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1)  attempering water method
减温水法
1.
Both the Mark VI temperature matching method and the attempering water method are described,while their advantages,shortages as well as specific operating procedures presented.
介绍了Mark VI温度匹配法及减温水法2种滑参数停机的方法、优缺点和操作步骤。
2)  spray desuperheating
喷水减温
1.
In view of the feature and requirements of steam temperature control system of supercritical generation units, based on the analysis of temperature regulating theory, this paper discussed key points in design of the fuel water ratio(F/W) regulation and spray desuperheating control.
针对超临界机组汽温控制的特点和需求,在对汽温调整手段分析的基础上,论述了超临界机组汽温控制中的燃水比调整和喷水减温调节方案的设计要点,包括燃水比的动静态匹配、反馈信号的选取和使用、扰动补偿、燃水比调整与燃烧率控制的解耦,并介绍了负荷变化适应性强的新型喷水减温调节系统及燃水比与喷水减温调节之间的协调方式。
2.
Based on the thermal balance matrix equation for thermodynamic system and different sources of spray desuperheating water, mathematical models for the influence of spray desuperheating on thermal economy under conditions of constant power output were derived.
喷水减温系统是火电厂热力系统的重要组成部分,影响机组的热经济性。
3)  attempering water
减温水
1.
It is found out that the main causes are excessive attempering water,air leakage of the boiler system and scaling of heating surface.
对莱钢热电厂型钢锅炉车间130 t/h锅炉排烟温度偏高原因进行了认真分析,查明引起锅炉排烟温度高的主要原因是减温水用量过大、锅炉系统漏风和受热面结垢。
2.
In view of the main steam temperature control difficulty caused by type-choosing error of attempering water control valve for 410 t/h boiler in Guohua Shenmu Power Generating Co.
针对国华神木发电公司减温水调节阀选型错误导致主汽温度控制困难的问题,分析了调节阀结构、调节阀静态特性曲线、调节阀选型参数的确定方法等,重新确定了合理的减温水调节阀选型参数,使主汽温度控制难的问题得到了解决。
3.
The question of insufficiency of self-produced condensate,for superheater attemperation during operation,of a high pressure cogeneration set is being mentioned,pointing out the damage that may be caused to the boiler by frequent use of emergency attempering water.
提出了高压热电机组在生产实践中锅炉过热器减温用自制冷凝水不足的问题,指出长期投入事故减温水对锅炉的危害。
4)  de-superheating spray
喷水减温
1.
Taking introduced 300 MW generate sets for example,the effect on generating sets produced by super-heater and re-heater de-superheating spray is analyzed by utilizing the thermo-economy system state equations.
以引进型300MW机组为例,运用现行热力系统热经济性状态方程定量分析了过热器和再热器喷水减温系统对机组热经济性的影响,指出过热器喷水减温由给水泵出口分流时对机组的经济性影响不大,在实际中可广泛采用;再热器喷水减温对机组经济性的影响比过热器喷水减温的影响要大得多,使机组的实际循环热效率降低较多,运行时应尽量减少或避免采用。
2.
Taking the system of boiler pollution discharged and de-superheating spray as the research object,the article that bases on the structure and principium of the energy efficiency distribution matrix derives the models of quantitative analysis and calculation for the system of boiler pollution discharged and de-superheating spray.
以火电机组的锅炉排污和喷水减温系统为研究对象,在能效分布矩阵方程(EEDM)的主体结构和分析原理基础上,经过严格的理论分析和数学推演,分别导出了适合锅炉排污和喷水减温定量分析的计算模型,使能效分布矩阵方程的火电机组热经济分析方法更为完整和完善。
5)  desuperheating water
减温水
1.
Influence of reheater desuperheating water flow on economy of units;
再热减温水流量对机组经济性的影响分析
2.
The regulating valve for desuperheating water of No.
汉川电厂 3号炉减温水调节阀原为 ABB公司生产的 1 2 -83 5直通式减压调节阀 ,该型号阀门在运行中阀座多次出现环向裂纹并导致严重的内漏。
3.
Proceeding from the basic principle of liquid breakage the authors have proposed a physical model describing the formation of initial liquid drop following the spray of desuperheating water from a nozzle into a steam flow, secondary breakage and a vaporization following this.
从液体破碎的基本原理出发,提出了减温水自喷嘴(喷孔)喷入蒸汽流后初始液滴的形成、二次破碎及其后的汽化物理模型。
6)  attemperating water
减温水
1.
In 300 MW unit design,superheater attemperating water is generally araanged behind startup regulating bypass valve.
300 MW机组设计中,过热器减温水多布置在启动调节旁路门后,在机组启动初期由于过热器减温水和主蒸汽差压小,很容易造成过热器温升过快,甚至超温。
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