Magnetic Separator Connection Assembly for Tool-Free 28 mm Pipework
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Solution Overview
Problem
Existing connection assemblies for magnetic separators in central heating systems face challenges with larger pipe sizes, particularly with 28 mm pipework, as push-fit connectors are unreliable and require large tools for screw connections, which can cause damage and leakage due to torsional forces, and are difficult to disconnect without damaging the separator housing.
Innovation Solution
A connection assembly featuring a fitment with a threaded connector and a removable force transfer element that allows hand-tightening and controlled disconnection, reducing the risk of damage and leakage, and a two-part sleeve design for the magnet assembly that maintains a strong magnetic field while being thin enough to accommodate larger systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If screw connections with large spanners are used for 28 mm pipework, then reliable connection is achieved, but the separator housing may be damaged due to large torsional forces and leakage may occur
Solution Approach 1:
A connection assembly with a fitment and removable force transfer element is introduced as an intermediary between the screw connection and the separator housing. The force transfer element engages with the fitment to provide mechanical advantage, allowing the connection to be tightened securely without applying excessive torsional forces directly to the plastic housing ports, thus preventing damage and leakage while maintaining connection reliability
2Ease of operation
If push-fit connectors are used for 28 mm pipework, then ease of connection is improved, but the connectors are unreliable and difficult to disconnect simultaneously
Solution Approach 1:
The unreliable push-fit mechanical connection system is replaced with a threaded screw connection system that provides reliable and predictable fastening. The threaded mechanism allows for controlled tightening and maintains secure connection under varying conditions, while the connection assembly design enables both inlet and outlet connections to be made and disconnected systematically
3Reliability
If threaded connections are tightened securely, then connection reliability is improved, but disconnection becomes difficult due to hardened seals
Solution Approach 1:
The connection assembly is segmented into multiple components: a fitment that receives the port, a threaded connector for securing, and a removable force transfer element. This segmentation allows the force transfer element to be removed before disconnection, facilitating easier separation of the connector from the fitment even after prolonged service, while still providing secure connection during operation
4Ease of manufacture
If plastic ports are used in separators, then manufacturing ease is improved, but the ports are vulnerable to damage from large torsional forces
Solution Approach 1:
The connection assembly is designed to cushion and distribute the tightening forces before they reach the plastic ports. The fitment and force transfer element act as protective intermediaries that absorb and distribute the mechanical stresses, preventing concentration of forces that could cause cracks or damage to the plastic ports, while still allowing secure connection
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 solution enables secure and reliable connection and disconnection of magnetic separators in larger central heating systems without damaging the housing, while maintaining effective magnetic separation, and allows for easier maintenance and assembly, reducing the need for large tools and minimizing the risk of leakage.
Implementation Method 1
a magnet assembly surrounded by a two-part sleeve, the magnet assembly comprising a plurality of magnets arranged in an alternating polarity pattern
Implementation Method 2
the magnet assembly comprising a plurality of magnets arranged in an alternating polarity pattern
Data Source
AI summary
A connection assembly is disclosed for connecting a magnetic separator into a central heating system circuit, the magnetic separator including a housing, a separation chamber within the housing, and externally threaded inlet and outlet ports extending from the housing. The connection assembly comprises: a fitment adapted to be received within at least one of the ports of the separator, the fitment including a bore for carrying fluid from/to the central heating circuit to/from the separator; a threaded connector disposed around the bore for securing the fitment to the or each port, the threaded connector having a hand grip area for facilitating tightening of the connector by hand; and a removable force transfer element receivable between the fitment and the threaded connector for transferring force between the threaded connector and the fitment.