In the application of the Toms' effect to hydraulic transportation of solids in pipelines, it is a very important problem to evaluate the pressure loss in pipe bends. In this paper we describe an experimental study of the pressure loss in a vertical pipe bend flow. The fluids used in this...
both sections, via bellows, such that they are pressure-tight and can be displaced axially, a pressure-tight endpiece (7) being provided at the free end of the clamping device, and perforations (16) being provided in the region of the saddle section, for pressure relief on the pipe bend...
The pressure loss due to flow bending is one of the most important elements showing flow characteristics in a miter bend. But hydraulic or hydrodynamic investigations have not been made sufficiently on the mechanisms of the pressure loss. So in this report its mechanisms are studied by making exp...
专利名称：Pressure neutralising compensator for a pipe bend 发明人：STUMM, HANS-PETER 申请号：EP92108196.4 申请日：19920515 公开号：EP0523340A1 公开日：19930120 专利内容由知识产权出版社提供 专利附图：摘要：A pressure-relieved pipe bend compensator is proposed, consisting of a first connecting piece...
Minor pressure loss with fittings in piping heating systems. Minor pressure loss in a piping system is caused by valves, elbows and other components. The tables below can be used as an indication of the minor loss coefficients of some common components in piping systems: Fittings - Minor ...
A set of numerical data of pipe bends with shape irregularities obtained from ANSYS analysis is used in ANN to obtain a mathematical relationship between various design parameters of pipe bends namely pipe diameter, wall thickness, bend radius, ovality, thinning/thickening and the internal pressure ...
A pressure mandrel (8) is inserted from one end into a pipe bend (1) until it adjoins the curved wall area. The pressure mandrel is then moved over its contact area with the pipe wall to produce an outwardly directed open neck (3) in the curved area. The mandrel is then withdrawn ...
Pressure drop in compressed air pipe line fittings can be expressed as equivalent length in meters of pipe line. Compressed Air Pipes - Fittings and Equivalent Pipe Length Pressure Loss - SI Units FittingEquivalent Pipe Length (m) Nominal Pipe Size (mm) 1520253240506580100125 90o bend 0.15 0.2 ...
1.It can not require a pressure loss.它不会造成压力损失。 2.pressure-loss operated deluge valve压力损失动作的雨淋阀 3.Analyses on pressure loss in hydraudic pressure system;液压系统中液流压力损失的相关分析 4.Propeller meters introduce small pressure losses.螺旋浆式流量计的压力损失 ...
1)Pressure Loss压损 1.Numerical and experimental investigation of pressure loss and critical sealing characteristics of straight-through labyrinth seals;直通篦齿封严结构压损规律和临界特性的研究 2.Cause analysis of large pressure loss in main steam valve system of 600MW steam turbine某600MW机组主汽阀...