downcomer

简明释义

英[ˈdaʊnˌkʌmə(r)]美[ˈdaʊnˌkʌmər]

n. 下水管

英英释义

单词用法

同义词

反义词

例句

1.A large majority of ash slag contained in the gas sinks to the liquid tank through an outlet at the tail end on the bottom of the downcomer due to the inertia action.

气体中所含的大部分灰渣由于惯性作用，通过下降管底部的末端出口沉入液池。

2.The three dimensional distribution of gas holdup in segment downcomer has been measured by using the capillary probe and the photoelectrical detect technique.

采用毛细管光电检测技术，测定了弓形降液管内气含率的三维分布。

3.In order to research its natural circulation, the downcomer part and the riser part is distinguished, where there are no mass and energy transferred between them.

该模型为体现其自然循环的特性，将下降段与上升段区分开，并假定两者之间不存在质量和能量的交换。

4.The steel ring degree of the produced plastic steel downcomer is doubled to be increased, and the quality rises to a higher step than before.

生产的塑钢下水管其钢环度增加几倍，在质量上比以前上了一个台阶。

5.In flow visualization experiment, it is found that flow rate of safety injection has major effect on flow regime in downcomer.

通过流动可视化实验，得到了安注流速，下降环腔流速以及含气率对环腔内流动形态的影响。

6.The study on flow and heat transfer in downcomer under loss of coolant accident (LOCA) is important to the safety of reactor pressure vessel (RPV).

失水事故工况(LOCA)下反应堆下降环腔内的流动和传热研究，对反应堆压力容器(RPV)的安全具有重要的意义。

7.The band steel coarseness processor can be easily arranged on the plastic steel downcomer production line without changing the operating condition of the production line.

可以很容易的安装在塑钢下水管生产线上，不改变生产线的运行现状。

8.The key factors for designing the tray with high liquid capacity are downcomer configuration, specifications and layout.

为了通过高液量，塔板设计的关键是降液管结构、尺寸和布置。

9.The engineer specified that the downcomer (下行管) must be made of corrosion-resistant materials.

工程师规定，downcomer（下行管）必须由耐腐蚀材料制成。

10.During the installation, we noticed that the downcomer (下行管) was not aligned properly.

在安装过程中，我们注意到downcomer（下行管）没有正确对齐。

11.The building's plumbing system includes a main downcomer (下行管) for efficient drainage.

这栋建筑的管道系统包括一个主downcomer（下行管），以实现高效排水。

12.We need to check the pressure in the downcomer (下行管) to ensure it meets safety standards.

我们需要检查downcomer（下行管）的压力，以确保符合安全标准。

13.The downcomer (下行管) plays a crucial role in the overall efficiency of the heating system.

downcomer（下行管）在供暖系统的整体效率中起着至关重要的作用。

作文

In the world of construction and architecture, the term downcomer refers to a vertical pipe or duct that is used to conduct water or air downwards from an upper level to a lower level. This component is crucial in building design, especially for drainage systems and ventilation. Understanding the role of a downcomer can help us appreciate the intricate systems that keep our buildings safe and functional. For instance, when it rains, water collects on the roof of a building. Without an effective drainage system, this water could cause damage over time. Here is where the downcomer comes into play. It channels the rainwater from the roof down to the ground, preventing overflow and potential leaks into the building. A well-designed downcomer system not only protects the structure but also ensures that the surrounding landscape remains intact. Moreover, downcomers are not just limited to water drainage. In HVAC (Heating, Ventilation, and Air Conditioning) systems, they are used to transport air from higher levels to lower levels efficiently. This is particularly important in tall buildings where maintaining air quality and temperature control is vital. The engineering behind a downcomer must account for factors such as airflow resistance and the physical properties of the materials used. The importance of downcomers extends beyond functionality; they also contribute to the aesthetic of a building. Architects often integrate these elements into their designs, ensuring they blend seamlessly with the overall look of the structure. A well-placed downcomer can enhance the visual appeal while serving its practical purpose. In urban areas, where space is limited, the design and placement of downcomers become even more critical. Engineers must work closely with architects to ensure that these structures do not obstruct walkways or create hazards. Innovative designs can allow for downcomers to be hidden within walls or integrated into the building's facade, showcasing the balance between form and function. Furthermore, the maintenance of downcomers is essential for their longevity and effectiveness. Regular inspections can prevent blockages caused by debris, which can lead to significant issues if not addressed. Building managers often implement routine checks to ensure that all downcomers are clear and functioning properly, safeguarding the building against water damage and ensuring optimal air circulation. In conclusion, the term downcomer encompasses a vital aspect of modern architecture and engineering. Whether in the context of water drainage or air circulation, understanding the role of downcomers helps us appreciate the complexity and thoughtfulness involved in building design. As cities continue to grow and evolve, the importance of effective downcomers will remain a key consideration for architects and engineers alike. Their ability to combine functionality with aesthetics makes them an indispensable part of any structure, highlighting the intricate interplay between engineering and design in our built environment.

在建筑和建筑设计的世界里，术语downcomer指的是一种垂直管道或通风道，用于将水或空气从上层向下层导引。这个组件在建筑设计中至关重要，尤其是对于排水系统和通风系统。理解downcomer的作用可以帮助我们欣赏维持建筑安全和功能的复杂系统。 例如，当下雨时，水会在建筑物的屋顶上积聚。如果没有有效的排水系统，这些水随着时间的推移可能会造成损坏。这时，downcomer就派上用场了。它将雨水从屋顶引导到地面，防止溢出和潜在的漏水问题。一个设计良好的downcomer系统不仅保护建筑结构，还确保周围景观保持完好。 此外，downcomers不仅限于水的排放。在暖通空调（HVAC）系统中，它们用于有效地将空气从高处运输到低处。这在高层建筑中尤为重要，因为保持空气质量和温度控制至关重要。downcomer的工程设计必须考虑空气流动阻力和所用材料的物理特性等因素。 downcomers的重要性不仅体现在功能上；它们也为建筑的美学做出了贡献。建筑师常常将这些元素融入他们的设计中，确保它们与整体结构的外观无缝融合。一个恰当放置的downcomer可以增强视觉吸引力，同时发挥其实际用途。 在城市地区，空间有限时，downcomers的设计和放置变得更加重要。工程师必须与建筑师密切合作，以确保这些结构不会妨碍人行道或造成危险。创新的设计可以使downcomers隐藏在墙内或融入建筑的外立面，展示形式与功能之间的平衡。 此外，维护downcomers对其长期有效性至关重要。定期检查可以防止因碎片造成的堵塞，如果不加以处理，可能会导致重大问题。建筑管理者通常会实施例行检查，以确保所有downcomers畅通无阻并正常运作，从而保护建筑免受水损害，并确保最佳的空气循环。 总之，术语downcomer涵盖了现代建筑和工程的一个重要方面。无论是在排水还是空气循环的背景下，理解downcomers的作用有助于我们欣赏建筑设计中所涉及的复杂性和深思熟虑。随着城市的不断发展和演变，有效的downcomers的重要性将始终是建筑师和工程师考虑的关键因素。它们将功能与美学相结合的能力，使它们成为任何结构不可或缺的一部分，突显了我们建成环境中工程与设计之间错综复杂的相互作用。