Fuel cell system and low-temperature quick start method

A fuel cell system, fuel cell stack technology, applied in the direction of fuel cells, fuel cell additives, fuel cell heat exchange, etc., can solve the problems of high power consumption, lithium battery exhaustion, long startup time, etc.

Active Publication Date: 2019-06-11
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
View PDF15 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the past, most fuel cell start-up systems used electric heating to start. The start-up time was long, the heating was not uniform, and a large amount of electric energy was consumed. Es

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Fuel cell system and low-temperature quick start method
  • Fuel cell system and low-temperature quick start method
  • Fuel cell system and low-temperature quick start method

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach

[0025] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS: The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

Embodiment

[0027] Such as figure 1 Shown is the device structure diagram of the present invention.

[0028] Taking the 3kW methanol fuel cell system as an example, the low-temperature quick-start system includes a combustion chamber for providing heat to the reforming chamber; a reforming chamber for converting methanol into hydrogen; an electric stack for converting chemical energy of hydrogen into electrical energy; a solenoid valve It is used to control the flow of hydrogen; the low-pressure hydrogen storage tank is used to store hydrogen, and its volume is 2L. If you want to achieve a quick start at -40°C, the hydrogen storage pressure is 1MPa; the pressure sensor is used to detect the hydrogen pressure of the low-pressure hydrogen storage tank; the methanol supply module It is used to provide methanol to the combustion chamber and reforming chamber; the control module is used to control the opening of the solenoid valve, read the hydrogen pressure, and adjust the methanol supply to ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to the field of fuel cells, and in particular to a low-temperature quick start device for a fuel cell. The device comprises the following parts of a combustion chamber for supplying heat to the reforming chamber; a reforming chamber for converting methanol to hydrogen; a galvanic pile for converting hydrogen chemical energy into electrical energy; a solenoid valve for controlling hydrogen flow; a low-pressure hydrogen storage tank for storing hydrogen; a pressure sensor for detecting hydrogen pressure in the low-pressure hydrogen storage tank; a methanol supply module forsupplying methanol to the combustion chamber and reforming chamber; and a control module for controlling opening of the solenoid valve, reading the hydrogen pressure, adjusting the combustion chamberand supplying methanol for the reforming chamber. The low-temperature quick start device stores a part of hydrogen by adding a low-pressure hydrogen storage tank, and supplies hydrogen to the combustion chamber when the fuel cell system is started, especially at a low temperature start, so that the combustion chamber can be rapidly heated up to catalyze the methanol combustion temperature and shorten the startup time of the fuel cell.

Description

technical field [0001] The invention relates to the field of fuel cells, in particular to a low-temperature quick-start device for fuel cells. Background technique [0002] In the past, most fuel cell start-up systems used electric heating to start. The start-up time was long, the heating was not uniform, and a large amount of electric energy was consumed. Especially when starting at low temperature, it was difficult to heat the fuel cell to a temperature suitable for operation. The lithium battery will be exhausted before the temperature suitable for operation. Contents of the invention [0003] Aiming at the deficiencies of the prior art, the present invention proposes a hydrogen storage structure that adds a solenoid valve, a low-pressure hydrogen storage tank, and a pressure sensor at the hydrogen outlet of the stack to accelerate the start of the next fuel cell and solve the low-temperature start-up problem of the fuel cell. It also provides an algorithm for calculat...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): H01M8/04014H01M8/04223
CPCY02E60/50
Inventor 杨林林安禹臣孙公权
Owner DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap