Density and mass flow measurement and control system in process piping

摘要

measurement and control system for density and mass flow in process pipelines. The present utility model patent refers to an innovative device designed for continuous density determination, continuously monitoring and controlling the density and mass flow in process pipelines. the present invention basically consists of fixing bases (1) that support the support structures (2) with pivot, counterbalance and torque tube, in addition to flanges (3) for connection with the process piping (4); two temperature regulators (5) mounted together with two flexible coupling joints (6) connected to a weighing pipe section (7) on a weighing bridge (8) provided with a support and fixing base (9), a torque set (10), a temperature control and sensor (11), a flow sensor (12) and a weight or density sensor (13), all connected to a transmitter / integrator (14), in addition to a flow meter (not shown), to be installed in the process piping (4). said transmitter / integradr (14) is able to inform the deviation of mass flow in relation to the adopted standard, minimizing variations in process and energy consumption; it has built-in statistical tools to allow determining the right moment for a new calibration to be carried out in accordance with the este / iec17025 and mil-std-45662 standards; for density measurement, select unit,% solids, mass / volume of flow (volumetric, mass) and total speed, in a fully interactive environment; calculates a density and flow in real time, using an algorithm that filters short-term variations and also produces a graph and calculation of the standard deviation in real time of the density distribution, serving as an online diagnosis of the equipment / process performance. its principle of operation is based on the following statement: for a constant volume, the variation in the gavimetric force exerted by the section is directly proportional to the density of the fluid in process, resulting in the formula p = 4m / ttd ^ 2 ^ .l , where p = gravimetric force; m = mass of the fluid; d = fluid density and l = length of the pipe section.