pump delivery head

简明释义

泵的输出水头

英英释义

例句

1.During the test, we measured the actual pump delivery head against the theoretical values.

在测试过程中，我们将实际的泵的输送扬程与理论值进行了比较。

2.A higher pump delivery head is necessary for applications involving taller buildings.

对于涉及较高建筑物的应用，需要更高的泵的输送扬程。

3.The engineer calculated the pump delivery head to ensure the system would operate efficiently.

工程师计算了泵的输送扬程以确保系统能高效运行。

4.To determine the required pump delivery head, we need to consider the elevation differences in the pipeline.

要确定所需的泵的输送扬程，我们需要考虑管道中的高差。

5.The specifications state that the pump delivery head must be at least 50 meters.

规格说明中指出泵的输送扬程必须至少为50米。

作文

Understanding the concept of pump delivery head is essential for anyone involved in fluid mechanics or engineering. The term refers to the height to which a pump can raise water or any other fluid against gravity. It is a critical parameter in determining the efficiency and performance of a pumping system. When designing a pumping system, engineers must consider the pump delivery head to ensure that the pump can deliver the required flow rate at the desired pressure. The pump delivery head is influenced by several factors, including the type of pump used, the properties of the fluid being pumped, and the layout of the piping system. For instance, centrifugal pumps are commonly used in various applications due to their ability to generate high pump delivery heads. However, they may not be suitable for all types of fluids, especially those that are viscous or contain solids. In such cases, positive displacement pumps might be preferred as they can handle thicker fluids more efficiently.To calculate the pump delivery head, engineers often use the formula: H = P / (ρg) + z, where H is the total head, P is the pressure at the pump discharge, ρ is the fluid density, g is the acceleration due to gravity, and z is the elevation head. This equation highlights the importance of both pressure and elevation in determining the overall head produced by the pump.In practical applications, understanding the pump delivery head helps in selecting the right pump for a specific application. For example, in municipal water supply systems, pumps must deliver water to elevated reservoirs, requiring a significant pump delivery head. Similarly, in industrial processes, the pump delivery head must be sufficient to overcome the resistance in the piping system and deliver the fluid to the desired location.Moreover, the pump delivery head can also affect energy consumption. Pumps that operate at a higher head generally consume more energy. Therefore, it is crucial to optimize the system to achieve the necessary flow rate while minimizing energy usage. This optimization can involve adjusting the pump speed, changing impeller sizes, or redesigning the piping layout to reduce friction losses.In conclusion, the pump delivery head is a fundamental concept in the field of fluid dynamics and engineering. A thorough understanding of this term enables engineers and technicians to design effective pumping systems that meet the demands of various applications. By considering the factors that influence the pump delivery head, one can ensure the selection of appropriate pumps and achieve efficient system performance. As technology advances, new methods and tools continue to emerge, allowing for even greater precision in calculating and optimizing the pump delivery head for diverse industrial needs.

理解泵送扬程的概念对于任何参与流体力学或工程的人来说都是至关重要的。这个术语指的是泵能够将水或其他液体提升到多高以克服重力。这是确定泵送系统效率和性能的关键参数。在设计泵送系统时，工程师必须考虑泵送扬程，以确保泵能够在所需压力下提供所需的流量。泵送扬程受多个因素的影响，包括所使用的泵的类型、被泵送流体的特性以及管道系统的布局。例如，离心泵因其能够产生高的泵送扬程而广泛应用于各种场合。然而，它们可能并不适用于所有类型的流体，特别是那些粘稠或含有固体颗粒的流体。在这种情况下，正排量泵可能更为合适，因为它们可以更有效地处理较厚的流体。为了计算泵送扬程，工程师通常使用公式：H = P / (ρg) + z，其中H为总扬程，P为泵排放时的压力，ρ为流体密度，g为重力加速度，z为高度扬程。这个方程突显了压力和高度在确定泵产生的整体扬程中的重要性。在实际应用中，理解泵送扬程有助于选择适合特定应用的泵。例如，在市政供水系统中，泵必须将水输送到高架水箱，这需要相当大的泵送扬程。同样，在工业过程中，泵送扬程必须足够克服管道系统中的阻力，并将流体输送到所需位置。此外，泵送扬程还会影响能耗。运行在较高扬程下的泵通常会消耗更多的能量。因此，优化系统以在最小化能量使用的同时达到必要的流量至关重要。此优化可以涉及调整泵速、改变叶轮尺寸或重新设计管道布局以减少摩擦损失。总之，泵送扬程是流体动力学和工程领域的一个基本概念。对这一术语的透彻理解使工程师和技术人员能够设计出满足各种应用需求的有效泵送系统。通过考虑影响泵送扬程的因素，可以确保选择合适的泵并实现系统的高效性能。随着技术的进步，新的方法和工具不断涌现，使得在计算和优化不同工业需求的泵送扬程方面更加精确。