泵

When the piston to the left side starting from the right end of the move, filled with fluid by squeezing the pump, the suction valve closed, and open the pressure valve and the discharge, this process is known as the process of pressurized water pump.

当活塞从右端开始向左端移动时，充满泵的流体受挤压，将吸水阀关闭，并打开压水阀而排出，此过程称为泵的压水过程。

In order to prevent damage to the pump must pump discharge pipe into the suction pipe installed between the safety valve.

为了防止泵的损坏，必须在泵的排出管到吸入管之间安装安全阀。

Submersible pump works Open-pump before the suction pipe and pump to be filled with fluid.

一、潜水泵的工作原理开泵前，吸入管和泵内必须充满液体。

Pump suction pipe and a liquid plus a stent must not be used for pump support.

泵的吸进和没液管道必需另减收架。没有失用泵做支持。

B. water-filled Pump start before the pump casing and suction pipe must be full of water that is because of the presence of air vacuum pumping the population can not be formed and maintained.

b。陈籍水泵在启动以前，泵壳和吸水管内必须先布满水，这是因为有空气存在的情况下，泵吸人口真空无法形成和保持。

5The relation between the self-priming time and the diameter of suction pipe is modified.The above results can be used to direct the design of self-priming pumps and improvement of self-priming performance.

上述研究结果可以作为自吸泵设计的参考，为改善自吸泵的自吸性能提供了全面的参考依据。

This is because the adjustment of the pump suction pipe and installation height, work volume, high cost of construction, and by the construction of environmental constraints, and only in the device when the parking or large maintenance be carried out; the same time, due to process conditions, the adjustment of the pump suction pipe and install a high degree of turn affect the follow-up process, with a knock-on effect.

这是因为调整泵的吸入管路及安装高度，工程量大、施工费用高，并且受施工环境的制约，只有在装置停车或大检修时才能进行；同时，由于工艺条件的限制，调整泵的吸入管路及安装高度又将影响后续工艺，具有连锁反应。

Installed with trolley, electrical startup box, cables, fast connector and suction/drainage hose, this pump may used as movable pump.

本型泵可配套小车、电起动箱、电缆、进出口快速接头、吸排软管等，可作为移动式泵使用。

With the rotating screw and mesh, these seals in the pump suction space evolving, the suction chamber in which liquid enclosure and along the screw axis from the inhalation of room to move continuously push exhaust side, will be closed in the space been discharged in the liquid, like a nut when the screw rotation continued to move forward is the case, this is the basic principle of the screw pump.

随着螺杆的转动和啮合，这些密封空间在泵的吸入端不断形成，将吸入室中的液体封入其中，并自吸入室沿螺杆轴向连续地推移至排出端，将封闭在各空间中的液体不断排出，犹如一螺母在螺纹回转时被不断向前推进的情形那样，这就是螺杆泵的基本工作原理。

The pumps with different structural parameters are simulated numerically using k-ε model and wall functions. The results showed that the number of nozzles, the nozzle angle and the nozzle-to-throat clearance have a great influence on the performance of jet pump, and the turbulent kinetic energy is greater in suction chamber and in inlet of throat.

采用k-ε湍流模型和壁面函数法对不同参数下的多喷嘴射流泵进行了数值模拟，模拟结果表明，喷嘴数和喷嘴角度及喉嘴距对射流泵工作性能影响较大；在吸入室及喉管入口处湍动能较大。

I will endeavour to find you some assistance.

我尽力帮你找人帮忙。

At first I only know bruck is the idol of American younglings, afterwards I returned back to Taiwan ,even in Beijing last year ,I saw her poster everywhere, I was so surprised at her charm.

起初我只晓得布鲁克雷德丝是美国少男少女崇拜的偶像，后来回台湾，甚至去年在北京，居然也四处看见她的海报，才惊讶她的魅力之大。