Relationship between discharge and head, power, efficiency of axial waterjet pump with guide vane is analyzed. 分析了不同流量下加导叶轴流泵器的流量和扬程、功率和效率的关系;
Study on Discharge Capacity and Energy Dissipation Measures of Mid-low Head Sluice-dam Project; After the circuit is well connected, you pull down the brake shoe and then the electric lamp will be turned on. 中低水头闸坝枢纽泄流能力及综合消能措施研究电路连接好后,把闸刀放下来电灯就能亮了。
Total Head& Sum of discharge head, suction lift, and friction loss. 总压头&扬升压头、吸升压头、及摩擦损失补偿压头的总和。
Based on the production by waterflooding in small block oilfields, a technique of production of near well with high discharge head is used to simplify the scale of waterflooding and reduce the investment. 针对小区块油田的注水开发,采用近井高扬程采注水技术,可简化注水规模和压缩投资。
According to experiments in U shape channel, the discharge formula and discharge-head relation and discharge error are all found. 通过在U形渠道上的试验研究得出该槽的流量公式、流量水头关系、测流误差。
Discharge capacity of low head sluice On Competence of Promoter Whose Capacity Is Deficient 低闸枢纽泄流能力研究行为能力欠缺者的公司发起人资格&基于法解释学的一般套路
An analytical discharge equation for the overflow channel is offered, and an empirical formula for discharge coefficient C_d in stable area under small head developed by means of experimental data. 文中建立了溢流槽的流量公式,并利用实验数据得出了稳定区内流量系数Cd的经验公式。
Numerical Simulation on 2D Flow Field of Discharge from Surface-bottom Outlet on Low Water Head and Large Diacharge 低水头大流量厂坝联合泄洪消能流场的二维数值模拟
Through the discussion on Theis model the formula for the calculation of groundwater head with alterable discharge and the formula for the calculation of groundwater recovery head are given. 通过对泰斯模型的讨论,分别给出了变流量的地下水头计算公式,地下水恢复水头计算公式,特别是变流量抽水时的恢复水位的计算公式。
Traditionally the pump assembly is selected by discharge and delivery head at the most unfavorable condition. 传统的设计方法是以最不利工况所需的流量和扬程作为设计点来选泵。
For large discharge and low lift head, it is especially suitable to use tubular pumps for their economic characteristics. 贯流泵是适用于大流量、低扬程的一种经济泵型。
Effect of the Heroin on the Spontaneous Unit Discharge of Neurons in the Head of Caudate Nucleus in Rat 海洛因对大鼠尾核头部单位自发放电的影响
A new page is added in the design of hydropower station project on Hongshui river with large discharge and low head. 在红水河大流量、低水头水电站工程设计中,谱写了新的篇章。
And compared with a high speed centrifugal pump, this pump can be used for pipeline transmission of medium with low flow, high discharge head in petroleum and chemistry industries, without speed increasing gears, high speed bearings and high speed seals. 与高速离心泵相比较,不需要增速齿轮、高速轴承和高速密封,适用于石油、化工等行业的小流量、高扬程介质的管道输送。
Between Air and Water Hydraulic calculation and water surface profile presumption for aqueduct with large discharge and lower head 大流量低水头渡槽的水力计算和加大流量时的水面线推算
This paper gives a description of discharge tube, mirror, laser head and laser power supply of an air cooling argon laser which output is over 1W, and shows its properties. 介绍输出功率超过1W的风冷氩离子激光器的放电管、反射镜、激光器头部和激光电源的设计考虑,给出了它的性能。
The discharge per unit width, head and velocity are big and natural condition at downstream energy dissipation area is poor. Problems of fluid state control of high-velocity flow and energy dissipation are prominent. 泄水建筑物单宽流量大、水头高、流速大,并且下游消能区自然条件较差,高速水流的流态控制和消能防冲问题突出。
In the situation of the same discharge, the weir over water head of the wall pressing weir flow is lower by 14%~ 16% on average than that of the free flow. 流量相同的情况下,贴壁流的堰上水头比自由流的堰上水头平均低14%~16%。
The application of ultrasonic wave method in discharge measurement of low head hydropower plant 超声波测流在低水头电站的应用
The silting from a river with heavy sediment lood seriously affects the discharge capacity and effective life of the head work of a detention basin for flood diversion. 多沙河流侧向分洪后,分洪工程的前后经常引起大量而迅速的冲淤变化,这种变化严重的影响进水能力与工程的运用寿命。
Because of great flood discharge and high water head, flood season construction protection difficulty is in the highest flight of same dam construction. 因渡汛流量大、水头高使其渡汛保护难度为同类型坝型之首。
This result shows inventiveness in design thought and energy dissipation philosophy for food discharge for high head and large unit discharge dissipation structure provides scientific basis for project design and can apply widely in relevant projects. 该研究成果对高水头、大单宽流量底流消能理念和设计思路具有创新性,为工程设计提供了科学依据,成果可在相关工程中推广应用。
Initial discharge rate and inertia head calculation in lock filling and empty system 船闸输水初始流量增率和惯性水头计算
Test on discharge capacity for low head hydraulic projects requires higher accuracy which conventional methods cannot reach. 低水头水利枢纽对泄流能力的试验精度要求较高,一般水工模型试验的精度难于满足工程要求。
Therefore, in the stability design of slab, it is not proper that no consideration is paid to the pulse pressure in the design standards, especially for the protection design of the slab of discharge structure with high water head. 因此,板块的稳定性设计必须考虑脉动荷载的作用,特别是对于中、高水头工程。
Discharge capacity of low head sluice 低闸枢纽泄流能力研究
Aiming at the need for large displacement and high discharge head for oil production equipments in oilfield, combined application of double-thread PCP ( progressing cavity pump) and circular cross-section coiled pumping rod is put forward in this paper. 针对油田生产对于大排量、高扬程采油设备的需求,文章提出了双头大排量单螺杆泵与圆截面钢质连续抽油杆配套使用的方案。
Effect of Cingulate Gyms Stimulation on Nociceptive Discharge of Neurons in the Head of Caudate Nucleus of Rabbits 刺激兔扣带回对尾核头部痛相关单位电活动的影响
The destination goal of seepage calculation is solving hydraulic factor of seepage field such as seepage discharge, head pressure, compression force and hydraulic slope, analyzing seepage stability, selecting rational impervious design and drainage, or reinforcement design, effectively controlling seepage. 渗流计算的任务在于求解渗流场内的渗流量、水头、压力、坡降等水力要素,进行渗透稳定性分析,选择合理的防渗、排渗设计方案或加固补强方案,有效地控制渗流。
Because the specific speed of bulb turbine is higher than that of the francis turbine, the discharge and power of bulb turbine are larger when head and the diameter is same. 贯流式水轮机的比转速ns比混流式水轮机的高,在相同水头和相同直径的条件下,能通过较多流量,发出较大的功率。