Plate-fin type heat exchanger core

Abstract

The invention belongs to the field of plate-fin type heat exchangers, and particularly relates to a plate-fin type heat exchanger core. The plate-fin type heat exchanger core comprises side plates, heat dissipation belts, cooling pipe assemblies and sealing strip assemblies; a plurality of heat dissipation belts and a plurality of cooling pipe assemblies are arranged between the side plates on thetwo sides; the heat dissipation belts and the cooling pipe assemblies are arranged alternately; each cooling pipe assembly comprises a plate-fin type single-hole pipe and an inner fin welded in the plate-fin type single-hole pipe; sealing strip assemblies are arranged at the two ends of each heat dissipation strip; each sealing strip assembly comprises an extrusion sealing strip and a welding wire; welding wire grooves are formed in the two sides of the end face of each extrusion sealing strip respectively; the welding wires are accommodated in the welding wire grooves respectively; the welding wires are melted in the brazing process, and then the extrusion sealing strips and the adjacent cooling pipe assemblies are welded and sealed, and then a core body is formed. According to the plate-fin type heat exchanger core, the types and number of parts of an existing plate-fin type heat exchanger core are reduced, the assembling efficiency is improved, core size control is facilitated, assembly line step-by-step production is facilitated, the leakage rate of the plate-fin type heat exchanger core is reduced, and meanwhile, the product appearance is improved.

Description

technical field [0001] The invention belongs to the field of plate-fin heat exchangers, in particular to a core body of the plate-fin heat exchanger. Background technique [0002] Such as Figure 1~4 As shown, the parts required for assembly of the existing plate-fin heat exchanger core include side plate 1, aluminum strip separator 2, short seal 3, heat dissipation belt 4 and internal channel 5, and internal channel 5 includes two long seals 501, two upper and lower aluminum strip partitions 2 and inner fins. The assembly sequence of the core body of the existing plate-fin heat exchanger is as follows: side plate 1, aluminum strip partition 2, heat dissipation strip 4, short seals 3 placed at both ends of the heat dissipation strip 4, and an aluminum strip partition forming the internal channel 5 2. Place long seals 501 at both ends of the aluminum strip partition 2, place inner fins 6 between the two long seals 501, place another aluminum strip partition 2 forming the int...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problems of various types and quantities of plate-fin structure parts of all-aluminum radiators, difficult assembly, low assembly efficiency, high core leakage rate, and inability to realize refined production, the purpose of the present invention is to provide a plate-fin heat exchanger Core, to simplify the type and quantity of core parts, reduce the core leakage rate, facilitate core assembly and size control

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