Combined Bypass Filter Element Module for HVAC
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Solution Overview
Problem
Current HVAC platforms cannot effectively provide a bypass solution for filter elements, limiting their ability to cover a wide range of operating conditions and requiring two parallel insertion slots with unregulated bypass, which is inefficient and inflexible.
Innovation Solution
A combined bypass filter element module with a frame, a filter element, and a bypass flap device that allows for parallel arrangement, enabling a single insertion slot to function as both a filter and a bypass, with a pivotable or sliding flap for adjustable airflow control, and a replaceable filter element for long-term use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a one-filter solution is used, then the device complexity is reduced, but the adaptability to cover complete requirement spectrum is insufficient
Solution Approach 1:
The filter element is designed to serve multiple functions: it acts as both a filtration element and a bypass closure element. When the bypass flap is closed, the filter element filters the air flow; when the bypass flap is open, the filter element can be bypassed while still maintaining its position in the housing. This multi-functionality allows a single filter element to cover various operating conditions without requiring additional components.
Solution Approach 2:
The bypass flap device is merged with the filter element assembly, creating an integrated unit where the bypass flap can be positioned to either allow air flow through the filter element or bypass it entirely. This combination eliminates the need for separate bypass mechanisms and allows flexible configuration within a single insertion slot.
2Adaptability or versatility
If a two-filter solution with serially connected filter elements is used, then the requirement spectrum coverage is improved, but the device complexity increases
Solution Approach 1:
The filter element serves dual purposes as both a filtration component and a bypass closure, eliminating the need for separate bypass mechanisms. This multi-functional design allows the system to achieve complex filtration configurations without proportionally increasing device complexity.
Solution Approach 2:
The bypass flap is designed to be movable, allowing dynamic adjustment between different operational modes (bypass open/closed). This dynamic element enables the system to adapt to different requirement spectra without requiring multiple static filter configurations.
3Adaptability or versatility
If two parallel insertion slots are used with one vacant for bypass, then the bypass capability is provided, but the regulation of bypass flow is not possible
Solution Approach 1:
The bypass flap is designed as a movable component that can be positioned at different angles or positions to regulate the bypass flow dynamically. This allows precise control over the amount of air that bypasses the filter element, enabling flow regulation that was previously impossible with fixed insertion slot configurations.
Solution Approach 2:
The bypass flap device is integrated into the filter element assembly, allowing the filter element itself to control the bypass flow without requiring external regulation mechanisms. The filter element assembly serves its own bypass regulation needs through the integrated flap mechanism.
4Productivity
If the entire insertion slot is provided by a large filter element, then the filter capacity is maximized, but the flexibility for low requirement applications is lost
Solution Approach 1:
The bypass flap mechanism allows dynamic adjustment of the effective filter capacity. When the bypass is closed, the entire filter element surface area is utilized for filtration, maximizing filter capacity. When the bypass is opened, a portion of the air flow can bypass the filter, effectively reducing the active filter capacity to match lower requirement applications. This dynamic adjustment provides flexibility across different application scenarios.
Data Source
AI summary
A combined bypass filter element module is disclosed. The combined bypass filter element module includes at least one filter slot for receiving at least one filter element that can be arranged in the at least one filter slot. A bypass flap device is arranged in a flow direction in parallel with the at least one filter slot.