Venturi is a funnel-shaped device that is produced by shaping an aluminum or iron sheet with pressure and tension. This device is placed in the upper entrance of the filter bag basket, which increases the volume of air during the pulse and also prevents the air pressure inside the basket from escaping, causing the basket and filter bag to work at their maximum.

The function of the venturi bag filter is to return part of the air into the filter when the air has entered the bag filter bags with speed and pressure, and in the absence of the aluminum venturi, all the available air will quickly return to the top after hitting the bottom of the bag, and all The air comes out, but despite the venturi, part of the air remains inside the filter.
Venturi Tube is one of the most important and widely used equipment in the industry, which has the task of measuring flow rate. In fluid mechanics, there are two types of flow rates, both of which can be measured by a venturi. The first type is mass flow rate and the second type is volumetric flow rate. In the following, we will introduce these two Dubais.

As you know, flow mass flow in simple words indicates the amount of fluid mass passing through a section of the pipe per unit of time, which is one of the important parameters. This parameter is obtained from the product of the density of the fluid in the cross-sectional area of the pipe and the velocity of the fluid. The following formula shows how to calculate the mass flow that can be measured by the venturi tube:

