APPARATUS EXCHANGING HEAT WITH HIGH-TEMPERATURE HIGH-PRESSURE GAS

摘要

Disclosed is an apparatus exchanging heat with high-temperature high-pressure gas. The apparatus comprises an inverted-U-shaped furnace body (2). A high-temperature superheater (10), a lower-temperature superheater (8), an evaporator (7), a water high-temperature heater (5) and a water preheater (3) are sequentially arranged inside the inverted-U-shaped furnace body (2) from an inlet segment of a heat medium along the flow direction of the heat medium. The water preheater (3) is arranged at an outlet segment of the heat medium. The inverted-U-shaped furnace body (2) is a pressure-bearing high-temperature-resisting heat-insulating shell body. A desuperheater (9), a boiler barrel (6) and a deoxidizer (4) are arranged outside the inverted-U-shaped furnace body (2). The desuperheater (9) is respectively connected with the lower-temperature superheater (8) and the high-temperature superheater (10), and the boiler barrel (6) is respectively connected with the water high-temperature heater (5) and the evaporator (7) through pipelines. An inlet of the deoxidizer (4) is connected with the water preheater (3), and an outlet of the deoxidizer (4) is connected with the water high-temperature heater (5). Deoxygenization is carried out after water is preheated. The apparatus exchanging heat with high-temperature high-pressure gas has better pressure resistance and tightness, compact structure, and large heat exchanging area of a heat exchanging pipe in unit volume, and is easy to be overhauled and applicable to energy fields such as solar photo-thermal power generation, chemical engineering and metallurgy.