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superheater
相关语句
  过热器
    PROBLEM OF BOILER SUPERHEATER OVERHEATING
    锅炉过热器的超温问题
短句来源
    Calculation of the Flow Deviation in the Complex Superheater Connection Systems
    复杂过热器连接系统流量偏差的计算
短句来源
    Steam Temperature Control of the Primary Superheater of a 1000 t/h Once-through Boiler
    1000吨/时燃煤直流锅炉低温过热器汽温控制的若干问题
短句来源
    Temperature Imbalances in Convection Superheater and Reheater Panels of Utility Boilers
    电站锅炉对流过热器和再热器的同片热偏差
短句来源
    Safety on Superheater and Reheater in Utility Boilers
    当前电站锅炉过热器和再热器的安全问题
短句来源
更多       
  过热器
    PROBLEM OF BOILER SUPERHEATER OVERHEATING
    锅炉过热器的超温问题
短句来源
    Calculation of the Flow Deviation in the Complex Superheater Connection Systems
    复杂过热器连接系统流量偏差的计算
短句来源
    Steam Temperature Control of the Primary Superheater of a 1000 t/h Once-through Boiler
    1000吨/时燃煤直流锅炉低温过热器汽温控制的若干问题
短句来源
    Temperature Imbalances in Convection Superheater and Reheater Panels of Utility Boilers
    电站锅炉对流过热器和再热器的同片热偏差
短句来源
    Safety on Superheater and Reheater in Utility Boilers
    当前电站锅炉过热器和再热器的安全问题
短句来源
更多       
  “superheater”译为未确定词的双语例句
    Integrated Calculation Method of Dyuamic/Static Characteristics of Botler Superheater System
    锅炉过热系统动、静态特性一体化计算方法
短句来源
    Analysis on Broken Causes and Modification for High-temperature Superheater,Header,Live Steam Pipe of USSR-made 200 MW Boiler
    苏制200MW锅炉高过及部分主汽管爆裂原因分析及改造
短句来源
    Use INFI-90 Smith controller control superheater steam temperature
    INFI-90Smith预估器对过热汽温的控制
短句来源
    Analyzing for Welded Joint Fracture on Sealing Structure of Reheater through Penthouse Superheater in 1025t/h Boiler
    1025t/h锅炉再热器穿顶密封结构焊口开裂原因分析
短句来源
    DYNAMIC MODELING STUDY OF SUPERHEATER STEAM TEMPERATURE BASED ON PRINCIPAL COMPONENT ANALYSIS METHOD AND ONLINE DATA
    基于主元分析与现场数据的过热汽温动态建模研究
短句来源
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  superheater
One concrete example (i.e., the development of a new alloy for superheater tubing in advanced coal-firedpower plants), is presented illustrating the capabilities of the current modeling software.
      
The uncoated and coated steels were inserted in the platen superheater zone of a coal fired boiler at around 755°C for 10 cycles, each 100 h.
      
These steels are widely used in reformer furnaces and as superheater tubes.
      
Correlation between molten vanadium salts and the structural degradation of HK-type steel superheater tubes
      
Exposure studies have been performed in the platen superheater zone of a coal-fired boiler at around 755 °C for 10 cycles, each of 100 h duration.
      
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The method of turbine regulation has to be considered in the design of steam boiler reheater.From the point of economy,it may not be necessory to control the reheat steam temperature,but for the sake of sabety,it has to be controlled within limits. The variation of reheat steam temperature,at different boiler load,is con- cerned with the percentage of direct radiating heat,absorbed by the reheater from the furnace. The reheat steam temperature changes sensibly by the voriation of flame position in furnce,so...

