A metal stack fuel cell low-temperature start-up thermal control system and operation method

Abstract

The invention discloses a metal stack fuel cell low-temperature start-up heat control system and an operation method. The metal stack fuel cell low-temperature start-up heat control system comprises an external heat source heating system, an internal heat source heating system, a pressure / temperature patrol inspection system and a control system. The external heat source heating system is used forheating the metal stack from the outside; the internal heat source heating system is used for heating the metal stack from the inside; the pressure / temperature patrol inspection system is used for patrol inspection of the pressure and temperature on the metal stack fuel cell; the control system is used for integrated control of the metal stack fuel cell before and after the low temperature start-up is completed. The invention effectively enables the metal stack fuel cell to start quickly by utilizing the heat system integrating an external heat source and an internal heat source without usingtoo much auxiliary equipment, and effectively alleviate the permanent damage to the metal stack caused by the start-up failure.

Description

technical field [0001] The invention belongs to the technical field of fuel cells, and relates to vehicle-mounted metal stack fuel cell technology, in particular to a low-temperature startup heat control system and operation method for metal stack fuel cells. Background technique [0002] Fuel cell is a device that directly converts chemical energy into electrical energy. Proton exchange membrane fuel cell is a kind of fuel cell. It has the advantages of low operating temperature, high energy density, and environmental friendliness. Has good business prospects. However, for onboard and other transportation applications, PEMFC stacks and their associated thermal systems must be designed for cold climate operation to be successfully introduced to the market. Therefore, the start-up and shutdown phase operation in low temperature environment is one of the challenges faced by the delivery fuel cell. [0003] In order to ensure the safe start-up of fuel cells in low-temperature...

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Problems solved by technology

[0004] Aiming at the defects in the prior art that the low-temperature start-up of the fuel cell consumes a lot of energy and the start-up failure causes serious damage to the electric stack, the present invention provides a thermal control system and operation method for the low-temperature start-up of the metal stack fuel cell, which can effectively realize the Without using too many additional auxiliary equipment, the thermal system integrated with the external heat source and the internal heat source is used to realize the rapid start-up of the metal stack and effectively alleviate the permanent damage to the metal stack due to start-up failure

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