Furnace Hot Header Flow Plate for Condensate Drainage
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Solution Overview
Problem
Condensing furnaces produce significant condensate that can accumulate and damage the equipment, promote bacterial growth, and lead to corrosion due to repeated volatilization and evaporation of corrosive fluids.
Innovation Solution
A condensing gas-fired furnace design that manages fluid flow, including hot combustion gases and condensation, using a configuration with primary and secondary heat exchangers, a fluid flow plate with misaligned apertures to homogenize fluid flow, and modular components to minimize condensation buildup and facilitate drainage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If condensing furnace operation is implemented to improve heating efficiency, then energy utilization is improved, but condensate accumulation and corrosion occur
Solution Approach 1:
The patent extracts and removes condensate from the furnace system through dedicated drainage pathways. The fluid flow plate design directs condensate away from sensitive components and toward drainage points, effectively separating the harmful condensate from the heating process to prevent corrosion while maintaining energy efficiency.
Solution Approach 2:
The fluid flow plate acts as an intermediary component that mediates between the heat exchangers and the drainage system. It controls fluid flow patterns, directs condensate movement, and protects downstream components from corrosive effects while allowing the condensing process to continue for efficient heating.
2Productivity
If heat exchanger surface area is increased to improve heat transfer, then heating performance is improved, but condensation buildup increases
Solution Approach 1:
The fluid flow plate is designed with predetermined flow pathways and aperture patterns that proactively direct condensate movement before significant accumulation can occur. The misaligned aperture configuration预先 establishes drainage routes that prevent condensate buildup on heat exchanger surfaces, allowing larger surface areas to be used without proportional increases in condensation problems.
3Ease of manufacture
If modular component design is used to improve ease of assembly, then installation simplicity is improved, but fluid flow management complexity increases
Solution Approach 1:
The fluid flow plate integrates multiple functions into a single modular component: it serves as a flow distribution element, a condensate drainage guide, and a structural support element. By combining these functions into one piece, the design maintains modular assembly simplicity while effectively managing fluid flow without requiring separate complex systems for each function.
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 design effectively manages condensate accumulation, reduces bacterial growth, and prevents corrosion by ensuring efficient drainage and minimizing condensation within the furnace, thereby extending equipment lifespan and maintaining performance.
Implementation Method 1
a fluid flow plate with misaligned apertures to homogenize fluid flow
Implementation Method 2
primary and secondary heat exchangers
Implementation Method 3
hot combustion gases and condensation
Implementation Method 4
ensuring efficient drainage and minimizing condensation within the furnace
Data Source
AI summary
A furnace has a primary heat exchanger tube, a secondary heat exchanger comprising a plurality of secondary heat exchanger tubes, a hot header configured to provide a fluid flow path between an output of the primary heat exchanger tube to an input of the secondary heat exchanger, and a perforated fluid flow plate disposed at least partially within the hot header.