『Small flow turbine flowmeter』Related information(flow rotameter|digital flow meter|balo meter|hydraulic flow meter|volumetric meter|positive displacement meter|pitot tube flow meter|displacement meter|cfm meter|variable area flow meter|inline flow meter|differential pressure flow meter|calibrated flow meter|velocity meter|paddle wheel flow meter|oval gear flow meter|anemometer hvac|multiphase flow meter|doppler flow meter|thorpe tube flowmeter|heat flow meter)
1. Types of ABB flow meters
As a leading global instrument manufacturer, ABBs flow meter product line covers various measurement principles. The following are the main types and characteristics of flow meters.
1. Differential pressure flow meters use Hongqing throttling devices (such as orifice plates and V-cones) to generate pressure difference for flow measurement, and are suitable for gas-liquid media in petroleum and chemical pipelines.
. The orifice plate structure is simple and cost-effective, but it has high pressure loss and requires a long straight pipe section; The V-cone has strong self rectification ability and high precision for small flow rates, but it needs to be calibrated regularly. The turbine flowmeter generates pulse signals through fluid driven turbine rotation, with an accuracy of ± 0.5% -1% and fast response. It is suitable for clean single-phase fluids such as aviation fuel and natural gas, but not resistant to particle wear and high viscosity media. The electromagnetic flowmeter is based on Faradays law of electromagnetic induction and measures the roundness of conductive fluids (such as sewage and acid-base liquids), without pressure loss and corrosion resistance, but not suitable for non-conductive media (oil and gas). The ultrasonic flowmeter uses time difference method (high-precision clean fluid) and Doppler method (containing impurity fluid), non-invasive installation, and no pressure loss., supporting large-diameter pipelines (DN3000+), commonly used for natural gas trade metering and intelligent water management5 The Coriolis mass flowmeter directly measures mass flow rate with an accuracy of up to ± 0.1%, suitable for chemical raw material proportioning, food i
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2. Science popularization: Precautions for installation of turbine flowmeter
Turbine flowmeter (impeller flowmeter) is a high-precision instrument that uses turbine rotation for flow measurement. It has the advantages of simple structure, high temperature resistance, and long service life.
. Attention should be paid to the following key points during installation:1. Installation method: The turbine flowmeter supports three installation methods, which should be selected reasonably according to the working conditions: flange installation: suitable for standard connections in pipeline systems, ensuring that the flange sealing surface is flat and the bolts are evenly tightened to prevent leakage. Threaded installation: Used for small-diameter pipelines (usually below DN50), attention should be paid to thread matching to avoid thread damage caused by violent tightening. Clamp on installation: suitable for temporary measurement or space limited scenarios, ensuring uniform clamping force to prevent sensor displacement. Figure: Typical installation structure of turbine flowmeter
2. Fl
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