煤粉颗粒,pulverized coal particle
1)pulverized coal particle煤粉颗粒
1.The calculated results show that, under different time-averaged gas temperature, the instantaneous devolatilization rates ofpulverized coal particles with different diameters are all affected by the gas fluctuating temperature.研究了热气流中气相温度脉动对煤粉颗粒瞬时热解挥发速率的影响。
2.The effects of gas temperature fluctuation on the devolatilization ofpulverized coal particles with different diameters are explored under different time-averaged gas temperature.本文在不同的气相平均温度条件下,研究了气相温度脉动对不同粒径煤粉颗粒挥发分释放的影响。
3.In the presence of gas-phase temperature fluctuations,the transient release process of nitrogenous compound resulting from the pyrolysis ofpulverized coal particles was calculated.在有气相温度脉动的条件下,对煤粉颗粒热解中含氮化合物的瞬时释放过程进行了计算,计算中对氮化合物瞬时释放速率采用了官能团(FG-DVC)模型。
英文短句/例句
1.Research on the Technology of Powdered Coal Particle Measurement Based on Image Processing;基于图像处理的煤粉颗粒检测技术研究
2.Particle Measure of Coal Powder Based on Microobservation and Image Processing;基于显微观测及图像处理的煤粉颗粒检测
3.Study on the Non-Fourier Effect during Coal Particles Combustion;煤粉颗粒燃烧过程中的非傅立叶效应研究
4.Electrostatic Cross-correlation Measuring Method for Dense-phase Pneumatically Conveyed Coal Particle Velocity密相气力输送煤粉颗粒速度静电互相关测量方法
5.Influence of Gas-phase Temperature Fluctuations on the Release of Nitrogen Compound in the Pyrolysis of Pulverized Coal Particles气相温度脉动对煤粉颗粒热解氮化合物释放的影响
6.Effect on cement properties of particle characteristics of fly ash粉煤灰颗粒特性对其水泥性能的影响
7.MOTION TRAJECTORY SIMULATION OF A CHARGED PARTICLE OF PULVERIZED COAL IN THE CHARGING APPARATUS荷电器内煤粉荷电颗粒运动轨迹仿真
8.Influence of particle distribution on properties of fly ash cement with particles adjusted颗粒分布对粉煤灰调粒水泥强度的影响
9.A Research on Particle Constitution of Fly Ash and Pozzolanic Activity of Fly Ash Ground Traditionally粉煤灰的颗粒组成与磨细灰的火山灰活性
10.Experiment Studys on Aerated Concrete Fly Ash Particles Used to Bilolgical Aerated Filted;粉煤灰加气砼颗粒应用于曝气生物滤池试验
11.LCA of Thermal Insulation Material with Fly - ash and Polystyrene Particle;粉煤灰聚苯乙烯颗粒保温隔热材料LCA评价
12.A new type of green material-Fly Ash Particle Reinforced Al Matrix Composites新型绿色材料-粉煤灰颗粒增强铝基复合材料
13.Microstructure and Mechanical Properties of Fly-ash/Al-20%Si Composites粉煤灰颗粒增强铝基复合材料的组织与性能
14.Influence factors and mathematical model of coal dust particles threshold velocity煤炭粉尘颗粒起动风速影响因素及数学模型
