Urban services are unnoticeable elements of the city unlike new buildings and suburbs development. The sewer municipal system requires constant maintenance to avoid errors and breakages. Being underground it was always a technical question how to clean and repair sewer canals and pipes.
The very first inventions were applied to the Paris sewer system. The Flushing boat was used to move through sewers for manually control and cleaning. The Pills Balls, that were supposed to push and velocity sewer flows, were produced in different sizes as a technical answer for the unreached places of uniform tunnels.The next step in advancing maintenance was self-powered (by engine) equipment that allowed workers to operate overground.1 The further technical improvement, aimed to take workers from manual cleaning and repairing to remote controlling of equipment, came to robotization tools in the end through the automatization and computerization.
Drain-Jet Robotics has high-pressure water serves for cleaning and preparing tunnels and sewer pipelines for their repairs. The video camera allows you to monitor a sewer surface and control a robot in real time, while the data and track recording helps to monitor the sewer tunnels and work operatively and locally. The spot approach of control helps to avoid massive earthworks and optimizes time and resources on fixing breakages and deterioration. Thus Drain-Jet Robotics became a constructor with all additional parts and equipment and a car control room turned into a computer program with navigating robots in a sewer labirint, that is how the real work process of maintaining has turned from tough cleaning to an exciting game.
For proper maintenance sewer lines should be cleaned at least once a year. One Robot with two workers can clean up to 16 Tons KG , from 45 to 100 meters of tunnel in one cleaning session.2 Thus, to clean the municipal sewer system like in Vienna (2400 km), it required 68 robots and 136 workers with everyday cleaning.
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Drain-Jet Robotics advertisement brochure shows one of the latest version of technical cleaning equipment