Evaporation tube manufacturing method and manufacturing equipment

Abstract

The invention relates to the field of evaporation tube manufacturing, in particular to a manufacturing method for an evaporation tube and manufacturing equipment. The manufacturing method comprises the steps that a plurality of grooves are machined in one surface or two surfaces of an evaporation coil, the evaporation coil is formed by coiling a small-diameter round tube, and the grooves are located in the outer side surface of the small-diameter round tube; a mold with a spherical hinge is used for pressing grooves in the evaporation coil, and the small-diameter round tube is pressed into anelliptical tube; the pressed evaporation coil is flattened, and the evaporation tube is obtained; and the multiple grooves are machined in the evaporation coil, the small-diameter round tube is pressed into the elliptical tube, the levelness of the pressing plane is adjusted during pressing through the mold with the spherical hinge, the heights of all positions of the evaporation coil are all thesame as possible, and the problem that elbows of flat tubes crack during pressing due to local height inconsistency is solved. The pre-pressed evaporation coil is subjected to finishing flattening, the evaporation tube of uniform thickness is obtained, and the heat exchange uniformity of all positions is improved.

Description

technical field [0001] The invention relates to the field of production of evaporation tubes, in particular to a production method and equipment for the evaporation tube. Background technique [0002] Existing refrigerator evaporators are basically round tubes with fins, silk tubes, and inflation (such as figure 2 ), plate tube or microchannel and other structural forms. Finally, it is formed into straight or oblique rows, single-layer, double-layer or multi-layer, connection methods such as series, parallel or series-parallel, and other structural methods such as parallel flow microchannel flat tubes. Patent CN201710553559.0 provides a micro-channel flat tube evaporator and its flat tube outer fin structure design and manufacturing process, which mainly provides a micro-channel flat tube evaporator, its flat tube outer fin structure design and manufacturing process . It includes the design of the outer wall structure and inner hole structure of the extruded profile of th...

AI Technical Summary

Problems solved by technology

If a small-diameter special-shaped oval tube is used for flat groove pressing at the beginning, it is easy to crack at the elbow of the flat flat tube

At present, the structural form of the flat tube evaporator is mainly a plate tube, such as figure 1 As shown, one side of the flat tube is welded or glued to a metal plate, but it is difficult to defrost, the manufacturing process is relatively complicated, etc., the thickness of the tube is inconsistent and uneven, and the heat transfer effect is inconsistent

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