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Method used for judging collision coagulation of charged particles

A particle collision and particle technology, applied in electrostatic separation, electrical digital data processing, special data processing applications, etc., can solve problems such as mechanism discrepancy, deviation from measured results, and collision theory discrepancy

Active Publication Date: 2016-10-12
西安宇清环境工程科技有限责任公司
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Problems solved by technology

[0010] It can be seen that the O'Rourke collision model has several deficiencies: first, the random collision probability method is used to judge whether the particles collide, which is inconsistent with the collision theory; second, the particle collision results also use random numbers as the judgment standard , which is inconsistent with the above-mentioned mechanism of charged particle coalescence
If the O’Rourke model is used to simulate and calculate the condensation phenomenon of charged particles, it will seriously deviate from the measured results, and super-large particles may appear

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  • Method used for judging collision coagulation of charged particles
  • Method used for judging collision coagulation of charged particles
  • Method used for judging collision coagulation of charged particles

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Embodiment Construction

[0050] The present invention will be further described in detail below in conjunction with specific embodiments, which are explanations of the present invention rather than limitations.

[0051] A method for judging the collisional condensation of charged particles, comprising the following operations:

[0052] 1) Construct a gas-solid two-phase flow model containing multiple random particles;

[0053] 2) Scan each particle in the entire model and obtain its position and size information, and assign a charge to the particles located in the charged area of ​​the electrocoagulation combiner, the particles located in the cathode area are positively charged, and the particles located in the anode area are negatively charged;

[0054] 3) Select the particle collision pair according to the selection conditions of the O’Rourke model, if the particle is in the set coagulation functional area, proceed to the next step, otherwise re-select the particle pair;

[0055] 4) Judging the cha...

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Abstract

The invention discloses a method used for judging collision coagulation of charged particles. A particle motion law is calculated by adopting a discrete particle model and used for judging the collision coagulation of the charged particles; and an adopted particle collision coagulation mechanism conforms to existing theoretical analysis, so that a coagulation phenomenon of the charged particles can be simulated truly, which has an important positive influence on particle coagulation research and engineering application. The coagulation effect of an electric coagulator on PM10 obtained according to a numerical simulation calculation result is the same as that obtained according to an actual measurement result, and the coagulation effects obtained according to the numerical simulation calculation result and the actual measurement result both reach more than 45%, so that the method for judging the collision coagulation of the charged particles conforms to an actual measurement law, and an efficient analytic means is provided for charged particle coagulation research.

Description

technical field [0001] The invention belongs to the technical field of analog calculation electrocoagulation, and in particular relates to a method for judging the collision coagulation of charged particles. Background technique [0002] At the beginning of the 20th century, people began to study the phenomenon of coagulation of fine particles. However, it was not until the end of the last century that the study of aerosol science began to discuss the condensation behavior of charged particles under the action of an external electric field force. The development of electrostatic condensation and purification technology provides an effective way to collect submicron particles in industrial flue gas. Scholars have used the method of electrocoagulation to carry out a large number of theoretical and experimental researches on the pre-charged electrocoagulation of dust particles, and have carried out industrial applications. [0003] The electrocoagulation combiner is an emergi...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50B03C3/34
CPCB03C3/34G06F30/367
Inventor 张玉海何剑徐国胜
Owner 西安宇清环境工程科技有限责任公司
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