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Method for numerical analysis of flow field in bag-type dust collector

A bag dust collector and numerical analysis technology, applied in the direction of instruments, electrical digital data processing, special data processing applications, etc., can solve the problems of manpower, material resources, time waste, difficult to understand the air flow organization of the dust collector, single function, etc., to achieve The effect of reducing time and improving design efficiency and accuracy

Pending Publication Date: 2017-12-22
DATANG ENVIRONMENT IND GRP
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Problems solved by technology

However, the function of this experimental device is single. When using the model experiment method, only the gas velocity distribution of the inlet and outlet sections of several electric fields can be measured, and it is difficult to understand the overall air flow organization in the entire dust collector; moreover, using the model In the experimental method, the cost and time spent are relatively large, resulting in a waste of manpower, material resources and time

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  • Method for numerical analysis of flow field in bag-type dust collector
  • Method for numerical analysis of flow field in bag-type dust collector
  • Method for numerical analysis of flow field in bag-type dust collector

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Embodiment Construction

[0026] Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. This implementation case is carried out on the premise of this technical method. It should be understood that the implementation case is to illustrate the present invention, but the protection scope of the present invention is not limited to the following implementation case.

[0027] In the application process of the present invention, the parameters of airflow distribution are initially set, and the geometric model of numerical simulation is established by using these parameters, and a grid is generated. Then use the principle of numerical calculation to calculate, and the air velocity value at any point in the calculation area can be obtained. The prototype of the dust collector is divided into many small calculation areas (grids) by computer programming special grid division software, and the calculation area is divided into a series of non-overlapping...

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Abstract

A method for numerical analysis of a flow field in a bag-type dust collector comprises the steps that boundary conditions of the bag-type dust collector are selected; through gas-phase and solid-phase flowing inside the bag-type dust collector based on Fluent software, gas-phase and solid-phase flowing characteristics of smoke and flying ash particles in the bag-type dust collector are obtained; Fluent post-processing software is used to process numerical computation results; flow field evenness problems existing in the bag-type dust collector are analyzed; and gas-phase and solid-phase flow fields of the bag-type dust collector are analyzed through changing of shape, position and layout mode of an internal flow guide plate. In this way, design and optimization adjustment of the shape and layout mode of the flow guide plate in the bag-type dust collector can be guided more effectively.

Description

technical field [0001] The invention relates to a numerical analysis method for the flow field inside a bag filter, which belongs to the technical field of bag dust removal, and in particular to a digital analysis method capable of measuring and analyzing the airflow distribution inside the dust collector and the overall airflow organization inside the dust collector. Background technique [0002] With the rapid development of my country's power industry, the amount of pollutant emissions is increasing, and coal combustion has caused serious harm to the ecological environment. The capture rate of ultra-fine fly ash by electrostatic precipitators is low, and about 1% of fly ash enters In the atmosphere, such a part of fly ash is mainly composed of ultrafine particles with a particle size of less than 2.5 μm or even submicron, and the surface is enriched with trace heavy metal elements and organic pollutants, which is very harmful to human health and the ecological environment; ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
CPCG06F30/20
Inventor 蔡晶王刚李志同张军强
Owner DATANG ENVIRONMENT IND GRP
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