General The LCMASSTM by Rheonik is a patented Coriolis mass flow meter with unique construction features that solve the problem of directly measuring the mass flow of liquids and gases. A complete installation includes an RHM Flow Sensor, and an RHE Remote Transmitter. Each component is described in detail later in this publication. Market Specific markets for LCMASS meters include: oil-field exploration and production; petroleum refinery; petrochemical; CNG ( compressed natural gas); paints and coatings; pulp and paper; pharmaceutical; food and beverage; agriculture, and more. Applications LCMASS meters can be applied in a broad range of applications, but have found particular success in the very low flow applications found in many industrial installations, in the scientific community, laboratory systems, pilot plants, and additive-injection applications. Similarly, these meters are ideally suited for high temperature, high pressure and/or high flow applications because of unique construction features discussed under “Function and Construction of RHM Flow Sensors”. Typical application examples include: • Fast batching in combination with an electronic batch or process controller, even for small quantities • Metering in combination with high-pressure piston pumps ( pulsating flow) • Metering for high-temperature and high-pressure processes ( up to 660° F) • Metering for very low “drip” flow rates, e.g., 0.0022 lbs/min • Metering for highly corrosive liquids, e.g., bromine compounds Regardless of application, the high accuracy of the device is not significantly affected by changes in pressure, temperature, density, viscosity, flow profile, and multi-phase fluids. Sizes & Configurations The LCMASS meters are available in a full selection of configurations and sizes. Models are available in flow ranges from a “drip flow” of 0.0022 lbs/min to 50,000 lb/min (22,700 kg/min), and in process fittings from 1/4” NPT to 12” ANSI. Connections include flanged, threaded, and sanitary. Working pressures range from 580 psi (40 bar) to 11,600 psi (800 bar) . Standard Outputs Output data on product temperature, density, and mass flow rate can be provided using the LCMASS meter. The Remote Transmitter ( discussed on page 5) provides standard outputs including pulse, 4-20 ma, and serial digital. The RHM Flow Sensor contains two tube loops configured as shown, below. Flow direction is the same in both loops. The loops form part of an oscillating system that also includes two horizontally mounted high mass crossbars and two vertically mounted torsion rods. The torsion rods are connected together on both ends. The natural frequency of the oscillating system is a function mainly of the mass of the crossbars and the elasticity of the torsion rods. The system is excited (driven) by electromagnetic coils to provide a controlled amplitude, with the resulting oscillation being sensed by a pair of pick-up coils. See illustration, below. Function and Construction of RHM Flow Sensor 2
RkJQdWJsaXNoZXIy NDE1MjE4