Buy (625 RUB)
|Generate QR code
Open Access
Subscription or Fee Access
Determination of the Operational Mode of Bubble Blenders of Flows in Water Purification Technology
https://doi.org/10.18412/1816-0395-2015-2-60-62
Abstract
An approximate mathematical model is considered and the computational expression for the fluid circulation velocity over the layer height in a bubble apparatus
(concentration blender) is derived. The mathematical model is constructed using the pulse balance in a boundary layer of the gas-liquid medium and pulse transfer
coefficients. Pulse transfer coefficients are found applying the Prandtl and Levich models of the boundary layer. A criterion diameter of the particles is determined
for mixing the fluid with a dispersed phase, upon increasing which, the particles will precipitate on the mixer bottom. The found expressions make it possible
to select the operational mode of the apparatus, i.e., the velocity (flow rate) of air supply for mixing; they are applied to calculate industrial mixers at various
enterprises of the oil-and-gas chemistry complex and power engineering.
(concentration blender) is derived. The mathematical model is constructed using the pulse balance in a boundary layer of the gas-liquid medium and pulse transfer
coefficients. Pulse transfer coefficients are found applying the Prandtl and Levich models of the boundary layer. A criterion diameter of the particles is determined
for mixing the fluid with a dispersed phase, upon increasing which, the particles will precipitate on the mixer bottom. The found expressions make it possible
to select the operational mode of the apparatus, i.e., the velocity (flow rate) of air supply for mixing; they are applied to calculate industrial mixers at various
enterprises of the oil-and-gas chemistry complex and power engineering.
About the Authors
A.G. Laptev
Kazan State University of Power Engineering
Russian Federation
d-r tehn. nauk, professor
Russian Federation
d-r tehn. nauk, professor
E.A. Lapteva
Kazan State University of Power Engineering
Russian Federation
kand. tehn. nauk, docent
Russian Federation
kand. tehn. nauk, docent
References
1. Касаткин А.Г. Основные процессы и аппараты химической технологии: Учебник для вузов. М.: ООО ТИД "Альянс", 2005. С. 753.
2. Шакирова А.Х., Лаптева Е.А. Модель перемешивания жидкости в высокослойных барботажных аппаратах // Известия вузов. Проблемы энергетики. 2013. № 9-10. С. 129-132.
3. Лаптев А.Г. Модели пограничного слоя и расчет тепломассообменных процессов. Казань: Изд-во Казанск. ун-та, 2007. С. 500.
4. Лаптев А.Г., Фарахов Т.М. Математические модели переноса импульса в пограничном слое // Инженерно-физический журнал. 2013. Т. 86. № 3. С. 567-575.
5. Фарахов М.И., Лаптев А.Г. Энергоэффективное оборудование разделения и очистки веществ в химической технологии // Вестник Казанского технологического университета. 2011. № 9. С. 152-158.
6. Лаптев А.Г., Фарахов М.И., Башаров М.М. и др. Энерго- и ресурсосберегающие технологии и аппараты очистки жидкостей в нефтехимии и энергетике. Казань: Отечество, 2012. С. 410.
Review
For citations:
Laptev A., Lapteva E. Determination of the Operational Mode of Bubble Blenders of Flows in Water Purification Technology. Ecology and Industry of Russia. 2015;19(2):60-62. (In Russ.) https://doi.org/10.18412/1816-0395-2015-2-60-62
Views:
448
Email this article 