The lej Venturiego cleverly utilizes the Venturi principle. When fluid flows through a narrow Venturi tube at high speed, its pressure decreases, generating a powerful suction force. During operation, it rapidly draws in various materials and efficiently mixes them with the liquid, acting like a superb mixing master. This evenly disperses the materials throughout the liquid, significantly improving mixing efficiency and quality, laying a solid foundation for subsequent operations.
Venturi hoppers do offer a number of advantages that make them popular drilling fluid mixing equipment:
1. simple structure
2. high feasibility
3. Safe and reliable performance
4. Easy to move
5. Quick mix
6. Mix evenly
7. Low energy consumption
Working Principle of a Venturi Hopper
After being ejected from the nozzle, the liquid passes through the mixing chamber and enters the shear tube. Material is introduced into the mixing chamber through the funnel and, driven by the fluid flow from the nozzle, enters the shear tube, where it is dispersed and mixed. The mixed liquid flows out of the shear tube and into the recirculation tank.
The shear tube is a hollow tube that gradually expands along a curved surface. Its primary function is to increase the shear force within the tube, enabling better dispersion of the materials and raising the pressure of the mixed liquid before it enters the recirculation tank.
The shear tube effectively utilizes the Bernoulli effect: “faster flow, lower pressure; slower flow, higher pressure.” In the mixing chamber, the liquid is ejected from the nozzle at high speed, and the pressure is low at this time; after the liquid enters the shear tube, the cross-section gradually increases, the speed decreases, and the pressure increases.
