Magnet-Driven Fire Damper for Oxygenerator Moisture Reliability
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing fire dampers for oxygenerators, which use springs as reset driving units, are prone to corrosion and failure due to water vapor carried by oxygen during long-term operations, leading to potential fire-proofing failures.
Innovation Solution
A magnet-driven fire damper for oxygenerators is introduced, utilizing mutually exclusive magnets as the driving unit for the fusible valve core, eliminating the influence of water vapor and ensuring reliable operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a spring is used as a reset driving unit of a fusible plug, then the fire damper can be compact and reasonable in structure, but water vapor will slowly corrode the spring causing rust and even failure during long-term oxygen supply operation
Solution Approach 1:
The patent replaces the mechanical spring-based reset driving unit with a magnet-driven system. The magnet exerts non-contact magnetic force on the fusible plug, eliminating the need for a spring that would be subject to water vapor corrosion. This substitution maintains the compact structure while significantly improving reliability by removing the corrosion-prone mechanical component.
2Ease of manufacture
If a spring is used as the driving unit, then the fire damper can be simple in design, but the spring cannot push the fusible plug in time when an open flame tempering occurs due to corrosion and rust
Solution Approach 1:
The magnet-driven system replaces the spring mechanism, providing immediate magnetic force activation when tempering occurs. The magnet can instantly exert force on the fusible plug without the delays caused by spring corrosion or mechanical degradation, thereby improving response speed while maintaining design simplicity.
Solution Approach 2:
The magnet is pre-positioned in the fire damper assembly, ready to exert force on the fusible plug at any moment. This preliminary positioning ensures that when tempering occurs, the magnetic force is immediately available to push the fusible plug, eliminating response delays associated with corroded springs.
3Volume of stationary object
If a spring is used as the reset driving unit, then the fire damper can be compact, but the spring will fail due to corrosion from water vapor during long-term operation
Solution Approach 1:
The magnet-driven system replaces the spring mechanism, eliminating the corrosion-prone component. The magnet maintains its magnetic properties without degradation from water vapor exposure, thereby extending the service life of the fire damper while maintaining its compact volume.
Solution Approach 2:
The magnetic field created by the magnet provides a non-reactive, inert environment for actuating the fusible plug. Unlike the spring that directly contacts water vapor, the magnet operates through non-contact magnetic force, effectively creating a corrosion-resistant environment that extends the duration of action.
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 magnet-driven fire damper provides continuous and reliable operation by using non-contact magnetic forces, avoiding corrosion issues, and ensuring effective fire-proofing by continuously pushing the fusible valve core forward.
Implementation Method 1
the static magnet and the moving magnet are of the same polarity... mutually exclusive magnets are used as a driving unit
Data Source
AI summary
The present application discloses a magnet-driven fire damper for an oxygenerator, which includes a rear valve housing, a front valve housing and a fusible valve core, and further includes a static magnet and a moving magnet, wherein the static magnet is fixedly mounted at a front end of a middle hole of the rear valve housing and does not affect the passage of oxygen, and the moving magnet is fixedly connected to a rear end of the fusible valve core and is provided opposite to the static magnet; the opposing faces of the static magnet and the moving magnet are of the same polarity. In the present application, a magnet-driven fire damper for an oxygenerator, mutually exclusive magnets are used as a driving unit of a fusible valve core, avoiding the influence of water vapor, and being sensitive and reliable in operation.