Fluid ice preparation method, preparation equipment and fluidization crystallizer

Abstract

The invention relates to a fluid ice preparation method, a preparation equipment and a fluidization crystallizer; the preparation method is as follows: firstly, carrying out a first-stage cooling on ice making solution, cooling below 0 DEG C and above minus 15 DEG C; and then injecting diluent into ice making solution to obtain ice making solution with reduced concentration; and finally carrying out a second-stage cooling on reduced ice making solution and continuously cooling to produce fluid ice. A fluid ice crystallization passage of the fluidization crystallizer of the preparation equipment of fluid ice is divided into a first refrigeration section and a second refrigeration section in the flow direction; a first stage evaporator and a second evaporate are respectively and correspondingly arranged at outer sides of the two refrigeration sections; one end of the fluid ice crystallization passage close to the first refrigeration section is provided with an ice making solution inlet and the other end is provided with a fluid ice outlet; a diluent inlet is arranged between the two refrigeration sections. The invention carries out two-stage cooling on ice making solution and reducesthe concentration of ice making solution in the ice making process, thus increasing the utilization rate of cooling capacity and refrigeration efficiency of a refrigeration system.

Description

technical field [0001] The invention relates to a method for dynamically preparing fluid ice, and also relates to a device for preparing fluid ice and a fluidized crystallizer thereof. Background technique [0002] Fluid ice, also known as slush ice or ice slurry, is a homogeneous two-phase mixture of granular ice crystals and an aqueous solution such as fresh water, salt water or sea water. In recent years, the production and application of fluid ice has attracted widespread attention in the ice-making field. Fluid ice is a mixture of fine ice particles and water. Since there is no ice layer on the solid heat transfer surface during the production of fluid ice, complete flow and heat transfer is achieved. This is the category of dynamic ice production. Therefore, the heat transfer during dynamic ice production The temperature difference is small, and the thermal performance coefficient of making fluid ice can be nearly doubled compared with that of making block ice. In ad...

AI Technical Summary

Problems solved by technology

The refrigerating system created by this invention includes a refrigerating compressor, a condensing heat exchanger, a thermal expansion valve, and a refrigerant evaporator arranged outside the vertical double-cylinder ice crystallizer. One port is connected, the other port of the condensing heat exchanger is connected with the refrigerant inlet of the refrigerant evaporator through the thermal expansion valve, and the refrigerant outlet of the refrigerant evaporator is connected with the refrigerant inlet of the refrigeration compressor. The structure created by the invention Simple, high ice-making efficiency, low failure rate, high-concentration fluidized ice can be produced directly with salt solution, but the cooling capacity of the refrigeration system created by this invention still has room for further utilization

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