Fuel cell power generation system

Abstract

To reduce the risk of fluids that should not be allowed to flow outside leaking through drainage pipes. [Solution] A gas-liquid separator having a fuel cell and a case into which exhaust gas discharged from the fuel cell is introduced, which separates moisture from the exhaust gas within the case, discharges the water inside the case to the outside of the case through a drain port provided in the case, and discharges the exhaust gas inside the case to the outside of the case through an exhaust port provided in the case, an exhaust pipe having an exhaust outlet for discharging the exhaust gas from the exhaust port, and a drain pipe having a drain outlet for discharging the water from the drain port, A fuel cell power generation system comprising: a water seal device for sealing the drain outlet with water; and a connecting pipe that connects the exhaust pipe and the drain pipe so that gas in the drain pipe flows to the exhaust pipe and water in the exhaust pipe flows to the drain pipe.

Claims

[Claim 1] Fuel cells and A gas-liquid separator having a case into which exhaust gas discharged from the fuel cell is introduced, separating moisture from the exhaust gas within the case, discharging the water inside the case to the outside of the case through a drain port provided in the case, and discharging the exhaust gas inside the case to the outside of the case through an exhaust port provided in the case, An exhaust pipe having an exhaust outlet for discharging exhaust from the aforementioned exhaust port, A drain pipe having a drain outlet for discharging water from the aforementioned drain opening, A water seal device for sealing the drain outlet, A fuel cell power generation system comprising a connecting pipe that connects the exhaust pipe and the drain pipe so that the gas in the drain pipe flows to the exhaust pipe and the water in the exhaust pipe flows to the drain pipe. [Claim 2] The connecting pipe includes a first connection port connected to the exhaust pipe and a second connection port connected to the drain pipe. The fuel cell power generation system according to claim 1, wherein the position of the first connection port is higher than the position of the second connection port. [Claim 3] The fuel cell power generation system according to claim 2, wherein the position of the first connection port is lower than the position of the exhaust outlet. [Claim 4] The fuel cell power generation system according to claim 3, wherein the position of the first connection port is at the same height as the position of the exhaust port, or higher than the position of the exhaust port. [Claim 5] The fuel cell power generation system according to claim 4, wherein the exhaust pipe includes a portion that extends horizontally or upward. [Claim 6] The fuel cell power generation system according to claim 5, wherein the exhaust pipe has a bellows-shaped inner circumferential surface. [Claim 7] The fuel cell power generation system according to claim 2, wherein the position of the second connection port is higher than the position of the drain outlet. [Claim 8] The fuel cell power generation system according to claim 7, wherein the position of the second connection port is at the same height as the position of the drain port, or lower than the position of the drain port. [Claim 9] A ventilation device that discharges exhaust gas from the aforementioned exhaust outlet to the outside, A fuel cell power generation system according to any one of claims 1 to 8, comprising a drain pipe for discharging water in the ventilation device to the water seal. [Claim 10] A fuel cell power generation system according to any one of claims 1 to 8, further comprising a discharge pipe for releasing the gas in the water seal. [Claim 11] The system includes a ventilation device that discharges exhaust gas from the aforementioned exhaust outlet to the outside, The fuel cell power generation system according to claim 10, wherein the discharge pipe discharges the gas in the water seal to the ventilation device. [Claim 12] The fuel cell includes a plurality of fuel cells, The fuel cell power generation system according to any one of claims 1 to 8, wherein the water seal is a device shared by multiple fuel cells. [Claim 13] The fuel cell power generation system according to any one of claims 1 to 8, wherein the water seal also serves as a neutralizer for neutralizing the water from the drain outlet. [Claim 14] The fuel cell power generation system according to claim 13, wherein the water seal includes an inlet tank into which water flows from the drain outlet, a neutralization tank for neutralizing the water flowing in from the inlet tank, and a drain tank for discharging the water flowing in from the neutralization tank through an overflow pipe. [Claim 15] Fuel cells and A gas-liquid separator having a case into which exhaust gas discharged from the fuel cell is introduced, separating moisture from the exhaust gas within the case, discharging the water inside the case to the outside of the case through a drain port provided in the case, and discharging the exhaust gas inside the case to the outside of the case through an exhaust port provided in the case, An exhaust pipe having an exhaust outlet for discharging exhaust from the aforementioned exhaust port, A drain pipe having a drain outlet for discharging water from the aforementioned drain opening, The system includes a water seal device for sealing the drain outlet with water, The water seal also serves as a neutralizer for neutralizing the water coming from the drain outlet in a fuel cell power generation system.

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