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

A fuel cell system and fuel cell technology, applied in the direction of fuel cells, circuits, electrical components, etc., can solve the problems of high energy consumption and stack damage, and achieve the effects of less energy consumption, rapid start-up, and reduced energy consumption

Pending Publication Date: 2018-12-25
SHANGHAI UNIV
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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 ce

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

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Embodiment

[0030] Such as figure 1 As shown, the present invention provides a metal stack fuel cell low temperature start thermal control system, comprising: a metal stack fuel cell system and a low temperature cold start auxiliary system, wherein the metal stack fuel cell system is an additional The fuel cell metal stack, the low-temperature cold start auxiliary system of this embodiment includes: air compressor, low-temperature catalytic combustion tube, intercooler, first humidifier, second humidifier, lithium battery pack, temperature and pressure sensors, exhaust gas / Water drains, circulating pumps, radiators, solenoid valves, etc. Combine below figure 1 The working properties and interconnection of key components in the metal stack fuel cell system are described in detail.

[0031] Wherein, the fuel cell metal stack is a proton exchange membrane fuel cell stack using stainless steel sheets with corrosion-resistant surfaces as current collectors and flow field plates.

[0032] T...

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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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Application Information

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IPC IPC(8): H01M8/04225H01M8/04302
CPCH01M8/04225H01M8/04302Y02E60/50
Inventor 赵邓玉赵宏滨容忠言董俊萍岳宝华颜蔚李爱军方建慧张久俊
Owner SHANGHAI UNIV
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