Rupture Disc Thermal Insulation Segmentation
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Solution Overview
Problem
Rupture discs in air conditioning systems experience a cold bridge formation due to thermal insulation extending beyond the flange area, which impedes access to fasteners and hinders proper opening during explosions.
Innovation Solution
The introduction of flange-side thermal insulation that fills the niche between the thermal insulation on the plant side and the rupture disc side, covered by a metal cover to protect against rain, with loose insulating material like mineral wool filling the gap, ensuring compressibility and effective pressure reduction during explosions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If thermal insulation is provided on the flange area to reduce thermal bridges, then thermal insulation performance is improved, but access to fasteners is impeded and proper opening during explosions is hindered
Solution Approach 1:
The thermal insulation is segmented into two distinct parts: system-side thermal insulation that extends to the flange area, and rupture disc-side thermal insulation that is limited to the central area and does not extend over the flange area. This segmentation allows the flange area to remain accessible for fastener installation while still providing thermal insulation where needed, resolving the contradiction between thermal insulation performance and ease of operation.
Solution Approach 2:
Different regions of the rupture disc assembly are provided with different insulation characteristics. The system-side insulation extends to the flange area to prevent thermal bridges, while the rupture disc-side insulation is deliberately limited to avoid covering the flange area. This local differentiation ensures that thermal insulation is provided where structurally appropriate while maintaining operational accessibility where needed.
2Loss of energy
If thermal insulation on the rupture disc side extends over the flange area to improve thermal insulation, then thermal bridge reduction is improved, but proper opening during explosions is hindered
Solution Approach 1:
The rupture disc-side thermal insulation is segmented to be confined only to the central area and explicitly prevented from extending over the flange area. This segmentation ensures that the insulation provides thermal protection where needed while leaving the flange area completely clear for proper fastener attachment and explosion response, resolving the contradiction between thermal insulation and reliability.
Solution Approach 2:
The insulation quality is locally optimized by providing rupture disc-side insulation only in the central area where thermal protection is most needed, while deliberately excluding the flange area to maintain its structural and functional integrity during explosion events. This local quality differentiation resolves the contradiction between thermal protection and reliable operation.
3Loss of energy
If thermal insulation on the system side extends beyond the flange area to improve thermal insulation, then thermal insulation performance is improved, but fastener accessibility is worsened
Solution Approach 1:
The system-side thermal insulation is provided with extended coverage to the flange area to maximize thermal insulation performance and eliminate thermal bridges, while the rupture disc-side insulation is locally limited to the central area. This asymmetric local quality assignment allows the system-side insulation to provide comprehensive thermal protection without compromising fastener accessibility, as the rupture disc-side insulation is the limiting factor for access.
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 configuration reduces thermal bridges, ensures proper functioning of the rupture disc, and provides rain protection while maintaining accessibility for fastener installation, enhancing the overall safety and efficiency of the rupture disc in air conditioning systems.
Implementation Method 1
insulation on the flange side is provided, which can be attached to the flange area in a manner that fills the niche after the flange area has been fastened to the edge of the opening
Implementation Method 2
This can be done by introducing loose insulating wool into the gap between the thermal insulation on the plant side and the thermal insulation on the rupture disc side
Implementation Method 3
subsequently, this gap or the niche between the side wall of the thermal insulation on the rupture disk side and the flange area is covered by the edge of a cover, so that the thermal insulation on the flange side is protected against rain
Implementation Method 4
In the event of an explosion following an ignition, a central area of the bursting disc can detach from the flange area surrounding it and pivot about a tang, similar to a hinge, into an open position for the purpose of pressure reduction
Data Source
Figure 1~2
Figure 3~4
AI summary
The invention relates to a rupture disc (1) with a flange area (2) for attachment to an edge of an opening (21) of a wall (20) of an air handling system, the central area (3) of which adjoins the flange area (2) along a predetermined breaking line (5) is provided with rupture disc-side thermal insulation (4) which does not extend over fastening elements (11) of the flange area (2), so that a niche (16) is formed which is bounded by the flange area (2) and the rupture disc-side thermal insulation.A flange-side thermal insulation (15) is provided, which, after the flange area (2) has been attached to the edge of the opening (21), can be attached to the flange area (2) in a manner that fills the recess (16), and a cover (12) that can be attached to the burst disc (1), which, when attached, projects over the flange area (2) in such a way that the thermal insulation arranged in the recess (16) is covered in a direction away from the flange area (2).