A Direct Evaporation Rotary Ice Making System

Abstract

The invention discloses a direct evaporation rotary ice-making system, which comprises a refrigeration device, a heat exchange device and an ice storage tank, the ice storage tank is filled with water, and the heat exchange device is equipped with a heat exchange medium, one end of which extends into the ice storage tank The other end of the tank is connected to the refrigeration device. The refrigeration device is used to cool the heat exchange medium in the heat exchange device. The heat exchange device includes a hollow shaft and a heat exchange part arranged at one end of the hollow shaft. The space inside the heat exchange part and the hollow shaft The interior is connected, the other end of the hollow shaft is connected with the refrigeration device, and the hollow shaft is provided with a driving assembly for driving the rotation of the hollow shaft. In the present invention, the heat exchange device is directly placed in the cold storage tank, and the refrigerant conducts indirect heat exchange with the water in the cold storage tank through the wall surface, thus avoiding the problem of high energy consumption caused by the increase of intermediate circulation, and at the same time avoiding the problem caused by the heat exchanger The problem of ice blockage caused by narrow water side channels; at the same time, the requirements for the system are greatly reduced, and the layout of water side pipelines is also saved, saving the initial investment cost of ice storage.

Description

technical field [0001] The invention relates to the technical field of ice making, in particular to a direct evaporation rotary ice making system. Background technique [0002] Ice making is widely used in ice storage air conditioners, fresh vegetables, fruits and seafood, pre-cooling, and cold storage. Currently, ice-making methods are mainly divided into two types: static ice-making and dynamic ice-making. The static ice-making method has high energy consumption for ice-making due to the high thermal resistance of solid ice. In the dynamic ice-making method, the scraping method has mechanical wear, and the supercooled water method is easy to cause clogging, while other methods such as the fluidized bed method and direct contact method are currently mostly in the research stage and have a low degree of commercialization. [0003] Water exists in a supercooled state before the phase transition into ice, and turns into ice after the supercooled state is released. At presen...

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Problems solved by technology

[0005] In addition, whether it is static ice-making or dynamic ice-making methods, ethylene glycol and other brines are usually used as intermediate circulating cooling. Compared with the direct evaporative cooling method, the brine cooling method has relatively high energy consumption, and the system structure relatively complex

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