Adjustable Float Switch Pneumatic Tank Filling Control
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Solution Overview
Problem
Current tank filling systems are prone to human error and mechanical failures, leading to overfilling and underutilization of tank capacity, resulting in environmental hazards, increased costs, and inefficient operations.
Innovation Solution
A pneumatically operated system with an adjustable float switch that automatically controls the tank valve to prevent overfilling and maximize tank capacity by allowing pressurized air to flow only when the tank is not full, using a float that sets a predetermined liquid level and communicates with a pneumatically actuated valve to stop filling when the maximum capacity is reached.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If visual sight gauges are used to monitor tank fill level, then the operator can observe the liquid level, but human error and lack of continuous monitoring lead to overfilling
Solution Approach 1:
The system enables automatic overfill prevention through self-actuating mechanisms. The float switch automatically detects liquid level and triggers the pneumatic valve closure without requiring continuous human observation or intervention, making the system monitor and protect itself
Solution Approach 2:
The patent replaces manual visual monitoring with an automated mechanical sensing system. The float switch mechanically detects liquid level and automatically actuates the pneumatic valve, eliminating reliance on human observation and response
2Loss of information
If digital gauges with alarms are used to provide numeric readings, then the operator receives quantitative feedback, but electronic failures and movement during transportation cause incorrect information
Solution Approach 1:
The patent replaces electronic digital gauges with a purely mechanical float switch system. The mechanical float and switch assembly provides reliable level detection without electronic components that can fail or be affected by motion, using mechanical buoyancy and contact principles
Solution Approach 2:
The system uses pneumatic actuation through a pneumatic valve controlled by the float switch. This pneumatic mechanism provides reliable actuation without electronic components, using compressed air to open or close the valve based on float position
3Productivity
If operators manually measure fill level with tape measures, then they can assess current capacity, but configuration variations prevent accurate readings and lead to underfilling
Solution Approach 1:
The float switch system automatically determines the correct fill level for each tank configuration through its adjustable design. The system self-adapts to different tank shapes and sizes by positioning the float at the appropriate height, eliminating the need for manual measurement and calculation
Solution Approach 2:
The patent employs an adjustable float switch that can be repositioned to accommodate different tank configurations. This dynamic adjustment capability allows the same system to work accurately across various tank shapes and sizes, unlike fixed tape measure methods
4Object-affected harmful factors
If tanks are underfilled to prevent overfill, then overfilling is avoided, but tank capacity is not maximized leading to wasted trips and increased costs
Solution Approach 1:
The float switch provides continuous feedback on liquid level to the pneumatic valve control system. This feedback mechanism allows the system to know precisely when the tank reaches its maximum safe capacity, enabling operators to fill tanks completely without risk of overfilling, thus maximizing transport efficiency
Solution Approach 2:
The automated mechanical control system replaces conservative manual underfilling practices. By providing precise automatic control, the system enables operators to fill tanks to their true maximum capacity rather than arbitrarily stopping early, eliminating wasted capacity
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 effectively prevents overfilling, ensures tanks are filled to their maximum capacity, reduces the risk of environmental incidents, lowers operational costs, and minimizes the need for additional labor and equipment during filling operations.
Implementation Method 1
an adjustable float switch having a float configured to float in liquid that is filled into a container
Implementation Method 2
pressurized air can be communicated from the float switch to a pneumatically actuated tank valve disposed in a supply line
Data Source
AI summary
A system and related method of filling tanks is provided so that tanks do not attain an overfill condition and/or so the tanks are filled to a maximum specified capacity. The system includes an adjustable float switch having a float configured to float in liquid that is filled into a trailer tanker, a mix tank, a frac tank, a storage tank and a variety of other tanks. The float can be set so that when the liquid attains a maximum level and associated volume, the float switch opens so that pressurized air can be communicated from it to a pneumatically actuated tanker valve disposed in a supply line. This shuts off the flow of liquid through the supply line and into the tank. The system can be operable in a various modes, such as a filling mode, a filled mode, a manual emergency shutoff mode and/or a manual reset mode.