It is the first time in China to use a special rob

2022-07-29
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It is the first time in China to use a special robot to clean the marine organisms on the jacket of a drilling platform.

recently, the home marine organism cleaning robot of Zhejiang University successfully conducted sea trial in Pinghu oil and gas field in the East China Sea, which is the first time in China to use a special robot to clean the marine organisms on the jacket of a drilling platform. The robot for cleaning the drilling platform is within plus or minus 5 meters of the sea level. Due to the tide, offshore drilling

recently, Zheda ham (home) marine biological cleaning robot successfully conducted the sea trial in Pinghu oil and gas field in the East China Sea. This is the first time that a special robot has been used in China to clean the marine organisms on the jacket of the drilling platform

robot for cleaning the drilling platform

within the range of plus or minus 5 meters of the sea level, due to the tide, the steel pipe surface of the offshore drilling platform periodically contacts with the air and the sea to provide reference water for everyone. The rapid propagation and growth of marine organisms such as oysters and barnacles not only increases the weight of the drilling platform, but also increases the area of the drilling platform affected by the ocean current, bringing potential safety hazards

at present, the way to solve the hidden danger of marine organism stacking is to manually clean it regularly. Divers carry sandblasting tools to dive, and polish and remove the marine organism and rust on the surface. CNOOC has more than 200 offshore drilling platforms, which are cleaned every four years. On average, more than 50 platforms need to be cleaned every year. The cost of cleaning each platform is as high as 1million to 2million yuan, with an average annual cost of nearly 100million yuan

before that, although there were reports on the development of underwater cleaning robots, there was no precedent for their actual use on oil jackets. A robot dedicated to marine biological cleanup of jackets is a challenge. Entrusted by Shanghai oilfield construction engineering branch of China National Offshore Oil Corporation, the home research team led by Professor yangcanjun of Zheda successfully developed Zheda ham (home) marine biological cleaning robot, which can automatically clean marine organisms within 100 meters below the water surface

achieve the same effect of manual cleaning

in the first sea trial in late August, the robot's cleaning speed reached 21.7 square meters/hour, and the cleaning water pressure was 20 MPa, which was far lower than the 70 MPa manual cleaning water pressure that would bring different performance, achieving the same cleaning effect

professor yangcanjun introduced that this robot adopts cavitation jet, duct self-adaptive, visual navigation control and other technologies. The robot is equipped with an adaptive permanent magnet adsorption module, which can realize stable adsorption on the surface of steel pipes with different diameters, and can span between pipes with different diameters

in a "selfie" video sent back by the robot, we can clearly see its working mode: firmly clinging to the pipe wall, spraying water full of bubbles, and the accumulated shells are "swept" away. The sprinkler is a new type of design, which produces a large number of cavitation bubbles by making water flow through the cavitation nozzle at a high speed. The cavitation bubble is sprayed to the cleaned surface with the jet, and collapses in a narrow small area and generates a micro jet to remove the surface attachments

the sea trial results show that this new robot improves the simplicity and operability of marine operation, and can completely replace divers in underwater biological cleaning. Therefore, CNOOC must pay attention to the pretreatment department if it wants to achieve good electroplating results. Relevant experts believe that it can be popularized and applied to ship cleaning, bridge cleaning and detection in the future; Due to the plastic deformation of the wedge-shaped mouth and severe eversion, the robot is amphibious. Other high-altitude dangerous operations on the platform, such as painting and detection, can also be completed by the robot

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