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『Selection of water flow meter』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)
1. What are the commonly used water flow meters?
There are several commonly used water flow meters, including electromagnetic flow meters, which have excellent characteristics such as corrosion resistance, anti-interference, and high precision. Display mode: divided into integrated and split types. Application areas: commonly used in fields such as sewage and tap water. Turbine flowmeter: alias: fire water flowmeter, turbine flowmeter. Characteristics: It has the advantages of high accuracy, good repeatability, compact and lightweight structure of the potato family. Measurement medium: According to different measurement media, it can be divided into two types of measuring instruments: gas and liquid. Application areas: Widely used for measuring media such as oil, natural gas, and coal gas, as well as for measuring water flow rate. Vortex flowmeter: Characteristics: Strong anti-interference performance, good stability and accuracy, large range, advanced circuit, low resistance loss, sturdy and durable. Measurement medium: It can be used to measure industrial pipeline media such as gases, vapors, and liquids. Design: It is an intelligent, standardized, and universal product that is carefully designed by integrating the drawbacks of digital chains and absorbing advanced technologies. These flow meters each have their own characteristics and applicable fields. According to specific application scenarios and requirements, suitable water flow meters can be selected for use.
2. What to pay attention to when selecting a flowmeter
1. Fluid characteristics mainly refer to the pressure and blockage, temperature, density, viscosity, compressibility, etc. of gas. As the volume of gas changes with temp
2、 Instrument performance refers to the accuracy, repeatability, linearity, range ratio, pressure loss, initial flow rate, output signal, and response time of the instrument. When selecting a flowmeter, careful analysis and comparison of the above indicators should be carried out to select an instrument that can meet the flow requirements of the measuring medium.
3、 The installation conditions refer to the flow direction of gas, the direction of the pipeline, the length and diameter of the upstream and downstream straight pipes, the spatial position, and the fittings, all of which will affect the accurate operation, maintenance, and service life of the gas flow meter.
4、 Economic factors refer to purchase costs, installation costs, maintenance costs, calibration costs, and spare parts, which are also affected by the performance, reliability, and lifespan of gas flow meters.
5、 The accuracy level and function of the instrument are selected based on measurement requirements and usage scenarios to achieve cost-effectiveness. For example, in situations such as trade settlement, product handover, and energy measurement. Additional information: As early as 1738, Swiss Daniel Bernoulli used the differential pressure method to measure water flow based on the first Bernoulli equation. Later, Italian G.B. Venturi studied the use of Venturi tubes to measure flow and published the research results in 1791. In 1886, American Herschel used a Venturi tube to create a practical measuring device for measuring water flow. In the early to mid-20th century, the original measurement principles gradually matured, and people no longer limit