Current position > News detail
『Flow meter for measuring steam』Related information(clamp on meter|electromagnetic meter|venturi meterrotameter|orifice meter|ultrasonic flow meter|mass flow meter|coriolis mass flow meter|coriolis flow meter|magnetic flow meter|magmeter flow meter|magflow flow meter|mag meter flow meter|electromagnetic flow meter|vortex flow meter|turbine flow meter|thermal mass flow meter|thermal flow meter|rotameter flow meter)
What flow meter is used to measure superheated steam/saturated steam? Vortex flowmeters are generally used to measure superheated steam and saturated steam. To ensure measurement accuracy, appropriate temperature or pressure compensation should be selected based on the characteristics of both. Saturated steam: Water is heated at a certain pressure until it boils and vaporizes. At this point, the steam temperature is equal to the saturation temperature, which is called saturated steam. The saturation pressure and saturation temperature correspond to each other, and both pressure compensation and temperature compensation can be used during measurement. Due to the relatively easy pressure compensation and high measurement accuracy, pressure compensation methods are mostly used in practical applications, such as the use of LUB split vortex flowmeter embedded with HSYB pressure transmitter. Overheated steam: Saturated steam continues to be heated, and when the temperature rises and exceeds the saturation temperature at that pressure, it is called superheated steam. Superheated steam is a single-phase fluid with characteristics similar to gases. Its temperature and pressure are two independent variables, and its density is determined by both. When measuring, any change in temperature or pressure can cause a change in steam density, which in turn affects the mass flow rate. Therefore, temperature and pressure compensation must be performed simultaneously to ensure accuracy, such as when using a LUB split vortex flowmeter with HSYB pressure transmitter and WZPK platinum resistor. In addition, measuring the flow rate of high-temperature steam (superheated steam or saturated steam) can also use LUB integrated vortex flowmeter 
2. What is the most commonly used flow meter on steam pipelines?
The most commonly used flowmeter on steam pipelines is the vortex flowmeter. In addition, ultrasonic flowmeters and turbine flowmeters are also quite common. The specific introduction is as follows: The working principle of the vortex flowmeter is to use the "Karman vortex street" effect. When steam flows through the baffle, alternating vortices are generated, and the flow rate is calculated by detecting the vortex frequency.. Advantages: No moving parts, high reliability, reducing the risk of failure caused by component wear. Low pressure loss, good energy efficiency, and can reduce energy loss during steam transportation. It can measure both saturated steam and superheated steam, with a wide range of applications. Disadvantages: It is sensitive to pipeline vibration and may require the installation of vibration reduction devices in environments with high vibration. However, the Hesheng Measurement and Control LUB seismic vortex flowmeter can effectively avoid such problems. At low flow rates, accuracy may decrease, affecting the accuracy of measurement results. Sufficient straight pipe sections must be ensured during installation to ensure stable fluid flow and meet measurement requirements. Applicable scenarios: Suitable for medium and low pressure steam systems such as heating pipelines and food processing. Advantages of Ultrasonic Flow Meter (External Clamp Travel/Insertion Type): It adopts non-contact measurement method, which will not hinder steam flow and therefore has no pressure loss. Suitable for steam flow measurement in large-diameter pipeli