owing to poor lubricity of water, the design of friction pairs in water hydraulic piston pump encounters a lot of problems.
由于水的润滑性很差,因此水液压柱塞泵的摩擦副设计是个难题。
hydraulic piston pump supplies energy for the lift of downhole liquid by the hydraulic pressure.
泵 是一种依靠液体压力传递能量的抽油系统。
compared to the common slipper friction pairs, a designed multi-cavity individual bearing slipper of water hydraulic piston pump has better anti-turnover ability and lubrication characteristics.
水压柱塞泵多腔独立支承滑靴副比普通滑靴副的抗倾覆能力更强,具有更好的润滑特性。
in chapter 2, a fixed high pressure single-phase water mist fire suppression system driven by water hydraulic piston pump is developed.
第二章,研制了由纯水液压柱塞泵驱动的固定式高压单相流细水雾灭火系统。
at the initial stage of development, the main oil production methods give priority to hydraulic piston pump and closed hot water circulation.
开发初期,主导开采方式主要以「水力活塞泵、闭式热水循环」等采油工艺为主。
a water mist fire suppression system driven by water hydraulic piston pump is developed and the water hydraulic parts are successfully applied in fire-fighting field.