Boiler Relief Valve Float Switch Shutoff for Leak Overflow Prevention

The patent implements a feedback mechanism where a float switch continuously monitors the water level in the collection container. When water leaks from the pressure relief valve and accumulates in the container, the float rises and triggers an electrical signal to shut off the gas supply to the burner. This closed-loop feedback system automatically responds to leakage conditions and eliminates continuous flooding by stopping the heating process that causes pressure buildup.

The patent introduces a collection container as an intermediary element between the pressure relief valve and the environment. Instead of allowing leaked water to directly flood the basement, the container collects and contains the leaking water, directing it to a safe location. This intermediary structure prevents the harmful effect of water leakage from spreading to surrounding areas while maintaining the pressure relief function.

The patent implements preliminary action by proactively detecting water leakage at an early stage through the float switch mechanism. Before significant damage can occur from continuous leakage, the system automatically shuts off the gas supply to the burner, preventing further pressure buildup and additional water leakage. This preliminary protective action stops the harmful process before it can cause extensive damage to the building and contents.

The continuous monitoring feedback system ensures that any water leakage from the pressure relief valve is immediately detected and responds by shutting down the heating system. This feedback loop prevents the escalation of damage that would occur with continuous operation, as the system automatically stops functioning when leakage is detected, thereby protecting against progressive harm.

The patent enhances the boiler safety system by adding a multi-functional monitoring capability. The new float switch-based detection system serves multiple purposes: it detects water leakage from the pressure relief valve, triggers automatic shutdown of the heating system, and prevents both water damage and pressure buildup. This universal monitoring mechanism complements the existing temperature and pressure sensors, creating a comprehensive safety network that addresses multiple failure modes simultaneously.

The patent introduces a new detection intermediary (the float switch in the collection container) that specifically targets water leakage detection, a function that the existing temperature and pressure sensors cannot perform. This intermediary element translates the physical presence of leaked water into an electrical signal that triggers the safety shutdown, thereby bridging the detection gap for water leakage while maintaining the existing temperature and pressure control functions.