Pipe and Sewer Imaging
The 360-degree movable camera mounted on the tractor allows us to capture photographs and video recordings of the current condition of wastewater pipes, providing a clear and precise view of the problem.
In the method known as ‘CCTV (closed circuit TV) inspection,’ specialized robots are inserted into the sewer. These robots communicate their movements and data through a cable, and the camera system mounted on the robot can be directed as desired by the operator. The robot can capture 360-degree images and move forwards and backwards to provide a detailed inspection of the sewer system. It is crucial that the robot is completely watertight, as any ingress of water or other liquids can cause significant damage to its electronic components. These robots are designed to be pressurized with air or nitrogen at specific levels. Before sending the robot into the line, it is essential to check the pressure of the air or nitrogen. The data from the sensors and cameras within the robot is transferred in real-time to a specialized software on a computer. Along with assessing the general structure and flow within the sewer, and making other detections,
Sewer Imaging Systems"CCTV"
Pipe and sewer imaging are divided into two types: wheeled tractor systems and push-type systems. Wheeled tractor systems are typically mounted inside a vehicle for use, whereas push-type systems are portable and can be carried by hand.
Pipe and Sewer Imaging
WHERE THEY ARE USED:By inspecting sewer, stormwater, and collector pipelines, as well as pipelines carrying chemical and industrial waste, we can precisely and pinpointedly detect blockages and faults within the system. In newly installed lines, such as those used for sewage, drinking water, irrigation, and drainage systems, we monitor slope, cracks, and joints across various types of pipelines (AÇB, CTP, UPVC, HDPE, Steel, Ductile Iron, Concrete, Reinforced Concrete). This ensures quality control of the installed pipes. Our inspections can begin at diameters as small as 20mm and, with the use of different attachments, can extend to larger diameter pipes.
WHY THEY ARE USED:Used for the detection of faults in wastewater and stormwater networks during construction, usage, and operational phases. This method enables pinpoint excavation for repairs, rather than the extensive excavation of the entire faulty line. It is utilized for: - Inspecting newly installed sewer systems for manufacturing quality and slope verification. - Assessing old sewer lines for issues such as fractures, dents, cracks, blockages, and slope deviations. - Identifying the root causes of recurring faults in canal systems. - Evaluating the effectiveness of cleaning operations on jet-cleaned lines, and assessing the condition before and after cleaning. - Facilitating future work by providing visual and report-based documentation upon completion, thereby streamlining subsequent efforts and saving time through rapid results analysis.
Key Aspects
The condition of the pipe being used is assessed. The pipe’s maximum fill level should not exceed 10% to 15%. While the water level can be 100%, if the amount of water inside is too high, the robot may be submerged, leading to a loss of visibility. This prevents accurate results from being obtained.
Key Aspects
To perform pipe and sewer inspection, the water flow in the line is cut off, cleaning is carried out, the vehicle is positioned appropriately at the inspection access point, warning signs are placed to delineate the work area, and then the inspection process can commence.
POINTS TO CONSIDER DURING FIELD OPERATIONS:
• The system's safety manual should be read thoroughly.
• The safety of the operator, followed by the robot, is of utmost importance.
• The operator must wear a high-visibility vest and gloves, and traffic cones must be placed around the vehicle.
• Before deploying the robot into the sewer, it's essential to verify the air pressure if air was used or nitrogen pressure if nitrogen was used.
• The robot should not be used in pipelines where the pressure exceeds its capacity.
• The robot must be lowered into the sewer with extreme care, and the cable reel should be used to prevent any damage to the cable.
• When retracting the robot after capturing images, if the speed of the cable and reel are not synchronized, the cable may get caught under the robot, causing operational issues.
• In the event of any suspected malfunction, immediately press the emergency stop button and conduct a thorough inspection.
• One of the most critical aspects is hygiene. The robot must be thoroughly washed with water to disinfect it, and it should be securely stabilized to prevent any shaking or movement.
THEORETICAL EXAM QUESTIONS:
• HOW MANY TYPES OF SEWER IMAGING CAMERAS ARE THERE?
• WHY SHOULD SEWER IMAGING ROBOTS BE USED?
•HOW MANY DEGREES CAN THE CAMERAS ON TRACTOR-WHEELED ROBOTS ROTATE?
•WHAT SHOULD BE DONE FIRST IN THE EVENT OF ANY MALFUNCTION?
•GIVEN THERE IS A PROBLEM WITH THE ROBOT'S WATERPROOFING, WHAT ISSUES MIGHT WE ENCOUNTER?
•WHAT SHOULD BE DONE TO AVOID DAMAGING THE ROBOT'S CABLE?
•WHAT SHOULD BE DONE FIRST WHEN POSITIONING THE VEHICLE NEAR THE MANHOLE?
•WHAT SHOULD BE DONE FIRST WHEN THE ROBOT IS REMOVED FROM THE SEWER?
•WHAT OTHER DATA, BESIDES THE IMAGE OF THE PIPE, DOES THE ROBOT PROVIDE?
•F THE ROBOT AND THE CABLE ARE NOT COORDINATED WHILE RETRACTING THE ROBOT, WHAT ISSUE WILL ARISE?