Fuel cell multi-mode switching anode pressure pulsating water erosion control system

A fuel cell and pressure pulsation technology, used in fuel cell control, fuel cells, fuel cell additives, etc., can solve problems such as reducing hydrogen utilization, stack voltage fluctuation, and excess hydrogen, and achieve good cell voltage uniformity. , small interference and parameter changes, and the effect of improving utilization

Active Publication Date: 2019-01-15
CHONGQING UNIV
View PDF12 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional anode water management generally uses intermittent open one-way flushing to discharge the anode water, but the traditional method will lead to more waste of hydrogen, reduce the utilization rate of hydrogen, and cannot effectively avoid the uneven distribution of anode water. The resulting uneven voltage of the single cell will also cause large fluctuations in the stack voltage due to excessive fluctuations in the anode pressure during flushing

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 multi-mode switching anode pressure pulsating water erosion control system
  • Fuel cell multi-mode switching anode pressure pulsating water erosion control system
  • Fuel cell multi-mode switching anode pressure pulsating water erosion control system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0032] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0033] The invention is a new method for multi-mode flushing control of a closed fuel cell water management system. The fuel cell stack is flushed by using the pulsating pressure generated inside the fuel cell, and the hydrogen supply direction of the fuel cell is changed through a three-way valve to realize fuel flow. The flushing direction of the battery stack is switched.

[0034] The present invention is mainly composed of multi-mode switching anode pressure pulsating water flushing control system of the fuel cell. Three-way valve II, solenoid valve buffer tank and cooling fan; figure 1 shown. Two electronically controlled pressure reducing valves are used in the design: a high pressure valve with constant output pressure value and a low pressure valve with online adjustable output pressure. Two groups of two-position three-way valve...

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 a fuel cell multi-mode switching anode pressure pulsating water scouring control system, belonging to the fuel cell technical field. The technical points of the method are asfollows: (1) the pressure difference of anode scouring for fuel cell stack is dynamically adjusted to achieve the optimal scouring effect of anode water; (2) adjusting the direction of anode scouringdynamically to achieve the optimal distribution of anode runner water; (3) The anode is sealed to realize the anode hydrogen cycle with zero hydrogen emission. The invention can realize the optimal anode water scouring effect of the fuel cell, reduce the pressure fluctuation of the anode of the fuel cell, avoid the voltage fluctuation caused by the pressure sudden drop in the traditional anode drainage control, and optimize the distribution of the anode water in the stack to improve the uniformity of the working voltage of the fuel cell unit.

Description

technical field [0001] The invention belongs to the technical field of fuel cells, and relates to a fuel cell multi-mode switching anode pressure pulsating water flushing control system. Background technique [0002] When the fuel cell is working, hydrogen generates hydrogen ions at the anode and passes through the proton exchange membrane, and then reacts with oxygen at the cathode to generate water. The water produced at the cathode will diffuse back to the anode due to the concentration difference, which will increase the accumulation of water in the anode of the stack And the electrode is flooded, thus hindering the hydrogen transmission, so the water management of the anode of the stack is very important. The traditional anode water management generally uses intermittent open one-way flushing to discharge the anode water, but the traditional method will lead to more waste of hydrogen, reduce the utilization rate of hydrogen, and cannot effectively avoid the uneven distr...

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
Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/04298H01M8/04746
CPCH01M8/04298H01M8/04783Y02E60/50
Inventor 张财志曾韬李栋军刘浩樊芮嘉宋雨茜
Owner CHONGQING UNIV
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