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Nanofluid stability monitoring system and method

A nanofluidic and monitoring system technology, applied in flow characteristics, nanoparticle analysis, color/spectral characteristics measurement, etc., can solve the problems of nanofluidic device and single angle, unable to detect the same sample synchronously, unable to guarantee the accuracy of test data, etc.

Pending Publication Date: 2020-10-27
CHONGQING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The experimental devices and angles used to detect nanofluids in the prior art are relatively simple, and there is no special detection instrument for the stability of nanofluids
At the same time, various monitoring methods cannot simultaneously detect the same sample due to experimental equipment and operation, and cannot guarantee the accuracy of the test data

Method used

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  • Nanofluid stability monitoring system and method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] see figure 1 , the present embodiment discloses a nanofluid stability monitoring system, including a sample holding system, an absorbance testing system, a viscosity testing system, a surface tension testing system and a data acquisition system arranged in the inner cavity of the device housing 12 .

[0039] see figure 2 , the device casing 12 includes a cabinet body 1201 with one side open. The open side of the cabinet body 1201 is rotatably connected with a cabinet door 1202 . Asbestos is arranged on the outer wall of the device casing 12 . The device casing 12 adopts a double-layer structure of asbestos and metal, which not only ensures the characteristics of heat insulation and leakage prevention, but also ensures the firmness and stability of the device as a whole.

[0040] The sample holding system includes a visualized sample chamber 5 placed on a rotating platform 4 . The visualized sample chamber 5 is a transparent barrel. The upper opening of the staving...

Embodiment 2

[0047] This embodiment provides a monitoring method using the monitoring system described in Embodiment 1 for the problems that the time-varying mechanism of nanofluid stability is unclear and the stability is difficult to predict, including the following steps:

[0048] 1) Pour the prepared nanofluid into the visualized sample chamber 5 .

[0049] 2) Turn on the temperature detector 6 through the data acquisition controller 13 to keep detecting the temperature of the nanofluid in the visualized sample chamber 5 .

[0050] 3) Turn on the light source 1 and the observation camera 3 through the data acquisition controller 13 to maintain real-time detection of the nanofluid system in the visualized sample chamber 5 . After the sample chamber was left to stand for 3 minutes, the observation camera 3 was set to take pictures of the nanofluid three times.

[0051] 4) Turn on the monochromator 2 and the detector 11, set the wavelength of the ultraviolet light transmitted by the mono...

Embodiment 3

[0063] This embodiment provides a monitoring method using the monitoring system described in Embodiment 1, comprising the following steps:

[0064] 1) Pour the prepared nanofluid into the visualized sample chamber 5 .

[0065] 2) Turn on the temperature detector 6 through the data acquisition controller 13 to keep detecting the temperature of the nanofluid in the visualized sample chamber 5 .

[0066] 3) Turn on the light source 1 and the observation camera 3 through the data acquisition controller 13 to maintain real-time detection of the nanofluid system in the visualized sample chamber 5 . After the sample chamber was left to stand for 3 minutes, the observation camera 3 was set to take pictures of the nanofluid three times.

[0067] 4) Turn on the monochromator 2 and the detector 11, set the wavelength of the ultraviolet light transmitted by the monochromator and the incident light intensity, so that the ultraviolet light is projected on the detector 11 through the visual...

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Abstract

The invention provides a nanofluid stability monitoring system and method. The system comprises a sample containing system, an absorbance testing system, a viscosity testing system, a surface tensiontesting system and a data acquisition system which are arranged in an inner cavity of a device housing. The sample containing system comprises a visual sample chamber placed on the rotating platform.A to-be-monitored nanofluid is contained in the visual sample chamber. The monitoring method of the monitoring system comprises the steps of transmitted light intensity collection, surface tension data collection, viscosity data collection, photographing recording and the like. The device not only can realize real-time observation of the stability of the nanofluid, but also can realize real-time recording of physical parameters of a system, more comprehensively represents the stability change of the nanofluid, is beneficial to scientific and accurate analysis of the stability of the nanofluidat the same time, and realizes a good synergistic effect of various stability representation methods.

Description

technical field [0001] The invention relates to the technical field of monitoring devices, in particular to a nanofluid stability monitoring system and method. Background technique [0002] In the 25 years from 1995 to 2020, nanofluid has gradually evolved from a special suspension to a variety of high-quality fluids with moderate prices and various uses, and has been widely used in manufacturing, energy, and construction industries . Nanofluids have received widespread attention and recognition from all walks of life in the world in just 25 years, fully affirming the development potential of nanofluids. Due to the strong Brownian motion and intermolecular force, the surface energy will eventually lead to the agglomeration and precipitation of nano-solid particles in the base liquid, and its dispersibility will gradually decrease with time. Therefore, how to overcome the agglomeration and sedimentation of nanoparticles in the base fluid has become one of the problems that ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N11/14G01N13/02G01N15/00G01N15/04G01N21/33G01N21/84
CPCG01N11/14G01N13/02G01N15/00G01N15/04G01N21/33G01N21/84G01N2013/0283G01N2015/0038G01N2021/8405
Inventor 邹全乐张天诚冉启灿陈子涵刘涵张碧川苏二磊王智民宋遥吴斐
Owner CHONGQING UNIV
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