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1. Flow range of steam flowmeter
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1. A 15mm diameter flowmeter is suitable for liquid flow measurement range of 0.3-6m ³/h, gas and steam measurement range of 36-446m ³/h, and output frequency range of 36-446Hz
2. A 20mm diameter flowmeter has a liquid flow range of 0.6-40m ³/h, gas lift and steam range of 32-396m ³/h, and output frequency range of 4-50Hz
3. A 25mm diameter flowmeter has a liquid measurement range of 1.2-16m ³/h, steam range of 25-336m ³/h, and output frequency range of 8.8-55Hz
4. A flow meter with a diameter of 32mm can achieve a maximum measurement range of 20m ³/h and 286m ³/h for liquid and steam, respectively, with an output frequency range of 10-160Hz
5. A flow meter with a diameter of 50mm can achieve a measurement range of 8-160m ³/h and a frequency range of 35-380Hz, respectively.
. As the diameter increases, the measurement range and output frequency of the flowmeter gradually expand, such as the 800mm and 1000mm diameter flowmeters, which further increase the upper limit of the measurement range and frequency. Please note that the above data is for reference only, and specific specifications may vary depending on the product model and protocol. When selecting a traffic timer, please make sure to consult the latest product manual or confirm the applicable agreement terms with the supplier.2. What flow meters are commonly used on steam pipelines?
The commonly used flow meters on steam pipelines mainly include the following types, which need to be selected based on actual working conditions, measurement accuracy, range, pressure loss, and ins
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1. Working principle of vortex flowmeter: Based on the Karman vortex street principle, the steam flow rate is calculated by measuring the alternating vortex frequency generated by the impact of steam fluid on the triangular cylinder vortex generator.
. The vortex frequency is directly proportional to the average flow velocity of the fluid, and the volumetric flow rate can be calculated by combining the cross-sectional area of the pipeline. Applicable conditions: Preferred for steam pipeline temperature ≤ 300 ℃, with low cost and wide applicability. Large measurement range, low pressure loss, high accuracy (usually ± 1%~± 2%), and high reliability. No movable mechanical parts, low maintenance, and long-term stable instrument parameters. Structural composition: sensors, converters, display instruments. Sensors (such as piezoelectric stress sensors) convert vortex mechanical effects into electrical signals and output flow values after processing. Signal output: Supports analog signals (4-20mA) or digital signals (pulse signals) for easy data transmission and reading. Image: The vortex flowmeter is disassembled to measure the vortex frequency and calculate the flow rate Working principle of differential pressure flowmeter: Based on Bernoulli equation and flow continuity equation, the flow rate is determined by measuring the differential pressure generated by throttling devices (such as orifice plate, nozzle, V-cone). Common type: Orifice flowmeter: simple structure, but significant pressure loss. V-cone flowmeter: utilizing the V-cone throttling effect, with low pressure loss and high measurement accuracy, suitable for high viscosity or dirty media. Features: Suitable for high-temper