1) primary air
一次风
1.
Improvement on measuring system on primary air flow of coal mill;
磨煤机一次风量测量系统改造
2.
Influence of reverse tangential mode of primary air on slagging and residual torsion and its numerical simulation;
一次风微反切对结渣和残余扭转的影响及其数值模拟
3.
Measuring techniques of primary air pulverized coal concentration in thermal power plants;
火电厂中一次风煤粉浓度测量技术分析
2) primary air pressure
一次风压
1.
As a result,the opening of inlet damper is so small that the primary air pressure is too high and some pressure energy depletes during throttling with too much power consumption in pulverizing system.
在中速磨煤机制粉系统运行中,普遍存在着靠磨煤机入口风量挡板调整磨煤机通风量的大小,使磨煤机入口风量挡板开度很小,造成一次风压过高,一次风机的部分压能损失在挡板节流上,浪费了制粉电耗,这是中速磨煤机制粉系统运行中的一个误区。
3) primary air ratio
一次风率
1.
The process of NO x formation is influenced by some factors,such as characteristics of fuel,surplus air ratio,primary air ratio,secondary air ratio,combustion temperature and so on,which is mainly discussed in this paper from the aspects of technology.
简要分析了燃料燃烧过程中NOx 的生成机理 ,从陶瓷工艺角度着重讨论了燃料特性、过剩空气系数、一次风率、二次风率、燃烧温度以及烟气停留时间等若干因素对NOx 生成的影
2.
In order to obtain optimum operation of boilers and then ensure timely ignition and completely burnout of pulverized coal, pulverized coal combustion processes in a 350MW boiler were numerically calculated under different primary air ratios and pulverized coal fineness.
为了达到锅炉的优化运行以保证煤粉气流及时着火和充分燃尽,采用IPSA两相流动模型和煤粉燃烧综合模型,在不同的一次风率和煤粉细度的工况下,对1台350MW锅炉煤粉燃烧过程进行了数值模拟,得出了炉内燃烧器区域以及出口处烟气温度场和燃烧产物的组分浓度分布。
5) primary fan
一次风机
1.
There are no existing design criteria for primary fan and blower volume and pressure head design margins.
华能玉环电厂是我国首台自主设计的1 000 MW超超临界机组工程,其一次风机和送风机风量和压头设计裕量没有现成的设计规范可遵循。
2.
At present,transduced primary fan was used widely in fossil-fuel power plant for energy saving.
针对火电机组一次风机节能损耗,变频调速运行中出现的问题,对一次风机变频调速RB功能实现的难点进行了分析和必要的完善。
3.
The failure of a single primary fan may cause the stoppage of the whole power generating set, but the addition of a ventilation door each in the cold and hot pipelines makes it possible for the single primary fan to run with the coal grinder while the whole power generating set is operating non-stop with considerable economic results.
１台一次风机发生事故时，整台机组需停止运行。
6) heat wind
热一次风
1.
The output of pulverizer is raised by measures of changing segregator structure,heat wind data and flux,steel ball proportion.
结合D-12-D型磨煤机的特点对磨煤机出力低的原因进行分析和探讨,通过改变分离器的结构、提高热一次风的参数和流量、改变钢球配比等措施,提高了磨煤机出力。
补充资料：一次风机
一次风机
primary air fan
y一e r fengJJ一次风机(primary air fan，PAF)供给锅炉燃料燃烧所需一次空气的风机。按其在系统中的安装位置，有冷一次风机和热一次风机之分。冷一次风机布置于空气预热器之前，从大气或从送风机出口冷风道抽吸空气，并提供所需能量，使空气通过预热器(通常为三分仓预热器)、中速磨正压直吹系统，并翰送煤粉经燃烧器进人炉膛燃烧;热一次风机布t于空气预热器之后，将预热器出口的高温空气送人制粉系统作为干燥剂，随后将煤粉经燃烧器输送人炉膛嫩烧。 通常一台锅炉配置两台一次风机。由于其压力较高，一般采用离心式风机。冷一次风机也有采用双级动叶调节轴流式风机的。热一次风机输送的是高温空气，轴承需要良好的冷却，机壳需要严密的密封。另外，空气经回转式预热器后，携带有一定的粉尘，其叶轮叶片应考虑选用耐磨材料。由于一次风在三分仓空气预热器中的漏风率远远高于整个预热器的漏风率，因此，在确定冷一次风机的风量时，一定要单独计算一次风在预热器中的实际漏风量。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条