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A device and method for measuring the density of dissolved gas and liquid based on image processing

A technology of liquid density and image processing, which is applied in the direction of measuring devices, specific gravity measurement, instruments, etc., can solve problems such as the lack of high-precision measurement methods of dissolved gas liquid density and the inability to measure liquid density

Active Publication Date: 2022-07-01
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the above method cannot measure the density of the liquid after the gas is dissolved in the liquid; at the same time, there is no high-precision method for measuring the density of the gas-dissolved liquid in the prior art

Method used

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  • A device and method for measuring the density of dissolved gas and liquid based on image processing
  • A device and method for measuring the density of dissolved gas and liquid based on image processing

Examples

Experimental program
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Effect test

Embodiment 1

[0034] A device for measuring the density of dissolved gas liquids based on image processing (see figure 1 ),include:

[0035] A closed dissolved gas liquid observation chamber 1, the dissolved gas liquid observation chamber 1 has a viewing window 11 for observation; the upper end of the dissolved gas liquid observation chamber 1 is provided with a gas discharge pipe 5 communicated with it;

[0036] Dissolved gas chamber 6, dissolved gas chamber 6 is located in dissolved gas liquid observation chamber 1, and is fixedly connected with the inner wall of dissolved gas liquid observation chamber 1 to form an independent closed space; dissolved gas chamber 6 is provided with a stirrer 12 for accelerating gas dissolution ; The bottom of the dissolved air chamber 6 is provided with a drain pipe;

[0037] Crucible 9, the crucible 9 is located in the dissolved gas liquid observation chamber 1, and is arranged corresponding to the liquid discharge port of the liquid discharge pipe, and...

Embodiment 2

[0060] A method for measuring the density of dissolved gas liquid based on image processing, using the device for measuring the density of dissolved gas liquid based on image processing provided in Embodiment 1 to measure, the method comprises the following steps:

[0061] S10, place the crucible 9 with the calibrated mass and volume in the dissolved gas liquid observation chamber 1, and at the center of the window 11;

[0062] S20, connect the dissolved gas storage tank 2, open the first valve 8 and the second valve 13 to obtain the quality of the dissolved gas that is passed into the dissolved gas chamber 6 by the pressure change of the dissolved gas storage tank 2;

[0063] S30, open the agitator 12 to accelerate the dissolving process of the dissolved gas;

[0064] S40, after the pressure of the dissolved gas storage tank 2 does not change, open the third valve 14, after the air in the dissolved gas liquid observation chamber 1 is discharged, close the fifth valve 20; The...

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Abstract

The invention discloses a dissolved gas liquid density measurement device and method based on image processing, belonging to the technical field of liquid thermal physical property measurement, comprising: a closed dissolved gas liquid observation cavity; a dissolved gas chamber, which is located in the dissolved gas liquid observation cavity, and It is fixedly connected with the inner wall of the dissolved gas liquid observation chamber to form a closed space; the crucible is located in the dissolved gas liquid observation chamber; the pressure sensor is located between the crucible and the bottom plate of the dissolved gas liquid observation chamber; the dissolved gas storage tank; the gas supply pipe, the The first end is communicated with the dissolved gas storage tank, and the second end of the gas supply pipe has a first branch and a second branch; a plurality of valves are respectively arranged on the gas supply pipe, the first branch, the second branch and the drain pipe The CCD camera is located on the outside of the dissolved gas and liquid observation chamber and is set corresponding to the viewing window; the control module is electrically connected with the pressure sensor and the CCD camera. The invention can measure the density of the liquid after the gas is dissolved in the liquid, solves the difficult problem of measuring the density of the dissolved gas and liquid, and realizes high-precision measurement.

Description

technical field [0001] The invention belongs to the technical field of liquid thermophysical property measurement, and in particular relates to a device and method for measuring the density of dissolved gas and liquid based on image processing. Background technique [0002] Dissolved gas liquids are commonly used in absorption refrigeration and carbon dioxide capture. The thermophysical properties of dissolved gas liquids are fundamental data for industrial process design, and density is one of the fundamental thermophysical properties. [0003] Common liquid density measurement methods mainly include: weighing method, specific gravity method, Archimedes' law method, U-tube method, etc. However, the above method cannot measure the density of the liquid after the gas is dissolved in the liquid; at the same time, there is no method for measuring the density of the dissolved gas liquid with high precision in the prior art. SUMMARY OF THE INVENTION [0004] In order to solve...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N9/00
CPCG01N9/00
Inventor 刘向阳付泽祺何茂刚
Owner XI AN JIAOTONG UNIV