设计工况 meaning in English
design condition
design situation
designed conditions
Examples
- By comparing the calculated results and test data for a multi - stage axial compressor , this method demonstrates that it could assist in predicting the characteristics of multistage axial compressor and spanwise parameter distribution under off design working conditions
对一台多级轴流压气机的计算结果与试验数据的对比分析表明，该方法能较好地预测多级轴流压气机的特性和非设计工况下级间参数的分布。 - Detailed numerical simulation of krain impeller at design operating condition is made , the computed results , such as circumferentially averaged shroud static pressure distribution , meridional velocity and relative flow angel et al . , show good agreement with experimental data
对krain高速离心叶轮在设计工况下的内部流场进行了详细的数值模拟，计算所得轮盖压力分布、子午速度及相对气流角分布与实验结果吻合较好，并且进一步加深了对二次流机理的认识。 - This article aims at the boiler ' s problems in operation : 1 ) under nominal load , the smoke temperature at the outlet of hearth reaches 1200 , far more exceeds 1050 the original designed temperature . this will always result in slag inside boiler and the temperature of overheater ' s pipe superheat , so that boiler cannot take nominal load and all these influence boiler ' s nomal operation heavily , 2 ) this article also studied the reason why the assistant oil becoming necessary when coal changes . during the nomal operation , many factors ( makeup of combustor and its disposal , smirch and encrust of water wall , excessive air coefficient , temperature of primary air , coal type and density of coal dust ) can deviate the designed working conditions , then affect the boiler ' s nomal operation
本文针对该锅炉在实际运行中存在的问题：在额定负荷下，炉膛出口超温、低温段过热器前烟温高达936 ，远远超过815的设计值；喷燃器四周水冷壁结焦严重，过热器管壁温度超标，无法带上额定负荷；甚至有时因燃煤质量的变化，必须投油助燃的严重情况进行了分析研究。在实际生产过程中，燃烧器的结构、布置，水冷壁的粘污、结垢，过剩空气系数、一次风温、煤种及其浓度变化等许多因素都会偏离锅炉的设计工况，从而影响炉内的传热和燃烧，造成炉膛出口超温、水冷壁结渣等问题。 - The main function is the calculation degree of all kinds of the valves ( cross valves , blades valves , draught valves , etc . ) fitted in the air system in the condition of the layout and airflow of the air system . and the calculation degree can be exported in the report forms , which can be treated as the fixing degree of valves
软件的主要功能为在已知风系统布置情况及系统风量设计参数下，计算设计工况下的系统中诸如多叶调节阀，风口调节阀，带调节阀片的四通等等部件的阀片计算开度，并将开度结果以报表形式输出，作为安装公司安装风阀时的风阀预调开度。 - Using fluid analyze software , the 3d turbulent flow is stimulated based on navier - stokes equations and k - model . the turbulent flow through axial flow pump impeller is simulated by using the non - uniform triangle mesh system and the finite volume method . calculated results are presented at the design operating condition for the impeller in detail , which give a valuable reference to improve the performance of the impeller
最后，应用cfx流体分析软件，基于n - s方程和标准-紊流模型，采用非结构化网格技术，用联立求解各变量代数方程组的方法对设计工况下的轴流泵叶轮内部的三维紊流场进行了详细的数值计算与分析，并预测其性能。