A Cleaning Machine for Cleaning a Surface

摘要

A cleaning apparatus for cleaning a surface in which cleaning solution is distributed to the surface and substantially simultaneously extracted along with the dirt on the surface in a continuous operation as it moves along the surface is provided. The cleaning apparatus includes a housing and a liquid distribution system operatively associated with the housing. The liquid distribution system includes a fluid source providing a supply of the cleaning solution, a detergent tank providing detergent to the cleaning solution and a distributor fluidly connected to the fluid source for distributing the cleaning solution to the surface. A liquid recovery system is provided and includes a suction nozzle and a recovery tank removably mounted to the housing and in fluid communication with the suction nozzle. A suction source is in fluid communication with the suction nozzle for applying suction to draw the cleaning solution and dirt from the surface through the suction nozzle and into the recovery tank. A filter assembly, including a polytetrafluoroethlyene film, is provided for filtering recovered cleaning solution. An adjusting device detects the concentration of detergent in the cleaning solution and adjusts the flow of the detergent to the cleaning solution to a predetermined value.