Introduction to bend flow meter scale design related practical bend throttling

Abstract: introduction to bend flow meter scale practical bend the throttling parts design information produced by excellent flow meter, flow meter manufacturer to offer you the quotation. At present a lot of bend flow meter manufacturer produces bend flow meter is also a standard geometric size of the 90 degree Angle, and the construction of the installation of throttling often directly to elbow installed directly in the appropriate space, but the flow measurement effect is not very. More flow meter manufacturers choose model price quote you are welcome to inquire, here is the introduction to bend flow meter scale practical bend throttling design relevant article details. At present a lot of bend flow meter manufacturer produces bend flow meter is also a standard geometric size of the 90 degree Angle, and the construction of the installation of throttling often directly to elbow installed directly in the appropriate space, but the flow measurement effect is not very satisfactory. Through the investigation and analysis of the project team, there are two kinds of fluid inside the pipe works, is a kind of free vortex theory, is a kind of forced vortex theory. When the liquid into the bend, forced to do similar circular motion, this & other; Forced to & throughout; Is the way of forced vortex theory. In order to understand the state of forced vortex bent pipe inside the distribution of velocity and pressure, the team check information, consult experts, zui later learned that the fluid had appeared before entering the bend close to the inside of the bend and bend the outside of the fluid in the subtle changes in the speed and pressure, with gradually into the bent pipe, the pressure changes exponentially, both close to the inside of the bend flow gradually increases slowly, and the pressure increases exponentially. Near the bend of the lateral velocity decreases, and the pressure is exponentially decreasing; When fluid into 45-degree bend geometry tangent plane, near the inner fluid velocity of zui, while the pressure is also big zui, on the contrary, the outside of the fluid velocity zui is small, while the pressure is zui small; When over 45 degrees of cross section, inverse came before changes such as cross section; After the fluid outflow curved pipe, the velocity gradient for a period of time, speed and pressure will return to steady state before entering the bend. Of careful analysis, it is concluded that fluid five times before entering the bend pipe bending diameter range, fluid velocity and pressure did not change, within five times the diameter has changed; Fluid flow outside the scope of double bend diameter of pipe bending, fluid velocity and pressure back to 5 times before entering the bend pipe bending diameter before physical state, 2 bent pipe diameter scope change is obvious. As a result, the diameter of the bend is D, then practical elbow flowmeter throttle should be: standard geometry size of 90 - degree bend straight pipe, elbow imports must have the 5 D straight pipe, elbow export must be 2 D, in 45 degree section of the medial and lateral has a hole. Will bend flow meter of the system design and flow parameters for production and manufacturing, to bend flow meter manufacturer installed after supervision department. Bending diameter ratio ( R / D) At zero. 95-1. 95 good. Above is all there is in this article, you are welcome to inquire me manufacturer flowmeter selection, quotation, etc.

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