查询词典 jockey pump

The test bedstand which is composed of electro-motor hydraulic pump hydraulic motor speed verily box and parallel compensating pump can resolve the problem of power consumption and the power warm while large power hydraulic pump and motor testing.the principle of system is that electro-motor drive the hydraulic pump firstthen the pump make the hydraulic motor work through its high pression oilthe follow working hydraulic motor feedback the power in niuju re-drive the hydraulic pumpat last the power is recovered.this bedstand make use of bishi hydraulic system which can have a closely construct and steadly chuandong lower noise high power recovery percentage and so on.

本实验台由电动机、油泵、油马达和变速箱以及并联补油泵等一起构成功率反馈实验油路，以解决大功率液压泵及马达在试验时的大功率消耗和能量耗散时的发热问题。实验台由电动机带动油泵，油泵输出油液驱动液压马达，油马达输出的扭矩通过变速箱传动回馈给液压泵的输入轴，从而实现功率回收。采用闭式液压系统，结构紧凑、运行平稳、噪声低、功率回收率高；机械补偿，电动机输入扭矩经变速箱传动驱动液压泵；液压补偿，并联补油泵对系统的高压油路进行流量补偿。

Main selling products: laminated pot; sterilization pot; warm water tank; stainless steel tank; heterogeneous machines; Colloid Mill; double-effect concentrator; Vacuum Degasser; cleaning system; ingredients tank; fermentation tank; dilute with tank; reaction vessel; None bacteria tank; hot and cold cylinder; of sugar pot; frame filter; milk cans; deployment tank; double-filter; diatomaceous earth filter; microporous membrane filter; titanium rod filter ; Quartz sand filter; ultra-high temperature instantaneous sterilizer; sand filter rod; activated carbon filters; warm water tank; hollow fiber ultrafiltration; stainless steel self-priming pump; stainless steel sanitation pumps; milk pump; beverage pump; explosion-proof health pump; Stainless steel centrifugal pump; screw; energy-saving oven

主要销售产品：夹层锅；杀菌锅；保温水箱；不锈钢罐；均质机；胶体磨；双效浓缩器；真空脱气机；清洗系统；配料罐；发酵罐；稀配罐；反应釜；无菌贮罐；冷热缸；化糖锅；板框过滤器；奶罐；调配罐；双联过滤器；硅藻土过滤器；微孔膜过滤器；钛棒过滤器；石英砂过滤器；超高温瞬时灭菌机；砂棒过滤器；活性炭过滤器；保温水箱；中空纤维超滤；不锈钢自吸泵；不锈钢卫生泵；奶泵；饮料泵；防爆卫生泵；不锈钢离心泵；螺杆泵；节能烘箱

In order to do research on pipe flow and pump characteristics of polymer flooding and water flooding rod-pumped well in especially high water-cut stage, rheometric test aimed at production stream from polymer flooding and water flooding rod-pumped well in especially high water-cut stage has been made, and the characteristic of production stream in especially high water-cut stage is confirmed as Newtonian fluid. Experiments using different mediums about pipe flow and pump characteristics is made. Frictional resistance and coefficient of friction resistance of annulus fluid between sucker rod and the pipe flow is calculated under different working conditions. Frictional resistance between plunger and pump barrel under different parameters is calculated based on related theory of pump characteristic and the strained analytical model of oil-well pump. Besides, using the theory of slit flow and hydraulic -clamping pressure, the frictional resistance is calculated, and the error between the result and measured value is no more than 13%.

为研究特高含水期水驱及聚驱抽油机井管流特性与泵特性，本文针对特高含水期水驱及聚驱井采出液进行了流变性试验，确定了特高含水期油井采出液的性质属牛顿流体；利用不同介质，进行管流特性与泵特性试验，得到了不同工况下杆、管环空流的摩擦阻力和摩阻系数；根据泵特性相关理论和抽油泵受力分析模型，计算了不同参数下柱塞与泵筒间的摩擦阻力，并利用缝隙流与液压卡紧力理论对柱塞与泵筒间的摩擦阻力进行了计算，计算结果与实测值误差在13%以内。

The structure brief introduction the dense thick liquid pump of one stud of i-1b s series is formed by four parts electromotor , shaft coupling , pump and bases motive force joining in marriage usefulness uses y s series asynchronous electromotor of three-phase the shaft coupling uses the water pump with the paw mould elasticity shaft coupling the pump by the pump shell , become hollow inside axle and universal twists joints and winds axle , stud , bush and axle seal and package places and goes out the material mouth etc and forms , and the section of stud is the oval for round and bush section , and his interior surface is the duplexing spirals faces .

