| 摘要 |
steam generation, applicable in heat power engineering. SUBSTANCE: boiler unit has a drum with water and steam spaces, evaporator and a feed water circulating circuit, heat-transfer agent closed regenerating circuit with regenerators, two shell-and-tube heat exchangers are used as regenerators, and just a heat exchanger of intensive feed water heating and a heat exchanger of feed water preheating, the vapor-gas mixture is discharged from the regenerating circuit to the boiler steam space, and the tube bunch of the heat exchanger of intensive feed water heating is made in the form of two headers with a meridian connection of heat-exchange tube. EFFECT: intensified heat exchange. 1 dwg
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