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Structure, material and use effect of tubular static mixer

Jun 20, 2018

Practice has proved that the tubular static mixer is very effective in the addition of various coagulants, coagulants, ozone, liquid chlorine, acid and alkali neutralization, and gas-water mixing in water supply and drainage and environmental protection projects. It has become The ideal equipment for realizing instant mixing of various agents in the water area has the characteristics of rapid and efficient mixing, simple structure, energy saving, compact size and so on.


In the absence of external power, the flow of water through the pipe static mixer will produce three functions: diversion, cross-mixing and counter-rotation, so that the added agent can be quickly and uniformly diffused into the entire body of water to achieve the purpose of instant mixing. The efficiency is as high as 90~95%, which can save about 20~30% of dosage, which is of great significance for improving water treatment effect and saving energy.


The material of tubular static mixer is mainly made of glass steel, carbon steel and stainless steel. The use of glass fiber reinforced plastic material has the advantages of convenient processing, sturdiness, durability and corrosion resistance. From the structural point of view, tubular static mixers are generally composed of pipelines, nozzles, vortex chambers, perforated plates, or shaped plates, which are used to promote mixing. Generally, three sections of pipelines are used together as a unit, with nozzles, eddy currents, and perforated plates. , Shaped plates, etc. are mixed.


The main body of the tubular static mixer is provided with a special spiral mixed monomer, and each two adjacent identical monomers at the beginning are cross-fixed in the pipeline in the opposite direction, and the monomer itself does not rotate during the operation. There is no rotating part in the device, but the kinetic energy of the water flow is used as the mixed energy.


When a fluid flows in a tubular static mixer, each monomer divides the flow of water into two, and the total number of flow splitters in the mixer gradually increases the number of monomers in a geometric progression; and because adjacent mixing monomers have opposite directions, When the water flow is continuously generated in the direction of swirling turbulence in the opposite direction, a vortex is generated at both ends of each monomer. This vortex and anti-vortex vortex enhances the mixing efficiency, and three kinds of mixing effects occur in the mixer, so that the body has The mass transfer rate is fast, and it can complete the effective mixing of different liquid media in the instant.