| CPC H01M 8/04302 (2016.02) [H01M 8/04029 (2013.01); H01M 8/04104 (2013.01); H01M 8/04126 (2013.01); H01M 8/04753 (2013.01); H01M 8/04798 (2013.01); H01M 8/04835 (2013.01); H01M 8/04858 (2013.01); H01M 8/247 (2013.01); H01M 2250/10 (2013.01)] | 8 Claims |
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1. A large-scale proton exchange membrane fuel cell power station process system, comprising a distributed cell stack module (1), a modular fuel supply system (2), a modular oxidant supply system (3), a modular cooling system (4), a power transmission and inverter system (5), and a power station master system (6), wherein the distributed cell stack module (1) is a power station core power generation device, the modular fuel supply system (2) serves as a fuel supply system for the distributed cell stack module (1), and the modular oxidant supply system (3) serves as an oxidant supply system for the distributed cell stack module (1) the modular cooling system (4) performs cooling and heat exchange of the distributed cell stack module (1), the power transmission and inverter system (5) converts, transmits and allocates a power of the distributed cell stack module (1), and the power station master system (6) controls and manages each of the systems and the modules,
wherein the distributed cell stack module (1) is formed by connecting a first cell stack module, a second cell stack module and an Nth cell stack module, and each of the cell stack modules is formed by connecting N single cell stacks (7); the modular fuel supply system (2) comprises a low-pressure fuel buffer storage tank (V230), the low-pressure fuel buffer storage tank (V230) is connected to a fuel supply main pipe (PL270), and the fuel supply main pipe (PL270) is connected with main fuel inlets and main fuel outlets of the first cell stack module, the second cell stack module and the Nth cell stack module of the distributed cell stack module (1) through a first branch fuel supply branch pipe (PL273), a first branch fuel discharge branch pipe (PL274), a second branch fuel supply branch pipe (PL275), a second branch fuel discharge branch pipe (PL276), an Nth branch fuel supply branch pipe and an Nth branch fuel discharge branch pipe respectively,
wherein the modular fuel supply system (2) further comprises a nitrogen storage tank (V231) and a fuel collection storage tank (V232); the nitrogen storage tank (V231) is connected with a nitrogen supply main pipe (PL271), and the fuel collection storage tank (V232) is connected with a fuel collection main pipe (PL272); the nitrogen supply main pipe (PL271) and the fuel collection main pipe (PL272) are connected with a second air outlet of a first water-gas separator (V233), a second air outlet of a second water-gas separator (V234) and an Nth water-gas separator respectively after being connected with each other; a first air outlet of the first water-gas separator (V233) is connected with a first fuel circulation pump (M290), the first fuel circulation pump (M290) is connected with the first branch fuel supply branch pipe (PL273), and an air inlet of the first water-gas separator (V233) is connected with the first branch fuel discharge branch pipe (PL274); a first air outlet of the second water-gas separator (V234) is connected with a second fuel circulation pump (M291), the second fuel circulation pump (M291) is connected with the second branch fuel supply branch pipe (PL275), and an air inlet of the second water-gas separator (V234) is connected with the second branch fuel discharge branch pipe (PL276); the fuel supply main pipe (PL270) is cooperatively provided with a first pressure gauge (P210), a first stop valve (J201), a first adjustment valve (T240), and a first safety valve (A260); the fuel supply main pipe (PL270) is connected with the first branch fuel supply branch pipe (PL273), the first branch fuel discharge branch pipe (PL274), the second branch fuel supply branch pipe (PL275), the second branch fuel discharge branch pipe (PL276), the Nth branch fuel supply branch pipe and the Nth branch fuel discharge branch pipe through a first injection valve (S280), a second injection valve (S281) and an Nth injection valve respectively; the nitrogen supply main pipe (PL271) is cooperatively provided with a second pressure gauge (P211), a second stop valve (J202) and a second adjustment valve (T241); the fuel collection main pipe (PL272) is cooperatively provided with a third pressure gauge (P212), a third stop valve (J203) and a third adjustment valve (T242); a second air outlet of the first water-gas separator (V233) is connected with a third electric control valve (Q222) and a fourth electric control valve (Q223); a second air outlet of the second water-gas separator (V234) is connected with a seventh electric control valve (Q226) and an eighth electric control valve (Q227); the first fuel circulation pump (M290) is connected with a fourth adjustment valve (T243) and a first flow meter (L250) on the first branch fuel supply branch pipe (PL273), the other end of the fourth adjustment valve (T243) is connected with the first injection valve (S280), the other end of the first flow meter (L250) is connected with the first electric control valve (Q220), and the first electric control valve (Q220) is connected with the first cell stack module of the distributed cell stack module (1); the second fuel circulation pump (M291) is connected with a fifth adjustment valve (T244) and a second flow meter (L251) on the second branch fuel supply branch pipe (PL275), the other end of the fifth adjustment valve (T244) is connected with the second injection valve (S281), the other end of the second flow meter (L251) is connected with a fifth electric control valve (Q224), and the fifth electric control valve (Q224) is connected with the second cell stack module of the distributed cell stack module (1).
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