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Solution Overview
Problem
Existing boiler and steam systems lack a method to safely address water leakage and potential steam explosions, which can cause significant damage and safety hazards due to the absence of a system to detect and respond to pressure relief valve leaks.
Innovation Solution
A system comprising a hollow pipe connected to the pressure relief valve with a water-activated switch that shuts off the heating system and alerts the user to leaks, using a float switch to detect water accumulation and trigger a relay to shut off the gas supply and activate an alarm.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If pressure relief valve is used to prevent pressure buildup, then safety is improved, but water leakage and flooding damage occur when the valve leaks
Solution Approach 1:
The patent introduces an intermediary detection system (float switch or pressure sensor) between the pressure relief valve and the boiler control system. This intermediary detects water accumulation from valve leakage and triggers a shutdown signal, preventing the harmful effects of water flooding while maintaining the pressure relief function.
Solution Approach 2:
The system implements feedback by continuously monitoring the condition around the pressure relief valve (water accumulation or pressure changes) and using this information to automatically shut down the boiler. The feedback loop closes the control circuit, allowing the system to respond to leakage conditions and prevent damage.
2Reliability
If limit switches are used to control temperature and pressure, then operational safety is improved, but water leakage detection capability is lacking
Solution Approach 1:
The patent makes the limit switch system multi-functional by adding water leakage detection capability to the existing temperature and pressure control circuit. The float switch or pressure sensor integrates with the limit switch circuit, allowing a single control system to perform both traditional temperature/pressure limiting and new water leakage detection functions.
Solution Approach 2:
The invention merges the water leakage detection function with the existing limit switch control system. The float switch or pressure sensor is electrically integrated into the limit switch circuit, combining multiple safety functions (temperature control, pressure control, and leakage detection) into a unified control mechanism.
3Productivity
If pressure relief valve leaks are not detected, then system operation continues, but water accumulation causes flooding and secondary damage
Solution Approach 1:
The system takes preliminary action by detecting water accumulation at the pressure relief valve before it can cause significant flooding or secondary damage. The float switch or pressure sensor triggers a shutdown sequence that prevents water from accumulating to harmful levels, addressing the problem before it escalates.
Solution Approach 2:
The feedback mechanism continuously monitors for water accumulation conditions and automatically initiates shutdown procedures when leakage is detected. This closed-loop control prevents continuous operation under harmful conditions by using real-time feedback from the float switch or pressure sensor to control the boiler operation state.
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 further pressure buildup and water spills by automatically shutting down the heating system and notifying the user of leaks, enhancing safety and minimizing damage from potential floods and explosions.
Implementation Method 1
a float switch positioned in the hollow pipe... the float switch is activated when the pipe fills with water
Implementation Method 2
the same float switch may activate the visual and/or audible alarm... or deactivate the heating system or boiler by being wired in series with a limit switch
Data Source
AI summary
A residential and commercial hot water and steam boiler safety system and device that includes at least one hollow pipe, with one plugged or sealed end and a fitting on the other end for connecting the pipe in a substantially vertical mounting position, and at least one two float switch disposed in the pipe and electrically connected in series with a limit switch in the boiler, where the pipe is adopted for the flow and accumulation of water, so that float switch activates as the pipe fills with water and shuts off the boiler by turning off the gas valve, promoting safer boiler and steam boiler 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.