Evaporator heat exchange tube, evaporator and air conditioning unit

Abstract

The invention relates to an evaporator heat exchange tube, an evaporator and an air conditioning unit. The evaporator heat exchange tube comprises a tube body (1), a plurality of fins (2) and ribs (4), wherein the fins (2) are arranged on the outer surface of the tube body (1), at least two of the fins (2) form an evaporation chamber (3), the ribs (4) are arranged inside the evaporation chamber (3) and divide the internal space of the evaporation chamber (3) into at least two split chambers, and a gasification core generation structure (5) is arranged in each split chamber to generate bubbles. According to the evaporator heat exchange tube, the evaporator and the air conditioning unit, the bubbles can be generated in each split chamber, and the generated bubbles can be quickly combined and separated, so that the boiling heat exchange efficiency is enhanced, and the heat exchange effect is improved.

Description

technical field [0001] The invention relates to the technical field of evaporation heat exchange, in particular to an evaporator heat exchange tube, an evaporator and an air conditioning unit. Background technique [0002] As a new type of high-efficiency energy-saving equipment, the horizontal tube falling film evaporator is gradually replacing the flooded evaporator with its advantages of small refrigerant charge, small hydrostatic pressure difference, high heat transfer efficiency and convenient oil return. Different from the flooded evaporator, the liquid refrigerant in the horizontal tube falling film evaporator needs to enter the evaporator from above, and after passing through the liquid distributor to equalize the liquid, rely on gravity to make the falling liquid film flow between the tube bundles. Although the general falling film evaporators are equipped with liquid distributors, and even liquid equalizing plates are arranged at different heights to distribute liq...

AI Technical Summary

Problems solved by technology

At present, the means of enhancing boiling heat transfer of high-efficiency evaporator tubes in the industry mainly include changing the fin shape to enhance the gasification core density, accelerating the bubble detachment process, and expanding the surface to increase the heat transfer area. The heat transfer effect of these methods still does not meet the ideal requirements.

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