Today, I will introduce a national invention authorized patent-inclined hole differential pressure flowmeter. The patent was applied for by Micrometer Co., Ltd., and the authorization was announced on March 29, 2017.
Content descriptionThe invention relates to an inclined hole differential pressure flowmeter.
Background of the inventionFlow meters are important in many applications such as oil and gas pipeline flow monitoring. For economic and safety reasons, it is important to have accurate flow measurement. Usually a differential pressure flow meter is used. Differential pressure flow meters are based on Bernoulli's theorem and the law of conservation of mass of fluid flow between two points in the fluid, and can provide flow readings (mass or volume) expressed as a function of measured differential pressure and fluid density.
The differential pressure gauge measures the pressure drop generated using a differential pressure generator such as an obstruction introduced into the fluid flow or a contractor. The differential pressure gauge provides a flow rate calculated using a known flow equation. For its part, the differential pressure generator can be a retractor formed in the pipe or an obstacle inserted into the pipe. Examples of differential pressure meters include McCrometer WAFER CONE flow meters and McCrometer V CONE flow meters that operate with obstacles. VCONE and WAFER CONE are registered trademarks of McCrometer in the United States and other countries.
In order to measure the pressure difference within the pipeline, the pressure gauge connector or pressure hole is configured to be located upstream of the obstacle and at or near the obstacle to produce high pressure readings and low pressure readings. The pressure difference between the two pressure points is monitored and used for flow calculations. The standard DP meter flow equation is known.
Summary of the inventionAn aspect of the present invention provides a flow meter device, which includes: a fluid pipe with a differential pressure generator in the fluid pipe; a wall of the fluid pipe having an angle between 0 degrees and 90 degrees At least one pressure hole; and at least one additional pressure hole; wherein the at least one pressure hole and the at least one additional pressure hole provide a pressure signal.
Another aspect provides a flow metering device, the flow meter device comprising: a fluid pipe with an obstacle inside the fluid pipe; a first pressure hole, the first pressure hole is located in the fluid pipe downstream of the obstacle The second pressure hole, the second pressure hole is located in the wall of the fluid pipe at a position different from the position where the first pressure hole is located; and wherein the first pressure hole or the second pressure hole is The wall of the fluid pipe has an angle between 0 degrees and 90 degrees.
A further aspect provides a flow measurement method, the flow measurement method comprising the following steps: a differential pressure generator is provided in a fluid pipeline; at least one having an angle between 0 degrees and 90 degrees is provided in the wall of the fluid pipeline Pressure hole; and at least one additional pressure hole is provided; wherein the at least one pressure hole and the at least one additional pressure hole provide a pressure signal.
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