Three-dimensional electric field solving method suitable for barb-plate electrode structure
A technology of three-dimensional electric field and plate electrode, which is applied in the direction of electrical digital data processing, special data processing applications, instruments, etc., and can solve problems such as deviation
Active Publication Date: 2019-11-26
TIANJIN SINO PEAK CONTAINER MFG
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Problems solved by technology
Its disadvantage is that the interaction between electric field strength and space charge is isolated, and it is simply considered to be superposition, so there is a slight deviation from the actual situation
However, the complexity of 3D modeling has led many previous studies to simplify it to 2D for theoretical and numerical analysis, which will lead to large deviations from the actual results.
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[0025] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0026] As shown in the accompanying drawings, a method for solving potential and charge density applicable to the three-dimensional electric field of the burr-plate electrode structure of the present invention comprises the following steps:
[0027] Step one, will figure 1 Each zigzag tip of the corona wire in the shown prickly corona wire structure is simplified as figure 2 The point corona electrodes on the corona line shown, each point corona electrode discharges to the surroundings, and the influence area of a single point corona electrode is a regular cube with the point corona electrode H as the center.
[0028] The reason why the tip of the burr is simplified as a point corona electrode is because the shape of the burr is very different, but they all discharge to the space through the tip of the burr, so the tip of the burr is simp...
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The invention discloses a three-dimensional electric field solving method suitable for a barb-plate electrode structure, and the method comprises the following steps: (1) simplifying a barb tip into an ideal geometric model according to the characteristic that the barb tip discharges to the space; establishing a space coordinate system by taking the center of the point corona electrode as an origin of coordinates, and selecting one quadrant as a calculation area of a single point corona electrode; representing a three-dimensional distribution electric field generated by a single point corona electrode by adopting a potential Poisson equation and a current continuity equation in a three-dimensional form between dust collection polar plates; differentiating the potential Poisson equation andthe current continuity equation between the dust collection polar plates by using a finite difference method to obtain a potential and space charge density expression of any point; taking the electric field intensity of each boundary in the calculation area and the electric potential and the charge density of the corona electrode as boundary conditions, and solving by adopting an iterative method. The method is practical and effective, and a basis is provided for system analysis of the performance of the electric precipitator and structural optimization design.
Description
technical field [0001] The invention relates to the field of electrostatic dust removal, in particular to a three-dimensional electric field solution method suitable for a prickly-plate electrode structure. Background technique [0002] The corona wire is the core component that causes gas ionization and electric field effect in the electrostatic precipitator, and it has various forms. The burr corona wire is a common form of corona wire, which relies on the sawtooth-shaped tip to discharge around. [0003] There are currently two ways to numerically calculate the electric field distribution during the corona discharge of the electrostatic precipitator. One is to regard the electric field generated by the corona discharge as the superposition of the electrostatic field and the space charge electric field. The advantage of using this method for calculation is the fast convergence speed, so many scholars at home and abroad still use it so far. Its disadvantage is that the in...
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IPC IPC(8): G06F17/50
CPCY02E60/00
Inventor 张梅生王烨
Owner TIANJIN SINO PEAK CONTAINER MFG