Fuel flow meter, as a key device used to measure the fuel flow in the system, plays an indispensable role in many fields. Whether it is in the modern automotive field, it is of key significance to accurately control the fuel injection volume to improve engine efficiency and reduce fuel consumption. In aerospace, accurate fuel flow measurement is critical to flight safety and range planning. Or in the maritime industry, the precise control of ship fuel consumption can greatly affect operating costs and sailing efficiency; Even in a wide range of industrial environments, from large power plants to fine chemical production, accurate fuel flow measurement is critical to optimizing the performance of the entire production process, closely monitoring fuel consumption, and ensuring the overall efficient operation of the system. The core mission of fuel flow meters is to provide timely and accurate real-time data on fuel use, thus giving operators enough information to make scientific, rational and informed decisions in fuel management. ​

Operating principle

The fuel flow meter mainly works according to the following important principles: The flow measurement principle, the core is to use the displacement of fuel or flow speed to accurately determine the fuel flow value through the system. There are many different types of fuel flow meters, each with a unique mechanism of operation, but their common primary goal is to consistently produce accurate and reliable measurement results. ​

1. Positive displacement table

The positive displacement meter belongs to one of the fuel flow meters with a long history and high reliability. Such meters make clever use of a series of carefully designed chambers or meshing gears. Each time these chambers or gears complete a rotation during operation, a specific volume of fuel can be precisely captured and replaced. As fuel continues to move steadily through these particular chambers, the cumulative amount of fuel transferred directly corresponds to the amount of fuel passing through the meter. Known for its excellent accuracy, positive displacement meters are often widely used in special application scenarios where precise measurement is extremely demanding, such as some high-precision scientific research experimental devices or high-end engine test platforms that require near-extreme fuel consumption control.

2.Turbine table

The operation of the turbine table is based on the basic principle that the flow of fluid through the turbine blades causes the turbine body to rotate. Among them, there is a clear proportional relationship between the rotation speed of the turbine and the flow rate of the fuel. In particular, by precisely measuring the speed of the turbine, the fuel flow meter can calculate the volume of fuel passing through the system based on pre-set mathematical models and physical relationships. Turbine watch has been widely used in aerospace and industrial production environment due to its advantages of compact structure design and stable and reliable operation. In the aviation field, it is widely used in the flow monitoring and control of aircraft engine fuel supply system to ensure accurate fuel supply during flight. In the industrial field, such as pipeline fuel flow monitoring in the petrochemical industry, turbine meters can work stably in complex and harsh industrial environments for a long time, escorting the safe and stable operation of the production process. ​

3. Ultrasonic flow meter

Ultrasonic flow meter is to make full use of ultrasonic propagation characteristics in the medium to measure the speed of fuel through the pipeline. This type of instrument is mainly composed of sensors that can emit ultrasonic signals of a specific frequency. The working principle is to measure the time difference between the ultrasonic signal in the pipeline to the upstream and downstream respectively, and then calculate the flow speed of the fuel according to the relevant physical formula, and further calculate the flow value of the fuel. The most outstanding feature of the ultrasonic flow meter is its non-invasive measurement method, which makes it able to complete the flow measurement work without destroying the structural integrity of the pipeline and without interfering with the normal flow state of the fuel, so its application range is extremely wide. It covers many fields from the flow monitoring of heating and fuel pipelines in common civil buildings to the flow detection of fuel power systems in large water conservancy and hydropower projects. ​

In summary, fuel flow meters are undoubtedly one of the most important tools in many industries that are highly dependent on the effective management of fuel consumption. With these diversified and scientific and reasonable operating principles, these instruments can continuously and stably provide accurate real-time data, thus laying a solid data foundation for optimizing the performance of relevant systems and improving the overall operating efficiency, and effectively promoting the continuous development and progress of various industries in the direction of more efficient, energy saving and safety.