normally open valve

简明释义

常开阀

英英释义

例句

1.The irrigation system uses a normally open valve (通常开放阀) to allow water flow when the pump is off.

灌溉系统使用一个通常开放阀来在泵关闭时允许水流。

2.For safety reasons, the gas line is equipped with a normally open valve (通常开放阀) that automatically shuts when not in use.

出于安全原因，燃气管道配备了一个通常开放阀，在不使用时会自动关闭。

3.The pneumatic system is designed with a normally open valve (通常开放阀) to maintain air circulation.

气动系统设计有一个通常开放阀以保持空气循环。

4.In fire protection systems, a normally open valve (通常开放阀) ensures that water is available immediately in case of an emergency.

在消防系统中，通常开放阀确保在紧急情况下水源立即可用。

5.When testing the pressure, make sure the normally open valve (通常开放阀) is functioning correctly.

测试压力时，请确保通常开放阀正常工作。

作文

In the world of engineering and fluid dynamics, understanding the function and application of various components is crucial. One such component is the normally open valve, which plays a significant role in controlling the flow of fluids in various systems. The term normally open valve refers to a type of valve that remains open under normal conditions and only closes when an external force or condition is applied. This feature makes it particularly useful in applications where continuous flow is necessary unless a specific action is taken to stop it.For instance, in irrigation systems, a normally open valve allows water to flow freely to crops when the system is activated. When maintenance is required or if there is a malfunction, the valve can be closed to prevent water wastage and ensure that the system operates efficiently. This principle of operation is essential in many automated systems where reliability and safety are paramount.Moreover, the normally open valve is commonly used in safety systems. For example, in gas supply lines, these valves are designed to remain open to allow gas flow during normal operations. However, in the event of a leak or other emergency, the valve can be closed automatically to prevent hazardous situations. This automatic closure is often achieved through the use of sensors that detect changes in pressure or flow, triggering the valve to shut.The design and materials used in a normally open valve are also critical factors that engineers must consider. These valves can be made from various materials, including metals and plastics, depending on the application and the type of fluid being controlled. The choice of material affects not only the valve’s durability but also its resistance to corrosion and temperature changes, which can significantly impact its performance over time.Furthermore, the size and specifications of a normally open valve must match the requirements of the system in which it is installed. Engineers must calculate the appropriate dimensions to ensure optimal flow rates while maintaining pressure levels within the system. This careful consideration helps prevent issues such as cavitation, which can damage valves and other components.In conclusion, the normally open valve is a vital component in various engineering applications, providing essential control over fluid flow. Its ability to remain open under normal circumstances while allowing for quick closure in emergencies makes it invaluable in enhancing safety and efficiency. Understanding how these valves operate and their appropriate applications is fundamental for engineers and technicians working in fields related to fluid dynamics and system automation. By mastering the concept of the normally open valve, professionals can design better systems that meet both operational and safety standards effectively.

在工程和流体动力学的世界中，理解各种组件的功能和应用至关重要。其中一个组件是常开阀门，它在控制各种系统中的流体流动方面发挥着重要作用。术语常开阀门指的是一种在正常条件下保持打开状态的阀门，只有在施加外部力或条件时才会关闭。这一特点使其在需要持续流动的应用中非常有用，除非采取特定的措施来停止流动。例如，在灌溉系统中，常开阀门允许水在系统启动时自由流向作物。当需要维护或出现故障时，可以关闭阀门以防止水浪费，并确保系统高效运行。这种操作原理在许多自动化系统中至关重要，其中可靠性和安全性是重中之重。此外，常开阀门通常用于安全系统。例如，在燃气供应管道中，这些阀门在正常操作期间设计为保持打开状态，以允许气体流动。然而，在发生泄漏或其他紧急情况时，阀门可以自动关闭，以防止危害情况的发生。这种自动关闭通常通过检测压力或流量变化的传感器实现，从而触发阀门关闭。常开阀门的设计和所用材料也是工程师必须考虑的关键因素。这些阀门可以由各种材料制成，包括金属和塑料，具体取决于应用和所控制流体的类型。材料的选择不仅影响阀门的耐用性，还影响其对腐蚀和温度变化的抵抗能力，这可能会显著影响其长期性能。此外，常开阀门的尺寸和规格必须与其安装的系统的要求相匹配。工程师必须计算适当的尺寸，以确保最佳流速，同时保持系统内的压力水平。这种细致的考虑有助于防止诸如气蚀等问题，这可能会损坏阀门和其他组件。总之，常开阀门是各种工程应用中的重要组件，为流体流动提供了必要的控制。它在正常情况下保持打开状态，同时在紧急情况下能够快速关闭的能力，使其在提高安全性和效率方面具有不可替代的价值。理解这些阀门的操作方式及其适当的应用对于从事流体动力学和系统自动化相关领域的工程师和技术人员至关重要。通过掌握常开阀门的概念，专业人员可以设计出更好的系统，有效满足操作和安全标准。