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A method to reduce the supercooling degree of water

A supercooling, pure water technology, applied in chemical instruments and methods, heat exchange materials, applications, etc., can solve the problems of reducing water subcooling, increasing energy consumption of ice machines, etc., to eliminate subcooling, The effect of reducing energy consumption and shortening the freezing time

Active Publication Date: 2021-05-11
ZHEJIANG OCEAN UNIV
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Problems solved by technology

[0004] The purpose of the present invention is to provide a method for reducing the degree of water supercooling aimed at the technical problem that the energy consumption of the ice maker increases due to the existence of the supercooling phenomenon in the fluidized ice preparation process, and to provide a method for reducing the degree of supercooling of water. By adding nano-chitosan to the water, effective reduce water subcooling

Method used

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  • A method to reduce the supercooling degree of water
  • A method to reduce the supercooling degree of water
  • A method to reduce the supercooling degree of water

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Embodiment Construction

[0028] The technical solution of the present invention will be further described below through specific embodiments and accompanying drawings. Unless otherwise specified, the raw materials used in the examples of the present invention are commonly used raw materials in the art, and the methods used in the examples are conventional methods in the art.

[0029] The term "fluidized ice" in the present invention refers to a solid-liquid two-phase solution containing suspended ice crystal particles, wherein the ice crystal particles are tiny, with a diameter of no more than 1 mm, strong fluidity, and can be transported by pumps.

[0030] The term "water subcooling" in the present invention refers to the difference between the actual freezing temperature of water and the theoretical freezing temperature.

[0031] Water, including tap water, pure water, mineral water or sea water, can be divided into four stages theoretically when it cools down to form ice crystals, such as figure 1...

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Abstract

The invention relates to the technical field of ice making, and relates to a method for reducing water supercooling in the ice making process. The method includes adding nano-chitosan into water. The water can be one or more of tap water, pure water, mineral water, and sea water.

Description

technical field [0001] The invention relates to the technical field of ice making, and relates to a method for reducing the degree of water supercooling in the ice making process. Background technique [0002] Fluidized ice has the advantages of small ice crystals, round particles, and easy access. It is used for rapid cooling of aquatic products without piercing the skin of aquatic products. It can effectively improve the quality of aquatic products and extend the shelf life. It has a wide range of applications in cold chain logistics. prospect. However, due to the supercooling phenomenon in the actual ice-making process, the actual ice-making temperature needs to be lowered below the theoretical temperature to start icing. Generally, the solution has a supercooling degree of 5.0-6.0°C, while the supercooling degree of seawater is even higher. As a result, the ice machine needs to work at an extremely low evaporation temperature, which increases energy consumption and hind...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K5/06F25C1/00
CPCC09K5/066F25C1/00
Inventor 沈思佳赵文琪韩志马庆文高军凯陈妍
Owner ZHEJIANG OCEAN UNIV
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