聚丙烯管

设计了一种新型旋转切向流聚丙烯管式膜器，实验研究了聚丙烯PA管式膜器的能耗。

A new type of polypropylene tubular membrane module in rotating tangential flow was designed to experimentally study energy consuming of the polypropylene PA tubular membrane microfiltration .

聚丙烯管PP-R的安装指南

Manual for installation of polypropylene pipe

无规共聚聚丙烯管材料结构及性能研究

Research on Structure and Property of Randomly Polymerized Polypropylene for Pipes

给水管道设计中三型聚丙烯管系列S值的选择

How to choose S value in polypropylene water supply pipes design

β晶型成核剂改性聚丙烯管材料研究

Study on PP Pipe Resin Modified with β - nucleating Agent

旋转聚丙烯管式膜器微滤试验研究

Research on micro filtration with rotary polypropylene tubular membrane separator

冷热水用聚丙烯管的热熔连接和安装技术

Transporting Cold and Hot Water Polypropylene Pipe Hot-Melting Connection and Installation Technology

无规共聚聚丙烯管力学性能影响因素的研究

Study of Effect Factors on the PP-R Pipe Mechanical Properties

给水用聚丙烯管材料的研究

Study on PP speciality for water pipes

对以改性聚丙烯管为管材的低温热水辐射采暖方式进行了系统分析。

The low thermal water radian heating type with modified polypropylene pipe is systematically analyzed .

旋转直线切向流聚丙烯管式膜器环隙切剖面流场测试

Flow Field Test on the Tangential Section of Polypropylene Tubular Membrane Module Annular Gap in Rotating Linear Tangential Flow

研究了β晶型成核剂对聚丙烯管材料力学性能和结晶行为的影响。

The influences of β - nucleating agent on mechanical properties and crystallization behavior of PP pipe resin were studied .

以聚丙烯管为内衬，表面经处理后，缠绕浸胶玻纤，形成独特的聚丙烯/破纤缠绕复合管。

The unique PP / GF winding composite pipe was formed with PP tube as the underlayer , winding with GF on the pretreated surface .

测定了金塑复合管的阻力性能，并与同一规格的镀锌管、聚丙烯管进行比较。

The friction property of metal composite pipes with plastic-plating was measured and compared with that of zinc-plating and polypropylene pipes of the same size .

聚丙烯环管反应器的自控工程设计及在DCS中的实现

The Auto-Control Design of Polypropylene Loop Reactor and Realization in DCS

实验研究了旋转切向流聚丙烯PA管式膜微滤。

Polypropylene tubular membrane microfiltration in rotating flow was experimentally studied .

介绍了三型聚丙烯PP-R管的特性，论述了PP-R管在建筑给水管道系统中的应用及应注意的几个问题。

The characteristics of PP R pipe was introduced , the application of PP R pipe in water supply pipeline system of buildings and several problems to be noted were described .

70000t/年聚丙烯组合管式反应塔制造技术

70000t / a Polypropylene Composite Pipe Type Reaction Tower Manufacture Technique

聚丙烯热水管料的研究开发

The research and development of polypropylene material for hot water pipe

聚丙烯环管反应器的动力学特征

Kinetic characteristics of the tubular loop reactor for PP polymerization

稳态操作下的万吨级聚丙烯环管反应器模型的建立

Simulation in a Loop Reactor for Polypropylene under a Steady Operating Condition

聚丙烯塑料管水力摩阻系数试验研究

Experimental Study on Hydraulic Friction Coefficient of Polypropylene ( PP-R ) Pipe

增强聚丙烯塑料管的性能及应用

Property of Reinforced PP Pipeline and its Application

聚丙烯环管中试装置稳态模拟

Steady-state simulation of polypropylene loop pilot plant

聚丙烯环管反应器大轴流泵机械密封的国产化研究

Domestic Research on Mechanical Seal of a Big Axial Flow Pump of Polypropylene Loop Tubular Reactor

本文论述了聚丙烯热水管的市场状况及基本性能，并介绍了聚丙烯热水管的开发情况。

The market situation and the basic characteristics of polypropylene hot-water pipe was discussed in this paper .

聚丙烯环管反应器是一种结构特殊的设备，也是工艺流程中十分重要的设备。

The polypropylene liquid bulking loops has a special structure and is an important device in the technological process .

采用壳单元对聚丙烯环管反应器进行网格划分，既降低了建模难度，又减少了有限元模型的节点数，提高了计算速度。

By using shell elements for meshing , modeling of the reactor is simplified , its node number is reduced , and calculation speed increased .

本文对结构和受载都非常复杂的聚丙烯环管反应器建立了有限元分析设计模型。

In this thesis , finite element analysis is carried out on a large polypropylene tubular loop reactor which is complicated both in structure and loadings .

根据水力学的相关理论，推导出用上述实测值计算聚丙烯塑料管水力摩阻系数的公式。

Based on the hydraulic theory , a formula , which uses the two measured values to calculate hydraulic friction coefficient of the polypropylene pipe , is formed .