Provided herein are a pipeline inspection system for effectively managing a pipeline by inspecting a state of the pipeline while moving along the pipeline. Moreover, the pipeline inspection system and the maintenance method using the same can improve scale removal efficiency by removing scale accumulated on the inner wall of the pipeline with ultrasonic vibrations, and prevent water leakage due to the corrosion of the inner wall of the pipeline.

Provided herein are a pipeline inspection system for effectively managing a pipeline by inspecting a state of the pipeline while moving along the pipeline. Moreover, the pipeline inspection system and the maintenance method using the same can improve scale removal efficiency by removing scale accumulated on the inner wall of the pipeline with ultrasonic vibrations, and prevent water leakage due to the corrosion of the inner wall of the pipeline.

The invention discloses an NDT device for pipeline, belonging to the field of NDT, including a mobile carrier, which moves with fluid in pipeline or is moved by an actuator; a probe testing assembly, which includes a testing component installed on the mobile carrier and having a testing element in which testing probe is encapsulated; a data processing unit, a first signal conditioning unit and a second signal conditioning unit, wherein the testing probe includes an excitation coil, a receiving coil and a passive resonance coil between the excitation coil and the receiving coil. For the invention, no more magnetizing treatment device is needed for testing, so that the system volume is greatly reduced, thereby reducing the requirement of the testing system of the invention on the internal cleanliness of a pipeline, improving flexibility of equipment in the pipeline of the testing system, and greatly reducing the system cost.

The invention discloses an NDT device for pipeline, belonging to the field of NDT, including a mobile carrier, which moves with fluid in pipeline or is moved by an actuator; a probe testing assembly, which includes a testing component installed on the mobile carrier and having a testing element in which testing probe is encapsulated; a data processing unit, a first signal conditioning unit and a second signal conditioning unit, wherein the testing probe includes an excitation coil, a receiving coil and a passive resonance coil between the excitation coil and the receiving coil. For the invention, no more magnetizing treatment device is needed for testing, so that the system volume is greatly reduced, thereby reducing the requirement of the testing system of the invention on the internal cleanliness of a pipeline, improving flexibility of equipment in the pipeline of the testing system, and greatly reducing the system cost.

A sensor interface module for an inspection robot includes a scissor lift for varied radial positioning of, and a universal sensor mount for mounting, a selected one of a plurality of different sensors. A visual inspection module for the robot includes an inspection unit for simultaneously visually inspecting a first surface facing a first direction and a spaced, second surface facing an opposing, second direction toward the first surface. The inspection unit includes a first visual sensor and a second visual sensor, each visual sensor facing in a direction different than the first and second directions. A first reflector reflects an image of the first surface to the first visual sensor, and a second reflector reflects an image of the second surface to the second visual sensor. A robot system may include the sensor interface module and the inspection unit.

A sensor interface module for an inspection robot includes a scissor lift for varied radial positioning of, and a universal sensor mount for mounting, a selected one of a plurality of different sensors. A visual inspection module for the robot includes an inspection unit for simultaneously visually inspecting a first surface facing a first direction and a spaced, second surface facing an opposing, second direction toward the first surface. The inspection unit includes a first visual sensor and a second visual sensor, each visual sensor facing in a direction different than the first and second directions. A first reflector reflects an image of the first surface to the first visual sensor, and a second reflector reflects an image of the second surface to the second visual sensor. A robot system may include the sensor interface module and the inspection unit.

The present invention discloses a pipeline patrol inspection robot having variable tracks and a control method therefor. The pipeline patrol inspection robot of the present invention includes a robot body, track assemblies symmetrically disposed on a left side and a right side of the robot body, and a movement driving mechanism. The robot body is connected to the track assemblies on the left side and the right side by track fixtures, and track angle adjusting mechanisms are respectively connected between the robot body and the track assemblies on the left side and the right side. By means of the present invention, a track camber angle can be adjusted. In addition, each track angle adjusting mechanism is independent, and has desirable flexibility to adapt to different pipeline environments.

Various embodiments of an amphibious submersible vehicle for use in non-destructive testing of pipe interiors and walls are disclosed herein. In one aspect, the vehicle is operable for amphibious submersible operation such that pipes of various diameters can be inspected under full, partially full, and dry conditions. In another aspect, the vehicle is equipped with a plurality of propellers for travel when fully or partially submerged in water and a plurality of wheels for traveling when in contact with a pipe wall or for traveling over debris. In some embodiments, the vehicle is equipped with a plurality of sensors configured for imaging and navigation which enable the vehicle for pipe inspection and identification of problem areas.

Various embodiments of an amphibious submersible vehicle for use in non-destructive testing of pipe interiors and walls are disclosed herein. In one aspect, the vehicle is operable for amphibious submersible operation such that pipes of various diameters can be inspected under full, partially full, and dry conditions. In another aspect, the vehicle is equipped with a plurality of propellers for travel when fully or partially submerged in water and a plurality of wheels for traveling when in contact with a pipe wall or for traveling over debris. In some embodiments, the vehicle is equipped with a plurality of sensors configured for imaging and navigation which enable the vehicle for pipe inspection and identification of problem areas.

A method for cleaning a coke deposit from an internal surface of a process equipment, comprising removing at least a portion of the coke deposit from the internal surface using a flexible pig comprising a plurality of bristles, without damaging a metal protective layer of the internal surface of the process equipment. A flexible pig for cleaning a coke deposit from an internal surface of a process equipment without damaging a metal protective layer of the internal surface, comprising a flexible body formed of a polymeric material, and a plurality of bristles partially encapsulated by the polymeric material of the flexible body.