Flexible Evacuation Valve for Pulse Jet Air Cleaner Dust Removal
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Solution Overview
Problem
Existing pulse jet air cleaner systems face challenges in efficiently evacuating dust and water during cleaning operations, particularly in maintaining effective valve arrangements that are easy to assemble, space-efficient, and capable of field modification for water fording operations while ensuring cost-effectiveness and simplicity.
Innovation Solution
The implementation of a flexible evacuation valve arrangement with a sleeve member extending around the air cleaner housing, held by a hoop clamp, allowing one edge to flex and open under internal pressure for dust and water evacuation, and optionally sealed during water fording with a removable clamp.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a traditional rigid valve arrangement is used, then structural strength is maintained, but ease of assembly and space efficiency deteriorate
Solution Approach 1:
The patent employs a flexible valve member made of elastomeric material that can be simply positioned over the dust ejector port and secured with a minimal clamp assembly. This flexible membrane approach eliminates complex rigid valve mechanisms while providing effective dust evacuation functionality through its ability to flex and seal.
Solution Approach 2:
The valve assembly is divided into separate functional components: the flexible valve member, the clamp assembly, and the dust ejector port. This segmentation allows for easy assembly and disassembly, enabling field modification and maintenance without requiring complex integration or specialized tools.
2Volume of moving object
If a compact valve arrangement is used, then space requirements are reduced, but ease of field modification deteriorates
Solution Approach 1:
The valve assembly's modular segmented design with separately installable clamp and valve member allows field modification by simply removing the clamp and replacing the valve member if needed, maintaining ease of repair while keeping the overall assembly compact.
Solution Approach 2:
The flexible valve member provides dynamic sealing capability that adapts to the port geometry, eliminating the need for precise manufacturing tolerances and complex adjustment mechanisms, thus reducing space while maintaining field modifiability.
3Device complexity
If a simple valve arrangement is used, then device complexity is reduced, but reliability in water fording operations deteriorates
Solution Approach 1:
The flexible valve member dynamically seals against the dust ejector port, creating a reliable barrier against water ingress during fording operations. The elastomeric material's inherent flexibility allows it to conform to the port geometry and maintain sealing under varying pressure conditions without complex adjustment mechanisms.
Solution Approach 2:
The elastomeric valve member acts as a flexible sealing membrane that reliably prevents water entry during fording while keeping the overall device simple. The material's properties provide consistent sealing performance across different operating conditions without requiring complex control systems.
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 solution enhances the ease of assembly, reduces space requirements, allows for field modification, and provides cost-effective and simple operation, effectively managing dust and water evacuation during pulse jet cleaning and water fording operations.
Implementation Method 1
The valve member is mounted such that an edge or portion of the valve member is free to flex away from the air cleaner assembly, during a pulse jet operation
Implementation Method 2
pulse jet air cleaning systems... allowing for selected pulse jet cleaning of serviceable filter cartridges therein
Data Source
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AI summary
Methods, techniques, and constructions are provided for use to apply an evacuation valve arrangement (110). on an air cleaner assembly that is configured for pulse jet operation. The or each valve member (s) (Ilia, 111b) has opposite edges (116,117). One of the edges (116) is secured in place by holder arrangement 120. An example evacuation valve arrangement is provided which comprises a valve member in the form of a sleeve that extends completely around a sidewall portion of an air cleaner housing of a pulse jet air cleaner. Examples are depicted in which the sidewall portion can comprise: a portion of a housing sidewall section that surrounds an installed filter cartridge, in use; a portion of an access cover (100); or, a drop tube secured to a portion of the housing, for example either on an access cover; or on another portion of a housing. The or each valve member (s) (Ilia, 111b) has opposite edges (116,117). One of the edges (116) is secured in place by holder arrangement 120. Specific features and alternatives are described. Also, methods of assembly and operation are described.