Importance

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Abstract

Disclosed are a cold box structure with cold box panels partly built-in and an installation method therefor. The cold box structure is mainly applied to plate-fin heat exchangers, and in particular to high-pressure aluminum plate-fin heat exchangers. The cold box structure comprises a base, a cold box support frame, four cold box panels, and a cold box top plate, and a plate-fin heat exchanger is placed inside the cold box. Some of or all the four cold box panels can be placed inside the cold box support frame as needed. The cold box structure can protect the cold box support frame from being damaged by cryogenic steam ejected from the plate fin-heat exchanger due to leakage, and further enables the discovering of leakage situations of the plate-fin heat exchanger from outer surfaces of the cold box panels in a timely manner.

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First Claim