Dive Control The Vertech containerised Dive Control unit provides a complete solution to managing every aspect for the ongoing dive operation. The dive control is split into two sections allowing for separate working areas for the dive supervisor and the inspection coordinator/engineer. The dive control room is fitted with a Nitrox dive control panel, full duplex (round-robin) communications unit, diver depth data logging system, digital video recording blackbox unit, video correction equipment and associated system safety equipment that complies (and exceeds) the requirements from IMCA DO23. The inspection control room is fitted with inspection level digital video recording systems, video overlay equipment, a communications station to the inspection diver and room for task specific inspection equipment integration. The unit is extremely portable and can be rapidly mobilised as it has all equipment fitted within a standard 20 DNV 2.7.1 offshore container and all service connectors fitted to a penetrator panel in the container wall.
DIVE PANEL: The panel allows the diving supervisor to individually control the primary, secondary and therapeutic gas supplies to each diver and to individually monitor the exact depth and dive time of the divers. The panel is equipped as follows: 3 x Surface mount depth gauges, Mirror band with dual scale (0 100msw and 0-330fsw) 0.25% accurate across full scale. The divers umbilical connect to a penetration plate for quick mobilization and demobilization. The Divers Gas supply is 6 JIC and 4 JIC for Pneumo supply. Each Diver has the following supplies: Primary Nitrox supply Back up Nitrox supply Back up 21/79 Nitrox supply Safety valves are fitted to the Pneumo gas supply for protection of the Divers Gauge. Divers Breathing gauge is supplied on the divers manifold downstream of the valve and isolated by a dedicated valve. ANALYSIS: There are 3 oxygen analysers fitted for the dive panel (one per diver). The analyser take off is from the divers supply gas. The feed comes from the downstream feed to the diver. The analyser is fitted with high and low alarms. There is also an ambient control room analyser is set to pick up any low oxygen or high oxygen concentrations. DECK & VESSEL COMMUNICATIONS: Deck communications are from a 4 channel base station with remote outstations located around the dive system (mounted in the machinery space, Main LARS control, Standby LARS control and decompression chamber control). In addition this unit can be setup for separate dedicated links to the Bridge, ROV control room and crane operator. DIVER COMMUNICATIONS: Diver communications is via a digitally controlled analogue communications unit. This unit is setup for superior powered analogue communications from custom microphones fitted to the divers helmet. The unit also has full duplex selectable communications links allowing divers to communicate with each other during dives while still keeping the supervisor in control of all ongoing communications. In addition the unit has a dedicated outstation for connecting in the inspection coordinator to facilitate communication and recording required for inspection tasks. EMERGENCY BREATHING APPARATUS: The control room is fitted with an emergency breathing apparatus set mounted within a dedicated storage unit. The set is a self-contained unit with a pressurised gas cylinder for clean air supply. The set is fitted with a link to the diver communications unit. DIMENSIONS: Length: 6.06m Height: 2.44m Width: 2.44m Tare Weight: 8Te Max Weight: 20Te ACCESS: The container is fitted with 2 personal access doors complete with windows and locking mechanisms. The personnel access doors are located along one of the long sides (direct access into the dive control area) and on the short side (access adjacent to the inspection area).the container double doors provide access to the standby diver and umbilical storage area. GAS PIPEWORK: Gas pipework is made from Tungum tubing and is piped directly to the penetration plate and connected to standard JIC end fittings. All pipework and fittings are cleaned to a high standard required for Nitrox use. VIDEO DISPLAY & RECORDING SYSTEM: The Diver video display and recording system includes a 19 Rack mounted Blackbox DVR Recorder, topside light and camera controllers, video Quad display, Video Isolation transformers, Video and audio distribution amplifiers and display monitors. There is a second DVR located within the inspection control office and provides a means of recording inspection quality level video. For more information please contact: Offshore Diving Manager: Alan Melia +44 (0)7803 200484 Email: alan.melia@gegroup.com Vertech UK Unit H1, Aberdeen Science & Energy Park Claymore Avenue, Scotland AB23 8GW Tel: +44 (0)1224 608 608 www.vertechuk.com
Deck Decompression Chamber The Vertech containerised Deck Decompression Chamber (DDC) unit provides a means of supporting emergency and/or surface decompression for offshore surface supplied diving operations in a compact and efficient package. This is achieved by combining the decompression chamber hull, its control system, emergency gas storage and support equipment into a single containerised unit. The unit chamber hull and viewports have been designed and built in accordance with ASME VIII, ASME PVHO & Lloyds Register PD5500 (as applicable). The system fit out has be completed to a high standard and far exceeds the requirements of the IMCA D023 - DESIGN for Surface Orientated (Air) Diving Systems. The unit is extremely portable and can be rapidly mobilised as it has all equipment fitted within a standard 20' DNV 2.7.1 A60 offshore unit. The unit has been designed to keep all critical systems operational in the event of a fire or gas shutdown scenario.
