A method and system for demulsifying waste oil emulsion with chaotic frequency pulse electric field

Abstract

The invention discloses a method and system for demulsifying a waste oil emulsion with a chaotic frequency pulse electric field. First, a frequency chaotic high-voltage pulse electric field with a constant amplitude and equal pulse width is generated by regulating the chaotic pulse frequency; the frequency in the frequency chaos includes the emulsion The resonant frequency of the drops, and then the frequency chaotic high-voltage pulsed electric field acts on the waste oil emulsion for demulsification and dehydration. The chaotic frequency pulse electric field demulsification method of waste oil emulsion provided by the present invention aims at the characteristics of pulse electric field demulsification and dehydration, and uses the method of constant amplitude and equal pulse width chaotic frequency electric field to make up for the inability of the commonly used constant pulse electric field to cover emulsification The disadvantage of the resonant frequency of droplets in oil, fixed amplitude and equal pulse width can avoid affecting the demulsification efficiency due to the uncertainty of electric field amplitude and pulse width, and the pulse rate is chaotic and adjustable and controllable. The resonant frequency is fully covered, giving full play to the maximum efficiency of electric field demulsification, and meeting the requirements of efficient demulsification and dehydration in the process of recycling industrial waste oil.

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...

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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

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