汽门快控,Fast valving,在线英语词典,英文翻译,专业英语

1) Fast valving

汽门快控

2) steam valves

汽门

Expounds the comprehensive stability controlfor excitation, steam valves and braking resistors is one ofthe most economic and feasible means by which the trans-fering power and stability of generator sets and electricnetwork can be improved, and the control principle,technical actions and their effects as well.

论述了励磁汽门与制动电阻的综合稳定控制，是提高机组和电网稳定性及输送功率的最经济可行的技术措施之一，并阐述了控制原理、技术措施及其效果。

3) steam-valve control

汽门控制

For analyzing the stabilizability of excitation and steam-valve control system of a generator,this paper constructs an extend Hamilton function by using energy-Casimir function based on stabilizability theory of generalized Hamilton system.

为了分析发电机在考虑励磁与汽门控制作用下的镇定性问题,依据广义Hamilton系统的镇定理论,利用能量-Casimir函数构造了一个扩张的Hamilton函数,推证了该扩张的Hamilton函数的Hesse矩阵的正定性,从而证明了该扩张的Hamilton函数是系统的Lyapunov函数。

4) main steam valve

主蒸汽门

On-line valve test results showed that the fault was caused by the little flow through the left-side main steam valve with a block or very small opening.

为查找原因,从数字式电液(DEH)调节系统的控制逻辑、汽轮机调门的流量特性和阀门活动过程等方面进行了分析,并通过阀门在线活动试验,最终确定了机组故障原因是左侧主蒸汽门堵塞或开度很少致使其通流量很小。

5) control valve

调节汽门

The possibility of combustion ratio of boiler and control valve of governing system disturbance inducing the variation of .

详细分析了锅炉燃烧率扰动和汽轮机调节汽门扰动能否引起汽轮机功率变化。

By means of the relative flow rate ratio coefficient,ratio of pressure and opening degree of a control valve in a 600MW steam turbine,firstly,the relational expression is fitted by Back Propagation(BP)neural networks so as to obtain the mathematical model of control valve.

借助于试验数据和理论计算得到的某600MW汽轮机单个调节汽门的相对流量比系数、前后压力比与调节汽门开度的数值,首先利用BP网络对其之间的关系进行回归,以便得到调节汽门的数学模型,但发现当试验数据较少时BP网络的外推能力较差。

6) governing valve

调速汽门

In view of the excessive temperature difference of turbine cylinder metal during start-up of 60 MW power generator sets in Xicun Power Plant,China,the relation between the opening of oil-driven machines and that of governing valves is analyzed along with the relationship between governing valve opening and cylinder steam flow;thus a solution to the problem is presented.

通过分析油动机开度与调速汽门开度的关系、汽轮机调速汽门开度与汽缸蒸汽流量的关系,提出了解决汽缸金属温差大的办法。

参考词条

快控汽门汽门阀中压主汽门主汽门滤网主汽门阀壳再热主汽门电动主汽门主汽门开度高压调汽门鞭打绣球甙A和B 高炉砖

补充资料：汽门快速控制

　　一种提高电力系统暂态稳定性的控制措施。它是具有快速电液调速系统的汽轮发电机组过速保护的一种发展。当检测出发电机电功率变化及电功率与原动机输入功率差额达到某一事先设定的数值后，即控制中压汽缸前的中间阀门,使之快速关闭，然后再逐渐打开,由于减小了原动机输入功率和发电机输出功率之间的差额，可以有效地提高电力系统的暂态稳定性。
　　
　　经特殊设计、制造出来的中间阀门,可以在0.1～0.2秒内从全开到全关，它大约可以减少总的原动机输入功率的70％。但是由于检测及控制回路的时滞，中间阀门后原有蒸汽膨胀产生的能量,大约要经过0.4～0.5秒,才能使输入功率减少到原有功率的35％。虽然如此，汽门快速控制仍然能明显地提高电力系统的暂态稳定性。
　　
　　为了使汽门快关的程度与故障严重程度相配合，目前正在发展快速响应的汽门关闭及开启的液压装置，并正在开展与计算机在线控制相结合的控制措施。
　　

