『Selection of Steam Vortex Flow Meter』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)
1. Qingdao Aobo ORB-LUGB Vortex Street Steam Flow Meter 80 Size
Qingdao Aobo ORB-LUGB Vortex Street Steam Model World Watch Flow Meter DN80 Specification Parameters and Selection Guide
1. Core Parameters nominal diameter: DN80 (flange mounted) Measuring medium: steam (saturated/superheated), gas, liquid Accuracy level: liquid ± 1.0%, gas/steam ± 1.5% Pressure resistance level: standard 1.6MPa/2.5MPa, customizable 4.0-10.0MPa Temperature range: -20 ℃~350 ℃ (special calibration required for high temperature steam) Body material: 304 stainless steel (contact medium part)
2. Key Features 1 Wide range ratio: usually up to 1:10~1:15, suitable for scenarios with large flow fluctuations No moving parts: using piezoelectric sensors to reduce wear and maintenance requirements Integrated display: On site LCD screen displays instantaneous/cumulative traffic in real-time Signal output: 4-20mA analog signal+pulse output, supporting RS485 communication (MODBUS protocol)
III. Selection precautions • Steam type: saturated steam requires temperature compensation, superheated steam requires temperature and pressure compensation • Installation requirements: front and rear straight pipe sections are recommended to be 20DN/5DN (to ensure measurement accuracy) buried • Protection level: IP65 (outdoor rain and dust protection), explosion-proof type can be selected Ex d Ⅱ CT6
IV. Typical application scenarios • Boiler steam metering (condenser required) • Chemical process steam consumption monitoring • Food processing industry high temperature medium flow control Data source: Qingdao Aobo Instrument 2023 version product technical manual, specific selection needs to be based on actual working conditions paramete
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 installation and maintenance costs.
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 or
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