| 摘要: |
| 目的 研究超声波对海水流化冰制取过程中的作用效果和作用机理，并验证超声波应用于海水流化冰机制取过程的可行性。方法 对不同功率/频率参数超声波作用特定盐浓度的海水溶液制取海水流化冰进行实验，并观测其制取过程和效果。结果 将特定参数（功率/频率）超声波作用于海水中可加速海水结晶，过冷度减少了8.4 ℃，节能33.3%，缩短制备过程时间90.0 s，细化晶体粒径至20.0 μm，在实验工况为33.0 kHz，50.0 W时，海水流化冰的制取效果最佳。结论 在适当条件下，超声波具有促进海水流化冰制取过程的效果。 |
| 关键词: 冰鲜 超声波 海水流化冰 过冷 节能 |
| DOI：10.19554/j.cnki.1001-3563.2020.17.009 |
| 分类号:TS254.4 |
| 基金项目: |
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| Effect of Ultrasonic Wave on the Making Process of Sea-slurry Ice |
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WANG Zhen, LI Bao-guo, LUO Quan-quan
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University of Shanghai for Science and Technology, Shanghai 200093, China
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| Abstract: |
| The work aims to study the effect and mechanism of ultrasonic wave on the making process of sea-slurry ice, and verify the feasibility of applying ultrasonic wave to the making process of sea-slurry ice. Experiments were carried out on the preparation of sea-slurry ice from seawater solution with specific salt concentration by ultrasonic wave with different power/frequency parameters. Applying specific parameters (power/frequency) to the seawater could accelerate the seawater crystallization, reduce the supercooling degree of 8.4 ℃, save the energy by 33.3%, shorten the preparation process time by 90.0 s, and refine the crystal size to 20.0 μm. In the experimental conditions of 33.0 kHz and 50.0 W, the effect of making sea-slurry ice was the best. The ultrasonic wave under appropriate conditions has the effect of promoting the making process of sea-slurry ice. |
| Key words: chilled ultrasonic wave sea-slurry ice supercooling energy saving |
