Software Development For Thermodynamic Calculations Of Vacuum Furnace And Process Software Completion Of Coking Furnace

Chemical Engineering and TechnologySoftware development for thermodynamic calculations of vacuum furnace and Process Software Completion of coking furnace have been completed in the thesis with Visual Basic 6.0.Software development for thermodynamic calculations of vacuum furnace consists of the computation modules such as the combustion calculation, the firework tube calculation, the coil calculation and the flue gas resistance calculation. The software can get the key process parameters, such as the temperature of the gas out of the fire, exhaust gas temperature, the temperature of streams leaving coils, outlet temperature of the heated medium, the pressure drop of coil, etc. Compared with Excel software has good points: 1. It can calculate the three return-pipe, and along the the direction of gas flow pipes can be divided into four pipe and get the temperature distribution of smoke; 2. Software calculates a variety of coil types, including fluorescent tubes, internally ribbed tube and turbulator coil; 3. Dielectric properties data can be automatically calculated and reduce human error.In addition, process software of coking furnace has been Completed. In the case of given heat intensity of each tube, software can calculate process parameters, such as residence time, thermal conversion, flow and tube wall temperature. Using Monte Carlo methods, software completes programming terms for hot strength of pipe. Software calculates hot strength of pipe for slant furnace of the middle of piping , side piping of double-sided radiation coking furnace, new single-sided radiation furnace coking furnace and so on. Software studies the impact on the outside tube heat intensity distribution with middle combustion, side combustion and wall heat, and compared with CFX and box-tope furnace. The results show that in the three types of combustion, the lower part of tubes have larger heat intensities and the upper tubes have smaller heat intensities on the types of wall combustion. Programming calculation and CFX simulation have the same trend.