结构简介 i-1b系列单螺杆浓浆泵由电动机、联轴器、泵和底座四个部分组成。配用的动力采用y系列三相异步电动机。联轴器采用水泵用爪型弹性联轴器。泵由泵壳、空心轴、万向绞接头、绕轴、螺杆、衬套、轴封装置和出料口等组成，螺杆的断面为圆形、衬套断面为椭圆形，其内表面为双螺旋面。

For the stability of the flow metering pumps, metering pump flow rate, as some big changes with pressure, you can set the exit of metering pump back-pressure valve, so that the output of metering pump flow rate stability, and then usually selected back-pressure valve The Reducing Valves pressure of the actual use of a metering pump metering pump pressure or slightly less than the use of pressure.

用于稳定计量泵的流量，如某些计量泵的流量随压力变化较大，可在计量泵的出口处设置背压阀，使计量泵的输出流量稳定，这时一般选择背压阀的压力为计量泵的实际使用压力或略小于计量泵的使用压力。

The failure characteristics of large pump units are that the influence is great, the reasons are complicated, it is difficult to observe and the failure rate is hard to determine. The main failures of large pump units are as follows: burn out of thrust bearing liner of the motor, failure of stator and rotor coil insulation of the motor, wear-and-tear of guiding bearing and shaft neck of the pump, breakdown of adjusting mechanism of the pump blade, and pump cavitation. The reasons of main failures are studied in design, structures, installation and operation etc.

分析了大型水泵机组故障的特点：影响大、原因复杂、隐蔽性强和故障率确定难；确定了主要故障形式：电机推力瓦烧损，电机线圈绝缘失效，水泵导轴承及轴颈磨损，叶片调节机构失效，水泵汽蚀；从设计、结构、安装和运行等方面研究了主要故障的原因。

Pump cover structural design unique claw-type flexible coupling as long as the discharge, pump cap nut, you can remove the bearing is very light, pump cover, pump shaft, impeller and other assemblies, replacement of mechanical seals and impeller, without having to dismantling motor, pump and pipelines, maintenance convenient.

泵盖结构设计独特，只要卸下爪型弹性联轴器、泵盖螺母，即可十分轻便取出轴承座、泵盖、泵轴、叶轮等组合件，进行更换机械密封和叶轮，而不必拆卸电机、泵体和管道，维修方便快捷。

It is could be concluded that the larger pump impeller diameter may obviously increase the efficiency of both conduit and pump system; increasing pump diameter and decreasing its rotational speed is consistent with reducing nD value.It is suitable to pump system with low head to choose lower nD value, so as a hydraulic model of axial flow pump with the better hydraulic characteristics could be obtained.

结果表明：选取较大的水泵叶轮直径将显著提高流道效率和泵装置效率；&增径降速&与降低nD值是一致的；在泵装置扬程较低的情况下，选取较小的nD值便于选用到水力性能较好的轴流泵水力模型。

At present, the seal-type multi-stage vacuum pump is the most widely used access technology, a pump, it can be used as a separate low-vacuum equipment to the exhaust pump, it can be used as high-vacuum exhaust pump, when the first class, formed into a high demand for multi-stage pump.

目前，油封式多级泵是国内真空获得技术中应用最广的一种泵，它可单独用作低真空设备的排气用泵，也可用作高真空排气时的前级真空泵，组成成高要求的多级泵。

The pump rotor shaft and motor are installed vertically, pump inlet at the top of the lower part of the exhaust port at the pump, pump casing with a water-cooled units, to reduce the pump bearings and seal at the temperature.

泵的转子轴及电机均为竖直安装，泵进气口在上面，排气口在泵下部，泵壳带有水冷套，以降低泵轴承及轴封处的温度。

Although translator has turned from being a crystal ball by which the original culture can unrestrainedly penetrate to another crystal ball by which the target culture can freely traverse, the translator's personal embodiment, in the process of cognitive act, are still absent in translation studies. Translators are still subjects without body or simply disembodied subjects.

译者虽然由原语文化可以自由穿透的玻璃球变成了译语文化可以自由穿越的玻璃球，但译者认知过程中的个体体验在翻译研究中依然缺席，译者依然仅仅是一个没有躯体体验的主体。

Chillingly, he claimed our technology is 'not nearly as sophisticated' as theirs and "had they been hostile", he warned 'we would be been gone by now'.

令人毛骨悚然的，他声称我们的技术是'并不那么复杂，像他们一样，和"如果他们敌意"，他警告说，'我们将现在已经过去了。