Method for determining optimal operation parameter of double-field coupling dewatering device

A dual-field coupling and dehydration device technology, which is applied in the fields of electric/magnetic dehydration/demulsification, mechanical dehydration/demulsification, chemical process analysis/design, etc., can solve the problems affecting the oil-water separation effect of the device, etc.

Active Publication Date: 2019-06-18
CHONGQING TECH & BUSINESS UNIV
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

The droplet size is directly related to the centrifugal force provided by the swirl field, which affects the oil-water separation effect of the device

Method used

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  • Method for determining optimal operation parameter of double-field coupling dewatering device
  • Method for determining optimal operation parameter of double-field coupling dewatering device
  • Method for determining optimal operation parameter of double-field coupling dewatering device

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Embodiment 1

[0114] like figure 1 as shown, figure 1 is a dual-field coupling dehydration device model, figure 1 A multi-physics coupling model of the dehydration device is given. The double-field coupling dehydration device includes an overflow pipe, an oil inlet, a swirl chamber, a large cone section, a small cone section, and an underflow pipe. The overflow pipe is connected to the power supply The positive pole, the surface of the swirl chamber is grounded as the negative pole, and a coaxial cylindrical electric field (red area in the figure) is formed in the swirl chamber. The emulsified droplets coalesce and increase under the action of the electric field, and realize rapid oil-water separation under the action of the swirl field. .

[0115] An overflow pipe and an oil inlet are arranged on the swirl chamber, and the oil inlet is arranged on the outer wall of the swirl chamber. Enter the swirl chamber at a certain speed, and can rotate and flow along the inner wall of the swirl ch...

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PUM

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Abstract

The invention discloses a method for determining an optimal operation parameter of a double-field coupling dewatering device. The effects of an eddy flow centrifugal field and a high-voltage electricfield are integrally considered. A calculating hydrodynamics method is utilized. A flow field control equation, an electric field control equation and a population balance equation are combined for constructing a dynamic coalescence model of emulsified oil liquid drops in a double-field coupling reinforcing function. The population balance equation is used for simulating the coalescence and fragmentation process of the emulsified oil liquid drops in the device, thereby calculating the liquid drop dimension distribution, average particle size and separating efficiency on the condition of different operation parameters, and determining the operation parameter when the coupling device realizes an optimal separating effect.

Description

technical field [0001] The invention relates to the technical field of waste oil treatment, in particular to a method for determining optimal operating parameters of a double-field coupling dehydration device. Background technique [0002] In the field of waste oil recycling, demulsification and dehydration of emulsified oil is a relatively common process. However, it is often difficult to effectively and quickly realize the demulsification and dehydration of emulsified oil by using a single process. The joint use of two or more demulsification processes or operating units can greatly improve the efficiency of demulsification and dehydration of emulsified oil, which is the development direction of demulsification and dehydration technology in the future. The double-field coupling dehydration device is based on the double-cone section and double-tangential inlet swirl centrifuge as the main body structure, and the high-voltage electrode is cleverly embedded. The overflow pip...

Claims

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Application Information

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IPC IPC(8): G16C20/10C10G33/02C10G33/06
Inventor 龚海峰张贤明李文龙彭烨
Owner CHONGQING TECH & BUSINESS UNIV
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