The utility model discloses a fuel
cell engine
tail drainage
water recovery control device and an automobile, a
cathode outlet and a
cathode inlet of a fuel
cell stack are respectively connected with an inlet and an outlet at one side of an air humidifier, an air outlet of a compressor of an
air compressor is connected with an air inlet of an
intercooler, an air outlet of an
air filter is connected with an air inlet of the compressor, and an air outlet of the
air filter is connected with an air outlet of the
intercooler.
Cathode exhaust gas of the fuel
cell stack is humidified by the air humidifier and then enters the primary water segregator through the air
back pressure valve, an inlet end of the secondary water segregator is connected with an outlet end of the primary water segregator, an air outlet end of the secondary water segregator is connected with an air inlet of a turbo expander of the
air compressor, and an air outlet end of the turbo expander is connected with an air outlet of the
air compressor. A second air outlet of the air humidifier is communicated with the
water recovery device through an air
back pressure valve and a first drainage valve in sequence, the water outlet end of the second-stage water segregator is communicated with the
water recovery device through the first drainage valve, the air inlet end of the condenser is connected with an outlet of the turbo-expander, and meanwhile the water outlet end of the condenser is communicated with the water
recovery device.