PROCESS HEATER Russian patent published in 2001 - IPC

FIELD: devices designed for preheating of liquids, gases and their mixtures, applicable in various branches of industry for provision of production processes, for example, for preheating of natural gas at the inlet of gas-distribution stations. SUBSTANCE: process heater has a burning device, shell-and-tube heat exchanger screened by an external belt of heat exchange pipes. An additional internal belt of screening pipes is positioned over the entire length of the heat exchanger, that is coaxial to the external belt of pipes in such a way that the pipes of the external and internal belts within the furnace volume on the side of the burner that are similar in construction, length and quantity are supported in the holes of the annular partition fastened to the inner wall of the shell, and from the other end - in the holes of the rear bottom of the flue duct; the pipes in the radial direction of motion of the heating medium are staggered. EFFECT: enhanced reliability and efficiency at widening of heat loads. 2 cl, 2 dwg