为了降低三缸单作用钻井泵的压力和排量波动，通常在排出管线上安装有空气包。
In order to reduce the fluctuation of pressure and discharge capacity of the triplex drilling pump, the air accumulator is often fixed on the discharge pipe.
在含水率较高的大排量浅井中，流体的惯性效应使设备负荷增加，并降低了泵效。
Fluid inertia effects increase equipment loading and reduce efficiency in high rate shallow Wells with high water production.
一旦工作压力降低，泵感应到压差增大，会自动增大斜盘角度增大排量，抓斗又处于工作状态。
When the pressure decreases, variable pump will detect this change and automatically increase the angle to augment flow capacity, which causes the grab back to normal working condition.
现场的实际应用情况说明，LB1600大排量螺杆泵采油系统与95泵、电泵相比，排量降低有限，节电效果明显。
The practical application of LB1600 large displacement screw pump systems showed that the displacement reducing are limited and energy-saving are effect compared with 95 pumps.
设计原理是减慢泵速、缩短冲程或改用小泵来降低排量，保持适当的沉没深度。
The design principle is to decrease the pump velocity, reduce stroke or to use a small pump to reduce the pump displacement and keep proper submersible depth.
设计原理是减慢泵速、缩短冲程或改用小泵来降低排量，保持适当的沉没深度。
The design principle is to decrease the pump velocity, reduce stroke or to use a small pump to reduce the pump displacement and keep proper submersible depth.
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