Integrated wedge flowmeter

Integrated wedge flowmeterIt is a differential pressure flow measuring instrument that can perform high-precision flow measurement in fluid conditions with high viscosity and low Reynolds number (Reynolds number>500 can be used); It has the advantage and irreplaceable role in flow measurement with low flow rate, small flow rate, and large pipe diameter.

The Xi'an Sanlian Measurement and Control Wedge Flow Sensor has the function of correcting parameters such as flow coefficient, nonlinear error, temperature change, density change, etc; The measurement accuracy can reach 0.5%; It can have on-site display and standard current signal (4~20mA DC) output, which can be conveniently used for automatic control systems or networked with computers for automatic adjustment and control of flow or other parameters

2、 Working principle

Wedge type flow sensors and flow meters, like other differential pressure flow instruments, are based on the Bernoulli equation for energy conversion in a closed pipeline and the continuity law of fluid flow: differential pressure and flow rate have an open square relationship, and by measuring differential pressure, the size of the fluid flow rate in the pipeline can be measured.

Main features

1. Good repeatability and high accuracy, the calibrated wedge flowmeter has an accuracy of 0.5 level.

2. It has self-cleaning ability and no stagnant area.

3. Wear resistant, long lifespan, and high reliability.

4. The pressure loss is smaller than that of the orifice plate.

5-type structure, on-site installation does not require the installation of pressure pipelines, and can be directly connected to the pipeline with threads or flanges. Construction is time-saving, labor-saving, and easy to maintain.

Installation requirements

The shortest straight pipe section on the upstream side of the wedge-shaped flowmeter is shown in the table below:

Wedge flowmeter is mainly used for flow measurement of high viscosity (heavy oil, residual oil, diesel, engine oil, etc.), industrial gas (coke oven gas, blast furnace gas, generator gas, city gas), hydrogen, nitrogen, air, steam, sewage liquid and other media. This flowmeter has a simple structure, no movable parts, is not easily worn by fluids, has stable and reliable working performance, and a long service life; Its measuring elements and pressure measuring device have a special structure, which does not cause stagnation or blockage when the fluid passes through, and has a small pressure loss. It is an ideal choice for high-precision flow measurement at low Reynolds numbers.

Wedge flowmeter manufacturer product introduction: Wedge flowmeter is a new type of flowmeter that has gradually become practical since the 1980s. Its detection component is a V-shaped wedge block (also known as a wedge throttling component), with its smooth top angle facing downwards, which is conducive to the smooth passage of liquids or viscous liquids containing suspended particles, and will not cause stagnation on the upstream side of the throttling component. Therefore, it is particularly suitable for measuring volumetric and mass flow rates in industries such as petroleum and chemical.