1800 CHAMBER HULL: Design Code: BS/PD5500 Certification Authority: Lloyd s Register Maximum Depth Rating: 100 MSW / 334 FSW Chamber Diameter: 1800mm / 72 Medical Lock: 10 (250mm) bayonettype enclosure fitted with safety interlocks VIEWPORTS: Design Code: Maximum Depth Rating: Viewport Diameter: CHAMBER CONTROL PANEL: ASME PVHO-1-2007 100 MSW / 334 FSW 250mm The chamber is fitted with a control panel mounted on the dished end of the hull. The panel is fitted with 2 supplies (main & emergency) for blow down to each lock. In addition the panel is fitted for control of supply for the BIBs system to each lock and pipework for gas analysis. MONITORING: The control panel is fitted with 2x display monitors for viewing the chamber internal. The main lock is fitted with an internal camera and the entry lock is fitted with a camera mounted over the viewport. EMERGENCY BREATHING APPARATUS: The control room is fitted with an emergency breathing apparatus set mounted within a dedicated storage unit. The set is a self-contained unit with a pressurised gas cylinder for clean air supply. The set is fitted with a link to the diver communications unit. 16-CYLINDER GAS BANK: A 16-cylinder (50 litre) 200 Bar gas bank is fitted for emergency pressurisation of the DDC. The gas bank is split into two independent 8-cylinder supplies ensuring that there is a main and back up emergency source for the DDC. For more information please contact: Offshore Diving Manager: Alan Melia +44 (0)7803 200484 Email: alan.melia@gegroup.com Vertech UK Unit H1, Aberdeen Science & Energy Park Claymore Avenue, Scotland AB23 8GW Tel: +44 (0)1224 608 608 www.vertechuk.com ANALYSIS: There is a combined electronic oxygen and carbon dioxide analyser for monitoring of the chamber environment. The analyser is selectable between the main lock, entry lock and BIBs supply There is also an ambient control room analyser is set to pick up any low oxygen or high oxygen concentrations within the control room. CONTAINER STRUCTURE: The container is a DNV2.7-1 certified structure and lifting equipment. The container is insulated on all sides and is fitted with an internal bulkhead separation just inside the container double doors. ACCESS: The container is fitted with an external access door to the chamber control area. The door is located on the opposite end to the container double door and is f i tted wi th a window. In addition there is a man access door in the container door bulkhead for access down the side of the chamber. The chamber access doorway is fitted in the bulkhead and all chamber doors are 700mm diameter, nonlocking doors with securing points for the open position. CONTAINER DETAILS: Length: 6.06m Height: 2.44m Width: 2.44m Tare Weight: 11Te Max Gross Weight: 20Te AIR CONDITIONING/ HEATING: The air-conditioner is of the split-unit type with the evaporator situated internally and the condensing coil situated externally of the insulated environment. The air conditioner unit is suitable for heating and cooling and has a variable speed control. Permanently mounted in an enclosure that will protect the external compressor and condensing coil. Refrigerant piping will link the compressor to the internal evaporator. POWER: The main power supply to the container is through a sealed penetration system and fed directly into the main ExD distribution and control enclosure (440VAC or 380VAC). Incoming Power Transformers reduce 440V/380V to 220VAC/110VAC for control room use which is then fur ther reduced and converted to 12/24VDC for chamber internal use. All consumers are fed from double-pole isolating circuit breakers. All multi-purpose appliance outlets (plugs) are protected by 30mA residual current circuit breakers.
