Three-phase vortex street current sharing method and device

Abstract

The invention discloses a three-phase vortex street current sharing device which comprises front-end flow guide boards and three-phase vortex street current sharing baffles. The windward faces of the three-phase vortex street current sharing baffles are each of a streamline body structure. The leeward faces of the three-phase vortex street current sharing baffles are each of a bluff body structure. The front-end flow guide boards are connected with the streamline body structure ends of the three-phase vortex street current sharing baffles which can be used for achieving the increased vortex street current sharing effect in a corner or a gradually-expanding pipeline or a suddenly-expanding pipeline. The windward faces of the three-phase vortex street current sharing device are each of the streamline body structure, resistance in the gas, liquid and solid three-phase movement processes is fully reduced, the pressure drop and the energy consumption of a system are reduced, and operation cost is reduced; the leeward faces are each of the bluff body structure, so that when gas, liquid drops and particles flow through bluff bodies, two-way vortex streets are generated behind the bluff bodies, the flow field turbulence behind the current sharing baffles is improved, and the three phases are more evenly mixed through transverse conveyance of the vortex streets.

Description

Technical field [0001] The invention relates to a three-phase vortex street current equalization method and a device thereof, and belongs to the technical field of fluid flow. Background technique [0002] In the pipeline of industrial equipment, the reverse change of the pipe section and the change of the pipe direction will cause the fluid movement direction to change, which will cause the liquid phase or solid particle phase carried by the fluid to separate, and finally make the fluid flow through sharp bends, divergent pipes or sudden changes. The uneven cross-sectional velocity / concentration distribution after pipe expansion further affects the working efficiency of subsequent equipment such as mixing, transfer, and reaction. If the fluid flows through the entrance elbow section, divergent section or sudden expansion section, the use of a properly designed flow equalizing device can greatly avoid these adverse effects, maintain the air flow pattern, and make the air flow vel...

AI Technical Summary

Problems solved by technology

However, all the above technologies have shortcomings. First, the delta wing technology itself utilizes blunt body structures on both the windward and leeward sides. It can be said that the current equalization is achieved on the premise of sacrificing the system resistance, which greatly increases the operating cost of the system

In addition, the delta wing flow equalization in the SCR system mainly focuses on the multiphase mixing of the external fluid and the fluid in the pipeline. However, if the fluid inside the pipeline itself is a multiphase fluid, how to achieve multiphase without the forced mixing of the external fluid? Phase average current is not mentioned

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