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JC-030
JIECHUANG
Overview
The JC-030 series elbow flow meter is installed at natural bends or horizontal straight sections of industrial pipelines. It operates without additional pressure loss, offering excellent measurement repeatability. It is suitable for complex fluid conditions such as low working pressure, high medium temperature, medium contamination, strong mechanical vibration, and large flow rates. It finds wide application in various sectors including electricity, heat, metallurgy, steel, petroleum, chemical, machinery, textiles, papermaking, pharmaceuticals, food processing, and utilities for liquid, gas, and steam flow measurement.
Principle
Fluid flowing through a pipe under certain temperature and pressure conditions rotates circumferentially when passing through a bend. According to the theory of forced vortex motion, the inertial centrifugal force generated by the fluid's circumferential motion is similar to the motion of solids in space. Therefore, the size of this centrifugal force is related to factors such as fluid velocity, fluid density, and the curvature radius of the circular motion (the curvature radius of the elbow sensor). Since the curvature radius of the elbow sensor is known, and the fluid density passing through the elbow sensor can be accurately obtained through the measurement of parameters such as fluid temperature and pressure, the size of the centrifugal force generated on the elbow sensor is only a function of the fluid flow velocity. By measuring the size of the centrifugal force, the fluid flow velocity in the pipeline can be determined, and multiplying the flow velocity by the cross-sectional area of the pipe and the fluid density allows for the calculation of fluid flow.
Application Range
● Nominal Diameter: 25mm ≤ DN ≤ 2000mm
● Nominal Pressure: PN ≤ 25MPa
● Medium Temperature: t ≤ 450°C (notify when t > 450°C)
● Reynolds Number Range: ReD > 10^4
● Accuracy Grade: Grade 1, Grade 1.5
● R/D ≥ 1.25
Product Features
● High temperature and pressure resistance, suitable for harsh environments such as moisture, dust, and vibration.
● Sensor has no insertion components, no additional resistance loss, low energy consumption, meets energy-saving and environmental protection requirements.
● Comprehensive measurement of media including liquids (hot water, cold water, oil, liquid ammonia, and others), gases (blast furnace gas, coke oven gas, oxygen, air, natural gas, acetylene, hydrogen sulfide, etc.), and steam.
● Measurement caliber ranges from DN25 to DN2000, suitable for installation at pipe bends and straight sections with low requirements for installation length (5DN upstream, 3DN downstream).
● Wide measurement flow velocity range, suitable for flow velocities of 0.2～10m/s (liquid media) and 2～70m/s (gas and steam media) inside the pipe.
● Measurement accuracy up to 1.0～1.5 grade, repeatability of 0.2%.
● For user convenience, our elbow flow meters are available in integrated and split structures.
● Intelligent integrated elbow flow meter, featuring advanced circuit design, powerful functions, low power consumption, large-screen LCD display of flow information, internal advanced data recording system ensuring data security.
● Integrated elbow flow meter system can be powered by batteries or 24VDC, outputting 4-20mA, pulse signals, with HART and 485 communication protocol.
