What should be noted when installing a V-cone flowmeter?

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1. What are the applicable working conditions for a V-cone flowmeter with a length of 700?

The applicable working conditions for a 700mm caliber V-cone flowmeter can be divided into two categories: general industrial working conditions and special working conditions. The core is to adapt to fluid measurement scenarios with high flow rate, high viscosity, and multiple impurities Universal family standard operating conditions - Measurement medium is clean liquid: such as clean water, thermal oil, softened water and other low impurity single-phase fluids, suitable for temperature range of -40 ℃~400 ℃, pressure up to 42MPa - Measurement of clean gas: including compressed air, natural gas, nitrogen and other gas media without particulate impurities - Measurement of saturated/superheated steam: steam operating conditions in accordance with GB/T 21446 standard, suitable for high flow rate steam measurement 2 Special adaptation conditions - High viscosity fluids: such as crude oil, asphalt, heavy oil and other media with a kinematic viscosity of up to 10000mPa · s, the V-cone cone cone structure can reduce fluid wall hanging and sedimentation - Impurity containing fluids: Sewage, mud, coal powder conveying fluids containing a small amount of solid particles (≤ 10% volume ratio), as well as industrial wastewater with a small amount of oil pollution - Large pipe diameter and wide range working bucket conditions: 700mm diameter, suitable for industrial main pipelines with an inner diameter of 650-750mm, with a range ratio of up to 10:1, can cover extremely low flow rates (minimum 0.1m/s) to ultra-high flow rates (maximum 10m/s for liquids and 100m/s for gases) scenarios - High temperature and high pressure conditions: Su

itable for high-temperature flue gas and high pressure in metallurgy and thermal power industries. Boiler feedwater measurement scenario 3 Not applicable to working conditions - fluids containing strong corrosiveness and no matching lining material, such as concentrated hydrochloric acid without anti-corrosion treatment - fluids containing a large amount of fiber impurities, such as white water from paper mills, are prone to entanglement before and after the cone, causing measurement deviation - working conditions where pulsating flow is extremely unstable and has no damping buffer, such as the direct connection pipeline at the outlet of a piston compressor

Which flow meter is accurate for measuring steam flow at 500 ℃

For measuring steam flow at 500 ℃, it is recommended to choose a V-type inner cone flow meter or ISA1932 nozzle flow meter first, depending on the type and working conditions of steam preparation. 1. Core dimension for flowmeter selection: ① Steam attribute differentiation: If it is saturated steam (temperature and pressure correspond to saturation point), ISA1932 nozzle flowmeter is recommended; If it is superheated steam (temperature and pressure exceeding the saturation point, such as in high temperature scenarios of 500 ℃), a V-shaped internal cone flowmeter should be selected. ② Reynolds number matching: The V-shaped inner cone requires Re ≥ 8 × 10 ⁴, the ISA1932 nozzle requires Re ≥ 2 × 10 ⁵, and the vortex flowmeter requires Re ≥ 2 × 10 ⁴. The Reynolds number of the pipeline needs to be calculated based on the actual flow rate. ③ Range ratio: The V-cone and vortex flowmeter have a range ratio of 10:1, while the ISA1932 nozzle has a range ratio of 4:1. Selection of high range ratio inst

1. What are the applicable working conditions for a V-cone flowmeter with a length of 700?

Which flow meter is accurate for measuring steam flow at 500 ℃

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