There should be a main valve between mother tube boiler and steam mother tube , which should be in remote control 6母管制机组的锅炉与蒸汽母管之间应有主汽阀,主汽阀要实现远方控制。
On series thermodynamic system , this paper studies about that how to make the cycling water warm serially and reform the negative - voltage unit 对于所研究的母管制热力系统,本文讨论了如何实行循环水串联供热的问题。
Water supplying pipe in front of the coal economizer should be installed with a stop valve and check valve for the factory using boiler of mother tube water supplying 7采用母管制供水的电厂,进入每台锅炉省煤器前的给水支管均应装设截止阀与逆止阀。两阀应紧接,按水流方向逆止阀在前。
It is indicated that , when a two - speed motor is used for driving oil transfer pump , the motor with the characteristic of torque reduction on square rotary speed should be chosen ; the working economy of the variable speed pump is restricted by the characteristic curves of pipeline resistance , and its speed control range is restricted by the pipeline resistance characteristic curve , the pressure head needed by the system and the working characteristic of the pump ; when several pumps work in parallel , the pump with better performance should be changed into speed - variable pump 指出双速电动机用于输油泵的调速时,应选用转矩按转速平方降低特性的电动机;调速泵的运行经济性受到管路阻力特性曲线的限制,其调速范围受到管路阻力特性曲线、系统所需扬程和泵运行特性的限制;在母管制系统中把部分定速泵改为调速泵时,应将性能较高的定速泵改为调速泵。
The paper concerns thermal systems of a main piping structure used in the petrochemical or electric power industry . in this paper , the conventional optimal dispatch approach is introduced first and its inability in application is pointed out on the basis of an analysis of the corresponding optimal dispatch model . therefore , on - line adaptive optimal dispatch is put forward with the need of improving the automatization level of power stations , and some major problems involved are discussed in details in this paper 以母管制热力系统为研究对象,本文首先介绍了通常所采用的优化调度方法,并通过分析所建立的优化调度模型指出了这种方法在实际应用中的不足,并结合电站自动化发展的要求提出了在线自适应的优化调度方法,就其中所涉及的一些主要问题进行了深入的研究。
母: mother管制: control母管: manifold水母管: water main云母管: mica pipe; mica tube; micanite pipe; shellac micanite tube泵站母管: pumping station -水母管,总水管: water main预埋螺母管: nut socket管制: 1.(强制管理) control 外汇管制 foreign exchange control; 交通管制 traffic control; 军事管制 military control2.(对罪犯强制管束) put under surveillance 管制处分 punishment of control; 管制劳动 labour [work] under surveillance; 管制灯 battle lantern; battle light; 管制股权 controlling interest; 管制商品 controlled commodity环形压力母管: pressurized ring main system螺母管继电器: solenoid relay缺乏父母管教: lack parental control管制,监查: control管制;调控: regulate管制的: administered; controlling管制灯: battle lantern管制点: control point管制队: control team管制法: drum-buffer-rope control dbr管制区: control area; controlled area管制上: ucl upper central limit管制室: manufacturing supervision office; observation window管制塔: control towers管制图: control chart管制下: lcl lower central limit