Exhaust heat heating system of fuel cell vehicle

Abstract

An afterheat heating system of a fuel cell vehicle belongs to the technical field of vehicle heating and is characterized by comprising a heating pipeline; a cooling loop transmits heat to the heating pipeline by an intermediate heat exchanger; a section of bypass pipeline is arranged between the inlet and the outlet of the radiator of a fuel cell; an electric-control triple valve is arranged at the inlet of the bypass pipeline and the radiator of the fuel cell; a check valve is arranged on the heating pipeline; the heating side of the intermediate heat exchanger is connected on a cooling pipeline; the cold side of the intermediate heat exchanger is connected on the heating pipeline; a water pump and a radiating device are arranged on the heating loop. The system can effectively utilize the afterheat of the fuel cell to heat the vehicle and has the advantages of energy saving and simple structure, etc.

Description

technical field [0001] A waste heat heating system for a fuel cell vehicle belongs to the technical field of vehicle heating. Background technique [0002] A fuel cell is a device that converts chemical energy of fuel directly into electrical energy and thermal energy, wherein the generated thermal energy accounts for 50% of the chemical energy of fuel. Currently, vehicles using fuel cells as engines only use the electric energy generated by the fuel cells, and the heat energy generated is not utilized but directly discharged. Currently, fuel cell vehicles use direct electric heating for heating in winter, which consumes a large amount of high-grade energy (electric energy) and increases the fuel consumption of fuel cell vehicles. If the waste heat of the fuel cell itself can be used to heat the vehicle, it will The economy of the vehicle is greatly improved, and the energy consumption of the fuel cell vehicle is more reasonable. Since the fuel cell cooling water uses deio...

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Problems solved by technology

[0004] Aiming at the problem that the existing fuel cell vehicle itself has a large amount of waste heat, but the use of direct electric heating for heating causes large power consumption, the present invention proposes a fuel cell vehicle waste heat heating system using a heat pipe intermediate heat exchanger, and solves the problem of deionized water The problem of ionization can save the power consumption of vehicles for heating and improve the economy of vehicles

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