Onboard fuel cell water management system and method

A fuel cell water and management system technology, applied in the direction of fuel cells, circuits, electrical components, etc., can solve problems affecting the performance of fuel cells, and achieve the effects of avoiding failure to open normally, improving operating efficiency and performance, and preventing insufficient humidification

Pending Publication Date: 2019-07-12
SHANGHAI FUEL CELL VEHICLE POWERTRAIN
View PDF0 Cites 21 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method will make the hydrogen circulated back to the stack from the circulation device almost in a saturated state and still entrain a small amount of liquid water droplets. When mixed with the low-temperature dry hydrogen at the outle

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
  • Onboard fuel cell water management system and method
  • Onboard fuel cell water management system and method

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0044] According to the first embodiment provided by the present invention, such as figure 1 As shown, a vehicle-mounted fuel cell water management system includes a hydrogen supply assembly, a first gas-water separator 4, an electric stack 8, a first drain valve 13, a second gas-water separator 9, a second drain valve 11, a drain Air valve 12 and circulating pump 10;

[0045] The inlet of the first gas-water separator 4 is connected with the outlet pipeline of the hydrogen supply assembly, and the hydrogen supply assembly is used to provide hydrogen, and the gas outlet of the first gas-water separator 4 is connected with the hydrogen inlet pipeline of the electric stack 8, and the first The water outlet of the gas-water separator 4 is connected with the first drain valve 13 in pipeline.

[0046] The inlet of the second gas-water separator 9 is connected to the hydrogen gas outlet pipeline of the electric stack 8, and the first gas outlet of the second gas-water separator 9 i...

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 belongs to the field of fuel cells and discloses an onboard fuel cell water management system and method. The system comprises a hydrogen supply component, a first gas-water separator, avoltaic pile, a first drain valve, a second gas-water separator, a second drain valve, an exhaust valve and a circulation pump, wherein the inlet of the first gas-water separator is connected to theoutlet of the hydrogen supply component; the gas outlet of the first gas-water separator is connected to the hydrogen inlet of the voltaic pile; the water outlet of the first gas-water separator is connected to the first drain valve; the inlet of the second gas-water separator is connected to the hydrogen outlet of the voltaic pile; the first gas outlet of the second gas-water separator is connected with the exhaust valve and the first drain valve; the second gas outlet of the second gas-water separator is connected to the inlet of the first gas-water separator through the circulation pump; and the water outlet of the second gas-water separator is connected to the second drain valve. The system configures different drainage and exhaust circuits under different working conditions to preventthe anode of the voltaic pile from being insufficiently humidified or excessively humidified, thereby improving the performance of the fuel cell.

Description

technical field [0001] The invention belongs to the technical field of fuel cells, and in particular relates to a vehicle-mounted fuel cell water management system and method. Background technique [0002] Proton Exchange Membrane Fuel Cell (PEMFC) is an electrochemical power generation device that uses hydrogen as fuel and oxygen as oxidant. The only reaction product in the fuel cell, water, is formed at the cathode by the combination of hydrogen and oxygen under the action of a catalyst. [0003] In a fuel cell, the presence of liquid water will cause the gas to be unevenly distributed within the electrodes and among the units in the system, which will lead to a decrease in the performance of the fuel cell and cause inconsistent voltages among the individual cells in the system. Too much or too little liquid water will have a negative impact on the proton exchange membrane fuel cell. [0004] At present, in the existing technology, a single gas-water separator and a circ...

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): H01M8/04119H01M8/0438
CPCH01M8/04126H01M8/04156H01M8/04164H01M8/04388H01M8/04395H01M8/04425Y02E60/50
Inventor 杨秋香王晓华徐永明
Owner SHANGHAI FUEL CELL VEHICLE POWERTRAIN
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