Filter Arrangement With Segmented Adapter Collar
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Solution Overview
Problem
Existing filter arrangements with neck-shaped protuberances on plate-shaped filter holders are cumbersome for replacement, requiring skilled handling and lacking effective sealing mechanisms, which complicates the process and can lead to leakage under raw gas pressure.
Innovation Solution
A filter arrangement with an adapter collar having limbs parallel to the protuberance and sealing elements that can be inserted radially into the neck-shaped protuberance, combined with a quick release safety latch for secure attachment and enhanced sealing, ensuring a lasting seal even under suction pressure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a two-part adaption collar with flange-like protruding attachment sheath is used to secure filter elements, then the filter element can be attached to the plate-shaped filter holder, but the handling during filter replacement requires a certain degree of skill and achieving a lasting seal becomes complicated
Solution Approach 1:
The adaption collar is divided into two parts: a first part with a first limb parallel to the protuberance for insertion from the raw gas side, and a second part with a second limb parallel to the plate for insertion from the opposite side. This segmentation allows each part to be inserted independently through different paths, simplifying the replacement process while maintaining reliable sealing through the coordinated action of both parts.
Solution Approach 2:
Instead of inserting the entire adaption collar from one side as in conventional designs, the invention allows insertion from both sides: the first limb is inserted from the raw gas side through the neck-shaped protuberance, while the second limb is inserted from the opposite side through the plate. This inverted approach to insertion direction simplifies handling and achieves reliable sealing without requiring skilled operation.
2Reliability
If filter cartridges are screwed in a sealing manner on a plate-shaped filter holder, then the filter elements can be securely attached, but the cost is high when filter cartridges need to be replaced despite regular counter-pressure cleaning
Solution Approach 1:
The adaption collar is segmented into two parts that can be independently inserted and positioned, allowing the filter element to be attached without requiring threaded connections. This simplifies the attachment mechanism, making filter replacement more cost-effective while maintaining reliable attachment through the dual-limb structure that secures the filter element in place.
Solution Approach 2:
The adaption collar acts as an intermediary component between the filter element and the plate-shaped filter holder. By providing a standardized adaption collar design with two limbs that can be inserted from opposite sides, it creates a simple yet reliable interface that reduces replacement costs compared to threaded screw connections while maintaining secure attachment.
3Ease of operation
If the insertion of filter cartridge from the top is used, then the filter element can be positioned on the plate-shaped filter holder, but it is an impediment in many applications and disadvantageous for the sealing function because of the raw gas pressure applied from below
Solution Approach 1:
The adaption collar is segmented into two parts inserted from opposite sides: the first limb is inserted from the raw gas side through the neck-shaped protuberance, and the second limb is inserted from the opposite side through the plate. This segmentation allows the filter element to be secured from both sides, counteracting the raw gas pressure from below and maintaining reliable sealing while simplifying the insertion process.
Solution Approach 2:
Instead of inserting the filter element from the top against raw gas pressure as in conventional designs, the invention inverts the approach by inserting the adaption collar limbs from both sides. The first limb inserts from the raw gas side through the protuberance, and the second limb inserts from the opposite side, allowing the filter element to be positioned without impeding applications and maintaining sealing function despite raw gas pressure from below.
Data Source
AI summary
The invention relates to a filter arrangement comprising a plate-shaped filter holder (12) provided with at least one stem-type protruberance (13) having an opening (11) said filter holder (12) being used to receive a filter element (14) in a sealed manner for each protuberance on the raw gas side of the filter holder. In order to ensure that the filter is changed easily with sufficient filtering safety, each filter element (14) is provided with an adapter collar (15) comprising at least one limb (15B; 15D) parallel to the protruberances. Said limb can be placed, from the raw gas side, inside or over the protruberance. A sealing arrangement (16) provided comprises sealing elements (16A, 16B) which are parallel to both the plates and to the protruberances and are used for the at least partial join between the protruberance and the adapter collar.