Meanwhile, the control of air flow, furnace negative pressure and primary air flow are introduced.
同时也介绍了送风量、炉膛负压和一次风量的控制。
Analyses the effects of variable flow operation of primary pump water systems based on the temperature difference control method on the operation of air conditioning systems.
分析了一级泵水系统采用温差控制法实现变流量运行对空调系统运行的影响。
In light of the operating condition, design principle, stress condition and the characteristic of air flow, the cause of fracture and mechanism of primary fan was studied and analyzed in this paper.
从风机叶片的运行工况、设计结构和受力状况以及气流流动的特点等方面，研究和分析了叶片产生断裂的原因和机理。
The variable primary flow system is compared with the traditional water system of air conditioning, and function and character of modular chillers are introduced.
对变主流系统与传统的空调水系统进行比较，介绍了模块化冷水机组的性能特点。
The effects of swirl number of primary swirler and radial swirler, area ratio and sleeve divergence angle on the cold flow field of double swirl air intake were investigated.
试验研究了主、径向涡流器旋流数、面积比、套筒扩张角等参数对双旋流进气装置冷态流场的影响。
The forms of primary flow pressurized direct connection of air conditioning system, operational principle and condition analysis are discussed.
主要论述了一次水加压直供空调水系统的形式、工作原理及工况分析；通过控制膜流状态确定溢流回水管管径；
The effects of the louver structure parameters, the feed concentration and the primary air velocity on the concentrated ratio (RC) were studied by the gas solid two-phase flow experiments.
通过气固两相流实验研究了浓缩比与百叶窗结构，给粉浓度及一次风速的定量关系。
Using recirculation flow to heat the primary air and increasing the concentration of pulverized coal in primary air really do good to boiler flame stability.
利用回流烟气加热一次风煤粉气流和提高一次风气流的煤粉浓度，都有利于锅炉燃烧的稳定。 开缝钝体燃烧器的设计综合考虑了回流加热和煤粉浓度局部富集。
The mixture of coal powder and primary air belongs to typical gas-solid two-phase flow, whose parameter is difficult to detect.
煤粉与一次风的混合物属于典型的气固两相流，其相关参数的检测难度很大。
FFU laminar flow unit is an air filtering and purifying unit with its own blower fan, it comprises of primary efficiency filter, blower fan, high efficiency filter and static pressure box.
FFU层流罩是一种自带风机的空气过滤净化单元，它由初效过滤器、风机、高效过滤器和静压箱组成。
The main contents of this paper were the studying of air-water medium corrugated plate heat exchanger flow resistance characteristics according to the principle of primary surface heat transfer.
本论文的主要内容是研究基于一次表面换热原理的空气一水介质波纹板式换热器的流动与传热特性。
The main contents of this paper were the studying of air-water medium corrugated plate heat exchanger flow resistance characteristics according to the principle of primary surface heat transfer.
本论文的主要内容是研究基于一次表面换热原理的空气一水介质波纹板式换热器的流动与传热特性。
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