TECHNOLOGICAL HEATER Russian patent published in 2004 - IPC

FIELD: equipment utilized in various branches of industry for heating liquids, gases and their mixtures. SUBSTANCE: given technological heater can be employed to heat natural gas across inlets of gas-distribution stations to prevent process of hydrate formation. Technological heater includes source of heating medium, shell-and-tube heat exchanger with radiation section screened by heat-exchange tubes equidistantly positioned relative to internal wall of shell, smoke stack, collectors of inlet and outlet of heated medium. Convective section of heat-exchange tubes is positioned behind radiation section forming furnace space when burner set is utilized as source of heating medium. In this case heat-exchange tubes are inserted one into another, external tubes have plugged ends facing burner set, working spaces of each heat-exchange tube on opposite end communicate through separable branch pipes to collectors of inlet and outlet of heated medium beyond limits of heater. Tubes of convective section are placed in separate upper shell which spaces are so interconnected by means of smoke flue that tubes of convective section same in design, length and number face smoke stack with plugged ends and are set in holes of circular partition anchored to internal wall of upper shell beyond limits of inlet into smoke stack, other ends of tubes are fixed in holes in bottom of upper shell, on side of collectors. Tubes of radiation section are held in holes of circular partition, are fixed with reference to internal wall of lower shell near front separable bottom on which burner set is anchored and their other ends are fixed in holes of rear bottom of shell, on side of collectors. EFFECT: raised operational reliability and efficiency of technological heater with expanded range of heat loads, preservation of ecological norms of harmful effluents in exhaust gases, decreased expenses for development and manufacture of heater as unit. 5 cl, 1 dwg