The impact of baffle plate installation on the functions of hydromechanics and volumetric mass transfer coefficient K_(X_a) of cross-flow tower packed with raschig ring packings were studied.
研究了设置折流挡板对φ10 mm×10 mm不锈钢丝网拉西环填料塔流体力学性能和传质性能的影响,重点考察了不同的板间距(以折流挡板间距H与塔径D之比表征)对压力降、传质单元高度和液相总体积吸收系数K_(X_a)的影响并与普通填料塔相比校。
On the basis of this theory,twisted current tuyeres were developed and used in some dozens of iron making plants,and good results were achieved.
利用计算机风口烧损过程数模 ,对市场现有几种典型风口小套进行了简单剖析 ,提出了烧损风口小套的“铁水流股寿命”和“铁水流股破坏能力”的概念 ,分析了二者对风口烧损过程的作用机理及二者在实际高炉冶炼过程中的存在规律 ,在此基础上设计的折流式风口小套在数十个厂家的应用中取得了理想效果 ,为炼铁厂在不投资改造给水设备的条件下 ,设计低成本长寿风口提供了参考意见。
Based on the analysis of the structure and performance of rod baffle and orifice-baffle separately,the shortcomings of these two kinds’ baffles were found.
为了解决现有杆式支撑流通面积大、扰流作用不足以及孔板式支撑结构复杂、加工困难的问题,在对折流杆和孔板支撑进行结构和性能分析的基础上,开发了一种结构相对简单的花瓣孔板支撑,并建立了纵流式换热器的试验模型和试验装置。
The mechanisms of heat transfer enhancement and pressure drop reduction are analyzed of a new type of rod baffle shell and tube heat exchanger with spiral groove tube bundles.
描述了新型折流杆换热器的强化传热和降低壳层压力降的原理 ,它与传统折流板换热器相比 ,传热效率高 ,材料及能耗小。
The conventional tube-bundle supports, the arch baffle, is transformed into the various kinds of rod baffle, circle orifice plate and helical baffle, which not only improves the total heat transfer performance of the heat exchanger, but also greatly decreases the flow resistance of the shell side.
管束支撑由传统的弓形折流板发展为多种结构形式的折流杆、整圆形孔板和螺旋折流板等,不但提高了换热器整体传热性能,而且还大大降低了壳程流动阻力。
The gap between the baffle plates and shell was blocked by the sealer,which effectively decreased the short circuit flow in the shell.
密封器堵住了折流板与壳体之间的间隙,有效地消除了换热器壳体内部的流体短路现象。
Breakage and leakage took place on the baffle plate heat exchangers of Russian-made 300 MW electric generator units in a power plant shortly after the units were put into operation.
俄制300MW发电机组折流板结构闭冷器换热管在运行中短期内出现断裂泄漏,通过对泄漏原因的分析和研究,决定采用新型折流杆技术对换热器进行改造。