Drain Pan Overflow Protection Using Active Pumping and Fluid Detection
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Solution Overview
Problem
Existing water heater leak protection systems are limited in their ability to detect and contain leaks effectively, often relying on gravity for drainage and requiring complex installations, which restricts their versatility and ease of use.
Innovation Solution
A portable and easy-to-install overflow protection and monitoring apparatus that uses a submersible centrifugal pump and sensors to detect fluid levels, activate alarms, and direct fluid to a predetermined drainage area, independent of gravity, suitable for various fluid-filled devices and drain pan configurations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If gravity-dependent drainage systems are used, then the system structure is simple, but the system cannot effectively direct fluid away from the source and requires complex installation configurations
Solution Approach 1:
The patent replaces gravity-dependent passive drainage with an active mechanical pumping system. The submersible centrifugal pump mechanically propels fluid through hoses to predetermined drainage areas, eliminating reliance on gravity and enabling flexible drainage direction control in various orientations and locations.
Solution Approach 2:
The patent introduces hoses as intermediary components connecting the pump to drainage outlets. These hoses serve as flexible conduits that can be routed to various locations, enabling the system to direct fluid to predetermined drainage areas independent of gravity and complex structural configurations.
2Reliability
If complex installation systems are used, then the system provides comprehensive leak protection, but the ease of installation is reduced
Solution Approach 1:
The patent divides the leak protection system into separate functional modules: a control unit with sensors, a submersible centrifugal pump, hoses, and drainage outlets. This segmentation allows for easier installation and maintenance while maintaining comprehensive leak protection through coordinated operation of independent components.
Solution Approach 2:
The system incorporates automatic activation through sensors that detect fluid presence and trigger the pump without manual intervention. The control unit autonomously manages pump operation based on sensor inputs, reducing installation complexity and enabling reliable leak protection through self-activating mechanisms.
3Ease of operation
If portable and easy-to-install systems are used, then the ease of installation is improved, but the effectiveness of fluid detection and containment may be reduced
Solution Approach 1:
The patent replaces complex mechanical sensor assemblies with electronic sensors integrated into a control unit. This substitution maintains high fluid detection effectiveness through sensitive electronic detection while significantly improving ease of installation and system portability.
Solution Approach 2:
The control unit serves multiple functions: it processes sensor signals for fluid detection, controls pump activation, and manages system operation. This multi-functionality consolidates components, improving ease of installation while maintaining reliable fluid detection and containment through integrated design.
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 apparatus effectively contains and directs fluid away from the source, preventing damage by activating alarms and ensuring fluid is routed to a predetermined drainage area, enhancing protection and ease of installation across different applications.
Implementation Method 1
submersible centrifugal pump
Implementation Method 2
fluid displacement mechanism
Data Source
AI summary
Overflow protection and monitoring devices capable of coupling to a drainage pan and may include: a drainage line; a base, the base including an input port; a dry section; and a wet section, the input port capable of coupling to the drainage pan; a base cover, the base cover removably coupled to the base, the base cover including a base cover output port capable of coupling to the drainage line; a fluid displacement mechanism located in the wet section, the fluid displacement mechanism including a fluid displacement mechanism output port; a fluid detection mechanism located in the wet section; and a base attachment, the base attachment coupled to the fluid displacement mechanism output port and the base cover output port, the base attachment including an air relief port and back-flow preventer; a control unit capable of energizing the fluid displacement mechanism upon receiving a signal from the fluid detection mechanism.