Dense Phase Pump Housing for Fast Wear-Part Replacement
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Dense phase powder coating systems face challenges in serviceability and assembly due to complex designs and the need for frequent replacement of wear parts like pinch valves and barrier filters, which complicates maintenance and increases downtime.
Innovation Solution
A modular dense phase pump design with two housings attached by a single releasable fastener allows easy access and replacement of components, along with alignment features and off-axis purge air entry to simplify maintenance and reduce clutter in the system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a complex dense phase pump design is used, then the system can deliver powder coating material effectively, but the serviceability and maintenance difficulty increase
Solution Approach 1:
The pump is divided into multiple modular housing sections that can be independently removed and serviced. The first housing contains the powder delivery mechanism while the second housing contains the purge air mechanism, allowing targeted maintenance without disassembling the entire pump assembly.
Solution Approach 2:
Wear parts such as pinch valves and barrier filters are extracted as separate replaceable components within the modular housing structure. This allows these specific parts to be removed and replaced without disassembling the entire pump, significantly improving serviceability.
2Strength
If multiple fasteners are used to attach pump housings, then the assembly is secure, but the time to replace components increases
Solution Approach 1:
The fastening system is segmented into a single primary fastener that secures the modular housing sections together, rather than using multiple distributed fasteners. This single fastener design maintains secure assembly while enabling rapid disassembly for component replacement.
3Reliability
If top-mounted purge hoses are used, then the purge function is achieved, but the system clutter and manageability increase
Solution Approach 1:
The purge air inlet is repositioned from a top-mounted configuration to an off-axis side-mounted configuration. This dimensional change in the purge air entry point eliminates the need for vertical purge hoses, reducing system clutter while maintaining effective purge functionality through lateral air introduction.
Data Source
AI summary
A dense phase pump has two housings that are attached together using a single releasable fastener. The fastener can be released to allow the two housings to be separated thereby providing access to replaceable components. The replaceable components may include one or more pinch valves or one or more barrier elements. A pinch valve for a dense phase pump has a shape or profile for aligning the pinch valve when the pinch valve is installed in a pinch valve body. The pinch valve optionally has two end flanges, with each end flange having a shaped periphery. The two end flanges may have the same size and shape so that the pinch valve can be installed in either of two orientations that are inverse. A dense phase pump has a pump chamber that can be purged by purge gas that enters the pump off-axis from a purge path axis.