Ship fan evaporator using hot air to melt frost

Abstract

At present, the conventional ship fan evaporators use hot air to melt frost, a ship keeps inclination sailing during a period due to waves, and then water gathered in a water holding disc cannot be drained completely, an ice layer will cover the water holding disc after a few of frost melting cycles, the drainage opening will be blocked, and a frost melting system will fail. The ship fan evaporator is different from the conventional an evaporators using hot air to melt frost, and is characterized in that a plurality of seamless tubes as heating coils are arranged under a water holding disc according to the area of the water holding disc, the heating coils heat the water holding disc during a frost melting process all the time so as to prevent frost molten water from freezing, and the frost molten water can be smoothly drained out from a drainage opening.

Description

technical field [0001] The invention relates to a marine fan evaporator using hot steam to defrost, and belongs to the field of agriculture, forestry, animal husbandry and fishery. Background technique [0002] The fan evaporator that uses hot steam to defrost is used in the market in the refrigeration system. The principle is to introduce the high-temperature refrigerant gas discharged from the refrigeration compressor into the evaporator after being separated by the oil separator, and use the superheated steam to release it. The heat melts the frost layer on the outer surface of the evaporator, and the superheated steam turns into liquid after heat release, and is discharged into the drain bucket or low-pressure circulation bucket together with the original oil in the evaporator. [0003] Once the frost layer on the outer surface of the evaporator melts into water, it will drip into the water receiving pan located below the evaporator, and the water will be drained away th...

AI Technical Summary

Problems solved by technology

[0004] If the fan evaporator used on the ship is defrosted by hot steam defrosting, the ship will maintain an inclination angle for a period of time due to the action of the waves, which will cause the accumulated water in the water receiving tray to be unclean and freeze. After several defrost cycles, the ice layer will cover the drip pan and block the drain, so the defrost system will fail

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