Numerical value simulation-based ventilation duct smoke purification system

Abstract

The invention provides a numerical value simulation-based ventilation duct smoke purification system. The system comprises a ventilation duct, a dust collector, a fan and a smoke pipe, wherein the ventilation duct is prepared through a method comprising the following steps: 1) preliminarily designing the ventilation duct, establishing a geometric model according to the structural size of the ventilation duct, and carrying out grid division on a calculation area by utilizing software; 2) setting a pressure inlet boundary condition for dust absorption points of the ventilation duct and a pressure outlet boundary condition for an outlet of the ventilation duct, simulating the flowing of airflow in the ventilation duct by utilizing simulation software so as to obtain the simulated air volume of each dust absorption point, and obtaining an air volume deviation result between a designed air volume and the simulated air volumes; and 3) analyzing the result, adjusting the duct, and adjusting the air volume imbalance through adjusting the diameter of the duct or adding a throttling pipe. The system provided by the invention has the following technical effects of being conducive to saving the engineering commissioning cost, shortening the erection time, adjusting and improving the ventilation duct and improving the air volume balance of the ventilation duct.

Description

technical field [0001] The invention relates to a ventilation duct flue gas purification system based on numerical simulation, which belongs to the technical field of environmental protection equipment. Background technique [0002] Ventilation ducts are metal or non-metallic ducts used in ventilation and air-conditioning engineering of industrial and civil buildings. They are a municipal infrastructure for air circulation and reduction of harmful gas concentrations. Mainly used in industrial and construction projects, the application fields mainly involve: purification system of dust-free workshop in electronic industry, purification system of aseptic workshop of medicine and food, central air-conditioning system of hotel, shopping mall, hospital, factory and office building, dust removal for industrial pollution control, Smoke exhaust, oil suction and other exhaust pipes, air supply pipes for industrial environments or comfortable positions, gas drainage systems for coal m...

AI Technical Summary

Problems solved by technology

If the pressure is unbalanced, the air volume of the fan will be distributed according to the pressure of each branch pipe in the actual operation process, which will cause the air volume of some dust collection points to be too small to achieve the dust removal effect; The wind speed in some pipelines is too low, and the dust blocks the pipeline; the wind speed in some pipelines is too high, and the wear of the pipeline is aggravated