Abstract: A direct current (DC) charging module and a DC charging pile are provided. The DC charging module includes an alternating current (AC)/DC converter, a DC/DC converter, an internal controller, a first internal power supply, a second internal power supply, and a wake-up module. An input end of the AC/DC converter is configured to be connected to an AC power source, an output end of the AC/DC converter is connected to an input end of the DC/DC converter and a power supply end of the first internal power supply. The internal controller is configured to send a shutdown signal to the first internal power supply to turn off the first internal power supply when receiving a sleep command from the wake-up module; when the first internal power supply is turned off, the internal controller, the AC/DC converter, and the DC/DC converter are all in a sleep state.

Abstract: A CO2 desorption system suitable for limited space in a complex sailing region comprises an exhaust boiler, a compact CO2 absorber, a compact CO2 lean-rich liquid heat exchanger, a compact CO2 desorber, a compact CO2 rich liquid preheating device, a compact CO2 rich liquid reboiling pre-desorption device and an intelligent control platform. Further, a global optimization control method for the CO2 desorption system suitable for limited space in a complex sailing region is further established based through a knowledge and data-driven exhaust extraction flow accurate-prediction model for a heat source of a CO2 rich liquid preheating device and a steam extraction flow accurate-prediction model for a heat source on an upper section of a CO2 rich liquid reboiling pre-desorption device to realize flexible control of operation parameters of the desorption system under different operating conditions of an engine.