pump pipe

Numerical Simulation of Transient Flow in Pipe Networks due to Pump Failure

管网中泵破坏瞬变流的数值模拟

After analyzed, prediction is made that DOM pipe owns bright exploration prospect in automobile, high pressure pump pipe, high speed roller pipe, draught pipe in weave machine etc..

分析预测，该钢管在汽车用管、高压抽油泵管、高速托辊用管、纺织机用牵伸管等应用领域有较好的开发前景。

Pneumatic pipe without the use of booster pump lubricant.

气动管道增压泵无需使用润滑剂.

The utility model provides a double-stage slide valve vacuum pump, which consists of an air pipe and two slide valve cylinders.

一种双级滑阀真空泵，由气路管道和二级滑阀缸组成。

Optimization Research on Water Intake Pump Station in Large Diameter Pipe Pile of LNG Receiving Station

LNG接收站大直径钢管桩内取水泵站优化研究

In the stage of cold production, two lifting methods as screw pipe pump and rod pump can be applied, with assisting viscosity reducing measures which include adding viscosity reducing agent through the hollow rod or the production casing annular and electrical rod heating.

在冷采阶段可采用螺杆泵和有杆泵2种举升方式，均需辅以降黏措施，降黏方式有空心杆掺入降黏剂、油套环空掺降黏剂和电杆伴热3种。

When proceeding pump testing, it is laboursome and time-consuming to connect the pump and the pipe with the traditional method of flanges and bolts with low level of automatization.

水泵试验时，泵与管道的联接一般用法兰及螺栓联接，费时长，劳动强度大，自动化水平低。

Effective solutions are proposed for the selection of independent circuit, calculation of density for varying water temperature, calculation of thermal pressure and simulation of pump characteristic curve in numerical simulation of pipe networks.

对管网数值仿真中独立回路的选择、水温变化时密度的计算、热压的计算、水泵特性曲线的模拟等均提出了有效的解决方法。

By analyzing pipeline's system structure and logical structure of steady-state operating plan, it is thought that optimization problem for steady-state operating condition can be decomposed into two sub-problems which can be resolved in sequence-oil transporting temperature optimization and pump pipe matching optimization.

通过分析管道系统结构及稳态运行方案的逻辑结构，认为可将该系统稳态工况最优化问题分解为输油温度最优化和泵管匹配最优化两个可顺序求解的子问题。

Flow field of centrifugal pump ( Pump flow passage includes suction pipe, impeller and volute casing.) was obtained by solving the Reynolds average Navier-Stokes equation.

通过求解包括进水管、叶轮、泵体等过流部件在内的水泵流道内的三维稳定雷诺平均Navier-Stokes方程，获得水泵内部的流场分布特征。

According to the calculation results, circular pipe network could improve the hydraulic conditions, reduce the designed flux and water head loss, and debase the lift of fire protection water pump of wet automatic sprinkler systems.

由计算出来的结果可以看出，环状管网能够改善湿式自动喷水灭火系统的水力条件，减小系统的设计流量与水头损失，降低消防水泵的扬程。

Both the motor pipe and pump pipe are with stainless steel structure.

电机筒、泵筒采用不锈钢材料.