Boiler Overflow Preventer Using Float-Switch Water Detection
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Solution Overview
Problem
Existing boiler and steam systems lack a method to safely address water leakage and potential explosions caused by pressure relief valve leaks, which can lead to flooding and significant damage, as current safety measures primarily focus on preventing fires and gas explosions.
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 activates an alarm when water accumulation exceeds a certain level, ensuring the system is disconnected and the owner is notified of the leak.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If pressure relief valve is installed to prevent pressure buildup, then safety against pressure explosions is improved, but water leakage and flooding damage occur when the valve leaks
Solution Approach 1:
A hollow pipe acts as an intermediary component between the pressure relief valve and the environment. The pipe collects water leaking from the pressure relief valve and directs it to a designated drainage area, preventing water from spreading into the basement and causing flooding damage while maintaining the pressure relief function.
Solution Approach 2:
The harmful effect of water leakage is extracted and isolated from the main system by routing it through a separate hollow pipe to a drainage location. This separates the water leakage pathway from the basement environment, preventing the harmful flooding effect while the pressure relief valve continues to function.
2Reliability
If limit switches are used to shut off the system at high temperature/pressure, then safety against pressure explosions is improved, but no notification is provided to the owner about leaks
Solution Approach 1:
A float switch is installed in the hollow pipe to provide feedback about the water leakage condition. When water accumulates in the pipe from the leaking pressure relief valve, the float rises and triggers an electrical switch that activates a visual alarm (light) and/or audible alarm, notifying the owner of the leakage problem.
Solution Approach 2:
The float switch acts as an intermediary sensing mechanism that translates the physical presence of leaking water into an electrical signal that activates alarms. This intermediary converts the leakage information into a notifyable format for the owner.
3Stress or pressure
If pressure relief valve leaks are allowed to continue, then system pressure is maintained, but water accumulation causes flooding and secondary damage
Solution Approach 1:
The hollow pipe serves as a mediator that intercepts leaking water from the pressure relief valve before it can cause flooding. The pipe provides a controlled pathway for the leaked water to reach a safe drainage location, eliminating the harmful flooding effect while allowing the pressure relief valve to continue its pressure maintenance function.
Solution Approach 2:
The water that would otherwise be harmful (causing flooding) is converted into a useful signaling mechanism. The leaked water rises the float switch, which triggers alarms to notify the owner of the leakage condition, transforming the harmful leakage into a beneficial warning system.
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 solution effectively prevents further pressure buildup and water spillage by automatically shutting down the heating system and alerting the owner to the leak, enhancing safety and minimizing damage from water-related issues.
Implementation Method 1
a float switch disposed inside the hollow pipe for detecting water in the pipe
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.