
【化】 positive displacement pump
“排代泵”这一名称并非标准术语,可能为“容积式泵”(Positive Displacement Pump)的误写或非规范表述。以下结合相关文献资料,解释其核心概念及工作原理:
容积式泵是一种通过机械运动改变泵腔容积,从而强制输送流体的泵类。其核心特点是依靠密闭空间的容积变化实现吸排液体,而非依赖离心力。常见类型包括活塞泵、齿轮泵、隔膜泵等。
与提到的离心泵(依靠叶轮旋转产生离心力)不同,容积式泵具有以下特点:
主要用于石油化工、食品加工等领域输送高粘度液体,或需要高压、小流量精密控制的工况。
如需进一步了解具体泵型的技术参数,可查阅相关行业标准或制造商手册。
排代泵(pái dài bèng)是一种用于输送高黏度介质和固体颗粒等物质的机械设备,广泛应用于化工、食品、医药等领域。
The English translation for 排代泵 is Progressive Cavity Pump.
The pronunciation of Progressive Cavity Pump is [prəʊˈɡresɪv ˈkeɪvəti pʌmp].
Progressive Cavity Pump is an industrial pump used to transport high viscosity fluids such as food products, chemicals, and pharmaceuticals. It operates using a rotor-stator principle where a helical shaped rotor turns inside a stator that has a double helix cavity.
Negative Displacement Pump(负位移泵)is the opposite of Progressive Cavity Pump. While Progressive Cavity Pumps use a rotor-stator principle, Negative Displacement pumps use other principles, such as centrifugal force or reciprocation, to move fluids.
The term "progressive cavity pump" has a medium level of common usage in technical and engineering terminology. However, the abbreviation "PCP" is commonly used in the oil and gas industry to refer to "Progressing Cavity Pump".
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