Turbine blade speed of turbine flow meter as a function of flow

Abstract: The information on the change of the turbine blade speed with the flow rate of the turbine flow meter is provided by the excellent flow meter and flow meter manufacturer and quotation manufacturer. The speed of the turbine blades of the turbine flowmeter varies with the flow rate. The impeller of the turbine flowmeter has a range of applicable flow rates. The influence of the shaft and bearing is obvious below 1/3 of this flow rate range, and the influence of the shaft and bearing increases with the flow rate after exceeding 1/3 of the applicable flow rate. More flowmeter manufacturers choose models and price quotations. You are welcome to inquire. The following is the details of the turbine blade speed change with the flow rate of the turbine flowmeter. The speed of the turbine blades of the turbine flowmeter varies with the flow rate. The impeller of the turbine flowmeter has a range of applicable flow rates. Below 1/3 of this flow rate range, the influence of the shaft and bearing is obvious. When the flow rate exceeds 1/3 of the applicable flow rate, the influence of the shaft and bearing will gradually increase linearly with the increase of the flow rate. When the upper limit of the applicable flow rate exceeds the accuracy requirement, the shaft and the bearing will be enlarged. And the impact of the bearing rises significantly. The reluctance of the magnetic circuit changes, thereby generating an inductive signal. The signal is amplified and shaped by the amplifier and sent to the counter or frequency meter to display the total accumulated flow. At the same time, the pulse frequency is converted from frequency to voltage to indicate the instantaneous flow. The speed of the impeller is proportional to the flow, and the number of revolutions of the impeller is proportional to the total flow. The output of the turbine flowmeter is a frequency modulated signal, which not only improves the anti-interference of the detection circuit, but also simplifies the flow detection system. Its turndown ratio can reach 10:1, and the accuracy is±within 0.2%. Turbine flowmeters with low inertia and small size have time constants of up to 0.01 seconds. The measured fluid impinges on the turbine blades to make the turbine rotate, and the rotational speed of the turbine changes with the change of the flow rate, that is, the flow rate is large, and the rotational speed of the turbine is also large. After the preamplifier is amplified, it is sent to the display instrument for counting and display, and the instantaneous flow and cumulative flow can be obtained according to the number of pulses and cumulative pulses per unit time. The sensor should detect the movement of the rotating body and convert it into a pulse digital electrical signal. The output value of the electromagnetic coil voltage is close to a sinusoidal curve. The frequency range of the pulse signal changes linearly with the measured flow rate, and the typical range is 10:1. 25:1 and 100:1 three specifications. The resistance of the electromagnetic coil is generally less than 2000Ω, more than this value may be damaged. Turbine flowmeter consists of turbine, bearing, pre-amplifier and display surface. The measured fluid hits the turbine blades to make the turbine rotate, and the speed of the turbine changes with the change of the flow rate, that is, the flow rate is large, and the speed of the turbine is also large. After the pre-amplifier is enlarged, it is sent to the display surface for counting and display. According to the number of pulses and the cumulative number of pulses per unit time, the instantaneous flow and cumulative flow can be obtained. The above is the whole content of this article. You are welcome to inquire about the flowmeter selection and quotation of our factory. 'The turbine blade speed of the turbine flow meter varies with the flow'

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