Importance

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Abstract

A heat exchanger including a shell forming a generally cylindrical housing, a plurality of dividers within the shell extending along the length of the shell, wherein the dividers separate the shell into sections and each section forms a shell pass. The heat exchanger can further include a plurality of tube passes, wherein at least one tube pass is contained within each of the shell passes, and each tube pass comprises a plurality of tubes extending along the length of the shell, a shell inlet passage configured to receive a first fluid into a first shell pass and a shell outlet passage configured to discharge the first fluid from a last shell pass, and a plurality of shell pass passages formed in the dividers near a first end or a second end of the shell configured to allow flow of the first fluid from one shell pass to the next shell pass. In addition, the heat exchanger can include a tube inlet passage configured to receive a second fluid into a first tube pass and a tube outlet passage configured to discharge the second fluid from a last tube pass and a pair of shell heads configured to couple to the first end and the second end of the shell, wherein the shell heads are divided into a plurality of sections and each section is configured to route flow of the second fluid from one tube pass to the next tube pass.

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First Claim