Talking about the vortex flowmeter to measure steam needs attention

Henan Bo Rui Instrument Co., Ltd. is a professional company specializing in the production and sales of electromagnetic flowmeters, vortex flowmeters, and other types of flow meters. We welcome both new and returning customers to contact us for cooperation. Our service hotline is 18638176136. For more updates, visit our website: http:// When it comes to using a vortex flowmeter to measure steam, there are several important factors to consider. One of the key challenges is the presence of two-phase flow, which can significantly affect measurement accuracy. While vortex flowmeters are typically evaluated under single-phase flow conditions, real-world applications often involve wet steam or condensate, making accurate measurement more complex. During long-distance transportation, dry steam may partially condense due to heat loss, resulting in wet steam with reduced dryness. In horizontal pipelines, the gas-liquid two-phase flow structure depends on the volume ratio and velocity of the phases. The presence of small amounts of condensed water usually leads to a drainage system installed at the bottom of the pipe, which helps maintain efficient separation. However, high flow rates can cause a liquid film along the pipe wall, with a gas core in the center containing droplets. Gravity influences the thickness of the liquid layer, making it thicker at the bottom of the pipe. In vertical ascending pipes, the two-phase flow structure may include bubble flow, slug flow, annular flow, or fiber-like flow. When the amount of condensate is low, annular flow is common. But when there's more water, fiber-like structures may appear. In vertical descending pipes, the flow patterns are similar but the liquid moves faster compared to upward flow. One issue that can occur when measuring steam with a vortex flowmeter is the "leakage pulse" phenomenon. This happens when the steam contains excessive moisture, causing irregular pulses in the output signal. Instead of a steady and proportional pulse, the meter may produce fewer or even no pulses, affecting the accuracy of the readings. This is often caused by large droplets interfering with the vortex generator, disrupting the formation of stable vortices. To prevent this, proper placement of steam traps is essential. Installing traps upstream of the vortex flowmeter ensures effective condensate removal, increasing the dryness of the steam and improving measurement reliability. If the steam is too wet, the vortex flowmeter may not function correctly, so adequate hydrophobic treatment is crucial. At Henan Bo Rui Instrument Co., Ltd., we provide a wide range of instrumentation solutions, including electromagnetic flowmeters, vortex flowmeters, turbine flowmeters, and throttling devices. We also offer level measurement products like ultrasonic level gauges, magnetic flap level indicators, and radar level gauges. Additionally, we supply pressure transmitters, temperature sensors, and automation control systems. With a commitment to quality and comprehensive after-sales support, we serve customers nationwide. For more information about our products and services, visit our website or contact us directly. Keywords: Vortex Flowmeter, Electromagnetic Flowmeter, Turbine Flowmeter Source: Henan Bo Rui Instrument Co., Ltd. Service Hotline: 18538000788 Tel: [Not Provided] Fax: [Not Provided] QQ: 1815002922 Email: [email protected] Zip Code: 450045 Address: No. 159, Huayuan Road, Jinshui District, Zhengzhou City, Henan Province Website: http://news.chinawj.com.cn

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