A heat supply system and method for coupling solar light and heat to a split cylinder of a medium-pressure cylinder

Abstract

The application relates to a heat supply system and method for coupling solar light heat and medium-pressure cylinder division, which comprises a light heat power station, a molten salt heat exchange device and a thermal power heat supply subsystem, wherein the light heat power station, the molten salt heat exchange device and the thermal power heat supply subsystem are sequentially connected; the thermal power heat supply subsystem comprises a boiler, a high-pressure cylinder, a first medium-pressure cylinder, a second medium-pressure cylinder and a low-pressure cylinder; an output end of the molten salt heat exchange device is connected with an input end of the first medium-pressure cylinder, an input end of the molten salt heat exchange device is connected with an output end of the high-pressure cylinder; and the boiler is connected with an input end of the high-pressure cylinder. The technical scheme provided by the application can realize steam energy cascade utilization to meet the demand of low-pressure industrial steam supply, realize energy saving and emission reduction, fully use solar light heat and realize light-coal complementation.

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