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Online measuring device for icing strength on surfaces of materials and real-time monitoring system for icing process

A measuring device and real-time monitoring technology, applied in the direction of measuring device, analyzing materials, using mechanical devices, etc., can solve problems such as test data distortion, and achieve the effect of ensuring accuracy, simple structure, and easy implementation.

Pending Publication Date: 2019-11-19
HUBEI POLYTECHNIC UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem that the above existing icing strength testing device is not online and the test data is distorted, and to provide an online measuring device for icing strength on the surface of materials and a real-time monitoring system for the icing process

Method used

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  • Online measuring device for icing strength on surfaces of materials and real-time monitoring system for icing process
  • Online measuring device for icing strength on surfaces of materials and real-time monitoring system for icing process
  • Online measuring device for icing strength on surfaces of materials and real-time monitoring system for icing process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] see Figure 1-5 , the present embodiment material surface icing intensity online measurement device includes a centrifugal test module and a data acquisition module, the centrifugal test module includes a fixed bracket 31 arranged from bottom to top, an annular water cooling box 310, a sample turntable 34 and an ice coating mold 37, The fixed bracket 31 is equipped with a lifting drive mechanism and a guide rod 313, and the annular water cooling box 310 is equipped with a guide sleeve 317 matched with the guide rod 313. The annular water cooling box 310 is connected with the lifting driving mechanism, and the fixed bracket 31 is also equipped with a step The motor 315, the output shaft 316 of the stepper motor 315 passes through the annular water cooling box 310 and is fixedly connected to the sample turntable 34. The sample turntable 34 includes a lower heat conduction plate 343, a semiconductor cooling plate 342, and an upper heat conduction plate 341 fixedly connected...

Embodiment 2

[0046] Comparison of freezing time of static water droplets on the surface of different wettability materials

[0047] In this example, the online real-time detection system in Example 1 was used to compare and analyze the static freezing process of water droplets on the surface of hydrophilic samples (CA=80°), hydrophobic samples (CA=140°) and superhydrophobic samples (CA=160°). Before the experiment, the sample is first fixed on the slot 38 of the sample turntable, and then a drop of about 10 μL of water is dropped on the surface of the sample to be tested with a needle. The temperature in the test chamber 2 is set to 0°C, the relative humidity is 65%, and the temperature of the sample turntable 34 is set to minus 5°C. At the beginning stage, the water droplets are all transparent. As time goes on, the temperature of the water droplets begins to decrease. Once they freeze, the droplets become cloudy and no longer transparent. Due to the obvious density difference between th...

Embodiment 3

[0049] Comparison of energy consumption for melting ice on the surface of different wettability materials

[0050] This example compares and analyzes the energy consumption of melting ice after water droplets freeze on the surface of hydrophilic samples (CA=80°), hydrophobic samples (CA=140°) and superhydrophobic samples (CA=160°). First carry out the static water droplet freezing process according to the process of Example 2, then reversely energize the semiconductor cooling chip 342 in the sample turntable 34 to heat the ice beads (the upper end is the hot end, and the lower end is the cold end), and record the time required for the ice melting process and energy consumption. Each experiment was repeated three times to obtain the average value. As shown in the table below, for hydrophilic samples, the average time consumption is 27s, and the average power consumption is 0.028Wh; for hydrophobic samples, the average time consumption is 56s, and the average power consumption ...

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Abstract

The invention relates to an online measuring device for the icing strength on the surfaces of materials and a real-time monitoring system for the icing process. The online measuring device for the icing strength on the surfaces of materials includes a centrifugal test module and a data collection module. The centrifugal test module includes a fixed bracket, an annular water-cooling box, a sample turntable and an icing mold arranged from bottom to top. The fixed bracket is equipped with a lifting drive mechanism, and the annular water-cooling box is connected with the lifting drive mechanism. The fixed bracket is also equipped with a stepping motor of which the output shaft passes through the annular water-cooling box to be fixedly connected with the sample turntable. The data collection module includes a metal shield and a vibration sensor, as well as a controller for collecting the speed signal of the stepping motor and the signal of the vibration sensor. In addition to accurately measuring the ice adhesion strength on the surfaces of different materials, the online measuring device can also analyze the influences of the temperature, the humidity, the raindrop size, the impact speed of raindrops, the wind speed and the wind temperature on the freezing time of water drops on the surface of a sample to be measured, the ice thickness, the ice adhesion strength and the energy consumption of ice melting and provide guidance for the research and development of anti-icing materials.

Description

technical field [0001] The invention relates to the technical field of research and development of anti-icing materials (coatings), in particular to an on-line measuring device for the icing strength on the surface of materials and a real-time monitoring system for the icing process. Background technique [0002] Icing will bring a lot of inconvenience to people's production and life. For example, in 2008, the South suffered from a large-scale ice and snow disaster, which was rare in history. The power grid was paralyzed, the transportation was interrupted, and the crops were not harvested. The direct economic loss exceeded 150 billion. Therefore, research on anti-icing materials (coatings) has become the focus of researchers in China, the United States, Canada and other countries that often suffer from icing hazards. Most of the existing icing tests are designed to observe the icing conditions of transmission line insulators, conductors and various roads. Since the discov...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N19/04
CPCG01N19/04
Inventor 冯伟周宝玉潘世斌姜玉凤陈跃
Owner HUBEI POLYTECHNIC UNIV
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