Venturi mixer with symmetrical inlet pipes at throat part

Abstract

The invention discloses a venturi mixer with symmetrical inlet pipes at a throat part. The venturi mixer comprises a mainstream venturi pipe flow-in pipeline, a mainstream venturi pipe tapered section, the mainstream venturi pipe throat part, a mainstream venturi pipe diffusion section and a mainstream venturi pipe flow-out pipeline, wherein the mainstream venturi pipe throat part is symmetrically provided with a first inlet pipe, a second inlet pipe, a third inlet pipe and a fourth inlet pipe which are oblique toward the mainstream venturi pipe diffusion section, are communicated with the mainstream venturi pipe throat part and are centrally provided with open pores in which an inlet fluid flows. Compared with a traditional single inlet mode, the mode disclosed by the invention has the advantages that the inlet fluid can be distributed more uniformly; a mainstream fluid flows through the throat part, and converges with the inlet fluid at the center of the throat part so as to form intense reverse opposite impact, so that the influence to a mixing effect of a boundary layer is reduced fully, the turbulent effect increases, the mixing effect of the mainstream fluid and the inlet fluid nearby the central line is improved, the mixing efficiency is improved effectively, and the using range of the venturi mixer is expanded.

Description

technical field [0001] The invention relates to a Venturi mixer, in particular to a Venturi mixer whose throat contains symmetrically distributed introduction pipes. Background technique [0002] As an important gas-liquid or liquid-liquid mixing device, the Venturi mixer is widely used in engineering practice. The common Venturi mixer is a classic Venturi tube with a throat opening, and the mainstream fluid is composed of a classic Venturi tube. The inlet fluid flows in through a single opening, and the inlet fluid is mixed with the mainstream fluid by using the pressure change of the two fluids. The existing Venturi mixer is composed of a mainstream Venturi tube and a single inlet tube. If If the flow rate of the mainstream fluid is too high or the flow rate is too large, the mainstream fluid near the centerline cannot fully mix with the incoming fluid, that is, the incoming fluid cannot flow into the mainstream fluid area near the centerline, which is prone to the problem...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the above-mentioned problems in the prior art, the object of the present invention is to provide a Venturi mixer with symmetrically distributed inlet pipes in the throat, which not only improves the mixing of the mainstream fluid and the inlet fluid near the center line, but also destroys the The boundary layer of the mixed fluid is improved, the flow field flow near the throat wall is improved, the influence of the boundary layer on the mixing effect is fully reduced, and the inhomogeneous mixing and The problem of low mixing efficiency, and makes the present invention applicable to a wider range of flow ratios of incoming fluid and mainstream fluid

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