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1·The once-through boiler of large capacity and high parameters is a very complex unit to be controlled.

大容量高参数的直流锅炉单元机组是一个十分复杂的调节对象。

2·The types and design principles of once-through boiler startup system and steam turbine by-pass system are expounded.

阐述了直流锅炉启动系统与汽轮机旁路系统的型式及设计原则。

3·Since once-through boiler has only a small heat storage capacity, its primary frequency regulation capability is limited.

直流炉由于蓄热能力小，使其一次调频能力受到限制。

4·According to the running features of supercritical once-through boiler, the article proposes a neural network decoupling control method.

本文针对超临界直流锅炉运行特性，提出了一种神经网络解耦控制方法。

5·A mathematical model is developed for the system made up of the furnace and its heating surfaces of an once-through boiler in the paper.

本文对直流锅炉炉膛及其受热面组成的系统建立了数学模型。

6·On this base, the feasibility of applying vertical tube coils to 600mw supercritical sliding pressure once-through boiler is demonstrated.

在此基础上，论证了600 MW超临界压力变压运行直流锅炉采用垂直管圈的可行性。

7·According to the running features of ultra supercritical once-through boiler, the article proposes a multivariable decoupling and internal model control method.

本文针对超超临界直流锅炉运行特性，提出了一种多变量解耦内模控制方法。

8·The dynamic characters and control system for 600 MW supercritical pressure once-through boiler equipped with internal start-up control are relatively complicated.

采用内置式启动控制的600 MW超临界压力螺旋管圈型直流锅炉，其作为被控对象的动态特性及控制系统都较复杂。

9·The practical experience shows that in the light of steam purging for supercritical once-through boiler, the superheater and reheater disturbance coefficients can reach 1.0 and 1.6 respectively.

利用减温水控制过热器和再热器出口温度以防止超过材料温限。实践证明，对超临界直流锅炉采用投粉稳压冲管过热器、再热器冲管系数可达1.0和1.6以上，效果良好。

10·This article introduces the purpose, method and procedure of HF acid chemical clean for once through boiler, and comparison between chemical clean of different mediums is presented as well.

重点介绍直流锅炉氢氟酸酸洗的目的，方法及过程，还对不同介质的化学清洗进行了比较。