All About Flow Meters: Uses, Types, and How to Choose One

Some industries require using a device to measure the flow rate or quantity of a fluid. What they often use are flow meters. It monitors, controls, and optimizes various fluid transportation processes.

Here are some of the industries that use flow meters:

  • Automotive
  • Chemical processes
  • Construction
  • Energy and power generation
  • Food and beverage
  • HVAC
  • Water and wastewater treatment
  • Oil and gas industry
  • Pharmaceuticals
  • Textile industry

Understanding the Flow Sensor Process

There are different types of flow sensors being used today. The Pinch flow meter is mainly divided into three parts – main instrument, sensor, and transmitter. The substance passes through the sensor, to record its volume and mass per minute. The signal is then read by the transmitter which will provide the measurement result.

Flow Sensors

Types of Flow Sensors

There are different types used for various purposes. The type of use depends on several factors. Understanding the different types of flow sensors will make it easier for you to choose one:

  • Differential Pressure Flow Meter. This creates a pressure drop in the fluid. It is used to compare the pressures upstream and downstream. This is commonly used in air conditioning systems and industrial processes.
  • Turbine Flow Meter. This works similarly to the windmill. The turbine starts to rotate as the liquid flows. The rotation speed should be the same as the flow rate. This is often used in water services, irrigation systems, and fuel.
  • Electromagnetic Flow Meter. This device uses electromagnetic force to measure flow. This is often used in water treatment, chemical processes, and wastewater management.
  • Ultrasonic Flow Meter. It uses ultrasonic waves to detect flow. It measures the time it takes for the wave frequency to go upstream and downstream. This is especially suitable for large pipes and conduits.
  • Vortex Flowmeter. This uses the “rotation” method during the flow process. These flow meters are good at measuring gas flow. It is used in air conditioning systems, chemical plants, and beer brewing.

Choosing a Flow Meter: Which is Best to Use?

The right flow meter can greatly affect the processes in which it will be used. Make sure that you look into the key factors before you decide. This includes the fluid type, flow range, accuracy, and pipe size. Also consider the fluid properties – temperature, pressure, viscosity, and conductivity. Take the time to look into the installation requirements. Ensure that the flow meter technology of the device matches the application. It must be compatible with the process.

  1. 關於流量計：用途、類型以及如何選擇

有些行業需要使用設備來測量流體的流速或數量。他們常用的是流量計。它監視、控制和優化各種流體輸送過程。

以下是一些使用流量計的行業：

  • 汽車
  • 化學工藝
  • 建築業
  • 能源和發電
  • 食品和飲料
  • 暖通空調
  • 水和廢水處理
  • 石油和天然氣產業
  • 醫藥品
  • 紡織業

了解流量感測器流程

目前使用的流量感測器有多種類型。這 夾管式流量計 主要分為三大部分－主機儀表、感測器、傳送器。物質通過感測器，記錄其每分鐘的體積和質量。然後發射器讀取訊號，提供測量結果。

流量感測器的類型

有不同的類型用於不同的目的。使用類型取決於幾個因素。了解不同類型的流量感測器將使您更輕鬆地選擇一種：

  • 差壓流量計。這會在流體中產生壓力降。它用於比較上游和下游的壓力。這通常用於空調系統和工業製程。
  • 渦輪流量計。這與風車的工作原理類似。當液體流動時渦輪開始旋轉。轉速應與流量相同。這通常用於供水服務、灌溉系統和燃料。
  • 電磁流量計。該裝置利用電磁力來測量流量。這通常用於水處理、化學製程和廢水管理。
  • 超音波流量計。它使用超音波來檢測流量。它測量波頻率向上和向下移動所需的時間。這尤其適用於大型管道和導管。
  • 渦街流量計。這在流動過程中採用了「旋轉」的方法。這些流量計擅長測量氣體流量。它用於空調系統、化工廠和啤酒釀造。

選擇流量計：哪種最好用？

正確的流量計可以大大影響其使用過程。在做出決定之前，請務必先研究關鍵因素。這包括流體類型、流量範圍、精度和管道尺寸。也要考慮流體特性 – 溫度、壓力、黏度和電導率。花時間研究安裝要求。確保設備的流量計技術與應用相符。它必須與流程相容。