如何选择正确的冷却风扇188体育在线官方188d金宝搏的网址
在许多设备和系统中,热量的积聚会导致性能降低,过早恶化的组件和材料以及增加的安全风险。由于这些原因,许多设备利用冷却风扇消散热量积聚,并避免这些潜在的昂贵后果。金宝搏188是什么公司188体育在线官方188d金宝搏的网址
由于冷却风扇188d金宝搏的网址188体育在线官方金宝搏188是什么公司在各种产品中都使用,因此它们具有各种设计和配置,可满足不同的应用要求和限制。尽管这种广泛的选择使产品设计师和工程师可以找到满足其确切需求的组件,但找到合适的组件也更具挑战性。以下文章是读者的有用选择指南,概述了为特定应用程序选择冷却风扇时要遵循的步骤。188体育在线官方188d金宝搏的网址
这Cooling Fan Selection Process
Step 1: Perform a Thermal Analysis
这first step in the cooling fan selection process is performing a thermal analysis. A thermal analysis determines the amount of heat generated inside a particular piece of equipment or during a particular process. The result can be used to calculate the volume of air needed to cool the device or system.
这rmal analysis operations use sensors and other instruments to determine the source(s) of heat and the amount of heat generated by each source. The heaviest consumers of power and, consequently, the biggest contributors to heat dissipation are often components like microcontrollers, processors, FPGAs, and MOSFETs. Once the necessary information is obtained, the amount of airflow required to cool the device or system can be calculated. Afterward, the cooling air path can be mapped using sensors and software to ensure that all major heat sources receive the air needed to cool them sufficiently.
Step 2: Determine the System Impedance
进行热分析并计算所需的空气体积后,冷却风扇选择过程的下一步是确定系统阻抗。188体育在线官方188d金宝搏的网址系统阻抗是指随着风扇的入口通风孔和排气通风口之间的空气行驶时所经历的压降的总和。如果系统具有多个空气路径,则添加单个阻抗值。可以通过压力传感器或将系统放入空气室中的不同气流速率来测量该值。
步骤3:选择风机的类型
After the system impedance is identified, it can be used with the calculated airflow requirement to gauge the static pressure needed for the system. This information can then be utilized to determine which fan will serve as the best solution.
188d金宝搏的网址188体育在线官方金宝搏188是什么公司根据空气流过它们的方式,冷却风扇分为两类。
- 轴向fanshave air enter and exit in the same plane. Similar to an airplane propeller, they have blades that generate aerodynamic lift and pressurize the air. They can provide high airflow and are ideal for applications involving relatively low static pressure.
- Centrifugal fans让空气进入一架飞机,然后退出另一个飞机。他们具有旋转的叶轮,其叶片会增加空气流的速度并将其转化为压力。它们可以产生高压力,适合涉及恶劣条件(例如潮湿或肮脏的气流)的应用。
在这两个粉丝设计之间选择时要考虑的一些因素是:
- Pressure
- Airflow rate
- 效率率
- 空间约束
- Noise generation
- 驱动器配置
- 工作温度范围
- Operating environment range
- Cost
- Delivery time
- Availability
步骤4:最终考虑
除上述内容外,选择系统的冷却风扇时要记住的其他考虑因素包括:188体育在线官方188d金宝搏的网址
- 集成速度控制:以快速速度连续运行的粉丝将很快磨损。Integrating speed control elementsthat alter the speed of the fan when needed can significantly increase the overall service life of a unit.
- Incorporating performance monitoring circuits:Performance monitoring circuits track fan performance to identify potential malfunctions before they occur.
- 建立维护时间表/程序:无论您选择哪种风扇,都必须为其创建和实施维护时间表。否则,该设备可能会意外分解。基本的维护程序应涵盖以下内容:轴承,皮带和滑轮,泄漏,运动状况和系统清洁。
Quality Cooling Fans From Pelonis Technologies, Inc. (PTI)
Need additional assistance selecting a cooling fan for your application? Ask the experts at PTI! At Pelonis Technologies, Inc., we have developed and manufactured specialty cooling products for commercial and industrial operations for over 25 years. We have the knowledge and skills to answer any questions you may have and find the product that suits your exact needs.Contact us今天开始解决您的解决方案。