A sealing strip for a plate-fin heat exchanger

By designing a sealing strip body, a flow distribution assembly, and a turbulence column in the plate-fin heat exchanger, the problem of short coolant flow time is solved, and full contact and turbulence between the coolant and the fins are achieved, thereby improving heat exchange efficiency.

CN224635888UActive Publication Date: 2026-08-14WUXI HUAMING ALUMINUM CO LTD
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Patent Information

Application Number
CN202522032250.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-22
Publication Date
2026-08-14
Estimated Expiration
2035-09-22

AI Technical Summary

Technical Problem

In existing plate-fin heat exchangers, the coolant has a short flow time in the water-cooling channel, which prevents it from making sufficient contact with the fins, resulting in reduced heat exchange efficiency.

Method used

Design a sealing strip for a plate-fin heat exchanger, comprising a sealing strip body, an inner cavity, a flow distribution assembly, and a turbulence column. The coolant is divided into upper, middle, and lower parts by a flow distribution plate and a baffle plate, and through holes are opened on the flow distribution baffle plate to create a turbulence effect and promote full contact between the coolant and the fins.

Benefits of technology

It increases the contact area and heat exchange efficiency between the coolant and the fins, enhances the overall circulation and turbulence effect of the coolant, and improves the heat exchange efficiency per unit time.

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Abstract

This utility model provides a sealing strip for a plate-fin heat exchanger, relating to the field of heat exchangers. It includes a sealing strip body extending in a front-to-back direction; the sealing strip body has an inner cavity; and it also includes a flow-dividing assembly, which includes an upper flow-dividing plate, a lower flow-dividing plate, a flow-dividing baffle, and a partition plate. The edges of the upper and lower flow-dividing plates are fixed to the front and rear side walls of the inner cavity; the flow-dividing baffle seals the left ends of the upper and lower flow-dividing plates; the partition plate seals the left side wall of the inner cavity and the left surface of the flow-dividing baffle; the partition plate divides the gap between the flow-dividing baffle and the inner cavity into an upper flow-dividing space and a lower flow-dividing space; a first through-hole of the flow-dividing baffle connects to the external space and the upper flow-dividing space; a second through-hole of the flow-dividing baffle connects to the external space and the lower flow-dividing space. This utility model can solve the problem in the prior art where, if the coolant flows for a short time in the water-cooling channel, the coolant cannot fully contact the fins, thus reducing the heat exchange efficiency of the plate-fin heat exchanger.
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