经济流速

油田注水管道经济流速的确定

Determination of Economic Flow Rate of Water In-jection Pipeline in Oilfields

油品输送的经济流速及管径

The economic flow velocity and pipe diameter in product transportation

供水系统的费用函数、理想管径与经济流速

Cost function , optimal pipe diameter and economical flow velocity of water supply system

基于经济流速的管壳式换热器优化设计

The optimal design of shell and tube heat exchanger based on the economic flow velocity

管道液流的经济流速模型

Economic Flow Velocity Model of Pipeline Fluid

针对已有供水管网管径优化方法的缺点，该文提出了一种基于经济流速的启发式管径优化算法。

Based on optimal economical flow , a heuristic method for pipe diameter optimization is presented .

经济流速计算

Economy Rate of Flow Calculation

供水系统中经济流速与管径优化节能工程试验研究

Engineering experimental research on energy-saving of economical flow velocity and pipe diameter optimization in water supply system

文中给出了经济流速的计算方法与计算实例。

It also gives the method of calculation of the economic flow velo - city model and an example .

本文研究钢管的使用壁厚以及不同工作压力及使用状况下的经济流速。

The adopted thickness of steel pipe and the economic flow rate in it under different pressure and working conditions are described in this paper .

特别是当管道长期处于低输量、偏离经济流速运行时，结蜡层的存在会对管道的热能及压能消耗产生更为显著的影响。

The wax deposition obviously affects on the heat energy and kinetic energy depletion particularly when the pipeline runs at a low throughput rate in a long time .

该模型将同时得到经济流速、设备及管道最佳直径和经济保温厚度，可作为管道工艺设计的基础；

Meanwhile , the economic flow rate , optimum diameter and economic insulating layer thickness of the equipment and pipeline have been obtained with the model , which provide a basis for pipeline design .

本文以管道基建费用，液体输送电费和泵站基建费用来建立管道液流的经济流速模型。

Based on the capital construction cost of pipeline , power cost of liquid transfer and the capital construction cost of pump stations , the article sets up the economic flow velocity model of pipeline fluid .

这样，依据经济流速、界限流量等传统管网设计方法将带来很大误差，造成的工程投资浪费也越来越明显。

Thus , the tradition design method on the basis of the economic flow velocity and boundary flow , will bring very great error , and the squander in investement is becoming more and more obvious .

并给出了经济流量比和流速比的确定方法和性质。

Present the confirmation method and property of economic specific flux ratio and velocity ratio range .

传统的单个设备或管道的经济设计导出的经济流速有一定局限性。

Economic flow rate derived from the economic design conventionally for single equipment or pipe exists some limits .

应用经济分析的理论方法，建立热风炉换热器的数学模型，并基于年折算费用最低的原则下，得出经济流速的表达式。

Applying economical analyse method , this paper established mathematics model of AHF . Based on the principle of the lowest year converted expense , the expression of economical velocity is obtained .