Modular Diaphragm Pumping System Pulsation Reduction
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Solution Overview
Problem
Current positive displacement, single unit double diaphragm pumps experience pulsation, excessive vibration, maintenance challenges, limited valve options, and system shutdowns due to complex fastening and high center of gravity, which hinder efficient fluid handling and reliability.
Innovation Solution
A modular diaphragm pump system comprising two pump modules with vertical strokes and a low center of gravity, connected by Y-couplers for fluid and gas distribution, allowing for pulsation-free flow, easy maintenance, and modular design for flexibility and redundancy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If a single unit double diaphragm pump with common shaft is used, then the pump structure is compact, but pulsation and vibration increase
Solution Approach 1:
The pump system is divided into separate pump modules, each with its own drive mechanism. Instead of one common shaft driving multiple diaphragms, each module has independent diaphragm assemblies that can be configured to operate in opposition to each other, canceling out pulsation and vibration while maintaining a compact overall structure through modular arrangement.
2Device complexity
If a single unit double diaphragm pump with common shaft is used, then the pump design is simplified, but maintenance difficulty increases
Solution Approach 1:
The pump is designed as modular units with standardized interfaces. Each module can be independently removed and replaced without affecting other modules. Fasteners are designed for quick release, and the modular architecture allows maintenance personnel to service individual modules in isolation, significantly reducing maintenance complexity and time.
Solution Approach 2:
The modular design enables individual pump modules to be quickly disconnected and replaced with spare modules. Rather than performing complex in-situ repairs, failed modules can be rapidly swapped out and sent for refurbishment or replacement, minimizing system downtime and simplifying maintenance operations.
3Device complexity
If a single unit double diaphragm pump is used, then the valve configuration is limited, but system reliability decreases
Solution Approach 1:
Each pump module has its own independent valve train and fluid pathways. This segmentation allows different valve types and configurations to be optimized for each module's specific application requirements. If one module experiences valve failure, the other modules continue operating, maintaining system reliability while allowing flexible valve selection.
Solution Approach 2:
The modular pump system uses standardized valve interfaces and mounting configurations that can accommodate multiple valve types (ball valves, check valves, diaphragm valves, etc.). This universality allows the system to be configured with appropriate valves for different service conditions while maintaining the same basic pump architecture, enhancing both flexibility and reliability.
4Strength
If pump modules are held together with common bolts, then the assembly is secure, but disassembly and maintenance become difficult
Solution Approach 1:
The pump modules are designed with modular fastening systems that use standardized, easily removable fasteners such as clamp mechanisms, bayonet connectors, or quick-release latches instead of traditional multi-bolt assemblies. These fasteners provide sufficient holding strength during operation but can be rapidly disengaged for maintenance, eliminating the need for complex disassembly procedures while maintaining secure assembly.
Data Source
AI summary
A pump system includes: a first coupler that receives a common input feed and provides two input feeds of fluid being drawn into the pump system, a second coupler that receives two output feeds and provides a common output feed of the pumped fluid, and a third coupler that receives a common gas feed providing two gas feeds to drive the pump system; two pumps, each having an inlet to receive a respective input feed, an outlet to provide a respective output feed of the pumped fluid, and a gas inlet to receive a respective gas feed so as to cause pumping action to drive the pump; and a base for holding the couplers with straps for attaching the two pump. The common gas feed causes pumping action in the two pumps and provides a constant almost pulsation free flow.