Improvements in Heat Exchangers used in Gas Producer Plant.

摘要

13,892. Dixon, W., and Ross, J. R. June 18. Superheaters, steam.-In gas-producer plant, the high temperature of the gases as they leave the producer is utilized to heat the air and superheat the steam required in the process. The tubes A, through which the hot gases pass, are constructed in a casing B with expansion joints P, Q of known construction, or with corrugations N to allow for expansion and contraction under the influeuce of the heat. The space between the outer surface of each pipe and the outer casing is made as great as the space surrounding the remainder of the surface of the pipe, so that unequal expansion is avoided.