as to continuously measure the liquid at the inlet to the outlet after being measured in the sealed cavity.
The measurement chamber mainly has a sealed cavity formed by a pair of special rotors and cover plates as the flow measurement unit. Extended Reading: Rotameter vs Flow meter
The use of magnetic coupling can increase the working pressure and working temperature of the flowmeter, ensure safe operation, and reduce maintenance work. The magnetic coupling is mainly composed of active magnetic steel and driven magnetic steel.
#GEMU VISCOSITY METER SERIES#
The number of revolutions of the spiral rotor is transmitted to the meter head counter through a reduction mechanism composed of magnetic coupling and a series of gears. The flow meter is mainly composed of a body, a pair of spiral rotors, a magnetic coupling, a reduction mechanism, an adjusting gear, a counter, and a signaling device. Cylindrical gear transmitters can measure very small flow and quantify the small volumes of liquid.Įxtended reading: Positive Displacement Flow meter Technology The rotation of the gear is scanned non-contact, and each tooth generates a pulse with a very high resolution. The round gear transmitter has high machining accuracy and precise installation. At the same time, the pulse signal is sent to the frequency current conversion circuit, which converts the pulse signal into an analog current quantity, and then indicates the instantaneous flow value. The sensing coil sends the detected magnetic flux periodic change signal to the preamplifier, amplifies and reshapes the signal, generates a pulse signal proportional to the flow rate, and sends it to the unit conversion and flow integration circuit to obtain and display the cumulative flow value. When the transmitter gear cuts the magnetic field lines generated by the permanent magnet in the housing, it will cause the magnetic flux in the sensing coil to change. The signal amplifier is not in contact with the measured medium. The rotation speed of the round gear transmitter is detected by the sensor coil in the signal amplifier mounted on the watch case. Tool: Volumetric Flow Rate & Pipe Diameter to Flow Speed Calculator The circular gear flowmeter uses two circular gears to mesh and rotate. The metering part of the spiral rotor flowmeter is mainly composed of a metering box and a pair of uniquely designed spiral rotors.Įxtended reading: Cylinder Gear flow meter for micro flow measurement.Ĭircular gear flowmeter (spur gear flowmeter) It is suitable for flow measurement of medium with higher viscosity.Įxtended reading: Positive displacement flow meter working principle The oval gear flowmeter uses two oval gears to mesh and rotate. There are also common oval gear flow meters, helical flow meters, etc. For example, the circular gear flowmeter we will introduce in this article.
There are various types of gear flow meters, mainly named after the shapes of internal components. heavy oil, polyvinyl alcohol, resin, and other high viscosity media. It is especially suitable for the flow measurement of Maltose, syrup. Gear flow meters are used to accurately measure the flow or instantaneous flow of liquid in the pipeline continuously or intermittently. Measure the number of revolutions of the gear to know the flow rate of the liquid flowing through the instrument. The cavity between the gears is filled with liquid. Under the action of the fluid flow, a pressure difference is formed at both ends of the instrument inlet and outlet. With the flow of the medium, the gears mesh and rotate. It uses two or more elliptical gears to rotate at right angles to each other to form a T shape. It is a high-precision transmitter for measuring volumetric flow. The gear flowmeter is a positive displacement flowmeter.
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