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A fully automatic multi-tube capillary viscometer

A capillary viscometer, fully automatic technology, applied in the direction of DC flow characteristics measurement, material weighing, instruments, etc., can solve the problems of cumbersome operation steps, low precision, and inability to guarantee the same conditions

Inactive Publication Date: 2014-10-22
SHANDONG UNIV
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  • Abstract
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Problems solved by technology

[0003] Aiming at the above-mentioned prior art, the present invention provides a fully automatic multi-tube capillary viscometer. The present invention uses a gas-liquid separator (which is the key to ensure the same pressure) to connect multiple capillaries in parallel, so that each capillary Both ends are affected by the same pressure at any time, and it is a solution for simultaneous measurement. This solution solves the problems of the existing technology that cannot guarantee the same conditions for each measurement, low precision, great influence of temperature, and cumbersome operation steps. and other problems, and can realize automatic online measurement

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  • A fully automatic multi-tube capillary viscometer
  • A fully automatic multi-tube capillary viscometer
  • A fully automatic multi-tube capillary viscometer

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Embodiment Construction

[0078] The present invention will be further described below in conjunction with the accompanying drawings.

[0079] A fully automatic multi-tube capillary viscometer, such as figure 1 As shown, it includes control system 2, pneumatic system 1, reference liquid common injection circuit, reference liquid detection circuit and three sample detection circuits, among which,

[0080] The structure of the common injection circuit of the reference liquid is as follows: it includes the elastic air bag type pneumatic pump 6 and the reference liquid bottle I10, and the liquid inlet port of the elastic air bag type pneumatic pump 6 is connected to the pipeline of the reference liquid bottle I10;

[0081] The structure of the reference liquid detection circuit is: comprising a reference liquid bottle II 22, a gas-liquid separator 7, a capillary 12, a weighing bottle 14, a weighing device (including a weighing pan 16, a load cell 17 and an amplifier 18, It is a conventional structure in t...

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Abstract

The invention discloses a full automatic multi-tube capillary viscometer which comprises a control system, a pneumatic system, a reference liquid public injection loop, a reference liquid detection loop and at least one sample detection loop. The capillary viscometer adopts a gas-liquid isolator to connect a plurality of capillaries in parallel to enable two ends of each capillary to receive identical pressure at any time and to be measured simultaneously. The capillary viscometer well resolves the problem in the prior art that the existing viscometer cannot ensure identical measuring conditions of measurement everytime, is low in accuracy, is affected by temperature, is complex in operation step and the like, and is capable of achieving automatic online measurement.

Description

technical field [0001] The invention relates to a fully automatic multi-tube capillary viscometer. Background technique [0002] The importance of viscosity measurement in many industrial sectors and scientific research fields is well known. It is widely used in petroleum, chemical, medical and other industries. For example, the quality inspection of various petroleum products and paints requires viscosity measurement. In medicine Measuring the viscosity of blood and biological fluids has very important clinical significance (discussion on the one-point method formula of capillary viscometer, Liu Yalan, Zhang Chongjun, Physical Experiment, Volume 5, Issue 4, August 1985). The automatic control of the production process of some foods and medicines is also realized by monitoring the viscosity. It is also possible to automatically control the reaction end point by monitoring the viscosity of the synthesis reaction product. Commonly used viscosity measurements include capillary...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N11/04G01N5/00
Inventor 孙晓明万桂怡崔建军吴明海刘克敬魏欣冰
Owner SHANDONG UNIV
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