Method for Measuring the Mixing Effect of Mixing Equipment by Measuring the Mixing Uniformity of Alcohol Solution
A technology of mixing uniformity and mixing effect, applied in the field of measurement, can solve the problems of large differences in flow resistance, differences, and difficult mixing characteristics, such as unified description and measurement
Active Publication Date: 2017-08-22
HANGZHOU DIANZI UNIV
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Problems solved by technology
[0007] In addition, due to the different densities of oil and water, oil-water stratification occurs in the fluid in the mixing equipment, which will cause a large difference between the experimental measurement results and the actual mixing process
And for different mixing equipment, the mixing of oil and water has different behavior characteristics, it is difficult to uniformly describe and measure the mixing characteristics
In addition, during the sampling process, due to the large difference in flow resistance between oil and water passing through relatively thin sampling tubes, it is bound to cause the water content of the sample to be greater than the actual local water content.
Method used
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[0025] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0026] The method of measuring the mixing effect of the mixing equipment by measuring the mixing uniformity of the alcohol solution, the specific steps are as follows:
[0027] Step 1. Take the mixer whose mixing effect is to be tested, and set m small circles evenly distributed along the circumference on the same cross-section of the tube wall near the outlet of the mixer (the section of pipe between the vortex generator and the outlet). holes, m=12;
[0028] Step 2, the pure water is fed into the mixer at a constant initial flow rate, and at the same time, the absolute alcohol in the dosing box is added to the mixer at a constant initial flow rate through a peristaltic pump to form an aqueous alcohol solution;
[0029] Step 3, divide the cross section provided with small circular holes into m ring sector sampling areas equally, and the center of each...
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The invention discloses a method for measuring the mixing effect of a mixing device by measuring and calculating the mixing uniformity of an alcohol solution. It is difficult to uniformly describe and measure the mixing characteristics of different mixing equipment. Steps of the present invention: the mixer to be tested is opened on the same cross-section of the pipe wall near the outlet m A small round hole; the alcohol solution is passed into the mixer; the cross section with the small round hole is divided into equal parts m sector ring sampling area; each sector ring sampling area is divided into k A fan ring sampling block; a sampling point is selected in each fan ring sampling block; the relative density of alcohol at each sampling point is measured by a densitometer; Alcohol concentration at the point; measure the flow rate of each sampling point; calculate the mixing uniformity of absolute alcohol and pure water at the outlet section. The invention calculates the mixing uniformity at the outlet of each mixing device by measuring and calculating the mixing uniformity of the alcohol solution, so that the measurement methods of the mixing effects of different mixing devices are unified.
Description
technical field [0001] The invention belongs to the technical field of measurement and relates to the detection of mixing effects of mixing equipment, in particular to a method for measuring the mixing effect of mixing equipment by measuring and calculating the mixing uniformity of alcohol solution. Background technique [0002] Mixing equipment is commonly used in chemical, environmental, water treatment and other industrial fields. The quality of the mixing process directly affects the consumption of raw materials, chemicals, energy, etc. in subsequent processes and the final product quality. [0003] The degree of mixing is a measurement of the uniformity of dispersion and blending achieved by mixing different materials; in many industries, it is necessary to fully mix the mixture with the liquid to ensure that the subsequent process is carried out more effectively. [0004] To evaluate the mixing effect of mixing equipment, theoretically, it is necessary to determine the...
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IPC IPC(8): G01M99/00G01N9/36
Inventor 聂欣陶雪峰张童伟俞衡吕明徐江荣
Owner HANGZHOU DIANZI UNIV