Gas Manifold Flow Guide Design for Multi-Chamber Fuel Distribution
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Solution Overview
Problem
Recent combustion apparatuses face difficulties in feeding each distribution chamber with fuel gas at an appropriate flow rate due to the increasing number of switchable burners, which widens the difference in the number of burners and flow rates between distribution chambers, leading to inefficiencies in thermal power regulation.
Innovation Solution
A gas manifold with a flow guide that narrows the main channel to prioritize fuel flow to the maximum distribution chamber, ensuring sufficient fuel gas supply while minimizing flow to other chambers, thereby maintaining appropriate flow rates across all distribution chambers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the number of distribution chambers is increased to support more switchable burners, then the thermal power regulation precision is improved, but the difference in flow rates between distribution chambers becomes larger making it difficult to feed each chamber with appropriate fuel gas flow rate
Solution Approach 1:
The patent applies local quality by creating a narrowed section specifically at the inlet of the maximum distribution chamber, while other chambers maintain normal inlet dimensions. This localized structural modification directs a proportionally larger share of fuel gas to the chamber serving the most burners, resolving the flow rate distribution problem without increasing overall system complexity
Solution Approach 2:
The patent changes the geometric parameter of the main channel by introducing a narrowed section with reduced cross-sectional area. This parameter change increases the flow velocity and pressure drop in that specific region, thereby controlling the fuel gas distribution ratio among chambers based on their burner requirements
2Quantity of substance
If different-sized orifices are installed in distribution channels to control fuel gas flow rates, then the flow rate distribution is improved, but the device complexity and manufacturing difficulty increase
Solution Approach 1:
The patent extracts the flow control function from the distribution channels and orifices and relocates it to the main channel inlet structure. By narrowing the inlet section, the flow distribution is achieved at the source rather than requiring multiple modified distribution channels with different orifices
Solution Approach 2:
The narrowed inlet structure serves multiple functions simultaneously: it controls the flow distribution ratio, maintains appropriate pressure, and works with any number of distribution chambers. This universal solution replaces the need for chamber-specific orifice sizing
3Quantity of substance
If electromagnetic on-off valves with different sizes are used in distribution channels, then the flow rate control is improved, but the device complexity and cost increase
Solution Approach 1:
The patent removes the need for differently sized valves by extracting the flow control function to the main channel inlet. The narrowed section naturally distributes fuel gas in the correct proportions, allowing all distribution channels to use identical valve sizes
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
The gas manifold effectively distributes fuel gas at appropriate flow rates to each distribution chamber, preventing shortages and ensuring efficient thermal power regulation despite the increased number of burners and distribution chambers.
Implementation Method 1
The main channel includes a flow guide that guides the fuel gas toward a maximum distribution channel being a distribution channel included in the plurality of distribution channels connected to the maximum distribution chamber. The flow guide narrows the main channel to reduce the fuel gas flowing into distribution channels other than the maximum distribution channel.
Data Source
AI summary
A gas manifold allows each distribution chamber to be fed with fuel gas at an appropriate flow rate irrespective of an increase in the number of distribution chambers included in the gas manifold. A gas manifold distributes fuel gas flowing in through an inlet to a plurality of distribution chambers through a main channel. The main channel includes a flow guide that guides the fuel gas toward a maximum distribution chamber and reduces the fuel gas flowing into other distribution chambers. This allows fuel gas at a sufficient flow rate to be fed more easily to the maximum distribution chamber than to the other distribution chambers for a larger number of distribution chambers included in the gas manifold, allowing the plurality of distribution chambers to be fed with fuel gas at appropriate flow rates.