primary heating system

Sumitomo Metal Industries succeeded to develop Ultra Thick H-Beams of H400×400 series and H500×500 series from 250mm thickness slabs with one heating .

住友金属工业公司成功地开发了用一次加热250mm厚板坯轧制H400×400,H500×500系列超厚H型钢。

In order to analyze all the factors in the problem of power system restoration(PSR) from a whole aspect and optimize the restoration process,this paper summarizes all kinds of issues relevant to PSR,which consist of not only the feature of primary system,but also the operator organization and auxiliary service of monitoring and control system.

为全面分析影响电力系统恢复过程的因素,分别从调度和运行机构、二次监控系统和一次系统3方面阐述影响恢复的诸多因素,提出系统恢复过程的整体模型。

Through experimental and theoretical analysis after No4 boiler hot primary air bypass transformation proof,after uses the hot primary air bypass installment,the exit gas temperature was decreased above 1.

通过4#锅炉热一次风旁路系统改造后试验和理论分析证明,4#锅炉在采用热一次风旁路装置后,降低排烟温度1。