Waste oil emulsion chaotic frequency pulsed electric field demulsification method and system

Abstract

The invention discloses a waste oil emulsion chaotic frequency pulsed electric field demulsification method and system. Firstly, a fixed-amplitude and equal-pulse-width frequency chaotic high-voltagepulsed electric field is generated by regulating and controlling the chaotic pulse frequency, the frequency in the frequency chaos comprises the resonant frequency of the emulsified liquid drops, andthen the frequency chaos high-voltage pulse electric field acts on the waste oil emulsified liquid for demulsification and dehydration. The invention provides the waste oil emulsion chaotic frequencypulsed electric field demulsification method. Aiming at the characteristics of demulsification and dehydration of a pulsed electric field, a fixed-amplitude and equal-pulse-width chaotic frequency electric field method is applied. The defect that a common constant pulse electric field cannot cover the resonant frequency of liquid drops in the emulsified oil is overcome, fixed amplitude and equal pulse width can avoid influence on demulsification efficiency due to uncertainty of electric field amplitude and pulse width, the pulse rate is chaotic, adjustable and controllable, full coverage of emulsion droplet electric field resonant frequency can be realized, the maximum efficiency of electric field demulsification is brought into play, and the requirement of efficient demulsification and dehydration in the industrial waste oil recycling process is met.

Description

technical field [0001] The invention relates to the technical field of waste oil treatment, in particular to a method and system for demulsifying a waste oil emulsion with a chaotic frequency pulse electric field. Background technique [0002] Lubricating oil plays the role of lubrication, shock absorption and cooling in equipment, and is known as the "blood" of modern industry. However, due to physical, chemical or human factors during the use of lubricating oil, most or all of them eventually become industrial waste oil. The world produces a large amount of industrial waste oil every year, most of which are incinerated and dumped. While posing a great threat to the ecological security of the atmosphere, water and soil, it also wastes a lot of oil resources. Due to the needs of national strategy, economic development and environmental protection, all countries attach great importance to the resource utilization and harmless disposal of industrial waste oil. [0003] Among...

AI Technical Summary

Problems solved by technology

However, the droplet size distribution in the waste oil emulsion has a large span and a multi-scale dynamic distribution. There are micron-sized droplets and millimeter-sized droplets, which leads to uncertain and inconsistent harmonic resonance frequencies of the droplets.

[0004] Therefore, the commonly used constant pulsed electric field cannot cover the resonant frequency of all droplets in the emulsified oil, which makes the demulsification effect "greatly reduced", making it difficult to maximize the effectiveness of the method

Images