Determination of the right perforating pressure differential in water injection wells;
注水井合理射孔压差的确定
The pressure differential of the Co-Mo catalyst bed of hydrogenation reactor was 4.
对钴钼加氢反应器运行7个月床层压差达到设计值的4。
The corrected coefficient K is in-troduced and calculated in the manner of single steam generator to single well,by which the steam flow rates in different chokes,temperatures,pressures and pressure differentials are gained using choke-pressure differen-tial equation.
根据孔板计量的原理和基本方程,针对蒸汽—水两相的可转化特性,引入了校正系数K,通过单炉对单井方式注汽试验求取了K值,进而用油嘴-压差公式求出了不同油嘴、温度、压力和压差下的蒸汽流量。
Solution to the influence of the intermittent local ventilation on the pressure difference between rooms in a pharmaceutical workshop;
固体制剂车间间歇性局部排风设备对压差影响的解决方法
Study on testing water head loss of water pipe by the high - precision pressure difference test meter;
高精度压差测量仪测试给水管道水头损失研究
Reasons and countermeasures of pressure difference of ionic membrane electrolyzer;
离子膜电解槽形成大压差的原因及对策
Investigation on the increasing rules of differential pressure during the operation of filter;
过滤器运行期间压差增长规律的探讨
Overflow valve differential pressure and max. permissible differential pressure of Roots vacuum pump;
罗茨真空泵的最大允许压差和溢流阀压差
During underbalanced drilling,the design of underbalanced differential pressure is very important.
欠平衡钻井时 ,如果负压差不合理 ,压差过大 ,地层流体产出速度很高 ,对于速敏感性地层 ,极易引起储层内部微粒运移 ,堵塞孔喉 ,导致近地带的储层伤害 ;对于应力敏感性强的储集层 ,过低的井底压力降低了近井地带地层的孔隙流体压力 ,导致裂缝趋于闭合。
In the experiment of determination of flow resistance of single phase,one of the experiments of chemical theory,there were two methods to determine the pressure drop.
在化工原理实验单相流体阻力测定实验中,压差的测定方法一般有两种。
When the Tcho<60℃,the hydraulic oil fluidity was the most important factor that influenced the pressure drop of the filter element,and the filtration resistance decreased quickly as the tempera.
采用自制的试验装置,对多层复合折叠滤芯过滤脏液压油进行了试验研究,结果表明:(1)液压油温度(或粘度)对滤芯的上下游压差影响很大。
The article is to analyze the reason of cavitation in the use of control valve, and brings forward the ways to control and reduce cavitation damage from inner structure ?allotting pressure drop and choosing material.
分析了调节阀使用过程中产生汽蚀的原因 ,并从阀门内部结构、压差分配和材料选择等方面提出了控制和减小汽蚀破坏的方
Review on explosion puffing drying by modified temperature and pressure for Hami-melon;
哈密瓜变温压差膨化干燥技术研究进展
A central composite rotatable design (CCRD) was adopted to optimize the technology of explosion puffing drying at modified temperature and pressure for potatoes and the effect of water content after puffing temperature (X1), vacuum drying temperature(X2) and vacuum drying time(X3) on the water content after puffing(Y1), crispness(Y2), and color (Y3) were analyzed.
采用三因子二次回归正交旋转组合设计,对马铃薯变温压差膨化干燥工艺进行了优化研究。
Using the technology of explosion puffing drying for Hami-melon at modified temperature and pressure, the effect of water content after pre-drying, puffing temperature, vacuum drying temperature and time, residence time and preesure difference on degree of water content after puffing, crispness, bulk density and color were analyzed.
采用变温压差膨化干燥技术,探讨预干燥后水分含量、膨化温度、抽空温度、抽空时间、停滞时间和压力差等因素对哈密瓜脆片产品的水分含量、脆度、膨化度和色泽的影响。