汽包水位是影响锅炉安全运行的重要参数。
The important parameter of the boiler's drum water level can influence boiler's safety.
汽包水位是工业锅炉安全、稳定运行的重要指标。
Drum water level is an important index to ensure the safety and stable operation for industrial boilers.
锅炉汽包水位的控制一直是控制领域的一个典型问题。
The water level control for the steam drum is all along a typical issue in the control domain.
一种计算机应用技术领域的锅炉汽包水位模型辨识的方法。
The present invention relates to computer application technology, and is especially method of identifying boiler drum level model.
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.
工业锅炉汽包水位是确保锅炉安全生产和提供优质蒸汽的重要参数。
Boiler is to ensure the safe production and delivery of high quality steam important parameters.
文章介绍了一种已实际应用的电厂锅炉汽包水位三冲量串级控制方法。
This thesis explains a kind of three-element value cascade control method which is applied in the power plant to control the water level in the steam boiler.
文章主要讨论了锅炉汽包水位高低保护系统逻辑判断回路的自动切换。
The paper mainly discusses the automatic switching of the logic estimation circuit of the drum boiler's water level protection system.
随着机组容量的增大，对亚临界锅炉汽包水位控制提出了更高的要求。
With the increasing of unit capacity, higher requirements were proposed to control the circulation boiler drum level.
这些都相当危险，因此控制好汽包水位是保证锅炉正常运行的重要环节。
These are quite dangerous, so the drum water level control is necessary to ensure normal operation.
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.
再次，进行了基于自整定的汽包水位无自衡过程PPI反馈控制的设计。
Thirdly, the controller design of Non-self-Regulating Process PPI feedback on the basis of the self-tuning drum water level is introduced.
本文阐述了在亚临界机组中汽包水位的测量方法及控制设备应用的几点见解。
This paper elaborates some opinions about steam drum water lever measuring technique and application of control device in sub-critical units.
本文介绍了用单回路数字调节器实现锅炉汽包水位控制的方案及系统的组成方法。
This paper introduces a control scheme with single loop digital regulator for the boiler drum level control and describes the composition of the system.
文中较为详尽地分析了汽包水位对象的动态特性和传统的控制技术以及模糊控制理论。
The dynamic characteristics of steam drum water level along with its traditional control technology and the fuzzy control theory have been detailedly analyzed in this paper.
以实践为基础，对测量汽包水位中使用的双室平衡容器的工作原理与特性作了详细介绍。
On the basis of practicing, the operational principle and features of dual condensation chamber used for drum water level measurement are presented in detail.
首先介绍了火电厂热工锅炉汽包水位控制系统以及现阶段普遍采取的报警和故障检测方法。
At first, boiler water level control system and the mean of alarm and fault detection adopted universally are introduced.
目前，因锅炉汽包水位保护系统不可靠引起的事故屡有发生，造成较大的安全隐患和经济损失。
At present, accident caused by unreliability of drum water-level function system occurs from time to time, which leads to security risks and economic losses.
利用递推最小二乘法循环调整P ID参数，并将该控制器应用于锅炉汽包水位三冲量控制系统。
Recursive least square method was used to adjust the parameters of the PID controller, which was applied in three-element control system of boiler drum level.
汽包水位、蒸气温度、炉膛负压的控制采用模拟调节方式，其中汽包水位则选择了模糊PID调节。
The controls for drum water level, steam temperature, and negative furnace pressure are in analog control, among them, the drum water level control is under fuzzy PID control.
在分析常用锅炉汽包水位控制方式存在问题的基础上提出了双输入—单输出汽包水位模糊控制系统。
On the basis of analysis of conventional drum water level control mode for boiler and existing problems, a dual inputs single output fuzzy water level control system is stated.
介绍了利用计算机的软件功能，对介质的密度进行补偿计算，从而提高汽包水位测量精度的原理和方法。
This paper introduces a method of improving measure precision for water level in steam room which does the compensative calculating of medium density by computer.
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.
锅炉控制系统可以分为汽包水位控制系统、蒸汽压力控制系统、炉膛负压控制系统和燃烧经济控制系统。
Boiler control system is composed of drum water level control system, stem pressure control system, hearth negative pressure control system and combustion economical control system.
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.
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.
在此基础上，提出了用模糊-PID理论实现对汽包水位进行控制的方案，并进行了系统软、硬件的设计。
On this basis, put forward the theory of fuzzy-PID to the realization of drum water level control of the program, and the system software and hardware design.
分析了汽包水位信号的摄取方式，采用模拟信号的方式，对水位信号进行充分鉴别，使水位保护准确可靠。
How to get the drum water-level signal is analyzed. The analogue signal is used in this design. The water-level signal is fully determined and it makes the water-level protection exact and reliable.
汽包水位过高，会严重影响锅炉的正常工作，水沸腾过程中会使蒸汽带着水溢出，造成生产过程中的危险；
Drum can seriously affect the boiler works, water boiling will make the steam with water overflow, resulting in the production process;
汽包水位过高，会严重影响锅炉的正常工作，水沸腾过程中会使蒸汽带着水溢出，造成生产过程中的危险；
Drum can seriously affect the boiler works, water boiling will make the steam with water overflow, resulting in the production process;
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