Turbine water flow meter

Ⅰ.Simple narrative
GLTB series turbine flow sensor (hereinafter referred sensor) based on torque balance principle, a speed-flow meter. Sensor is simple in structure, lightweight, high precision, are reproducible, and to react quickly, such as installation and maintenance easy-to-use characteristics, widely used in petroleum, chemicals, metallurgy, water, paper and other industries, flow metering and energy conservation is the ideal instrument.
If the show has a special function in supporting instrument can also be used for quantitative control, such as excessive alarm. The explosion-proof products selected this type (ExmIIT6), in an explosive used in the dangerous environment.
Sensor applies to working temperature viscosity of less than 5 × 10-6m2 / s media, the viscosity greater than 5 × 10-6m2 / s liquid, it is necessary to conduct real solution for sensor calibration before use.
If users needed special form of sensor, consultations orders, and take anti-explosive type sensor, in the order in to illustrate this.
Ⅱ.GLTB type turbine flow sensor
1.Structural features and working principle
(1) Structural features
Sensor Thrust bearings for carbide-not only guarantee the accuracy, improve wear resistance, but is simple in structure, as well as removable solid convenient features.
 (2) working principle
Shell fluid flows through the sensor, flow impeller blades with a certain perspective, the impact of the fluid leaves a rotation torque to overcome the frictional torque and fluid resistance after rotating blades, the balance in the moment after the speed stability, under certain conditions, and the flow rate is proportional to rotational speed, as there are leaves I. magnetic, it was in signal detection device (from the permanent magnet and coil component) in the magnetic field, magnetic rotating blade cutting lines, cyclical changes in the coils of flux, so that the two ends of induction coils, a pulse signal, this signal amplifier Large plastic, and create a certain level of continuous rectangular pulse wave can be shown to Remote Meter shows that the instantaneous flow or fluid volume. The flow in a certain area, pulse frequency f and the fluid flows through the sensor is proportional to the instantaneous flow rate Q, flow equation:                                                                       

Where:
F - pulse frequency [Hz]
K - Sensor Instrument coefficient [1 / m3], is given by the single calibration. If [1 / L] for units
Q - Transient fluid flow (working condition) [m3 / h]
3600 - conversion factor  
Each sensor instrumentation coefficient by the factory fill in the certificate, k values for the display panel of the matching can be instantaneous flow and show the cumulative total.