Machinery Container The Vertech containerised diving machinery unit provides a single container solution to providing all required equipment necessary for the ongoing dive operation. The machinery unit is split into two sections, this allows for a separate workshop and stores from the machinery space. The machinery unit is fitted with primary and backup hot water units, high pressure breathing air compressor and diver tooling hydraulic power unit. In addition the container houses the primary and secondary 440V 3- phase power distribution unit for the rest of the dive spread as well as suitable cooling circulation fans for all equipment. The stores/workshop area has lockable cabinets and shelves for storage of all spares and tools required by the Dive Technicians to carry out all planned and unplanned maintenance to keep the dive system operational at all times. The unit is extremely portable and can be rapidly mobilised as it has all equipment fitted within a standard 20' DNV 2.7.1 A0 offshore container and all service connectors fitted to a penetrator panel in the container wall.
HOT WATER UNIT: The primary electrical water heater will supply warm seawater to maintain a comfortable temperature for 3 divers simultaneously. Water supply from vessel water supply or a submersible pump Delivery rate of 45 l/min continuous to all divers Power requirements: 144kW max, 440V, 280Amps Typical outlet temperature range: 40 to 60 C at divers Note: Due to power requirements, the Hot Water Unit requires a separate power supply feed from the rest of the diving system. STANDBY HOT WATER UNIT: The secondary standby electrical heater will store warm fresh water to be ready to supply to the diver in the event of primary unit failure. Stored water supply of 400ltrs Delivery rate of 45 l/min continuous to all divers Backup time: 6-8mins Typical storage temperature range: 40 to 60 C HIGH PRESSURE COMPRESSOR: The Lenhardt & Wagner 450E compressor is an electrically driven medium capacity, breathing air compressor. Delivery Rate of 450 L/min Working Pressure of 200 BAR (2900 PSI) Automatic Condensate Drain Breathing air delivered is in compliance with EN 12021 SUBMERSIBLE PUMPS: The submersible pump can be deployed over the side of a vessel or into the Moonpool and feeds the primary hot water unit. The pump is powered and controlled via a control system located within the machinery container. Flow Rate: 50lpm at 5-6 bar Electrical Power Supply: 1.1kW max, 440V, >2Amps TOOLING HYDRAULIC POWER UNIT: The HPU is for use with underwater hydraulic tools. It is removable from the machinery container. The unit consists of the following: 20.5kW Power pack in an offshore lifting frame Adjustable pressure range: 30 200bar Max Flow Rate 56 l/min Electrical deck plugs connection (for external use) POWER DISTRIBUTION UNIT: The main power supply to the container is via an externally mounted bulkhead appliance inlet (440VAC or 380VAC) of 125amp. The backup power supply is via a 63amp appliance inlet (440VAC or 380VAC). The power source is selectable from the junction box located within the container. The distribution unit supplies power from either the primary or secondary source to all machinery within the container as well as power to; the decompression chamber container, dive control container, submersible pump and the 2 launch & recovery units. CONTAINER STRUCTURE: The container is a DNV2.7-1 certified structure and lifting equipment. The container is insulated on all sides and is fitted with an internal bulkhead separation between the machinery space and the workshop/ stores areas. ACCESS: The container is fitted with an external access door to the stores and workshop area. The door is located on the opposite end to the container double door and is fitted wi th a window. Access to the machinery space is via the main double doors of the container. CONTAINER DETAILS: Length: 6.06m Height: 2.44m Width: 2.44m Tare Weight: 7Te Max Gross Weight: 20Te For more information please contact: Offshore Diving Manager: Alan Melia +44 (0)7803 200484 Email: alan.melia@gegroup.com Vertech UK Unit H1, Aberdeen Science & Energy Park Claymore Avenue, Scotland AB23 8GW Tel: +44 (0)1224 608608 www.vertechuk.com
Divers Launch & Recovery System The Vertech Launch and Recovery System (LARS) provide a means for the safe entry and exit of the water by the divers during diving operations (primary unit) or in an emergency (secondary unit). The units are fitted with man riding hydraulic powered winches designed specifically for diving applications in a marine environment. The units are built to and classed under DNV standard and are also compliant with IMCA and LOLER requirements (where applicable). These units are also fitted with redundant hydraulic power units and electrical control systems and motors. These units are extremely portable and can be rapidly mobilised. They are also design to fit within a standard 20 offshore/shipping container should they require to be shipped to a platform or overseas.
