CCCC Guangzhou Dredging Company opts for Bakker

August 4, 2020, by Eldin Ganic

Bakker Sliedrecht has won a contract to supply its innovative condition monitoring system for measuring vibration of bearings in submersible motors to trailing suction hopper dredger Jun Yang 1, the largest trailing suction hopper dredger in China at the moment.

Condition monitoring is a way to improve the preventive maintenance of the motor. Analyzing deviations makes it possible to plan maintenance better and early action can be taken in case of malfunctions.

The Dutch system integrator has signed the contract with CCCC Guangzhou Dredging Company (GDC) for the project. The condition monitoring system is engineered in Sliedrecht and installed on site by sister company Bakker Zhangzhou.

Prevent or limit downtime

The vessel can operate at great depths under severe conditions by the submersible pumps on the suction tube, which are equipped with oil-filled low-speed submersible motors, supplied by Bakker Sliedrecht.

The system integrator from Sliedrecht has developed the system to measure the vibrations of the bearings in the motors. Bakker will install new sensors for this purpose that measure the bearings in order to collect and store data. That data is analysed through algorithms, so potential problems and deviations in behaviour or condition are immediately visible.

“If you see something deteriorating in the motor or the bearings, you can intervene immediately to avoid damage. In addition, this system makes maintenance more plannable and predictive,” said technology manager Arend van der Velde and account manager Wim Verlek of Bakker Sliedrecht.

“Without the submersible motors, the ship cannot do its job, so if the bearings have to be replaced, the ship will be out of service. That costs a lot of money. This downtime can be prevented or limited with this system.”