V-Shaped Chiller Filter Assembly with Segmented Frame
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Solution Overview
Problem
Existing filter assemblies face challenges in effectively securing and mounting to the angled, V-shaped intake surfaces of air-cooled liquid chillers, particularly at tight triangular apex corners, due to inaccessibility and tight tolerances.
Innovation Solution
A filter assembly and kit with a four-sided assemblable frame, supported by perimeter tracks and reinforced edges with grommets, along with twist/toggle lock fasteners, that can accommodate varying geometries and securely attach to the chiller's angular surfaces without damaging the coils during installation or servicing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If traditional filter assemblies are used to secure to angled V-shaped intake surfaces, then mounting simplicity is maintained, but the ability to accommodate tight corner tolerances and varying geometries deteriorates
Solution Approach 1:
The frame is divided into four separate sides that can be independently positioned and assembled. Each side includes tracking members with slots that can accommodate fasteners at various positions, allowing the frame to adapt to tight corner tolerances and varying geometries of V-shaped chiller assemblies without requiring a completely custom-designed complex structure.
Solution Approach 2:
The frame design incorporates universal features including tracking members with slots that can accommodate multiple fastener types and positions, clips that can engage with various flange configurations, and a modular assembly approach that can adapt to different chiller geometries. This multi-functionality allows the same basic frame structure to serve multiple mounting scenarios without sacrificing precision.
2Reliability
If filter assemblies are positioned over V coil surfaces, then filtration effectiveness is improved, but the risk of damaging sensitive coils during installation worsens
Solution Approach 1:
The frame and tracking members are pre-assembled before installation, allowing for precise positioning and alignment to be established in advance. The clips are designed to engage with flange surfaces before the filter screen contacts the coil surfaces, creating a protective barrier that prevents direct contact between installation tools and the sensitive coils during the mounting process.
Solution Approach 2:
The frame structure acts as an intermediary between the mounting hardware and the sensitive coil surfaces. The tracking members with slots provide a controlled interface for fastener insertion, while the clips engage with flange surfaces to secure the assembly without requiring direct contact with or application of force to the coil surfaces, thereby protecting them from damage.
3Area of stationary object
If multiple angled filters are mounted to successive coil assemblies, then comprehensive coverage is improved, but the difficulty of mounting at tight apex corners worsens
Solution Approach 1:
The frame design incorporates dynamic adjustment capabilities through tracking members with slots that can accommodate fasteners at various positions along the length of each frame side. This allows the frame to be adjusted and positioned to accommodate tight apex corners and varying geometries of successive coil assemblies, making the mounting process more accessible despite the complex angular configurations required for comprehensive coverage.
Data Source
AI summary
A filter and kit assembly for securing to one or more intake surfaces associated with a V-shaped heat exchanger unit. A screen includes a reinforced edge, within which is configured a plurality of spaced apart grommets aligning with and receiving therethrough engaging portions of the fasteners. In one variant, a frame is constructed for supporting the fasteners and attached filter and which is subsequently secured by clips against a flange surface surrounding the intake opening. In a further variant, the screen is configured in wrap-around fashion for supporting against first and second consecutively arranged intake openings along with an interconnecting intermediate flange surface.