Method and apparatus for making fluidic ice

Abstract

The present invention is fluid ice making method and apparatus. The method includes cooling the cool carrying medium in fluid to below 0 deg.c with evaporator, spraying ice making water to the cooled cool carrying medium in fluid to form mixed fluid of ice grain and cool carrying medium and separating ice from the cool carrying medium in fluid to obtain fluid ice. The apparatus for making fluid ice includes evaporator, ice making unit, water sprayer, filter with filtering net and circulating pump connected via pipeline. The present invention has high heat efficiency, high practicality, simple structure and low running cost.

Description

technical field [0001] The present invention is a method and device for making ice, especially a method and device for making fluid ice. Background technique [0002] The ice-making process widely exists in industry and daily life, especially in recent years with the gradual implementation of time-sharing electricity prices and the increase in intensity, the use of ice storage refrigeration air-conditioning units has become more and more widespread. Cooling capacity storage, turning off the refrigeration unit when the peak electricity price is reached, and melting the ice for cooling can achieve significant economic effects. [0003] The current ice-making technology can be summarized into the following categories: [0004] 1 piece of ice: Pour fresh water into a metal ice mold located in low-temperature salt water to gradually cool down, freeze into ice cubes, and then place the ice mold in a higher temperature environment to release the ice. [000...

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Problems solved by technology

[0008] In addition to producing ice slurry in the above ice-making methods, block ice, shell ice and flake ice all have ice layers formed on the metal heat transfer surface, because the thermal conductivity of ice is far lower than that of metal (the thermal conductivity of ice is 2.22 W / (m°C), while the thermal conductivity of copper and aluminum at 20°C is 398W / (m°C) and 236W / (m°C)), once an ice layer is formed on the heat transfer surface, it will cause a large heat transfer Thermal resistance, so that the heat transfer temperature difference in the ice-making process is large, the irreversible loss of the refrigeration system is large, and the thermodynamic efficiency is low

[0009] In addition, the production of block ice takes a long time to make ice; the production of flake ice and ice slurry requires ice scraping or stirring mechanical devices, and requires additional power consumption

The above-mentioned various existing ice-making methods except the refrigeration system itself (compressor, condenser, throttling parts and evaporator, etc.), the ice-making machinery part all needs to spend relatively large equipment investment

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