A system for generating water recycling and humidification

Through the combination of condenser, evaporator and spray device, the recycle of water generated by fuel cells and air humidity increase is realized, the air humidity regulation efficiency is improved, and the dynamic working conditions of the stack are met.

CN115763897BActive Publication Date: 2025-07-25SUNRISE POWER CO LTD
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Patent Information

Application Number
CN202211635845.9
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-12-19
Publication Date
2025-07-25
Estimated Expiration
2042-12-19

AI Technical Summary

Technical Problem

The water generated in the existing fuel cell system has not been effectively recycled, the air humidity regulation efficiency is not high, which affects the performance of the fuel cell, and the product generated has not been reasonably utilized.

Method used

Through the combination of condenser, evaporator, water pump and spray device, the generated water is recycled and humidified, and the air humidity and temperature are adjusted by circulating water pump and three-way flow control valve, and the air pressure expander is used to control the air state into the stack.

Benefits of technology

It realizes efficient recycling of generated water, improves air humidity increase efficiency, meets the dynamic working conditions of the stack, and solves the problem of generated water recycling.

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Abstract

The present invention discloses a system for generating water recycling and humidification, which has the following circulation paths: Cooling water circuit circulation: The fuel cell stack flows through a temperature sensor and a pressure sensor and enters the coolant water pump, then flows into the evaporator, passes through the evaporator and enters the radiator, and then reaches the flow control valve and is divided into two paths. One path flows through the pressure sensor and the temperature sensor and enters the fuel cell stack, and the other path enters the intercooler and then converges to the cooling pipeline at the outlet of the fuel cell stack. Air circuit circulation: Air flows through the air filter and the mass flow meter and enters the condenser, then enters the turboexpander. The pressurized dry air flows through the temperature sensor and reaches the mixing chamber, where it is mixed with the water vapor generated by the evaporator and then flows through the humidity sensor, the pressure sensor and the temperature sensor and enters the fuel cell stack. The condenser receives the generated products of the fuel cell stack, then the condensed water enters the water pump, and the other gas products enter the turboexpander and then flow through the exhaust mixing chamber and are discharged.
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