1) 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。
2) primary air pressure
一次风压力
1.
According to the primary air pressure characteristics of the boiler with coal powder conveyed by vent air, and on the basis of synthesizing the advantages of fuzzy controller and PID controller,a Fuzzy?PID control system is proposed,which can effectively control the primary air pressure.
针对乏气送粉的锅炉一次风压力的对象特点 ,在综合模糊 (Fuzzy)控制器与PID控制器优点的基础上 ,提出了一种适用于控制锅炉一次风压力的Fuzzy PID复合控制系统。
2.
This paper introduces control strategy of primary air pressure for 600 MW supercritical thermal power unit in Zhejiang Yueqing plant,analyzes the control process in various conditions,and optimizes the control strategy for the actual problems in special working conditions,such as starting or stopping mill normally,all kinds of RB.
对浙能乐清电厂600 MW超临界燃煤机组一次风压力控制策略进行了优化和调整。
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：风压
风压
wind pressure
蒲福风力等级表牛 注:13~17级风力是当风速可以仪器测定时用之。fengya风压(windp找，sure)风吹过障碍物时，在垂直于风速方向上单位面积上所受到的压力。对于障碍物来说，风压是两部分作用之和:一是迎风面的“动压强”(告，2)，二是背风侧的“吸压强”(告、”。将这两部分综合起来，可求得风压的公式: ，二合‘l+c，，’式中p为风压;P为空气密度;。为风速;c为结构系数。结构系数因障碍物形状而异，平板的C值为l，圆柱形障碍物为一0.3。上式中(l+C)plZ通常称为风速系数，主要取决于结构系数和空气密度。常用的风压系数通常不考虑结构系数的作用，即为阿2，在标准大气条件下，它等于1/16。由于空气密度是气温、气压和湿度的函数，各地的风压系数变化较大。在中国，沿海地区大致为1117，内陆为ljl6，青藏高原1118~1/26。对于迎风侧不是平面的障碍物而言，因为有复杂的流体动力因素参与，实际风压与上式算出的风压有较大出人。(李世奎)
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