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Liquid drop diameter distribution measurement method based on hydrophobic material

A hydrophobic material and diameter distribution technology, which is applied in the direction of measuring devices, analytical materials, particle size analysis, etc., can solve problems such as the impact of measurement accuracy, and achieve the effects of avoiding measurement errors, ensuring accuracy, and high adhesion

Active Publication Date: 2016-03-02
SOUTHEAST UNIV
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Problems solved by technology

The photographic sampling method has a wide range of particle sizes and is not limited by the drop height and type, but the measurement accuracy is affected by non-spherical droplets

Method used

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  • Liquid drop diameter distribution measurement method based on hydrophobic material
  • Liquid drop diameter distribution measurement method based on hydrophobic material
  • Liquid drop diameter distribution measurement method based on hydrophobic material

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Embodiment Construction

[0036] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0037] The droplet diameter distribution measurement method based on hydrophobic material of the present invention, measurement process is as follows figure 1 As shown, including: ① Characterization of single droplet on the surface of hydrophobic material; ② Collection of bulk droplets of hydrophobic material; ③ Image processing of batch droplets; ④ Model calculation of true droplet diameter; ⑤ Fitting of droplet distribution characteristics .

[0038] The concrete implementation method of the present invention is as follows.

[0039] 1) Characterization of a single droplet on the surface of a hydrophobic material: select a highly adhesive hydrophobic material, use a contact angle meter to measure the contact angle θ of the hydrophobic material, and require the selected hydrophobic material to meet the contact angle greater t...

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Abstract

The invention discloses a liquid drop diameter distribution measurement method based on a hydrophobic material. The measurement process comprises steps as follows: (1), characteristic representation of a single liquid drop on the surface of the hydrophobic material; (2), acquisition of lot-sizing liquid drops on the hydrophobic material; (3), image processing of the lot-sizing liquid drops; (4), model calculation of actual diameters of the liquid drops; (5), fitting of liquid distribution characteristics. According to the method, the shape of each single liquid drop on the surface of the hydrophobic material is represented by means of the characteristic that the shape of the liquid drops can be maintained on the surface of the hydrophobic material, accordingly, lot-sizing and automatic processing of the liquid drops is realized, and a liquid drop distribution function is obtained directly. Compared with a traditional sampling measurement method, the method has higher adaptability to the liquid drops with different characteristics, and lot-sizing processing capacity and automatic processing capacity are remarkably improved; compared with an optical measurement method, the method is free from influence of non-spherical liquid drops in the air, the measurement cost is remarkably reduced, and in-site measurement is easy to realize.

Description

technical field [0001] The invention belongs to the technical field of liquid mist diameter distribution characteristic measurement, and relates to a liquid droplet diameter distribution measurement method based on a hydrophobic material. Background technique [0002] In the spray system and other industrial production processes, the atomization of liquid jet plays an important role in increasing the effective contact area between gas and liquid and strengthening the heat transfer and mass transfer between gas and liquid. The parameter to evaluate the atomization quality is mainly the size distribution of the droplets. In addition, in packed towers and other equipment, the diameter distribution of the outlet droplets is an important basis for measuring the degree of floating liquid in the tower equipment and selecting the corresponding demisting equipment. [0003] The test methods of droplet size distribution are mainly divided into measurement methods based on optical pri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N15/02
CPCG01N15/0227
Inventor 徐洁月黄世芳梁彩华张小松
Owner SOUTHEAST UNIV
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