Hydrogen Generator DME Reforming Heat Recovery

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Solution Overview

Problem

Current hydrogen generators lack efficiency in thermal management and scalability, as they do not effectively utilize waste heat and are not easily adaptable to varying production volumes.

Innovation Solution

A hydrogen generator with a multi-layered polygonal reforming reaction unit, featuring a series of heating furnaces and exhaust passages, and utilizing DME as a raw material, which maximizes thermal efficiency by recovering waste heat and allowing modular structure adjustments based on production needs.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Use of energy by moving object

If conventional hydrogen generator design is used, then structure is simple, but thermal efficiency is low and waste heat is not utilized

Engineering Contradiction:
Improvethermal efficiencyVSAvoidstructure complexity
Core Design Contradiction:
Use of energy by moving objectVSDevice complexity

Solution Approach 1:

The reforming reaction unit is positioned across multiple heating spaces by penetrating sidewalls of heating furnaces, creating a nested configuration where the reaction unit utilizes heat from multiple combustion chambers simultaneously. This nesting approach maximizes thermal efficiency by allowing the reforming reaction to occur in proximity to multiple heat sources without requiring a completely separate heating system.

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

The exhaust passages are configured to deliver combustion gas from upper heating spaces to lower heating spaces, creating a vertical heat utilization pathway. This dimensional arrangement allows waste heat from higher combustion chambers to be systematically recovered and applied to lower reaction zones, transforming previously wasted thermal energy into useful heating.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Adaptability or versatility

If fixed structure is used, then manufacturing is easy, but adaptability to varying production volume is poor

Engineering Contradiction:
Improveadaptability to production volumeVSAvoidmanufacturing ease
Core Design Contradiction:
Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The heating system is divided into multiple independent heating furnaces (first, second, third heating furnaces), each with its own combustion part and heating space. The reforming reaction unit is segmented to interact with each heating space separately. This segmentation allows individual modules to be added, removed, or adjusted based on production requirements, providing scalability while maintaining manufacturing simplicity for each standard module.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The modular configuration of heating furnaces and the reforming reaction unit's positioning across multiple heating spaces enable dynamic adjustment of the system's thermal capacity. By activating or deactivating specific heating furnaces or adjusting the reforming reaction unit's position, the system can adapt its output to match varying production demands.

Inventive Principle:
Principle #15Dynamics

3Area of stationary object

If single heating space is used, then device complexity is low, but heat exchange area is insufficient

Engineering Contradiction:
Improveheat exchange areaVSAvoidnumber of heating furnaces
Core Design Contradiction:
Area of stationary objectVSDevice complexity

Solution Approach 1:

Multiple heating furnaces and their associated combustion spaces are merged into a coordinated system where exhaust passages connect the heating spaces in sequence. The reforming reaction unit is positioned to simultaneously interact with multiple heating spaces, effectively combining the heat exchange areas of multiple furnaces into a single integrated reaction process, thereby maximizing total heat transfer surface area.

Inventive Principle:
Principle #5Merging (Combining)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

This design enhances energy efficiency by maximizing heat exchange and waste heat recovery, enabling flexible structure modifications to accommodate varying production volumes while minimizing air pollutants.

Implementation Method 1

a first combustion part provided at a lower end of the first heating furnace

Methodology Applied
Scientific EffectCombustion: Combustion

Implementation Method 2

a first exhaust passage for delivering combustion gas of the first heating space to the second heating space

Methodology Applied
Scientific EffectConvection: Convection

Implementation Method 3

a reforming reaction unit positioned across the first heating space, the second heating space, and the third heating space by penetrating sidewalls

Methodology Applied
Scientific EffectHeat exchange: Heat Exchanger

Data Source

PatentUS20240075442A1Hydrogen generator
Publication Date: 2024.03.07 BIO FRIENDS INC
  • US20240075442A1 patent drawing
  • US20240075442A1 patent drawing

AI summary

The present invention relates to a hydrogen generator, and the purpose of the present invention is to provide a hydrogen generator wherein thermal efficiency is maximized, structural changes according to amounts of production are easily implemented, and DME is used as the main source material.