背压

基于MATLAB的背压气路特性曲线分析

Analysis of the Characteristic Curve in the Backpressure Gas Path Based on MATLAB

反应气体流量和背压对PEM燃料电池性能的影响

Effects of Reactant Flow Rate and Backpressure on the Performance of PEM Fuel Cells

喷射参数主要包括了喷射压力、背压、不同压差和不同空穴数CN。

Injection parameters include injection pressure , back pressure , different pressure differential and different cavitation number CN .

随着背压的增大，除了HC外，各排放物的比排放呈增大趋势。

As the back pressure increases , the values of all emissions are larger than before in addition to HC .

在高压EGR系统中，背压阀的位置对柴油机性能有一定影响；

The situation of back pressure valves can affect the performance of diesel engines with high pressure systems ;

在进行了LPG发动机缸内直接喷射研究基础上，研制了一套带有背压装置新型LPG缸内直接喷射系统。

Based on the study on the LPG direction injection system , we developed a new type LPG direction injection system that contains back press equipment .

基于排气背压法判断DPF再生时机，阐述其再生控制原理。

Based on method of exhaust back-pressure to judge DPF regeneration time , working principle of regeneration control system was introduced .

目前，过滤系统存在的溶解氧控制问题有：脱氧水制备量不足；CO2回收量不足，造成过滤或灌装车间用空气背压；

Currently , the problems in filtration system covered the following aspects : scanty preparation of deoxygenated water and insufficient yield of CO 2 which resulted in air as backpressure in filtration and bottle-filling plants ;

实验中发现，随着喷射压力及背压的的提高，CCD所得粒子图片相关处理后的速度矢量图质量呈现低-高-低的趋势。

According to the experiment , it is found that the quality of velocity vector images after processed from the image captured CCD show a low - high - low trend with the injection pressure and ambient pressure increasing .

设计装有DPF及其喷油助燃再生装置的发动机实验台架，实时采集油耗与DPF背压数据，利用MATLAB建立DPF再生排气背压MAP。

To design the test-bed for diesel engine with a burner-type DPF , and gather the real-time fuel consumption and DPF back-pressure , the DPF regeneration exhaust back-pressure MAP was built with MATLAB .

以300MW直接空冷机组空冷凝汽器为例，分析了反映机组运行性能的汽轮机背压的影响因素。

Based on the air-cooled condenser of a300MW unit , the factors that affect the exhaust steam pressure were analyzed .

借助FLUENT软件对新型消声器内部流场进行了详细的分析，最后通过台架试验考察了两款消声器的排气背压和插入损失。

The analysis of the flow field inside the new type muffler was made with the help of FLUENT . The pressure drop and insertion loss of both mufflers were studied in the engine bench test .

在进行仿真时，以改变夹具出水孔的直径为手段，进行了不同背压条件下COMSOL仿真。

Simulating based on COMSOL on different backpressure conditions was done by changing water hole diameter of the fixture means .

作者按照Bosch长管法，设计了无背压喷油规律的测定装置，进行了试验，并对测量结果的可靠性进行了研究。

A measuring equipment of no back pressure for Bosch injection rate has been designed and operated . The reliability of its measuring results has also been investigated .

25MW背压式汽轮发电机组控制系统的改造

Reconstruction of Control System of 25 MW Back - Pressure Turbo - Generator Unit

200MW汽轮机多背压运行的热经济性分析

An Analysis of the Thermodynamic Effectiveness of a 200 MW Steam Turbine with Multiple Back pressure Operation

设计的引射器背压在0.08～0.1MPa之间为宜；

The design back pressure of the ejector is better to be 0.08-0.1 MPa ;

当背压大于LPG的临界压力时，两种混合燃料的喷雾贯穿距离和喷雾锥角均随喷射压力的上升、喷孔直径的增大而增大；

When the back pressure is larger than the LPG critical pressure , the spray penetrations and spray cone angles of both LPG / diesel fuel blends manifest to increase with the increase of injection pressure and nozzle hole diameter .

结合现场试验曲线和运行经验，得出不同环境温度、不同运行工况下空冷机组经济背压值，通过现场DCS控制模块，实现背压调节回路中设定值的自动给定。

Combining with the test curve and the operation experience , got a different environmental temperature , different operation conditions of air cooling unit economy back pressure value . Through the field DCS control module , realize back pressure adjusting loop of the automatic a given value .

新上一台背压汽轮机拖动一台DN1600焚硫送风机，做功后的低压蒸汽外售。

Build a new backpressure turbine to pull one DN1600 burning sulfur blower , worked low-pressure steam is used for sale .

为了能够将PLZT产生的微小变形（位移）转换成具有一定大小的气体压力差，研究背压式气动传感器的静特性，通过实验测出最佳参数组合。

In order to convert the transfiguration ( displacement ) produced by PLZT into an acceptable pressure gap , static characteristics of back pressure pneumatic sensor are studied and the optimum parameter group is measured by experiment .

根据多道次ECAP试验的位移-挤压力关系曲线，考察了加工工艺条件（加工道次数、背压与加工速率）对变形组织形态的影响规律。

Based on the curves of displacement versus extrusion force during multi-passed ECAP , a mode of evolution of deformed microstructure was analyzed under different pressing conditions ( e.g. number of passes , back-forces , and deforming rate ) .

利用此模拟计算结果，可以揭示气缸内气体背压和气体温度、喷射压力、喷孔直径及Sauter平均直径对喷注贯穿距离、喷雾锥角的相互关系。

This fuel spray Simulating calculation can reveal the relations among penetration , spray cone angle , injection pressure , gas back pressure and temperature in the cylinder , nozzle diameter , Sauter mean diameter , etc.

华电zQ电厂热网循环泵节能改造项目采用的是背压式汽轮机代替电动机方案，目前已改造完成并投入使用，经过详细计算、分析，其经济收益较为明显。

Huadian ZQ Power Plant circulation pump energy-saving projects used to replace the motor program back pressure steam turbine , the transformation was complete and put into use , after detailed calculations , analysis of the more obvious economic benefits .

介绍了新开发的三种仪器LK-05、LK-06型高压流量控制器和BYK-07型背压控制器的工作原理、特点及设计原则。

Three types of new developed controllers model LK-05 and LK-06 high pressure flow controllers and model BYK-97 back pressure regulator , are presented in this paper .

设计工况下，当蛇形翅片扁平管结构凝汽器积灰厚度达到1.2mm时，汽轮机背压将增加50%左右。

Under design operating conditions when dust accumulation on finned spiral flat tube-structured condensers has a thickness of 1.2 mm , the steam turbine back pressure will increase by about 50 % .

南阳石蜡精细化工厂动力站的B3-3.43/0.981型背压式汽轮机，先后出现了轴承振动，推力盘、轴径刮伤等故障。

B3-3.43/0.981 type back-pressure steam turbine in the power station of Nanyang Factory of Paraffin Fine Chemical has troubles of bearing vibration , thrust disc and journal scratch .

本文通过大量试验，对所设计的6110A柴油机排气微粒过滤器的背压随转速、过滤体孔隙率、过滤体长度的变化规律及排气背压对柴油机功率、油耗的影响进行了系统的研究。

In this paper , the back pressure of the 6110A diesel particulate filter versus its speed , the filter length and porosity was studied by a lot of experiments . And the effects of the exhaust back pressure on engine power and fuel consumption were also studied .

空冷汽轮机高背压末级叶片研制

Development of High Back-pressure Last Stage Blade for Air Cooled Turbine

多背压凝汽器温差场均匀性分析

Analysis of multipressure condensers by uniformity principle of temperature difference field