Research On The Boiler Induced-draft Fan Tack The Wind Forecast Model In The Power Plant

In the power plant, the fan is a large rotating equipment, its performance is directly related to the safety, economic operation of power plant. In order to ensure the safe operation and reliable and economic reasonable operation, the fan on the structure, performance and operation regulation also has put forward higher and newer requirements. According to statistics, many power plants are wind machine against the wind, and the safety of the power plant, economic operation caused a serious threat. Therefore, do a good job of fan" against the wind" prediction is the unit safety, economic operation is necessary to the power plant. This paper summarizes the fire blower of power plant boiler grabs wind forecasting model needed for the theoretical basis, including flue gas parameters (gas average temperature, average flow rate of flue gas and flue gas volume) calculation principle and flow resistance (transverse scour resistance force of tube bundle is the most important) calculation principle. Thermal power plant boiler blower tack mechanism and main affecting factors are analyzed. To establish a rushing wind region characteristic curve of fan (figure-eight) model. Boiler is set up the entire flue flow resistance calculation model, is established based on the consideration of perturbations in the flue total flow resistance model. Based on the Visual Basic6.0programming language Windows environment developed the wind guiding gun wind forecasting software, introduced the Visual Basic6.0characteristics and operating environment, and the software for the basic processes and introduced the main function. In order to foul and slag and booster fan effect as an example of the wind guiding gun wind phenomenon was simulated under different conditions, the wind guiding gun wind simulation results, and the simulation results are analysed, put forward to grab the new concept wind forecast threshold.