给水母管爆破时，运行炉水位下降。
本文着重探讨当给水调节伐门开度变化时，伐门特性以及管路传输迟延对锅炉汽包水位动态特性的影响。
This paper focuses on effects of the valve characteristics and the transfer pipe delay on dynamic performance for boiler drum level, under varying valve opening of the feed water control valve.
本系统能够有效克服给水过程中出现的各种问题，使锅炉汽包水位在给定的范围内，保证锅炉的安全运行。
This system can effectively eliminate water during the various problems, so that the boiler water level in a given range, to ensure the safe operation of the boiler.
该系统采用电动给水泵变速调节和调节阀共同完成水位控制。
The system employs the variable speed regulation of electrically driven feed pump and the regulator valve to fulfill the control of water level.
由被控对象的逆对象组成的局部反馈回路可以有效地克服给水扰动以及汽包水位的另一主要扰动——蒸汽流量的扰动。
Local feedback loop containing inverse model of controlled object is able to cancel feedwater disturbance and another important one, disturbance from steam flow.
大机组给水泵手动并泵操作复杂，易造成汽包水位大幅波动。
Procedure of manually combing large size unit's Feed water Pump is complex and easy to cause much change of drum level.
高负荷时通过改变给水泵转速改变给水量，用三冲量系统控制汽包水位。
At the high load condition, change the rotating speed of steam or electricity feed water pumps to ensure the water level of the drum.
加热蒸汽应通过最低水位下的喷洒器蒸汽管耙导入给水箱内储存的水里。
Heating steam shall be introduced into the water stored in the feed water tank through a rake of sparger steam pipes below the minimum water level.
并运用MATLAB仿真工具，针对锅炉水位和汽压调节对象仿真模型在不同的蒸汽负荷、不同给水量、不同燃油量和不同控制方式下的动、静态情况进行仿真研究。
The response was compared with that obtained through simulation realized by the use of MATLAB and the actual process on different steam flow, feed water flow, fuel flow and control method.
电站锅炉汽包水位间接地反映了锅炉负荷与给水平衡的关系。是电站发电机组运行的主要控制参数之一。
Water level of boiler drum in power station is one of the main control parameters for turbine-generator unit, which reflects the balance of boiler load and feed-water indirectly.
电站锅炉汽包水位间接地反映了锅炉负荷与给水平衡的关系。是电站发电机组运行的主要控制参数之一。
Water level of boiler drum in power station is one of the main control parameters for turbine-generator unit, which reflects the balance of boiler load and feed-water indirectly.
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