Patent ID: 8686867

Claim:
An abnormal discharge alarm device for a steam trap, applied in a steam trap having a discharge port for discharging a fluid, the abnormal discharge alarm device comprising: a power generation component, comprising: a housing, connected to the discharge port and having a plurality of induction coils; a rotor, pivoted to the housing, rotating by receiving the fluid from the discharge port, and further having a plurality of magnetic elements, wherein the induction coils cut magnetic lines of force of the magnetic elements to generate an induced electric power when the rotor rotates; and a rectification and voltage regulation circuit, for performing rectification and voltage regulation on the induced electric power to obtain a self-generated electric power; and a control circuit, having a predetermined threshold value, the control circuit receiving and detecting the self-generated electric power to obtain a detection result, and sending an alarm signal when the detection result exceeds the predetermined threshold value.