Heater Coil Support Arms for Torque-Stable Hot Water Cylinders
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Solution Overview
Problem
The existing methods for securing a heating coil within a hot water cylinder are inadequate during transportation and installation, as they fail to effectively manage torque forces and vibrations, leading to potential loosening of the coil and weakening of the welds, which compromises the cylinder's functionality and makes repairs challenging due to closed ends.
Innovation Solution
A support system with adjustable arms that span and engage the inside walls of the cylinder, featuring securing means such as throughholes and high-friction surfaces to retain the coil, reducing damage from torque forces and allowing for secure attachment with ties or clips, and optionally using multiple supports offset radially for enhanced stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the coil is secured to the cylinder using welds during manufacturing, then the coil is firmly attached and manufacturing efficiency is improved, but the welds are weakened by torque forces and vibrations during transportation and installation
Solution Approach 1:
The support divides the coil stabilization function into multiple arms (typically three) spaced at 120° intervals, with each arm independently engaging the cylinder wall. This segmentation distributes the torque forces and vibrations across multiple attachment points, preventing any single weld from bearing excessive stress during transportation and installation.
Solution Approach 2:
The support arms extend radially outward from the coil axis in a direction perpendicular to the coil windings, creating a three-dimensional structure that spans the space between the coil and cylinder wall. This dimensional arrangement allows the support to intercept torque forces before they reach the welds, providing stabilization in multiple spatial dimensions.
2Adaptability or versatility
If the cylinder is transported horizontally and then turned to vertical orientation, then installation flexibility is improved, but strain is placed on the coil-cylinder joints during reorientation
Solution Approach 1:
The support is installed on the coil during manufacturing while the cylinder is in horizontal orientation, establishing the coil's position and orientation before transportation. The support arms are pre-positioned to engage the cylinder wall at optimal points that will resist torque forces during subsequent reorientation to vertical position, preventing strain on the welds during the transition.
Solution Approach 2:
The support structure acts as a cushioning element between the coil and cylinder wall, absorbing and distributing the forces generated during horizontal-to-vertical reorientation. The arms engage the cylinder wall at points that maximize resistance to torque forces, providing protective cushioning against the strain that would otherwise be placed on the welds during installation.
3Reliability
If a support structure with multiple arms is used to stabilize the coil, then coil stability during transportation is improved, but the device complexity increases
Solution Approach 1:
The support structure performs multiple functions: it stabilizes the coil during transportation, distributes torque forces across multiple arms, provides attachment points for securing the coil, and maintains proper coil orientation within the cylinder. This multi-functionality justifies the increased structural complexity by consolidating several stabilization and securing functions into a single integrated component.
Solution Approach 2:
The support arms are designed with specific local characteristics: the outer surfaces are shaped to match the curvature of the cylinder wall for optimal engagement, the arms are spaced at 120° intervals for uniform force distribution, and the arms have varying lengths or angles optimized for different coil positions. These localized quality enhancements maximize stability while minimizing overall 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 support system effectively transfers forces to the cylinder walls, reducing damage to the coil and ensuring secure attachment, even during transportation and installation, thereby maintaining the coil's stability and functionality while minimizing material usage and facilitating easy installation.
Implementation Method 1
The support therefore transfers forces on the coil to the walls of the cylinder thereby reducing any damage to the coil
Data Source
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AI summary
A support (10) for a hot water cylinder heating coil (13) is disclosed. The support (10) is connectable to the coil (13) and so sized to span the cylinder and to engage the internal walls of the cylinder. The support reduces the torque forces experienced by the coil (13). The support can have a number of arms extending from a central region and the ends of the arms can be profiled to better engage the cylinder. Connection of the support to the coil can be by means of a tie or clip, the support including one or more through apertures to facilitate fixing.