A Double Convex Hull Same-End Surface Insertion Tube Evaporator

Abstract

The invention relates to a dual-convex-hull one-end-face inner insert tube type evaporator which comprises heat exchanging pieces, fins, a liquid inlet tube and a liquid outlet tube, wherein the heat exchanging pieces are of a vertically-circular through dual-convex-hull structure which is formed by pairwise splicing of dual-through-hole heat exchanging boards, the multiple heat exchanging pieces are overlaid in sequence to form two convex-hull water chambers, the fins are arranged between every two adjacent heat exchanging pieces, the liquid inlet tube is communicated with an inlet of a first convex-hull water chamber, the liquid outlet tube is communicated with an outlet of a second convex-hull water chamber, the liquid inlet tube is further communicated with an insert tube arranged in the first convex-hull water chamber, and a plurality of through holes are evenly formed in the wall of the insert tube in the axial direction of the insert tube. According to the dual-convex-hull one-end-face inner insert tube type evaporator, the through holes are evenly formed in the axial direction of the insert tube, the liquid inlet tube conducts liquid conveyance evenly and synchronously to the near end and far end of the first convex-hull water chamber, the temperature of the whole evaporator is evenly distributed, the heat exchanging amount is improved by 5%, fluid resistance is reduced, the power of a compressor used can be reduced conveniently, energy is saved, and the environment is protected. The dual-convex-hull one-end-face inner insert tube type evaporator is suitable for dual-runner fast heat exchanging.

Description

technical field [0001] The invention relates to an evaporator, in particular to an evaporator with a double-convex hull with the same end surface and an internal insertion tube. Background technique [0002] The traditional double-channel evaporator usually enters the liquid from one side of the first channel, and the liquid refrigerant that flows into the first channel of the evaporator from one side is vaporized rapidly in the first channel, and is completely vaporized into gas when it flows to the second channel on one side. , the temperature on one side of the second flow path is relatively high, while there is almost no liquid refrigerant circulation on the other side of the first flow path and the other side of the second flow path, resulting in uneven temperature distribution between the two flow paths of the evaporator, which is not conducive to the heat exchange of the evaporator , affecting the power and service life of the air conditioning system compressor. [0...

AI Technical Summary

Problems solved by technology

For example, the stacked evaporator disclosed in the patent No. 201220212252.7 uses a partition to separate the liquid inlet flow channel, and directly transports the liquid refrigerant to the base flow channel at the lower part of the partition through the inner insertion tube, and supplies cooling from the lower part of the base flow channel to the upper part. , but when the heat-absorbed and vaporized refrigerant in the lower part of the substrate circulates upward, it will still cause uneven temperature distribution on the upper and lower parts of the substrate, which will affect the heat exchange effect, and the liquid refrigerant must be transported to the other end of the insertion tube, and the transport distance is too long. The required delivery pressure is high, the energy consumption is high, and the vaporization efficiency is low, so it is not suitable for the small-displacement double-channel fast heat exchange evaporator.

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