Gas Blowing Device Parametric Design And Flow Field Simulation Analysis Of Generator Internal

Our country power plant and industrial boiler with coal is given priority to and power coal quality partial low, coal quality variable and ash rising continuously, calorific value reduce, led directly to the boiler heating surface appear wear away, soot formation, slagging, corrosion and so on a series of problems. Contamination coking will reduce in the boiler heating surface heat transfer ability, make furnace outlet flue gas temperature rise accordingly, fly ash easy bonding in convection superheater and platen superheater, soot formation can make the economizer and air preheater congestion, the heat transfer deterioration, reduces the boiler operation efficiency. Gas shock wave sootblower with steam sootblower impact kinetic energy and sonic sootblower acoustic oscillation performance, and has the heat cleaning function, has been widely used in all kinds of coal fired boiler equipment.Based on Pro/E system development kit Pro/Toolkit and Visual C++6.0programming language as the foundation, created based on Pro/E secondary development of distributor parts parametric design module, through the parts model calls and parameter transfer method, completed the distributor parts parametric design, realized the friendly human-computer interaction interface. At the same time the gas blast blowing system in the important mechanical structure mixer, the fire resistance of a more optimized design.Shock wave generator is located in the blowing system line downstream, mixed gas accumulation and happen deflagration of the main space, this paper use the CFD computational fluid dynamics method of finite volume method, through the FLUENT software separation solver for generator in the standard model of flow field numerical simulation, the generator in mixed gas deflagration of the flow field distribution, obtained the generator in different position of the temperature, pressure and density change. The highest temperature inside the piping nearly1000℃, and generator materials and g melting point is1495℃, allowing the working temperature is only450℃. Therefore, can be in generator pipe wall using refractory lining or water to reduce the temperature.Shock wave soot blower structure modularization parametric, realize human-machine interaction, will greatly shorten the design cycle, reduce the workload and improve the design efficiency. For generator internal flow field numerical simulation results analysis, for designers to design the resistance to high temperature and pressure generator unit to provide a theoretical basis.