Power generation device utilizing water flow fall of sewage drainage pipe

The utility model provides a power generation device utilizing water flow fall of a sewage drainage pipe, which relates to the technical field of hydropower stations and comprises an installation dam body, a sewage drainage ditch is buried in the installation dam body, the installation of the sewage drainage ditch has height fall, and the larger the height fall is, the higher the potential energy of water flow falling is. Then the multiple sets of pressure sensors are connected with a reader through lines to convert the signals into numerical signals, and then the numerical signals are electrically connected with the generator through wires, so that direct and continuous flowing water flow can be converted into electric energy through the thermocouple effect, and then the generator is controlled to work through an arranged PLC control end; and therefore, the generator can conveniently convert potential energy generated by water flow falling into electric energy to achieve the purpose of power generation, and