The tangentially fired utility boiler furnace is divided into several sections. The dynamic mathematical models for each section are presented. In the combustion zone, three dimensional model is used, while for the up...The tangentially fired utility boiler furnace is divided into several sections. The dynamic mathematical models for each section are presented. In the combustion zone, three dimensional model is used, while for the upper sections, lumped parameter model is used instead. With the combination of different models, we can get detailed distributions of gas velocity, temperature, chemical species, heat flux, etc. in the furnace, but with less CPU time. The radiation through the interfaces of each section is cons...展开更多
In combination with the related documents and actual experience in the project operation ,this paper analyzes the effect of limestone injection into furnace and desulfurization （LIFDS） on furnace slagging tendency, ...In combination with the related documents and actual experience in the project operation ,this paper analyzes the effect of limestone injection into furnace and desulfurization （LIFDS） on furnace slagging tendency, dust deposit speed of the heating surface, wearing, corrosion, boiler＇ s combustion conditions and combustion efficiency, secondary pollution, etc. Based on this situation, some countermeasures and suggestions were advanced so as to strengthen the boiler＇ s soot-blowing management, the operation of ash removal, supervision, inspection during the maintenance downtime, tracking management management. All these have a directive meaning to boilers＇ safety and analysis of boiler operation parameters, planned of coal quality and optimization of the operation and operation.展开更多
1.IntroductionCoal is listed in China’s energy policy as the predominant fuelto be used for thermal power generation.It includes nearly the wholespectrum of coals that China has,ranging from anthracite to browncoal.T...1.IntroductionCoal is listed in China’s energy policy as the predominant fuelto be used for thermal power generation.It includes nearly the wholespectrum of coals that China has,ranging from anthracite to browncoal.This poses a situation to China’s utility boiler manufacturers thattheir products have to cope with all kinds of coal available.China is now producing a full range of utility boilers with ca-pacities from 35 t/h through 2000 t/h.They have successfully burnedanthracities with volatile matter greater than 7% and low grade coalswith high moisture and high ash contents.They burn bituminouscoals and lignites with satisfactory efficacy.展开更多
文摘The tangentially fired utility boiler furnace is divided into several sections. The dynamic mathematical models for each section are presented. In the combustion zone, three dimensional model is used, while for the upper sections, lumped parameter model is used instead. With the combination of different models, we can get detailed distributions of gas velocity, temperature, chemical species, heat flux, etc. in the furnace, but with less CPU time. The radiation through the interfaces of each section is cons...
文摘In combination with the related documents and actual experience in the project operation ,this paper analyzes the effect of limestone injection into furnace and desulfurization （LIFDS） on furnace slagging tendency, dust deposit speed of the heating surface, wearing, corrosion, boiler＇ s combustion conditions and combustion efficiency, secondary pollution, etc. Based on this situation, some countermeasures and suggestions were advanced so as to strengthen the boiler＇ s soot-blowing management, the operation of ash removal, supervision, inspection during the maintenance downtime, tracking management management. All these have a directive meaning to boilers＇ safety and analysis of boiler operation parameters, planned of coal quality and optimization of the operation and operation.
文摘1.IntroductionCoal is listed in China’s energy policy as the predominant fuelto be used for thermal power generation.It includes nearly the wholespectrum of coals that China has,ranging from anthracite to browncoal.This poses a situation to China’s utility boiler manufacturers thattheir products have to cope with all kinds of coal available.China is now producing a full range of utility boilers with ca-pacities from 35 t/h through 2000 t/h.They have successfully burnedanthracities with volatile matter greater than 7% and low grade coalswith high moisture and high ash contents.They burn bituminouscoals and lignites with satisfactory efficacy.
