Fuel cell integrated with heat pump energy recovery system, and energy recovery control method

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By setting up a heat pump system in the fuel cell system, the waste heat is used to heat the tail exhaust gas, which solves the problems of low energy recovery efficiency of fuel cell exhaust gas and complex system structure, and achieves efficient energy recovery and temperature control.

WO2025086527A1 Publication Date: 2025-05-01BROAD OCEAN MOTOR FUEL CELL TECH (ZHONGSHAN) CO LTD

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Patent Information

Application Number: PCT/CN2024/081074
Authority / Receiving Office: WO · WO
Patent Type: Applications
Current Assignee / Owner
Priority Date: 2023-10-25
Filing Date: 2024-03-12
Publication Date: 2025-05-01

Application Information

Patent Timeline

25 Oct 2023

Priority

12 Mar 2024

Application

PCT/CN2024/081074

01 May 2025

Publication

WO2025086527A1

IPC: F25B30/06; F04B35/04; F25B49/02; H01M8/04007; H01M8/04029

CPC: F04B35/04; F25B30/06; F25B49/02; H01M8/04007; H01M8/04029; H01M8/04014; H01M8/04089; H01M8/04358

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Application Domain

Heat pumps Fuel cell heat exchange

Technology Topics

Manufacturing cost reduction Fuel cells

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AI Technical Summary

Technical Problem

The fuel cell exhaust energy recovery efficiency is not high, and the existing technical solutions are complex in structure, and there is a risk of temperature out of control.

Method used

A heat pump system is set up between the cooling system and the air supply system, and the heat pump system absorbs waste heat and heats the tail exhaust gas to increase the gas temperature entering the expander.

Benefits of technology

Effectively improve the energy recovery efficiency of fuel cell exhaust gas, simplify system structure, reduce manufacturing costs, and avoid the risk of temperature out of control.

✦ Generated by Eureka AI based on patent content.

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Abstract

Disclosed in the present invention are a fuel cell integrated with a heat pump energy recovery system, and an energy recovery control method. The main features are that: a heat pump system is arranged between a cooling system and an air supply system, and after absorbing waste heat in the cooling system, the heat pump system heats exhaust tail gas discharged by a cell stack module, so as to increase the temperature of exhaust tail gas entering an expander, thereby improving the energy recovery efficiency of the expander. The heat pump system has a simple structure, and an energy recovery strategy is reasonable, thereby greatly simplifying the structure of the energy recovery system of the fuel cell, reducing manufacturing costs, and eliminating the risk of temperature runaway.

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