What is Venturi's tube?

Venturi tube is a tube or tube that uses temporary limitation or narrowing in its length to reduce pressure and increase the speed of fluid or gas passing through. This phenomenon of simultaneous pressure reduction and speed increase is known as a venturi effect and has a series of uses such as airflow measurement and pumping or atomizing secondary fluid. There are several types of Venturi tube profiles in general use, with a gradual change in profile is the most effective. If this happens, the pressure of the fluid in the narrowed area must be reduced to save energy. The tube involved is known as Venturi and the simultaneous increase in flow rate and pressure reduction as a venturi effect. Changes in pressure change this phenomenon are used to perform tasks such as air measurement and Fuel Flow in Aircraft Systems and calculating differential pressure in meteorology.

In addition, you can draw or sprayed withEKUNDARY Fluids use pressure drop in the narrowing of the venturi tube. If a second liquid is introduced into the limited area of ​​the Venturi tube, a partial vacuum created by the lower pressure draws it into the primary flow of the liquid, where both mixed. This reaction is used in paint syringes and airbruscs to stretch the paint into the compressed air stream, where it is atomized. The carburetor on the engine with internal combustion uses the same response to fuel suction into the air drawn into the engine. The perfume sprayer works in the same way by pulling the perfume out of the bottle and into the air stream from the atomizer bulb.

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Venturi pipes use several types of narrowing profiles in the range from fine, in the shape of an hourglass .NS for simple bulkheads with a small hole in the center. Since the efficiency of the Venturi effect relies on the maintenance of the initial energy of air flow after the entire constriction, dragging in this area should be maintained by a minimum. For this reason, the most effective Venturi tubes arewith gradual changes in the profile. The venturi tube will usually have an angle of the initial input cone approximately 30 degrees and the angle of the output of about five degrees. These gradual profile changes ensure minimal fluid flow and the best Venturi power.