Cleaning systems and associated methods for extraction or ventilation ducts

Abstract

A cleaning system (100) for preventing the build-up of fats, oils and/or greases in extraction and ventilation ducts. The cleaning system comprises: a pressurised gas source (102), a fluid supply tank (104) for containing a cleaning fluid, the fluid supply tank comprising a tank gas inlet (110) fluidly connected to the pressurised gas source and a tank fluid outlet (112), a nozzle (106), wherein the nozzle comprises a nozzle gas inlet (114), a nozzle fluid inlet (116) and a nozzle outlet (118), and wherein the pressurised gas source (102) is fluidly connected to the nozzle gas inlet (114) and the fluid supply tank outlet (112) is fluidly connected to the nozzle fluid inlet (116), and a controller (108), the controller configured to control flow of gas from the pressurised gas source to the fluid supply tank gas inlet, and to the nozzle gas inlet. A method of installation of the cleaning system (100) for extraction and ventilation ducts comprising: providing the cleaning system (100), and locating the nozzle (106) in a duct of the extraction and ventilation ducts. A method of preventing the build-up of fats, oils or grease on an internal surface of a ventilation or extraction duct, the method comprising: providing the cleaning system (100) and operating the cleaning system, via the controller (108) to expel the cleaning fluid from the nozzle outlet (118) into the ventilation or extraction duct.

Dependencies are inferred from the claim text.