Rotary Drum Rheometer Circulating Fluid Alignment Distributor

Abstract

The invention discloses a circulating fluid collimation distributor which comprises a spiral inflow passage with distribution holes, wherein the distribution holes are distributed to form a circle along the lower part of the spiral inflow passage; perpendicular and downward vertical passages are communicated with the lower parts of the distribution holes respectively; a ring cylinder is formed between the vertical passages arranged continuously; the lower parts of the vertical passages are communicated with a space between a rotor and an outer barrel of a rheometer; the width of each vertical passage is preferably equal to that of a measurement space, namely the internal and external diameters of the cylinder are equal to those of the rotor and the outer barrel of the rheometer respectively to enable the width of each vertical passage equal to that of the measurement space. According to the circulating fluid collimation distributor, circulating fluid can perpendicularly enter the measurement space, and is equally distributed on an annular section when a drum rheometer is used for measuring rheological parameters of easy-to-settle suspension liquid, so that the rheometer runs according to an original working principle and an original computational model without correction.

Description

technical field [0001] The invention belongs to the field of chemical engineering, and in particular relates to a measuring instrument for collimating and distributing circulating fluid when measuring the rheological parameters of easy-settling suspension with a drum rheometer. Background technique [0002] When using a drum rheometer to measure the rheological properties of a suspension that is prone to settling, in order to overcome the problem of fluid heterogeneity in the measurement space caused by the settlement of suspended particles, it is a good idea to let the suspension to be measured flow through the measurement space through an external pipeline. An effective solution (see the invention patent of Xu Jirun et al.: drum rheometer circulation system, patent publication number: CN101788445A). Rotary rheometer circulation system, including rotor, outer cylinder, peristaltic pump and circulation pipe, the rotor is placed in the outer cylinder, the bottom of the outer ...

AI Technical Summary

Problems solved by technology

However, in this drum type rheometer circulation system, the circulating fluid enters the local position of the measurement space in the vertical direction, and there are velocity components in the radial direction and the rotation direction in the entire measurement space. It is difficult to achieve a balanced distribution on the cross section

It cannot ensure that the rheometer can work according to the original principle under the condition of fluid circulation, and the calculation model needs to be changed

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