Float-Switch Overflow Preventer for Sewer Backup Shutoff
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Solution Overview
Problem
Existing boiler and steam systems, as well as sewerage and drainage systems, lack effective safety measures to prevent water leakage and pressure-related issues, which can lead to flooding, damage, and health risks due to the absence of warning mechanisms for leaks or backups.
Innovation Solution
A safety device, known as the Overflow Preventer, which includes a hollow pipe with a float switch that connects to the pressure relief valve, activating an alarm and shutting off the system when water accumulation exceeds safe levels, thereby preventing further pressure buildup and alerting users to potential hazards.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If pressure relief valves are installed on boilers and steam systems, then pressure buildup is prevented, but water leakage and flooding damage can still occur without warning
Solution Approach 1:
The patent implements a feedback mechanism by installing a float switch in the hollow pipe that continuously monitors water accumulation from pressure relief valve leakage. When the float rises due to water accumulation, it triggers an alarm system that provides real-time feedback to users, enabling them to take corrective action before flooding damage occurs.
Solution Approach 2:
The hollow pipe serves as an intermediary component between the pressure relief valve and the float switch alarm system. It collects and channels water leakage from the pressure relief valve to a centralized location where the float switch can detect it, thereby mediating the detection process and enabling early warning of potential flooding hazards.
2Device complexity
If sewerage and drainage systems operate without monitoring, then system simplicity is maintained, but water and sewage backups cause damage and health risks
Solution Approach 1:
The float switch alarm system provides continuous monitoring feedback for sewerage and drainage systems. When water or sewage accumulates to dangerous levels in the hollow pipe, the float rises and triggers an alarm, giving users timely warning to prevent backup damage and health hazards while maintaining relatively simple system architecture.
3Reliability
If limit switches are used to control boiler temperature and pressure, then operational safety is improved, but water leakage from pressure relief valves remains undetected
Solution Approach 1:
The patent adds a separate feedback loop specifically for detecting water leakage from pressure relief valves. The float switch in the hollow pipe provides independent monitoring of leakage conditions, complementing the existing limit switch temperature and pressure control system and filling the detection gap for leakage information.
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 Overflow Preventer effectively shuts down the heating system or boiler to prevent damage and alerts users to leaks or backups, enhancing safety and reducing the risk of flooding and health hazards in residential and commercial settings.
Implementation Method 1
a float switch positioned in the hollow pipe... activating an alarm and shutting off the system when water accumulation exceeds safe levels
Data Source
AI summary
A residential and commercial sewerage and water drainage safety system and device that includes at least one hollow pipe, with a plugged or sealed top end and a fitting on the bottom end for connecting the pipe in a substantially vertical mounting position into the sewerage or water drainage system, and at least one float switch disposed in the pipe and electrically connected with a water shut off valve, where the pipe is adopted for the flow and accumulation of fluid, so that the float switch activates as the pipe fills with fluid and shuts off the water valve, promoting safer sewerage and water drainage system operation. Additional float switches positioned above or below in the hollow pipe may provide additional functions, such as a warning light and sound to the owner, or a notification via a telephone or cell phone system or through the home network or Wi-Fi system.