A dead zone-eliminating disk-ring baffle shell and tube heat exchanger

By designing a baffle assembly composed of ring plate, disc plate, arc plate and distribution plate in shell and tube heat exchangers, the shell fluid flows in the center of the plate and the peripheral area of ​​the ring plate, solving the problem of inefficient heat exchange efficiency caused by the dead zone of heat transfer, and achieving structural optimization and cost reduction.

CN119779061APending Publication Date: 2025-04-08DONGFANG BOILER GROUP OF DONGFANG ELECTRIC CORP
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Patent Information

Application Number
CN202411922967.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-25
Publication Date
2025-04-08

AI Technical Summary

Technical Problem

There is a dead zone for heat transfer in existing shell and tube heat exchangers, resulting in low heat transfer efficiency. Attempts to reduce the distance between the ring plate and the circular plate in the baffle structure will increase the weight of the equipment, difficulty of installation and economic costs.

Method used

A dead-elimination zone disk ring baffle shell and tube heat exchanger is designed, which adopts a baffle assembly composed of ring plate, plate plate, arc plate and distribution plate. Through the design of arc plate and distribution plate, the shell fluid flows through the center of the plate plate and the peripheral area of ​​the ring plate to reduce heat transfer dead zone.

Benefits of technology

It effectively reduces heat transfer dead zones, optimizes structural design, reduces installation difficulty and use cost, and improves heat exchange efficiency.

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Abstract

The present invention discloses a dead zone elimination disk ring baffle shell and tube heat exchanger, which belongs to the field of heat exchanger equipment, and includes a shell, a shell side fluid inlet, a shell side fluid outlet, a heat exchange tube assembly and a baffle unit; a heat exchange space is arranged in the shell; the shell side fluid inlet and the shell side fluid outlet are both connected to the inside of the heat exchange space; the heat exchange tube assembly includes a plurality of heat exchange tubes; the baffle unit includes a plurality of baffle assemblies; the baffle assembly includes a ring plate, a disk plate, a plurality of arc plates and a plurality of distribution plates; the ring plate and the disk plate are coaxial and arranged in parallel in the heat exchange space in sequence along a first direction; a plurality of arc plates are vertically connected between the ring plate and the disk plate; a distribution plate is arranged on each arc plate; the distribution plate is used to make the shell side fluid flow outward through the center area of ​​the disk plate and the outer area of ​​the ring plate; the first direction is the flow direction of the fluid in the heat exchange tube. The present invention can reduce the heat transfer dead zone, optimize the structure, and reduce the installation difficulty and the use cost.
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