某电厂脱硝装置流场测试及模拟优化试验

某电厂计划加装第3层催化剂,为提升机组SCR脱硝装置的运行性能,该电厂从流场和浓度场两方面对机组SCR脱硝装置进行综合治理.SCR脱硝装置内部流场进行了数值模拟,并结合内部流场冷态测试,通过模拟针对性优化改造方案.根据数值模拟发现加装预留层催化剂之后,首层催化剂入口截面上移至预留层上方,此时后墙侧烟气流速明显偏大,长期...

Flow Field Test and Simulation Optimization Test of Denitrification Unit In a Power Plant

A power plant plans to install 3 layers of catalyst,in order to improve the operation performance of the unit SCR denitrification unit,the power plant from the flow field and concentration field two aspects of the unit SCR denitrification unit comprehensive treatment.SCR numerical simulation of the internal flow field of the denitrification unit,combined with the cold state test of the internal flow field,the optimization scheme is modified by simulation.According to the numerical simulation,it is found that the inlet section of the first layer catalyst moves up to the top of the reserved layer after adding the reserved layer catalyst.Cold flow field test results show that the flow field is well distributed,but the flow field in the wall area of 1.5 m section above the upper layer catalyst is obviously larger.According to the numerical simulation results,the flow field of the catalyst layer is optimized to ensure that the flow field distribution of the inlet section of the catalyst layer is still uniform.