Our customer had been contracted to supply a pre-piling template to ensure the accurate installation of piles for an offshore wind farm project. This type of work is within their core business of marine foundation solutions and piling equipment for nearshore / offshore.
Their customer had requested the inclusion of an air bubble curtain as a noise mitigation measure. This is an environmental consideration to dampen and absorb the sound of underwater construction to prevent hearing loss and noise harassment of marine mammals.
In addition, we were asked to include control of the water jetting system which is used to enable suction release of the mud mats when the rig is being lifted and moved.
We collaborated with our customer to outline the concept, then to design and develop a bespoke solution. Investing a great deal of engineering time, we were able to simplify the design overall to reduce build complexity and potential for failure as the system had to work first time. There was no opportunity for ongoing development or prototype testing, once it was put into the sea, there was no turning back.
We worked with the customer to provide validation of their air requirements and produced a full set of 3D models for their approval.
The solution delivered was a complex electro-pneumatic system consisting of a series of actuators and a control system mounted into subsea pressure vessels with a subsea distribution manifold for the air. There were also a number of control panels and a touchscreen interface for installation into the control cabin.
PSI brought together the skills and capability of a number of component manufacturers, along with our own engineering expertise to create a system that was fit for purpose in one of the most demanding environments that exists, the sea.
Subsea Actuator Pressure Vessels, each containing an IP67 electrical actuator controlled ball valve. (Vessels manufactured by Omega)