A combined quick-freezing device based on flat jet impingement evaporator

Abstract

The invention discloses a combined quick-freezing device based on a flat jet impingement evaporator, which includes a bracket unit, a lower flat unit arranged in the bracket unit, and a liftable upper flat unit. The upper flat unit and the lower flat unit are respectively It is formed by docking multiple cargo plates; the back of each cargo plate is connected to a flat jet impingement evaporator, the outlet of the flat jet impingement evaporator is connected to the inlet of the compressor, and the exhaust port of the compressor is connected to the inlet of the condenser The outlet of the condenser is connected with the inlet of the liquid separator, and the outlets of the liquid separator are connected with the inlets of the flat jet impingement evaporator. The invention adopts a flat jet impingement evaporator, simplifies the components of the refrigeration system, increases the evaporation speed and cooling rate, shortens the quick-freezing time, and improves the operating efficiency of the system; the modular design makes each quick-freezing compact and can be flexibly arranged according to the demand, and solves the structure of the quick-freezing device Complicated, bulky limitations.

Description

technical field [0001] The invention relates to the field of quick-freezing technology, in particular to a combined quick-freezing device based on a flat jet impingement evaporator. Background technique [0002] Quick freezing is a process widely used in food processing, material handling and other industries, and has important practical value. Quick freezing can reduce the temperature of food below its freezing point, so that all or most of the moisture contained in it gradually forms reasonable tiny ice crystals, reducing the liquid moisture necessary for microbial life activities and changes in food nutrients, and can preserve food to the greatest extent. The original color, flavor and nutrition can effectively extend the storage period of food and play a role in regulating the off-peak season of the market. [0003] At present, the quick-freezing devices in our country can be roughly divided into strong wind continuous quick-freezing devices, tunnel-type freezing device...

AI Technical Summary

Problems solved by technology

The strong wind quick-freezing device adopts a finned tube evaporator, and the blower adopts a centrifugal fan or an axial fan with a high pressure head, and the quick-freezing speed is low; the tunnel-type freezing device is not limited by the shape of the food, but the food drying consumption is large; the contact quick-freezing The heat transfer coefficient of the device is large, and the quick-freezing time is short, but the structure is relatively complicated, and it can only be produced intermittently and has certain restrictions on the thickness of quick-frozen food.

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