Improving the Efficiency of the Separation Process of Liquid Heterogeneous Systems
- PDF / 556,527 Bytes
- 7 Pages / 594 x 792 pts Page_size
- 0 Downloads / 175 Views
IMPROVING THE EFFICIENCY OF THE SEPARATION PROCESS OF LIQUID HETEROGENEOUS SYSTEMS M. Ya. Khabibullin
UDC 622.276.8 + 622.692.1
For efficient separation of liquid heterogeneous systems in oil and gas industry, various types of sedimentation tanks, separators, hydrocyclones, etc. are used, the principle of which is based on gravitational and centrifugal separation of heterogeneous masses of different densities. In order to ensure the best hydrodynamic conditions for the process of suspensions separation in a hydrocyclone and to prevent clogging of the discharge hole, an apparatus that contains only the cylindrical part of the housing is proposed. The presence of a taper displacer ensures the maintenance of optimal hydrodynamic conditions along the entire length of the apparatus, from the inlet to the discharge hole. The taper of the displacer affects the distribution profile of the tangential velocities of the fluid in the near-wall region, ensuring the constancy of the velocity profile along the radius and the specific flow rate over the cross section of the apparatus. Basing on the results of studies carried out on a real product (a mixture of PVCR with water) at a pressure and flow rate corresponding to the production ones, an industrial prototype of the apparatus has been designed and produced. Keywords: separation, plates, index, hole, pipe.
Improving the processes of high-quality and efficient separation of liquid heterogeneous systems is an urgent task of the industry. Sedimentation tanks, separators, hydrocyclones of various designs are used for separation, the operation principle of which is based on gravitational or centrifugal separation of heterogeneous masses of different densities. In fluid separators, the separation surface is formed by a stack of taper plates. The performance of the separators is characterized by the performance index [1]
∑Q =
2ω 2V , g
(1)
where ω is the rotational velocity of the separator rotor, min −1 ; V is the volume bounded by the working separation surface and the plane closing this volume, m 3 ; g is the acceleration of gravity, m/sec 2 . An increase in the ∑ Q value by increasing the dimensions (diameter and height) of the separator or
the number of plates leads to an unacceptable increase in the height of the rotor (hence, deterioration of the dynamic characteristics of the separator) and to an increase in the supply unevenness to the stack of plates over the height. The relationship between the diameters and the height of the rotors was established on the basis of many years of experience and supported by calculations to obtain the optimum dynamic characteristics of the separators. Branch of the Ufa State Petroleum Technical University, Oktyabrsky, Russia; e-mail: [email protected]. Translated from Khimicheskoe i Neftegazovoe Mashinostroenie, Vol. 56, No. 8, pp. 16−18, August, 2020.
626
0009-2355/20/0708-0626
© 2020
Springer Science+Business Media, LLC
IMPROVING THE EFFICIENCY OF THE SEPARATION PROCESS OF LIQUID HETEROGENEOUS SYSTEMS
627
Increasing the number of
Data Loading...
