Carryover Burner Sleeve Layout for Even Water Heating
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Solution Overview
Problem
Existing water heating systems experience uneven and over-heating issues due to the placement of the burner unit inside the heat exchanger, which can lead to performance problems like short cycling, and extending the burner unit length increases the risk of failed ignitions due to longer ignitors.
Innovation Solution
A water heating system design featuring a carryover burner unit with an outer sleeve, inner sleeve, and ignitor, where the outer sleeve has a carryover region and combustion region with specific apertures, and the inner sleeve has a dispersion region, allowing for efficient fuel distribution and combustion while using a short ignitor.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the burner unit is located inside the heat exchanger near the top of the water tank, then heating efficiency is improved, but over-heating and uneven heating of water occurs
Solution Approach 1:
The burner unit is segmented into multiple functional regions: a carryover region with first apertures for flame transport, a combustion region with second apertures for primary combustion, and a dispersion region with third apertures for fuel distribution. This segmentation allows the flame to be carried over to a lower position in the heat exchanger, distributing heat more evenly throughout the water tank while maintaining heating efficiency.
2Temperature
If the burner unit is moved farther down within the heat exchanger, then over-heating is mitigated, but longer ignitors are required which increase the risk of electric current leaks and failed ignitions
Solution Approach 1:
The carryover region acts as an intermediary zone that receives the ignition from the ignitor and transports the flame to the combustion region. This allows the use of a short, reliable ignitor while still achieving lower burner placement for even heat distribution. The first apertures in the carryover region facilitate this flame transport 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
This design mitigates over-heating and uneven heating while ensuring compatibility with a short ignitor, reducing the likelihood of failed ignitions and improving system performance.
Implementation Method 1
The ignitor can be configured to initiate combustion of the fuel in the carryover region
Implementation Method 2
The first plurality of apertures can be configured to transport combusting fuel between the ignitor and the combustion region
Implementation Method 3
The second plurality of apertures can be configured to receive combusting fuel from the first plurality of apertures and can maintain combustion of the fuel within the combustion region
Implementation Method 4
a burner unit for heating the water is located inside a heat exchanger
Data Source
AI summary
The disclosed technology includes carryover burner systems and methods for use with water heating system. The water heating system can include a burner unit having an outer sleeve, and an inner sleeve. The water heating system can also include an ignitor. The outer sleeve can include a carryover region having a first plurality of apertures and a combustion region which can be adjacent to the carryover region, the combustion region including a second plurality of apertures. The inner sleeve can comprise a dispersion region having a third plurality of apertures. The inner sleeve can be located substantially within the outer sleeve.