What are the requirements for using orifice flowmeter?
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What are the requirements for using an orifice flow meter? Are there any restrictions on the direction of fluid flow? Also, are there any requirements for the length of the front and rear straight pipe sections?
GB/T 2624.2-2006 "Measurement of full pipe fluid flow using a differential pressure device installed in a circular cross-section pipe Part 2: Orifice plate" has detailed regulations
Generally, there is no requirement for the flow direction of horizontal pipes. The vertical pipes are from bottom to top. The requirements for straight pipes generally meet the requirements of the first ten and the last five D.
Installation requirements for orifice throttling device flow meters: A. The throttling device installation requires a straight pipe section of 10 times the first and 5 times the pipe diameter. ； B. The front end face of the throttling piece and its clamping flange should be perpendicular to the axis of the pipeline, and the opening and clamping flange of the throttling piece should be concentric with the pipeline. ； C. The sealing gasket clamping the throttling member must not protrude into the inner wall of the pipe, and the thickness of the gasket should not exceed the specified value. ； D. The newly installed piping system must be purged before the orifice plate can be installed. The acute angle of the orifice plate should face the flow direction. ； E. When measuring gas, the pressure port should be within a 45-degree angle between the upper part of the pipe and the vertical line in the pipe. ； When measuring steam, the pressure tap should be within a 45-degree angle between the upper part of the pipe and the horizontal centerline of the pipe. ； When measuring liquid, the pressure tapping port should be within a 45-degree angle between the lower part of the pipe and the horizontal centerline of the pipe. F. The horizontal pressure guide pipe for measuring gas (or liquid) should have a piping slope of 1 to exclude condensed liquid (or gas).: 10~1: 100.
It turns out that the orifice plate flow meter also has the requirement of 10 in the first and 5 in the last? study * Okay, what are the requirements for a vortex flowmeter?
It is necessary to take a good look at the principles and installation requirements of throttling device design. The problem of whether the orifice plate needs a straight pipe section can be easily solved.
It is necessary to take a good look at the principles and installation requirements of throttling device design. The problem of whether the orifice plate needs a straight pipe section can be easily solved.
What is the name of the book you are talking about?
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