Duoqin Instrument Technology Classroom: Pressure Measurement Method of Orifice Flow Meter

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orifice plate flowmeterThe pressure collection method:

Orifice flow meters are widely used in industries such as petroleum, chemical, and power. Orifice flowmeter is a type of differential pressure generating device throttling instrument, which includes flange pressure measurement, corner connection pressure measurement, ring chamber pressure measurement, etc. The orifice plate throttling device can be used in conjunction with flow meters, pressure transmitters, differential pressure transmitters, and temperature transmitters to measure steam, gas, and liquid. Orifice flowmeter has high stability, strong seismic resistance, easy to replicate, simple and sturdy, stable and reliable performance, long service life, and low price. The calculation of orifice plates adopts international standards and processing. Orifice flow meters have a wide range of applications, and can measure all single-phase flows, as well as some mixed phase flows. The standard throttling device does not require real flow calibration and can be put into use.

When the fluid filled in the pipeline flows through the throttling device inside the pipeline, the flow beam will form a local contraction at the throttling element of the throttling device, thereby increasing the flow velocity and lowering the static pressure. As a result, a pressure drop, or pressure difference, is generated before and after the throttling element. The larger the flow rate of the medium, the greater the pressure difference generated before and after the throttling element. Therefore, orifice flow meters can measure the size of fluid flow by measuring the pressure difference. This measurement method is based on the laws of energy conservation and flow continuity.

The technical service team of Duoqin Instrument has been focusing on flow meters for nearly 20 years. We highly recommend various flow meters such as vortex flow meters, electromagnetic flow meters, steam flow meters, gas flow meters, elliptical gear flow meters, metal tube float flow meters, ultrasonic flow meters, etc., especially for flow GPRS mobile and PC data online monitoring and other technical services.