Tank Access Chamber Sensor Testing Without Sump Entry
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Solution Overview
Problem
Current tank access chambers require physical entry for inspection and maintenance, which is unsafe and inefficient, and compatibility issues between components can impair system function and longevity.
Innovation Solution
A tank access chamber system with a remotely monitored and serviced liquid sensor, allowing for automatic function checking and remote installation/removal of sensors, along with strategic redundancies like dual-wall storage tanks and magnetic sensor retainers for safe and efficient maintenance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a person physically enters the tank access chamber for inspection and maintenance, then direct access to equipment is achieved, but safety risks and operational inefficiency increase
Solution Approach 1:
The patent replaces manual physical inspection with automated sensing systems. Sensors monitor liquid levels, temperature, and other parameters inside the tank access chamber, eliminating the need for personnel to physically enter the chamber while maintaining monitoring capabilities.
Solution Approach 2:
The system enables self-diagnostic capabilities through automated sensors and monitoring equipment that continuously assess the condition of components within the tank access chamber without requiring human intervention, allowing the system to monitor itself safely.
2Measurement precision
If sensors are installed inside the sump for liquid level monitoring, then liquid presence detection is achieved, but sensor malfunction or false readings may occur
Solution Approach 1:
The patent incorporates feedback mechanisms where sensors continuously monitor liquid levels and provide real-time data to the control system. The system adjusts operations based on this feedback, and includes provisions for testing sensor functionality to ensure accurate readings and detect malfunctions promptly.
Solution Approach 2:
The system includes preliminary testing capabilities that allow sensors to be tested before full operation begins. This ensures sensors are functioning correctly and reduces the risk of false readings during actual operation.
3Extent of automation
If remote testing capability is added to the sensor system, then maintenance without physical entry is enabled, but system complexity increases
Solution Approach 1:
The patent designs the testing device to perform multiple functions: it can test sensor functionality, verify liquid level detection accuracy, and diagnose potential malfunctions. This multi-functionality reduces the need for separate specialized equipment for each testing scenario.
Solution Approach 2:
The testing system is divided into modular components that can be independently installed and configured. The testing device communicates with sensors through standardized interfaces, allowing the system to be built incrementally and maintained more easily.
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
Facilitates regular inspection and maintenance without physical entry, ensuring long-term system performance, safety, and compatibility between components.
Implementation Method 1
a sensor having a distal end disposed within the sump, the sensor providing a liquid presence indication responsive to a liquid in the sump being at least at a threshold liquid level
Implementation Method 2
in the testing configuration the distal actuator changes a physical configuration of the sensor to cause the sensor to provide the liquid presence indication when the liquid is below the threshold liquid level
Data Source
Figure 1
Figure 2~3
Figure 4~4A
AI summary
A method of assessing a function of a sensor, the method comprising: installing a sensor in a sump of a fuel dispensing system, such that the sensor extends downwardly into the sump to monitor for fluid infiltration into the sump; and after installing, assessing the function of the sensor without physically accessing the sump.