Why ballast control needs coordinated monitoring
Ballast-system operation is considered together with dock position and structural condition. The operator needs information about levels, pump and valve operation, heel and trim. These data describe one process, so they must be coordinated within a common control system.
Functions of the VID system
The company catalogue describes systems for floating docks of projects 28140, 28140C and 16880K. The system controls ballast operations, submerging and raising, and monitors levels, pumps and valves. Equipment and algorithms are matched to the arrangement of each particular dock.
Heel, trim and deflection
Dock position is described by more than overall draught. Monitored parameters include heel, trim and structural deflection. Design requires measurement points, signal sets, display methods and permissible operating limits to be defined. Numerical limits are established by the documentation for the relevant facility.
Monitoring keel-block loads
During docking, the vessel transfers loads to its supports. Monitoring keel-block loads provides data about force distribution during operations. This information must be considered together with dock position and ballast-system parameters. Measurements do not replace the approved docking procedure or the actions of personnel.
The company’s project experience
Customers named in the VID catalogue for this field include SSK PJSC and Monolit Central Design Bureau JSC. These systems combine electrical engineering, automation and equipment manufacture. This helps the customer coordinate mechanism control and measurement processing within a single engineering system.
Inputs for system development
Initial data describes the ballast arrangement, pumps and valves, sensor locations, monitored parameters and control-station layout. Operating modes, alarms and interaction with other systems are then agreed. Examples of marine control consoles and distribution equipment are available in the VID catalogue.
Illustrative scenes are based on project materials.
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