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1)  Nozzle [英]['nɔzl]  [美]['nɑzḷ]
开孔接管
1.
Prediction of the Stress Concentration Factors of the Nozzles on the Internal Pressure Cylinders;
内压筒体开孔接管结构应力集中系数预测
2.
The method for generating 3-D FEM mesh for pressure vessels with nozzle;
开孔接管结构三维有限元建模方法
2)  opening tubing connection
开孔接管
1.
A three dimensional(3D) finite element method is used to analyze the stress on opening tubing connection on pressure vessels,the stress distribution information of vessel barrel,tubings and position of connection are obtained.
对压力容器开孔接管区进行了三维有限元分析,获得了容器筒体、接管及其连接部位的应力分布信息。
2.
Based on the practical situation of the steam header of boiler in a power plant,a 3D model of the opening tubing connection of steam header of boiler is built by using software of PRO/E,and extending experiment at room temperature and at high temperature for 12Cr1MoVg is carried out.
主要根据某电厂锅炉集箱实际情况,采用PRO/E软件建立了锅炉集箱开孔接管部位的三维模型,进行了电厂锅炉集箱常用材料12Cr1MoVg的常温和高温拉伸试验,分析了集箱的受力情况,以及锅炉集箱开孔接管部位的1/4三维模型的热应力,得到了其最大应力的分布规律,指出了集箱裂纹产生的原因和位置及其发展趋势。
3)  nozzle openings
接管开孔
4)  nozzle (see Nozzle opening)
接管(见接管开孔)
5)  vessel-nozzle junction
开孔接管区
6)  cylinder-nozzle intersection
开孔-接管区
1.
Experimental study of elastic stress of cylindrical shell cylinder-nozzle intersection under combined loadings;
组合载荷作用下开孔-接管区弹性应力试验研究
补充资料:布气临界开孔率
分子式:
CAS号:

性质:均匀分布流体的分布板的最小开孔率,也是区分高压降分布板和低压降分布板的标志。郭慕孙根据散式流态化的理论和高压降分布板的概念,导得分布板的临界开孔率式中,流量系数c=0.99[d0/t)-0.125;L为床高;g为重力加速度;u为表观线速;ρf为流体密度;△ρ为颗粒与流体的密度差;d0为分布板孔径;亡为分布板厚度,对于具有散式特征的某些细粒流化床;n=4.65;εmf=0.4。

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