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Viscometer for newtonian and non-newtonian fluids

A non-Newtonian fluid and viscometer technology, which is applied in the flow characteristics of non-Newtonian fluids, direct mass flowmeters, direct current flow characteristics measurement, etc., can solve problems that are not suitable for viscometer measurement

Inactive Publication Date: 2014-01-15
ROSEMOUNT INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, a wide variety of industrial applications deal with slurries, pastes, and plastics, which behave in a non-Newtonian manner and are not suitable for measurement with conventional viscometers

Method used

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  • Viscometer for newtonian and non-newtonian fluids
  • Viscometer for newtonian and non-newtonian fluids
  • Viscometer for newtonian and non-newtonian fluids

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Embodiment Construction

[0026] In general, the present invention relates to embedded viscometers capable of handling any of a variety of Newtonian and non-Newtonian fluids including Bingham plastics and Ostwald-deWaele, Ellis and Herschel-Bulkley fluids.

[0027] Viscometer Hardware

[0028] figure 2 An illustrative embodiment of a viscometer 10 is depicted, including a process inlet 12, a first capillary 14, a seam seal 16, a connecting tube 18, a second capillary 20, a third capillary 22, a Coriolis mass meter 24 , process outlet 26, first differential pressure transducer 28, second differential pressure transducer 30, third differential pressure transducer 32, first isolation diaphragms 34a and 34b, second isolation diaphragms 36a and 36b, third isolation diaphragm 38a and 38b, and the process transmitter. Process transmitter 40 also includes signal processor 42 , memory 44 , data processor 46 , and input / output block 48 .

[0029] according to figure 2 In an embodiment, the first, second an...

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Abstract

A viscometer comprises a plurality of capillary tubes connected in series with a mass flow meter. The capillary tubes are smooth, straight, and unimpeded, and each has a different known, constant diameter. Differential pressure transducers sense differential pressure across measurement lengths of each capillary tube, and the mass flow meter senses fluid mass flow rate and fluid density. A data processor connected to the mass flow meter and the differential pressure transducers computes viscosity parameters of fluid flowing through the viscometer using non-Newtonian fluid models, based on the known, constant diameters and measurement lengths of each capillary tube, the sensed differential pressures across each measurement length, the fluid mass flow rate, and the fluid density.

Description

technical field [0001] The present invention relates to viscosity measurement, and more particularly, to viscometers capable of handling both Newtonian and non-Newtonian fluids. Background technique [0002] Fluid viscosity is a key commonly measured parameter in many industrial processes. A wide range of viscosities is typically used in processes by diverting a small amount of process fluid from the main process fluid path through a viscometer connected in parallel with the main process fluid path. In contrast, some in-line designs allow the viscometer to be located directly in the main fluid path, eliminating the need to tap the process fluid. Most conventional industrial viscometers utilize rotating parts that are in contact with the process fluid, and therefore require bearings and seals to prevent fluid leakage. In applications involving harsh, corrosive or abrasive fluids, this viscometer may require frequent maintenance. [0003] Traditional industrial process visc...

Claims

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Application Information

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IPC IPC(8): G01N11/08
CPCG01N11/08G01F1/84G01N2011/0026
Inventor 罗格·肯尼斯·皮赫拉亚
Owner ROSEMOUNT INC
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