Low stress cyclone gas collection systems
AssigneeExxon Research & Engineering Co.
InventorsNorman W. Nelson, Wilbur H. Hild, Jr., Donald F. Shaw
Life of this patent
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Abstract
The present invention comprises suspending vessel internal components such as cyclones from a vessel roof by support hangers having a predetermined length and thermal coefficient of expansion such that the thermal expansion of support hangers of different lengths is such that the elevation of suspended components relative to each other under variable thermal conditions is substantially constant.
Claims10
A vessel having a non-horizontal roof and including:
- a plurality of primary cyclones each having a gas inlet and a gas outlet disposed within the vessel below said roof;
- a plurality of secondary cyclones equal in number to said primary cyclones, said secondary cyclones being disposed within the vessel below said roof, each of said secondary cyclones having a gas inlet and a gas outlet;
- means for operably connecting the gas outlet of a primary cyclone to a secondary cyclone;
- a pair of support rods for suspending each primary and each secondary cyclone from the roof of said vessel, the length of the support rods for said secondary cyclones being different than the length of the support rods for the primary cyclones and at least a part of the support rod for said secondary cyclones having a different thermal coefficient of expansion than said support rods for said primary cyclones such that under thermally induced expansion or contraction the elevation of operably connected cyclones relative to each other is substantially constant.
In a vessel having a plurality of components located in said vessel below the roof thereof, some of which components are operably linked to each other and which under conditions of use are subjected to varying thermal conditions thereby giving rise to thermal stresses therebetween, the improvement comprising:
- suspending said components from said roof by support hangers having predetermined lengths and thermal coefficients of expansion such that the elevation of operably linked components relative to each other is substantially constant under thermally induced expansion or contraction whereby thermal stresses are minimized.
Dependencies are inferred from the claim text.