Motorized Roller Assembly for Heat Exchanger Coils
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The assembly of large-size heat exchangers with multiple helical coils is laborious and prone to deformation due to the manual insertion process, which complicates the alignment and stability of coils within radial baffles, making it difficult to form a stable cylindrical structure.
Innovation Solution
An apparatus with motorized roller means and sliding guides facilitates the axial rotation and alignment of coils during assembly, utilizing motorized pantograph raising devices and radial baffles with vibration assistance to ensure precise and stable insertion, allowing for efficient assembly of large and complex heat exchanger units.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If manual insertion method is used, then flexibility in handling is maintained, but assembly time and labor intensity increase significantly
Solution Approach 1:
The apparatus divides the coil insertion process into distinct functional segments: the support zone receives and positions coils, the insertion device guides coils through baffles, and motorized roller means provide rotation. This segmentation allows each component to be optimized independently while working together to achieve automated assembly, resolving the contradiction between productivity and device complexity.
Solution Approach 2:
The apparatus employs motorized roller means that can dynamically adjust rotation speed and direction during insertion. The insertion device can move radially to accommodate different coil positions. This dynamic capability enables automated high-speed assembly while maintaining adaptability, thus improving productivity without excessive complexity.
2Manufacturing precision
If manual assembly is used, then device complexity is low, but manufacturing precision and coil alignment deteriorate
Solution Approach 1:
The apparatus replaces manual mechanical alignment with motorized roller means that provide controlled rotation and positioning. The insertion device with radial movement capability automatically guides coils through baffles with precise alignment. This substitution of manual operations with automated mechanical systems achieves high manufacturing precision while the modular design keeps device complexity manageable.
Solution Approach 2:
The insertion device acts as an intermediary between the support zone and the final coil position. It provides guided transition through baffles, ensuring precise alignment without requiring the entire apparatus to be highly complex. The motorized rollers serve as intermediaries for rotational positioning, achieving precision through localized controlled mechanisms.
3Stability of the object's composition
If coils are inserted without rotation, then insertion process is simpler, but mechanical stability and deformation resistance worsen
Solution Approach 1:
The motorized roller means provide dynamic rotation during the static insertion process. This controlled rotation allows coils to be properly oriented and seated on supporting elements, ensuring mechanical stability. The dynamic rotational capability is integrated into the insertion mechanism itself, so the stability benefit is achieved without adding separate complex rotational subsystems.
Solution Approach 2:
The apparatus merges the rotation function with the insertion function by integrating motorized rollers into the insertion device. Instead of having separate rotation and insertion mechanisms, the rollers provide both functions in one integrated system, achieving coil stability through rotation while keeping device complexity low through functional consolidation.
4Productivity
If automated motorized assembly is used, then productivity and precision improve, but device complexity and initial cost increase
Solution Approach 1:
The automated apparatus is divided into modular functional zones: support zone for coil reception, insertion device for guided insertion, and motorized rollers for rotation. This segmentation allows each module to be independently optimized and maintained, reducing overall system complexity while maintaining high productivity through automated operation of each segment.
Solution Approach 2:
The motorized roller means serve multiple functions: they provide rotation during insertion, support coils during positioning, and can adjust speed and direction as needed. This multi-functionality reduces the number of separate components needed, thereby improving productivity while limiting the increase in device complexity.
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 apparatus enables rapid and precise assembly of large heat exchanger coils, maintaining mechanical stability and reducing deformation, thus simplifying the construction of large-scale heat exchangers with multiple coils.
Implementation Method 1
the motorized roller means 13, which are present on the sides and along the support zone 11, cause axial rotation of the spiral coil during insertion
Implementation Method 2
During insertion, the coils present in the support zone and/or being rotationally inserted into the support zone are made to vibrate
Data Source
Figure 1
Figure 2~6
Figure 3
AI summary
An apparatus (10) for assembling concentric spiral coils for exchangers comprises a support zone (11) which is intended to receive the spiral coils arranged concentrically on top of each other and an insertion device (12) which inserts one at a time the spiral coils towards the support zone (11). Motorized roller means (13) cause the axial peripheral rotation of the spiral coil during insertion thereof into the support zone (11) such as to obtain a combined screwing movement within the support zone and above the spiral coils already inserted into the support zone. A vibration may be applied during insertion in order to facilitate the operation.