Turbine flowmeter factory

『Turbine flowmeter factory』Related information(clamp on meter|electromagnetic meter|venturi meterrotameter|orifice meter|ultrasonic flow meter|mass flow meter|coriolis mass flow meter|coriolis flow meter|magnetic flow meter|magmeter flow meter|magflow flow meter|mag meter flow meter|electromagnetic flow meter|vortex flow meter|turbine flow meter|thermal mass flow meter|thermal flow meter|rotameter flow meter)

What are the components of a liquid turbine flowmeter? Hello, KNKE, a manufacturer of imported liquid turbine flow meters from the United States, is pleased to answer your question. One The turbine flowmeter of the KNKE brand imported from the United States generally consists of the following typical five parts. The first part is the body, which is usually made of steel or cast iron and connected by flanges at both ends. Small caliber meters also use threaded interfaces. The second is the measuring component. The turbine flowmeter can also use an external lubrication servo oil pump to lubricate the bearings, but be careful not to over lubricate them. The third is the counter, which displays important information on the counter panel. The fourth is the rectifier, which is used to keep the fluid flowing through the turbine flowmeter in a regular state, thereby eliminating the adverse effects of disturbances on the measurement and achieving high measurement accuracy. The fifth is a magnetic coupling transmission device, which separates the counter part in the atmospheric environment from the measured gas and transmits the rotation of the measuring component to the counter. (1) The turbine is made of magnetic stainless steel material and equipped with spiral blades. The number of blades varies depending on the diameter, ranging from 2-24 pieces. In order for the turbine to have a good response to flow velocity, it is required that the mass be as small as possible. The general requirements for the structural parameters of turbine blades are: blade inclination angle of 10 ° -15 ° (gas), 30 ° -45 ° (liquid); The leaf overlap degree P is 1-1.2; The gap between the blades and the inner shell is 0.5-1mm. The bearings of the turbine flowmeter type source imported from the United States, KNKE brand, generally use hard alloy bearings with sliding fit, requiring good wear resistance. Due to the axial thrust generated by the fluid passing through the turbine, the friction torque of the uranium bearing increases, accelerating the wear of the uranium bearing. In order to eliminate the axial force, hydraulic balance measures need to be taken in the structure. The old model principle of this method is shown in Figure 3-3. Since the diameter DH at the turbine is slightly smaller than the diameter Ds at the front and rear supports, the flow in the turbine section is interrupted and expanded, the flow velocity decreases, and the fluid static pressure increases P. The static pressure of P will counteract some of the axial thrust. (3) The preamplifier consists of two parts: a magneto electric induction converter and an amplification shaping circuit. Magnetoelectric converters in China generally use a reluctance type, which consists of a permanent magnet and an externally wound induction coil. When the fluid passes through and rotates the impeller, the magnetic resistance of the blades is minimized when they are directly below the permanent magnet, and the magnetic resistance is maximized when the gap between the two blades is below the magnet. The turbine rotates, constantly changing the magnetic flux of the magnetic circuit, generating a changing induced potential in the coil, which is sent to the amplification shaping circuit and becomes a pulse signal. The frequency of the output pulse is proportional to the flow rate through the flowmeter, and its proportionality coefficient K is (3-1), where f - the frequency of the output pulse of the turbine flowmet

『SILVER Official Website SERVICE』