15.THE PROGRESSIVE CHANGE OF PHOSPHOROUS IN PM_1 DURING COAL COMBUSTION煤粉燃烧过程磷在亚微米颗粒中的转化
16.The Effect of Particle Size Distribution of Fly Ash in the Autogenous Shrikage of Cement Mortar粉煤灰的颗粒分布对混凝土自收缩的影响
17.Coal slurries were found to exhibit a wide spectrum of flow behavior ranging from Newtonian at low concentrations to shear-thinning and pseudoplastic with a yield stress at higher concentrations.利用双峰级配理论，将粗颗粒煤粉加入细颗粒中可降低煤浆体系的黏度。
18.Particle Composition and Distribution in Cement with Large Volume of Fly Ash and Their Influences on the Mechanical Property颗粒组成和分布对大掺量粉煤灰水泥性能的影响
相关短句/例句
pulverized coal cloud煤粉颗粒团
3)coal particles field煤粉颗粒场
1.This paper simulated the flow field, temperature field,coal particles field and NO_ x field in a 330MW opposed firing boiler.分别对330MW对冲锅炉在额定负荷、55%额定负荷工况下的流场、温度场、煤粉颗粒场和NOx场进行了模拟研究,模拟结果与实际运行经验吻合较好。
4)pulverized-coal cloud煤粉颗粒群
1.This paper presents an model on heating up analysis ofpulverized-coal cloud heated by smoke convection and radiation.本文建立了在烟气对流加热和辐射状态下的煤粉颗粒群加热模型,通过数值模拟,模拟研究了不同锅炉炉膛尺寸下不同煤粉粒子粒径的煤粉群粒子加热时间以及粒子温升的关系,对对流换热和辐射换热在着火热源中所占比重进行了分析,模型很好的模拟了粒子的升温,能够较好的反映出煤粉粒子加热升温机理,为煤粉射流微元加热及着火提供了计算方法。
2.This paper presents a model on heating up analysis ofpulverized-coal cloud heated by the smoke convection and radiation correlated in the boilers.本文建立了在锅炉炉内烟气对流加热和辐射加热状态下的煤粉颗粒群非稳态着火模型。
5)fine powdered coal细颗粒煤粉
6)radiative properties of particles煤粉颗粒辐射
延伸阅读
低NO_x煤粉燃烧器低NO_x煤粉燃烧器low NO_x pulverized-coal burner(1 iN()[11、、一f、一、一:一、11:一，‘一i低NO二煤粉燃烧器(low NOJ pulverized一eoalburner)能降低和抑制NO，生成的煤粉燃烧器。低N认煤粉燃烧器通过特殊的结构设计，采用空气分级(见空气分级)、燃料分级(见二次燃料再燃烧)、浓淡燃烧和烟气再循环等技术措施，尽可能地降低燃烧区的氧浓度和火焰的峰值温度，减少在高温区的停留时间，抑制NO，的生成，或使已生成的NO，在下游区域还原成NZ。其中空气分级是应用最广.比较成熟的低NO，技术。现有电站锅炉上采用的低NO，燃烧器的结构型式很多，随着制造厂的不同而有较大的差异，但基本原理类同。双调风旋流燃烧器将二次风分成内二次风和外二次风两股气流，通过调风器和旋流叶片分别控制各NO，的生成，见图5。二次空气SGR一孟二次空气一次空气二次空气S口砚一二次空气图5 SGR燃烧器对于采用低NO，嫩烧器的锅炉，除燃用贫煤和无烟煤的以外，经过燃烧优化调整后，通常均可使NO，的排放量低于650 mg/m3(02=6%)(液态排渣锅炉NO，的排放量可能会比较高)。对于已有锅炉改用低NO二燃烧器时，因燃烧推迟而有可能会使效率降低一些。自的风量和旋流强度，以调节一、二次风的混合，使其在燃烧器出口附近的火焰根部形成缺氧富燃料区，使燃烧推迟，火焰温度降低，NO，的生成量减少，在下游形成富氧的燃尽区，保证燃料的完全燃烧，见图1。外二次风调风俗┌─┐ ┌────────┤川│ │l/沪.│ │ └────────┤ │┌─────────┤ ││一仁业班丛旦止罕生│ │└─────────┴─┘点火油枪次风+煤粉或烟气 图1双调风旋流燃烧器低NO，直流燃烧器将80%左右的燃烧空气送人主燃烧器，在主燃烧器区域形成缺氧富燃料的工况，降低火焰峰值温度，既减少NO二的生成，又有可能使已生成的NO，还原成氮分子(NZ).从而减少NO二的排放量。而在主燃烧器的顶部设置燃尽风OFA，将剩余的空气由此送人炉膛，使未完全燃烧产物燃尽.见图2。