说明：补充资料仅用于学习参考，请勿用于其它任何用途。

首页 \| 翻译 \| 影视 \| 论坛 \| 索引汽门摆动主汽门主调汽门汽门快关快速汽门快关汽门

1) Fast valving 汽门快控 2) steam valves 汽门 1. Expounds the comprehensive stability controlfor excitation, steam valves and braking resistors is one ofthe most economic and feasible means by which the trans-fering power and stability of generator sets and electricnetwork can be improved, and the control principle,technical actions and their effects as well. 论述了励磁汽门与制动电阻的综合稳定控制，是提高机组和电网稳定性及输送功率的最经济可行的技术措施之一，并阐述了控制原理、技术措施及其效果。 3) steam-valve control 汽门控制 1. For analyzing the stabilizability of excitation and steam-valve control system of a generator,this paper constructs an extend Hamilton function by using energy-Casimir function based on stabilizability theory of generalized Hamilton system. 为了分析发电机在考虑励磁与汽门控制作用下的镇定性问题,依据广义Hamilton系统的镇定理论,利用能量-Casimir函数构造了一个扩张的Hamilton函数,推证了该扩张的Hamilton函数的Hesse矩阵的正定性,从而证明了该扩张的Hamilton函数是系统的Lyapunov函数。 4) main steam valve 主蒸汽门 1. On-line valve test results showed that the fault was caused by the little flow through the left-side main steam valve with a block or very small opening. 为查找原因,从数字式电液(DEH)调节系统的控制逻辑、汽轮机调门的流量特性和阀门活动过程等方面进行了分析,并通过阀门在线活动试验,最终确定了机组故障原因是左侧主蒸汽门堵塞或开度很少致使其通流量很小。 5) control valve 调节汽门 1. The possibility of combustion ratio of boiler and control valve of governing system disturbance inducing the variation of . 详细分析了锅炉燃烧率扰动和汽轮机调节汽门扰动能否引起汽轮机功率变化。 2. By means of the relative flow rate ratio coefficient,ratio of pressure and opening degree of a control valve in a 600MW steam turbine,firstly,the relational expression is fitted by Back Propagation(BP)neural networks so as to obtain the mathematical model of control valve. 借助于试验数据和理论计算得到的某600MW汽轮机单个调节汽门的相对流量比系数、前后压力比与调节汽门开度的数值,首先利用BP网络对其之间的关系进行回归,以便得到调节汽门的数学模型,但发现当试验数据较少时BP网络的外推能力较差。 6) governing valve 调速汽门 1. In view of the excessive temperature difference of turbine cylinder metal during start-up of 60 MW power generator sets in Xicun Power Plant,China,the relation between the opening of oil-driven machines and that of governing valves is analyzed along with the relationship between governing valve opening and cylinder steam flow;thus a solution to the problem is presented. 通过分析油动机开度与调速汽门开度的关系、汽轮机调速汽门开度与汽缸蒸汽流量的关系,提出了解决汽缸金属温差大的办法。参考词条快控汽门汽门阀中压主汽门主汽门滤网主汽门阀壳再热主汽门电动主汽门主汽门开度高压调汽门鞭打绣球甙A和B 高炉砖补充资料：汽门快速控制　　一种提高电力系统暂态稳定性的控制措施。它是具有快速电液调速系统的汽轮发电机组过速保护的一种发展。当检测出发电机电功率变化及电功率与原动机输入功率差额达到某一事先设定的数值后，即控制中压汽缸前的中间阀门,使之快速关闭，然后再逐渐打开,由于减小了原动机输入功率和发电机输出功率之间的差额，可以有效地提高电力系统的暂态稳定性。　　　　经特殊设计、制造出来的中间阀门,可以在0.1～0.2秒内从全开到全关，它大约可以减少总的原动机输入功率的70％。但是由于检测及控制回路的时滞，中间阀门后原有蒸汽膨胀产生的能量,大约要经过0.4～0.5秒,才能使输入功率减少到原有功率的35％。虽然如此，汽门快速控制仍然能明显地提高电力系统的暂态稳定性。　　　　为了使汽门快关的程度与故障严重程度相配合，目前正在发展快速响应的汽门关闭及开启的液压装置，并正在开展与计算机在线控制相结合的控制措施。　　说明：补充资料仅用于学习参考，请勿用于其它任何用途。
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