1) indirect air cooling
间接空冷,空气外冷
2) indirect air cooling
间接空冷
1.
After technical and economic comparison on electric pump,steam pump water cooling,steam pump indirect air cooling and steam pump direct air cooling,the four schemes of the allocation of the air cooling 600 MW unit,this paper considered that steam pump indirect air cooling was the economical scheme and coinciding China policy of energy saving and loss reducing.
通过对600MW空冷机组采用电泵、汽泵湿冷、汽泵间接空冷、汽泵直接空冷这4种方案进行详细的技术经济比较后,认为汽泵间接空冷方案最经济,且符合国家节能降耗政策。
2.
Through technical and economic comparisons, it is recommended that direct air cooling system should be given priority in regions with stable wind field; while in regions with disordered wind field or unable to ventilate for direct air cooling, indirect air cooling system has should be considered first.
通过对技术经济比较,建议在风场流态较稳定地区,优先采用直接空冷系统;在风场流态紊乱地区或场地布置对直接空冷通风不利时,优先采用间接空冷系统。
3.
Based on the layout of the power plant s main buildings and air cooling towers of a typical MW indirect air cooling sets,the flow and temperature fields of the cooling air were presented by CFD simulation.
以某6×1000 MW间接空冷电厂主要建筑物和空冷塔平面布局为例,通过CFD模拟,得到了冷却空气流场、温度场,分析了机组热负荷、环境气温、风速、风向对空冷散热器进口空气流速的影响。
3) indirect air-cooling
间接空冷
1.
The modified 200MW steam turbines and large-scale air-cooling turbines are put into production continuously,which provides technical preparation for modification of 200MW indirect air-cooling steam turbines.
改进型200MW汽轮机及大型空冷汽轮机的不断投产,为200MW间接空冷汽轮机改造提供了技术储备。
4) indirect air cooler
间接空气冷却器
6) indirect air-cooling tower
间接空冷塔
1.
This paper introduces the general situation of the indirect air-cooling tower, analyzes and probes into the engineering geological conditions, loads and design situation of the thermal power plant and the foundation treatment of the indirect air-cooling tower, and puts forward the best decision.
介绍了间接空冷塔的概况,对某电厂的工程地质条件、荷载及设计工况以及间接空冷塔的地基处理等进行了分析探讨,提出了最佳方案。
补充资料:空冷发电机的运行
空冷发电机的运行
operation of air-cooled generator
刀ledl组和!封闭:行冷l发电}封系互等一;损耗〔量范尸200£量范咬低,·些特l常在l功率!应由甲(即i进风,以免i升高L度愈;的品kongleng fodlon}一de yunxlng空冷发电机的运行(operation of air一cgenerator)空冷发电机的定子绕组、转子绍定子铁芯均采用空气冷却。冷却空气一般都采月循环系统,机内装有空气冷却器,对循环空气泛却。以前空气冷却方式只用于50 MW及以下白机。但由于空冷发电机不需要外部冷却系统和翻统,因此,具有造价低、运行可靠性高、维护简仁系列优点,再加之一些制造厂在绝缘系统和降作方面采用了一些新技术和新工艺,使其使用的毛围不断扩大,目前有的制造厂已生产和投运-MW空冷发电机,并认为在200 MW及以下的笔围内,空冷发电机可能成为发展方向之一。 由于空冷发电机的容量相对较小.电压相对因此作为带变动负荷或调峰机组使用时,会有一殊问题。 发电机作调峰机组使用,就不可避免地要经电压和功率因数变动情况下运行,发电机的输d和定子电流也需要作相应变动,允许变动的范日专门的温升试验确定. 50MW以下的空冷发电机一般都为表面冷外冷),因此进风温度对其绕组温升影响较大,翌温度高于额定值时.定子电流必须作相应的降低定子绕组过热。一般进风温度在35~55℃之间右1℃,定子电流较额定值降低1%一3%,进风接高,降低的百分数愈大。 由于空气内冷技术的应用,对机内冷却空左质提出了更高的要求,还对其湿度有要求:应超过50%;不超过50%,,除了原有的除尘方面的要乏①运行中的机内空气相对湿②为保证停机期间机内空气相对澳要求配备加热装里.
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