Heating Unit With Dual Flow Outlets For Vehicle Body Drying
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional temperature control systems for drying vehicle bodies lack flexibility in adapting temperature profiles to changing conditions, as they rely on a single recirculation air circuit with uniform energy levels, which limits efficient energy recovery and temperature adjustment.
Innovation Solution
The system incorporates a heating unit with two flow outlets to generate recirculation air flows with different energy levels, allowing for flexible temperature profile adjustments by dividing the recirculation air into sub-flows and using dedicated blowers and heat exchangers with separate burners, along with temperature sensors for precise monitoring and adjustment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single recirculation air circuit with uniform energy levels is used, then the system structure is simple, but the temperature profile flexibility is limited
Solution Approach 1:
The heating unit is divided into multiple heating zones (first heating zone with first heat exchanger and second heating zone with second heat exchanger), each capable of independent temperature control. This segmentation allows different recirculation air flows to have different energy levels, enabling flexible temperature profiles in the drying tunnel while maintaining a relatively compact system structure.
Solution Approach 2:
Different sections of the recirculation air circuit are given different thermal characteristics through dedicated heat exchangers and burners. The first recirculation air flow is heated to a first temperature level while the second recirculation air flow is heated to a second temperature level, creating local quality differences that enable adaptable temperature profiles throughout the drying tunnel.
2Loss of energy
If multiple heat exchangers with separate burners are used, then energy recovery efficiency improves, but device complexity increases
Solution Approach 1:
The system recovers thermal energy from the recirculation air that would otherwise be wasted. By extracting heat from the recirculation air flows and transferring it to fresh air through heat exchangers, the system maximizes energy recovery. The multiple heat exchangers are arranged to efficiently capture and reuse thermal energy at different stages of the recirculation process.
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 approach enables more flexible and efficient temperature control in the drying tunnel, allowing for finer temperature adjustments and improved energy recovery by enabling the use of heated recirculation air at different points, enhancing the drying process's adaptability to changing conditions.
Implementation Method 1
the heating unit comprises a heat exchanger device into which the hot primary gas can be passed and in which air from the temperature-control chamber is heated by hot primary gas
Implementation Method 2
a burner device with which primary gas can be produced
Data Source
AI summary
A device for controlling the temperature of, and in particular for drying, objects, in particular vehicle bodies, having a housing which integrates a temperature-control chamber that includes at least one air outlet and at least one air inlet. The temperature-control chamber is assigned at least one heating unit in which it is possible to generate a hot primary gas flow and to which it is possible to supply, from the air outlet, air that is to be heated. The heating unit includes a heat exchanger device into which the hot primary gas can be guided and in which it is possible to heat air from the temperature-control chamber using hot primary gas, which air can be supplied, as heated recirculation air, in a circuit via the at least one air inlet back to the temperature-control chamber. The heating unit includes at least a first and a second flow outlet via which heated recirculation air leaves the heating unit.