A heat dissipation and back pressure regulation system based on unit flow field

By introducing a control system with a unit flow field shell and adjustable louvered flow guide elements into the air-cooled unit, the airflow field distribution is optimized, solving the problems of uneven airflow and high back pressure in the direct air-cooled unit, and improving heat exchange capacity and economy.

CN117006877BActive Publication Date: 2026-07-14SUZHOU XIRE ENERGY SAVING ENVIRONMENTAL PROTECTION TECH CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SUZHOU XIRE ENERGY SAVING ENVIRONMENTAL PROTECTION TECH CO LTD
Filing Date
2023-08-01
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

Existing direct air-cooled units suffer from problems such as uneven airflow distribution, insufficient heat exchange capacity, and high back pressure, which affect the economic efficiency and safety of unit operation.

Method used

A heat dissipation and back pressure control system based on unit flow field is adopted, including unit flow field shell, steam distribution pipe, V-shaped radiator, adjustable louvered flow guide element, non-contact temperature measuring instrument and DCS control system. By monitoring and adjusting the angle of the louvered flow guide element, the airflow field distribution is optimized and the unit back pressure is reduced.

Benefits of technology

It improves the uniformity of the airflow field inside the air-cooled unit, enhances the heat exchange capacity, reduces the back pressure of the unit, and improves the operating economy.

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    Figure CN117006877B_ABST
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Abstract

The application provides a heat dissipation and back pressure regulation system based on a unit flow field, which improves the uniformity of the internal airflow field distribution of an air cooling unit, enhances the heat exchange capacity of the air cooling unit, and reduces the back pressure of the unit operation. It comprises: a unit flow field shell; two side steam distribution pipes; a V-shaped radiator; a first adjustable louvered flow guide element; a second adjustable louvered flow guide element; a bottom cooling fan outlet; a non-contact temperature measuring instrument; a steam pressure tester; and a DCS control system; the two side steam distribution pipes pass through the corresponding side top inlet of the unit flow field shell, the V-shaped radiator is arranged in the unit flow field shell, the steam flows into the finned pipes on the opposite inner surfaces of the V-shaped radiator through the steam distribution pipes, then flows out from the opposite outer surfaces on both sides, and then diffuses downward, the bottom area of the unit flow field shell is provided from top to bottom with the first adjustable louvered flow guide element, the second adjustable louvered flow guide element, and the bottom cooling fan outlet.
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