靜態(tài)管道混合器流場分布特性研究
[Abstract]:With the development of social economy, water resources are becoming increasingly scarce. Feed water dosing system is indispensable in the treatment of oil recovery wastewater in domestic oil field. However, at present, the mixing tank and mechanical mixing equipment with serious waste of water resources and low economic benefit are often used in our country, so the economic benefit of the research is high. A static mixer in line with sustainable development planning is essential. In this paper, the structure design of a new type of pipe mixer is determined by using the helical mixer, which is divided into two parts of left-handed and right-handed parts, and the flow field characteristics of the mixer are analyzed by using CFD software, and the mixer with different parameters is studied by simulation. The results show that with the increase of the number of blades, the flow resistance of mixer increases obviously, the mixing effect of blade torsion angle increases slightly, and the pressure drop is slightly increased. The blade length has little effect on the mixer mixing effect, so the blade length can be selected according to the field requirements, and the number of spiral blades, blade torsion angle, dosing mode and blade length of static mixer can be further optimized. Determine the mixer structure calculation, design and use a new type of portable sampler with double phase sleeve structure, establish a mixing effect detection and evaluation method of mixer, express the mixing effect of mixer through mixing degree. At the same time, it is proved that the new mixer has good mixing effect by measuring the concentration of polyacrylamide. The new screw mixer has the advantages of obvious mixing effect, low pressure drop loss, less energy consumption and effective utilization of water resources, so it has good social and economic value.
【學(xué)位授予單位】:青島科技大學(xué)
【學(xué)位級別】:碩士
【學(xué)位授予年份】:2015
【分類號】:TQ051.71
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