Heat exchanger transfer tubes
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Heat exchangers with ultra-low NOx capabilities face design challenges in meeting spacing requirements and standards, particularly when using sealed premix burner systems, which can lead to increased height and performance issues due to the need to elevate components, compromising compliance with height restrictions and efficiency.
Innovation Solution
Incorporating transfer tubes that connect the header plate at the end of heat exchanger tubes to the collector box, allowing for the drainage of condensation and maintaining system pressure, while being designed to comply with regulatory standards and adapt to various environmental conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-generated harmful factors
If sealed premix burner systems are used to achieve ultra-low NOx emissions, then emissions are reduced, but the height of the climate control unit increases due to the need to elevate components
Solution Approach 1:
The transfer tube is configured to extend in a horizontal direction from the heat exchanger tube array to the collector box, rather than requiring vertical elevation of components. This dimensional reconfiguration allows the system to maintain ultra-low NOx emissions while complying with height restrictions by redistributing component positions along the horizontal axis.
2Reliability
If components are elevated to meet spacing requirements, then regulatory standards are met, but the overall height of the unit increases
Solution Approach 1:
The transfer tube enables compliance with spacing requirements by extending horizontally from the heat exchanger tubes to the collector box, distributing components along the horizontal dimension rather than vertically. This maintains regulatory compliance while avoiding height restrictions.
3Productivity
If transfer tubes are used to connect heat exchanger tubes to collector box, then condensation drainage is improved, but device complexity increases
Solution Approach 1:
The transfer tube serves as an intermediary component that connects the heat exchanger tube array to the collector box, providing a dedicated pathway for condensation drainage. This single intermediary element improves drainage efficiency without requiring complex multi-component systems.
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 transfer tubes enable efficient drainage of condensation, maintain system pressure, and allow for compliance with regulatory standards, enhancing the operational efficiency and reducing waste, while accommodating ultra-low NOx emissions without increasing the overall height of the climate control unit.
Implementation Method 1
At least one wall can be configured to receive the first fluid and the second fluid simultaneously
Data Source
AI summary
A transfer tube for a thermal transfer device can include at least one wall having an inner surface and an outer surface, where the inner surface forms a cavity, where the at least one wall further has a first end and a second end. The first end can be configured to couple to a terminus of a heat exchanger of the thermal transfer device. The second end can be configured to couple to a collector box of the thermal transfer device. At least a portion of the at least one wall can be disposed in a vestibule of the thermal transfer device. The cavity can be configured to simultaneously receive a first fluid that flows from the first end to the second end and a second fluid that flows from the second end to the first end.