The method of turbine regulation has to be considered in the design of steam boiler reheater.From the point of economy,it may not be necessory to control the reheat steam temperature,but for the sake of sabety,it has to be controlled within limits. The variation of reheat steam temperature,at different boiler load,is con- cerned with the percentage of direct radiating heat,absorbed by the reheater from the furnace. The reheat steam temperature changes sensibly by the voriation of flame position in furnce,so it is good for conditional regulation.Gas recirculation is the most popular method for reheat control,the omount of recirculing gas is concerned with the location of the reheater in the gas passages.However,the flue gas heat loss of the boiler set will be increased when the gas recirculation is opplied.For reheat control,the method of steam by-pass will not affect the high pressure steam temperature,but the omount of high alloy steel for the ma- nufacture of reheater is much more increased.When using gas damper for regu- lation,if a part of the primary superheater heating surface is placed in poralld with the reheater,the reheat control will increase the difficulty for the control of primary steam temperature. In practice,each control method requires certain feasible condition for its opplication ond also has limit of temperature controlling range.

中间过热器的设计与汽轮机的调节方法有关。从经济方面看来,对二次汽温不一定要进行调节;但从工作安全方面来看,这种调节是必要的。在不同负荷下,二次汽温的变化同中间过热吸收炉膛辐射热的百分量有关。用喷燃器倾角调节时,二次汽温的变动最灵敏,因而适于作动态调节。烟气再循环是最常用的调节方法,所需再循环烟量同中间过热器所处的烟温地带有关。烟气再循环会增大锅炉机组的排烟热损失。蒸汽旁路的调节方法不影响一次汽温,但中间过热器所需金属用量增多。当用烟气挡板调节时,如一次和二次过热器并例工作,则二次汽温的调节将增大一次汽温调节的困难。实际上每种调节方法均有一定的适用条件和调节幅度的限制。

In this article the method of calculation of flow deviation in the complex superheater connection systems frequently used in conventional large capacity utility boilers is given. The said complex systems include: (1 )the superheater arrangement in which the entire superheater system is divided into two paths and the superheated steam leaves at one end of the main header of the two paths, and ( 2 ) those in which the method of lead-in and lead-out of the superheater tube banks does not...

In this article the method of calculation of flow deviation in the complex superheater connection systems frequently used in conventional large capacity utility boilers is given. The said complex systems include: (1 )the superheater arrangement in which the entire superheater system is divided into two paths and the superheated steam leaves at one end of the main header of the two paths, and ( 2 ) those in which the method of lead-in and lead-out of the superheater tube banks does not belong to the typical "Z", "U" or "L" arrangement, but instead several steam leads are arranged for lead-in and lead-out at the middle of the headers. Finally a simplified nornogram for the calculation of flow d2\'iation in typical systems of header arrangement is obtained with the help of a digital computor and presented in the paper.

本文给出了一般大容量电站锅炉中常用的复杂过热器连接系统的流量偏差计算方法,包括:(1)整个过热器系统分成两路而在两路的汇总处单侧引出过热蒸汽;(2)过热器管组的引入引出方式不属于典型的Z型、U型或L型等布置型式,而是用几根导汽管在集箱中部引入或引出。最后文中还列出了用电子计算机计算得出的典型集箱布置系统的流量偏差简化线算图。

In order to control the steam temperature at the outlet of the primary superheater of a 1000 t/h once-through boiler, the start up condition is analyzed in accordance with the concept of " isenthalpic switchover" and it is suggested that the ratio of fuel feed to steam flow through the primary superheater before the switchover during cold startup be used as the criterion for judgement. The static and dynamic characteristics of the steam temperature regulation, if the spray-type desuper heater located...

In order to control the steam temperature at the outlet of the primary superheater of a 1000 t/h once-through boiler, the start up condition is analyzed in accordance with the concept of " isenthalpic switchover" and it is suggested that the ratio of fuel feed to steam flow through the primary superheater before the switchover during cold startup be used as the criterion for judgement. The static and dynamic characteristics of the steam temperature regulation, if the spray-type desuper heater located before the primary superheater is reinstated, are also analyzed. In addition, the dynamic response curve of the primary superheater and some other parameters are derived by using simplified equations of dynamic behaviour.

为控制1000吨/时直流锅炉低温过热器出口汽温,本文系根据“等焓切换”原理对锅炉启动工况作了分析,并提出以冷态启动切分前锅炉燃料量与低温过热器工质通流量的比值作为判断依据。还讨论了恢复低温过热器前喷水减温器后的汽温调节静、动态特性,并利用简化了的动态方程求得低温过热器的动态飞升曲线及其它特性参数。

 
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