Aniu Bar flowmeter| differential pressure flow meter

『Aniu Bar flowmeter』Related information(clamp on meter|electromagnetic meter|venturi meterrotameter|orifice meter|ultrasonic flow meter|mass flow meter|coriolis mass flow meter|coriolis flow meter|magnetic flow meter|magmeter flow meter|magflow flow meter|mag meter flow meter|electromagnetic flow meter|vortex flow meter|turbine flow meter|thermal mass flow meter|thermal flow meter|rotameter flow meter)

1. Which is more accurate, Anuba or Venturi flowmeter?

The medium you are measuring is carbon black exhaust gas, and there will definitely be carbon black particles inside. The vibration marks and holes of the A Jia Niu Ba are already small. Arent you using A Niu Ba to find blockages? My personal suggestion is to use a Venturi, as the hole is large, not easy to block, and the virtual pose is used for a long time. Its better to calculate than constantly changing to a cow! (That is, the low point of accuracy)

2. What is the difference between pressure measurement principle and flow measurement principle

Differential pressure flowmeter is a flow detection device composed of throttling elements and differential pressure transmitters. The throttling elements include orifice plates, Venturi tubes, etc. Take the orifice plate as an example. The orifice plate has a circular hole in the middle with a diameter smaller than the inner diameter of the pipeline. When the fluid passes through the orifice plate, the diameter of the orifice plate is smaller than the inner diameter of the pipeline, and the flow velocity of the fluid at the aperture of the orifice plate will increase (according to the continuity equation of the fluid family). At the same time, according to the Bernoulli equation, as the flow velocity of the fluid in the pipeline increases, its pressure will decrease. Therefore, a pressure difference is formed before and after the orifice plate, and the magnitude of this pressure difference is proportional (nonlinear) to the flow velocity of the fluid in the pipeline. Two different pressures are extracted through a pressure conduit and converted into electrical signals by a differential pressure tr

ansmitter. The same principle applies to the Venturi tube, but with some structural differences. The inner diameter at both ends of the Venturi tube is the same size as the inner diameter of the pipeline, and the inner diameter in the middle is smaller than that at both ends. This is also achieved by reducing the diameter of the fluid flowing through the middle of the Venturi tube, which accelerates the flow velocity and reduces its static pressure. Therefore, the differential pressure measurement of the Venturi tube is taken out at the inlet and middle of the Venturi tube, and the electrical signal is also converted by the differential pressure transmitter. For detection components such as Pitot tubes and Anuba tubes, they are somewhat different from orifice plates and Venturi tubes. They use two back-to-back tubes inserted into the center of the measured fluid pipeline, with the opening pointing towards the fluid direction as the positive pressure side and the opening facing away from the fluid direction as the negative pressure side. This is because when the fluid encounters obstacles on the flow path, a low-pressure vortex zone is formed on the back of the obstacle, and these two different pressure differences are used to measure the fluid flow rate. The most important thing for differential pressure flow meters is that all connecting pipelines must not have any leakage, because the pressure difference generated by the components that detect the fluid is very small, and any leakage will cause significant detection errors. At the same time, the extraction location of the pressure tube is also a crucial step for detecting different fluid objects. For gas fluids, the pressure tube should be removed from the upper 45 ° p

Aniu Bar flowmeter

1. Which is more accurate, Anuba or Venturi flowmeter?

2. What is the difference between pressure measurement principle and flow measurement principle

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