压差范围 meaning in English
area of pressure differential
pressure differential range
Examples
- The enterprise cangzhou water treatment equipment co . , ltd . offers osmosis among other things
公司提供差动、差别、差速器和渗透、渗透作用以及压差范围内的可行性方案。 - The prepared sdse modified zirconum meinbrane was tested at the wider range of tcmperaure and pressure and differellt composihons of hydrogen mixturc gases ( i . e . different hydrgen panal pressure ) in order to examine the performance of this membrane and the sole hpermselechvity of the membrane . the results showed tha the purity of the permeated hydrgen is l00 % at the base of the detection greatest lower lanit of the qhle mass spectrometer , and there was no impurity gas passed , the permeating flux and permeability of this membrane are from several decades times to one decade times more higher than tha of a palladum membran in the range of from 593k to 773k , puv = 0 . 2 ~ 0 . 3mpa , pdn = 4x l04pa - - 0 . lmpa , the hydrogen permeatng flux is increased with the difference of the squto root of pressure , and presents a linear relationship , the pressure seems has no influence on the permeablity , the permeabi1ity is decreased with the increasing of the temperature , and presents an exponential relationship , accondng to the fitting curve of the relationship betwen the permeability and the temperatur derived from the experimenta daa , in the range of 593k ~ 773k , pup0 . 2 ~ 0 . 3mpa , pha = 4 x l0 # pa ~ 0
在更宽的温度范围、压差范围内，在不同原料气组成(即不同的氢气分压)条件下，对所制备的锆表面改性膜进行了渗氢性能实验，考核了膜对氢的唯一选择渗透性，结果表明：在四极质谱的检测下限内，只有氢气存在，而无杂质气体通过；在593k 773k温度范围内，锆表面改性选择渗氢膜具有高于钯膜数十倍至十几倍的渗氢流量和渗氢系数；其渗氢流量随着膜两侧氢分压平方根摘要差的增大而增大，并且呈线性关系；压力对膜的渗氢系数几乎无影响；膜的渗氢系数随着温度的升高而下降，井巨呈指数关系：根据对实验数据所作渗氢系数与温度关系曲线的拟合，在温度593k 773k范围内，压差p 、 0二0 - Lmpa , the relationship is f di = l 55xl0 - " e47j l t ) in this range , the relative error of the hydrgen permeabilty bbeen the experimental values and the formula values are less than 3 % , the durability test showed that after the cycle experiments of prcssure and tempebe for 30 days , the perfrmance of the membran did not change , at last , the theory of hydrogen permeaton was discussed , too . through this work , the pfepared surf ases modified zirconium memran can satisfy the requirement of the purity and the permeating fiux of hydrogen isotope gas
Imp范围内，铝表面改性选择渗氢膜的数学表达式为： （ 1320 i 155x10 ” exd l “ t ）在这个温度和压差范围内，渗氢系数的实验数据计算值与数学公式计算值的误差在3以内；铬表面改性选择渗氢膜的寿命考核实验表明，经过连续30大的循环温度、压力实验，膜的质量、性能无变化；并讨论了膜的渗氢理论。