Multi-generation energy system based on solid oxide fuel cell and working method thereof

Abstract

The invention relates to a multi-generation energy system based on a solid oxide fuel cell and a working method thereof, belongs to the field of fuel cell power generation comprehensive utilization and aims to achieve recycling and utilization of solid oxide fuel cell exhaust gas. The system includes a solid oxide fuel cell integrated device, an exhaust gas condenser, a medium temperature water tank, a high temperature water tank and a steam generator. The system is characterized in that the solid oxide fuel cell integrated device is in communication with the exhaust gas condenser through a system exhaust gas pipeline, the solid oxide fuel cell integrated device is in communication with the steam generator through a high temperature ATO exhaust gas pipeline, a dewatering exhaust gas pipeline is in communication with the exhaust gas condenser, a cooling water pipeline is in communication with the exhaust gas condenser, the exhaust gas condenser and the high temperature water tank are connected through a condensate water pipeline, and a steam pipeline is in communication with the steam generator. The system is advantaged in that comprehensive energy efficiency, economical property and market competitiveness of the solid oxide fuel cell integrated device can be improved.

Description

technical field [0001] The invention relates to a solid oxide fuel cell-based multi-supply energy system and a working method thereof, which belong to the field of comprehensive utilization of fuel cell power generation, and are specifically used for the recovery and utilization of solid oxide fuel cell tail gas. Background technique [0002] Solid oxide fuel cell integrated equipment is a kind of high-efficiency and clean electrochemical power generation equipment, which has attracted people's attention because of its advantages of cleanliness, high efficiency and no noise. Especially in recent years, the rapid development of distributed energy stations has made solid oxide fuel cells have a broader application space. The exhaust gas temperature of solid oxide fuel cell integrated equipment is relatively high, generally 100-250°C, but at present, the method of evacuation is basically adopted, resulting in a huge waste of energy. Although some patents have mentioned that pa...

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Problems solved by technology

[0004] In view of the insufficient utilization of tail gas of the current solid oxide fuel cell integrated equipment and serious energy waste, the present invention proposes a solid oxide fuel cell-based multi-supply energy system and its working method to solve the problem in a reasonable, economical and efficient manner. The problem of full utilization of solid oxide fuel cell flue gas

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