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AssigneeSaudi Arabian Oil Company
InventorsSalamah S. Al-Anizi, Dhawi A. AL-Otaibi, Abdullah M. Al-Qahtani, Luai M. Al-Hadhrami
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Impingement plates for shell and tube heat exchangers are positioned between the inlet openings and the tubes with the surfaces of the impingement plates being normal to the flow path of the liquid entering the shell from the inlet openings and having a plurality of openings through which a portion of the liquid passes before contacting the tubes. The openings can be formed as elongated parallel slots that are positioned parallel to the tubes and function to enhance the fluid flow, especially in the area that is immediately downstream from the impingement plates, thereby reducing fluid stagnation, fouling and tube erosion and prolonging the useful life and time in service between maintenance shut downs.
A shell and tube heat exchange apparatus for the transfer of heat from a first liquid to a second liquid comprising:
A generally planar diffusing impingement plate configured and dimensioned for interpositioning between a liquid inlet opening in the exterior wall of a shell and tube heat exchanger and the tubes of the heat exchanger, the surface of the plate being generally planar and having a plurality of elongated spaced-apart slotted openings for diffusing and passing a portion of liquid contacting the surface of the plate.
A method of mitigating fouling on and corrosion of a portion of the tubes in a shell and tube heat exchanger that are in the flow path of a heat transfer liquid entering the heat exchanger through an inlet opening, the method including:
Dependencies are inferred from the claim text.