HYDRAULIC POWER UNIT (HPU): The hydraulic power pack is situated on the A-Frame skid directly beneath the winch and control station. The power pack consists of the following: Main pressure compensated piston pump and motor rated as follows: 11kW power output 24 L/min at 210 bar (flow at 440V/60Hz) 380/440V 50/60Hz Backup fixed displacement gear pump and motor rated as follows: 9.2kW power output 19 L/min at 210 bar (flow at 440V/60Hz) 380/440V 50/60hz 1 x 150 litre main hydraulic oil tank and 1 x 85 litre backup hydraulic oil tank. Hydraulic oil filter system. Low oil level cut out. High oil temperature cut out. The control station has the following controls: A-Frame luff out and in Main wire winch in and out Guide wire winch in and out Dive Control Communications Breathing Apparatus Set DIMENSIONS: Length: 3.3m Height (Max): 4.0m Width: 2.2m Max Weight: 4.5Te DIVING BASKET: 1.2 x 1.2 x 2.2m Two man Dive basket with overhead protection frame. Cage includes diving cylinder securing ring and safety access gate. Hand holds and emergency recovery hard point. Safety lifting points welded to the top of the basket for emergency recovery. Storage space for 10 m3 onboard emergency gas in a single 50 litre 300 bar cylinder. Cylinder includes as part of the basket with 1st stage, 2 x demand valves, and 2 x open ended hoses with quarter turn isolation valves. Brass guide-wire clamps. Cage is manufactured from steel angle and tube sections and hot dipped galvanized for marine corrosion protection. BASKET WINCH: Minimum Lift Capability: Hydraulically set to 1.0 Te Maximum Lifting Speed: Controllable up to 18m per min Wire Diameter: 13mm non-rotating Wire Length: 80m Drive System: Direct hydraulic Braking: Shaft mounted non rotating multi disc internal motor brake. Hydraulic over-centre valve Automatic hydraulic band brake GUIDE WEIGHT WINCH: Minimum Lift Capability: 1.3Te Maximum Lifting Speed: Controllable up to 18m per min Wire Diameter: 10mm non-rotating Wire Length: 160m Drive System: Direct hydraulic Braking: Shaft mounted non rotating multi disc internal motor brake. Hydraulic over-centre valve Automatic hydraulic band brake For more information please contact: Offshore Diving Manager: Alan Melia +44 (0)7803 200484 Email: alan.melia@gegroup.com Vertech UK Unit H1, Aberdeen Science & Energy Park Claymore Avenue, Scotland AB23 8GW Tel: +44 (0)1224 608 608 www.vertechuk.com ADDITIONAL FEATURES: An upper limit stop system is fitted to the A-Frame to act as a safety feature. The upper limit stop system is interlocked with the HPU. The Main wire and Guide wires are terminated with molded speltor sockets. Overboard flood lights are fitted to the A-Frame.