Pneumatic Waste Fluid Transfer With Float-Activated Pump Control
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Solution Overview
Problem
Current methods for transferring waste fluids from hand-carried containers to bulk storage containers are prone to accidental spillage, pose safety hazards, and require compliance with stringent governmental regulations, while also risking fire and explosion due to electrical components.
Innovation Solution
An automated fluid transfer system utilizing an air-powered diaphragm pump with a shallow collection pan and float-activated directional valve for automatic fluid transfer, eliminating the need for electricity and secondary containment, and featuring a manual mode for added flexibility and safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If manual carrying of waste fluids in smaller containers is used, then flexibility in transport is improved, but spillage risk increases
Solution Approach 1:
The patent introduces an intermediate bulk storage container as a mediator between the collection point and final disposal location. This intermediate container with capacity of 20-100 gallons reduces the frequency of manual trips while maintaining flexibility through movable design, and significantly reduces spillage risk through its larger, more stable structure compared to small hand-carried containers.
2Extent of automation
If electricity is used for pumping, then automation is improved, but fire and explosion risks increase
Solution Approach 1:
The patent replaces electric pumps with a pneumatic diaphragm pump system that uses compressed air to transfer waste fluids. This eliminates electrical components in the hazardous environment, removing fire and explosion risks while maintaining automated pumping capability through air pressure control and float-actuated valves.
Solution Approach 2:
The patent substitutes the electric pump system with a purely mechanical pneumatic system using compressed air pressure and float-actuated mechanical valves. This mechanical substitution eliminates electrical hazards while achieving automated fluid transfer through pressure differentials and mechanical float mechanisms.
3Loss of time
If bulk storage containers are kept near work site, then transfer time is reduced, but regulatory compliance difficulty increases
Solution Approach 1:
The patent extracts the waste fluid from the collection pan immediately upon accumulation, using the pneumatic pump system to transfer it directly to the bulk storage container. This prevents the collection pan from becoming a de facto storage container, thereby eliminating the need for secondary containment regulations while maintaining rapid transfer capability.
Solution Approach 2:
The patent implements a self-regulating system where the float automatically activates and deactivates the pneumatic pump based on fluid level in the collection pan. This self-service mechanism ensures immediate pump activation when fluid reaches a certain level, preventing accumulation and eliminating the need for regulated storage capacity in the collection pan.
4Adaptability or versatility
If collection pan stores fluid, then operational flexibility is improved, but regulatory burden increases
Solution Approach 1:
The patent extracts waste fluid from the collection pan immediately when it accumulates, using the automated pneumatic pump system to transfer it to the bulk storage container. This prevents the collection pan from functioning as a storage container, thereby eliminating secondary containment regulatory requirements while maintaining operational flexibility through the pan's temporary holding capability.
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
The system ensures quick, safe, and compliant fluid transfer, reducing spill risks, minimizing fire hazards, and avoiding regulatory requirements for fluid storage, while enhancing ergonomics and reducing costs.
Implementation Method 1
an air powered diaphragm pump, which is operatively connected to a float. As the fluid level in the bottom of the pan rises, the float lifts so as to activate an air-supplied directional valve which powers the pump.
Implementation Method 2
the float lifts so as to activate an air-supplied directional valve which powers the pump. Once the pump removes sufficient fluid, the float falls and the air supply is terminated to automatically turn off the pump.
Data Source
AI summary
An automated fluid transfer system and method allows a person to pour fluid, such as used motor oil, into a collection pan which automatically pumps the fluid to a bulk storage tank, without secondary containment in the collection pan. The system utilizes an air powered pump, thereby eliminating the use of electricity which creates fire and explosion hazards. A float rises and falls in response to fluid in the pan, so as to automatically turn on and turn off the pump. An alternative manual mode is provided to allow fluid to be sucked by the pump from a container directly into the bulk storage tank, while bypassing the collection pan.