METHOD AND DEVICE FOR INSPECTING AND RESTORING DUCTS

摘要

The device is formed of: a remote-controlled vehicle (1) having expandable, longitudinal rolling means; a head having sensor means and/or thermal spraying means (4) disposed on the vehicle, and which head can be suitably positioned and oriented; electrical, pneumatic and/or hydraulic connections for powering, controlling and manoeuvring the vehicle (1) and the thermal spraying device (4); and a set of expandable transverse wheels. The method comprises: introducing, positioning and moving said device forward in the duct; detecting parameters using the sensor means and/or thermally spraying metal.